2021-10-26  Martin Sebor  <msebor@redhat.com>

	PR tree-optimization/102238
	PR tree-optimization/102919
	* gimple-ssa-sprintf.c (get_string_length): Add an argument.
	(array_elt_at_offset): Move to pointer-query.
	(set_aggregate_size_and_offset): New function.
	(field_at_offset):  Move to pointer-query.
	(get_origin_and_offset): Rename...
	(get_origin_and_offset_r): this.  Add an argument.  Make aggregate
	handling more robust.
	(get_origin_and_offset): New.
	(alias_offset): Add an argument.
	(format_string): Use subobject size determined by get_origin_and_offset.
	* pointer-query.cc (field_at_offset): Move from gimple-ssa-sprintf.c.
	Improve/correct handling of aggregates.
	(array_elt_at_offset): Same.
	* pointer-query.h (field_at_offset): Declare.
	(array_elt_at_offset): Declare.

2021-10-26  Martin Sebor  <msebor@redhat.com>

	* builtins.c (check_strncat_sizes): Pass access_data ctor additional
	arguments.
	(expand_builtin_memcmp): Move code to gimple-ssa-warn-access.cc.
	(expand_builtin_fork_or_exec): Same.
	* gimple-array-bounds.cc (array_bounds_checker::check_mem_ref): Pass
	compute_objsize additional arguments.
	(inbounds_memaccess_p): Same.
	(array_bounds_checker::check_array_bounds): Add an assert.  Stash
	statement in a member.
	(check_array_bounds_dom_walker::before_dom_children): Same.
	* gimple-array-bounds.h (array_bounds_checker::m_stmt): New member.
	* gimple-ssa-sprintf.c (get_destination_size): Add an argument.
	(handle_printf_call): Pass a new argument.
	* gimple-ssa-warn-access.cc (get_size_range): Add an argument.
	(check_access): Add an argument and pass it along to callees.
	(check_read_access): Make a member function.
	(pass_waccess::check_strcat): Pass access_data ctor additional
	arguments.
	(pass_waccess::check_strncat): Same.
	(pass_waccess::check_stxcpy): Same.
	(pass_waccess::check_stxncpy): Same.
	(pass_waccess::check_strncmp): Same.
	(pass_waccess::check_read_access): Same.
	(pass_waccess::check_builtin): Same.
	(pass_waccess::maybe_check_access_sizes): Same.
	(pass_waccess::maybe_check_dealloc_call): Same.
	* gimple-ssa-warn-access.h (check_read_access): Declare a new
	member function.
	* pointer-query.cc (compute_objsize_r): Add an argument.
	(gimple_call_return_array): Same.
	(gimple_call_alloc_size): Same.
	(access_ref::access_ref): Same.
	(access_ref::get_ref): Same.
	(pointer_query::get_ref): Same.
	(handle_min_max_size): Pass an arguments to callees.
	(handle_array_ref): Add an argument.
	(handle_mem_ref): Same.
	(compute_objsize): Same.
	* pointer-query.h (struct access_ref): Adjust signatures.
	(struct access_data): Same.
	(gimple_call_alloc_size): Add an argument.
	(gimple_parm_array_size): Same.
	(compute_objsize): Same.
	* tree-ssa-strlen.c (strlen_pass::adjust_last_stmt): Pass an additional
	argument to compute_objsize.
	(strlen_pass::maybe_warn_overflow): Same.
	(maybe_diag_stxncpy_trunc): Same.

2021-10-26  Martin Sebor  <msebor@redhat.com>

	PR middle-end/102453
	* gimple-ssa-warn-access.cc (pass_waccess::check_atomic_builtin): New.
	(pass_waccess::check_atomic_builtin): Call it.

2021-10-26  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/102842
	* lra-constraints.c (match_reload): Ignore out in checking values
	of outs.
	(curr_insn_transform): Collect outputs before doing reloads of operands.

2021-10-26  Paul A. Clarke  <pc@us.ibm.com>

	PR target/102719
	* config/rs6000/x86intrin.h: Move some included headers to new
	headers.  Include new immintrin.h instead of those headers.
	* config/rs6000/immintrin.h: New.
	* config/rs6000/x86gprintrin.h: New.
	* config.gcc (powerpc*-*-*): Add new headers to extra_headers.

2021-10-26  Richard Biener  <rguenther@suse.de>

	* tree-vectorizer.h (vect_create_addr_base_for_vector_ref):
	Remove byte_offset parameter.
	(vect_create_data_ref_ptr): Likewise.
	* tree-vect-data-refs.c (vect_create_addr_base_for_vector_ref):
	Likewise.
	(vect_create_data_ref_ptr): Likewise.
	* tree-vect-stmts.c (vectorizable_store): Adjust.
	(vectorizable_load): Likewise.

2021-10-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/96109
	* tree-vectorizer.h (dr_misalignment): Add optional offset
	parameter.
	* tree-vect-data-refs.c (dr_misalignment): Likewise.  Remove
	offset applied for negative stride accesses.
	(vect_enhance_data_refs_alignment): Compute negative stride
	access offset and pass it to dr_misalignment.
	* tree-vect-stmts.c (get_negative_load_store_type): Pass
	negative offset to dr_misalignment.
	(get_group_load_store_type): Likewise.
	(get_load_store_type): Likewise.
	(vectorizable_store): Remove asserts about alignment.
	(vectorizable_load): Likewise.

2021-10-26  Kewen Lin  <linkw@linux.ibm.com>

	PR tree-optimization/102897
	* tree-ssa-forwprop.c (simplify_permutation): Remove a wrong assertion.

2021-10-26  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_create_addr_base_for_vector_ref):
	Take offset in bytes.
	(vect_create_data_ref_ptr): Likewise.
	* tree-vect-loop-manip.c (get_misalign_in_elems): Multiply
	offset by element size.
	(vect_create_cond_for_align_checks): Likewise.
	* tree-vect-stmts.c (get_negative_load_store_type): Likewise.
	(vectorizable_load): Remove duplicate leftover from merge
	conflict.

2021-10-26  Roger Sayle  <roger@nextmovesoftware.com>

	* config/i386/i386-expand.c (ix86_expand_v1ti_shift): New helper
	function to expand V1TI mode logical shifts by integer constants.
	(ix86_expand_v1ti_rotate): New helper function to expand V1TI
	mode rotations by integer constants.
	* config/i386/i386-protos.h (ix86_expand_v1ti_shift,
	ix86_expand_v1ti_rotate): Prototype new functions here.
	* config/i386/sse.md (ashlv1ti3, lshrv1ti3, rotlv1ti3, rotrv1ti3):
	New TARGET_SSE2 expanders to implement V1TI shifts and rotations.

2021-10-26  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (back_threader::maybe_register_path):
	Avoid threading circular paths.

2021-10-26  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (back_threader::resolve_phi):
	Attempt to resolve all incoming paths to a PHI.
	(back_threader::resolve_def): Always return true for PHIs.

2021-10-26  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (back_threader::find_paths_to_names):
	Always try to resolve path without looking back.
	* tree-ssa-threadupdate.c (dump_jump_thread): Indidicate whether
	edge is a back edge.

2021-10-26  Kewen Lin  <linkw@linux.ibm.com>

	PR tree-optimization/102789
	* tree-vect-loop-manip.c (vect_update_inits_of_drs): Do not
	update inits of simd_lane_access.

2021-10-25  Andrew MacLeod  <amacleod@redhat.com>

	* tree-vrp.c (vrp_simplify_cond_using_ranges): Add return type and
	move to vr-values.c.
	(simplify_casted_conds): Move to vrp_folder class.
	(execute_vrp): Call via vrp_folder now.
	* vr-values.c (simplify_cond_using_ranges_1): Call simplify_casted_cond.
	(simplify_using_ranges::simplify_casted_cond): Relocate from tree-vrp.c.
	* vr-values.h (simplify_casted_cond): Add prototype.

2021-10-25  Andrew MacLeod  <amacleod@redhat.com>

	* tree-vrp.c (rvrp_folder::fold_stmt): If simplification fails, try
	to fold anyway.

2021-10-25  Paul A. Clarke  <pc@us.ibm.com>

	* config/rs6000/smmintrin.h (_mm_testz_si128): Add "extern" to
	function signature.
	(_mm_testc_si128): Likewise.
	(_mm_testnzc_si128): Likewise.
	(_mm_blend_ps): Likewise.
	(_mm_blendv_ps): Likewise.
	(_mm_blend_pd): Likewise.
	(_mm_blendv_pd): Likewise.
	(_mm_ceil_pd): Likewise.
	(_mm_ceil_sd): Likewise.
	(_mm_ceil_ps): Likewise.
	(_mm_ceil_ss): Likewise.
	(_mm_floor_pd): Likewise.
	(_mm_floor_sd): Likewise.
	(_mm_floor_ps): Likewise.
	(_mm_floor_ss): Likewise.
	(_mm_minpos_epu16): Likewise.
	(_mm_mul_epi32): Likewise.
	(_mm_cvtepi8_epi16): Likewise.
	(_mm_packus_epi32): Likewise.
	(_mm_cmpgt_epi64): Likewise.

2021-10-25  Roger Sayle  <roger@nextmovesoftware.com>

	* simplify-rtx.c (simplify_binary_operation_1) [SS_ASHIFT]: Simplify
	shifts of the mode's smin_value and smax_value when the bit count
	operand doesn't have side-effects.
	[US_ASHIFT]: Likewise, simplify shifts of the mode's umax_value
	when the bit count operand doesn't have side-effects.
	(simplify_const_binary_operation) [SS_ASHIFT, US_ASHIFT]: Perform
	compile-time evaluation of saturating left shifts with constant
	arguments.

2021-10-25  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range.cc (gimple_ranger::export_global_ranges): Remove check
	for TDF_DETAILS.

2021-10-25  Andrew MacLeod  <amacleod@redhat.com>

	* flag-types.h (enum ranger_debug): Adjust values.
	* params.opt (ranger_debug): Ditto.

2021-10-25  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/102886
	* tree-sra.c (totally_scalarize_subtree): Fix the out of
	access-condition.

2021-10-25  Andrew Pinski  <apinski@marvell.com>

	* tree-ssa-dce.c (simple_dce_from_worklist):
	Check stmt_unremovable_because_of_non_call_eh_p also
	before removing the statement.

2021-10-25  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102905
	* tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
	Use vect_supportable_dr_alignment again to determine whether
	an access is supported when not aligned.

2021-10-25  Kito Cheng  <kito.cheng@sifive.com>

	* config/riscv/riscv.c (riscv_rtx_costs): Handle cost model
	for zbs extension.

2021-10-25  Jim Wilson  <jimw@sifive.com>
	    Kito Cheng  <kito.cheng@sifive.com>
	    Jia-Wei Chen  <jiawei@iscas.ac.cn>
	    Shi-Hua Liao  <shihua@iscas.ac.cn>

	* config/riscv/bitmanip.md (shiftm1): New.
	(*bset<mode>): Ditto.
	(*bset<mode>_mask): Ditto.
	(*bset<mode>_1): Ditto.
	(*bset<mode>_1_mask): Ditto.
	(*bseti<mode>): Ditto.
	(*bclr<mode>): Ditto.
	(*bclri<mode>): Ditto.
	(*binv<mode>): Ditto.
	(*binvi<mode>): Ditto.
	(*bext<mode>): Ditto.
	(*bexti): Ditto.
	* config/riscv/predicates.md (splittable_const_int_operand):
	Handle bseti.
	(single_bit_mask_operand): New.
	(not_single_bit_mask_operand): Ditto.
	(const31_operand): Ditto.
	(const63_operand): Ditto.
	* config/riscv/riscv.c (riscv_build_integer_1): Handle bseti.
	(riscv_output_move): Ditto.
	(riscv_print_operand): Handle new operand type: T and S.
	* config/riscv/riscv.h (SINGLE_BIT_MASK_OPERAND): New.

2021-10-25  Jim Wilson  <jimw@sifive.com>

	* config/riscv/riscv.c (riscv_build_integer_1): Build integer
	with rotate.

2021-10-25  Kito Cheng  <kito.cheng@sifive.com>

	* config/riscv/riscv.c (riscv_extend_cost): Handle cost model
	for zbb extension.
	(riscv_rtx_costs): Ditto.

2021-10-25  Jim Wilson  <jimw@sifive.com>
	    Kito Cheng  <kito.cheng@sifive.com>
	    Jia-Wei Chen  <jiawei@iscas.ac.cn>

	* config/riscv/bitmanip.md (bitmanip_bitwise): New.
	(bitmanip_minmax): New.
	(clz_ctz_pcnt): New.
	(bitmanip_optab): New.
	(bitmanip_insn): New.
	(*<optab>_not<mode>): New.
	(*xor_not<mode>): New.
	(<bitmanip_optab>si2): New.
	(*<bitmanip_optab>disi2): New.
	(<bitmanip_optab>di2): New.
	(*zero_extendhi<GPR:mode>2_bitmanip): New.
	(*extend<SHORT:mode><SUPERQI:mode>2_zbb): New.
	(*zero_extendhi<GPR:mode>2_zbb): New.
	(rotrsi3): New.
	(rotrdi3): New.
	(rotrsi3_sext): New.
	(rotlsi3): New.
	(rotldi3): New.
	(rotlsi3_sext): New.
	(bswap<mode>2): New.
	(<bitmanip_optab><mode>3): New.
	* config/riscv/riscv.md (type): Add rotate.
	(zero_extendhi<GPR:mode>2): Change to define_expand pattern.
	(*zero_extendhi<GPR:mode>2): New.
	(extend<SHORT:mode><SUPERQI:mode>2): Change to define_expand pattern.
	(*extend<SHORT:mode><SUPERQI:mode>2): New.

2021-10-25  Kito Cheng  <kito.cheng@sifive.com>

	* config/riscv/riscv.c (riscv_extend_cost): Handle cost model
	for zba extension.
	(riscv_rtx_costs): Ditto.

2021-10-25  Jim Wilson  <jimw@sifive.com>
	    Kito Cheng  <kito.cheng@sifive.com>
	    Jia-Wei Chen  <jiawei@iscas.ac.cn>

	* config/riscv/bitmanip.md (*zero_extendsidi2_bitmanip): New.
	(*shNadd): Ditto.
	(*shNadduw): Ditto.
	(*add.uw): Ditto.
	(*slliuw): Ditto.
	(riscv_rtx_costs): Ditto.
	* config/riscv/riscv.md: Include bitmanip.md
	(type): Add bitmanip bype.
	(zero_extendsidi2): Change to define_expand pattern.
	(*zero_extendsidi2_internal): New.
	(zero_extendsidi2_shifted): Disable for ZBA.

2021-10-25  Kito Cheng  <kito.cheng@sifive.com>

	* common/config/riscv/riscv-common.c (riscv_ext_version_table):
	Add zba, zbb, zbc and zbs.
	(riscv_ext_flag_table): Ditto.
	* config/riscv/riscv-opts.h (MASK_ZBA): New.
	(MASK_ZBB): Ditto.
	(MASK_ZBC): Ditto.
	(MASK_ZBS): Ditto.
	(TARGET_ZBA): Ditto.
	(TARGET_ZBB): Ditto.
	(TARGET_ZBC): Ditto.
	(TARGET_ZBS): Ditto.
	* config/riscv/riscv.opt (riscv_zb_subext): New.

2021-10-25  liuhongt  <hongtao.liu@intel.com>

	PR target/102464
	* match.pd: Simplify (_Float16) sqrtf((float) a) to .SQRT(a)
	when direct_internal_fn_supported_p, similar for sqrt/sqrtl.

2021-10-25  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102920
	* tree-ssa-sccvn.h (expressions_equal_p): Add argument
	controlling VN_TOP matching behavior.
	* tree-ssa-sccvn.c (expressions_equal_p): Likewise.
	(vn_phi_eq): Do not optimistically match VN_TOP.

2021-10-25  konglin1  <lingling.kong@intel.com>

	* config/i386/sse.md (fma_<mode>_fadd_fmul): Add new
	define_insn_and_split.
	(fma_<mode>_fadd_fcmul):Likewise
	(fma_<complexopname>_<mode>_fma_zero):Likewise

2021-10-24  John David Anglin  <danglin@gcc.gnu.org>

	* config/pa/pa-d.c (pa_d_handle_target_float_abi): Don't check
	TARGET_DISABLE_FPREGS.
	* config/pa/pa.c (fix_range): Use MASK_SOFT_FLOAT instead of
	MASK_DISABLE_FPREGS.
	(hppa_rtx_costs): Don't check TARGET_DISABLE_FPREGS.  Adjust
	cost of hardware integer multiplication.
	(pa_conditional_register_usage): Don't check TARGET_DISABLE_FPREGS.
	* config/pa/pa.h (INT14_OK_STRICT): Likewise.
	* config/pa/pa.md: Don't check TARGET_DISABLE_FPREGS. Check
	TARGET_SOFT_FLOAT in patterns that use xmpyu instruction.
	* config/pa/pa.opt (mdisable-fpregs): Change target mask to
	SOFT_FLOAT.  Revise comment.
	(msoft-float): New option.

2021-10-24  John David Anglin  <danglin@gcc.gnu.org>

	* config/pa/pa.md: Don't use 'G' constraint in integer move patterns.

2021-10-24  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/install.texi (Specific): Remove obsolete details
	around GNU/Linux on Itanium.
	(Specific): Remove reference to Windows for Itanium.

2021-10-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* config/i386/x86-tune-sched-bd.c (dispatch_group): Commentary
	typo fix.

2021-10-23  Jan Hubicka  <hubicka@ucw.cz>

	* tree-ssa-structalias.c (compute_points_to_sets): Cleanup.

2021-10-23  Roger Sayle  <roger@nextmovesoftware.com>

	* config/i386/sse.md (<any_logic>v1ti3): New define_insn to
	implement V1TImode AND, IOR and XOR on TARGET_SSE2 (and above).
	(one_cmplv1ti2): New define expand.

2021-10-22  Eric Gallager  <egallager@gcc.gnu.org>

	PR other/102663
	* Makefile.in: Handle dvidir and install-dvi target.
	* configure: Regenerate.
	* configure.ac: Add install-dvi to target_list.

2021-10-22  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/install.texi (Binaries): Convert mingw-w64.org to https.
	(Specific): Ditto.

2021-10-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102893
	* tree-ssa-dce.c (find_obviously_necessary_stmts): Fix the
	test for an exit edge.

2021-10-22  Aldy Hernandez  <aldyh@redhat.com>
	    Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-path.cc (path_range_query::compute_phi_relations):
	Kill any global relations we may know before registering a new
	one.
	* value-relation.cc (path_oracle::killing_def): New.
	* value-relation.h (path_oracle::killing_def): New.

2021-10-22  Richard Biener  <rguenther@suse.de>

	PR bootstrap/102681
	* tree-ssa-sccvn.c (vn_phi_insert): For undefined SSA args
	record VN_TOP.
	(vn_phi_lookup): Likewise.

2021-10-21  H.J. Lu  <hjl.tools@gmail.com>

	PR target/98667
	* doc/invoke.texi: Document -fcf-protection requires i686 or
	new.

2021-10-21  Eric Botcazou  <ebotcazou@adacore.com>

	PR middle-end/102764
	* cfgexpand.c (expand_gimple_basic_block): Robustify latest change.

2021-10-21  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (__STRUCTN): Delete function
	macro and all invocations.

2021-10-21  Andrew MacLeod  <amacleod@redhat.com>

	* doc/invoke.texi (ranger-debug): Document.
	* flag-types.h (enum ranger_debug): New.
	(enum evrp_mode): Remove debug values.
	* gimple-range-cache.cc (DEBUG_RANGE_CACHE): Use new debug flag.
	* gimple-range-gori.cc (gori_compute::gori_compute): Ditto.
	* gimple-range.cc (gimple_ranger::gimple_ranger): Ditto.
	* gimple-ssa-evrp.c (hybrid_folder::choose_value): Ditto.
	(execute_early_vrp): Use evrp-mode directly.
	* params.opt (enum evrp_mode): Remove debug values.
	(ranger-debug): New.
	(ranger-logical-depth): Relocate to be in alphabetical order.

2021-10-21  Andrew MacLeod  <amacleod@redhat.com>

	* doc/invoke.texi: (vrp1-mode, vrp2-mode): Document.
	* flag-types.h: (enum vrp_mode): New.
	* params.opt: (vrp1-mode, vrp2-mode): New.
	* tree-vrp.c (vrp_pass_num): New.
	(pass_vrp::pass_vrp): Set pass number.
	(pass_vrp::execute): Choose which VRP mode to execute.

2021-10-21  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-ssa-evrp.c (class rvrp_folder): Move to tree-vrp.c.
	(execute_early_vrp): For ranger only mode, invoke ranger_vrp.
	* tree-vrp.c (class rvrp_folder): Relocate here.
	(execute_ranger_vrp): New.
	* tree-vrp.h (execute_ranger_vrp): Export.

2021-10-21  Martin Liska  <mliska@suse.cz>

	PR debug/102585
	PR bootstrap/102766
	* opts.c (finish_options): Process flag_var_tracking* options
	here as they can be adjusted by optimize attribute.
	Process also flag_syntax_only and flag_gtoggle.
	* toplev.c (process_options): Remove it here.
	* common.opt: Make debug_nonbind_markers_p as PerFunction
	attribute as it depends on optimization level.

2021-10-21  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/102505
	* tree-sra.c (totally_scalarize_subtree): Check that the
	encountered field fits within the acces we would like to put it
	in.

2021-10-21  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c
	(back_threader::maybe_register_path): Remove circular paths check.

2021-10-21  Richard Biener  <rguenther@suse.de>

	* toplev.c (process_options): Move the initial debug_hooks
	setting ...
	(toplev::main): ... before the call of the post_options
	langhook.

2021-10-21  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102847
	* tree-vect-stmts.c (vect_model_load_cost): Add the scalar
	load cost in the prologue for VMAT_INVARIANT.

2021-10-21  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102847
	* tree-vect-stmts.c (vect_model_load_cost): Explicitely
	handle VMAT_INVARIANT as a splat in the prologue.

2021-10-21  Hongyu Wang  <hongyu.wang@intel.com>

	PR target/102812
	* config/i386/i386.c (ix86_get_ssemov): Adjust HFmode vector
	move to use the same logic as HImode.

2021-10-21  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (vect_build_slp_tree_1): Remove
	superfluous gimple_call_nothrow_p check.

2021-10-21  Andrew Pinski  <apinski@marvell.com>

	* tree-cfg.c (maybe_remove_writeonly_store): Add dce_ssa_names argument.
	Mark the ssa-name of the rhs as one to be removed.
	(execute_fixup_cfg): Update call to maybe_remove_writeonly_store.
	Call simple_dce_from_worklist at the end to a simple dce.

2021-10-21  Andrew Pinski  <apinski@marvell.com>

	* tree-cfg.c (maybe_remove_writeonly_store): New function
	factored out from ...
	(execute_fixup_cfg): Here. Call maybe_remove_writeonly_store.

2021-10-21  Andrew Pinski  <apinski@marvell.com>

	* tree-cfg.c (execute_fixup_cfg): Remove comment
	about standalone pass.

2021-10-21  Andrew Pinski  <apinski@marvell.com>

	* tree-cfg.c (execute_fixup_cfg): Output when the statement
	is removed when it is a write only var.

2021-10-21  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (back_threader::maybe_register_path):
	Avoid threading circular paths.

2021-10-20  Alex Coplan  <alex.coplan@arm.com>

	* calls.c (initialize_argument_information): Remove some dead
	code, remove handling for function_arg returning const_int.
	* doc/tm.texi: Delete documentation for unused target hooks.
	* doc/tm.texi.in: Likewise.
	* target.def (load_bounds_for_arg): Delete.
	(store_bounds_for_arg): Delete.
	(load_returned_bounds): Delete.
	(store_returned_bounds): Delete.
	* targhooks.c (default_load_bounds_for_arg): Delete.
	(default_store_bounds_for_arg): Delete.
	(default_load_returned_bounds): Delete.
	(default_store_returned_bounds): Delete.
	* targhooks.h (default_load_bounds_for_arg): Delete.
	(default_store_bounds_for_arg): Delete.
	(default_load_returned_bounds): Delete.
	(default_store_returned_bounds): Delete.

2021-10-20  Jonathan Wakely  <jwakely@redhat.com>

	* doc/extend.texi (Basic Asm): Clarify that asm is not an
	extension in C++.
	* doc/invoke.texi (-fno-asm): Fix description for C++.

2021-10-20  Jonathan Wakely  <jwakely@redhat.com>

	* doc/install.texi: Remove link to old.html

2021-10-20  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-simd.md (*aarch64_cmtst_same_<mode>): New.

2021-10-20  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-simd.md (*aarch64_narrow_trunc<mode>): New.

2021-10-20  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_simd_ashr<mode>): Add case cmp
	case.
	* config/aarch64/constraints.md (D1): New.

2021-10-20  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-simd.md
	(*aarch64_<srn_op>topbits_shuffle<mode>_le): New.
	(*aarch64_topbits_shuffle<mode>_le): New.
	(*aarch64_<srn_op>topbits_shuffle<mode>_be): New.
	(*aarch64_topbits_shuffle<mode>_be): New.
	* config/aarch64/predicates.md
	(aarch64_simd_shift_imm_vec_exact_top): New.

2021-10-20  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-simd.md (*aarch64_<srn_op>shrn<mode>_vect,
	*aarch64_<srn_op>shrn<mode>2_vect_le,
	*aarch64_<srn_op>shrn<mode>2_vect_be): New.
	* config/aarch64/iterators.md (srn_op): New.

2021-10-20  Chung-Lin Tang  <cltang@codesourcery.com>

	* omp-low.c (omp_copy_decl_2): For !ctx, use record_vars to add new copy
	as local variable.
	(scan_sharing_clauses): Place copy of OMP_CLAUSE_IN_REDUCTION decl in
	ctx->outer instead of ctx.

2021-10-20  Martin Liska  <mliska@suse.cz>

	Revert:
	2021-10-19  Martin Liska  <mliska@suse.cz>

	PR target/102374
	* config/i386/i386-options.c (ix86_valid_target_attribute_inner_p): Strip whitespaces.
	* system.h (strip_whilespaces): New function.

2021-10-20  Martin Liska  <mliska@suse.cz>

	Revert:
	2021-10-19  Martin Liska  <mliska@suse.cz>

	PR target/102375
	* config/aarch64/aarch64.c (aarch64_process_one_target_attr):
	Strip whitespaces.

2021-10-20  Wilco Dijkstra  <wdijkstr@arm.com>

	* config/aarch64/aarch64.c (aarch64_case_values_threshold):
	Change to 8 with -Os, 11 otherwise.

2021-10-20  Wilco Dijkstra  <wdijkstr@arm.com>

	* config/aarch64/aarch64.c (neoversev1_tunings):
	Enable AARCH64_EXTRA_TUNE_CHEAP_SHIFT_EXTEND.
	(neoversen2_tunings): Likewise.

2021-10-20  Wilco Dijkstra  <wdijkstr@arm.com>

	PR target/100966
	* config/aarch64/aarch64.md (frint_pattern): Update comment.
	* config/aarch64/aarch64-simd-builtins.def: Change frintn to roundeven.
	* config/aarch64/arm_fp16.h: Change frintn to roundeven.
	* config/aarch64/arm_neon.h: Likewise.
	* config/aarch64/iterators.md (frint_pattern): Use roundeven for FRINTN.

2021-10-20  Martin Liska  <mliska@suse.cz>

	* config/arm/arm.c (arm_unwind_emit_sequence): Do not declare
	already declared global variable.
	(arm_unwind_emit_set): Use out_file as function argument.
	(arm_unwind_emit): Likewise.
	* config/darwin.c (machopic_output_data_section_indirection): Likewise.
	(machopic_output_stub_indirection): Likewise.
	(machopic_output_indirection): Likewise.
	(machopic_finish): Likewise.
	* config/i386/i386.c (ix86_asm_output_function_label): Likewise.
	* config/i386/winnt.c (i386_pe_seh_unwind_emit): Likewise.
	* config/ia64/ia64.c (process_epilogue): Likewise.
	(process_cfa_adjust_cfa): Likewise.
	(process_cfa_register): Likewise.
	(process_cfa_offset): Likewise.
	(ia64_asm_unwind_emit): Likewise.
	* config/s390/s390.c (s390_asm_output_function_label): Likewise.

2021-10-20  Andre Simoes Dias Vieira  <andre.simoesdiasvieira@arm.com>

	* config/aarch64/aarch64-builtins.c
	(aarch64_general_gimple_fold_builtin):
	lower vld1 and vst1 variants of the neon builtins
	* config/aarch64/aarch64-protos.h:
	(aarch64_general_gimple_fold_builtin): Add gsi parameter.
	* config/aarch64/aarch64.c (aarch64_general_gimple_fold_builtin):
	Likwise.

2021-10-20  Andre Simoes Dias Vieira  <andre.simoesdiasvieira@arm.com>

	* match.pd: Generate IFN_TRUNC.

2021-10-20  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102853
	* tree-data-ref.c (split_constant_offset_1): Bail out
	immediately if the expression traps on overflow.

2021-10-20  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (back_threader::~back_threader): Remove.

2021-10-20  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadupdate.c (back_jt_path_registry::adjust_paths_after_duplication):
	Remove superflous debugging message.
	(back_jt_path_registry::duplicate_thread_path): Same.

2021-10-20  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (back_threader_registry::back_threader_registry):
	Remove.
	(back_threader_registry::register_path): Remove m_threaded_paths.

2021-10-20  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/102814
	* doc/invoke.texi: Document --param=max-fsm-thread-length.
	* params.opt: Add --param=max-fsm-thread-length.
	* tree-ssa-threadbackward.c
	(back_threader_profitability::profitable_path_p): Fail on paths
	longer than max-fsm-thread-length.

2021-10-20  Eric Botcazou  <ebotcazou@adacore.com>

	PR middle-end/102764
	* cfgexpand.c (expand_gimple_basic_block): Disregard a final debug
	statement to reset the current location for the outgoing edges.

2021-10-20  Aldy Hernandez  <aldyh@redhat.com>
	    Richard Biener  <rguenther@suse.de>

	* tree-ssa-threadupdate.c (cancel_thread): Dump threading reason
	on the same line as the threading cancellation.
	(jt_path_registry::cancel_invalid_paths): Avoid rotating loops.
	Avoid threading through loop headers where the path remains in the
	loop.

2021-10-20  Siddhesh Poyarekar  <siddhesh@gotplt.org>

	* tree-object-size.c (unknown): Make into a function.  Adjust
	all uses.
	(unknown_object_size): Simplify implementation.

2021-10-20  Hongtao Liu  <hongtao.liu@intel.com>
	    Kewen Lin  <linkw@linux.ibm.com>

	* doc/sourcebuild.texi (Effective-Target Keywords): Document
	vect_slp_v2qi_store, vect_slp_v4qi_store, vect_slp_v8qi_store,
	vect_slp_v16qi_store, vect_slp_v2hi_store,
	vect_slp_v4hi_store, vect_slp_v2si_store, vect_slp_v4si_store.

2021-10-19  Jonathan Wakely  <jwakely@redhat.com>

	* doc/extend.texi (Basic PowerPC Built-in Functions): Fix typo.

2021-10-19  Paul A. Clarke  <pc@us.ibm.com>

	PR target/101893
	PR target/102719
	* config/rs6000/emmintrin.h: Guard POWER8 intrinsics.
	* config/rs6000/pmmintrin.h: Same.
	* config/rs6000/smmintrin.h: Same.
	* config/rs6000/tmmintrin.h: Same.

2021-10-19  Paul A. Clarke  <pc@us.ibm.com>

	* config.gcc (extra_headers): Add nmmintrin.h.

2021-10-19  Richard Biener  <rguenther@suse.de>

	* tree-vectorizer.h (vect_supportable_dr_alignment): Add
	misalignment parameter.
	* tree-vect-data-refs.c (vect_get_peeling_costs_all_drs):
	Do not change DR_MISALIGNMENT in place, instead pass the
	adjusted misalignment to vect_supportable_dr_alignment.
	(vect_peeling_supportable): Likewise.
	(vect_peeling_hash_get_lowest_cost): Adjust.
	(vect_enhance_data_refs_alignment): Likewise.
	(vect_vfa_access_size): Likewise.
	(vect_supportable_dr_alignment): Add misalignment
	parameter and simplify.
	* tree-vect-stmts.c (get_negative_load_store_type): Adjust.
	(get_group_load_store_type): Likewise.
	(get_load_store_type): Likewise.

2021-10-19  Clément Chigot  <clement.chigot@atos.net>

	* config/rs6000/rs6000.c (rs6000_xcoff_file_end): Move
	__tls_get_addr reference to .text csect.

2021-10-19  Martin Liska  <mliska@suse.cz>

	PR target/102375
	* config/aarch64/aarch64.c (aarch64_process_one_target_attr):
	Strip whitespaces.

2021-10-19  Richard Biener  <rguenther@suse.de>

	* tree-vectorizer.h (vect_get_store_cost): Adjust signature.
	(vect_get_load_cost): Likewise.
	* tree-vect-data-refs.c (vect_get_data_access_cost): Get
	alignment support scheme and misalignment as arguments
	and pass them down.
	(vect_get_peeling_costs_all_drs): Compute that info here
	and note that we shouldn't need to.
	* tree-vect-stmts.c (vect_model_store_cost): Get
	alignment support scheme and misalignment as arguments.
	(vect_get_store_cost): Likewise.
	(vect_model_load_cost): Likewise.
	(vect_get_load_cost): Likewise.
	(vectorizable_store): Pass down alignment support scheme
	and misalignment to costing.
	(vectorizable_load): Likewise.

2021-10-19  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.c (get_negative_load_store_type): Add
	offset output parameter and initialize it.
	(get_group_load_store_type): Likewise.
	(get_load_store_type): Likewise.
	(vectorizable_store): Use offset as computed by
	get_load_store_type.
	(vectorizable_load): Likewise.

2021-10-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102827
	* tree-if-conv.c (predicate_statements): Add pe parameter
	and use that edge to insert invariant stmts on.
	(combine_blocks): Pass through pe.
	(tree_if_conversion): Compute the edge to insert invariant
	stmts on and pass it along.

2021-10-19  Roger Sayle  <roger@nextmovesoftware.com>

	PR target/102785
	* config/bfin/bfin.md (addsubv2hi3, subaddv2hi3, ssaddsubv2hi3,
	sssubaddv2hi3):  Swap the order of operators in vec_concat.

2021-10-19  Xionghu Luo  <luoxhu@linux.ibm.com>

	* config/rs6000/altivec.md (*altivec_vmrghb_internal): Delete.
	(altivec_vmrghb_direct): New.
	(*altivec_vmrghh_internal): Delete.
	(altivec_vmrghh_direct): New.
	(*altivec_vmrghw_internal): Delete.
	(altivec_vmrghw_direct_<mode>): New.
	(altivec_vmrghw_direct): Delete.
	(*altivec_vmrglb_internal): Delete.
	(altivec_vmrglb_direct): New.
	(*altivec_vmrglh_internal): Delete.
	(altivec_vmrglh_direct): New.
	(*altivec_vmrglw_internal): Delete.
	(altivec_vmrglw_direct_<mode>): New.
	(altivec_vmrglw_direct): Delete.
	* config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Adjust.
	* config/rs6000/rs6000.c (altivec_expand_vec_perm_const):
	Adjust.
	* config/rs6000/vsx.md (vsx_xxmrghw_<mode>): Adjust.
	(vsx_xxmrglw_<mode>): Adjust.

2021-10-19  Aldy Hernandez  <aldyh@redhat.com>

	* passes.def: Change threading comment before pass_ccp pass.

2021-10-19  Haochen Gui  <guihaoc@gcc.gnu.org>

	* config/rs6000/rs6000-call.c (altivec_expand_lxvr_builtin):
	Modify the expansion for sign extension. All extensions are done
	within VSX registers.

2021-10-19  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.c (get_group_load_store_type): Add
	misalignment output parameter and initialize it.
	(get_group_load_store_type): Likewise.
	(vectorizable_store): Remove now redundant queries.
	(vectorizable_load): Likewise.

2021-10-19  Richard Biener  <rguenther@suse.de>

	* tree-vectorizer.h (vect_supportable_dr_alignment): Remove
	check_aligned argument.
	* tree-vect-data-refs.c (vect_supportable_dr_alignment):
	Likewise.
	(vect_peeling_hash_insert): Add supportable_if_not_aligned
	argument and do not call vect_supportable_dr_alignment here.
	(vect_peeling_supportable): Adjust.
	(vect_enhance_data_refs_alignment): Compute whether the
	access is supported with different alignment here and
	pass that down to vect_peeling_hash_insert.
	(vect_vfa_access_size): Adjust.
	* tree-vect-stmts.c (vect_get_store_cost): Likewise.
	(vect_get_load_cost): Likewise.
	(get_negative_load_store_type): Likewise.
	(get_group_load_store_type): Likewise.
	(get_load_store_type): Likewise.

2021-10-19  Martin Liska  <mliska@suse.cz>

	PR target/102374
	* config/i386/i386-options.c (ix86_valid_target_attribute_inner_p): Strip whitespaces.
	* system.h (strip_whilespaces): New function.

2021-10-19  dianhong xu  <dianhong.xu@intel.com>

	* config/i386/avx512fp16intrin.h:
	(_mm512_set1_pch): New intrinsic.
	* config/i386/avx512fp16vlintrin.h:
	(_mm256_set1_pch): New intrinsic.
	(_mm_set1_pch): Ditto.

2021-10-18  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/102796
	* gimple-range.cc (gimple_ranger::range_on_edge): Process EH edges
	normally.  Return get_tree_range for non gimple_range_ssa_p names.
	(gimple_ranger::range_of_stmt): Use get_tree_range for non
	gimple_range_ssa_p names.

2021-10-18  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/102761
	* config/i386/i386.c (ix86_print_operand_address):
	Error out for non-address_operand asm operands.

2021-10-18  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_peeling_hash_insert): Do
	not auto-convert dr_alignment_support to bool.
	(vect_peeling_supportable): Likewise.
	(vect_enhance_data_refs_alignment): Likewise.
	(vect_supportable_dr_alignment): Commonize read/write case.
	* tree-vect-stmts.c (vect_get_store_cost): Use
	dr_alignment_support, not int, for the vect_supportable_dr_alignment
	result.
	(vect_get_load_cost): Likewise.

2021-10-18  Siddhesh Poyarekar  <siddhesh@gotplt.org>

	* tree-object-size.c (object_sizes_execute): Consolidate LHS
	null check and do it early.

2021-10-18  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.c (vectorizable_store): Use the
	computed alignment scheme instead of querying
	aligned_access_p.

2021-10-18  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.c (vectorizable_store): Do not recompute
	alignment scheme already determined by get_load_store_type.

2021-10-18  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (class pass_thread_jumps_full):
	Clone corresponding pass.

2021-10-18  Roger Sayle  <roger@nextmovesoftware.com>

	* combine.c (recog_for_combine): For an unrecognized move/set of
	a constant, try force_const_mem to place it in the constant pool.
	* cse.c (constant_pool_entries_cost, constant_pool_entries_regcost):
	Delete global variables (that are no longer assigned a cost value).
	(cse_insn): Simplify logic for deciding whether to place a folded
	constant in the constant pool using force_const_mem.
	(cse_main): Remove zero initialization of constant_pool_entries_cost
	and constant_pool_entries_regcost.
	* config/i386/i386.c (ix86_rtx_costs): Make memory accesses
	fractionally more expensive, when optimizing for speed.

2021-10-18  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/102746
	PR gcov-profile/102747
	* gcov.c (main): Return return_code.
	(output_gcov_file): Mark return_code when error happens.
	(generate_results): Likewise.
	(read_graph_file): Likewise.
	(read_count_file): Likewise.

2021-10-18  Roger Sayle  <roger@nextmovesoftware.com>

	* config/bfin/bfin.md (define_constants): Remove UNSPEC_ONES.
	(define_insn "ones"): Replace UNSPEC_ONES with a truncate of
	a popcount, allowing compile-time evaluation/simplification.
	(popcountsi2, popcounthi2): New expanders using a "ones" insn.

2021-10-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102788
	* tree-vect-patterns.c (vect_init_pattern_stmt): Allow
	a NULL vectype.
	(vect_pattern_recog_1): Likewise.
	(vect_recog_bool_pattern): Continue matching the pattern
	even if we do not have a vector type for a conversion
	result.

2021-10-18  Roger Sayle  <roger@nextmovesoftware.com>

	* simplify-rtx.c (simplify_const_unary_operation) [SS_NEG, SS_ABS]:
	Evalute SS_NEG and SS_ABS of a constant argument.

2021-10-18  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>

	PR target/93183
	* gimple-match-head.c (try_conditional_simplification): Add case for single operand.
	* internal-fn.def: Add entry for COND_NEG internal function.
	* internal-fn.c (FOR_EACH_CODE_MAPPING): Add entry for
	NEGATE_EXPR, COND_NEG mapping.
	* optabs.def: Add entry for cond_neg_optab.
	* match.pd (UNCOND_UNARY, COND_UNARY): New operator lists.
	(vec_cond COND (foo A) B) -> (IFN_COND_FOO COND A B): New pattern.
	(vec_cond COND B (foo A)) -> (IFN_COND_FOO ~COND A B): Likewise.

2021-10-18  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-strlen.c (class strlen_pass): Rename from
	strlen_dom_walker.
	(handle_builtin_stxncpy_strncat): Move to strlen_pass.
	(handle_assign): Same.
	(adjust_last_stmt): Same.
	(maybe_warn_overflow): Same.
	(handle_builtin_strlen): Same.
	(handle_builtin_strchr): Same.
	(handle_builtin_strcpy): Same.
	(handle_builtin_strncat): Same.
	(handle_builtin_stxncpy_strncat): Same.
	(handle_builtin_memcpy): Same.
	(handle_builtin_strcat): Same.
	(handle_alloc_call): Same.
	(handle_builtin_memset): Same.
	(handle_builtin_memcmp): Same.
	(get_len_or_size): Same.
	(strxcmp_eqz_result): Same.
	(handle_builtin_string_cmp): Same.
	(handle_pointer_plus): Same.
	(count_nonzero_bytes_addr): Same.
	(count_nonzero_bytes): Same.
	(handle_store): Same.
	(strlen_check_and_optimize_call): Same.
	(handle_integral_assign): Same.
	(check_and_optimize_stmt): Same.
	(printf_strlen_execute): Rename strlen_dom_walker to strlen_pass.

2021-10-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102798
	* tree-vect-data-refs.c (vect_create_addr_base_for_vector_ref):
	Only copy points-to info to newly generated SSA names.

2021-10-18  Martin Liska  <mliska@suse.cz>

	* dbgcnt.c (dbg_cnt_process_opt): Remove unused but set variable.
	* gcov.c (get_cycles_count): Likewise.
	* lto-compress.c (lto_compression_zlib): Likewise.
	(lto_uncompression_zlib): Likewise.
	* targhooks.c (default_pch_valid_p): Likewise.

2021-10-17  Aldy Hernandez  <aldyh@redhat.com>

	* tree-pass.h (make_pass_thread_jumps_full): New.
	* tree-ssa-threadbackward.c (pass_thread_jumps::gate): Inline.
	(try_thread_blocks): Add resolve and speed arguments.
	(pass_thread_jumps::execute): Inline.
	(do_early_thread_jumps): New.
	(do_thread_jumps): New.
	(make_pass_thread_jumps): Move.
	(pass_early_thread_jumps::gate): Inline.
	(pass_early_thread_jumps::execute): Inline.
	(class pass_thread_jumps_full): New.

2021-10-16  Piotr Kubaj  <pkubaj@FreeBSD.org>

	* configure.ac: Treat powerpc64*-*-freebsd* the same as
	powerpc64-*-freebsd*.
	* configure: Regenerate.

2021-10-16  H.J. Lu  <hjl.tools@gmail.com>

	* value-query.cc (get_ssa_name_ptr_info_nonnull): Change
	set_ptr_nonull to set_ptr_nonnull in comments.

2021-10-16  Jan Hubicka  <hubicka@ucw.cz>

	PR tree-optimization/102720
	* tree-ssa-structalias.c (compute_points_to_sets): Fix producing
	of call used and clobbered sets.

2021-10-15  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.h (LINK_COMMAND_SPEC_A): Update 'r' handling to
	skip gomp and itm when r or nodefaultlibs is given.
	(DSYMUTIL_SPEC): Do not call dsymutil for '-r' link lines.
	Update ordering of exclusions, remove duplicate 'v' addition
	(collect2 will add this from the main command line).

2021-10-15  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin-driver.c (darwin_driver_init): Revise comments, handle
	filelist and framework options in specs instead of code.
	* config/darwin.h (SUBTARGET_DRIVER_SELF_SPECS): Update to handle link
	specs that are really driver ones.
	(DARWIN_CC1_SPEC): Likewise.
	(CPP_SPEC): Likewise.
	(SYSROOT_SPEC): Append space.
	(LINK_SYSROOT_SPEC): Remove most driver link specs.
	(STANDARD_STARTFILE_PREFIX_2): Update link-related specs.
	(STARTFILE_SPEC): Likewise.
	(ASM_MMACOSX_VERSION_MIN_SPEC): Fix line wrap.
	(ASM_SPEC): Update driver-related specs.
	(ASM_FINAL_SPEC): Likewise.
	* config/darwin.opt: Remove now unused option aliases.
	* config/i386/darwin.h (EXTRA_ASM_OPTS): Ensure space after opt.
	(ASM_SPEC): Update driver-related specs.

2021-10-15  Roger Sayle  <roger@nextmovesoftware.com>

	* config/i386/i386.c (ix86_hardreg_mov_ok): For vector modes,
	allow standard_sse_constant_p immediate constants.

2021-10-15  Iain Sandoe  <iain@sandoe.co.uk>

	* config.gcc: Add tm-dwarf2.h to tm_d-file.

2021-10-15  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-fold.h (gimple_range_ssa_p): Don't process names
	that occur in abnormal phis.
	* gimple-range.cc (gimple_ranger::range_on_edge): Return false for
	abnormal and EH edges.
	* gimple-ssa-evrp.c (rvrp_folder::value_of_expr): Ditto.
	(rvrp_folder::value_on_edge): Ditto.
	(rvrp_folder::value_of_stmt): Ditto.
	(hybrid_folder::value_of_expr): Ditto for ranger queries.
	(hybrid_folder::value_on_edge): Ditto.
	(hybrid_folder::value_of_stmt): Ditto.
	* value-query.cc (gimple_range_global): Always return a range if
	the type is supported.

2021-10-15  John David Anglin  <danglin@gcc.gnu.org>

	* config/pa/pa.md: Consistently use "rG" constraint for copy
	instruction in move patterns.

2021-10-15  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn-hsa.h (S_FIJI): Set unconditionally.
	(S_900): Likewise.
	(S_906): Likewise.
	* config/gcn/gcn.c: Hard code SRAM ECC settings for old architectures.
	* config/gcn/mkoffload.c (ELFABIVERSION_AMDGPU_HSA): Rename to ...
	(ELFABIVERSION_AMDGPU_HSA_V3): ... this.
	(ELFABIVERSION_AMDGPU_HSA_V4): New.
	(SET_SRAM_ECC_UNSUPPORTED): New.
	(copy_early_debug_info): Create elf flags to match the other objects.
	(main): Just let the attribute flags pass through.

2021-10-15  Stefan Schulze Frielinghaus  <stefansf@linux.ibm.com>

	* tree-loop-distribution.c (reduction_var_overflows_first):
	Pass the type of reduction_var as first argument as it is also
	done for the load type.
	(loop_distribution::transform_reduction_loop): Add missing
	TREE_TYPE while determining precission of reduction_var.

2021-10-15  Richard Biener  <rguenther@suse.de>

	* defaults.h (PREFERRED_DEBUGGING_TYPE): Choose DWARF2_DEBUG
	when not set.
	* toplev.c (process_options): Warn when STABS debugging is
	enabled but not the preferred format.
	* config/pa/som.h (PREFERRED_DEBUGGING_TYPE): Define to
	DBX_DEBUG.
	* config/pdp11/pdp11.h (PREFERRED_DEBUGGING_TYPE): Likewise.

2021-10-15  Richard Biener  <rguenther@suse.de>

	PR ipa/102762
	* tree-inline.c (copy_bb): Avoid underflowing nargs.

2021-10-15  Hongyu Wang  <hongyu.wang@intel.com>

	* config/i386/i386-expand.c (ix86_expand_vec_perm): Convert
	HFmode input operand to HImode.
	(ix86_vectorize_vec_perm_const): Likewise.
	* config/i386/sse.md (*avx512bw_permvar_truncv16siv16hi_1_hf):
	New define_insn.
	(*avx512f_permvar_truncv8siv8hi_1_hf):
	Likewise.

2021-10-15  Richard Biener  <rguenther@suse.de>

	PR middle-end/102682
	* expmed.c (store_bit_field_1): Ensure a LHS subreg would
	not create a paradoxical subreg.

2021-10-15  Hongyu Wang  <hongyu.wang@intel.com>

	* config/i386/i386-expand.c (ix86_expand_vector_init):
	For half_vector concat for HFmode, handle them like HImode.

2021-10-14  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (class back_threader): Add m_resolve.
	(back_threader::back_threader): Same.
	(back_threader::resolve_phi): Try to solve without looking back if
	possible.
	(back_threader::find_paths_to_names): Same.
	(try_thread_blocks): Pass resolve argument to back threader.
	(pass_early_thread_jumps::execute): Same.

2021-10-14  Aldy Hernandez  <aldyh@redhat.com>

	* doc/invoke.texi: Remove max-fsm-thread-length,
	max-fsm-thread-paths, and fsm-maximum-phi-arguments.
	* params.opt: Same.
	* tree-ssa-threadbackward.c (back_threader::back_threader): Remove
	argument.
	(back_threader_registry::back_threader_registry): Same.
	(back_threader_profitability::profitable_path_p): Remove
	param_max_fsm_thread-length.
	(back_threader_registry::register_path): Remove
	m_max_allowable_paths.

2021-10-14  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (class back_threader): Make m_imports
	an auto_bitmap.
	(back_threader::~back_threader): Do not release m_path.

2021-10-14  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/102738
	* vr-values.c (simplify_using_ranges::simplify): Handle RSHIFT_EXPR.

2021-10-14  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* omp-general.c (omp_check_context_selector):  Move from c-omp.c.
	(omp_mark_declare_variant): Move from c-omp.c.
	(omp_context_name_list_prop): Update for Fortran strings.
	* omp-general.h (omp_check_context_selector): New prototype.
	(omp_mark_declare_variant): New prototype.

2021-10-14  Richard Sandiford  <richard.sandiford@arm.com>

	* config/rs6000/rs6000.c (rs6000_density_test): Move early
	exit test further up the function.

2021-10-14  Richard Sandiford  <richard.sandiford@arm.com>

	* config/arm/arm.c (arm_add_stmt_cost): Delete.
	(TARGET_VECTORIZE_ADD_STMT_COST): Delete.

2021-10-14  Martin Jambor  <mjambor@suse.cz>

	* doc/invoke.texi (Optimize Options): Add entry for
	ipa-cp-recursive-freq-factor.

2021-10-14  Tamar Christina  <tamar.christina@arm.com>

	* match.pd: New rule.

2021-10-14  Jan Hubicka  <hubicka@ucw.cz>

	PR ipa/102557
	* ipa-modref-tree.h (modref_access_node::update2):
	Also check that parm_offset is unchanged.
	(modref_ref_node::insert_access): Fix updating of
	parameter.

2021-10-14  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (back_threader::resolve_phi): Add
	FIXME note.

2021-10-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102659
	* tree-if-conv.c (if_convertible_gimple_assign_stmt_p): Also
	rewrite pointer typed undefined overflow operations.
	(predicate_statements): Likewise.  Make sure to emit invariant
	conversions in the preheader.
	* tree-vectorizer.c (vect_loop_vectorized_call): Look through
	non-empty preheaders.
	* tree-data-ref.c (dr_analyze_indices): Strip useless
	conversions to the MEM_REF base type.

2021-10-14  Martin Liska  <mliska@suse.cz>

	* common.opt: Stop using AUTODETECT_VALUE
	and use EnabledBy where possible.
	* opts.c: Enable OPT_fvar_tracking with optimize >= 1.
	* toplev.c (AUTODETECT_VALUE): Remove macro.
	(process_options): Simplify by using EnabledBy and
	OPT_fvar_tracking.  Use OPTION_SET_P macro instead of
	AUTODETECT_VALUE.

2021-10-14  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vld1_s8_x3): Use signed type for
	pointer parameter.
	(vld1_s32_x3): Likewise.

2021-10-14  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/102736
	PR tree-optimization/102736
	* gimple-range-path.cc (path_range_query::range_on_path_entry):
	Assert that the requested range is defined outside the path.
	(path_range_query::ssa_range_in_phi): Do not call
	range_on_path_entry for SSA names that are defined within the
	path.

2021-10-14  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin-driver.c (darwin_find_version_from_kernel):
	Quote internal identifiers and avoid contractions in
	warnings.
	(darwin_default_min_version): Likewise.
	(darwin_driver_init): Likewise.

2021-10-14  Martin Jambor  <mjambor@suse.cz>

	* params.opt (ipa-cp-recursive-freq-factor): New.
	* ipa-cp.c (ipcp_value): Switch to inline initialization.  New members
	scc_no, self_recursion_generated_level, same_scc and
	self_recursion_generated_p.
	(ipcp_lattice::add_value): Replaced parameter unlimited with
	same_lat_gen_level, usit it determine limit of values and store it to
	the value.
	(ipcp_lattice<valtype>::print): Dump the new fileds.
	(allocate_and_init_ipcp_value): Take same_lat_gen_level as a new
	parameter and store it to the new value.
	(self_recursively_generated_p): Removed.
	(propagate_vals_across_arith_jfunc): Use self_recursion_generated_p
	instead of self_recursively_generated_p, store self generation level
	to such values.
	(value_topo_info<valtype>::add_val): Set scc_no.
	(value_topo_info<valtype>::propagate_effects): Multiply frequencies of
	recursively feeding values and self generated values by appropriate
	new factors.

2021-10-14  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (aarch64_add_stmt_cost): Remove
	redundant test for flag_vect_cost_model.

2021-10-14  Aldy Hernandez  <aldyh@redhat.com>

	* bitmap.c (debug): New overloaded function for auto_bitmaps.
	* bitmap.h (debug): Same.

2021-10-14  Hongyu Wang  <hongyu.wang@intel.com>

	* config/i386/avx512fp16intrin.h (_mm512_mask_fcmadd_pch):
	Adjust builtin call.
	(_mm512_mask3_fcmadd_pch): Likewise.
	(_mm512_mask_fmadd_pch): Likewise
	(_mm512_mask3_fmadd_pch): Likewise
	(_mm512_mask_fcmadd_round_pch): Likewise
	(_mm512_mask3_fcmadd_round_pch): Likewise
	(_mm512_mask_fmadd_round_pch): Likewise
	(_mm512_mask3_fmadd_round_pch): Likewise
	(_mm_mask_fcmadd_sch): Likewise
	(_mm_mask3_fcmadd_sch): Likewise
	(_mm_mask_fmadd_sch): Likewise
	(_mm_mask3_fmadd_sch): Likewise
	(_mm_mask_fcmadd_round_sch): Likewise
	(_mm_mask3_fcmadd_round_sch): Likewise
	(_mm_mask_fmadd_round_sch): Likewise
	(_mm_mask3_fmadd_round_sch): Likewise
	(_mm_fcmadd_round_sch): Likewise
	* config/i386/avx512fp16vlintrin.h (_mm_mask_fmadd_pch):
	Adjust builtin call.
	(_mm_mask3_fmadd_pch): Likewise
	(_mm256_mask_fmadd_pch): Likewise
	(_mm256_mask3_fmadd_pch): Likewise
	(_mm_mask_fcmadd_pch): Likewise
	(_mm_mask3_fcmadd_pch): Likewise
	(_mm256_mask_fcmadd_pch): Likewise
	(_mm256_mask3_fcmadd_pch): Likewise
	* config/i386/i386-builtin.def: Add mask3 builtin for complex
	fma, and adjust mask_builtin to corresponding expander.
	* config/i386/i386-expand.c (ix86_expand_round_builtin):
	Skip eraseing embedded rounding for expanders that emits
	multiple insns.
	* config/i386/sse.md (complexmove): New mode_attr.
	(<avx512>_fmaddc_<mode>_mask1<round_expand_name>): New expander.
	(<avx512>_fcmaddc_<mode>_mask1<round_expand_name>): Likewise.
	(avx512fp16_fmaddcsh_v8hf_mask1<round_expand_name>): Likewise.
	(avx512fp16_fcmaddcsh_v8hf_mask1<round_expand_name>): Likewise.
	(avx512fp16_fcmaddcsh_v8hf_mask3<round_expand_name>): Likewise.
	(avx512fp16_fmaddcsh_v8hf_mask3<round_expand_name>): Likewise.
	* config/i386/subst.md (round_embedded_complex): New subst.

2021-10-14  John David Anglin  <danglin@gcc.gnu.org>

	* config/pa/pa.md (cbranchsf4): Disable if TARGET_SOFT_FLOAT.
	(cbranchdf4): Likewise.
	Add missing move patterns for TARGET_SOFT_FLOAT.

2021-10-13  Roger Sayle  <roger@nextmovesoftware.com>

	* config/i386/i386-expand.c (ix86_expand_vector_move):  Use a
	pseudo intermediate when moving a SUBREG into a hard register,
	by checking ix86_hardreg_mov_ok.
	(ix86_expand_vector_extract): Store zero-extended SImode
	intermediate in a pseudo, then set target using a SUBREG_PROMOTED
	annotated subreg.
	* config/i386/sse.md (mov<VMOVE>_internal): Prevent CSE creating
	complex (SUBREG) sets of (vector) hard registers before reload, by
	checking ix86_hardreg_mov_ok.

2021-10-13  Indu Bhagat  <indu.bhagat@oracle.com>

	* ctfc.h (enum ctf_dtu_d_union_enum): Remove redundant comma.

2021-10-13  Indu Bhagat  <indu.bhagat@oracle.com>

	* dwarf2ctf.c (gen_ctf_array_type): Fix typo in comment.

2021-10-13  Martin Sebor  <msebor@redhat.com>

	PR middle-end/102630
	* pointer-query.cc (compute_objsize_r): Handle named address spaces.

2021-10-13  Iain Sandoe  <iain@sandoe.co.uk>

	* collect2.c (is_lto_object_file): Release simple-object
	resources, close files.

2021-10-13  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/arm/arm.c (thumb2_legitimate_address_p): Use VALID_MVE_MODE
	when checking mve addressing modes.
	(mve_vector_mem_operand): Fix the way we handle pre, post and offset
	addressing modes.
	(arm_print_operand): Fix printing of POST_ and PRE_MODIFY.
	* config/arm/mve.md: Use mve_memory_operand predicate everywhere where
	there is a single Ux constraint.

2021-10-13  John David Anglin  <danglin@gcc.gnu.org>

	* config/pa/pa.md (muldi3): Add support for inlining 64-bit
	multiplication on 32-bit PA 1.1 and 2.0 targets.

2021-10-13  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/90364
	* coverage.c (build_info): Emit checksum to the global variable.
	(build_info_type): Add new field for checksum.
	(coverage_obj_finish): Pass object_checksum.
	(coverage_init): Use 0 as checksum for .gcno files.
	* gcov-dump.c (dump_gcov_file): Dump also new checksum field.
	* gcov.c (read_graph_file): Read also checksum.
	* doc/invoke.texi: Document the behaviour change.

2021-10-13  Richard Biener  <rguenther@suse.de>

	* gimple-iterator.h (gsi_iterator_update): Add GSI_LAST_NEW_STMT,
	start at integer value 2.
	* gimple-iterator.c (gsi_insert_seq_nodes_before): Update
	the iterator for GSI_LAST_NEW_STMT.
	(gsi_insert_seq_nodes_after): Likewise.
	* tree-if-conv.c (predicate_statements): Use GSI_LAST_NEW_STMT.
	* tree-ssa.c (execute_update_addresses_taken): Correct bogus
	arguments to gsi_replace.

2021-10-13  Martin Liska  <mliska@suse.cz>

	PR target/102688
	* common.opt: Use EnabledBy instead of detection in
	finish_options and process_options.
	* opts.c (finish_options): Remove handling of
	x_flag_unroll_all_loops.
	* toplev.c (process_options): Likewise for flag_web and
	flag_rename_registers.

2021-10-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102659
	* tree-if-conv.c (need_to_rewrite_undefined): New flag.
	(if_convertible_gimple_assign_stmt_p): Mark the loop for
	rewrite when stmts with undefined behavior on integer
	overflow appear.
	(combine_blocks): Predicate also when we need to rewrite stmts.
	(predicate_statements): Rewrite affected stmts to something
	with well-defined behavior on overflow.
	(tree_if_conversion): Initialize need_to_rewrite_undefined.

2021-10-13  Richard Biener  <rguenther@suse.de>

	PR ipa/102714
	* ipa-sra.c (ptr_parm_has_nonarg_uses): Fix volatileness
	check.

2021-10-13  Jose E. Marchesi  <jose.marchesi@oracle.com>

	* dwarf2ctf.c: Fix typo in comment.

2021-10-12  Bill Schmidt  <wschmidt@linux.ibm.com>

	PR target/101985
	* config/rs6000/altivec.h (vec_cpsgn): Swap operand order.
	* config/rs6000/rs6000-overload.def (VEC_COPYSIGN): Use SKIP to
	avoid generating an automatic #define of vec_cpsgn.  Use the
	correct built-in for V4SFmode that doesn't depend on VSX.

2021-10-12  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/85730
	PR target/82524
	* config/i386/i386.md (*add<mode>_1_slp): Rewrite as
	define_insn_and_split pattern.  Add alternative 1 and split it
	post reload to insert operand 1 into the low part of operand 0.
	(*sub<mode>_1_slp): Ditto.
	(*and<mode>_1_slp): Ditto.
	(*<any_or:code><mode>_1_slp): Ditto.
	(*ashl<mode>3_1_slp): Ditto.
	(*<any_shiftrt:insn><mode>3_1_slp): Ditto.
	(*<any_rotate:insn><mode>3_1_slp): Ditto.
	(*neg<mode>_1_slp): New insn_and_split pattern.
	(*one_cmpl<mode>_1_slp): Ditto.

2021-10-12  David Edelsohn  <dje.gcc@gmail.com>

	* doc/install.texi: Update MinGW and mingw-64 Binaries
	download links.

2021-10-12  Daniel Le Duc Khoi Nguyen  <greenrecyclebin@gmail.com>

	* doc/extend.texi (Common Variable Attributes): Fix typos in
	alloc_size documentation.

2021-10-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102696
	* tree-vect-slp.c (vect_build_slp_tree_2): Properly mark
	the tree fatally failed when we reject a BIT_FIELD_REF.

2021-10-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102572
	* tree-vect-stmts.c (vect_build_gather_load_calls): When
	gathering the vectorized defs for the mask pass in the
	desired mask vector type so invariants will be handled
	correctly.

2021-10-12  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-sve.md (*fcm<cmp_op><mode>_bic_combine,
	*fcm<cmp_op><mode>_nor_combine, *fcmuo<mode>_bic_combine,
	*fcmuo<mode>_nor_combine): New.

2021-10-12  Eric Botcazou  <ebotcazou@adacore.com>

	PR target/102588
	* config/sparc/sparc-modes.def (OI): New integer mode.

2021-10-12  Jakub Jelinek  <jakub@redhat.com>

	* gimple-fold.h (clear_padding_type_may_have_padding_p): Declare.
	* gimple-fold.c (clear_padding_type_may_have_padding_p): No longer
	static.

2021-10-12  Jakub Jelinek  <jakub@redhat.com>

	* tree-vectorizer.h (loop_cost_model): New function.
	(unlimited_cost_model): Use it.
	* tree-vect-loop.c (vect_analyze_loop_costing): Use loop_cost_model
	call instead of flag_vect_cost_model.
	* tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise.
	(vect_prune_runtime_alias_test_list): Likewise.  Also use it instead
	of flag_simd_cost_model.

2021-10-12  liuhongt  <hongtao.liu@intel.com>

	PR target/102483
	* config/i386/i386-expand.c (emit_reduc_half): Handle
	V4QImode.
	* config/i386/mmx.md (reduc_<code>_scal_v4qi): New expander.
	(reduc_plus_scal_v4qi): Ditto.

2021-10-12  Paul A. Clarke  <pc@us.ibm.com>

	* config/rs6000/smmintrin.h (_mm_cmpeq_epi64, _mm_cmpgt_epi64,
	_mm_mullo_epi32, _mm_mul_epi32, _mm_packus_epi32): New.
	* config/rs6000/nmmintrin.h: Copy from i386, tweak to suit.

2021-10-12  Paul A. Clarke  <pc@us.ibm.com>

	* config/rs6000/smmintrin.h (_mm_cvtepi8_epi16, _mm_cvtepi8_epi32,
	_mm_cvtepi8_epi64, _mm_cvtepi16_epi32, _mm_cvtepi16_epi64,
	_mm_cvtepi32_epi64, _mm_cvtepu8_epi16, _mm_cvtepu8_epi32,
	_mm_cvtepu8_epi64, _mm_cvtepu16_epi32, _mm_cvtepu16_epi64,
	_mm_cvtepu32_epi64): New.

2021-10-12  Paul A. Clarke  <pc@us.ibm.com>

	* config/rs6000/smmintrin.h (_mm_test_all_zeros,
	_mm_test_all_ones, _mm_test_mix_ones_zeros): Rewrite as macro.

2021-10-12  Paul A. Clarke  <pc@us.ibm.com>

	* config/rs6000/smmintrin.h (_mm_min_epi8, _mm_min_epu16,
	_mm_min_epi32, _mm_min_epu32, _mm_max_epi8, _mm_max_epu16,
	_mm_max_epi32, _mm_max_epu32): New.

2021-10-11  Jan Hubicka  <hubicka@ucw.cz>

	* ipa-modref-tree.h (struct modref_access_node): Revert
	accidental change.
	(struct modref_ref_node): Likewise.

2021-10-11  Jan Hubicka  <hubicka@ucw.cz>

	* ipa-modref-tree.h (modref_tree::global_access_p): New member
	function.
	* ipa-modref.c:
	(implicint_const_eaf_flags,implicit_pure_eaf_flags,
	ignore_stores_eaf_flags): Move to ipa-modref.h
	(remove_useless_eaf_flags): Remove early exit on NOCLOBBER.
	(modref_summary::global_memory_read_p): New member function.
	(modref_summary::global_memory_written_p): New member function.
	* ipa-modref.h (modref_summary::global_memory_read_p,
	modref_summary::global_memory_written_p): Declare.
	(implicint_const_eaf_flags,implicit_pure_eaf_flags,
	ignore_stores_eaf_flags): move here.
	* tree-ssa-structalias.c: Include ipa-modref-tree.h, ipa-modref.h
	and attr-fnspec.h.
	(handle_rhs_call): Rewrite.
	(handle_call_arg): New function.
	(determine_global_memory_access): New function.
	(handle_const_call): Remove
	(handle_pure_call): Remove
	(find_func_aliases_for_call): Update use of handle_rhs_call.
	(compute_points_to_sets): Handle global memory acccesses
	selectively

2021-10-11  Diane Meirowitz  <diane.meirowitz@oracle.com>

	* doc/invoke.texi: Add link to UndefinedBehaviorSanitizer
	documentation, mention UBSAN_OPTIONS, similar to what is done
	for AddressSanitizer.

2021-10-11  Richard Biener  <rguenther@suse.de>

	PR middle-end/102683
	* internal-fn.c (expand_DEFERRED_INIT): Check for mode
	availability before building an integer type for storage
	purposes.

2021-10-11  Richard Biener  <rguenther@suse.de>

	PR middle-end/101480
	* gimple.c (gimple_call_fnspec): Do not mark operator new/delete
	as const.

2021-10-11  Martin Liska  <mliska@suse.cz>

	* common.opt: Remove Init(2) for some options.
	* toplev.c (process_options): Do not use AUTODETECT_VALUE, but
	use rather OPTION_SET_P.

2021-10-11  Martin Liska  <mliska@suse.cz>

	* common.opt: Remove usage of IRA_REGION_AUTODETECT.
	* flag-types.h (enum ira_region): Likewise.
	* toplev.c (process_options): Use OPTION_SET_P instead of
	IRA_REGION_AUTODETECT.

2021-10-11  Jakub Jelinek  <jakub@redhat.com>

	* omp-low.c (omp_runtime_api_call): Handle omp_get_max_teams,
	omp_[sg]et_teams_thread_limit and omp_set_num_teams.

2021-10-11  Stefan Schulze Frielinghaus  <stefansf@linux.ibm.com>

	* config/s390/s390-protos.h (s390_rawmemchr): Add prototype.
	* config/s390/s390.c (s390_rawmemchr): New function.
	* config/s390/s390.md (rawmemchr<SINT:mode>): New expander.
	* config/s390/vector.md (@vec_vfees<mode>): Basically a copy of
	the pattern vfees<mode> from vx-builtins.md.
	* config/s390/vx-builtins.md (*vfees<mode>): Remove.

2021-10-11  Stefan Schulze Frielinghaus  <stefansf@linux.ibm.com>

	* builtins.c (get_memory_rtx): Change to external linkage.
	* builtins.h (get_memory_rtx): Add function prototype.
	* doc/md.texi (rawmemchr<mode>): Document.
	* internal-fn.c (expand_RAWMEMCHR): Define.
	* internal-fn.def (RAWMEMCHR): Add.
	* optabs.def (rawmemchr_optab): Add.
	* tree-loop-distribution.c (find_single_drs): Change return code
	behaviour by also returning true if no single store was found
	but a single load.
	(loop_distribution::classify_partition): Respect the new return
	code behaviour of function find_single_drs.
	(loop_distribution::execute): Call new function
	transform_reduction_loop in order to replace rawmemchr or strlen
	like loops by calls into builtins.
	(generate_reduction_builtin_1): New function.
	(generate_rawmemchr_builtin): New function.
	(generate_strlen_builtin_1): New function.
	(generate_strlen_builtin): New function.
	(generate_strlen_builtin_using_rawmemchr): New function.
	(reduction_var_overflows_first): New function.
	(determine_reduction_stmt_1): New function.
	(determine_reduction_stmt): New function.
	(loop_distribution::transform_reduction_loop): New function.

2021-10-11  Martin Liska  <mliska@suse.cz>

	* tree.c (cl_option_hasher::hash): Use cl_optimization_hash
	and remove legacy hashing code.

2021-10-11  Kito Cheng  <kito.cheng@sifive.com>

	PR target/100316
	* builtins.c (maybe_emit_call_builtin___clear_cache): Allow
	CONST_INT for BEGIN and END, and use gcc_assert rather than
	error.

2021-10-10  Jakub Jelinek  <jakub@redhat.com>

	PR debug/102441
	* var-tracking.c (add_stores): For cselib_sp_derived_value_p values
	use MO_VAL_SET if loc is not sp.

2021-10-10  Andrew Pinski  <apinski@marvell.com>

	PR tree-optimization/102622
	* match.pd: Swap the order of a?pow2cst:0 and a?-1:0 transformations.
	Swap the order of a?0:pow2cst and a?0:-1 transformations.

2021-10-09  liuhongt  <hongtao.liu@intel.com>

	PR target/102639
	* config/i386/i386-expand.c (ix86_valid_mask_cmp_mode): Handle
	HFmode.
	(ix86_use_mask_cmp_p): Ditto.
	(ix86_expand_sse_movcc): Ditto.
	* config/i386/i386.md (setcc_hf_mask): New define_insn.
	(movhf_mask): Ditto.
	(UNSPEC_MOVCC_MASK): New unspec.
	* config/i386/sse.md (UNSPEC_PCMP): Move to i386.md.

2021-10-08  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/102627
	* lra-constraints.c (split_reg): Use at least natural mode of hard reg.

2021-10-08  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-cache.cc (non_null_ref::non_null_deref_p): Grow
	bitmap if needed.

2021-10-08  Aldy Hernandez  <aldyh@redhat.com>

	* value-range.cc (irange::debug): New.
	* value-range.h (irange::debug): New.

2021-10-08  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/102385
	* predict.h (change_edge_frequency): Declare.
	* predict.c (change_edge_frequency): New function.
	* tree-ssa-loop-manip.h (tree_transform_and_unroll_loop): Remove
	edge argument.
	(tree_unroll_loop): Likewise.
	* gimple-loop-jam.c (tree_loop_unroll_and_jam): Update accordingly.
	* tree-predcom.c (pcom_worker::tree_predictive_commoning_loop):
	Likewise.
	* tree-ssa-loop-prefetch.c (loop_prefetch_arrays): Likewise.
	* tree-ssa-loop-manip.c (tree_unroll_loop): Likewise.
	(tree_transform_and_unroll_loop): Likewise.  Use single_dom_exit
	to retrieve the exit edges.  Make all the old profile update code
	conditional on !single_loop_p -- the case it was written for --
	and use a different approach for the single-loop case.

2021-10-08  Martin Liska  <mliska@suse.cz>

	* config/alpha/alpha.c (alpha_option_override): Use new macro
	OPTION_SET_P.
	* config/arc/arc.c (arc_override_options): Likewise.
	* config/arm/arm.c (arm_option_override): Likewise.
	* config/bfin/bfin.c (bfin_load_pic_reg): Likewise.
	* config/c6x/c6x.c (c6x_option_override): Likewise.
	* config/csky/csky.c: Likewise.
	* config/darwin.c (darwin_override_options): Likewise.
	* config/frv/frv.c (frv_option_override): Likewise.
	* config/i386/djgpp.h: Likewise.
	* config/i386/i386.c (ix86_stack_protect_guard): Likewise.
	(ix86_max_noce_ifcvt_seq_cost): Likewise.
	* config/ia64/ia64.c (ia64_option_override): Likewise.
	(ia64_override_options_after_change): Likewise.
	* config/m32c/m32c.c (m32c_option_override): Likewise.
	* config/m32r/m32r.c (m32r_init): Likewise.
	* config/m68k/m68k.c (m68k_option_override): Likewise.
	* config/microblaze/microblaze.c (microblaze_option_override): Likewise.
	* config/mips/mips.c (mips_option_override): Likewise.
	* config/nios2/nios2.c (nios2_option_override): Likewise.
	* config/nvptx/nvptx.c (nvptx_option_override): Likewise.
	* config/pa/pa.c (pa_option_override): Likewise.
	* config/riscv/riscv.c (riscv_option_override): Likewise.
	* config/rs6000/aix71.h: Likewise.
	* config/rs6000/aix72.h: Likewise.
	* config/rs6000/aix73.h: Likewise.
	* config/rs6000/rs6000.c (darwin_rs6000_override_options): Likewise.
	(rs6000_override_options_after_change): Likewise.
	(rs6000_linux64_override_options): Likewise.
	(glibc_supports_ieee_128bit): Likewise.
	(rs6000_option_override_internal): Likewise.
	(rs6000_file_start): Likewise.
	(rs6000_darwin_file_start): Likewise.
	* config/rs6000/rtems.h: Likewise.
	* config/rs6000/sysv4.h: Likewise.
	* config/rs6000/vxworks.h (SUB3TARGET_OVERRIDE_OPTIONS): Likewise.
	* config/s390/s390.c (s390_option_override): Likewise.
	* config/sh/linux.h: Likewise.
	* config/sh/netbsd-elf.h (while): Likewise.
	* config/sh/sh.c (sh_option_override): Likewise.
	* config/sol2.c (solaris_override_options): Likewise.
	* config/sparc/sparc.c (sparc_option_override): Likewise.
	* config/tilegx/tilegx.c (tilegx_option_override): Likewise.
	* config/visium/visium.c (visium_option_override): Likewise.
	* config/vxworks.c (vxworks_override_options): Likewise.
	* lto-opts.c (lto_write_options): Likewise.
	* omp-expand.c (expand_omp_simd): Likewise.
	* omp-general.c (omp_max_vf): Likewise.
	* omp-offload.c (oacc_xform_loop): Likewise.
	* opts.h (OPTION_SET_P): Likewise.
	* targhooks.c (default_max_noce_ifcvt_seq_cost): Likewise.
	* toplev.c (process_options): Likewise.
	* tree-predcom.c: Likewise.
	* tree-sra.c (analyze_all_variable_accesses): Likewise.

2021-10-08  liuhongt  <hongtao.liu@intel.com>

	PR target/102464
	* config/i386/i386.c (ix86_optab_supported_p):
	Return true for HFmode.
	* match.pd: Simplify (_Float16) ceil ((double) x) to
	__builtin_ceilf16 (a) when a is _Float16 type and
	direct_internal_fn_supported_p.

2021-10-08  liuhongt  <hongtao.liu@intel.com>

	PR target/102494
	* config/i386/i386-expand.c (emit_reduc_half): Hanlde V4HImode.
	* config/i386/mmx.md (reduc_plus_scal_v4hi): New.
	(reduc_<code>_scal_v4hi): New.

2021-10-08  liuhongt  <hongtao.liu@intel.com>

	* common.opt (ftree-vectorize): Add Var(flag_tree_vectorize).
	* doc/invoke.texi (Options That Control Optimization): Update
	documents.
	* opts.c (default_options_table): Enable auto-vectorization at
	O2 with very-cheap cost model.
	(finish_options): Use cheap cost model for
	explicit -ftree{,-loop}-vectorize.

2021-10-07  Indu Bhagat  <indu.bhagat@oracle.com>

	* ctfc.c (ctfc_delete_container): Free hash table contents.

2021-10-07  Indu Bhagat  <indu.bhagat@oracle.com>

	* toplev.c (process_options): Do not warn for GNU GIMPLE.

2021-10-07  Siddhesh Poyarekar  <siddhesh@gotplt.org>

	* tree-object-size.c (addr_object_size,
	compute_builtin_object_size): Drop PDECL and POFF arguments.
	(addr_object_size): Adjust calls.
	* tree-object-size.h (compute_builtin_object_size): Drop PDECL
	and POFF arguments.

2021-10-07  Roger Sayle  <roger@nextmovesoftware.com>

	* rtl.def (SMUL_HIGHPART, UMUL_HIGHPART): New RTX codes for
	representing signed and unsigned high-part multiplication resp.
	* simplify-rtx.c (simplify_binary_operation_1) [SMUL_HIGHPART,
	UMUL_HIGHPART]: Simplify high-part multiplications by zero.
	[SS_PLUS, US_PLUS, SS_MINUS, US_MINUS, SS_MULT, US_MULT,
	SS_DIV, US_DIV]: Similar simplifications for saturating
	arithmetic.
	(simplify_const_binary_operation) [SS_PLUS, US_PLUS, SS_MINUS,
	US_MINUS, SS_MULT, US_MULT, SMUL_HIGHPART, UMUL_HIGHPART]:
	Implement compile-time evaluation for constant operands.
	* dwarf2out.c (mem_loc_descriptor): Skip SMUL_HIGHPART and
	UMUL_HIGHPART.
	* doc/rtl.texi (smul_highpart, umul_highpart): Document RTX codes.
	* doc/md.texi (smul@var{m}3_highpart, umul@var{m3}_highpart):
	Mention the new smul_highpart and umul_highpart RTX codes.
	* doc/invoke.texi: Silence @xref "compilation" warnings.

2021-10-07  Martin Jambor  <mjambor@suse.cz>

	PR ipa/102388
	* ipa-prop.c (ipa_edge_args_sum_t::duplicate): Also handle the
	case when the source reference description corresponds to a
	referance taken in a function src->caller is inlined to.

2021-10-07  Jan Hubicka  <hubicka@ucw.cz>

	PR ipa/102581
	* ipa-modref-tree.h (modref_access_node::contains_p): Handle offsets
	better.
	(modref_access_node::try_merge_with): Add sanity check that there
	are no redundant entries in the list.

2021-10-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102608
	* tree-ssa-sccvn.c (visit_stmt): Drop .DEFERRED_INIT to
	varying.

2021-10-07  Martin Liska  <mliska@suse.cz>

	* toplev.c (toplev::main): Make
	save_opt_decoded_options a pointer type
	* toplev.h: Likewise.

2021-10-07  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn-valu.md (gather<mode>_insn_2offsets<exec>): Apply
	HAVE_GCN_ASM_GLOBAL_LOAD_FIXED.
	(scatter<mode>_insn_2offsets<exec_scatter>): Likewise.

2021-10-07  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn-hsa.h (SRAMOPT): Include the whole option string.
	Adjust for new -msram-ecc=any behaviour.
	(ASM_SPEC): Adjust -mxnack and -msram-ecc usage.
	* config/gcn/gcn.c (output_file_start): Implement -msram-ecc=any.
	* config/gcn/mkoffload.c (EF_AMDGPU_XNACK): Rename to ...
	(EF_AMDGPU_XNACK_V3): ... this.
	(EF_AMDGPU_SRAM_ECC): Rename to ...
	(EF_AMDGPU_SRAM_ECC_V3): ... this.
	(EF_AMDGPU_FEATURE_XNACK_V4): New.
	(EF_AMDGPU_FEATURE_XNACK_UNSUPPORTED_V4): New.
	(EF_AMDGPU_FEATURE_XNACK_ANY_V4): New.
	(EF_AMDGPU_FEATURE_XNACK_OFF_V4): New.
	(EF_AMDGPU_FEATURE_XNACK_ON_V4): New.
	(EF_AMDGPU_FEATURE_SRAMECC_V4): New.
	(EF_AMDGPU_FEATURE_SRAMECC_UNSUPPORTED_V4): New.
	(EF_AMDGPU_FEATURE_SRAMECC_ANY_V4): New.
	(EF_AMDGPU_FEATURE_SRAMECC_OFF_V4): New.
	(EF_AMDGPU_FEATURE_SRAMECC_ON_V4): New.
	(SET_XNACK_ON): New.
	(SET_XNACK_OFF): New.
	(TEST_XNACK): New.
	(SET_SRAM_ECC_ON): New.
	(SET_SRAM_ECC_ANY): New.
	(SET_SRAM_ECC_OFF): New.
	(TEST_SRAM_ECC_ANY): New.
	(TEST_SRAM_ECC_ON): New.
	(main): Implement HSACOv4 and -msram-ecc=any.

2021-10-07  Andrew Stubbs  <ams@codesourcery.com>

	* config.in: Regenerate.
	* config/gcn/gcn-hsa.h (X_FIJI): New macro.
	(X_900): New macro.
	(X_906): New macro.
	(X_908): New macro.
	(A_FIJI): Rename to ...
	(S_FIJI): ... this.
	(A_900): Rename to ...
	(S_900): ... this.
	(A_906): Rename to ...
	(S_906): ... this.
	(A_908): Rename to ...
	(S_908): ... this.
	(SRAMOPT): New macro.
	(ASM_SPEC): Adjust xnack option usage.
	* config/gcn/gcn.c (output_file_start): Adjust amdgcn_target usage.
	* configure: Regenerate.
	* configure.ac: Detect LLVM assembler dialect.

2021-10-07  Richard Biener  <rguenther@suse.de>

	* tree-pretty-print.c (dump_generic_node): Do not elide
	printing '&' when dumping with -gimple.

2021-10-06  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (non_null_ref::adjust_range): Call new
	intersect routine.
	* gimple-range-fold.cc (adjust_pointer_diff_expr): Ditto.
	(adjust_imagpart_expr): Ditto.
	* value-range.cc (irange::irange_intersect): Call new routine if
	RHS is a single pair.
	(irange::intersect): New wide_int version.
	* value-range.h (class irange): New prototype.

2021-10-06  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-edge.cc (gimple_outgoing_range::gimple_outgoing_range):
	Add parameter to limit size when recognizing switches.
	(gimple_outgoing_range::edge_range_p): Check size limit.
	* gimple-range-edge.h (gimple_outgoing_range): Add size field.
	* gimple-range-gori.cc (gori_map::calculate_gori): Ignore switches
	that exceed the size limit.
	(gori_compute::gori_compute): Add initializer.
	* params.opt (evrp-switch-limit): New.
	* doc/invoke.texi: Update docs.

2021-10-06  Andrew MacLeod  <amacleod@redhat.com>

	* value-range.h (irange::set_varying): Use TYPE_MIN_VALUE and
	TYPE_MAX_VALUE instead of creating new trees when possible.

2021-10-06  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (non_null_ref::adjust_range): Check for
	zero and non-zero more efficently.

2021-10-06  Richard Biener  <rguenther@suse.de>

	PR c/102605
	* dumpfile.h (TDF_GIMPLE_VAL): New.
	(dump_flag): Re-order and adjust TDF_* flags.  Make
	the enum uint32_t.  Use std::underlying_type in the
	operator overloads.
	(optgroup_flag): Likewise for the operator overloads.
	* tree-pretty-print.c (dump_generic_node): Wrap ADDR_EXPR
	in _Literal if TDF_GIMPLE_VAL.
	* gimple-pretty-print.c (dump_gimple_assign): Add
	TDF_GIMPLE_VAL to flags when dumping operands where only
	is_gimple_val are allowed.
	(dump_gimple_cond): Likewise.

2021-10-06  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>

	* gimple-isel.cc (gimple_expand_vec_cond_expr): Remove redundant if
	condition.

2021-10-05  qing zhao  <qing.zhao@oracle.com>

	PR middle-end/102359
	* gimplify.c (gimplify_decl_expr): Not add initialization for an
	auto variable when it has been initialized by frontend.

2021-10-05  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadupdate.c (jt_path_registry::cancel_invalid_paths):
	Loosen restrictions

2021-10-05  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

	* common/config/avr/avr-common.c (avr_handle_option): Mark
	argument as ATTRIBUTE_UNUSED.

2021-10-05  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

	* config/lm32/uclinux-elf.h (LINK_GCC_C_SEQUENCE_SPEC):
	Undefine before redefinition.

2021-10-05  Richard Biener  <rguenther@suse.de>

	* toplev.c (no_backend): Remove global var.
	(process_options): Pass in no_backend, move post_options
	langhook call to toplev::main.
	(do_compile): Pass in no_backend, move process_options call
	to toplev::main.
	(toplev::run_self_tests): Check no_backend at the caller.
	(toplev::main): Call post_options and process_options
	split out from do_compile, do self-tests only if
	no_backend is initialized.

2021-10-05  Richard Biener  <rguenther@suse.de>

	* tree-cfg.c (dump_function_to_file): Dump the UID of the
	function as part of the name when requested.
	* tree-pretty-print.c (dump_function_name): Dump the UID when
	requested and the langhook produced the actual name.

2021-10-05  Richard Biener  <rguenther@suse.de>

	PR middle-end/102587
	PR middle-end/102285
	* internal-fn.c (expand_DEFERRED_INIT): Fall back to
	zero-initialization as last resort, use the constant
	size as given by the DEFERRED_INIT argument to build
	the initializer.

2021-10-04  Marek Polacek  <polacek@redhat.com>

	PR c++/97573
	* doc/invoke.texi: Document -Warray-compare.

2021-10-04  Richard Biener  <rguenther@suse.de>

	* gimplify.c (is_var_need_auto_init): DECL_HARD_REGISTER
	variables are not to be initialized.

2021-10-04  Richard Biener  <rguenther@suse.de>

	* expr.h (non_mem_decl_p): Declare.
	(mem_ref_refers_to_non_mem_p): Likewise.
	* expr.c (non_mem_decl_p): Export.
	(mem_ref_refers_to_non_mem_p): Likewise.
	* internal-fn.c (expand_DEFERRED_INIT): Do not expand the LHS
	but check the base with mem_ref_refers_to_non_mem_p
	and non_mem_decl_p.

2021-10-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102570
	* tree-ssa-sccvn.h (vn_reference_op_struct): Document
	we are using clique for the internal function code.
	* tree-ssa-sccvn.c (vn_reference_op_eq): Compare the
	internal function code.
	(print_vn_reference_ops): Print the internal function code.
	(vn_reference_op_compute_hash): Hash it.
	(copy_reference_ops_from_call): Record it.
	(visit_stmt): Remove the restriction around internal function
	calls.
	(fully_constant_vn_reference_p): Use fold_const_call and handle
	internal functions.
	(vn_reference_eq): Compare call return types.
	* tree-ssa-pre.c (create_expression_by_pieces): Handle
	generating calls to internal functions.
	(compute_avail): Remove the restriction around internal function
	calls.

2021-10-04  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/102560
	* gimple-ssa-warn-alloca.c (alloca_call_type): Remove static
	marker for invalid_range.

2021-10-04  Richard Biener  <rguenther@suse.de>

	PR middle-end/102587
	* internal-fn.c (expand_DEFERRED_INIT): Guard register
	initialization path an avoid initializing VLA registers
	with it.

2021-10-04  Eric Botcazou  <ebotcazou@adacore.com>

	* config/rs6000/vxworks.h (TARGET_INIT_LIBFUNCS): Delete.

2021-10-03  Martin Liska  <mliska@suse.cz>

	* toplev.c (toplev::main): Check opt_index if it is a part
	of cl_options.

2021-10-02  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/102563
	* range-op.cc (operator_lshift::op1_range): Do not clobber
	range.

2021-10-02  Martin Liska  <mliska@suse.cz>

	* toplev.c (toplev::main): save_decoded_options[0] is program
	name and so it should be skipped.

2021-10-01  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/102546
	* range-op.cc (operator_lshift::op1_range): Teach range-ops that
	X << Y is non-zero implies X is also non-zero.

2021-10-01  Przemyslaw Wirkus  <przemyslaw.wirkus@arm.com>

	* config/aarch64/aarch64-cores.def (AARCH64_CORE): New
	Cortex-X2 core.
	* config/aarch64/aarch64-tune.md: Regenerate.
	* doc/invoke.texi: Update docs.

2021-10-01  Przemyslaw Wirkus  <przemyslaw.wirkus@arm.com>

	* config/aarch64/aarch64-cores.def (AARCH64_CORE): New
	Cortex-A710 core.
	* config/aarch64/aarch64-tune.md: Regenerate.
	* doc/invoke.texi: Update docs.

2021-10-01  Przemyslaw Wirkus  <przemyslaw.wirkus@arm.com>

	* config/aarch64/aarch64-cores.def (AARCH64_CORE): New
	Cortex-A510 core.
	* config/aarch64/aarch64-tune.md: Regenerate.
	* doc/invoke.texi: Update docs.

2021-10-01  Martin Sebor  <msebor@redhat.com>

	PR c/102103
	* doc/invoke.texi (-Waddress): Update.
	* gengtype.c (write_types): Avoid -Waddress.
	* poly-int.h (POLY_SET_COEFF): Avoid using null.

2021-10-01  John David Anglin  <danglin@gcc.gnu.org>

	PR debug/102373
	* config/pa/pa.c (pa_option_override): Default to dwarf version 4
	on hppa64-hpux.

2021-10-01  Przemyslaw Wirkus  <przemyslaw.wirkus@arm.com>

	* config/aarch64/aarch64.h (AARCH64_FL_V9): Update value.

2021-10-01  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc (path_range_query::compute_ranges): Use
	get_path_oracle.
	* gimple-range-path.h (class path_range_query): Remove shadowed
	m_oracle field.
	(path_range_query::get_path_oracle): New.

2021-10-01  Jakub Jelinek  <jakub@redhat.com>
	    Richard Biener  <rguenther@suse.de>

	PR sanitizer/102515
	* doc/invoke.texi (-fsanitize=integer-divide-by-zero): Remove
	INT_MIN / -1 division detection from here ...
	(-fsanitize=signed-integer-overflow): ... and add it here.

2021-10-01  Przemyslaw Wirkus  <przemyslaw.wirkus@arm.com>

	* config/aarch64/aarch64-arches.def (AARCH64_ARCH): Added
	armv9-a.
	* config/aarch64/aarch64.h (AARCH64_FL_V9): New.
	(AARCH64_FL_FOR_ARCH9): New flags for Armv9-A.
	(AARCH64_ISA_V9): New ISA flag.
	* doc/invoke.texi: Update docs.

2021-10-01  Martin Liska  <mliska@suse.cz>

	* toplev.c (toplev::main): Save decoded optimization options.
	* toplev.h (save_opt_decoded_options): New.
	* doc/extend.texi: Be more clear about optimize and target
	attributes.

2021-10-01  Eric Botcazou  <ebotcazou@adacore.com>

	* explow.c: Include langhooks.h.
	(set_stack_check_libfunc): Build a proper function type.

2021-10-01  Eric Botcazou  <ebotcazou@adacore.com>

	PR c++/64697
	* config/i386/i386.c (legitimate_pic_address_disp_p): For PE-COFF do
	not return true for external weak function symbols in medium model.

2021-10-01  Jakub Jelinek  <jakub@redhat.com>

	* tree.h (OMP_CLAUSE_ORDER_REPRODUCIBLE): Define.
	* tree-pretty-print.c (dump_omp_clause) <case OMP_CLAUSE_ORDER>: Print
	reproducible: for OMP_CLAUSE_ORDER_REPRODUCIBLE.
	* omp-general.c (omp_extract_for_data): If OMP_CLAUSE_ORDER is seen
	without OMP_CLAUSE_ORDER_UNCONSTRAINED, overwrite sched_kind to
	OMP_CLAUSE_SCHEDULE_STATIC.

2021-10-01  Richard Biener  <rguenther@suse.de>

	PR middle-end/102518
	* tree-inline.c (setup_one_parameter): Avoid substituting
	an invariant into contexts where a GIMPLE register is not valid.

2021-09-30  Przemyslaw Wirkus  <przemyslaw.wirkus@arm.com>

	* config/arm/arm-cpus.in: Add Cortex-R52+ CPU.
	* config/arm/arm-tables.opt: Regenerate.
	* config/arm/arm-tune.md: Regenerate.
	* doc/invoke.texi: Update docs.

2021-09-30  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/89954
	* config/i386/i386.md
	(sign_extend:WIDE (any_logic:NARROW (memory, immediate)) splitters):
	New splitters.

2021-09-30  Tobias Burnus  <tobias@codesourcery.com>

	* omp-low.c (omp_runtime_api_call): Add omp_aligned_{,c}alloc and
	omp_{c,re}alloc, fix omp_alloc/omp_free.

2021-09-30  Martin Liska  <mliska@suse.cz>

	* defaults.h (ASM_OUTPUT_ASCII): Do not hide global variable
	asm_out_file and stream directly to MYFILE.

2021-09-30  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_update_misalignment_for_peel):
	Restore and fix condition under which we apply npeel to
	the DRs misalignment value.

2021-09-30  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_update_misalignment_for_peel):
	Fix npeel check for variable amount of peeling.

2021-09-30  Aldy Hernandez  <aldyh@redhat.com>

	* lto-wrapper.c (run_gcc): Plug snprintf overflow.

2021-09-30  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range.cc (gimple_ranger::debug): New.
	* gimple-range.h (class gimple_ranger): Add debug.

2021-09-30  Aldy Hernandez  <aldyh@redhat.com>

	PR middle-end/102519
	* tree-vrp.c (hybrid_threader::~hybrid_threader): Free m_query.

2021-09-29  Indu Bhagat  <indu.bhagat@oracle.com>

	PR debug/102507
	* btfout.c (GTY): Add GTY (()) albeit for cosmetic only purpose.
	(btf_finalize): Empty the hash_map btf_var_ids.

2021-09-29  Aldy Hernandez  <aldyh@redhat.com>

	* tree-vrp.c (thread_through_all_blocks): Return bool.
	(execute_vrp_threader): Return TODO_* flags.
	(pass_data_vrp_threader): Set todo_flags_finish to 0.

2021-09-29  Aldy Hernandez  <aldyh@redhat.com>

	* timevar.def (TV_TREE_VRP_THREADER): New.
	* tree-vrp.c: Use TV_TREE_VRP_THREADER for VRP threader pass.

2021-09-29  David Faust  <david.faust@oracle.com>

	* config.gcc (bpf-*-*): Do not overwrite extra_headers.

2021-09-29  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-builtins.c (TYPES_BINOP_PPU): Define
	new type qualifier enum.
	(TYPES_TERNOP_SSSU): Likewise.
	(TYPES_TERNOP_PPPU): Likewise.
	* config/aarch64/aarch64-simd-builtins.def: Define PPU, SSU,
	PPPU and SSSU builtin generator macros for qtbl1 and qtbx1
	Neon builtins.
	* config/aarch64/arm_neon.h (vqtbl1_p8): Use type-qualified
	builtin and remove casts.
	(vqtbl1_s8): Likewise.
	(vqtbl1q_p8): Likewise.
	(vqtbl1q_s8): Likewise.
	(vqtbx1_s8): Likewise.
	(vqtbx1_p8): Likewise.
	(vqtbx1q_s8): Likewise.
	(vqtbx1q_p8): Likewise.
	(vtbl1_p8): Likewise.
	(vtbl2_p8): Likewise.
	(vtbx2_p8): Likewise.

2021-09-29  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_dr_misalign_for_aligned_access):
	New helper.
	(vect_update_misalignment_for_peel): Use it to update
	misaligned to the value necessary for an aligned access.
	(vect_get_peeling_costs_all_drs): Likewise.
	(vect_enhance_data_refs_alignment): Likewise.

2021-09-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64.c (aarch64_expand_cpymem): Count number of
	emitted operations and adjust heuristic for code size.

2021-09-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64.c (aarch64_expand_setmem): Count number of
	emitted operations and adjust heuristic for code size.

2021-09-29  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/102504
	* gimplify.c (gimplify_scan_omp_clauses): Use omp_check_private even
	in OMP_SCOPE clauses, not just on worksharing construct clauses.

2021-09-28  Geng Qi  <gengqi@linux.alibaba.com>

	* config/riscv/riscv.md	(mulv<mode>4): Call gen_smul<mode>3_highpart.
	(<u>mulditi3): Call <su>muldi3_highpart.
	(<u>muldi3_highpart): Rename to <su>muldi3_highpart.
	(<u>mulsidi3): Call <su>mulsi3_highpart.
	(<u>mulsi3_highpart): Rename to <su>mulsi3_highpart.

2021-09-28  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.h (DSYMUTIL_SPEC): Recognize D sources.

2021-09-28  Iain Sandoe  <iain@sandoe.co.uk>

	* config/rs6000/darwin.h (FIXED_R13): Add for PPC64.
	(FIRST_SAVED_GP_REGNO): Save from R13 even when it is one
	of the fixed regs.

2021-09-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64.h (AARCH64_FL_LS64): Define
	(AARCH64_FL_V8_7): Likewise.
	(AARCH64_FL_FOR_ARCH8_7): Likewise.
	* config/aarch64/aarch64-arches.def (armv8.7-a): Define.
	* config/aarch64/aarch64-option-extensions.def (ls64): Define.
	* doc/invoke.texi: Document the above.

2021-09-28  Aldy Hernandez  <aldyh@redhat.com>

	* dbgcnt.c (dbg_cnt_counter): New.
	* dbgcnt.h (dbg_cnt_counter): New.
	* dumpfile.c (dump_options): Add entry for TDF_THREADING.
	* dumpfile.h (enum dump_flag): Add TDF_THREADING.
	* gimple-range-path.cc (DEBUG_SOLVER): Use TDF_THREADING.
	* tree-ssa-threadupdate.c (dump_jump_thread_path): Dump out
	debug counter.

2021-09-28  Aldy Hernandez  <aldyh@redhat.com>

	* cfgcleanup.c (pass_jump::execute): Check
	flag_expensive_optimizations.
	(pass_jump_after_combine::gate): Same.
	* doc/invoke.texi (-fthread-jumps): Enable for -O1.
	* opts.c (default_options_table): Enable -fthread-jumps at -O1.
	* tree-ssa-threadupdate.c
	(fwd_jt_path_registry::remove_jump_threads_including): Bail unless
	flag_thread_jumps.

2021-09-28  Ilya Leoshkevich  <iii@linux.ibm.com>

	* tree-ssa-reassoc.c (biased_names): New global.
	(propagate_bias_p): New function.
	(loop_carried_phi): Remove.
	(propagate_rank): Propagate bias along single uses.
	(get_rank): Update biased_names when needed.

2021-09-28  Ilya Leoshkevich  <iii@linux.ibm.com>

	* passes.def (pass_reassoc): Rename parameter to early_p.
	* tree-ssa-reassoc.c (reassoc_bias_loop_carried_phi_ranks_p):
	New variable.
	(phi_rank): Don't bias loop-carried phi ranks
	before vectorization pass.
	(execute_reassoc): Add bias_loop_carried_phi_ranks_p parameter.
	(pass_reassoc::pass_reassoc): Add bias_loop_carried_phi_ranks_p
	initializer.
	(pass_reassoc::set_param): Set bias_loop_carried_phi_ranks_p
	value.
	(pass_reassoc::execute): Pass bias_loop_carried_phi_ranks_p to
	execute_reassoc.
	(pass_reassoc::bias_loop_carried_phi_ranks_p): New member.

2021-09-28  Jakub Jelinek  <jakub@redhat.com>

	PR target/102498
	* config/i386/i386.c (standard_80387_constant_p): Don't recognize
	special 80387 instruction XFmode constants if flag_rounding_math.

2021-09-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100112
	* tree-ssa-sccvn.c (visit_reference_op_load): Record the
	referece into the hashtable twice in case last_vuse is
	different from the original vuse on the stmt.

2021-09-28  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/102492
	* gimplify.c (gimplify_adjust_omp_clauses_1): Don't call the
	omp_finish_clause langhook on implicitly added OMP_CLAUSE_PRIVATE
	clauses on SIMD constructs.

2021-09-28  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/102511
	* gimple-range-path.cc (path_range_query::range_on_path_entry):
	Return VARYING when nothing found.

2021-09-28  Hongyu Wang  <hongyu.wang@intel.com>

	PR target/102230
	* config/i386/i386.h (VALID_AVX512FP16_REG_MODE): Add
	V2HF mode check.
	(VALID_SSE2_REG_VHF_MODE): Add V4HFmode and V2HFmode.
	(VALID_MMX_REG_MODE): Add V4HFmode.
	(SSE_REG_MODE_P): Replace VALID_AVX512FP16_REG_MODE with
	vector mode condition.
	* config/i386/i386.c (classify_argument): Parse V4HF/V2HF
	via sse regs.
	(function_arg_32): Add V4HFmode.
	(function_arg_advance_32): Likewise.
	* config/i386/i386.md (mode): Add V4HF/V2HF.
	(MODE_SIZE): Likewise.
	* config/i386/mmx.md (MMXMODE): Add V4HF mode.
	(V_32): Add V2HF mode.
	(VHF_32_64): New mode iterator.
	(*mov<mode>_internal): Adjust sse alternatives to support
	V4HF mode move.
	(*mov<mode>_internal): Adjust sse alternatives to support
	V2HF mode move.
	(<insn><mode>3): New define_insn for add/sub/mul/div.

2021-09-28  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (pass_thread_jumps::gate): Check
	flag_thread_jumps.
	(pass_early_thread_jumps::gate): Same.
	* tree-ssa-threadedge.c (jump_threader::thread_outgoing_edges):
	Return if !flag_thread_jumps.
	* tree-ssa-threadupdate.c
	(jt_path_registry::register_jump_thread): Assert that
	flag_thread_jumps is true.

2021-09-28  liuhongt  <hongtao.liu@intel.com>

	* simplify-rtx.c
	(simplify_context::simplify_binary_operation_1): Relax
	condition of simplifying (vec_concat:M (vec_select op0
	index0)(vec_select op1 index1)) to allow different modes
	between op0 and M, but have same inner mode.

2021-09-28  liuhongt  <hongtao.liu@intel.com>

	* config/i386/i386-expand.c (emit_reduc_half): Handle
	V8HF/V16HF/V32HFmode.
	* config/i386/sse.md (REDUC_SSE_PLUS_MODE): Add V8HF.
	(REDUC_SSE_SMINMAX_MODE): Ditto.
	(REDUC_PLUS_MODE): Add V16HF and V32HF.
	(REDUC_SMINMAX_MODE): Ditto.

2021-09-27  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc
	(path_range_query::precompute_ranges_in_block): Rename to...
	(path_range_query::compute_ranges_in_block): ...this.
	(path_range_query::precompute_ranges): Rename to...
	(path_range_query::compute_ranges): ...this.
	(path_range_query::precompute_relations): Rename to...
	(path_range_query::compute_relations): ...this.
	(path_range_query::precompute_phi_relations): Rename to...
	(path_range_query::compute_phi_relations): ...this.
	* gimple-range-path.h: Rename precompute* to compute*.
	* tree-ssa-threadbackward.c
	(back_threader::find_taken_edge_switch): Same.
	(back_threader::find_taken_edge_cond): Same.
	* tree-ssa-threadedge.c
	(hybrid_jt_simplifier::compute_ranges_from_state): Same.
	(hybrid_jt_state::register_equivs_stmt): Inline...
	* tree-ssa-threadedge.h: ...here.

2021-09-27  Aldy Hernandez  <aldyh@redhat.com>

	* tree-vrp.c (lhs_of_dominating_assert): Remove.
	(class vrp_jt_state): Remove.
	(class vrp_jt_simplifier): Remove.
	(vrp_jt_simplifier::simplify): Remove.
	(class vrp_jump_threader): Remove.
	(vrp_jump_threader::vrp_jump_threader): Remove.
	(vrp_jump_threader::~vrp_jump_threader): Remove.
	(vrp_jump_threader::before_dom_children): Remove.
	(vrp_jump_threader::after_dom_children): Remove.

2021-09-27  Aldy Hernandez  <aldyh@redhat.com>

	* passes.def (pass_vrp_threader): New.
	* tree-pass.h (make_pass_vrp_threader): Add make_pass_vrp_threader.
	* tree-ssa-threadedge.c (hybrid_jt_state::register_equivs_stmt): New.
	(hybrid_jt_simplifier::hybrid_jt_simplifier): New.
	(hybrid_jt_simplifier::simplify): New.
	(hybrid_jt_simplifier::compute_ranges_from_state): New.
	* tree-ssa-threadedge.h (class hybrid_jt_state): New.
	(class hybrid_jt_simplifier): New.
	* tree-vrp.c (execute_vrp): Remove ASSERT_EXPR based jump
	threader.
	(class hybrid_threader): New.
	(hybrid_threader::hybrid_threader): New.
	(hybrid_threader::~hybrid_threader): New.
	(hybrid_threader::before_dom_children): New.
	(hybrid_threader::after_dom_children): New.
	(execute_vrp_threader): New.
	(class pass_vrp_threader): New.
	(make_pass_vrp_threader): New.

2021-09-27  Martin Liska  <mliska@suse.cz>

	* output.h (enum section_flag): New.
	(SECTION_FORGET): Remove.
	(SECTION_ENTSIZE): Make it (1UL << 8) - 1.
	(SECTION_STYLE_MASK): Define it based on other enum
	values.
	* varasm.c (switch_to_section): Remove unused handling of
	SECTION_FORGET.

2021-09-27  Martin Liska  <mliska@suse.cz>

	* common.opt: Add new variable flag_default_complex_method.
	* opts.c (finish_options): Handle flags related to
	  x_flag_complex_method.
	* toplev.c (process_options): Remove option handling related
	to flag_complex_method.

2021-09-27  Richard Biener  <rguenther@suse.de>

	PR middle-end/102450
	* gimple-fold.c (gimple_fold_builtin_memory_op): Avoid using
	type_for_size, instead use int_mode_for_size.

2021-09-27  Andrew Pinski  <apinski@marvell.com>

	PR c/94726
	* gimplify.c (gimplify_save_expr): Return early
	if the type of val is error_mark_node.

2021-09-27  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssanames.c (ssa_name_has_boolean_range): Use
	get_range_query.

2021-09-27  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-ssa-evrp-analyze.h (class evrp_range_analyzer): Remove
	vrp_visit_cond_stmt.
	* tree-ssa-dom.c (cprop_operand): Convert to range_query API.
	(cprop_into_stmt): Same.
	(dom_opt_dom_walker::optimize_stmt): Same.

2021-09-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/97351
	PR tree-optimization/97352
	PR tree-optimization/82426
	* tree-vectorizer.h (dr_misalignment): Add vector type
	argument.
	(aligned_access_p): Likewise.
	(known_alignment_for_access_p): Likewise.
	(vect_supportable_dr_alignment): Likewise.
	(vect_known_alignment_in_bytes): Likewise.  Refactor.
	(DR_MISALIGNMENT): Remove.
	(vect_update_shared_vectype): Likewise.
	* tree-vect-data-refs.c (dr_misalignment): Refactor, handle
	a vector type with larger alignment requirement and apply
	the negative step adjustment here.
	(vect_calculate_target_alignment): Remove.
	(vect_compute_data_ref_alignment): Get explicit vector type
	argument, do not apply a negative step alignment adjustment
	here.
	(vect_slp_analyze_node_alignment): Re-analyze alignment
	when we re-visit the DR with a bigger desired alignment but
	keep more precise results from smaller alignments.
	* tree-vect-slp.c (vect_update_shared_vectype): Remove.
	(vect_slp_analyze_node_operations_1): Do not update the
	shared vector type on stmts.
	* tree-vect-stmts.c (vect_analyze_stmt): Push/pop the
	vector type of an SLP node to the representative stmt-info.
	(vect_transform_stmt): Likewise.

2021-09-27  liuhongt  <hongtao.liu@intel.com>

	Revert:
	2021-09-09  liuhongt  <hongtao.liu@intel.com>

	PR target/101059
	* config/i386/sse.md (reduc_plus_scal_<mode>): Split to ..
	(reduc_plus_scal_v4sf): .. this, New define_expand.
	(reduc_plus_scal_v2df): .. and this, New define_expand.

2021-09-26  liuhongt  <hongtao.liu@intel.com>

	* doc/extend.texi (Half-Precision): Remove storage only
	description for _Float16 w/o avx512fp16.

2021-09-25  Dimitar Dimitrov  <dimitar@dinux.eu>

	* config/pru/constraints.md (Rrio): New constraint.
	* config/pru/predicates.md (regio_operand): New predicate.
	* config/pru/pru-pragma.c (pru_register_pragmas): Register
	the __regio_symbol address space.
	* config/pru/pru-protos.h (pru_symref2ioregno): Declaration.
	* config/pru/pru.c (pru_symref2ioregno): New helper function.
	(pru_legitimate_address_p): Remove.
	(pru_addr_space_legitimate_address_p): Use the address space
	aware hook variant.
	(pru_nongeneric_pointer_addrspace): New helper function.
	(pru_insert_attributes): New function to validate __regio_symbol
	usage.
	(TARGET_INSERT_ATTRIBUTES): New macro.
	(TARGET_LEGITIMATE_ADDRESS_P): Remove.
	(TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P): New macro.
	* config/pru/pru.h (enum reg_class): Add REGIO_REGS class.
	* config/pru/pru.md (*regio_readsi): New pattern to read I/O
	registers.
	(*regio_nozext_writesi): New pattern to write to I/O registers.
	(*regio_zext_write_r30<EQS0:mode>): Ditto.
	* doc/extend.texi: Document the new PRU Named Address Space.

2021-09-24  Patrick Palka  <ppalka@redhat.com>

	PR c++/98216
	PR c++/91292
	* real.c (encode_ieee_double): Avoid unwanted sign extension.
	(encode_ieee_quad): Likewise.

2021-09-24  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/102147
	* ira-build.c (ira_conflict_vector_profitable_p): Make
	profitability calculation independent of host compiler pointer and
	IRA_INT_BITS sizes.

2021-09-24  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc (path_range_query::path_range_query):
	Move debugging header...
	(path_range_query::precompute_ranges): ...here.
	(path_range_query::internal_range_of_expr): Do not call
	range_on_path_entry if NAME is defined in the current block.

2021-09-24  Richard Biener  <rguenther@suse.de>

	* cfghooks.c (verify_flow_info): Verify unallocated BB and
	edge flags are not set.

2021-09-24  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadupdate.c (jt_path_registry::cancel_invalid_paths):
	New.
	(jt_path_registry::register_jump_thread): Call
	cancel_invalid_paths.
	* tree-ssa-threadupdate.h (class jt_path_registry): Add
	cancel_invalid_paths.

2021-09-24  Feng Xue  <fxue@os.amperecomputing.com>

	PR tree-optimization/102400
	* tree-ssa-sccvn.c (vn_reference_insert_pieces): Initialize
	result_vdef to zero value.

2021-09-24  Feng Xue  <fxue@os.amperecomputing.com>

	PR tree-optimization/102451
	* tree-ssa-dse.c (delete_dead_or_redundant_call): Record bb of stmt
	before removal.

2021-09-24  Hongyu Wang  <hongyu.wang@intel.com>

	* config/i386/sse.md (cond_<insn><mode>): Extend to support
	vector HFmodes.
	(cond_mul<mode>): Likewise.
	(cond_div<mode>): Likewise.
	(cond_<code><mode>): Likewise.
	(cond_fma<mode>): Likewise.
	(cond_fms<mode>): Likewise.
	(cond_fnma<mode>): Likewise.
	(cond_fnms<mode>): Likewise.

2021-09-23  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/102463
	* gimple-range-fold.cc (fold_using_range::relation_fold_and_or): If
	there is no range-ops handler, don't look for a relation.

2021-09-23  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (ranger_cache::ranger_cache): Take
	non-executable_edge flag as parameter.
	* gimple-range-cache.h (ranger_cache): Adjust prototype.
	* gimple-range-gori.cc (gori_compute::gori_compute): Take
	non-executable_edge flag as parameter.
	(gori_compute::outgoing_edge_range_p): Check new flag.
	* gimple-range-gori.h (gori_compute): Adjust prototype.
	* gimple-range.cc (gimple_ranger::gimple_ranger): Create new flag.
	(gimple_ranger::range_on_edge): Check new flag.
	* gimple-range.h (gimple_ranger::non_executable_edge_flag): New.
	* gimple-ssa-evrp.c (rvrp_folder): Pass ranger flag to simplifer.
	(hybrid_folder::hybrid_folder): Set ranger non-executable flag value.
	(hybrid_folder::fold_stmt): Set flag value in the simplifer.
	* vr-values.c (simplify_using_ranges::set_and_propagate_unexecutable):
	Use not_executable flag if provided inmstead of EDGE_EXECUTABLE.
	(simplify_using_ranges::simplify_switch_using_ranges): Clear
	EDGE_EXECUTABLE like it originally did.
	(simplify_using_ranges::cleanup_edges_and_switches): Clear any
	NON_EXECUTABLE flags.
	(simplify_using_ranges::simplify_using_ranges): Adjust.
	* vr-values.h (class simplify_using_ranges): Adjust.
	(simplify_using_ranges::set_range_query): Add non-executable flag param.

2021-09-23  Bill Schmidt  <wschmidt@linux.ibm.com>

	PR target/102024
	* config/rs6000/rs6000-call.c (rs6000_aggregate_candidate): Detect
	zero-width bit fields and return indicator.
	(rs6000_discover_homogeneous_aggregate): Diagnose when the
	presence of a zero-width bit field changes parameter passing in
	GCC 12.

2021-09-23  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-fold.cc (fold_using_range::range_of_phi):
	Remove dominator check.

2021-09-23  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc (path_range_query::precompute_relations):
	Hoist edge calculations before using EDGE_SUCC.

2021-09-23  Jonathan Wakely  <jwakely@redhat.com>

	* configure.ac: Fix --with-multilib-list description.
	* configure: Regenerate.

2021-09-23  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102448
	* tree-vect-data-refs.c (vect_duplicate_ssa_name_ptr_info):
	Clear alignment info copied from DR_PTR_INFO.

2021-09-23  Hongyu Wang  <hongyu.wang@intel.com>

	* config/i386/i386-expand.c (ix86_use_mask_cmp_p): Enable
	HFmode mask_cmp.
	* config/i386/sse.md (sseintvecmodelower): Add HF vector modes.
	(<avx512>_store<mode>_mask): Extend to support HF vector modes.
	(vec_cmp<mode><avx512fmaskmodelower>): Likewise.
	(vcond_mask_<mode><avx512fmaskmodelower>): Likewise.
	(vcond<mode><mode>): New expander.
	(vcond<mode><sseintvecmodelower>): Likewise.
	(vcond<sseintvecmodelower><mode>): Likewise.
	(vcondu<mode><sseintvecmodelower>): Likewise.

2021-09-23  Hongyu Wang  <hongyu.wang@intel.com>

	* config/i386/sse.md (extend<ssePHmodelower><mode>2):
	New expander.
	(extendv4hf<mode>2): Likewise.
	(extendv2hfv2df2): Likewise.
	(trunc<mode><ssePHmodelower>2): Likewise.
	(avx512fp16_vcvt<castmode>2ph_<mode>): Rename to ...
	(trunc<mode>v4hf2): ... this, and drop constraints.
	(avx512fp16_vcvtpd2ph_v2df): Rename to ...
	(truncv2dfv2hf2): ... this, and likewise.

2021-09-23  Hongyu Wang  <hongyu.wang@intel.com>

	* config/i386/sse.md (float<floatunssuffix><mode><ssePHmodelower>2):
	New expander.
	(avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode>):
	Rename to ...
	(float<floatunssuffix><mode>v4hf2): ... this, and drop constraints.
	(avx512fp16_vcvt<floatsuffix>qq2ph_v2di): Rename to ...
	(float<floatunssuffix>v2div2hf2): ... this, and likewise.

2021-09-23  Hongyu Wang  <hongyu.wang@intel.com>

	* config/i386/i386.md (fix<fixunssuffix>_trunchf<mode>2): New expander.
	(fixuns_trunchfhi2): Likewise.
	(*fixuns_trunchfsi2zext): New define_insn.
	* config/i386/sse.md (ssePHmodelower): New mode_attr.
	(fix<fixunssuffix>_trunc<ssePHmodelower><mode>2):
	New expander for same element vector fix_truncate.
	(fix<fixunssuffix>_trunc<ssePHmodelower><mode>2):
	Likewise for V4HF to V4SI/V4DI fix_truncate.
	(fix<fixunssuffix>_truncv2hfv2di2):
	Likeise for V2HF to V2DI fix_truncate.

2021-09-23  Hongyu Wang  <hongyu.wang@intel.com>

	* config/i386/i386.md (<code>hf3): New expander.

2021-09-23  liuhongt  <hongtao.liu@intel.com>

	* config/i386/sse.md (FMAMODEM): extend to handle FP16.
	(VFH_SF_AVX512VL): Extend to handle HFmode.
	(VF_SF_AVX512VL): Deleted.

2021-09-23  liuhongt  <hongtao.liu@intel.com>

	* config/i386/i386.md (rinthf2): New expander.
	(nearbyinthf2): New expander.

2021-09-23  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-dom.c (class dom_jump_threader_simplifier): Rename...
	(class dom_jt_state): ...this and provide virtual overrides.
	(dom_jt_state::register_equiv): New.
	(class dom_jt_simplifier): Rename from
	dom_jump_threader_simplifier.
	(dom_jump_threader_simplifier::simplify): Rename...
	(dom_jt_simplifier::simplify): ...to this.
	(pass_dominator::execute): Use dom_jt_simplifier and
	dom_jt_state.
	* tree-ssa-threadedge.c (jump_threader::jump_threader):
	Clean-up.
	(jt_state::register_equivs_stmt): Abstract out...
	(jump_threader::record_temporary_equivalences_from_stmts_at_dest):
	...from here.
	(jump_threader::thread_around_empty_blocks): Update state.
	(jump_threader::thread_through_normal_block): Same.
	(jt_state::jt_state): Remove.
	(jt_state::push): Remove pass specific bits.  Keep block vector
	updated.
	(jt_state::append_path): New.
	(jt_state::pop): Remove pass specific bits.
	(jt_state::register_equiv): Same.
	(jt_state::record_ranges_from_stmt): Same.
	(jt_state::register_equivs_on_edge): Same.  Rename...
	(jt_state::register_equivs_edge):  ...to this.
	(jt_state::dump): New.
	(jt_state::debug): New.
	(jump_threader_simplifier::simplify): Remove.
	(jt_state::get_path): New.
	* tree-ssa-threadedge.h (class jt_simplifier): Make into a base
	class.  Expose common functionality as virtual methods.
	(class jump_threader_simplifier): Same.  Rename...
	(class jt_simplifier): ...to this.
	* tree-vrp.c (class vrp_jump_threader_simplifier): Rename...
	(class vrp_jt_simplifier): ...to this. Provide pass specific
	overrides.
	(class vrp_jt_state): New.
	(vrp_jump_threader_simplifier::simplify): Rename...
	(vrp_jt_simplifier::simplify): ...to this.  Inline code from
	what used to be the base class.
	(vrp_jump_threader::vrp_jump_threader): Use vrp_jt_state and
	vrp_jt_simplifier.

2021-09-22  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/55534
	* doc/invoke.texi (-Wno-missing-include-dirs.): Document Fortran
	behavior.

2021-09-22  Roger Sayle  <roger@nextmovesoftware.com>
	    Richard Biener  <rguenther@suse.de>

	* match.pd (negation simplifications): Implement some negation
	folding transformations from fold-const.c's fold_negate_expr.
	* tree-ssa-sccvn.c (vn_nary_build_or_lookup_1): Add a SIMPLIFY
	argument, to control whether the op should be simplified prior
	to looking up/assigning a value number.
	(vn_nary_build_or_lookup): Update call to vn_nary_build_or_lookup_1.
	(vn_nary_simplify): Likewise.
	(visit_nary_op): Likewise, but when constructing a NEGATE_EXPR
	now call vn_nary_build_or_lookup_1 disabling simplification.

2021-09-22  Jiufu Guo  <guojiufu@linux.ibm.com>

	PR tree-optimization/102087
	* tree-ssa-loop-niter.c (number_of_iterations_until_wrap):
	Update bound/cmp/control for niter.

2021-09-22  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-fold.cc (fold_using_range::range_of_range_op):
	Move check for non-empty BB here.
	(fur_source::register_outgoing_edges): ...from here.

2021-09-22  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc (path_range_query::internal_range_of_expr):
	Remove call to improve_range_with_equivs.
	(path_range_query::improve_range_with_equivs): Remove
	* gimple-range-path.h: Remove improve_range_with_equivs.

2021-09-22  dianhong xu  <dianhong.xu@intel.com>

	* config/i386/avx512fp16intrin.h:
	(_mm512_mask_blend_ph): New intrinsic.
	(_mm512_permutex2var_ph): Ditto.
	(_mm512_permutexvar_ph): Ditto.
	* config/i386/avx512fp16vlintrin.h:
	(_mm256_mask_blend_ph): New intrinsic.
	(_mm256_permutex2var_ph): Ditto.
	(_mm256_permutexvar_ph): Ditto.
	(_mm_mask_blend_ph): Ditto.
	(_mm_permutex2var_ph): Ditto.
	(_mm_permutexvar_ph): Ditto.

2021-09-22  dianhong xu  <dianhong.xu@intel.com>

	* config/i386/avx512fp16intrin.h: Add new intrinsics.
	(_mm512_conj_pch): New intrinsic.
	(_mm512_mask_conj_pch): Ditto.
	(_mm512_maskz_conj_pch): Ditto.
	* config/i386/avx512fp16vlintrin.h: Add new intrinsics.
	(_mm256_conj_pch): New intrinsic.
	(_mm256_mask_conj_pch): Ditto.
	(_mm256_maskz_conj_pch): Ditto.
	(_mm_conj_pch): Ditto.
	(_mm_mask_conj_pch): Ditto.
	(_mm_maskz_conj_pch): Ditto.

2021-09-22  dianhong xu  <dianhong.xu@intel.com>

	* config/i386/avx512fp16intrin.h (_MM512_REDUCE_OP): New macro
	(_mm512_reduce_add_ph): New intrinsic.
	(_mm512_reduce_mul_ph): Ditto.
	(_mm512_reduce_min_ph): Ditto.
	(_mm512_reduce_max_ph): Ditto.
	* config/i386/avx512fp16vlintrin.h
	(_MM256_REDUCE_OP/_MM_REDUCE_OP): New macro.
	(_mm256_reduce_add_ph): New intrinsic.
	(_mm256_reduce_mul_ph): Ditto.
	(_mm256_reduce_min_ph): Ditto.
	(_mm256_reduce_max_ph): Ditto.
	(_mm_reduce_add_ph): Ditto.
	(_mm_reduce_mul_ph): Ditto.
	(_mm_reduce_min_ph): Ditto.
	(_mm_reduce_max_ph): Ditto.

2021-09-22  dianhong xu  <dianhong.xu@intel.com>

	* config/i386/avx512fp16intrin.h (__m512h_u, __m256h_u,
	__m128h_u): New typedef.
	(_mm512_load_ph): New intrinsic.
	(_mm256_load_ph): Ditto.
	(_mm_load_ph): Ditto.
	(_mm512_loadu_ph): Ditto.
	(_mm256_loadu_ph): Ditto.
	(_mm_loadu_ph): Ditto.
	(_mm512_store_ph): Ditto.
	(_mm256_store_ph): Ditto.
	(_mm_store_ph): Ditto.
	(_mm512_storeu_ph): Ditto.
	(_mm256_storeu_ph): Ditto.
	(_mm_storeu_ph): Ditto.
	(_mm512_abs_ph): Ditto.
	* config/i386/avx512fp16vlintrin.h
	(_mm_abs_ph): Ditto.
	(_mm256_abs_ph): Ditto.

2021-09-22  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/tpf.md (prologue_tpf, epilogue_tpf): Add cc clobber.

2021-09-22  Andreas Krebbel  <krebbel@linux.ibm.com>

	PR target/102222
	* config/s390/s390.c (s390_expand_insv): Emit a normal move if it
	is actually a full copy of the source operand into the target.
	Don't emit a strict low part move if source and target mode match.

2021-09-22  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/102415
	* omp-expand.c (expand_omp_single): If region->exit is NULL,
	assert region->entry is GIMPLE_OMP_SCOPE region and return.

2021-09-22  Jakub Jelinek  <jakub@redhat.com>

	* tree.h (OMP_CLAUSE_ALLOCATE_ALIGN): Define.
	* tree.c (omp_clause_num_ops): Change number of OMP_CLAUSE_ALLOCATE
	arguments from 2 to 3.
	* tree-pretty-print.c (dump_omp_clause): Print allocator() around
	allocate clause allocator and print align if present.
	* omp-low.c (scan_sharing_clauses): Force allocate_map entry even
	for omp_default_mem_alloc if align modifier is present.  If align
	modifier is present, use TREE_LIST to encode both allocator and
	align.
	(lower_private_allocate, lower_rec_input_clauses, create_task_copyfn):
	Handle align modifier on allocator clause if present.

2021-09-22  liuhongt  <hongtao.liu@intel.com>

	* config/i386/i386.md (define_attr "isa"): Add
	fma_or_avx512vl.
	(define_attr "enabled"): Correspond fma_or_avx512vl to
	TARGET_FMA || TARGET_AVX512VL.
	* config/i386/mmx.md (fmav2sf4): Extend to AVX512 fma.
	(fmsv2sf4): Ditto.
	(fnmav2sf4): Ditto.
	(fnmsv2sf4): Ditto.

2021-09-22  liuhongt  <hongtao.liu@intel.com>

	* config/i386/i386.md (cstorehf3): New define_expand.

2021-09-22  liuhongt  <hongtao.liu@intel.com>

	* config/i386/i386.md (<rounding_insn>hf2): New expander.
	(sse4_1_round<mode>2): Extend from MODEF to MODEFH.
	* config/i386/sse.md (*sse4_1_round<ssescalarmodesuffix>):
	Extend from VF_128 to VFH_128.

2021-09-22  liuhongt  <hongtao.liu@intel.com>

	* config/i386/i386-features.c (i386-features.c): Handle
	E_HFmode.
	* config/i386/i386.md (sqrthf2): New expander.
	(*sqrthf2): New define_insn.
	* config/i386/sse.md
	(*<sse>_vmsqrt<mode>2<mask_scalar_name><round_scalar_name>):
	Extend to VFH_128.

2021-09-22  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm_mask_fcmadd_sch):
	New intrinsic.
	(_mm_mask3_fcmadd_sch): Likewise.
	(_mm_maskz_fcmadd_sch): Likewise.
	(_mm_fcmadd_sch): Likewise.
	(_mm_mask_fmadd_sch): Likewise.
	(_mm_mask3_fmadd_sch): Likewise.
	(_mm_maskz_fmadd_sch): Likewise.
	(_mm_fmadd_sch): Likewise.
	(_mm_mask_fcmadd_round_sch): Likewise.
	(_mm_mask3_fcmadd_round_sch): Likewise.
	(_mm_maskz_fcmadd_round_sch): Likewise.
	(_mm_fcmadd_round_sch): Likewise.
	(_mm_mask_fmadd_round_sch): Likewise.
	(_mm_mask3_fmadd_round_sch): Likewise.
	(_mm_maskz_fmadd_round_sch): Likewise.
	(_mm_fmadd_round_sch): Likewise.
	(_mm_fcmul_sch): Likewise.
	(_mm_mask_fcmul_sch): Likewise.
	(_mm_maskz_fcmul_sch): Likewise.
	(_mm_fmul_sch): Likewise.
	(_mm_mask_fmul_sch): Likewise.
	(_mm_maskz_fmul_sch): Likewise.
	(_mm_fcmul_round_sch): Likewise.
	(_mm_mask_fcmul_round_sch): Likewise.
	(_mm_maskz_fcmul_round_sch): Likewise.
	(_mm_fmul_round_sch): Likewise.
	(_mm_mask_fmul_round_sch): Likewise.
	(_mm_maskz_fmul_round_sch): Likewise.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/sse.md
	(avx512fp16_fmaddcsh_v8hf_maskz<round_expand_name>): New expander.
	(avx512fp16_fcmaddcsh_v8hf_maskz<round_expand_name>): Ditto.
	(avx512fp16_fma_<complexopname>sh_v8hf<mask_scalarcz_name><round_scalarcz_name>):
	New define insn.
	(avx512fp16_<complexopname>sh_v8hf_mask<round_name>): Ditto.
	(avx512fp16_<complexopname>sh_v8hf<mask_scalarc_name><round_scalarcz_name>):
	Ditto.
	* config/i386/subst.md (mask_scalarcz_name): New.
	(mask_scalarc_name): Ditto.
	(mask_scalarc_operand3): Ditto.
	(mask_scalarcz_operand4): Ditto.
	(round_scalarcz_name): Ditto.
	(round_scalarc_mask_operand3): Ditto.
	(round_scalarcz_mask_operand4): Ditto.
	(round_scalarc_mask_op3): Ditto.
	(round_scalarcz_mask_op4): Ditto.
	(round_scalarcz_constraint): Ditto.
	(round_scalarcz_nimm_predicate): Ditto.
	(mask_scalarcz): Ditto.
	(mask_scalarc): Ditto.
	(round_scalarcz): Ditto.

2021-09-22  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm512_fcmadd_pch):
	New intrinsic.
	(_mm512_mask_fcmadd_pch): Likewise.
	(_mm512_mask3_fcmadd_pch): Likewise.
	(_mm512_maskz_fcmadd_pch): Likewise.
	(_mm512_fmadd_pch): Likewise.
	(_mm512_mask_fmadd_pch): Likewise.
	(_mm512_mask3_fmadd_pch): Likewise.
	(_mm512_maskz_fmadd_pch): Likewise.
	(_mm512_fcmadd_round_pch): Likewise.
	(_mm512_mask_fcmadd_round_pch): Likewise.
	(_mm512_mask3_fcmadd_round_pch): Likewise.
	(_mm512_maskz_fcmadd_round_pch): Likewise.
	(_mm512_fmadd_round_pch): Likewise.
	(_mm512_mask_fmadd_round_pch): Likewise.
	(_mm512_mask3_fmadd_round_pch): Likewise.
	(_mm512_maskz_fmadd_round_pch): Likewise.
	(_mm512_fcmul_pch): Likewise.
	(_mm512_mask_fcmul_pch): Likewise.
	(_mm512_maskz_fcmul_pch): Likewise.
	(_mm512_fmul_pch): Likewise.
	(_mm512_mask_fmul_pch): Likewise.
	(_mm512_maskz_fmul_pch): Likewise.
	(_mm512_fcmul_round_pch): Likewise.
	(_mm512_mask_fcmul_round_pch): Likewise.
	(_mm512_maskz_fcmul_round_pch): Likewise.
	(_mm512_fmul_round_pch): Likewise.
	(_mm512_mask_fmul_round_pch): Likewise.
	(_mm512_maskz_fmul_round_pch): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm_fmadd_pch):
	New intrinsic.
	(_mm_mask_fmadd_pch): Likewise.
	(_mm_mask3_fmadd_pch): Likewise.
	(_mm_maskz_fmadd_pch): Likewise.
	(_mm256_fmadd_pch): Likewise.
	(_mm256_mask_fmadd_pch): Likewise.
	(_mm256_mask3_fmadd_pch): Likewise.
	(_mm256_maskz_fmadd_pch): Likewise.
	(_mm_fcmadd_pch): Likewise.
	(_mm_mask_fcmadd_pch): Likewise.
	(_mm_mask3_fcmadd_pch): Likewise.
	(_mm_maskz_fcmadd_pch): Likewise.
	(_mm256_fcmadd_pch): Likewise.
	(_mm256_mask_fcmadd_pch): Likewise.
	(_mm256_mask3_fcmadd_pch): Likewise.
	(_mm256_maskz_fcmadd_pch): Likewise.
	(_mm_fmul_pch): Likewise.
	(_mm_mask_fmul_pch): Likewise.
	(_mm_maskz_fmul_pch): Likewise.
	(_mm256_fmul_pch): Likewise.
	(_mm256_mask_fmul_pch): Likewise.
	(_mm256_maskz_fmul_pch): Likewise.
	(_mm_fcmul_pch): Likewise.
	(_mm_mask_fcmul_pch): Likewise.
	(_mm_maskz_fcmul_pch): Likewise.
	(_mm256_fcmul_pch): Likewise.
	(_mm256_mask_fcmul_pch): Likewise.
	(_mm256_maskz_fcmul_pch): Likewise.
	* config/i386/i386-builtin-types.def (V8HF_FTYPE_V8HF_V8HF_V8HF,
	V8HF_FTYPE_V16HF_V16HF_V16HF, V16HF_FTYPE_V16HF_V16HF_V16HF_UQI,
	V32HF_FTYPE_V32HF_V32HF_V32HF_INT,
	V32HF_FTYPE_V32HF_V32HF_V32HF_UHI_INT): Add new builtin types.
	* config/i386/i386-builtin.def: Add new builtins.
	* config/i386/i386-expand.c: Handle new builtin types.
	* config/i386/subst.md (SUBST_CV): New.
	(maskc_name): Ditto.
	(maskc_operand3): Ditto.
	(maskc): Ditto.
	(sdc_maskz_name): Ditto.
	(sdc_mask_op4): Ditto.
	(sdc_mask_op5): Ditto.
	(sdc_mask_mode512bit_condition): Ditto.
	(sdc): Ditto.
	(round_maskc_operand3): Ditto.
	(round_sdc_mask_operand4): Ditto.
	(round_maskc_op3): Ditto.
	(round_sdc_mask_op4): Ditto.
	(round_saeonly_sdc_mask_operand5): Ditto.
	* config/i386/sse.md (unspec): Add complex fma unspecs.
	(avx512fmaskcmode): New.
	(UNSPEC_COMPLEX_F_C_MA): Ditto.
	(UNSPEC_COMPLEX_F_C_MUL): Ditto.
	(complexopname): Ditto.
	(<avx512>_fmaddc_<mode>_maskz<round_expand_name>): New expander.
	(<avx512>_fcmaddc_<mode>_maskz<round_expand_name>): Ditto.
	(fma_<complexopname>_<mode><sdc_maskz_name><round_name>): New
	define insn.
	(<avx512>_<complexopname>_<mode>_mask<round_name>): Ditto.
	(<avx512>_<complexopname>_<mode><maskc_name><round_name>): Ditto.

2021-09-22  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/rs6000.opt (rs6000-density-pct-threshold,
	rs6000-density-size-threshold, rs6000-density-penalty,
	rs6000-density-load-pct-threshold,
	rs6000-density-load-num-threshold): New parameter.
	* config/rs6000/rs6000.c (rs6000_density_test): Adjust with
	corresponding parameters.

2021-09-21  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc (path_range_query::defined_outside_path):
	New.
	(path_range_query::range_on_path_entry): New.
	(path_range_query::internal_range_of_expr): Resolve unknowns
	with ranger.
	(path_range_query::improve_range_with_equivs): New.
	(path_range_query::ssa_range_in_phi): Resolve unknowns with
	ranger.
	* gimple-range-path.h (class path_range_query): Add
	defined_outside_path, range_on_path_entry, and
	improve_range_with_equivs.

2021-09-21  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc (path_range_query::add_to_imports): New.
	(path_range_query::add_copies_to_imports): New.
	(path_range_query::precompute_ranges): Call
	add_copies_to_imports.
	* gimple-range-path.h (class path_range_query): Add prototypes
	for add_copies_to_imports and add_to_imports.

2021-09-21  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc (path_range_query::range_defined_in_block):
	Remove useless code.

2021-09-21  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-fold.h (class fur_source): Make oracle protected.
	* gimple-range-path.cc (path_range_query::path_range_query): Add
	resolve argument.  Initialize oracle.
	(path_range_query::~path_range_query): Delete oracle.
	(path_range_query::range_of_stmt): Adapt to use relations.
	(path_range_query::precompute_ranges): Pre-compute relations.
	(class jt_fur_source): New
	(jt_fur_source::jt_fur_source): New.
	(jt_fur_source::register_relation): New.
	(jt_fur_source::query_relation): New.
	(path_range_query::precompute_relations): New.
	(path_range_query::precompute_phi_relations): New.
	* gimple-range-path.h (path_range_query): Add resolve argument.
	Add oracle, precompute_relations, precompute_phi_relations.
	* tree-ssa-threadbackward.c (back_threader::back_threader): Pass
	resolve argument to solver.

2021-09-21  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-fold.cc (fold_using_range::range_of_range_op):
	Rename postfold_gcond_edges to register_outgoing_edges and
	adapt.
	(fold_using_range::postfold_gcond_edges): Rename...
	(fur_source::register_outgoing_edges): ...to this.
	* gimple-range-fold.h (postfold_gcond_edges): Rename to
	register_outgoing_edges and move to fur_source.

2021-09-21  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-fold.cc (fold_using_range::range_of_phi): Check
	dom_info_available_p.

2021-09-21  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-cache.cc (non_null_ref::non_null_ref): Use create
	and quick_grow_cleared instead of safe_grow_cleared.

2021-09-21  Thomas Schwinge  <thomas@codesourcery.com>

	PR other/102408
	* omp-oacc-neuter-broadcast.cc (oacc_do_neutering): Evaluate
	'random ()' to '0'.

2021-09-21  Richard Earnshaw  <rearnsha@arm.com>

	* configure.ac: Detect when the assembler supports new-style
	architecture extensions.
	* common/config/arm/arm-common.c (arm_rewrite_mcpu): Return
	the full CPU string if the assembler can grok it.
	(arm_rewrite_march): Likewise but for the architecture.
	* config.in: Regenerate.
	* configure: Regenerate.

2021-09-21  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102421
	* tree-vect-loop.c (vect_dissolve_slp_only_groups): Copy and
	adjust alignment info.

2021-09-21  Kewen Lin  <linkw@linux.ibm.com>

	* ipa-fnsummary.c (ipa_fn_summary_write): Remove inconsistent
	bitfield stream out.

2021-09-20  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-fold.cc (fold_using_range::range_of_phi): Ignore
	undefined edges, apply an equivalence if appropriate.
	* gimple-range-gori.cc (gori_compute::outgoing_edge_range_p): Return
	UNDEFINED if EDGE_EXECUTABLE is not set.
	* gimple-range.cc (gimple_ranger::gimple_ranger): Set all edges
	as EXECUTABLE upon startup.
	(gimple_ranger::range_on_edge): Return UNDEFINED for edges without
	EDGE_EXECUTABLE set.
	* vr-values.c (set_and_propagate_unexecutable): New.
	(simplify_using_ranges::fold_cond): Call set_and_propagate.
	(simplify_using_ranges::simplify_switch_using_ranges): Ditto.
	* vr-values.h: Add prototype.

2021-09-20  Andrew MacLeod  <amacleod@redhat.com>

	* value-relation.cc (equiv_oracle::register_initial_def): New.
	(equiv_oracle::register_relation): Call register_initial_def.
	(equiv_oracle::add_equiv_to_block): New.  Split register_relation.
	(relation_oracle::register_stmt): Check def block of PHI arguments.
	* value-relation.h (equiv_oracle): Add new prototypes.

2021-09-20  Matthias Kretz  <m.kretz@gsi.de>

	* cppbuiltin.c (define_builtin_macros_for_compilation_flags):
	Define __RECIPROCAL_MATH__, __NO_SIGNED_ZEROS__,
	__NO_TRAPPING_MATH__, __ASSOCIATIVE_MATH__, and
	__ROUNDING_MATH__ according to their corresponding flags.
	* doc/cpp.texi: Document __RECIPROCAL_MATH__,
	__NO_SIGNED_ZEROS__, __NO_TRAPPING_MATH__, __ASSOCIATIVE_MATH__,
	and __ROUNDING_MATH__.

2021-09-20  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.c (vectorizable_load): Use the vectype
	from the SLP node.

2021-09-20  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_duplicate_ssa_name_ptr_info):
	Do not compute alignment of the vectorized access here.

2021-09-20  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
	Store -1 for runtime alias peeling iterations.

2021-09-20  Richard Biener  <rguenther@suse.de>

	* config.gcc: Obsolete hppa[12]*-*-hpux10* and hppa[12]*-*-hpux11*.

2021-09-20  Thomas Schwinge  <thomas@codesourcery.com>

	* input.c (string_concat_db::record_string_concatenation)
	(string_concat_db::get_string_concatenation): Skip for
	'RESERVED_LOCATION_P'.

2021-09-20  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/65206
	* tree-data-ref.h (struct data_reference): Add alt_indices,
	order it last.
	* tree-data-ref.c (free_data_ref): Release alt_indices.
	(dr_analyze_indices): Work on struct indices and get DR_REF as tree.
	(create_data_ref): Adjust.
	(initialize_data_dependence_relation): Split into head
	and tail.  When the base objects fail to match up try
	again with pointer-based analysis of indices.
	* tree-vectorizer.c (vec_info_shared::check_datarefs): Do
	not compare the lazily computed alternate set of indices.

2021-09-20  Iain Sandoe  <iain@sandoe.co.uk>

	* gcc.c: Test for execute OK when we find the
	programs for assembler linker and dsymutil and those
	were specified at configure-time.

2021-09-19  Martin Sebor  <msebor@redhat.com>

	PR middle-end/102403
	* gimple-predicate-analysis.cc (predicate::init_from_control_deps):
	Correct a function pre/postcondition.

2021-09-19  Martin Sebor  <msebor@redhat.com>

	PR middle-end/102243
	* tree-ssa-strlen.c (get_range): Handle null cfun.

2021-09-19  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.h (LINK_COMMAND_SPEC_A): Use Darwin10
	unwinder shim as a convenience library.

2021-09-19  Andrew Pinski  <apinski@marvell.com>

	* doc/install.texi: Add note about
	binutils 2.35 is required for LTO usage.

2021-09-19  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c
	(back_threader_registry::register_path): Use push_edge.
	* tree-ssa-threadedge.c
	(jump_threader::thread_around_empty_blocks): Same.
	(jump_threader::thread_through_normal_block): Same.
	(jump_threader::thread_across_edge): Same.  Also, use auto_bitmap.
	Tidy up code.
	* tree-ssa-threadupdate.c
	(jt_path_registry::allocate_thread_edge): Remove.
	(jt_path_registry::push_edge): New.
	(dump_jump_thread_path): Make static.
	* tree-ssa-threadupdate.h (allocate_thread_edge): Remove.
	(push_edge): New.

2021-09-19  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc (path_range_query::path_range_query): Add
	header.
	(path_range_query::dump): Remove extern declaration of dump_ranger.
	* gimple-range-trace.cc (dump_ranger): Add DEBUG_FUNCTION marker.
	* gimple-range-trace.h (dump_ranger): Add prototype.

2021-09-19  John Ericson  <git@JohnEricson.me>

	* gcc.c (find_a_program): New function, factored out of...
	(find_a_file): Here.
	(execute): Use find_a_program when looking for programs rather
	than find_a_file.

2021-09-19  Matwey V. Kornilov  <matwey.kornilov@gmail.com>

	* config/avr/avr-mcus.def: Add atmega324pb.
	* doc/avr-mmcu.texi: Corresponding changes.

2021-09-19  Roger Sayle  <roger@nextmovesoftware.com>

	PR middle-end/88173
	* match.pd (cmp @0 REAL_CST@1): When @0 is also REAL_CST, apply
	the same transformations as to @1.  For comparisons against NaN,
	don't check HONOR_SNANS but confirm that neither operand is a
	signaling NaN.

2021-09-19  Benjamin Peterson  <benjamin@locrian.net>

	* attribs.c (make_unique_name): Delete.
	* attribs.h (make_unique_name): Delete.

2021-09-19  Andrew Pinski  <apinski@marvell.com>

	* lra-constraints.c (check_and_process_move): Assert
	that dclass and sclass are greater than or equal to NO_REGS.

2021-09-18  Jakub Jelinek  <jakub@redhat.com>

	* tree.h (OMP_CLAUSE_ORDER_UNCONSTRAINED): Define.
	* tree-pretty-print.c (dump_omp_clause): Print unconstrained:
	for OMP_CLAUSE_ORDER_UNCONSTRAINED.

2021-09-18  liuhongt  <hongtao.liu@intel.com>

	* config/i386/i386-features.c (remove_partial_avx_dependency):
	Restrict TARGET_USE_VECTOR_FP_CONVERTS and
	TARGET_USE_VECTOR_CONVERTS to conversion instructions only.

2021-09-18  Jakub Jelinek  <jakub@redhat.com>

	* gimplify.c (omp_default_clause): For C/C++ default({,first}private),
	if file/namespace scope variable doesn't have predetermined sharing,
	treat it as if there was default(none).

2021-09-18  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm_fmadd_sh):
	New intrinsic.
	(_mm_mask_fmadd_sh): Likewise.
	(_mm_mask3_fmadd_sh): Likewise.
	(_mm_maskz_fmadd_sh): Likewise.
	(_mm_fmadd_round_sh): Likewise.
	(_mm_mask_fmadd_round_sh): Likewise.
	(_mm_mask3_fmadd_round_sh): Likewise.
	(_mm_maskz_fmadd_round_sh): Likewise.
	(_mm_fnmadd_sh): Likewise.
	(_mm_mask_fnmadd_sh): Likewise.
	(_mm_mask3_fnmadd_sh): Likewise.
	(_mm_maskz_fnmadd_sh): Likewise.
	(_mm_fnmadd_round_sh): Likewise.
	(_mm_mask_fnmadd_round_sh): Likewise.
	(_mm_mask3_fnmadd_round_sh): Likewise.
	(_mm_maskz_fnmadd_round_sh): Likewise.
	(_mm_fmsub_sh): Likewise.
	(_mm_mask_fmsub_sh): Likewise.
	(_mm_mask3_fmsub_sh): Likewise.
	(_mm_maskz_fmsub_sh): Likewise.
	(_mm_fmsub_round_sh): Likewise.
	(_mm_mask_fmsub_round_sh): Likewise.
	(_mm_mask3_fmsub_round_sh): Likewise.
	(_mm_maskz_fmsub_round_sh): Likewise.
	(_mm_fnmsub_sh): Likewise.
	(_mm_mask_fnmsub_sh): Likewise.
	(_mm_mask3_fnmsub_sh): Likewise.
	(_mm_maskz_fnmsub_sh): Likewise.
	(_mm_fnmsub_round_sh): Likewise.
	(_mm_mask_fnmsub_round_sh): Likewise.
	(_mm_mask3_fnmsub_round_sh): Likewise.
	(_mm_maskz_fnmsub_round_sh): Likewise.
	* config/i386/i386-builtin-types.def
	(V8HF_FTYPE_V8HF_V8HF_V8HF_UQI_INT): New builtin type.
	* config/i386/i386-builtin.def: Add new builtins.
	* config/i386/i386-expand.c: Handle new builtin type.
	* config/i386/sse.md (fmai_vmfmadd_<mode><round_name>):
	Ajdust to support FP16.
	(fmai_vmfmsub_<mode><round_name>): Ditto.
	(fmai_vmfnmadd_<mode><round_name>): Ditto.
	(fmai_vmfnmsub_<mode><round_name>): Ditto.
	(*fmai_fmadd_<mode>): Ditto.
	(*fmai_fmsub_<mode>): Ditto.
	(*fmai_fnmadd_<mode><round_name>): Ditto.
	(*fmai_fnmsub_<mode><round_name>): Ditto.
	(avx512f_vmfmadd_<mode>_mask<round_name>): Ditto.
	(avx512f_vmfmadd_<mode>_mask3<round_name>): Ditto.
	(avx512f_vmfmadd_<mode>_maskz<round_expand_name>): Ditto.
	(avx512f_vmfmadd_<mode>_maskz_1<round_name>): Ditto.
	(*avx512f_vmfmsub_<mode>_mask<round_name>): Ditto.
	(avx512f_vmfmsub_<mode>_mask3<round_name>): Ditto.
	(*avx512f_vmfmsub_<mode>_maskz_1<round_name>): Ditto.
	(*avx512f_vmfnmsub_<mode>_mask<round_name>): Ditto.
	(*avx512f_vmfnmsub_<mode>_mask3<round_name>): Ditto.
	(*avx512f_vmfnmsub_<mode>_mask<round_name>): Ditto.
	(*avx512f_vmfnmadd_<mode>_mask<round_name>): Renamed to ...
	(avx512f_vmfnmadd_<mode>_mask<round_name>) ... this, and
	adjust to support FP16.
	(avx512f_vmfnmadd_<mode>_mask3<round_name>): Ditto.
	(avx512f_vmfnmadd_<mode>_maskz_1<round_name>): Ditto.
	(avx512f_vmfnmadd_<mode>_maskz<round_expand_name>): New
	expander.

2021-09-18  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/sse.md (avx512fmaskmodelower): Extend to support
	HF modes.
	(maskload<mode><avx512fmaskmodelower>): Ditto.
	(maskstore<mode><avx512fmaskmodelower>): Ditto.

2021-09-18  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/i386-expand.c (ix86_expand_fp_absneg_operator):
	Handle HFmode.
	(ix86_expand_copysign): Ditto.
	(ix86_expand_xorsign): Ditto.
	* config/i386/i386.c (ix86_build_const_vector): Handle HF vector
	modes.
	(ix86_build_signbit_mask): Ditto.
	(ix86_can_change_mode_class): Ditto.
	* config/i386/i386.md
	(SSEMODEF): Add HFmode.
	(ssevecmodef): Ditto.
	(<code>hf2): New define_expand.
	(*<code>hf2_1): New define_insn_and_split.
	(copysign<mode>): Extend to support HFmode under AVX512FP16.
	(xorsign<mode>): Ditto.
	* config/i386/sse.md (VFB): New mode iterator.
	(VFB_128_256): Ditto.
	(VFB_512): Ditto.
	(sseintvecmode2): Support HF vector mode.
	(<code><mode>2): Use new mode iterator.
	(*<code><mode>2): Ditto.
	(copysign<mode>3): Ditto.
	(xorsign<mode>3): Ditto.
	(<code><mode>3<mask_name>): Ditto.
	(<code><mode>3<mask_name>): Ditto.
	(<sse>_andnot<mode>3<mask_name>): Adjust for HF vector mode.
	(<sse>_andnot<mode>3<mask_name>): Ditto.
	(*<code><mode>3<mask_name>): Ditto.
	(*<code><mode>3<mask_name>): Ditto.

2021-09-18  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm512_mask_fmadd_ph):
	New intrinsic.
	(_mm512_mask3_fmadd_ph): Likewise.
	(_mm512_maskz_fmadd_ph): Likewise.
	(_mm512_fmadd_round_ph): Likewise.
	(_mm512_mask_fmadd_round_ph): Likewise.
	(_mm512_mask3_fmadd_round_ph): Likewise.
	(_mm512_maskz_fmadd_round_ph): Likewise.
	(_mm512_fnmadd_ph): Likewise.
	(_mm512_mask_fnmadd_ph): Likewise.
	(_mm512_mask3_fnmadd_ph): Likewise.
	(_mm512_maskz_fnmadd_ph): Likewise.
	(_mm512_fnmadd_round_ph): Likewise.
	(_mm512_mask_fnmadd_round_ph): Likewise.
	(_mm512_mask3_fnmadd_round_ph): Likewise.
	(_mm512_maskz_fnmadd_round_ph): Likewise.
	(_mm512_fmsub_ph): Likewise.
	(_mm512_mask_fmsub_ph): Likewise.
	(_mm512_mask3_fmsub_ph): Likewise.
	(_mm512_maskz_fmsub_ph): Likewise.
	(_mm512_fmsub_round_ph): Likewise.
	(_mm512_mask_fmsub_round_ph): Likewise.
	(_mm512_mask3_fmsub_round_ph): Likewise.
	(_mm512_maskz_fmsub_round_ph): Likewise.
	(_mm512_fnmsub_ph): Likewise.
	(_mm512_mask_fnmsub_ph): Likewise.
	(_mm512_mask3_fnmsub_ph): Likewise.
	(_mm512_maskz_fnmsub_ph): Likewise.
	(_mm512_fnmsub_round_ph): Likewise.
	(_mm512_mask_fnmsub_round_ph): Likewise.
	(_mm512_mask3_fnmsub_round_ph): Likewise.
	(_mm512_maskz_fnmsub_round_ph): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm256_fmadd_ph):
	New intrinsic.
	(_mm256_mask_fmadd_ph): Likewise.
	(_mm256_mask3_fmadd_ph): Likewise.
	(_mm256_maskz_fmadd_ph): Likewise.
	(_mm_fmadd_ph): Likewise.
	(_mm_mask_fmadd_ph): Likewise.
	(_mm_mask3_fmadd_ph): Likewise.
	(_mm_maskz_fmadd_ph): Likewise.
	(_mm256_fnmadd_ph): Likewise.
	(_mm256_mask_fnmadd_ph): Likewise.
	(_mm256_mask3_fnmadd_ph): Likewise.
	(_mm256_maskz_fnmadd_ph): Likewise.
	(_mm_fnmadd_ph): Likewise.
	(_mm_mask_fnmadd_ph): Likewise.
	(_mm_mask3_fnmadd_ph): Likewise.
	(_mm_maskz_fnmadd_ph): Likewise.
	(_mm256_fmsub_ph): Likewise.
	(_mm256_mask_fmsub_ph): Likewise.
	(_mm256_mask3_fmsub_ph): Likewise.
	(_mm256_maskz_fmsub_ph): Likewise.
	(_mm_fmsub_ph): Likewise.
	(_mm_mask_fmsub_ph): Likewise.
	(_mm_mask3_fmsub_ph): Likewise.
	(_mm_maskz_fmsub_ph): Likewise.
	(_mm256_fnmsub_ph): Likewise.
	(_mm256_mask_fnmsub_ph): Likewise.
	(_mm256_mask3_fnmsub_ph): Likewise.
	(_mm256_maskz_fnmsub_ph): Likewise.
	(_mm_fnmsub_ph): Likewise.
	(_mm_mask_fnmsub_ph): Likewise.
	(_mm_mask3_fnmsub_ph): Likewise.
	(_mm_maskz_fnmsub_ph): Likewise.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/sse.md
	(<avx512>_fmadd_<mode>_maskz<round_expand_name>): Adjust to
	support HF vector modes.
	(<sd_mask_codefor>fma_fmadd_<mode><sd_maskz_name><round_name>):
	Ditto.
	(*<sd_mask_codefor>fma_fmadd_<mode><sd_maskz_name>_bcst_1): Ditto.
	(*<sd_mask_codefor>fma_fmadd_<mode><sd_maskz_name>_bcst_2): Ditto.
	(*<sd_mask_codefor>fma_fmadd_<mode><sd_maskz_name>_bcst_3): Ditto.
	(<avx512>_fmadd_<mode>_mask<round_name>): Ditto.
	(<avx512>_fmadd_<mode>_mask3<round_name>): Ditto.
	(<avx512>_fmsub_<mode>_maskz<round_expand_name>): Ditto.
	(<sd_mask_codefor>fma_fmsub_<mode><sd_maskz_name><round_name>):
	Ditto.
	(*<sd_mask_codefor>fma_fmsub_<mode><sd_maskz_name>_bcst_1): Ditto.
	(*<sd_mask_codefor>fma_fmsub_<mode><sd_maskz_name>_bcst_2): Ditto.
	(*<sd_mask_codefor>fma_fmsub_<mode><sd_maskz_name>_bcst_3): Ditto.
	(<avx512>_fmsub_<mode>_mask<round_name>): Ditto.
	(<avx512>_fmsub_<mode>_mask3<round_name>): Ditto.
	(<sd_mask_codefor>fma_fnmadd_<mode><sd_maskz_name><round_name>):
	Ditto.
	(*<sd_mask_codefor>fma_fnmadd_<mode><sd_maskz_name>_bcst_1): Ditto.
	(*<sd_mask_codefor>fma_fnmadd_<mode><sd_maskz_name>_bcst_2): Ditto.
	(*<sd_mask_codefor>fma_fnmadd_<mode><sd_maskz_name>_bcst_3): Ditto.
	(<avx512>_fnmadd_<mode>_mask<round_name>): Ditto.
	(<avx512>_fnmadd_<mode>_mask3<round_name>): Ditto.
	(<avx512>_fnmsub_<mode>_maskz<round_expand_name>): Ditto.
	(<sd_mask_codefor>fma_fnmsub_<mode><sd_maskz_name><round_name>):
	Ditto.
	(*<sd_mask_codefor>fma_fnmsub_<mode><sd_maskz_name>_bcst_1): Ditto.
	(*<sd_mask_codefor>fma_fnmsub_<mode><sd_maskz_name>_bcst_2): Ditto.
	(*<sd_mask_codefor>fma_fnmsub_<mode><sd_maskz_name>_bcst_3): Ditto.
	(<avx512>_fnmsub_<mode>_mask<round_name>): Ditto.
	(<avx512>_fnmsub_<mode>_mask3<round_name>): Ditto.

2021-09-18  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm512_fmaddsub_ph):
	New intrinsic.
	(_mm512_mask_fmaddsub_ph): Likewise.
	(_mm512_mask3_fmaddsub_ph): Likewise.
	(_mm512_maskz_fmaddsub_ph): Likewise.
	(_mm512_fmaddsub_round_ph): Likewise.
	(_mm512_mask_fmaddsub_round_ph): Likewise.
	(_mm512_mask3_fmaddsub_round_ph): Likewise.
	(_mm512_maskz_fmaddsub_round_ph): Likewise.
	(_mm512_mask_fmsubadd_ph): Likewise.
	(_mm512_mask3_fmsubadd_ph): Likewise.
	(_mm512_maskz_fmsubadd_ph): Likewise.
	(_mm512_fmsubadd_round_ph): Likewise.
	(_mm512_mask_fmsubadd_round_ph): Likewise.
	(_mm512_mask3_fmsubadd_round_ph): Likewise.
	(_mm512_maskz_fmsubadd_round_ph): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm256_fmaddsub_ph):
	New intrinsic.
	(_mm256_mask_fmaddsub_ph): Likewise.
	(_mm256_mask3_fmaddsub_ph): Likewise.
	(_mm256_maskz_fmaddsub_ph): Likewise.
	(_mm_fmaddsub_ph): Likewise.
	(_mm_mask_fmaddsub_ph): Likewise.
	(_mm_mask3_fmaddsub_ph): Likewise.
	(_mm_maskz_fmaddsub_ph): Likewise.
	(_mm256_fmsubadd_ph): Likewise.
	(_mm256_mask_fmsubadd_ph): Likewise.
	(_mm256_mask3_fmsubadd_ph): Likewise.
	(_mm256_maskz_fmsubadd_ph): Likewise.
	(_mm_fmsubadd_ph): Likewise.
	(_mm_mask_fmsubadd_ph): Likewise.
	(_mm_mask3_fmsubadd_ph): Likewise.
	(_mm_maskz_fmsubadd_ph): Likewise.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/sse.md (VFH_SF_AVX512VL): New mode iterator.
	* (<avx512>_fmsubadd_<mode>_maskz<round_expand_name>): New expander.
	* (<avx512>_fmaddsub_<mode>_maskz<round_expand_name>): Use
	VFH_SF_AVX512VL.
	* (<sd_mask_codefor>fma_fmaddsub_<mode><sd_maskz_name><round_name>):
	Ditto.
	* (<avx512>_fmaddsub_<mode>_mask<round_name>): Ditto.
	* (<avx512>_fmaddsub_<mode>_mask3<round_name>): Ditto.
	* (<sd_mask_codefor>fma_fmsubadd_<mode><sd_maskz_name><round_name>):
	Ditto.
	* (<avx512>_fmsubadd_<mode>_mask<round_name>): Ditto.
	* (<avx512>_fmsubadd_<mode>_mask3<round_name>): Ditto.

2021-09-18  liuhongt  <hongtao.liu@intel.com>

	PR target/87767
	* config/i386/i386.c (ix86_print_operand): Handle
	V8HF/V16HF/V32HFmode.
	* config/i386/i386.h (VALID_BCST_MODE_P): Add HFmode.
	* config/i386/sse.md (avx512bcst): Remove.

2021-09-17  Martin Sebor  <msebor@redhat.com>

	* Makefile.in (OBJS): Add gimple-predicate-analysis.o.
	* tree-ssa-uninit.c (max_phi_args): Move to gimple-predicate-analysis.
	(MASK_SET_BIT, MASK_TEST_BIT, MASK_EMPTY): Same.
	(check_defs): Add comment.
	(can_skip_redundant_opnd): Update comment.
	(compute_uninit_opnds_pos): Adjust to namespace change.
	(find_pdom): Move to gimple-predicate-analysis.cc.
	(find_dom): Same.
	(struct uninit_undef_val_t): New.
	(is_non_loop_exit_postdominating): Move to gimple-predicate-analysis.cc.
	(find_control_equiv_block): Same.
	(MAX_NUM_CHAINS, MAX_CHAIN_LEN, MAX_POSTDOM_CHECK): Same.
	(MAX_SWITCH_CASES): Same.
	(compute_control_dep_chain): Same.
	(find_uninit_use): Use predicate analyzer.
	(struct pred_info): Move to gimple-predicate-analysis.
	(convert_control_dep_chain_into_preds): Same.
	(find_predicates): Same.
	(collect_phi_def_edges): Same.
	(warn_uninitialized_phi): Use predicate analyzer.
	(find_def_preds): Move to gimple-predicate-analysis.
	(dump_pred_info): Same.
	(dump_pred_chain): Same.
	(dump_predicates): Same.
	(destroy_predicate_vecs): Remove.
	(execute_late_warn_uninitialized): New.
	(get_cmp_code): Move to gimple-predicate-analysis.
	(is_value_included_in): Same.
	(value_sat_pred_p): Same.
	(find_matching_predicate_in_rest_chains): Same.
	(is_use_properly_guarded): Same.
	(prune_uninit_phi_opnds): Same.
	(find_var_cmp_const): Same.
	(use_pred_not_overlap_with_undef_path_pred): Same.
	(pred_equal_p): Same.
	(is_neq_relop_p): Same.
	(is_neq_zero_form_p): Same.
	(pred_expr_equal_p): Same.
	(is_pred_expr_subset_of): Same.
	(is_pred_chain_subset_of): Same.
	(is_included_in): Same.
	(is_superset_of): Same.
	(pred_neg_p): Same.
	(simplify_pred): Same.
	(simplify_preds_2): Same.
	(simplify_preds_3): Same.
	(simplify_preds_4): Same.
	(simplify_preds): Same.
	(push_pred): Same.
	(push_to_worklist): Same.
	(get_pred_info_from_cmp): Same.
	(is_degenerated_phi): Same.
	(normalize_one_pred_1): Same.
	(normalize_one_pred): Same.
	(normalize_one_pred_chain): Same.
	(normalize_preds): Same.
	(can_one_predicate_be_invalidated_p): Same.
	(can_chain_union_be_invalidated_p): Same.
	(uninit_uses_cannot_happen): Same.
	(pass_late_warn_uninitialized::execute): Define.
	* gimple-predicate-analysis.cc: New file.
	* gimple-predicate-analysis.h: New file.

2021-09-17  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn.c (gimple.h): Include.
	(gcn_fork_join): Emit barrier for worker-level joins.
	* omp-oacc-neuter-broadcast.cc (find_local_vars_to_propagate): Add
	writes_gang_private bitmap parameter. Set bit for blocks
	containing gang-private variable writes.
	(worker_single_simple): Don't emit barrier after predicated block.
	(worker_single_copy): Don't emit barrier if we're not broadcasting
	anything and the block contains no gang-private writes.
	(neuter_worker_single): Don't predicate blocks that only contain
	NOPs or internal marker functions.  Pass has_gang_private_write
	argument to worker_single_copy.
	(oacc_do_neutering): Add writes_gang_private bitmap handling.

2021-09-17  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn-protos.h
	(gcn_goacc_create_worker_broadcast_record): Update prototype.
	* config/gcn/gcn-tree.c (gcn_goacc_get_worker_red_decl): Use
	preallocated block of LDS memory.  Do not cache/share decls for
	reduction temporaries between invocations.
	(gcn_goacc_reduction_teardown): Unshare VAR on second use.
	(gcn_goacc_create_worker_broadcast_record): Add OFFSET parameter
	and return temporary LDS space at that offset.  Return pointer in
	"sender" case.
	* config/gcn/gcn.c (acc_lds_size, gang_private_hwm, lds_allocs):
	New global vars.
	(ACC_LDS_SIZE): Define as acc_lds_size.
	(gcn_init_machine_status): Don't initialise lds_allocated,
	lds_allocs, reduc_decls fields of machine function struct.
	(gcn_option_override): Handle default size for gang-private
	variables and -mgang-private-size option.
	(gcn_expand_prologue): Use LDS_SIZE instead of LDS_SIZE-1 when
	initialising M0_REG.
	(gcn_shared_mem_layout): New function.
	(gcn_print_lds_decl): Update comment. Use global lds_allocs map and
	gang_private_hwm variable.
	(TARGET_GOACC_SHARED_MEM_LAYOUT): Define target hook.
	* config/gcn/gcn.h (machine_function): Remove lds_allocated,
	lds_allocs, reduc_decls. Add reduction_base, reduction_limit.
	* config/gcn/gcn.opt (gang_private_size_opt): New global.
	(mgang-private-size=): New option.
	* doc/tm.texi.in (TARGET_GOACC_SHARED_MEM_LAYOUT): Place
	documentation hook.
	* doc/tm.texi: Regenerate.
	* omp-oacc-neuter-broadcast.cc (targhooks.h, diagnostic-core.h):
	Add includes.
	(build_sender_ref): Handle sender_decl being pointer.
	(worker_single_copy): Add PLACEMENT and ISOLATE_BROADCASTS
	parameters.  Pass placement argument to
	create_worker_broadcast_record hook invocations.  Handle
	sender_decl being pointer and isolate_broadcasts inserting extra
	barriers.
	(blk_offset_map_t): Add typedef.
	(neuter_worker_single): Add BLK_OFFSET_MAP parameter.  Pass
	preallocated range to worker_single_copy call.
	(dfs_broadcast_reachable_1): New function.
	(idx_decl_pair_t, used_range_vec_t): New typedefs.
	(sort_size_descending): New function.
	(addr_range): New class.
	(splay_tree_compare_addr_range, splay_tree_free_key)
	(first_fit_range, merge_ranges_1, merge_ranges): New functions.
	(execute_omp_oacc_neuter_broadcast): Rename to...
	(oacc_do_neutering): ... this.  Add BOUNDS_LO, BOUNDS_HI
	parameters.  Arrange layout of shared memory for broadcast
	operations.
	(execute_omp_oacc_neuter_broadcast): New function.
	(pass_omp_oacc_neuter_broadcast::gate): Remove num_workers==1
	handling from here.  Enable pass for all OpenACC routines in order
	to call shared memory-layout hook.
	* target.def (create_worker_broadcast_record): Add OFFSET
	parameter.
	(shared_mem_layout): New hook.

2021-09-17  Julian Brown  <julian@codesourcery.com>
	    Thomas Schwinge  <thomas@codesourcery.com>

	* omp-oacc-neuter-broadcast.cc
	(pass_omp_oacc_neuter_broadcast::gate): Disable if num_workers is
	1.
	(execute_omp_oacc_neuter_broadcast): Adjust.

2021-09-17  Andrew MacLeod  <amacleod@redhat.com>

	* value-relation.cc (class equiv_chain): Move to header file.
	(path_oracle::path_oracle): New.
	(path_oracle::~path_oracle): New.
	(path_oracle::register_relation): New.
	(path_oracle::query_relation): New.
	(path_oracle::reset_path): New.
	(path_oracle::dump): New.
	* value-relation.h (class equiv_chain): Move to here.
	(class path_oracle): New.

2021-09-17  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (ranger_cache::ranger_cache): Create a DOM
	based oracle.
	* gimple-range-fold.cc (fur_depend::register_relation): Use
	register_stmt/edge routines.
	* value-relation.cc (equiv_chain::find): Relocate from equiv_oracle.
	(equiv_oracle::equiv_oracle): Create self equivalence cache.
	(equiv_oracle::~equiv_oracle): Release same.
	(equiv_oracle::equiv_set): Return entry from self equiv cache if there
	are no equivalences.
	(equiv_oracle::find_equiv_block): Move list find to equiv_chain.
	(equiv_oracle::register_relation): Rename from register_equiv.
	(relation_chain_head::find_relation): Relocate from dom_oracle.
	(relation_oracle::register_stmt): New.
	(relation_oracle::register_edge): New.
	(dom_oracle::*): Rename from relation_oracle.
	(dom_oracle::register_relation): Adjust to call equiv_oracle.
	(dom_oracle::set_one_relation): Split from register_relation.
	(dom_oracle::register_transitives): Consolidate 2 methods.
	(dom_oracle::find_relation_block): Move core to relation_chain.
	(dom_oracle::query_relation): Rename from find_relation_dom and adjust.
	* value-relation.h (class relation_oracle): New pure virtual base.
	(class equiv_oracle): Inherit from relation_oracle and adjust.
	(class dom_oracle): Rename from old relation_oracle and adjust.

2021-09-17  Martin Sebor  <msebor@redhat.com>

	PR middle-end/102200
	* pointer-query.cc (access_ref::inform_access): Handle MIN/MAX_EXPR.
	(handle_min_max_size): Change argument.  Store original SSA_NAME for
	operands to potentially distinct (sub)objects.
	(compute_objsize_r): Adjust call to the above.

2021-09-17  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000.c (rs6000-builtins.h): New include.
	(rs6000_new_builtin_vectorized_function): New function.
	(rs6000_new_builtin_md_vectorized_function): Likewise.
	(rs6000_builtin_vectorized_function): Call
	rs6000_new_builtin_vectorized_function.
	(rs6000_builtin_md_vectorized_function): Call
	rs6000_new_builtin_md_vectorized_function.

2021-09-17  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def (ASSEMBLE_ACC): Add mmaint flag.
	(ASSEMBLE_PAIR): Likewise.
	(BUILD_ACC): Likewise.
	(DISASSEMBLE_ACC): Likewise.
	(DISASSEMBLE_PAIR): Likewise.
	(PMXVBF16GER2): Likewise.
	(PMXVBF16GER2NN): Likewise.
	(PMXVBF16GER2NP): Likewise.
	(PMXVBF16GER2PN): Likewise.
	(PMXVBF16GER2PP): Likewise.
	(PMXVF16GER2): Likewise.
	(PMXVF16GER2NN): Likewise.
	(PMXVF16GER2NP): Likewise.
	(PMXVF16GER2PN): Likewise.
	(PMXVF16GER2PP): Likewise.
	(PMXVF32GER): Likewise.
	(PMXVF32GERNN): Likewise.
	(PMXVF32GERNP): Likewise.
	(PMXVF32GERPN): Likewise.
	(PMXVF32GERPP): Likewise.
	(PMXVF64GER): Likewise.
	(PMXVF64GERNN): Likewise.
	(PMXVF64GERNP): Likewise.
	(PMXVF64GERPN): Likewise.
	(PMXVF64GERPP): Likewise.
	(PMXVI16GER2): Likewise.
	(PMXVI16GER2PP): Likewise.
	(PMXVI16GER2S): Likewise.
	(PMXVI16GER2SPP): Likewise.
	(PMXVI4GER8): Likewise.
	(PMXVI4GER8PP): Likewise.
	(PMXVI8GER4): Likewise.
	(PMXVI8GER4PP): Likewise.
	(PMXVI8GER4SPP): Likewise.
	(XVBF16GER2): Likewise.
	(XVBF16GER2NN): Likewise.
	(XVBF16GER2NP): Likewise.
	(XVBF16GER2PN): Likewise.
	(XVBF16GER2PP): Likewise.
	(XVF16GER2): Likewise.
	(XVF16GER2NN): Likewise.
	(XVF16GER2NP): Likewise.
	(XVF16GER2PN): Likewise.
	(XVF16GER2PP): Likewise.
	(XVF32GER): Likewise.
	(XVF32GERNN): Likewise.
	(XVF32GERNP): Likewise.
	(XVF32GERPN): Likewise.
	(XVF32GERPP): Likewise.
	(XVF64GER): Likewise.
	(XVF64GERNN): Likewise.
	(XVF64GERNP): Likewise.
	(XVF64GERPN): Likewise.
	(XVF64GERPP): Likewise.
	(XVI16GER2): Likewise.
	(XVI16GER2PP): Likewise.
	(XVI16GER2S): Likewise.
	(XVI16GER2SPP): Likewise.
	(XVI4GER8): Likewise.
	(XVI4GER8PP): Likewise.
	(XVI8GER4): Likewise.
	(XVI8GER4PP): Likewise.
	(XVI8GER4SPP): Likewise.
	(XXMFACC): Likewise.
	(XXMTACC): Likewise.
	(XXSETACCZ): Likewise.
	(ASSEMBLE_PAIR_V): Likewise.
	(BUILD_PAIR): Likewise.
	(DISASSEMBLE_PAIR_V): Likewise.
	(LXVP): New.
	(STXVP): New.
	* config/rs6000/rs6000-call.c (rs6000_gimple_fold_new_mma_builtin):
	Handle RS6000_BIF_LXVP and RS6000_BIF_STXVP.
	* config/rs6000/rs6000-gen-builtins.c (attrinfo): Add ismmaint.
	(parse_bif_attrs): Handle ismmaint.
	(write_decls): Add bif_mmaint_bit and bif_is_mmaint.
	(write_bif_static_init): Handle ismmaint.

2021-09-17  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-call.c (rs6000_gimple_fold_new_builtin): New
	forward decl.
	(rs6000_gimple_fold_builtin): Call rs6000_gimple_fold_new_builtin.
	(rs6000_new_builtin_valid_without_lhs): New function.
	(rs6000_gimple_fold_new_mma_builtin): Likewise.
	(rs6000_gimple_fold_new_builtin): Likewise.

2021-09-17  Thomas Schwinge  <thomas@codesourcery.com>

	* hash-table.h (hash_table<Descriptor, Lazy, Allocator>::expand):
	Destruct stale Value objects.
	* hash-map-tests.c (test_map_of_type_with_ctor_and_dtor_expand):
	Update.

2021-09-17  Roger Sayle  <roger@nextmovesoftware.com>

	PR c/102245
	* match.pd (shift optimizations): Disable recent sign-changing
	optimization for shifts by zero, these will be folded later.

2021-09-17  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def (__builtin_mffsl): Move from
	[power9] to [always].

2021-09-17  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.c (vectorizable_load): Do not frob
	stmt_info for SLP.

2021-09-17  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/i386-features.c (remove_partial_avx_dependency):
	Also check TARGET_SSE_PARTIAL_REG_FP_CONVERTS_DEPENDENCY and
	and TARGET_SSE_PARTIAL_REG_CONVERTS_DEPENDENCY before generating
	vxorps.
	* config/i386/i386.h (TARGET_SSE_PARTIAL_REG_FP_CONVERTS_DEPENDENCY):
	New.
	(TARGET_SSE_PARTIAL_REG_CONVERTS_DEPENDENCY): Likewise.
	* config/i386/i386.md (SSE FP to FP splitters): Replace
	TARGET_SSE_PARTIAL_REG_DEPENDENCY with
	TARGET_SSE_PARTIAL_REG_FP_CONVERTS_DEPENDENCY.
	(SSE INT to FP splitter): Replace TARGET_SSE_PARTIAL_REG_DEPENDENCY
	with TARGET_SSE_PARTIAL_REG_CONVERTS_DEPENDENCY.
	* config/i386/x86-tune.def
	(X86_TUNE_SSE_PARTIAL_REG_FP_CONVERTS_DEPENDENCY): New.
	(X86_TUNE_SSE_PARTIAL_REG_CONVERTS_DEPENDENCY): Likewise.

2021-09-17  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101900
	* config/i386/i386-features.c (remove_partial_avx_dependency):
	Check TARGET_USE_VECTOR_FP_CONVERTS and TARGET_USE_VECTOR_CONVERTS
	before generating vxorps.

2021-09-17  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/i386-options.c (processor_cost_table): Use
	tremont_cost for Tremont.
	* config/i386/x86-tune-costs.h (tremont_memcpy): New.
	(tremont_memset): Likewise.
	(tremont_cost): Likewise.
	* config/i386/x86-tune.def (X86_TUNE_PREFER_KNOWN_REP_MOVSB_STOSB):
	Enable for Tremont.

2021-09-17  H.J. Lu  <hjl.tools@gmail.com>

	* common/config/i386/i386-common.c: Use Haswell scheduling model
	for Tremont.
	* config/i386/i386.c (ix86_sched_init_global): Prepare for Tremont
	scheduling pass.
	* config/i386/x86-tune-sched.c (ix86_issue_rate): Change Tremont
	issue rate to 4.
	(ix86_adjust_cost): Handle Tremont.
	* config/i386/x86-tune.def (X86_TUNE_SSE_PARTIAL_REG_DEPENDENCY):
	Enable for Tremont.
	(X86_TUNE_USE_LEAVE): Likewise.
	(X86_TUNE_PUSH_MEMORY): Likewise.
	(X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES): Likewise.
	(X86_TUNE_USE_CLTD): Likewise.
	(X86_TUNE_AVOID_FALSE_DEP_FOR_BMI): Likewise.
	(X86_TUNE_AVOID_MFENCE): Likewise.
	(X86_TUNE_SSE_TYPELESS_STORES): Likewise.
	(X86_TUNE_SSE_LOAD0_BY_PXOR): Likewise.
	(X86_TUNE_ACCUMULATE_OUTGOING_ARGS): Disable for Tremont.
	(X86_TUNE_FOUR_JUMP_LIMIT): Likewise.
	(X86_TUNE_OPT_AGU): Likewise.
	(X86_TUNE_AVOID_LEA_FOR_ADDR): Likewise.
	(X86_TUNE_AVOID_MEM_OPND_FOR_CMOVE): Likewise.
	(X86_TUNE_EXPAND_ABS): Likewise.
	(X86_TUNE_SPLIT_MEM_OPND_FOR_FP_CONVERTS): Likewise.
	(X86_TUNE_SLOW_PSHUFB): Likewise.

2021-09-17  Eric Botcazou  <ebotcazou@adacore.com>

	PR rtl-optimization/102306
	* combine.c (try_combine): Abort the combination if we are about to
	duplicate volatile references.

2021-09-17  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm_undefined_ph):
	New intrinsic.
	(_mm256_undefined_ph): Likewise.
	(_mm512_undefined_ph): Likewise.
	(_mm_cvtsh_h): Likewise.
	(_mm256_cvtsh_h): Likewise.
	(_mm512_cvtsh_h): Likewise.
	(_mm512_castph_ps): Likewise.
	(_mm512_castph_pd): Likewise.
	(_mm512_castph_si512): Likewise.
	(_mm512_castph512_ph128): Likewise.
	(_mm512_castph512_ph256): Likewise.
	(_mm512_castph128_ph512): Likewise.
	(_mm512_castph256_ph512): Likewise.
	(_mm512_zextph128_ph512): Likewise.
	(_mm512_zextph256_ph512): Likewise.
	(_mm512_castps_ph): Likewise.
	(_mm512_castpd_ph): Likewise.
	(_mm512_castsi512_ph): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm_castph_ps):
	New intrinsic.
	(_mm256_castph_ps): Likewise.
	(_mm_castph_pd): Likewise.
	(_mm256_castph_pd): Likewise.
	(_mm_castph_si128): Likewise.
	(_mm256_castph_si256): Likewise.
	(_mm_castps_ph): Likewise.
	(_mm256_castps_ph): Likewise.
	(_mm_castpd_ph): Likewise.
	(_mm256_castpd_ph): Likewise.
	(_mm_castsi128_ph): Likewise.
	(_mm256_castsi256_ph): Likewise.
	(_mm256_castph256_ph128): Likewise.
	(_mm256_castph128_ph256): Likewise.
	(_mm256_zextph128_ph256): Likewise.

2021-09-17  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm_cvtsh_ss):
	New intrinsic.
	(_mm_mask_cvtsh_ss): Likewise.
	(_mm_maskz_cvtsh_ss): Likewise.
	(_mm_cvtsh_sd): Likewise.
	(_mm_mask_cvtsh_sd): Likewise.
	(_mm_maskz_cvtsh_sd): Likewise.
	(_mm_cvt_roundsh_ss): Likewise.
	(_mm_mask_cvt_roundsh_ss): Likewise.
	(_mm_maskz_cvt_roundsh_ss): Likewise.
	(_mm_cvt_roundsh_sd): Likewise.
	(_mm_mask_cvt_roundsh_sd): Likewise.
	(_mm_maskz_cvt_roundsh_sd): Likewise.
	(_mm_cvtss_sh): Likewise.
	(_mm_mask_cvtss_sh): Likewise.
	(_mm_maskz_cvtss_sh): Likewise.
	(_mm_cvtsd_sh): Likewise.
	(_mm_mask_cvtsd_sh): Likewise.
	(_mm_maskz_cvtsd_sh): Likewise.
	(_mm_cvt_roundss_sh): Likewise.
	(_mm_mask_cvt_roundss_sh): Likewise.
	(_mm_maskz_cvt_roundss_sh): Likewise.
	(_mm_cvt_roundsd_sh): Likewise.
	(_mm_mask_cvt_roundsd_sh): Likewise.
	(_mm_maskz_cvt_roundsd_sh): Likewise.
	* config/i386/i386-builtin-types.def
	(V8HF_FTYPE_V2DF_V8HF_V8HF_UQI_INT,
	V8HF_FTYPE_V4SF_V8HF_V8HF_UQI_INT,
	V2DF_FTYPE_V8HF_V2DF_V2DF_UQI_INT,
	V4SF_FTYPE_V8HF_V4SF_V4SF_UQI_INT): Add new builtin types.
	* config/i386/i386-builtin.def: Add corrresponding new builtins.
	* config/i386/i386-expand.c: Handle new builtin types.
	* config/i386/sse.md (VF48_128): New mode iterator.
	(avx512fp16_vcvtsh2<ssescalarmodesuffix><mask_scalar_name><round_saeonly_scalar_name>):
	New.
	(avx512fp16_vcvt<ssescalarmodesuffix>2sh<mask_scalar_name><round_scalar_name>):
	Ditto.

2021-09-17  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm512_cvtph_pd):
	New intrinsic.
	(_mm512_mask_cvtph_pd): Likewise.
	(_mm512_maskz_cvtph_pd): Likewise.
	(_mm512_cvt_roundph_pd): Likewise.
	(_mm512_mask_cvt_roundph_pd): Likewise.
	(_mm512_maskz_cvt_roundph_pd): Likewise.
	(_mm512_cvtxph_ps): Likewise.
	(_mm512_mask_cvtxph_ps): Likewise.
	(_mm512_maskz_cvtxph_ps): Likewise.
	(_mm512_cvtx_roundph_ps): Likewise.
	(_mm512_mask_cvtx_roundph_ps): Likewise.
	(_mm512_maskz_cvtx_roundph_ps): Likewise.
	(_mm512_cvtxps_ph): Likewise.
	(_mm512_mask_cvtxps_ph): Likewise.
	(_mm512_maskz_cvtxps_ph): Likewise.
	(_mm512_cvtx_roundps_ph): Likewise.
	(_mm512_mask_cvtx_roundps_ph): Likewise.
	(_mm512_maskz_cvtx_roundps_ph): Likewise.
	(_mm512_cvtpd_ph): Likewise.
	(_mm512_mask_cvtpd_ph): Likewise.
	(_mm512_maskz_cvtpd_ph): Likewise.
	(_mm512_cvt_roundpd_ph): Likewise.
	(_mm512_mask_cvt_roundpd_ph): Likewise.
	(_mm512_maskz_cvt_roundpd_ph): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm_cvtph_pd):
	New intrinsic.
	(_mm_mask_cvtph_pd): Likewise.
	(_mm_maskz_cvtph_pd): Likewise.
	(_mm256_cvtph_pd): Likewise.
	(_mm256_mask_cvtph_pd): Likewise.
	(_mm256_maskz_cvtph_pd): Likewise.
	(_mm_cvtxph_ps): Likewise.
	(_mm_mask_cvtxph_ps): Likewise.
	(_mm_maskz_cvtxph_ps): Likewise.
	(_mm256_cvtxph_ps): Likewise.
	(_mm256_mask_cvtxph_ps): Likewise.
	(_mm256_maskz_cvtxph_ps): Likewise.
	(_mm_cvtxps_ph): Likewise.
	(_mm_mask_cvtxps_ph): Likewise.
	(_mm_maskz_cvtxps_ph): Likewise.
	(_mm256_cvtxps_ph): Likewise.
	(_mm256_mask_cvtxps_ph): Likewise.
	(_mm256_maskz_cvtxps_ph): Likewise.
	(_mm_cvtpd_ph): Likewise.
	(_mm_mask_cvtpd_ph): Likewise.
	(_mm_maskz_cvtpd_ph): Likewise.
	(_mm256_cvtpd_ph): Likewise.
	(_mm256_mask_cvtpd_ph): Likewise.
	(_mm256_maskz_cvtpd_ph): Likewise.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/i386-builtin-types.def: Add corresponding builtin types.
	* config/i386/i386-expand.c: Handle new builtin types.
	* config/i386/sse.md
	(VF4_128_8_256): New.
	(VF48H_AVX512VL): Ditto.
	(ssePHmode): Add HF vector modes.
	(castmode): Add new convertable modes.
	(qq2phsuff): Ditto.
	(ph2pssuffix): New.
	(avx512fp16_vcvt<castmode>2ph_<mode><mask_name><round_name>): Ditto.
	(avx512fp16_vcvt<castmode>2ph_<mode>): Ditto.
	(*avx512fp16_vcvt<castmode>2ph_<mode>): Ditto.
	(avx512fp16_vcvt<castmode>2ph_<mode>_mask): Ditto.
	(*avx512fp16_vcvt<castmode>2ph_<mode>_mask): Ditto.
	(*avx512fp16_vcvt<castmode>2ph_<mode>_mask_1): Ditto.
	(avx512fp16_float_extend_ph<mode>2<mask_name><round_saeonly_name>):
	Ditto.
	(avx512fp16_float_extend_ph<mode>2<mask_name>): Ditto.
	(*avx512fp16_float_extend_ph<mode>2_load<mask_name>): Ditto.
	(avx512fp16_float_extend_phv2df2<mask_name>): Ditto.
	(*avx512fp16_float_extend_phv2df2_load<mask_name>): Ditto.

2021-09-17  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm_cvttsh_i32):
	New intrinsic.
	(_mm_cvttsh_u32): Likewise.
	(_mm_cvtt_roundsh_i32): Likewise.
	(_mm_cvtt_roundsh_u32): Likewise.
	(_mm_cvttsh_i64): Likewise.
	(_mm_cvttsh_u64): Likewise.
	(_mm_cvtt_roundsh_i64): Likewise.
	(_mm_cvtt_roundsh_u64): Likewise.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/sse.md
	(avx512fp16_fix<fixunssuffix>_trunc<mode>2<round_saeonly_name>):
	New.

2021-09-17  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm512_cvttph_epi32):
	New intrinsic.
	(_mm512_mask_cvttph_epi32): Likewise.
	(_mm512_maskz_cvttph_epi32): Likewise.
	(_mm512_cvtt_roundph_epi32): Likewise.
	(_mm512_mask_cvtt_roundph_epi32): Likewise.
	(_mm512_maskz_cvtt_roundph_epi32): Likewise.
	(_mm512_cvttph_epu32): Likewise.
	(_mm512_mask_cvttph_epu32): Likewise.
	(_mm512_maskz_cvttph_epu32): Likewise.
	(_mm512_cvtt_roundph_epu32): Likewise.
	(_mm512_mask_cvtt_roundph_epu32): Likewise.
	(_mm512_maskz_cvtt_roundph_epu32): Likewise.
	(_mm512_cvttph_epi64): Likewise.
	(_mm512_mask_cvttph_epi64): Likewise.
	(_mm512_maskz_cvttph_epi64): Likewise.
	(_mm512_cvtt_roundph_epi64): Likewise.
	(_mm512_mask_cvtt_roundph_epi64): Likewise.
	(_mm512_maskz_cvtt_roundph_epi64): Likewise.
	(_mm512_cvttph_epu64): Likewise.
	(_mm512_mask_cvttph_epu64): Likewise.
	(_mm512_maskz_cvttph_epu64): Likewise.
	(_mm512_cvtt_roundph_epu64): Likewise.
	(_mm512_mask_cvtt_roundph_epu64): Likewise.
	(_mm512_maskz_cvtt_roundph_epu64): Likewise.
	(_mm512_cvttph_epi16): Likewise.
	(_mm512_mask_cvttph_epi16): Likewise.
	(_mm512_maskz_cvttph_epi16): Likewise.
	(_mm512_cvtt_roundph_epi16): Likewise.
	(_mm512_mask_cvtt_roundph_epi16): Likewise.
	(_mm512_maskz_cvtt_roundph_epi16): Likewise.
	(_mm512_cvttph_epu16): Likewise.
	(_mm512_mask_cvttph_epu16): Likewise.
	(_mm512_maskz_cvttph_epu16): Likewise.
	(_mm512_cvtt_roundph_epu16): Likewise.
	(_mm512_mask_cvtt_roundph_epu16): Likewise.
	(_mm512_maskz_cvtt_roundph_epu16): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm_cvttph_epi32):
	New intirnsic.
	(_mm_mask_cvttph_epi32): Likewise.
	(_mm_maskz_cvttph_epi32): Likewise.
	(_mm256_cvttph_epi32): Likewise.
	(_mm256_mask_cvttph_epi32): Likewise.
	(_mm256_maskz_cvttph_epi32): Likewise.
	(_mm_cvttph_epu32): Likewise.
	(_mm_mask_cvttph_epu32): Likewise.
	(_mm_maskz_cvttph_epu32): Likewise.
	(_mm256_cvttph_epu32): Likewise.
	(_mm256_mask_cvttph_epu32): Likewise.
	(_mm256_maskz_cvttph_epu32): Likewise.
	(_mm_cvttph_epi64): Likewise.
	(_mm_mask_cvttph_epi64): Likewise.
	(_mm_maskz_cvttph_epi64): Likewise.
	(_mm256_cvttph_epi64): Likewise.
	(_mm256_mask_cvttph_epi64): Likewise.
	(_mm256_maskz_cvttph_epi64): Likewise.
	(_mm_cvttph_epu64): Likewise.
	(_mm_mask_cvttph_epu64): Likewise.
	(_mm_maskz_cvttph_epu64): Likewise.
	(_mm256_cvttph_epu64): Likewise.
	(_mm256_mask_cvttph_epu64): Likewise.
	(_mm256_maskz_cvttph_epu64): Likewise.
	(_mm_cvttph_epi16): Likewise.
	(_mm_mask_cvttph_epi16): Likewise.
	(_mm_maskz_cvttph_epi16): Likewise.
	(_mm256_cvttph_epi16): Likewise.
	(_mm256_mask_cvttph_epi16): Likewise.
	(_mm256_maskz_cvttph_epi16): Likewise.
	(_mm_cvttph_epu16): Likewise.
	(_mm_mask_cvttph_epu16): Likewise.
	(_mm_maskz_cvttph_epu16): Likewise.
	(_mm256_cvttph_epu16): Likewise.
	(_mm256_mask_cvttph_epu16): Likewise.
	(_mm256_maskz_cvttph_epu16): Likewise.
	* config/i386/i386-builtin.def: Add new builtins.
	* config/i386/sse.md
	(avx512fp16_fix<fixunssuffix>_trunc<mode>2<mask_name><round_saeonly_name>):
	New.
	(avx512fp16_fix<fixunssuffix>_trunc<mode>2<mask_name>): Ditto.
	(*avx512fp16_fix<fixunssuffix>_trunc<mode>2_load<mask_name>): Ditto.
	(avx512fp16_fix<fixunssuffix>_truncv2di2<mask_name>): Ditto.
	(avx512fp16_fix<fixunssuffix>_truncv2di2_load<mask_name>): Ditto.

2021-09-17  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm_cvtsh_i32): New intrinsic.
	(_mm_cvtsh_u32): Likewise.
	(_mm_cvt_roundsh_i32): Likewise.
	(_mm_cvt_roundsh_u32): Likewise.
	(_mm_cvtsh_i64): Likewise.
	(_mm_cvtsh_u64): Likewise.
	(_mm_cvt_roundsh_i64): Likewise.
	(_mm_cvt_roundsh_u64): Likewise.
	(_mm_cvti32_sh): Likewise.
	(_mm_cvtu32_sh): Likewise.
	(_mm_cvt_roundi32_sh): Likewise.
	(_mm_cvt_roundu32_sh): Likewise.
	(_mm_cvti64_sh): Likewise.
	(_mm_cvtu64_sh): Likewise.
	(_mm_cvt_roundi64_sh): Likewise.
	(_mm_cvt_roundu64_sh): Likewise.
	* config/i386/i386-builtin-types.def: Add corresponding builtin types.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/i386-expand.c (ix86_expand_round_builtin):
	Handle new builtin types.
	* config/i386/sse.md
	(avx512fp16_vcvtsh2<sseintconvertsignprefix>si<rex64namesuffix><round_name>):
	New define_insn.
	(avx512fp16_vcvtsh2<sseintconvertsignprefix>si<rex64namesuffix>_2): Likewise.
	(avx512fp16_vcvt<floatsuffix>si2sh<rex64namesuffix><round_name>): Likewise.

2021-09-16  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-c.c (rs6000-builtins.h): New include.
	(altivec_resolve_new_overloaded_builtin): New forward decl.
	(rs6000_new_builtin_type_compatible): New function.
	(altivec_resolve_overloaded_builtin): Call
	altivec_resolve_new_overloaded_builtin.
	(altivec_build_new_resolved_builtin): New function.
	(altivec_resolve_new_overloaded_builtin): Likewise.
	* config/rs6000/rs6000-call.c (rs6000_new_builtin_is_supported):
	Likewise.
	* config/rs6000/rs6000-gen-builtins.c (write_decls): Remove _p from
	name of rs6000_new_builtin_is_supported.

2021-09-16  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386-protos.h (ix86_decompose_address):
	Change return type to bool.
	* config/i386/i386.c (ix86_decompose_address): Ditto.

2021-09-16  Tobias Burnus  <tobias@codesourcery.com>

	PR target/102353
	* config/rs6000/t-rs6000 (build/rs6000-gen-builtins.o, build/rbtree.o):
	Added 'build/' to target, use build/%.o rule.
	(build/rs6000-gen-builtins$(build_exeext)): Add 'build/' and
	'$(build_exeext)' to target and 'build/' for the *.o files.
	(rs6000-builtins.c): Update for those changes; run rs6000-gen-builtins
	with $(RUN_GEN).

2021-09-16  Martin Jambor  <mjambor@suse.cz>

	* cgraph.c (cgraph_node::dump): Do not check caller count sums if
	the body has been removed.  Remove trailing whitespace.

2021-09-16  Richard Biener  <rguenther@suse.de>

	PR middle-end/102360
	* internal-fn.c (expand_DEFERRED_INIT): Make pattern-init
	of non-memory more robust.

2021-09-16  Daniel Cederman  <cederman@gaisler.com>

	* config/sparc/sparc-opts.h (enum sparc_processor_type): Add LEON5
	* config/sparc/sparc.c (struct processor_costs): Add LEON5 costs
	(leon5_adjust_cost): Increase cost of store with data dependency
	on ALU instruction and FPU anti-dependencies.
	(sparc_option_override): Add LEON5 costs
	(sparc_adjust_cost): Add LEON5 cost adjustments
	* config/sparc/sparc.h: Add LEON5
	* config/sparc/sparc.md: Include LEON5 scheduling information
	* config/sparc/sparc.opt: Add LEON5
	* doc/invoke.texi: Add LEON5
	* config/sparc/leon5.md: New file.

2021-09-16  Daniel Cederman  <cederman@gaisler.com>

	* config/sparc/sparc.md (stack_protect_set32): Add NOP to prevent
	sensitive sequence for B2BST errata workaround.

2021-09-16  Daniel Cederman  <cederman@gaisler.com>

	* config/sparc/sparc.c (sparc_do_work_around_errata): Do not begin
	functions with atomic instruction in the UT700 errata workaround.

2021-09-16  Daniel Cederman  <cederman@gaisler.com>

	* config/sparc/sparc.c (next_active_non_empty_insn): New function
	that returns next active non empty assembly instruction.
	(sparc_do_work_around_errata): Use new function.

2021-09-16  Daniel Cederman  <cederman@gaisler.com>

	* config/sparc/sparc.c (store_insn_p): Add predicate for store
	attributes.
	(load_insn_p): Add predicate for load attributes.
	(sparc_do_work_around_errata): Use new predicates.

2021-09-16  Andreas Larsson  <andreas@gaisler.com>

	* config/sparc/sparc.c (dump_target_flag_bits): Print bit names for
	LEON and LEON3.

2021-09-16  Martin Liska  <mliska@suse.cz>

	* config/mips/netbsd.h: Fix typo in name of a macro.

2021-09-16  liuhongt  <hongtao.liu@intel.com>

	PR middle-end/102080
	* match.pd: Check mask type when doing cond_op related gimple
	simplification.
	* tree.c (is_truth_type_for): New function.
	* tree.h (is_truth_type_for): New declaration.

2021-09-16  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm512_cvtepi32_ph): New
	intrinsic.
	(_mm512_mask_cvtepi32_ph): Likewise.
	(_mm512_maskz_cvtepi32_ph): Likewise.
	(_mm512_cvt_roundepi32_ph): Likewise.
	(_mm512_mask_cvt_roundepi32_ph): Likewise.
	(_mm512_maskz_cvt_roundepi32_ph): Likewise.
	(_mm512_cvtepu32_ph): Likewise.
	(_mm512_mask_cvtepu32_ph): Likewise.
	(_mm512_maskz_cvtepu32_ph): Likewise.
	(_mm512_cvt_roundepu32_ph): Likewise.
	(_mm512_mask_cvt_roundepu32_ph): Likewise.
	(_mm512_maskz_cvt_roundepu32_ph): Likewise.
	(_mm512_cvtepi64_ph): Likewise.
	(_mm512_mask_cvtepi64_ph): Likewise.
	(_mm512_maskz_cvtepi64_ph): Likewise.
	(_mm512_cvt_roundepi64_ph): Likewise.
	(_mm512_mask_cvt_roundepi64_ph): Likewise.
	(_mm512_maskz_cvt_roundepi64_ph): Likewise.
	(_mm512_cvtepu64_ph): Likewise.
	(_mm512_mask_cvtepu64_ph): Likewise.
	(_mm512_maskz_cvtepu64_ph): Likewise.
	(_mm512_cvt_roundepu64_ph): Likewise.
	(_mm512_mask_cvt_roundepu64_ph): Likewise.
	(_mm512_maskz_cvt_roundepu64_ph): Likewise.
	(_mm512_cvtepi16_ph): Likewise.
	(_mm512_mask_cvtepi16_ph): Likewise.
	(_mm512_maskz_cvtepi16_ph): Likewise.
	(_mm512_cvt_roundepi16_ph): Likewise.
	(_mm512_mask_cvt_roundepi16_ph): Likewise.
	(_mm512_maskz_cvt_roundepi16_ph): Likewise.
	(_mm512_cvtepu16_ph): Likewise.
	(_mm512_mask_cvtepu16_ph): Likewise.
	(_mm512_maskz_cvtepu16_ph): Likewise.
	(_mm512_cvt_roundepu16_ph): Likewise.
	(_mm512_mask_cvt_roundepu16_ph): Likewise.
	(_mm512_maskz_cvt_roundepu16_ph): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm_cvtepi32_ph): New
	intrinsic.
	(_mm_mask_cvtepi32_ph): Likewise.
	(_mm_maskz_cvtepi32_ph): Likewise.
	(_mm256_cvtepi32_ph): Likewise.
	(_mm256_mask_cvtepi32_ph): Likewise.
	(_mm256_maskz_cvtepi32_ph): Likewise.
	(_mm_cvtepu32_ph): Likewise.
	(_mm_mask_cvtepu32_ph): Likewise.
	(_mm_maskz_cvtepu32_ph): Likewise.
	(_mm256_cvtepu32_ph): Likewise.
	(_mm256_mask_cvtepu32_ph): Likewise.
	(_mm256_maskz_cvtepu32_ph): Likewise.
	(_mm_cvtepi64_ph): Likewise.
	(_mm_mask_cvtepi64_ph): Likewise.
	(_mm_maskz_cvtepi64_ph): Likewise.
	(_mm256_cvtepi64_ph): Likewise.
	(_mm256_mask_cvtepi64_ph): Likewise.
	(_mm256_maskz_cvtepi64_ph): Likewise.
	(_mm_cvtepu64_ph): Likewise.
	(_mm_mask_cvtepu64_ph): Likewise.
	(_mm_maskz_cvtepu64_ph): Likewise.
	(_mm256_cvtepu64_ph): Likewise.
	(_mm256_mask_cvtepu64_ph): Likewise.
	(_mm256_maskz_cvtepu64_ph): Likewise.
	(_mm_cvtepi16_ph): Likewise.
	(_mm_mask_cvtepi16_ph): Likewise.
	(_mm_maskz_cvtepi16_ph): Likewise.
	(_mm256_cvtepi16_ph): Likewise.
	(_mm256_mask_cvtepi16_ph): Likewise.
	(_mm256_maskz_cvtepi16_ph): Likewise.
	(_mm_cvtepu16_ph): Likewise.
	(_mm_mask_cvtepu16_ph): Likewise.
	(_mm_maskz_cvtepu16_ph): Likewise.
	(_mm256_cvtepu16_ph): Likewise.
	(_mm256_mask_cvtepu16_ph): Likewise.
	(_mm256_maskz_cvtepu16_ph): Likewise.
	* config/i386/i386-builtin-types.def: Add corresponding builtin types.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/i386-expand.c
	(ix86_expand_args_builtin): Handle new builtin types.
	(ix86_expand_round_builtin): Ditto.
	* config/i386/i386-modes.def: Declare V2HF and V6HF.
	* config/i386/sse.md (VI2H_AVX512VL): New.
	(qq2phsuff): Ditto.
	(sseintvecmode): Add HF vector modes.
	(avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode><mask_name><round_name>):
	New.
	(avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode>): Ditto.
	(*avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode>): Ditto.
	(avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode>_mask): Ditto.
	(*avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode>_mask): Ditto.
	(*avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode>_mask_1): Ditto.
	(avx512fp16_vcvt<floatsuffix>qq2ph_v2di): Ditto.
	(*avx512fp16_vcvt<floatsuffix>qq2ph_v2di): Ditto.
	(avx512fp16_vcvt<floatsuffix>qq2ph_v2di_mask): Ditto.
	(*avx512fp16_vcvt<floatsuffix>qq2ph_v2di_mask): Ditto.
	(*avx512fp16_vcvt<floatsuffix>qq2ph_v2di_mask_1): Ditto.
	* config/i386/subst.md (round_qq2phsuff): New subst_attr.

2021-09-16  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm512_cvtph_epi32):
	New intrinsic/
	(_mm512_mask_cvtph_epi32): Likewise.
	(_mm512_maskz_cvtph_epi32): Likewise.
	(_mm512_cvt_roundph_epi32): Likewise.
	(_mm512_mask_cvt_roundph_epi32): Likewise.
	(_mm512_maskz_cvt_roundph_epi32): Likewise.
	(_mm512_cvtph_epu32): Likewise.
	(_mm512_mask_cvtph_epu32): Likewise.
	(_mm512_maskz_cvtph_epu32): Likewise.
	(_mm512_cvt_roundph_epu32): Likewise.
	(_mm512_mask_cvt_roundph_epu32): Likewise.
	(_mm512_maskz_cvt_roundph_epu32): Likewise.
	(_mm512_cvtph_epi64): Likewise.
	(_mm512_mask_cvtph_epi64): Likewise.
	(_mm512_maskz_cvtph_epi64): Likewise.
	(_mm512_cvt_roundph_epi64): Likewise.
	(_mm512_mask_cvt_roundph_epi64): Likewise.
	(_mm512_maskz_cvt_roundph_epi64): Likewise.
	(_mm512_cvtph_epu64): Likewise.
	(_mm512_mask_cvtph_epu64): Likewise.
	(_mm512_maskz_cvtph_epu64): Likewise.
	(_mm512_cvt_roundph_epu64): Likewise.
	(_mm512_mask_cvt_roundph_epu64): Likewise.
	(_mm512_maskz_cvt_roundph_epu64): Likewise.
	(_mm512_cvtph_epi16): Likewise.
	(_mm512_mask_cvtph_epi16): Likewise.
	(_mm512_maskz_cvtph_epi16): Likewise.
	(_mm512_cvt_roundph_epi16): Likewise.
	(_mm512_mask_cvt_roundph_epi16): Likewise.
	(_mm512_maskz_cvt_roundph_epi16): Likewise.
	(_mm512_cvtph_epu16): Likewise.
	(_mm512_mask_cvtph_epu16): Likewise.
	(_mm512_maskz_cvtph_epu16): Likewise.
	(_mm512_cvt_roundph_epu16): Likewise.
	(_mm512_mask_cvt_roundph_epu16): Likewise.
	(_mm512_maskz_cvt_roundph_epu16): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm_cvtph_epi32):
	New intrinsic.
	(_mm_mask_cvtph_epi32): Likewise.
	(_mm_maskz_cvtph_epi32): Likewise.
	(_mm256_cvtph_epi32): Likewise.
	(_mm256_mask_cvtph_epi32): Likewise.
	(_mm256_maskz_cvtph_epi32): Likewise.
	(_mm_cvtph_epu32): Likewise.
	(_mm_mask_cvtph_epu32): Likewise.
	(_mm_maskz_cvtph_epu32): Likewise.
	(_mm256_cvtph_epu32): Likewise.
	(_mm256_mask_cvtph_epu32): Likewise.
	(_mm256_maskz_cvtph_epu32): Likewise.
	(_mm_cvtph_epi64): Likewise.
	(_mm_mask_cvtph_epi64): Likewise.
	(_mm_maskz_cvtph_epi64): Likewise.
	(_mm256_cvtph_epi64): Likewise.
	(_mm256_mask_cvtph_epi64): Likewise.
	(_mm256_maskz_cvtph_epi64): Likewise.
	(_mm_cvtph_epu64): Likewise.
	(_mm_mask_cvtph_epu64): Likewise.
	(_mm_maskz_cvtph_epu64): Likewise.
	(_mm256_cvtph_epu64): Likewise.
	(_mm256_mask_cvtph_epu64): Likewise.
	(_mm256_maskz_cvtph_epu64): Likewise.
	(_mm_cvtph_epi16): Likewise.
	(_mm_mask_cvtph_epi16): Likewise.
	(_mm_maskz_cvtph_epi16): Likewise.
	(_mm256_cvtph_epi16): Likewise.
	(_mm256_mask_cvtph_epi16): Likewise.
	(_mm256_maskz_cvtph_epi16): Likewise.
	(_mm_cvtph_epu16): Likewise.
	(_mm_mask_cvtph_epu16): Likewise.
	(_mm_maskz_cvtph_epu16): Likewise.
	(_mm256_cvtph_epu16): Likewise.
	(_mm256_mask_cvtph_epu16): Likewise.
	(_mm256_maskz_cvtph_epu16): Likewise.
	* config/i386/i386-builtin-types.def: Add new builtin types.
	* config/i386/i386-builtin.def: Add new builtins.
	* config/i386/i386-expand.c
	(ix86_expand_args_builtin): Handle new builtin types.
	(ix86_expand_round_builtin): Ditto.
	* config/i386/sse.md (sseintconvert): New.
	(ssePHmode): Ditto.
	(UNSPEC_US_FIX_NOTRUNC): Ditto.
	(sseintconvertsignprefix): Ditto.
	(avx512fp16_vcvtph2<sseintconvertsignprefix><sseintconvert>_<mode><mask_name><round_name>):
	Ditto.

2021-09-16  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h: (_mm_cvtsi16_si128):
	New intrinsic.
	(_mm_cvtsi128_si16): Likewise.
	(_mm_mask_load_sh): Likewise.
	(_mm_maskz_load_sh): Likewise.
	(_mm_mask_store_sh): Likewise.
	(_mm_move_sh): Likewise.
	(_mm_mask_move_sh): Likewise.
	(_mm_maskz_move_sh): Likewise.
	* config/i386/i386-builtin-types.def: Add corresponding builtin types.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/i386-expand.c
	(ix86_expand_special_args_builtin): Handle new builtin types.
	(ix86_expand_vector_init_one_nonzero): Adjust for FP16 target.
	* config/i386/sse.md (VI2F): New mode iterator.
	(vec_set<mode>_0): Use new mode iterator.
	(avx512f_mov<ssescalarmodelower>_mask): Adjust for HF vector mode.
	(avx512f_store<mode>_mask): Ditto.

2021-09-16  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/rs6000.opt (-mtoc-fusion): Remove.

2021-09-15  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/rs6000.c (rs6000_xcoff_encode_section_info):
	Proceed if no symbol summary or the symbol alias flag is false.

2021-09-15  Jakub Jelinek  <jakub@redhat.com>

	PR c++/88578
	PR c++/102295
	* varasm.c (output_constructor_regular_field): Instead of assertion
	that array_size_for_constructor result is equal to size of
	TREE_TYPE (local->val) in bytes, assert that the type size is greater
	or equal to array_size_for_constructor result and use type size as
	fieldsize.

2021-09-15  Martin Liska  <mliska@suse.cz>

	PR target/102351
	* config/i386/vxworks.h: Use new macro TARGET_CPU_P.

2021-09-15  Martin Liska  <mliska@suse.cz>

	PR target/102349
	* config/rs6000/rs6000.c (rs6000_xcoff_encode_section_info):
	Check that we have a symbol summary for a symbol.

2021-09-15  Richard Biener  <rguenther@suse.de>

	PR target/102348
	* config/rs6000/lynx.h: Remove undef of PREFERRED_DEBUGGING_TYPE
	to inherit from elfos.h

2021-09-15  liuhongt  <hongtao.liu@intel.com>

	PR target/102327
	* config/i386/i386-expand.c
	(ix86_expand_vector_init_interleave): Use puncklwd to pack 2
	HFmodes.
	(ix86_expand_vector_set): Use blendw instead of pinsrw.
	* config/i386/i386.c (ix86_can_change_mode_class): Adjust for
	AVX512FP16 which supports 16bit vector load.
	* config/i386/sse.md (avx512bw_interleave_highv32hi<mask_name>):
	Rename to ..
	(avx512bw_interleave_high<mode><mask_name>): .. this, and
	extend to V32HFmode.
	(avx2_interleave_highv16hi<mask_name>): Rename to ..
	(avx2_interleave_high<mode><mask_name>): .. this, and extend
	to V16HFmode.
	(vec_interleave_highv8hi<mask_name>): Rename to ..
	(vec_interleave_high<mode><mask_name>): .. this, and extend to V8HFmode.
	(<mask_codefor>avx512bw_interleave_lowv32hi<mask_name>):
	Rename to ..
	(<mask_codefor>avx512bw_interleave_low<mode><mask_name>):
	this, and extend to V32HFmode.
	(avx2_interleave_lowv16hi<mask_name>): Rename to ..
	(avx2_interleave_low<mode><mask_name>): .. this, and extend to V16HFmode.
	(vec_interleave_lowv8hi<mask_name>): Rename to ..
	(vec_interleave_low<mode><mask_name>): .. this, and extend to V8HFmode.
	(sse4_1_pblendw): Rename to ..
	(sse4_1_pblend<blendsuf>): .. this, and extend to V8HFmode.
	(avx2_pblendph): New define_expand.
	(<sse2p4_1>_pinsr<ssemodesuffix>): Refactor, use
	sseintmodesuffix instead of ssemodesuffix.
	(blendsuf): New mode attr.

2021-09-15  Richard Biener  <rguenther@suse.de>

	* tree-vectorizer.h (dr_misalignment): Move out of line.
	(dr_target_alignment): New.
	(DR_TARGET_ALIGNMENT): Wrap dr_target_alignment.
	(set_dr_target_alignment): New.
	(SET_DR_TARGET_ALIGNMENT): Wrap set_dr_target_alignment.
	* tree-vect-data-refs.c (dr_misalignment): Compute and
	return the group members misalignment.
	(vect_compute_data_ref_alignment): Use SET_DR_TARGET_ALIGNMENT.
	(vect_analyze_data_refs_alignment): Compute alignment only
	for the first element of a DR group.
	(vect_slp_analyze_node_alignment): Likewise.

2021-09-15  Hongyu Wang  <hongyu.wang@intel.com>

	* config/i386/avx512fp16intrin.h: Adjust all builtin calls.
	* config/i386/avx512fp16vlintrin.h: Likewise.
	* config/i386/i386-builtin.def: Adjust builtin name and
	enumeration to match AVX512F style.

2021-09-15  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102318
	* tree-vect-loop.c (vect_transform_cycle_phi): Revert
	previous change and do the mode conversion separately from
	the sign conversion.

2021-09-15  Hongtao Liu  <hongtao.liu@intel.com>
	    Peter Cordes  <peter@cordes.ca>

	PR target/91103
	* config/i386/sse.md (extract_suf): Add V8SF/V8SI/V4DF/V4DI.
	(*vec_extract<mode><ssescalarmodelower>_valign): Output
	vextract{i,f}{32x4,64x2} instruction when byte_offset % 16 ==
	0.

2021-09-15  Richard Biener  <rguenther@suse.de>

	* config.gcc: Remove vax-*-openbsd* configuration.

2021-09-15  Richard Biener  <rguenther@suse.de>

	* config.gcc: Remove m68k-openbsd.

2021-09-15  Max Filippov  <jcmvbkbc@gmail.com>

	PR target/102336
	* config/xtensa/t-xtensa (TM_H): Add include/xtensa-config.h.

2021-09-14  Peter Bergner  <bergner@linux.ibm.com>

	* config/rs6000/mma.md (unspec): Delete UNSPEC_MMA_XXSETACCZ.
	(unspecv): Add UNSPECV_MMA_XXSETACCZ.
	(*mma_xxsetaccz): Delete.
	(mma_xxsetaccz): Change to define_insn.  Remove operand 1.
	Use UNSPECV_MMA_XXSETACCZ.  Update comment.
	* config/rs6000/rs6000.c (rs6000_rtx_costs): Use UNSPECV_MMA_XXSETACCZ.

2021-09-14  Iain Sandoe  <iain@sandoe.co.uk>

	* Makefile.in: Remove variables related to applying no-PIE
	to the exes on $build.
	* configure: Regenerate.
	* configure.ac: Remove configuration related to applying
	no-PIE to the exes on $build.

2021-09-14  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (doloop_end): Add missing mode.
	(loop_end): Likewise.

2021-09-14  Jakub Jelinek  <jakub@redhat.com>

	* gimplify.c (goa_stabilize_expr): Add depth argument, propagate
	it to recursive calls, for depth above 7 just gimplify or return.
	Perform a test even for MODIFY_EXPR, ADDR_EXPR, COMPOUND_EXPR with
	__builtin_clear_padding and TARGET_EXPR.
	(gimplify_omp_atomic): Adjust goa_stabilize_expr callers.

2021-09-14  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm_fpclass_sh_mask):
	New intrinsic.
	(_mm_mask_fpclass_sh_mask): Likewise.
	(_mm512_mask_fpclass_ph_mask): Likewise.
	(_mm512_fpclass_ph_mask): Likewise.
	(_mm_getexp_sh): Likewise.
	(_mm_mask_getexp_sh): Likewise.
	(_mm_maskz_getexp_sh): Likewise.
	(_mm512_getexp_ph): Likewise.
	(_mm512_mask_getexp_ph): Likewise.
	(_mm512_maskz_getexp_ph): Likewise.
	(_mm_getexp_round_sh): Likewise.
	(_mm_mask_getexp_round_sh): Likewise.
	(_mm_maskz_getexp_round_sh): Likewise.
	(_mm512_getexp_round_ph): Likewise.
	(_mm512_mask_getexp_round_ph): Likewise.
	(_mm512_maskz_getexp_round_ph): Likewise.
	(_mm_getmant_sh): Likewise.
	(_mm_mask_getmant_sh): Likewise.
	(_mm_maskz_getmant_sh): Likewise.
	(_mm512_getmant_ph): Likewise.
	(_mm512_mask_getmant_ph): Likewise.
	(_mm512_maskz_getmant_ph): Likewise.
	(_mm_getmant_round_sh): Likewise.
	(_mm_mask_getmant_round_sh): Likewise.
	(_mm_maskz_getmant_round_sh): Likewise.
	(_mm512_getmant_round_ph): Likewise.
	(_mm512_mask_getmant_round_ph): Likewise.
	(_mm512_maskz_getmant_round_ph): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm_mask_fpclass_ph_mask):
	New intrinsic.
	(_mm_fpclass_ph_mask): Likewise.
	(_mm256_mask_fpclass_ph_mask): Likewise.
	(_mm256_fpclass_ph_mask): Likewise.
	(_mm256_getexp_ph): Likewise.
	(_mm256_mask_getexp_ph): Likewise.
	(_mm256_maskz_getexp_ph): Likewise.
	(_mm_getexp_ph): Likewise.
	(_mm_mask_getexp_ph): Likewise.
	(_mm_maskz_getexp_ph): Likewise.
	(_mm256_getmant_ph): Likewise.
	(_mm256_mask_getmant_ph): Likewise.
	(_mm256_maskz_getmant_ph): Likewise.
	(_mm_getmant_ph): Likewise.
	(_mm_mask_getmant_ph): Likewise.
	(_mm_maskz_getmant_ph): Likewise.
	* config/i386/i386-builtin-types.def: Add corresponding builtin types.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/i386-expand.c
	(ix86_expand_args_builtin): Handle new builtin types.
	(ix86_expand_round_builtin): Ditto.
	* config/i386/sse.md (vecmemsuffix): Add HF vector modes.
	(<avx512>_getexp<mode><mask_name><round_saeonly_name>): Adjust
	to support HF vector modes.
	(avx512f_sgetexp<mode><mask_scalar_name><round_saeonly_scalar_name):
	Ditto.
	(avx512dq_fpclass<mode><mask_scalar_merge_name>): Ditto.
	(avx512dq_vmfpclass<mode><mask_scalar_merge_name>): Ditto.
	(<avx512>_getmant<mode><mask_name><round_saeonly_name>): Ditto.
	(avx512f_vgetmant<mode><mask_scalar_name><round_saeonly_scalar_name>):
	Ditto.

2021-09-14  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm512_reduce_ph):
	New intrinsic.
	(_mm512_mask_reduce_ph): Likewise.
	(_mm512_maskz_reduce_ph): Likewise.
	(_mm512_reduce_round_ph): Likewise.
	(_mm512_mask_reduce_round_ph): Likewise.
	(_mm512_maskz_reduce_round_ph): Likewise.
	(_mm_reduce_sh): Likewise.
	(_mm_mask_reduce_sh): Likewise.
	(_mm_maskz_reduce_sh): Likewise.
	(_mm_reduce_round_sh): Likewise.
	(_mm_mask_reduce_round_sh): Likewise.
	(_mm_maskz_reduce_round_sh): Likewise.
	(_mm512_roundscale_ph): Likewise.
	(_mm512_mask_roundscale_ph): Likewise.
	(_mm512_maskz_roundscale_ph): Likewise.
	(_mm512_roundscale_round_ph): Likewise.
	(_mm512_mask_roundscale_round_ph): Likewise.
	(_mm512_maskz_roundscale_round_ph): Likewise.
	(_mm_roundscale_sh): Likewise.
	(_mm_mask_roundscale_sh): Likewise.
	(_mm_maskz_roundscale_sh): Likewise.
	(_mm_roundscale_round_sh): Likewise.
	(_mm_mask_roundscale_round_sh): Likewise.
	(_mm_maskz_roundscale_round_sh): Likewise.
	* config/i386/avx512fp16vlintrin.h: (_mm_reduce_ph):
	New intrinsic.
	(_mm_mask_reduce_ph): Likewise.
	(_mm_maskz_reduce_ph): Likewise.
	(_mm256_reduce_ph): Likewise.
	(_mm256_mask_reduce_ph): Likewise.
	(_mm256_maskz_reduce_ph): Likewise.
	(_mm_roundscale_ph): Likewise.
	(_mm_mask_roundscale_ph): Likewise.
	(_mm_maskz_roundscale_ph): Likewise.
	(_mm256_roundscale_ph): Likewise.
	(_mm256_mask_roundscale_ph): Likewise.
	(_mm256_maskz_roundscale_ph): Likewise.
	* config/i386/i386-builtin-types.def: Add corresponding builtin types.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/i386-expand.c
	(ix86_expand_args_builtin): Handle new builtin types.
	(ix86_expand_round_builtin): Ditto.
	* config/i386/sse.md (<mask_codefor>reducep<mode><mask_name>):
	Renamed to ...
	(<mask_codefor>reducep<mode><mask_name><round_saeonly_name>):
	... this, and adjust for round operands.
	(reduces<mode><mask_scalar_name>): Likewise, with ...
	(reduces<mode><mask_scalar_name><round_saeonly_scalar_name):
	... this.
	(<avx512>_rndscale<mode><mask_name><round_saeonly_name>):
	Adjust for HF vector modes.
	(avx512f_rndscale<mode><mask_scalar_name><round_saeonly_scalar_name>):
	Ditto.
	(*avx512f_rndscale<mode><round_saeonly_name>): Ditto.

2021-09-14  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h: (_mm512_rcp_ph):
	New intrinsic.
	(_mm512_mask_rcp_ph): Likewise.
	(_mm512_maskz_rcp_ph): Likewise.
	(_mm_rcp_sh): Likewise.
	(_mm_mask_rcp_sh): Likewise.
	(_mm_maskz_rcp_sh): Likewise.
	(_mm512_scalef_ph): Likewise.
	(_mm512_mask_scalef_ph): Likewise.
	(_mm512_maskz_scalef_ph): Likewise.
	(_mm512_scalef_round_ph): Likewise.
	(_mm512_mask_scalef_round_ph): Likewise.
	(_mm512_maskz_scalef_round_ph): Likewise.
	(_mm_scalef_sh): Likewise.
	(_mm_mask_scalef_sh): Likewise.
	(_mm_maskz_scalef_sh): Likewise.
	(_mm_scalef_round_sh): Likewise.
	(_mm_mask_scalef_round_sh): Likewise.
	(_mm_maskz_scalef_round_sh): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm_rcp_ph):
	New intrinsic.
	(_mm256_rcp_ph): Likewise.
	(_mm_mask_rcp_ph): Likewise.
	(_mm256_mask_rcp_ph): Likewise.
	(_mm_maskz_rcp_ph): Likewise.
	(_mm256_maskz_rcp_ph): Likewise.
	(_mm_scalef_ph): Likewise.
	(_mm256_scalef_ph): Likewise.
	(_mm_mask_scalef_ph): Likewise.
	(_mm256_mask_scalef_ph): Likewise.
	(_mm_maskz_scalef_ph): Likewise.
	(_mm256_maskz_scalef_ph): Likewise.
	* config/i386/i386-builtin.def: Add new builtins.
	* config/i386/sse.md (VFH_AVX512VL): New.
	(avx512fp16_rcp<mode>2<mask_name>): Ditto.
	(avx512fp16_vmrcpv8hf2<mask_scalar_name>): Ditto.
	(avx512f_vmscalef<mode><mask_scalar_name><round_scalar_name>):
	Adjust to support HF vector modes.
	(<avx512>_scalef<mode><mask_name><round_name>): Ditto.

2021-09-14  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h: (_mm512_sqrt_ph):
	New intrinsic.
	(_mm512_mask_sqrt_ph): Likewise.
	(_mm512_maskz_sqrt_ph): Likewise.
	(_mm512_sqrt_round_ph): Likewise.
	(_mm512_mask_sqrt_round_ph): Likewise.
	(_mm512_maskz_sqrt_round_ph): Likewise.
	(_mm512_rsqrt_ph): Likewise.
	(_mm512_mask_rsqrt_ph): Likewise.
	(_mm512_maskz_rsqrt_ph): Likewise.
	(_mm_rsqrt_sh): Likewise.
	(_mm_mask_rsqrt_sh): Likewise.
	(_mm_maskz_rsqrt_sh): Likewise.
	(_mm_sqrt_sh): Likewise.
	(_mm_mask_sqrt_sh): Likewise.
	(_mm_maskz_sqrt_sh): Likewise.
	(_mm_sqrt_round_sh): Likewise.
	(_mm_mask_sqrt_round_sh): Likewise.
	(_mm_maskz_sqrt_round_sh): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm_sqrt_ph): New intrinsic.
	(_mm256_sqrt_ph): Likewise.
	(_mm_mask_sqrt_ph): Likewise.
	(_mm256_mask_sqrt_ph): Likewise.
	(_mm_maskz_sqrt_ph): Likewise.
	(_mm256_maskz_sqrt_ph): Likewise.
	(_mm_rsqrt_ph): Likewise.
	(_mm256_rsqrt_ph): Likewise.
	(_mm_mask_rsqrt_ph): Likewise.
	(_mm256_mask_rsqrt_ph): Likewise.
	(_mm_maskz_rsqrt_ph): Likewise.
	(_mm256_maskz_rsqrt_ph): Likewise.
	* config/i386/i386-builtin-types.def: Add corresponding builtin types.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/i386-expand.c
	(ix86_expand_args_builtin): Handle new builtins.
	(ix86_expand_round_builtin): Ditto.
	* config/i386/sse.md (VF_AVX512FP16VL): New.
	(sqrt<mode>2): Adjust for HF vector modes.
	(<sse>_sqrt<mode>2<mask_name><round_name>): Likewise.
	(<sse>_vmsqrt<mode>2<mask_scalar_name><round_scalar_name>):
	Likewise.
	(<sse>_rsqrt<mode>2<mask_name>): New.
	(avx512fp16_vmrsqrtv8hf2<mask_scalar_name>): Likewise.

2021-09-13  Thomas Schwinge  <thomas@codesourcery.com>

	PR bootstrap/101574
	* diagnostic-spec.c (warning_suppressed_at, copy_warning): Handle
	'RESERVED_LOCATION_P' locations.
	* warning-control.cc (get_nowarn_spec, suppress_warning)
	(copy_warning): Likewise.

2021-09-13  Thomas Schwinge  <thomas@codesourcery.com>

	* diagnostic-spec.h (typedef xint_hash_t): Use 'location_t' instead of...
	(typedef key_type_t): ... this.  Remove.
	(nowarn_map): Document.
	* diagnostic-spec.c (nowarn_map): Likewise.
	* warning-control.cc (convert_to_key): Evolve functions into...
	(get_location): ... these.  Adjust all users.

2021-09-13  Thomas Schwinge  <thomas@codesourcery.com>

	* warning-control.cc (copy_warning): Remove 'nowarn_map' setup.

2021-09-13  Jason Merrill  <jason@redhat.com>

	* params.opt: Add destructive-interference-size and
	constructive-interference-size.
	* doc/invoke.texi: Document them.
	* config/aarch64/aarch64.c (aarch64_override_options_internal):
	Set them.
	* config/arm/arm.c (arm_option_override): Set them.
	* config/i386/i386-options.c (ix86_option_override_internal):
	Set them.

2021-09-13  Martin Liska  <mliska@suse.cz>
	    H.J. Lu  <hjl.tools@gmail.com>

	PR target/101696
	* common/config/i386/cpuinfo.h (cpu_indicator_init): Add support
	for x86-64 micro levels for __builtin_cpu_supports.
	* common/config/i386/i386-cpuinfo.h (enum feature_priority):
	Add priorities for the micro-arch levels.
	(enum processor_features): Add new features.
	* common/config/i386/i386-isas.h: Add micro-arch features.
	* config/i386/i386-builtins.c (get_builtin_code_for_version):
	Support the micro-arch levels by callsing
	__builtin_cpu_supports.
	* doc/extend.texi: Document that the levels are support by
	  __builtin_cpu_supports.

2021-09-13  Andrew Pinski  <apinski@marvell.com>

	PR target/95969
	* config/aarch64/aarch64-builtins.c (aarch64_fold_builtin_lane_check):
	New function.
	(aarch64_general_fold_builtin): Handle AARCH64_SIMD_BUILTIN_LANE_CHECK.
	(aarch64_general_gimple_fold_builtin): Likewise.

2021-09-13  Andrew Pinski  <apinski@marvell.com>

	* config.gcc: Add m32r-*-linux* and m32rle-*-linux*
	to the Unsupported targets list.
	Remove support for m32r-*-linux* and m32rle-*-linux*.
	* config/m32r/linux.h: Removed.
	* config/m32r/t-linux: Removed.

2021-09-13  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	PR target/102252
	* config/aarch64/aarch64.c (aarch64_classify_address): Don't allow
	register index for SVE predicate modes.

2021-09-13  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c
	(back_threader_profitability::profitable_path_p): Remove FSM
	references.
	(back_threader_registry::register_path): Same.
	* tree-ssa-threadedge.c
	(jump_threader::simplify_control_stmt_condition): Same.
	* tree-ssa-threadupdate.c (jt_path_registry::jt_path_registry):
	Add backedge_threads argument.
	(fwd_jt_path_registry::fwd_jt_path_registry): Pass
	backedge_threads argument.
	(back_jt_path_registry::back_jt_path_registry):  Same.
	(dump_jump_thread_path): Adjust for FSM removal.
	(back_jt_path_registry::rewire_first_differing_edge): Same.
	(back_jt_path_registry::adjust_paths_after_duplication): Same.
	(back_jt_path_registry::update_cfg): Same.
	(jt_path_registry::register_jump_thread): Same.
	* tree-ssa-threadupdate.h (enum jump_thread_edge_type): Remove
	EDGE_FSM_THREAD.
	(class back_jt_path_registry): Add backedge_threads to
	constructor.

2021-09-13  Martin Liska  <mliska@suse.cz>

	PR c++/101331
	* asan.h (sanitize_coverage_p): Handle when fn == NULL.

2021-09-13  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101935
	* config/i386/i386.h (TARGET_AVX256_MOVE_BY_PIECES): New.
	(TARGET_AVX256_STORE_BY_PIECES): Likewise.
	(MOVE_MAX): Check TARGET_AVX256_MOVE_BY_PIECES and
	TARGET_AVX256_STORE_BY_PIECES instead of
	TARGET_AVX256_SPLIT_UNALIGNED_LOAD and
	TARGET_AVX256_SPLIT_UNALIGNED_STORE.
	(STORE_MAX_PIECES): Check TARGET_AVX256_STORE_BY_PIECES instead
	of TARGET_AVX256_SPLIT_UNALIGNED_STORE.
	* config/i386/x86-tune.def (X86_TUNE_AVX256_MOVE_BY_PIECES): New.
	(X86_TUNE_AVX256_STORE_BY_PIECES): Likewise.

2021-09-13  liuhongt  <hongtao.liu@intel.com>

	PR bootstrap/102302
	* expmed.c (extract_bit_field_using_extv): Use
	gen_lowpart_if_possible instead of gen_lowpart to avoid ICE.

2021-09-13  Aldy Hernandez  <aldyh@redhat.com>

	* Makefile.in (OBJS): Add value-pointer-equiv.o.
	* gimple-ssa-evrp.c (class ssa_equiv_stack): Move to
	value-pointer-equiv.*.
	(ssa_equiv_stack::ssa_equiv_stack): Same.
	(ssa_equiv_stack::enter): Same.
	(ssa_equiv_stack::leave): Same.
	(ssa_equiv_stack::push_replacement): Same.
	(ssa_equiv_stack::get_replacement): Same.
	(is_pointer_ssa): Same.
	(class pointer_equiv_analyzer): Same.
	(pointer_equiv_analyzer::pointer_equiv_analyzer): Same.
	(pointer_equiv_analyzer::~pointer_equiv_analyzer): Same.
	(pointer_equiv_analyzer::set_global_equiv): Same.
	(pointer_equiv_analyzer::set_cond_equiv): Same.
	(pointer_equiv_analyzer::get_equiv): Same.
	(pointer_equiv_analyzer::enter): Same.
	(pointer_equiv_analyzer::leave): Same.
	(pointer_equiv_analyzer::get_equiv_expr): Same.
	(pta_valueize): Same.
	(pointer_equiv_analyzer::visit_stmt): Same.
	(pointer_equiv_analyzer::visit_edge): Same.
	(hybrid_folder::value_of_expr): Same.
	(hybrid_folder::value_on_edge): Same.
	* value-pointer-equiv.cc: New file.
	* value-pointer-equiv.h: New file.

2021-09-13  Richard Earnshaw  <rearnsha@arm.com>

	PR target/102125
	* gimple-fold.c (gimple_fold_builtin_memory_op): Allow folding
	memcpy if the size is not more than MOVE_MAX * MOVE_RATIO.

2021-09-13  Richard Earnshaw  <rearnsha@arm.com>

	PR target/102125
	* config/arm/arm.md (movmisaligndi): New define_expand.
	* config/arm/vec-common.md (movmisalign<mode>): Iterate over VDQ mode.

2021-09-13  Richard Earnshaw  <rearnsha@arm.com>

	PR target/102125
	* emit-rtl.c (gen_highpart): Use adjust_address to handle
	MEM rather than calling simplify_gen_subreg.

2021-09-13  Jan-Benedict Glaw  <jbglaw@ług-owl.de>

	* config/alpha/vms.h (INIT_CUMULATIVE_ARGS): Wrap multi-statment
	define into a block.

2021-09-13  Richard Biener  <rguenther@suse.de>

	* config/darwin.h (DARWIN_PREFER_DWARF): Do not define.
	* config/i386/darwin.h (PREFERRED_DEBUGGING_TYPE): Do not
	change based on DARWIN_PREFER_DWARF not being defined.

2021-09-13  Richard Biener  <rguenther@suse.de>

	* config/i386/lynx.h: Remove undef of PREFERRED_DEBUGGING_TYPE
	to inherit from elfos.h

2021-09-13  Richard Biener  <rguenther@suse.de>

	* config.gcc: Add cr16-*-* to the list of obsoleted targets.

2021-09-13  Richard Biener  <rguenther@suse.de>

	* config/avr/elf.h (PREFERRED_DEBUGGING_TYPE): Remove
	override, pick up DWARF2_DEBUG define from elfos.h

2021-09-13  Richard Biener  <rguenther@suse.de>

	* config/rx/rx.h (PREFERRED_DEBUGGING_TYPE): Always define to
	DWARF2_DEBUG.

2021-09-13  Richard Biener  <rguenther@suse.de>

	* config/alpha/vms.h (PREFERRED_DEBUGGING_TYPE): Define to
	DWARF2_DEBUG.

2021-09-13  Richard Biener  <rguenther@suse.de>

	* config/i386/cygming.h: Always default to DWARF2 debugging.
	Do not define DBX_DEBUGGING_INFO, that's done via dbxcoff.h
	already.
	* doc/install.texi: Document binutils 2.16 as minimum
	requirement for mingw.

2021-09-13  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/rs6000.c (struct rs6000_cost_data): New members
	nstmts, nloads and extra_ctor_cost.
	(rs6000_density_test): Add load density related heuristics.  Do
	extra costing on vector construction statements if need.
	(rs6000_init_cost): Init new members.
	(rs6000_update_target_cost_per_stmt): New function.
	(rs6000_add_stmt_cost): Factor vect_nonmem hunk out to function
	rs6000_update_target_cost_per_stmt and call it.

2021-09-13  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/rs6000.c (struct rs6000_cost_data): Remove typedef.
	(rs6000_init_cost): Adjust.

2021-09-13  liuhongt  <hongtao.liu@intel.com>

	* config/i386/i386.md: (UNSPEC_COPYSIGN): Remove.
	(UNSPEC_XORSIGN): Ditto.

2021-09-12  Roger Sayle  <roger@nextmovesoftware.com>

	* expr.c (convert_move): Preserve SUBREG_PROMOTED_VAR_P when
	creating a (wider) partial subreg from a SUBREG_PROMOTED_VAR_P
	subreg.

2021-09-11  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (class back_threader_registry): Use
	back_jt_path_registry.
	* tree-ssa-threadedge.c (jump_threader::jump_threader): Use
	fwd_jt_path_registry.
	* tree-ssa-threadedge.h (class jump_threader): Same..
	* tree-ssa-threadupdate.c
	(jump_thread_path_registry::jump_thread_path_registry): Rename...
	(jt_path_registry::jt_path_registry): ...to this.
	(jump_thread_path_registry::~jump_thread_path_registry): Rename...
	(jt_path_registry::~jt_path_registry): ...this.
	(fwd_jt_path_registry::fwd_jt_path_registry): New.
	(fwd_jt_path_registry::~fwd_jt_path_registry): New.
	(jump_thread_path_registry::allocate_thread_edge): Rename...
	(jt_path_registry::allocate_thread_edge): ...to this.
	(jump_thread_path_registry::allocate_thread_path): Rename...
	(jt_path_registry::allocate_thread_path): ...to this.
	(jump_thread_path_registry::lookup_redirection_data): Rename...
	(fwd_jt_path_registry::lookup_redirection_data): ...to this.
	(jump_thread_path_registry::thread_block_1): Rename...
	(fwd_jt_path_registry::thread_block_1): ...to this.
	(jump_thread_path_registry::thread_block): Rename...
	(fwd_jt_path_registry::thread_block): ...to this.
	(jt_path_registry::thread_through_loop_header): Rename...
	(fwd_jt_path_registry::thread_through_loop_header): ...to this.
	(jump_thread_path_registry::mark_threaded_blocks): Rename...
	(fwd_jt_path_registry::mark_threaded_blocks): ...to this.
	(jump_thread_path_registry::debug_path): Rename...
	(jt_path_registry::debug_path): ...to this.
	(jump_thread_path_registry::dump): Rename...
	(jt_path_registry::debug): ...to this.
	(jump_thread_path_registry::rewire_first_differing_edge): Rename...
	(back_jt_path_registry::rewire_first_differing_edge): ...to this.
	(jump_thread_path_registry::adjust_paths_after_duplication): Rename...
	(back_jt_path_registry::adjust_paths_after_duplication): ...to this.
	(jump_thread_path_registry::duplicate_thread_path): Rename...
	(back_jt_path_registry::duplicate_thread_path): ...to this.  Also,
	drop ill-formed candidates.
	(jump_thread_path_registry::remove_jump_threads_including): Rename...
	(fwd_jt_path_registry::remove_jump_threads_including): ...to this.
	(jt_path_registry::thread_through_all_blocks): New.
	(back_jt_path_registry::update_cfg): New.
	(fwd_jt_path_registry::update_cfg): New.
	(jump_thread_path_registry::register_jump_thread): Rename...
	(jt_path_registry::register_jump_thread): ...to this.
	* tree-ssa-threadupdate.h (class jump_thread_path_registry):
	Abstract to...
	(class jt_path_registry): ...here.
	(class fwd_jt_path_registry): New.
	(class back_jt_path_registry): New.

2021-09-10  liuhongt  <hongtao.liu@intel.com>

	Revert:
	2021-09-01  liuhongt  <hongtao.liu@intel.com>

	* emit-rtl.c (validate_subreg): Get rid of all float-int
	special cases.

2021-09-10  Jakub Jelinek  <jakub@redhat.com>

	* tree-core.h (enum omp_memory_order): Add OMP_MEMORY_ORDER_MASK,
	OMP_FAIL_MEMORY_ORDER_UNSPECIFIED, OMP_FAIL_MEMORY_ORDER_RELAXED,
	OMP_FAIL_MEMORY_ORDER_ACQUIRE, OMP_FAIL_MEMORY_ORDER_RELEASE,
	OMP_FAIL_MEMORY_ORDER_ACQ_REL, OMP_FAIL_MEMORY_ORDER_SEQ_CST and
	OMP_FAIL_MEMORY_ORDER_MASK enumerators.
	(OMP_FAIL_MEMORY_ORDER_SHIFT): Define.
	* gimple-pretty-print.c (dump_gimple_omp_atomic_load,
	dump_gimple_omp_atomic_store): Print [weak] for weak atomic
	load/store.
	* gimple.h (enum gf_mask): Change GF_OMP_ATOMIC_MEMORY_ORDER
	to 6-bit mask, adjust GF_OMP_ATOMIC_NEED_VALUE value and add
	GF_OMP_ATOMIC_WEAK.
	(gimple_omp_atomic_weak_p, gimple_omp_atomic_set_weak): New inline
	functions.
	* tree.h (OMP_ATOMIC_WEAK): Define.
	* tree-pretty-print.c (dump_omp_atomic_memory_order): Adjust for
	fail memory order being encoded in the same enum and also print
	fail clause if present.
	(dump_generic_node): Print weak clause if OMP_ATOMIC_WEAK.
	* gimplify.c (goa_stabilize_expr): Add target_expr and rhs arguments,
	handle pre_p == NULL case as a test mode that only returns value
	but doesn't change gimplify nor change anything otherwise, adjust
	recursive calls, add MODIFY_EXPR, ADDR_EXPR, COND_EXPR, TARGET_EXPR
	and CALL_EXPR handling, adjust COMPOUND_EXPR handling for
	__builtin_clear_padding calls, for !rhs gimplify as lvalue rather
	than rvalue.
	(gimplify_omp_atomic): Adjust goa_stabilize_expr caller.  Handle
	COND_EXPR rhs.  Set weak flag on gimple load/store for
	OMP_ATOMIC_WEAK.
	* omp-expand.c (omp_memory_order_to_fail_memmodel): New function.
	(omp_memory_order_to_memmodel): Adjust for fail clause encoded
	in the same enum.
	(expand_omp_atomic_cas): New function.
	(expand_omp_atomic_pipeline): Use omp_memory_order_to_fail_memmodel
	function.
	(expand_omp_atomic): Attempt to optimize atomic compare and exchange
	using expand_omp_atomic_cas.

2021-09-10  Aldy Hernandez  <aldyh@redhat.com>
	    Michael Matz  <matz@suse.de>

	* tree-pass.h (PROP_loop_opts_done): New.
	* gimple-range-path.cc (path_range_query::internal_range_of_expr):
	Intersect with global range.
	* tree-ssa-loop.c (tree_ssa_loop_done): Set PROP_loop_opts_done.
	* tree-ssa-threadbackward.c
	(back_threader_profitability::profitable_path_p): Disable
	threading through latches until after loop optimizations have run.

2021-09-10  David Faust  <david.faust@oracle.com>

	* doc/invoke.texi: Document BPF -mcpu, -mjmpext, -mjmp32 and -malu32
	options.

2021-09-10  David Faust  <david.faust@oracle.com>

	* config/bpf/bpf-opts.h (bpf_isa_version): New enum.
	* config/bpf/bpf-protos.h (bpf_expand_cbranch): New.
	* config/bpf/bpf.c (bpf_option_override): Handle -mcpu option.
	(bpf_expand_cbranch): New function.
	* config/bpf/bpf.md (AM mode iterator): Conditionalize support for SI
	mode.
	(zero_extendsidi2): Only use mov32 instruction if it is available.
	(SIM mode iterator): Conditionalize support for SI mode.
	(JM mode iterator): New.
	(cbranchdi4): Update name, use new JM iterator. Use bpf_expand_cbranch.
	(*branch_on_di): Update name, use new JM iterator.
	* config/bpf/bpf.opt: (mjmpext): New option.
	(malu32): Likewise.
	(mjmp32): Likewise.
	(mcpu): Likewise.
	(bpf_isa): New enum.

2021-09-10  David Faust  <david.faust@oracle.com>

	* config/bpf/bpf.md (zero_extendhidi2): Add new output template
	for register-to-register extensions.
	(zero_extendqidi2): Likewise.

2021-09-10  Richard Biener  <rguenther@suse.de>

	PR middle-end/102273
	* internal-fn.c (expand_DEFERRED_INIT): Always expand non-SSA vars.

2021-09-10  Richard Biener  <rguenther@suse.de>

	PR middle-end/102269
	* gimplify.c (is_var_need_auto_init): Empty types do not need
	initialization.

2021-09-10  Richard Biener  <rguenther@suse.de>

	* configure.ac (--with-stabs): Remove.
	* configure: Regenerate.
	* doc/install.texi: Remove --with-stabs documentation.

2021-09-10  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h: (_mm512_cmp_ph_mask):
	New intrinsic.
	(_mm512_mask_cmp_ph_mask): Likewise.
	(_mm512_cmp_round_ph_mask): Likewise.
	(_mm512_mask_cmp_round_ph_mask): Likewise.
	(_mm_cmp_sh_mask): Likewise.
	(_mm_mask_cmp_sh_mask): Likewise.
	(_mm_cmp_round_sh_mask): Likewise.
	(_mm_mask_cmp_round_sh_mask): Likewise.
	(_mm_comieq_sh): Likewise.
	(_mm_comilt_sh): Likewise.
	(_mm_comile_sh): Likewise.
	(_mm_comigt_sh): Likewise.
	(_mm_comige_sh): Likewise.
	(_mm_comineq_sh): Likewise.
	(_mm_ucomieq_sh): Likewise.
	(_mm_ucomilt_sh): Likewise.
	(_mm_ucomile_sh): Likewise.
	(_mm_ucomigt_sh): Likewise.
	(_mm_ucomige_sh): Likewise.
	(_mm_ucomineq_sh): Likewise.
	(_mm_comi_round_sh): Likewise.
	(_mm_comi_sh): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm_cmp_ph_mask): New intrinsic.
	(_mm_mask_cmp_ph_mask): Likewise.
	(_mm256_cmp_ph_mask): Likewise.
	(_mm256_mask_cmp_ph_mask): Likewise.
	* config/i386/i386-builtin-types.def: Add corresponding builtin types.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/i386-expand.c
	(ix86_expand_args_builtin): Handle new builtin types.
	(ix86_expand_round_builtin): Ditto.
	* config/i386/i386.md (ssevecmode): Add HF mode.
	(MODEFH): New mode iterator.
	* config/i386/sse.md
	(V48H_AVX512VL): New mode iterator to support HF vector modes.
	Ajdust corresponding description.
	(ssecmpintprefix): New.
	(VI12_AVX512VL): Adjust to support HF vector modes.
	(cmp_imm_predicate): Likewise.
	(<avx512>_cmp<mode>3<mask_scalar_merge_name><round_saeonly_name>):
	Likewise.
	(avx512f_vmcmp<mode>3<round_saeonly_name>): Likewise.
	(avx512f_vmcmp<mode>3_mask<round_saeonly_name>): Likewise.
	(<sse>_<unord>comi<round_saeonly_name>): Likewise.

2021-09-10  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h: (_mm512_max_ph): New intrinsic.
	(_mm512_mask_max_ph): Likewise.
	(_mm512_maskz_max_ph): Likewise.
	(_mm512_min_ph): Likewise.
	(_mm512_mask_min_ph): Likewise.
	(_mm512_maskz_min_ph): Likewise.
	(_mm512_max_round_ph): Likewise.
	(_mm512_mask_max_round_ph): Likewise.
	(_mm512_maskz_max_round_ph): Likewise.
	(_mm512_min_round_ph): Likewise.
	(_mm512_mask_min_round_ph): Likewise.
	(_mm512_maskz_min_round_ph): Likewise.
	(_mm_max_sh): Likewise.
	(_mm_mask_max_sh): Likewise.
	(_mm_maskz_max_sh): Likewise.
	(_mm_min_sh): Likewise.
	(_mm_mask_min_sh): Likewise.
	(_mm_maskz_min_sh): Likewise.
	(_mm_max_round_sh): Likewise.
	(_mm_mask_max_round_sh): Likewise.
	(_mm_maskz_max_round_sh): Likewise.
	(_mm_min_round_sh): Likewise.
	(_mm_mask_min_round_sh): Likewise.
	(_mm_maskz_min_round_sh): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm_max_ph): New intrinsic.
	(_mm256_max_ph): Likewise.
	(_mm_mask_max_ph): Likewise.
	(_mm256_mask_max_ph): Likewise.
	(_mm_maskz_max_ph): Likewise.
	(_mm256_maskz_max_ph): Likewise.
	(_mm_min_ph): Likewise.
	(_mm256_min_ph): Likewise.
	(_mm_mask_min_ph): Likewise.
	(_mm256_mask_min_ph): Likewise.
	(_mm_maskz_min_ph): Likewise.
	(_mm256_maskz_min_ph): Likewise.
	* config/i386/i386-builtin-types.def: Add corresponding builtin types.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/i386-expand.c
	(ix86_expand_args_builtin): Handle new builtin types.
	* config/i386/sse.md
	(<code><mode>3<mask_name><round_saeonly_name>): Adjust to
	support HF vector modes.
	(*<code><mode>3<mask_name><round_saeonly_name>): Likewise.
	(ieee_<ieee_maxmin><mode>3<mask_name><round_saeonly_name>):
	Likewise.
	(<sse>_vm<code><mode>3<mask_scalar_name><round_saeonly_scalar_name>):
	Likewise.
	* config/i386/subst.md (round_saeonly_mode512bit_condition):
	Adjust for HF vector modes.

2021-09-10  Liu, Hongtao  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm_add_sh): New intrinsic.
	(_mm_mask_add_sh): Likewise.
	(_mm_maskz_add_sh): Likewise.
	(_mm_sub_sh): Likewise.
	(_mm_mask_sub_sh): Likewise.
	(_mm_maskz_sub_sh): Likewise.
	(_mm_mul_sh): Likewise.
	(_mm_mask_mul_sh): Likewise.
	(_mm_maskz_mul_sh): Likewise.
	(_mm_div_sh): Likewise.
	(_mm_mask_div_sh): Likewise.
	(_mm_maskz_div_sh): Likewise.
	(_mm_add_round_sh): Likewise.
	(_mm_mask_add_round_sh): Likewise.
	(_mm_maskz_add_round_sh): Likewise.
	(_mm_sub_round_sh): Likewise.
	(_mm_mask_sub_round_sh): Likewise.
	(_mm_maskz_sub_round_sh): Likewise.
	(_mm_mul_round_sh): Likewise.
	(_mm_mask_mul_round_sh): Likewise.
	(_mm_maskz_mul_round_sh): Likewise.
	(_mm_div_round_sh): Likewise.
	(_mm_mask_div_round_sh): Likewise.
	(_mm_maskz_div_round_sh): Likewise.
	* config/i386/i386-builtin-types.def: Add corresponding builtin types.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/i386-expand.c
	(ix86_expand_round_builtin): Handle new builtins.
	* config/i386/sse.md (VF_128): Change description.
	(<sse>_vm<plusminus_insn><mode>3<mask_scalar_name><round_scalar_name>):
	Adjust to support HF vector modes.
	(<sse>_vm<multdiv_mnemonic><mode>3<mask_scalar_name><round_scalar_name>):
	Likewise.

2021-09-10  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/i386-expand.c
	(ix86_avx256_split_vector_move_misalign): Handle V16HF mode.
	* config/i386/i386.c
	(ix86_preferred_simd_mode): Handle HF mode.
	* config/i386/sse.md (V_256H): New mode iterator.
	(avx_vextractf128<mode>): Use it.
	(VEC_INIT_MODE): Align vector HFmode condition to vector
	HImodes since there're no real HF instruction used.
	(VEC_INIT_HALF_MODE): Ditto.
	(VIHF): Ditto.
	(VIHF_AVX512BW): Ditto.
	(*vec_extracthf): Ditto.
	(VEC_EXTRACT_MODE): Ditto.

2021-09-10  Richard Biener  <rguenther@suse.de>

	PR target/102255
	* config/dbx.h: Remove.
	* config/dbxcoff.h: Do not define PREFERRED_DEBUGGING_TYPE.
	* config/lynx.h: Likewise.

2021-09-10  liuhongt  <hongtao.liu@intel.com>

	* config/i386/i386-expand.c (ix86_expand_copysign): Expand
	right into ANDNOT + AND + IOR, using paradoxical subregs.
	(ix86_split_copysign_const): Remove.
	(ix86_split_copysign_var): Ditto.
	* config/i386/i386-protos.h (ix86_split_copysign_const): Dotto.
	(ix86_split_copysign_var): Ditto.
	* config/i386/i386.md (@copysign<mode>3_const): Ditto.
	(@copysign<mode>3_var): Ditto.

2021-09-09  qing zhao  <qing.zhao@oracle.com>

	* builtins.c (expand_builtin_memset): Make external visible.
	* builtins.h (expand_builtin_memset): Declare extern.
	* common.opt (ftrivial-auto-var-init=): New option.
	* doc/extend.texi: Document the uninitialized attribute.
	* doc/invoke.texi: Document -ftrivial-auto-var-init.
	* flag-types.h (enum auto_init_type): New enumerated type
	auto_init_type.
	* gimple-fold.c (clear_padding_type): Add one new parameter.
	(clear_padding_union): Likewise.
	(clear_padding_emit_loop): Likewise.
	(clear_type_padding_in_mask): Likewise.
	(gimple_fold_builtin_clear_padding): Handle this new parameter.
	* gimplify.c (gimple_add_init_for_auto_var): New function.
	(gimple_add_padding_init_for_auto_var): New function.
	(is_var_need_auto_init): New function.
	(gimplify_decl_expr): Add initialization to automatic variables per
	users' requests.
	(gimplify_call_expr): Add one new parameter for call to
	__builtin_clear_padding.
	(gimplify_init_constructor): Add padding initialization in the end.
	* internal-fn.c (INIT_PATTERN_VALUE): New macro.
	(expand_DEFERRED_INIT): New function.
	* internal-fn.def (DEFERRED_INIT): New internal function.
	* tree-cfg.c (verify_gimple_call): Verify calls to .DEFERRED_INIT.
	* tree-sra.c (generate_subtree_deferred_init): New function.
	(scan_function): Avoid setting cannot_scalarize_away_bitmap for
	calls to .DEFERRED_INIT.
	(sra_modify_deferred_init): New function.
	(sra_modify_function_body): Handle calls to DEFERRED_INIT specially.
	* tree-ssa-structalias.c (find_func_aliases_for_call): Likewise.
	* tree-ssa-uninit.c (warn_uninit): Handle calls to DEFERRED_INIT
	specially.
	(check_defs): Likewise.
	(warn_uninitialized_vars): Likewise.
	* tree-ssa.c (ssa_undefined_value_p): Likewise.
	* tree.c (build_common_builtin_nodes): Build tree node for
	BUILT_IN_CLEAR_PADDING when needed.

2021-09-09  Richard Biener  <rguenther@suse.de>

	* tree-ssa-loop-im.c (fill_always_executed_in_1): Walk
	into all subloops.

2021-09-09  Richard Biener  <rguenther@suse.de>

	* tree-ssa-loop-im.c (fill_always_executed_in_1): Integrate
	DOM walk from get_loop_body_in_dom_order using a worklist
	approach.

2021-09-09  liuhongt  <hongtao.liu@intel.com>

	* config.gcc: Add avx512fp16vlintrin.h.
	* config/i386/avx512fp16intrin.h: (_mm512_add_ph): New intrinsic.
	(_mm512_mask_add_ph): Likewise.
	(_mm512_maskz_add_ph): Likewise.
	(_mm512_sub_ph): Likewise.
	(_mm512_mask_sub_ph): Likewise.
	(_mm512_maskz_sub_ph): Likewise.
	(_mm512_mul_ph): Likewise.
	(_mm512_mask_mul_ph): Likewise.
	(_mm512_maskz_mul_ph): Likewise.
	(_mm512_div_ph): Likewise.
	(_mm512_mask_div_ph): Likewise.
	(_mm512_maskz_div_ph): Likewise.
	(_mm512_add_round_ph): Likewise.
	(_mm512_mask_add_round_ph): Likewise.
	(_mm512_maskz_add_round_ph): Likewise.
	(_mm512_sub_round_ph): Likewise.
	(_mm512_mask_sub_round_ph): Likewise.
	(_mm512_maskz_sub_round_ph): Likewise.
	(_mm512_mul_round_ph): Likewise.
	(_mm512_mask_mul_round_ph): Likewise.
	(_mm512_maskz_mul_round_ph): Likewise.
	(_mm512_div_round_ph): Likewise.
	(_mm512_mask_div_round_ph): Likewise.
	(_mm512_maskz_div_round_ph): Likewise.
	* config/i386/avx512fp16vlintrin.h: New header.
	* config/i386/i386-builtin-types.def (V16HF, V8HF, V32HF):
	Add new builtin types.
	* config/i386/i386-builtin.def: Add corresponding builtins.
	* config/i386/i386-expand.c
	(ix86_expand_args_builtin): Handle new builtin types.
	(ix86_expand_round_builtin): Likewise.
	* config/i386/immintrin.h: Include avx512fp16vlintrin.h
	* config/i386/sse.md (VFH): New mode_iterator.
	(VF2H): Likewise.
	(avx512fmaskmode): Add HF vector modes.
	(avx512fmaskhalfmode): Likewise.
	(<plusminus_insn><mode>3<mask_name><round_name>): Adjust to for
	HF vector modes.
	(*<plusminus_insn><mode>3<mask_name><round_name>): Likewise.
	(mul<mode>3<mask_name><round_name>): Likewise.
	(*mul<mode>3<mask_name><round_name>): Likewise.
	(div<mode>3): Likewise.
	(<sse>_div<mode>3<mask_name><round_name>): Likewise.
	* config/i386/subst.md (SUBST_V): Add HF vector modes.
	(SUBST_A): Likewise.
	(round_mode512bit_condition): Adjust for V32HFmode.

2021-09-09  liuhongt  <hongtao.liu@intel.com>

	PR target/101059
	* config/i386/sse.md (reduc_plus_scal_<mode>): Split to ..
	(reduc_plus_scal_v4sf): .. this, New define_expand.
	(reduc_plus_scal_v2df): .. and this, New define_expand.

2021-09-09  liuhongt  <hongtao.liu@intel.com>

	PR target/91103
	* config/i386/sse.md (*vec_extract<mode><ssescalarmodelower>_valign):
	New define_insn.

2021-09-08  Jonathan Wakely  <jwakely@redhat.com>

	PR c++/60318
	* doc/trouble.texi (Copy Assignment): Fix description of
	behaviour and fix code in example.

2021-09-08  Segher Boessenkool  <segher@kernel.crashing.org>

	PR target/102107
	* config/rs6000/rs6000-logue.c (rs6000_emit_epilogue): For ELFv2 use
	r11 instead of r12 for restoring CR.

2021-09-08  Jakub Jelinek  <jakub@redhat.com>
	    liuhongt  <hongtao.liu@intel.com>

	PR target/89984
	* config/i386/i386.md (@xorsign<mode>3_1): Remove.
	* config/i386/i386-expand.c (ix86_expand_xorsign): Expand right away
	into AND with mask and XOR, using paradoxical subregs.
	(ix86_split_xorsign): Remove.
	* config/i386/i386-protos.h (ix86_split_xorsign): Remove.

2021-09-08  Di Zhao  <dizhao@os.amperecomputing.com>

	* tree-ssa-sccvn.c (vn_nary_op_insert_into): fix result compare

2021-09-08  Jakub Jelinek  <jakub@redhat.com>

	PR target/102224
	* config/i386/i386.md (xorsign<mode>3): If operands[1] is equal to
	operands[2], emit abs<mode>2 instead.
	(@xorsign<mode>3_1): Add early-clobbers for output operand, enable
	first alternative even for avx, add another alternative with
	=&Yv <- 0, Yv, Yvm constraints.
	* config/i386/i386-expand.c (ix86_split_xorsign): If op0 is equal
	to op1, emit vpandn instead.

2021-09-08  liuhongt  <hongtao.liu@intel.com>

	* config/i386/avx512fp16intrin.h (_mm_set_ph): New intrinsic.
	(_mm256_set_ph): Likewise.
	(_mm512_set_ph): Likewise.
	(_mm_setr_ph): Likewise.
	(_mm256_setr_ph): Likewise.
	(_mm512_setr_ph): Likewise.
	(_mm_set1_ph): Likewise.
	(_mm256_set1_ph): Likewise.
	(_mm512_set1_ph): Likewise.
	(_mm_setzero_ph): Likewise.
	(_mm256_setzero_ph): Likewise.
	(_mm512_setzero_ph): Likewise.
	(_mm_set_sh): Likewise.
	(_mm_load_sh): Likewise.
	(_mm_store_sh): Likewise.
	* config/i386/i386-builtin-types.def (V8HF): New type.
	(DEF_FUNCTION_TYPE (V8HF, V8HI)): New builtin function type
	* config/i386/i386-expand.c (ix86_expand_vector_init_duplicate):
	Support vector HFmodes.
	(ix86_expand_vector_init_one_nonzero): Likewise.
	(ix86_expand_vector_init_one_var): Likewise.
	(ix86_expand_vector_init_interleave): Likewise.
	(ix86_expand_vector_init_general): Likewise.
	(ix86_expand_vector_set): Likewise.
	(ix86_expand_vector_extract): Likewise.
	(ix86_expand_vector_init_concat): Likewise.
	(ix86_expand_sse_movcc): Handle vector HFmodes.
	(ix86_expand_vector_set_var): Ditto.
	* config/i386/i386-modes.def: Add HF vector modes in comment.
	* config/i386/i386.c (classify_argument): Add HF vector modes.
	(ix86_hard_regno_mode_ok): Allow HF vector modes for AVX512FP16.
	(ix86_vector_mode_supported_p): Likewise.
	(ix86_set_reg_reg_cost): Handle vector HFmode.
	(ix86_get_ssemov): Handle vector HFmode.
	(function_arg_advance_64): Pass unamed V16HFmode and V32HFmode
	by stack.
	(function_arg_advance_32): Pass V8HF/V16HF/V32HF by sse reg for 32bit
	mode.
	(function_arg_advance_32): Ditto.
	* config/i386/i386.h (VALID_AVX512FP16_REG_MODE): New.
	(VALID_AVX256_REG_OR_OI_MODE): Rename to ..
	(VALID_AVX256_REG_OR_OI_VHF_MODE): .. this, and add V16HF.
	(VALID_SSE2_REG_VHF_MODE): New.
	(VALID_AVX512VL_128_REG_MODE): Add V8HF and TImode.
	(SSE_REG_MODE_P): Add vector HFmode.
	* config/i386/i386.md (mode): Add HF vector modes.
	(MODE_SIZE): Likewise.
	(ssemodesuffix): Add ph suffix for HF vector modes.
	* config/i386/sse.md (VFH_128): New mode iterator.
	(VMOVE): Adjust for HF vector modes.
	(V): Likewise.
	(V_256_512): Likewise.
	(avx512): Likewise.
	(avx512fmaskmode): Likewise.
	(shuffletype): Likewise.
	(sseinsnmode): Likewise.
	(ssedoublevecmode): Likewise.
	(ssehalfvecmode): Likewise.
	(ssehalfvecmodelower): Likewise.
	(ssePScmode): Likewise.
	(ssescalarmode): Likewise.
	(ssescalarmodelower): Likewise.
	(sseintprefix): Likewise.
	(i128): Likewise.
	(bcstscalarsuff): Likewise.
	(xtg_mode): Likewise.
	(VI12HF_AVX512VL): New mode_iterator.
	(VF_AVX512FP16): Likewise.
	(VIHF): Likewise.
	(VIHF_256): Likewise.
	(VIHF_AVX512BW): Likewise.
	(V16_256): Likewise.
	(V32_512): Likewise.
	(sseintmodesuffix): New mode_attr.
	(sse): Add scalar and vector HFmodes.
	(ssescalarmode): Add vector HFmode mapping.
	(ssescalarmodesuffix): Add sh suffix for HFmode.
	(*<sse>_vm<insn><mode>3): Use VFH_128.
	(*<sse>_vm<multdiv_mnemonic><mode>3): Likewise.
	(*ieee_<ieee_maxmin><mode>3): Likewise.
	(<avx512>_blendm<mode>): New define_insn.
	(vec_setv8hf): New define_expand.
	(vec_set<mode>_0): New define_insn for HF vector set.
	(*avx512fp16_movsh): Likewise.
	(avx512fp16_movsh): Likewise.
	(vec_extract_lo_v32hi): Rename to ...
	(vec_extract_lo_<mode>): ... this, and adjust to allow HF
	vector modes.
	(vec_extract_hi_v32hi): Likewise.
	(vec_extract_hi_<mode>): Likewise.
	(vec_extract_lo_v16hi): Likewise.
	(vec_extract_lo_<mode>): Likewise.
	(vec_extract_hi_v16hi): Likewise.
	(vec_extract_hi_<mode>): Likewise.
	(vec_set_hi_v16hi): Likewise.
	(vec_set_hi_<mode>): Likewise.
	(vec_set_lo_v16hi): Likewise.
	(vec_set_lo_<mode>): Likewise.
	(*vec_extract<mode>_0): New define_insn_and_split for HF
	vector extract.
	(*vec_extracthf): New define_insn.
	(VEC_EXTRACT_MODE): Add HF vector modes.
	(PINSR_MODE): Add V8HF.
	(sse2p4_1): Likewise.
	(pinsr_evex_isa): Likewise.
	(<sse2p4_1>_pinsr<ssemodesuffix>): Adjust to support
	insert for V8HFmode.
	(pbroadcast_evex_isa): Add HF vector modes.
	(AVX2_VEC_DUP_MODE): Likewise.
	(VEC_INIT_MODE): Likewise.
	(VEC_INIT_HALF_MODE): Likewise.
	(avx2_pbroadcast<mode>): Adjust to support HF vector mode
	broadcast.
	(avx2_pbroadcast<mode>_1): Likewise.
	(<avx512>_vec_dup<mode>_1): Likewise.
	(<avx512>_vec_dup<mode><mask_name>): Likewise.
	(<mask_codefor><avx512>_vec_dup_gpr<mode><mask_name>):
	Likewise.

2021-09-08  Guo, Xuepeng  <xuepeng.guo@intel.com>
	    H.J. Lu  <hongjiu.lu@intel.com>
	    Liu Hongtao  <hongtao.liu@intel.com>
	    Wang Hongyu  <hongyu.wang@intel.com>
	    Xu Dianhong  <dianhong.xu@intel.com>

	* common/config/i386/cpuinfo.h (get_available_features):
	Detect FEATURE_AVX512FP16.
	* common/config/i386/i386-common.c
	(OPTION_MASK_ISA_AVX512FP16_SET,
	OPTION_MASK_ISA_AVX512FP16_UNSET,
	OPTION_MASK_ISA2_AVX512FP16_SET,
	OPTION_MASK_ISA2_AVX512FP16_UNSET): New.
	(OPTION_MASK_ISA2_AVX512BW_UNSET,
	OPTION_MASK_ISA2_AVX512BF16_UNSET): Add AVX512FP16.
	(ix86_handle_option): Handle -mavx512fp16.
	* common/config/i386/i386-cpuinfo.h (enum processor_features):
	Add FEATURE_AVX512FP16.
	* common/config/i386/i386-isas.h: Add entry for AVX512FP16.
	* config.gcc: Add avx512fp16intrin.h.
	* config/i386/avx512fp16intrin.h: New intrinsic header.
	* config/i386/cpuid.h: Add bit_AVX512FP16.
	* config/i386/i386-builtin-types.def: (FLOAT16): New primitive type.
	* config/i386/i386-builtins.c: Support _Float16 type for i386
	backend.
	(ix86_register_float16_builtin_type): New function.
	(ix86_float16_type_node): New.
	* config/i386/i386-c.c (ix86_target_macros_internal): Define
	__AVX512FP16__.
	* config/i386/i386-expand.c (ix86_expand_branch): Support
	HFmode.
	(ix86_prepare_fp_compare_args): Adjust TARGET_SSE_MATH &&
	SSE_FLOAT_MODE_P to SSE_FLOAT_MODE_SSEMATH_OR_HF_P.
	(ix86_expand_fp_movcc): Ditto.
	* config/i386/i386-isa.def: Add PTA define for AVX512FP16.
	* config/i386/i386-options.c (isa2_opts): Add -mavx512fp16.
	(ix86_valid_target_attribute_inner_p): Add avx512fp16 attribute.
	* config/i386/i386.c (ix86_get_ssemov): Use
	vmovdqu16/vmovw/vmovsh for HFmode/HImode scalar or vector.
	(ix86_get_excess_precision): Use
	FLT_EVAL_METHOD_PROMOTE_TO_FLOAT16 when TARGET_AVX512FP16
	existed.
	(sse_store_index): Use SFmode cost for HFmode cost.
	(inline_memory_move_cost): Add HFmode, and perfer SSE cost over
	GPR cost for HFmode.
	(ix86_hard_regno_mode_ok): Allow HImode in sse register.
	(ix86_mangle_type): Add manlging for _Float16 type.
	(inline_secondary_memory_needed): No memory is needed for
	16bit movement between gpr and sse reg under
	TARGET_AVX512FP16.
	(ix86_multiplication_cost): Adjust TARGET_SSE_MATH &&
	SSE_FLOAT_MODE_P to SSE_FLOAT_MODE_SSEMATH_OR_HF_P.
	(ix86_division_cost): Ditto.
	(ix86_rtx_costs): Ditto.
	(ix86_add_stmt_cost): Ditto.
	(ix86_optab_supported_p): Ditto.
	* config/i386/i386.h (VALID_AVX512F_SCALAR_MODE): Add HFmode.
	(SSE_FLOAT_MODE_SSEMATH_OR_HF_P): Add HFmode.
	(PTA_SAPPHIRERAPIDS): Add PTA_AVX512FP16.
	* config/i386/i386.md (mode): Add HFmode.
	(MODE_SIZE): Add HFmode.
	(isa): Add avx512fp16.
	(enabled): Handle avx512fp16.
	(ssemodesuffix): Add sh suffix for HFmode.
	(comm): Add mult, div.
	(plusminusmultdiv): New code iterator.
	(insn): Add mult, div.
	(*movhf_internal): Adjust for avx512fp16 instruction.
	(*movhi_internal): Ditto.
	(*cmpi<unord>hf): New define_insn for HFmode.
	(*ieee_s<ieee_maxmin>hf3): Likewise.
	(extendhf<mode>2): Likewise.
	(trunc<mode>hf2): Likewise.
	(float<floatunssuffix><mode>hf2): Likewise.
	(*<insn>hf): Likewise.
	(cbranchhf4): New expander.
	(movhfcc): Likewise.
	(<insn>hf3): Likewise.
	(mulhf3): Likewise.
	(divhf3): Likewise.
	* config/i386/i386.opt: Add mavx512fp16.
	* config/i386/immintrin.h: Include avx512fp16intrin.h.
	* doc/invoke.texi: Add mavx512fp16.
	* doc/extend.texi: Add avx512fp16 Usage Notes.

2021-09-08  liuhongt  <hongtao.liu@intel.com>

	* common.opt: Support -fexcess-precision=16.
	* config/aarch64/aarch64.c (aarch64_excess_precision): Return
	FLT_EVAL_METHOD_PROMOTE_TO_FLOAT16 when
	EXCESS_PRECISION_TYPE_FLOAT16.
	* config/arm/arm.c (arm_excess_precision): Ditto.
	* config/i386/i386.c (ix86_get_excess_precision): Ditto.
	* config/m68k/m68k.c (m68k_excess_precision): Issue an error
	when EXCESS_PRECISION_TYPE_FLOAT16.
	* config/s390/s390.c (s390_excess_precision): Ditto.
	* coretypes.h (enum excess_precision_type): Add
	EXCESS_PRECISION_TYPE_FLOAT16.
	* doc/tm.texi (TARGET_C_EXCESS_PRECISION): Update documents.
	* doc/tm.texi.in (TARGET_C_EXCESS_PRECISION): Ditto.
	* doc/extend.texi (Half-Precision): Document
	-fexcess-precision=16.
	* flag-types.h (enum excess_precision): Add
	EXCESS_PRECISION_FLOAT16.
	* target.def (excess_precision): Update document.
	* tree.c (excess_precision_type): Set excess_precision_type to
	EXCESS_PRECISION_FLOAT16 when -fexcess-precision=16.

2021-09-08  liuhongt  <hongtao.liu@intel.com>

	* doc/extend.texi: (@node Floating Types): Adjust the wording.
	(@node Half-Precision): Ditto.

2021-09-07  Takayuki 'January June' Suwa  <jjsuwa_sys3175@yahoo.co.jp>

	PR target/102115
	* config/xtensa/xtensa.c (xtensa_emit_move_sequence): Add
	'CONST_INT_P (src)' to the condition of the block that tries to
	eliminate literal when loading integer contant.

2021-09-07  David Faust  <david.faust@oracle.com>

	* doc/extend.texi (BPF Type Attributes) New node.
	Document new preserve_access_index attribute.
	Document new preserve_access_index builtin.
	* doc/invoke.texi: Document -mco-re and -mno-co-re options.

2021-09-07  David Faust  <david.faust@oracle.com>

	* config/bpf/bpf.c: Adjust includes.
	(bpf_handle_preserve_access_index_attribute): New function.
	(bpf_attribute_table): Use it here.
	(bpf_builtins): Add BPF_BUILTIN_PRESERVE_ACCESS_INDEX.
	(bpf_option_override): Handle "-mco-re" option.
	(bpf_asm_init_sections): New.
	(TARGET_ASM_INIT_SECTIONS): Redefine.
	(bpf_file_end): New.
	(TARGET_ASM_FILE_END): Redefine.
	(bpf_init_builtins): Add "__builtin_preserve_access_index".
	(bpf_core_compute, bpf_core_get_index): New.
	(is_attr_preserve_access): New.
	(bpf_expand_builtin): Handle new builtins.
	(bpf_core_newdecl, bpf_core_is_maybe_aggregate_access): New.
	(bpf_core_walk): New.
	(bpf_resolve_overloaded_builtin): New.
	(TARGET_RESOLVE_OVERLOADED_BUILTIN): Redefine.
	(handle_attr): New.
	(pass_bpf_core_attr): New RTL pass.
	* config/bpf/bpf-passes.def: New file.
	* config/bpf/bpf-protos.h (make_pass_bpf_core_attr): New.
	* config/bpf/coreout.c: New file.
	* config/bpf/coreout.h: Likewise.
	* config/bpf/t-bpf (TM_H): Add $(srcdir)/config/bpf/coreout.h.
	(coreout.o): New rule.
	(PASSES_EXTRA): Add $(srcdir)/config/bpf/bpf-passes.def.
	* config.gcc (bpf): Add coreout.h to extra_headers.
	Add coreout.o to extra_objs.
	Add $(srcdir)/config/bpf/coreout.c to target_gtfiles.

2021-09-07  David Faust  <david.faust@oracle.com>

	* btfout.c (get_btf_id): Function is no longer static.
	* ctfc.h: Expose it here.

2021-09-07  David Faust  <david.faust@oracle.com>

	* ctfc.c (ctf_lookup_tree_type): New function.
	* ctfc.h: Likewise.

2021-09-07  David Faust  <david.faust@oracle.com>

	* ctfc.c (ctf_dtd_lookup): Function is no longer static.
	* ctfc.h: Analogous change.

2021-09-07  David Faust  <david.faust@oracle.com>

	* dwarf2out.c (lookup_type_die): Function is no longer static.
	* dwarf2out.h: Expose it here.

2021-09-07  Indu Bhagat  <indu.bhagat@oracle.com>

	* dwarf2ctf.c (ctf_debug_finalize): Make it static.
	(ctf_debug_early_finish): New definition.
	(ctf_debug_finish): Likewise.
	* dwarf2ctf.h (ctf_debug_finalize): Remove declaration.
	(ctf_debug_early_finish): New declaration.
	(ctf_debug_finish): Likewise.
	* dwarf2out.c (dwarf2out_finish): Invoke ctf_debug_finish.
	(dwarf2out_early_finish): Invoke ctf_debug_early_finish.

2021-09-07  Indu Bhagat  <indu.bhagat@oracle.com>

	* config/bpf/bpf.c (bpf_option_override): For BPF backend, disable LTO
	support when compiling for CO-RE.
	* config/bpf/bpf.opt: Add new command line option -mco-re.

2021-09-07  Indu Bhagat  <indu.bhagat@oracle.com>

	* flag-types.h (enum debug_info_type): Add new enum
	DINFO_TYPE_BTF_WITH_CORE.
	(BTF_WITH_CORE_DEBUG): New bitmask.
	* flags.h (btf_with_core_debuginfo_p): New declaration.
	* opts.c (btf_with_core_debuginfo_p): New definition.

2021-09-07  Jason Merrill  <jason@redhat.com>

	* tree.h (error_operand_p): Change to inline function.

2021-09-07  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadedge.c (forwarder_block_p): Rename to...
	(empty_block_with_phis_p): ...this.
	(potentially_threadable_block): Same.
	(jump_threader::thread_through_normal_block): Same.

2021-09-07  Eric Botcazou  <ebotcazou@adacore.com>

	PR debug/101947
	* dwarf2out.c (mark_base_types): New overloaded function.
	(dwarf2out_early_finish): Invoke it on the COMDAT type list as well
	as the compilation unit, and call move_marked_base_types afterward.

2021-09-07  H.J. Lu  <hjl.tools@gmail.com>

	PR target/85819
	* config/i386/i386-expand.c (ix86_expand_convert_uns_sisf_sse):
	Enable FMA.
	(ix86_expand_vector_convert_uns_vsivsf): Likewise.

2021-09-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102226
	* tree-vect-loop.c (vect_transform_cycle_phi): Record
	the converted value for the epilogue PHI use.

2021-09-07  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/80223
	* ipa-inline.c (can_inline_edge_p): Similarly to sanitizer
	options, do not inline when no_profile_instrument_function
	attributes are different in early inliner. It's fine to inline
	it after PGO instrumentation.

2021-09-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101555
	* tree-ssa-pre.c (translate_vuse_through_block): Do not
	perform an alias walk to determine the validity of the
	mem at the start of the block which is already guaranteed
	by means of prune_clobbered_mems.
	(phi_translate_1): Pass edge to translate_vuse_through_block.

2021-09-07  Xionghu Luo  <luoxhu@linux.ibm.com>

	PR target/97142
	* config/rs6000/rs6000.md (fmod<mode>3): New define_expand.
	(remainder<mode>3): Likewise.

2021-09-07  YunQiang Su  <yunqiang.su@cipunited.com>

	* config/mips/mips.c (mips_file_start): add .module for
	  arch and ase.

2021-09-06  Roger Sayle  <roger@nextmovesoftware.com>

	* wide-int.cc (wi::clz): Reorder tests to ensure the result
	is zero for all negative values.

2021-09-06  Tobias Burnus  <tobias@codesourcery.com>

	* doc/invoke.texi (-foffload-options): Fix @opindex.

2021-09-06  H.J. Lu  <hjl.tools@gmail.com>

	PR target/89984
	* config/i386/i386-expand.c (ix86_split_xorsign): Use operands[2].
	* config/i386/i386.md (@xorsign<mode>3_1): Add non-destructive
	source alternative for AVX.

2021-09-06  liuhongt  <hongtao.liu@intel.com>

	PR middle-end/102182
	* optabs.c (expand_fix): Add from1 to avoid from being
	overwritten.

2021-09-06  Eric Botcazou  <ebotcazou@adacore.com>

	* dwarf2out.c (modified_type_die): Deal with all array types earlier
	and use local variable consistently throughout the function.

2021-09-06  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/102207
	* match.pd: Don't demote operands of IFN_{ADD,SUB,MUL}_OVERFLOW if they
	were promoted from signed to wider unsigned type.

2021-09-06  Andrew Pinski  <apinski@marvell.com>

	PR tree-optimization/63184
	* match.pd: Add simplification of pointer_diff of two pointer_plus
	with addr_expr in the first operand of each pointer_plus.
	Add simplificatoin of ne/eq of two pointer_plus with addr_expr
	in the first operand of each pointer_plus.

2021-09-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102176
	* tree-vect-slp.c (vect_slp_gather_vectorized_scalar_stmts):
	New function.
	(vect_bb_slp_scalar_cost): Use the computed set of
	vectorized scalar stmts instead of relying on the out-of-date
	and not accurate PURE_SLP_STMT.
	(vect_bb_vectorization_profitable_p): Compute the set
	of vectorized scalar stmts.

2021-09-05  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc (path_range_query::range_of_stmt): Remove
	GIMPLE_COND special casing.
	(path_range_query::range_defined_in_block): Use range_of_stmt
	instead of calling fold_range directly.

2021-09-05  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc (path_range_query::range_of_expr): Set
	m_undefined_path when appropriate.
	(path_range_query::internal_range_of_expr): Copy from range_of_expr.
	(path_range_query::unreachable_path_p): New.
	(path_range_query::precompute_ranges): Set m_undefined_path.
	* gimple-range-path.h (path_range_query::unreachable_path_p): New.
	(path_range_query::internal_range_of_expr): New.
	* tree-ssa-threadbackward.c (back_threader::find_taken_edge_cond):
	Use unreachable_path_p.

2021-09-05  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (back_threader::maybe_register_path):
	Remove argument and call find_taken_edge.
	(back_threader::resolve_phi): Do not calculate taken edge before
	calling maybe_register_path.
	(back_threader::find_paths_to_names): Same.

2021-09-05  Jeff Law  <jlaw@localhost.localdomain>

	* config/h8300/h8300.md (QHSI2 mode iterator): New mode iterator.
	* config/h8300/testcompare.md (store_c): Update name, use new
	QHSI2 iterator.
	(store_neg_c, store_shifted_c): New patterns.

2021-09-03  Segher Boessenkool  <segher@kernel.crashing.org>

	PR target/102107
	* config/rs6000/rs6000-logue.c (rs6000_emit_prologue): On ELFv2 use r11
	instead of r12 for CR save, in all cases.

2021-09-03  Andrew Pinski  <apinski@marvell.com>

	* config/aarch64/aarch64-sve-builtins.cc (register_vector_type):
	Handle error_mark_node as the type of the type_decl.

2021-09-03  Andrew Pinski  <apinski@marvell.com>

	* config/aarch64/aarch64-builtins.c (struct aarch64_simd_type_info):
	Mark with GTY.
	(aarch64_simd_types): Likewise.
	(aarch64_simd_intOI_type_node): Likewise.
	(aarch64_simd_intCI_type_node): Likewise.
	(aarch64_simd_intXI_type_node): Likewise.
	* config/aarch64/aarch64.h (aarch64_fp16_type_node): Likewise.
	(aarch64_fp16_ptr_type_node): Likewise.
	(aarch64_bf16_type_node): Likewise.
	(aarch64_bf16_ptr_type_node): Likewise.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* range-op.cc (operator_minus::op1_op2_relation_effect): Abstract
	out to...
	(minus_op1_op2_relation_effect): ...here.
	(class operator_pointer_diff): New.
	(operator_pointer_diff::op1_op2_relation_effect): Call
	minus_op1_op2_relation_effect.
	(integral_table::integral_table): Add entry for POINTER_DIFF_EXPR.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (back_threader::thread_through_all_blocks):
	Add may_peel_loop_headers.
	(back_threader_registry::thread_through_all_blocks): Same.
	(try_thread_blocks): Pass may_peel_loop_headers argument.
	(pass_early_thread_jumps::execute): Same.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadedge.c (has_phis_p): New.
	(forwarder_block_p): New.
	(potentially_threadable_block): Call forwarder_block_p.
	(jump_threader::thread_around_empty_blocks): Call has_phis_p.
	(jump_threader::thread_through_normal_block): Call
	forwarder_block_p.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (back_threader::dump): New.
	(back_threader::debug): New.
	(back_threader_profitability::profitable_path_p): Dump blocks
	even if we are bailing early.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadupdate.c (cancel_thread): New.
	(jump_thread_path_registry::thread_block_1): Use cancel_thread.
	(jump_thread_path_registry::mark_threaded_blocks): Same.
	(jump_thread_path_registry::register_jump_thread): Same.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadedge.c (jt_state::push): Only call methods for
	which objects are available.
	(jt_state::pop): Same.
	(jt_state::register_equiv): Same.
	(jt_state::register_equivs_on_edge): Same.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadedge.c (jump_threader::thread_across_edge):
	Move pop until after a thread is registered.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadupdate.c (debug): New.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-trace.cc (push_dump_file::push_dump_file): New.
	(push_dump_file::~push_dump_file): New.
	(dump_ranger): Change dump_file temporarily while dumping
	ranger.
	* gimple-range-trace.h (class push_dump_file): New.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-trace.cc (debug_seed_ranger): Remove static.
	(dump_ranger): Dump function name.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc (path_range_query::range_defined_in_block):
	Adjust for non-null.
	(path_range_query::adjust_for_non_null_uses): New.
	(path_range_query::precompute_ranges): Call
	adjust_for_non_null_uses.
	* gimple-range-path.h: Add m_non_null and
	adjust_for_non_null_uses.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.cc (path_range_query::dump): Dump path
	length.
	(path_range_query::precompute_ranges): Dump entire path.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* value-relation.cc (relation_oracle::debug): New.
	* value-relation.h (relation_oracle::debug): New.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-loop-ch.c: Remove unnecessary include file.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-fold.cc (fold_using_range::postfold_gcond_edges):
	Skip statements with no defining BB.
	* gimple-range-path.cc (path_range_query::range_defined_in_block):
	Do not get confused by statements with no defining BB.

2021-09-03  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-fold.cc (adjust_imagpart_expr): Move from
	gimple_range_adjustment.  Add support for constants.
	(adjust_realpart_expr): New.
	(gimple_range_adjustment): Move IMAGPART_EXPR code to
	adjust_imagpart_expr.
	* range-op.cc (integral_table::integral_table): Add entry for
	REALPART_CST.

2021-09-03  Jakub Jelinek  <jakub@redhat.com>

	* omp-expand.c (expand_omp_atomic_pipeline): Use
	IFN_ATOMIC_COMPARE_EXCHANGE instead of
	BUILT_IN_SYNC_VAL_COMPARE_AND_SWAP_? so that memory order
	can be provided.

2021-09-03  Jakub Jelinek  <jakub@redhat.com>

	PR target/102024
	* tree.h (DECL_FIELD_ABI_IGNORED): Changed into rvalue only macro
	that is false if DECL_BIT_FIELD.
	(SET_DECL_FIELD_ABI_IGNORED, DECL_FIELD_CXX_ZERO_WIDTH_BIT_FIELD,
	SET_DECL_FIELD_CXX_ZERO_WIDTH_BIT_FIELD): Define.
	* tree-streamer-out.c (pack_ts_decl_common_value_fields): For
	DECL_BIT_FIELD stream DECL_FIELD_CXX_ZERO_WIDTH_BIT_FIELD instead
	of DECL_FIELD_ABI_IGNORED.
	* tree-streamer-in.c (unpack_ts_decl_common_value_fields): Use
	SET_DECL_FIELD_ABI_IGNORED instead of writing to
	DECL_FIELD_ABI_IGNORED and for DECL_BIT_FIELD use
	SET_DECL_FIELD_CXX_ZERO_WIDTH_BIT_FIELD instead.
	* lto-streamer-out.c (hash_tree): For DECL_BIT_FIELD hash
	DECL_FIELD_CXX_ZERO_WIDTH_BIT_FIELD instead of DECL_FIELD_ABI_IGNORED.

2021-09-03  liuhongt  <hongtao.liu@intel.com>

	PR target/102166
	* config/i386/amxbf16intrin.h : Remove macro check for __AMX_BF16__.
	* config/i386/amxint8intrin.h : Remove macro check for __AMX_INT8__.
	* config/i386/amxtileintrin.h : Remove macro check for __AMX_TILE__.

2021-09-02  Martin Sebor  <msebor@redhat.com>

	PR tree-optimization/17506
	PR testsuite/37182
	* tree-ssa-uninit.c (warn_uninit): Remove conditional guarding note.

2021-09-02  Richard Biener  <rguenther@suse.de>

	* tree-ssa-loop-im.c (fill_always_executed_in_1): Refine
	fix for PR78185 and continue processing when leaving
	finite inner loops.

2021-09-02  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/99591
	* match.pd: Demote operands of IFN_{ADD,SUB,MUL}_OVERFLOW if they
	were promoted.

2021-09-02  Richard Biener  <rguenther@suse.de>

	Revert:
	2021-09-02  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102155
	* tree-ssa-loop-im.c (fill_always_executed_in_1): Iterate
	over a part of the RPO array and do not recurse here.
	Dump blocks marked as always executed.
	(fill_always_executed_in): Walk over the RPO array and
	process loops whose header we run into.
	(loop_invariant_motion_in_fun): Compute the first RPO
	using rev_post_order_and_mark_dfs_back_seme in iteration
	order and pass that to fill_always_executed_in.

2021-09-02  liuhongt  <hongtao.liu@intel.com>

	* config/i386/i386-modes.def (FLOAT_MODE): Define ieee HFmode.
	* config/i386/i386.c (enum x86_64_reg_class): Add
	X86_64_SSEHF_CLASS.
	(merge_classes): Handle X86_64_SSEHF_CLASS.
	(examine_argument): Ditto.
	(construct_container): Ditto.
	(classify_argument): Ditto, and set HFmode/HCmode to
	X86_64_SSEHF_CLASS.
	(function_value_32): Return _FLoat16/Complex Float16 by
	%xmm0.
	(function_value_64): Return _Float16/Complex Float16 by SSE
	register.
	(ix86_print_operand): Handle CONST_DOUBLE HFmode.
	(ix86_secondary_reload): Require gpr as intermediate register
	to store _Float16 from sse register when sse4 is not
	available.
	(ix86_libgcc_floating_mode_supported_p): Enable _FLoat16 under
	sse2.
	(ix86_scalar_mode_supported_p): Ditto.
	(TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Defined.
	* config/i386/i386.h (VALID_SSE2_REG_MODE): Add HFmode.
	(VALID_INT_MODE_P): Add HFmode and HCmode.
	* config/i386/i386.md (*pushhf_rex64): New define_insn.
	(*pushhf): Ditto.
	(*movhf_internal): Ditto.
	* doc/extend.texi (Half-Precision Floating Point): Documemt
	_Float16 for x86.

2021-09-02  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102155
	* tree-ssa-loop-im.c (fill_always_executed_in_1): Iterate
	over a part of the RPO array and do not recurse here.
	Dump blocks marked as always executed.
	(fill_always_executed_in): Walk over the RPO array and
	process loops whose header we run into.
	(loop_invariant_motion_in_fun): Compute the first RPO
	using rev_post_order_and_mark_dfs_back_seme in iteration
	order and pass that to fill_always_executed_in.

2021-09-02  YunQiang Su  <syq@debian.org>

	Revert:
	2021-08-31  YunQiang Su  <yunqiang.su@cipunited.com>

	* config/mips/mips.c (mips_module_isa_name): New.
	  mips_file_start: add .module mipsREV to all asm output

2021-09-01  Jeff Law  <jlaw@localhost.localdomain>

	PR tree-optimization/102152
	* tree-ssa-dom.c (dom_opt_dom_walker::optimize_stmt): Reduce a vector
	comparison to a scalar comparison before calling
	update_stmt_if_modified.

2021-09-01  Andrew Pinski  <apinski@marvell.com>

	PR target/101934
	* config/aarch64/aarch64.c (aarch64_expand_setmem):
	Check STRICT_ALIGNMENT before creating an overlapping
	store.

2021-09-01  Martin Sebor  <msebor@redhat.com>

	* gimple-ssa-warn-access.cc (get_size_range): Add argument.
	(check_access): Pass additional argument.
	(check_memop_access): Remove template and make a member function.
	(maybe_check_dealloc_call): Make a pass_waccess member function.
	(class pass_waccess): Add, rename, and remove members.
	(pass_waccess::pass_waccess): Adjust to name change.
	(pass_waccess::~pass_waccess): Same.
	(check_alloca): Make a member function.
	(check_alloc_size_call): Same.
	(check_strcat): Same.
	(check_strncat): Same.
	(check_stxcpy): Same.
	(check_stxncpy): Same.
	(check_strncmp): Same.
	(maybe_warn_rdwr_sizes): Rename...
	(pass_waccess::maybe_check_access_sizes): ...to this.
	(pass_waccess::check_call): Adjust to name changes.
	(pass_waccess::maybe_check_dealloc_call): Make a pass_waccess member
	function.
	(pass_waccess::execute): Adjust to name changes.
	* gimple-ssa-warn-access.h (check_memop_access): Remove.
	* pointer-query.cc (access_ref::phi): Handle null pointer.
	(access_ref::inform_access): Same.
	(pointer_query::put_ref): Modify a cached value, not a copy of it.
	(pointer_query::dump): New function.
	(compute_objsize_r): Avoid overwriting access_ref::bndrng.  Cache
	more results.
	* pointer-query.h (pointer_query::dump): Declare.
	* tree-ssa-strlen.c (get_range): Simplify.  Use function query.
	(dump_strlen_info): Use function query.
	(printf_strlen_execute): Factor code out into pointer_query::put_ref.

2021-09-01  Thomas Schwinge  <thomas@codesourcery.com>

	* tree.c (walk_tree_1) <OMP_CLAUSE>: Simplify.

2021-09-01  Iain Sandoe  <iain@sandoe.co.uk>

	* doc/extend.texi: Document unavailable attribute.
	* print-tree.c (print_node): Handle unavailable attribute.
	* tree-core.h (struct tree_base): Add a bit to carry unavailability.
	* tree.c (error_unavailable_use): New.
	* tree.h (TREE_UNAVAILABLE): New.
	(error_unavailable_use): New.

2021-09-01  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/102124
	* tree-vect-patterns.c (vect_recog_widen_op_pattern): For ORIG_CODE
	MINUS_EXPR, if itype is unsigned with smaller precision than type,
	add an extra cast to signed variant of itype to ensure sign-extension.

2021-09-01  Martin Liska  <mliska@suse.cz>

	* graph.c (draw_cfg_node_succ_edges): Do not color fallthru
	  edges and rather use colors for TRUE and FALSE edges.

2021-09-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/93491
	* tree-ssa-pre.c (compute_avail): Set BB_MAY_NOTRETURN
	after processing the stmt itself.  Do not consider
	pure functions possibly not returning.  Properly avoid
	adding possibly trapping calls to EXP_GEN when there's
	a preceeding possibly not returning call.
	* tree-ssa-sccvn.c (vn_reference_may_trap): Conservatively
	not handle calls.

2021-09-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102139
	* tree-vectorizer.h (vec_base_alignments): Adjust hash-map
	type to record a std::pair of the stmt-info and the innermost
	loop behavior.
	(dr_vec_info::group): New member.
	* tree-vect-data-refs.c (vect_record_base_alignment): Adjust.
	(vect_compute_data_ref_alignment): Verify the recorded
	base alignment can be used.
	(data_ref_pair): Remove.
	(dr_group_sort_cmp): Adjust.
	(vect_analyze_data_ref_accesses): Store the group-ID in the
	dr_vec_info and operate on a vector of dr_vec_infos.

2021-09-01  YunQiang Su  <yunqiang.su@cipunited.com>

	* read-md.c (md_reader::handle_enum): support value assignation.
	* doc/md.texi: record define_c_enum value assignation support.

2021-09-01  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/102141
	* gimple-ssa-store-merging.c (bswap_view_convert): Add BEFORE
	argument.  If false, emit stmts after gsi instead of before, and
	with GSI_NEW_STMT.
	(bswap_replace): Adjust callers.  When converting output of bswap,
	emit VIEW_CONVERT prepratation stmts after a copy of gsi instead
	of before it.

2021-09-01  liuhongt  <hongtao.liu@intel.com>

	* emit-rtl.c (validate_subreg): Get rid of all float-int
	special cases.

2021-09-01  liuhongt  <hongtao.liu@intel.com>

	Revert:
	2021-08-30  liuhongt  <hongtao.liu@intel.com>

	* expmed.c (extract_bit_field_1): Make sure we're playing with
	integral modes before call extract_integral_bit_field.
	(extract_integral_bit_field): Add a parameter of type
	scalar_int_mode which corresponds to of tmode.
	And call extract_and_convert_fixed_bit_field instead of
	extract_fixed_bit_field and convert_extracted_bit_field.
	(extract_and_convert_fixed_bit_field): New function, it's a
	combination of extract_fixed_bit_field and
	convert_extracted_bit_field.

2021-08-31  Thomas Schwinge  <thomas@codesourcery.com>

	* tree.c (walk_tree_1) <OMP_CLAUSE_TILE>: Handle three operands.

2021-08-31  Thomas Schwinge  <thomas@codesourcery.com>

	* omp-general.h (omp_is_reference): Rename to...
	(omp_privatize_by_reference): ... this.  Adjust all users...
	* omp-general.c: ... here, ...
	* gimplify.c: ... here, ...
	* omp-expand.c: ... here, ...
	* omp-low.c: ... here.

2021-08-31  Martin Sebor  <msebor@redhat.com>

	* gimple-ssa-warn-access.cc (maybe_warn_alloc_args_overflow): Test
	pointer element for equality to zero, not that of the cotaining
	array.

2021-08-31  Martin Sebor  <msebor@redhat.com>

	* gcc-rich-location.h (gcc_rich_location): Make ctor explicit.

2021-08-31  Martin Sebor  <msebor@redhat.com>

	* function.h (function): Add comments.
	(get_range_query): Same.  Add attribute returns nonnull.

2021-08-31  Roger Sayle  <roger@nextmovesoftware.com>

	* expr.c (convert_modes): Don't use subreg_promoted_mode on a
	SUBREG if it can't be guaranteed to a SUBREG_PROMOTED_VAR_P set.
	Instead use the standard (safer) is_a <scalar_int_mode> idiom.

2021-08-31  Jeff Law  <jlaw@localhost.localdomain>

	* config.gcc (cris-*-elf, cris-*-none): Remove dbxelf.h from
	tm_file.
	(m32r-*-elf, m32rle-*-elf, m32r-*-linux): Likewise.
	(mn10300-*-*, am33_2.0-*-linux*): Likewise.
	(xtensa*-*-elf, xtensa*-*-linux, xtensa*-*-uclinux): Likewise.
	(m32c-*-elf*, m32c-*-rtems*): Likewise.
	* config/cris/cris.h (DBX_NO_XREFS): Remove.
	(DBX_CONTIN_LENGTH, DBX_CONTIN_CHAR): Likewise.
	* config/m32r/m32r.h (DBXOUT_SOURCE_LINE): Likewise.
	(DBX_DEBUGGING_INFO, DBX_CONTIN_LENGTH): Likewise.
	* config/mn10300/mn10300.h (DEFAULT_GDB_EXTENSIONS): Likewise.
	* config/mn10300/linux.h (DBX_REGISTER_NAMES): Likewise.

2021-08-31  Marcel Vollweiler  <marcel@codesourcery.com>

	* gimplify.c (gimplify_scan_omp_clauses): Error handling. 'ancestor' only
	allowed on target constructs and only with particular other clauses.
	* omp-expand.c (expand_omp_target): Output of 'sorry, not supported' if
	'ancestor' is used.
	* omp-low.c (check_omp_nesting_restrictions): Error handling. No nested OpenMP
	structs when 'ancestor' is used.
	(scan_omp_1_stmt): No usage of OpenMP runtime routines in a target region when
	'ancestor' is used.
	* tree-pretty-print.c (dump_omp_clause): Append 'ancestor'.
	* tree.h (OMP_CLAUSE_DEVICE_ANCESTOR): Define macro.

2021-08-31  Roger Sayle  <roger@nextmovesoftware.com>

	* expr.c (convert_modes): Preserve SUBREG_PROMOTED_VAR_P when
	creating a (wider) partial subreg from a SUBREG_PROMOTED_VAR_P
	subreg.
	* simplify-rtx.c (simplify_unary_operation_1) [SIGN_EXTEND]:
	Likewise, preserve SUBREG_PROMOTED_VAR_P when creating a (wider)
	partial subreg from a SUBREG_PROMOTED_VAR_P subreg.  Generate
	SIGN_EXTEND of the SUBREG_REG when a subreg would be paradoxical.
	[ZERO_EXTEND]: Likewise, preserve SUBREG_PROMOTED_VAR_P when
	creating a (wider) partial subreg from a SUBREG_PROMOTED_VAR_P
	subreg.  Generate ZERO_EXTEND of the SUBREG_REG when a subreg
	would be paradoxical.

2021-08-31  Roger Sayle  <roger@nextmovesoftware.com>

	* combine.c (combine_simplify_rtx): Avoid converting an explicit
	TRUNCATE into a lowpart SUBREG on !TRULY_NOOP_TRUNCATION targets.
	* simplify-rtx.c (simplify_unary_operation_1): Likewise.

2021-08-31  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102142
	* tree-vect-slp.c (vect_bb_vectorization_profitable_p): Fix
	condition under which to unset the visited flag.

2021-08-31  Richard Biener  <rguenther@suse.de>

	PR middle-end/102129
	* tree-ssa-ter.c (find_replaceable_in_bb): Do not move
	possibly trapping expressions across calls.

2021-08-31  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/102134
	* tree-ssa-ccp.c (bit_value_binop) <case RSHIFT_EXPR>: If sgn is
	UNSIGNED and r1val | r1mask has MSB set, ensure lzcount doesn't
	become negative.

2021-08-31  Andrew Pinski  <apinski@marvell.com>

	PR driver/79181
	* collect-utils.c (setup_signals): New declaration.
	* collect-utils.h (setup_signals): New function.
	* collect2.c (handler): Delete.
	(main): Instead of manually setting up the signals,
	just call setup_signals.
	* lto-wrapper.c (main): Likewise.

2021-08-31  Andrew Pinski  <apinski@marvell.com>

	PR target/56337
	* config/i386/i386-protos.h (x86_output_aligned_bss):
	Change align argument to unsigned type.
	(x86_elf_aligned_decl_common): Likewise.
	* config/i386/i386.c (x86_elf_aligned_decl_common): Likewise.
	(x86_output_aligned_bss): Likewise.

2021-08-31  YunQiang Su  <yunqiang.su@cipunited.com>

	* config/mips/mips.c (mips_module_isa_name): New.
	  mips_file_start: add .module mipsREV to all asm output

2021-08-31  YunQiang Su  <yunqiang.su@cipunited.com>

	* config/mips/mips.h (struct mips_cpu_info): define enum mips_isa;
	  use enum instead of int for 'isa' member.
	* config.gcc, config/mips/mips.c, config/mips/mips-cpus.def,
	  config/mips/netbsd.h: replace hardcoded numbers with enum.

2021-08-31  liuhongt  <hongtao.liu@intel.com>

	* config/i386/sse.md (*<avx512>_ucmp<mode>3_1): Change from
	define_split to define_insn_and_split.
	(*avx2_eq<mode>3): Removed.
	(<avx512>_eq<mode>3<mask_scalar_merge_name>): Adjust pattern
	(<avx512>_eq<mode>3<mask_scalar_merge_name>_1): Rename to ..
	(*<avx512>_eq<mode>3<mask_scalar_merge_name>_1): .. this, and
	adjust pattern.
	(*avx2_gt<mode>3): Removed.
	(<avx512>_gt<mode>3<mask_scalar_merge_name>): Change from
	define_insn to define_expand, and adjust pattern.
	(UNSPEC_MASKED_EQ, UNSPEC_MASKED_GT): Removed.

2021-08-30  David Malcolm  <dmalcolm@redhat.com>

	PR analyzer/99260
	* Makefile.in (ANALYZER_OBJS): Add analyzer/call-info.o.

2021-08-30  Jason Merrill  <jason@redhat.com>

	* doc/invoke.texi: Document -Wmissing-requires.

2021-08-30  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-call.c (rs6000_init_builtins): Remove
	TARGET_EXTRA_BUILTINS guard.

2021-08-30  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-call.c (rs6000_init_builtins): Change
	initialization of V2DI_type_node and unsigned_V2DI_type_node.

2021-08-30  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/darwin.h (SUBTARGET_INIT_BUILTINS): Use the new
	decl when new_builtins_are_live.
	* config/rs6000/rs6000-builtin-new.def (__builtin_cfstring): New
	built-in.

2021-08-30  Pat Haugen  <pthaugen@linux.ibm.com>

	* config/rs6000/rs6000-cpus.def (ISA_3_1_MASKS_SERVER): Add
	OPTION_MASK_P10_FUSION_2STORE.
	(POWERPC_MASKS): Likewise.
	* config/rs6000/rs6000.c (rs6000_option_override_internal): Enable
	store fusion for Power10.
	(is_fusable_store): New.
	(power10_sched_reorder): Likewise.
	(rs6000_sched_reorder): Do Power10 specific reordering.
	(rs6000_sched_reorder2): Likewise.
	* config/rs6000/rs6000.opt: Add new option.

2021-08-30  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102128
	* tree-vect-slp.c (vect_bb_vectorization_profitable_p):
	Move scanning for if-converted scalar code to the caller
	and instead delay clearing the visited flag for profitable
	subgraphs.
	(vect_slp_region): Cost all subgraphs before scheduling.
	For if-converted BB vectorization scan for scalar COND_EXPRs
	and do not vectorize if any found and the cost model is
	very-cheap.

2021-08-30  Richard Biener  <rguenther@suse.de>

	* common.opt (fexceptions): Mark
	EnabledBy(fnon-call-exceptions).
	* doc/invoke.texi (fnon-call-exceptions): Document this
	enables -fexceptions.

2021-08-30  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* tsystem.h (abort): Define abort() if inhibit_libc is defined and it
	is not already defined.

2021-08-30  liuhongt  <hongtao.liu@intel.com>

	* expmed.c (extract_bit_field_1): Make sure we're playing with
	integral modes before call extract_integral_bit_field.
	(extract_integral_bit_field): Add a parameter of type
	scalar_int_mode which corresponds to of tmode.
	And call extract_and_convert_fixed_bit_field instead of
	extract_fixed_bit_field and convert_extracted_bit_field.
	(extract_and_convert_fixed_bit_field): New function, it's a
	combination of extract_fixed_bit_field and
	convert_extracted_bit_field.

2021-08-29  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.c (darwin_libc_has_function): Do not run
	the checks for x86 or modern Darwin.  Make sure that there
	is a value set for darwin_macosx_version_min before testing.

2021-08-29  Iain Sandoe  <iain@sandoe.co.uk>

	* config/i386/darwin.h (CLEAR_INSN_CACHE): New.

2021-08-28  Jan Hubicka  <hubicka@ucw.cz>

	* ipa-modref-tree.h (modref_access_node::merge): Break out
	logic combining offsets and logic merging ranges to ...
	(modref_access_node::combined_offsets): ... here
	(modref_access_node::update2): ... here
	(modref_access_node::closer_pair_p): New member function.
	(modref_access_node::forced_merge): New member function.
	(modre_ref_node::insert): Do merging when table is full.

2021-08-28  YunQiang Su  <yunqiang.su@cipunited.com>

	PR target/102089
	* config.gcc: MIPS: use N64 ABI by default if the triple end
	  with -gnuabi64, which is used by Debian since 2013.

2021-08-28  Alexandre Oliva  <oliva@adacore.com>

	* ipa-modref.c (analyze_function): Skip debug stmts.
	* tree-inline.c (estimate_num_insn): Consider builtins even
	without a cgraph_node.

2021-08-27  Jeff Law  <jlaw@localhost.localdomain>

	* config/h8300/bitfield.md (cstore<mode>4): Remove expander.
	* config/h8300/h8300.c (h8300_expand_branch): Remove function.
	* config/h8300/h8300-protos.h (h8300_expadn_branch): Remove prototype.
	* config/h8300/h8300.md (eqne): New code iterator.
	(geultu, geultu_to_c): Similarly.
	* config/h8300/testcompare.md (cstore<mode>4): Dummy expander.
	(store_c_<mode>, store_c_i_<mode>): New define_insn_and_splits
	(cmp<mode>_c): New pattern

2021-08-27  Jeff Law  <jlaw@localhost.localdomain>

	* tree-ssa-dom.c (reduce_vector_comparison_to_scalar_comparison): New
	function.
	(dom_opt_dom_walker::optimize_stmt): Use it.

2021-08-27  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.c (finalize_ctors): Add a section-start linker-
	visible symbol.
	(finalize_dtors): Likewise.
	* config/darwin.h (MIN_LD64_INIT_TERM_START_LABELS): New.

2021-08-27  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-call.c (rs6000-builtins.h): New #include.
	(rs6000_init_builtins): Call rs6000_init_generated_builtins.  Skip the
	old initialization logic when new builtins are enabled.
	* config/rs6000/rs6000-gen-builtins.c (write_decls): Rename
	rs6000_autoinit_builtins to rs6000_init_generated_builtins.
	(write_init_file): Likewise.

2021-08-27  Iain Sandoe  <iain@sandoe.co.uk>

	* configure.ac (darwin2[[0-9]]* | darwin19*): Alter use of
	gcc_GAS_CHECK_FEATURE to remove an extraneous parameter.
	(amdgcn-* | gcn-*) Likewise.

2021-08-27  Anthony Sharp  <anthonysharp15@gmail.com>

	* symbol-summary.h: Added missing template keyword.

2021-08-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/45178
	* tree-ssa-dce.c (find_obviously_necessary_stmts): For
	infinite loops without exit do not mark control dependent
	edges of the latch necessary.

2021-08-27  konglin1  <lingling.kong@intel.com>

	PR target/101472
	* config/i386/sse.md: (<avx512>scattersi<mode>): Add mask operand to
	UNSPEC_VSIBADDR.
	(<avx512>scattersi<mode>): Likewise.
	(*avx512f_scattersi<VI48F:mode>): Merge mask operand to set_dest.
	(*avx512f_scatterdi<VI48F:mode>): Likewise

2021-08-27  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/rs6000.c (rs6000_builtin_md_vectorized_function): Add
	support for built-in functions MISC_BUILTIN_DIVWE, MISC_BUILTIN_DIVWEU,
	MISC_BUILTIN_DIVDE, MISC_BUILTIN_DIVDEU, P10_BUILTIN_CFUGED,
	P10_BUILTIN_CNTLZDM, P10_BUILTIN_CNTTZDM, P10_BUILTIN_PDEPD and
	P10_BUILTIN_PEXTD on Power10.

2021-08-27  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/rs6000-call.c (builtin_function_type): Add unsigned
	signedness for some Power10 bifs.

2021-08-27  David Edelsohn  <dje.gcc@gmail.com>

	PR target/102068
	* config/rs6000/rs6000.c (rs6000_adjust_field_align): Use
	computed alignment if the entire struct has attribute packed.

2021-08-27  liuhongt  <hongtao.liu@intel.com>

	PR target/98167
	PR target/43147
	* config/i386/i386.c (ix86_gimple_fold_builtin): Fold
	IX86_BUILTIN_SHUFPD512, IX86_BUILTIN_SHUFPS512,
	IX86_BUILTIN_SHUFPD256， IX86_BUILTIN_SHUFPS，
	IX86_BUILTIN_SHUFPS256.
	(ix86_masked_all_ones): New function.

2021-08-26  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (*btr<mode>_1): Call force_reg unconditionally.
	(conditional moves with memory inputs splitters): Ditto.
	* config/i386/sse.md (one_cmpl<mode>2): Simplify.

2021-08-26  Jan Hubicka  <hubicka@ucw.cz>

	* ipa-modref-tree.h (modref_access_node::try_merge_with): Restart
	search after merging.

2021-08-26  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-overload.def: Add remaining overloads.

2021-08-26  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def: Add cell stanza.

2021-08-26  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def: Add ieee128-hw, dfp,
	crypto, and htm stanzas.

2021-08-26  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def: Add mma stanza.

2021-08-26  Martin Sebor  <msebor@redhat.com>

	* tree-ssa-uninit.c (warn_uninit): Refactor and simplify.
	(warn_uninit_phi_uses): Remove argument from calls to warn_uninit.
	(warn_uninitialized_vars): Same.  Reduce visibility of locals.
	(warn_uninitialized_phi): Same.

2021-08-26  Roger Sayle  <roger@nextmovesoftware.com>

	* tree-ssa-ccp.c (get_individual_bits): Helper function to
	extract the individual bits from a widest_int constant (mask).
	(gray_code_bit_flips): New read-only table for effiently
	enumerating permutations/combinations of bits.
	(bit_value_binop) [LROTATE_EXPR, RROTATE_EXPR]: Handle rotates
	by unknown counts that are guaranteed less than the target
	precision and four or fewer unknown bits by enumeration.
	[LSHIFT_EXPR, RSHIFT_EXPR]: Likewise, also handle shifts by
	enumeration under the same conditions.  Handle remaining
	shifts as a mask based upon the minimum possible shift value.

2021-08-26  Roger Sayle  <roger@nextmovesoftware.com>
	    Richard Biener  <rguenther@suse.de>

	* match.pd (shift transformations): Remove a redundant
	!POINTER_TYPE_P check.

2021-08-26  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/102057
	* config/i386/i386.md (cmove reg-reg move elimination peephole2s):
	Set all_regs to true in the call to replace_rtx.

2021-08-26  Jan Hubicka  <hubicka@ucw.cz>

	* ipa-modref-tree.c (test_insert_search_collapse): Update test.
	* ipa-modref-tree.h (modref_base_node::insert): Be smarter when
	hiting --param modref-max-refs limit.
	(modref_tree:insert_base): Be smarter when hitting
	--param modref-max-bases limit. Add new parameter REF.
	(modref_tree:insert): Update.
	(modref_tree:merge): Update.
	* ipa-modref.c (read_modref_records): Update.

2021-08-26  Jan Hubicka  <hubicka@ucw.cz>

	* params.opt: (modref-max-adjustments): Add full stop.

2021-08-26  Jan Hubicka  <hubicka@ucw.cz>

	* ipa-modref-tree.h (modref_ref_node::verify): New member
	functoin.
	(modref_ref_node::insert): Use it.
	(modref_ref_node::try_mere_with): Fix off by one error.

2021-08-26  Martin Liska  <mliska@suse.cz>
	    Stefan Kneifel  <stefan.kneifel@bluewin.ch>

	* cgraph.h (create_version_clone_with_body): Add new parameter.
	* cgraphclones.c: Likewise.
	* multiple_target.c (create_dispatcher_calls): Do not use
	numbered suffixes.
	(create_target_clone): Likewise here.

2021-08-26  Jonathan Yong  <10walls@gmail.com>

	* doc/extend.texi: Add note about reserved priorities
	to the constructor attribute.

2021-08-25  Martin Sebor  <msebor@redhat.com>

	* gimple-range-cache.cc (ssa_global_cache::dump): Avoid printing
	range table header alone.
	* gimple-range.cc (gimple_ranger::export_global_ranges): Same.

2021-08-25  Jan Hubicka  <hubicka@ucw.cz>

	* doc/invoke.texi: Document --param modref-max-adjustments.
	* ipa-modref-tree.c (test_insert_search_collapse): Update.
	(test_merge): Update.
	* ipa-modref-tree.h (struct modref_access_node): Add adjustments;
	(modref_access_node::operator==): Fix handling of access ranges.
	(modref_access_node::contains): Constify parameter; handle also
	mismatched parm offsets.
	(modref_access_node::update): New function.
	(modref_access_node::merge): New function.
	(unspecified_modref_access_node): Update constructor.
	(modref_ref_node::insert_access): Add record_adjustments parameter;
	handle merging.
	(modref_ref_node::try_merge_with): New private function.
	(modref_tree::insert): New record_adjustments parameter.
	(modref_tree::merge): New record_adjustments parameter.
	(modref_tree::copy_from): Update.
	* ipa-modref.c (dump_access): Dump adjustments field.
	(get_access): Update constructor.
	(record_access): Update call of insert.
	(record_access_lto): Update call of insert.
	(merge_call_side_effects): Add record_adjustments parameter.
	(get_access_for_fnspec): Update.
	(process_fnspec): Update.
	(analyze_call): Update.
	(analyze_function): Update.
	(read_modref_records): Update.
	(ipa_merge_modref_summary_after_inlining): Update.
	(propagate_unknown_call): Update.
	(modref_propagate_in_scc): Update.
	* params.opt (param-max-modref-adjustments=): New.

2021-08-25  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/vsx.md (UNSPEC_XXSPLTIDP): Rename from
	UNSPEC_XXSPLTID.
	(xxspltiw_v4si): Use vecperm type attribute.
	(xxspltiw_v4si_inst): Use vecperm type attribute.
	(xxspltiw_v4sf_inst): Likewise.
	(xxspltidp_v2df): Use vecperm type attribute.  Use
	UNSPEC_XXSPLTIDP instead of UNSPEC_XXSPLTID.
	(xxspltidp_v2df_inst): Likewise.
	(xxsplti32dx_v4si): Use vecperm type attribute.
	(xxsplti32dx_v4si_inst): Likewise.
	(xxsplti32dx_v4sf_inst): Likewise.
	(xxblend_<mode>): Likewise.
	(xxpermx): Likewise.
	(xxpermx_inst): Likewise.
	(xxeval): Likewise.

2021-08-25  Lewis Hyatt  <lhyatt@gmail.com>

	PR other/93067
	* coretypes.h (typedef diagnostic_input_charset_callback): Declare.
	* diagnostic.c (diagnostic_initialize_input_context): New function.
	* diagnostic.h (diagnostic_initialize_input_context): Declare.
	* input.c (default_charset_callback): New function.
	(file_cache::initialize_input_context): New function.
	(file_cache_slot::create): Added ability to convert the input
	according to the input context.
	(file_cache::file_cache): Initialize the new input context.
	(class file_cache_slot): Added new m_alloc_offset member.
	(file_cache_slot::file_cache_slot): Initialize the new member.
	(file_cache_slot::~file_cache_slot): Handle potentially offset buffer.
	(file_cache_slot::maybe_grow): Likewise.
	(file_cache_slot::needs_read_p): Handle NULL fp, which is now possible.
	(file_cache_slot::get_next_line): Likewise.
	* input.h (class file_cache): Added input context member.

2021-08-25  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102046
	* tree-vect-slp.c (vect_build_slp_tree_2): Conservatively
	update ->any_pattern when swapping operands.

2021-08-25  Hongyu Wang  <hongyu.wang@intel.com>

	PR target/101716
	* config/i386/i386.c (ix86_live_on_entry): Adjust comment.
	(ix86_decompose_address): Remove retval check for ASHIFT,
	allow non-canonical zero extend if AND mask covers ASHIFT
	count.
	(ix86_legitimate_address_p): Adjust condition for decompose.
	(ix86_rtx_costs): Adjust cost for lea with non-canonical
	zero-extend.
	Co-Authored by: Uros Bizjak <ubizjak@gmail.com>

2021-08-25  Jiufu Guo  <guojiufu@linux.ibm.com>

	PR tree-optimization/101145
	* tree-ssa-loop-niter.c (number_of_iterations_until_wrap):
	New function.
	(number_of_iterations_lt): Invoke above function.
	(adjust_cond_for_loop_until_wrap):
	Merge to number_of_iterations_until_wrap.
	(number_of_iterations_cond): Update invokes for
	adjust_cond_for_loop_until_wrap and number_of_iterations_lt.

2021-08-25  konglin1  <lingling.kong@intel.com>

	PR target/101471
	* config/i386/avx512dqintrin.h (_mm512_fpclass_ps_mask): Fix
	macro define in O0.
	(_mm512_mask_fpclass_ps_mask): Ditto.

2021-08-25  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/altivec.md (vec_unpacku_hi_v16qi): Remove.
	(vec_unpacku_hi_v8hi): Likewise.
	(vec_unpacku_lo_v16qi): Likewise.
	(vec_unpacku_lo_v8hi): Likewise.
	(vec_unpacku_hi_<VP_small_lc>): New define_expand.
	(vec_unpacku_lo_<VP_small_lc>): Likewise.

2021-08-24  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/aix.h (SYSTEM_IMPLICIT_EXTERN_C): Delete.
	* config/rs6000/aix71.h (SYSTEM_IMPLICIT_EXTERN_C): Define.
	* config/rs6000/aix72.h (SYSTEM_IMPLICIT_EXTERN_C): Define.
	* config/rs6000/aix73.h (TARGET_AIX_VERSION): Increase to 73.

2021-08-24  Roger Sayle  <roger@nextmovesoftware.com>

	PR middle-end/102031
	* simplify-rtx.c (simplify_truncation): When comparing precisions
	use "subreg_prec" variable, not "subreg_mode".

2021-08-24  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def: Add power10 and power10-64
	stanzas.

2021-08-24  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-call.c (rs6000_init_builtins): Initialize
	various pointer type nodes.
	* config/rs6000/rs6000.h (rs6000_builtin_type_index): Add enum
	values for various pointer types.
	(ptr_V16QI_type_node): New macro.
	(ptr_V1TI_type_node): New macro.
	(ptr_V2DI_type_node): New macro.
	(ptr_V2DF_type_node): New macro.
	(ptr_V4SI_type_node): New macro.
	(ptr_V4SF_type_node): New macro.
	(ptr_V8HI_type_node): New macro.
	(ptr_unsigned_V16QI_type_node): New macro.
	(ptr_unsigned_V1TI_type_node): New macro.
	(ptr_unsigned_V8HI_type_node): New macro.
	(ptr_unsigned_V4SI_type_node): New macro.
	(ptr_unsigned_V2DI_type_node): New macro.
	(ptr_bool_V16QI_type_node): New macro.
	(ptr_bool_V8HI_type_node): New macro.
	(ptr_bool_V4SI_type_node): New macro.
	(ptr_bool_V2DI_type_node): New macro.
	(ptr_bool_V1TI_type_node): New macro.
	(ptr_pixel_type_node): New macro.
	(ptr_intQI_type_node): New macro.
	(ptr_uintQI_type_node): New macro.
	(ptr_intHI_type_node): New macro.
	(ptr_uintHI_type_node): New macro.
	(ptr_intSI_type_node): New macro.
	(ptr_uintSI_type_node): New macro.
	(ptr_intDI_type_node): New macro.
	(ptr_uintDI_type_node): New macro.
	(ptr_intTI_type_node): New macro.
	(ptr_uintTI_type_node): New macro.
	(ptr_long_integer_type_node): New macro.
	(ptr_long_unsigned_type_node): New macro.
	(ptr_float_type_node): New macro.
	(ptr_double_type_node): New macro.
	(ptr_long_double_type_node): New macro.
	(ptr_dfloat64_type_node): New macro.
	(ptr_dfloat128_type_node): New macro.
	(ptr_ieee128_type_node): New macro.
	(ptr_ibm128_type_node): New macro.
	(ptr_vector_pair_type_node): New macro.
	(ptr_vector_quad_type_node): New macro.
	(ptr_long_long_integer_type_node): New macro.
	(ptr_long_long_unsigned_type_node): New macro.

2021-08-24  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def: Add power9-vector, power9,
	and power9-64 stanzas.

2021-08-24  Roger Sayle  <roger@nextmovesoftware.com>
	    Tom de Vries  <tdevries@suse.de>

	* config.gcc (nvptx-*-*): Define {c,c++}_target_objs.
	* config/nvptx/nvptx-protos.h (nvptx_cpu_cpp_builtins): Prototype.
	* config/nvptx/nvptx.h (TARGET_CPU_CPP_BUILTINS): Implement with
	a call to the new nvptx_cpu_cpp_builtins function in nvptx-c.c.
	* config/nvptx/t-nvptx (nvptx-c.o): New rule.
	* config/nvptx/nvptx-c.c: New source file.
	(nvptx_cpu_cpp_builtins): Move implementation here.

2021-08-24  Martin Sebor  <msebor@redhat.com>

	PR middle-end/101600
	PR middle-end/101977
	* gimple-ssa-warn-access.cc (maybe_warn_for_bound): Tighten up
	the phrasing of a warning.
	(check_access): Use the remaining size after subtracting any offset
	rather than the whole object size.
	* pointer-query.cc (access_ref::get_ref): Clear BASE0 flag if it's
	clear for any nonnull PHI argument.
	(compute_objsize): Clear argument.

2021-08-24  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def: Add power8-vector stanza.

2021-08-24  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def: Add power7 and power7-64
	stanzas.

2021-08-24  Andrew MacLeod  <amacleod@redhat.com>

	* value-relation.cc (rr_transitive_table): New.
	(relation_transitive): New.
	(value_relation::swap): Remove.
	(value_relation::apply_transitive): New.
	(relation_oracle::relation_oracle): Allocate a new tmp bitmap.
	(relation_oracle::register_relation): Call register_transitives.
	(relation_oracle::register_transitives): New.
	* value-relation.h (relation_oracle): Add new temporary bitmap and
	methods.

2021-08-24  H.J. Lu  <hjl.tools@gmail.com>

	PR target/102021
	* config/i386/i386-expand.c (ix86_expand_vector_move): Broadcast
	from integer to a pseudo vector register.

2021-08-24  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100089
	* tree-vectorizer.h (vect_slp_bb): Rename to ...
	(vect_slp_if_converted_bb): ... this and get the original
	loop as new argument.
	* tree-vectorizer.c (try_vectorize_loop_1): Revert previous fix,
	pass original loop to vect_slp_if_converted_bb.
	* tree-vect-slp.c (vect_bb_vectorization_profitable_p):
	If orig_loop was passed scan the not vectorized stmts
	for COND_EXPRs and force not profitable if found.
	(vect_slp_region): Pass down all SLP instances to costing
	if orig_loop was specified.
	(vect_slp_bbs): Pass through orig_loop.
	(vect_slp_bb): Rename to ...
	(vect_slp_if_converted_bb): ... this and get the original
	loop as new argument.
	(vect_slp_function): Adjust.

2021-08-24  Richard Earnshaw  <rearnsha@arm.com>

	PR target/102035
	* config/arm/arm.md (attribute arch): Add fix_vlldm.
	(arch_enabled): Use it.
	* config/arm/vfp.md (lazy_store_multiple_insn): Add alternative to
	use when erratum mitigation is needed.

2021-08-24  Richard Earnshaw  <rearnsha@arm.com>

	PR target/102035
	* config/arm/arm.opt (mfix-cmse-cve-2021-35465): New option.
	* doc/invoke.texi (Arm Options): Document it.
	* config/arm/arm-cpus.in (quirk_vlldm): New feature bit.
	(ALL_QUIRKS): Add quirk_vlldm.
	(cortex-m33): Add quirk_vlldm.
	(cortex-m35p, cortex-m55): Likewise.
	* config/arm/arm.c (arm_option_override): Enable fix_vlldm if
	targetting an affected CPU and not explicitly controlled on
	the command line.

2021-08-24  Richard Earnshaw  <rearnsha@arm.com>

	* config/arm/vfp.md (lazy_store_multiple_insn): Rewrite as valid RTL.
	(lazy_load_multiple_insn): Likewise.

2021-08-24  liuhongt  <hongtao.liu@intel.com>

	PR target/101989
	* config/i386/sse.md (<avx512>_vternlog<mode><sd_maskz_name>):
	Enable avx512 embedded broadcast.
	(*<avx512>_vternlog<mode>_all): Ditto.
	(<avx512>_vternlog<mode>_mask): Ditto.

2021-08-24  liuhongt  <hongtao.liu@intel.com>

	PR target/101989
	* config/i386/i386.c (ix86_rtx_costs): Define cost for
	UNSPEC_VTERNLOG.
	* config/i386/i386.h (STRIP_UNARY): New macro.
	* config/i386/predicates.md (reg_or_notreg_operand): New
	predicate.
	* config/i386/sse.md (*<avx512>_vternlog<mode>_all): New define_insn.
	(*<avx512>_vternlog<mode>_1): New pre_reload
	define_insn_and_split.
	(*<avx512>_vternlog<mode>_2): Ditto.
	(*<avx512>_vternlog<mode>_3): Ditto.
	(any_logic1,any_logic2): New code iterator.
	(logic_op): New code attribute.
	(ternlogsuffix): Extend to VNxDF and VNxSF.

2021-08-24  Richard Biener  <rguenther@suse.de>

	* doc/invoke.texi (vect-inner-loop-cost-factor): Adjust.
	* params.opt (--param vect-inner-loop-cost-factor): Adjust
	maximum value.
	* tree-vect-loop.c (vect_analyze_loop_form): Initialize
	inner_loop_cost_factor to the minimum of the estimated number
	of iterations of the inner loop and vect-inner-loop-cost-factor.

2021-08-24  Roger Sayle  <roger@nextmovesoftware.com>
	    Richard Biener  <rguenther@suse.de>

	* config/i386/i386-features.c (compute_convert_gain): Provide
	more accurate values for CONST_INT, when optimizing for size.
	* config/i386/i386.c (COSTS_N_BYTES): Move definition from here...
	* config/i386/i386.h (COSTS_N_BYTES): to here.

2021-08-24  Roger Sayle  <roger@nextmovesoftware.com>
	    Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/102029
	* match.pd (shift transformations): Add an additional check for
	!POINTER_TYPE_P in the recently added left shift transformation.

2021-08-24  liuhongt  <hongtao.liu@intel.com>

	PR tree-optimization/100089
	* tree-vectorizer.c (try_vectorize_loop_1): Disable slp in
	loop vectorizer when cost model is very-cheap.

2021-08-23  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (parse_bif_entry): Don't call
	asprintf, which is not available on AIX.

2021-08-23  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config.gcc (target_gtfiles): Add ./rs6000-builtins.h.
	* config/rs6000/t-rs6000 (EXTRA_GTYPE_DEPS): Set.

2021-08-23  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config.gcc (powerpc*-*-*): Add rs6000-builtins.o to extra_objs.
	* config/rs6000/rs6000-gen-builtins.c (main): Close init_file
	last.
	* config/rs6000/t-rs6000 (rs6000-gen-builtins.o): New target.
	(rbtree.o): Likewise.
	(rs6000-gen-builtins): Likewise.
	(rs6000-builtins.c): Likewise.
	(rs6000-builtins.h): Likewise.
	(rs6000.o): Add dependency.
	(EXTRA_HEADERS): Add rs6000-vecdefines.h.
	(rs6000-vecdefines.h): New target.
	(rs6000-builtins.o): Likewise.
	(rs6000-call.o): Add rs6000-builtins.h as a dependency.
	(rs6000-c.o): Likewise.

2021-08-23  Bill Schmidt  <wschmidt@linux.ibm.com>

	PR target/101830
	* config/rs6000/rs6000-gen-builtins.c (consume_whitespace):
	Diagnose buffer overrun.
	(safe_inc_pos): Fix overrun detection.
	(match_identifier): Diagnose buffer overrun.
	(match_integer): Likewise.
	(match_to_right_bracket): Likewise.

2021-08-23  Jan Hubicka  <hubicka@ucw.cz>

	* ipa-modref-tree.h (modref_access_node::range_info_useful_p):
	Improve range compare.
	(modref_access_node::contains): New member function.
	(modref_access_node::search): Remove.
	(modref_access_node::insert): Be smarter about subaccesses.

2021-08-23  Thomas Schwinge  <thomas@codesourcery.com>

	* config/i386/i386-options.c (ix86_omp_device_kind_arch_isa)
	<omp_device_arch> [ACCEL_COMPILER]: Match "intel_mic".
	* config/i386/t-omp-device (omp-device-properties-i386) <arch>:
	Add "intel_mic".

2021-08-23  Jeff Law  <jlaw@localhost.localdomain>

	* config/h8300/h8300-protos.h (h8300_expand_epilogue): Add new
	argument.
	* config/h8300/jumpcall.md (call, call_value): Restrict to
	!SIBLING_CALL_P cases.
	(subcall, sibcall_value): New patterns & expanders.
	* config/h8300/proepi.md (epilogue): Pass new argument to
	h8300_expand_epilogue.
	(sibcall_epilogue): New expander.
	* config/h8300/h8300.c (h8300_expand_epilogue): Handle sibcall
	epilogues too.
	(h8300_ok_for_sibcall_p): New function.
	(TARGET_FUNCTION_OK_FOR_SIBCALL): define.

2021-08-23  Roger Sayle  <roger@nextmovesoftware.com>

	* simplify-rtx.c (simplify_unary_operation_1): [TRUNCATE]:
	Handle case where the operand is already the desired mode.

2021-08-23  Richard Biener  <rguenther@suse.de>

	PR ipa/97565
	* tree-ssa-structalias.c (ipa_pta_execute): Check in_other_partition
	in addition to has_gimple_body.

2021-08-23  Jan Hubicka  <hubicka@ucw.cz>

	PR middle-end/101949
	* ipa-modref.c (analyze_ssa_name_flags): Fix merging of
	EAF_NOCLOBBER

2021-08-23  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Put the option out of -mxl-mode-app-model
	table.

2021-08-23  Richard Biener  <rguenther@suse.de>

	* tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
	Properly scale the inner loop cost only once.

2021-08-23  Roger Sayle  <roger@nextmovesoftware.com>

	* tree-ssa-ccp.c (bit_value_binop) [TRUNC_MOD_EXPR, TRUNC_DIV_EXPR]:
	Provide bounds for unsigned (and signed with non-negative operands)
	division and modulus.

2021-08-23  Roger Sayle  <roger@nextmovesoftware.com>

	* simplify-rtx.c (simplify_truncation): Generalize simplification
	of (truncate:A (subreg:B X)).
	(simplify_unary_operation_1) [FLOAT_TRUNCATE, FLOAT_EXTEND,
	SIGN_EXTEND, ZERO_EXTEND]: Handle cases where the operand
	already has the desired machine mode.
	(test_scalar_int_ops): Add tests that useless extensions and
	truncations are optimized away.
	(test_scalar_int_ext_ops): New self-test function to confirm
	that truncations of extensions are correctly simplified.
	(test_scalar_int_ext_ops2): New self-test function to check
	truncations of truncations, extensions of extensions, and
	truncations of extensions.
	(test_scalar_ops): Call the above two functions with a
	representative sampling of integer machine modes.

2021-08-23  Roger Sayle  <roger@nextmovesoftware.com>

	* match.pd (shift transformations): Change the sign of an
	LSHIFT_EXPR if it reduces the number of explicit conversions.

2021-08-23  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/86723
	* gimple-ssa-store-merging.c (find_bswap_or_nop_finalize): Add
	cast64_to_32 argument, set *cast64_to_32 to false, unless n is
	non-memory permutation of 64-bit src which only has bytes of
	0 or [5..8] and n->range is 4.
	(find_bswap_or_nop): Add cast64_to_32 and mask arguments, adjust
	find_bswap_or_nop_finalize caller, support bswap with some bytes
	zeroed, as long as at least two bytes are not zeroed.
	(bswap_replace): Add mask argument and handle masking of bswap
	result.
	(maybe_optimize_vector_constructor): Adjust find_bswap_or_nop
	caller, punt if cast64_to_32 or mask is not all ones.
	(pass_optimize_bswap::execute): Adjust find_bswap_or_nop_finalize
	caller, for now punt if cast64_to_32.

2021-08-23  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/79334
	* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Record
	a type also for COMPONENT_REFs.
	(vn_reference_may_trap): Check ARRAY_REF with constant index
	against the array domain.

2021-08-23  liuhongt  <hongtao.liu@intel.com>

	PR target/102016
	* config/i386/sse.md (*avx512f_pshufb_truncv8hiv8qi_1): Add
	TARGET_AVX512BW to condition.

2021-08-23  Jakub Jelinek  <jakub@redhat.com>

	PR debug/101905
	* dwarf2out.c (gen_variable_die): Add DW_AT_location for global
	register variables already during early_dwarf if possible.

2021-08-23  Christophe Lyon  <christophe.lyon@foss.st.com>

	* config/arm/arm_mve.h: Fix __arm_vctp16q return type.

2021-08-23  Christophe Lyon  <christophe.lyon@foss.st.com>

	PR target/100856
	* config/arm/arm.opt: Fix typo.
	* config/arm/t-rmprofile: Fix typo.

2021-08-23  Jakub Jelinek  <jakub@redhat.com>

	* tree.h (OMP_CLAUSE_GRAINSIZE_STRICT): Define.
	(OMP_CLAUSE_NUM_TASKS_STRICT): Define.
	* tree-pretty-print.c (dump_omp_clause) <case OMP_CLAUSE_GRAINSIZE,
	case OMP_CLAUSE_NUM_TASKS>: Print strict: modifier.
	* omp-expand.c (expand_task_call): Use GOMP_TASK_FLAG_STRICT in iflags
	if either grainsize or num_tasks clause has the strict modifier.

2021-08-23  Martin Liska  <mliska@suse.cz>

	* dbgcnt.def (DEBUG_COUNTER): New counter.
	* gimple.c (gimple_call_arg_flags): Use it in IPA PTA.

2021-08-23  Jan Hubicka  <hubicka@ucw.cz>

	* ipa-modref.c (analyze_ssa_name_flags): Improve handling of return slot.

2021-08-23  Xi Ruoyao  <xry111@mengyan1223.wang>

	PR target/101922
	* config/mips/mips-protos.h (mips_msa_output_shift_immediate):
	  Declare.
	* config/mips/mips.c (mips_msa_output_shift_immediate): New
	  function.
	* config/mips/mips-msa.md (vashl<mode>3, vashr<mode>3,
	  vlshr<mode>3): Call it.

2021-08-22  Jan Hubicka  <hubicka@ucw.cz>
	    Martin Liska  <mliska@suse.cz>

	PR middle-end/101949
	* ipa-modref.c (analyze_ssa_name_flags): Indirect call implies
	~EAF_NOCLOBBER.

2021-08-21  Dragan Mladjenovic  <OT_Dragan.Mladjenovic@mediatek.com>

	* config/mips/mips.c (mips_function_rodata_section,
	TARGET_ASM_FUNCTION_RODATA_SECTION): Removed.

2021-08-21  John David Anglin  <danglin@gcc.gnu.org>

	* config/pa/pa.c (pa_asm_output_aligned_common): Remove warning.

2021-08-20  Serge Belyshev  <belyshev@depni.sinp.msu.ru>

	* configure.ac (thread-local storage support): Remove tls_first_major
	and tls_first_minor.  Use "$conftest_s" to check support.
	* configure: Regenerate.

2021-08-20  Serge Belyshev  <belyshev@depni.sinp.msu.ru>

	* configure.ac: Fixup formatting.

2021-08-20  Serge Belyshev  <belyshev@depni.sinp.msu.ru>

	* acinclude.m4 (gcc_GAS_CHECK_FEATURE): Remove third argument and ...
	* configure.ac: ... update all callers.

2021-08-20  Serge Belyshev  <belyshev@depni.sinp.msu.ru>

	PR target/91602
	* acinclude.m4 (_gcc_COMPUTE_GAS_VERSION, _gcc_GAS_VERSION_GTE_IFELSE)
	(gcc_GAS_VERSION_GTE_IFELSE): Remove.
	(gcc_GAS_CHECK_FEATURE): Do not handle in-tree case specially.
	* configure.ac: Remove gcc_cv_gas_major_version, gcc_cv_gas_minor_version.
	Remove remaining checks for in-tree assembler.
	* configure: Regenerate.

2021-08-20  Jeff Law  <jlaw@localhost.localdomain>

	* config/h8300/h8300.c (shift_alg_hi): Improve arithmetic shift right
	by 15 bits for H8/300H and H8/S.  Improve logical shifts by 12
	bits for H8/S.
	(shift_alg_si): Improve arithmetic right shift by 28-30 bits for
	H8/300H.  Improve arithmetic shift right by 15 bits for H8/S.
	Improve logical shifts by 27 bits for H8/S.
	(get_shift_alg): Corresponding changes.
	(h8300_option_override): Revert to loops for -Os when profitable.

2021-08-20  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (dr_group_sort_cmp): Do not compare
	BBs.
	(vect_analyze_data_ref_accesses): Likewise.  Assign the BB
	index as group_id when dataref_groups were not computed.
	* tree-vect-slp.c (vect_slp_bbs): Bump current_group when
	we advace to the next BB.

2021-08-20  Jakub Jelinek  <jakub@redhat.com>

	* omp-builtins.def (BUILT_IN_GOMP_WARNING, BUILT_IN_GOMP_ERROR): New
	builtins.

2021-08-20  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/89961
	* gcov.c (make_gcov_file_name): Rewrite using std::string.
	(mangle_name): Simplify, do not used the second argument.
	(strip_extention): New function.
	(get_md5sum): Likewise.
	(get_gcov_intermediate_filename): Handle properly -p and -x
	options.
	(output_gcov_file): Use string type.
	(generate_results): Likewise.
	(md5sum_to_hex): Remove.

2021-08-20  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/altivec.md (UNSPEC_XXEVAL): Move to vsx.md.
	(UNSPEC_XXSPLTIW): Move to vsx.md.
	(UNSPEC_XXSPLTID): Move to vsx.md.
	(UNSPEC_XXSPLTI32DX): Move to vsx.md.
	(UNSPEC_XXBLEND): Move to vsx.md.
	(UNSPEC_XXPERMX): Move to vsx.md.
	(VM3): Move to vsx.md.
	(VM3_char): Move to vsx.md.
	(xxspltiw_v4si): Move to vsx.md.
	(xxspltiw_v4sf): Move to vsx.md.
	(xxspltiw_v4sf_inst): Move to vsx.md.
	(xxspltidp_v2df): Move to vsx.md.
	(xxspltidp_v2df_inst): Move to vsx.md.
	(xxsplti32dx_v4si_inst): Move to vsx.md.
	(xxsplti32dx_v4sf): Move to vsx.md.
	(xxsplti32dx_v4sf_inst): Move to vsx.md.
	(xxblend_<mode>): Move to vsx.md.
	(xxpermx): Move to vsx.md.
	(xxpermx_inst): Move to vsx.md.
	* config/rs6000/vsx.md (UNSPEC_XXEVAL): Move from altivec.md.
	(UNSPEC_XXSPLTIW): Move from altivec.md.
	(UNSPEC_XXSPLTID): Move from altivec.md.
	(UNSPEC_XXSPLTI32DX): Move from altivec.md.
	(UNSPEC_XXBLEND): Move from altivec.md.
	(UNSPEC_XXPERMX): Move from altivec.md.
	(VM3): Move from altivec.md.
	(VM3_char): Move from altivec.md.
	(xxspltiw_v4si): Move from altivec.md.
	(xxspltiw_v4sf): Move from altivec.md.
	(xxspltiw_v4sf_inst): Move from altivec.md.
	(xxspltidp_v2df): Move from altivec.md.
	(xxspltidp_v2df_inst): Move from altivec.md.
	(xxsplti32dx_v4si_inst): Move from altivec.md.
	(xxsplti32dx_v4sf): Move from altivec.md.
	(xxsplti32dx_v4sf_inst): Move from altivec.md.
	(xxblend_<mode>): Move from altivec.md.
	(xxpermx): Move from altivec.md.
	(xxpermx_inst): Move from altivec.md.

2021-08-19  Roger Sayle  <roger@nextmovesoftware.com>

	* tree-vect-generic.c (expand_vector_operations_1): Use either
	gimplify_build1 or gimplify_build2 instead of gimple_build_assign
	when constructing scalar splat expressions.

2021-08-19  Peter Bergner  <bergner@linux.ibm.com>

	PR target/101849
	* config/rs6000/rs6000-call.c (rs6000_gimple_fold_mma_builtin): Cast
	pointer to __vector_pair *.

2021-08-19  Martin Sebor  <msebor@redhat.com>

	* gimple-range.cc: Add comments.
	* gimple-range.h: Same.

2021-08-19  Martin Sebor  <msebor@redhat.com>

	PR middle-end/101984
	* gimple-ssa-warn-access.cc (pass_waccess::execute): Also call
	disable_ranger.

2021-08-19  Jeff Law  <jlaw@localhost.localdomain>

	* config.gcc (h8300-*-elf*): Do not include dbxelf.h.
	(h8300-*-linux*, v850-*-rtems*, v850*-elf*): Likewise.
	* config/v850/v850.h (DEFAULT_GDB_EXTENSIONS): Remove.

2021-08-19  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/101950
	* optabs.c (expand_clrsb_using_clz): New function.
	(expand_unop): Use it as another clrsb expansion fallback.

2021-08-19  liuhongt  <hongtao.liu@intel.com>

	Revert:
	2021-07-28  liuhongt  <hongtao.liu@intel.com>

	PR target/99881
	* config/i386/i386.h (processor_costs): Add new member
	integer_to_sse.
	* config/i386/x86-tune-costs.h (ix86_size_cost, i386_cost,
	i486_cost, pentium_cost, lakemont_cost, pentiumpro_cost,
	geode_cost, k6_cost, athlon_cost, k8_cost, amdfam10_cost,
	bdver_cost, znver1_cost, znver2_cost, znver3_cost,
	btver1_cost, btver2_cost, btver3_cost, pentium4_cost,
	nocona_cost, atom_cost, atom_cost, slm_cost, intel_cost,
	generic_cost, core_cost): Initialize integer_to_sse same value
	as sse_op.
	(skylake_cost): Initialize integer_to_sse twice as much as sse_op.
	* config/i386/i386.c (ix86_builtin_vectorization_cost):
	Use integer_to_sse instead of sse_op to calculate the cost of
	vec_construct.

2021-08-18  Iain Sandoe  <iain@sandoe.co.uk>

	* config.gcc: Include rpath.opt for Darwin.
	* config/darwin.h (DRIVER_SELF_SPECS): Handle -rpath.

2021-08-18  Thomas Schwinge  <thomas@codesourcery.com>

	PR bootstrap/101959
	* hash-map-tests.c (test_map_of_type_with_ctor_and_dtor_expand):
	Use an 'int_hash'.

2021-08-18  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vld3_lane_f64): Use float RTL
	pattern and type cast.
	(vld4_lane_f32): Use float RTL pattern.
	(vld4q_lane_f64): Use float type cast.

2021-08-18  Jan Hubicka  <hubicka@ucw.cz>

	* tree-ssa-uninit.c (maybe_warn_pass_by_reference): Check also
	EAF_NOREAD.

2021-08-18  Thomas Schwinge  <thomas@codesourcery.com>

	* hash-map-tests.c (test_map_of_type_with_ctor_and_dtor): Extend.
	(test_map_of_type_with_ctor_and_dtor_expand): Add function.
	(hash_map_tests_c_tests): Call it.

2021-08-18  Thomas Schwinge  <thomas@codesourcery.com>

	* ggc.h (enum ggc_collect): New.
	(ggc_collect): Use it.
	* ggc-page.c: Adjust.
	* ggc-common.c: Likewise.
	* ggc-tests.c: Likewise.
	* read-rtl-function.c: Likewise.
	* selftest-run-tests.c: Likewise.
	* doc/gty.texi (Invoking the garbage collector): Likewise.

2021-08-18  liuhongt  <hongtao.liu@intel.com>

	PR target/97147
	* config/i386/i386.h (TARGET_V2DF_REDUCTION_PREFER_HADDPD):
	New macro.
	* config/i386/sse.md (*sse3_haddv2df3_low): Add
	TARGET_V2DF_REDUCTION_PREFER_HADDPD.
	(*sse3_hsubv2df3_low): Ditto.
	* config/i386/x86-tune.def
	(X86_TUNE_V2DF_REDUCTION_PREFER_HADDPD): New tune.

2021-08-17  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-gori.cc (gori_compute::gori_compute): Enable tracing.
	(gori_compute::compute_operand_range): Add tracing.
	(gori_compute::logical_combine): Ditto.
	(gori_compute::compute_logical_operands): Ditto.
	(gori_compute::compute_operand1_range): Ditto.
	(gori_compute::compute_operand2_range): Ditto.
	(gori_compute::outgoing_edge_range_p): Ditto.
	* gimple-range-gori.h (class gori_compute): Add range_tracer.

2021-08-17  Andrew MacLeod  <amacleod@redhat.com>

	* flag-types.h (enum evrp_mode): Adjust evrp-mode values.
	* gimple-range-cache.cc (DEBUG_RANGE_CACHE): Relocate from.
	* gimple-range-trace.h (DEBUG_RANGE_CACHE): Here.
	* params.opt (--param=evrp-mode): Adjust options.

2021-08-17  Andrew MacLeod  <amacleod@redhat.com>

	* Makefile.in (OBJS): Add gimple-range-trace.o.
	* gimple-range-cache.h (enable_new_values): Remove unused prototype.
	* gimple-range-fold.cc: Adjust headers.
	* gimple-range-trace.cc: New.
	* gimple-range-trace.h: New.
	* gimple-range.cc (gimple_ranger::gimple_ranger): Enable tracer.
	(gimple_ranger::range_of_expr): Add tracing.
	(gimple_ranger::range_on_entry): Ditto.
	(gimple_ranger::range_on_exit): Ditto.
	(gimple_ranger::range_on_edge): Ditto.
	(gimple_ranger::fold_range_internal): Ditto.
	(gimple_ranger::dump_bb): Do not calculate edge range twice.
	(trace_ranger::*): Remove.
	(enable_ranger): Never create a trace_ranger.
	(debug_seed_ranger): Move to gimple-range-trace.cc.
	(dump_ranger): Ditto.
	(debug_ranger): Ditto.
	* gimple-range.h: Include gimple-range-trace.h.
	(range_on_entry, range_on_exit): No longer virtual.
	(class trace_ranger): Remove.
	(DEBUG_RANGE_CACHE): Move to gimple-range-trace.h.

2021-08-17  Martin Sebor  <msebor@redhat.com>

	PR middle-end/101854
	* builtins.c (expand_builtin_alloca): Move warning code to check_alloca
	in gimple-ssa-warn-access.cc.
	* calls.c (alloc_max_size): Move code to check_alloca.
	(get_size_range): Move to pointer-query.cc.
	(maybe_warn_alloc_args_overflow): Move to gimple-ssa-warn-access.cc.
	(get_attr_nonstring_decl): Move to tree.c.
	(fntype_argno_type): Move to gimple-ssa-warn-access.cc.
	(append_attrname): Same.
	(maybe_warn_rdwr_sizes): Same.
	(initialize_argument_information): Move code to
	gimple-ssa-warn-access.cc.
	* calls.h (maybe_warn_alloc_args_overflow): Move to
	gimple-ssa-warn-access.h.
	(get_attr_nonstring_decl): Move to tree.h.
	(maybe_warn_nonstring_arg):  Move to gimple-ssa-warn-access.h.
	(enum size_range_flags): Move to pointer-query.h.
	(get_size_range): Same.
	* gimple-ssa-warn-access.cc (has_location): Remove unused overload
	to avoid Clang -Wunused-function.
	(get_size_range): Declare static.
	(maybe_emit_free_warning): Rename...
	(maybe_check_dealloc_call): ...to this for consistency.
	(class pass_waccess): Add members.
	(pass_waccess::~pass_waccess): Defined.
	(alloc_max_size): Move here from calls.c.
	(maybe_warn_alloc_args_overflow): Same.
	(check_alloca): New function.
	(check_alloc_size_call): New function.
	(check_strncat): Handle another warning flag.
	(pass_waccess::check_builtin): Handle alloca.
	(fntype_argno_type): Move here from calls.c.
	(append_attrname): Same.
	(maybe_warn_rdwr_sizes): Same.
	(pass_waccess::check_call): Define.
	(check_nonstring_args): New function.
	(pass_waccess::check): Call new member functions.
	(pass_waccess::execute): Enable ranger.
	* gimple-ssa-warn-access.h (get_size_range): Move here from calls.h.
	(maybe_warn_nonstring_arg): Same.
	* gimple-ssa-warn-restrict.c: Remove #include.
	* pointer-query.cc (get_size_range): Move here from calls.c.
	* pointer-query.h (enum size_range_flags): Same.
	(get_size_range): Same.
	* tree.c (get_attr_nonstring_decl): Move here from calls.c.
	* tree.h (get_attr_nonstring_decl): Move here from calls.h.

2021-08-17  Thomas Schwinge  <thomas@codesourcery.com>

	* ggc.h (ggc_collect): Add 'force_collect' parameter.
	* ggc-page.c (ggc_collect): Use that one instead of global
	'ggc_force_collect'.  Adjust all users.
	* doc/gty.texi (Invoking the garbage collector): Update.
	* ggc-internal.h (ggc_force_collect): Remove.
	* ggc-common.c (ggc_force_collect): Likewise.
	* selftest.h (forcibly_ggc_collect): Remove.
	* ggc-tests.c (selftest::forcibly_ggc_collect): Likewise.
	* read-rtl-function.c (test_loading_labels): Adjust.
	* selftest-run-tests.c (run_tests): Likewise.

2021-08-17  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.c (darwin_file_end): Reset and reclaim the
	section names table at the end of compile.

2021-08-17  Iain Sandoe  <iain@sandoe.co.uk>

	PR target/100340
	* config.in: Regenerate.
	* config/i386/darwin.h (EXTRA_ASM_OPTS): New
	(ASM_SPEC): Pass options to disable branch shortening where
	needed.
	* configure: Regenerate.
	* configure.ac: Detect versions of 'as' that support the
	optimisation which has the bug.

2021-08-17  Richard Biener  <rguenther@suse.de>

	* optabs-query.c (supports_vec_gather_load_p): Also check
	for masked optabs.
	(supports_vec_scatter_store_p): Likewise.
	* tree-vect-data-refs.c (vect_gather_scatter_fn_p): Fall
	back to masked variants if non-masked are not supported.
	* tree-vect-patterns.c (vect_recog_gather_scatter_pattern):
	When we need to use masked gather/scatter but do not have
	a mask set up a constant true one.
	* tree-vect-stmts.c (vect_check_scalar_mask): Also allow
	non-SSA_NAME masks.

2021-08-17  Roger Sayle  <roger@nextmovesoftware.com>

	* tree-ssa-ccp.c (bit_value_binop) [MINUS_EXPR]: Use same
	algorithm as PLUS_EXPR to improve subtraction bit bounds.
	[POINTER_DIFF_EXPR]: Treat as synonymous with MINUS_EXPR.

2021-08-17  Roger Sayle  <roger@nextmovesoftware.com>

	* tree-ssa-ccp.c (bit_value_mult_const): New helper function to
	calculate the mask-value pair result of a multiplication by an
	unsigned constant.
	(bit_value_binop) [MULT_EXPR]:  Call it from here for
	multiplications by (sparse) non-negative constants.

2021-08-17  Christophe Lyon  <christophe.lyon@foss.st.com>

	PR target/100896
	* config.gcc (gcc_cv_initfini_array): Leave undefined for
	uclinuxfdpiceabi targets.

2021-08-17  Alexandre Oliva  <oliva@adacore.com>

	* tree-inline.c (maybe_move_debug_stmts_to_successors): Don't
	reverse debug stmts.

2021-08-17  Alexandre Oliva  <oliva@adacore.com>

	* tree-cfg.c (dump_function_to_file): Use fun, not cfun.

2021-08-17  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (__LD4_LANE_FUNC): Delete.
	(__LD4Q_LANE_FUNC): Likewise.
	(vld4_lane_u8): Define without macro.
	(vld4_lane_u16): Likewise.
	(vld4_lane_u32): Likewise.
	(vld4_lane_u64): Likewise.
	(vld4_lane_s8): Likewise.
	(vld4_lane_s16): Likewise.
	(vld4_lane_s32): Likewise.
	(vld4_lane_s64): Likewise.
	(vld4_lane_f16): Likewise.
	(vld4_lane_f32): Likewise.
	(vld4_lane_f64): Likewise.
	(vld4_lane_p8): Likewise.
	(vld4_lane_p16): Likewise.
	(vld4_lane_p64): Likewise.
	(vld4q_lane_u8): Likewise.
	(vld4q_lane_u16): Likewise.
	(vld4q_lane_u32): Likewise.
	(vld4q_lane_u64): Likewise.
	(vld4q_lane_s8): Likewise.
	(vld4q_lane_s16): Likewise.
	(vld4q_lane_s32): Likewise.
	(vld4q_lane_s64): Likewise.
	(vld4q_lane_f16): Likewise.
	(vld4q_lane_f32): Likewise.
	(vld4q_lane_f64): Likewise.
	(vld4q_lane_p8): Likewise.
	(vld4q_lane_p16): Likewise.
	(vld4q_lane_p64): Likewise.
	(vld4_lane_bf16): Likewise.
	(vld4q_lane_bf16): Likewise.

2021-08-17  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (__LD3_LANE_FUNC): Delete.
	(__LD3Q_LANE_FUNC): Delete.
	(vld3_lane_u8): Define without macro.
	(vld3_lane_u16): Likewise.
	(vld3_lane_u32): Likewise.
	(vld3_lane_u64): Likewise.
	(vld3_lane_s8): Likewise.
	(vld3_lane_s16): Likewise.
	(vld3_lane_s32): Likewise.
	(vld3_lane_s64): Likewise.
	(vld3_lane_f16): Likewise.
	(vld3_lane_f32): Likewise.
	(vld3_lane_f64): Likewise.
	(vld3_lane_p8): Likewise.
	(vld3_lane_p16): Likewise.
	(vld3_lane_p64): Likewise.
	(vld3q_lane_u8): Likewise.
	(vld3q_lane_u16): Likewise.
	(vld3q_lane_u32): Likewise.
	(vld3q_lane_u64): Likewise.
	(vld3q_lane_s8): Likewise.
	(vld3q_lane_s16): Likewise.
	(vld3q_lane_s32): Likewise.
	(vld3q_lane_s64): Likewise.
	(vld3q_lane_f16): Likewise.
	(vld3q_lane_f32): Likewise.
	(vld3q_lane_f64): Likewise.
	(vld3q_lane_p8): Likewise.
	(vld3q_lane_p16): Likewise.
	(vld3q_lane_p64): Likewise.
	(vld3_lane_bf16): Likewise.
	(vld3q_lane_bf16): Likewise.

2021-08-17  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (__LD2_LANE_FUNC): Delete.
	(__LD2Q_LANE_FUNC): Likewise.
	(vld2_lane_u8): Define without macro.
	(vld2_lane_u16): Likewise.
	(vld2_lane_u32): Likewise.
	(vld2_lane_u64): Likewise.
	(vld2_lane_s8): Likewise.
	(vld2_lane_s16): Likewise.
	(vld2_lane_s32): Likewise.
	(vld2_lane_s64): Likewise.
	(vld2_lane_f16): Likewise.
	(vld2_lane_f32): Likewise.
	(vld2_lane_f64): Likewise.
	(vld2_lane_p8): Likewise.
	(vld2_lane_p16): Likewise.
	(vld2_lane_p64): Likewise.
	(vld2q_lane_u8): Likewise.
	(vld2q_lane_u16): Likewise.
	(vld2q_lane_u32): Likewise.
	(vld2q_lane_u64): Likewise.
	(vld2q_lane_s8): Likewise.
	(vld2q_lane_s16): Likewise.
	(vld2q_lane_s32): Likewise.
	(vld2q_lane_s64): Likewise.
	(vld2q_lane_f16): Likewise.
	(vld2q_lane_f32): Likewise.
	(vld2q_lane_f64): Likewise.
	(vld2q_lane_p8): Likewise.
	(vld2q_lane_p16): Likewise.
	(vld2q_lane_p64): Likewise.
	(vld2_lane_bf16): Likewise.
	(vld2q_lane_bf16): Likewise.

2021-08-17  Maxim Kuvyrkov  <maxim.kuvyrkov@linaro.org>

	* haifa-sched.c (advance_one_cycle): Output more context-synchronization
	lines for diff.

2021-08-17  Maxim Kuvyrkov  <maxim.kuvyrkov@linaro.org>

	* haifa-sched.c (enum rfs_decision, rfs_str): Add RFS_AUTOPREF.
	(rank_for_schedule): Use it.

2021-08-17  Maxim Kuvyrkov  <maxim.kuvyrkov@linaro.org>

	PR rtl-optimization/91598
	* haifa-sched.c (autopref_rank_for_schedule): Prioritize "irrelevant"
	insns after memory reads and before memory writes.

2021-08-17  Alistair_Lee  <alistair.lee@arm.com>

	* rtl.h (CONST_VECTOR_P): New macro.
	* config/aarch64/aarch64.c (aarch64_get_sve_pred_bits): Use RTL
	code testing macros.
	(aarch64_ptrue_all_mode): Likewise.
	(aarch64_expand_mov_immediate): Likewise.
	(aarch64_const_vec_all_in_range_p): Likewise.
	(aarch64_rtx_costs): Likewise.
	(aarch64_legitimate_constant_p): Likewise.
	(aarch64_simd_valid_immediate): Likewise.
	(aarch64_simd_make_constant): Likewise.
	(aarch64_convert_mult_to_shift): Likewise.
	(aarch64_expand_sve_vec_perm): Likewise.
	(aarch64_vec_fpconst_pow_of_2): Likewise.

2021-08-17  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/101938
	* range-op.cc (operator_abs::op1_range): Special case
	-TYPE_MIN_VALUE for flag_wrapv.

2021-08-17  Kewen Lin  <linkw@linux.ibm.com>

	* tree-vect-slp.c (vectorizable_bb_reduc_epilogue): Add the cost for
	value extraction.

2021-08-17  Jakub Jelinek  <jakub@redhat.com>

	* tree.def (OMP_SCOPE): New tree code.
	* tree.h (OMP_SCOPE_BODY, OMP_SCOPE_CLAUSES): Define.
	* tree-nested.c (convert_nonlocal_reference_stmt,
	convert_local_reference_stmt, convert_gimple_call): Handle
	GIMPLE_OMP_SCOPE.
	* tree-pretty-print.c (dump_generic_node): Handle OMP_SCOPE.
	* gimple.def (GIMPLE_OMP_SCOPE): New gimple code.
	* gimple.c (gimple_build_omp_scope): New function.
	(gimple_copy): Handle GIMPLE_OMP_SCOPE.
	* gimple.h (gimple_build_omp_scope): Declare.
	(gimple_has_substatements): Handle GIMPLE_OMP_SCOPE.
	(gimple_omp_scope_clauses, gimple_omp_scope_clauses_ptr,
	gimple_omp_scope_set_clauses): New inline functions.
	(CASE_GIMPLE_OMP): Add GIMPLE_OMP_SCOPE.
	* gimple-pretty-print.c (dump_gimple_omp_scope): New function.
	(pp_gimple_stmt_1): Handle GIMPLE_OMP_SCOPE.
	* gimple-walk.c (walk_gimple_stmt): Likewise.
	* gimple-low.c (lower_stmt): Likewise.
	* gimplify.c (is_gimple_stmt): Handle OMP_MASTER.
	(gimplify_scan_omp_clauses): For task reductions, handle OMP_SCOPE
	like ORT_WORKSHARE constructs.  Adjust diagnostics for %<scope%>
	allowing task reductions.  Reject inscan reductions on scope.
	(omp_find_stores_stmt): Handle GIMPLE_OMP_SCOPE.
	(gimplify_omp_workshare, gimplify_expr): Handle OMP_SCOPE.
	* tree-inline.c (remap_gimple_stmt): Handle GIMPLE_OMP_SCOPE.
	(estimate_num_insns): Likewise.
	* omp-low.c (build_outer_var_ref): Look through GIMPLE_OMP_SCOPE
	contexts if var isn't privatized there.
	(check_omp_nesting_restrictions): Handle GIMPLE_OMP_SCOPE.
	(scan_omp_1_stmt): Likewise.
	(maybe_add_implicit_barrier_cancel): Look through outer
	scope constructs.
	(lower_omp_scope): New function.
	(lower_omp_task_reductions): Handle OMP_SCOPE.
	(lower_omp_1): Handle GIMPLE_OMP_SCOPE.
	(diagnose_sb_1, diagnose_sb_2): Likewise.
	* omp-expand.c (expand_omp_single): Support also GIMPLE_OMP_SCOPE.
	(expand_omp): Handle GIMPLE_OMP_SCOPE.
	(omp_make_gimple_edges): Likewise.
	* omp-builtins.def (BUILT_IN_GOMP_SCOPE_START): New built-in.

2021-08-17  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101925
	* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Set
	reverse on COMPONENT_REF and ARRAY_REF according to
	what reverse_storage_order_for_component_p does.
	(vn_reference_eq): Compare reversed on reference ops.
	(reverse_storage_order_for_component_p): New overload.
	(vn_reference_lookup_3): Check reverse_storage_order_for_component_p
	on the reference looked up.

2021-08-17  Jeff Law  <jlaw@localhost.localdomain>

	* config/h8300/h8300.c (shift_alg_si): Avoid loops for most SImode
	shifts on the H8/S.
	(h8300_option_override): Use loops on H8/S more often when optimizing
	for size.
	(get_shift_alg): Handle new "special" cases on H8/S.  Simplify
	accordingly.  Handle various arithmetic right shifts with special
	sequences that we couldn't handle before.

2021-08-16  Jeff Law  <jlaw@localhost.localdomain>

	* config.gcc (rl78-*-elf*): Do not include dbxelf.h.

2021-08-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* config/sparc/rtemself.h (SPARC_GCOV_TYPE_SIZE): Define.
	* config/sparc/sparc.c (sparc_gcov_type_size): New.
	(TARGET_GCOV_TYPE_SIZE): Redefine if SPARC_GCOV_TYPE_SIZE is defined.
	* coverage.c (get_gcov_type): Use targetm.gcov_type_size().
	* doc/tm.texi (TARGET_GCOV_TYPE_SIZE): Add hook under "Misc".
	* doc/tm.texi.in: Regenerate.
	* target.def (gcov_type_size): New target hook.
	* targhooks.c (default_gcov_type_size): New.
	* targhooks.h (default_gcov_type_size): Declare.
	* tree-profile.c (gimple_gen_edge_profiler): Use precision of
	gcov_type_node.
	(gimple_gen_time_profiler): Likewise.

2021-08-16  Eric Botcazou  <ebotcazou@gcc.gnu.org>

	* dwarf2out.c (add_scalar_info): Deal with DW_AT_data_bit_offset.

2021-08-16  Tobias Burnus  <tobias@codesourcery.com>

	PR middle-end/101931
	* omp-low.c (omp_runtime_api_call): Update for routines
	added in the meanwhile.

2021-08-16  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/100393
	* tree-switch-conversion.c (group_cluster::dump): Use
	  get_comparison_count.
	(jump_table_cluster::find_jump_tables): Pre-compute number of
	comparisons and then decrement it. Cache also max_ratio.
	(jump_table_cluster::can_be_handled): Change signature.
	* tree-switch-conversion.h (get_comparison_count): New.

2021-08-16  Eric Botcazou  <ebotcazou@gcc.gnu.org>

	* dwarf2out.c (add_data_member_location_attribute): Use GNAT
	encodings only when -fgnat-encodings=all is specified.
	(add_bound_info): Likewise.
	(add_byte_size_attribute): Likewise.
	(gen_member_die): Likewise.

2021-08-16  Thomas Schwinge  <thomas@codesourcery.com>

	* omp-oacc-neuter-broadcast.cc
	(execute_omp_oacc_neuter_broadcast): Plug 'par' memory leak.

2021-08-16  Thomas Schwinge  <thomas@codesourcery.com>

	* omp-oacc-neuter-broadcast.cc
	(execute_omp_oacc_neuter_broadcast): Clarify memory management for
	'prop_set'.

2021-08-16  Thomas Schwinge  <thomas@codesourcery.com>

	* omp-oacc-neuter-broadcast.cc (field_map): Move variable into...
	(execute_omp_oacc_neuter_broadcast): ... here.
	(install_var_field, build_receiver_ref, build_sender_ref): Take
	'field_map_t *' parameter.  Adjust all users.
	(worker_single_copy, neuter_worker_single): Take a
	'record_field_map_t *' parameter.  Adjust all users.

2021-08-16  liuhongt  <hongtao.liu@intel.com>

	PR target/101930
	* config/i386/i386.md (ldexp<mode>3): Force operands[1] to
	reg.

2021-08-16  Martin Liska  <mliska@suse.cz>

	PR ipa/101726
	* multiple_target.c (create_dispatcher_calls): Make default
	  function local only if it is a definition.

2021-08-16  Martin Liska  <mliska@suse.cz>

	PR ipa/100600
	* ipa-icf-gimple.c (func_checker::compare_ssa_name): Do not
	  consider equal SSA_NAMEs when one is a param.

2021-08-16  liuhongt  <hongtao.liu@intel.com>

	PR target/101846
	* config/i386/i386-expand.c (ix86_expand_vec_perm_vpermt2):
	Support vpermi2b for V32QI/V16QImode.
	(ix86_extract_perm_from_pool_constant): New function.
	(ix86_expand_vec_one_operand_perm_avx512): Support
	vpermw/vpermb under TARGET_AVX512BW/TARGET_AVX512VBMI.
	(expand_vec_perm_1): Adjust comments for upper.
	* config/i386/i386-protos.h (ix86_extract_perm_from_pool_constant):
	New declare.
	* config/i386/predicates.md (permvar_truncate_operand): New predicate.
	(pshufb_truncv4siv4hi_operand): Ditto.
	(pshufb_truncv8hiv8qi_operand): Ditto.
	* config/i386/sse.md (*avx512bw_permvar_truncv16siv16hi_1):
	New pre_reload define_insn_and_split.
	(*avx512f_permvar_truncv8siv8hi_1): Ditto.
	(*avx512f_vpermvar_truncv8div8si_1): Ditto.
	(*avx512f_permvar_truncv32hiv32qi_1): Ditto.
	(*avx512f_permvar_truncv16hiv16qi_1): Ditto.
	(*avx512f_permvar_truncv4div4si_1): Ditto.
	(*avx512f_pshufb_truncv8hiv8qi_1): Ditto.
	(*avx512f_pshufb_truncv4siv4hi_1): Ditto.
	(*avx512f_pshufd_truncv2div2si_1): Ditto.

2021-08-16  Kito Cheng  <kito.cheng@sifive.com>

	* config/riscv/multilib-generator: Support code model option for
	multi-lib.
	* doc/install.texi: Add document of new option for
	--with-multilib-generator.

2021-08-15  Clément Chigot  <clement.chigot@atos.net>

	* config/rs6000/rs6000.c (xcoff_tls_exec_model_detected): New.
	(rs6000_legitimize_tls_address_aix): Use it.
	(rs6000_xcoff_file_end): Add ".ref __tls_get_addr" when
	xcoff_tls_exec_model_detected is true.

2021-08-15  Jeff Law  <jlaw@localhost.localdomain>

	* config/h8300/h8300.c (shift_alg_si): Retune H8/300H shifts
	to allow a bit more code growth, saving many dozens of cycles.
	(h8300_option_override): Adjus shift_alg_si if optimizing for
	code size.
	(get_shift_alg): Use special + inline shifts for residuals
	in more cases.

2021-08-14  Stafford Horne  <shorne@gmail.com>

	PR target/99783
	* config/or1k/or1k-opts.h: New file.
	* config/or1k/or1k.c (or1k_legitimize_address_1, print_reloc):
	Support generating gotha relocations if -mcmodel=large is
	specified.
	* config/or1k/or1k.h (TARGET_CMODEL_SMALL, TARGET_CMODEL_LARGE):
	New macros.
	* config/or1k/or1k.opt (mcmodel=): New option.
	* doc/invoke.texi (OpenRISC Options): Document mcmodel.

2021-08-14  Martin Sebor  <msebor@redhat.com>

	PR middle-end/101791
	* gimple-ssa-warn-access.cc (new_delete_mismatch_p): Use new argument
	to valid_new_delete_pair_p.
	* tree.c (valid_new_delete_pair_p): Add argument.
	* tree.h (valid_new_delete_pair_p): Same.

2021-08-14  Jakub Jelinek  <jakub@redhat.com>

	PR target/101896
	* config/i386/i386-expand.c (expand_vec_perm_broadcast_1)
	<case E_V64QImode>: For this mode assert
	!TARGET_AVX512BW || d->perm[0] rather than !TARGET_AVX2 || d->perm[0].

2021-08-13  Michael Meissner  <meissner@linux.ibm.com>

	PR target/99921
	* config/rs6000/altivec.md (xxeval): Use register_predicate
	instead of altivec_register_predicate.

2021-08-13  Martin Sebor  <msebor@redhat.com>

	PR middle-end/101734
	* tree-ssa-uninit.c (maybe_warn_read_write_only): New function.
	(maybe_warn_operand): Call it.

2021-08-13  Martin Liska  <mliska@suse.cz>

	PR ipa/101354
	* attribs.c (decl_attributes): Make naked functions "noipa"
	  functions.

2021-08-13  Martin Liska  <mliska@suse.cz>

	PR ipa/101261
	* symtab.c (symtab_node::noninterposable_alias): Do not create
	  local aliases for target_clone functions as the clonning pass
	  rejects aliases.

2021-08-13  Martin Liska  <mliska@suse.cz>

	* opts.c (LIVE_PATCHING_OPTION): Define.
	(control_options_for_live_patching): Use it in error messages.

2021-08-13  Jan Hubicka  <hubicka@ucw.cz>

	* ipa-modref.c (dump_eaf_flags): Dump EAF_NOREAD.
	(implicit_const_eaf_flags, implicit_pure_eaf_flags,
	 ignore_stores_eaf_flags): New constants.
	(remove_useless_eaf_flags): New function.
	(eaf_flags_useful_p): Use it.
	(deref_flags): Add EAF_NOT_RETURNED if flag is unused;
	handle EAF_NOREAD.
	(modref_lattice::init): Add EAF_NOREAD.
	(modref_lattice::add_escape_point): Do not reacord escape point if
	result is unused.
	(modref_lattice::merge): EAF_NOESCAPE implies EAF_NODIRECTESCAPE;
	use remove_useless_eaf_flags.
	(modref_lattice::merge_deref): Use ignore_stores_eaf_flags.
	(modref_lattice::merge_direct_load): Add EAF_NOREAD
	(analyze_ssa_name_flags): Fix handling EAF_NOT_RETURNED
	(analyze_parms): Use remove_useless_eaf_flags.
	(ipa_merge_modref_summary_after_inlining): Use ignore_stores_eaf_flags.
	(modref_merge_call_site_flags): Add caller and ecf_flags parameter;
	use remove_useless_eaf_flags.
	(modref_propagate_flags_in_scc): Update.
	* ipa-modref.h: Turn eaf_flags_t back to char.
	* tree-core.h (EAF_NOT_RETURNED): Fix.
	(EAF_NOREAD): New constant
	* tree-ssa-alias.c: (ref_maybe_used_by_call_p_1): Check for
	EAF_NOREAD.
	* tree-ssa-structalias.c (handle_rhs_call): Handle new flags.
	(handle_pure_call): Likewise.

2021-08-12  Jakub Jelinek  <jakub@redhat.com>

	* tree.def (OMP_MASKED): New tree code.
	* tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_FILTER.
	* tree.h (OMP_MASKED_BODY, OMP_MASKED_CLAUSES, OMP_MASKED_COMBINED,
	OMP_CLAUSE_FILTER_EXPR): Define.
	* tree.c (omp_clause_num_ops): Add OMP_CLAUSE_FILTER entry.
	(omp_clause_code_name): Likewise.
	(walk_tree_1): Handle OMP_CLAUSE_FILTER.
	* tree-nested.c (convert_nonlocal_omp_clauses,
	convert_local_omp_clauses): Handle OMP_CLAUSE_FILTER.
	(convert_nonlocal_reference_stmt, convert_local_reference_stmt,
	convert_gimple_call): Handle GIMPLE_OMP_MASTER.
	* tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE_FILTER.
	(dump_generic_node): Handle OMP_MASTER.
	* gimple.def (GIMPLE_OMP_MASKED): New gimple code.
	* gimple.c (gimple_build_omp_masked): New function.
	(gimple_copy): Handle GIMPLE_OMP_MASKED.
	* gimple.h (gimple_build_omp_masked): Declare.
	(gimple_has_substatements): Handle GIMPLE_OMP_MASKED.
	(gimple_omp_masked_clauses, gimple_omp_masked_clauses_ptr,
	gimple_omp_masked_set_clauses): New inline functions.
	(CASE_GIMPLE_OMP): Add GIMPLE_OMP_MASKED.
	* gimple-pretty-print.c (dump_gimple_omp_masked): New function.
	(pp_gimple_stmt_1): Handle GIMPLE_OMP_MASKED.
	* gimple-walk.c (walk_gimple_stmt): Likewise.
	* gimple-low.c (lower_stmt): Likewise.
	* gimplify.c (is_gimple_stmt): Handle OMP_MASTER.
	(gimplify_scan_omp_clauses): Handle OMP_CLAUSE_FILTER.  For clauses
	that take one expression rather than decl or constant, force
	gimplification of that into a SSA_NAME or temporary unless min
	invariant.
	(gimplify_adjust_omp_clauses): Handle OMP_CLAUSE_FILTER.
	(gimplify_expr): Handle OMP_MASKED.
	* tree-inline.c (remap_gimple_stmt): Handle GIMPLE_OMP_MASKED.
	(estimate_num_insns): Likewise.
	* omp-low.c (scan_sharing_clauses): Handle OMP_CLAUSE_FILTER.
	(check_omp_nesting_restrictions): Handle GIMPLE_OMP_MASKED.  Adjust
	diagnostics for existence of masked construct.
	(scan_omp_1_stmt, lower_omp_master, lower_omp_1, diagnose_sb_1,
	diagnose_sb_2): Handle GIMPLE_OMP_MASKED.
	* omp-expand.c (expand_omp_synch, expand_omp, omp_make_gimple_edges):
	Likewise.

2021-08-12  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/98309
	* config/i386/i386.md (avx512f_scalef<mode>2): New insn pattern.
	(ldexp<mode>3): Use avx512f_scalef<mode>2.
	(UNSPEC_SCALEF): Move from ...
	* config/i386/sse.md (UNSPEC_SCALEF): ... here.

2021-08-12  Jan Hubicka  <hubicka@ucw.cz>

	* ipa-split.c (consider_split): Fix condition testing void functions.

2021-08-12  Aldy Hernandez  <aldyh@redhat.com>

	* doc/invoke.texi: Remove docs for threader-mode param.
	* flag-types.h (enum threader_mode): Remove.
	* params.opt: Remove threader-mode param.
	* tree-ssa-threadbackward.c (class back_threader): Remove
	path_is_unreachable_p.
	Make find_paths private.
	Add maybe_thread and thread_through_all_blocks.
	Remove reference marker for m_registry.
	Remove reference marker for m_profit.
	(back_threader::back_threader): Adjust for registry and profit not
	being references.
	(dump_path): Move down.
	(debug): Move down.
	(class thread_jumps): Remove.
	(class back_threader_registry): Remove m_all_paths.
	Remove destructor.
	(thread_jumps::thread_through_all_blocks): Move to back_threader
	class.
	(fsm_find_thread_path): Remove
	(back_threader::maybe_thread): New.
	(back_threader::thread_through_all_blocks): Move from
	thread_jumps.
	(back_threader_registry::back_threader_registry): Remove
	m_all_paths.
	(back_threader_registry::~back_threader_registry): Remove.
	(thread_jumps::find_taken_edge): Remove.
	(thread_jumps::check_subpath_and_update_thread_path): Remove.
	(thread_jumps::maybe_register_path): Remove.
	(thread_jumps::handle_phi): Remove.
	(handle_assignment_p): Remove.
	(thread_jumps::handle_assignment): Remove.
	(thread_jumps::fsm_find_control_statement_thread_paths): Remove.
	(thread_jumps::find_jump_threads_backwards): Remove.
	(thread_jumps::find_jump_threads_backwards_with_ranger): Remove.
	(try_thread_blocks): Rename find_jump_threads_backwards to
	maybe_thread.
	(pass_early_thread_jumps::execute): Same.

2021-08-12  Tobias Burnus  <tobias@codesourcery.com>

	* tree-core.h (omp_clause_proc_bind_kind): Add
	OMP_CLAUSE_PROC_BIND_PRIMARY.
	* tree-pretty-print.c (dump_omp_clause): Add TODO comment to
	change 'master' to 'primary' in proc_bind for OpenMP 5.1.

2021-08-12  Claudiu Zissulescu  <claziss@synopsys.com>

	* common/config/arc/arc-common.c (arc_option_init_struct): Remove
	fno-common reference.
	* config/arc/arc.c (arc_override_options): Remove overriding of
	flag_no_common.

2021-08-12  Jakub Jelinek  <jakub@redhat.com>

	PR target/101860
	* config/i386/i386-expand.c (ix86_expand_vec_one_operand_perm_avx512):
	If d->testing_p, return true after performing checks instead of
	actually expanding the insn.
	(expand_vec_perm_broadcast_1): Handle V32HImode - assert
	!TARGET_AVX512BW and return false.

2021-08-12  Eric Botcazou  <ebotcazou@gcc.gnu.org>

	* configure.ac (PE linker --disable-dynamicbase support): New check.
	* configure: Regenerate.
	* config.in: Likewise.
	* config/i386/mingw32.h (LINK_SPEC_DISABLE_DYNAMICBASE): New define.
	(LINK_SPEC): Use it.
	* config/i386/mingw-w64.h (LINK_SPEC_DISABLE_DYNAMICBASE): Likewise.
	(LINK_SPEC): Likewise.

2021-08-12  liuhongt  <hongtao.liu@intel.com>

	PR target/101846
	* config/i386/sse.md (*avx2_zero_extendv16qiv16hi2_2): New
	post_reload define_insn_and_split.
	(*avx512bw_zero_extendv32qiv32hi2_2): Ditto.
	(*sse4_1_zero_extendv8qiv8hi2_4): Ditto.
	(*avx512f_zero_extendv16hiv16si2_2): Ditto.
	(*avx2_zero_extendv8hiv8si2_2): Ditto.
	(*sse4_1_zero_extendv4hiv4si2_4): Ditto.
	(*avx512f_zero_extendv8siv8di2_2): Ditto.
	(*avx2_zero_extendv4siv4di2_2): Ditto.
	(*sse4_1_zero_extendv2siv2di2_4): Ditto.
	(VI248_256, VI248_512, VI148_512, VI148_256, VI148_128): New
	mode iterator.

2021-08-11  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def: Add always, power5, and
	power6 stanzas.

2021-08-11  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def: Add vsx stanza.

2021-08-11  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def: Finish altivec stanza.
	* config/rs6000/rs6000-call.c (rs6000_init_builtins): Move
	initialization of pcvoid_type_node here...
	(altivec_init_builtins): ...from here.
	* config/rs6000/rs6000.h (rs6000_builtin_type_index): Add
	RS6000_BTI_const_ptr_void.
	(pcvoid_type_node): New macro.

2021-08-11  Richard Biener  <rguenther@suse.de>

	PR target/101877
	* tree-ssa-forwprop.c (pass_forwprop::execute): Do not decompose
	hard-register accesses.

2021-08-11  Richard Biener  <rguenther@suse.de>

	* tree-ssa-operands.c (operands_scanner::get_expr_operands):
	Do not look at COMPONENT_REF FIELD_DECLs TREE_THIS_VOLATILE
	to determine has_volatile_ops.

2021-08-11  Eric Botcazou  <ebotcazou@gcc.gnu.org>

	* cfgexpand.c (expand_used_vars): Reuse attribs local variable.

2021-08-11  Jan Hubicka  <hubicka@ucw.cz>
	    Alexandre Oliva  <oliva@adacore.com>

	* ipa-modref.c (modref_lattice::dump): Fix escape_point's min_flags
	dumping.
	(modref_lattice::merge_deref): Fix handling of indirect scape points.
	(update_escape_summary_1): Likewise.
	(update_escape_summary): Likewise.
	(ipa_merge_modref_summary_after_inlining): Likewise.

2021-08-11  Richard Biener  <rguenther@suse.de>

	PR middle-end/101858
	* fold-const.c (fold_binary_loc): Guard simplification
	of  X < (cast) (1 << Y) to integer types.

2021-08-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101861
	* tree-vect-stmts.c (vectorizable_load): Fix error in
	previous change with regard to gather vectorization.

2021-08-11  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>

	PR target/66791
	* config/arm/arm_neon.h (vdup_n_s8): Replace call to builtin
	with constructor.
	(vdup_n_s16): Likewise.
	(vdup_n_s32): Likewise.
	(vdup_n_s64): Likewise.
	(vdup_n_u8): Likewise.
	(vdup_n_u16): Likewise.
	(vdup_n_u32): Likewise.
	(vdup_n_u64): Likewise.
	(vdup_n_p8): Likewise.
	(vdup_n_p16): Likewise.
	(vdup_n_p64): Likewise.
	(vdup_n_f16): Likewise.
	(vdup_n_f32): Likewise.
	(vdupq_n_s8): Likewise.
	(vdupq_n_s16): Likewise.
	(vdupq_n_s32): Likewise.
	(vdupq_n_s64): Likewise.
	(vdupq_n_u8): Likewise.
	(vdupq_n_u16): Likewise.
	(vdupq_n_u32): Likewise.
	(vdupq_n_u64): Likewise.
	(vdupq_n_p8): Likewise.
	(vdupq_n_p16): Likewise.
	(vdupq_n_p64): Likewise.
	(vdupq_n_f16): Likewise.
	(vdupq_n_f32): Likewise.
	(vmov_n_s8): Replace call to builtin with call to corresponding
	vdup_n intrinsic.
	(vmov_n_s16): Likewise.
	(vmov_n_s32): Likewise.
	(vmov_n_s64): Likewise.
	(vmov_n_u8): Likewise.
	(vmov_n_u16): Likewise.
	(vmov_n_u32): Likewise.
	(vmov_n_u64): Likewise.
	(vmov_n_p8): Likewise.
	(vmov_n_p16): Likewise.
	(vmov_n_f16): Likewise.
	(vmov_n_f32): Likewise.
	(vmovq_n_s8): Likewise.
	(vmovq_n_s16): Likewise.
	(vmovq_n_s32): Likewise.
	(vmovq_n_s64): Likewise.
	(vmovq_n_u8): Likewise.
	(vmovq_n_u16): Likewise.
	(vmovq_n_u32): Likewise.
	(vmovq_n_u64): Likewise.
	(vmovq_n_p8): Likewise.
	(vmovq_n_p16): Likewise.
	(vmovq_n_f16): Likewise.
	(vmovq_n_f32): Likewise.
	* config/arm/arm_neon_builtins.def: Remove entries for vdup_n.

2021-08-11  liuhongt  <hongtao.liu@intel.com>

	PR target/98309
	* config/i386/i386.md (ldexp<mode>3): Extend to vscalefs[sd]
	when TARGET_AVX512F and TARGET_SSE_MATH.

2021-08-10  Jakub Jelinek  <jakub@redhat.com>

	PR target/80355
	* config/i386/i386-expand.c (expand_vec_perm_even_odd): Return false
	for V32HImode if !TARGET_AVX512BW.
	(ix86_vectorize_vec_perm_const) <case E_V32HImode, case E_V64QImode>:
	If !TARGET_AVX512BW and TARGET_AVX512F and d.testing_p, don't fail
	early, but actually check the permutation.

2021-08-10  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101809
	* tree-vect-stmts.c (get_load_store_type): Allow emulated
	gathers with offset vector nunits being a constant multiple
	of the data vector nunits.
	(vect_get_gather_scatter_ops): Use the appropriate nunits
	for the offset vector defs.
	(vectorizable_store): Adjust call to
	vect_get_gather_scatter_ops.
	(vectorizable_load): Likewise.  Handle the case of less
	offset vectors than data vectors.

2021-08-10  Jakub Jelinek  <jakub@redhat.com>

	PR target/80355
	* config/i386/sse.md (*avx512f_shuf_<shuffletype>64x2_1<mask_name>_1,
	*avx512f_shuf_<shuffletype>32x4_1<mask_name>_1): New define_insn
	patterns.

2021-08-10  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101801
	PR tree-optimization/101819
	* tree-vectorizer.h (vect_emulated_vector_p): Declare.
	* tree-vect-loop.c (vect_emulated_vector_p): New function.
	(vectorizable_reduction): Re-instantiate a check for emulated
	operations.
	* tree-vect-stmts.c (vectorizable_shift): Likewise.
	(vectorizable_operation): Likewise.  Cost emulated vector
	operations according to the scalar sequence synthesized by
	vector lowering.

2021-08-10  Richard Biener  <rguenther@suse.de>

	PR middle-end/101824
	* tree-nested.c (get_frame_field): Mark the COMPONENT_REF as
	volatile in case the variable was.

2021-08-10  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101804
	* config/i386/constraints.md (BC): Document for integer SSE
	constant all bits set operand.
	(BF): New constraint for const floating-point all bits set
	vectors.
	* config/i386/i386.c (standard_sse_constant_p): Likewise.
	(standard_sse_constant_opcode): Likewise.
	* config/i386/sse.md (sseconstm1): New mode attribute.
	(mov<mode>_internal): Replace BC with <sseconstm1>.

2021-08-10  liuhongt  <hongtao.liu@intel.com>

	* config/i386/sse.md (cond_<insn><mode>): New expander.
	(VI248_AVX512VLBW): New mode iterator.
	* config/i386/predicates.md
	(nonimmediate_or_const_vec_dup_operand): New predicate.

2021-08-09  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/101741
	* gimple-range-fold.cc (fold_using_range::range_of_builtin_call): Check
	type of parameter for toupper/tolower.

2021-08-09  Martin Jambor  <mjambor@suse.cz>

	PR testsuite/101654
	* ipa-prop.c (propagate_controlled_uses): Removed a spurious space.

2021-08-09  Pat Haugen  <pthaugen@linux.ibm.com>

	* config/rs6000/rs6000.c (is_load_insn1): Verify destination is a
	register.
	(is_store_insn1): Verify source is a register.

2021-08-09  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/101812
	* config/i386/mmx.md (<any_logic:code>v2sf3):
	Rename from *mmx_<any_logic:code>v2sf3

2021-08-09  Thomas Schwinge  <thomas@codesourcery.com>

	* config/nvptx/nvptx.c: Cross-reference parts adapted in
	'gcc/omp-oacc-neuter-broadcast.cc'.
	* omp-low.c: Likewise.
	* omp-oacc-neuter-broadcast.cc: Cross-reference parts adapted from
	the above files.

2021-08-09  Julian Brown  <julian@codesourcery.com>
	    Kwok Cheung Yeung  <kcy@codesourcery.com>
	    Thomas Schwinge  <thomas@codesourcery.com>

	* config/gcn/gcn.c (gcn_init_builtins): Override decls for
	BUILT_IN_GOACC_SINGLE_START, BUILT_IN_GOACC_SINGLE_COPY_START,
	BUILT_IN_GOACC_SINGLE_COPY_END and BUILT_IN_GOACC_BARRIER.
	(gcn_goacc_validate_dims): Turn on worker partitioning unconditionally.
	(gcn_fork_join): Update comment.
	* config/gcn/gcn.opt (flag_worker_partitioning): Remove.
	(macc_experimental_workers): Remove unused option.

2021-08-09  Julian Brown  <julian@codesourcery.com>
	    Nathan Sidwell  <nathan@codesourcery.com> (via 'gcc/config/nvptx/nvptx.c' master)
	    Kwok Cheung Yeung  <kcy@codesourcery.com>
	    Thomas Schwinge  <thomas@codesourcery.com>

	* Makefile.in (OBJS): Add omp-oacc-neuter-broadcast.o.
	* doc/tm.texi.in (TARGET_GOACC_CREATE_WORKER_BROADCAST_RECORD):
	Add documentation hook.
	* doc/tm.texi: Regenerate.
	* omp-oacc-neuter-broadcast.cc: New file.
	* omp-builtins.def (BUILT_IN_GOACC_BARRIER)
	(BUILT_IN_GOACC_SINGLE_START, BUILT_IN_GOACC_SINGLE_COPY_START)
	(BUILT_IN_GOACC_SINGLE_COPY_END): New builtins.
	* passes.def (pass_omp_oacc_neuter_broadcast): Add pass.
	* target.def (goacc.create_worker_broadcast_record): Add target
	hook.
	* tree-pass.h (make_pass_omp_oacc_neuter_broadcast): Add
	prototype.
	* config/gcn/gcn-protos.h (gcn_goacc_adjust_propagation_record):
	Rename prototype to...
	(gcn_goacc_create_worker_broadcast_record): ... this.
	* config/gcn/gcn-tree.c (gcn_goacc_adjust_propagation_record): Rename
	function to...
	(gcn_goacc_create_worker_broadcast_record): ... this.
	* config/gcn/gcn.c (TARGET_GOACC_ADJUST_PROPAGATION_RECORD):
	Rename to...
	(TARGET_GOACC_CREATE_WORKER_BROADCAST_RECORD): ... this.

2021-08-09  Tejas Belagod  <tejas.belagod@arm.com>

	PR target/101609
	* config/aarch64/aarch64-simd.md (vlshr<mode>3, vashr<mode>3): Use
	the right iterator.

2021-08-09  Thomas Schwinge  <thomas@codesourcery.com>

	* Makefile.in (GTFILES): Remove '$(srcdir)/omp-offload.c'.

2021-08-09  Thomas Schwinge  <thomas@codesourcery.com>

	* builtins.def (DEF_GOACC_BUILTIN, DEF_GOMP_BUILTIN): Don't
	consider '-foffload-abi'.
	* common.opt (-foffload-abi): Remove 'Var', 'Init'.
	* opts.c (common_handle_option) <-foffload-abi> [ACCEL_COMPILER]:
	Ignore.

2021-08-09  Thomas Schwinge  <thomas@codesourcery.com>

	* optc-gen.awk: Sanity check that 'Init' doesn't appear without
	'Var'.

2021-08-09  Thomas Schwinge  <thomas@codesourcery.com>

	* omp-builtins.def (BUILT_IN_ACC_GET_DEVICE_TYPE): Remove.

2021-08-09  Thomas Schwinge  <thomas@codesourcery.com>

	* doc/gty.texi (Files): Update.

2021-08-09  Thomas Schwinge  <thomas@codesourcery.com>

	* doc/gty.texi (Files): Fix GTY header file example.

2021-08-09  Roger Sayle  <roger@nextmovesoftware.com>

	* tree-ssa-ccp.c (value_mask_to_min_max): Helper function to
	determine the upper and lower bounds from a mask-value pair.
	(bit_value_unop) [ABS_EXPR, ABSU_EXPR]: Add support for
	absolute value and unsigned absolute value expressions.
	(bit_value_binop):  Initialize *VAL's precision.
	[LT_EXPR, LE_EXPR]: Use value_mask_to_min_max to determine
	upper and lower bounds of operands.  Add LE_EXPR/GE_EXPR
	support when the operands are unknown but potentially equal.
	[MIN_EXPR, MAX_EXPR]: Support minimum/maximum expressions.

2021-08-09  Bin Cheng  <bin.cheng@linux.alibaba.com>

	* config/aarch64/aarch64.md
	(*extend<SHORT:mode><GPI:mode>2_aarch64): Use %<GPI:w>0.

2021-08-08  Sergei Trofimovich  <siarheit@google.com>

	* lra-constraints.c: Fix s/otput/output/ typo.

2021-08-06  Martin Sebor  <msebor@redhat.com>

	* builtins.c (expand_builtin_memchr): Move to gimple-ssa-warn-access.cc.
	(expand_builtin_strcat): Same.
	(expand_builtin_stpncpy): Same.
	(expand_builtin_strncat): Same.
	(check_read_access): Same.
	(check_memop_access): Same.
	(expand_builtin_strlen): Move checks to gimple-ssa-warn-access.cc.
	(expand_builtin_strnlen): Same.
	(expand_builtin_memcpy): Same.
	(expand_builtin_memmove): Same.
	(expand_builtin_mempcpy): Same.
	(expand_builtin_strcpy): Same.
	(expand_builtin_strcpy_args): Same.
	(expand_builtin_stpcpy_1): Same.
	(expand_builtin_strncpy): Same.
	(expand_builtin_memset): Same.
	(expand_builtin_bzero): Same.
	(expand_builtin_strcmp): Same.
	(expand_builtin_strncmp): Same.
	(expand_builtin): Remove handlers.
	(fold_builtin_strlen): Add a comment.
	* builtins.h (check_access): Move to gimple-ssa-warn-access.cc.
	* calls.c (maybe_warn_nonstring_arg): Same.
	* diagnostic-spec.c (nowarn_spec_t::nowarn_spec_t): Add warning option.
	* gimple-fold.c (gimple_fold_builtin_strcpy): Pass argument to callee.
	(gimple_fold_builtin_stpcpy): Same.
	* gimple-ssa-warn-access.cc (has_location): New function.
	(get_location): Same.
	(get_callee_fndecl): Same.
	(call_nargs): Same.
	(call_arg): Same.
	(warn_string_no_nul): Define.
	(unterminated_array): Same.
	(check_nul_terminated_array): Same.
	(maybe_warn_nonstring_arg): Same.
	(maybe_warn_for_bound): Same.
	(warn_for_access): Same.
	(check_access): Same.
	(check_memop_access): Same.
	(check_read_access): Same.
	(warn_dealloc_offset): Use helper functions.
	(maybe_emit_free_warning): Same.
	(class pass_waccess): Add members.
	(check_strcat): New function.
	(check_strncat): New function.
	(check_stxcpy): New function.
	(check_stxncpy): New function.
	(check_strncmp): New function.
	(pass_waccess::check_builtin): New function.
	(pass_waccess::check): Call it.
	* gimple-ssa-warn-access.h (warn_string_no_nul): Move here from
	builtins.h.
	(maybe_warn_for_bound): Same.
	(check_access): Same.
	(check_memop_access): Same.
	(check_read_access): Same.
	* pointer-query.h (struct access_data): Define a ctor overload.

2021-08-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101801
	* tree-vectorizer.h (vect_worthwhile_without_simd_p): Rename...
	(vect_can_vectorize_without_simd_p): ... to this.
	* tree-vect-loop.c (vect_worthwhile_without_simd_p): Rename...
	(vect_can_vectorize_without_simd_p): ... to this and fold
	in vect_min_worthwhile_factor.
	(vect_min_worthwhile_factor): Remove.
	(vectorizable_reduction): Adjust and remove the cost part.
	* tree-vect-stmts.c (vectorizable_shift): Likewise.
	(vectorizable_operation): Likewise.

2021-08-06  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/101797
	* config/i386/i386.md (cmove reg-to-reg move elimination peephole2s):
	Add general_gr_operand predicate to operand 3.

2021-08-06  Roger Sayle  <roger@nextmovesoftware.com>

	* tree-ssa-phiopt.c (cond_removal_in_builtin_zero_pattern): Use
	CFN_BUILT_IN_CLRSB* instead of BUILT_IN_CLRSB* for consistency.

2021-08-06  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-sve-builtins.cc (register_svpattern,
	register_svprfop): Pass vec<> by pointer.
	* langhooks-def.h (lhd_simulate_enum_decl): Likewise.
	* langhooks.c (lhd_simulate_enum_decl): Likewise.
	* langhooks.h (struct lang_hooks_for_types): Likewise.

2021-08-06  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vst1_bf16_x2): Use
	__builtin_memcpy instead of constructing an additional
	__builtin_aarch64_simd_oi one vector at a time.
	(vst1q_bf16_x2): Likewise.
	(vst1_bf16_x3): Use __builtin_memcpy instead of constructing
	an additional __builtin_aarch64_simd_ci one vector at a time.
	(vst1q_bf16_x3): Likewise.
	(vst1_bf16_x4): Use __builtin_memcpy instead of a union.
	(vst1q_bf16_x4): Likewise.
	(vst2_bf16): Use __builtin_memcpy instead of constructing an
	additional __builtin_aarch64_simd_oi one vector at a time.
	(vst2q_bf16): Likewise.
	(vst3_bf16): Use __builtin_memcpy instead of constructing an
	additional __builtin_aarch64_simd_ci mode one vector at a
	time.
	(vst3q_bf16): Likewise.
	(vst4_bf16): Use __builtin_memcpy instead of constructing an
	additional __builtin_aarch64_simd_xi one vector at a time.
	(vst4q_bf16): Likewise.

2021-08-06  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (__ST2_LANE_FUNC): Delete.
	(__ST2Q_LANE_FUNC): Delete.
	(vst2_lane_f16): Use __builtin_memcpy to copy vector
	structure instead of constructing __builtin_aarch64_simd_oi
	one vector at a time.
	(vst2_lane_f32): Likewise.
	(vst2_lane_f64): Likewise.
	(vst2_lane_p8): Likewise.
	(vst2_lane_p16): Likewise.
	(vst2_lane_p64): Likewise.
	(vst2_lane_s8): Likewise.
	(vst2_lane_s16): Likewise.
	(vst2_lane_s32): Likewise.
	(vst2_lane_s64): Likewise.
	(vst2_lane_u8): Likewise.
	(vst2_lane_u16): Likewise.
	(vst2_lane_u32): Likewise.
	(vst2_lane_u64): Likewise.
	(vst2_lane_bf16): Likewise.
	(vst2q_lane_f16): Use __builtin_memcpy to copy vector
	structure instead of using a union.
	(vst2q_lane_f32): Likewise.
	(vst2q_lane_f64): Likewise.
	(vst2q_lane_p8): Likewise.
	(vst2q_lane_p16): Likewise.
	(vst2q_lane_p64): Likewise.
	(vst2q_lane_s8): Likewise.
	(vst2q_lane_s16): Likewise.
	(vst2q_lane_s32): Likewise.
	(vst2q_lane_s64): Likewise.
	(vst2q_lane_u8): Likewise.
	(vst2q_lane_u16): Likewise.
	(vst2q_lane_u32): Likewise.
	(vst2q_lane_u64): Likewise.
	(vst2q_lane_bf16): Likewise.

2021-08-06  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (__ST3_LANE_FUNC): Delete.
	(__ST3Q_LANE_FUNC): Delete.
	(vst3_lane_f16): Use __builtin_memcpy to copy vector
	structure instead of constructing __builtin_aarch64_simd_ci
	one vector at a time.
	(vst3_lane_f32): Likewise.
	(vst3_lane_f64): Likewise.
	(vst3_lane_p8): Likewise.
	(vst3_lane_p16): Likewise.
	(vst3_lane_p64): Likewise.
	(vst3_lane_s8): Likewise.
	(vst3_lane_s16): Likewise.
	(vst3_lane_s32): Likewise.
	(vst3_lane_s64): Likewise.
	(vst3_lane_u8): Likewise.
	(vst3_lane_u16): Likewise.
	(vst3_lane_u32): Likewise.
	(vst3_lane_u64): Likewise.
	(vst3_lane_bf16): Likewise.
	(vst3q_lane_f16): Use __builtin_memcpy to copy vector
	structure instead of using a union.
	(vst3q_lane_f32): Likewise.
	(vst3q_lane_f64): Likewise.
	(vst3q_lane_p8): Likewise.
	(vst3q_lane_p16): Likewise.
	(vst3q_lane_p64): Likewise.
	(vst3q_lane_s8): Likewise.
	(vst3q_lane_s16): Likewise.
	(vst3q_lane_s32): Likewise.
	(vst3q_lane_s64): Likewise.
	(vst3q_lane_u8): Likewise.
	(vst3q_lane_u16): Likewise.
	(vst3q_lane_u32): Likewise.
	(vst3q_lane_u64): Likewise.
	(vst3q_lane_bf16): Likewise.

2021-08-06  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (__ST4_LANE_FUNC): Delete.
	(__ST4Q_LANE_FUNC): Delete.
	(vst4_lane_f16): Use __builtin_memcpy to copy vector
	structure instead of constructing __builtin_aarch64_simd_xi
	one vector at a time.
	(vst4_lane_f32): Likewise.
	(vst4_lane_f64): Likewise.
	(vst4_lane_p8): Likewise.
	(vst4_lane_p16): Likewise.
	(vst4_lane_p64): Likewise.
	(vst4_lane_s8): Likewise.
	(vst4_lane_s16): Likewise.
	(vst4_lane_s32): Likewise.
	(vst4_lane_s64): Likewise.
	(vst4_lane_u8): Likewise.
	(vst4_lane_u16): Likewise.
	(vst4_lane_u32): Likewise.
	(vst4_lane_u64): Likewise.
	(vst4_lane_bf16): Likewise.
	(vst4q_lane_f16): Use __builtin_memcpy to copy vector
	structure instead of using a union.
	(vst4q_lane_f32): Likewise.
	(vst4q_lane_f64): Likewise.
	(vst4q_lane_p8): Likewise.
	(vst4q_lane_p16): Likewise.
	(vst4q_lane_p64): Likewise.
	(vst4q_lane_s8): Likewise.
	(vst4q_lane_s16): Likewise.
	(vst4q_lane_s32): Likewise.
	(vst4q_lane_s64): Likewise.
	(vst4q_lane_u8): Likewise.
	(vst4q_lane_u16): Likewise.
	(vst4q_lane_u32): Likewise.
	(vst4q_lane_u64): Likewise.
	(vst4q_lane_bf16): Likewise.

2021-08-06  Martin Liska  <mliska@suse.cz>

	* config/rs6000/rs6000.c (rs6000_option_override_internal): When
	a target option is restored, it can have
	rs6000_long_double_type_size set to FLOAT_PRECISION_TFmode
	and error should not be emitted.

2021-08-06  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* gcov-io.h (gcov_write): Declare.
	* gcov-io.c (gcov_write): New.
	(gcov_write_counter): Remove.
	(gcov_write_tag_length): Likewise.
	(gcov_write_summary): Replace gcov_write_tag_length() with calls to
	gcov_write_unsigned().
	* doc/invoke.texi (fprofile-info-section): Mention
	__gcov_info_to_gdca().

2021-08-06  Martin Sebor  <msebor@redhat.com>

	* dominance.c (prune_bbs_to_update_dominators): Adjust by-value vec
	arguments to by-reference.
	(iterate_fix_dominators): Same.
	* dominance.h (iterate_fix_dominators): Same.
	* ipa-prop.h: Call auto_vec::to_vec_legacy.
	* tree-data-ref.c (dump_data_dependence_relation): Adjust by-value vec
	arguments to by-reference.
	(debug_data_dependence_relation): Same.
	(dump_data_dependence_relations): Same.
	* tree-data-ref.h (debug_data_dependence_relation): Same.
	(dump_data_dependence_relations): Same.
	* tree-predcom.c (dump_chains): Same.
	(initialize_root_vars_lm): Same.
	(determine_unroll_factor): Same.
	(replace_phis_by_defined_names): Same.
	(insert_init_seqs): Same.
	(pcom_worker::tree_predictive_commoning_loop): Call
	 auto_vec::to_vec_legacy.
	* tree-ssa-pre.c (insert_into_preds_of_block): Adjust by-value vec
	arguments to by-reference.
	* tree-ssa-threadbackward.c (populate_worklist): Same.
	(back_threader::resolve_def): Same.
	* tree-vect-data-refs.c (vect_check_nonzero_value): Same.
	(vect_enhance_data_refs_alignment): Same.
	(vect_check_lower_bound): Same.
	(vect_prune_runtime_alias_test_list): Same.
	(vect_permute_store_chain): Same.
	* tree-vect-slp-patterns.c (vect_normalize_conj_loc): Same.
	* tree-vect-stmts.c (vect_create_vectorized_demotion_stmts): Same.
	* tree-vectorizer.h (vect_permute_store_chain): Same.
	* vec.c (test_init): New function.
	(vec_c_tests): Call new function.
	* vec.h (vec): Declare ctors, dtor, and assignment.
	(auto_vec::vec_to_legacy): New function.
	(vec::copy): Adjust initialization.

2021-08-05  H.J. Lu  <hjl.tools@gmail.com>

	PR target/99744
	* config/i386/i386.c (ix86_can_inline_p): Ignore MASK_80387 if
	callee only uses GPRs.
	* config/i386/ia32intrin.h: Revert commit 5463cee2770.
	* config/i386/serializeintrin.h: Revert commit 71958f740f1.
	* config/i386/x86gprintrin.h: Add
	#pragma GCC target("general-regs-only") and #pragma GCC pop_options
	to disable non-GPR ISAs.

2021-08-05  Richard Sandiford  <richard.sandiford@arm.com>

	PR middle-end/101787
	* doc/md.texi (cond_ashl, cond_ashr, cond_lshr): Document.

2021-08-05  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vectorizer.h (vect_is_store_elt_extraction, vect_is_reduction)
	(vect_reduc_type, vect_embedded_comparison_type, vect_comparison_type)
	(vect_is_extending_load, vect_is_integer_truncation): New functions,
	moved from aarch64.c but given different names.
	* config/aarch64/aarch64.c (aarch64_is_store_elt_extraction)
	(aarch64_is_reduction, aarch64_reduc_type)
	(aarch64_embedded_comparison_type, aarch64_comparison_type)
	(aarch64_extending_load_p, aarch64_integer_truncation_p): Delete
	in favor of the above.  Update callers accordingly.

2021-08-05  Richard Earnshaw  <rearnsha@arm.com>

	PR target/101723
	* config/arm/arm-cpus.in (generic-armv7-a): Add quirk to suppress
	writing .cpu directive in asm output.
	* config/arm/arm.c (arm_identify_fpu_from_isa): New variable.
	(arm_last_printed_arch_string): Delete.
	(arm_last-printed_fpu_string): Delete.
	(arm_configure_build_target): If use of floating-point/SIMD is
	disabled, remove all fp/simd related features from the target ISA.
	(last_arm_targ_options): New variable.
	(arm_print_asm_arch_directives): Add new parameters.  Change order
	of emitted directives and handle all cases here.
	(arm_file_start): Always call arm_print_asm_arch_directives, move
	all generation of .arch/.arch_extension here.
	(arm_file_end): Call arm_print_asm_arch.
	(arm_declare_function_name): Call arm_print_asm_arch_directives
	instead of printing .arch/.fpu directives directly.

2021-08-05  Richard Earnshaw  <rearnsha@arm.com>

	* config/arm/arm.c (arm_configure_build_target): Don't call
	arm_option_reconfigure_globals.
	(arm_option_restore): Call arm_option_reconfigure_globals after
	reconfiguring the target.
	* config/arm/arm-c.c (arm_pragma_target_parse): Likewise.

2021-08-05  Richard Earnshaw  <rearnsha@arm.com>

	* config/arm/arm.c (arm_configure_build_target): Ensure the target's
	arch_name is always set.

2021-08-05  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64.c: Traverse RTL tree to prevent cost
	of vec_select high-half from being added into Neon subtract
	cost.

2021-08-05  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64.c: Traverse RTL tree to prevent cost
	of vec_select high-half from being added into Neon add cost.

2021-08-05  Kewen Lin  <linkw@linux.ibm.com>

	* cfgloop.h (loops_list::loops_list): Add one optional argument
	root and adjust accordingly, update loop tree walking and factor
	out to ...
	* cfgloop.c (loops_list::walk_loop_tree): ... this.  New function.

2021-08-05  Eric Botcazou  <ebotcazou@gcc.gnu.org>

	PR tree-optimization/101626
	* tree-sra.c (propagate_subaccesses_from_rhs): Do not set the
	reverse scalar storage order on a pointer or vector component.

2021-08-05  liuhongt  <hongtao.liu@intel.com>

	* config/i386/sse.md (cond_<code><mode>): New expander.

2021-08-05  liuhongt  <hongtao.liu@intel.com>

	* config/i386/sse.md (cond_<code><mode>): New expander.

2021-08-05  liuhongt  <hongtao.liu@intel.com>

	* config/i386/sse.md (cond_<code><mode>): New expander.

2021-08-04  David Malcolm  <dmalcolm@redhat.com>

	PR analyzer/101570
	* Makefile.in (ANALYZER_OBJS): Add analyzer/region-model-asm.o.

2021-08-04  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101742
	* config/i386/i386.h (STORE_MAX_PIECES): Allow 16/32/64 bytes
	only if TARGET_INTER_UNIT_MOVES_TO_VEC is true.

2021-08-04  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101772
	* config/i386/i386-expand.c (ix86_expand_vector_move): Call
	ix86_gen_scratch_sse_rtx to get a scratch SSE register to copy
	data with SSE register from one memory location to another.

2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/s390.c (expand_perm_with_vpdi): New function.
	(vectorize_vec_perm_const_1): Call expand_perm_with_vpdi.
	* config/s390/vector.md (*vpdi1<mode>, @vpdi1<mode>): Enable a
	parameterized expander.
	(*vpdi4<mode>, @vpdi4<mode>): Likewise.

2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/s390.c (MAX_VECT_LEN): Define macro.
	(struct expand_vec_perm_d): Define struct.
	(expand_perm_with_merge): New function.
	(vectorize_vec_perm_const_1): New function.
	(s390_vectorize_vec_perm_const): New function.
	(TARGET_VECTORIZE_VEC_PERM_CONST): Define target macro.

2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/vector.md (V_HW_64): Remove mode iterator.
	(*vec_load_pair<mode>): Use V_HW_2 instead of V_HW_64.
	* config/s390/vx-builtins.md
	(vec_scatter_element<V_HW_2:mode>_SI): Use V_HW_2 instead of
	V_HW_64.

2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/s390.md (UNSPEC_VEC_PERMI): Remove constant
	definition.
	* config/s390/vector.md (*vpdi1<mode>, *vpdi4<mode>): New pattern
	definitions.
	* config/s390/vx-builtins.md (*vec_permi<mode>): Emit generic rtx
	instead of an unspec.

2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/s390-modes.def: Add more vector modes to support
	concatenation of two vectors.
	* config/s390/s390-protos.h (s390_expand_merge_perm_const): Add
	prototype.
	(s390_expand_merge): Likewise.
	* config/s390/s390.c (s390_expand_merge_perm_const): New function.
	(s390_expand_merge): New function.
	* config/s390/s390.md (UNSPEC_VEC_MERGEH, UNSPEC_VEC_MERGEL):
	Remove constant definitions.
	* config/s390/vector.md (V_HW_2): Add mode iterators.
	(VI_HW_4, V_HW_4): Rename VI_HW_4 to V_HW_4.
	(vec_2x_nelts, vec_2x_wide): New mode attributes.
	(*vmrhb, *vmrlb, *vmrhh, *vmrlh, *vmrhf, *vmrlf, *vmrhg, *vmrlg):
	New pattern definitions.
	(vec_widen_umult_lo_<mode>, vec_widen_umult_hi_<mode>)
	(vec_widen_smult_lo_<mode>, vec_widen_smult_hi_<mode>)
	(vec_unpacks_lo_v4sf, vec_unpacks_hi_v4sf, vec_unpacks_lo_v2df)
	(vec_unpacks_hi_v2df): Adjust expanders to emit non-unspec RTX for
	vec merge.
	* config/s390/vx-builtins.md (V_HW_4): Remove mode iterator. Now
	in vector.md.
	(vec_mergeh<mode>, vec_mergel<mode>): Use s390_expand_merge to
	emit vec merge pattern.

2021-08-04  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64.c (aarch64_strip_extend_vec_half):
	Define.
	(aarch64_rtx_mult_cost): Traverse RTL tree to prevent cost of
	vec_select high-half from being added into Neon multiply
	cost.
	* rtlanal.c (vec_series_highpart_p): Define.
	* rtlanal.h (vec_series_highpart_p): Declare.

2021-08-04  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64.c (aarch64_strip_duplicate_vec_elt):
	Define.
	(aarch64_rtx_mult_cost): Traverse RTL tree to prevent
	vec_select cost from being added into Neon multiply cost.

2021-08-04  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vect-loop.c (vect_better_loop_vinfo_p): Detect cases in
	which old_loop_vinfo is an epilogue loop that handles a constant
	number of iterations.

2021-08-04  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vect-loop.c (vect_analyze_loop): Print a dump message
	when a reanalyzed loop fails to be cheaper than the current
	main loop.

2021-08-04  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c: Fix a typo.

2021-08-04  Vincent Lefèvre  <vincent-gcc@vinc17.net>

	PR gcov-profile/101773
	* gcov-io.c (gcov_close): Check return code of a fclose.

2021-08-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR ada/101575
	* dwarf2out.c (dwarf2out_assembly_start): Emit a dummy
	.file statement when needed.

2021-08-04  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_check_gather_scatter):
	Include widening conversions only when the result is
	still handed by native gather or the current offset
	size not already matches the data size.
	Also succeed analysis in case there's no native support,
	noted by a IFN_LAST ifn and a NULL decl.
	(vect_analyze_data_refs): Always consider gathers.
	* tree-vect-patterns.c (vect_recog_gather_scatter_pattern):
	Test for no IFN gather rather than decl gather.
	* tree-vect-stmts.c (vect_model_load_cost): Pass in the
	gather-scatter info and cost emulated gathers accordingly.
	(vect_truncate_gather_scatter_offset): Properly test for
	no IFN gather.
	(vect_use_strided_gather_scatters_p): Likewise.
	(get_load_store_type): Handle emulated gathers and its
	restrictions.
	(vectorizable_load): Likewise.  Emulate them by extracting
	scalar offsets, doing scalar loads and a vector construct.

2021-08-04  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101742
	* expr.c (op_by_pieces_d::op_by_pieces_d): Add a max_pieces
	argument to set m_max_size.
	(move_by_pieces_d): Pass MOVE_MAX_PIECES to op_by_pieces_d.
	(store_by_pieces_d): Pass STORE_MAX_PIECES to op_by_pieces_d.
	(compare_by_pieces_d): Pass COMPARE_MAX_PIECES to op_by_pieces_d.

2021-08-04  Roger Sayle  <roger@nextmovesoftware.com>
	    Marc Glisse  <marc.glisse@inria.fr>

	* match.pd (bit_ior, bit_xor): Canonicalize (X*C1)|(X*C2) and
	(X*C1)^(X*C2) as X*(C1+C2), and related variants, using
	tree_nonzero_bits to ensure that operands are bit-wise disjoint.

2021-08-04  Richard Biener  <rguenther@suse.de>

	* tree-ssa-forwprop.c (pass_forwprop::execute): Split
	out code to decompose vector loads ...
	(optimize_vector_load): ... here.  Generalize it to
	handle intermediate widening and TARGET_MEM_REF loads
	and apply it to loads with a supported vector mode as well.

2021-08-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101756
	* tree-vect-slp.c (vectorizable_bb_reduc_epilogue): Make sure
	the result of the reduction epilogue is compatible to the original
	scalar result.

2021-08-04  liuhongt  <hongtao.liu@intel.com>

	PR target/101743
	* config/i386/i386.md (peephole2): Refine predicate from
	register_operand to general_reg_operand.

2021-08-04  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-path.h (path_range_query::dump): Mark override.

2021-08-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101769
	* tree-tailcall.c (eliminate_tail_call): Add the created loop
	for the first recursion and return it via the new output parameter.
	(optimize_tail_call): Pass through new output param.
	(tree_optimize_tail_calls_1): After creating all latches,
	add the created loop to the loop tree.  Do not mark loops for fixup.

2021-08-04  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Document threader-mode param.

2021-08-04  liuhongt  <hongtao.liu@intel.com>

	* config/i386/sse.md (cond_fma<mode>): New expander.
	(cond_fms<mode>): Ditto.
	(cond_fnma<mode>): Ditto.
	(cond_fnms<mode>): Ditto.

2021-08-03  Segher Boessenkool  <segher@kernel.crashing.org>

	* config/rs6000/vsx.md (*vsx_le_perm_store_<mode>): Use && instead of &.

2021-08-03  Segher Boessenkool  <segher@kernel.crashing.org>

	* config/rs6000/constraints.md: Remove "e" from the list of available
	constraint characters.

2021-08-03  Eugene Rozenfeld  <erozen@microsoft.com>

	PR gcov-profile/71672
	* auto-profile.c (afdo_indirect_call): Fix setup of the historgram value for indirect calls.

2021-08-03  Paul A. Clarke  <pc@us.ibm.com>

	* config/rs6000/smmintrin.h (_mm_minpos_epu16): New.

2021-08-03  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/i386.c (ix86_gen_scratch_sse_rtx): In 64-bit mode,
	try XMM31 to avoid vzeroupper.

2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>

	* doc/invoke.texi: Document -mtune=neoverse-512tvb and
	-mcpu=neoverse-512tvb.
	* config/aarch64/aarch64-cores.def (neoverse-512tvb): New entry.
	* config/aarch64/aarch64-tune.md: Regenerate.
	* config/aarch64/aarch64.c (neoverse512tvb_sve_vector_cost)
	(neoverse512tvb_sve_issue_info, neoverse512tvb_vec_issue_info)
	(neoverse512tvb_vector_cost, neoverse512tvb_tunings): New structures.
	(aarch64_adjust_body_cost_sve): Handle -mtune=neoverse-512tvb.
	(aarch64_adjust_body_cost): Likewise.

2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (aarch64_add_stmt_cost): Only
	record issue information for operations that occur in the
	innermost loop.

2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (aarch64_multiply_add_p): Add a vec_flags
	parameter.  Detect cases in which an Advanced SIMD MLA would almost
	certainly require a MOV.
	(aarch64_count_ops): Update accordingly.

2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (aarch64_is_store_elt_extraction): New
	function, split out from...
	(aarch64_detect_vector_stmt_subtype): ...here.
	(aarch64_add_stmt_cost): Treat extracting element 0 as free.

2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-protos.h (sve_vec_cost):
	Add gather_load_x32_cost and gather_load_x64_cost.
	* config/aarch64/aarch64.c (generic_sve_vector_cost)
	(a64fx_sve_vector_cost, neoversev1_sve_vector_cost): Update
	accordingly, using the values given by the scalar_load * number
	of elements calculation that we used previously.
	(aarch64_detect_vector_stmt_subtype): Use the new fields.

2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (aarch64_adjust_body_cost_sve): New
	function, split out from...
	(aarch64_adjust_body_cost): ...here.

2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/fractional-cost.h: New file.
	* config/aarch64/aarch64.c: Include <algorithm> (indirectly)
	and cost_fraction.h.
	(vec_cost_fraction): New typedef.
	(aarch64_detect_scalar_stmt_subtype): Use it for statement costs.
	(aarch64_detect_vector_stmt_subtype): Likewise.
	(aarch64_sve_adjust_stmt_cost, aarch64_adjust_stmt_cost): Likewise.
	(aarch64_estimate_min_cycles_per_iter): Use vec_cost_fraction
	for cycle counts.
	(aarch64_adjust_body_cost): Likewise.
	(aarch64_test_cost_fraction): New function.
	(aarch64_run_selftests): Call it.

2021-08-03  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-protos.h (tune_params::sve_width): Turn
	into a bitmask.
	* config/aarch64/aarch64.c (aarch64_cmp_autovec_modes): Update
	accordingly.
	(aarch64_estimated_poly_value): Likewise.  Use the least significant
	set bit for the minimum and likely values.  Use the most significant
	set bit for the maximum value.

2021-08-03  liuhongt  <hongtao.liu@intel.com>

	* config/i386/sse.md (cond_<insn><mode>): New expander.
	(cond_mul<mode>): Ditto.

2021-08-03  Kewen Lin  <linkw@linux.ibm.com>

	* tree-cfg.c (move_sese_region_to_fn): Fix typos on dloop.

2021-08-03  liuhongt  <hongtao.liu@intel.com>

	* config/i386/sse.md (cond_<insn><mode>):New expander.
	(cond_mul<mode>): Ditto.
	(cond_div<mode>): Ditto.

2021-08-02  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/i386.c (ix86_finalize_stack_frame_flags): Also
	check stack_realign_needed for stack realignment.
	(ix86_legitimate_constant_p): Always allow CONST_WIDE_INT smaller
	than the largest integer supported by vector register.
	* config/i386/i386.h (MAX_MOVE_MAX): New.  Set to 64.
	(MOVE_MAX): Set to bytes of the largest integer supported by
	vector register.
	(STORE_MAX_PIECES): New.

2021-08-02  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/i386-expand.c (ix86_expand_vector_move): Call
	ix86_gen_scratch_sse_rtx to get a scratch SSE register to copy
	data from one memory location to another.

2021-08-02  H.J. Lu  <hjl.tools@gmail.com>

	PR middle-end/90773
	* config/i386/i386.c (TARGET_GEN_MEMSET_SCRATCH_RTX): New.

2021-08-02  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/101724
	* params.opt: Remove --param=threader-iterative.
	* tree-ssa-threadbackward.c (pass_thread_jumps::execute): Remove
	iterative mode.

2021-08-02  Tom de Vries  <tdevries@suse.de>

	PR middle-end/101665
	* doc/extend.texi (nonnull attribute): Improve documentation.

2021-08-02  Andrew Pinski  <apinski@marvell.com>

	PR rtl-optimization/101683
	* rtlanal.c (may_trap_p_1): Handle UNSIGNED_FIX.

2021-08-02  Roger Sayle  <roger@nextmovesoftware.com>

	* tree-ssa-phiopt.c (cond_removal_in_builtin_zero_pattern):
	Renamed from cond_removal_in_popcount_clz_ctz_pattern.
	Add support for BSWAP, FFS, PARITY and CLRSB builtins.
	(tree_ssa_phiop_worker): Update call to function above.

2021-08-01  H.J. Lu  <hjl.tools@gmail.com>

	PR target/78103
	* config/i386/i386.md (bsr_rex64_1_zext): New.
	(combine splitter for constant - clzll): Replace gen_bsr_rex64_1
	with gen_bsr_rex64_1_zext.

2021-07-31  Jakub Jelinek  <jakub@redhat.com>

	PR target/78103
	* config/i386/i386.md (bsr_rex64_1, bsr_1, bsr_zext_1): New
	define_insn patterns.
	(*bsr_rex64_2, *bsr_2): New define_insn_and_split patterns.
	Add combine splitters for constant - clz.
	(clz<mode>2): Use a temporary pseudo for bsr result.

2021-07-30  Paul A. Clarke  <pc@us.ibm.com>

	* config/rs6000/smmintrin.h (_mm_floor_pd, _mm_floor_ps,
	_mm_floor_sd, _mm_floor_ss): New.

2021-07-30  Paul A. Clarke  <pc@us.ibm.com>

	* config/rs6000/smmintrin.h (_mm_ceil_pd, _mm_ceil_ps,
	_mm_ceil_sd, _mm_ceil_ss): New.

2021-07-30  Paul A. Clarke  <pc@us.ibm.com>

	* config/rs6000/smmintrin.h (_mm_blend_pd, _mm_blendv_pd,
	_mm_blend_ps, _mm_blendv_ps): New.

2021-07-30  Roger Sayle  <roger@nextmovesoftware.com>
	    Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (*dec_cmov<mode>): New define_insn_and_split
	to generate a conditional move using the carry flag after sub $1.
	(peephole2): Eliminate a register-to-register move by inverting
	the condition of a conditional move.

2021-07-30  Hans-Peter Nilsson  <hp@bitrange.com>

	* config/mmix/mmix.md ("call", "call_value", "*call_real")
	("*call_value_real"): Don't generate rtx mentioning the generic
	operands 1 and 2 to "call", and similarly for "call_value".
	* config/mmix/mmix.c (mmix_print_operand_punct_valid_p)
	(mmix_print_operand): Use '!' instead of 'p'.

2021-07-30  Hans-Peter Nilsson  <hp@bitrange.com>

	* doc/md.texi (call): Correct information about operand 2.
	* config/mmix/mmix.md ("call", "call_value"): Remove fixed FIXMEs.

2021-07-30  Andrew MacLeod  <amacleod@redhat.com>

	* range-op.cc (operator_trunc_mod::wi_fold): Fold constants.

2021-07-30  Andrew MacLeod  <amacleod@redhat.com>

	* range-op.cc (operator_div::wi_fold): Return UNDEFINED for [0, 0] divisor.

2021-07-30  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (*::set_bb_range): Change const basic_block to
	const_basic_block..
	(*::get_bb_range): Ditto.
	(*::bb_range_p): Ditto.
	* gimple-range-cache.h: Change prototypes.

2021-07-30  H.J. Lu  <hjl.tools@gmail.com>

	PR middle-end/90773
	* builtins.c (builtin_memcpy_read_str): Change the mode argument
	from scalar_int_mode to fixed_size_mode.
	(builtin_strncpy_read_str): Likewise.
	(gen_memset_value_from_prev): New function.
	(builtin_memset_read_str): Change the mode argument from
	scalar_int_mode to fixed_size_mode.  Use gen_memset_value_from_prev
	and support CONST_VECTOR.
	(builtin_memset_gen_str): Likewise.
	(try_store_by_multiple_pieces): Use by_pieces_constfn to declare
	constfun.
	* builtins.h (builtin_strncpy_read_str): Replace scalar_int_mode
	with fixed_size_mode.
	(builtin_memset_read_str): Likewise.
	* expr.c (widest_int_mode_for_size): Renamed to ...
	(widest_fixed_size_mode_for_size): Add a bool argument to
	indicate if QI vector mode can be used.
	(by_pieces_ninsns): Call widest_fixed_size_mode_for_size
	instead of widest_int_mode_for_size.
	(pieces_addr::adjust): Change the mode argument from
	scalar_int_mode to fixed_size_mode.
	(op_by_pieces_d): Make m_len read-only.  Add a bool member,
	m_qi_vector_mode, to indicate that QI vector mode can be used.
	(op_by_pieces_d::op_by_pieces_d): Add a bool argument to
	initialize m_qi_vector_mode.  Call widest_fixed_size_mode_for_size
	instead of widest_int_mode_for_size.
	(op_by_pieces_d::get_usable_mode): Change the mode argument from
	scalar_int_mode to fixed_size_mode.  Call
	widest_fixed_size_mode_for_size instead of
	widest_int_mode_for_size.
	(op_by_pieces_d::smallest_fixed_size_mode_for_size): New member
	function to return the smallest integer or QI vector mode.
	(op_by_pieces_d::run): Call widest_fixed_size_mode_for_size
	instead of widest_int_mode_for_size.  Call
	smallest_fixed_size_mode_for_size instead of
	smallest_int_mode_for_size.
	(store_by_pieces_d::store_by_pieces_d): Add a bool argument to
	indicate that QI vector mode can be used and pass it to
	op_by_pieces_d::op_by_pieces_d.
	(can_store_by_pieces): Call widest_fixed_size_mode_for_size
	instead of widest_int_mode_for_size.  Pass memsetp to
	widest_fixed_size_mode_for_size to support QI vector mode.
	Allow all CONST_VECTORs for memset if vec_duplicate is supported.
	(store_by_pieces): Pass memsetp to
	store_by_pieces_d::store_by_pieces_d.
	(clear_by_pieces_1): Removed.
	(clear_by_pieces): Replace clear_by_pieces_1 with
	builtin_memset_read_str and pass true to store_by_pieces_d to
	support vector mode broadcast.
	(string_cst_read_str): Change the mode argument from
	scalar_int_mode to fixed_size_mode.
	* expr.h (by_pieces_constfn): Change scalar_int_mode to
	fixed_size_mode.
	(by_pieces_prev): Likewise.
	* rtl.h (lowpart_subreg_regno): New.
	* rtlanal.c (lowpart_subreg_regno): New.  A wrapper around
	simplify_subreg_regno.
	* target.def (gen_memset_scratch_rtx): New hook.
	* doc/tm.texi.in: Add TARGET_GEN_MEMSET_SCRATCH_RTX.
	* doc/tm.texi: Regenerated.

2021-07-30  Xi Ruoyao  <xry111@mengyan1223.wang>

	PR target/94780
	* config/mips/mips.c (mips_atomic_assign_expand_fenv): Use
	  TARGET_EXPR instead of MODIFY_EXPR.

2021-07-30  Xi Ruoyao  <xry111@mengyan1223.wang>

	PR target/101132
	* config/mips/mips-protos.h (mips_expand_vec_cmp_expr): Declare.
	* config/mips/mips.c (mips_expand_vec_cmp_expr): New function.
	* config/mips/mips-msa.md (vec_cmp<MSA:mode><mode_i>): New
	  expander.
	  (vec_cmpu<IMSA:mode><mode_i>): New expander.

2021-07-30  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101685
	* config/i386/i386-options.c (ix86_option_override_internal):
	Don't enable LZCNT/POPCNT if they have been disabled explicitly.

2021-07-30  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>

	PR target/66791
	* config/arm/arm_neon.h (vld1_p64): Replace call to builtin by
	explicitly dereferencing __a.
	(vld1_s64): Likewise.
	(vld1_u64): Likewise.
	* config/arm/arm_neon_builtins.def (vld1): Remove entry for di
	and change to VAR13.

2021-07-30  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-loop-versioning.cc (lv_dom_walker::lv_dom_walker): Remove
	use of m_range_analyzer.
	(loop_versioning::lv_dom_walker::before_dom_children): Same.
	(loop_versioning::lv_dom_walker::after_dom_children): Remove.
	(loop_versioning::prune_loop_conditions): Replace vr_values use
	with range_query interface.
	(pass_loop_versioning::execute): Use ranger.

2021-07-30  Xi Ruoyao  <xry111@mengyan1223.wang>

	PR ipa/101396
	* ipa-devirt.c (ipa_odr_read_section): Compare the precision of
	  enum values, and emit a warning if they mismatch.

2021-07-30  Kewen Lin  <linkw@linux.ibm.com>

	* cfgloop.h (as_const): New function.
	(class loop_iterator): Rename to ...
	(class loops_list): ... this.
	(loop_iterator::next): Rename to ...
	(loops_list::Iter::fill_curr_loop): ... this and adjust.
	(loop_iterator::loop_iterator): Rename to ...
	(loops_list::loops_list): ... this and adjust.
	(loops_list::Iter): New class.
	(loops_list::iterator): New type.
	(loops_list::const_iterator): New type.
	(loops_list::begin): New function.
	(loops_list::end): Likewise.
	(loops_list::begin const): Likewise.
	(loops_list::end const): Likewise.
	(FOR_EACH_LOOP): Remove.
	(FOR_EACH_LOOP_FN): Remove.
	* cfgloop.c (flow_loops_dump): Adjust FOR_EACH_LOOP* with range-based
	for loop with loops_list instance.
	(sort_sibling_loops): Likewise.
	(disambiguate_loops_with_multiple_latches): Likewise.
	(verify_loop_structure): Likewise.
	* cfgloopmanip.c (create_preheaders): Likewise.
	(force_single_succ_latches): Likewise.
	* config/aarch64/falkor-tag-collision-avoidance.c
	(execute_tag_collision_avoidance): Likewise.
	* config/mn10300/mn10300.c (mn10300_scan_for_setlb_lcc): Likewise.
	* config/s390/s390.c (s390_adjust_loops): Likewise.
	* doc/loop.texi: Likewise.
	* gimple-loop-interchange.cc (pass_linterchange::execute): Likewise.
	* gimple-loop-jam.c (tree_loop_unroll_and_jam): Likewise.
	* gimple-loop-versioning.cc (loop_versioning::analyze_blocks): Likewise.
	(loop_versioning::make_versioning_decisions): Likewise.
	* gimple-ssa-split-paths.c (split_paths): Likewise.
	* graphite-isl-ast-to-gimple.c (graphite_regenerate_ast_isl): Likewise.
	* graphite.c (canonicalize_loop_form): Likewise.
	(graphite_transform_loops): Likewise.
	* ipa-fnsummary.c (analyze_function_body): Likewise.
	* ipa-pure-const.c (analyze_function): Likewise.
	* loop-doloop.c (doloop_optimize_loops): Likewise.
	* loop-init.c (loop_optimizer_finalize): Likewise.
	(fix_loop_structure): Likewise.
	* loop-invariant.c (calculate_loop_reg_pressure): Likewise.
	(move_loop_invariants): Likewise.
	* loop-unroll.c (decide_unrolling): Likewise.
	(unroll_loops): Likewise.
	* modulo-sched.c (sms_schedule): Likewise.
	* predict.c (predict_loops): Likewise.
	(pass_profile::execute): Likewise.
	* profile.c (branch_prob): Likewise.
	* sel-sched-ir.c (sel_finish_pipelining): Likewise.
	(sel_find_rgns): Likewise.
	* tree-cfg.c (replace_loop_annotate): Likewise.
	(replace_uses_by): Likewise.
	(move_sese_region_to_fn): Likewise.
	* tree-if-conv.c (pass_if_conversion::execute): Likewise.
	* tree-loop-distribution.c (loop_distribution::execute): Likewise.
	* tree-parloops.c (parallelize_loops): Likewise.
	* tree-predcom.c (tree_predictive_commoning): Likewise.
	* tree-scalar-evolution.c (scev_initialize): Likewise.
	(scev_reset): Likewise.
	* tree-ssa-dce.c (find_obviously_necessary_stmts): Likewise.
	* tree-ssa-live.c (remove_unused_locals): Likewise.
	* tree-ssa-loop-ch.c (ch_base::copy_headers): Likewise.
	* tree-ssa-loop-im.c (analyze_memory_references): Likewise.
	(tree_ssa_lim_initialize): Likewise.
	* tree-ssa-loop-ivcanon.c (canonicalize_induction_variables): Likewise.
	* tree-ssa-loop-ivopts.c (tree_ssa_iv_optimize): Likewise.
	* tree-ssa-loop-manip.c (get_loops_exits): Likewise.
	* tree-ssa-loop-niter.c (estimate_numbers_of_iterations): Likewise.
	(free_numbers_of_iterations_estimates): Likewise.
	* tree-ssa-loop-prefetch.c (tree_ssa_prefetch_arrays): Likewise.
	* tree-ssa-loop-split.c (tree_ssa_split_loops): Likewise.
	* tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Likewise.
	* tree-ssa-loop.c (gate_oacc_kernels): Likewise.
	(pass_scev_cprop::execute): Likewise.
	* tree-ssa-propagate.c (clean_up_loop_closed_phi): Likewise.
	* tree-ssa-sccvn.c (do_rpo_vn): Likewise.
	* tree-ssa-threadupdate.c
	(jump_thread_path_registry::thread_through_all_blocks): Likewise.
	* tree-vectorizer.c (vectorize_loops): Likewise.
	* tree-vrp.c (vrp_asserts::find_assert_locations): Likewise.

2021-07-29  Hans-Peter Nilsson  <hp@bitrange.com>

	* config/mmix/mmix.c (mmix_function_arg_1): Avoid
	generating a VOIDmode register for e.g the
	function_arg_info::end_marker.

2021-07-29  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/h8300-modes.def: Add CCZ, CCV and CCC, drop CCZNV.
	* config/h8300/h8300.md (H8cc mode iterator): Add CCZ.
	(cc mode_attr): Similarly.
	(ccz subst_attr): Similarly.
	* config/h8300/jumpcall.md: Add new patterns for branch-on-bit.
	* config/h8300/testcompare.md: Remove various cc0 based patterns
	that had been commented out.  Add pattern to set CCZ from a bit
	test.

2021-07-29  Thomas Schwinge  <thomas@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>
	    Kwok Cheung Yeung  <kcy@codesourcery.com>

	* omp-offload.c (oacc_loop_xform_head_tail, oacc_loop_process):
	'update_stmt' after modification.
	(pass_oacc_loop_designation): New function, extracted out of...
	(pass_oacc_device_lower): ... this.
	(pass_data_oacc_loop_designation, pass_oacc_loop_designation)
	(make_pass_oacc_loop_designation): New
	* passes.def: Add it.
	* tree-parloops.c (create_parallel_loop): Adjust.
	* tree-pass.h (make_pass_oacc_loop_designation): New.

2021-07-29  Aldy Hernandez  <aldyh@redhat.com>

	* flag-types.h (enum threader_mode): New.
	* params.opt: Add entry for --param=threader-mode.
	* tree-ssa-threadbackward.c (THREADER_ITERATIVE_MODE): New.
	(class back_threader): New.
	(back_threader::back_threader): New.
	(back_threader::~back_threader): New.
	(back_threader::maybe_register_path): New.
	(back_threader::find_taken_edge): New.
	(back_threader::find_taken_edge_switch): New.
	(back_threader::find_taken_edge_cond): New.
	(back_threader::resolve_def): New.
	(back_threader::resolve_phi): New.
	(back_threader::find_paths_to_names): New.
	(back_threader::find_paths): New.
	(dump_path): New.
	(debug): New.
	(thread_jumps::find_jump_threads_backwards): Call ranger threader.
	(thread_jumps::find_jump_threads_backwards_with_ranger): New.
	(pass_thread_jumps::execute): Abstract out code...
	(try_thread_blocks): ...here.
	* tree-ssa-threadedge.c (jump_threader::thread_outgoing_edges):
	Abstract out threading candidate code to...
	(single_succ_to_potentially_threadable_block): ...here.
	* tree-ssa-threadedge.h (single_succ_to_potentially_threadable_block):
	New.
	* tree-ssa-threadupdate.c (register_jump_thread): Return boolean.
	* tree-ssa-threadupdate.h (class jump_thread_path_registry):
	Return bool from register_jump_thread.

2021-07-29  Andreas Krebbel  <krebbel@linux.ibm.com>

	* target.def: in0 and in1 do not need to be registers.
	* doc/tm.texi: Regenerate.

2021-07-29  liuhongt  <hongtao.liu@intel.com>

	PR target/39821
	* config/i386/i386.c (ix86_widen_mult_cost): New function.
	(ix86_add_stmt_cost): Use ix86_widen_mult_cost for
	WIDEN_MULT_EXPR.

2021-07-29  Jiufu Guo  <guojiufu@linux.ibm.com>

	PR target/61837
	* config/rs6000/rs6000.c (TARGET_PREFERRED_DOLOOP_MODE): New hook.
	(rs6000_preferred_doloop_mode): New hook.
	* doc/tm.texi: Regenerate.
	* doc/tm.texi.in: Add hook preferred_doloop_mode.
	* target.def (preferred_doloop_mode): New hook.
	* targhooks.c (default_preferred_doloop_mode): New hook.
	* targhooks.h (default_preferred_doloop_mode): New hook.
	* tree-ssa-loop-ivopts.c (compute_doloop_base_on_mode): New function.
	(add_iv_candidate_for_doloop): Call targetm.preferred_doloop_mode
	and compute_doloop_base_on_mode.

2021-07-28  Martin Sebor  <msebor@redhat.com>

	PR middle-end/101494
	* tree-ssa-uninit.c (maybe_warn_operand): Correct object offset
	and size computation.

2021-07-28  Martin Sebor  <msebor@redhat.com>

	PR middle-end/101601
	* gimple-array-bounds.cc (array_bounds_checker::check_mem_ref): Remove
	a pointless test.
	Handle pointers to functions.

2021-07-28  Martin Sebor  <msebor@redhat.com>

	* Makefile.in (OBJS): Add gimple-ssa-warn-access.o and pointer-query.o.
	* attribs.h (fndecl_dealloc_argno): Move fndecl_dealloc_argno to tree.h.
	* builtins.c (compute_objsize_r): Move to pointer-query.cc.
	(access_ref::access_ref): Same.
	(access_ref::phi): Same.
	(access_ref::get_ref): Same.
	(access_ref::size_remaining): Same.
	(access_ref::offset_in_range): Same.
	(access_ref::add_offset): Same.
	(access_ref::inform_access): Same.
	(ssa_name_limit_t::visit_phi): Same.
	(ssa_name_limit_t::leave_phi): Same.
	(ssa_name_limit_t::next): Same.
	(ssa_name_limit_t::next_phi): Same.
	(ssa_name_limit_t::~ssa_name_limit_t): Same.
	(pointer_query::pointer_query): Same.
	(pointer_query::get_ref): Same.
	(pointer_query::put_ref): Same.
	(pointer_query::flush_cache): Same.
	(warn_string_no_nul): Move to gimple-ssa-warn-access.cc.
	(check_nul_terminated_array): Same.
	(unterminated_array): Same.
	(maybe_warn_for_bound): Same.
	(check_read_access): Same.
	(warn_for_access): Same.
	(get_size_range): Same.
	(check_access): Same.
	(gimple_call_alloc_size): Move to tree.c.
	(gimple_parm_array_size): Move to pointer-query.cc.
	(get_offset_range): Same.
	(gimple_call_return_array): Same.
	(handle_min_max_size): Same.
	(handle_array_ref): Same.
	(handle_mem_ref): Same.
	(compute_objsize): Same.
	(gimple_call_alloc_p): Move to gimple-ssa-warn-access.cc.
	(call_dealloc_argno): Same.
	(fndecl_dealloc_argno): Same.
	(new_delete_mismatch_p): Same.
	(matching_alloc_calls_p): Same.
	(warn_dealloc_offset): Same.
	(maybe_emit_free_warning): Same.
	* builtins.h (check_nul_terminated_array): Move to
	gimple-ssa-warn-access.h.
	(check_nul_terminated_array): Same.
	(warn_string_no_nul): Same.
	(unterminated_array): Same.
	(class ssa_name_limit_t): Same.
	(class pointer_query): Same.
	(struct access_ref): Same.
	(class range_query): Same.
	(struct access_data): Same.
	(gimple_call_alloc_size): Same.
	(gimple_parm_array_size): Same.
	(compute_objsize): Same.
	(class access_data): Same.
	(maybe_emit_free_warning): Same.
	* calls.c (initialize_argument_information): Remove call to
	maybe_emit_free_warning.
	* gimple-array-bounds.cc: Include new header..
	* gimple-fold.c: Same.
	* gimple-ssa-sprintf.c: Same.
	* gimple-ssa-warn-restrict.c: Same.
	* passes.def: Add pass_warn_access.
	* tree-pass.h (make_pass_warn_access): Declare.
	* tree-ssa-strlen.c: Include new headers.
	* tree.c (fndecl_dealloc_argno): Move here from builtins.c.
	* tree.h (fndecl_dealloc_argno): Move here from attribs.h.
	* gimple-ssa-warn-access.cc: New file.
	* gimple-ssa-warn-access.h: New file.
	* pointer-query.cc: New file.
	* pointer-query.h: New file.

2021-07-28  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/101624
	* ubsan.c (maybe_instrument_pointer_overflow,
	instrument_object_size): Only test DECL_REGISTER on VAR_DECLs,
	PARM_DECLs or RESULT_DECLs.
	* sanopt.c (maybe_optimize_ubsan_ptr_ifn): Likewise.

2021-07-28  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/101642
	* match.pd (bswap16 (x) == bswap16 (y)): Cast both operands
	to type of bswap16 for comparison.
	(bswap16 (x) == cst): Cast bswap16 operand to type of cst.

2021-07-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101615
	* tree-vect-slp.c (vect_optimize_slp): Materialize permutes
	at CTOR SLP graph entries.

2021-07-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64.md (*extend<SHORT:mode><GPI:mode>2_aarch64):
	Add "r,w" alternative.

2021-07-28  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101456
	* config/i386/i386.c (ix86_avx_u128_mode_needed): Don't set
	AVX_U128_DIRTY when all bits are zero.

2021-07-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101615
	* tree-vect-slp.c (vect_optimize_slp): Pre-existing vector
	external nodes cannot be permuted so make them perm_out 0.

2021-07-28  Andrew Stubbs  <ams@codesourcery.com>

	PR target/100208
	* config.in: Regenerate.
	* config/gcn/gcn-hsa.h (A_FIJI): New define.
	(A_900): New define.
	(A_906): New define.
	(A_908): New define.
	(ASM_SPEC): Use A_FIJI, A_900, A_906 and A_908.
	* config/gcn/gcn.c (output_file_start): Adjust attributes according
	to the assembler capabilities.
	* config/gcn/mkoffload.c (main): Likewise.
	* configure: Regenerate.
	* configure.ac: Add tests for LLVM assembler attribute features.

2021-07-28  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-gori.cc (gori_compute::outgoing_edge_range_p): Check for
	cond_false and cond_true on branches.

2021-07-28  Bin Cheng  <bin.cheng@linux.alibaba.com>

	* config/aarch64/aarch64.c (aarch64_gen_adjusted_ldpstp): use
	gcc_stablesort.

2021-07-28  Bin Cheng  <bin.cheng@linux.alibaba.com>

	* alias.c (init_alias_analysis): Don't skip prologue/epilogue.

2021-07-28  Jakub Jelinek  <jakub@redhat.com>

	PR target/101611
	* config/i386/sse.md (vashr<mode>3): Split into vashrv8di3 expander
	and vashrv4di3 expander, where the latter requires just TARGET_AVX2
	and has special !TARGET_AVX512VL expansion.
	(vashrv2di3<mask_name>): Rename to ...
	(vashrv2di3): ... this.  Change condition to TARGET_XOP || TARGET_AVX2
	and add special !TARGET_XOP && !TARGET_AVX512VL expansion.

2021-07-28  Martin Uecker  <muecker@gwdg.de>

	* calls.c (maybe_warn_rdwr_sizes): Correct argument
	numbers in warning that were switched.

2021-07-28  Kewen Lin  <linkw@linux.ibm.com>

	PR tree-optimization/101596
	* tree-vect-patterns.c (vect_recog_mulhs_pattern): Fix wrong check
	by using new_type's precision instead.

2021-07-28  liuhongt  <hongtao.liu@intel.com>

	PR target/99881
	* config/i386/i386.h (processor_costs): Add new member
	integer_to_sse.
	* config/i386/x86-tune-costs.h (ix86_size_cost, i386_cost,
	i486_cost, pentium_cost, lakemont_cost, pentiumpro_cost,
	geode_cost, k6_cost, athlon_cost, k8_cost, amdfam10_cost,
	bdver_cost, znver1_cost, znver2_cost, znver3_cost,
	btver1_cost, btver2_cost, btver3_cost, pentium4_cost,
	nocona_cost, atom_cost, atom_cost, slm_cost, intel_cost,
	generic_cost, core_cost): Initialize integer_to_sse same value
	as sse_op.
	(skylake_cost): Initialize integer_to_sse twice as much as sse_op.
	* config/i386/i386.c (ix86_builtin_vectorization_cost):
	Use integer_to_sse instead of sse_op to calculate the cost of
	vec_construct.

2021-07-27  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (write_ovld_static_init): New
	function.
	(write_init_file): Call write_ovld_static_init.

2021-07-27  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (write_bif_static_init): New
	function.
	(write_init_file): Call write_bif_static_init.

2021-07-27  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (typemap): New struct.
	(TYPE_MAP_SIZE): New macro.
	(type_map): New initialized variable.
	(typemap_cmp): New function.
	(write_type_node): Likewise.
	(write_fntype_init): Implement.

2021-07-27  Martin Sebor  <msebor@redhat.com>

	PR tree-optimization/101584
	* tree-ssa-uninit.c (builtin_call_nomodifying_p): New function.
	(check_defs): Call it.

2021-07-27  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-dom.c (dom_jump_threader_simplifier):
	Put avail_exprs_stack in the class, instead of passing it to
	jump_threader_simplifier.
	(dom_jump_threader_simplifier::simplify): Add state argument.
	(dom_opt_dom_walker): Add state.
	(pass_dominator::execute): Pass state to threader.
	(dom_opt_dom_walker::before_dom_children): Use state.
	* tree-ssa-threadedge.c (jump_threader::jump_threader): Replace
	arguments by state.
	(jump_threader::record_temporary_equivalences_from_phis):
	Register equivalences through the state variable.
	(jump_threader::record_temporary_equivalences_from_stmts_at_dest):
	Record ranges in a statement through the state variable.
	(jump_threader::simplify_control_stmt_condition): Pass state to
	simplify.
	(jump_threader::simplify_control_stmt_condition_1): Same.
	(jump_threader::thread_around_empty_blocks): Remove obsolete
	comment.
	(jump_threader::thread_through_normal_block): Record equivalences
	on edge through the state variable.
	(jump_threader::thread_across_edge): Abstract state pushing.
	(jt_state::jt_state): New.
	(jt_state::push): New.
	(jt_state::pop): New.
	(jt_state::register_equiv): New.
	(jt_state::record_ranges_from_stmt): New.
	(jt_state::register_equivs_on_edge): New.
	(jump_threader_simplifier::jump_threader_simplifier): Move from
	header.
	(jump_threader_simplifier::simplify): Add state argument.
	* tree-ssa-threadedge.h (class jt_state): New.
	(class jump_threader): Add state to constructor.
	(class jump_threader_simplifier): Add state to simplify.  Remove
	avail_exprs_stack from class.
	* tree-vrp.c (vrp_jump_threader_simplifier::simplify): Add state
	argument.
	(vrp_jump_threader::vrp_jump_threader): Add state.
	(vrp_jump_threader::~vrp_jump_threader): Cleanup state.

2021-07-27  Aldy Hernandez  <aldyh@redhat.com>

	* Makefile.in (OBJS): Add gimple-range-path.o.
	* gimple-range-path.cc: New file.
	* gimple-range-path.h: New file.

2021-07-27  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd.md: Push sign/zero-extension
	inside vec_duplicate for all patterns.
	* simplify-rtx.c (simplify_context::simplify_unary_operation_1):
	Push sign/zero-extension inside vec_duplicate.

2021-07-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101573
	* tree-ssa-uninit.c (warn_uninit_phi_uses): New function
	looking at uninitialized PHI arg defs in some constrained cases.
	(warn_uninitialized_vars): Call it.
	(execute_early_warn_uninitialized): Calculate dominators.

2021-07-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/39821
	* tree-vect-stmts.c (vect_model_promotion_demotion_cost): Use
	vector_stmt for widening arithmetic.
	(vectorizable_conversion): Adjust.

2021-07-27  Martin Jambor  <mjambor@suse.cz>

	* cgraph.h (ipa_replace_map): New field force_load_ref.
	* ipa-prop.h (ipa_param_descriptor): Reduce precision of move_cost,
	aded new flag load_dereferenced, adjusted comments.
	(ipa_get_param_dereferenced): New function.
	(ipa_set_param_dereferenced): Likewise.
	* cgraphclones.c (cgraph_node::create_virtual_clone): Follow it.
	* ipa-cp.c: Include gimple.h.
	(ipcp_discover_new_direct_edges): Take into account dereferenced flag.
	(get_replacement_map): New parameter force_load_ref, set the
	appropriate flag in ipa_replace_map if set.
	(struct symbol_and_index_together): New type.
	(adjust_refs_in_act_callers): New function.
	(adjust_references_in_caller): Likewise.
	(create_specialized_node): When appropriate, call
	adjust_references_in_caller and force only load references.
	* ipa-prop.c (load_from_dereferenced_name): New function.
	(ipa_analyze_controlled_uses): Also detect loads from a
	dereference, harden testing of call statements.
	(ipa_write_node_info): Stream the dereferenced flag.
	(ipa_read_node_info): Likewise.
	(ipa_set_jf_constant): Also create refdesc when jump function
	references a variable.
	(cgraph_node_for_jfunc): Rename to symtab_node_for_jfunc, work
	also on references of variables and return a symtab_node.  Adjust
	all callers.
	(propagate_controlled_uses): Also remove references to VAR_DECLs.

2021-07-27  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/101586
	* gimple-fold.c (clear_padding_type): Ignore FIELD_DECLs with byte
	positions above or equal to sz except for diagnostics of flexible
	array members.

2021-07-26  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/78888
	* gimple-range-fold.cc (get_letter_range): New.
	(fold_using_range::range_of_builtin_call): Call get_letter_range.

2021-07-26  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/78888
	* gimple-range-fold.cc (fold_using_range::range_of_builtin_call): Add cases
	for CFN_BUILT_IN_TOUPPER and CFN_BUILT_IN_TOLOWER.

2021-07-26  Roger Sayle  <roger@nextmovesoftware.com>
	    Marc Glisse  <marc.glisse@inria.fr>

	* match.pd (rotate): Simplify equality/inequality of rotations.
	(bswap): Simplify equality/inequality tests of byte swapping.

2021-07-26  Aldy Hernandez  <aldyh@redhat.com>

	* range-op.cc (operator_bitwise_xor::op1_op2_relation_effect):
	New.

2021-07-26  Aldy Hernandez  <aldyh@redhat.com>

	* range-op.cc (operator_lshift::fold_range): Pass rel to
	base class fold_range.
	(operator_rshift::fold_range): Same.

2021-07-26  Ashimida  <ashimida@linux.alibaba.com>

	PR driver/101447
	* toplev.h (min_align_loops_log): Remove declaration.
	(min_align_jumps_log, min_align_labels_log): Likewise.
	(min_align_functions_log): Likewise.

2021-07-26  Aldy Hernandez  <aldyh@redhat.com>

	* tree-vrp.c (vrp_simplify_cond_using_ranges): Rename vr_values
	with range_query.
	(execute_vrp): Abstract out simplification of conditionals...
	(simplify_casted_conds): ...here.

2021-07-26  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-array-bounds.cc (array_bounds_checker::get_value_range):
	Add gimple argument.
	(array_bounds_checker::check_array_ref): Same.
	(array_bounds_checker::check_addr_expr): Same.
	(array_bounds_checker::check_array_bounds): Pass statement to
	check_array_bounds and check_addr_expr.
	* gimple-array-bounds.h (check_array_bounds): Add gimple argument.
	(check_addr_expr): Same.
	(get_value_range): Same.

2021-07-26  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (sdot, udot): Rename to..
	(sdot_prod, udot_prod): ... This.
	* config/aarch64/aarch64-simd.md (aarch64_<sur>dot<vsi2qi>): Merged
	into...
	(<sur>dot_prod<vsi2qi>): ... this.
	(aarch64_<sur>dot_lane<vsi2qi>, aarch64_<sur>dot_laneq<vsi2qi>):
	Change operands order.
	(<sur>sadv16qi): Use new operands order.
	* config/aarch64/arm_neon.h (vdot_u32, vdotq_u32, vdot_s32,
	vdotq_s32): Use new RTL ordering.

2021-07-26  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-builtins.c (TYPES_TERNOP_SUSS,
	aarch64_types_ternop_suss_qualifiers): New.
	* config/aarch64/aarch64-simd-builtins.def (usdot_prod): Use it.
	* config/aarch64/aarch64-simd.md (usdot_prod<vsi2qi>): Re-organize RTL.
	* config/aarch64/arm_neon.h (vusdot_s32, vusdotq_s32): Use it.

2021-07-23  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/101562
	* expmed.c (store_integral_bit_field): Only use movstrict_optab
	if the operand isn't paradoxical.

2021-07-23  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-array-bounds.h (class array_bounds_checker): Change
	ranges type to range_query.

2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vst1_s64_x2): Use
	__builtin_memcpy instead of constructing
	__builtin_aarch64_simd_oi one vector at a time.
	(vst1_u64_x2): Likewise.
	(vst1_f64_x2): Likewise.
	(vst1_s8_x2): Likewise.
	(vst1_p8_x2): Likewise.
	(vst1_s16_x2): Likewise.
	(vst1_p16_x2): Likewise.
	(vst1_s32_x2): Likewise.
	(vst1_u8_x2): Likewise.
	(vst1_u16_x2): Likewise.
	(vst1_u32_x2): Likewise.
	(vst1_f16_x2): Likewise.
	(vst1_f32_x2): Likewise.
	(vst1_p64_x2): Likewise.
	(vst1q_s8_x2): Likewise.
	(vst1q_p8_x2): Likewise.
	(vst1q_s16_x2): Likewise.
	(vst1q_p16_x2): Likewise.
	(vst1q_s32_x2): Likewise.
	(vst1q_s64_x2): Likewise.
	(vst1q_u8_x2): Likewise.
	(vst1q_u16_x2): Likewise.
	(vst1q_u32_x2): Likewise.
	(vst1q_u64_x2): Likewise.
	(vst1q_f16_x2): Likewise.
	(vst1q_f32_x2): Likewise.
	(vst1q_f64_x2): Likewise.
	(vst1q_p64_x2): Likewise.

2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vst1_s64_x3): Use
	__builtin_memcpy instead of constructing
	__builtin_aarch64_simd_ci one vector at a time.
	(vst1_u64_x3): Likewise.
	(vst1_f64_x3): Likewise.
	(vst1_s8_x3): Likewise.
	(vst1_p8_x3): Likewise.
	(vst1_s16_x3): Likewise.
	(vst1_p16_x3): Likewise.
	(vst1_s32_x3): Likewise.
	(vst1_u8_x3): Likewise.
	(vst1_u16_x3): Likewise.
	(vst1_u32_x3): Likewise.
	(vst1_f16_x3): Likewise.
	(vst1_f32_x3): Likewise.
	(vst1_p64_x3): Likewise.
	(vst1q_s8_x3): Likewise.
	(vst1q_p8_x3): Likewise.
	(vst1q_s16_x3): Likewise.
	(vst1q_p16_x3): Likewise.
	(vst1q_s32_x3): Likewise.
	(vst1q_s64_x3): Likewise.
	(vst1q_u8_x3): Likewise.
	(vst1q_u16_x3): Likewise.
	(vst1q_u32_x3): Likewise.
	(vst1q_u64_x3): Likewise.
	(vst1q_f16_x3): Likewise.
	(vst1q_f32_x3): Likewise.
	(vst1q_f64_x3): Likewise.
	(vst1q_p64_x3): Likewise.

2021-07-23  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101504
	* config/i386/i386.c (ix86_gen_scratch_sse_rtx): Don't return
	hard register when LRA is in progress.

2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vst1_s8_x4): Use
	__builtin_memcpy instead of using a union.
	(vst1q_s8_x4): Likewise.
	(vst1_s16_x4): Likewise.
	(vst1q_s16_x4): Likewise.
	(vst1_s32_x4): Likewise.
	(vst1q_s32_x4): Likewise.
	(vst1_u8_x4): Likewise.
	(vst1q_u8_x4): Likewise.
	(vst1_u16_x4): Likewise.
	(vst1q_u16_x4): Likewise.
	(vst1_u32_x4): Likewise.
	(vst1q_u32_x4): Likewise.
	(vst1_f16_x4): Likewise.
	(vst1q_f16_x4): Likewise.
	(vst1_f32_x4): Likewise.
	(vst1q_f32_x4): Likewise.
	(vst1_p8_x4): Likewise.
	(vst1q_p8_x4): Likewise.
	(vst1_p16_x4): Likewise.
	(vst1q_p16_x4): Likewise.
	(vst1_s64_x4): Likewise.
	(vst1_u64_x4): Likewise.
	(vst1_p64_x4): Likewise.
	(vst1q_s64_x4): Likewise.
	(vst1q_u64_x4): Likewise.
	(vst1q_p64_x4): Likewise.
	(vst1_f64_x4): Likewise.
	(vst1q_f64_x4): Likewise.

2021-07-23  Jonathan Wrightt  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vst2_s64): Use __builtin_memcpy
	instead of constructing __builtin_aarch64_simd_oi one vector
	at a time.
	(vst2_u64): Likewise.
	(vst2_f64): Likewise.
	(vst2_s8): Likewise.
	(vst2_p8): Likewise.
	(vst2_s16): Likewise.
	(vst2_p16): Likewise.
	(vst2_s32): Likewise.
	(vst2_u8): Likewise.
	(vst2_u16): Likewise.
	(vst2_u32): Likewise.
	(vst2_f16): Likewise.
	(vst2_f32): Likewise.
	(vst2_p64): Likewise.
	(vst2q_s8): Likewise.
	(vst2q_p8): Likewise.
	(vst2q_s16): Likewise.
	(vst2q_p16): Likewise.
	(vst2q_s32): Likewise.
	(vst2q_s64): Likewise.
	(vst2q_u8): Likewise.
	(vst2q_u16): Likewise.
	(vst2q_u32): Likewise.
	(vst2q_u64): Likewise.
	(vst2q_f16): Likewise.
	(vst2q_f32): Likewise.
	(vst2q_f64): Likewise.
	(vst2q_p64): Likewise.

2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vst3_s64): Use __builtin_memcpy
	instead of constructing __builtin_aarch64_simd_ci one vector
	at a time.
	(vst3_u64): Likewise.
	(vst3_f64): Likewise.
	(vst3_s8): Likewise.
	(vst3_p8): Likewise.
	(vst3_s16): Likewise.
	(vst3_p16): Likewise.
	(vst3_s32): Likewise.
	(vst3_u8): Likewise.
	(vst3_u16): Likewise.
	(vst3_u32): Likewise.
	(vst3_f16): Likewise.
	(vst3_f32): Likewise.
	(vst3_p64): Likewise.
	(vst3q_s8): Likewise.
	(vst3q_p8): Likewise.
	(vst3q_s16): Likewise.
	(vst3q_p16): Likewise.
	(vst3q_s32): Likewise.
	(vst3q_s64): Likewise.
	(vst3q_u8): Likewise.
	(vst3q_u16): Likewise.
	(vst3q_u32): Likewise.
	(vst3q_u64): Likewise.
	(vst3q_f16): Likewise.
	(vst3q_f32): Likewise.
	(vst3q_f64): Likewise.
	(vst3q_p64): Likewise.

2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vst4_s64): Use __builtin_memcpy
	instead of constructing __builtin_aarch64_simd_xi one vector
	at a time.
	(vst4_u64): Likewise.
	(vst4_f64): Likewise.
	(vst4_s8): Likewise.
	(vst4_p8): Likewise.
	(vst4_s16): Likewise.
	(vst4_p16): Likewise.
	(vst4_s32): Likewise.
	(vst4_u8): Likewise.
	(vst4_u16): Likewise.
	(vst4_u32): Likewise.
	(vst4_f16): Likewise.
	(vst4_f32): Likewise.
	(vst4_p64): Likewise.
	(vst4q_s8): Likewise.
	(vst4q_p8): Likewise.
	(vst4q_s16): Likewise.
	(vst4q_p16): Likewise.
	(vst4q_s32): Likewise.
	(vst4q_s64): Likewise.
	(vst4q_u8): Likewise.
	(vst4q_u16): Likewise.
	(vst4q_u32): Likewise.
	(vst4q_u64): Likewise.
	(vst4q_f16): Likewise.
	(vst4q_f32): Likewise.
	(vst4q_f64): Likewise.
	(vst4q_p64): Likewise.

2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vtbx4_s8): Use __builtin_memcpy
	instead of constructing __builtin_aarch64_simd_oi one vector
	at a time.
	(vtbx4_u8): Likewise.
	(vtbx4_p8): Likewise.

2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vtbl3_s8): Use __builtin_memcpy
	instead of constructing __builtin_aarch64_simd_oi one vector
	at a time.
	(vtbl3_u8): Likewise.
	(vtbl3_p8): Likewise.
	(vtbl4_s8): Likewise.
	(vtbl4_u8): Likewise.
	(vtbl4_p8): Likewise.

2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vqtbx2_s8): Use __builtin_memcpy
	instead of constructing __builtin_aarch64_simd_oi one vector
	at a time.
	(vqtbx2_u8): Likewise.
	(vqtbx2_p8): Likewise.
	(vqtbx2q_s8): Likewise.
	(vqtbx2q_u8): Likewise.
	(vqtbx2q_p8): Likewise.
	(vqtbx3_s8): Use __builtin_memcpy instead of constructing
	__builtin_aarch64_simd_ci one vector at a time.
	(vqtbx3_u8): Likewise.
	(vqtbx3_p8): Likewise.
	(vqtbx3q_s8): Likewise.
	(vqtbx3q_u8): Likewise.
	(vqtbx3q_p8): Likewise.
	(vqtbx4_s8): Use __builtin_memcpy instead of constructing
	__builtin_aarch64_simd_xi one vector at a time.
	(vqtbx4_u8): Likewise.
	(vqtbx4_p8): Likewise.
	(vqtbx4q_s8): Likewise.
	(vqtbx4q_u8): Likewise.
	(vqtbx4q_p8): Likewise.

2021-07-23  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_neon.h (vqtbl2_s8): Use __builtin_memcpy
	instead of constructing __builtin_aarch64_simd_oi one vector
	at a time.
	(vqtbl2_u8): Likewise.
	(vqtbl2_p8): Likewise.
	(vqtbl2q_s8): Likewise.
	(vqtbl2q_u8): Likewise.
	(vqtbl2q_p8): Likewise.
	(vqtbl3_s8): Use __builtin_memcpy instead of constructing
	__builtin_aarch64_simd_ci one vector at a time.
	(vqtbl3_u8): Likewise.
	(vqtbl3_p8): Likewise.
	(vqtbl3q_s8): Likewise.
	(vqtbl3q_u8): Likewise.
	(vqtbl3q_p8): Likewise.
	(vqtbl4_s8): Use __builtin_memcpy instead of constructing
	__builtin_aarch64_simd_xi one vector at a time.
	(vqtbl4_u8): Likewise.
	(vqtbl4_p8): Likewise.
	(vqtbl4q_s8): Likewise.
	(vqtbl4q_u8): Likewise.
	(vqtbl4q_p8): Likewise.

2021-07-23  Haochen Gui  <guihaoc@gcc.gnu.org>

	PR target/100952
	* config/rs6000/rs6000.md (cstore<mode>4): Fix wrong fall through.

2021-07-22  Andrew Pinski  <apinski@marvell.com>

	PR tree-optimization/10153
	* tree-tailcall.c (create_tailcall_accumulator):
	Don't call fold_convert as the type should be correct already.
	(tree_optimize_tail_calls_1): Use build_{one,zero}_cst instead
	of integer_{one,zero}_node for the call of create_tailcall_accumulator.

2021-07-22  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-cache.cc (non_null_ref::adjust_range): Replace
	varying_p check for null/non-null check.

2021-07-22  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/101511
	* value-relation.cc (relation_oracle::query_relation): Check if ssa1
	is in ssa2's equiv set, and don't trap if so.

2021-07-22  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/101497
	* gimple-range-fold.cc (fold_using_range::range_of_cond_expr): Check
	for undefined.

2021-07-22  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/101496
	* vr-values.c (simplify_using_ranges::fold_cond): Call range_of_stmt
	first, then vrp_visit_cond_Stmt.

2021-07-22  liuhongt  <hongtao.liu@intel.com>

	* config/i386/i386-expand.c
	(ix86_broadcast_from_integer_constant): Rename to ..
	(ix86_broadcast_from_constant): .. this, and extend it to
	handle float mode.
	(ix86_expand_vector_move): Extend to float mode.
	* config/i386/i386-features.c
	(replace_constant_pool_with_broadcast): Remove.
	(remove_partial_avx_dependency_gate): Ditto.
	(constant_pool_broadcast): Ditto.
	(class pass_constant_pool_broadcast): Ditto.
	(make_pass_constant_pool_broadcast): Ditto.
	(remove_partial_avx_dependency): Adjust gate.
	* config/i386/i386-passes.def: Remove pass_constant_pool_broadcast.
	* config/i386/i386-protos.h
	(make_pass_constant_pool_broadcast): Remove.

2021-07-22  liuhongt  <hongtao.liu@intel.com>

	* config/i386/constraints.md (Wb): New constraint.
	(Ww): Ditto.
	* config/i386/i386.md (*ashlhi3_1): Extend to avx512 mask
	shift.
	(*ashlqi3_1): Ditto.
	(*<insn><mode>3_1): Split to ..
	(*ashr<mode>3_1): this, ...
	(*lshr<mode>3_1): and this, also extend this pattern to avx512
	mask registers.
	(*<insn><mode>3_1): Split to ..
	(*ashr<mode>3_1): this, ...
	(*lshrqi3_1): and this, also extend this pattern to avx512
	mask registers.
	(*lshrhi3_1): And this, also extend this pattern to avx512
	mask registers.
	* config/i386/sse.md (k<code><mode>): New define_split after
	it to convert generic shift pattern to mask shift ones.

2021-07-21  Thomas Schwinge  <thomas@codesourcery.com>
	    Joseph Myers  <joseph@codesourcery.com>
	    Cesar Philippidis  <cesar@codesourcery.com>

	* tree-core.h (omp_clause_code): Add 'OMP_CLAUSE_NOHOST'.
	* tree.c (omp_clause_num_ops, omp_clause_code_name, walk_tree_1):
	Handle it.
	* tree-pretty-print.c (dump_omp_clause): Likewise.
	* omp-general.c (oacc_verify_routine_clauses): Likewise.
	* gimplify.c (gimplify_scan_omp_clauses)
	(gimplify_adjust_omp_clauses): Likewise.
	* tree-nested.c (convert_nonlocal_omp_clauses)
	(convert_local_omp_clauses): Likewise.
	* omp-low.c (scan_sharing_clauses): Likewise.
	* omp-offload.c (execute_oacc_device_lower): Update.

2021-07-21  Martin Sebor  <msebor@redhat.com>

	* tree-ssa-alias.c (walk_aliased_vdefs_1): Fix typos in a comment.

2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (write_init_bif_table):
	Implement.

2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (write_fntype): New
	callback function.
	(write_fntype_init): New stub function.
	(write_init_bif_table): Likewise.
	(write_init_ovld_table): New function.
	(write_init_file): Implement.

2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c
	(write_autogenerated_header): New function.
	(write_decls): Likewise.
	(write_extern_fntype): New callback function.
	(write_header_file): Implement.

2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (write_defines_file):
	Implement.

2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (complete_vector_type): New
	function.
	(complete_base_type): Likewise.
	(construct_fntype_id): Likewise.
	(parse_bif_entry): Call contruct_fntype_id.
	(parse_ovld_entry): Likewise.

2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (ovld_stanza): New struct.
	(MAXOVLDSTANZAS): New macro.
	(ovld_stanzas): New variable.
	(curr_ovld_stanza): Likewise.
	(MAXOVLDS): New macro.
	(ovlddata): New struct.
	(ovlds): New variable.
	(curr_ovld): Likewise.
	(max_ovld_args): Likewise.
	(parse_ovld_entry): New function.
	(parse_ovld_stanza): Likewise.
	(parse_ovld): Implement.

2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (parse_bif_attrs):
	Implement.

2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (parse_args): New function.
	(parse_prototype): Implement.

2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (bif_stanza): New enum.
	(curr_bif_stanza): New variable.
	(stanza_entry): New struct.
	(stanza_map): New initialized variable.
	(enable_string): Likewise.
	(fnkinds): New enum.
	(typelist): New struct.
	(attrinfo): Likewise.
	(MAXRESTROPNDS): New macro.
	(prototype): New struct.
	(MAXBIFS): New macro.
	(bifdata): New struct.
	(bifs): New variable.
	(curr_bif): Likewise.
	(bif_order): Likewise.
	(bif_index): Likewise.
	(fatal): New function.
	(stanza_name_to_stanza): Likewise.
	(parse_bif_attrs): New stub function.
	(parse_prototype): Likewise.
	(parse_bif_entry): New function.
	(parse_bif_stanza): Likewise.
	(parse_bif): Implement.
	(set_bif_order): New function.
	(create_bif_order): Implement.

2021-07-21  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (rbtree.h): New #include.
	(num_bifs): New variable.
	(num_ovld_stanzas): Likewise.
	(num_ovlds): Likewise.
	(parse_codes): New enum.
	(bif_rbt): New variable.
	(ovld_rbt): Likewise.
	(fntype_rbt): Likewise.
	(bifo_rbt): Likewise.
	(parse_bif): New stub function.
	(create_bif_order): Likewise.
	(parse_ovld): Likewise.
	(write_header_file): Likewise.
	(write_init_file): Likewise.
	(write_defines_file): Likewise.
	(delete_output_files): New function.
	(main): Likewise.

2021-07-21  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101549
	* config/i386/i386-builtin.def: Remove OPTION_MASK_ISA_SSE4_2
	from CRC32 _builtin functions.

2021-07-21  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* coverage.c (build_gcov_info_var_registration): Mark the object placed
	in the linker set as referenced so that it does not get optimized away.

2021-07-21  Kito Cheng  <kito.cheng@sifive.com>

	Revert:
	2021-07-20  Kito Cheng  <kito.cheng@sifive.com>

	* config.gcc (riscv*-*-*): Detect which python is available.

2021-07-21  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/101535
	* gimplify.c (omp_check_private): Properly skip ORT_TARGET_DATA
	contexts in which decl isn't privatized and for ORT_TARGET return
	false if decl is mapped.

2021-07-21  Richard Sandiford  <richard.sandiford@arm.com>

	* gimple-loop-jam.c: Include tree-ssa-sccvn.h.
	(tree_loop_unroll_and_jam): Run value-numbering on a loop that
	has been successfully unrolled.

2021-07-21  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-ssa-loop-manip.c (determine_exit_conditions): Return a null
	exit condition if no tail loop is needed, and if the original exit
	condition should therefore be kept as-is.
	(tree_transform_and_unroll_loop): Handle that case here too.

2021-07-21  Kewen Lin  <linkw@linux.ibm.com>

	* tree-data-ref.c (free_dependence_relations): Adjust to pass vec
	by reference.
	(free_data_refs): Likewise.
	* tree-data-ref.h (free_dependence_relations): Likewise.
	(free_data_refs): Likewise.
	* tree-predcom.c (struct chain): Use auto_vec instead of vec for
	members.
	(struct component): Likewise.
	(pcom_worker::pcom_worker): Adjust for auto_vec and renaming changes.
	(pcom_worker::~pcom_worker): Likewise.
	(pcom_worker::release_chain): Adjust as auto_vec changes.
	(pcom_worker::loop): Rename to ...
	(pcom_worker::m_loop): ... this.
	(pcom_worker::datarefs): Rename to ...
	(pcom_worker::m_datarefs): ... this.  Use auto_vec instead of vec.
	(pcom_worker::dependences): Rename to ...
	(pcom_worker::m_dependences): ... this.  Use auto_vec instead of vec.
	(pcom_worker::chains): Rename to ...
	(pcom_worker::m_chains): ... this.  Use auto_vec instead of vec.
	(pcom_worker::looparound_phis): Rename to ...
	(pcom_worker::m_looparound_phis): ... this.  Use auto_vec instead of
	vec.
	(pcom_worker::cache): Rename to ...
	(pcom_worker::m_cache): ... this.  Use auto_vec instead of vec.
	(pcom_worker::release_chain): Adjust for auto_vec changes.
	(pcom_worker::release_chains): Adjust for auto_vec and renaming
	changes.
	(release_component): Remove.
	(release_components): Adjust for release_component removal.
	(component_of): Adjust to use vec.
	(merge_comps): Likewise.
	(pcom_worker::aff_combination_dr_offset): Adjust for renaming changes.
	(pcom_worker::determine_offset): Likewise.
	(class comp_ptrs): Remove.
	(pcom_worker::split_data_refs_to_components): Adjust for renaming
	changes, for comp_ptrs removal with auto_vec.
	(pcom_worker::suitable_component_p): Adjust for renaming changes.
	(pcom_worker::filter_suitable_components): Adjust for release_component
	removal.
	(pcom_worker::valid_initializer_p): Adjust for renaming changes.
	(pcom_worker::find_looparound_phi): Likewise.
	(pcom_worker::add_looparound_copies): Likewise.
	(pcom_worker::determine_roots_comp): Likewise.
	(pcom_worker::single_nonlooparound_use): Likewise.
	(pcom_worker::execute_pred_commoning_chain): Likewise.
	(pcom_worker::execute_pred_commoning): Likewise.
	(pcom_worker::try_combine_chains): Likewise.
	(pcom_worker::prepare_initializers_chain): Likewise.
	(pcom_worker::prepare_initializers): Likewise.
	(pcom_worker::prepare_finalizers_chain): Likewise.
	(pcom_worker::prepare_finalizers): Likewise.
	(pcom_worker::tree_predictive_commoning_loop): Likewise.

2021-07-20  Martin Sebor  <msebor@redhat.com>

	PR middle-end/101397
	* builtins.c (gimple_call_return_array): Add argument.  Correct
	offsets for memchr, mempcpy, stpcpy, and stpncpy.
	(compute_objsize_r): Adjust offset computation for argument returning
	built-ins.

2021-07-20  Martin Sebor  <msebor@redhat.com>

	PR middle-end/101300
	* tree-ssa-uninit.c (check_defs): Handle UBSAN built-ins.

2021-07-20  Jeff Law  <jlaw@localhost.localdomain>

	* function.c (assign_parm_setup_block): Use adjust_address instead
	of change_address to preserve MEM_EXPR and friends.

2021-07-20  Martin Sebor  <msebor@redhat.com>

	* cfgloop.h (single_likely_exit): Adjust by-value argument to
	by-const-reference.
	* cfgloopanal.c (single_likely_exit): Same.
	* cgraph.h (struct cgraph_node): Same.
	* cgraphclones.c (cgraph_node::create_virtual_clone): Same.
	* genautomata.c (merge_states): Same.
	* genextract.c (VEC_char_to_string): Same.
	* genmatch.c (dt_node::gen_kids_1): Same.
	(walk_captures): Adjust by-value argument to by-reference.
	* gimple-ssa-store-merging.c (check_no_overlap): Adjust by-value argument
	to by-const-reference.
	* gimple.c (gimple_build_call_vec): Same.
	(gimple_build_call_internal_vec): Same.
	(gimple_build_switch): Same.
	(sort_case_labels): Same.
	(preprocess_case_label_vec_for_gimple): Adjust by-value argument to
	by-reference.
	* gimple.h (gimple_build_call_vec): Adjust by-value argument to
	by-const-reference.
	(gimple_build_call_internal_vec): Same.
	(gimple_build_switch): Same.
	(sort_case_labels): Same.
	(preprocess_case_label_vec_for_gimple): Adjust by-value argument to
	by-reference.
	* haifa-sched.c (calc_priorities): Adjust by-value argument to
	by-const-reference.
	(sched_init_luids): Same.
	(haifa_init_h_i_d): Same.
	* ipa-cp.c (ipa_get_indirect_edge_target_1): Same.
	(adjust_callers_for_value_intersection): Adjust by-value argument to
	by-reference.
	(find_more_scalar_values_for_callers_subset): Adjust by-value argument to
	by-const-reference.
	(find_more_contexts_for_caller_subset): Same.
	(find_aggregate_values_for_callers_subset): Same.
	(copy_useful_known_contexts): Same.
	* ipa-fnsummary.c (remap_edge_summaries): Same.
	(remap_freqcounting_predicate): Same.
	* ipa-inline.c (add_new_edges_to_heap): Adjust by-value argument to
	by-reference.
	* ipa-predicate.c (predicate::remap_after_inlining): Adjust by-value argument
	to by-const-reference.
	* ipa-predicate.h (predicate::remap_after_inlining): Same.
	* ipa-prop.c (ipa_find_agg_cst_for_param): Same.
	* ipa-prop.h (ipa_find_agg_cst_for_param): Same.
	* ira-build.c (ira_loop_tree_body_rev_postorder): Same.
	* read-rtl.c (add_overload_instance): Same.
	* rtl.h (native_decode_rtx): Same.
	(native_decode_vector_rtx): Same.
	* sched-int.h (sched_init_luids): Same.
	(haifa_init_h_i_d): Same.
	* simplify-rtx.c (native_decode_vector_rtx): Same.
	(native_decode_rtx): Same.
	* tree-call-cdce.c (gen_shrink_wrap_conditions): Same.
	(shrink_wrap_one_built_in_call_with_conds): Same.
	(shrink_wrap_conditional_dead_built_in_calls): Same.
	* tree-data-ref.c (create_runtime_alias_checks): Same.
	(compute_all_dependences): Same.
	* tree-data-ref.h (compute_all_dependences): Same.
	(create_runtime_alias_checks): Same.
	(index_in_loop_nest): Same.
	* tree-if-conv.c (mask_exists): Same.
	* tree-loop-distribution.c (class loop_distribution): Same.
	(loop_distribution::create_rdg_vertices): Same.
	(dump_rdg_partitions): Same.
	(debug_rdg_partitions): Same.
	(partition_contains_all_rw): Same.
	(loop_distribution::distribute_loop): Same.
	* tree-parloops.c (oacc_entry_exit_ok_1): Same.
	(oacc_entry_exit_single_gang): Same.
	* tree-ssa-loop-im.c (hoist_memory_references): Same.
	(loop_suitable_for_sm): Same.
	* tree-ssa-loop-niter.c (bound_index): Same.
	* tree-ssa-reassoc.c (update_ops): Same.
	(swap_ops_for_binary_stmt): Same.
	(rewrite_expr_tree): Same.
	(rewrite_expr_tree_parallel): Same.
	* tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Same.
	* tree-ssa-sccvn.h (ao_ref_init_from_vn_reference): Same.
	* tree-ssa-structalias.c (process_all_all_constraints): Same.
	(make_constraints_to): Same.
	(handle_lhs_call): Same.
	(find_func_aliases_for_builtin_call): Same.
	(sort_fieldstack): Same.
	(check_for_overlaps): Same.
	* tree-vect-loop-manip.c (vect_create_cond_for_align_checks): Same.
	(vect_create_cond_for_unequal_addrs): Same.
	(vect_create_cond_for_lower_bounds): Same.
	(vect_create_cond_for_alias_checks): Same.
	* tree-vect-slp-patterns.c (vect_validate_multiplication): Same.
	* tree-vect-slp.c (vect_analyze_slp_instance): Same.
	(vect_make_slp_decision): Same.
	(vect_slp_bbs): Same.
	(duplicate_and_interleave): Same.
	(vect_transform_slp_perm_load): Same.
	(vect_schedule_slp): Same.
	* tree-vectorizer.h (vect_transform_slp_perm_load): Same.
	(vect_schedule_slp): Same.
	(duplicate_and_interleave): Same.
	* tree.c (build_vector_from_ctor): Same.
	(build_vector): Same.
	(check_vector_cst): Same.
	(check_vector_cst_duplicate): Same.
	(check_vector_cst_fill): Same.
	(check_vector_cst_stepped): Same.
	* tree.h (build_vector_from_ctor): Same.

2021-07-20  Jakub Jelinek  <jakub@redhat.com>

	PR target/101384
	* config/rs6000/rs6000-protos.h (easy_altivec_constant): Change return
	type from bool to int.
	* config/rs6000/rs6000.c (vspltis_constant): Fix up handling the
	EASY_VECTOR_MSB case if either step or copies is not 1.
	(vspltis_shifted): Fix comment typo.
	(easy_altivec_constant): Change return type from bool to int, instead
	of returning true return byte size of the element mode that should be
	used to synthetize the constant.
	* config/rs6000/predicates.md (easy_vector_constant_msb): Require
	that vspltis_shifted is 0, handle the case where easy_altivec_constant
	assumes using different vector mode from CONST_VECTOR's mode.
	* config/rs6000/altivec.md (easy_vector_constant_msb splitter): Use
	easy_altivec_constant to determine mode in which -1 >> -1 should be
	performed, use rs6000_expand_vector_init instead of gen_vec_initv4sisi.

2021-07-20  Richard Biener  <rguenther@suse.de>

	PR debug/101473
	* dwarf2out.h (dwarf_file_data): Add key member.
	* dwarf2out.c (dwarf_file_hasher::equal): Compare key.
	(dwarf_file_hasher::hash): Hash key.
	(lookup_filename): Remap the filename and store it in the
	filename member of dwarf_file_data when creating a new
	dwarf_file_data.
	(file_name_acquire): Do not remap the filename again.
	(maybe_emit_file): Likewise.

2021-07-20  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Use two variant
	generators for all TBL/TBX intrinsics and rename to
	consistent forms: qtbl[1234] or qtbx[1234].
	* config/aarch64/aarch64-simd.md (aarch64_tbl1<mode>):
	Rename to...
	(aarch64_qtbl1<mode>): This.
	(aarch64_tbx1<mode>): Rename to...
	(aarch64_qtbx1<mode>): This.
	(aarch64_tbl2v16qi): Delete.
	(aarch64_tbl3<mode>): Rename to...
	(aarch64_qtbl2<mode>): This.
	(aarch64_tbx4<mode>): Rename to...
	(aarch64_qtbx2<mode>): This.
	* config/aarch64/aarch64.c (aarch64_expand_vec_perm_1): Use
	renamed qtbl1 and qtbl2 RTL patterns.
	* config/aarch64/arm_neon.h (vqtbl1_p8): Use renamed qtbl1
	RTL pattern.
	(vqtbl1_s8): Likewise.
	(vqtbl1_u8): Likewise.
	(vqtbl1q_p8): Likewise.
	(vqtbl1q_s8): Likewise.
	(vqtbl1q_u8): Likewise.
	(vqtbx1_s8): Use renamed qtbx1 RTL pattern.
	(vqtbx1_u8): Likewise.
	(vqtbx1_p8): Likewise.
	(vqtbx1q_s8): Likewise.
	(vqtbx1q_u8): Likewise.
	(vqtbx1q_p8): Likewise.
	(vtbl1_s8): Use renamed qtbl1 RTL pattern.
	(vtbl1_u8): Likewise.
	(vtbl1_p8): Likewise.
	(vtbl2_s8): Likewise
	(vtbl2_u8): Likewise.
	(vtbl2_p8): Likewise.
	(vtbl3_s8): Use renamed qtbl2 RTL pattern.
	(vtbl3_u8): Likewise.
	(vtbl3_p8): Likewise.
	(vtbl4_s8): Likewise.
	(vtbl4_u8): Likewise.
	(vtbl4_p8): Likewise.
	(vtbx2_s8): Use renamed qtbx2 RTL pattern.
	(vtbx2_u8): Likewise.
	(vtbx2_p8): Likewise.
	(vqtbl2_s8): Use renamed qtbl2 RTL pattern.
	(vqtbl2_u8): Likewise.
	(vqtbl2_p8): Likewise.
	(vqtbl2q_s8): Likewise.
	(vqtbl2q_u8): Likewise.
	(vqtbl2q_p8): Likewise.
	(vqtbx2_s8): Use renamed qtbx2 RTL pattern.
	(vqtbx2_u8): Likewise.
	(vqtbx2_p8): Likewise.
	(vqtbx2q_s8): Likewise.
	(vqtbx2q_u8): Likewise.
	(vqtbx2q_p8): Likewise.
	(vtbx4_s8): Likewise.
	(vtbx4_u8): Likewise.
	(vtbx4_p8): Likewise.

2021-07-20  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100182
	* config/i386/sync.md (define_peephole2 atomic_storedi_fpu):
	Remove.
	(define_peephole2 atomic_loaddi_fpu): Ditto.

2021-07-20  Kito Cheng  <kito.cheng@sifive.com>

	* config.gcc (riscv*-*-*): Detect which python is available.

2021-07-20  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/vsx.md (mulhs_<mode>): Rename to...
	(smul<mode>3_highpart): ... this.
	(mulhu_<mode>): Rename to...
	(umul<mode>3_highpart): ... this.
	* config/rs6000/rs6000-builtin.def (MULHS_V2DI, MULHS_V4SI,
	MULHU_V2DI, MULHU_V4SI): Adjust.

2021-07-20  Kewen Lin  <linkw@linux.ibm.com>

	PR tree-optimization/100696
	* internal-fn.c (first_commutative_argument): Add info for IFN_MULH.
	* internal-fn.def (IFN_MULH): New internal function.
	* tree-vect-patterns.c (vect_recog_mulhs_pattern): Add support to
	recog normal multiply highpart as IFN_MULH.
	* config/i386/i386.c (ix86_add_stmt_cost): Adjust for combined
	function CFN_MULH.

2021-07-19  Indu Bhagat  <indu.bhagat@oracle.com>

	* config/elfos.h (CTF_DEBUGGING_INFO): New definition.
	(BTF_DEBUGGING_INFO): Likewise.
	* doc/tm.texi.in: Document the new macros.
	* doc/tm.texi: Regenerated.
	* toplev.c: Guard initialization of debug hooks.

2021-07-19  Indu Bhagat  <indu.bhagat@oracle.com>

	* flags.h (ctf_debuginfo_p): New function declaration.
	* opts.c (ctf_debuginfo_p): New function definition.

2021-07-19  Andrew Stubbs  <ams@codesourcery.com>

	PR target/100208
	* config/gcn/gcn-hsa.h (DRIVER_SELF_SPECS): New.
	(ASM_SPEC): Set -mattr for xnack and sram-ecc.
	* config/gcn/gcn-opts.h (enum sram_ecc_type): New.
	* config/gcn/gcn-valu.md: Add a warning comment.
	* config/gcn/gcn.c (gcn_option_override): Add "sorry" for -mxnack.
	(output_file_start): Add xnack and sram-ecc state to ".amdgcn_target".
	* config/gcn/gcn.md: Add a warning comment.
	* config/gcn/gcn.opt: Add -mxnack and -msram-ecc.
	* config/gcn/mkoffload.c (EF_AMDGPU_MACH_AMDGCN_GFX908): Remove
	SRAM-ECC flag.
	(EF_AMDGPU_XNACK): New.
	(EF_AMDGPU_SRAM_ECC): New.
	(elf_flags): New.
	(copy_early_debug_info): Use elf_flags.
	(main): Handle -mxnack and -msram-ecc options.
	* doc/invoke.texi: Document -mxnack and -msram-ecc.

2021-07-19  Andrew Pinski  <apinski@marvell.com>

	PR target/101205
	* config/aarch64/aarch64.md (csneg3_uxtw_insn): Rename to ...
	(*cs<neg_not_cs>3_uxtw_insn4): and extend to NEG_NOT.

2021-07-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101505
	* tree-vect-patterns.c (vect_determine_precisions): Walk
	PHIs also for loop vectorization.

2021-07-19  Richard Biener  <rguenther@suse.de>

	* gimple.h (gimple_expr_type): Remove.
	* doc/gimple.texi: Remove gimple_expr_type documentation.

2021-07-19  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.c (vn_reference_eq): Handle NULL vr->type.
	(ao_ref_init_from_vn_reference): Likewise.
	(fully_constant_reference): Likewise.
	(vn_reference_lookup_call): Do not set vr->type to random
	values.
	* tree-ssa-pre.c (compute_avail): Do not try to PRE calls
	without a value.
	* tree-vect-generic.c (expand_vector_piecewise): Pass in
	whether we expanded parallel.
	(expand_vector_parallel): Adjust.
	(expand_vector_addition): Likewise.
	(expand_vector_comparison): Likewise.
	(expand_vector_operation): Likewise.
	(expand_vector_scalar_condition): Likewise.
	(expand_vector_conversion): Likewise.

2021-07-19  Richard Biener  <rguenther@suse.de>

	* tree-vrp.c (register_edge_assert_for_2): Use the
	type from the LHS.
	(vrp_folder::fold_predicate_in): Likewise.
	* vr-values.c (gimple_assign_nonzero_p): Likewise.
	(vr_values::extract_range_from_comparison): Likewise.
	(vr_values::extract_range_from_ubsan_builtin): Use the
	type of the first operand.
	(vr_values::extract_range_basic): Push down type
	computation, use the appropriate LHS.
	(vr_values::extract_range_from_assignment): Use the
	type of the LHS.

2021-07-18  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101492
	* common/config/i386/i386-common.c (ix86_handle_option): For
	-mgeneral-regs-only, enable the GPR only instructions which are
	enabled implicitly by SSE ISAs unless they have been disabled
	explicitly.

2021-07-18  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101495
	* config/i386/i386.c (ix86_check_avx_upper_stores): Moved before
	ix86_avx_u128_mode_needed.
	(ix86_avx_u128_mode_needed): Return AVX_U128_DIRTY if callee
	returns AVX register.

2021-07-17  Jan Hubicka  <hubicka@ucw.cz>

	* tree-ssa-structalias.c (handle_rhs_call): Support EAF_NOT_RETURNED.
	(handle_const_call): Liekise
	(handle_pure_call): Liekise

2021-07-17  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/96542
	* range-op.cc (range_operator::wi_fold_in_parts): New.
	(range_operator::fold_range): Call wi_fold_in_parts.
	(operator_lshift::wi_fold): Fix broken lshift by [0,0].
	* range-op.h (wi_fold_in_parts): Add prototype.

2021-07-16  David Malcolm  <dmalcolm@redhat.com>

	* doc/analyzer.texi: Add __analyzer_dump_state.

2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rbtree.c: New file.
	* config/rs6000/rbtree.h: New file.

2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (restriction): New enum.
	(typeinfo): Add restr field.
	(match_bracketed_pair): New function.
	(match_const_restriction): Implement.

2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (match_basetype): Implement.

2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (void_status): New enum.
	(basetype): Likewise.
	(typeinfo): Likewise.
	(handle_pointer): New function.
	(match_basetype): New stub function.
	(match_const_restriction): Likewise.
	(match_type): New function.

2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (consume_whitespace): New
	function.
	(advance_line): Likewise.
	(safe_inc_pos): Likewise.
	(match_identifier): Likewise.
	(match_integer): Likewise.
	(match_to_right_bracket): Likewise.

2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c (bif_file): New variable.
	(ovld_file): Likewise.
	(header_file): Likewise.
	(init_file): Likewise.
	(defines_file): Likewise.
	(pgm_path): Likewise.
	(bif_path): Likewise.
	(ovld_path): Likewise.
	(header_path): Likewise.
	(init_path): Likewise.
	(defines_path): Likewise.
	(LINELEN): New macro.
	(linebuf): New variable.
	(line): Likewise.
	(pos): Likewise.
	(diag): Likewise.
	(bif_diag): New function.
	(ovld_diag): Likewise.

2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-builtin-new.def: New.
	* config/rs6000/rs6000-overload.def: New.

2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-gen-builtins.c: New.

2021-07-16  Bill Schmidt  <wschmidt@linux.ibm.com>

	* Makefile.in (EXTRA_GTYPE_DEPS): New variable.
	(s-gtype): Depend on EXTRA_GTYPE_DEPS.
	* gengtype-state.c (state_writer::write_state_file_list): Add a
	parameter to the fileslist expression for the number of build
	headers to scan.
	(read_state_files_list): Detect build headers and strip the
	initial "./" or ".\" from their names.
	* gengtype.c (build_headers): New global variable.
	(num_build_headers): Likewise.
	(open_base_files): Emit #include for each build header.
	(main): Detect and count build headers.
	* gengtype.h (build_headers): New extern variable.
	(num_build_headers): Likewise.

2021-07-16  Richard Biener   <rguenther@suse.de>

	* gimple-ssa-store-merging.c (verify_symbolic_number_p): Use
	the type of the LHS.
	(find_bswap_or_nop_1): Likewise.
	(find_bswap_or_nop): Likewise.
	* tree-vectorizer.h (vect_get_smallest_scalar_type): Adjust
	prototype.
	* tree-vect-data-refs.c (vect_get_smallest_scalar_type):
	Remove unused parameters, pass in the scalar type.  Fix
	internal store function handling.
	* tree-vect-stmts.c (vect_analyze_stmt): Remove assert.
	(vect_get_vector_types_for_stmt): Move down check for
	existing vector stmt after we've determined a scalar type.
	Pass down the used scalar type to vect_get_smallest_scalar_type.
	* tree-vect-generic.c (expand_vector_condition): Use
	the type of the LHS.
	(expand_vector_scalar_condition): Likewise.
	(expand_vector_operations_1): Likewise.
	* tree-vect-patterns.c (vect_widened_op_tree): Likewise.
	(vect_recog_dot_prod_pattern): Likewise.
	(vect_recog_sad_pattern): Likewise.
	(vect_recog_widen_op_pattern): Likewise.
	(vect_recog_widen_sum_pattern): Likewise.
	(vect_recog_mixed_size_cond_pattern): Likewise.

2021-07-16  Jan Hubicka  <hubicka@ucw.cz>

	* ipa-modref.c (struct escape_entry): Use eaf_fleags_t.
	(dump_eaf_flags): Dump EAF_NOT_RETURNED
	(eaf_flags_useful_p): Use eaf_fleags_t; handle const functions
	and EAF_NOT_RETURNED.
	(modref_summary::useful_p): Likewise.
	(modref_summary_lto::useful_p): Likewise.
	(struct) modref_summary_lto: Use eaf_fleags_t.
	(deref_flags): Handle EAF_NOT_RETURNED.
	(struct escape_point): Use min_flags.
	(modref_lattice::init): Add EAF_NOT_RETURNED.
	(merge_call_lhs_flags): Ignore EAF_NOT_RETURNED functions
	(analyze_ssa_name_flags): Clear EAF_NOT_RETURNED on return;
	handle call flags.
	(analyze_parms): Also analyze const functions; update conition on
	flags usefulness.
	(modref_write): Update streaming.
	(read_section): Update streaming.
	(remap_arg_flags): Use eaf_flags_t.
	(modref_merge_call_site_flags): Hanlde EAF_NOT_RETURNED.
	* ipa-modref.h: (eaf_flags_t): New typedef.
	(struct modref_summary): Use eaf_flags_t.
	* tree-core.h (EAF_NOT_RETURNED): New constant.

2021-07-16  Richard Biener  <rguenther@suse.de>

	* gimple-fold.c (gimple_fold_stmt_to_constant_1): Use
	the type of the LHS.
	(gimple_assign_nonnegative_warnv_p): Likewise.
	(gimple_call_nonnegative_warnv_p): Likewise.  Return false
	if the call has no LHS.
	* gimple.c (gimple_could_trap_p_1): Use the type of the LHS.
	* tree-eh.c (stmt_could_throw_1_p): Likewise.
	* tree-inline.c (insert_init_stmt): Likewise.
	* tree-ssa-loop-niter.c (get_val_for): Likewise.
	* tree-outof-ssa.c (ssa_is_replaceable_p): Use the type of
	the def.
	* tree-ssa-sccvn.c (init_vn_nary_op_from_stmt): Take a
	gassign *.  Use the type of the lhs.
	(vn_nary_op_lookup_stmt): Adjust.
	(vn_nary_op_insert_stmt): Likewise.

2021-07-16  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/predicates.md (bras_sym_operand): Accept all
	functions in 64-bit mode, use UNSPEC_PLT31.
	(larl_operand): Use UNSPEC_PLT31.
	* config/s390/s390.c (s390_loadrelative_operand_p): Likewise.
	(legitimize_pic_address): Likewise.
	(s390_emit_tls_call_insn): Mark __tls_get_offset as function,
	use UNSPEC_PLT31.
	(s390_delegitimize_address): Use UNSPEC_PLT31.
	(s390_output_addr_const_extra): Likewise.
	(print_operand): Add @PLT to TLS calls, handle %K.
	(s390_function_profiler): Mark __fentry__/_mcount as function,
	use %K, use UNSPEC_PLT31.
	(s390_output_mi_thunk): Use only UNSPEC_GOT, use %K.
	(s390_emit_call): Use UNSPEC_PLT31.
	(s390_emit_tpf_eh_return): Mark __tpf_eh_return as function.
	* config/s390/s390.md (UNSPEC_PLT31): Rename from UNSPEC_PLT.
	(*movdi_64): Use %K.
	(reload_base_64): Likewise.
	(*sibcall_brc): Likewise.
	(*sibcall_brcl): Likewise.
	(*sibcall_value_brc): Likewise.
	(*sibcall_value_brcl): Likewise.
	(*bras): Likewise.
	(*brasl): Likewise.
	(*bras_r): Likewise.
	(*brasl_r): Likewise.
	(*bras_tls): Likewise.
	(*brasl_tls): Likewise.
	(main_base_64): Likewise.
	(reload_base_64): Likewise.
	(@split_stack_call<mode>): Likewise.

2021-07-16  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101467
	* tree-vect-stmts.c (vect_gen_while): Properly guard
	make_temp_ssa_name usage.

2021-07-16  Cooper Qu  <cooper.qu@linux.alibaba.com>

	* config.gcc: Don't use forked print-sysroot-suffix.sh and
	t-sysroot-suffix for C-SKY.
	* config/csky/print-sysroot-suffix.sh: Delete.
	* config/csky/t-csky-linux: Delete.
	* config/csky/t-sysroot-suffix: Define MULTILIB_DIRNAMES
	instead of CSKY_MULTILIB_DIRNAMES.

2021-07-16  Richard Biener  <rguenther@suse.de>

	* tree-vect-loop.c (vect_transform_cycle_phi): Correct sign
	conversion issues with the partial reduction of the reused
	vector accumulator.

2021-07-16  Richard Biener  <rguenther@suse.de>

	* config/i386/i386-options.c (ix86_option_override_internal): Set
	param_vect_partial_vector_usage to zero if not set.

2021-07-15  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/101346
	* config/i386/i386.h (VALID_SSE_REG_MODE): Add TDmode.
	(VALID_INT_MODE_P): Add SDmode and DDmode.
	Add TDmode for TARGET_64BIT.
	(VALID_DFP_MODE_P): Remove.
	* config/i386/i386.c (ix86_hard_regno_mode_ok):
	Do not use VALID_DFP_MODE_P.

2021-07-15  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-fold.cc (adjust_pointer_diff_expr): Use
	gimple_range_type.
	(fold_using_range::fold_stmt): Ditto.
	(fold_using_range::range_of_range_op): Ditto.
	(fold_using_range::range_of_phi): Ditto.
	(fold_using_range::range_of_call): Ditto.
	(fold_using_range::range_of_builtin_ubsan_call): Ditto.
	(fold_using_range::range_of_builtin_call): Ditto.
	(fold_using_range::range_of_cond_expr): Ditto.
	* gimple-range-fold.h (gimple_range_type): New.

2021-07-15  Martin Sebor  <msebor@redhat.com>

	PR middle-end/97027
	* tree-ssa-strlen.c (handle_assign): New function.
	(maybe_warn_overflow): Add argument.
	(nonzero_bytes_for_type): New function.
	(count_nonzero_bytes): Handle more tree types.  Call
	nonzero_bytes_for_tye.
	(count_nonzero_bytes): Handle types.
	(handle_store): Handle stores from function calls.
	(strlen_check_and_optimize_call): Move code to handle_assign.  Call
	it for assignments from function calls.

2021-07-15  David Malcolm  <dmalcolm@redhat.com>

	PR analyzer/95006
	PR analyzer/94713
	PR analyzer/94714
	* doc/invoke.texi: Add -Wanalyzer-use-of-uninitialized-value.

2021-07-15  David Malcolm  <dmalcolm@redhat.com>

	* doc/invoke.texi (-fdump-analyzer-exploded-paths): New.

2021-07-15  Martin Sebor  <msebor@redhat.com>

	PR c/101289
	PR c/97548
	* fold-const.c (operand_compare::operand_equal_p): Handle OEP_DECL_NAME.
	(operand_compare::verify_hash_value): Same.
	* tree-core.h (OEP_DECL_NAME): New.

2021-07-15  Martin Jambor  <mjambor@suse.cz>

	* profile-count.h (profile_count::value): Change the return type to
	uint64_t.
	* gimple-pretty-print.c (dump_gimple_bb_header): Adjust print
	statement.
	* tree-cfg.c (dump_function_to_file): Likewise.

2021-07-15  Bill Schmidt  <wschmidt@linux.ibm.com>

	PR target/101129
	* config/rs6000/rs6000-p8swap.c (has_part_mult): New.
	(rs6000_analyze_swaps): Insns containing a subreg of a mult are
	not swappable.

2021-07-15  Richard Biener  <rguenther@suse.de>

	* tree-vectorizer.h (vect_gen_while): Match up with
	vect_gen_while_not.
	* tree-vect-stmts.c (vect_gen_while): Adjust API to that
	of vect_gen_while_not.
	(vect_gen_while_not): Adjust.
	* tree-vect-loop-manip.c (vect_set_loop_controls_directly): Likewise.

2021-07-15  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range-cache.cc (non_null_ref::adjust_range): New.
	(ranger_cache::range_of_def): Call adjust_range.
	(ranger_cache::entry_range): Same.
	* gimple-range-cache.h (non_null_ref::adjust_range): New.
	* gimple-range.cc (gimple_ranger::range_of_expr): Call
	adjust_range.
	(gimple_ranger::range_on_entry): Same.

2021-07-15  Tamar Christina  <tamar.christina@arm.com>

	Revert:
	2021-07-14  Tamar Christina  <tamar.christina@arm.com>

	* config/arm/neon.md (<sup>dot_prod<vsi2qi>): Drop statements.

2021-07-15  Tamar Christina  <tamar.christina@arm.com>

	Revert:
	2021-07-14  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (udot, sdot): Rename to...
	(sdot_prod, udot_prod): ...These.
	* config/aarch64/aarch64-simd.md (<sur>dot_prod<vsi2qi>): Remove.
	(aarch64_<sur>dot<vsi2qi>): Rename to...
	(<sur>dot_prod<vsi2qi>): ...This.
	* config/aarch64/arm_neon.h (vdot_u32, vdotq_u32, vdot_s32, vdotq_s32):
	Update builtins.

2021-07-15  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/101437
	* gimplify.c (gimplify_expr): Throw away volatile reads from empty
	types even if they have non-BLKmode TYPE_MODE.

2021-07-15  Richard Biener  <rguenther@suse.de>

	PR driver/101383
	* gcc.c (process_command): Process -gtoggle like process_options
	would after parsing options.

2021-07-15  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* cfgexpand.c (expand_asm_loc): Adjust.
	(expand_asm_stmt): Likewise.
	* config/arm/aarch-common-protos.h (arm_md_asm_adjust): Likewise.
	* config/arm/aarch-common.c (arm_md_asm_adjust): Likewise.
	* config/arm/arm.c (thumb1_md_asm_adjust): Likewise.
	* config/avr/avr.c (avr_md_asm_adjust): Likewise.
	* config/cris/cris.c (cris_md_asm_adjust): Likewise.
	* config/i386/i386.c (ix86_md_asm_adjust): Likewise.
	* config/mn10300/mn10300.c (mn10300_md_asm_adjust): Likewise.
	* config/nds32/nds32.c (nds32_md_asm_adjust): Likewise.
	* config/pdp11/pdp11.c (pdp11_md_asm_adjust): Likewise.
	* config/rs6000/rs6000.c (rs6000_md_asm_adjust): Likewise.
	* config/s390/s390.c (s390_md_asm_adjust): Likewise.
	* config/vax/vax.c (vax_md_asm_adjust): Likewise.
	* config/visium/visium.c (visium_md_asm_adjust): Likewise.
	* doc/tm.texi: Regenerate.
	* target.def: Add location argument to md_asm_adjust.

2021-07-15  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* tree-diagnostic.c (diagnostic_report_current_function): Use the
	diagnostic's location, not input_location.

2021-07-15  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* cfgexpand.c (tree_conflicts_with_clobbers_p): Pass location to
	diagnostics.
	(expand_asm_stmt): Likewise.

2021-07-14  Peter Bergner  <bergner@linux.ibm.com>

	* config/rs6000/rs6000.c (adjacent_mem_locations): Return the lower
	addressed memory rtx, if any.
	(rs6000_split_multireg_move): Fix code formatting.
	Handle MMA build built-ins with operands in adjacent memory locations.

2021-07-14  Peter Bergner  <bergner@linux.ibm.com>

	* config/rs6000/rs6000.c (rs6000_split_multireg_move): Move to later
	in the file.

2021-07-14  Jason Merrill  <jason@redhat.com>

	* sel-sched-ir.h (get_all_loop_exits): Use auto_vec.

2021-07-14  Jason Merrill  <jason@redhat.com>

	* doc/invoke.texi: -fdelete-dead-exceptions is on by default for
	C++.

2021-07-14  Tamar Christina  <tamar.christina@arm.com>

	* tree-vect-patterns.c (vect_recog_dot_prod_pattern):
	Remove erroneous line.

2021-07-14  Andrew MacLeod  <amacleod@redhat.com>

	* params.opt (param_evrp_mode): Change default.

2021-07-14  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (udot, sdot): Rename to...
	(sdot_prod, udot_prod): ...These.
	* config/aarch64/aarch64-simd.md (<sur>dot_prod<vsi2qi>): Remove.
	(aarch64_<sur>dot<vsi2qi>): Rename to...
	(<sur>dot_prod<vsi2qi>): ...This.
	* config/aarch64/arm_neon.h (vdot_u32, vdotq_u32, vdot_s32, vdotq_s32):
	Update builtins.

2021-07-14  Tamar Christina  <tamar.christina@arm.com>

	* config/arm/neon.md (<sup>dot_prod<vsi2qi>): Drop statements.

2021-07-14  Tamar Christina  <tamar.christina@arm.com>

	* doc/sourcebuild.texi (arm_v8_2a_i8mm_neon_hw): Document.

2021-07-14  Tamar Christina  <tamar.christina@arm.com>

	* config/arm/neon.md (usdot_prod<vsi2qi>): New.

2021-07-14  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_usdot<vsi2qi>): Rename to...
	(usdot_prod<vsi2qi>): ... This.
	* config/aarch64/aarch64-simd-builtins.def (usdot): Rename to...
	(usdot_prod): ...This.
	* config/aarch64/arm_neon.h (vusdot_s32, vusdotq_s32): Likewise.
	* config/aarch64/aarch64-sve.md (@aarch64_<sur>dot_prod<vsi2qi>):
	Rename to...
	(@<sur>dot_prod<vsi2qi>): ...This.
	* config/aarch64/aarch64-sve-builtins-base.cc
	(svusdot_impl::expand): Use it.

2021-07-14  Tamar Christina  <tamar.christina@arm.com>

	* optabs.def (usdot_prod_optab): New.
	* doc/md.texi: Document it and clarify other dot prod optabs.
	* optabs-tree.h (enum optab_subtype): Add optab_vector_mixed_sign.
	* optabs-tree.c (optab_for_tree_code): Support usdot_prod_optab.
	* optabs.c (expand_widen_pattern_expr): Likewise.
	* tree-cfg.c (verify_gimple_assign_ternary): Likewise.
	* tree-vect-loop.c (vectorizable_reduction): Query dot-product kind.
	* tree-vect-patterns.c (vect_supportable_direct_optab_p): Take optional
	optab subtype.
	(vect_widened_op_tree): Optionally ignore
	mismatch types.
	(vect_recog_dot_prod_pattern): Support usdot_prod_optab.

2021-07-14  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101395
	* config/i386/driver-i386.c (host_detect_local_cpu): Check
	"arch [32|64]" and "tune [32|64]" for 32-bit and 64-bit codegen.
	Enable UINTR only for 64-bit codegen.
	* config/i386/i386-options.c
	(ix86_option_override_internal::DEF_PTA): Skip PTA_UINTR if not
	in 64-bit mode.
	* config/i386/i386.h (ARCH_ARG): New.
	(CC1_CPU_SPEC): Pass "[arch|tune] 32" for 32-bit codegen and
	"[arch|tune] 64" for 64-bit codegen.

2021-07-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101445
	* tree-vect-stmts.c (vectorizable_load): Do the gap adjustment
	of the IV in the correct direction for negative stride
	accesses.

2021-07-14  Jakub Jelinek  <jakub@redhat.com>

	PR go/101407
	* godump.c (godump_str_hash): New type.
	(godump_container::pot_dummy_types): Use string_hash instead of
	ptr_hash in the hash_set.

2021-07-14  Richard Biener  <rguenther@suse.de>

	* tree-vect-loop.c (vect_find_reusable_accumulator): Handle
	vector types where the old vector type has a multiple of
	the new vector type elements.
	(vect_create_partial_epilog): New function, split out from...
	(vect_create_epilog_for_reduction): ... here.
	(vect_transform_cycle_phi): Reduce the re-used accumulator
	to the new vector type.

2021-07-14  Alexandre Oliva  <oliva@adacore.com>

	* tree-ssa-alias.c (attr_fnspec::verify): Fix index in
	non-'t'-sized arg check.

2021-07-14  Alexandre Oliva  <oliva@adacore.com>

	* tree-cfg.c (cleanup_dead_labels_eh): Update
	post_landing_pad label upon change of landing pad block's
	primary label.
	(cleanup_dead_labels): Check that a removed label is not that
	of a landing pad.

2021-07-13  Jonathan Wright  <jonathan.wright@arm.com>

	* combine.c (combine_simplify_rtx): Add vec_select -> subreg
	simplification.
	* config/aarch64/aarch64.md (*zero_extend<SHORT:mode><GPI:mode>2_aarch64):
	Add Neon to general purpose register case for zero-extend
	pattern.
	* config/arm/vfp.md (*arm_movsi_vfp): Remove "*" from *t -> r
	case to prevent some cases opting to go through memory.
	* cse.c (fold_rtx): Add vec_select -> subreg simplification.
	* rtl.c (rtvec_series_p): Define predicate to determine
	whether a vector contains a linear series of integers.
	* rtl.h (rtvec_series_p): Define.
	* rtlanal.c (vec_series_lowpart_p): Define predicate to
	determine if a vector selection is equivalent to the low part
	of the vector.
	* rtlanal.h (vec_series_lowpart_p): Define.
	* simplify-rtx.c (simplify_context::simplify_binary_operation_1):
	Add vec_select -> subreg simplification.

2021-07-13  Paul A. Clarke  <pc@us.ibm.com>

	* config/rs6000/smmintrin.h (_mm_testz_si128, _mm_testc_si128,
	_mm_testnzc_si128, _mm_test_all_ones, _mm_test_all_zeros,
	_mm_test_mix_ones_zeros): New.

2021-07-13  Roger Sayle  <roger@nextmovesoftware.com>
	    Richard Biener  <rguenther@suse.de>

	* gimple.c (gimple_could_trap_p_1):  Make S argument a
	"const gimple*".  Preserve constness in call to
	gimple_asm_volatile_p.
	(gimple_could_trap_p): Make S argument a "const gimple*".
	* gimple.h (gimple_could_trap_p_1, gimple_could_trap_p):
	Update function prototypes.

2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vectorizer.h (vect_reusable_accumulator): New structure.
	(_loop_vec_info::main_loop_edge): New field.
	(_loop_vec_info::skip_main_loop_edge): Likewise.
	(_loop_vec_info::skip_this_loop_edge): Likewise.
	(_loop_vec_info::reusable_accumulators): Likewise.
	(_stmt_vec_info::reduc_scalar_results): Likewise.
	(_stmt_vec_info::reused_accumulator): Likewise.
	(vect_get_main_loop_result): Declare.
	* tree-vectorizer.c (vec_info::new_stmt_vec_info): Initialize
	reduc_scalar_inputs.
	(vec_info::free_stmt_vec_info): Free reduc_scalar_inputs.
	* tree-vect-loop-manip.c (vect_get_main_loop_result): New function.
	(vect_do_peeling): Fill an epilogue loop's main_loop_edge,
	skip_main_loop_edge and skip_this_loop_edge fields.
	* tree-vect-loop.c (INCLUDE_ALGORITHM): Define.
	(vect_emit_reduction_init_stmts): New function.
	(get_initial_def_for_reduction): Use it.
	(get_initial_defs_for_reduction): Likewise.  Change the vinfo
	parameter to a loop_vec_info.
	(vect_create_epilog_for_reduction): Store the scalar results
	in the reduc_info.  If an epilogue loop is reusing an accumulator
	from the main loop, and if the epilogue loop can also be skipped,
	try to place the reduction code in the join block.  Record
	accumulators that could potentially be reused by epilogue loops.
	(vect_transform_cycle_phi): When vectorizing epilogue loops,
	try to reuse accumulators from the main loop.  Record the initial
	value in reduc_info for non-SLP reductions too.

2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vect-loop.c (get_initial_def_for_reduction): Remove
	adjustment handling.  Take the neutral value as an argument,
	in place of the code argument.
	(vect_transform_cycle_phi): Update accordingly.  Handle the
	initial values of cond reductions separately from code reductions.
	Choose the adjustment here rather than in
	get_initial_def_for_reduction.  Sink the splat of vec_initial_def.

2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vect-loop.c (neutral_op_for_slp_reduction): Replace with...
	(neutral_op_for_reduction): ...this, providing a more general
	interface.
	(vect_create_epilog_for_reduction): Update accordingly.
	(vectorizable_reduction): Likewise.
	(vect_transform_cycle_phi): Likewise.

2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vect-loop.c (get_initial_def_for_reduction): Take the
	reduc_info instead of the original stmt_vec_info.
	(vect_transform_cycle_phi): Update accordingly.

2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vect-loop.c (get_initial_defs_for_reduction): Take the
	reduc_info as an additional parameter.
	(vect_transform_cycle_phi): Update accordingly.

2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vectorizer.h: Include tree-ssa-operands.h.
	(vect_phi_initial_value): New function.
	* tree-vect-loop.c (neutral_op_for_slp_reduction): Use it.
	(get_initial_defs_for_reduction, info_for_reduction): Likewise.
	(vect_create_epilog_for_reduction, vectorizable_reduction): Likewise.
	(vect_transform_cycle_phi, vectorizable_induction): Likewise.

2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vect-loop.c (vect_create_epilog_for_reduction): Convert
	the phi results to vectype after creating them.  Remove later
	conversion code that thus becomes redundant.

2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vect-loop.c (vect_create_epilog_for_reduction): Replace
	the new_phis vector with a reduc_inputs vector.  Combine handling
	of reduction chains and ncopies > 1.

2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vect-loop.c (vect_create_epilog_for_reduction): Truncate
	scalar_results to group_size elements after reducing down from
	N*group_size elements.  Construct an array_slice of the live-out
	stmts and assert that there is one stmt per scalar result.

2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vect-loop.c (vect_create_epilog_for_reduction): Remove
	nested_in_vect_loop and use double_reduc everywhere.  Remove dead
	assignment to "loop".

2021-07-13  Richard Sandiford  <richard.sandiford@arm.com>

	* internal-fn.c (vectorized_internal_fn_supported_p): Handle
	vector types first.  For scalar types, consider both the preferred
	vector mode and the alternative vector modes.
	* optabs-query.c (can_vec_mask_load_store_p): Use the same
	structure as above, in particular using related_vector_mode
	for modes provided by autovectorize_vector_modes.

2021-07-13  Jakub Jelinek  <jakub@redhat.com>
	    Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101419
	* tree-pass.h (PROP_objsz): Define.
	(make_pass_early_object_sizes): Declare.
	* passes.def (pass_all_early_optimizations): Rename pass_object_sizes
	there to pass_early_object_sizes, drop parameter.
	(pass_all_optimizations): Move pass_object_sizes right after pass_ccp,
	drop parameter, move pass_post_ipa_warn right after that.
	* tree-object-size.c (pass_object_sizes::execute): Rename to...
	(object_sizes_execute): ... this.  Add insert_min_max_p argument.
	(pass_data_object_sizes): Move after object_sizes_execute.
	(pass_object_sizes): Likewise.  In execute method call
	object_sizes_execute, drop set_pass_param method and insert_min_max_p
	non-static data member and its initializer in the ctor.
	(pass_data_early_object_sizes, pass_early_object_sizes,
	make_pass_early_object_sizes): New.
	* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Use
	(cfun->curr_properties & PROP_objsz) instead of cfun->after_inlining.

2021-07-13  Kito Cheng  <kito.cheng@sifive.com>

	PR target/101275
	* config/riscv/constraints.md ("S"): Update description and remove
	@internal.
	* doc/md.texi (Machine Constraints): Document the 'S' constraints
	for RISC-V.

2021-07-13  Richard Biener  <rguenther@suse.de>

	Revert:
	2021-07-12  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (vect_slp_region): Show the number of
	SLP graph entries in the optimization message.

2021-07-13  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/altivec.md (xxspltiw_v4sf): Change local variable
	value to to long.
	* config/rs6000/rs6000-protos.h (rs6000_const_f32_to_i32): Change
	return type to long.
	* config/rs6000/rs6000.c (rs6000_const_f32_to_i32): Change return
	type to long.

2021-07-12  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-fold.cc (fold_using_range::range_of_builtin_ubsan_call):
	Query relation between the 2 operands and use it.

2021-07-12  Sergei Trofimovich  <siarheit@google.com>

	* doc/cfg.texi: Fix s/ei_safe_safe/ei_safe_edge/ typo.

2021-07-12  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/101424
	* config/i386/predicates.md (vec_setm_sse41_operand):
	Rename from vec_setm_operand.
	(vec_setm_avx2_operand): New predicate.
	* config/i386/sse.md (vec_set<V_128:mode>): Use V_128 mode iterator.
	Use vec_setm_sse41_operand as operand 2 predicate.
	(vec_set<V_256_512:mode): New expander.
	* config/i386/mmx.md (vec_setv2hi): Use vec_setm_sse41_operand
	as operand 2 predicate.

2021-07-12  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/101335
	* range-op.cc (operator_cast::lhs_op1_relation): Delete.

2021-07-12  Andrew Pinski  <apinski@marvell.com>

	* tree-ssa-phiopt.c (match_simplify_replacement): Move
	insert of the sequence before the movement of the
	statement. Check if to see if the statement is used
	outside of the original phi to see if we should move it.

2021-07-12  Richard Biener  <rguenther@suse.de>

	* dump-context.h (debug_dump_context::debug_dump_context):
	Add FILE * parameter defaulted to stderr.
	* dumpfile.c (debug_dump_context::debug_dump_context): Adjust.
	* tree-vect-slp.c (dot_slp_tree): New functions.

2021-07-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101373
	* tree-ssa-pre.c (prune_clobbered_mems): Also prune trapping
	references when the BB may not return.
	(compute_avail): Pass in the function we're working on and
	replace cfun references with it.  Externally throwing
	const calls also possibly terminate the function.
	(pass_pre::execute): Pass down the function we're working on.
	* gcse.c (compute_hash_table_work): Externally throwing
	const/pure calls also need record_last_mem_set_info.
	* postreload-gcse.c (record_opr_changes): Looping or externally
	throwing const/pure calls also need record_last_mem_set_info.

2021-07-12  Uroš Bizjak  <ubizjak@gmail.com>

	* recog.c (memory_address_addr_space_p): Change the type to bool.
	Return true/false instead of 1/0.
	(offsettable_memref_p): Ditto.
	(offsettable_nonstrict_memref_p): Ditto.
	(offsettable_address_addr_space_p): Ditto.
	Change the type of addressp indirect function to bool.
	* recog.h (memory_address_addr_space_p): Change the type to bool.
	(strict_memory_address_addr_space_p): Ditto.
	(offsettable_memref_p): Ditto.
	(offsettable_nonstrict_memref_p): Ditto.
	(offsettable_address_addr_space_p): Ditto.
	* reload.c (maybe_memory_address_addr_space_p): Ditto.
	(strict_memory_address_addr_space_p): Change the type to bool.
	Return true/false instead of 1/0.
	(maybe_memory_address_addr_space_p): Change the type to bool.

2021-07-12  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (vect_slp_region): Show the number of
	SLP graph entries in the optimization message.

2021-07-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101394
	* tree-ssa-pre.c (do_pre_regular_insertion): Avoid inserting
	copies from abnormals for a full redundancy.

2021-07-12  Richard Biener  <rguenther@suse.de>

	PR middle-end/101423
	* gimple.c (gimple_could_trap_p_1): Internal function calls
	do not trap.
	* tree-eh.c (tree_could_trap_p): Likewise.

2021-07-12  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>

	PR target/66791
	* config/arm/arm_neon.h (vmul_n_u32): Replace call to builtin with
	__a * __b.
	(vmulq_n_u32): Likewise.
	(vmul_n_f32): Gate __a * __b on __FAST_MATH__.
	(vmulq_n_f32): Likewise.
	(vmul_n_f16): Likewise.
	(vmulq_n_f16): Likewise.

2021-07-12  Martin Liska  <mliska@suse.cz>

	PR sanitizer/101425
	* gcc.c (check_offload_target_name): Call
	  candidates_list_and_hint only if we have a candidate.

2021-07-12  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>

	PR target/98435
	* config/arm/neon.md (vec_init): Move to ...
	* config/arm/vec-common.md (vec_init): ... here.
	Change the pattern's mode to VDQX and gate it on VALID_MVE_MODE.

2021-07-12  Roger Sayle  <roger@nextmovesoftware.com>

	PR tree-optimization/101403
	* match.pd ((T)bswap(X)>>C): Correctly handle cases where
	signedness of the shift is not the same as the signedness of
	the type extension.

2021-07-09  Roger Sayle  <roger@nextmovesoftware.com>
	    Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (*divmodsi4_const): Optimize SImode
	divmod of a constant numerator with new define_insn_and_split.

2021-07-09  Iain Sandoe  <iain@sandoe.co.uk>

	PR target/100152
	* config/i386/i386-expand.c (ix86_expand_call): If a call is
	to a non-local-binding, or local but to a public symbol, then
	assume that it might be indirected via the lazy symbol binder.
	Mark R10 and R10 as clobbered in that case.

2021-07-09  Eric Botcazou  <ebotcazou@adacore.com>

	PR target/101377
	* gcc.c (ASM_DEBUG_DWARF_OPTION): Set again to --gdwarf2 in
	the case where HAVE_AS_WORKING_DWARF_N_FLAG is not defined
	and HAVE_LD_BROKEN_PE_DWARF5 is defined.

2021-07-09  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (*udivmodsi4_pow2_zext_1): Limit the
	log2 range of operands[3] to [1,31].
	(*udivmodsi4_pow2_zext_2): Ditto.  Correct insn RTX pattern.

2021-07-09  Sergei Trofimovich  <siarheit@google.com>

	* doc/md.texi: Don't split @smallexample in multiple @groups.

2021-07-09  Sergei Trofimovich  <siarheit@google.com>

	* doc/md.texi: Add missing 'see' word.

2021-07-09  Andrew Pinski  <apinski@marvell.com>

	* tree-ssa-phiopt.c (phiopt_early_allow): Change arguments
	to take sequence and gimple_match_op.  Accept the case where
	op is a SSA_NAME and one statement in the sequence.
	Also allow constants.
	(gimple_simplify_phiopt): Always pass a sequence to resimplify.
	Update call to phiopt_early_allow.  Discard the sequence if not
	used.

2021-07-09  Xi Ruoyao  <xry111@mengyan1223.wang>

	PR target/100760
	PR target/100761
	PR target/100762
	* config/mips/mips.c (mips_const_insns): Use MSA_SUPPORTED_MODE_P
	instead of ISA_HAS_MSA.
	(mips_expand_vec_unpack): Likewise.
	(mips_expand_vector_init): Likewise.

2021-07-09  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/vsx.md (mods_<mode>): Rename to...
	(mod<mode>3): ... this.
	(modu_<mode>): Rename to...
	(umod<mode>3): ... this.
	* config/rs6000/rs6000-builtin.def (MODS_V2DI, MODS_V4SI, MODU_V2DI,
	MODU_V4SI): Adjust.

2021-07-08  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/shiftrotate.md (variable shifts): Expose condition
	code handling for the test before the loop.

2021-07-08  Martin Jambor  <mjambor@suse.cz>

	PR ipa/101066
	* ipa-sra.c (class isra_call_summary): New member
	m_before_any_store, initialize it in the constructor.
	(isra_call_summary::dump): Dump the new field.
	(ipa_sra_call_summaries::duplicate): Copy it.
	(process_scan_results): Set it.
	(isra_write_edge_summary): Stream it.
	(isra_read_edge_summary): Likewise.
	(param_splitting_across_edge): Only override
	safe_to_import_accesses if m_before_any_store is set.

2021-07-08  Martin Sebor  <msebor@redhat.com>

	PR bootstrap/101374
	* gimple-array-bounds.cc (array_bounds_checker::check_mem_ref):
	Use Object Size Type 0 instead of 1.

2021-07-08  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vect-loop.c (vectorizable_reduction): Remove always-true
	if condition.

2021-07-08  Richard Sandiford  <richard.sandiford@arm.com>

	* match.pd: Simplify an extend-operate-truncate sequence involving
	a POLY_INT_CST.

2021-07-08  Roger Sayle  <roger@nextmovesoftware.com>
	    Richard Biener  <rguenther@suse.de>

	PR tree-optimization/40210
	* match.pd (bswap optimizations): Simplify (bswap(x)>>C1)&C2 as
	(x>>C3)&C2 when possible.  Simplify bswap(x)>>C1 as ((T)x)>>C2
	when possible.  Simplify bswap(x)&C1 as (x>>C2)&C1 when 0<=C1<=255.

2021-07-08  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100637
	* config/i386/i386-expand.c (ix86_expand_sse_unpack):
	Handle V4QI mode.
	* config/i386/mmx.md (V_32): New mode iterator.
	(mov<V_32:mode>): Use V_32 mode iterator.
	(*mov<V_32:mode>_internal): Ditto.
	(*push<V_32:mode>2_rex64): Ditto.
	(*push<V_32:mode>2): Ditto.
	(movmisalign<V_32:mode>): Ditto.
	(mmx_<any_shiftrt:insn>v1si3): New insn pattern.
	(sse4_1_<any_extend:code>v2qiv2hi2): Ditto.
	(vec_unpacks_lo_v4qi): New expander.
	(vec_unpacks_hi_v4qi): Ditto.
	(vec_unpacku_lo_v4qi): Ditto.
	(vec_unpacku_hi_v4qi): Ditto.
	* config/i386/i386.h (VALID_SSE2_REG_MODE): Add V1SImode.
	(VALID_INT_MODE_P): Ditto.

2021-07-08  Michael Meissner  <meissner@linux.ibm.com>

	PR target/100809
	* config/rs6000/rs6000.md (udivti3): New insn.
	(divti3): New insn.
	(umodti3): New insn.
	(modti3): New insn.

2021-07-07  Martin Sebor  <msebor@redhat.com>

	PR tree-optimization/100137
	PR tree-optimization/99121
	PR tree-optimization/97027
	* builtins.c (access_ref::access_ref): Also set offmax.
	(access_ref::offset_in_range): Define new function.
	(access_ref::add_offset): Set offmax.
	(access_ref::inform_access): Handle access_none.
	(handle_mem_ref): Clear ostype.
	(compute_objsize_r): Handle ASSERT_EXPR.
	* builtins.h (struct access_ref): Add offmax member.
	* gimple-array-bounds.cc (array_bounds_checker::check_mem_ref): Use
	compute_objsize() and simplify.

2021-07-07  Peter Bergner  <bergner@linux.ibm.com>

	* config/rs6000/rs6000-call.c (mma_init_builtins): Use VSX_BUILTIN_LXVP
	and VSX_BUILTIN_STXVP.

2021-07-07  Martin Sebor  <msebor@redhat.com>

	PR target/101363
	* config/aarch64/aarch64.c (aarch64_simd_lane_bounds): Remove
	a stray %K from error_at() missed in r12-2088.

2021-07-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99728
	* tree-ssa-loop-im.c (gather_mem_refs_stmt): Record
	aggregate copies.
	(mem_refs_may_alias_p): Add assert we handled aggregate
	copies elsewhere.
	(sm_seq_valid_bb): Give up when running into aggregate copies.
	(ref_indep_loop_p): Handle aggregate copies as never
	being invariant themselves but allow other refs to be
	disambiguated against them.
	(can_sm_ref_p): Do not try to apply store-motion to aggregate
	copies.

2021-07-06  Indu Bhagat  <indu.bhagat@oracle.com>

	PR debug/101283
	* dwarf2ctf.c (ctf_get_AT_data_member_location): Multiply by 8 to get
	number of bits.

2021-07-06  Martin Sebor  <msebor@redhat.com>

	* gimple-pretty-print.c (percent_G_format): Remove.
	* tree-diagnostic.c (default_tree_printer): Remove calls.
	* tree-pretty-print.c (percent_K_format): Remove.
	* tree-pretty-print.h (percent_K_format): Remove.

2021-07-06  Martin Sebor  <msebor@redhat.com>

	* config/aarch64/aarch64-builtins.c (aarch64_simd_expand_builtin):
	Remove %K and use error_at.
	(aarch64_expand_fcmla_builtin): Same.
	(aarch64_expand_builtin_tme): Same.
	(aarch64_expand_builtin_memtag): Same.
	* config/arm/arm-builtins.c (arm_expand_acle_builtin): Same.
	(arm_expand_builtin): Same.
	* config/arm/arm.c (bounds_check): Same.

2021-07-06  Martin Sebor  <msebor@redhat.com>

	* builtins.c (warn_string_no_nul): Remove %G.
	(maybe_warn_for_bound): Same.
	(warn_for_access): Same.
	(check_access): Same.
	(check_strncat_sizes): Same.
	(expand_builtin_strncat): Same.
	(expand_builtin_strncmp): Same.
	(expand_builtin): Same.
	(expand_builtin_object_size): Same.
	(warn_dealloc_offset): Same.
	(maybe_emit_free_warning): Same.
	* calls.c (maybe_warn_alloc_args_overflow): Same.
	(maybe_warn_nonstring_arg): Same.
	(maybe_warn_rdwr_sizes): Same.
	* expr.c (expand_expr_real_1): Remove %K.
	* gimple-fold.c (gimple_fold_builtin_strncpy): Remove %G.
	(gimple_fold_builtin_strncat): Same.
	* gimple-ssa-sprintf.c (format_directive): Same.
	(handle_printf_call): Same.
	* gimple-ssa-warn-alloca.c (pass_walloca::execute): Same.
	* gimple-ssa-warn-restrict.c (maybe_diag_overlap): Same.
	(maybe_diag_access_bounds): Same.  Call gimple_location.
	(check_bounds_or_overlap): Same.
	* trans-mem.c (ipa_tm_scan_irr_block): Remove %K.  Simplify.
	* tree-ssa-ccp.c (pass_post_ipa_warn::execute): Remove %G.
	* tree-ssa-strlen.c (maybe_warn_overflow): Same.
	(maybe_diag_stxncpy_trunc): Same.
	(handle_builtin_stxncpy_strncat): Same.
	(maybe_warn_pointless_strcmp): Same.
	* tree-ssa-uninit.c (maybe_warn_operand): Same.

2021-07-06  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/97194
	* config/i386/predicates.md (vec_setm_operand): Enable
	register_operand for TARGET_SSE4_1.
	* config/i386/mmx.md (vec_setv2hi): Use vec_setm_operand
	as operand 2 predicate.  Call ix86_expand_vector_set_var
	for non-constant index operand.
	(vec_setv4qi): Use vec_setm_mmx_operand as operand 2 predicate.
	Call ix86_expand_vector_set_var for non-constant index operand.

2021-07-06  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/jumpcall.md (*branch): When possible, generate
	the comparison in CCZN mode.
	* config/h8300/predicates.md (simple_memory_operand): Reject all
	auto-increment addressing modes.

2021-07-06  Iain Sandoe  <iain@sandoe.co.uk>

	PR bootstrap/100246
	* config/i386/i386.h (struct stringop_algs): Define a CTOR for
	this type.

2021-07-06  Richard Biener  <rguenther@suse.de>

	* doc/md.texi (vec_fmaddsub<mode>4): Document.
	(vec_fmsubadd<mode>4): Likewise.
	* optabs.def (vec_fmaddsub$a4): Add.
	(vec_fmsubadd$a4): Likewise.
	* internal-fn.def (IFN_VEC_FMADDSUB): Add.
	(IFN_VEC_FMSUBADD): Likewise.
	* tree-vect-slp-patterns.c (addsub_pattern::recognize):
	Refactor to handle IFN_VEC_FMADDSUB and IFN_VEC_FMSUBADD.
	(addsub_pattern::build): Likewise.
	* tree-vect-slp.c (vect_optimize_slp): CFN_VEC_FMADDSUB
	and CFN_VEC_FMSUBADD are not transparent for permutes.
	* config/i386/sse.md (vec_fmaddsub<mode>4): New expander.
	(vec_fmsubadd<mode>4): Likewise.

2021-07-06  Richard Biener  <rguenther@suse.de>

	* doc/invoke.texi (fmove-loop-stores): Document.
	* common.opt (fmove-loop-stores): New option.
	* opts.c (default_options_table): Enable -fmove-loop-stores
	at -O1 but not -Og.
	* tree-ssa-loop-im.c (pass_lim::execute): Pass
	flag_move_loop_stores instead of true to
	loop_invariant_motion_in_fun.

2021-07-06  Iain Sandoe  <iain@sandoe.co.uk>

	* doc/install.texi: Document --with-dsymutil.

2021-07-06  Andrew Pinski  <apinski@marvell.com>

	PR tree-optimization/101256
	* dbgcnt.def (phiopt_edge_range): New counter.
	* tree-ssa-phiopt.c (replace_phi_edge_with_variable):
	Check to make sure the new name is defined in the same
	bb as the conditional before duplicating range info.
	Also add debug counter.

2021-07-06  Kewen Lin  <linkw@linux.ibm.com>

	PR rtl-optimization/100328
	* config/i386/i386-options.c (ix86_option_override_internal):
	Set param_ira_consider_dup_in_all_alts to 0.

2021-07-06  Kewen Lin  <linkw@linux.ibm.com>

	PR rtl-optimization/100328
	* doc/invoke.texi (ira-consider-dup-in-all-alts): Document new
	parameter.
	* ira.c (ira_get_dup_out_num): Adjust as parameter
	param_ira_consider_dup_in_all_alts.
	* params.opt (ira-consider-dup-in-all-alts): New.
	* ira-conflicts.c (process_regs_for_copy): Add one parameter
	single_input_op_has_cstr_p.
	(get_freq_for_shuffle_copy): New function.
	(add_insn_allocno_copies): Adjust as single_input_op_has_cstr_p.
	* ira-int.h (ira_get_dup_out_num): Add one bool parameter.

2021-07-05  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/shiftrotate.md (shift-by-variable patterns): Update to
	generate condition code aware RTL directly.

2021-07-05  Andrew Pinski  <apinski@marvell.com>

	PR tree-optimization/101039
	* match.pd (A CMP 0 ? A : -A): New patterns.
	* tree-ssa-phiopt.c (abs_replacement): Delete function.
	(tree_ssa_phiopt_worker): Don't call abs_replacement.
	Update comment about abs_replacement.

2021-07-05  Andrew Pinski  <apinski@marvell.com>

	* tree-ssa-phiopt.c (gimple_simplify_phiopt):
	If "A ? B : C" fails to simplify, try "(!A) ? C : B".

2021-07-05  Andrew Pinski  <apinski@marvell.com>

	* tree-ssa-phiopt.c (match_simplify_replacement):
	Add early_p argument. Call gimple_simplify_phiopt
	instead of gimple_simplify.
	(tree_ssa_phiopt_worker): Update call to
	match_simplify_replacement and allow unconditionally.
	(phiopt_early_allow): New function.
	(gimple_simplify_phiopt): New function.

2021-07-05  Andrew Pinski  <apinski@marvell.com>

	PR middle-end/101237
	* fold-const.c (negate_expr_p): Remove call to element_mode
	and TREE_MODE/TREE_TYPE when calling HONOR_SIGNED_ZEROS,
	HONOR_SIGN_DEPENDENT_ROUNDING, and HONOR_SNANS.
	(fold_negate_expr_1): Likewise.
	(const_unop): Likewise.
	(fold_cond_expr_with_comparison): Likewise.
	(fold_binary_loc): Likewise.
	(fold_ternary_loc): Likewise.
	(tree_call_nonnegative_warnv_p): Likewise.
	* match.pd (-(A + B) -> (-B) - A): Likewise.

2021-07-05  Iain Sandoe  <iain@sandoe.co.uk>

	* configure.ac: Handle --with-dsymutil in the same way as we
	do for the assembler and linker.  (DEFAULT_DSYMUTIL): New.
	Extract the type and version for the dsymutil configured or
	found by the default searches.
	* config.in: Regenerated.
	* configure: Regenerated.
	* collect2.c (do_dsymutil): Handle locating dsymutil in the
	same way as for the assembler and  linker.
	* config/darwin.h (DSYMUTIL): Delete.
	* gcc.c: Report a configured dsymutil correctly.
	* exec-tool.in: Allow for dsymutil.

2021-07-05  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386-expand.c (ix86_split_mmx_punpck):
	Handle V4QI and V2HI modes.
	(expand_vec_perm_blend): Allow 4-byte vector modes with TARGET_SSE4_1.
	Handle V4QI mode. Emit mmx_pblendvb32 for 4-byte modes.
	(expand_vec_perm_pshufb): Rewrite to use switch statemets.
	Handle 4-byte dual operands with TARGET_XOP and single operands
	with TARGET_SSSE3.  Emit mmx_ppermv32 for TARGET_XOP and
	mmx_pshufbv4qi3 for TARGET_SSSE3.
	(expand_vec_perm_pblendv): Allow 4-byte vector modes with TARGET_SSE4_1.
	(expand_vec_perm_interleave2): Allow 4-byte vector modes.
	(expand_vec_perm_pshufb2): Allow 4-byte vector modes with TARGET_SSSE3.
	(expand_vec_perm_even_odd_1): Handle V4QI mode.
	(expand_vec_perm_broadcast_1): Handle V4QI mode.
	(ix86_vectorize_vec_perm_const): Handle V4QI mode.
	* config/i386/mmx.md (mmx_ppermv32): New insn pattern.
	(mmx_pshufbv4qi3): Ditto.
	(*mmx_pblendw32): Ditto.
	(*mmx_pblendw64): Rename from *mmx_pblendw.
	(mmx_punpckhbw_low): New insn_and_split pattern.
	(mmx_punpcklbw_low): Ditto.

2021-07-05  Richard Biener  <rguenther@suse.de>

	* tree-vect-loop-manip.c (vect_loop_versioning): Do not
	set LOOP_C_INFINITE on the vectorized loop.

2021-07-05  Richard Biener  <rguenther@suse.de>

	PR middle-end/101291
	* cfgloopmanip.c (loop_version): Set the loop copy of the
	versioned loop to the new loop.

2021-07-04  Iain Sandoe  <iain@sandoe.co.uk>

	PR target/100269
	* config.gcc: Ensure that Darwin biarch definitions are
	added before i386.h.
	* config/i386/darwin.h (TARGET_64BIT): Remove.
	(PR80556_WORKAROUND): New.
	(REAL_LIBGCC_SPEC): Amend to use PR80556_WORKAROUND.
	(DARWIN_SUBARCH_SPEC): New.
	* config/i386/darwin32-biarch.h (TARGET_64BIT_DEFAULT,
	TARGET_BI_ARCH, PR80556_WORKAROUND): New.
	(REAL_LIBGCC_SPEC): Remove.
	* config/i386/darwin64-biarch.h (TARGET_64BIT_DEFAULT,
	TARGET_BI_ARCH, PR80556_WORKAROUND): New.
	(REAL_LIBGCC_SPEC): Remove.

2021-07-03  H.J. Lu  <hjl.tools@gmail.com>

	PR middle-end/101294
	* expr.c (store_constructor): Don't use vec_duplicate on vector.

2021-07-02  Martin Sebor  <msebor@redhat.com>

	PR middle-end/98871
	PR middle-end/98512
	* diagnostic.c (get_any_inlining_info): New.
	(update_effective_level_from_pragmas): Handle inlining context.
	(diagnostic_enabled): Same.
	(diagnostic_report_diagnostic): Same.
	* diagnostic.h (struct diagnostic_info): Add ctor.
	(struct diagnostic_context): Add new member.
	* tree-diagnostic.c (set_inlining_locations): New.
	(tree_diagnostics_defaults): Set new callback pointer.

2021-07-02  Peter Bergner  <bergner@linux.ibm.com>

	* config/rs6000/rs6000-builtin.def (BU_MMA_PAIR_LD, BU_MMA_PAIR_ST):
	New macros.
	(__builtin_vsx_lxvp, __builtin_vsx_stxvp): New built-ins.
	* config/rs6000/rs6000-call.c (rs6000_gimple_fold_mma_builtin): Expand
	lxvp and stxvp built-ins.
	(mma_init_builtins): Handle lxvp and stxvp built-ins.
	(builtin_function_type): Likewise.
	* doc/extend.texi (__builtin_vsx_lxvp, __builtin_mma_stxvp): Document.

2021-07-02  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/h8300-protos.h (compute_a_shift_cc): Accept
	additional argument for the code.
	* config/h8300/h8300.c (compute_a_shift_cc): Accept additional
	argument for the code.  Just return if the ZN bits are useful or
	not rather than the old style CC_* enums.
	* config/h8300/shiftrotate.md (shiftqi_noscratch): Move before
	more generic shiftqi patterns.
	(shifthi_noscratch, shiftsi_noscratch): Similarly.
	(shiftqi_noscratch_set_flags): New pattern.
	(shifthi_noscratch_set_flags, shiftsi_noscratch_set_flags): Likewise.

2021-07-02  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/101223
	* range-op.cc (build_lt): Add -1 for signed values.
	(built_gt): Subtract -1 for signed values.

2021-07-02  David Faust  <david.faust@oracle.com>

	* btfout.c (get_btf_kind): Support BTF_KIND_FLOAT.
	(btf_asm_type): Likewise.

2021-07-02  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/h8300-protos.h (output_a_shift): Make first argument
	an array of rtx rather than a pointer to rtx.  Add code argument.
	(compute_a_shift_length): Similarly.
	* config/h8300/h8300.c (h8300_shift_costs): Adjust now that the
	shift itself isn't an operand.  Create dummy operand[0] to carry
	a mode and pass a suitable rtx code to compute_a_shift_length.
	(get_shift_alg): Adjust operand number of clobber in output templates.
	(output_a_shift): Make first argument an array of rtx rather than
	a pointer to rtx.  Add code argument for the type of shift.
	Adjust now that the shift itself is no longer an operand.
	(compute_a_shift_length): Similarly.
	* config/h8300/shiftrotate.md (shiftqi, shifthi, shiftsi): Use an
	iterator rather than nshift_operator.
	(shiftqi_noscratch, shifthi_noscratch, shiftsi_noscratch): Likewise.
	(shiftqi_clobber_flags): Adjust to API changes in output_a_shift
	and compute_a_shift_length.
	(shiftqi_noscratch_clobber_flags): Likewise.
	(shifthi_noscratch_clobber_flags): Likewise.
	(shiftsi_noscratch_clobber_flags): Likewise.

2021-07-02  Iain Sandoe  <iain@sandoe.co.uk>

	PR debug/101283
	* config/darwin.h (DSYMUTIL_SPEC): Do not try to run
	dsymutil for BTF/CTF.

2021-07-02  Iain Sandoe  <iain@sandoe.co.uk>

	PR debug/101283
	* config/darwin.h (CTF_INFO_SECTION_NAME): Update the
	segment to include BTF.
	(BTF_INFO_SECTION_NAME): New.

2021-07-02  Jeff Law  <jeffreyalaw@gmail.com>

	* config/m32r/m32r-protos.h (call_operand): Adjust return type.
	(small_data_operand, memreg_operand, small_insn_p): Likewise.
	* config/m32r/m32r.c (call_operand): Adjust return type.
	(small_data_operand, memreg_operand): Likewise.

2021-07-02  Jeff Law  <jeffreyalaw@gmail.com>

	* config/frv/frv-protos.h  (integer_register_operand): Adjust return
	type.
	(frv_load_operand, gpr_or_fpr_operand, gpr_no_subreg_operand): Likewise.
	(fpr_or_int6_operand, gpr_or_int_operand); Likewise.
	(gpr_or_int12_operand, gpr_or_int10_operand); Likewise.
	(move_source_operand, move_destination_operand): Likewise.
	(condexec_source_operand, condexec_dest_operand): Likewise.
	(lr_operand, gpr_or_memory_operand, fpr_or_memory_operand): Likewise.
	(reg_or_0_operand, fcc_operand, icc_operand, cc_operand): Likewise.
	(fcr_operand, icr_operand, cr_operand, call_operand): Likewise.
	(fpr_operand, even_reg_operand, odd_reg_operand): Likewise.
	(even_gpr_operand, odd_gpr_operand, quad_fpr_operand): Likewise.
	(even_fpr_operand, odd_fpr_operand): Likewise.
	(dbl_memory_one_insn_operand, dbl_memory_two_insn_operand): Likewise.
	(int12_operand, int6_operand, int5_operand, uint5_operand): Likewise.
	(uint4_operand, uint1_operand, int_2word_operand): Likewise
	(upper_int16_operand, uint16_operand, symbolic_operand): Likewise.
	(relational_operator, float_relational_operator): Likewise.
	(ccr_eqne_operator, minmax_operator): Likewise.
	(condexec_si_binary_operator, condexec_si_media_operator): Likewise.
	(condexec_si_divide_operator, condexec_si_unary_operator): Likewise.
	(condexec_sf_conv_operator, condexec_sf_add_operator): Likewise.
	(intop_compare_operator, acc_operand, even_acc_operand): Likewise.
	(quad_acc_operand, accg_operand): Likewise.

2021-07-02  Jeff Law  <jeffreyalaw@gmail.com>

	* config/stormy16/stormy16-protos.h (xstormy16_below_100_symbol): Change
	return type to a bool.
	(nonimmediate_nonstack_operand): Likewise.
	(xstormy16_splittable_below100_operand): Likewise.
	* config/stormy16/stormy16.c (xstormy16_below_100_symbol): Fix
	return type.
	(xstormy16_splittable_below100_operand): Likewise.

2021-07-02  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101293
	* tree-ssa-loop-im.c (mem_ref_hasher::equal): Compare MEM_REF bases
	with combined offsets.
	(gather_mem_refs_stmt): Hash MEM_REFs as if their offset were
	combined with the rest of the offset.

2021-07-02  Eric Botcazou  <ebotcazou@adacore.com>

	* config/i386/i386.c (asm_preferred_eh_data_format): Always use the
	PIC encodings for PE-COFF targets.

2021-07-02  Jakub Jelinek  <jakub@redhat.com>

	PR target/101286
	* config/i386/i386-expand.c (ix86_broadcast_from_integer_constant):
	Return nullptr for TImode inner mode.

2021-07-02  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101280
	PR tree-optimization/101173
	* gimple-loop-interchange.cc
	(tree_loop_interchange::valid_data_dependences): Properly
	guard all dependence checks with DDR_REVERSED_P or its
	inverse.

2021-07-02  Hongyu Wang  <hongyu.wang@intel.com>

	* config/i386/i386-expand.c (ix86_expand_builtin):
	Add branch to clear odata when ZF is set for asedecenc_expand
	and wideaesdecenc_expand.

2021-07-02  Eugene Rozenfeld  <erozen@microsoft.com>

	* config/i386/gcc-auto-profile: regenerate

2021-07-02  liuhongt  <hongtao.liu@intel.com>

	* config/i386/sse.md (trunc<mode><pmov_dst_4>2): Refined to ..
	(trunc<mode><pmov_dst_4_lower>2): this.

2021-07-01  David Malcolm  <dmalcolm@redhat.com>

	* diagnostic.h (diagnostic_context::m_file_cache): New field.
	* input.c (class fcache): Rename to...
	(class file_cache_slot): ...this, making most members private and
	prefixing fields with "m_".
	(file_cache_slot::get_file_path): New accessor.
	(file_cache_slot::get_use_count): New accessor.
	(file_cache_slot::missing_trailing_newline_p): New accessor.
	(file_cache_slot::inc_use_count): New.
	(fcache_buffer_size): Move to...
	(file_cache_slot::buffer_size): ...here.
	(fcache_line_record_size): Move to...
	(file_cache_slot::line_record_size): ...here.
	(fcache_tab): Delete, in favor of global_dc->m_file_cache.
	(fcache_tab_size): Move to file_cache::num_file_slots.
	(diagnostic_file_cache_init): Update for move of fcache_tab
	to global_dc->m_file_cache.
	(diagnostic_file_cache_fini): Likewise.
	(lookup_file_in_cache_tab): Convert to...
	(file_cache::lookup_file): ...this.
	(diagnostics_file_cache_forcibly_evict_file): Update for move of
	fcache_tab to global_dc->m_file_cache, moving most of
	implementation to...
	(file_cache::forcibly_evict_file): ...this new function and...
	(file_cache_slot::evict): ...this new function.
	(evicted_cache_tab_entry): Convert to...
	(file_cache::evicted_cache_tab_entry): ...this.
	(add_file_to_cache_tab): Convert to...
	(file_cache::add_file): ...this, moving bulk of implementation
	to...
	(file_cache_slot::create): ..this new function.
	(file_cache::file_cache): New.
	(file_cache::~file_cache): New.
	(lookup_or_add_file_to_cache_tab): Convert to...
	(file_cache::lookup_or_add_file): ..this new function.
	(fcache::fcache): Rename to...
	(file_cache_slot::file_cache_slot): ...this, adding "m_" prefixes
	to fields.
	(fcache::~fcache): Rename to...
	(file_cache_slot::~file_cache_slot): ...this, adding "m_" prefixes
	to fields.
	(needs_read): Convert to...
	(file_cache_slot::needs_read_p): ...this.
	(needs_grow): Convert to...
	(file_cache_slot::needs_grow_p): ...this.
	(maybe_grow): Convert to...
	(file_cache_slot::maybe_grow): ...this.
	(read_data): Convert to...
	(file_cache_slot::read_data): ...this.
	(maybe_read_data): Convert to...
	(file_cache_slot::maybe_read_data): ...this.
	(get_next_line): Convert to...
	(file_cache_slot::get_next_line): ...this.
	(goto_next_line): Convert to...
	(file_cache_slot::goto_next_line): ...this.
	(read_line_num): Convert to...
	(file_cache_slot::read_line_num): ...this.
	(location_get_source_line): Update for moving of globals to
	global_dc->m_file_cache.
	(location_missing_trailing_newline): Likewise.
	* input.h (class file_cache_slot): New forward decl.
	(class file_cache): New.

2021-07-01  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/rs6000.c (rs6000_maybe_emit_fp_cmove): Add IEEE
	128-bit floating point conditional move support.
	(have_compare_and_set_mask): Add IEEE 128-bit floating point
	types.
	* config/rs6000/rs6000.md (mov<mode>cc, IEEE128 iterator): New insn.
	(mov<mode>cc_p10, IEEE128 iterator): New insn.
	(mov<mode>cc_invert_p10, IEEE128 iterator): New insn.
	(fpmask<mode>, IEEE128 iterator): New insn.
	(xxsel<mode>, IEEE128 iterator): New insn.

2021-07-01  Iain Sandoe  <iain@sandoe.co.uk>

	PR debug/101283
	* config/darwin.h (CTF_INFO_SECTION_NAME): New.

2021-07-01  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/i386-expand.c (ix86_expand_vector_init_duplicate):
	Make it global.
	* config/i386/i386-protos.h (ix86_expand_vector_init_duplicate):
	New prototype.
	* config/i386/sse.md (INT_BROADCAST_MODE): New mode iterator.
	(vec_duplicate<mode>): New expander.

2021-07-01  H.J. Lu  <hjl.tools@gmail.com>

	PR target/100865
	* config/i386/i386-expand.c (ix86_expand_vector_init_duplicate):
	New prototype.
	(ix86_byte_broadcast): New function.
	(ix86_convert_const_wide_int_to_broadcast): Likewise.
	(ix86_expand_move): Convert CONST_WIDE_INT to broadcast if mode
	size is 16 bytes or bigger.
	(ix86_broadcast_from_integer_constant): New function.
	(ix86_expand_vector_move): Convert CONST_WIDE_INT and CONST_VECTOR
	to broadcast if mode size is 16 bytes or bigger.
	* config/i386/i386-protos.h (ix86_gen_scratch_sse_rtx): New
	prototype.
	* config/i386/i386.c (ix86_gen_scratch_sse_rtx): New function.

2021-07-01  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/predicates.md (ix86_endbr_immediate_operand):
	Return true/false instead of 1/0.
	(movq_parallel): Ditto.

2021-07-01  Uroš Bizjak  <ubizjak@gmail.com>

	* recog.c (general_operand): Return true/false instead of 1/0.
	(register_operand): Ditto.
	(immediate_operand): Ditto.
	(const_int_operand): Ditto.
	(const_scalar_int_operand): Ditto.
	(const_double_operand): Ditto.
	(push_operand): Ditto.
	(pop_operand): Ditto.
	(memory_operand): Ditto.
	(indirect_operand): Ditto.

2021-07-01  Uroš Bizjak  <ubizjak@gmail.com>

	* genpreds.c (write_predicate_subfunction):
	Change the type of written subfunction to bool.
	(write_one_predicate_function):
	Change the type of written function to bool.
	(write_tm_preds_h): Ditto.
	* recog.h (*insn_operand_predicate_fn): Change the type to bool.
	* recog.c (general_operand): Change the type to bool.
	(address_operand): Ditto.
	(register_operand): Ditto.
	(pmode_register_operand): Ditto.
	(scratch_operand): Ditto.
	(immediate_operand): Ditto.
	(const_int_operand): Ditto.
	(const_scalar_int_operand): Ditto.
	(const_double_operand): Ditto.
	(nonimmediate_operand): Ditto.
	(nonmemory_operand): Ditto.
	(push_operand): Ditto.
	(pop_operand): Ditto.
	(memory_operand): Ditto.
	(indirect_operand): Ditto.
	(ordered_comparison_operator): Ditto.
	(comparison_operator): Ditto.
	* config/i386/i386-expand.c (ix86_expand_sse_cmp):
	Change the type of indirect predicate function to bool.
	* config/rs6000/rs6000.c (easy_vector_constant):
	Change the type to bool.
	* config/mips/mips-protos.h (m16_based_address_p):
	Change the type of operand 3 to bool.

2021-07-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101280
	PR tree-optimization/101173
	* gimple-loop-interchange.cc
	(tree_loop_interchange::valid_data_dependences): Revert
	previous change and instead correctly handle DDR_REVERSED_P
	dependence.

2021-07-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101278
	* tree-ssa-dse.c (dse_classify_store): First check for
	uses, then ignore stmt for chaining purposes.

2021-07-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100778
	* tree-vect-slp.c (vect_schedule_slp_node): Do not place trapping
	vectorized ops ahead of their scalar BB.

2021-07-01  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/101044
	* config/i386/i386.md (*nabs<dwi>2_doubleword):
	New insn_and_split pattern.
	(*nabs<dwi>2_1): Ditto.
	* config/i386/i386-features.c
	(general_scalar_chain::compute_convert_gain):
	Handle (NEG (ABS (...))) RTX.  Rewrite src code
	scanner as switch statement.
	(general_scalar_chain::convert_insn):
	Handle (NEG (ABS (...))) RTX.
	(general_scalar_to_vector_candidate_p):
	Detect  (NEG (ABS (...))) RTX.  Reorder case statements
	for (AND (NOT (...) ...)) fallthrough.

2021-07-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101178
	* tree-vect-slp.c (slpg_vertex::materialize): Remove.
	(slpg::perm_in): Add.
	(slpg::get_perm_in): Remove.
	(slpg::get_perm_materialized): Add.
	(vect_optimize_slp): Handle VEC_PERM nodes more optimally
	during permute propagation and materialization.

2021-07-01  Jakub Jelinek  <jakub@redhat.com>

	PR debug/101266
	* dwarf2out.c (loc_list_from_tree_1): Handle COMPOUND_LITERAL_EXPR.

2021-07-01  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/94366
	* omp-low.c (lower_rec_input_clauses): Rename is_fp_and_or to
	is_truth_op, set it for TRUTH_*IF_EXPR regardless of new_var's type,
	use boolean_type_node instead of integer_type_node as NE_EXPR type.
	(lower_reduction_clauses): Likewise.

2021-06-30  Hafiz Abid Qadeer  <abidh@codesourcery.com>

	* config/gcn/gcn.c: Include dwarf2.h.
	(gcn_addr_space_debug): New function.
	(TARGET_ADDR_SPACE_DEBUG): New hook.

2021-06-30  Hafiz Abid Qadeer  <abidh@codesourcery.com>

	* common/config/gcn/gcn-common.c
	(gcn_option_optimization_table): Change OPT_fomit_frame_pointer to -O3.
	* config/gcn/gcn.c (gcn_expand_prologue): Prefer the frame pointer
	when emitting CFI.
	(gcn_expand_prologue): Prefer the frame pointer when emitting CFI.
	(gcn_frame_pointer_rqd): New function.
	(TARGET_FRAME_POINTER_REQUIRED): New hook.

2021-06-30  Hafiz Abid Qadeer  <abidh@codesourcery.com>

	* config/gcn/gcn.c (move_callee_saved_registers): Emit CFI notes for
	prologue register saves.
	(gcn_debug_unwind_info): Use UI_DWARF2.
	(gcn_dwarf_register_number): Map DWARF_LINK_REGISTER to DWARF PC.
	(gcn_dwarf_register_span): DWARF_LINK_REGISTER doesn't span.
	* config/gcn/gcn.h: (DWARF_FRAME_RETURN_COLUMN): New define.
	(DWARF_LINK_REGISTER): New define.
	(FIRST_PSEUDO_REGISTER): Increment.
	(FIXED_REGISTERS): Add entry for DWARF_LINK_REGISTER.
	(CALL_USED_REGISTERS): Likewise.
	(REGISTER_NAMES): Likewise.

2021-06-30  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101267
	* tree-vect-stmts.c (vect_check_scalar_mask): Adjust
	API and use SLP compatible interface of vect_is_simple_use.
	Reject not vectorized SLP defs for callers that do not support
	that.
	(vect_check_store_rhs): Handle masked stores and pass down
	the appropriate operator index.
	(vectorizable_call): Adjust.
	(vectorizable_store): Likewise.
	(vectorizable_load): Likewise.  Handle SLP pecularity of
	masked loads.
	(vect_is_simple_use): Remove special-casing of masked stores.

2021-06-30  Tobias Burnus  <tobias@codesourcery.com>

	* common.opt (foffload): Remove help as Driver only.
	* gcc.c (display_help): Add -foffload.

2021-06-30  Tobias Burnus  <tobias@codesourcery.com>

	* gcc.c (close_at_file, execute): Replace alloca by XALLOCAVEC.
	(check_offload_target_name): Fix splitting OFFLOAD_TARGETS into
	a candidate list; better inform no offload target is configured
	and fix hint extraction when passed target is not '\0' at [len].
	* common.opt (foffload): Add tailing '.'.
	(foffload-options): Likewise; fix flag name in the help string.

2021-06-30  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>

	PR target/66791
	* config/arm/arm_neon.h: Move vabs intrinsics before vcage_f32.
	(vcage_f32): Gate comparison on __FAST_MATH__.
	(vcageq_f32): Likewise.
	(vcale_f32): Likewise.
	(vcaleq_f32): Likewise.
	(vcagt_f32): Likewise.
	(vcagtq_f32): Likewise.
	(vcalt_f32): Likewise.
	(vcaltq_f32): Likewise.
	(vcage_f16): Likewise.
	(vcageq_f16): Likewise.
	(vcale_f16): Likewise.
	(vcaleq_f16): Likewise.
	(vcagt_f16): Likewise.
	(vcagtq_f16): Likewise.
	(vcalt_f16): Likewise.
	(vcaltq_f16): Likewise.

2021-06-30  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101264
	* tree-vect-slp.c (vect_optimize_slp): Propagate the
	computed perm_in to all "any" permute successors
	we cannot de-duplicate immediately.

2021-06-30  liuhongt  <hongtao.liu@intel.com>

	PR target/101248
	* config/i386/sse.md
	(avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>):
	Refined to ..
	(avx512f_sfixupimm<mode><maskz_scalar_name><round_saeonly_name>):
	this.
	(avx512f_sfixupimm<mode>_mask<round_saeonly_name>"): Refined.
	* config/i386/subst.md (maskz_scalar): New define_subst.
	(maskz_scalar_name): New subst_attr.
	(maskz_scalar_op5): Ditto.
	(round_saeonly_maskz_scalar_op5): Ditto.
	(round_saeonly_maskz_scalar_operand5): Ditto.

2021-06-30  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/rs6000.c (rs6000_xcoff_section_type_flags):
	Increase code CSECT alignment to at least 32 bytes.
	* config/rs6000/xcoff.h (TEXT_SECTION_ASM_OP): Add 32 byte
	alignment designation.

2021-06-29  Sergei Trofimovich  <siarheit@google.com>

	* doc/generic.texi: Fix s/net yet/not yet/ typo.

2021-06-29  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/101254
	* range-op.cc (operator_minus::op1_op2_relation_effect): Check for
	wrapping/non-wrapping when setting the result range.

2021-06-29  Andrew MacLeod  <amacleod@redhat.com>

	* value-query.cc (gimple_range_global): Allow phis.

2021-06-29  Andrew MacLeod  <amacleod@redhat.com>

	* vr-values.c (vr_values::vrp_stmt_computes_nonzero): Use stmt.
	(simplify_using_ranges::op_with_boolean_value_range_p): Add a
	statement for location context.
	(check_for_binary_op_overflow): Ditto.
	(simplify_using_ranges::get_vr_for_comparison): Ditto.
	(simplify_using_ranges::compare_name_with_value): Ditto.
	(simplify_using_ranges::compare_names): Ditto.
	(vrp_evaluate_conditional_warnv_with_ops_using_ranges): Ditto.
	(simplify_using_ranges::simplify_truth_ops_using_ranges): Ditto.
	(simplify_using_ranges::simplify_min_or_max_using_ranges): Ditto.
	(simplify_using_ranges::simplify_internal_call_using_ranges): Ditto.
	(simplify_using_ranges::two_valued_val_range_p): Ditto.
	(simplify_using_ranges::simplify): Ditto.
	* vr-values.h: Adjust prototypes.

2021-06-29  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/95046
	* config/i386/mmx.md (vec_addsubv2sf3): New insn pattern.

2021-06-29  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn.c (gcn_init_libfuncs): New function.
	(TARGET_INIT_LIBFUNCS): Define target hook using above function.
	* config/gcn/gcn.h (UNITS_PER_WORD): Define to 8 for IN_LIBGCC2, 4
	otherwise.
	(LIBGCC2_UNITS_PER_WORD, BITS_PER_WORD): Remove definitions.
	(MAX_FIXED_MODE_SIZE): Change to 128.

2021-06-29  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn.md (UNSPEC_FLBIT_INT): New unspec constant.
	(s_mnemonic): Add clrsb.
	(gcn_flbit<mode>_int): Add insn pattern for SImode/DImode.
	(clrsb<mode>2): Add expander for SImode/DImode.

2021-06-29  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn.md (<su>mulsidi3, <su>mulsidi3_reg, <su>mulsidi3_imm,
	muldi3): Add patterns.

2021-06-29  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn.md (<su>mulsi3_highpart): Change to expander.
	(<su>mulsi3_highpart_reg, <su>mulsi3_highpart_imm): New patterns.

2021-06-29  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn.md (mulsi3): Make s_mulk_i32 variant clobber SCC.

2021-06-29  Joseph Myers  <joseph@codesourcery.com>

	* btfout.c, ctfout.c: Include "memmodel.h".

2021-06-29  Tobias Burnus  <tobias@codesourcery.com>

	* gcc.c (check_offload_target_name): Cast len argument to
	%q.*s to 'int'; avoid -Wstringop-truncation warning.

2021-06-29  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (vect_optimize_slp): Forward propagate
	to "any" permute nodes and relax "any" permute proapgation
	during iterative backward propagation.

2021-06-29  Tobias Burnus  <tobias@codesourcery.com>

	PR other/67300
	* common.opt (-foffload=): Update description.
	(-foffload-options=): New.
	* doc/invoke.texi (C Language Options): Document
	-foffload and -foffload-options.
	* gcc.c (check_offload_target_name): New, split off from
	handle_foffload_option.
	(check_foffload_target_names): New.
	(handle_foffload_option): Handle -foffload=default.
	(driver_handle_option): Update for -foffload-options.
	* lto-opts.c (lto_write_options): Use -foffload-options
	instead of -foffload.
	* lto-wrapper.c (merge_and_complain, append_offload_options):
	Likewise.
	* opts.c (common_handle_option): Likewise.

2021-06-29  Tobias Burnus  <tobias@codesourcery.com>

	* doc/invoke.texi (C Language Options): Sort options
	alphabetically in optlist and also the description itself.
	Remove leftover -fallow-single-precision from and add missing
	-fgnu-tm to the optlist.

2021-06-29  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (slpg_vertex::visited): Remove.
	(vect_slp_perms_eq): Handle -1 permutes.
	(vect_optimize_slp): Rewrite permute propagation.

2021-06-29  Jakub Jelinek  <jakub@redhat.com>

	PR c++/101210
	* match.pd ((intptr_t)x eq/ne CST to x eq/ne (typeof x) CST): Don't
	perform the optimization in GENERIC when sanitizing and x has a
	reference type.

2021-06-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101242
	* tree-vect-slp.c (vect_slp_build_vertices): Force-add
	PHIs with not represented initial values as leafs.

2021-06-29  Jan-Benedict Glaw  <jbglaw@getslash.de>

	* config/pdp11/pdp11.h (ASM_OUTPUT_SKIP): Fix signedness warning.
	* config/pdp11/pdp11.c (pdp11_asm_print_operand_punct_valid_p): Remove
	"register" keyword.
	(pdp11_initial_elimination_offset) Remove unused variable.
	(pdp11_cmp_length) Ditto.
	(pdp11_insn_cost): Ditto, and fix signedness warning.

2021-06-29  David Edelsohn  <dje.gcc@gmail.com>

	* btfout.c: Include tm_p.h.
	* ctfout.c: Same.

2021-06-28  Indu Bhagat  <indu.bhagat@oracle.com>

	* config/bpf/bpf.c (bpf_expand_prologue): Do not mark insns as
	frame related.
	(bpf_expand_epilogue): Likewise.
	* config/bpf/bpf.h (DWARF2_FRAME_INFO): Define to 0.
	Do not define DBX_DEBUGGING_INFO.

2021-06-28  Indu Bhagat  <indu.bhagat@oracle.com>

	* doc/invoke.texi: Document the CTF and BTF debug info options.

2021-06-28  Indu Bhagat  <indu.bhagat@oracle.com>
	    David Faust  <david.faust@oracle.com>
	    Jose E. Marchesi  <jose.marchesi@oracle.com>
	    Weimin Pan  <weimin.pan@oracle.com>

	* Makefile.in: Add ctfc.*, ctfout.c and btfout.c files to
	GTFILES.  Add new object files.
	* common.opt: Add CTF and BTF debug info options.
	* btfout.c: New file.
	* ctfc.c: Likewise.
	* ctfc.h: Likewise.
	* ctfout.c: Likewise.
	* dwarf2ctf.c: Likewise.
	* dwarf2ctf.h: Likewise.
	* dwarf2cfi.c (dwarf2out_do_frame): Acknowledge CTF_DEBUG and
	BTF_DEBUG.
	* dwarf2out.c (dwarf2out_source_line): Likewise.
	(dwarf2out_finish): Skip emitting DWARF if CTF or BTF are to
	be generated.
	(debug_format_do_cu): New function.
	(dwarf2out_early_finish): Traverse DIEs and emit CTF/BTF for
	them if	requested.
	Include dwarf2ctf.c.
	* final.c (dwarf2_debug_info_emitted_p): Acknowledge DWARF-based debug
	formats.
	* flag-types.h (enum debug_info_type): Add CTF_DEBUG and BTF_DEBUG.
	(CTF_DEBUG): New bitmask.
	(BTF_DEBUG): Likewise.
	(enum ctf_debug_info_levels): New enum.
	* gengtype.c (open_base_files): Handle ctfc.h.
	(main): Handle uint32_t type.
	* flags.h (btf_debuginfo_p): New definition.
	(dwarf_based_debuginfo_p): Likewise.
	* opts.c (debug_type_names): Add entries for CTF and BTF.
	(btf_debuginfo_p): New function.
	(dwarf_based_debuginfo_p): Likewise.
	(common_handle_option): Handle -gctfN and -gbtf options.
	(set_debug_level): Set CTF_DEBUG, BTF_DEBUG whenever appropriate.
	* toplev.c (process_options): Inform the user and ignore -gctfLEVEL if
	frontend is not C.

2021-06-28  Jose E. Marchesi  <jose.marchesi@oracle.com>

	* dwarf2out.c (AT_class): Function is no longer static.
	(AT_int): Likewise.
	(AT_unsigned): Likewise.
	(AT_loc): Likewise.
	(get_AT): Likewise.
	(get_AT_string): Likewise.
	(get_AT_flag): Likewise.
	(get_AT_unsigned): Likewise.
	(get_AT_ref): Likewise.
	(new_die_raw): Likewise.
	(lookup_decl_die): Likewise.
	(base_type_die): Likewise.
	(add_name_attribute): Likewise.
	(add_AT_int): Likewise.
	(add_AT_unsigned): Likewise.
	(add_AT_loc): Likewise.
	(dw_get_die_tag): New function.
	(dw_get_die_child): Likewise.
	(dw_get_die_sib): Likewise.
	(struct dwarf_file_data): Move from here to dwarf2out.h
	(struct dw_attr_struct): Likewise.
	* dwarf2out.h: Analogous changes.

2021-06-28  Martin Jambor  <mjambor@suse.cz>

	PR ipa/93385
	* ipa-param-manipulation.h (class ipa_param_body_adjustments): New
	members m_dead_stmts and m_dead_ssas.
	* ipa-param-manipulation.c
	(ipa_param_body_adjustments::mark_dead_statements): New function.
	(ipa_param_body_adjustments::common_initialization): Call it on
	all removed but not split parameters.
	(ipa_param_body_adjustments::ipa_param_body_adjustments): Initialize
	new mwmbers.
	(ipa_param_body_adjustments::modify_call_stmt): Remove arguments that
	are dead.
	* tree-inline.c (remap_gimple_stmt): Do not copy dead statements, reset
	dead debug statements.
	(copy_phis_for_bb): Do not copy dead PHI nodes.

2021-06-28  Martin Jambor  <mjambor@suse.cz>

	PR ipa/93385
	* symtab-clones.h (clone_info): Removed member param_adjustments.
	* ipa-param-manipulation.h: Adjust initial comment to reflect how we
	deal with pass-through splits now.
	(ipa_param_performed_split): Removed.
	(ipa_param_adjustments::modify_call): Adjusted parameters.
	(class ipa_param_body_adjustments): Adjusted parameters of
	register_replacement, modify_gimple_stmt and modify_call_stmt.
	(ipa_verify_edge_has_no_modifications): Declare.
	(ipa_edge_modifications_finalize): Declare.
	* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Remove
	performed_splits processing, pas only edge to padjs->modify_call,
	check that call arguments were not modified if they should not have
	been.
	* cgraphclones.c (cgraph_node::create_clone): Do not copy performed
	splits.
	* ipa-param-manipulation.c (struct pass_through_split_map): New type.
	(ipa_edge_modification_info): Likewise.
	(ipa_edge_modification_sum): Likewise.
	(ipa_edge_modifications): New edge summary.
	(ipa_verify_edge_has_no_modifications): New function.
	(transitive_split_p): Removed.
	(transitive_split_map): Likewise.
	(init_transitive_splits): Likewise.
	(ipa_param_adjustments::modify_call): Adjusted to use the new edge
	summary instead of performed_splits.
	(ipa_param_body_adjustments::register_replacement): Drop dummy
	parameter, set base_index of the created ipa_param_body_replacement.
	(phi_arg_will_live_p): New function.
	(ipa_param_body_adjustments::common_initialization): Do not create
	IPA_SRA dummy decls.
	(simple_tree_swap_info): Removed.
	(remap_split_decl_to_dummy): Likewise.
	(record_argument_state_1): New function.
	(record_argument_state): Likewise.
	(ipa_param_body_adjustments::modify_call_stmt): New parameter
	orig_stmt.  Do not work with dummy decls, save necessary info about
	changes to ipa_edge_modifications.
	(ipa_param_body_adjustments::modify_gimple_stmt): New parameter
	orig_stmt, pass it to modify_call_stmt.
	(ipa_param_body_adjustments::modify_cfun_body): Adjust call to
	modify_gimple_stmt.
	(ipa_edge_modifications_finalize): New function.
	* tree-inline.c (remap_gimple_stmt): Pass original statement to
	modify_gimple_stmt.
	(copy_phis_for_bb): Do not copy dead PHI nodes.
	(expand_call_inline): Do not remap performed_splits.
	(update_clone_info): Likewise.
	* toplev.c: Include ipa-param-manipulation.h.
	(toplev::finalize): Call ipa_edge_modifications_finalize.

2021-06-28  Andrew Pinski  <apinski@marvell.com>

	* tree-ssa-phiopt.c (replace_phi_edge_with_variable): Duplicate range
	info if we're the only things setting the target PHI.
	(value_replacement): Don't duplicate range here.
	(minmax_replacement): Likewise.

2021-06-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101229
	* gimple-walk.c (gimple_walk_op): Handle PHIs.

2021-06-28  Martin Liska  <mliska@suse.cz>

	* config/v850/v850.c (construct_dispose_instruction): Allocate
	a bigger buffer.
	(construct_prepare_instruction): Likewise.

2021-06-28  Martin Liska  <mliska@suse.cz>

	* config/v850/v850.c (v850_option_override): Build default
	target node.
	(v850_can_inline_p): New.  Allow MASK_PROLOG_FUNCTION to be
	ignored for inlining.
	(TARGET_CAN_INLINE_P): New.

2021-06-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101207
	* tree-vect-slp.c (vect_optimize_slp): Do BB reduction
	permute eliding for load permutations properly.

2021-06-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101173
	* gimple-loop-interchange.cc
	(tree_loop_interchange::valid_data_dependences): Disallow outer
	loop dependence distance of zero.

2021-06-28  liuhongt  <hongtao.liu@intel.com>

	PR target/100648
	* config/i386/sse.md (*avx_cmp<mode>3_lt): New
	define_insn_and_split.
	(*avx_cmp<mode>3_ltint): Ditto.
	(*avx2_pcmp<mode>3_3): Ditto.
	(*avx2_pcmp<mode>3_4): Ditto.
	(*avx2_pcmp<mode>3_5): Ditto.

2021-06-28  liuhongt  <hongtao.liu@intel.com>

	* config/i386/i386-builtin.def (IX86_BUILTIN_BLENDVPD256,
	IX86_BUILTIN_BLENDVPS256, IX86_BUILTIN_PBLENDVB256,
	IX86_BUILTIN_BLENDVPD, IX86_BUILTIN_BLENDVPS,
	IX86_BUILTIN_PBLENDVB128): Replace icode with
	CODE_FOR_nothing.
	* config/i386/i386.c (ix86_gimple_fold_builtin): Fold blendv
	builtins.
	* config/i386/sse.md (*<sse4_1_avx2>_pblendvb_lt_subreg_not):
	New pre_reload splitter.

2021-06-27  Andrew Pinski  <apinski@marvell.com>

	PR middle-end/101230
	* fold-const.c (fold_ternary_loc): Check
	the return value of invert_tree_comparison.

2021-06-27  David Edelsohn  <dje.gcc@gmail.com>

	* config.gcc: Add SPDX License Identifier.
	(powerpc-ibm-aix789): Default to aix73.h.
	(powerpc-ibm-aix7.2.*.*): New stanza.
	* config/rs6000/aix72.h: Add SPDX License Identifier.
	* config/rs6000/aix73.h: New file.

2021-06-26  Jason Merrill  <jason@redhat.com>

	* except.c: #include "dwarf2.h" instead of "dwarf2out.h".

2021-06-26  Andrew Pinski  <apinski@marvell.com>

	* genmatch.c (lower_cond): Copy for_subst_vec
	for the simplify also.
	(lower): Swap the order for lower_for and lower_cond.

2021-06-26  Andrew Pinski  <apinski@marvell.com>

	* tree-ssa-phiopt.c (match_simplify_replacement): Reset
	flow senatitive info on the moved ssa set.

2021-06-26  Andrew Pinski  <apinski@marvell.com>

	* fold-const.c (fold_cond_expr_with_comparison):
	Exand arg0 into comp_code, arg00, and arg01.
	(fold_ternary_loc): Use invert_tree_comparison
	instead of fold_invert_truthvalue for the case
	where we have A CMP B ? C : A.

2021-06-25  Martin Sebor  <msebor@redhat.com>

	PR middle-end/101216
	* calls.c (maybe_warn_rdwr_sizes): Use the no_warning constant.

2021-06-25  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/h8300.c (select_cc_mode): Handle ASHIFTRT and LSHIFTRT.

2021-06-25  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101202
	* tree-vect-slp.c (vect_optimize_slp): Explicitely handle
	failed nodes.

2021-06-25  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp-patterns.c (addsub_pattern::build): Copy
	STMT_VINFO_REDUC_DEF from the original representative.

2021-06-25  Martin Sebor  <msebor@redhat.com>

	* builtins.c (warn_string_no_nul): Replace uses of TREE_NO_WARNING,
	gimple_no_warning_p and gimple_set_no_warning with
	warning_suppressed_p, and suppress_warning.
	(c_strlen): Same.
	(maybe_warn_for_bound): Same.
	(warn_for_access): Same.
	(check_access): Same.
	(expand_builtin_strncmp): Same.
	(fold_builtin_varargs): Same.
	* calls.c (maybe_warn_nonstring_arg): Same.
	(maybe_warn_rdwr_sizes): Same.
	* cfgexpand.c (expand_call_stmt): Same.
	* cgraphunit.c (check_global_declaration): Same.
	* fold-const.c (fold_undefer_overflow_warnings): Same.
	(fold_truth_not_expr): Same.
	(fold_unary_loc): Same.
	(fold_checksum_tree): Same.
	* gimple-array-bounds.cc (array_bounds_checker::check_array_ref): Same.
	(array_bounds_checker::check_mem_ref): Same.
	(array_bounds_checker::check_addr_expr): Same.
	(array_bounds_checker::check_array_bounds): Same.
	* gimple-expr.c (copy_var_decl): Same.
	* gimple-fold.c (gimple_fold_builtin_strcpy): Same.
	(gimple_fold_builtin_strncat): Same.
	(gimple_fold_builtin_stxcpy_chk): Same.
	(gimple_fold_builtin_stpcpy): Same.
	(gimple_fold_builtin_sprintf): Same.
	(fold_stmt_1): Same.
	* gimple-ssa-isolate-paths.c (diag_returned_locals): Same.
	* gimple-ssa-nonnull-compare.c (do_warn_nonnull_compare): Same.
	* gimple-ssa-sprintf.c (handle_printf_call): Same.
	* gimple-ssa-store-merging.c (imm_store_chain_info::output_merged_store): Same.
	* gimple-ssa-warn-restrict.c (maybe_diag_overlap): Same.
	* gimple-ssa-warn-restrict.h: Adjust declarations.
	(maybe_diag_access_bounds): Replace uses of TREE_NO_WARNING,
	gimple_no_warning_p and gimple_set_no_warning with
	warning_suppressed_p, and suppress_warning.
	(check_call): Same.
	(check_bounds_or_overlap): Same.
	* gimple.c (gimple_build_call_from_tree): Same.
	* gimplify.c (gimplify_return_expr): Same.
	(gimplify_cond_expr): Same.
	(gimplify_modify_expr_complex_part): Same.
	(gimplify_modify_expr): Same.
	(gimple_push_cleanup): Same.
	(gimplify_expr): Same.
	* omp-expand.c (expand_omp_for_generic): Same.
	(expand_omp_taskloop_for_outer): Same.
	* omp-low.c (lower_rec_input_clauses): Same.
	(lower_lastprivate_clauses): Same.
	(lower_send_clauses): Same.
	(lower_omp_target): Same.
	* tree-cfg.c (pass_warn_function_return::execute): Same.
	* tree-complex.c (create_one_component_var): Same.
	* tree-inline.c (remap_gimple_op_r): Same.
	(copy_tree_body_r): Same.
	(declare_return_variable): Same.
	(expand_call_inline): Same.
	* tree-nested.c (lookup_field_for_decl): Same.
	* tree-sra.c (create_access_replacement): Same.
	(generate_subtree_copies): Same.
	* tree-ssa-ccp.c (pass_post_ipa_warn::execute): Same.
	* tree-ssa-forwprop.c (combine_cond_expr_cond): Same.
	* tree-ssa-loop-ch.c (ch_base::copy_headers): Same.
	* tree-ssa-loop-im.c (execute_sm): Same.
	* tree-ssa-phiopt.c (cond_store_replacement): Same.
	* tree-ssa-strlen.c (maybe_warn_overflow): Same.
	(handle_builtin_strcpy): Same.
	(maybe_diag_stxncpy_trunc): Same.
	(handle_builtin_stxncpy_strncat): Same.
	(handle_builtin_strcat): Same.
	* tree-ssa-uninit.c (get_no_uninit_warning): Same.
	(set_no_uninit_warning): Same.
	(uninit_undefined_value_p): Same.
	(warn_uninit): Same.
	(maybe_warn_operand): Same.
	* tree-vrp.c (compare_values_warnv): Same.
	* vr-values.c (vr_values::extract_range_for_var_from_comparison_expr): Same.
	(test_for_singularity): Same.
	* gimple.h (warning_suppressed_p): New function.
	(suppress_warning): Same.
	(copy_no_warning): Same.
	(gimple_set_block): Call gimple_set_location.
	(gimple_set_location): Call copy_warning.

2021-06-25  Martin Sebor  <msebor@redhat.com>

	* tree.h (warning_suppressed_at, copy_warning,
	warning_suppressed_p, suppress_warning): New functions.

2021-06-25  Martin Sebor  <msebor@redhat.com>

	* Makefile.in (OBJS-libcommon): Add diagnostic-spec.o.
	* gengtype.c (open_base_files): Add diagnostic-spec.h.
	* diagnostic-spec.c: New file.
	* diagnostic-spec.h: New file.
	* tree.h (no_warning, all_warnings, suppress_warning_at): New
	declarations.
	* warning-control.cc: New file.

2021-06-25  liuhongt  <hongtao.liu@intel.com>

	PR target/101185
	* config/i386/i386.c (x86_order_regs_for_local_alloc):
	Revert r12-1669.

2021-06-24  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/101189
	* gimple-range-fold.cc (fold_using_range::range_of_range_op): Pass
	LHS range of condition to postfold routine.
	(fold_using_range::postfold_gcond_edges): Only process the TRUE or
	FALSE edge if the LHS range supports it being taken.
	* gimple-range-fold.h (postfold_gcond_edges): Add range parameter.

2021-06-24  Andrew MacLeod  <amacleod@redhat.com>

	* value-relation.cc (equiv_oracle::dump): Do not dump NULL blocks.
	(relation_oracle::find_relation_block): Check correct bitmap.
	(relation_oracle::dump): Do not dump NULL blocks.

2021-06-24  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (ranger_cache::propagate_cache): Call
	range_on_edge instead of manually calculating.

2021-06-24  Andrew MacLeod  <amacleod@redhat.com>

	* range-op.cc: Fix comment.

2021-06-24  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/89021
	* config/i386/i386-expand.c (ix86_expand_sse_unpack):
	Handle V8QI and V4HI modes.
	* config/i386/mmx.md (sse4_1_<any_extend:code>v4qiv4hi2):
	New insn pattern.
	(sse4_1_<any_extend:code>v4qiv4hi2): Ditto.
	(mmxpackmode): New mode attribute.
	(vec_pack_trunc_<mmxpackmode:mode>): New expander.
	(mmxunpackmode): New mode attribute.
	(vec_unpacks_lo_<mmxunpackmode:mode>): New expander.
	(vec_unpacks_hi_<mmxunpackmode:mode>): Ditto.
	(vec_unpacku_lo_<mmxunpackmode:mode>): Ditto.
	(vec_unpacku_hi_<mmxunpackmode:mode>): Ditto.
	* config/i386/i386.md (extsuffix): Move from ...
	* config/i386/sse.md: ... here.

2021-06-24  Eric Botcazou  <ebotcazou@adacore.com>

	* dwarf2out.c (dwarf2out_assembly_start): Emit .file 0 marker here..
	(dwarf2out_finish): ...instead of here.

2021-06-24  Eric Botcazou  <ebotcazou@adacore.com>

	* configure.ac (--gdwarf-5 option): Use objdump instead of readelf.
	(working --gdwarf-4/--gdwarf-5 for all sources): Likewise.
	(--gdwarf-4 not refusing generated .debug_line): Adjust for Windows.
	* configure: Regenerate.

2021-06-24  Richard Biener  <rguenther@suse.de>

	* config/i386/sse.md (vec_addsubv4df3, vec_addsubv2df3,
	vec_addsubv8sf3, vec_addsubv4sf3): Merge into ...
	(vec_addsub<mode>3): ... using a new addsub_cst mode attribute.

2021-06-24  Richard Biener  <rguenther@suse.de>

	* config/i386/sse.md (avx_addsubv4df3): Rename to
	vec_addsubv4df3.
	(avx_addsubv8sf3): Rename to vec_addsubv8sf3.
	(sse3_addsubv2df3): Rename to vec_addsubv2df3.
	(sse3_addsubv4sf3): Rename to vec_addsubv4sf3.
	* config/i386/i386-builtin.def: Adjust.
	* internal-fn.def (VEC_ADDSUB): New internal optab fn.
	* optabs.def (vec_addsub_optab): New optab.
	* tree-vect-slp-patterns.c (class addsub_pattern): New.
	(slp_patterns): Add addsub_pattern.
	* tree-vect-slp.c (vect_optimize_slp): Disable propagation
	across CFN_VEC_ADDSUB.
	* tree-vectorizer.h (vect_pattern::vect_pattern): Make
	m_ops optional.
	* doc/md.texi (vec_addsub<mode>3): Document.

2021-06-24  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/101170
	* df-scan.c (df_ref_record): For paradoxical big-endian SUBREGs
	where regno + subreg_regno_offset wraps around use 0 as starting
	regno.

2021-06-24  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/101172
	* stor-layout.c (finish_bitfield_representative): If nextf has
	error_mark_node type, set repr type to error_mark_node too.

2021-06-24  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/s390.c (s390_function_profiler): Ignore labelno
	parameter.
	* config/s390/s390.h (NO_PROFILE_COUNTERS): Define.

2021-06-24  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (vect_optimize_slp): Do not propagate
	across operations that have different semantics on different
	lanes.

2021-06-24  Jakub Jelinek  <jakub@redhat.com>

	* tree.h (OMP_CLAUSE_MAP_IN_REDUCTION): Document meaning for OpenMP.
	* gimplify.c (gimplify_scan_omp_clauses): For OpenMP map clauses
	with OMP_CLAUSE_MAP_IN_REDUCTION flag partially defer gimplification
	of non-decl OMP_CLAUSE_DECL.  For OMP_CLAUSE_IN_REDUCTION on
	OMP_TARGET user outer_ctx instead of ctx for placeholders and
	initializer/combiner gimplification.
	* omp-low.c (scan_sharing_clauses): Handle OMP_CLAUSE_MAP_IN_REDUCTION
	on target constructs.
	(lower_rec_input_clauses): Likewise.
	(lower_omp_target): Likewise.
	* omp-expand.c (expand_omp_target): Temporarily ignore nowait clause
	on target if in_reduction is present.

2021-06-24  Kewen Lin  <linkw@linux.ibm.com>

	* tree-predcom.c (class pcom_worker): New class.
	(release_chain): Renamed to...
	(pcom_worker::release_chain): ...this.
	(release_chains): Renamed to...
	(pcom_worker::release_chains): ...this.
	(aff_combination_dr_offset): Renamed to...
	(pcom_worker::aff_combination_dr_offset): ...this.
	(determine_offset): Renamed to...
	(pcom_worker::determine_offset): ...this.
	(class comp_ptrs): New class.
	(split_data_refs_to_components): Renamed to...
	(pcom_worker::split_data_refs_to_components): ...this,
	and update with class comp_ptrs.
	(suitable_component_p): Renamed to...
	(pcom_worker::suitable_component_p): ...this.
	(filter_suitable_components): Renamed to...
	(pcom_worker::filter_suitable_components): ...this.
	(valid_initializer_p): Renamed to...
	(pcom_worker::valid_initializer_p): ...this.
	(find_looparound_phi): Renamed to...
	(pcom_worker::find_looparound_phi): ...this.
	(add_looparound_copies): Renamed to...
	(pcom_worker::add_looparound_copies): ...this.
	(determine_roots_comp): Renamed to...
	(pcom_worker::determine_roots_comp): ...this.
	(determine_roots): Renamed to...
	(pcom_worker::determine_roots): ...this.
	(single_nonlooparound_use): Renamed to...
	(pcom_worker::single_nonlooparound_use): ...this.
	(remove_stmt): Renamed to...
	(pcom_worker::remove_stmt): ...this.
	(execute_pred_commoning_chain): Renamed to...
	(pcom_worker::execute_pred_commoning_chain): ...this.
	(execute_pred_commoning): Renamed to...
	(pcom_worker::execute_pred_commoning): ...this.
	(struct epcc_data): New member worker.
	(execute_pred_commoning_cbck): Call execute_pred_commoning
	with pcom_worker pointer.
	(find_use_stmt): Renamed to...
	(pcom_worker::find_use_stmt): ...this.
	(find_associative_operation_root): Renamed to...
	(pcom_worker::find_associative_operation_root): ...this.
	(find_common_use_stmt): Renamed to...
	(pcom_worker::find_common_use_stmt): ...this.
	(combinable_refs_p): Renamed to...
	(pcom_worker::combinable_refs_p): ...this.
	(reassociate_to_the_same_stmt): Renamed to...
	(pcom_worker::reassociate_to_the_same_stmt): ...this.
	(stmt_combining_refs): Renamed to...
	(pcom_worker::stmt_combining_refs): ...this.
	(combine_chains): Renamed to...
	(pcom_worker::combine_chains): ...this.
	(try_combine_chains): Renamed to...
	(pcom_worker::try_combine_chains): ...this.
	(prepare_initializers_chain): Renamed to...
	(pcom_worker::prepare_initializers_chain): ...this.
	(prepare_initializers): Renamed to...
	(pcom_worker::prepare_initializers): ...this.
	(prepare_finalizers_chain): Renamed to...
	(pcom_worker::prepare_finalizers_chain): ...this.
	(prepare_finalizers): Renamed to...
	(pcom_worker::prepare_finalizers): ...this.
	(tree_predictive_commoning_loop): Renamed to...
	(pcom_worker::tree_predictive_commoning_loop): ...this, adjust
	some calls and remove some cleanup code.
	(tree_predictive_commoning): Adjusted to use pcom_worker instance.
	(static variable looparound_phis): Remove.
	(static variable name_expansions): Remove.

2021-06-24  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (slpg_vertex): New struct.
	(vect_slp_build_vertices): Adjust.
	(vect_optimize_slp): Likewise.  Maintain an outgoing permute
	and a materialized one.

2021-06-24  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101105
	* tree-vect-data-refs.c (vect_prune_runtime_alias_test_list):
	Only ignore steps when they are equal or scalar order is preserved.

2021-06-24  liuhongt  <hongtao.liu@intel.com>

	PR target/98434
	* config/i386/i386-expand.c (ix86_expand_vec_interleave):
	Adjust comments for ix86_expand_vecop_qihi2.
	(ix86_expand_vecmul_qihi): Renamed to ..
	(ix86_expand_vecop_qihi2): Adjust function prototype to
	support shift operation, add static to definition.
	(ix86_expand_vec_shift_qihi_constant): Add static to definition.
	(ix86_expand_vecop_qihi): Call ix86_expand_vecop_qihi2 and
	ix86_expand_vec_shift_qihi_constant.
	* config/i386/i386-protos.h (ix86_expand_vecmul_qihi): Deleted.
	(ix86_expand_vec_shift_qihi_constant): Deleted.
	* config/i386/sse.md (VI12_256_512_AVX512VL): New mode
	iterator.
	(mulv8qi3): Call ix86_expand_vecop_qihi directly, add
	condition TARGET_64BIT.
	(mul<mode>3): Ditto.
	(<insn><mode>3): Ditto.
	(vlshr<mode>3): Extend to support avx512 vlshr.
	(v<insn><mode>3): New expander for
	vashr/vlshr/vashl.
	(v<insn>v8qi3): Ditto.
	(vashrv8hi3<mask_name>): Renamed to ..
	(vashr<mode>3): And extend to support V16QImode for avx512.
	(vashrv16qi3): Deleted.
	(vashrv2di3<mask_name>): Extend expander to support avx512
	instruction.

2021-06-23  Dimitar Dimitrov  <dimitar@dinux.eu>

	* doc/lto.texi (Design Overview): Update that slim objects are
	the default.

2021-06-23  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/rs6000-cpus.def: Take OPTION_MASK_PCREL_OPT out
	of OTHER_POWER10_MASKS so it will not be enabled by default.

2021-06-23  Richard Biener  <rguenther@suse.de>
	    Martin Jambor  <mjambor@suse.cz>

	* tree-inline.c (setup_one_parameter): Set TREE_READONLY of the
	param replacement unconditionally.  Adjust comment.

2021-06-23  Andrew MacLeod  <amacleod@redhat.com>

	* Makefile.in (OBJS): Add gimple-range-fold.o
	* gimple-range-fold.cc: New.
	* gimple-range-fold.h: New.
	* gimple-range-gori.cc (gimple_range_calc_op1): Move to here.
	(gimple_range_calc_op2): Ditto.
	* gimple-range-gori.h: Move prototypes to here.
	* gimple-range.cc: Adjust include files.
	(fur_source:fur_source): Relocate to gimple-range-fold.cc.
	(fur_source::get_operand): Ditto.
	(fur_source::get_phi_operand): Ditto.
	(fur_source::query_relation): Ditto.
	(fur_source::register_relation): Ditto.
	(class fur_edge): Ditto.
	(fur_edge::fur_edge): Ditto.
	(fur_edge::get_operand): Ditto.
	(fur_edge::get_phi_operand): Ditto.
	(fur_stmt::fur_stmt): Ditto.
	(fur_stmt::get_operand): Ditto.
	(fur_stmt::get_phi_operand): Ditto.
	(fur_stmt::query_relation): Ditto.
	(class fur_depend): Relocate to gimple-range-fold.h.
	(fur_depend::fur_depend): Relocate to gimple-range-fold.cc.
	(fur_depend::register_relation): Ditto.
	(fur_depend::register_relation): Ditto.
	(class fur_list): Ditto.
	(fur_list::fur_list): Ditto.
	(fur_list::get_operand): Ditto.
	(fur_list::get_phi_operand): Ditto.
	(fold_range): Ditto.
	(adjust_pointer_diff_expr): Ditto.
	(gimple_range_adjustment): Ditto.
	(gimple_range_base_of_assignment): Ditto.
	(gimple_range_operand1): Ditto.
	(gimple_range_operand2): Ditto.
	(gimple_range_calc_op1): Relocate to gimple-range-gori.cc.
	(gimple_range_calc_op2): Ditto.
	(fold_using_range::fold_stmt): Relocate to gimple-range-fold.cc.
	(fold_using_range::range_of_range_op): Ditto.
	(fold_using_range::range_of_address): Ditto.
	(fold_using_range::range_of_phi): Ditto.
	(fold_using_range::range_of_call): Ditto.
	(fold_using_range::range_of_builtin_ubsan_call): Ditto.
	(fold_using_range::range_of_builtin_call): Ditto.
	(fold_using_range::range_of_cond_expr): Ditto.
	(fold_using_range::range_of_ssa_name_with_loop_info): Ditto.
	(fold_using_range::relation_fold_and_or): Ditto.
	(fold_using_range::postfold_gcond_edges): Ditto.
	* gimple-range.h: Add gimple-range-fold.h to include files. Change
	GIMPLE_RANGE_STMT_H to GIMPLE_RANGE_H.
	(gimple_range_handler): Relocate to gimple-range-fold.h.
	(gimple_range_ssa_p): Ditto.
	(range_compatible_p): Ditto.
	(class fur_source): Ditto.
	(class fur_stmt): Ditto.
	(class fold_using_range): Ditto.
	(gimple_range_calc_op1): Relocate to gimple-range-gori.h
	(gimple_range_calc_op2): Ditto.

2021-06-23  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/101148
	PR tree-optimization/101014
	* gimple-range-cache.cc (ranger_cache::ranger_cache): Adjust.
	(ranger_cache::~ranger_cache): Adjust.
	(ranger_cache::block_range): Check if propagation disallowed.
	(ranger_cache::propagate_cache): Disallow propagation if new value
	can't be stored properly.
	* gimple-range-cache.h (ranger_cache::m_propfail): New member.

2021-06-23  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (class ssa_block_ranges): Adjust prototype.
	(sbr_vector::set_bb_range): Return true.
	(class sbr_sparse_bitmap): Adjust.
	(sbr_sparse_bitmap::set_bb_range): Return value.
	(block_range_cache::set_bb_range): Return value.
	(ranger_cache::propagate_cache): Use return value to print msg.
	* gimple-range-cache.h (class block_range_cache): Adjust.

2021-06-23  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range.cc (dump_bb): Use range_on_edge from the cache.

2021-06-23  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/logical.md (<code><mode>3<ccnz>): Use <cczn>
	so this pattern can be used for test/compare removal.  Pass
	current insn to compute_logical_op_length and output_logical_op.
	* config/h8300/h8300.c (compute_logical_op_cc): Remove.
	(h8300_and_costs): Add argument to compute_logical_op_length.
	(output_logical_op): Add new argument.  Use it to determine if the
	condition codes are used and adjust the output accordingly.
	(compute_logical_op_length): Add new argument and update length
	computations when condition codes are used.
	* config/h8300/h8300-protos.h (compute_logical_op_length): Update
	prototype.
	(output_logical_op): Likewise.

2021-06-23  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/89021
	* config/i386/i386-expand.c (expand_vec_perm_pshufb):
	Handle 64bit modes for TARGET_XOP.  Use indirect gen_* functions.
	* config/i386/mmx.md (mmx_ppermv64): New insn pattern.
	* config/i386/i386.md (unspec): Move UNSPEC_XOP_PERMUTE from ...
	* config/i386/sse.md (unspec): ... here.

2021-06-23  Martin Liska  <mliska@suse.cz>

	PR target/98636
	* optc-save-gen.awk: Put back arm_fp16_format to
	checked_options.

2021-06-23  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/101175
	* config/i386/i386.md (bsr_rex64): Add zero-flag setting RTX.
	(bsr): Ditto.
	(*bsrhi): Remove.
	(clz<mode>2): Update RTX pattern for additions.

2021-06-23  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/101167
	* omp-low.c (lower_omp_regimplify_p): Regimplify also PARM_DECLs
	and RESULT_DECLs that have DECL_HAS_VALUE_EXPR_P set.

2021-06-22  Sergei Trofimovich  <siarheit@google.com>

	* doc/rtl.texi: drop unbalanced parenthesis.

2021-06-22  Richard Biener  <rguenther@suse.de>

	PR middle-end/101156
	* gimplify.c (gimplify_expr): Remove premature incorrect
	optimization.

2021-06-22  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/101159
	* tree-vect-patterns.c (vect_recog_popcount_pattern): Fix some
	comment typos.

2021-06-22  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/101160
	* function.c (assign_parms): For decl_result with TYPE_EMPTY_P type
	clear crtl->return_rtx instead of keeping it referencing a pseudo.

2021-06-22  Jakub Jelinek  <jakub@redhat.com>
	    Andrew Pinski  <apinski@marvell.com>

	PR tree-optimization/101162
	* fold-const.c (range_check_type): Handle OFFSET_TYPE like pointer
	types.

2021-06-22  Andrew MacLeod  <amacleod@redhat.com>

	* range-op.cc (range_relational_tests): New.
	(range_op_tests): Call range_relational_tests.

2021-06-22  Andrew MacLeod  <amacleod@redhat.com>

	* range-op.cc (operator_cast::lhs_op1_relation): New.
	(operator_identity::lhs_op1_relation): Mew.

2021-06-22  Andrew MacLeod  <amacleod@redhat.com>

	* range-op.cc (operator_minus::op1_op2_relation_effect): New.

2021-06-22  Andrew MacLeod  <amacleod@redhat.com>

	* range-op.cc (operator_plus::lhs_op1_relation): New.
	(operator_plus::lhs_op2_relation): New.

2021-06-22  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (ranger_cache::ranger_cache): Create a
	relation_oracle if dominators exist.
	(ranger_cache::~ranger_cache): Dispose of oracle.
	(ranger_cache::dump_bb): Dump oracle.
	* gimple-range.cc (fur_source::fur_source): New.
	(fur_source::get_operand): Use mmeber query.
	(fur_source::get_phi_operand): Use member_query.
	(fur_source::query_relation): New.
	(fur_source::register_dependency): Delete.
	(fur_source::register_relation): New.
	(fur_edge::fur_edge): Adjust.
	(fur_edge::get_phi_operand): Fix comment.
	(fur_edge::query): Delete.
	(fur_stmt::fur_stmt): Adjust.
	(fur_stmt::query): Delete.
	(fur_depend::fur_depend): Adjust.
	(fur_depend::register_relation): New.
	(fur_depend::register_relation): New.
	(fur_list::fur_list): Adjust.
	(fur_list::get_operand): Use member query.
	(fold_using_range::range_of_range_op): Process and query relations.
	(fold_using_range::range_of_address): Adjust dependency call.
	(fold_using_range::range_of_phi): Ditto.
	(gimple_ranger::gimple_ranger): New.  Use ranger_ache oracle.
	(fold_using_range::relation_fold_and_or): New.
	(fold_using_range::postfold_gcond_edges): New.
	* gimple-range.h (class gimple_ranger): Adjust.
	(class fur_source): Adjust members.
	(class fur_stmt): Ditto.
	(class fold_using_range): Ditto.

2021-06-22  Andrew MacLeod  <amacleod@redhat.com>

	* range-op.cc (range_operator::wi_fold): Apply relation effect.
	(range_operator::fold_range): Adjust and apply relation effect.
	(*::fold_range): Add relation parameters.
	(*::op1_range): Ditto.
	(*::op2_range): Ditto.
	(range_operator::lhs_op1_relation): New.
	(range_operator::lhs_op2_relation): New.
	(range_operator::op1_op2_relation): New.
	(range_operator::op1_op2_relation_effect): New.
	(relop_early_resolve): New.
	(operator_equal::op1_op2_relation): New.
	(operator_equal::fold_range): Call relop_early_resolve.
	(operator_not_equal::op1_op2_relation): New.
	(operator_not_equal::fold_range): Call relop_early_resolve.
	(operator_lt::op1_op2_relation): New.
	(operator_lt::fold_range): Call relop_early_resolve.
	(operator_le::op1_op2_relation): New.
	(operator_le::fold_range): Call relop_early_resolve.
	(operator_gt::op1_op2_relation): New.
	(operator_gt::fold_range): Call relop_early_resolve.
	(operator_ge::op1_op2_relation): New.
	(operator_ge::fold_range): Call relop_early_resolve.
	* range-op.h (class range_operator): Adjust parameters and methods.

2021-06-22  Andrew MacLeod  <amacleod@redhat.com>

	* Makefile.in (OBJS): Add value-relation.o.
	* gimple-range.h: Adjust include files.
	* tree-data-ref.c: Adjust include file order.
	* value-query.cc (range_query::get_value_range): Default to no oracle.
	(range_query::query_relation): New.
	(range_query::query_relation): New.
	* value-query.h (class range_query): Adjust.
	* value-relation.cc: New.
	* value-relation.h: New.

2021-06-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101151
	* tree-ssa-sink.c (statement_sink_location): Expand irreducible
	region check.

2021-06-22  Jojo R  <rjiejie@linux.alibaba.com>

	* config/riscv/riscv.c (thead_c906_tune_info): New.
	(riscv_tune_info_table): Use new tune.

2021-06-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101158
	* tree-vect-slp.c (vect_build_slp_tree_1): Move same operand
	checking after checking for matching operation.

2021-06-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101159
	* tree-vect-patterns.c (vect_recog_popcount_pattern): Add
	missing NULL vectype check.

2021-06-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101154
	* tree-vect-slp.c (vect_build_slp_tree_2): Fix out-of-bound access.

2021-06-22  Jakub Jelinek  <jakub@redhat.com>

	PR target/11877
	* config/i386/i386-protos.h (ix86_last_zero_store_uid): Declare.
	* config/i386/i386-expand.c (ix86_last_zero_store_uid): New variable.
	* config/i386/i386.c (ix86_expand_prologue): Clear it.
	* config/i386/i386.md (peephole2s for 1/2/4 stores of const0_rtx):
	Remove "" from match_operand.  Emit new insns using emit_move_insn and
	set ix86_last_zero_store_uid to INSN_UID of the last store.
	Add peephole2s for 1/2/4 stores of const0_rtx following previous
	successful peep2s.

2021-06-22  Martin Liska  <mliska@suse.cz>

	* auto-profile.c (AUTO_PROFILE_VERSION): Bump as string format
	was changed.

2021-06-22  Martin Liska  <mliska@suse.cz>

	* gcov-io.h: Remove padding entries.

2021-06-22  liuhongt  <hongtao.liu@intel.com>

	PR tree-optimization/97770
	* tree-vect-patterns.c (vect_recog_popcount_pattern):
	New.
	(vect_recog_func vect_vect_recog_func_ptrs): Add new pattern.

2021-06-22  liuhongt  <hongtao.liu@intel.com>

	PR target/100267
	* config/i386/i386-builtin.def (BDESC): Adjust builtin name.
	* config/i386/sse.md (<avx512>_expand<mode>_mask): Rename to ..
	(expand<mode>_mask): this ..
	(*expand<mode>_mask): New pre_reload splitter to transform
	v{,p}expand* to vmov* when mask is zero, all ones, or has all
	ones in it's lower part, otherwise still generate
	v{,p}expand*.

2021-06-22  liuhongt  <hongtao.liu@intel.com>

	PR target/100310
	* config/i386/i386-expand.c
	(ix86_expand_special_args_builtin): Keep constm1_operand only
	if it satisfies insn's operand predicate.

2021-06-21  Jason Merrill  <jason@redhat.com>

	PR target/88529
	* df-scan.c (df_ref_record): Check that regno < endregno.
	* function.c (assign_parms, expand_function_end): Do nothing with a
	TYPE_EMPTY_P result.

2021-06-21  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101120
	* tree-vect-data-refs.c (bump_vector_ptr): Fold the
	built increment.
	* tree-vect-slp.c (vect_transform_slp_perm_load): Add
	DR chain DCE capability.
	* tree-vectorizer.h (vect_transform_slp_perm_load): Adjust.
	* tree-vect-stmts.c (vectorizable_load): Remove unused
	loads in the DR chain for SLP.

2021-06-21  Jakub Jelinek  <jakub@redhat.com>

	PR inline-asm/100785
	* gimplify.c (gimplify_asm_expr): Don't diagnose errors if
	output or input operands were already error_mark_node.
	* cfgexpand.c (expand_asm_stmt): If errors are emitted,
	remove all inputs, outputs and clobbers from the asm and
	set template to "".

2021-06-21  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>

	* config/arm/arm_neon.h (vceq_s8): Replace builtin with __a == __b.
	(vceq_s16): Likewise.
	(vceq_s32): Likewise.
	(vceq_u8): Likewise.
	(vceq_u16): Likewise.
	(vceq_u32): Likewise.
	(vceq_p8): Likewise.
	(vceqq_s8): Likewise.
	(vceqq_s16): Likewise.
	(vceqq_s32): Likewise.
	(vceqq_u8): Likewise.
	(vceqq_u16): Likewise.
	(vceqq_u32): Likewise.
	(vceqq_p8): Likewise.
	(vceq_f32): Gate __a == __b on __FAST_MATH__.
	(vceqq_f32): Likewise.
	(vceq_f16): Likewise.
	(vceqq_f16): Likewise.

2021-06-21  prathamesh.kulkarni  <prathamesh.kulkarni@linaro.org>

	PR target/97906
	* config/arm/iterators.md (NEON_VACMP): Remove.
	* config/arm/neon.md (neon_vca<cmp_op><mode>): Use GLTE instead of GTGE
	iterator.
	(neon_vca<cmp_op><mode>_insn): Likewise.
	(neon_vca<cmp_op_unsp><mode>_insn_unspec): Use NEON_VAGLTE instead of
	NEON_VACMP.

2021-06-21  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101121
	* tree-vect-slp.c (vect_build_slp_tree_2): To not fail fatally
	when we just lack a stmt with the desired op when doing permutation.
	(vect_build_slp_tree): When caching a failed SLP build attempt
	assert that at least one lane is marked as not matching.

2021-06-21  liuhongt  <hongtao.liu@intel.com>

	PR target/101142
	* config/i386/i386.md: (*anddi_1): Disparage slightly the mask
	register alternative.
	(*and<mode>_1): Ditto.
	(*andqi_1): Ditto.
	(*andn<mode>_1): Ditto.
	(*<code><mode>_1): Ditto.
	(*<code>qi_1): Ditto.
	(*one_cmpl<mode>2_1): Ditto.
	(*one_cmplsi2_1_zext): Ditto.
	(*one_cmplqi2_1): Ditto.
	* config/i386/i386.c (x86_order_regs_for_local_alloc): Change
	the order of mask registers to be before general registers.

2021-06-21  Roger Sayle  <roger@nextmovesoftware.com>

	PR target/11877
	* config/i386/i386.md: New define_peephole2s to shrink writing
	1, 2 or 4 consecutive zeros to memory when optimizing for size.

2021-06-18  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/h8300.c (h8300_select_cc_mode): Handle SYMBOL_REF.
	* config/h8300/logical.md (<code><mode>3 logcial expander): Generate
	more efficient code when the source can be trivially simplified.

2021-06-18  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (ranger_cache::range_of_def):  Calculate
	a range if global is not available.
	(ranger_cache::entry_range): Fallback to range_of_def.
	* gimple-range-cache.h (range_of_def): Adjust prototype.

2021-06-18  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/101014
	* gimple-range-cache.cc (ranger_cache::ranger_cache): Remove poor
	value list.
	(ranger_cache::~ranger_cache): Ditto.
	(ranger_cache::enable_new_values): Delete.
	(ranger_cache::push_poor_value): Delete.
	(ranger_cache::range_of_def): Remove poor value processing.
	(ranger_cache::entry_range): Ditto.
	(ranger_cache::fill_block_cache): Ditto.
	* gimple-range-cache.h (class ranger_cache): Remove poor value members.
	* gimple-range.cc (gimple_ranger::range_of_expr): Remove call.
	* gimple-range.h (class gimple_ranger): Adjust.

2021-06-18  Srinath Parvathaneni  <srinath.parvathaneni@arm.com>

	PR target/100856
	* common/config/arm/arm-common.c (arm_canon_arch_option_1): New function
	derived from arm_canon_arch.
	(arm_canon_arch_option): Call it.
	(arm_canon_arch_multilib_option): New function.
	* config/arm/arm-cpus.in (IGNORE_FOR_MULTILIB): New fgroup.
	* config/arm/arm.h (arm_canon_arch_multilib_option): New prototype.
	(CANON_ARCH_MULTILIB_SPEC_FUNCTION): New macro.
	(MULTILIB_ARCH_CANONICAL_SPECS): New macro.
	(DRIVER_SELF_SPECS): Add MULTILIB_ARCH_CANONICAL_SPECS.
	* config/arm/arm.opt (mlibarch): New option.
	* config/arm/t-rmprofile (MULTILIB_MATCHES): For armv8*-m, replace use
	of march on RHS with mlibarch.

2021-06-18  Marcel Vollweiler  <marcel@codesourcery.com>

	* config.in: Regenerate.
	* config/gcn/gcn.c (print_operand_address): Fix for global_load assembler
	functions.
	* configure: Regenerate.
	* configure.ac: Fix for global_load assembler functions.

2021-06-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101112
	* tree-vect-slp.c (vect_slp_linearize_chain): Fix condition
	to lookup a pattern stmt def.

2021-06-18  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/101062
	* stor-layout.c (finish_bitfield_layout): Don't add bitfield
	representatives in QUAL_UNION_TYPE.

2021-06-18  Andrew Pinski  <apinski@marvell.com>

	* tree-ssa-phiopt.c (replace_phi_edge_with_variable):
	Add counting of how many times it is done.
	(factor_out_conditional_conversion): Likewise.
	(match_simplify_replacement): Likewise.
	(value_replacement): Likewise.
	(spaceship_replacement): Likewise.
	(cond_store_replacement): Likewise.
	(cond_if_else_store_replacement_1): Likewise.
	(hoist_adjacent_loads): Likewise.

2021-06-18  Andrew Pinski  <apinski@marvell.com>

	* tree-cfg.c (verify_gimple_assign_unary): Reject point and offset
	types on NEGATE_EXPR, ABS_EXPR, BIT_NOT_EXPR, PAREN_EXPR and CNONJ_EXPR.
	(verify_gimple_assign_binary): Reject point and offset types on
	MULT_EXPR, MULT_HIGHPART_EXPR, TRUNC_DIV_EXPR, CEIL_DIV_EXPR,
	FLOOR_DIV_EXPR, ROUND_DIV_EXPR, TRUNC_MOD_EXPR, CEIL_MOD_EXPR,
	FLOOR_MOD_EXPR, ROUND_MOD_EXPR, RDIV_EXPR, and EXACT_DIV_EXPR.

2021-06-18  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/rs6000.c (rs6000_emit_minmax): Add support for ISA
	3.1 IEEE 128-bit floating point xsmaxcqp/xsmincqp instructions.
	* config/rs6000/rs6000.md (s<minmax><mode>3, IEEE128 iterator):
	New insns.

2021-06-17  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/genfusion.pl (gen_logical_addsubf): Add
	earlyclobber to alts 0/1.
	(gen_addadd): Add earlyclobber to alts 0/1.
	* config/rs6000/fusion.md: Regenerate file.

2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* cfgloopanal.c (get_loop_hot_path): Make path an auto_vec.

2021-06-17  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc: Comment cleanups.
	* gimple-range-gori.cc: Comment cleanups.
	* gimple-range.cc: Comment/spacing cleanups
	* value-range.h: Comment cleanups.

2021-06-17  H.J. Lu  <hjl.tools@gmail.com>

	PR target/100704
	* calls.c (expand_call): Replace PUSH_ARGS with
	targetm.calls.push_argument (0).
	(emit_library_call_value_1): Likewise.
	* defaults.h (PUSH_ARGS): Removed.
	(PUSH_ARGS_REVERSED): Replace PUSH_ARGS with
	targetm.calls.push_argument (0).
	* expr.c (block_move_libcall_safe_for_call_parm): Likewise.
	(emit_push_insn): Pass the number bytes to push to
	targetm.calls.push_argument and pass 0 if ARGS_ADDR is 0.
	* hooks.c (hook_bool_uint_true): New.
	* hooks.h (hook_bool_uint_true): Likewise.
	* rtlanal.c (nonzero_bits1): Replace PUSH_ARGS with
	targetm.calls.push_argument (0).
	* target.def (push_argument): Add a targetm.calls hook.
	* targhooks.c (default_push_argument): New.
	* targhooks.h (default_push_argument): Likewise.
	* config/bpf/bpf.h (PUSH_ARGS): Removed.
	* config/cr16/cr16.c (TARGET_PUSH_ARGUMENT): New.
	* config/cr16/cr16.h (PUSH_ARGS): Removed.
	* config/i386/i386.c (ix86_push_argument): New.
	(TARGET_PUSH_ARGUMENT): Likewise.
	* config/i386/i386.h (PUSH_ARGS): Removed.
	* config/m32c/m32c.c (TARGET_PUSH_ARGUMENT): New.
	* config/m32c/m32c.h (PUSH_ARGS): Removed.
	* config/nios2/nios2.h (PUSH_ARGS): Likewise.
	* config/pru/pru.h (PUSH_ARGS): Likewise.
	* doc/tm.texi.in: Remove PUSH_ARGS documentation.  Add
	TARGET_PUSH_ARGUMENT hook.
	* doc/tm.texi: Regenerated.

2021-06-17  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/97194
	* config/i386/i386-expand.c (expand_vector_set_var):
	Handle V2FS mode remapping.  Pass TARGET_MMX_WITH_SSE to
	ix86_expand_vector_init_duplicate.
	(ix86_expand_vector_init_duplicate): Emit insv_1 for
	QImode for !TARGET_PARTIAL_REG_STALL.
	* config/i386/predicates.md (vec_setm_mmx_operand): New predicate.
	* config/i386/mmx.md (vec_setv2sf): Use vec_setm_mmx_operand
	as operand 2 predicate.  Call ix86_expand_vector_set_var
	for non-constant index operand.
	(vec_setv2si): Ditto.
	(vec_setv4hi): Ditto.
	(vec_setv8qi): ditto.

2021-06-17  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/100790
	* gimple-range.cc (range_of_builtin_call): Cleanup clz and ctz
	code.

2021-06-17  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Use consistently -O1 instead of -O.

2021-06-17  Martin Liska  <mliska@suse.cz>

	* gcov-io.h: Update documentation entry about string format.

2021-06-17  Marius Hillenbrand  <mhillen@linux.ibm.com>

	PR target/100871
	* config/s390/vecintrin.h (vec_doublee): Fix to use
	  __builtin_s390_vflls.
	(vec_floate): Fix to use __builtin_s390_vflrd.

2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* dominance.c (get_dominated_to_depth): Return auto_vec<basic_block>.
	* dominance.h (get_dominated_to_depth): Likewise.
	(get_all_dominated_blocks): Likewise.
	* cfgcleanup.c (delete_unreachable_blocks): Adjust.
	* gcse.c (hoist_code): Likewise.
	* tree-cfg.c (remove_edge_and_dominated_blocks): Likewise.
	* tree-parloops.c (oacc_entry_exit_ok): Likewise.
	* tree-ssa-dce.c (eliminate_unnecessary_stmts): Likewise.
	* tree-ssa-phiprop.c (pass_phiprop::execute): Likewise.

2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* dominance.c (get_dominated_by_region): Return auto_vec<basic_block>.
	* dominance.h (get_dominated_by_region): Likewise.
	* tree-cfg.c (gimple_duplicate_sese_region): Adjust.
	(gimple_duplicate_sese_tail): Likewise.
	(move_sese_region_to_fn): Likewise.

2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* dominance.c (get_dominated_by): Return auto_vec<basic_block>.
	* dominance.h (get_dominated_by): Likewise.
	* auto-profile.c (afdo_find_equiv_class): Adjust.
	* cfgloopmanip.c (duplicate_loop_to_header_edge): Likewise.
	* loop-unroll.c (unroll_loop_runtime_iterations): Likewise.
	* tree-cfg.c (test_linear_chain): Likewise.
	(test_diamond): Likewise.

2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* cfgloop.h (get_loop_hot_path): Return auto_vec<basic_block>.
	* cfgloopanal.c (get_loop_hot_path): Likewise.
	* tree-ssa-loop-ivcanon.c (tree_estimate_loop_size): Likewise.

2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* cgraph.c (cgraph_node::collect_callers): Return
	auto_vec<cgraph_edge *>.
	* cgraph.h (cgraph_node::collect_callers): Likewise.
	* ipa-cp.c (create_specialized_node): Adjust.
	(decide_about_value): Likewise.
	(decide_whether_version_node): Likewise.
	* ipa-sra.c (process_isra_node_results): Likewise.

2021-06-17  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* vec.h (vl_ptr>::using_auto_storage): Handle null m_vec.
	(auto_vec<T, 0>::auto_vec): Define move constructor, and delete copy
	constructor.
	(auto_vec<T, 0>::operator=): Define move assignment and delete copy
	assignment.

2021-06-17  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range.cc (debug_seed_ranger): New.
	(dump_ranger): New.
	(debug_ranger): New.

2021-06-17  Richard Biener   <rguenther@suse.de>

	PR tree-optimization/54400
	* tree-vectorizer.h (enum slp_instance_kind): Add
	slp_inst_kind_bb_reduc.
	(reduction_fn_for_scalar_code): Declare.
	* tree-vect-data-refs.c (vect_slp_analyze_instance_dependence):
	Check SLP_INSTANCE_KIND instead of looking at the
	representative.
	(vect_slp_analyze_instance_alignment): Likewise.
	* tree-vect-loop.c (reduction_fn_for_scalar_code): Export.
	* tree-vect-slp.c (vect_slp_linearize_chain): Split out
	chain linearization from vect_build_slp_tree_2 and generalize
	for the use of BB reduction vectorization.
	(vect_build_slp_tree_2): Adjust accordingly.
	(vect_optimize_slp): Elide permutes at the root of BB reduction
	instances.
	(vectorizable_bb_reduc_epilogue): New function.
	(vect_slp_prune_covered_roots): Likewise.
	(vect_slp_analyze_operations): Use them.
	(vect_slp_check_for_constructors): Recognize associatable
	chains for BB reduction vectorization.
	(vectorize_slp_instance_root_stmt): Generate code for the
	BB reduction epilogue.

2021-06-17  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-gori.cc (gori_compute::has_edge_range_p): Check with
	may_recompute_p.
	(gori_compute::may_recompute_p): New.
	(gori_compute::outgoing_edge_range_p): Perform recomputations.
	* gimple-range-gori.h (class gori_compute): Add prototype.

2021-06-17  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (ranger_cache::range_on_edge): Always return
	true when a range can be calculated.
	* gimple-range.cc (gimple_ranger::dump_bb): Check has_edge_range_p.

2021-06-16  Martin Sebor  <msebor@redhat.com>

	* doc/invoke.texi (-Wmismatched-dealloc, -Wmismatched-new-delete):
	Correct documented defaults.

2021-06-16  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (ranger_cache::ranger_cache): Initialize
	m_new_value_p directly.

2021-06-16  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/89021
	* config/i386/i386-expand.c (expand_vec_perm_2perm_pblendv):
	Handle 64bit modes for TARGET_SSE4_1.
	(expand_vec_perm_pshufb2): Handle 64bit modes for TARGET_SSSE3.
	(expand_vec_perm_even_odd_pack): Handle V4HI mode.
	(expand_vec_perm_even_odd_1) <case E_V4HImode>: Expand via
	expand_vec_perm_pshufb2 for TARGET_SSSE3 and via
	expand_vec_perm_even_odd_pack for TARGET_SSE4_1.
	* config/i386/mmx.md (mmx_packusdw): New insn pattern.

2021-06-16  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_<sur><addsub>hn<mode>):
	Change to an expander that emits the correct instruction
	depending on endianness.
	(aarch64_<sur><addsub>hn<mode>_insn_le): Define.
	(aarch64_<sur><addsub>hn<mode>_insn_be): Define.

2021-06-16  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Split generator
	for aarch64_<su>qmovn builtins into scalar and vector
	variants.
	* config/aarch64/aarch64-simd.md (aarch64_<su>qmovn<mode>_insn_le):
	Define.
	(aarch64_<su>qmovn<mode>_insn_be): Define.
	(aarch64_<su>qmovn<mode>): Split into scalar and vector
	variants. Change vector variant to an expander that emits the
	correct instruction depending on endianness.

2021-06-16  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Split generator
	for aarch64_sqmovun builtins into scalar and vector variants.
	* config/aarch64/aarch64-simd.md (aarch64_sqmovun<mode>):
	Split into scalar and vector variants. Change vector variant
	to an expander that emits the correct instruction depending
	on endianness.
	(aarch64_sqmovun<mode>_insn_le): Define.
	(aarch64_sqmovun<mode>_insn_be): Define.

2021-06-16  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_xtn<mode>_insn_le):
	Define - modeling zero-high-half semantics.
	(aarch64_xtn<mode>): Change to an expander that emits the
	appropriate instruction depending on endianness.
	(aarch64_xtn<mode>_insn_be): Define - modeling zero-high-half
	semantics.
	(aarch64_xtn2<mode>_le): Rename to...
	(aarch64_xtn2<mode>_insn_le): This.
	(aarch64_xtn2<mode>_be): Rename to...
	(aarch64_xtn2<mode>_insn_be): This.
	(vec_pack_trunc_<mode>): Emit truncation instruction instead
	of aarch64_xtn.
	* config/aarch64/iterators.md (Vnarrowd): Add Vnarrowd mode
	attribute iterator.

2021-06-16  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/100453
	* tree-sra.c (create_access): Disqualify any const candidates
	which are written to.
	(sra_modify_expr): Do not store sub-replacements back to a const base.
	(handle_unscalarized_data_in_subtree): Likewise.
	(sra_modify_assign): Likewise.  Earlier, use TREE_READONLy test
	instead of constant_decl_p.

2021-06-16  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/101062
	* stor-layout.c (finish_bitfield_representative): For fields in unions
	assume nextf is always NULL.
	(finish_bitfield_layout): Compute bit field representatives also in
	unions, but handle it as if each bitfield was the only field in the
	aggregate.

2021-06-16  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101088
	* tree-ssa-loop-im.c (sm_seq_valid_bb): Only look for
	supported refs on edges.  Do not assert same ref but
	different kind stores are unsuported but mark them so.
	(hoist_memory_references): Only look for supported refs
	on exits.

2021-06-16  Roger Sayle  <roger@nextmovesoftware.com>

	PR rtl-optimization/46235
	* config/i386/i386.md: New define_split for bt followed by cmov.
	(*bt<mode>_setcqi): New define_insn_and_split for bt followed by setc.
	(*bt<mode>_setncqi): New define_insn_and_split for bt then setnc.
	(*bt<mode>_setnc<mode>): New define_insn_and_split for bt followed
	by setnc with zero extension.

2021-06-16  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101083
	* tree-vect-slp.c (vect_slp_build_two_operator_nodes): Get
	vectype as argument.
	(vect_build_slp_tree_2): Adjust.

2021-06-15  Martin Sebor  <msebor@redhat.com>

	PR middle-end/100876
	* builtins.c: (gimple_call_return_array): Account for size_t
	mangling as either unsigned int or unsigned long

2021-06-15  Jeff Law  <jeffreyalaw@gmail.com>

	* compare-elim.c (try_eliminate_compare): Run DCE to clean things
	up before eliminating comparisons.

2021-06-15  Aldy Hernandez  <aldyh@redhat.com>

	* range-op.cc (operator_bitwise_or::wi_fold): Make sure
	nonzero|X is nonzero.
	(range_op_bitwise_and_tests): Add tests for above.

2021-06-15  Carl Love  <cel@us.ibm.com>

	PR target/101022
	* config/rs6000/rs6000-builtin.def (VCMPEQUT): Fix the ICODE for the
	enum definition.
	(VRLQ, VSLQ, VSRQ, VSRAQ): Remove unused BU_P10_OVERLOAD_2
	definitions.

2021-06-15  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92568
	* gimplify.c (enum gimplify_defaultmap_kind): Add GDMK_SCALAR_TARGET.
	(struct gimplify_omp_ctx): Extend defaultmap array by one.
	(new_omp_context): Init defaultmap[GDMK_SCALAR_TARGET].
	(omp_notice_variable): Update type classification for Fortran.
	(gimplify_scan_omp_clauses): Update calls for new argument; handle
	GDMK_SCALAR_TARGET; for Fortran, GDMK_POINTER avoid GOVD_MAP_0LEN_ARRAY.
	* langhooks-def.h (lhd_omp_scalar_p): Add 'ptr_ok' argument.
	* langhooks.c (lhd_omp_scalar_p): Likewise.
	(LANG_HOOKS_OMP_ALLOCATABLE_P, LANG_HOOKS_OMP_SCALAR_TARGET_P): New.
	(LANG_HOOKS_DECLS): Add them.
	* langhooks.h (struct lang_hooks_for_decls): Add new hooks, update
	omp_scalar_p pointer type to include the new bool argument.

2021-06-15  David Malcolm  <dmalcolm@redhat.com>

	* doc/analyzer.texi
	(Special Functions for Debugging the Analyzer): Add
	__analyzer_dump_capacity.

2021-06-15  Jakub Jelinek  <jakub@redhat.com>

	PR target/101046
	* expr.c (expand_expr_real_2) <case VEC_PACK_FIX_TRUNC_EXPR,
	case VEC_PACK_TRUNC_EXPR>: Clear subtarget when changing mode.

2021-06-15  Richard Biener  <rguenther@suse.de>

	* cfgloopanal.c (mark_irreducible_loops): Use a dominance
	check to identify loop latches.
	* cfgloop.c (verify_loop_structure): Likewise.
	* loop-init.c (apply_loop_flags): Allow marked irreducible
	regions even with multiple latches.
	* predict.c (rebuild_frequencies): Simplify.

2021-06-15  Richard Biener  <rguenther@suse.de>

	* tree-ssa-threadupdate.c
	(jump_thread_path_registry::mark_threaded_blocks): Assert we
	have marked irreducible regions.

2021-06-14  Martin Sebor  <msebor@redhat.com>

	PR c++/100876
	* builtins.c (gimple_call_return_array): Check for attribute fn spec.
	Handle calls to placement new.
	(ndecl_dealloc_argno): Avoid placement delete.

2021-06-14  Peter Bergner  <bergner@linux.ibm.com>

	PR target/100777
	* config/rs6000/rs6000-call.c (rs6000_gimple_fold_mma_builtin): Use
	create_tmp_reg_or_ssa_name().

2021-06-14  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (ranger_cache::ranger_cache): Adjust.
	(ranger_cache::enable_new_values): Set to specified value and
	return the old value.
	(ranger_cache::disable_new_values): Delete.
	(ranger_cache::fill_block_cache): Disable non 1st order derived
	poor values.
	* gimple-range-cache.h (ranger_cache): Adjust prototypes.
	* gimple-range.cc (gimple_ranger::range_of_expr): Adjust.

2021-06-14  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/101058
	* config/i386/i386-expand.c (ix86_vectorize_vec_perm_const):
	Return true early when testing with V2HImode.
	* config/i386/mmx.md (*punpckwd): Split to sse2_pshuflw_1.

2021-06-14  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/mve.md (mve_vec_unpack<US>_lo_<mode>): New pattern.
	(mve_vec_unpack<US>_hi_<mode>): New pattern.
	(@mve_vec_pack_trunc_lo_<mode>): New pattern.
	(mve_vmovntq_<supf><mode>): Prefix with '@'.
	* config/arm/neon.md (vec_unpack<US>_hi_<mode>): Move to
	vec-common.md.
	(vec_unpack<US>_lo_<mode>): Likewise.
	(vec_pack_trunc_<mode>): Rename to
	neon_quad_vec_pack_trunc_<mode>.
	* config/arm/vec-common.md (vec_unpack<US>_hi_<mode>): New
	pattern.
	(vec_unpack<US>_lo_<mode>): New.
	(vec_pack_trunc_<mode>): New.

2021-06-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100934
	* tree-ssa-dom.c (pass_dominator::execute): Properly
	mark irreducible regions.

2021-06-14  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Put r{...} on the same line as @item.

2021-06-14  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Add missing newline.

2021-06-14  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Remove '+' charasters.

2021-06-14  Claudiu Zissulescu  <claziss@synopsys.com>

	* config.gcc (arc): Add support for with_cpu option.
	* config/arc/arc.h (OPTION_DEFAULT_SPECS): Add fpu.

2021-06-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101031
	* tree-ssa-strlen.c (maybe_invalidate): Increment max_size
	instead of size when accounting for a possibly string
	terminating nul.

2021-06-14  Martin Liska  <mliska@suse.cz>

	* gimple-ssa-evrp.c (pointer_equiv_analyzer::~pointer_equiv_analyzer): Use delete[].

2021-06-14  Aldy Hernandez  <aldyh@redhat.com>

	* value-query.cc (gimple_range_global): Call get_range_global
	if called after inlining.

2021-06-13  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/101021
	* config/i386/i386-expand.c (expand_vec_perm_pshufb):
	Emit constant permutation insn directly from here.

2021-06-13  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* attribs.c (find_attribute_namespace): Iterate over vec<> with
	range based for.
	* auto-profile.c (afdo_find_equiv_class): Likewise.
	* gcc.c (do_specs_vec): Likewise.
	(do_spec_1): Likewise.
	(driver::set_up_specs): Likewise.
	* gimple-loop-jam.c (any_access_function_variant_p): Likewise.
	* gimple-ssa-store-merging.c (compatible_load_p): Likewise.
	(imm_store_chain_info::try_coalesce_bswap): Likewise.
	(imm_store_chain_info::coalesce_immediate_stores): Likewise.
	(get_location_for_stmts): Likewise.
	* graphite-poly.c (print_iteration_domains): Likewise.
	(free_poly_bb): Likewise.
	(remove_gbbs_in_scop): Likewise.
	(free_scop): Likewise.
	(dump_gbb_cases): Likewise.
	(dump_gbb_conditions): Likewise.
	(print_pdrs): Likewise.
	(print_scop): Likewise.
	* ifcvt.c (cond_move_process_if_block): Likewise.
	* lower-subreg.c (decompose_multiword_subregs): Likewise.
	* regcprop.c (pass_cprop_hardreg::execute): Likewise.
	* sanopt.c (sanitize_rewrite_addressable_params): Likewise.
	* sel-sched-dump.c (dump_insn_vector): Likewise.
	* store-motion.c (store_ops_ok): Likewise.
	(store_killed_in_insn): Likewise.
	* timevar.c (timer::named_items::print): Likewise.
	* tree-cfgcleanup.c (cleanup_control_flow_pre): Likewise.
	(cleanup_tree_cfg_noloop): Likewise.
	* tree-data-ref.c (dump_data_references): Likewise.
	(print_dir_vectors): Likewise.
	(print_dist_vectors): Likewise.
	(dump_data_dependence_relations): Likewise.
	(dump_dist_dir_vectors): Likewise.
	(dump_ddrs): Likewise.
	(create_runtime_alias_checks): Likewise.
	(free_subscripts): Likewise.
	(save_dist_v): Likewise.
	(save_dir_v): Likewise.
	(invariant_access_functions): Likewise.
	(same_access_functions): Likewise.
	(access_functions_are_affine_or_constant_p): Likewise.
	(find_data_references_in_stmt): Likewise.
	(graphite_find_data_references_in_stmt): Likewise.
	(free_dependence_relations): Likewise.
	(free_data_refs): Likewise.
	* tree-inline.c (copy_debug_stmts): Likewise.
	* tree-into-ssa.c (dump_currdefs): Likewise.
	(rewrite_update_phi_arguments): Likewise.
	* tree-ssa-propagate.c (clean_up_loop_closed_phi): Likewise.
	* tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr):
	Likewise.
	(vect_slp_analyze_node_dependences): Likewise.
	(vect_slp_analyze_instance_dependence): Likewise.
	(vect_record_base_alignments): Likewise.
	(vect_get_peeling_costs_all_drs): Likewise.
	(vect_peeling_supportable): Likewise.
	* tree-vectorizer.c (vec_info::~vec_info): Likewise.
	(vec_info::free_stmt_vec_infos): Likewise.

2021-06-13  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/logical.md (<code>qi3_1<cczn>): New pattern.
	(andqi3_1<cczn>): Removed.
	(<ors>qi3_1): Do not split for IOR/XOR a single bit.
	(H8/SX bit logicals): Split out from other patterns.
	* config/h8300/multiply.md (mulqihi3_const<cczn>): Renamed from
	mulqihi3_const_clobber_flags.
	(mulqihi3<cczn>, mulhisi3_const<cczn>, mulhisi3<cczn>): Similarly

2021-06-13  H.J. Lu  <hjl.tools@gmail.com>

	PR target/101023
	* config/i386/i386.c (ix86_expand_prologue): Set red_zone_used
	to true if red zone is used.
	(ix86_output_indirect_jmp): Replace ix86_red_zone_size with
	ix86_red_zone_used.
	* config/i386/i386.h (machine_function): Add red_zone_used.
	(ix86_red_zone_size): Removed.
	(ix86_red_zone_used): New.
	* config/i386/i386.md (peephole2 patterns): Replace
	ix86_red_zone_size with ix86_red_zone_used.

2021-06-12  Jason Merrill  <jason@redhat.com>

	* doc/extend.texi (unused variable attribute): Applies to
	structure fields as well.

2021-06-12  Eugene Rozenfeld  <erozen@microsoft.com>

	* auto-profile.c (read_profile): fix a typo in an error string

2021-06-11  Thomas Schwinge  <thomas@codesourcery.com>

	* tree-pretty-print.h (dump_omp_clauses): Add 'bool = true'
	default argument.
	* tree-pretty-print.c (dump_omp_clauses): Update.
	(dump_generic_node) <OMP_CLAUSE>: Use it.

2021-06-11  Srinath Parvathaneni  <srinath.parvathaneni@arm.com>

	PR target/101016
	* config/arm/arm_mve.h (__arm_vld1q): Change __ARM_mve_coerce(p0,
	int8_t const *) to __ARM_mve_coerce1(p0, int8_t *) in the argument for
	the polymorphic variants matching code.
	(__arm_vld1q_z): Likewise.
	(__arm_vld2q): Likewise.
	(__arm_vld4q): Likewise.
	(__arm_vldrbq_gather_offset): Likewise.
	(__arm_vldrbq_gather_offset_z): Likewise.

2021-06-11  Roger Sayle  <roger@nextmovesoftware.com>

	PR tree-optimization/96392
	* fold-const.h (tree_expr_maybe_real_minus_zero_p): Fix prototype.

2021-06-11  Roger Sayle  <roger@nextmovesoftware.com>

	PR tree-optimization/96392
	* fold-const.c (fold_real_zero_addition_p): Take both arguments
	of the addition or subtraction, not just the zero.  Use this
	other argument in tests for signaling NaNs and signed zeros.
	(tree_expr_maybe_real_minus_zero_p): New predicate.
	* fold-const.h (fold_real_zero_addition_p): Update prototype.
	(tree_expr_maybe_real_minus_zero_p): New function prototype.
	* match.pd: Update calls to fold_real_zero_addition_p.
	Replace HONOR_NANS with tree_expr_maybe_nan_p.
	Replace HONOR_SIGNED_ZEROS with tree_expr_maybe_real_minus_zero_p.
	Replace HONOR_SNANS with tree_expr_maybe_signaling_nan_p.
	* tree-ssa-reassoc.c (eliminate_using_constants): Update
	call to fold_real_zero_addition_p.

2021-06-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101025
	* tree-ssa-loop-im.c (sm_seq_valid_bb): Make sure to process
	all refs that require dependence checking.

2021-06-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101028
	* tree-vect-slp.c (vect_build_slp_tree_2): When SLP
	reassoc discovery fails fatally, mark appropriate lanes
	in matches[] so.

2021-06-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101026
	* tree-vect-slp.c (vect_build_slp_tree_2): Make sure we
	have a representative for the associated chain nodes.

2021-06-11  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/101008
	* simplify-rtx.c (relational_result): New function.
	(simplify_logical_relational_operation,
	simplify_relational_operation): Use it.

2021-06-11  Jakub Jelinek  <jakub@redhat.com>

	PR target/101007
	* config/i386/sse.md (*vec_concat<mode>_0_1): Require TARGET_SSE2.

2021-06-11  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/101021
	* config/i386/i386-expand.c (expand_vec_perm_pshufb): Return
	false if the permutation can be implemented with constant
	permutation instruction in wider mode.
	(canonicalize_vector_int_perm): Move above expand_vec_perm_pshufb.
	Handle V8QImode and V4HImode.

2021-06-11  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/100788
	* common.opt: Add new option.
	* coverage.c (coverage_begin_function): Emit warning instead on
	the internal compiler error.
	* doc/invoke.texi: Document the option.
	* toplev.c (process_options): Enable it by default.

2021-06-11  Richard Biener  <rguenther@suse.de>

	PR middle-end/101009
	* tree-data-ref.c (build_classic_dist_vector_1): Make sure
	to set *init_b to true when we encounter a constant equal
	index pair.
	(compute_affine_dependence): Also dump the actual DR_REF.

2021-06-10  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/100984
	* gimple-ssa-evrp.c  (ssa_equiv_stack): Use auto_vec for
	replacements table.
	(ssa_equiv_stack::~ssa_equiv_stack): Remove.

2021-06-11  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/rs6000.md
	(floatsi<SFDF:mode>2_lfiwax_<QHI:mode>_mem_zext): New
	define_insn_and_split.

2021-06-11  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (vect_build_slp_tree_2): Use stablesort
	to sort operands of the associative chain.

2021-06-11  Richard Biener  <rguenther@suse.de>

	* system.h (gcc_stablesort_r): Declare.
	* sort.cc (gcc_sort_r): Support stable sort.
	(gcc_stablesort_r): Define.
	* vec.h (vec<>::stablesort): Add.

2021-06-10  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/89021
	* config/i386/i386-expand.c (ix86_split_mmx_punpck):
	Handle V2SF mode.  Emit SHUFPS to fixup unpack-high for V2SF mode.
	(expand_vec_perm_blend): Handle 64bit modes for TARGET_SSE4_1.
	(expand_vec_perm_pshufb): Handle 64bit modes for TARGET_SSSE3.
	(expand_vec_perm_pblendv): Handle 64bit modes for TARGET_SSE4_1.
	(expand_vec_perm_interleave2): Handle 64bit modes.
	(expand_vec_perm_even_odd_pack): Handle V8QI mode.
	(expand_vec_perm_even_odd_1): Ditto.
	(ix86_vectorize_vec_perm_const): Ditto.
	* config/i386/i386.md (UNSPEC_PSHUFB): Move from ...
	* config/i386/sse.md: ... here.
	* config/i386/mmx.md (*vec_interleave_lowv2sf):
	New insn_and_split pattern.
	(*vec_interleave_highv2sf): Ditto.
	(mmx_pshufbv8qi3): New insn pattern.
	(*mmx_pblendw): Ditto.

2021-06-10  Peter Bergner  <bergner@linux.ibm.com>

	* config/rs6000/rs6000-builtin.def (build_pair): New built-in.
	(build_acc): Likewise.
	* config/rs6000/rs6000-call.c (mma_expand_builtin): Swap assemble
	source operands in little-endian mode.
	(rs6000_gimple_fold_mma_builtin): Handle VSX_BUILTIN_BUILD_PAIR.
	(mma_init_builtins): Likewise.
	* config/rs6000/rs6000.c (rs6000_split_multireg_move): Handle endianness
	ordering for the MMA assemble and build source operands.
	* doc/extend.texi (__builtin_vsx_build_acc, __builtin_mma_build_pair):
	Document.
	(__builtin_mma_assemble_acc, __builtin_mma_assemble_pair): Remove
	documentation.

2021-06-10  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/h8300.c (select_cc_mode): Handle MEM.  Use
	REG_P.
	* config/h8300/extensions.md: Replace _clobber_flags patterns
	with <cczn>.

2021-06-10  Robin Dapp  <rdapp@linux.ibm.com>

	* config/s390/vector.md (vcond_mask_<mode><mode>): Change to
	(vcond_mask_<mode><tointvec>): this.

2021-06-10  Andrew Stubbs  <ams@codesourcery.com>
	    Thomas Schwinge  <thomas@codesourcery.com>

	* omp-builtins.def (BUILT_IN_GOACC_ENTER_EXIT_DATA): Split into...
	(BUILT_IN_GOACC_ENTER_DATA, BUILT_IN_GOACC_EXIT_DATA): ... these.
	* gimple.h (enum gf_mask): Split
	'GF_OMP_TARGET_KIND_OACC_ENTER_EXIT_DATA' into
	'GF_OMP_TARGET_KIND_OACC_ENTER_DATA' and
	'GF_OMP_TARGET_KIND_OACC_EXIT_DATA'.
	(is_gimple_omp_oacc): Update.
	* gimple-pretty-print.c (dump_gimple_omp_target): Likewise.
	* gimplify.c (gimplify_omp_target_update): Likewise.
	* omp-expand.c (expand_omp_target, build_omp_regions_1)
	(omp_make_gimple_edges): Likewise.
	* omp-low.c (check_omp_nesting_restrictions, lower_omp_target):
	Likewise.

2021-06-10  Aldy Hernandez  <aldyh@redhat.com>

	* value-query.cc (value_query::value_on_edge): Rename name to
	expr.
	(range_query::range_on_edge): Same.
	(range_query::value_of_expr): Same.
	(range_query::value_on_edge): Same.
	* value-query.h (class value_query): Same.
	(class range_query): Same.

2021-06-10  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101003
	* tree-vect-slp.c (vect_build_slp_tree_2): Appropriately
	use the pattern stmt defs when linearizing a chain.

2021-06-10  Jakub Jelinek  <jakub@redhat.com>

	PR debug/100852
	* ifcvt.c (noce_get_alt_condition, noce_try_abs): Use
	prev_nonnote_nondebug_insn instead of prev_nonnote_insn.

2021-06-10  Clement Chigot  <clement.chigot@atos.net>

	* config/rs6000/aix71.h (ASM_CPU_SPEC): Add Power10 directive.
	* config/rs6000/aix72.h (ASM_CPU_SPEC): Likewise.

2021-06-09  Andrew Pinski  <apinski@marvell.com>

	PR tree-optimization/100925
	* match.pd (a ? CST1 : CST2): Limit transformations
	that would produce a negative to integeral types only.
	Change !POINTER_TYPE_P to INTEGRAL_TYPE_P also.

2021-06-09  Jeff Law  <jeffreyalaw@gmail.com>

	Revert:
	2021-06-09  Jeff Law  <jeffreyalaw@gmail.com>

	* doc/tm.texi: Correctly update.

2021-06-09  Jeff Law  <jeffreyalaw@gmail.com>

	* doc/tm.texi: Correctly update.

2021-06-09  H.J. Lu  <hjl.tools@gmail.com>

	PR other/100735
	* doc/tm.texi.in (Trampolines): Add a missing blank line.

2021-06-09  Paul Eggert  <eggert@cs.ucla.edu>

	PR other/100735
	* doc/invoke.texi (Code Gen Options); Document that -fno-trampolines
	and -ftrampolines work only with Ada.
	* doc/tm.texi.in (Trampolines): Likewise.
	* doc/tm.texi: Regenerated.

2021-06-09  Carl Love  <cel@us.ibm.com>

	* config/rs6000/altivec.h (vec_signextll, vec_signexti, vec_signextq):
	Add define for new builtins.
	* config/rs6000/altivec.md(altivec_vreveti2): Add define_expand.
	* config/rs6000/rs6000-builtin.def (VSIGNEXTI, VSIGNEXTLL):  Add
	overloaded builtin definitions.
	(VSIGNEXTSB2W, VSIGNEXTSH2W, VSIGNEXTSB2D, VSIGNEXTSH2D,VSIGNEXTSW2D,
	VSIGNEXTSD2Q):	Add builtin expansions.
	(SIGNEXT): Add P10 overload definition.
	* config/rs6000/rs6000-call.c (P9V_BUILTIN_VEC_VSIGNEXTI, P9V_BUILTIN_VEC_VSIGNEXTLL,
	P10_BUILTIN_VEC_SIGNEXT): Add overloaded argument definitions.
	* config/rs6000/vsx.md (vsx_sign_extend_v2di_v1ti): Add define_insn.
	(vsignextend_v2di_v1ti, vsignextend_qi_<mode>, vsignextend_hi_<mode>,
	vsignextend_si_v2di)[VIlong]: Add define_expand.
	Make define_insn vsx_sign_extend_si_v2di visible.
	* doc/extend.texi:  Add documentation for the vec_signexti,
	vec_signextll builtins and vec_signextq.

2021-06-09  Carl Love  <cel@us.ibm.com>

	* config/rs6000/rs6000.c (__fixkfti, __fixunskfti, __floattikf,
	__floatuntikf): Names changed to __fixkfti_sw, __fixunskfti_sw,
	__floattikf_sw, __floatuntikf_sw respectively.
	* config/rs6000/rs6000.md (floatti<mode>2, floatunsti<mode>2,
	fix_trunc<mode>ti2, fixuns_trunc<mode>ti2): Add
	define_insn for mode IEEE 128.

2021-06-09  Carl Love  <cel@us.ibm.com>

	* config/rs6000/altivec.md (altivec_vslq, altivec_vsrq):
	Rename to altivec_vslq_<mode>, altivec_vsrq_<mode>, mode VEC_TI.
	* config/rs6000/vector.md (VEC_TI): Was named VSX_TI in vsx.md.
	(vashlv1ti3): Change to vashl<mode>3, mode VEC_TI.
	(vlshrv1ti3): Change to vlshr<mode>3, mode VEC_TI.
	* config/rs6000/vsx.md (VSX_TI): Remove define_mode_iterator. Update
	uses of VSX_TI to VEC_TI.

2021-06-09  Carl Love  <cel@us.ibm.com>

	* config/rs6000/dfp.md (floattitd2, fixtdti2): New define_insns.

2021-06-09  Carl Love  <cel@us.ibm.com>

	* config/rs6000/altivec.h (vec_dive, vec_mod): Add define for new
	builtins.
	* config/rs6000/altivec.md (UNSPEC_VMULEUD, UNSPEC_VMULESD,
	UNSPEC_VMULOUD, UNSPEC_VMULOSD): New unspecs.
	(altivec_eqv1ti, altivec_gtv1ti, altivec_gtuv1ti, altivec_vmuleud,
	altivec_vmuloud, altivec_vmulesd, altivec_vmulosd, altivec_vrlq,
	altivec_vrlqmi, altivec_vrlqmi_inst, altivec_vrlqnm,
	altivec_vrlqnm_inst, altivec_vslq, altivec_vsrq, altivec_vsraq,
	altivec_vcmpequt_p, altivec_vcmpgtst_p, altivec_vcmpgtut_p): New
	define_insn.
	(vec_widen_umult_even_v2di, vec_widen_smult_even_v2di,
	vec_widen_umult_odd_v2di, vec_widen_smult_odd_v2di, altivec_vrlqmi,
	altivec_vrlqnm): New define_expands.
	* config/rs6000/rs6000-builtin.def (VCMPEQUT_P, VCMPGTST_P,
	VCMPGTUT_P): Add macro expansions.
	(BU_P10V_AV_P): Add builtin predicate definition.
	(VCMPGTUT, VCMPGTST, VCMPEQUT, CMPNET, CMPGE_1TI,
	CMPGE_U1TI, CMPLE_1TI, CMPLE_U1TI, VNOR_V1TI_UNS, VNOR_V1TI, VCMPNET_P,
	VCMPAET_P, VMULEUD, VMULESD, VMULOUD, VMULOSD, VRLQ,
	VSLQ, VSRQ, VSRAQ, VRLQNM, DIV_V1TI, UDIV_V1TI, DIVES_V1TI, DIVEU_V1TI,
	MODS_V1TI, MODU_V1TI, VRLQMI): New macro expansions.
	(VRLQ, VSLQ, VSRQ, VSRAQ, DIVE, MOD): New overload expansions.
	* config/rs6000/rs6000-call.c (P10_BUILTIN_VCMPEQUT,
	P10V_BUILTIN_CMPGE_1TI, P10V_BUILTIN_CMPGE_U1TI,
	P10V_BUILTIN_VCMPGTUT, P10V_BUILTIN_VCMPGTST,
	P10V_BUILTIN_CMPLE_1TI, P10V_BUILTIN_VCMPLE_U1TI,
	P10V_BUILTIN_DIV_V1TI, P10V_BUILTIN_UDIV_V1TI,
	P10V_BUILTIN_VMULESD, P10V_BUILTIN_VMULEUD,
	P10V_BUILTIN_VMULOSD, P10V_BUILTIN_VMULOUD,
	P10V_BUILTIN_VNOR_V1TI, P10V_BUILTIN_VNOR_V1TI_UNS,
	P10V_BUILTIN_VRLQ, P10V_BUILTIN_VRLQMI,
	P10V_BUILTIN_VRLQNM, P10V_BUILTIN_VSLQ,
	P10V_BUILTIN_VSRQ, P10V_BUILTIN_VSRAQ,
	P10V_BUILTIN_VCMPGTUT_P, P10V_BUILTIN_VCMPGTST_P,
	P10V_BUILTIN_VCMPEQUT_P, P10V_BUILTIN_VCMPGTUT_P,
	P10V_BUILTIN_VCMPGTST_P, P10V_BUILTIN_CMPNET,
	P10V_BUILTIN_VCMPNET_P, P10V_BUILTIN_VCMPAET_P,
	P10V_BUILTIN_DIVES_V1TI, P10V_BUILTIN_MODS_V1TI,
	P10V_BUILTIN_MODU_V1TI):
	New overloaded definitions.
	(rs6000_gimple_fold_builtin) [P10V_BUILTIN_VCMPEQUT,
	P10V_BUILTIN_CMPNET, P10V_BUILTIN_CMPGE_1TI,
	P10V_BUILTIN_CMPGE_U1TI, P10V_BUILTIN_VCMPGTUT,
	P10V_BUILTIN_VCMPGTST, P10V_BUILTIN_CMPLE_1TI,
	P10V_BUILTIN_CMPLE_U1TI]: New case statements.
	(rs6000_init_builtins) [bool_V1TI_type_node, int_ftype_int_v1ti_v1ti]:
	New assignments.
	(altivec_init_builtins): New E_V1TImode case statement.
	(builtin_function_type)[P10_BUILTIN_128BIT_VMULEUD,
	P10_BUILTIN_128BIT_VMULOUD, P10_BUILTIN_128BIT_DIVEU_V1TI,
	P10_BUILTIN_128BIT_MODU_V1TI, P10_BUILTIN_CMPGE_U1TI,
	P10_BUILTIN_VCMPGTUT, P10_BUILTIN_VCMPEQUT]: New case statements.
	* config/rs6000/rs6000.c (rs6000_handle_altivec_attribute) [E_TImode,
	E_V1TImode]: New case statements.
	* config/rs6000/rs6000.h (rs6000_builtin_type_index): New enum
	value RS6000_BTI_bool_V1TI.
	* config/rs6000/vector.md (vector_gtv1ti,vector_nltv1ti,
	vector_gtuv1ti, vector_nltuv1ti, vector_ngtv1ti, vector_ngtuv1ti,
	vector_eq_v1ti_p, vector_ne_v1ti_p, vector_ae_v1ti_p,
	vector_gt_v1ti_p, vector_gtu_v1ti_p, vrotlv1ti3, vashlv1ti3,
	vlshrv1ti3, vashrv1ti3): New define_expands.
	* config/rs6000/vsx.md (UNSPEC_VSX_DIVSQ, UNSPEC_VSX_DIVUQ,
	UNSPEC_VSX_DIVESQ, UNSPEC_VSX_DIVEUQ, UNSPEC_VSX_MODSQ,
	UNSPEC_VSX_MODUQ): New unspecs.
	(mulv2di3, vsx_div_v1ti, vsx_udiv_v1ti, vsx_dives_v1ti,
	vsx_diveu_v1ti,	vsx_mods_v1ti, vsx_modu_v1ti, xxswapd_v1ti): New
	define_insns.
	(vcmpnet): New define_expand.
	* doc/extend.texi: Add documentation for the new builtins vec_rl,
	vec_rlmi, vec_rlnm, vec_sl, vec_sr, vec_sra, vec_mule, vec_mulo,
	vec_div, vec_dive, vec_mod, vec_cmpeq, vec_cmpne, vec_cmpgt, vec_cmplt,
	vec_cmpge, vec_cmple, vec_all_eq, vec_all_ne, vec_all_gt, vec_all_lt,
	vec_all_ge, vec_all_le, vec_any_eq, vec_any_ne, vec_any_gt, vec_any_lt,
	vec_any_ge, vec_any_le.

2021-06-09  Carl Love  <cel@us.ibm.com>

	* config/rs6000/altivec.md (altivec_vrl<VI_char>mi): Fix
	bug in argument generation.

2021-06-09  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/iterators.md (<supf>): Remove VCLZQ_U, VCLZQ_S.
	(VCLZQ): Remove.
	* config/arm/mve.md (mve_vclzq_<supf><mode>): Add '@' prefix,
	remove <supf> iterator.
	(mve_vclzq_u<mode>): New.
	* config/arm/neon.md (clz<mode>2): Rename to neon_vclz<mode>.
	(neon_vclz<mode): Move to ...
	* config/arm/unspecs.md (VCLZQ_U, VCLZQ_S): Remove.
	* config/arm/vec-common.md: ... here. Add support for MVE.

2021-06-09  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/mve.md (mve_vhaddq_<supf><mode>): Prefix with '@'.
	(@mve_vrhaddq_<supf><mode): Likewise.
	* config/arm/neon.md (neon_v<r>hadd<sup><mode>): Likewise.
	* config/arm/vec-common.md (avg<mode>3_floor, uavg<mode>3_floor)
	(avg<mode>3_ceil", uavg<mode>3_ceil): New patterns.

2021-06-09  imba-tjd  <109224573@qq.com>

	* doc/invoke.texi: Fix typo.

2021-06-09  Roger Sayle  <roger@nextmovesoftware.com>

	PR middle-end/53267
	* fold-const-call.c (fold_const_call_sss) [CASE_CFN_FMOD]:
	Support evaluation of fmod/fmodf/fmodl at compile-time.

2021-06-09  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100981
	* tree-vect-loop.c (vect_create_epilog_for_reduction): Use
	gimple_get_lhs to also handle calls.
	* tree-vect-slp-patterns.c (complex_pattern::build): Transfer
	reduction info.

2021-06-09  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/97832
	* tree-vectorizer.h (_slp_tree::failed): New.
	* tree-vect-slp.c (_slp_tree::_slp_tree): Initialize
	failed member.
	(_slp_tree::~_slp_tree): Free failed.
	(vect_build_slp_tree): Retain failed nodes and record
	matches in them, copying that back out when running
	into a cached fail.  Dump start and end of discovery.
	(dt_sort_cmp): New.
	(vect_build_slp_tree_2): Handle associatable chains
	together doing more aggressive operand swapping.

2021-06-09  H.J. Lu  <hjl.tools@gmail.com>

	PR target/100896
	* config.gcc (gcc_cv_initfini_array): Set to yes for Linux and
	GNU targets.
	* doc/install.texi: Require glibc 2.1 and binutils 2.12 for
	Linux and GNU targets.

2021-06-09  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.c (vect_is_simple_use): Always get dt
	from the stmt.

2021-06-09  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (loop_end): Change it to
	define_insn_and_split.

2021-06-09  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (maddhisi4): Use VMAC2H instruction.
	(machi): New pattern.
	(umaddhisi4): Use VMAC2HU instruction.
	(umachi): New pattern.

2021-06-09  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc-protos.h (arc_split_move_p): New prototype.
	* config/arc/arc.c (arc_split_move_p): New function.
	(arc_split_move): Clean up.
	* config/arc/arc.md (movdi_insn): Clean up, use arc_split_move_p.
	(movdf_insn): Likewise.
	* config/arc/simdext.md (mov<VWH>_insn): Likewise.

2021-06-09  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100936
	* config/i386/i386.c (print_operand_address_as): Rename "no_rip"
	argument to "raw".  Do not emit segment overrides when "raw" is true.

2021-06-09  Martin Liska  <mliska@suse.cz>

	* doc/gcov.texi: Create a proper JSON files.
	* doc/invoke.texi: Remove dots in order to make it a valid
	JSON object.

2021-06-09  Xionghu Luo  <luoxhu@linux.ibm.com>

	* config/rs6000/rs6000-p8swap.c (pattern_is_rotate64): New.
	(insn_is_load_p): Use pattern_is_rotate64.
	(insn_is_swap_p): Likewise.
	(quad_aligned_load_p): Likewise.
	(const_load_sequence_p): Likewise.
	(replace_swapped_aligned_load): Likewise.
	(recombine_lvx_pattern): Likewise.
	(recombine_stvx_pattern): Likewise.

2021-06-09  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-gori.cc (gori_compute::outgoing_edge_range_p): Use a
	fur_stmt source record.
	* gimple-range.cc (fur_source::get_operand): Generic range query.
	(fur_source::get_phi_operand): New.
	(fur_source::register_dependency): New.
	(fur_source::query): New.
	(class fur_edge): New.  Edge source for operands.
	(fur_edge::fur_edge): New.
	(fur_edge::get_operand): New.
	(fur_edge::get_phi_operand): New.
	(fur_edge::query): New.
	(fur_stmt::fur_stmt): New.
	(fur_stmt::get_operand): New.
	(fur_stmt::get_phi_operand): New.
	(fur_stmt::query): New.
	(class fur_depend): New.  Statement source and process dependencies.
	(fur_depend::fur_depend): New.
	(fur_depend::register_dependency): New.
	(class fur_list): New.  List source for operands.
	(fur_list::fur_list): New.
	(fur_list::get_operand): New.
	(fur_list::get_phi_operand): New.
	(fold_range): New.  Instantiate appropriate fur_source class and fold.
	(fold_using_range::range_of_range_op): Use new API.
	(fold_using_range::range_of_address): Ditto.
	(fold_using_range::range_of_phi): Ditto.
	(imple_ranger::fold_range_internal): Use fur_depend class.
	(fold_using_range::range_of_ssa_name_with_loop_info): Use new API.
	* gimple-range.h (class fur_source): Now a base class.
	(class fur_stmt): New.
	(fold_range): New prototypes.
	(fur_source::fur_source): Delete.

2021-06-08  Andrew Pinski  <apinski@marvell.com>

	PR tree-optimization/25290
	* tree-ssa-phiopt.c (xor_replacement): Delete.
	(tree_ssa_phiopt_worker): Delete use of xor_replacement.
	(match_simplify_replacement): Allow one cheap preparation
	statement that can be moved to before the if.

2021-06-08  Pat Haugen  <pthaugen@linux.ibm.com>

	* config/rs6000/power10.md (power10-fused-load, power10-fused-store,
	power10-fused_alu, power10-fused-vec, power10-fused-branch): New.

2021-06-08  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/logical.md (andqi3_1): Move BCLR case into define_insn_and_split.
	Create length attribute on define_insn_and_split.  Only split for cases which we
	know will use AND.
	(andqi3_1<cczn>): Renamed from andqi3_1_clobber_flags.  Only handle AND here and
	fix length computation.
	(b<code><mode>msx): Combine QImode and HImode H8/SX patterns using iterator.

2021-06-08  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100923
	* tree-ssa-sccvn.c (valueize_refs_1): Take a pointer to
	the operand vector to be valueized.
	(valueize_refs): Likewise.
	(valueize_shared_reference_ops_from_ref): Adjust.
	(valueize_shared_reference_ops_from_call): Likewise.
	(vn_reference_lookup_3): Likewise.
	(vn_reference_lookup_pieces): Likewise.  Re-valueize
	with honoring availability when we are about to create
	the ao_ref and valueized before.
	(vn_reference_lookup): Likewise.
	(vn_reference_insert_pieces): Adjust.

2021-06-08  Richard Biener  <rguenther@suse.de>

	* tree-vectorizer.h (_slp_instance::root_stmt): Change to...
	(_slp_instance::root_stmts): ... a vector.
	(SLP_INSTANCE_ROOT_STMT): Rename to ...
	(SLP_INSTANCE_ROOT_STMTS): ... this.
	(slp_root::root): Change to...
	(slp_root::roots): ... a vector.
	(slp_root::slp_root): Adjust.
	* tree-vect-slp.c (_slp_instance::location): Adjust.
	(vect_free_slp_instance): Release the root stmt vector.
	(vect_build_slp_instance): Adjust.
	(vect_analyze_slp): Likewise.
	(_bb_vec_info::~_bb_vec_info): Likewise.
	(vect_slp_analyze_operations): Likewise.
	(vect_bb_vectorization_profitable_p): Likewise.  Adjust
	costs for the root stmt.
	(vect_slp_check_for_constructors): Gather all BIT_INSERT_EXPRs
	as root stmts.
	(vect_slp_analyze_bb_1): Simplify by marking all root stmts
	as pure_slp.
	(vectorize_slp_instance_root_stmt): Adjust.
	(vect_schedule_slp): Likewise.

2021-06-08  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-ssa-evrp.c (class ssa_equiv_stack): New.
	(ssa_equiv_stack::ssa_equiv_stack): New.
	(ssa_equiv_stack::~ssa_equiv_stack): New.
	(ssa_equiv_stack::enter): New.
	(ssa_equiv_stack::leave): New.
	(ssa_equiv_stack::push_replacement): New.
	(ssa_equiv_stack::get_replacement): New.
	(is_pointer_ssa): New.
	(class pointer_equiv_analyzer): New.
	(pointer_equiv_analyzer::pointer_equiv_analyzer): New.
	(pointer_equiv_analyzer::~pointer_equiv_analyzer): New.
	(pointer_equiv_analyzer::set_global_equiv): New.
	(pointer_equiv_analyzer::set_cond_equiv): New.
	(pointer_equiv_analyzer::get_equiv): New.
	(pointer_equiv_analyzer::enter): New.
	(pointer_equiv_analyzer::leave): New.
	(pointer_equiv_analyzer::get_equiv_expr): New.
	(pta_valueize): New.
	(pointer_equiv_analyzer::visit_stmt): New.
	(pointer_equiv_analyzer::visit_edge): New.
	(hybrid_folder::value_of_expr): Call PTA.
	(hybrid_folder::value_on_edge): Same.
	(hybrid_folder::pre_fold_bb): New.
	(hybrid_folder::post_fold_bb): New.
	(hybrid_folder::pre_fold_stmt): New.
	(rvrp_folder::pre_fold_bb): New.
	(rvrp_folder::post_fold_bb): New.
	(rvrp_folder::pre_fold_stmt): New.
	(rvrp_folder::value_of_expr): Call PTA.
	(rvrp_folder::value_on_edge): Same.

2021-06-08  Jakub Jelinek  <jakub@redhat.com>

	PR c++/100957
	* tree-inline.c (copy_tree_body_r): For OMP_CLAUSE_DEPEND don't
	check TREE_CODE if OMP_CLAUSE_DECL is NULL.

2021-06-08  Richard Biener  <rguenther@suse.de>

	PR middle-end/100951
	* tree-vect-generic.c (expand_vector_piecewise): Build a
	VECTOR_CST if all elements are constant.
	(expand_vector_condition): Likewise.
	(lower_vec_perm): Likewise.
	(expand_vector_conversion): Likewise.

2021-06-08  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Document new param evrp-sparse-threshold.

2021-06-08  Martin Liska  <mliska@suse.cz>

	* genautomata.c (create_automata): Fix typo.

2021-06-08  Kewen Lin  <linkw@linux.ibm.com>

	PR tree-optimization/100794
	* tree-predcom.c (tree_predictive_commoning_loop): Add parameter
	allow_unroll_p and only allow unrolling when it's true.
	(tree_predictive_commoning): Add parameter allow_unroll_p and
	adjust for it.
	(run_tree_predictive_commoning): Likewise.
	(pass_predcom::gate): Check flag_tree_loop_vectorize and
	global_options_set.x_flag_predictive_commoning.
	(pass_predcom::execute): Adjust for allow_unroll_p.

2021-06-08  Kewen Lin  <linkw@linux.ibm.com>

	* tree-predcom.c (execute_pred_commoning): Remove update_ssa call.
	(tree_predictive_commoning_loop): Factor some cleanup stuffs into
	lambda function cleanup, remove scev_reset call, and adjust return
	value.
	(tree_predictive_commoning): Adjust for different changed values,
	only set flag TODO_update_ssa_only_virtuals if changed.
	(pass_data pass_data_predcom): Remove TODO_update_ssa_only_virtuals
	from todo_flags_finish.

2021-06-07  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (class sbr_sparse_bitmap): New.
	(sbr_sparse_bitmap::sbr_sparse_bitmap): New.
	(sbr_sparse_bitmap::bitmap_set_quad): New.
	(sbr_sparse_bitmap::bitmap_get_quad): New.
	(sbr_sparse_bitmap::set_bb_range): New.
	(sbr_sparse_bitmap::get_bb_range): New.
	(sbr_sparse_bitmap::bb_range_p): New.
	(block_range_cache::block_range_cache): initialize bitmap obstack.
	(block_range_cache::~block_range_cache): Destruct obstack.
	(block_range_cache::set_bb_range): Decide when to utilze the
	sparse on entry cache.
	* gimple-range-cache.h (block_range_cache): Add bitmap obstack.
	* params.opt (-param=evrp-sparse-threshold): New.

2021-06-07  Andrew MacLeod  <amacleod@redhat.com>

	* bitmap.c (bitmap_set_aligned_chunk): New.
	(bitmap_get_aligned_chunk): New.
	(test_aligned_chunk): New.
	(bitmap_c_tests): Call test_aligned_chunk.
	* bitmap.h (bitmap_set_aligned_chunk, bitmap_get_aligned_chunk): New.

2021-06-07  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100637
	* config/i386/i386-expand.c (ix86_expand_vector_init_duplicate):
	Handle V4QI mode.
	(ix86_expand_vector_init_one_nonzero): Ditto.
	(ix86_expand_vector_init_one_var): Ditto.
	(ix86_expand_vector_init_general): Ditto.
	* config/i386/mmx.md (vec_initv4qiqi): New expander.

2021-06-07  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/movepush.md: Change most _clobber_flags
	patterns to instead use <cczn> subst.
	(movsi_cczn): New pattern with usable CC cases split out.
	(movsi_h8sx_cczn): Likewise.

2021-06-07  Martin Liska  <mliska@suse.cz>

	* common/common-target.def: Split long lines and replace them
	with '\n\'.
	* target.def: Likewise.
	* doc/tm.texi: Re-generated.

2021-06-07  Jakub Jelinek  <jakub@redhat.com>

	PR target/100887
	* fold-const.c (fold_read_from_vector): Return NULL if trying to
	read from a CONSTRUCTOR with vector type elements.

2021-06-07  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/100898
	* tree-inline.c (copy_bb): Only use gimple_call_arg_ptr if memcpy
	should copy any arguments.  Don't call gimple_call_num_args
	on id->call_stmt or call_stmt more than once.

2021-06-07  liuhongt  <hongtao.liu@intel.com>

	PR target/100885
	* config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3): Refine
	constraints.
	(<insn>v4siv4di2): Delete constraints for define_expand.

2021-06-07  liuhongt  <hongtao.liu@intel.com>

	PR target/82735
	* config/i386/i386-expand.c (ix86_expand_builtin): Remove
	assignment of cfun->machine->has_explicit_vzeroupper.
	* config/i386/i386-features.c
	(ix86_add_reg_usage_to_vzerouppers): Delete.
	(ix86_add_reg_usage_to_vzeroupper): Ditto.
	(rest_of_handle_insert_vzeroupper): Remove
	ix86_add_reg_usage_to_vzerouppers, add df_analyze at the end
	of the function.
	(gate): Remove cfun->machine->has_explicit_vzeroupper.
	* config/i386/i386-protos.h (ix86_expand_avx_vzeroupper):
	Declared.
	* config/i386/i386.c (ix86_insn_callee_abi): New function.
	(ix86_initialize_callee_abi): Ditto.
	(ix86_expand_avx_vzeroupper): Ditto.
	(ix86_hard_regno_call_part_clobbered): Adjust for vzeroupper
	ABI.
	(TARGET_INSN_CALLEE_ABI): Define as ix86_insn_callee_abi.
	(ix86_emit_mode_set): Call ix86_expand_avx_vzeroupper
	directly.
	* config/i386/i386.h (struct GTY(()) machine_function): Delete
	has_explicit_vzeroupper.
	* config/i386/i386.md (enum unspec): New member
	UNSPEC_CALLEE_ABI.
	(ABI_DEFAULT,ABI_VZEROUPPER,ABI_UNKNOWN): New
	define_constants for insn callee abi index.
	* config/i386/predicates.md (vzeroupper_pattern): Adjust.
	* config/i386/sse.md (UNSPECV_VZEROUPPER): Deleted.
	(avx_vzeroupper): Call ix86_expand_avx_vzeroupper.
	(*avx_vzeroupper): Rename to ..
	(avx_vzeroupper_callee_abi): .. this, and adjust pattern as
	call_insn which has a special vzeroupper ABI.
	(*avx_vzeroupper_1): Deleted.

2021-06-07  liuhongt  <hongtao.liu@intel.com>

	PR target/82735
	* df-scan.c (df_get_call_refs): When call_insn is a fake call,
	it won't use stack pointer reg.
	* final.c (leaf_function_p): When call_insn is a fake call, it
	won't affect caller as a leaf function.
	* reg-stack.c (callee_clobbers_any_stack_reg): New.
	(subst_stack_regs): When call_insn doesn't clobber any stack
	reg, don't clear the arguments.
	* rtl.c (shallow_copy_rtx): Don't clear flag used when orig is
	a insn.
	* shrink-wrap.c (requires_stack_frame_p): No need for stack
	frame for a fake call.
	* rtl.h (FAKE_CALL_P): New macro.

2021-06-06  Eric Botcazou  <ebotcazou@adacore.com>

	* config/sparc/sparc-protos.h (order_regs_for_local_alloc): Rename
	to...
	(sparc_order_regs_for_local_alloc): ...this.
	(sparc_leaf_reg_remap): Declare.
	* config/sparc/sparc.h (ADJUST_REG_ALLOC_ORDER): Adjust.
	(LEAF_REG_REMAP): Reimplement as call to sparc_leaf_reg_remap.
	* config/sparc/sparc.c (leaf_reg_remap): Delete.
	(order_regs_for_local_alloc): Rename to...
	(sparc_order_regs_for_local_alloc): ...this.
	(sparc_leaf_reg_remap): New function.
	(sparc_conditional_register_usage): Do not modify leaf_reg_remap.

2021-06-06  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/rs6000.c (rs6000_xcoff_asm_output_aligned_decl_common):
	Use assemble_name to output BSS section name.

2021-06-06  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/constraints.md (Bs):
	Remove boolean operators from match_test RTX.
	(Bw): Ditto.
	(L): Ditto.
	(M): Use "mode" variable instead of GET_MODE (op) in match_test RTX.
	(Wz): Ditto.

2021-06-06  Martin Liska  <mliska@suse.cz>

	* doc/extend.texi: Add missing @headitem.
	* doc/invoke.texi: Likewise.
	* doc/objc.texi: Likewise.

2021-06-06  Martin Liska  <mliska@suse.cz>

	* genhooks.c (emit_findices): Remove unused function.
	(emit_documentation): Do not call emit_findices
	and do not search for @Fcode directives.

2021-06-06  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Remove extra character.

2021-06-05  Kewen Lin  <linkw@linux.ibm.com>

	* config/sh/sh.md (doloop_end_split): Fix empty split condition.

2021-06-05  Kewen Lin  <linkw@linux.ibm.com>

	* config/sparc/sparc.md (*snedi<W:mode>_zero_vis3,
	*neg_snedi<W:mode>_zero_subxc, *plus_snedi<W:mode>_zero,
	*plus_plus_snedi<W:mode>_zero, *minus_snedi<W:mode>_zero,
	*minus_minus_snedi<W:mode>_zero): Fix empty split condition.

2021-06-05  Kewen Lin  <linkw@linux.ibm.com>

	* config/or1k/or1k.md (*movdi): Fix empty split condition.

2021-06-05  Kewen Lin  <linkw@linux.ibm.com>

	* config/mips/mips.md (<anonymous>, bswapsi2, bswapdi2): Fix empty
	split condition.

2021-06-05  Kewen Lin  <linkw@linux.ibm.com>

	* config/m68k/m68k.md (*zero_extend_inc, *zero_extend_dec,
	*zero_extendsidi2): Fix empty split condition.

2021-06-05  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/addsub.md: Fix split condition in define_insn_and_split
	patterns.
	* config/h8300/bitfield.md: Likewise.
	* config/h8300/combiner.md: Likewise.
	* config/h8300/divmod.md: Likewise.
	* config/h8300/extensions.md: Likewise.
	* config/h8300/jumpcall.md: Likewise.
	* config/h8300/movepush.md: Likewise.
	* config/h8300/multiply.md: Likewise.
	* config/h8300/other.md: Likewise.
	* config/h8300/shiftrotate.md: Likewise.
	* config/h8300/logical.md: Likewise.  Fix split pattern to use
	code iterator that somehow slipped through.

2021-06-04  Tobias Burnus  <tobias@codesourcery.com>

	PR middle-end/100905
	* tree-nested.c (convert_nonlocal_omp_clauses,
	convert_local_omp_clauses): Handle OMP_CLAUSE_BIND.

2021-06-04  Martin Sebor  <msebor@redhat.com>

	PR middle-end/100732
	* gimple-fold.c (gimple_fold_builtin_sprintf): Avoid folding calls
	with either source or destination argument of invalid type.
	* tree-ssa-uninit.c (maybe_warn_pass_by_reference): Avoid checking
	calls with arguments of invalid type.

2021-06-04  Martin Sebor  <msebor@redhat.com>

	* attribs.c (init_attr_rdwr_indices): Use VLA bounds in the expected
	order.
	(attr_access::vla_bounds): Also handle VLA bounds.

2021-06-04  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/predicates.md (GOT_memory_operand):
	Implement using match_code RTXes.
	(GOT32_symbol_operand): Ditto.

2021-06-04  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100637
	* config/i386/i386-expand.c (ix86_expand_vector_init_duplicate):
	Handle V2HI mode.
	(ix86_expand_vector_init_general): Ditto.
	Use SImode instead of word_mode for logic operations
	when GET_MODE_SIZE (mode) < UNITS_PER_WORD.
	(expand_vec_perm_even_odd_1): Assert that V2HI mode should be
	implemented by expand_vec_perm_1.
	(expand_vec_perm_broadcast_1): Assert that V2HI and V4HI modes
	should be implemented using standard shuffle patterns.
	(ix86_vectorize_vec_perm_const): Handle V2HImode.  Add V4HI and
	V2HI modes to modes, implementable with shuffle for one operand.
	* config/i386/mmx.md (*punpckwd): New insn_and_split pattern.
	(*pshufw_1): New insn pattern.
	(*vec_dupv2hi): Ditto.
	(vec_initv2hihi): New expander.

2021-06-04  Kewen Lin  <linkw@linux.ibm.com>

	* config/arm/vfp.md (no_literal_pool_df_immediate,
	no_literal_pool_sf_immediate): Fix empty split condition.

2021-06-04  Kewen Lin  <linkw@linux.ibm.com>

	* config/i386/i386.md (*load_tp_x32_zext, *add_tp_x32_zext,
	*tls_dynamic_gnu2_combine_32): Fix empty split condition.
	* config/i386/sse.md (*<sse2_avx2>_pmovmskb_lt,
	*<sse2_avx2>_pmovmskb_zext_lt, *sse2_pmovmskb_ext_lt,
	*<sse4_1_avx2>_pblendvb_lt): Likewise.

2021-06-04  Jakub Jelinek  <jakub@redhat.com>

	PR target/100887
	* config/i386/i386-expand.c (ix86_expand_vector_init): Handle
	concatenation from half-sized modes with TImode elements.

2021-06-04  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.c (arc_override_options): Disable millicode
	thunks when RF16 is on.

2021-06-04  Haochen Gui  <guihaoc@gcc.gnu.org>

	* config/rs6000/rs6000.h (PROMOTE_MODE): Remove.

2021-06-04  Haochen Gui  <guihaoc@gcc.gnu.org>

	* config/rs6000/rs6000-call.c (rs6000_promote_function_mode):
	Replace PROMOTE_MODE marco with its content.

2021-06-03  Kewen Lin  <linkw@linux.ibm.com>

	* config/cris/cris.md (*addi_reload): Fix empty split condition.

2021-06-03  Jim Wilson  <jimw@sifive.com>

	* config.gcc (riscv*-*-*): If --with-riscv-attribute not used,
	turn it on for all riscv targets.

2021-06-03  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100637
	* config/i386/i386-expand.c (ix86_expand_vector_set):
	Handle V2HI and V4QI modes.
	(ix86_expand_vector_extract): Ditto.
	* config/i386/mmx.md (*pinsrw): New insn pattern.
	(*pinsrb): Ditto.
	(*pextrw): Ditto.
	(*pextrw_zext): Ditto.
	(*pextrb): Ditto.
	(*pextrb_zext): Ditto.
	(vec_setv2hi): New expander.
	(vec_extractv2hihi): Ditto.
	(vec_setv4qi): Ditto.
	(vec_extractv4qiqi): Ditto.
	(vec_setv8qi): Enable only for TARGET_SSE4_1.
	(vec_extractv8qiqi): Ditto.

2021-06-03  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/genfusion.pl (gen_logical_addsubf): Fix input
	order to subf instruction.
	* config/rs6000/fusion.md: Regenerate.

2021-06-03  Aldy Hernandez  <aldyh@redhat.com>

	* calls.c (get_size_range): Use range_of_expr instead of
	determine_value_range.
	* tree-affine.c (expr_to_aff_combination): Same.
	* tree-data-ref.c (split_constant_offset): Same.
	* tree-vrp.c (determine_value_range_1): Remove.
	(determine_value_range): Remove.
	* tree-vrp.h (determine_value_range): Remove.

2021-06-03  Aldy Hernandez  <aldyh@redhat.com>

	* function-tests.c (test_ranges): Call gimple_range_tests.
	* gimple-range-cache.cc (ranger_cache::range_of_expr): Pass stmt
	to get_tree_range.
	* gimple-range.cc (fur_source::get_operand): Do not call
	get_tree_range or gimple_range_global.
	get_tree_range.
	(get_tree_range): Move to value-query.cc.
	Call get_arith_expr_range.
	(gimple_ranger::range_of_expr): Add argument to get_tree_range.
	Include gimple-range-tests.cc.
	* gimple-range.h (fold_range): Add argument.
	(get_tree_range): Remove.
	* selftest.h (gimple_range_tests): New.
	* value-query.cc (global_range_query::range_of_expr): Add
	stmt argument.
	(range_query::get_tree_range): Move from gimple-range.cc.
	* value-query.h (class range_query): Add get_tree_range and
	get_arith_expr_range.  Make fur_source a friend.
	* vr-values.c (vr_values::range_of_expr): Pass stmt to
	get_tree_range.
	* gimple-range-tests.cc: New file.

2021-06-03  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range.cc (gimple_ranger::export_global_ranges): Call
	  update_global_range.
	* value-query.cc (update_global_range): New.
	* value-query.h (update_global_range): New.

2021-06-03  David Malcolm  <dmalcolm@redhat.com>

	* diagnostic-show-locus.c (diagnostic_show_locus): Don't reject
	printing the same location twice if there are fix-it hints,
	multiple locations, or a label.

2021-06-03  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* tree-vect-loop.c (vect_transform_loop): Use main loop's various'
	thresholds to narrow the upper bound on epilogue iterations.

2021-06-03  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/mve.md (mve_vabsq_f<mode>): Use 'abs' instead of unspec.
	(mve_vabsq_s<mode>): Likewise.
	* config/arm/neon.md (abs<mode>2): Rename to neon_abs<mode>2.
	* config/arm/unspecs.md (VABSQ_F, VABSQ_S): Delete.
	* config/arm/vec-common.md (neg<mode>2): Rename to
	<absneg_str><mode>2.

2021-06-03  Claudiu Zissulescu  <claziss@synopsys.com>

	* common/config/arc/arc-common.c (arc_option_optimization_table):
	Remove malign-call.
	* config/arc/arc.c (arc_unalign_branch_p): Remove unused function.
	* config/arc/arc.h (TARGET_MIXED_CODE): Remove macro.
	(INDEX_REG_CLASS): Only refer to GENERAL_REGS.
	* config/arc/arc.md (abssi2_mixed): Remove pattern.
	* config/arc/arc.opt (munalign-prob-threshold): Mark it obsolete.
	(malign-call): Likewise.
	(mmixed-code): Likewise.
	* doc/invoke.texi (ARC): Update doc.

2021-06-03  Martin Liska  <mliska@suse.cz>

	* common.opt: Use proper Enum values.
	* opts.c (COVERAGE_SANITIZER_OPT): Remove.
	(parse_sanitizer_options): Handle only sanitizer_opts.
	(common_handle_option): Just assign value.

2021-06-03  Eric Botcazou  <ebotcazou@adacore.com>

	PR ipa/99122
	* tree-inline.c (inline_forbidden_p): Remove test on return type.

2021-06-03  Eric Botcazou  <ebotcazou@adacore.com>

	* dwarf2out.c (loc_list_from_tree_1) <FUNCTION_DECL>: Also generate
	DW_OP_GNU_variable_value referencing an existing DIE at file scope.
	(type_byte_size): Inline into...
	(add_byte_size_attribute): ...this and call add_scalar_info.

2021-06-03  Eric Botcazou  <ebotcazou@adacore.com>

	* dwarf2out.c (mem_loc_descriptor) <UDIV>: Fix typo.
	(typed_binop_from_tree): New function.
	(loc_list_from_tree_1) <EXACT_DIV_EXPR>: For an unsigned type,
	turn a divide by a power of 2 into a shift.
	<CEIL_DIV_EXPR>: For an unsigned type, use a signed divide if the
	size of the mode is lower than DWARF2_ADDR_SIZE; otherwise, do a
	typed divide by calling typed_binop_from_tree.

2021-06-03  Eric Botcazou  <ebotcazou@adacore.com>

	* dwarf2out.c (scompare_loc_descriptor): Fix head comment.
	(is_handled_procedure_type): Likewise.
	(struct loc_descr_context): Add strict_signedness field.
	(resolve_args_picking_1): Deal with DW_OP_[GNU_]deref_type,
	DW_OP_[GNU_]convert and DW_OP_[GNU_]reinterpret.
	(resolve_args_picking): Minor tweak.
	(function_to_dwarf_procedure): Initialize strict_signedness field.
	(type_byte_size): Likewise.
	(field_byte_offset): Likewise.
	(gen_descr_array_type_die): Likewise.
	(gen_variant_part): Likewise.
	(loc_list_from_tree_1) <CALL_EXPR>: Tidy up and set strict_signedness
	to true when a context is present before evaluating the arguments.
	<COND_EXPR>: Do not generate a useless comparison with zero.
	When dereferencing an address, if strict_signedness is true and the
	type is small and signed, use DW_OP_deref_type to do the dereference
	and then DW_OP_convert to convert back to the generic type.

2021-06-03  Jakub Jelinek  <jakub@redhat.com>

	PR c++/100859
	* tree-inline.c (copy_tree_body_r): Handle iterators on
	OMP_CLAUSE_AFFINITY or OMP_CLAUSE_DEPEND.

2021-06-03  Kewen Lin  <linkw@linux.ibm.com>

	* config/arc/arc.md (*bbit_di): Remove.

2021-06-02  Christoph Muellner  <cmuellner@gcc.gnu.org>

	PR rtl-optimization/100264
	* ree.c (get_sub_rtx): Ignore SET expressions without register
	destinations and remove assertion, as it is not valid anymore
	with this new behaviour.
	(merge_def_and_ext): Eliminate destination check for register
	as such SET expressions can't occur anymore.
	(combine_reaching_defs): Likewise.

2021-06-02  Jakub Jelinek  <jakub@redhat.com>

	PR target/100841
	* config/xtensa/xtensa.h (LEAF_REG_REMAP): Cast REGNO to int to avoid
	-Wtype-limits warnings.
	(DWARF_FRAME_REGISTER): Rewrite into ternary operator with addition
	in operands to avoid -Wsign-compare warnings.

2021-06-02  Pat Haugen  <pthaugen@linux.ibm.com>

	* config/rs6000/rs6000-logue.c (rs6000_emit_prologue): Use
	gen_frame_store.

2021-06-02  Vineet Gupta  <vgupta@synopsys.com>

	* config/arc/arc.h (TARGET_CPU_DEFAULT): Change to hs38_linux.

2021-06-02  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/s390.md(*ashrdi3_31<setcc><cconly>): Use a single
	constraint.
	* config/s390/subst.md(cconly_subst): Use a single constraint
	in (match_scratch).

2021-06-02  Martin Liska  <mliska@suse.cz>

	* ipa-icf.h: Use auto_vec for memory_access_types.

2021-06-02  Jeff Law  <jeffreyalaw@gmail.com>

	* config/h8300/h8300-protos.h (compute_a_shift_length): Drop unused
	argument from prototype.
	(output_logical_op): Add rtx_code argument.
	(compute_logical_op_length): Likewise.
	* config/h8300/h8300.c (h8300_and_costs): Pass additional argument
	to compute_a_shift_length.
	(output_logical_op); New argument with the rtx code rather than
	extracting it from an operand.  Handle QImode too.
	(compute_logical_op_length): Similary.
	(compute_a_shift_length): Drop unused argument.
	* config/h8300/h8300.md (logicals): New code iterator.
	* config/h8300/logical.md (<code><mode>3 expander): Combine
	the "and" expander with the "ior"/"xor" expander.
	(bclr<mode>msx): Combine the QI/HI mode patterns.
	(<logical><mode>3 insns): Use code iterator rather than match_operator.
	Handle QImode as well.   Update call to output_logical_op and
	compute_logical_op_length to pass in rtx_code
	Fix split condition on all define_insn_and_split patterns.
	(one_cmpl<mode>2<cczn>): Use <cczn> to support both clobbering
	the flags and setting ZN via existing define_subst.
	* config/h8300/shiftrotate.md: Drop unused argument from
	calls to compute_a_shift_length.
	Signed-off-by: Jeff Law <jeffreyalaw@gmail.com>

2021-06-01  Andrew Pinski  <apinski@marvell.com>

	PR tree-optimization/25290
	* tree-ssa-phiopt.c (match_simplify_replacement):
	New function.
	(tree_ssa_phiopt_worker): Use match_simplify_replacement.
	(two_value_replacement): Change the comment about
	conditional_replacement.
	(conditional_replacement): Delete.

2021-06-01  Andrew Pinski  <apinski@marvell.com>

	PR tree-optimization/95481
	* tree-tailcall.c (find_tail_calls): Handle empty typed
	return decls.

2021-06-01  Andrew Pinski  <apinski@marvell.com>

	* gimplify.c (zero_sized_field_decl): Delete
	(zero_sized_type): Delete
	(gimplify_init_ctor_eval): Use is_empty_type instead
	of zero_sized_field_decl.
	(gimplify_modify_expr): Use is_empty_type instead of
	zero_sized_type.

2021-06-01  Jason Merrill  <jason@redhat.com>

	PR c++/91859
	* tree.h (CALL_FROM_NEW_OR_DELETE_P): Adjust comment.

2021-06-01  Jason Merrill  <jason@redhat.com>

	PR c++/94492
	* diagnostic.h (warning_enabled_at): Declare.
	* diagnostic.c (diagnostic_enabled): Factor out from...
	(diagnostic_report_diagnostic): ...here.
	(warning_enabled_at): New.

2021-06-01  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-ssa-evrp.c: Enable exporting of global ranges.

2021-06-01  Martin Liska  <mliska@suse.cz>

	PR other/100826
	* doc/invoke.texi: Mention that -fgcse-after-reload
	is enabled with -O3.

2021-06-01  liuhongt  <hongtao.liu@intel.com>

	PR tree-optimization/98365
	* tree-if-conv.c (strip_nop_cond_scalar_reduction): New function.
	(is_cond_scalar_reduction): Handle nop_expr in cond scalar reduction.
	(convert_scalar_cond_reduction): Ditto.
	(predicate_scalar_phi): Ditto.

2021-06-01  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/100781
	* gimple-range-cache.cc (ranger_cache::ranger_cache): Enable new
	value calculation by default.
	(ranger_cache::enable_new_values): New.
	(ranger_cache::disable_new_values): New.
	(ranger_cache::push_poor_value): Check if new values are allowed.
	* gimple-range-cache.h (class ranger_cache): New member/methods.
	* gimple-range.cc (gimple_ranger::range_of_expr): Check for debug
	statement, and disable/renable new value calculation.

2021-06-01  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (ranger_cache::ssa_range_in_bb): Delete.
	(ranger_cache::range_of_def): New.
	(ranger_cache::entry_range): New.
	(ranger_cache::exit_range): New.
	(ranger_cache::range_of_expr): Adjust.
	(ranger_cache::range_on_edge): Adjust.
	(ranger_cache::propagate_cache): Call exit_range directly.
	* gimple-range-cache.h (class ranger_cache): Adjust.

2021-06-01  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (ranger_cache::ranger_cache): Adjust for
	gori_compute being a member rather than base class.
	dervied call to member call.
	(ranger_cache::dump): No longer dump gori_map.
	(ranger_cache::dump_bb): New.
	(ranger_cache::get_non_stale_global_range): Adjust for gori_compute
	being a member rather than base class.
	(ranger_cache::set_global_range): Ditto.
	(ranger_cache::ssa_range_in_bb): Ditto.
	(ranger_cache::range_of_expr): New.
	(ranger_cache::range_on_edge): New.
	(ranger_cache::block_range): Adjust for gori_computes.  Debug changes.
	(ranger_cache::propagate_cache):  Adjust debugging output.
	(ranger_cache::fill_block_cache): Adjust for gori_computes.  Debug
	output changes.
	* gimple-range-cache.h (class ranger_cache): Make gori_compute a
	member, and inherit from range_query instead.
	(ranger_cache::dump_bb): New. split from dump.
	* gimple-range-gori.cc (gori_compute::ssa_range_in_bb): Delete.
	(gori_compute::expr_range_at_stmt): Delete.
	(gori_compute::compute_name_range_op): Delete.
	(gori_compute::compute_operand_range_switch): Add fur_source.
	(gori_compute::compute_operand_range): Add fur_source param, inline
	old compute_name_range_op and optimize_logical_operands.
	(struct tf_range): Delete.
	(gori_compute::logical_combine): Adjust
	(gori_compute::optimize_logical_operands): Delete.
	(gori_compute::compute_logical_operands_in_chain): Delete.
	(gori_compute::compute_logical_operands): Adjust.
	(gori_compute::compute_operand1_range): Adjust to fur_source.
	(gori_compute::compute_operand2_range): Ditto.
	(gori_compute::compute_operand1_and_operand2_range): Ditto.
	(gori_compute::outgoing_edge_range_p): Add range_query parameter,
	and adjust to fur_source.
	* gimple-range-gori.h (class gori_compute): Simplify and adjust to
	range_query and fur_source.
	* gimple-range.cc (gimple_ranger::range_on_edge): Query range_on_edge
	from the ranger_cache..
	(gimple_ranger::fold_range_internal): Adjust to base class change of
	ranger_cache.
	(gimple_ranger::dump_bb): Adjust dump.
	* gimple-range.h (gimple_ranger):export gori computes object.

2021-06-01  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/100774
	* gimple-range-cache.cc (ranger_cache::get_non_stale_global_range):
	Constant values are also not stale.
	(ranger_cache::set_global_range): Range invariant values should also
	have the correct timestamp.

2021-05-31  Martin Liska  <mliska@suse.cz>

	* tree-streamer-in.c (unpack_ts_function_decl_value_fields):
	Unpack FUNCTION_DECL_DECL_TYPE.
	* tree-streamer-out.c (pack_ts_function_decl_value_fields):
	Stream FUNCTION_DECL_DECL_TYPE instead of
	DECL_IS_OPERATOR_NEW_P.
	* tree.h (set_function_decl_type): Use FUNCTION_DECL_DECL_TYPE
	macro.
	(DECL_IS_OPERATOR_NEW_P): Likewise.
	(DECL_IS_OPERATOR_DELETE_P): Likewise.
	(DECL_LAMBDA_FUNCTION_P): Likewise.

2021-05-31  Richard Biener  <rguenther@suse.de>

	PR c++/88601
	* internal-fn.c (expand_SHUFFLEVECTOR): Define.
	* internal-fn.def (SHUFFLEVECTOR): New.
	* internal-fn.h (expand_SHUFFLEVECTOR): Declare.
	* doc/extend.texi: Document __builtin_shufflevector.

2021-05-31  Peter Bergner  <bergner@linux.ibm.com>

	PR target/99842
	* config/rs6000/predicates.md(mma_assemble_input_operand): Allow
	indexed form addresses.

2021-05-29  Jeff Law  <jlaw@tachyum.com>

	* config/h8300/h8300.c (h8300_emit_stack_adjustment): Drop unused
	parameter.  Call callers fixed.
	(push): Likewise.
	(output_plussi): Add FALLTHRU markers.
	(h8300_shift_needs_scratch_p): Add gcc_unreachable marker.

2021-05-29  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/99928
	* gimplify.c (gimplify_scan_omp_clauses): For taskloop simd
	combined with parallel, make sure to add shared clause to
	parallel for explicit linear clause.

2021-05-29  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/100787
	* gimple-ssa-evrp.c: Disable exporting of global ranges.

2021-05-28  Jason Merrill  <jason@redhat.com>

	* tree-iterator.h (struct tree_stmt_iterator): Add operator++,
	operator--, operator*, operator==, and operator!=.
	(class tsi_range): New.

2021-05-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100778
	* tree-vect-slp.c (vect_build_slp_tree_1): Prevent possibly
	trapping ops in different BBs.

2021-05-28  Richard Biener  <rguenther@suse.de>

	PR ipa/100791
	* tree-inline.c (copy_bb): When processing __builtin_va_arg_pack
	copy fntype from original call.

2021-05-28  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/100751
	* doc/gcov.texi: Revert partially a hunk that was wrong.

2021-05-28  Cooper Qu  <cooper.qu@linux.alibaba.com>

	* config/csky/csky-linux-elf.h (HAVE_sync_compare_and_swapqi):
	Defined.
	(HAVE_sync_compare_and_swaphi): Likewise.
	(HAVE_sync_compare_and_swapsi): Likewise.

2021-05-28  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/99928
	* tree.h (OMP_CLAUSE_MAP_IMPLICIT): Define.

2021-05-28  Tobias Burnus  <tobias@codesourcery.com>

	* gimplify.c (gimplify_omp_affinity): New.
	(gimplify_scan_omp_clauses): Call it; remove affinity clause afterwards.
	* tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_AFFINITY.
	* tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE_AFFINITY.
	* tree.c (omp_clause_num_ops, omp_clause_code_name): Add clause.
	(walk_tree_1): Handle OMP_CLAUSE_AFFINITY.

2021-05-28  Joern Rennecke  <joern.rennecke@riscy-ip.com>
	    Richard Biener   <rguenther@suse.de>

	* match.pd <popcount & / + pattern matching>:
	When generating popcount directly fails, try doing it in two halves.

2021-05-28  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* Makefile.in (generated_files): Add gimple-match.c and
	generic-match.c

2021-05-28  Joern Rennecke  <joern.rennecke@embecosm.com>

	* gensupport.c (alter_predicate_for_insn): Handle MATCH_DUP.

2021-05-28  Joern Rennecke  <joern.rennecke@embecosm.com>

	* gensupport.c (alter_constraints): Add MATCH_SCRATCH case.

2021-05-28  Kewen Lin  <linkw@linux.ibm.com>

	PR tree-optimization/99398
	* tree-ssa-forwprop.c (simplify_permutation): Optimize some cases
	where the fed operands are CTOR/CST and propagated through
	VIEW_CONVERT_EXPR.  Call vec_perm_indices::new_shrunk_vector.
	* vec-perm-indices.c (vec_perm_indices::new_shrunk_vector): New
	function.
	* vec-perm-indices.h (vec_perm_indices::new_shrunk_vector): New
	declare.

2021-05-27  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/mmx.md (addv2sf3): Do not call
	ix86_fixup_binary_operands_no_copy.
	(subv2sf3): Ditto.
	(mulv2sf3): Ditto.
	(<smaxmin:code>v2sf3): Ditto.
	(<plusminus:insn><MMXMODEI:mode>3): Ditto.
	(<plusminus:insn><VI_32:mode>3): Remove expander.
	(<plusminus:insn><VI_32:mode>3): Rename from
	"*<plusminus:insn><VI_32:mode>3".
	(mulv4hi): Do not call ix86_fixup_binary_operands_no_copy.
	(mulv2hi3): Remove expander.
	(mulv2hi3): Rename from *mulv2hi3.
	(<s>mulv2hi3_highpart): Remove expander.
	(<s>mulv2hi3_highpart): Rename from *<s>mulv2hi3_highpart.
	(<smaxmin:code><MMXMODE14:mode>3): Rename from
	"*mmx_<smaxmin:code><MMXMODE14:mode>3".
	(<smaxmin:code><SMAXMIN_MMXMODEI:mode>3): Remove expander.
	(SMAXMIN_MMXMODEI): Remove mode iterator.
	(<smaxmin:code>v4hi3): New expander.
	(<smaxmin:code>v4qi3): Rename from *<smaxmin:code>v4qi3.
	(<smaxmin:code>v2hi3): Rename from *<smaxmin:code>v2hi3.
	(<smaxmin:code><SMAXMIN_VI_32:mode>3): Remove expander.
	(SMAXMIN_VI_32): Remove mode iterator.
	(<umaxmin:code><MMXMODE24:mode>3): Rename from
	"*mmx_<umaxmin:code><MMXMODE24:mode>3".
	(<umaxmin:code><UMAXMIN_MMXMODEI:mode>3): Remove expander.
	(UMAXMIN_MMXMODEI): Remove mode iterator.
	(<umaxmin:code>v8qi3): New expander.
	(<umaxmin:code>v4qi3): Rename from *<umaxmin:code>v4qi3.
	(<umaxmin:code>v2hi3): Rename from *<umaxmin:code>v2hi3.
	(<umaxmin:code><SMAXMIN_VI_32:mode>3): Remove expander.
	(UMAXMIN_VI_32): Remove mode iterator.
	(<any_shift:insn>v2hi3): Remove expander.
	(<any_shift:insn>v2hi3): Rename from *<any_shift:insn>v2hi3.
	(<any_logic:code><MMXMODEI:mode>3): Do not call
	ix86_fixup_binary_operands_no_copy.
	(<any_logic:code><VI_32:mode>3): Remove expander.
	(<any_logic:code><VI_32:mode>3): Rename from
	"*<any_logic:code><VI_32:mode>3".
	(uavg<mode>3_ceil): Do not call ix86_fixup_binary_operands_no_copy.
	* config/i386/sse.md (div<VF2:mode>3): Do not call
	ix86_fixup_binary_operands_no_copy.
	(div<VF1:mode>3): Ditto.
	(<maxmin:code><VI8_AVX2_AVX512F:mode>3): Ditto.
	(smulhrsv4hi3): Ditto.
	(smulhrsv2hi3): Ditto.

2021-05-27  Martin Sebor  <msebor@redhat.com>

	* ggc.h (gt_ggc_mx): Add overloads for all integers.
	(gt_pch_nx):  Same.
	* hash-map.h (class hash_map): Add pch_nx_helper overloads for all
	integers.
	(hash_map::operator==): New function.

2021-05-27  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100637
	* config/i386/i386-expand.c (ix86_expand_int_sse_cmp):
	For TARGET_XOP bypass SSE comparisons for all supported vector modes.
	* config/i386/mmx.md (*xop_maskcmp<MMXMODEI:mode>3): New insn pattern.
	(*xop_maskcmp<VI_32:mode>3): Ditto.
	(*xop_maskcmp_uns<MMXMODEI:mode>3): Ditto.
	(*xop_maskcmp_uns<VI_32:mode>3): Ditto.

2021-05-27  Richard Earnshaw  <rearnsha@arm.com>

	PR target/100767
	* config/arm/arm.c (arm_configure_build_target): Remove parameter
	opts_set, directly check opts parameters for being non-null.
	(arm_option_restore): Update call to arm_configure_build_target.
	(arm_option_override): Likewise.
	(arm_can_inline_p): Likewise.
	(arm_valid_target_attribute_tree): Likewise.
	* config/arm/arm-c.c (arm_pragma_target_parse): Likewise.
	* config/arm/arm-protos.h (arm_configure_build_target): Adjust
	prototype.

2021-05-27  Aldy Hernandez  <aldyh@redhat.com>

	* vr-values.c (simplify_conversion_using_ranges): Use
	get_range_query instead of get_global_range_query.

2021-05-27  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-range.cc (get_range_global): Move to value-query.cc.
	(gimple_range_global): Same.
	(get_global_range_query): Same.
	(global_range_query::range_of_expr): Same.
	* gimple-range.h (class global_range_query): Move to
	value-query.h.
	(gimple_range_global): Same.
	* tree-ssanames.c (get_range_info): Move to value-query.cc.
	(get_ptr_nonnull): Same.
	* tree-ssanames.h (get_range_info): Remove.
	(get_ptr_nonnull): Remove.
	* value-query.cc (get_ssa_name_range_info): Move from
	tree-ssanames.c.
	(get_ssa_name_ptr_info_nonnull): Same.
	(get_range_global): Move from gimple-range.cc.
	(gimple_range_global): Same.
	(get_global_range_query): Same.
	(global_range_query::range_of_expr): Same.
	* value-query.h (class global_range_query): Move from
	gimple-range.h.
	(gimple_range_global): Same.

2021-05-27  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100637
	* config/i386/mmx.md (uavgv4qi3_ceil): New insn pattern.
	(uavgv2hi3_ceil): Ditto.

2021-05-26  Eric Botcazou  <ebotcazou@adacore.com>

	PR c/100653
	* doc/extend.texi (scalar_storage_order): Rephrase slightly.

2021-05-26  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssanames.c (get_range_info): Merge both copies of
	get_range_info into one that works with irange.
	* tree-ssanames.h (get_range_info): Remove version that works on
	wide_ints.

2021-05-26  Aldy Hernandez  <aldyh@redhat.com>

	* builtins.c (check_nul_terminated_array): Convert to get_range_query.
	(expand_builtin_strnlen): Same.
	(determine_block_size): Same.
	* fold-const.c (expr_not_equal_to): Same.
	* gimple-fold.c (size_must_be_zero_p): Same.
	* gimple-match-head.c: Include gimple-range.h.
	* gimple-pretty-print.c (dump_ssaname_info): Convert to get_range_query.
	* gimple-ssa-warn-restrict.c
	(builtin_memref::extend_offset_range): Same.
	* graphite-sese-to-poly.c (add_param_constraints): Same.
	* internal-fn.c (get_min_precision): Same.
	* ipa-fnsummary.c (set_switch_stmt_execution_predicate): Same.
	* ipa-prop.c (ipa_compute_jump_functions_for_edge): Same.
	* match.pd: Same.
	* tree-data-ref.c (split_constant_offset): Same.
	(dr_step_indicator): Same.
	* tree-dfa.c (get_ref_base_and_extent): Same.
	* tree-scalar-evolution.c (iv_can_overflow_p): Same.
	* tree-ssa-loop-niter.c (refine_value_range_using_guard): Same.
	(determine_value_range): Same.
	(record_nonwrapping_iv): Same.
	(infer_loop_bounds_from_signedness): Same.
	(scev_var_range_cant_overflow): Same.
	* tree-ssa-phiopt.c (two_value_replacement): Same.
	* tree-ssa-pre.c (insert_into_preds_of_block): Same.
	* tree-ssa-reassoc.c (optimize_range_tests_to_bit_test): Same.
	* tree-ssa-strlen.c (handle_builtin_stxncpy_strncat): Same.
	(get_range): Same.
	(dump_strlen_info): Same.
	(set_strlen_range): Same.
	(maybe_diag_stxncpy_trunc): Same.
	(get_len_or_size): Same.
	(handle_integral_assign): Same.
	* tree-ssa-structalias.c (find_what_p_points_to): Same.
	* tree-ssa-uninit.c (find_var_cmp_const): Same.
	* tree-switch-conversion.c (bit_test_cluster::emit): Same.
	* tree-vect-patterns.c (vect_get_range_info): Same.
	(vect_recog_divmod_pattern): Same.
	* tree-vrp.c (intersect_range_with_nonzero_bits): Same.
	(register_edge_assert_for_2): Same.
	(determine_value_range_1): Same.
	* tree.c (get_range_pos_neg): Same.
	* vr-values.c (vr_values::get_lattice_entry): Same.
	(vr_values::update_value_range): Same.
	(simplify_conversion_using_ranges): Same.

2021-05-26  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-ssa-warn-alloca.c (alloca_call_type): Use
	  get_range_query instead of query argument.
	(pass_walloca::execute): Enable and disable global ranger.

2021-05-26  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-ssa-evrp.c (rvrp_folder::rvrp_folder): Call
	enable_ranger.
	(rvrp_folder::~rvrp_folder): Call disable_ranger.
	(hybrid_folder::hybrid_folder): Call enable_ranger.
	(hybrid_folder::~hybrid_folder): Call disable_ranger.

2021-05-26  Aldy Hernandez  <aldyh@redhat.com>

	* function.c (allocate_struct_function): Set cfun->x_range_query.
	* function.h (struct function): Declare x_range_query.
	(get_range_query): New.
	(get_global_range_query): New.
	* gimple-range-cache.cc (ssa_global_cache::ssa_global_cache):
	Remove call to safe_grow_cleared.
	* gimple-range.cc (get_range_global): New.
	(gimple_range_global): Move from gimple-range.h.
	(get_global_range_query): New.
	(global_range_query::range_of_expr): New.
	(enable_ranger): New.
	(disable_ranger): New.
	* gimple-range.h (gimple_range_global): Move to gimple-range.cc.
	(class global_range_query): New.
	(enable_ranger): New.
	(disable_ranger): New.
	* gimple-ssa-evrp.c (evrp_folder::~evrp_folder): Rename
	dump_all_value_ranges to dump.
	* tree-vrp.c (vrp_prop::finalize): Same.
	* value-query.cc (range_query::dump): New.
	* value-query.h (range_query::dump): New.
	* vr-values.c (vr_values::dump_all_value_ranges): Rename to...
	(vr_values::dump): ...this.
	* vr-values.h (class vr_values): Rename dump_all_value_ranges to
	dump and make virtual.

2021-05-26  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.c (ix86_autovectorize_vector_modes):
	Add V4QImode and V16QImode for TARGET_SSE2.
	* doc/sourcebuild.texi (Vector-specific attributes):
	Add vect64 and vect32 description.

2021-05-26  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* gimple-range-gori.cc (range_def_chain::register_dependency):
	Resize m_def_chain when needed.

2021-05-26  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/mve.md (mve_vaddvq_<supf><mode>): Prefix with '@'.
	* config/arm/neon.md (reduc_plus_scal_<mode>): Move to ..
	* config/arm/vec-common.md: .. here. Add support for MVE.

2021-05-26  Jakub Jelinek  <jakub@redhat.com>

	* config/epiphany/epiphany.c (epiphany_print_operand_address): Remove
	register keywords.
	* config/microblaze/microblaze.c (microblaze_legitimize_address,
	call_internal1,
	microblaze_option_override, print_operand): Likewise.
	* config/microblaze/microblaze.md (call_internal_plt,
	call_value_intern_plt, call_value_intern): Likewise.
	* config/arm/aout.h (ASM_OUTPUT_ALIGN): Likewise.
	* config/iq2000/iq2000.md (call_internal1, call_value_internal1,
	call_value_multiple_internal1): Likewise.
	* config/bfin/bfin.c (symbolic_reference_mentioned_p): Likewise.

2021-05-26  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

	* config/arc/arc.c (arc_address_cost, arc_print_operand_address,
	arc_ccfsm_advance, symbolic_reference_mentioned_p,
	arc_raw_symbolic_reference_mentioned_p): Remove register
	keyword.

2021-05-26  Jakub Jelinek  <jakub@redhat.com>

	PR libgomp/100573
	* omp-low.c: Include omp-offload.h.
	(create_omp_child_function): If current_function_decl has
	"omp declare target" attribute and is_gimple_omp_offloaded,
	remove that attribute from the copy of attribute list and
	add "omp target entrypoint" attribute instead.
	(lower_omp_target): Mark .omp_data_sizes.* and .omp_data_kinds.*
	variables for offloading if in omp_maybe_offloaded_ctx.
	* omp-offload.c (pass_omp_target_link::execute): Nullify second
	argument to GOMP_target_data_ext in offloaded code.

2021-05-26  Geng Qi  <gengqi@linux.alibaba.com>

	* config/csky/csky.c (csky_can_change_mode_class): Delete.
	For csky, HF/SF mode use the low bits of VREGS.

2021-05-26  Eric Botcazou  <ebotcazou@adacore.com>

	* gimplify.c (gimplify_decl_expr): Do not clear TREE_READONLY on a
	DECL which is a reference for OMP.

2021-05-26  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/100751
	* doc/gcov.texi: Document that __gcov_dump can be called just
	once and that __gcov_reset resets run-time counters.

2021-05-26  Martin Liska  <mliska@suse.cz>

	* doc/install.texi: Port relevant part from install-old.texi
	and re-generate list of CPUs and systems.

2021-05-26  Martin Liska  <mliska@suse.cz>

	* Makefile.in: Remove it.
	* doc/include/fdl.texi: Update next/previous chapters.
	* doc/install.texi: Likewise.
	* doc/install-old.texi: Removed.

2021-05-26  Geng Qi  <gengqi@linux.alibaba.com>

	* config/csky/csky.c (ck810_legitimate_index_p): Support
	"base + index" with DF mode.
	* config/csky/constraints.md ("Y"): New constraint for memory operands
	without index register.
	* config/csky/csky_insn_fpuv2.md (fpuv3_movdf): Use "Y" instead of "m"
	when mov between memory and general registers, and lower their priority.
	* config/csky/csky_insn_fpuv3.md (fpuv2_movdf): Likewise.

2021-05-26  Geng Qi  <gengqi@linux.alibaba.com>

	* config/csky/csky.c (TARGET_PROMOTE_PROTOTYPES): Delete.

2021-05-26  Geng Qi  <gengqi@linux.alibaba.com>

	* config/csky/csky.md (untyped_call): Emit clobber for return
	registers to mark them used.

2021-05-26  Geng Qi  <gengqi@linux.alibaba.com>

	* config/csky/csky.md (cskyv2_sextend_ldbs): New.

2021-05-26  Andrew Pinski  <apinski@marvell.com>

	* match.pd (x < 0 ? ~y : y): New patterns.

2021-05-26  Andrew Pinski  <apinski@marvell.com>

	* match.pd (A?CST1:CST2): Add simplifcations for A?0:+-1, A?+-1:0,
	A?POW2:0 and A?0:POW2.

2021-05-25  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-gori.cc (class logical_stmt_cache): Delete
	(logical_stmt_cache::logical_stmt_cache ): Delete.
	(logical_stmt_cache::~logical_stmt_cache): Delete.
	(logical_stmt_cache::cache_entry::dump): Delete.
	(logical_stmt_cache::get_range): Delete.
	(logical_stmt_cache::cached_name ): Delete.
	(logical_stmt_cache::same_cached_name): Delete.
	(logical_stmt_cache::cacheable_p): Delete.
	(logical_stmt_cache::slot_diagnostics ): Delete.
	(logical_stmt_cache::dump): Delete.
	(gori_compute_cache::gori_compute_cache): Delete.
	(gori_compute_cache::~gori_compute_cache): Delete.
	(gori_compute_cache::compute_operand_range): Delete.
	(gori_compute_cache::cache_stmt): Delete.
	* gimple-range-gori.h (gori_compute::compute_operand_range): Remove
	virtual.
	(class gori_compute_cache): Delete.

2021-05-25  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range.cc (fold_using_range::range_of_range_op): Use m_gori
	intead of m_cache.
	(fold_using_range::range_of_address): Adjust.
	(fold_using_range::range_of_phi): Adjust.
	* gimple-range.h (class fur_source): Adjust.
	(fur_source::fur_source): Adjust.

2021-05-25  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-gori.cc (gori_compute::expr_range_at_stmt): Rename
	from expr_range_in_bb and adjust.
	(gori_compute::compute_name_range_op): Adjust.
	(gori_compute::optimize_logical_operands): Adjust.
	(gori_compute::compute_logical_operands_in_chain): Adjust.
	(gori_compute::compute_operand1_range): Adjust.
	(gori_compute::compute_operand2_range): Adjust.
	(ori_compute_cache::cache_stmt): Adjust.
	* gimple-range-gori.h (gori_compute): Rename prototype.

2021-05-25  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range.cc (gimple_ranger::range_of_expr): Non-null should be
	checked only after range_of_stmt, not range_on_entry.
	(gimple_ranger::range_on_entry): Check for non-null in any
	predecessor block, if it is not already non-null.
	(gimple_ranger::range_on_exit): DOnt check for non-null after
	range on entry call.
	(gimple_ranger::dump_bb): New.  Split from dump.
	(gimple_ranger::dump): Adjust.
	* gimple-range.h (class gimple_ranger): Adjust.

2021-05-25  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (struct range_timestamp): Delete.
	(class temporal_cache): Adjust.
	(temporal_cache::get_timestamp): Delete.
	(temporal_cache::set_dependency): Delete.
	(temporal_cache::temporal_value): Adjust.
	(temporal_cache::current_p): Take dependencies as params.
	(temporal_cache::set_timestamp): Adjust.
	(temporal_cache::set_always_current): Adjust.
	(ranger_cache::get_non_stale_global_range): Adjust.
	(ranger_cache::register_dependency): Delete.
	* gimple-range-cache.h (class range_cache): Adjust.

2021-05-25  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-gori.cc (range_def_chain::range_def_chain): init
	bitmap obstack.
	(range_def_chain::~range_def_chain): Dispose of obstack rather than
	each individual bitmap.
	(range_def_chain::set_import): New.
	(range_def_chain::get_imports): New.
	(range_def_chain::chain_import_p): New.
	(range_def_chain::register_dependency): Rename from build_def_chain
	and set imports.
	(range_def_chain::def_chain_in_bitmap_p): New.
	(range_def_chain::add_def_chain_to_bitmap): New.
	(range_def_chain::has_def_chain): Just check first depenedence.
	(range_def_chain::get_def_chain): Process imports, use generic
	register_dependency routine.
	(range_def_chain::dump): New.
	(gori_map::gori_map): Allocate import list.
	(gori_map::~gori_map): Release imports.
	(gori_map::exports): Check for past allocated block size.
	(gori_map::imports): New.
	(gori_map::def_chain_in_export_p): Delete.
	(gori_map::is_import_p): New.
	(gori_map::maybe_add_gori): Handle imports.
	(gori_map::dump): Adjust output, add imports.
	(gori_compute::has_edge_range_p): Remove def_chain_in_export call.
	(gori_export_iterator::gori_export_iterator): New.
	(gori_export_iterator::next): New.
	(gori_export_iterator::get_name): New.
	* gimple-range-gori.h (range_def_chain): Add imports and direct
	dependecies via struct rdc.
	(range_def_chain::depend1): New.
	(range_def_chain::depend2): New.
	(class gori_map): Adjust.
	(FOR_EACH_GORI_IMPORT_NAME): New.
	(FOR_EACH_GORI_EXPORT_NAME): New.
	(class gori_export_iterator): New.

2021-05-25  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (ranger_cache::ranger_cache):  Move initial
	export cache filling to here.
	* gimple-range-gori.cc (gori_compute::gori_compute) : From Here.

2021-05-25  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-gori.cc (range_def_chain): Move to gimple-range-gori.h.
	(gori_map): Move to gimple-range-gori.h.
	(gori_compute::gori_compute): Adjust.
	(gori_compute::~gori_compute): Delete.
	(gori_compute::compute_operand_range_switch): Adjust.
	(gori_compute::compute_operand_range): Adjust.
	(gori_compute::compute_logical_operands): Adjust.
	(gori_compute::has_edge_range_p ): Adjust.
	(gori_compute::set_range_invariant): Delete.
	(gori_compute::dump): Adjust.
	(gori_compute::outgoing_edge_range_p): Adjust.
	* gimple-range-gori.h (class range_def_chain): Relocate here.
	(class gori_map): Relocate here.
	(class gori_compute): Inherit from gori_map, and adjust.

2021-05-25  Aldy Hernandez  <aldyh@redhat.com>

	* value-range.cc (range_tests_legacy): Use
	build_nonstandard_integer_type instead of int and short.

2021-05-25  Eric Botcazou  <ebotcazou@adacore.com>

	* gimplify.c (gimplify_decl_expr): Clear TREE_READONLY on the DECL
	when really creating an initialization statement for it.

2021-05-25  Eric Botcazou  <ebotcazou@adacore.com>

	* tree-inline.c (setup_one_parameter): Fix thinko in new condition.

2021-05-25  Kito Cheng  <kito.cheng@sifive.com>

	* config/riscv/riscv.h (ASM_SPEC): Pass -mno-relax.

2021-05-25  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/92860
	PR target/99592
	* optc-save-gen.awk: Remove exceptions.

2021-05-25  Martin Liska  <mliska@suse.cz>

	* asan.h (sanitize_coverage_p): New function.
	* doc/extend.texi: Document it.
	* fold-const.c (fold_range_test): Use sanitize_flags_p
	instead of flag_sanitize_coverage.
	(fold_truth_andor): Likewise.
	* sancov.c: Likewise.
	* tree-ssa-ifcombine.c (ifcombine_ifandif): Likewise.
	* ipa-inline.c (sanitize_attrs_match_for_inline_p): Handle
	-fsanitize-coverage when inlining.

2021-05-25  Cooper Qu  <cooper.qu@linux.alibaba.com>

	* config/csky/csky-modes.def : Fix copyright.

2021-05-25  Cooper Qu  <cooper.qu@linux.alibaba.com>

	* config/csky/csky-modes.def : Amend copyright.
	* config/csky/csky_insn_fpuv2.md : Likewise.
	* config/csky/csky_insn_fpuv3.md : Likewise.

2021-05-25  Richard Biener  <rguenther@suse.de>

	PR middle-end/100727
	* calls.c (initialize_argument_information): Explicitely test
	for WITH_SIZE_EXPR.
	* gimple-expr.c (mark_addressable): Skip outer WITH_SIZE_EXPR.

2021-05-25  Geng Qi  <gengqi@linux.alibaba.com>

	* config/csky/csky.h (FRAME_POINTER_REGNUM): Use
	HARD_FRAME_POINTER_REGNUM and FRAME_POINTER_REGNUM instead of
	the signle definition. The signle definition may not work well
	at simplify_subreg_regno().
	(HARD_FRAME_POINTER_REGNUM): New.
	(ELIMINABLE_REGS): Add for HARD_FRAME_POINTER_REGNUM.
	* config/csky/csky.c (get_csky_live_regs, csky_can_eliminate,
	csky_initial_elimination_offset, csky_expand_prologue,
	csky_expand_epilogue): Add for HARD_FRAME_POINTER_REGNUM.

2021-05-25  Geng Qi  <gengqi@linux.alibaba.com>

	* config/csky/csky.c (csky_option_override):
	Init csky_arch_isa_features[] in advance, so TARGET_DSP
	and TARGET_DIV can be set well.

2021-05-25  Geng Qi  <gengqi@linux.alibaba.com>

	* config/csky/constraints.md ("l", "h"): Delete.
	* config/csky/csky.h (reg_class, REG_CLASS_NAMES,
	REG_CLASS_CONTENTS):  Delete LO_REGS and HI_REGS.
	* config/csky/csky.c (regno_reg_classm,
	csky_secondary_reload, csky_register_move_cost):
	Use HILO_REGS instead of LO_REGS and HI_REGS.

2021-05-25  Geng Qi  <gengqi@linux.alibaba.com>

	* config/csky/constraints.md ("W"): New constriant for mem operand
	with base reg, index register.
	("Q"): Renamed and modified "csky_valid_fpuv2_mem_operand" to
	"csky_valid_mem_constraint_operand" to deal with both "Q" and "W"
	constraint.
	("Dv"): New constraint for const double value that can be used at
	fmovi instruction.
	* config/csky/csky-modes.def (HFmode): New mode.
	* config/csky/csky-protos.h (csky_valid_fpuv2_mem_operand): Rename
	to "csky_valid_mem_constraint_operand" and support new constraint
	"W".
	(csky_get_movedouble_length): New.
	(fpuv3_output_move): New.
	(fpuv3_const_double): New.
	* config/csky/csky.c (csky_option_override): New arch CK860 with fpv3.
	(decompose_csky_address): Refine.
	(csky_print_operand): New "CONST_DOUBLE" operand.
	(csky_output_move): Support fpv3 instructions.
	(csky_get_movedouble_length): New.
	(fpuv3_output_move): New.
	(fpuv3_const_double): New.
	(csky_emit_compare): Cover float comparsion.
	(csky_emit_compare_float): Refine.
	(csky_vaild_fpuv2_mem_operand): Rename to
	"csky_valid_mem_constraint_operand" and support new constraint "W".
	(ck860_rtx_costs): New.
	(csky_rtx_costs): Add the cost calculation of CK860.
	(regno_reg_class): New vregs for fpuv3.
	(csky_dbx_regno): Likewise.
	(csky_cpu_cpp_builtins): New builtin macro for fpuv3.
	(csky_conditional_register_usage): Suporrot fpuv3.
	(csky_dwarf_register_span): Suporrot fpuv3.
	(csky_init_builtins, csky_mangle_type): Support "__fp16" type.
	(ck810_legitimate_index_p): Support fp16.
	* config/csky/csky.h (TARGET_TLS): ADD CK860.
	(CSKY_VREG_P, CSKY_VREG_LO_P, CSKY_VREG_HI_P): Support fpuv3.
	(TARGET_SINGLE_FPU): Support fpuv3.
	(TARGET_SUPPORT_FPV3): New.
	(FIRST_PSEUDO_REGISTER): Change to 202 to hold the new fpuv3 registers.
	(FIXED_REGISTERS, CALL_REALLY_USED_REGISTERS, REGISTER_NAMES,
	 REG_CLASS_CONTENTS): Support fpuv3.
	* config/csky/csky.md (movsf): Move to cksy_insn_fpu.md and refine.
	(csky_movsf_fpv2): Likewise.
	(ck801_movsf): Likewise.
	(csky_movsf): Likewise.
	(movdf): Likewise.
	(csky_movdf_fpv2): Likewise.
	(ck801_movdf): Likewise.
	(csky_movdf): Likewise.
	(movsicc): Refine. Use "comparison_operatior" instead of
	"ordered_comparison_operatior".
	(addsicc): Likewise.
	(CSKY_FIRST_VFP3_REGNUM, CSKY_LAST_VFP3_REGNUM): New constant.
	(call_value_internal_vh): New.
	* config/csky/csky_cores.def (CK860): New arch and cpu.
	(fpv3_hf): New.
	(fpv3_hsf): New.
	(fpv3_sdf): New.
	(fpv3): New.
	* config/csky/csky_insn_fpu.md: Refactor. Separate all float patterns
	into emit-patterns and match-patterns, remain the emit-patterns here,
	and move the match-patterns to csky_insn_fpuv2.md or
	csky_insn_fpuv3.md.
	* config/csky/csky_insn_fpuv2.md: New file for fpuv2 instructions.
	* config/csky/csky_insn_fpuv3.md: New file and new patterns for fpuv3
	isntructions.
	* config/csky/csky_isa.def (fcr): New.
	(fpv3_hi): New.
	(fpv3_hf): New.
	(fpv3_sf): New.
	(fpv3_df): New.
	(CK860): New definition for ck860.
	* config/csky/csky_tables.opt (ck860): New processors ck860,
	ck860f. And new arch ck860.
	(fpv3_hf): New.
	(fpv3_hsf): New.
	(fpv3_hdf): New.
	(fpv3): New.
	* config/csky/predicates.md (csky_float_comparsion_operator): Delete
	"geu", "gtu", "leu", "ltu", which will never appear at float comparison.
	* config/csky/t-csky-elf: Support 860.
	* config/csky/t-csky-linux: Likewise.
	* doc/md.texi: Add "Q" and "W" constraints for C-SKY.

2021-05-24  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/genfusion.pl (gen_logical_addsubf): Refactor to
	add generation of logical-add and add-logical fusion pairs.
	* config/rs6000/rs6000-cpus.def: Add new fusion to ISA 3.1 mask
	and powerpc mask.
	* config/rs6000/rs6000.c (rs6000_option_override_internal): Turn on
	logical-add and add-logical fusion by default.
	* config/rs6000/rs6000.opt: Add -mpower10-fusion-logical-add and
	-mpower10-fusion-add-logical options.
	* config/rs6000/fusion.md: Regenerate file.

2021-05-24  Aldy Hernandez  <aldyh@redhat.com>

	* value-range.cc (irange::legacy_equal_p): Check type when
	comparing VR_VARYING types.
	(range_tests_legacy): Test comparing VARYING ranges of different
	sizes.

2021-05-24  Wilco Dijkstra  <wdijkstr@arm.com>

	* config/aarch64/aarch64.c (neoversen1_tunings):
	Enable AARCH64_EXTRA_TUNE_CHEAP_SHIFT_EXTEND.

2021-05-24  Wilco Dijkstra  <wdijkstr@arm.com>

	* config/aarch64/aarch64.c (aarch64_classify_symbol): Use GOT for
	extern weak symbols.  Limit symbol offsets for non-GOT symbols with
	PIC/PIE.

2021-05-24  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/neon.md (vec_load_lanesxi<mode>)
	(vec_store_lanexoi<mode>): Move ...
	* config/arm/vec-common.md: here.

2021-05-24  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/neon.md (vec_load_lanesoi<mode>)
	(vec_store_lanesoi<mode>): Move ...
	* config/arm/vec-common.md: here.

2021-05-24  liuhongt  <hongtao.liu@intel.com>

	PR target/100660
	* config/i386/i386.c (ix86_gimple_fold_builtin): Replacing
	stmt with GIMPLE_NOP when lhs doesn't exist.

2021-05-23  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100722
	* config/i386/mmx.md (*push<VI_32:mode>2_rex64):
	New instruction pattern.
	(*push<VI_32:mode>2): Ditto.
	(push splitter for SSE registers): New splitter.

2021-05-23  Andrew Pinski  <apinski@marvell.com>

	* match.pd ((A & C) != 0 ? D : 0): Limit to non pointer types.

2021-05-22  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/genfusion.pl (gen_addadd): Fix incorrect attr types.
	* config/rs6000/fusion.md: Regenerate file.

2021-05-21  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/genfusion.pl (gen_addadd): New function.
	* config/rs6000/fusion.md: Regenerate file.
	* config/rs6000/rs6000-cpus.def: Add
	OPTION_MASK_P10_FUSION_2ADD to masks.
	* config/rs6000/rs6000.c (rs6000_option_override_internal):
	Handle default value of OPTION_MASK_P10_FUSION_2ADD.
	* config/rs6000/rs6000.opt: Add -mpower10-fusion-2add.

2021-05-21  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/99928
	* tree.h (OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT_TARGET): Define.
	* gimplify.c (enum gimplify_omp_var_data): Fix up
	GOVD_MAP_HAS_ATTACHMENTS value, add GOVD_FIRSTPRIVATE_IMPLICIT.
	(omp_lastprivate_for_combined_outer_constructs): If combined target
	has GOVD_FIRSTPRIVATE_IMPLICIT set for the decl, change it to
	GOVD_MAP | GOVD_SEEN.
	(gimplify_scan_omp_clauses): Set GOVD_FIRSTPRIVATE_IMPLICIT for
	firstprivate clauses with OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT.
	(gimplify_adjust_omp_clauses): For firstprivate clauses with
	OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT either clear that bit and
	OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT_TARGET too, or remove it and
	let it be replaced by implicit map clause.

2021-05-21  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/99928
	* gimplify.c (omp_lastprivate_for_combined_outer_constructs): New
	function.
	(gimplify_scan_omp_clauses) <case OMP_CLAUSE_LASTPRIVATE>: Use it.
	(gimplify_omp_for): Likewise.

2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>

	PR middle-end/90115
	* omp-low.c (oacc_privatization_candidate_p): Reject 'static',
	'external' in blocks.

2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>

	PR middle-end/90115
	* flag-types.h (enum openacc_privatization): New.
	* params.opt (-param=openacc-privatization): New.
	* doc/invoke.texi (openacc-privatization): Document it.
	* omp-general.h (get_openacc_privatization_dump_flags): New
	function.
	* omp-low.c (oacc_privatization_candidate_p): Add diagnostics.
	* omp-offload.c (execute_oacc_device_lower)
	<IFN_UNIQUE_OACC_PRIVATE>: Re-work diagnostics.
	* target.def (goacc.adjust_private_decl): Add 'location_t'
	parameter.
	* doc/tm.texi: Regenerate.
	* config/gcn/gcn-protos.h (gcn_goacc_adjust_private_decl): Adjust.
	* config/gcn/gcn-tree.c (gcn_goacc_adjust_private_decl): Likewise.
	* config/nvptx/nvptx.c (nvptx_goacc_adjust_private_decl):
	Likewise.  Preserve it for...
	(nvptx_goacc_expand_var_decl): ... use here.

2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>

	* doc/sourcebuild.texi (Other attributes): Document '__OPTIMIZE__'
	DejaGnu selector.

2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>

	PR middle-end/90115
	* omp-low.c (oacc_privatization_candidate_p): New function.
	(oacc_privatization_scan_clause_chain)
	(oacc_privatization_scan_decl_chain): Use it.  Also
	'gcc_checking_assert' that we're not seeing duplicates.

2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>

	PR middle-end/90115
	* omp-offload.c (execute_oacc_device_lower): Skip processing if no
	work to be done.

2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>

	PR middle-end/90115
	* omp-offload.c (execute_oacc_device_lower): Explain.

2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>

	PR middle-end/90115
	* omp-offload.c (execute_oacc_device_lower)
	<IFN_UNIQUE_OACC_PRIVATE>: Diagnose and handle for 'level == -1'
	case, too.
	* internal-fn.c (expand_UNIQUE): Don't expect
	'IFN_UNIQUE_OACC_PRIVATE'.

2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>

	PR middle-end/90115
	* omp-low.c (lower_omp_for): Don't evaluate OpenMP 'for' clauses.

2021-05-21  Thomas Schwinge  <thomas@codesourcery.com>

	PR middle-end/90115
	* config/nvptx/nvptx.c (nvptx_goacc_adjust_private_decl)
	(nvptx_goacc_expand_var_decl): Tighten.

2021-05-21  Julian Brown  <julian@codesourcery.com>
	    Chung-Lin Tang  <cltang@codesourcery.com>
	    Thomas Schwinge  <thomas@codesourcery.com>

	PR middle-end/90115
	* doc/tm.texi.in (TARGET_GOACC_EXPAND_VAR_DECL)
	(TARGET_GOACC_ADJUST_PRIVATE_DECL): Add documentation hooks.
	* doc/tm.texi: Regenerate.
	* expr.c (expand_expr_real_1): Expand decls using the
	expand_var_decl OpenACC hook if defined.
	* internal-fn.c (expand_UNIQUE): Handle IFN_UNIQUE_OACC_PRIVATE.
	* internal-fn.h (IFN_UNIQUE_CODES): Add OACC_PRIVATE.
	* omp-low.c (omp_context): Add oacc_privatization_candidates
	field.
	(lower_oacc_reductions): Add PRIVATE_MARKER parameter.  Insert
	before fork.
	(lower_oacc_head_tail): Add PRIVATE_MARKER parameter.  Modify
	private marker's gimple call arguments, and pass it to
	lower_oacc_reductions.
	(oacc_privatization_scan_clause_chain)
	(oacc_privatization_scan_decl_chain, lower_oacc_private_marker):
	New functions.
	(lower_omp_for, lower_omp_target, lower_omp_1): Use these.
	* omp-offload.c (convert.h): Include.
	(oacc_loop_xform_head_tail): Treat private-variable markers like
	fork/join when transforming head/tail sequences.
	(struct var_decl_rewrite_info): Add struct.
	(oacc_rewrite_var_decl, is_sync_builtin_call): New functions.
	(execute_oacc_device_lower): Support rewriting gang-private
	variables using target hook, and fix up addr_expr and var_decl
	nodes afterwards.
	* target.def (adjust_private_decl, expand_var_decl): New hooks.
	* config/gcn/gcn-protos.h (gcn_goacc_adjust_gangprivate_decl):
	Rename to...
	(gcn_goacc_adjust_private_decl): ...this.
	* config/gcn/gcn-tree.c (gcn_goacc_adjust_gangprivate_decl):
	Rename to...
	(gcn_goacc_adjust_private_decl): ...this. Add LEVEL parameter.
	* config/gcn/gcn.c (TARGET_GOACC_ADJUST_GANGPRIVATE_DECL): Rename
	definition using gcn_goacc_adjust_gangprivate_decl...
	(TARGET_GOACC_ADJUST_PRIVATE_DECL): ...to this, using
	gcn_goacc_adjust_private_decl.
	* config/nvptx/nvptx.c (tree-pretty-print.h): Include.
	(gang_private_shared_size): New global variable.
	(gang_private_shared_align): Likewise.
	(gang_private_shared_sym): Likewise.
	(gang_private_shared_hmap): Likewise.
	(nvptx_option_override): Initialize these.
	(nvptx_file_end): Output gang_private_shared_sym.
	(nvptx_goacc_adjust_private_decl, nvptx_goacc_expand_var_decl):
	New functions.
	(nvptx_set_current_function): Clear gang_private_shared_hmap.
	(TARGET_GOACC_ADJUST_PRIVATE_DECL): Define hook.
	(TARGET_GOACC_EXPAND_VAR_DECL): Likewise.

2021-05-21  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/i386-modes.def (MAX_BITSIZE_MODE_ANY_INT): Removed.

2021-05-21  Richard Biener  <rguenther@suse.de>
	    H.J. Lu  <hjl.tools@gmail.com>

	PR middle-end/90773
	* expr.c (expand_constructor): Elide expand_constructor if
	move by pieces is preferred.

2021-05-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-builtins.c (aarch64_call_properties):
	Take a flag and mode value as arguments.
	(aarch64_modifies_global_state_p): Likewise.
	(aarch64_reads_global_state_p): Likewise.
	(aarch64_could_trap_p): Likewise.
	(aarch64_get_attributes): Likewise.
	(aarch64_init_simd_builtins): Adjust callsite of above.
	(aarch64_init_fcmla_laneq_builtins): Use aarch64_get_attributes to get
	function attributes to apply to builtins.
	(aarch64_init_crc32_builtins): Likewise.
	(aarch64_init_builtin_rsqrt): Likewise.

2021-05-21  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/rs6000.md (define_attr "type"): Add types for fusion.
	* config/rs6000/genfusion.pl (gen_ld_cmpi_p10): Use new fusion types.
	(gen_2logical): Use new fusion types.
	* config/rs6000/fusion.md: Regenerate.

2021-05-21  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100637
	* config/i386/i386-expand.c (ix86_expand_sse_movcc):
	Handle V4QI and V2HI modes.
	(ix86_expand_sse_movcc): Ditto.
	* config/i386/mmx.md (*<sat_plusminus:insn><VI_32:mode>3):
	New instruction pattern.
	(*eq<VI_32:mode>3): Ditto.
	(*gt<VI_32:mode>3): Ditto.
	(*xop_pcmov_<VI_32:mode>): Ditto.
	(mmx_pblendvb32): Ditto.
	(mmx_pblendvb64): Rename from mmx_pblendvb.
	(vec_cmp<VI_32:mode><VI_32:mode>): New expander.
	(vec_cmpu<VI_32:mode><VI_32:mode>): Ditto.
	(vcond<VI_32:mode><VI_32:mode>): Ditto.
	(vcondu<VI_32:mode><VI_32:mode>): Ditto.
	(vcond_mask_<VI_32:mode><VI_32:mode>): Ditto.

2021-05-21  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/94589
	* tree-ssa-phiopt.c (spaceship_replacement): For integral rhs1 and
	rhs2, treat x <= 4 equivalently to x < 5 etc.  In cmp1 and cmp2 (if
	not the same as cmp3) treat <= the same as < and >= the same as >.
	Don't require that cond2_phi_edge is true edge, instead take
	false/true edges into account based on cmp1/cmp2 comparison kinds.

2021-05-21  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100637
	* config/i386/mmx.md (SMAXMIN_MMXMODEI): New mode iterator.
	(<smaxmin:code><SMAXMIN_MMXMODEI:mode>3): Macroize expander
	from <smaxmin:code>v4hi3> and <smaxmin:code><MMXMODE14:mode>3
	using SMAXMIN_MMXMODEI mode iterator.
	(*<smaxmin:code>v4qi3): New insn pattern.
	(*<smaxmin:code>v2hi3): Ditto.
	(SMAXMIN_VI_32): New mode iterator.
	(<smaxmin:code><SMAXMIN_VI_32>mode3): New expander.
	(UMAXMIN_MMXMODEI): New mode iterator.
	(<umaxmin:code><UMAXMIN_MMXMODEI:mode>3): Macroize expander
	from <umaxmin:code>v8qi3> and <umaxmin:code><MMXMODE24:mode>3
	using UMAXMIN_MMXMODEI mode iterator.
	(*<umaxmin:code>v4qi3): New insn pattern.
	(*<umaxmin:code>v2hi3): Ditto.
	(UMAXMIN_VI_32): New mode iterator.
	(<umaxmin:code><UMAXMIN_VI_32>mode3): New expander.
	(abs<VI_32:mode>2): New insn pattern.
	(ssse3_abs<MMXMODEI:mode>2, abs<MMXMODEI:mode>2): Move from ...
	* config/i386/sse.md: ... here.

2021-05-20  Clement Chigot  <clement.chigot@atos.net>
	    David Edelsohn  <dje.gcc@gmail.com>

	* collect2.c (scan_prog_file): Issue non-fatal warning for
	non-COFF files.

2021-05-20  Jonathan Wakely  <jwakely@redhat.com>

	* doc/invoke.texi (-Wno-c++11-extensions)
	(-Wno-c++14-extensions, -Wno-c++17-extensions)
	(-Wno-c++20-extensions, -Wno-c++23-extensions): Document
	new options.

2021-05-20  Indu Bhagat  <indu.bhagat@oracle.com>

	* config/c6x/c6x.c (c6x_output_file_unwind): Use dwarf_debuginfo_p.
	* config/darwin.c (darwin_override_options): Likewise.
	* config/i386/cygming.h (DBX_REGISTER_NUMBER): Likewise.
	* config/i386/darwin.h (DBX_REGISTER_NUMBER): Likewise.
	(DWARF2_FRAME_REG_OUT): Likewise.
	* config/mips/mips.c (mips_output_filename): Likewise.
	* config/rs6000/rs6000.c (rs6000_xcoff_declare_function_name):
	Likewise.
	(rs6000_dbx_register_number): Likewise.
	* dbxout.c: Include flags.h.
	* dwarf2cfi.c (cfi_label_required_p): Likewise.
	(dwarf2out_do_frame): Likewise.
	* except.c: Include flags.h.
	* final.c (dwarf2_debug_info_emitted_p): Likewise.
	(final_scan_insn_1): Likewise.
	* flags.h (dwarf_debuginfo_p): New function declaration.
	* opts.c (dwarf_debuginfo_p): New function definition.
	* targhooks.c (default_debug_unwind_info): Use dwarf_debuginfo_p.
	* toplev.c (process_options): Likewise.

2021-05-20  Indu Bhagat  <indu.bhagat@oracle.com>

	* common.opt: Change type to support bitmasks.
	* flag-types.h (enum debug_info_type): Rename enumerator constants.
	(NO_DEBUG): New bitmask.
	(DBX_DEBUG): Likewise.
	(DWARF2_DEBUG): Likewise.
	(XCOFF_DEBUG): Likewise.
	(VMS_DEBUG): Likewise.
	(VMS_AND_DWARF2_DEBUG): Likewise.
	* flags.h (debug_set_to_format): New function declaration.
	(debug_set_count): Likewise.
	(debug_set_names): Likewise.
	* opts.c (debug_type_masks): Array of bitmasks for debug formats.
	(debug_set_to_format): New function definition.
	(debug_set_count): Likewise.
	(debug_set_names): Likewise.
	(set_debug_level): Update access to debug_type_names.
	* toplev.c: Likewise.

2021-05-20  Martin Sebor  <msebor@redhat.com>

	PR middle-end/100684
	* tree-ssa-ccp.c (pass_post_ipa_warn::execute): Handle C++ lambda.

2021-05-20  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100701
	* config/i386/i386.md (isa): Remove x64_bmi.
	(enabled): Remove x64_bmi.
	* config/i386/mmx.md (mmx_andnot<MMXMODEI:mode>3):
	Remove general register alternative.
	(*andnot<VI_32:mode>3): Ditto.
	(*mmx_<any_logic:code><MMXMODEI:mode>3): Ditto.
	(*<any_logic:code><VI_32:mode>3): Ditto.

2021-05-20  Kewen Lin  <linkw@linux.ibm.com>

	* config/arm/arm.c: Include head files tree-vectorizer.h and
	cfgloop.h.

2021-05-20  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100637
	* config/i386/mmx.md (Yv_Yw): Revert adding V4QI and V2HI modes.
	(*<plusminus:insn><VI_32:mode>3): Use Yw instad of <Yv_Yw> constrint.
	(<s>mulv4hi3_highpart): New expander.
	(*<s>mulv2hi3_highpart): New insn pattern.
	(<s>mulv2hi3_higpart): New expander.
	(*<any_shift:insn>v2hi3): New insn pattern.
	(<any_shift:insn>v2hi3): New expander.
	* config/i386/sse.md (smulhrsv2hi3): New expander.
	(*smulhrsv2hi3): New insn pattern.

2021-05-20  Kewen Lin  <linkw@linux.ibm.com>

	* doc/invoke.texi (vect-inner-loop-cost-factor): Document new
	parameter.
	* params.opt (vect-inner-loop-cost-factor): New.
	* targhooks.c (default_add_stmt_cost): Replace hardcoded factor
	50 with LOOP_VINFO_INNER_LOOP_COST_FACTOR, include head file
	tree-vectorizer.h and its required ones.
	* config/aarch64/aarch64.c (aarch64_add_stmt_cost): Replace
	hardcoded factor 50 with LOOP_VINFO_INNER_LOOP_COST_FACTOR.
	* config/arm/arm.c (arm_add_stmt_cost): Likewise.
	* config/i386/i386.c (ix86_add_stmt_cost): Likewise.
	* config/rs6000/rs6000.c (rs6000_add_stmt_cost): Likewise.
	* tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
	Likewise.
	(_loop_vec_info::_loop_vec_info): Init inner_loop_cost_factor.
	* tree-vectorizer.h (_loop_vec_info): Add inner_loop_cost_factor.
	(LOOP_VINFO_INNER_LOOP_COST_FACTOR): New macro.

2021-05-20  Christophe Lyon  <christophe.lyon@linaro.org>
	    Torbjörn Svensson  <torbjorn.svensson@st.com>

	PR c/42579
	* doc/cpp.texi (Common Predefined Macros): Document __FILE_NAME__.

2021-05-20  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/99928
	* gimplify.c (gimplify_scan_omp_clauses) <case OMP_CLAUSE_LINEAR>: For
	explicit linear clause when combined with target, make it map(tofrom:)
	instead of no clause or firstprivate.

2021-05-20  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/94589
	* match.pd ((X & Y) == X -> (X & ~Y) == 0): Simplify even in presence
	of integral conversions.

2021-05-19  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range.cc (fur_source::get_operand): New.
	(gimple_range_fold): Delete.
	(fold_using_range::fold_stmt): Move from gimple_ranger::calc_stmt.
	(fold_using_range::range_of_range_op): Move from gimple_ranger.
	(fold_using_range::range_of_address): Ditto.
	(fold_using_range::range_of_phi): Ditto.
	(fold_using_range::range_of_call): Ditto.
	(fold_using_range::range_of_builtin_ubsan_call): Move from
	range_of_builtin_ubsan_call.
	(fold_using_range::range_of_builtin_call): Move from
	range_of_builtin_call.
	(gimple_ranger::range_of_builtin_call): Delete.
	(fold_using_range::range_of_cond_expr): Move from gimple_ranger.
	(gimple_ranger::fold_range_internal): New.
	(gimple_ranger::range_of_stmt): Use new fold_using_range API.
	(fold_using_range::range_of_ssa_name_with_loop_info): Move from
	gimple_ranger.  Improve ranges of SSA_NAMES when possible.
	* gimple-range.h (gimple_ranger): Remove various range_of routines.
	(class fur_source): New.
	(class fold_using_range): New.
	(fur_source::fur_source): New.
	(fold_range): New.
	* vr-values.c (vr_values::extract_range_basic): Use fold_using_range
	instead of range_of_builtin_call.

2021-05-19  Jonathan Wakely  <jwakely@redhat.com>

	* doc/cpp.texi (Common Predefined Macros): Update documentation
	for the __GXX_EXPERIMENTAL_CXX0X__ macro.

2021-05-19  Alex Coplan  <alex.coplan@arm.com>

	PR target/100333
	* config/arm/arm.md (nonsecure_call_internal): Always ensure
	callee's address is in a register.

2021-05-19  Geng Qi  <gengqi@linux.alibaba.com>

	* common/config/riscv/riscv-common.c
	(riscv_subset_list::parsing_subset_version): Properly parse the letter
	'p' in '-march'.
	(riscv_subset_list::parse_std_ext,
	 riscv_subset_list::parse_multiletter_ext): To handle errors generated
	in riscv_subset_list::parsing_subset_version.

2021-05-19  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd.md: Use "neon_move_narrow_q"
	type attribute in patterns generating XTN(2).

2021-05-19  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_simd_vec_pack_trunc_<mode>):
	Remove as duplicate of...
	(aarch64_xtn<mode>): This.
	(aarch64_xtn2<mode>_le): Move position in file.
	(aarch64_xtn2<mode>_be): Move position in file.
	(aarch64_xtn2<mode>): Move position in file.
	(vec_pack_trunc_<mode>): Define as an expander.

2021-05-19  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Split builtin
	generation for aarch64_<sur>q<r>shr<u>n_n<mode> pattern into
	separate scalar and vector generators.
	* config/aarch64/aarch64-simd.md
	(aarch64_<sur>q<r>shr<u>n_n<mode>): Define as an expander and
	split into...
	(aarch64_<sur>q<r>shr<u>n_n<mode>_insn_le): This and...
	(aarch64_<sur>q<r>shr<u>n_n<mode>_insn_be): This.
	* config/aarch64/iterators.md: Define SD_HSDI iterator.

2021-05-19  Jonathn Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd.md: Use UNSPEC_SQXTUN instead
	of UNSPEC_SQXTUN2.
	* config/aarch64/iterators.md: Remove UNSPEC_SQXTUN2.

2021-05-19  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_<sur>q<r>shr<u>n2_n<mode>):
	Implement as an expand emitting a big/little endian
	instruction pattern.
	(aarch64_<sur>q<r>shr<u>n2_n<mode>_insn_le): Define.
	(aarch64_<sur>q<r>shr<u>n2_n<mode>_insn_be): Define.

2021-05-19  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_<sur><addsub>hn2<mode>):
	Implement as an expand emitting a big/little endian
	instruction pattern.
	(aarch64_<sur><addsub>hn2<mode>_insn_le): Define.
	(aarch64_<sur><addsub>hn2<mode>_insn_be): Define.
	* config/aarch64/iterators.md: Remove UNSPEC_[R]ADDHN2 and
	UNSPEC_[R]SUBHN2 unspecs and ADDSUBHN2 iterator.

2021-05-19  Richard Biener  <rguenther@suse.de>

	PR middle-end/100672
	* fold-const.c (fold_negate_expr_1): Use element_precision.
	(negate_expr_p): Likewise.

2021-05-19  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/aarch64/iterators.md (SVE_PRED_LOAD): New iterator.
	(pred_load): New int attribute.
	* config/aarch64/aarch64-sve.md
	(aarch64_load_<ANY_EXTEND:optab><SVE_HSDI:mode><SVE_PARTIAL_I:mode>): Use
	SVE_PRED_LOAD enum iterator and corresponding pred_load attribute.
	* config/aarch64/aarch64-sve-builtins-base.cc (expand): Update call to
	code_for_aarch64_load.

2021-05-19  Richard Biener  <rguenther@suse.de>

	* cfgexpand.c (discover_nonconstant_array_refs_r): Make
	sure TARGET_MEM_REF bases are expanded as memory.
	* tree-ssa-operands.c (operands_scanner::get_tmr_operands):
	Do not mark TARGET_MEM_REF bases addressable.
	* tree-ssa.c (non_rewritable_mem_ref_base): Handle
	TARGET_MEM_REF bases as never rewritable.
	* gimple-walk.c (walk_stmt_load_store_addr_ops): Do not
	walk TARGET_MEM_REF bases as address-takens.
	* tree-ssa-dce.c (ref_may_be_aliased): Handle TARGET_MEM_REF.

2021-05-19  Richard Biener  <rguenther@suse.de>

	* builtins.c (get_object_alignment_1): Strip outer
	WITH_SIZE_EXPR.
	* tree-dfa.c (get_ref_base_and_extent): Handle outer
	WITH_SIZE_EXPR for size processing and process the
	containing ref.
	* tree-ssa-alias.c (ao_ref_base_alias_set): Strip
	outer WITH_SIZE_EXPR.
	(ao_ref_base_alias_ptr_type): Likewise.
	(refs_may_alias_p_2): Allow WITH_SIZE_EXPR in ref->ref
	and handle that accordingly, stripping it for the
	core alias workers.
	* tree.c (get_base_address): Handle WITH_SIZE_EXPR by
	looking through it instead of returning NULL.

2021-05-19  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/100576
	* builtins.c (check_read_access): Convert bound to size_type_node if
	non-NULL.

2021-05-19  Richard Biener  <rguenther@suse.de>

	* tree-cfg.c (verify_types_in_gimple_min_lval): Inline...
	(verify_types_in_gimple_reference): ... here.  Sanitize.
	(verify_gimple_call): Verify references in LHS and arguments.
	(verify_gimple_assign_single): Reject WITH_SIZE_EXPR.

2021-05-19  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.h (VALID_INT_MODE_P):
	Add V8QI, V4HI and V2SI modes for TARGET_64BIT.
	* config/i386/i386.md (isa): Add x64_bmi.
	(enabled): Handle x64_bmi.
	* config/i386/mmx.md (mmx_andnot<MMXMODEI:mode>3):
	Add alternative using 64bit general registers.
	(*mmx_<any_logic:code><MMXMODEI:mode>3): Ditto.

2021-05-19  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/99928
	* tree.h (OMP_MASTER_COMBINED): Define.
	* gimplify.c (gimplify_scan_omp_clauses): Rewrite lastprivate
	handling for outer combined/composite constructs to a loop.
	Handle lastprivate on combined target.
	(gimplify_expr): Formatting fix.

2021-05-19  Xionghu Luo  <luoxhu@linux.ibm.com>

	* passes.def: Add sink_code pass before store_merging.
	* tree-ssa-sink.c (pass_sink_code:clone): New.

2021-05-18  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/freebsd64.h (ADJUST_FIELD_ALIGN): Remove call to
	rs6000_special_adjust_field_align_p.
	* config/rs6000/linux64.h (ADJUST_FIELD_ALIGN): Likewise.
	* config/rs6000/rs6000-call.c (rs6000_function_arg_boundary):
	Remove ABI warning.
	(rs6000_function_arg): Likewise.
	* config/rs6000/rs6000-protos.h
	(rs6000_special_adjust_field_align_p): Remove prototype.
	* config/rs6000/rs6000.c (rs6000_special_adjust_field_align_p):
	Remove.
	* config/rs6000/sysv4.h (ADJUST_FIELD_ALIGN): Remove call to
	rs6000_special_adjust_field_align_p.

2021-05-18  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100637
	* config/i386/i386.h (VALID_SSE2_REG_MODE):
	Add V4QI and V2HI modes.
	(VALID_INT_MODE_P): Ditto.
	* config/i386/mmx.md (VI_32): New mode iterator.
	(mmxvecsize): Handle V4QI and V2HI.
	(Yv_Yw): Ditto.
	(mov<VI_32:mode>): New expander.
	(*mov<mode>_internal): New insn pattern.
	(movmisalign<VI_32:mode>): New expander.
	(neg<VI_32:mode>): New expander.
	(<plusminus:insn><VI_32:mode>3): New expander.
	(*<plusminus:insn><VI_32:mode>3): New insn pattern.
	(mulv2hi3): New expander.
	(*mulv2hi3): New insn pattern.
	(one_cmpl<VI_32:mode>2): New expander.
	(*andnot<VI_32:mode>3): New insn pattern.
	(<any_logic:code><VI_32:mode>3): New expander.
	(*<any_logic:code><VI_32:mode>3): New insn pattern.

2021-05-18  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/sse.md (<any_extend:insn>v4qiv4di2):
	Fix a mode mismatch with operand 1.

2021-05-18  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100626
	* config/i386/i386-expand.c (split_double_mode): Return
	temporary register when simplify_gen_subreg fails with
	the high half od the paradoxical subreg.

2021-05-18  Richard Biener  <rguenther@suse.de>

	* cfgexpand.c (expand_one_var): Pass in forced_stack_var
	and honor it when expanding.
	(expand_used_vars_for_block): Pass through forced_stack_var.
	(expand_used_vars): Likewise.
	(discover_nonconstant_array_refs_r): Set bits in
	forced_stack_vars instead of marking vars TREE_ADDRESSABLE.
	(avoid_type_punning_on_regs): Likewise.
	(discover_nonconstant_array_refs): Likewise.
	(pass_expand::execute): Create and pass down forced_stack_var
	bitmap.  For parameters and returns temporarily set
	TREE_ADDRESSABLE when expand_function_start.

2021-05-18  Thomas Schwinge  <thomas@codesourcery.com>

	* doc/sourcebuild.texi: Document 'dg-note'.

2021-05-18  Tobias Burnus  <tobias@codesourcery.com>

	PR other/100598
	* configure: Regenerate.
	* configure.ac (BUILD_CFLAG, BUILD_CXXFLAGS): Add $(CFLAGS-$@).

2021-05-18  Thomas Schwinge  <thomas@codesourcery.com>

	* gimple.h (is_gimple_omp_oacc): Tighten.
	* omp-low.c (check_omp_nesting_restrictions): Adjust.

2021-05-18  Richard Biener  <rguenther@suse.de>

	* tree-ssa-operands.c (mark_address_taken): Simplify.

2021-05-18  Martin Liska  <mliska@suse.cz>

	* config/gcn/mkoffload.c (STR): Redefine.
	* config/i386/intelmic-mkoffload.c (STR): Likewise.
	* config/nvptx/mkoffload.c (STR): Likewise.

2021-05-18  Martin Liska  <mliska@suse.cz>

	* common/config/aarch64/aarch64-common.c (aarch64_parse_extension):
	Use startswith function instead of strncmp.
	* common/config/bfin/bfin-common.c (bfin_handle_option): Likewise.
	* common/config/riscv/riscv-common.c (riscv_subset_list::parse): Likewise.
	* config/aarch64/aarch64-sve-builtins-shapes.cc (parse_type): Likewise.
	* config/aarch64/aarch64.c (aarch64_process_one_target_attr): Likewise.
	* config/alpha/alpha.c (alpha_elf_section_type_flags): Likewise.
	* config/arm/aarch-common.c (arm_md_asm_adjust): Likewise.
	* config/arm/arm.c (arm_file_start): Likewise.
	(arm_valid_target_attribute_rec): Likewise.
	(thumb1_md_asm_adjust): Likewise.
	* config/arm/driver-arm.c (host_detect_local_cpu): Likewise.
	* config/avr/avr.c (STR_PREFIX_P): Likewise.
	(avr_set_current_function): Likewise.
	(avr_handle_addr_attribute): Likewise.
	(avr_asm_output_aligned_decl_common): Likewise.
	(avr_asm_named_section): Likewise.
	(avr_section_type_flags): Likewise.
	(avr_asm_select_section): Likewise.
	* config/c6x/c6x.c (c6x_in_small_data_p): Likewise.
	(c6x_section_type_flags): Likewise.
	* config/darwin-c.c (darwin_cfstring_ref_p): Likewise.
	(darwin_objc_declare_unresolved_class_reference): Likewise.
	(darwin_objc_declare_class_definition): Likewise.
	* config/darwin.c (indirect_data): Likewise.
	(darwin_encode_section_info): Likewise.
	(darwin_objc2_section): Likewise.
	(darwin_objc1_section): Likewise.
	(machopic_select_section): Likewise.
	(darwin_globalize_label): Likewise.
	(darwin_label_is_anonymous_local_objc_name): Likewise.
	(darwin_asm_named_section): Likewise.
	(darwin_asm_output_dwarf_offset): Likewise.
	* config/frv/frv.c (frv_string_begins_with): Likewise.
	(frv_in_small_data_p): Likewise.
	* config/gcn/mkoffload.c (STR): Likewise.
	(main): Likewise.
	* config/i386/i386-builtins.c (get_builtin_code_for_version): Likewise.
	* config/i386/i386-options.c (ix86_option_override_internal): Likewise.
	* config/i386/i386.c (x86_64_elf_section_type_flags): Likewise.
	(ix86_md_asm_adjust): Likewise.
	* config/i386/intelmic-mkoffload.c (STR): Likewise.
	* config/i386/winnt.c (i386_pe_asm_named_section): Likewise.
	(i386_pe_file_end): Likewise.
	* config/ia64/ia64.c (ia64_in_small_data_p): Likewise.
	(ia64_section_type_flags): Likewise.
	* config/mips/driver-native.c (host_detect_local_cpu): Likewise.
	* config/mips/mips.c (mips_handle_interrupt_attr): Likewise.
	(mips16_stub_function_p): Likewise.
	(mips_function_rodata_section): Likewise.
	* config/msp430/msp430.c (msp430_mcu_name): Likewise.
	(msp430_function_section): Likewise.
	(msp430_section_type_flags): Likewise.
	(msp430_expand_helper): Likewise.
	* config/nios2/nios2.c (nios2_small_section_name_p): Likewise.
	(nios2_valid_target_attribute_rec): Likewise.
	* config/nvptx/mkoffload.c (process): Likewise.
	(STR): Likewise.
	* config/pa/som.h: Likewise.
	* config/pdp11/pdp11.c (pdp11_output_ident): Likewise.
	* config/riscv/riscv.c (riscv_elf_select_rtx_section): Likewise.
	* config/rs6000/rs6000.c (VTABLE_NAME_P): Likewise.
	(rs6000_inner_target_options): Likewise.
	* config/s390/driver-native.c (s390_host_detect_local_cpu): Likewise.
	* config/sparc/driver-sparc.c (host_detect_local_cpu): Likewise.
	* config/vax/vax.c (vax_output_int_move): Likewise.
	* config/vms/vms-ld.c (startswith): Likewise.
	(process_args): Likewise.
	(main): Likewise.
	* config/vms/vms.c: Likewise.

2021-05-18  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/100590
	* regcprop.c (copyprop_hardreg_forward_1): Only DCE dead sets if
	they are NONJUMP_INSN_P.

2021-05-18  Jakub Jelinek  <jakub@redhat.com>

	PR c++/100580
	* function.c (push_dummy_function): Set DECL_ARTIFICIAL and
	DECL_ASSEMBLER_NAME on the fn_decl.

2021-05-18  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/94589
	* tree-ssa-phiopt.c (spaceship_replacement): Pattern match
	phi result used in (res & ~1) == 0 comparison as res >= 0 as
	res == 2 would be UB with -ffinite-math-only.

2021-05-18  Martin Liska  <mliska@suse.cz>

	* Makefile.in: genversion.o should depend on DATESTAMP.

2021-05-18  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/simdext.md (negv2si2): Remove round bracket.

2021-05-18  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/s390-c.c (s390_cpu_cpp_builtins_internal): Define
	_Bool as macro expanding to _Bool.

2021-05-18  Andreas Krebbel  <krebbel@linux.ibm.com>

	PR c++/100281
	* tree.c (build_reference_type_for_mode)
	(build_pointer_type_for_mode): Pick pointer mode if MODE argument
	is VOIDmode.
	(build_reference_type, build_pointer_type): Invoke
	build_*_type_for_mode with VOIDmode.

2021-05-17  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/100512
	* gimple-range-cache.cc (ranger_cache::set_global_range): Mark const
	and non-zero pointer ranges as invariant.
	* gimple-range.cc (gimple_ranger::range_of_stmt): Remove pointer
	processing from here.

2021-05-17  Tom de Vries  <tdevries@suse.de>

	PR target/100497
	* config/nvptx/nvptx-protos.h (nvptx_output_atomic_insn): Declare
	* config/nvptx/nvptx.c (nvptx_output_barrier)
	(nvptx_output_atomic_insn): New function.
	(nvptx_print_operand): Add support for 'B'.
	* config/nvptx/nvptx.md: Use nvptx_output_atomic_insn for atomic
	insns.

2021-05-17  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/100349
	* vr-values.c (bounds_of_var_in_loop): Bail if scev returns
	  NULL.

2021-05-17  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/driver-aarch64.c (DEFAULT_ARCH): New.
	(host_detect_local_cpu): Use it.

2021-05-17  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Add 2 missing dots.

2021-05-17  Marius Hillenbrand  <mhillen@linux.ibm.com>

	PR bootstrap/100552
	* configure.ac: Replace pattern substitution with call to sed.
	* configure: Regenerate.

2021-05-17  Richard Biener  <rguenther@suse.de>

	PR middle-end/100582
	* tree.c (array_at_struct_end_p): Get to the base of the
	reference before looking for the underlying decl.

2021-05-17  Joern Rennecke  <joern.rennecke@embecosm.com>

	* genoutput.c (validate_insn_alternatives) Make "wrong number of
	alternatives" message more specific, and remove assumption on where
	the problem is.

2021-05-17  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/iterators.md (V16): New iterator.
	(VH_cvtto): New iterator.
	(v_cmp_result): Added V4HF and V8HF support.
	* config/arm/vec-common.md (vec_cmp<mode><v_cmp_result>): Use VDQWH.
	(vcond<mode><mode>): Likewise.
	(vcond_mask_<mode><v_cmp_result>): Likewise.
	(vcond<VH_cvtto><mode>): New expander.

2021-05-17  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/arm-protos.h (arm_expand_vector_compare): Update
	prototype.
	* config/arm/arm.c (arm_expand_vector_compare): Add support for
	MVE.
	(arm_expand_vcond): Likewise.
	* config/arm/iterators.md (supf): Remove VCMPNEQ_S, VCMPEQQ_S,
	VCMPEQQ_N_S, VCMPNEQ_N_S.
	(VCMPNEQ, VCMPEQQ, VCMPEQQ_N, VCMPNEQ_N): Remove.
	* config/arm/mve.md (@mve_vcmp<mve_cmp_op>q_<mode>): Add '@' prefix.
	(@mve_vcmp<mve_cmp_op>q_f<mode>): Likewise.
	(@mve_vcmp<mve_cmp_op>q_n_f<mode>): Likewise.
	(@mve_vpselq_<supf><mode>): Likewise.
	(@mve_vpselq_f<mode>"): Likewise.
	* config/arm/neon.md (vec_cmp<mode><v_cmp_result): Enable for MVE
	and move to vec-common.md.
	(vec_cmpu<mode><mode>): Likewise.
	(vcond<mode><mode>): Likewise.
	(vcond<V_cvtto><mode>): Likewise.
	(vcondu<mode><v_cmp_result>): Likewise.
	(vcond_mask_<mode><v_cmp_result>): Likewise.
	* config/arm/unspecs.md (VCMPNEQ_U, VCMPNEQ_S, VCMPEQQ_S)
	(VCMPEQQ_N_S, VCMPNEQ_N_S, VCMPEQQ_U, CMPEQQ_N_U, VCMPNEQ_N_U)
	(VCMPGEQ_N_S, VCMPGEQ_S, VCMPGTQ_N_S, VCMPGTQ_S, VCMPLEQ_N_S)
	(VCMPLEQ_S, VCMPLTQ_N_S, VCMPLTQ_S, VCMPCSQ_N_U, VCMPCSQ_U)
	(VCMPHIQ_N_U, VCMPHIQ_U): Remove.
	* config/arm/vec-common.md (vec_cmp<mode><v_cmp_result): Moved
	from neon.md.
	(vec_cmpu<mode><mode>): Likewise.
	(vcond<mode><mode>): Likewise.
	(vcond<V_cvtto><mode>): Likewise.
	(vcondu<mode><v_cmp_result>): Likewise.
	(vcond_mask_<mode><v_cmp_result>): Likewise. Added unsafe math
	condition.

2021-05-17  liuhongt  <hongtao.liu@intel.com>

	PR target/100549
	* config/i386/i386.c (ix86_gimple_fold_builtin): Use
	gsi_insert_seq_before instead.

2021-05-17  Christophe Lyon  <christophe.lyon@linaro.org>

	* doc/sourcebuild.texi (arm_qbit_ok): Rename into...
	(arm_sat_ok): ...this.

2021-05-17  Martin Liska  <mliska@suse.cz>

	* lto-wrapper.c (merge_flto_options): Factor out a new function.
	(merge_and_complain): Use it.
	(run_gcc): Merge also linker command line -flto=foo argument
	with IL files.

2021-05-16  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/arm.h (CPP_SPEC): Remove error message about
	-mlittle-endian/-mbig-endian conflict.

2021-05-15  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Define
	__ROP_PROTECT__ if -mrop-protect is selected.

2021-05-15  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-internal.h (rs6000_stack): Add
	rop_hash_save_offset and rop_hash_size.
	* config/rs6000/rs6000-logue.c (rs6000_stack_info): Compute
	rop_hash_size and rop_hash_save_offset.
	(debug_stack_info): Dump rop_hash_save_offset and rop_hash_size.
	(rs6000_emit_prologue): Emit hashst[p] in prologue.
	(rs6000_emit_epilogue): Emit hashchk[p] in epilogue.
	* config/rs6000/rs6000.md (unspec): Add UNSPEC_HASHST and
	UNSPEC_HASHCHK.
	(hashst): New define_insn.
	(hashchk): Likewise.

2021-05-15  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000.c (rs6000_option_override_internal):
	Disable shrink wrap when inserting ROP-protect instructions.
	* config/rs6000/rs6000.opt (mrop-protect): New option.
	(mprivileged): Likewise.
	* doc/invoke.texi: Document mrop-protect and mprivileged.

2021-05-15  Hans-Peter Nilsson  <hp@axis.com>

	* reorg.c (fill_slots_from_thread): Reinstate code typoed out in
	"Remove CC0".

2021-05-15  Martin Jambor  <mjambor@suse.cz>

	Revert:
	2021-05-13  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/100453
	* tree-sra.c (sra_modify_assign): All const base accesses do not
	need refreshing, not just those from decl_pool.
	(sra_modify_assign): Do not refresh into a const base decl.

2021-05-15  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/100342
	* regcprop.c (copy_value): When copying a source reg in a wider
	mode than it has recorded for the value, adjust recorded destination
	mode too or punt if !REG_CAN_CHANGE_MODE_P.

2021-05-14  Jason Merrill  <jason@redhat.com>

	* intl.h: Add comments.

2021-05-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md
	(aarch64_sqdml<SBINQOPS:as>l2_lane<mode>_internal): Split into...
	(aarch64_sqdmlsl2_lane<mode>_internal): ... This...
	(aarch64_sqdmlal2_lane<mode>_internal): ... And this.
	(aarch64_sqdml<SBINQOPS:as>l2_laneq<mode>_internal): Split into ...
	(aarch64_sqdmlsl2_laneq<mode>_internal): ... This...
	(aarch64_sqdmlal2_laneq<mode>_internal): ... And this.
	(aarch64_sqdml<SBINQOPS:as>l2_n<mode>_internal): Split into...
	(aarch64_sqdmlsl2_n<mode>_internal): ... This...
	(aarch64_sqdmlal2_n<mode>_internal): ... And this.

2021-05-14  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	PR target/66791
	* config/arm/arm_neon.h (vtst_s8): Replace call to vtst builtin with it's
	boolean logic equivalent.
	(vtst_s16): Likewise.
	(vtst_s32): Likewise.
	(vtst_u8): Likewise.
	(vtst_u16): Likewise.
	(vtst_u32): Likewise.
	(vtst_p8): Likewise.
	(vtst_p16): Likewise.
	(vtstq_s8): Likewise.
	(vtstq_s16): Likewise.
	(vtstq_s32): Likewise.
	(vtstq_u8): Likewise.
	(vtstq_u16): Likewise.
	(vtstq_u32): Likewise.
	(vtstq_p8): Likewise.
	(vtstq_p16): Likewise.
	* config/arm/arm_neon_builtins.def: Remove entry for vtst.
	* config/arm/neon.md (neon_vtst<mode>): Remove pattern.

2021-05-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_sqdmlal2<mode>): Merge into...
	(aarch64_sqdml<SBINQOPS:as>l2<mode>): ... This.
	(aarch64_sqdmlsl2<mode>): Delete.
	(aarch64_sqdmlal2_lane<mode>): Merge this...
	(aarch64_sqdmlsl2_lane<mode>): ... And this...
	(aarch64_sqdml<SBINQOPS:as>l2_lane<mode>): ... Into this.
	(aarch64_sqdmlal2_laneq<mode>): Merge this...
	(aarch64_sqdmlsl2_laneq<mode>): ... And this...
	(aarch64_sqdml<SBINQOPS:as>l2_laneq<mode>): ... Into this.
	(aarch64_sqdmlal2_n<mode>): Merge this...
	(aarch64_sqdmlsl2_n<mode>): ... And this...
	(aarch64_sqdml<SBINQOPS:as>l2_n<mode>): ... Into this.

2021-05-13  Martin Sebor  <msebor@redhat.com>

	PR middle-end/100574
	* builtins.c (access_ref::get_ref): Improve detection of PHIs with
	all null arguments.

2021-05-13  Martin Sebor  <msebor@redhat.com>

	PR tree-optimization/93100
	PR middle-end/98583
	* tree-ssa-uninit.c (check_defs): Exclude intrinsic functions that
	don't modify referenced objects.

2021-05-13  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/100453
	* tree-sra.c (sra_modify_assign): All const base accesses do not
	need refreshing, not just those from decl_pool.
	(sra_modify_assign): Do not refresh into a const base decl.

2021-05-13  Martin Liska  <mliska@suse.cz>

	* tree-ssa-dom.c: Remove m_simplifier.

2021-05-13  Richard Earnshaw  <rearnsha@arm.com>

	PR target/100563
	* config/arm/arm.c (arm_canonicalize_comparison): Correctly
	canonicalize DImode inequality comparisons against the
	maximum integral value.

2021-05-13  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/98856
	* config/i386/i386.c (ix86_shift_rotate_cost): Add CODE argument.
	Expect V2DI and V4DI arithmetic right shifts to be emulated.
	(ix86_rtx_costs, ix86_add_stmt_cost): Adjust ix86_shift_rotate_cost
	caller.
	* config/i386/i386-expand.c (expand_vec_perm_2perm_interleave,
	expand_vec_perm_2perm_pblendv): New functions.
	(ix86_expand_vec_perm_const_1): Use them.
	* config/i386/sse.md (ashr<mode>3<mask_name>): Rename to ...
	(<mask_codefor>ashr<mode>3<mask_name>): ... this.
	(ashr<mode>3): New define_expand with VI248_AVX512BW iterator.
	(ashrv4di3): New define_expand.
	(ashrv2di3): Change condition to TARGET_SSE2, handle !TARGET_XOP
	and !TARGET_AVX512VL expansion.

2021-05-13  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100581
	* config/i386/i386-expand.c (ix86_expand_sse_movcc): Force mode
	sizes < 16 to a register when constructing vpcmov pattern.
	* config/i386/mmx.md (*xop_pcmov_<mode>): Use MMXMODE124 mode.

2021-05-13  Martin Liska  <mliska@suse.cz>

	* gcov-io.c (gcov_write_block): Remove.
	(gcov_write_words): Likewise.
	(gcov_read_words): Re-implement using gcov_read_bytes.
	(gcov_allocate): Remove.
	(GCOV_BLOCK_SIZE): Likewise.
	(struct gcov_var): Remove most of the fields.
	(gcov_position): Implement with ftell.
	(gcov_rewrite): Remove setting of start and offset fields.
	(from_file): Re-format.
	(gcov_open): Remove setbuf call. It should not be needed.
	(gcov_close): Remove internal buffer handling.
	(gcov_magic): Use __builtin_bswap32.
	(gcov_write_counter): Use directly gcov_write_unsigned.
	(gcov_write_string): Use direct fwrite and do not round
	to 4 bytes.
	(gcov_seek): Use directly fseek.
	(gcov_write_tag): Use gcov_write_unsigned directly.
	(gcov_write_length): Likewise.
	(gcov_write_tag_length): Likewise.
	(gcov_read_bytes): Use directly fread.
	(gcov_read_unsigned): Use gcov_read_words.
	(gcov_read_counter): Likewise.
	(gcov_read_string): Use gcov_read_bytes.
	* gcov-io.h (GCOV_WORD_SIZE): Adjust to reflect
	that size is not in bytes, but words (4B).
	(GCOV_TAG_FUNCTION_LENGTH): Likewise.
	(GCOV_TAG_ARCS_LENGTH): Likewise.
	(GCOV_TAG_ARCS_NUM): Likewise.
	(GCOV_TAG_COUNTER_LENGTH): Likewise.
	(GCOV_TAG_COUNTER_NUM): Likewise.
	(GCOV_TAG_SUMMARY_LENGTH): Likewise.

2021-05-13  liuhongt  <hongtao.liu@intel.com>

	PR target/94680
	* config/i386/sse.md (ssedoublevecmode): Add attribute for
	V64QI/V32HI/V16SI/V4DI.
	(ssehalfvecmode): Add attribute for V2DI/V2DF.
	(*vec_concatv4si_0): Extend to VI124_128.
	(*vec_concat<mode>_0): New pre-reload splitter.
	* config/i386/predicates.md (movq_parallel): New predicate.

2021-05-13  Alexandre Oliva  <oliva@adacore.com>

	* targhooks.c (default_zero_call_used_regs): Retry using
	successfully-zeroed registers as sources.

2021-05-12  Tobias Burnus  <tobias@codesourcery.com>

	* omp-low.c (finish_taskreg_scan): Use the proper detach decl.

2021-05-12  Aldy Hernandez  <aldyh@redhat.com>

	PR c/100521
	* gimple-range.cc (range_of_builtin_call): Skip out on
	  processing __builtin_clz when varying.

2021-05-12  Tom de Vries  <tdevries@suse.de>

	PR target/96005
	* config/nvptx/nvptx-opts.h (enum ptx_version): New enum.
	* config/nvptx/nvptx.c (nvptx_file_start): Print .version according
	to ptx_version_option.
	* config/nvptx/nvptx.h (TARGET_PTX_6_3): Define.
	* config/nvptx/nvptx.md (define_insn "nvptx_shuffle<mode>")
	(define_insn "nvptx_vote_ballot"): Use sync variant for
	TARGET_PTX_6_3.
	* config/nvptx/nvptx.opt (ptx_version): Add enum.
	(mptx): Add option.
	* doc/invoke.texi (Nvidia PTX Options): Add mptx item.

2021-05-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100566
	* tree-ssa-sccvn.c (dominated_by_p_w_unex): Properly handle
	allow_back for all edge queries.

2021-05-12  liuhongt  <hongtao.liu@intel.com>

	PR target/99908
	* config/i386/sse.md (<sse4_1_avx2>_pblendvb): Add
	splitters for pblendvb of NOT mask register.

2021-05-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100519
	* tree-ssa-reassoc.c (can_associate_p): Split into...
	(can_associate_op_p): ... this
	(can_associate_type_p): ... and this.
	(is_reassociable_op): Call can_associate_op_p.
	(break_up_subtract_bb): Call the appropriate predicates.
	(reassociate_bb): Likewise.

2021-05-12  Martin Liska  <mliska@suse.cz>

	* lto-wrapper.c (merge_and_complain): Merge -flto=arg options.
	(run_gcc): Use -flto argument detection for merged
	fdecoded_options.

2021-05-12  Martin Liska  <mliska@suse.cz>

	* lto-wrapper.c (print_lto_docs_link): New function.
	(run_gcc): Print warning about missing job server detection
	after we know NR of partitions. Do the same for -flto{,=1}.
	* opts.c (get_option_html_page): Support -flto option.

2021-05-12  Martin Liska  <mliska@suse.cz>

	* lto-wrapper.c (get_options_from_collect_gcc_options): Change
	return type.
	(append_option): Remove.
	(find_option): Rework to use the vector type.
	(remove_option): Remove.
	(merge_and_complain): Use vectors for cl_decoded_option data
	type arguments.
	(append_compiler_options): Likewise.
	(append_diag_options): Likewise.
	(append_linker_options): Likewise.
	(append_offload_options): Likewise.
	(compile_offload_image): Likewise.
	(compile_images_for_offload_targets): Likewise.
	(find_and_merge_options): Likewise.
	(run_gcc): Likewise.

2021-05-12  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR debug/100515
	* dwarf2out.c (dwarf2out_finish): Set
	have_multiple_function_sections with multi-range text_section.

2021-05-12  Martin Liska  <mliska@suse.cz>

	PR bootstrap/100560
	* Makefile.in: Remove version.h from linker command line.

2021-05-12  Richard Biener  <rguenther@suse.de>

	PR middle-end/100547
	* rtl.h (rtvec_alloc): Make argument size_t.
	* rtl.c (rtvec_alloc): Verify the count is less than INT_MAX.

2021-05-12  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/100508
	* cfgexpand.c (expand_debug_expr): For DEBUG_EXPR_DECL with vector
	type, don't reuse DECL_RTL if it has different mode, instead force
	creation of a new DEBUG_EXPR.

2021-05-12  Jakub Jelinek  <jakub@redhat.com>
	    Marc Glisse  <marc.glisse@inria.fr>

	PR tree-optimization/94589
	* match.pd ((X & Y) == X -> (X & ~Y) == 0,
	(X | Y) == Y -> (X & ~Y) == 0): New GIMPLE simplifications.

2021-05-12  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/98218
	* config/i386/i386-expand.c (ix86_expand_sse_movcc): Handle V2SF mode.
	* config/i386/mmx.md (MMXMODE124): New mode iterator.
	(V2FI): Ditto.
	(mmxintvecmode): New mode attribute.
	(mmxintvecmodelower): Ditto.
	(*mmx_maskcmpv2sf3_comm): New insn pattern.
	(*mmx_maskcmpv2sf3): Ditto.
	(vec_cmpv2sfv2si): New expander.
	(vcond<V2FI:mode>v2si): Ditto.
	(mmx_vlendvps): New insn pattern.
	(vcond<MMXMODE124:mode><MMXMODEI:mode>): Also handle V2SFmode.
	(vcondu<MMXMODE124:mode><MMXMODEI:mode>): Ditto.
	(vcond_mask_<mode><mmxintvecmodelower>): Ditto.

2021-05-11  Martin Sebor  <msebor@redhat.com>

	PR middle-end/21433
	* expr.c (expand_expr_real_1): Replace unreachable code with an assert.

2021-05-11  Richard Biener  <rguenther@suse.de>

	* gimple-fold.c (gimple_fold_call): Do not call
	maybe_fold_reference on call arguments or the static chain.
	(fold_stmt_1): Do not call maybe_fold_reference on GIMPLE_ASM
	inputs.

2021-05-11  Martin Liska  <mliska@suse.cz>

	* builtins.def (DEF_HSAIL_BUILTIN): Remove.
	(DEF_HSAIL_ATOMIC_BUILTIN): Likewise.
	(DEF_HSAIL_SAT_BUILTIN): Likewise.
	(DEF_HSAIL_INTR_BUILTIN): Likewise.
	(DEF_HSAIL_CVT_ZEROI_SAT_BUILTIN): Likewise.
	* doc/frontends.texi: Remove BRIG.
	* doc/install.texi: Likewise.
	* doc/invoke.texi: Likewise.
	* doc/standards.texi: Likewise.
	* brig-builtins.def: Removed.
	* brig/ChangeLog: Removed.
	* brig/Make-lang.in: Removed.
	* brig/brig-builtins.h: Removed.
	* brig/brig-c.h: Removed.
	* brig/brig-lang.c: Removed.
	* brig/brigfrontend/brig-arg-block-handler.cc: Removed.
	* brig/brigfrontend/brig-atomic-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-basic-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-branch-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-cmp-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-code-entry-handler.cc: Removed.
	* brig/brigfrontend/brig-code-entry-handler.h: Removed.
	* brig/brigfrontend/brig-comment-handler.cc: Removed.
	* brig/brigfrontend/brig-control-handler.cc: Removed.
	* brig/brigfrontend/brig-copy-move-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-cvt-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-fbarrier-handler.cc: Removed.
	* brig/brigfrontend/brig-function-handler.cc: Removed.
	* brig/brigfrontend/brig-function.cc: Removed.
	* brig/brigfrontend/brig-function.h: Removed.
	* brig/brigfrontend/brig-inst-mod-handler.cc: Removed.
	* brig/brigfrontend/brig-label-handler.cc: Removed.
	* brig/brigfrontend/brig-lane-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-machine.c: Removed.
	* brig/brigfrontend/brig-machine.h: Removed.
	* brig/brigfrontend/brig-mem-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-module-handler.cc: Removed.
	* brig/brigfrontend/brig-queue-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-seg-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-signal-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-to-generic.cc: Removed.
	* brig/brigfrontend/brig-to-generic.h: Removed.
	* brig/brigfrontend/brig-util.cc: Removed.
	* brig/brigfrontend/brig-util.h: Removed.
	* brig/brigfrontend/brig-variable-handler.cc: Removed.
	* brig/brigfrontend/hsa-brig-format.h: Removed.
	* brig/brigfrontend/phsa.h: Removed.
	* brig/brigspec.c: Removed.
	* brig/config-lang.in: Removed.
	* brig/gccbrig.texi: Removed.
	* brig/lang-specs.h: Removed.
	* brig/lang.opt: Removed.

2021-05-11  Richard Biener  <rguenther@suse.de>

	PR ipa/100513
	* ipa-param-manipulation.c
	(ipa_param_body_adjustments::modify_call_stmt): Avoid
	altering SSA_NAME_DEF_STMT by adjusting the calls LHS
	via gimple_call_lhs_ptr.

2021-05-11  Alex Coplan  <alex.coplan@arm.com>

	PR target/99725
	* config/arm/arm.c (cmse_nonsecure_call_inline_register_clear):
	Avoid emitting CFA adjusts on the sp if we have the fp.

2021-05-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/iterators.md (VMUL_CHANGE_NLANES): Delete.
	(VMULD): New iterator.
	(VCOND): Handle V4HF and V8HF.
	(VCONQ): Fix entry for V2SF.
	* config/aarch64/aarch64-simd.md (mul_lane<mode>3): Use VMULD
	instead of VMUL.  Use a 64-bit vector mode for the indexed operand.
	(*aarch64_mul3_elt_<vswap_width_name><mode>): Merge with...
	(mul_laneq<mode>3): ...this define_insn.  Use VMUL instead of VDQSF.
	Use a 128-bit vector mode for the indexed operand.  Use stype for
	the scheduling type.

2021-05-11  Richard Biener  <rguenther@suse.de>

	* gimple-fold.c (maybe_fold_reference): Only return
	is_gimple_min_invariant values.

2021-05-11  Richard Biener  <rguenther@suse.de>

	PR middle-end/100509
	* gimple-fold.c (fold_gimple_assign): Only call
	get_symbol_constant_value on register type symbols.

2021-05-11  Srinath Parvathaneni  <srinath.parvathaneni@arm.com>
	    Joe Ramsay   <joe.ramsay@arm.com>

	PR target/100419
	* config/arm/arm_mve.h (__arm_vstrwq_scatter_offset): Fix wrong arguments.
	(__arm_vcmpneq): Remove duplicate definition.
	(__arm_vstrwq_scatter_offset_p): Likewise.
	(__arm_vmaxq_x): Likewise.
	(__arm_vmlsdavaq): Likewise.
	(__arm_vmlsdavaxq): Likewise.
	(__arm_vmlsdavq_p): Likewise.
	(__arm_vmlsdavxq_p): Likewise.
	(__arm_vrmlaldavhaq): Likewise.
	(__arm_vstrbq_p): Likewise.
	(__arm_vstrbq_scatter_offset): Likewise.
	(__arm_vstrbq_scatter_offset_p): Likewise.
	(__arm_vstrdq_scatter_offset): Likewise.
	(__arm_vstrdq_scatter_offset_p): Likewise.
	(__arm_vstrdq_scatter_shifted_offset): Likewise.
	(__arm_vstrdq_scatter_shifted_offset_p): Likewise.

2021-05-11  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/100471
	* omp-low.c (lower_omp_task_reductions): For OMP_TASKLOOP, if data
	is 0, bypass the reduction loop including
	GOMP_taskgroup_reduction_unregister call.

2021-05-11  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/rs6000.c (struct rs6000_cost_data): New member
	costing_for_scalar.
	(rs6000_density_test): Early return if costing_for_scalar is true.
	(rs6000_init_cost): Init costing_for_scalar of rs6000_cost_data.

2021-05-11  Kewen Lin  <linkw@linux.ibm.com>

	* doc/tm.texi: Regenerated.
	* target.def (init_cost): Add new parameter costing_for_scalar.
	* targhooks.c (default_init_cost): Adjust for new parameter.
	* targhooks.h (default_init_cost): Likewise.
	* tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Likewise.
	(vect_compute_single_scalar_iteration_cost): Likewise.
	(vect_analyze_loop_2): Likewise.
	* tree-vect-slp.c (_bb_vec_info::_bb_vec_info): Likewise.
	(vect_bb_vectorization_profitable_p): Likewise.
	* tree-vectorizer.h (init_cost): Likewise.
	* config/aarch64/aarch64.c (aarch64_init_cost): Likewise.
	* config/i386/i386.c (ix86_init_cost): Likewise.
	* config/rs6000/rs6000.c (rs6000_init_cost): Likewise.

2021-05-11  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/rs6000.c (rs6000_vect_nonmem): Renamed to
	vect_nonmem and moved into...
	(struct rs6000_cost_data): ...here.
	(rs6000_init_cost): Use vect_nonmem of cost_data instead.
	(rs6000_add_stmt_cost): Likewise.
	(rs6000_finish_cost): Likewise.

2021-05-10  Eric Botcazou  <ebotcazou@adacore.com>

	* range-op.cc (get_bool_state): Adjust head comment.
	(operator_not_equal::op1_range): Fix comment.
	(operator_bitwise_xor::op1_range): Remove call to gcc_unreachable.

2021-05-10  Martin Sebor  <msebor@redhat.com>

	PR middle-end/100425
	PR middle-end/100510
	* gimple-ssa-warn-alloca.c (pass_walloca::firast_time_p): Rename...
	(pass_walloca::xlimit_certain_p): ...to this.
	(pass_walloca::gate): Execute for any kind of handled warning.
	(pass_walloca::execute): Avoid issuing "maybe" and "unbounded"
	warnings when xlimit_certain_p is set.

2021-05-10  Pat Haugen  <pthaugen@linux.ibm.com>

	* config/rs6000/rs6000.c (rs6000_ira_change_pseudo_allocno_class):
	Return ALTIVEC_REGS if that is best_class.
	(rs6000_compute_pressure_classes): Add ALTIVEC_REGS.

2021-05-10  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/arm.h (CPP_SPEC): Remove error message about
	-mfloat-abi.

2021-05-10  Martin Jambor  <mjambor@suse.cz>

	* ipa-prop.h (IPA_NODE_REF): Removed.
	(IPA_NODE_REF_GET_CREATE): Likewise.
	(IPA_EDGE_REF): Likewise.
	(IPA_EDGE_REF_GET_CREATE): Likewise.
	(IS_VALID_JUMP_FUNC_INDEX): Likewise.
	* ipa-cp.c (print_all_lattices): Replaced IPA_NODE_REF with a direct
	use of ipa_node_params_sum.
	(ipcp_versionable_function_p): Likewise.
	(push_node_to_stack): Likewise.
	(pop_node_from_stack): Likewise.
	(set_single_call_flag): Replaced two IPA_NODE_REF with one single
	direct use of ipa_node_params_sum.
	(initialize_node_lattices): Replaced IPA_NODE_REF with a direct use of
	ipa_node_params_sum.
	(ipa_context_from_jfunc): Replaced IPA_EDGE_REF with a direct use of
	ipa_edge_args_sum.
	(ipcp_verify_propagated_values): Replaced IPA_NODE_REF with a direct
	use of ipa_node_params_sum.
	(self_recursively_generated_p): Likewise.
	(propagate_scalar_across_jump_function): Likewise.
	(propagate_context_across_jump_function): Replaced IPA_EDGE_REF with a
	direct use of ipa_edge_args_sum, moved the lookup after the early
	exit.  Replaced IPA_NODE_REF with a direct use of ipa_node_params_sum.
	(propagate_bits_across_jump_function): Replaced IPA_NODE_REF with
	direct uses of ipa_node_params_sum.
	(propagate_vr_across_jump_function): Likewise.
	(propagate_aggregate_lattice): Likewise.
	(propagate_aggs_across_jump_function): Likewise.
	(propagate_constants_across_call): Likewise, also replaced
	IPA_EDGE_REF with a direct use of ipa_edge_args_sum.
	(good_cloning_opportunity_p): Replaced IPA_NODE_REF with a direct use
	of ipa_node_params_sum.
	(estimate_local_effects): Likewise.
	(add_all_node_vals_to_toposort): Likewise.
	(propagate_constants_topo): Likewise.
	(ipcp_propagate_stage): Likewise.
	(ipcp_discover_new_direct_edges): Likewise.
	(calls_same_node_or_its_all_contexts_clone_p): Likewise.
	(cgraph_edge_brings_value_p): Likewise (in both overloaded functions).
	(get_info_about_necessary_edges): Likewise.
	(want_remove_some_param_p): Likewise.
	(create_specialized_node): Likewise.
	(self_recursive_pass_through_p): Likewise.
	(self_recursive_agg_pass_through_p): Likewise.
	(find_more_scalar_values_for_callers_subset): Likewise and also
	replaced IPA_EDGE_REF with direct uses of ipa_edge_args_sum, in one
	case replacing two of those with a single query.
	(find_more_contexts_for_caller_subset): Likewise for the
	ipa_polymorphic_call_context overload.
	(intersect_aggregates_with_edge): Replaced IPA_EDGE_REF with a direct
	use of ipa_edge_args_sum.  Replaced IPA_NODE_REF with direct uses of
	ipa_node_params_sum.
	(find_aggregate_values_for_callers_subset): Likewise, also reusing
	results of ipa_edge_args_sum->get.
	(cgraph_edge_brings_all_scalars_for_node): Replaced IPA_NODE_REF with
	direct uses of ipa_node_params_sum, replaced IPA_EDGE_REF with a
	direct use of ipa_edge_args_sum.
	(cgraph_edge_brings_all_agg_vals_for_node): Likewise, moved node
	summary query after the early exit and reused the result later.
	(decide_about_value): Replaced IPA_NODE_REF with a direct use of
	ipa_node_params_sum.
	(decide_whether_version_node): Likewise.  Removed re-querying for
	summaries after cloning.
	(spread_undeadness): Replaced IPA_NODE_REF with a direct use of
	ipa_node_params_sum.
	(has_undead_caller_from_outside_scc_p): Likewise, reusing results of
	some queries.
	(identify_dead_nodes): Likewise.
	(ipcp_store_bits_results): Replaced IPA_NODE_REF with direct uses of
	ipa_node_params_sum.
	(ipcp_store_vr_results): Likewise.
	* ipa-fnsummary.c (evaluate_properties_for_edge): Likewise.
	(ipa_fn_summary_t::duplicate): Likewise.
	(analyze_function_body): Likewise.
	(estimate_calls_size_and_time): Likewise.
	(ipa_cached_call_context::duplicate_from): Likewise.
	(ipa_call_context::equal_to): Likewise.
	(remap_edge_params): Likewise.
	(ipa_merge_fn_summary_after_inlining): Likewise.
	(inline_read_section): Likewise.
	* ipa-icf.c (sem_function::param_used_p): Likewise.
	* ipa-modref.c (compute_parm_map): Likewise.
	(compute_parm_map): Replaced IPA_EDGE_REF with a direct use of
	ipa_edge_args_sum.
	(get_access_for_fnspec): Replaced IPA_NODE_REF with a direct use of
	ipa_node_params_sum and replaced IPA_EDGE_REF with a direct use of
	ipa_edge_args_sum.
	* ipa-profile.c (check_argument_count): Likewise.
	* ipa-prop.c (ipa_alloc_node_params): Replaced IPA_NODE_REF_GET_CREATE
	with a direct use of ipa_node_params_sum.
	(ipa_initialize_node_params): Likewise.
	(ipa_print_node_jump_functions_for_edge): Replaced IPA_EDGE_REF with a
	direct use of ipa_edge_args_sum and reused the query result.
	(ipa_compute_jump_functions_for_edge): Replaced IPA_NODE_REF with a
	direct use of ipa_node_params_sum and replaced IPA_EDGE_REF with a
	direct use of ipa_edge_args_sum.
	(ipa_note_param_call): Replaced IPA_NODE_REF with a direct use of
	ipa_node_params_sum and reused the result of the query.
	(ipa_analyze_node): Likewise.
	(ipa_analyze_controlled_uses): Replaced IPA_NODE_REF with a direct use
	of ipa_node_params_sum.
	(update_jump_functions_after_inlining): Replaced IPA_EDGE_REF with
	direct uses of ipa_edge_args_sum.
	(update_indirect_edges_after_inlining): Replaced IPA_NODE_REF with
	direct uses of ipa_node_params_sum and replaced IPA_EDGE_REF with a
	direct use of ipa_edge_args_sum.  Removed superficial re-querying the
	top edge summary.
	(propagate_controlled_uses): Replaced IPA_NODE_REF with direct uses of
	ipa_node_params_sum and replaced IPA_EDGE_REF with a direct use of
	ipa_edge_args_sum.
	(ipa_propagate_indirect_call_infos): Replaced IPA_EDGE_REF with a
	direct use of ipa_edge_args_sum.
	(ipa_edge_args_sum_t::duplicate): Replaced IPA_NODE_REF with a direct
	use of ipa_node_params_sum.
	(ipa_print_node_params): Likewise.
	(ipa_write_node_info): Likewise and also replaced IPA_EDGE_REF with
	direct uses of ipa_edge_args_sum.
	(ipa_read_edge_info): Replaced IPA_EDGE_REF with a direct use of
	ipa_edge_args_sum.
	(ipa_read_node_info): Replaced IPA_NODE_REF with a direct use of
	ipa_node_params_sum.
	(ipa_prop_write_jump_functions): Likewise.  Move variable node to the
	scopes where it is used.

2021-05-10  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386-expand.c (ix86_expand_sse_movcc)
	<case E_V2SImode>: Force op_true to register.

2021-05-10  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/iterators.md (MVE_FP_COMPARISONS): New.
	* config/arm/mve.md (mve_vcmp<mve_cmp_op>q_f<mode>)
	(mve_vcmp<mve_cmp_op>q_n_f<mode>): New, merge all vcmp_*f*
	patterns.
	(mve_vcmpeqq_f<mode>, mve_vcmpeqq_n_f<mode>, mve_vcmpgeq_f<mode>)
	(mve_vcmpgeq_n_f<mode>, mve_vcmpgtq_f<mode>)
	(mve_vcmpgtq_n_f<mode>, mve_vcmpleq_f<mode>)
	(mve_vcmpleq_n_f<mode>, mve_vcmpltq_f<mode>)
	(mve_vcmpltq_n_f<mode>, mve_vcmpneq_f<mode>)
	(mve_vcmpneq_n_f<mode>): Remove.
	* config/arm/unspecs.md (VCMPEQQ_F, VCMPEQQ_N_F, VCMPGEQ_F)
	(VCMPGEQ_N_F, VCMPGTQ_F, VCMPGTQ_N_F, VCMPLEQ_F, VCMPLEQ_N_F)
	(VCMPLTQ_F, VCMPLTQ_N_F, VCMPNEQ_F, VCMPNEQ_N_F): Remove.

2021-05-10  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/iterators.md (MVE_COMPARISONS): New.
	(mve_cmp_op): New.
	(mve_cmp_type): New.
	* config/arm/mve.md (mve_vcmp<mve_cmp_op>q_<mode>): New, merge all
	mve_vcmp patterns.
	(mve_vcmpneq_<mode>, mve_vcmpcsq_n_<mode>, mve_vcmpcsq_<mode>)
	(mve_vcmpeqq_n_<mode>, mve_vcmpeqq_<mode>, mve_vcmpgeq_n_<mode>)
	(mve_vcmpgeq_<mode>, mve_vcmpgtq_n_<mode>, mve_vcmpgtq_<mode>)
	(mve_vcmphiq_n_<mode>, mve_vcmphiq_<mode>, mve_vcmpleq_n_<mode>)
	(mve_vcmpleq_<mode>, mve_vcmpltq_n_<mode>, mve_vcmpltq_<mode>)
	(mve_vcmpneq_n_<mode>, mve_vcmpltq_n_<mode>, mve_vcmpltq_<mode>)
	(mve_vcmpneq_n_<mode>): Remove.

2021-05-10  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/arm_mve.h (__arm_vcmp*): Remove 's' suffix.
	* config/arm/arm_mve_builtins.def (vcmp*): Remove 's' suffix.
	* config/arm/mve.md (mve_vcmp*): Remove 's' suffix in pattern
	names.

2021-05-10  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/arm_mve_builtins.def (vcmpneq_u): Remove.
	(vcmpneq_n_u): Likewise.
	(vcmpeqq_u,): Likewise.
	(vcmpeqq_n_u): Likewise.
	* config/arm/iterators.md (supf): Remove VCMPNEQ_U, VCMPEQQ_U,
	VCMPEQQ_N_U and VCMPNEQ_N_U.
	* config/arm/mve.md (mve_vcmpneq): Remove <supf> iteration.
	(mve_vcmpeqq_n): Likewise.
	(mve_vcmpeqq): Likewise.
	(mve_vcmpneq_n): Likewise.

2021-05-10  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/arm_mve.h (__arm_vcmpeq*u*, __arm_vcmpne*u*): Call
	the 's' version of the builtin.

2021-05-10  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100492
	* tree-loop-distribution.c (find_seed_stmts_for_distribution):
	Find nothing when the loop contains an irreducible region.

2021-05-10  Richard Biener  <rguenther@suse.de>

	PR middle-end/100464
	PR c++/100468
	* gimple-fold.c (canonicalize_constructor_val): Do not set
	TREE_ADDRESSABLE.

2021-05-10  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100434
	* tree-ssa-dse.c (initialize_ao_ref_for_dse): Handle
	call LHS.
	(dse_optimize_stmt): Handle call LHS by dropping the
	LHS or the whole call if it doesn't have other
	side-effects.
	(pass_dse::execute): Adjust.

2021-05-10  Martin Liska  <mliska@suse.cz>

	* Makefile.in: Add missing genversion rule.

2021-05-10  Alex Coplan  <alex.coplan@arm.com>

	PR target/99960
	* config/arm/mve.md (*mve_mov<mode>): Simplify output code. Use
	vldrw.u32 and vstrw.32 for V2D[IF]mode loads and stores.

2021-05-10  Martin Liska  <mliska@suse.cz>

	* builtins.c (is_builtin_name): Use startswith
	function instead of strncmp.
	* collect2.c (main): Likewise.
	(has_lto_section): Likewise.
	(scan_libraries): Likewise.
	* coverage.c (coverage_checksum_string): Likewise.
	(coverage_init): Likewise.
	* dwarf2out.c (is_cxx): Likewise.
	(gen_compile_unit_die): Likewise.
	* gcc-ar.c (main): Likewise.
	* gcc.c (init_spec): Likewise.
	(read_specs): Likewise.
	(execute): Likewise.
	(check_live_switch): Likewise.
	* genattrtab.c (write_attr_case): Likewise.
	(IS_ATTR_GROUP): Likewise.
	* gencfn-macros.c (main): Likewise.
	* gengtype.c (type_for_name): Likewise.
	(gen_rtx_next): Likewise.
	(get_file_langdir): Likewise.
	(write_local): Likewise.
	* genmatch.c (get_operator): Likewise.
	(get_operand_type): Likewise.
	(expr::gen_transform): Likewise.
	* genoutput.c (validate_optab_operands): Likewise.
	* incpath.c (add_sysroot_to_chain): Likewise.
	* langhooks.c (lang_GNU_C): Likewise.
	(lang_GNU_CXX): Likewise.
	(lang_GNU_Fortran): Likewise.
	(lang_GNU_OBJC): Likewise.
	* lto-wrapper.c (run_gcc): Likewise.
	* omp-general.c (omp_max_simt_vf): Likewise.
	* omp-low.c (omp_runtime_api_call): Likewise.
	* opts-common.c (parse_options_from_collect_gcc_options): Likewise.
	* read-rtl-function.c (function_reader::read_rtx_operand_r): Likewise.
	* real.c (real_from_string): Likewise.
	* selftest.c (assert_str_startswith): Likewise.
	* timevar.c (timer::validate_phases): Likewise.
	* tree.c (get_file_function_name): Likewise.
	* ubsan.c (ubsan_use_new_style_p): Likewise.
	* varasm.c (default_function_rodata_section): Likewise.
	(incorporeal_function_p): Likewise.
	(default_section_type_flags): Likewise.
	* system.h (startswith): Define startswith.

2021-05-10  Martin Liska  <mliska@suse.cz>

	* bitmap.h (class auto_bitmap): Remove
	__cplusplus >= 201103.
	* config/aarch64/aarch64.c: Likewise.
	* gimple-ssa-store-merging.c (store_immediate_info::store_immediate_info):
	Likewise.
	* sbitmap.h: Likewise.

2021-05-10  Martin Liska  <mliska@suse.cz>

	* Makefile.in: Rename gcov-iov to genversion and depend
	on version.h (instead of gcov-iov.h).
	* gcov-io.h: Include version.h instread of gcov-iov.h.
	* gengtype-state.c (read_state_version): Likewise.
	* gcov-iov.c: Moved to...
	* genversion.c: ...here.
	* lto-streamer.h (LTO_major_version): Define it with
	GCC_major_version.
	* version.c: Removed.
	* version.h: Removed.

2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (UNSPEC_ARC_DMPYWH): Define.
	* config/arc/simdext.md (VCT): Add predicates for iterator
	elements.
	(EMUVEC): Define.
	(voptab): Likewise.
	(vec_widen_<V_US>mult_hi_v4hi): Change pattern predicate.
	(<voptab>v2si3): New patterns.
	(neg): Likewise.
	(reduc_plus_scal_v4hi): Likewise.
	(reduc_plus_scal_v2si): Likewise.
	(vec_duplicatev2si): Likewise.
	(vec_duplicatev4hi): Likewise.

2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/simdext.md: Format and cleanup file.

2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/simdext.md (movmisalignv2hi): Allow misaligned access
	only when munaligned-access option is on.
	(movmisalign<mode>): Likewise.

2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>

	* common/config/arc/arc-common.c (arc_handle_option): Remove dot
	from string.
	* config/arc/arc.c (arc_reorg): Remove underscore from string.

2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.h (CLZ_DEFINED_VALUE_AT_ZERO): Define.
	(CTZ_DEFINED_VALUE_AT_ZERO): Likewise.
	* config/arc/arc.md (clrsbsi2): Cleanup pattern.
	(norm_f): Likewise.
	(ffs): Likewise.
	(ffs_f): Likewise.
	(clzsi2): Use fls instruction when available.
	(arc_clzsi2): Likewise.

2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.h (ADDITIONAL_REGISTER_NAMES): Add r26 and r27.

2021-05-10  Claudiu Zissulescu  <claziss@synopsys.com>

	* doc/extend.texi (__builtin_arc_sr): Swap arguments.

2021-05-10  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR middle-end/100467
	* toplev.c (compile_file): Call insn_locations_init before
	targetm.asm_out.code_end.

2021-05-07  Andrew Stubbs  <ams@codesourcery.com>

	Revert:
	2021-05-07  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn.c (gcn_scalar_mode_supported_p): Disable TImode.

2021-05-07  Jakub Jelinek  <jakub@redhat.com>
	    Andrew Stubbs  <amd@codesourcery.com>

	PR target/100418
	* builtins.c (try_store_by_multiple_pieces): Use force_operand for
	emit_move_insn operands.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

	* cfgexpand.c (expand_gimple_basic_block): Do not inherit a current
	location for the outgoing edges of an empty block.
	* dwarf2out.c (add_subscript_info): Retrieve the bounds and index
	type by means of the get_array_descr_info langhook, if it is set and
	returns true.  Remove obsolete code dealing with unnamed subtypes.

2021-05-07  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (ssa_block_ranges): Virtualize.
	(sbr_vector): Renamed from ssa_block_cache.
	(sbr_vector::sbr_vector): Allocate from obstack abd initialize.
	(ssa_block_ranges::~ssa_block_ranges): Remove.
	(sbr_vector::set_bb_range): Use varying and undefined cached values.
	(ssa_block_ranges::set_bb_varying): Remove.
	(sbr_vector::get_bb_range): Adjust assert.
	(sbr_vector::bb_range_p): Adjust assert.
	(~block_range_cache): No freeing loop required.
	(block_range_cache::get_block_ranges): Remove.
	(block_range_cache::set_bb_range): Inline get_block_ranges.
	(block_range_cache::set_bb_varying): Remove.
	* gimple-range-cache.h (set_bb_varying): Remove prototype.
	* value-range.h (irange_allocator::get_memory): New.

2021-05-07  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-cache.cc (non_null_ref::non_null_deref_p): Search
	dominator tree is available and requested.
	(ranger_cache::ssa_range_in_bb): Don't search dom tree here.
	(ranger_cache::fill_block_cache): Don't search dom tree here either.
	* gimple-range-cache.h (non_null_deref_p): Add dom_search param.

2021-05-07  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range.cc (gimple_ranger::range_on_exit): Handle block with
	only PHI nodes better.

2021-05-07  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-edge.h (gimple_outgoing_range): Rename from
	outgoing_range.
	(gcond_edge_range): Export prototype.
	* gimple-range-edge.cc (gcond_edge_range): New.
	(gimple_outgoing_range::edge_range_p): Use gcond_edge_range.
	* gimple-range-gori.h (gori_compute): Use gimple_outgoing_range.

2021-05-07  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range-edge.cc (outgoing_range::calc_switch_ranges): Compute
	default range into a temp and allocate only what is needed.

2021-05-07  Andrew MacLeod  <amacleod@redhat.com>

	* range-op.cc (operator_trunc_mod::wi_fold): x % 0 is UNDEFINED.

2021-05-07  Andrew MacLeod  <amacleod@redhat.com>

	* gimple-range.h (gimple_range_global): Pick up parameter initial
	values, and use-before defined locals are UNDEFINED.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

	* doc/extend.texi (scalar_storage_order): Mention effect on pointer
	and vector fields.
	* tree.h (reverse_storage_order_for_component_p): Return false if
	the type is a pointer.

2021-05-07  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn.c (gcn_scalar_mode_supported_p): Disable TImode.

2021-05-07  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/98218
	* config/i386/i386-expand.c (ix86_expand_sse_movcc):
	Handle V8QI, V4HI and V2SI modes.
	* config/i386/mmx.md (mmx_pblendvb): New insn pattern.
	* config/i386/sse.md (unspec): Move UNSPEC_BLENDV ...
	* config/i386/i386.md (unspec): ... here.

2021-05-07  Tobias Burnus  <tobias@codesourcery.com>
	    Tom de Vries  <tdevries@suse.de>

	* omp-low.c (lower_rec_simd_input_clauses): Set max_vf = 1 if
	a truth_value_p reduction variable is nonintegral.

2021-05-07  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100445
	* config/i386/i386-expand.c (ix86_use_mask_cmp_p):
	Return false for mode sizes < 16.

2021-05-07  Jakub Jelinek  <jakub@redhat.com>

	PR target/100445
	* config/i386/mmx.md (*xop_pcmov_<mode>): New define_insn.

2021-05-06  Martin Jambor  <mjambor@suse.cz>

	* ipa-sra.c (ipa_sra_dump_all_summaries): Dump edge summaries even
	when there is no function summary.
	(ipa_sra_summarize_function): produce edge summaries even when
	bailing out early.

2021-05-06  Tom Tromey  <tom@tromey.com>

	* godump.c (string_hash_eq): Remove.
	(go_finish): Use htab_eq_string.

2021-05-06  Tom Tromey  <tom@tromey.com>

	* gengtype-state.c (read_state): Use htab_eq_string.
	(string_eq): Remove.

2021-05-06  Tom Tromey  <tom@tromey.com>

	* gensupport.c (htab_eq_string): Remove.

2021-05-06  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR ipa/97937
	* debug.h (gcc_debug_hooks): Add set_ignored_loc function pointer.
	* dwarf2out.h (dw_fde_node::ignored_debug): New data item.
	* dbxout.c (dbx_debug_hooks, xcoff_debug_hooks): Add dummy
	set_ignored_loc callbacks.
	* debug.c (do_nothing_debug_hooks): Likewise.
	* vmsdbgout.c (vmsdbg_debug_hooks): Likewise.
	* dwarf2out.c (text_section_used, cold_text_section_used): Remove.
	(in_text_section_p, last_text_label, last_cold_label,
	switch_text_ranges, switch_cold_ranges): New data items.
	(dwarf2out_note_section_used): Remove.
	(dwarf2out_begin_prologue): Set fde->ignored_debug and
	in_text_section_p.
	(mark_ignored_debug_section): New helper function.
	(dwarf2out_end_epilogue, dwarf2out_switch_text_section): Call
	mark_ignored_debug_section.
	(dwarf2_debug_hooks): Use dwarf2out_set_ignored_loc.
	(dwarf2_lineno_debug_hooks): Use dummy for set_ignored_loc.
	(size_of_aranges): Adjust formula for multi-part text ranges size.
	(output_aranges): Output multi-part text ranges.
	(dwarf2out_set_ignored_loc): New callback function.
	(dwarf2out_finish): Output multi-part text ranges.
	(dwarf2out_c_finalize): Clear new data items.
	* final.c (final_start_function_1): Call set_ignored_loc callback.
	(final_scan_insn_1): Likewise.
	* ggc-page.c (gt_ggc_mx): New helper function.
	* stringpool.c (gt_pch_nx): Likewise.

2021-05-06  Richard Biener  <rguenther@suse.de>

	* timevar.def (TV_TREE_INSERT_PHI_NODES): Remove.
	(TV_TREE_SSA_REWRITE_BLOCKS): Likewise.
	(TV_TREE_INTO_SSA): New.
	* tree-into-ssa.c (insert_phi_nodes): Do not account separately.
	(rewrite_blocks): Likewise.
	(pass_data_build_ssa): Account to TV_TREE_INTO_SSA.

2021-05-06  Jakub Jelinek  <jakub@redhat.com>

	* tree-ssa-phiopt.c (value_replacement, minmax_replacement,
	abs_replacement, xor_replacement,
	cond_removal_in_popcount_clz_ctz_pattern,
	replace_phi_edge_with_variable): Change type of phi argument from
	gimple * to gphi *.

2021-05-06  Richard Biener  <rguenther@suse.de>

	* tree-ssa-loop-split.c (split_loop): Delay updating SSA form.
	Output an opt-info message.
	(do_split_loop_on_cond): Likewise.
	(tree_ssa_split_loops): Update SSA form here.

2021-05-06  Richard Biener  <rguenther@suse.de>

	* tree-inline.c (tree_function_versioning): Fix DECL_BY_REFERENCE
	return variable removal.

2021-05-06  Marius Hillenbrand  <mhillen@linux.ibm.com>

	* config/s390/s390-builtins.def (O_M5, O1_M5, ...): Remove unused macros.
	(s390_vec_permi_s64, s390_vec_permi_b64, s390_vec_permi_u64)
	(s390_vec_permi_dbl, s390_vpdi): Use the O3_U2 type for the immediate
	operand.
	* config/s390/s390.c (s390_const_operand_ok): Remove unused
	values.

2021-05-06  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/94589
	* tree-ssa-phiopt.c (tree_ssa_phiopt_worker): Call
	spaceship_replacement.
	(cond_only_block_p, spaceship_replacement): New functions.

2021-05-06  Richard Biener  <rguenther@suse.de>

	PR ipa/100373
	* tree-emutls.c (gen_emutls_addr): Pass in whether we're
	dealing with a debug use and only query existing addresses
	if so.
	(lower_emutls_1): Avoid splitting out addresses for debug
	stmts, reset the debug stmt when we fail to find existing
	lowered addresses.
	(lower_emutls_phi_arg): Set wi.stmt.

2021-05-06  Christoph Muellner  <cmuellner@gcc.gnu.org>

	PR target/100266
	* config/riscv/riscv.c (riscv_block_move_loop): Use cbranch helper.
	* config/riscv/riscv.md (cbranch<mode>4): Generate helpers.
	(stack_protect_test): Use cbranch helper.

2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>

	PR target/100402
	* config/i386/i386.c (ix86_compute_frame_layout): For a SEH target,
	always return the establisher frame for __builtin_frame_address (0).

2021-05-05  Ivan Sorokin  <vanyacpp@gmail.com>

	PR target/91400
	* config/i386/i386-builtins.c (ix86_cpu_model_type_node): New.
	(ix86_cpu_model_var): Likewise.
	(ix86_cpu_features2_type_node): Likewise.
	(ix86_cpu_features2_var): Likewise.
	(fold_builtin_cpu): Cache __cpu_model and __cpu_features2 with
	their types.

2021-05-05  Martin Sebor  <msebor@redhat.com>

	* passes.def (pass_warn_printf): Run after SSA.

2021-05-05  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	* config/arm/neon.md (neon_vtst_combine<mode>): New pattern.
	* config/arm/predicates.md (minus_one_operand): New predicate.

2021-05-05  Jeff Law  <jlaw@tachyum.com>

	* config/avr/avr.md: Remove references to CC_STATUS_INIT.

2021-05-05  Stefan Schulze Frielinghaus  <stefansf@linux.ibm.com>

	PR rtl-optimization/100263
	* postreload.c (move2add_valid_value_p): Ensure register can
	change mode.

2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>

	PR rtl-optimization/100411
	* cfgcleanup.c (try_crossjump_to_edge): Also skip end of prologue
	and beginning of function markers.

2021-05-05  Jeff Law  <jlaw@tachyum.com>

	* config/cr16/cr16.h (NOTICE_UPDATE_CC): Remove.
	* config/cr16/cr16.c (notice_update_cc): Remove.
	* config/cr16/cr16-protos.h (notice_update_cc): Remove.

2021-05-05  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/98218
	* config/i386/i386-expand.c (ix86_expand_int_sse_cmp):
	Handle V8QI, V4HI and V2SI modes.
	* config/i386/i386.c (ix86_build_const_vector): Handle V2SImode.
	(ix86_build_signbit_mask): Ditto.
	* config/i386/mmx.md (MMXMODE14): New mode iterator.
	(<smaxmin:code><MMXMODE14:mode>3): New expander.
	(*mmx_<smaxmin:code><MMXMODE14:mode>3): New insn pattern.
	(<umaxmin:code><MMXMODE24:mode>3): New expander.
	(*mmx_<umaxmin:code><MMXMODE24:mode>3): New insn pattern.
	(vec_cmp<MMXMODEI:mode><MMXMODEI:mode>): New expander.
	(vec_cmpu<MMXMODEI:mode><MMXMODEI:mode>): Ditto.
	(vcond<MMXMODEI:mode><MMXMODEI:mode>): Ditto.
	(vcondu<MMXMODEI:mode><MMXMODEI:mode>): Ditto.
	(vcond_mask_<MMXMODEI:mode><MMXMODEI:mode>): Ditto.

2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>

	* dwarf2out.c (loc_list_from_tree_1) <DECL>: During early DWARF, do
	not expand the VALUE_EXPR of variables put in the non-local frame.
	* gimplify.c (gimplify_type_sizes) <RECORD_TYPE>: If the type is not
	to be ignored for debug info, ensure its variable offsets are not.

2021-05-05  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/79333
	* tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_stmt):
	Fold stmt following SSA edges.

2021-05-05  Richard Biener  <rguenther@suse.de>

	PR middle-end/100394
	* calls.c (expand_call): Preserve possibly throwing calls.
	* cfgexpand.c (expand_call_stmt): When a call can throw signal
	RTL expansion there are side-effects.
	* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Simplify,
	mark all possibly throwing stmts necessary unless we can elide
	dead EH.
	* tree-ssa-dse.c (pass_dse::execute): Preserve exceptions unless
	-fdelete-dead-exceptions.
	* tree.h (DECL_PURE_P): Add note about exceptions.

2021-05-05  Alexandre Oliva  <oliva@adacore.com>

	* config/i386/vxworks.h (DBX_REGISTER_NUMBER): Make it
	unconditional.

2021-05-04  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/rs6000-call.c (rs6000_output_mi_thunk): Use
	get_fnname_from_decl for name of thunk.
	* config/rs6000/rs6000.c (rs6000_declare_alias): Use assemble_name
	and ASM_OUTPUT_LABEL.
	(rs6000_xcoff_declare_function_name): Use assemble_name and
	ASM_OUTPUT_LABEL.
	(rs6000_xcoff_declare_object_name): Use ASM_OUTPUT_LABEL.
	(rs6000_xcoff_encode_section_info): Don't add mapping class
	for aliases.  Always add [DS] mapping class to primary
	FUNCTION_DECL.
	(rs6000_asm_weaken_decl): Don't explicitly add [DS].

2021-05-04  Martin Sebor  <msebor@redhat.com>

	PR middle-end/100307
	* builtins.c (compute_objsize_r): Clear base0 for pointers.

2021-05-04  Jeff Law  <jlaw@tachyum.com>

	* config/bfin/bfin.h (NOTICE_UPDATE_CC): Remove.

2021-05-04  Segher Boessenkool  <segher@kernel.crashing.org>

	* caller-save.c: Remove CC0.
	* cfgcleanup.c: Remove CC0.
	* cfgrtl.c: Remove CC0.
	* combine.c: Remove CC0.
	* compare-elim.c: Remove CC0.
	* conditions.h: Remove CC0.
	* config/h8300/h8300.h: Remove CC0.
	* config/h8300/h8300-protos.h: Remove CC0.
	* config/h8300/peepholes.md: Remove CC0.
	* config/i386/x86-tune-sched.c: Remove CC0.
	* config/m68k/m68k.c: Remove CC0.
	* config/rl78/rl78.c: Remove CC0.
	* config/sparc/sparc.c: Remove CC0.
	* config/xtensa/xtensa.c: Remove CC0.
	(gen_conditional_move):  Use pc_rtx instead of cc0_rtx in a piece of
	RTL where that is used as a placeholder only.
	* cprop.c: Remove CC0.
	* cse.c: Remove CC0.
	* cselib.c: Remove CC0.
	* df-problems.c: Remove CC0.
	* df-scan.c: Remove CC0.
	* doc/md.texi: Remove CC0.  Adjust an example.
	* doc/rtl.texi: Remove CC0.  Adjust an example.
	* doc/tm.texi: Regenerate.
	* doc/tm.texi.in: Remove CC0.
	* emit-rtl.c: Remove CC0.
	* final.c: Remove CC0.
	* fwprop.c: Remove CC0.
	* gcse-common.c: Remove CC0.
	* gcse.c: Remove CC0.
	* genattrtab.c: Remove CC0.
	* genconfig.c: Remove CC0.
	* genemit.c: Remove CC0.
	* genextract.c: Remove CC0.
	* gengenrtl.c: Remove CC0.
	* genrecog.c: Remove CC0.
	* haifa-sched.c: Remove CC0.
	* ifcvt.c: Remove CC0.
	* ira-costs.c: Remove CC0.
	* ira.c: Remove CC0.
	* jump.c: Remove CC0.
	* loop-invariant.c: Remove CC0.
	* lra-constraints.c: Remove CC0.
	* lra-eliminations.c: Remove CC0.
	* optabs.c: Remove CC0.
	* postreload-gcse.c: Remove CC0.
	* postreload.c: Remove CC0.
	* print-rtl.c: Remove CC0.
	* read-rtl-function.c: Remove CC0.
	* reg-notes.def: Remove CC0.
	* reg-stack.c: Remove CC0.
	* reginfo.c: Remove CC0.
	* regrename.c: Remove CC0.
	* reload.c: Remove CC0.
	* reload1.c: Remove CC0.
	* reorg.c: Remove CC0.
	* resource.c: Remove CC0.
	* rtl.c: Remove CC0.
	* rtl.def: Remove CC0.
	* rtl.h: Remove CC0.
	* rtlanal.c: Remove CC0.
	* sched-deps.c: Remove CC0.
	* sched-rgn.c: Remove CC0.
	* shrink-wrap.c: Remove CC0.
	* simplify-rtx.c: Remove CC0.
	* system.h: Remove CC0.  Poison NOTICE_UPDATE_CC, CC_STATUS_MDEP_INIT,
	CC_STATUS_MDEP, and CC_STATUS.
	* target.def: Remove CC0.
	* valtrack.c: Remove CC0.
	* var-tracking.c: Remove CC0.

2021-05-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100414
	* tree-ssa-phiopt.c (get_non_trapping): Do not compute dominance
	info here.
	(tree_ssa_phiopt_worker): But unconditionally here.

2021-05-04  Tobias Burnus  <tobias@codesourcery.com>

	* omp-low.c (lower_rec_input_clauses, lower_reduction_clauses): Handle
	&& and || with floating-point and complex arguments.

2021-05-04  Eric Botcazou  <ebotcazou@adacore.com>

	* tree-inline.c (insert_debug_decl_map): Delete.
	(copy_debug_stmt): Minor tweak.
	(setup_one_parameter): Do not use a variable if the value is either
	a read-only DECL or a non-addressable local variable in the caller.
	In this case, insert the debug-only variable in the map manually.
	(expand_call_inline): Do not generate a CLOBBER for these values.
	* tree-inline.h (debug_map): Minor tweak.

2021-05-04  Eric Botcazou  <ebotcazou@adacore.com>

	* builtins.c (builtin_with_linkage_p): Return true for stp[n]cpy.
	* symtab.c (symtab_node::output_to_lto_symbol_table_p): Tidy up.

2021-05-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100329
	* tree-ssa-reassoc.c (can_reassociate_p): Do not reassociate
	asm goto defs.
	(insert_stmt_after): Assert we're not running into asm goto.

2021-05-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100398
	* tree-ssa-dse.c (pass_dse::execute): Preserve control
	altering stmts.

2021-05-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	* builtins.c (try_store_by_multiple_pieces): Fix constfun's prototype.

2021-05-04  Alexandre Oliva  <oliva@adacore.com>

	* builtins.c (try_store_by_multiple_pieces): New.
	(expand_builtin_memset_args): Use it.  If target_char_cast
	fails, proceed as for non-constant val.  Pass len's ctz to...
	* expr.c (clear_storage_hints): ... this.  Try store by
	multiple pieces after setmem.
	(clear_storage): Adjust.
	* expr.h (clear_storage_hints): Likewise.
	(try_store_by_multiple_pieces): Declare.
	* passes.def: Replace the last copy_prop with ccp.

2021-05-03  Tom de Vries  <tdevries@suse.de>

	PR target/100321
	* omp-low.c (lower_rec_input_clauses): Disable SIMT for user-defined
	reduction.

2021-05-03  Richard Biener  <rguenther@suse.de>

	* tree-ssa-dse.c (dse_classify_store): Track two PHI defs.

2021-05-03  Richard Biener  <rguenther@suse.de>

	* tree-ssa-dse.c: Do not include domwalk.h but cfganal.h.
	(dse_dom_walker): Remove.
	(dse_dom_walker::dse_optimize_stmt): Rename...
	(dse_optimize_stmt): ... to this, pass in live_bytes sbitmap.
	(dse_dom_walker::before_dom_children): Inline ...
	(pass_dse::execute): ... here.  Perform a reverse program
	order walk.

2021-05-03  H.J. Lu  <hjl.tools@gmail.com>

	PR bootstrap/99703
	* configure: Regenerated.

2021-05-03  Ilya Leoshkevich  <iii@linux.ibm.com>

	PR target/100217
	* config/s390/s390.c (s390_hard_fp_reg_p): New function.
	(s390_md_asm_adjust): Handle hard registers.

2021-05-03  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/100382
	* tree-ssa-dse.c: Include tree-eh.h.
	(dse_dom_walker::before_dom_children): Don't remove stmts if
	stmt_unremovable_because_of_non_call_eh_p is true.

2021-05-02  David Edelsohn  <dje.gcc@gmail.com>

	* varasm.c (compute_reloc_for_var): Split out from...
	(get_variable_section): Use it.
	* output.h (compute_reloc_for_var): Declare.
	* config/rs6000/rs6000-protos.h
	(rs6000_xcoff_asm_output_aligned_decl_common): Change alignment to
	unsigned int.
	* config/rs6000/rs6000.c (rs6000_legitimize_tls_address_aix):
	Don't append storage mapping class to symbol.
	(rs6000_xcoff_asm_named_section): Add BS and UL mapping classes.
	Don't convert TLS BSS to common.
	(rs6000_xcoff_unique_section): Don't fall back to select_secton.
	(rs6000_xcoff_section_type_flags): Add SECTION_BSS if DECL is
	bss_initializer.
	(rs6000_xcoff_asm_globalize_decl_name): Don't strip storage
	mapping class.
	(rs6000_xcoff_asm_output_aligned_decl_common): Align is unsigned int.
	If align is 0 from TLS class, use the same rules as varasm.c
	If not common, switch to BSS section manually.
	If common, emit appropriate comm or lcomm directive.
	(rs6000_xcoff_encode_section_info): Add logic to append all
	storage mapping classes.
	(rs6000_asm_weaken_decl): Adjust for qualname symbols.
	* config/rs6000/xcoff.h (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Use
	rs6000_xcoff_asm_output_aligned_decl_common.
	(ASM_OUTPUT_ALIGNED_DECL_LOCAL): Use
	rs6000_xcoff_asm_output_aligned_decl_common.
	(ASM_OUTPUT_TLS_COMMON): Use
	rs6000_xcoff_asm_output_aligned_decl_common.

2021-05-02  Jakub Jelinek  <jakub@redhat.com>

	PR target/100375
	* config/nvptx/nvptx.c (nvptx_sese_pseudo): Use nullptr instead of 0
	as first argument of pseudo_node_t constructors.

2021-05-02  Jakub Jelinek  <jakub@redhat.com>

	PR target/100336
	* config/i386/t-i386 (TM_H): Add $(srcdir)/config/i386/i386-isa.def.

2021-05-01  Aldy Hernandez  <aldyh@redhat.com>

	* value-range.cc (DEFINE_INT_RANGE_GC_STUBS): Remove.
	(gt_pch_nx (int_range<1> *&)): New.
	(gt_ggc_mx (int_range<1> *&)): New.
	* value-range.h (class irange): Add GTY support for
	the base class.

2021-05-01  Geng Qi  <gengqi@linux.alibaba.com>

	* doc/options.texi (Negative): Change either or to both and.

2021-04-30  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add
	float_ml[as][q]_laneq builtin generator macros.
	* config/aarch64/aarch64-simd.md (mul_laneq<mode>3): Define.
	(aarch64_float_mla_laneq<mode>): Define.
	(aarch64_float_mls_laneq<mode>): Define.
	* config/aarch64/arm_neon.h (vmla_laneq_f32): Use RTL builtin
	instead of GCC vector extensions.
	(vmlaq_laneq_f32): Likewise.
	(vmls_laneq_f32): Likewise.
	(vmlsq_laneq_f32): Likewise.

2021-04-30  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add
	float_ml[as]_lane builtin generator macros.
	* config/aarch64/aarch64-simd.md (*aarch64_mul3_elt<mode>):
	Rename to...
	(mul_lane<mode>3): This, and re-order arguments.
	(aarch64_float_mla_lane<mode>): Define.
	(aarch64_float_mls_lane<mode>): Define.
	* config/aarch64/arm_neon.h (vmla_lane_f32): Use RTL builtin
	instead of GCC vector extensions.
	(vmlaq_lane_f32): Likewise.
	(vmls_lane_f32): Likewise.
	(vmlsq_lane_f32): Likewise.

2021-04-30  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add float_ml[as]
	builtin generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_float_mla<mode>):
	Define.
	(aarch64_float_mls<mode>): Define.
	* config/aarch64/arm_neon.h (vmla_f32): Use RTL builtin
	instead of relying on GCC vector extensions.
	(vmla_f64): Likewise.
	(vmlaq_f32): Likewise.
	(vmlaq_f64): Likewise.
	(vmls_f32): Likewise.
	(vmls_f64): Likewise.
	(vmlsq_f32): Likewise.
	(vmlsq_f64): Likewise.
	* config/aarch64/iterators.md: Define VDQF_DF mode iterator.

2021-04-30  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add
	float_ml[as]_n_builtin generator macros.
	* config/aarch64/aarch64-simd.md (*aarch64_mul3_elt_from_dup<mode>):
	Rename to...
	(mul_n<mode>3): This, and re-order arguments.
	(aarch64_float_mla_n<mode>): Define.
	(aarch64_float_mls_n<mode>): Define.
	* config/aarch64/arm_neon.h (vmla_n_f32): Use RTL builtin
	instead of inline asm.
	(vmlaq_n_f32): Likewise.
	(vmls_n_f32): Likewise.
	(vmlsq_n_f32): Likewise.

2021-04-30  Jonathan Wright  <joanthan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add pmull[2]
	builtin generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_pmullv8qi): Define.
	(aarch64_pmull_hiv16qi_insn): Define.
	(aarch64_pmull_hiv16qi): Define.
	* config/aarch64/arm_neon.h (vmull_high_p8): Use RTL builtin
	instead of inline asm.
	(vmull_p8): Likewise.

2021-04-30  Senthil Kumar Selvaraj  <saaadhu@gcc.gnu.org>

	* config/avr/avr.md: Adjust peepholes to match and
	generate parallels with clobber of REG_CC.
	(mov<mode>_insn): Rename to mov<mode>_insn_split.
	(*mov<mode>_insn): Rename to mov<mode>_insn.

2021-04-30  David Edelsohn  <dje.gcc@gmail.com>

	* varasm.c (use_blocks_for_decl_p): Don't use section anchors
	for VAR_DECLs if -fdata-sections enabled.

2021-04-30  Michael Meissner  <meissner@linux.ibm.com>

	PR bootstrap/100327
	* config/rs6000/rs6000.c
	(TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Define.
	(rs6000_libgcc_floating_mode_supported_p): New target hook.

2021-04-30  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-threadbackward.c (class thread_jumps): Split out code
	from here...
	(class back_threader_registry): ...to here...
	(class back_threader_profitability): ...and here...
	(thread_jumps::thread_through_all_blocks): Remove argument.
	(back_threader_registry::back_threader_registry): New.
	(back_threader_registry::~back_threader_registry): New.
	(back_threader_registry::thread_through_all_blocks): New.
	(thread_jumps::profitable_jump_thread_path): Move from here...
	(back_threader_profitability::profitable_path_p): ...to here.
	(thread_jumps::find_taken_edge): New.
	(thread_jumps::convert_and_register_current_path): Move...
	(back_threader_registry::register_path): ...to here.
	(thread_jumps::register_jump_thread_path_if_profitable): Move...
	(thread_jumps::maybe_register_path): ...to here.
	(thread_jumps::handle_phi): Call find_taken_edge and
	maybe_register_path.
	(thread_jumps::handle_assignment): Same.
	(thread_jumps::fsm_find_control_statement_thread_paths): Remove
	tree argument to handle_phi and handle_assignment.
	(thread_jumps::find_jump_threads_backwards): Set m_name.  Remove
	set of m_speed_p and m_max_threaded_paths.
	(pass_thread_jumps::execute): Remove second argument from
	find_jump_threads_backwards.
	(pass_early_thread_jumps::execute): Same.

2021-04-30  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-dom.c (class dom_jump_threader_simplifier): New.
	(class dom_opt_dom_walker): Initialize some class variables.
	(pass_dominator::execute): Pass evrp_range_analyzer and
	dom_jump_threader_simplifier to dom_opt_dom_walker.
	Adjust for some functions moving into classes.
	(simplify_stmt_for_jump_threading): Adjust and move to...
	(jump_threader_simplifier::simplify): ...here.
	(dom_opt_dom_walker::before_dom_children): Adjust for
	m_evrp_range_analyzer.
	(dom_opt_dom_walker::after_dom_children): Remove x_vr_values hack.
	(test_for_singularity): Place in dom_opt_dom_walker class.
	(dom_opt_dom_walker::optimize_stmt): The argument
	evrp_range_analyzer is now a class field.
	* tree-ssa-threadbackward.c (class thread_jumps): Add m_registry.
	(thread_jumps::thread_through_all_blocks): New.
	(thread_jumps::convert_and_register_current_path): Use m_registry.
	(pass_thread_jumps::execute): Adjust for thread_through_all_blocks
	being in the threader class.
	(pass_early_thread_jumps::execute): Same.
	* tree-ssa-threadedge.c (threadedge_initialize_values): Move...
	(jump_threader::jump_threader): ...here.
	(threadedge_finalize_values): Move...
	(jump_threader::~jump_threader): ...here.
	(jump_threader::remove_jump_threads_including): New.
	(jump_threader::thread_through_all_blocks): New.
	(record_temporary_equivalences_from_phis): Move...
	(jump_threader::record_temporary_equivalences_from_phis): ...here.
	(record_temporary_equivalences_from_stmts_at_dest): Move...
	(jump_threader::record_temporary_equivalences_from_stmts_at_dest):
	Here...
	(simplify_control_stmt_condition_1): Move to jump_threader class.
	(simplify_control_stmt_condition): Move...
	(jump_threader::simplify_control_stmt_condition): ...here.
	(thread_around_empty_blocks): Move...
	(jump_threader::thread_around_empty_blocks): ...here.
	(thread_through_normal_block): Move...
	(jump_threader::thread_through_normal_block): ...here.
	(thread_across_edge): Move...
	(jump_threader::thread_across_edge): ...here.
	(thread_outgoing_edges): Move...
	(jump_threader::thread_outgoing_edges): ...here.
	* tree-ssa-threadedge.h: Move externally facing functings...
	(class jump_threader): ...here...
	(class jump_threader_simplifier): ...and here.
	* tree-ssa-threadupdate.c (struct redirection_data): Remove comment.
	(jump_thread_path_allocator::jump_thread_path_allocator): New.
	(jump_thread_path_allocator::~jump_thread_path_allocator): New.
	(jump_thread_path_allocator::allocate_thread_edge): New.
	(jump_thread_path_allocator::allocate_thread_path): New.
	(jump_thread_path_registry::jump_thread_path_registry): New.
	(jump_thread_path_registry::~jump_thread_path_registry): New.
	(jump_thread_path_registry::allocate_thread_edge): New.
	(jump_thread_path_registry::allocate_thread_path): New.
	(dump_jump_thread_path): Make extern.
	(debug (const vec<jump_thread_edge *> &path)): New.
	(struct removed_edges): Move to tree-ssa-threadupdate.h.
	(struct thread_stats_d): Remove.
	(remove_ctrl_stmt_and_useless_edges): Make static.
	(lookup_redirection_data): Move...
	(jump_thread_path_registry::lookup_redirection_data): ...here.
	(ssa_redirect_edges): Make static.
	(thread_block_1): Move...
	(jump_thread_path_registry::thread_block_1): ...here.
	(thread_block): Move...
	(jump_thread_path_registry::thread_block): ...here.
	(thread_through_loop_header):  Move...
	(jump_thread_path_registry::thread_through_loop_header): ...here.
	(mark_threaded_blocks): Move...
	(jump_thread_path_registry::mark_threaded_blocks): ...here.
	(debug_path): Move...
	(jump_thread_path_registry::debug_path): ...here.
	(debug_all_paths): Move...
	(jump_thread_path_registry::dump): ..here.
	(rewire_first_differing_edge): Move...
	(jump_thread_path_registry::rewire_first_differing_edge): ...here.
	(adjust_paths_after_duplication): Move...
	(jump_thread_path_registry::adjust_paths_after_duplication): ...here.
	(duplicate_thread_path): Move...
	(jump_thread_path_registry::duplicate_thread_path): ..here.
	(remove_jump_threads_including): Move...
	(jump_thread_path_registry::remove_jump_threads_including): ...here.
	(thread_through_all_blocks): Move to...
	(jump_thread_path_registry::thread_through_all_blocks): ...here.
	(delete_jump_thread_path): Remove.
	(register_jump_thread): Move...
	(jump_thread_path_registry::register_jump_thread): ...here.
	* tree-ssa-threadupdate.h: Move externally facing functions...
	(class jump_thread_path_allocator): ...here...
	(class jump_thread_path_registry): ...and here.
	(thread_through_all_blocks): Remove.
	(struct removed_edges): New.
	(register_jump_thread): Remove.
	(remove_jump_threads_including): Remove.
	(delete_jump_thread_path): Remove.
	(remove_ctrl_stmt_and_useless_edges): Remove.
	(free_dom_edge_info): New prototype.
	* tree-vrp.c: Remove x_vr_values hack.
	(class vrp_jump_threader_simplifier): New.
	(vrp_jump_threader_simplifier::simplify): New.
	(vrp_jump_threader::vrp_jump_threader): Adjust method signature.
	Remove m_dummy_cond.
	Instantiate m_simplifier and m_threader.
	(vrp_jump_threader::thread_through_all_blocks): New.
	(vrp_jump_threader::simplify_stmt): Remove.
	(vrp_jump_threader::after_dom_children): Do not set m_dummy_cond.
	Remove x_vr_values hack.
	(execute_vrp): Adjust for thread_through_all_blocks being in a
	class.

2021-04-30  Christophe Lyon  <christophe.lyon@linaro.org>

	* genflags.c (gen_insn): Print failed expansion string.

2021-04-30  H.J. Lu  <hjl.tools@gmail.com>

	* expr.c (alignment_for_piecewise_move): Call mode_for_size
	without limit to MAX_FIXED_MODE_SIZE.

2021-04-30  H.J. Lu  <hjl.tools@gmail.com>

	PR middle-end/90773
	* builtins.c (builtin_memset_gen_str): Don't use return from
	simplify_gen_subreg.

2021-04-30  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/98060
	* config/i386/i386.md (*add<mode>3_carry_0r): New insn pattern.
	(*addsi3_carry_zext_0r): Ditto.
	(*sub<mode>3_carry_0): Ditto.
	(*subsi3_carry_zext_0r): Ditto.
	* config/i386/predicates.md (ix86_carry_flag_unset_operator):
	New predicate.
	* config/i386/i386.c (ix86_rtx_costs) <case PLUS, case MINUS>:
	Also consider ix86_carry_flag_unset_operator to calculate
	the cost of adc/sbb insn.

2021-04-30  Roman Zhuykov  <zhroma@ispras.ru>

	PR rtl-optimization/100225
	PR rtl-optimization/84878
	* modulo-sched.c (sms_schedule): Use note_stores to skip loops
	where we have an instruction which touches (writes) any hard
	register from df->regular_block_artificial_uses set.
	Allow not-single-set instruction only right before basic block
	tail.

2021-04-30  Geng Qi  <gengqi@linux.alibaba.com>

	* config/riscv/riscv.opt (march=,mabi=): Negative itself.

2021-04-30  LevyHsu  <admin@levyhsu.com>

	* config/riscv/riscv.c (riscv_min_arithmetic_precision): New.
	* config/riscv/riscv.h (TARGET_MIN_ARITHMETIC_PRECISION): New.
	* config/riscv/riscv.md (addv<mode>4, uaddv<mode>4): New.
	(subv<mode>4, usubv<mode>4, mulv<mode>4, umulv<mode>4): New.

2021-04-29  Alexandre Oliva  <oliva@adacore.com>

	* config.gcc: Merged x86 and x86_64 cpu_type-setting cases.

2021-04-29  Alexandre Oliva  <oliva@adacore.com>

	* config/i386/i386.h (ASM_OUTPUT_MAX_SKIP_PAD): Rename to...
	(ASM_OUTPUT_MAX_SKIP_ALIGN): ... this.  Enclose in do/while(0).
	* config/i386/i386.c: Adjust.
	* config/i386/i386.md: Adjust.
	* config/i386/darwin.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Drop.
	* config/i386/dragonfly.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
	* config/i386/freebsd.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
	* config/i386/gas.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
	* config/i386/gnu-user.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
	* config/i386/iamcu.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
	* config/i386/lynx.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
	* config/i386/netbsd-elf.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
	* config/i386/openbsdelf.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
	* config/i386/x86-64.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise.
	(ASM_OUTPUT_MAX_SKIP_PAD): Likewise.

2021-04-29  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386-expand.c (ix86_expand_int_compare):
	Swap operands of GTU and LEU comparison to emit carry flag comparison.
	* config/i386/i386.md (*add<mode>3_carry_0): Change insn
	predicate to allow more combine opportunities with memory operands.
	(*sub<mode>3_carry_0): Ditto.

2021-04-29  Richard Sandiford  <richard.sandiford@arm.com>

	PR rtl-optimization/100303
	* rtl-ssa/accesses.cc (function_info::make_use_available): Take a
	boolean that indicates whether the use will only be used in
	debug instructions.  Treat it in the same way that existing
	cross-EBB debug references would be handled if so.
	(function_info::make_uses_available): Likewise.
	* rtl-ssa/functions.h (function_info::make_uses_available): Update
	prototype accordingly.
	(function_info::make_uses_available): Likewise.
	* fwprop.c (try_fwprop_subst): Update call accordingly.

2021-04-29  Jeff Law  <jlaw@tachyum.com>

	* config/nios2/nios2-protos.h (nios2_fpu_insn_enabled): Move outside
	of RTX_CODE guard.

2021-04-29  Uroš Bizjak  <ubizjak@gmail.com>
	    Richard Biener  <rguenther@suse.de>

	PR target/100312
	* config/i386/i386-builtin.def (IX86_BUILTIN_MASKLOADPD)
	(IX86_BUILTIN_MASKLOADPS, IX86_BUILTIN_MASKLOADPD256)
	(IX86_BUILTIN_MASKLOADPS256, IX86_BUILTIN_MASKLOADD)
	(IX86_BUILTIN_MASKLOADQ, IX86_BUILTIN_MASKLOADD256)
	(IX86_BUILTIN_MASKLOADQ256): Move from SPECIAL_ARGS
	to PURE_ARGS category.
	* config/i386/i386-builtins.c (ix86_init_mmx_sse_builtins):
	Handle PURE_ARGS category.
	* config/i386/i386-expand.c (ix86_expand_builtin): Ditto.

2021-04-29  Eric Botcazou  <ebotcazou@adacore.com>

	* configure.ac: Check for the presence of sys/locking.h header and
	for whether _LK_LOCK is supported by _locking.
	* configure: Regenerate.
	* config.in: Likewise.
	* gcov-io.h: Define GCOV_LOCKED_WITH_LOCKING if HOST_HAS_LK_LOCK.
	* gcov-io.c (gcov_open): Add support for GCOV_LOCKED_WITH_LOCKING.
	* system.h: Include <sys/locking.h> if HAVE_SYS_LOCKING_H.

2021-04-29  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/predicates.md (fcmov_comparison_operator):
	Do not check for trivial FP comparison operator.
	<case GEU, case LTU>: Allow CCGZmode.
	<case GTU, case LEU>: Do not allow CCCmode.
	(ix86_comparison_operator) <case GTU, case LEU>: Allow only CCmode.
	(ix86_carry_flag_operator): Match only LTU and UNLT code.
	Do not check for trivial FP comparison operator.  Allow CCGZmode.

2021-04-29  Tom de Vries  <tdevries@suse.de>

	* omp-expand.c (expand_omp_simd): Add step_orig, and replace uses of
	fd->loop.step by either step or orig_step.

2021-04-29  Eric Botcazou  <ebotcazou@adacore.com>

	* config/sparc/sparc.c (gen_load_pcrel_sym): Delete.
	(load_got_register): Do the PIC dance here.
	(sparc_legitimize_tls_address): Simplify.
	(sparc_emit_probe_stack_range): Likewise.
	(sparc32_initialize_trampoline): Likewise.
	(sparc64_initialize_trampoline): Likewise.
	* config/sparc/sparc.md (load_pcrel_sym<P:mode>): Add @ marker.
	(probe_stack_range<P:mode>): Likewise.
	(flush<P:mode>): Likewise.
	(tgd_hi22<P:mode>): Likewise.
	(tgd_lo10<P:mode>): Likewise.
	(tgd_add<P:mode>): Likewise.
	(tgd_call<P:mode>): Likewise.
	(tldm_hi22<P:mode>): Likewise.
	(tldm_lo10<P:mode>): Likewise.
	(tldm_add<P:mode>): Likewise.
	(tldm_call<P:mode>): Likewise.
	(tldo_hix22<P:mode>): Likewise.
	(tldo_lox10<P:mode>): Likewise.
	(tldo_add<P:mode>): Likewise.
	(tie_hi22<P:mode>): Likewise.
	(tie_lo10<P:mode>): Likewise.
	(tie_add<P:mode>): Likewise.
	(tle_hix22<P:mode>): Likewise.
	(tle_lox10<P:mode>): Likewise.
	(stack_protect_setsi): Rename to...
	(stack_protect_set32): ...this.
	(stack_protect_setdi): Rename to...
	(stack_protect_set64): ...this.
	(stack_protect_set): Adjust calls to above.
	(stack_protect_testsi): Rename to...
	(stack_protect_test32): ...this.
	(stack_protect_testdi): Rename to...
	(stack_protect_test64): ...this.
	(stack_protect_test): Adjust calls to above.

2021-04-29  H.J. Lu  <hjl.tools@gmail.com>

	PR middle-end/90773
	* builtins.c (builtin_memcpy_read_str): Add a dummy argument.
	(builtin_strncpy_read_str): Likewise.
	(builtin_memset_read_str): Add an argument for the previous RTL
	information and generate the new RTL from the previous RTL info.
	(builtin_memset_gen_str): Likewise.
	* builtins.h (builtin_strncpy_read_str): Update the prototype.
	(builtin_memset_read_str): Likewise.
	* expr.c (by_pieces_ninsns): If targetm.overlap_op_by_pieces_p()
	returns true, round up size and alignment to the widest integer
	mode for maximum size.
	(pieces_addr::adjust): Add a pointer to by_pieces_prev argument
	and pass it to m_constfn.
	(op_by_pieces_d): Add m_push and m_overlap_op_by_pieces.
	(op_by_pieces_d::op_by_pieces_d): Add a bool argument to
	initialize m_push.  Initialize m_overlap_op_by_pieces with
	targetm.overlap_op_by_pieces_p ().
	(op_by_pieces_d::run): Pass the previous RTL information to
	pieces_addr::adjust and generate overlapping operations if
	m_overlap_op_by_pieces is true.
	(PUSHG_P): New.
	(move_by_pieces_d::move_by_pieces_d): Updated for op_by_pieces_d
	change.
	(store_by_pieces_d::store_by_pieces_d): Updated for op_by_pieces_d
	change.
	(can_store_by_pieces): Use by_pieces_constfn on constfun.
	(store_by_pieces): Use by_pieces_constfn on constfun.  Updated
	for op_by_pieces_d change.
	(clear_by_pieces_1): Add a dummy argument.
	(clear_by_pieces): Updated for op_by_pieces_d change.
	(compare_by_pieces_d::compare_by_pieces_d): Likewise.
	(string_cst_read_str): Add a dummy argument.
	* expr.h (by_pieces_constfn): Add a dummy argument.
	(by_pieces_prev): New.
	* target.def (overlap_op_by_pieces_p): New target hook.
	* config/i386/i386.c (TARGET_OVERLAP_OP_BY_PIECES_P): New.
	* doc/tm.texi.in: Add TARGET_OVERLAP_OP_BY_PIECES_P.
	* doc/tm.texi: Regenerated.

2021-04-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100253
	* tree-vect-stmts.c (vectorizable_load): Do not assume
	element alignment when DR_MISALIGNMENT is -1.
	(vectorizable_store): Likewise.

2021-04-29  Jakub Jelinek  <jakub@redhat.com>

	PR target/100302
	* config/aarch64/aarch64.c (aarch64_add_offset_1_temporaries): Use
	absu_hwi instead of abs_hwi.

2021-04-29  Richard Biener  <rguenther@suse.de>

	PR middle-end/38474
	* tree-ssa-structalias.c (add_graph_edge): Avoid direct
	forwarding when indirect forwarding through ESCAPED
	alread happens.

2021-04-29  Tom de Vries  <tdevries@suse.de>

	PR target/100232
	* internal-fn.c (expand_GOMP_SIMT_ENTER_ALLOC)
	(expand_GOMP_SIMT_LAST_LANE, expand_GOMP_SIMT_ORDERED_PRED)
	(expand_GOMP_SIMT_VOTE_ANY, expand_GOMP_SIMT_XCHG_BFLY)
	(expand_GOMP_SIMT_XCHG_IDX): Ensure target is assigned to.

2021-04-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99912
	* tree-ssa-dse.c (dse_dom_walker::m_need_cfg_cleanup): New.
	(dse_dom_walker::todo): Likewise.
	(dse_dom_walker::dse_optimize_stmt): Move VDEF check to the
	caller.
	(dse_dom_walker::before_dom_children): Remove trivially
	dead SSA defs and schedule CFG cleanup if we removed all
	PHIs in a block.
	(pass_dse::execute): Get TODO as computed by the DOM walker
	and return it.  Wipe dominator info earlier.

2021-04-29  Richard Biener  <rguenther@suse.de>

	PR ipa/100308
	* ipa-prop.c (ipcp_modif_dom_walker::before_dom_children):
	Track blocks to cleanup EH in new m_need_eh_cleanup.
	(ipcp_modif_dom_walker::cleanup_eh): New.
	(ipcp_transform_function): Release dominator info before
	doing EH cleanup.

2021-04-29  Martin Sebor  <msebor@redhat.com>

	PR middle-end/100250
	* attribs.c (attr_access::array_as_string): Avoid dereferencing
	a pointer when it's null.

2021-04-29  Martin Sebor  <msebor@redhat.com>

	* Makefile.in (OBJS): Add ipa-free-lang-data.o.
	* ipa-free-lang-data.cc: New file.
	* tree.c: Move pass free_lang_data to file above.
	 (build_array_type_1): Declare extern.
	* tree.h (build_array_type_1): Declare.

2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Modify comment to
	make consistent with updated RTL pattern.
	* config/aarch64/aarch64-simd.md (aarch64_<sur>qmovn<mode>):
	Implement using ss_truncate and us_truncate rather than
	unspecs.
	* config/aarch64/iterators.md: Remove redundant unspecs and
	iterator: UNSPEC_[SU]QXTN and SUQMOVN respectively.

2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_acle.h (__attribute__): Make intrinsic
	attributes consistent with those defined in arm_neon.h.

2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/arm_fp16.h (__attribute__): Make intrinsic
	attributes consistent with those defined in arm_neon.h.

2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add
	float_trunc_rodd builtin generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_float_trunc_rodd_df):
	Define.
	(aarch64_float_trunc_rodd_lo_v2sf): Define.
	(aarch64_float_trunc_rodd_hi_v4sf_le): Define.
	(aarch64_float_trunc_rodd_hi_v4sf_be): Define.
	(aarch64_float_trunc_rodd_hi_v4sf): Define.
	* config/aarch64/arm_neon.h (vcvtx_f32_f64): Use RTL builtin
	instead of inline asm.
	(vcvtx_high_f32_f64): Likewise.
	(vcvtxd_f32_f64): Likewise.
	* config/aarch64/iterators.md: Add FCVTXN unspec.

2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add tbx1 builtin
	generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_tbx1<mode>):
	Define.
	* config/aarch64/arm_neon.h (vqtbx1_s8): USE RTL builtin
	instead of inline asm.
	(vqtbx1_u8): Likewise.
	(vqtbx1_p8): Likewise.
	(vqtbx1q_s8): Likewise.
	(vqtbx1q_u8): Likewise.
	(vqtbx1q_p8): Likewise.
	(vtbx2_s8): Likewise.
	(vtbx2_u8): Likewise.
	(vtbx2_p8): Likewise.

2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add tbl1 builtin
	generator macros.
	* config/aarch64/arm_neon.h (vqtbl1_p8): Use RTL builtin
	instead of inline asm.
	(vqtbl1_s8): Likewise.
	(vqtbl1_u8): Likewise.
	(vqtbl1q_p8): Likewise.
	(vqtbl1q_s8): Likewise.
	(vqtbl1q_u8): Likewise.
	(vtbl1_s8): Likewise.
	(vtbl1_u8): Likewise.
	(vtbl1_p8): Likewise.
	(vtbl2_s8): Likewise.
	(vtbl2_u8): Likewise.
	(vtbl2_p8): Likewise.

2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add polynomial
	ssri_n buitin generator macro.
	* config/aarch64/arm_neon.h (vsri_n_p8): Use RTL builtin
	instead of inline asm.
	(vsri_n_p16): Likewise.
	(vsri_n_p64): Likewise.
	(vsriq_n_p8): Likewise.
	(vsriq_n_p16): Likewise.
	(vsriq_n_p64): Likewise.

2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Use VALLP mode
	iterator for polynomial ssli_n builtin generator macro.
	* config/aarch64/arm_neon.h (vsli_n_p8): Use RTL builtin
	instead of inline asm.
	(vsli_n_p16): Likewise.
	(vsliq_n_p8): Likewise.
	(vsliq_n_p16): Likewise.
	* config/aarch64/iterators.md: Define VALLP mode iterator.

2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Use VDQV_L
	iterator to generate [su]adalp RTL builtins.
	* config/aarch64/aarch64-simd.md: Use VDQV_L iterator in
	[su]adalp RTL pattern.
	* config/aarch64/arm_neon.h (vpadal_s32): Use RTL builtin
	instead of inline asm.
	(vpadal_u32): Likewise.

2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add [su]addlp
	builtin generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_<su>addlp<mode>):
	Define.
	* config/aarch64/arm_neon.h (vpaddl_s8): Use RTL builtin
	instead of inline asm.
	(vpaddl_s16): Likewise.
	(vpaddl_s32): Likewise.
	(vpaddl_u8): Likewise.
	(vpaddl_u16): Likewise.
	(vpaddl_u32): Likewise.
	(vpaddlq_s8): Likewise.
	(vpaddlq_s16): Likewise.
	(vpaddlq_s32): Likewise.
	(vpaddlq_u8): Likewise.
	(vpaddlq_u16): Likewise.
	(vpaddlq_u32): Liwewise.
	* config/aarch64/iterators.md: Define [SU]ADDLP unspecs with
	appropriate attributes.

2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Use VDQ_I iterator
	for aarch64_addp<mode> builtin macro generator.
	* config/aarch64/aarch64-simd.md: Use VDQ_I iterator in
	aarch64_addp<mode> RTL pattern.
	* config/aarch64/arm_neon.h (vpaddq_s8): Use RTL builtin
	instead of inline asm.
	(vpaddq_s16): Likewise.
	(vpaddq_s32): Likewise.
	(vpaddq_s64): Likewise.
	(vpaddq_u8): Likewise.
	(vpaddq_u16): Likewise.
	(vpaddq_u32): Likewise.
	(vpaddq_u64): Likewise.

2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add sq[r]dmulh_n
	builtin generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_sq<r>dmulh_n<mode>):
	Define.
	* config/aarch64/arm_neon.h (vqdmulh_n_s16): Use RTL builtin
	instead of inline asm.
	(vqdmulh_n_s32): Likewise.
	(vqdmulhq_n_s16): Likewise.
	(vqdmulhq_n_s32): Likewise.
	(vqrdmulh_n_s16): Likewise.
	(vqrdmulh_n_s32): Likewise.
	(vqrdmulhq_n_s16): Likewise.
	(vqrdmulhq_n_s32): Likewise.

2021-04-28  Tobias Burnus  <tobias@codesourcery.com>

	* doc/install.texi (--enable-offload-defaulted): Document.

2021-04-28  Senthil Kumar Selvaraj  <saaadhu@gcc.gnu.org>

	* config/avr/avr-dimode.md: Turn existing patterns into
	define_insn_and_split style patterns where the splitter
	adds a clobber of the condition code register.  Drop "cc"
	attribute.  Add new patterns to match output of
	the splitters.
	* config/avr/avr-fixed.md: Likewise.
	* config/avr/avr.c (cc_reg_rtx): New.
	(avr_parallel_insn_from_insns): Adjust insn count
	for removal of set of cc0.
	(avr_is_casesi_sequence): Likewise.
	(avr_casei_sequence_check_operands): Likewise.
	(avr_optimize_casesi): Likewise. Also insert
	new insns after jump_insn.
	(avr_pass_casesi::avr_rest_of_handle_casesi): Adjust
	for removal of set of cc0.
	(avr_init_expanders): Initialize cc_reg_rtx.
	(avr_regno_reg_class): Handle REG_CC.
	(cond_string): Remove usage of CC_OVERFLOW_UNUSABLE.
	(avr_notice_update_cc): Remove function.
	(ret_cond_branch): Remove usage of CC_OVERFLOW_UNUSABLE.
	(compare_condition): Adjust for PARALLEL with
	REG_CC clobber.
	(out_shift_with_cnt): Likewise.
	(ashlhi3_out): Likewise.
	(ashrhi3_out): Likewise.
	(lshrhi3_out): Likewise.
	(avr_class_max_nregs): Return single reg for REG_CC.
	(avr_compare_pattern): Check for REG_CC instead
	of cc0_rtx.
	(avr_reorg_remove_redundant_compare): Likewise.
	(avr_reorg):Adjust for PARALLEL with REG_CC clobber.
	(avr_hard_regno_nregs): Return single reg for REG_CC.
	(avr_hard_regno_mode_ok): Allow only CCmode for REG_CC.
	(avr_md_asm_adjust): Clobber REG_CC.
	(TARGET_HARD_REGNO_NREGS): Define.
	(TARGET_CLASS_MAX_NREGS): Define.
	(TARGET_MD_ASM_ADJUST): Define.
	* config/avr/avr.h (FIRST_PSEUDO_REGISTER): Adjust
	for REG_CC.
	(enum reg_class): Add CC_REG class.
	(NOTICE_UPDATE_CC): Remove.
	(CC_OVERFLOW_UNUSABLE): Remove.
	(CC_NO_CARRY): Remove.
	* config/avr/avr.md: Turn existing patterns into
	define_insn_and_split style patterns where the splitter
	adds a clobber of the condition code register.  Drop "cc"
	attribute.  Add new patterns to match output of
	the splitters.
	(sez): Remove unused pattern.

2021-04-28  Richard Earnshaw  <rearnsha@arm.com>

	PR target/100311
	* config/arm/arm.c (arm_hard_regno_mode_ok): Only allow VPR to be
	used in HImode.

2021-04-28  Richard Sandiford  <richard.sandiford@arm.com>

	PR target/100305
	* config/aarch64/constraints.md (Utq): Require the address to
	be valid for both the element mode and for V2DImode.

2021-04-28  Jakub Jelinek  <jakub@redhat.com>
	    Tobias Burnus  <tobias@codesourcery.com>

	* configure.ac (OFFLOAD_DEFAULTED): AC_DEFINE if offload-defaulted.
	* gcc.c (process_command): New variable.
	(driver::maybe_putenv_OFFLOAD_TARGETS): If OFFLOAD_DEFAULTED,
	set it if -foffload is defaulted.
	* lto-wrapper.c (OFFLOAD_TARGET_DEFAULT_ENV): Define.
	(compile_offload_image): If OFFLOAD_DEFAULTED and
	OFFLOAD_TARGET_DEFAULT is in the environment, don't fail
	if corresponding mkoffload can't be found.
	(compile_images_for_offload_targets): Likewise.  Free and clear
	offload_names if no valid offload is found.
	* config.in: Regenerate.
	* configure: Regenerate.

2021-04-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100292
	* tree-vect-generic.c (expand_vector_condition): Do not fold
	the comparisons.

2021-04-27  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/aix.h (SUBTARGET_DRIVER_SELF_SPECS): New.
	* config/rs6000/aix64.opt (m64): New.
	(m32): New.

2021-04-27  Maciej W. Rozycki  <macro@orcam.me.uk>

	* config/vax/vax.c (print_operand_address, vax_address_cost_1)
	(index_term_p): Handle ASHIFT too.

2021-04-27  Maciej W. Rozycki  <macro@orcam.me.uk>

	* config/vax/builtins.md (jbb<ccss>i<mode>): Remove operand #3.
	(sync_lock_test_and_set<mode>): Adjust accordingly.
	(sync_lock_release<mode>): Likewise.

2021-04-27  Maciej W. Rozycki  <macro@orcam.me.uk>

	* config/vax/vax-protos.h (adjacent_operands_p): Remove
	prototype.
	* config/vax/vax.c (adjacent_operands_p): Remove.

2021-04-27  Maciej W. Rozycki  <macro@linux-mips.org>

	* ifcvt.c (dead_or_predicable) [!IFCVT_MODIFY_TESTS]: Fall
	through to the non-conditional execution case if getting the
	condition for conditional execution has failed.

2021-04-27  Richard Sandiford  <richard.sandiford@arm.com>

	PR middle-end/100284
	* gimple.c (gimple_could_trap_p_1): Remove VEC_COND_EXPR test.
	* tree-eh.c (operation_could_trap_p): Handle VEC_COND_EXPR rather
	than asserting on it.

2021-04-27  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/rs6000.c (rs6000_aix_precompute_tls_p): Protect
	with TARGET_AIX_OS.

2021-04-27  David Edelsohn  <dje.gcc@gmail.com>

	PR target/94177
	* calls.c (precompute_register_parameters): Additionally test
	targetm.precompute_tls_p to pre-compute argument.
	* config/rs6000/aix.h (TARGET_PRECOMPUTE_TLS_P): Define.
	* config/rs6000/rs6000.c (rs6000_aix_precompute_tls_p): New.
	* target.def (precompute_tls_p): New.
	* doc/tm.texi.in (TARGET_PRECOMPUTE_TLS_P): Add hook documentation.
	* doc/tm.texi: Regenerated.

2021-04-27  Jakub Jelinek  <jakub@redhat.com>

	PR target/100200
	* config/aarch64/aarch64.c (aarch64_print_operand): Cast -UINTVAL
	back to HOST_WIDE_INT.

2021-04-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR target/100106
	* simplify-rtx.c (simplify_context::simplify_subreg): Check the
	memory alignment for the outer mode.

2021-04-27  H.J. Lu  <hjl.tools@gmail.com>

	PR middle-end/90773
	* expr.c (op_by_pieces_d::get_usable_mode): New member function.
	(op_by_pieces_d::run): Cange a while loop to a do-while loop.

2021-04-27  Alex Coplan  <alex.coplan@arm.com>

	PR target/99977
	* config/arm/arm.c (arm_split_compare_and_swap): Fix up codegen
	with negative immediates: ensure we expand cbranchsi4_scratch
	correctly and ensure we satisfy its constraints.
	* config/arm/sync.md
	(@atomic_compare_and_swap<CCSI:arch><NARROW:mode>_1): Don't
	attempt to tie two output operands together with constraints;
	collapse two alternatives.
	(@atomic_compare_and_swap<CCSI:arch><SIDI:mode>_1): Likewise.
	* config/arm/thumb1.md (cbranchsi4_neg_late): New.

2021-04-27  Jakub Jelinek  <jakub@redhat.com>

	PR target/100200
	* config/aarch64/predicates.md (aarch64_sub_immediate,
	aarch64_plus_immediate): Use -UINTVAL instead of -INTVAL.
	* config/aarch64/aarch64.md (casesi, rotl<mode>3): Likewise.
	* config/aarch64/aarch64.c (aarch64_print_operand,
	aarch64_split_atomic_op, aarch64_expand_subvti): Likewise.

2021-04-27  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/100239
	* tree-vect-generic.c (lower_vec_perm): Don't accept constant
	permutations with all indices from the first zero element as vec_shl.

2021-04-27  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/100254
	* cfgcleanup.c (outgoing_edges_match): Check REG_EH_REGION on
	last1 and last2 insns rather than BB_END (bb1) and BB_END (bb2) insns.

2021-04-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99912
	* passes.def: Add comment about new TODO_remove_unused_locals.
	* tree-stdarg.c (pass_data_stdarg): Run TODO_remove_unused_locals
	at start.

2021-04-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99912
	* passes.def (pass_all_optimizations): Add pass_dse before
	the first pass_dce, move the first pass_dse before the
	pass_dce following pass_pre.

2021-04-27  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/95527
	* generic-match-head.c: Include tm.h.
	* gimple-match-head.c: Include tm.h.
	* match.pd (CLZ == INTEGER_CST): Don't use
	#ifdef CLZ_DEFINED_VALUE_AT_ZERO, only test CLZ_DEFINED_VALUE_AT_ZERO
	if clz == CFN_CLZ.  Add missing val declaration.
	(CTZ cmp CST): New simplifications.

2021-04-27  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96696
	* expr.c (expand_expr_divmod): New function.
	(expand_expr_real_2) <case TRUNC_DIV_EXPR>: Use it for truncations and
	divisions.  Formatting fixes.
	<case MULT_EXPR>: Optimize x / y * y as x - x % y if the latter is
	cheaper.

2021-04-27  Martin Jambor  <mjambor@suse.cz>

	PR ipa/99951
	* ipa-param-manipulation.c (ipa_param_adjustments::modify_call):
	If removing a call statement LHS SSA name, release it.

2021-04-27  Richard Earnshaw  <rearnsha@arm.com>

	PR target/100236
	* config/arm/arm.c (THUMB2_WORK_REGS): Check PIC_OFFSET_TABLE_REGNUM
	is valid before including it in the mask.

2021-04-27  Richard Sandiford  <richard.sandiford@arm.com>

	PR target/100270
	* config/aarch64/aarch64.c (aarch64_comp_type_attributes): Handle
	SVE attributes.

2021-04-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100051
	* tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Add
	disambiguator based on access size vs. decl size.

2021-04-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100278
	* tree-ssa-pre.c (compute_avail): Give up when we cannot
	adjust TBAA beacuse of mismatching bases.

2021-04-27  Jakub Jelinek  <jakub@redhat.com>

	PR target/99405
	* config/i386/i386.md (*<insn><mode>3_mask, *<insn><mode>3_mask_1):
	For any_rotate define_insn_split and following splitters, use
	SWI iterator instead of SWI48.

2021-04-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99776
	* match.pd (bit_field_ref (ctor)): Relax element extract
	type compatibility checks.

2021-04-27  Cui,Lili  <lili.cui@intel.com>

	* common/config/i386/i386-common.c (processor_names):
	Sync processor_names with processor_type.
	* config/i386/i386-options.c (processor_cost_table):
	Sync processor_cost_table with processor_type.

2021-04-26  Aldy Hernandez  <aldyh@redhat.com>

	* value-range.cc (irange::irange_set_1bit_anti_range): Add assert.
	(irange::set): Call irange_set_1bit_anti_range for handling all
	1-bit ranges.  Fall through on ~[MIN,MAX].

2021-04-26  Aldy Hernandez  <aldyh@redhat.com>

	* value-range.cc (irange::legacy_num_pairs): Remove.
	(irange::invert): Change gcc_assert to gcc_checking_assert.
	* value-range.h (irange::num_pairs): Adjust for a cached
	num_pairs().  Also, rename all gcc_assert's to
	gcc_checking_assert's.

2021-04-26  Aldy Hernandez  <aldyh@redhat.com>

	* value-range.cc (irange::operator=): Set m_kind.
	(irange::copy_to_legacy): Handle varying and undefined sources
	as a legacy copy since they can be easily copied.
	(irange::irange_set): Set m_kind.
	(irange::irange_set_anti_range): Same.
	(irange::set): Rename normalize_min_max to normalize_kind.
	(irange::verify_range): Adjust for multi-ranges having the
	m_kind field set.
	(irange::irange_union): Set m_kind.
	(irange::irange_intersect): Same.
	(irange::invert): Same.
	* value-range.h (irange::kind): Always return m_kind.
	(irange::varying_p): Rename to...
	(irange::varying_comptaible_p): ...this.
	(irange::undefined_p): Only look at m_kind.
	(irange::irange): Always set VR_UNDEFINED if applicable.
	(irange::set_undefined): Always set VR_UNDEFINED.
	(irange::set_varying): Always set m_kind to VR_VARYING.
	(irange::normalize_min_max): Rename to...
	(irange::normalize_kind): ...this.

2021-04-26  Aldy Hernandez  <aldyh@redhat.com>

	* gimple-ssa-evrp-analyze.c (evrp_range_analyzer::set_ssa_range_info):
	Adjust for constant_p including varying_p.
	* tree-vrp.c (vrp_prop::finalize): Same.
	(determine_value_range): Same.
	* vr-values.c (vr_values::range_of_expr): Same.
	* value-range.cc (irange::symbolic_p): Do not check varying_p.
	(irange::constant_p): Same.

2021-04-26  Aldy Hernandez  <aldyh@redhat.com>

	* value-range.cc (irange::legacy_lower_bound): Replace
	  !undefined_p check with num_ranges > 0.
	(irange::legacy_upper_bound): Same.
	* value-range.h (irange::type): Same.
	(irange::lower_bound): Same.
	(irange::upper_bound): Same.

2021-04-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99956
	* gimple-loop-interchange.cc (compute_access_stride):
	Try instantiating the access in a shallower loop nest
	if instantiating failed.
	(compute_access_strides): Pass adjustable loop_nest
	to compute_access_stride.

2021-04-26  Christophe Lyon  <christophe.lyon@linaro.org>

	* doc/sourcebuild.texi (arm_cmse_hw): Document.

2021-04-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/iterators.md (vwcore): Handle V4BF, V8BF.

2021-04-26  Thomas Schwinge  <thomas@codesourcery.com>
	    Nathan Sidwell  <nathan@codesourcery.com>
	    Tom de Vries  <vries@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>
	    Kwok Cheung Yeung  <kcy@codesourcery.com>

	* omp-offload.c (oacc_validate_dims): Implement
	'-Wopenacc-parallelism'.
	* doc/invoke.texi (-Wopenacc-parallelism): Document.

2021-04-26  Richard Biener  <rguenther@suse.de>

	* tree-cfg.h (gimplify_build1): Remove.
	(gimplify_build2): Likewise.
	(gimplify_build3): Likewise.
	* tree-cfg.c (gimplify_build1): Move to tree-vect-generic.c.
	(gimplify_build2): Likewise.
	(gimplify_build3): Likewise.
	* tree-vect-generic.c (gimplify_build1): Move from tree-cfg.c.
	Modernize.
	(gimplify_build2): Likewise.
	(gimplify_build3): Likewise.
	(tree_vec_extract): Use resimplify with following SSA edges.
	(expand_vector_parallel): Avoid passing NULL size/bitpos
	to tree_vec_extract.
	* expr.c (store_constructor): Deal with zero-element CTORs.
	* match.pd (bit_field_ref <vector CTOR>): Make sure to
	produce vector constants when possible.

2021-04-26  Richard Biener  <rguenther@suse.de>

	* tree-complex.c: Include gimple-fold.h.
	(expand_complex_addition): Use gimple_build.
	(expand_complex_multiplication_components): Likewise.
	(expand_complex_multiplication): Likewise.
	(expand_complex_div_straight): Likewise.
	(expand_complex_div_wide): Likewise.
	(expand_complex_division): Likewise.
	(expand_complex_conjugate): Likewise.
	(expand_complex_comparison): Likewise.

2021-04-26  Richard Biener  <rguenther@suse.de>

	* tree-ssa-phiopt.c (two_value_replacement): Remove use
	of legacy gimplify_buildN API.

2021-04-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99473
	* tree-ssa-phiopt.c (cond_store_replacement): Handle all
	stores.

2021-04-26  Richard Biener  <rguenther@suse.de>

	* config/rs6000/rs6000-call.c (rs6000_gimple_fold_builtin):
	Use replace_call_with_value.

2021-04-26  Richard Biener  <rguenther@suse.de>

	* tree-ssa-propagate.h (valid_gimple_rhs_p): Remove.
	(update_gimple_call): Likewise.
	(update_call_from_tree): Likewise.
	* tree-ssa-propagate.c (valid_gimple_rhs_p): Remove.
	(valid_gimple_call_p): Likewise.
	(move_ssa_defining_stmt_for_defs): Likewise.
	(finish_update_gimple_call): Likewise.
	(update_gimple_call): Likewise.
	(update_call_from_tree): Likewise.
	(propagate_tree_value_into_stmt): Use replace_call_with_value.
	* gimple-fold.h (update_gimple_call): Declare.
	* gimple-fold.c (valid_gimple_rhs_p): Move here from
	tree-ssa-propagate.c.
	(update_gimple_call): Likewise.
	(valid_gimple_call_p): Likewise.
	(finish_update_gimple_call): Likewise, and simplify.
	(gimplify_and_update_call_from_tree): Implement
	update_call_from_tree functionality, avoid excessive
	push/pop_gimplify_context.
	(gimple_fold_builtin): Use only gimplify_and_update_call_from_tree.
	(gimple_fold_call): Likewise.
	* gimple-ssa-sprintf.c (try_substitute_return_value): Likewise.
	* tree-ssa-ccp.c (ccp_folder::fold_stmt): Likewise.
	(pass_fold_builtins::execute): Likewise.
	(optimize_stack_restore): Use replace_call_with_value.
	* tree-cfg.c (fold_loop_internal_call): Likewise.
	* tree-ssa-dce.c (maybe_optimize_arith_overflow): Use
	only gimplify_and_update_call_from_tree.
	* tree-ssa-strlen.c (handle_builtin_strlen): Likewise.
	(handle_builtin_strchr): Likewise.
	* tsan.c: Include gimple-fold.h instead of tree-ssa-propagate.h.

2021-04-26  Jakub Jelinek  <jakub@redhat.com>

	PR debug/100255
	* vmsdbgout.c (ASM_OUTPUT_DEBUG_STRING, vmsdbgout_begin_block,
	vmsdbgout_end_block, lookup_filename, vmsdbgout_source_line): Remove
	register keywords.

2021-04-25  liuhongt  <hongtao.liu@intel.com>

	PR target/98911
	* config/i386/i386-builtin.def (BDESC): Change the icode of
	the following builtins to CODE_FOR_nothing.
	* config/i386/i386.c (ix86_gimple_fold_builtin): Fold
	IX86_BUILTIN_PCMPEQB128, IX86_BUILTIN_PCMPEQW128,
	IX86_BUILTIN_PCMPEQD128, IX86_BUILTIN_PCMPEQQ,
	IX86_BUILTIN_PCMPEQB256, IX86_BUILTIN_PCMPEQW256,
	IX86_BUILTIN_PCMPEQD256, IX86_BUILTIN_PCMPEQQ256,
	IX86_BUILTIN_PCMPGTB128, IX86_BUILTIN_PCMPGTW128,
	IX86_BUILTIN_PCMPGTD128, IX86_BUILTIN_PCMPGTQ,
	IX86_BUILTIN_PCMPGTB256, IX86_BUILTIN_PCMPGTW256,
	IX86_BUILTIN_PCMPGTD256, IX86_BUILTIN_PCMPGTQ256.
	* config/i386/sse.md (avx2_eq<mode>3): Deleted.
	(sse2_eq<mode>3): Ditto.
	(sse4_1_eqv2di3): Ditto.
	(sse2_gt<mode>3): Rename to ..
	(*sse2_gt<mode>3): .. this.

2021-04-24  Iain Sandoe  <iain@sandoe.co.uk>

	Revert:
	2021-04-24  Iain Sandoe  <iain@sandoe.co.uk>

	PR target/100152
	* config/darwin.c (darwin_binds_local_p): Assume that any
	public symbol might be interposed for PIC code. Update function
	header comment to reflect current Darwin capability.

2021-04-24  Iain Sandoe  <iain@sandoe.co.uk>

	PR target/100152
	* config/darwin.c (darwin_binds_local_p): Assume that any
	public symbol might be interposed for PIC code. Update function
	header comment to reflect current Darwin capability.

2021-04-24  Richard Sandiford  <richard.sandiford@arm.com>

	* doc/sourcebuild.texi: Document no-opts and any-opts target
	selectors.

2021-04-23  YiFei Zhu  <zhuyifei1999@gmail.com>

	* config/bpf/bpf.h (ASM_OUTPUT_ALIGNED_BSS): Use .type and .lcomm.

2021-04-23  YiFei Zhu  <zhuyifei1999@gmail.com>

	* config/bpf/bpf.h (FUNCTION_BOUNDARY): Set to 64.

2021-04-23  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100041
	* config/i386/i386-options.c (ix86_option_override_internal):
	Error out when -m96bit-long-double is used with 64bit targets.
	* config/i386/i386.md (*pushxf_rounded): Remove pattern.

2021-04-23  Martin Liska  <mliska@suse.cz>

	* lto-wrapper.c: Remove FIXME about usage of
	hardware_concurrency. The function is not on par with
	what we have now.

2021-04-23  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100182
	* config/i386/sync.md (FILD_ATOMIC/FIST_ATOMIC FP load peephole2):
	Copy operand 3 to operand 4.  Use sse_reg_operand
	as operand 3 predicate.
	(FILD_ATOMIC/FIST_ATOMIC FP load peephole2 with mem blockage): Ditto.
	(LDX_ATOMIC/STX_ATOMIC FP load peephole2): Ditto.
	(LDX_ATOMIC/LDX_ATOMIC FP load peephole2 with mem blockage): Ditto.
	(FILD_ATOMIC/FIST_ATOMIC FP store peephole2):
	Copy operand 1 to operand 0.
	(FILD_ATOMIC/FIST_ATOMIC FP store peephole2 with mem blockage): Ditto.
	(LDX_ATOMIC/STX_ATOMIC FP store peephole2): Ditto.
	(LDX_ATOMIC/LDX_ATOMIC FP store peephole2 with mem blockage): Ditto.

2021-04-23  Alex Coplan  <alex.coplan@arm.com>

	PR rtl-optimization/100230
	* early-remat.c (early_remat::sort_candidates): Use delete[]
	instead of delete for array allocated with new[].

2021-04-23  Richard Biener  <rguenther@suse.de>

	* genmatch.c (lower_cond): Remove VEC_COND_EXPR special-casing.
	(capture_info::capture_info): Likewise.
	(capture_info::walk_match): Likewise.
	(expr::gen_transform): Likewise.
	(dt_simplify::gen_1): Likewise.
	* gimple-match-head.c (maybe_resimplify_conditional_op):
	Remove VEC_COND_EXPR special-casing.
	(gimple_simplify): Likewise.
	* gimple.c (gimple_could_trap_p_1): Adjust.
	* tree-ssa-pre.c (compute_avail): Allow VEC_COND_EXPR
	to participate in PRE.

2021-04-23  Richard Biener  <rguenther@suse.de>

	* cfganal.c (connect_infinite_loops_to_exit): First call
	add_noreturn_fake_exit_edges.
	* ipa-sra.c (process_scan_results): Do not call the now redundant
	add_noreturn_fake_exit_edges.
	* predict.c (tree_estimate_probability): Likewise.
	(rebuild_frequencies): Likewise.
	* store-motion.c (one_store_motion_pass): Likewise.

2021-04-23  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100222
	* predict.c (pass_profile::execute): Remove redundant call to
	mark_irreducible_loops.
	(report_predictor_hitrates): Likewise.

2021-04-23  Richard Biener  <rguenther@suse.de>

	* tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Avoid
	valid_gimple_rhs_p by instead gimplifying to one.

2021-04-23  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99971
	* tree-vect-data-refs.c (vect_slp_analyze_node_dependences):
	Always use TBAA for loads.

2021-04-23  liuhongt  <hongtao.liu@intel.com>

	PR target/100093
	* config/i386/i386-options.c (ix86_option_override_internal):
	Clear MASK_AVX256_SPLIT_UNALIGNED_LOAD/STORE in x_target_flags
	when X86_TUNE_AVX256_UNALIGNED_LOAD/STORE_OPTIMAL is enabled
	by target attribute.

2021-04-23  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/aix71.h (PREFERRED_DEBUGGING_TYPE): Change to
	DWARF2_DEBUG.
	* config/rs6000/aix72.h (PREFERRED_DEBUGGING_TYPE): Same.

2021-04-22  David Edelsohn  <dje.gcc@gmail.com>

	* config.gcc (powerpc-ibm-aix6.*): Remove.
	* config/rs6000/aix61.h: Delete.

2021-04-22  Martin Liska  <mliska@suse.cz>

	PR testsuite/100159
	PR testsuite/100192
	* builtins.c (expand_builtin): Fix typos and missing comments.
	* dwarf2out.c (gen_subprogram_die): Likewise.
	(gen_struct_or_union_type_die): Likewise.

2021-04-22  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/100119
	* config/i386/i386-expand.c (ix86_expand_convert_uns_sidf_sse):
	Remove the sign with FE_DOWNWARD, where x - x = -0.0.

2021-04-21  Iain Sandoe  <iain@sandoe.co.uk>

	* config/i386/darwin.h (TARGET_64BIT): Remove definition
	based on TARGET_ISA_64BIT.
	(TARGET_64BIT_P): Remove definition based on
	TARGET_ISA_64BIT_P().

2021-04-21  Martin Liska  <mliska@suse.cz>

	Revert:
	2021-04-21  Martin Liska  <mliska@suse.cz>

	* lto-wrapper.c (cpuset_popcount): Remove.
	(init_num_threads): Remove and use hardware_concurrency.

2021-04-21  Martin Liska  <mliska@suse.cz>

	PR jit/98615
	* main.c (main): Call toplev::finalize in CHECKING_P mode.
	* ipa-modref.c (ipa_modref_c_finalize): summaries are NULL
	when incremental LTO linking happens.

2021-04-21  Martin Liska  <mliska@suse.cz>

	* lto-wrapper.c (run_gcc): When -flto=jobserver is used, but the
	makeserver cannot be detected, then use -flto=N fallback.

2021-04-21  Richard Sandiford  <richard.sandiford@arm.com>

	* acinclude.m4 (gcc_AC_INITFINI_ARRAY): When cross-compiling,
	default to yes for aarch64-linux-gnu.
	* configure: Regenerate.

2021-04-21  Martin Liska  <mliska@suse.cz>

	* lto-wrapper.c (cpuset_popcount): Remove.
	(init_num_threads): Remove and use hardware_concurrency.

2021-04-21  Martin Liska  <mliska@suse.cz>

	* config/i386/i386.c: Remove superfluous || TARGET_MACHO
	which remains to be '(... || 0)' and clang complains about it.
	* dwarf2out.c (AT_vms_delta): Declare conditionally.
	(add_AT_vms_delta): Likewise.
	* tree.c (fld_simplified_type): Use rather more common pattern
	for disabling of something (#if 0).
	(get_tree_code_name): Likewise.
	(verify_type_variant): Likewise.

2021-04-21  Martin Liska  <mliska@suse.cz>

	* config/i386/i386-expand.c (decide_alignment): Use newly named
	macro TARGET_CPU_P.
	* config/i386/i386.c (ix86_decompose_address): Likewise.
	(ix86_address_cost): Likewise.
	(ix86_lea_outperforms): Likewise.
	(ix86_avoid_lea_for_addr): Likewise.
	(ix86_add_stmt_cost): Likewise.
	* config/i386/i386.h (TARGET_*): Remove.
	(TARGET_CPU_P): New macro.
	* config/i386/i386.md: Use newly named macro TARGET_CPU_P.
	* config/i386/x86-tune-sched-atom.c (do_reorder_for_imul): Likewise.
	(swap_top_of_ready_list): Likewise.
	(ix86_atom_sched_reorder): Likewise.
	* config/i386/x86-tune-sched-bd.c (ix86_bd_has_dispatch): Likewise.
	* config/i386/x86-tune-sched.c (ix86_adjust_cost): Likewise.

2021-04-21  Martin Liska  <mliska@suse.cz>

	* config/i386/i386-options.c (TARGET_EXPLICIT_NO_SAHF_P):
	Define.
	(SET_TARGET_NO_SAHF): Likewise.
	(TARGET_EXPLICIT_PREFETCH_SSE_P): Likewise.
	(SET_TARGET_PREFETCH_SSE): Likewise.
	(TARGET_EXPLICIT_NO_TUNE_P): Likewise.
	(SET_TARGET_NO_TUNE): Likewise.
	(TARGET_EXPLICIT_NO_80387_P): Likewise.
	(SET_TARGET_NO_80387): Likewise.
	(DEF_PTA): New.
	* config/i386/i386.h (TARGET_*): Remove.
	* opth-gen.awk: Generate new used macros.

2021-04-21  Martin Liska  <mliska@suse.cz>

	* config/i386/i386.h (PTA_*): Remove.
	(enum pta_flag): New.
	(DEF_PTA): Generate PTA_* values from i386-isa.def.
	* config/i386/i386-isa.def: New file.

2021-04-21  Alex Coplan  <alex.coplan@arm.com>

	PR target/99988
	* config/aarch64/aarch64-bti-insert.c (aarch64_bti_j_insn_p): New.
	(rest_of_insert_bti): Avoid inserting duplicate bti j insns for
	jump table targets.

2021-04-21  H.J. Lu  <hjl.tools@gmail.com>

	* config.gcc: Install mwaitintrin.h for i[34567]86-*-* and
	x86_64-*-* targets.
	* common/config/i386/i386-common.c (OPTION_MASK_ISA2_MWAIT_SET):
	New.
	(OPTION_MASK_ISA2_MWAIT_UNSET): Likewise.
	(ix86_handle_option): Handle -mmwait.
	* config/i386/i386-builtins.c (ix86_init_mmx_sse_builtins):
	Replace OPTION_MASK_ISA_SSE3 with OPTION_MASK_ISA2_MWAIT on
	__builtin_ia32_monitor and __builtin_ia32_mwait.
	* config/i386/i386-options.c (isa2_opts): Add -mmwait.
	(ix86_valid_target_attribute_inner_p): Likewise.
	(ix86_option_override_internal): Enable mwait/monitor
	instructions for -msse3.
	* config/i386/i386.h (TARGET_MWAIT): New.
	(TARGET_MWAIT_P): Likewise.
	* config/i386/i386.opt: Add -mmwait.
	* config/i386/mwaitintrin.h: New file.
	* config/i386/pmmintrin.h: Include <mwaitintrin.h>.
	* config/i386/sse.md (sse3_mwait): Replace TARGET_SSE3 with
	TARGET_MWAIT.
	(@sse3_monitor_<mode>): Likewise.
	* config/i386/x86gprintrin.h: Include <mwaitintrin.h>.
	* doc/extend.texi: Document mwait target attribute.
	* doc/invoke.texi: Document -mmwait.

2021-04-21  Martin Liska  <mliska@suse.cz>

	* config/i386/i386-options.c (DEF_ENUM): Remove it.
	* config/i386/i386-opts.h (DEF_ENUM): Likewise.
	* config/i386/stringop.def (DEF_ENUM): Likewise.

2021-04-21  Martin Liska  <mliska@suse.cz>

	* tree-cfg.c (gimple_verify_flow_info): Use qD instead
	of print_generic_expr.

2021-04-21  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/100148
	* cprop.c (constprop_register): Use next_nondebug_insn instead of
	NEXT_INSN.

2021-04-21  Martin Liska  <mliska@suse.cz>

	PR ipa/98815
	* cgraphunit.c (cgraph_node::analyze): Remove duplicate
	free_dominance_info calls.

2021-04-21  Richard Biener  <rguenther@suse.de>

	* gimple-fold.c (maybe_fold_reference): Remove is_lhs
	parameter (and assume it to be false).
	(fold_gimple_assign): Adjust, remove all callers of
	maybe_fold_reference calling it with is_lhs true.
	(gimple_fold_call): Likewise.
	(fold_stmt_1): Likewise.

2021-04-21  Richard Biener  <rguenther@suse.de>

	* fold-const.c (pedantic_non_lvalue_loc): Remove.
	(fold_binary_loc): Adjust.
	(fold_ternary_loc): Likewise.

2021-04-21  Richard Sandiford  <richard.sandiford@arm.com>

	PR middle-end/100130
	* varasm.c (get_block_for_decl): Make sure that any use of the
	retain attribute matches the section's retain flag.
	(switch_to_section): Check for retain mismatches even when
	changing sections, but do not warn if the given decl is the
	section's named.decl.
	(output_object_block): Pass the first decl in the block (if any)
	to switch_to_section.

2021-04-20  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/i386-c.c (ix86_target_macros_internal): Define
	__CRC32__ for -mcrc32.
	* config/i386/i386-options.c (ix86_option_override_internal):
	Enable crc32 instruction for -msse4.2.
	* config/i386/i386.md (sse4_2_crc32<mode>): Remove TARGET_SSE4_2
	check.
	(sse4_2_crc32di): Likewise.
	* config/i386/ia32intrin.h: Use crc32 target option for CRC32
	intrinsics.

2021-04-20  Segher Boessenkool  <segher@kernel.crashing.org>

	PR target/100108
	* config/rs6000/rs6000.c (rs6000_machine_from_flags): Do not consider
	OPTION_MASK_ISEL.

2021-04-20  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Fix typo.
	* params.opt: Likewise.

2021-04-20  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Document new param.

2021-04-19  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/100081
	* gimple-range-cache.h (ranger_cache): Inherit from gori_compute
	rather than gori_compute_cache.
	* gimple-range-gori.cc (is_gimple_logical_p): Move to top of file.
	(range_def_chain::m_logical_depth): New member.
	(range_def_chain::range_def_chain): Initialize m_logical_depth.
	(range_def_chain::get_def_chain): Don't build defchains through more
	than LOGICAL_LIMIT logical expressions.
	* params.opt (param_ranger_logical_depth): New.

2021-04-19  Richard Earnshaw  <rearnsha@arm.com>

	PR target/100067
	* config/arm/arm.c (arm_configure_build_target): Do not strip
	extended FPU/SIMD feature bits from the target ISA when -mfpu
	is specified (partial revert of r11-8168).

2021-04-19  Thomas Schwinge  <thomas@codesourcery.com>

	* params.opt (-param=openacc-kernels=): Add.
	* omp-oacc-kernels-decompose.cc
	(pass_omp_oacc_kernels_decompose::gate): Use it.
	* doc/invoke.texi (-fopenacc-kernels=@var{mode}): Move...
	(--param): ... here, 'openacc-kernels'.

2021-04-19  Martin Liska  <mliska@suse.cz>

	PR c/100143
	* gengtype.c (finish_root_table): Align function arguments
	in between declaration and definition.

2021-04-19  Eric Botcazou  <ebotcazou@adacore.com>

	* config/i386/winnt.c (i386_pe_seh_cold_init): Properly deal with
	frames larger than the SEH maximum frame size.

2021-04-18  Segher Boessenkool  <segher@kernel.crashing.org>

	PR rtl-optimization/99927
	* combine.c (distribute_notes) [REG_UNUSED]: If the register already
	is dead, just drop it.

2021-04-17  Iain Buclaw  <ibuclaw@gdcproject.org>

	PR d/99914
	* config/i386/winnt-d.c (TARGET_D_TEMPLATES_ALWAYS_COMDAT): Define.
	* doc/tm.texi: Regenerate.
	* doc/tm.texi.in (D language and ABI): Add @hook for
	TARGET_D_TEMPLATES_ALWAYS_COMDAT.

2021-04-17  Iain Buclaw  <ibuclaw@gdcproject.org>

	* config/darwin-d.c (darwin_d_handle_target_object_format): New
	function.
	(darwin_d_register_target_info): New function.
	(TARGET_D_REGISTER_OS_TARGET_INFO): Define.
	* config/dragonfly-d.c (dragonfly_d_handle_target_object_format): New
	function.
	(dragonfly_d_register_target_info): New function.
	(TARGET_D_REGISTER_OS_TARGET_INFO): Define.
	* config/freebsd-d.c (freebsd_d_handle_target_object_format): New
	function.
	(freebsd_d_register_target_info): New function.
	(TARGET_D_REGISTER_OS_TARGET_INFO): Define.
	* config/glibc-d.c (glibc_d_handle_target_object_format): New
	function.
	(glibc_d_register_target_info): New function.
	(TARGET_D_REGISTER_OS_TARGET_INFO): Define.
	* config/i386/i386-d.c (ix86_d_handle_target_object_format): New
	function.
	(ix86_d_register_target_info): Add ix86_d_handle_target_object_format
	as handler for objectFormat key.
	* config/i386/winnt-d.c (winnt_d_handle_target_object_format): New
	function.
	(winnt_d_register_target_info): New function.
	(TARGET_D_REGISTER_OS_TARGET_INFO): Define.
	* config/netbsd-d.c (netbsd_d_handle_target_object_format): New
	function.
	(netbsd_d_register_target_info): New function.
	(TARGET_D_REGISTER_OS_TARGET_INFO): Define.
	* config/openbsd-d.c (openbsd_d_handle_target_object_format): New
	function.
	(openbsd_d_register_target_info): New function.
	(TARGET_D_REGISTER_OS_TARGET_INFO): Define.
	* config/pa/pa-d.c (pa_d_handle_target_object_format): New function.
	(pa_d_register_target_info): Add pa_d_handle_target_object_format as
	handler for objectFormat key.
	* config/rs6000/rs6000-d.c (rs6000_d_handle_target_object_format): New
	function.
	(rs6000_d_register_target_info): Add
	rs6000_d_handle_target_object_format as handler for objectFormat key.
	* config/sol2-d.c (solaris_d_handle_target_object_format): New
	function.
	(solaris_d_register_target_info): New function.
	(TARGET_D_REGISTER_OS_TARGET_INFO): Define.

2021-04-16  Jakub Jelinek  <jakub@redhat.com>

	PR target/91710
	* config/aarch64/aarch64.c (aarch64_function_arg_alignment): Change
	abi_break argument from bool * to unsigned *, store there the pre-GCC 9
	alignment.
	(aarch64_layout_arg, aarch64_gimplify_va_arg_expr): Adjust callers.
	(aarch64_function_arg_regno_p): Likewise.  Only emit -Wpsabi note if
	the old and new alignment after applying MIN/MAX to it is different.

2021-04-16  Tamar Christina  <tamar.christina@arm.com>

	PR target/100048
	* config/aarch64/aarch64-sve.md (@aarch64_sve_trn1_conv<mode>): New.
	* config/aarch64/aarch64.c (aarch64_expand_sve_const_pred_trn): Use new
	TRN optab.
	* config/aarch64/iterators.md (UNSPEC_TRN1_CONV): New.

2021-04-16  Bill Schmidt  <wschmidt@linux.ibm.com>

	* doc/extend.texi (PowerPC AltiVec/VSX Built-in Functions): Revise
	this section and its subsections.

2021-04-16  Jakub Jelinek  <jakub@redhat.com>

	PR target/100075
	* config/aarch64/aarch64.md (*neg_asr_si2_extr, *extrsi5_insn_di): New
	define_insn patterns.

2021-04-16  Richard Sandiford  <richard.sandiford@arm.com>

	PR rtl-optimization/98689
	* reg-notes.def (UNTYPED_CALL): New note.
	* combine.c (distribute_notes): Handle it.
	* emit-rtl.c (try_split): Likewise.
	* rtlanal.c (rtx_properties::try_to_add_insn): Likewise.  Assume
	that calls with the note implicitly set all return value registers.
	* builtins.c (expand_builtin_apply): Add a REG_UNTYPED_CALL
	to untyped_calls.

2021-04-16  Richard Sandiford  <richard.sandiford@arm.com>

	PR rtl-optimization/99596
	* rtlanal.c (rtx_properties::try_to_add_insn): Don't add global
	register accesses for const calls.  Assume that pure functions
	can only read from global registers.  Ignore cases in which
	the stack pointer has been marked global.

2021-04-16  Jakub Jelinek  <jakub@redhat.com>

	PR target/99767
	* tree-vect-loop.c (vect_transform_loop): Don't remove just
	dead scalar .MASK_LOAD calls, but also dead .COND_* calls - replace
	them by their last argument.

2021-04-15  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Other params don't use it, remove it.

2021-04-15  Richard Biener  <rguenther@suse.de>

	* gimple-builder.h: Add deprecation note.

2021-04-15  Richard Sandiford  <richard.sandiford@arm.com>

	PR c++/98852
	* attribs.h (restrict_type_identity_attributes_to): Declare.
	* attribs.c (restrict_type_identity_attributes_to): New function.

2021-04-15  Richard Sandiford  <richard.sandiford@arm.com>

	PR c/98852
	* attribs.h (affects_type_identity_attributes): Declare.
	* attribs.c (remove_attributes_matching): New function.
	(affects_type_identity_attributes): Likewise.

2021-04-15  Jakub Jelinek  <jakub@redhat.com>

	PR target/100056
	* config/aarch64/aarch64.md (*<LOGICAL:optab>_<SHIFT:optab><mode>3):
	Add combine splitters for *<LOGICAL:optab>_ashl<mode>3 with
	ZERO_EXTEND, SIGN_EXTEND or AND.

2021-04-14  Richard Sandiford  <richard.sandiford@arm.com>

	PR rtl-optimization/99929
	* rtl.h (same_vector_encodings_p): New function.
	* cse.c (exp_equiv_p): Check that CONST_VECTORs have the same encoding.
	* cselib.c (rtx_equal_for_cselib_1): Likewise.
	* jump.c (rtx_renumbered_equal_p): Likewise.
	* lra-constraints.c (operands_match_p): Likewise.
	* reload.c (operands_match_p): Likewise.
	* rtl.c (rtx_equal_p_cb, rtx_equal_p): Likewise.

2021-04-14  Richard Sandiford  <richard.sandiford@arm.com>

	* print-rtl.c (rtx_writer::print_rtx_operand_codes_E_and_V): Print
	more information about variable-length CONST_VECTORs.

2021-04-14  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/100066
	* lra-constraints.c (split_reg): Check paradoxical_subreg_p for
	ordered modes when choosing splitting mode for hard reg.

2021-04-14  Richard Sandiford  <richard.sandiford@arm.com>

	PR target/99246
	* config/aarch64/aarch64.c (aarch64_expand_sve_const_vector_sel):
	New function.
	(aarch64_expand_sve_const_vector): Use it for nelts_per_pattern==2.

2021-04-14  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/s390-builtins.def (O_M5, O_M12, ...): Add new macros
	for mask operand types.
	(s390_vec_permi_s64, s390_vec_permi_b64, s390_vec_permi_u64)
	(s390_vec_permi_dbl, s390_vpdi): Use the M5 type for the immediate
	operand.
	(s390_vec_msum_u128, s390_vmslg): Use the M12 type for the
	immediate operand.
	* config/s390/s390.c (s390_const_operand_ok): Check the new
	operand types and generate a list of valid values.

2021-04-14  Iain Buclaw  <ibuclaw@gdcproject.org>

	* doc/tm.texi: Regenerate.
	* doc/tm.texi.in (D language and ABI): Add @hook for
	TARGET_D_REGISTER_OS_TARGET_INFO.

2021-04-14  Iain Buclaw  <ibuclaw@gdcproject.org>

	* config/aarch64/aarch64-d.c (aarch64_d_handle_target_float_abi): New
	function.
	(aarch64_d_register_target_info): New function.
	* config/aarch64/aarch64-protos.h (aarch64_d_register_target_info):
	Declare.
	* config/aarch64/aarch64.h (TARGET_D_REGISTER_CPU_TARGET_INFO):
	Define.
	* config/arm/arm-d.c (arm_d_handle_target_float_abi): New function.
	(arm_d_register_target_info): New function.
	* config/arm/arm-protos.h (arm_d_register_target_info): Declare.
	* config/arm/arm.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
	* config/i386/i386-d.c (ix86_d_handle_target_float_abi): New function.
	(ix86_d_register_target_info): New function.
	* config/i386/i386-protos.h (ix86_d_register_target_info): Declare.
	* config/i386/i386.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
	* config/mips/mips-d.c (mips_d_handle_target_float_abi): New function.
	(mips_d_register_target_info): New function.
	* config/mips/mips-protos.h (mips_d_register_target_info): Declare.
	* config/mips/mips.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
	* config/pa/pa-d.c (pa_d_handle_target_float_abi): New function.
	(pa_d_register_target_info): New function.
	* config/pa/pa-protos.h (pa_d_register_target_info): Declare.
	* config/pa/pa.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
	* config/riscv/riscv-d.c (riscv_d_handle_target_float_abi): New
	function.
	(riscv_d_register_target_info): New function.
	* config/riscv/riscv-protos.h (riscv_d_register_target_info): Declare.
	* config/riscv/riscv.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
	* config/rs6000/rs6000-d.c (rs6000_d_handle_target_float_abi): New
	function.
	(rs6000_d_register_target_info): New function.
	* config/rs6000/rs6000-protos.h (rs6000_d_register_target_info):
	Declare.
	* config/rs6000/rs6000.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
	* config/s390/s390-d.c (s390_d_handle_target_float_abi): New function.
	(s390_d_register_target_info): New function.
	* config/s390/s390-protos.h (s390_d_register_target_info): Declare.
	* config/s390/s390.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
	* config/sparc/sparc-d.c (sparc_d_handle_target_float_abi): New
	function.
	(sparc_d_register_target_info): New function.
	* config/sparc/sparc-protos.h (sparc_d_register_target_info): Declare.
	* config/sparc/sparc.h (TARGET_D_REGISTER_CPU_TARGET_INFO): Define.
	* doc/tm.texi: Regenerate.
	* doc/tm.texi.in (D language and ABI): Add @hook for
	TARGET_D_REGISTER_CPU_TARGET_INFO.

2021-04-14  Iain Buclaw  <ibuclaw@gdcproject.org>

	* config/i386/i386-d.c (ix86_d_has_stdcall_convention): New function.
	* config/i386/i386-protos.h (ix86_d_has_stdcall_convention): Declare.
	* config/i386/i386.h (TARGET_D_HAS_STDCALL_CONVENTION): Define.
	* doc/tm.texi: Regenerate.
	* doc/tm.texi.in (D language and ABI): Add @hook for
	TARGET_D_HAS_STDCALL_CONVENTION.

2021-04-14  Richard Biener  <rguenther@suse.de>

	* tree-cfg.c (verify_gimple_assign_ternary): Verify that
	VEC_COND_EXPRs have a gimple_val condition.
	* tree-ssa-propagate.c (valid_gimple_rhs_p): VEC_COND_EXPR
	can no longer have a GENERIC condition.

2021-04-14  Richard Earnshaw  <rearnsha@arm.com>

	PR target/100067
	* config/arm/arm.c (arm_configure_build_target): Strip isa_all_fpbits
	from the isa_delta when -mfpu has been used.
	(arm_options_perform_arch_sanity_checks): It's the architecture that
	lacks an FPU not the processor.

2021-04-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/100053
	* tree-ssa-sccvn.c (vn_nary_op_get_predicated_value): Do
	not use optimistic dominance queries for backedges to validate
	predicated values.
	(dominated_by_p_w_unex): Add parameter to ignore executable
	state on backedges.
	(rpo_elim::eliminate_avail): Adjust.

2021-04-13  Jakub Jelinek  <jakub@redhat.com>

	PR target/100028
	* config/aarch64/aarch64.md (*aarch64_bfxil<mode>_extr,
	*aarch64_bfxilsi_extrdi): New define_insn patterns.

2021-04-13  Jakub Jelinek  <jakub@redhat.com>

	PR target/99648
	* simplify-rtx.c (simplify_immed_subreg): For MODE_COMPOSITE_P
	outermode, return NULL if the result doesn't encode back to the
	original byte sequence.
	(simplify_gen_subreg): Don't create SUBREGs from constants to
	MODE_COMPOSITE_P outermode.

2021-04-12  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/99905
	* combine.c (expand_compound_operation): If pos + len > modewidth,
	perform the right shift by pos in inner_mode and then convert to mode,
	instead of trying to simplify a shift of rtx with inner_mode by pos
	as if it was a shift in mode.

2021-04-12  Jakub Jelinek  <jakub@redhat.com>

	PR debug/99830
	* combine.c (simplify_and_const_int_1): Don't optimize varop
	away if it has side-effects.

2021-04-12  Martin Liska  <mliska@suse.cz>

	* doc/extend.texi: Escape @smallexample content.

2021-04-12  Stefan Schulze Frielinghaus  <stefansf@linux.ibm.com>

	* config/s390/s390.md ("*movdi_31", "*movdi_64"): Add
	  alternative in order to load a DFP zero.

2021-04-12  Martin Liska  <mliska@suse.cz>

	* doc/extend.texi: Be more precise in documentation
	of symver attribute.

2021-04-12  Martin Liska  <mliska@suse.cz>

	PR sanitizer/99877
	* gimplify.c (gimplify_expr): Right now, we unpoison all
	variables before a goto <dest>. We should not do it if we are
	in a omp context.

2021-04-12  Cui,Lili  <lili.cui@intel.com>

	* common/config/i386/cpuinfo.h (get_intel_cpu): Handle
	rocketlake.
	* common/config/i386/i386-common.c (processor_names): Add
	rocketlake.
	(processor_alias_table): Add rocketlake.
	* common/config/i386/i386-cpuinfo.h (processor_subtypes): Add
	INTEL_COREI7_ROCKETLAKE.
	* config.gcc: Add -march=rocketlake.
	* config/i386/i386-c.c (ix86_target_macros_internal): Handle
	rocketlake.
	* config/i386/i386-options.c (m_ROCKETLAKE)  : Define.
	(processor_cost_table): Add rocketlake cost.
	* config/i386/i386.h (ix86_size_cost) : Define
	TARGET_ROCKETLAKE.
	(processor_type) : Add PROCESSOR_ROCKETLAKE.
	(PTA_ROCKETLAKE): Ditto.
	* doc/extend.texi: Add rocketlake.
	* doc/invoke.texi: Add rocketlake.

2021-04-12  Cui,Lili  <lili.cui@intel.com>

	* config/i386/i386.h (PTA_ALDERLAKE): Change alderlake ISA list.
	* config/i386/i386-options.c (m_CORE_AVX2): Add m_ALDERLAKE.
	* common/config/i386/cpuinfo.h (get_intel_cpu): Add AlderLake model.
	* doc/invoke.texi: Change alderlake ISA list.

2021-04-11  Hafiz Abid Qadeer  <abidh@codesourcery.com>

	PR middle-end/98088
	* omp-expand.c (expand_oacc_collapse_init): Update condition in
	a gcc_assert.

2021-04-10  H.J. Lu  <hjl.tools@gmail.com>

	PR target/99744
	* config/i386/serializeintrin.h (_serialize): Defined as macro.

2021-04-10  Jakub Jelinek  <jakub@redhat.com>

	PR lto/99849
	* expr.c (expand_expr_addr_expr_1): Test is_global_var rather than
	just TREE_STATIC on COMPOUND_LITERAL_EXPR_DECLs.

2021-04-10  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/99989
	* gimple-ssa-warn-alloca.c
	(alloca_type_and_limit::alloca_type_and_limit): Initialize limit to
	0 with integer precision unconditionally.

2021-04-10  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/98601
	* rtlanal.c (rtx_addr_can_trap_p_1): Allow in assert unknown size
	not just for BLKmode, but also for VOIDmode.  For STRICT_ALIGNMENT
	unaligned_mems handle VOIDmode like BLKmode.

2021-04-10  Jan Hubicka  <hubicka@ucw.cz>

	PR lto/99857
	* tree.c (free_lang_data_in_decl): Do not release body of
	declare_variant_alt.

2021-04-09  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (aarch64_option_restore): If the
	architecture was specified explicitly and the tuning wasn't,
	tune for the architecture rather than the configured default CPU.

2021-04-09  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.md (tlsdesc_small_sve_<mode>): Use X30
	as the temporary register.

2021-04-09  Martin Liska  <mliska@suse.cz>

	* doc/extend.texi: Move non-target attributes on the top level.

2021-04-09  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Document minimum and maximum value of the
	argument for both supported compression algorithms.

2021-04-08  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/rs6000.c (rs6000_xcoff_select_section): Select
	TLS BSS before TLS data.
	* config/rs6000/xcoff.h (ASM_OUTPUT_TLS_COMMON): Use .comm.

2021-04-08  Richard Sandiford  <richard.sandiford@arm.com>

	* doc/sourcebuild.texi (stdint_types_mbig_endian): Document.

2021-04-08  Richard Sandiford  <richard.sandiford@arm.com>

	* match.pd: Extend vec_cond folds to handle shifts.

2021-04-08  Maciej W. Rozycki  <macro@orcam.me.uk>

	* config/vax/vax.md: Fix comment for `*bit<mode>' pattern's
	peephole.

2021-04-08  Alex Coplan  <alex.coplan@arm.com>

	PR target/99647
	* config/arm/iterators.md (MVE_vecs): New.
	(V_elem): Also handle V2DF.
	* config/arm/mve.md (*mve_mov<mode>): Rename to ...
	(*mve_vdup<mode>): ... this. Remove second alternative since
	vec_duplicate of const_int is not canonical RTL, and we don't
	want to match symbol_refs.
	(*mve_vec_duplicate<mode>): Delete (pattern is redundant).

2021-04-08  Xionghu Luo  <luoxhu@linux.ibm.com>

	* fold-const.c (fold_single_bit_test): Fix typo.
	* print-rtl.c (print_rtx_insn_vec): Call print_rtl_single
	instead.

2021-04-07  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/97513
	* tree-vect-slp.c (vect_add_slp_permutation): New function,
	split out from...
	(vectorizable_slp_permutation): ...here.  Detect cases in which
	all VEC_PERM_EXPRs are guaranteed to have the same stepped
	permute vector and only generate one permute vector for that case.
	Extend that case to handle variable-length vectors.

2021-04-07  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/99873
	* tree-vect-slp.c (vect_slp_prefer_store_lanes_p): New function.
	(vect_build_slp_instance): Don't split store groups that could
	use IFN_STORE_LANES.

2021-04-07  Jakub Jelinek  <jakub@redhat.com>

	PR target/99872
	* varasm.c (output_constant_pool_contents): Don't strip name encoding
	from XSTR (desc->sym, 0) or from label before passing those to
	ASM_OUTPUT_DEF.

2021-04-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99954
	* tree-loop-distribution.c: Include tree-affine.h.
	(generate_memcpy_builtin): Try using tree-affine to prove
	non-overlap.
	(loop_distribution::classify_builtin_ldst): Always classify
	as PKIND_MEMMOVE.

2021-04-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99947
	* tree-vect-loop.c (vectorizable_induction): Pre-allocate
	steps vector to avoid pushing elements from the reallocated
	vector.

2021-04-07  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.h (print_vn_reference_ops): Declare.
	* tree-ssa-pre.c (print_pre_expr): Factor out VN reference operand
	printing...
	* tree-ssa-sccvn.c (print_vn_reference_ops): ... into this new
	function.
	(debug_vn_reference_ops): New.

2021-04-07  Bin Cheng  <bin.cheng@linux.alibaba.com>

	PR tree-optimization/98736
	* tree-loop-distribution.c
	* (loop_distribution::bb_top_order_init):
	Compute RPO with programing order preserved by calling function
	rev_post_order_and_mark_dfs_back_seme.

2021-04-06  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/99781
	* lra-constraints.c (split_reg): Don't check paradoxical_subreg_p.
	* lra-lives.c (clear_sparseset_regnos, regnos_in_sparseset_p): New
	functions.
	(process_bb_lives): Don't update biggest mode of hard reg for
	implicit in multi-register group.  Use the new functions for
	updating dead_set and unused_set by register notes.

2021-04-06  Xianmiao Qu  <xianmiao_qu@c-sky.com>

	* config/csky/csky_pipeline_ck802.md : Use insn reservation name
	instead of *.

2021-04-06  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/x86-tune-costs.h (skylake_memcpy): Updated.
	(skylake_memset): Likewise.
	(skylake_cost): Change CLEAR_RATIO to 17.
	* config/i386/x86-tune.def (X86_TUNE_PREFER_KNOWN_REP_MOVSB_STOSB):
	Replace m_CANNONLAKE, m_ICELAKE_CLIENT, m_ICELAKE_SERVER,
	m_TIGERLAKE and m_SAPPHIRERAPIDS with m_SKYLAKE and m_CORE_AVX512.

2021-04-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99880
	* tree-vect-loop.c (maybe_set_vectorized_backedge_value): Only
	set vectorized defs of relevant PHIs.

2021-04-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99924
	* tree-vect-slp.c (vect_bb_partition_graph_r): Do not mark
	nodes w/o scalar stmts as visited.

2021-04-06  Alex Coplan  <alex.coplan@arm.com>

	PR target/99748
	* config/arm/arm.c (arm_libcall_uses_aapcs_base): Also use base
	PCS for [su]fix_optab.

2021-04-03  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.c (machopic_legitimize_pic_address): Check
	that the current pic register is one of the hard reg set
	before setting liveness.

2021-04-03  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.c (machopic_legitimize_pic_address): Fix
	whitespace, remove unused code.

2021-04-03  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/99882
	* gimple-ssa-store-merging.c (bswap_view_convert): Handle val with
	pointer type.

2021-04-03  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/99863
	* dse.c (replace_read): Drop regs_live argument.  Instead of
	regs_live, use store_insn->fixed_regs_live if non-NULL,
	otherwise punt if insns sequence clobbers or sets any hard
	registers.

2021-04-03  Jakub Jelinek  <jakub@redhat.com>

	PR testsuite/98125
	* targhooks.h (default_print_patchable_function_entry_1): Declare.
	* targhooks.c (default_print_patchable_function_entry_1): New function,
	copied from default_print_patchable_function_entry with an added flags
	argument.
	(default_print_patchable_function_entry): Rewritten into a small
	wrapper around default_print_patchable_function_entry_1.
	* config/rs6000/rs6000.c (TARGET_ASM_PRINT_PATCHABLE_FUNCTION_ENTRY):
	Redefine.
	(rs6000_print_patchable_function_entry): New function.

2021-04-02  Eric Botcazou  <ebotcazou@adacore.com>

	* doc/invoke.texi (fdelete-dead-exceptions): Minor tweak.

2021-04-01  Jason Merrill  <jason@redhat.com>

	PR c++/98481
	* common.opt: Document v15 and v16.

2021-04-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99863
	* gimplify.c (gimplify_init_constructor): Recompute vector
	constructor flags.

2021-04-01  Jakub Jelinek  <jakub@redhat.com>

	* doc/extend.texi (symver attribute): Fix up syntax errors
	in the examples.

2021-04-01  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96573
	* gimple-ssa-store-merging.c (init_symbolic_number): Handle
	also pointer types.

2021-04-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99856
	* tree-vect-patterns.c (vect_recog_over_widening_pattern): Promote
	precision to vector element precision.

2021-04-01  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/97009
	* tree-sra.c (access_or_its_child_written): New function.
	(propagate_subaccesses_from_rhs): Use it instead of a simple grp_write
	test.

2021-03-31  Jan Hubicka  <hubicka@ucw.cz>

	PR ipa/98265
	* cif-code.def (USES_COMDAT_LOCAL): Make CIF_FINAL_NORMAL.

2021-03-31  Pat Haugen  <pthaugen@linux.ibm.com>

	PR target/99133
	* config/rs6000/altivec.md (xxspltiw_v4si, xxspltiw_v4sf_inst,
	xxspltidp_v2df_inst, xxsplti32dx_v4si_inst, xxsplti32dx_v4sf_inst,
	xxblend_<mode>, xxpermx_inst, xxeval): Mark prefixed.
	* config/rs6000/mma.md (mma_<vvi4i4i8>, mma_<avvi4i4i8>,
	mma_<vvi4i4i2>, mma_<avvi4i4i2>, mma_<vvi4i4>, mma_<avvi4i4>,
	mma_<pvi4i2>, mma_<apvi4i2>, mma_<vvi4i4i4>, mma_<avvi4i4i4>):
	Likewise.
	* config/rs6000/rs6000.c (rs6000_final_prescan_insn): Adjust test.
	* config/rs6000/rs6000.md (define_attr "maybe_prefixed"): New.
	(define_attr "prefixed"): Update initializer.

2021-03-31  Jakub Jelinek  <jakub@redhat.com>

	PR debug/99490
	* dwarf2out.c (debug_ranges_dwo_section): New variable.
	(DW_RANGES_IDX_SKELETON): Define.
	(struct dw_ranges): Add begin_entry and end_entry members.
	(DEBUG_DWO_RNGLISTS_SECTION): Define.
	(add_ranges_num): Adjust r initializer for addition of *_entry
	members.
	(add_ranges_by_labels): For -gsplit-dwarf and force_direct,
	set idx to DW_RANGES_IDX_SKELETON.
	(use_distinct_base_address_for_range): New function.
	(index_rnglists): Don't set r->idx if it is equal to
	DW_RANGES_IDX_SKELETON.  Initialize r->begin_entry and
	r->end_entry for -gsplit-dwarf if those will be needed by
	output_rnglists.
	(output_rnglists): Add DWO argument.  If true, switch to
	debug_ranges_dwo_section rather than debug_ranges_section.
	Adjust l1/l2 label indexes.  Only output the offset table when
	dwo is true and don't include in there the skeleton range
	entry if present.  For -gsplit-dwarf, skip ranges that belong
	to the other rnglists section.  Change return type from void
	to bool and return true if there are any range entries for
	the other section.  For dwarf_split_debug_info use
	DW_RLE_startx_endx, DW_RLE_startx_length and DW_RLE_base_addressx
	entries instead of DW_RLE_start_end, DW_RLE_start_length and
	DW_RLE_base_address.  Use use_distinct_base_address_for_range.
	(init_sections_and_labels): Initialize debug_ranges_dwo_section
	if -gsplit-dwarf and DWARF >= 5.  Adjust ranges_section_label
	and range_base_label indexes.
	(dwarf2out_finish): Call index_rnglists earlier before finalizing
	.debug_addr.  Never emit DW_AT_rnglists_base attribute.  For
	-gsplit-dwarf and DWARF >= 5 call output_rnglists up to twice
	with different dwo arguments.
	(dwarf2out_c_finalize): Clear debug_ranges_dwo_section.

2021-03-31  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/98268
	* gimple-fold.c (maybe_canonicalize_mem_ref_addr): Call
	recompute_tree_invariant_for_addr_expr after successfully
	folding a TARGET_MEM_REF that occurs inside an ADDR_EXPR.

2021-03-31  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/99726
	* tree-data-ref.c (create_intersect_range_checks_index): Bail
	out if there is more than one access function SCEV for the loop
	being versioned.

2021-03-31  Richard Sandiford  <richard.sandiford@arm.com>

	PR rtl-optimization/97141
	PR rtl-optimization/98726
	* emit-rtl.c (valid_for_const_vector_p): Return true for
	CONST_POLY_INT_P.
	* rtx-vector-builder.h (rtx_vector_builder::step): Return a
	poly_wide_int instead of a wide_int.
	(rtx_vector_builder::apply_set): Take a poly_wide_int instead
	of a wide_int.
	* rtx-vector-builder.c (rtx_vector_builder::apply_set): Likewise.
	* config/aarch64/aarch64.c (aarch64_legitimate_constant_p): Return
	false for CONST_VECTORs that cannot be forced to memory.
	* config/aarch64/aarch64-simd.md (mov<mode>): If a CONST_VECTOR
	is too complex to force to memory, build it up from individual
	elements instead.

2021-03-31  Jan Hubicka  <jh@suse.cz>

	PR lto/99447
	* cgraph.c (cgraph_node::release_body): Fix overactive check.

2021-03-31  Christophe Lyon  <christophe.lyon@linaro.org>

	PR target/99786
	* config/arm/vec-common.md (mul<mode>3): Disable on iwMMXT, expect
	for V4HI and V2SI.

2021-03-31  H.J. Lu  <hjl.tools@gmail.com>

	* config/i386/i386-expand.c (expand_set_or_cpymem_via_rep):
	For TARGET_PREFER_KNOWN_REP_MOVSB_STOSB, don't convert QImode
	to SImode.
	(decide_alg): For TARGET_PREFER_KNOWN_REP_MOVSB_STOSB, use
	"rep movsb/stosb" only for known sizes.
	* config/i386/i386-options.c (processor_cost_table): Use Ice
	Lake cost for Cannon Lake, Ice Lake, Tiger Lake, Sapphire
	Rapids and Alder Lake.
	* config/i386/i386.h (TARGET_PREFER_KNOWN_REP_MOVSB_STOSB): New.
	* config/i386/x86-tune-costs.h (icelake_memcpy): New.
	(icelake_memset): Likewise.
	(icelake_cost): Likewise.
	* config/i386/x86-tune.def (X86_TUNE_PREFER_KNOWN_REP_MOVSB_STOSB):
	New.

2021-03-31  Richard Sandiford  <richard.sandiford@arm.com>

	PR target/98119
	* config/aarch64/aarch64.c
	(aarch64_vectorize_preferred_vector_alignment): Query the size
	of the provided SVE vector; do not assume that all SVE vectors
	have the same size.

2021-03-31  Jan Hubicka  <jh@suse.cz>

	PR lto/99447
	* cgraph.c (cgraph_node::release_body): Remove all callers and
	references.
	* cgraphclones.c (cgraph_node::materialize_clone): Do not do it here.
	* cgraphunit.c (cgraph_node::expand): And here.

2021-03-31  Martin Liska  <mliska@suse.cz>

	* ipa-modref.c (analyze_ssa_name_flags): Fix coding style
	and one negated condition.

2021-03-31  Jakub Jelinek  <jakub@redhat.com>
	    Richard Sandiford  <richard.sandiford@arm.com>

	PR target/99813
	* config/aarch64/aarch64.md (*add<mode>3_poly_1): Swap Uai and Uav
	constraints on operands[2] and similarly 0 and rk constraints
	on operands[1] corresponding to that.

2021-03-31  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/98860
	* configure.ac (HAVE_LD_BROKEN_PE_DWARF5): New AC_DEFINE if PECOFF
	linker doesn't support DWARF sections new in DWARF5.
	* config/i386/i386-options.c (ix86_option_override_internal): Default
	to dwarf_version 4 if HAVE_LD_BROKEN_PE_DWARF5 for TARGET_PECOFF
	targets.
	* config.in: Regenerated.
	* configure: Regenerated.

2021-03-30  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	PR target/99820
	* config/aarch64/aarch64.c (aarch64_analyze_loop_vinfo): Check for
	available issue_info before using it.

2021-03-30  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	PR target/99822
	* config/aarch64/aarch64.md (sub<mode>3_compare1_imm): Do not allow zero
	in operand 1.

2021-03-30  Xionghu Luo  <luoxhu@linux.ibm.com>

	PR target/99718
	* config/rs6000/altivec.md (altivec_lvsl_reg): Change to ...
	(altivec_lvsl_reg_<mode>): ... this.
	(altivec_lvsr_reg): Change to ...
	(altivec_lvsr_reg_<mode>): ... this.
	* config/rs6000/predicates.md (vec_set_index_operand): New.
	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
	Enable 32bit variable vec_insert for all TARGET_VSX.
	* config/rs6000/rs6000.c (rs6000_expand_vector_set_var_p9):
	Enable 32bit variable vec_insert for p9 and above.
	(rs6000_expand_vector_set_var_p8): Rename to ...
	(rs6000_expand_vector_set_var_p7): ... this.
	(rs6000_expand_vector_set): Use TARGET_VSX and adjust assert
	position.
	* config/rs6000/vector.md (vec_set<mode>): Use vec_set_index_operand.
	* config/rs6000/vsx.md (xl_len_r): Use gen_altivec_lvsl_reg_di and
	gen_altivec_lvsr_reg_di.

2021-03-30  H.J. Lu  <hjl.tools@gmail.com>

	PR target/99744
	* config/i386/ia32intrin.h (__rdtsc): Defined as macro.
	(__rdtscp): Likewise.

2021-03-30  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/99825
	* tree-vect-slp-patterns.c (vect_check_evenodd_blend):
	Reject non-mult 2 lanes.

2021-03-30  Richard Earnshaw  <rearnsha@arm.com>

	PR target/99773
	* config/arm/arm.c (arm_file_start): Fix emission of
	Tag_ABI_VFP_args attribute.

2021-03-30  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99824
	* stor-layout.c (set_min_and_max_values_for_integral_type):
	Assert the precision is within the bounds of
	WIDE_INT_MAX_PRECISION.
	* tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Use
	the outermost component ref only to lower the access size
	and initialize that from the access type.

2021-03-30  Richard Sandiford  <richard.sandiford@arm.com>

	PR target/98136
	* config/aarch64/aarch64.md (mov<mode>): Pass multi-instruction
	CONST_INTs to aarch64_expand_mov_immediate when called after RA.

2021-03-30  Mihailo Stojanovic  <mihailo.stojanovic@typhoon-hil.com>

	* config/aarch64/aarch64.md
	(<optab>_trunc<fcvt_target><GPI:mode>2): Set the "arch"
	attribute to disambiguate between SIMD and FP variants of the
	instruction.

2021-03-29  Jan Hubicka  <hubicka@ucw.cz>

	* ipa-modref.c (merge_call_lhs_flags): Correct handling of deref.
	(analyze_ssa_name_flags): Fix typo in comment.

2021-03-29  Alex Coplan  <alex.coplan@arm.com>

	PR target/99216
	* config/aarch64/aarch64-sve-builtins.cc
	(function_builder::add_function): Add placeholder_p argument, use
	placeholder decls if this is set.
	(function_builder::add_unique_function): Instead of conditionally adding
	direct overloads, unconditionally add either a direct overload or a
	placeholder.
	(function_builder::add_overloaded_function): Set placeholder_p if we're
	using C++ overloads. Use the obstack for string storage instead
	of relying on the tree nodes.
	(function_builder::add_overloaded_functions): Don't return early for
	m_direct_overloads: we need to add placeholders.
	* config/aarch64/aarch64-sve-builtins.h
	(function_builder::add_function): Add placeholder_p argument.

2021-03-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99807
	* tree-vect-slp.c (vect_slp_analyze_node_operations_1): Move
	assert below VEC_PERM handling.

2021-03-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	PR target/99037
	* config/aarch64/aarch64-simd.md (move_lo_quad_internal_<mode>): Use
	aarch64_simd_or_scalar_imm_zero to match zeroes.  Remove pattern
	matching const_int 0.
	(move_lo_quad_internal_be_<mode>): Likewise.
	(move_lo_quad_<mode>): Update for the above.
	* config/aarch64/iterators.md (VQ_2E): Delete.

2021-03-29  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/99777
	* fold-const.c (extract_muldiv_1): For conversions, punt on casts from
	types other than scalar integral types.

2021-03-28  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/rs6000.c (rs6000_output_dwarf_dtprel): Do not add
	XCOFF TLS reloc decorations.

2021-03-28  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/analyzer.texi (Analyzer Internals): Update link to
	"A Memory Model for Static Analysis of C Programs".

2021-03-26  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/aix.h (ADJUST_FIELD_ALIGN): Call function.
	* config/rs6000/rs6000-protos.h (rs6000_special_adjust_field_align):
	Declare.
	* config/rs6000/rs6000.c (rs6000_special_adjust_field_align): New.
	(rs6000_special_round_type_align): Recursively check innermost first
	field.

2021-03-26  Jakub Jelinek  <jakub@redhat.com>

	PR debug/99334
	* dwarf2out.h (struct dw_fde_node): Add rule18 member.
	* dwarf2cfi.c (dwarf2out_frame_debug_expr): When handling (set hfp sp)
	assignment with drap_reg active, queue reg save for hfp with offset 0
	and flush queued reg saves.  When handling a push with rule18,
	defer queueing reg save for hfp and just assert the offset is 0.
	(scan_trace): Assert that fde->rule18 is false.

2021-03-26  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/99766
	* ira-costs.c (record_reg_classes): Put case with
	CT_RELAXED_MEMORY adjacent to one with CT_MEMORY.
	* ira.c (ira_setup_alts): Ditto.
	* lra-constraints.c (process_alt_operands): Ditto.
	* recog.c (asm_operand_ok): Ditto.
	* reload.c (find_reloads): Ditto.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-protos.h
	(cpu_addrcost_table::post_modify_ld3_st3): New member variable.
	(cpu_addrcost_table::post_modify_ld4_st4): Likewise.
	* config/aarch64/aarch64.c (generic_addrcost_table): Update
	accordingly, using the same costs as for post_modify.
	(exynosm1_addrcost_table, xgene1_addrcost_table): Likewise.
	(thunderx2t99_addrcost_table, thunderx3t110_addrcost_table):
	(tsv110_addrcost_table, qdf24xx_addrcost_table): Likewise.
	(a64fx_addrcost_table): Likewise.
	(neoversev1_addrcost_table): New.
	(neoversev1_tunings): Use neoversev1_addrcost_table.
	(aarch64_address_cost): Use the new post_modify costs for CImode
	and XImode.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.opt
	(-param=aarch64-loop-vect-issue-rate-niters=): New parameter.
	* doc/invoke.texi: Document it.
	* config/aarch64/aarch64-protos.h (aarch64_base_vec_issue_info)
	(aarch64_scalar_vec_issue_info, aarch64_simd_vec_issue_info)
	(aarch64_advsimd_vec_issue_info, aarch64_sve_vec_issue_info)
	(aarch64_vec_issue_info): New structures.
	(cpu_vector_cost): Write comments above the variables rather
	than to the side.
	(cpu_vector_cost::issue_info): New member variable.
	* config/aarch64/aarch64.c: Include gimple-pretty-print.h
	and tree-ssa-loop-niter.h.
	(generic_vector_cost, a64fx_vector_cost, qdf24xx_vector_cost)
	(thunderx_vector_cost, tsv110_vector_cost, cortexa57_vector_cost)
	(exynosm1_vector_cost, xgene1_vector_cost, thunderx2t99_vector_cost)
	(thunderx3t110_vector_cost): Initialize issue_info to null.
	(neoversev1_scalar_issue_info, neoversev1_advsimd_issue_info)
	(neoversev1_sve_issue_info, neoversev1_vec_issue_info): New structures.
	(neoversev1_vector_cost): Use them.
	(aarch64_vec_op_count, aarch64_sve_op_count): New structures.
	(aarch64_vector_costs::saw_sve_only_op): New member variable.
	(aarch64_vector_costs::num_vector_iterations): Likewise.
	(aarch64_vector_costs::scalar_ops): Likewise.
	(aarch64_vector_costs::advsimd_ops): Likewise.
	(aarch64_vector_costs::sve_ops): Likewise.
	(aarch64_vector_costs::seen_loads): Likewise.
	(aarch64_simd_vec_costs_for_flags): New function.
	(aarch64_analyze_loop_vinfo): Initialize num_vector_iterations.
	Count the number of predicate operations required by SVE WHILE
	instructions.
	(aarch64_comparison_type, aarch64_multiply_add_p): New functions.
	(aarch64_sve_only_stmt_p, aarch64_in_loop_reduction_latency): Likewise.
	(aarch64_count_ops): Likewise.
	(aarch64_add_stmt_cost): Record whether see an SVE operation
	that cannot currently be implementing using Advanced SIMD.
	Record issue information about the scalar, Advanced SIMD
	and (where relevant) SVE versions of a loop.
	(aarch64_vec_op_count::dump): New function.
	(aarch64_sve_op_count::dump): Likewise.
	(aarch64_estimate_min_cycles_per_iter): Likewise.
	(aarch64_adjust_body_cost): If issue information is available,
	try to compare the issue rates of the various loop implementations
	and increase or decrease the vector body cost accordingly.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (aarch64_detect_vector_stmt_subtype):
	Assume a zero cost for induction phis.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (aarch64_embedded_comparison_type): New
	function.
	(aarch64_adjust_stmt_cost): Add the costs of embedded scalar and
	vector comparisons.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (aarch64_detect_scalar_stmt_subtype):
	New function.
	(aarch64_add_stmt_cost): Call it.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-tuning-flags.def (matched_vector_throughput):
	New tuning parameter.
	* config/aarch64/aarch64.c (neoversev1_tunings): Use it.
	(aarch64_estimated_sve_vq): New function.
	(aarch64_vector_costs::analyzed_vinfo): New member variable.
	(aarch64_vector_costs::is_loop): Likewise.
	(aarch64_vector_costs::unrolled_advsimd_niters): Likewise.
	(aarch64_vector_costs::unrolled_advsimd_stmts): Likewise.
	(aarch64_record_potential_advsimd_unrolling): New function.
	(aarch64_analyze_loop_vinfo, aarch64_analyze_bb_vinfo): Likewise.
	(aarch64_add_stmt_cost): Call aarch64_analyze_loop_vinfo or
	aarch64_analyze_bb_vinfo on the first use of a costs structure.
	Detect whether we're vectorizing a loop for SVE that might be
	completely unrolled if it used Advanced SIMD instead.
	(aarch64_adjust_body_cost_for_latency): New function.
	(aarch64_finish_cost): Call it.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (aarch64_vector_costs): New structure.
	(aarch64_init_cost): New function.
	(aarch64_add_stmt_cost): Use aarch64_vector_costs instead of
	the default unsigned[3].
	(aarch64_finish_cost, aarch64_destroy_cost_data): New functions.
	(TARGET_VECTORIZE_INIT_COST): Override.
	(TARGET_VECTORIZE_FINISH_COST): Likewise.
	(TARGET_VECTORIZE_DESTROY_COST_DATA): Likewise.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (neoversev1_advsimd_vector_cost)
	(neoversev1_sve_vector_cost): New cost structures.
	(neoversev1_vector_cost): Likewise.
	(neoversev1_tunings): Use them.  Enable use_new_vector_costs.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-protos.h
	(sve_vec_cost::scatter_store_elt_cost): New member variable.
	* config/aarch64/aarch64.c (generic_sve_vector_cost): Update
	accordingly, taking the cost from the cost of a scalar_store.
	(a64fx_sve_vector_cost): Likewise.
	(aarch64_detect_vector_stmt_subtype): Detect scatter stores.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-protos.h
	(simd_vec_cost::store_elt_extra_cost): New member variable.
	* config/aarch64/aarch64.c (generic_advsimd_vector_cost): Update
	accordingly, using the vec_to_scalar cost for the new field.
	(generic_sve_vector_cost, a64fx_advsimd_vector_cost): Likewise.
	(a64fx_sve_vector_cost, qdf24xx_advsimd_vector_cost): Likewise.
	(thunderx_advsimd_vector_cost, tsv110_advsimd_vector_cost): Likewise.
	(cortexa57_advsimd_vector_cost, exynosm1_advsimd_vector_cost)
	(xgene1_advsimd_vector_cost, thunderx2t99_advsimd_vector_cost)
	(thunderx3t110_advsimd_vector_cost): Likewise.
	(aarch64_detect_vector_stmt_subtype): Detect single-element stores.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-protos.h (simd_vec_cost::ld2_st2_permute_cost)
	(simd_vec_cost::ld3_st3_permute_cost): New member variables.
	(simd_vec_cost::ld4_st4_permute_cost): Likewise.
	* config/aarch64/aarch64.c (generic_advsimd_vector_cost): Update
	accordingly, using zero for the new costs.
	(generic_sve_vector_cost, a64fx_advsimd_vector_cost): Likewise.
	(a64fx_sve_vector_cost, qdf24xx_advsimd_vector_cost): Likewise.
	(thunderx_advsimd_vector_cost, tsv110_advsimd_vector_cost): Likewise.
	(cortexa57_advsimd_vector_cost, exynosm1_advsimd_vector_cost)
	(xgene1_advsimd_vector_cost, thunderx2t99_advsimd_vector_cost)
	(thunderx3t110_advsimd_vector_cost): Likewise.
	(aarch64_ld234_st234_vectors): New function.
	(aarch64_adjust_stmt_cost): Likewise.
	(aarch64_add_stmt_cost): Call aarch64_adjust_stmt_cost if using
	the new vector costs.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-protos.h (sve_vec_cost): Turn into a
	derived class of simd_vec_cost.  Add information about CLAST[AB]
	and FADDA instructions.
	* config/aarch64/aarch64.c (generic_sve_vector_cost): Update
	accordingly, using the vec_to_scalar costs for the new fields.
	(a64fx_sve_vector_cost): Likewise.
	(aarch64_reduc_type): New function.
	(aarch64_sve_in_loop_reduction_latency): Likewise.
	(aarch64_detect_vector_stmt_subtype): Take a vinfo parameter.
	Use aarch64_sve_in_loop_reduction_latency to handle SVE reductions
	that occur in the loop body.
	(aarch64_add_stmt_cost): Update call accordingly.

2021-03-26  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-tuning-flags.def (use_new_vector_costs):
	New tuning flag.
	* config/aarch64/aarch64-protos.h (simd_vec_cost): Put comments
	above the fields rather than to the right.
	(simd_vec_cost::reduc_i8_cost): New member variable.
	(simd_vec_cost::reduc_i16_cost): Likewise.
	(simd_vec_cost::reduc_i32_cost): Likewise.
	(simd_vec_cost::reduc_i64_cost): Likewise.
	(simd_vec_cost::reduc_f16_cost): Likewise.
	(simd_vec_cost::reduc_f32_cost): Likewise.
	(simd_vec_cost::reduc_f64_cost): Likewise.
	* config/aarch64/aarch64.c (generic_advsimd_vector_cost): Update
	accordingly, using the vec_to_scalar_cost for the new fields.
	(generic_sve_vector_cost, a64fx_advsimd_vector_cost): Likewise.
	(a64fx_sve_vector_cost, qdf24xx_advsimd_vector_cost): Likewise.
	(thunderx_advsimd_vector_cost, tsv110_advsimd_vector_cost): Likewise.
	(cortexa57_advsimd_vector_cost, exynosm1_advsimd_vector_cost)
	(xgene1_advsimd_vector_cost, thunderx2t99_advsimd_vector_cost)
	(thunderx3t110_advsimd_vector_cost): Likewise.
	(aarch64_use_new_vector_costs_p): New function.
	(aarch64_simd_vec_costs): New function, split out from...
	(aarch64_builtin_vectorization_cost): ...here.
	(aarch64_is_reduction): New function.
	(aarch64_detect_vector_stmt_subtype): Likewise.
	(aarch64_add_stmt_cost): Call aarch64_detect_vector_stmt_subtype if
	using the new vector costs.

2021-03-26  Iain Buclaw  <ibuclaw@gdcproject.org>

	PR ipa/99466
	* tree-emutls.c (get_emutls_init_templ_addr): Mark initializer of weak
	TLS declarations as public.

2021-03-26  Iain Buclaw  <ibuclaw@gdcproject.org>

	* config/aarch64/aarch64-d.c (IN_TARGET_CODE): Define.
	* config/arm/arm-d.c (IN_TARGET_CODE): Likewise.
	* config/i386/i386-d.c (IN_TARGET_CODE): Likewise.
	* config/mips/mips-d.c (IN_TARGET_CODE): Likewise.
	* config/pa/pa-d.c (IN_TARGET_CODE): Likewise.
	* config/riscv/riscv-d.c (IN_TARGET_CODE): Likewise.
	* config/rs6000/rs6000-d.c (IN_TARGET_CODE): Likewise.
	* config/s390/s390-d.c (IN_TARGET_CODE): Likewise.
	* config/sparc/sparc-d.c (IN_TARGET_CODE): Likewise.

2021-03-26  Iain Buclaw  <ibuclaw@gdcproject.org>

	PR d/91595
	* config.gcc (*-*-cygwin*): Add winnt-d.o
	(*-*-mingw*): Likewise.
	* config/i386/cygwin.h (EXTRA_TARGET_D_OS_VERSIONS): New macro.
	* config/i386/mingw32.h (EXTRA_TARGET_D_OS_VERSIONS): Likewise.
	* config/i386/t-cygming: Add winnt-d.o.
	* config/i386/winnt-d.c: New file.

2021-03-26  Iain Buclaw  <ibuclaw@gdcproject.org>

	* config/freebsd-d.c: Include memmodel.h.

2021-03-26  Iain Buclaw  <ibuclaw@gdcproject.org>

	PR d/99691
	* config.gcc (*-*-openbsd*): Add openbsd-d.o.
	* config/t-openbsd: Add openbsd-d.o.
	* config/openbsd-d.c: New file.

2021-03-25  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

	PR tree-optimization/96974
	* tree-vect-stmts.c (vect_get_vector_types_for_stmt): Replace assert
	with graceful exit.

2021-03-25  H.J. Lu  <hjl.tools@gmail.com>

	Revert:
	2021-03-25  H.J. Lu  <hjl.tools@gmail.com>

	PR target/98209
	PR target/99744
	* config/i386/i386.c (ix86_can_inline_p): Don't check ISA for
	always_inline in system headers.

2021-03-25  Kewen Lin  <linkw@linux.ibm.com>

	* tree-vect-loop.c (vect_model_reduction_cost): Init inside_cost.

2021-03-25  Jakub Jelinek  <jakub@redhat.com>

	PR c++/99565
	* tree-core.h (enum operand_equal_flag): Add OEP_ADDRESS_OF_SAME_FIELD.
	* fold-const.c (operand_compare::operand_equal_p): Don't compare
	field offsets if OEP_ADDRESS_OF_SAME_FIELD.

2021-03-25  H.J. Lu  <hjl.tools@gmail.com>

	PR target/98209
	PR target/99744
	* config/i386/i386.c (ix86_can_inline_p): Don't check ISA for
	always_inline in system headers.

2021-03-25  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99746
	* tree-vect-slp-patterns.c (complex_pattern::build): Do not mark
	the scalar stmt as patterned.  Instead set up required things
	manually.

2021-03-25  Xionghu Luo  <luoxhu@linux.ibm.com>

	* config/rs6000/rs6000.c (power8_costs): Change l2 cache
	from 256 to 512.

2021-03-24  Martin Liska  <mliska@suse.cz>

	PR target/99753
	* common/config/i386/i386-common.c (ARRAY_SIZE): Fix off-by-one
	error.
	* config/i386/i386-options.c (ix86_option_override_internal):
	Add run-time assert.

2021-03-24  Martin Jambor  <mjambor@suse.cz>

	PR ipa/99122
	* ipa-cp.c (initialize_node_lattices): Mark as bottom all
	parameters with unknown type.
	(ipacp_value_safe_for_type): New function.
	(propagate_vals_across_arith_jfunc): Verify that the constant type
	can be used for a type of the formal parameter.
	(propagate_vals_across_ancestor): Likewise.
	(propagate_scalar_across_jump_function): Likewise.  Pass the type
	also to propagate_vals_across_ancestor.

2021-03-24  Christophe Lyon  <christophe.lyon@linaro.org>

	PR target/99727
	* config/arm/mve.md (movmisalign<mode>_mve_store): Use Ux
	constraint.
	(movmisalign<mode>_mve_load): Likewise.

2021-03-24  Jakub Jelinek  <jakub@redhat.com>

	PR target/99724
	* config/arm/vec-common.md (one_cmpl<mode>2, neg<mode>2,
	movmisalign<mode>): Disable expanders for TARGET_REALLY_IWMMXT.

2021-03-24  Alexandre Oliva  <oliva@adacore.com>

	* doc/sourcebuild.texi (sysconf): New effective target.

2021-03-24  Alexandre Oliva  <oliva@adacore.com>

	* config/i386/predicates.md (reg_or_const_vec_operand): New.
	* config/i386/sse.md (ssse3_pshufbv8qi3): Add an expander for
	the now *-prefixed insn_and_split, turn the splitter const vec
	into an input for the insn, making it an ignored immediate for
	non-split cases, and loaded into the scratch register
	otherwise.

2021-03-23  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/99581
	* config/aarch64/constraints.md (Utq, UOb, UOh, UOw, UOd, UOty):
	Use define_relaxed_memory_constraint for them.

2021-03-23  Iain Sandoe  <iain@sandoe.co.uk>

	PR target/99733
	* config/host-darwin.c (darwin_gt_pch_use_address): Add a
	colon to the diagnostic message.

2021-03-23  Ilya Leoshkevich  <iii@linux.ibm.com>

	* fwprop.c (fwprop_propagation::fwprop_propagation): Look at
	set_info's uses.
	(try_fwprop_subst_note): Use set_info instead of insn_info.
	(try_fwprop_subst_pattern): Likewise.
	(try_fwprop_subst_notes): Likewise.
	(try_fwprop_subst): Likewise.
	(forward_propagate_subreg): Likewise.
	(forward_propagate_and_simplify): Likewise.
	(forward_propagate_into): Likewise.
	* rtl-ssa/accesses.h (set_info::single_nondebug_use) New
	method.
	(set_info::single_nondebug_insn_use): Likewise.
	(set_info::single_phi_use): Likewise.
	* rtl-ssa/member-fns.inl (set_info::single_nondebug_use) New
	method.
	(set_info::single_nondebug_insn_use): Likewise.
	(set_info::single_phi_use): Likewise.

2021-03-23  Christophe Lyon  <christophe.lyon@linaro.org>

	* doc/sourcebuild.texi (arm_dsp_ok, arm_dsp): Document.

2021-03-23  Jakub Jelinek  <jakub@redhat.com>

	PR target/99540
	* config/aarch64/aarch64.c (aarch64_add_offset): Tell
	expand_mult to perform an unsigned rather than a signed
	multiplication.

2021-03-23  H.J. Lu  <hjl.tools@gmail.com>

	PR target/99704
	* config/i386/cpuid.h (__cpuid): Add __volatile__.
	(__cpuid_count): Likewise.

2021-03-23  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99721
	* tree-vect-slp.c (vect_slp_analyze_node_operations):
	Make sure we can schedule the node.

2021-03-23  Marcus Comstedt  <marcus@mc.pp.se>

	* config/riscv/riscv.c (riscv_subword): Take endianness into
	account when calculating the byte offset.

2021-03-23  Marcus Comstedt  <marcus@mc.pp.se>

	* config/riscv/predicates.md (subreg_lowpart_operator): New predicate
	* config/riscv/riscv.md (*addsi3_extended2, *subsi3_extended2)
	(*negsi2_extended2, *mulsi3_extended2, *<optab>si3_mask)
	(*<optab>si3_mask_1, *<optab>di3_mask, *<optab>di3_mask_1)
	(*<optab>si3_extend_mask, *<optab>si3_extend_mask_1): Use
	new predicate "subreg_lowpart_operator"

2021-03-23  Marcus Comstedt  <marcus@mc.pp.se>

	* config/riscv/riscv.c (riscv_swap_instruction): New function
	to byteswap an SImode rtx containing an instruction.
	(riscv_trampoline_init): Byteswap the generated instructions
	when needed.

2021-03-23  Marcus Comstedt  <marcus@mc.pp.se>

	* common/config/riscv/riscv-common.c
	(TARGET_DEFAULT_TARGET_FLAGS): Set default endianness.
	* config.gcc (riscv32be-*, riscv64be-*): Set
	TARGET_BIG_ENDIAN_DEFAULT to 1.
	* config/riscv/elf.h (LINK_SPEC): Change -melf* value
	depending on default endianness.
	* config/riscv/freebsd.h (LINK_SPEC): Likewise.
	* config/riscv/linux.h (LINK_SPEC): Likewise.
	* config/riscv/riscv.c (TARGET_DEFAULT_TARGET_FLAGS): Set
	default endianness.
	* config/riscv/riscv.h (DEFAULT_ENDIAN_SPEC): New macro.

2021-03-23  Marcus Comstedt  <marcus@mc.pp.se>

	* config/riscv/elf.h (LINK_SPEC): Pass linker endianness flag.
	* config/riscv/freebsd.h (LINK_SPEC): Likewise.
	* config/riscv/linux.h (LINK_SPEC): Likewise.
	* config/riscv/riscv.h (ASM_SPEC): Pass -mbig-endian and
	-mlittle-endian.
	(BYTES_BIG_ENDIAN): Handle big endian.
	(WORDS_BIG_ENDIAN): Define to BYTES_BIG_ENDIAN.
	* config/riscv/riscv.opt (-mbig-endian, -mlittle-endian): New
	options.
	* doc/invoke.texi (-mbig-endian, -mlittle-endian): Document.

2021-03-23  Stefan Schulze Frielinghaus  <stefansf@linux.ibm.com>

	* regcprop.c (find_oldest_value_reg): Ask target whether
	  different mode is fine for replacement register.

2021-03-23  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/99296
	* value-range.cc (irange::irange_set_1bit_anti_range): New.
	(irange::irange_set_anti_range): Call irange_set_1bit_anti_range
	* value-range.h (irange::irange_set_1bit_anti_range): New.

2021-03-22  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/99581
	* config/aarch64/constraints.md (UtQ): Use
	define_relaxed_memory_constraint for it.
	* doc/md.texi (define_relaxed_memory_constraint): Describe it.
	* genoutput.c (main): Process DEFINE_RELAXED_MEMORY_CONSTRAINT.
	* genpreds.c (constraint_data): Add bitfield is_relaxed_memory.
	(have_relaxed_memory_constraints): New static var.
	(relaxed_memory_start, relaxed_memory_end): Ditto.
	(add_constraint): Add arg is_relaxed_memory.  Check name for
	relaxed memory.  Set up is_relaxed_memory in constraint_data and
	have_relaxed_memory_constraints.  Adjust calls.
	(choose_enum_order): Process relaxed memory.
	(write_tm_preds_h): Ditto.
	(main): Process DEFINE_RELAXED_MEMORY_CONSTRAINT.
	* gensupport.c (process_rtx): Process DEFINE_RELAXED_MEMORY_CONSTRAINT.
	* ira-costs.c (record_reg_classes): Process CT_RELAXED_MEMORY.
	* ira-lives.c (single_reg_class): Use
	insn_extra_relaxed_memory_constraint.
	* ira.c (ira_setup_alts): CT_RELAXED_MEMORY.
	* lra-constraints.c (valid_address_p): Use
	insn_extra_relaxed_memory_constraint instead of other memory
	constraints.
	(process_alt_operands): Process CT_RELAXED_MEMORY.
	(curr_insn_transform): Use insn_extra_relaxed_memory_constraint.
	* recog.c (asm_operand_ok, preprocess_constraints): Process
	CT_RELAXED_MEMORY.
	* reload.c (find_reloads): Ditto.
	* rtl.def (DEFINE_RELAXED_MEMORY_CONSTRAINT): New.
	* stmt.c (parse_input_constraint): Use
	insn_extra_relaxed_memory_constraint.

2021-03-22  Segher Boessenkool  <segher@kernel.crashing.org>

	PR target/97926
	* ubsan.c (ubsan_instrument_float_cast): Don't test for unordered if
	there are no NaNs.

2021-03-22  Alex Coplan  <alex.coplan@arm.com>

	PR target/97252
	* config/arm/arm-protos.h (neon_make_constant): Add generate
	argument to guard emitting insns, default to true.
	* config/arm/arm.c (arm_legitimate_constant_p_1): Reject
	CONST_VECTORs which neon_make_constant can't handle.
	(neon_vdup_constant): Add generate argument, avoid emitting
	insns if it's not set.
	(neon_make_constant): Plumb new generate argument through.
	* config/arm/constraints.md (Ui): New. Use it...
	* config/arm/mve.md (*mve_mov<mode>): ... here.
	* config/arm/vec-common.md (movv8hf): Use neon_make_constant to
	synthesize constants.

2021-03-22  Richard Biener  <rguenther@suse.de>

	* debug.h: Add deprecation warning.

2021-03-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99694
	* tree-ssa-sccvn.c (visit_phi): Ignore edges with the
	PHI result.

2021-03-22  Kito Cheng  <kito.cheng@sifive.com>

	PR target/99702
	* config/riscv/riscv.c (riscv_expand_block_move): Get RTL value
	after type checking.

2021-03-22  Jakub Jelinek  <jakub@redhat.com>

	PR debug/99562
	PR debug/66728
	* dwarf2out.c (get_full_len): Use get_precision rather than
	min_precision.
	(add_const_value_attribute): Make sure add_AT_wide argument has
	precision prec rather than some very wide one.

2021-03-22  Kewen Lin  <linkw@linux.ibm.com>

	* config/rs6000/rs6000.md (*rotldi3_insert_sf,
	*mov<SFDF:mode><SFDF2:mode>cc_p9, floatsi<mode>2_lfiwax,
	floatsi<mode>2_lfiwax_mem, floatunssi<mode>2_lfiwzx,
	floatunssi<mode>2_lfiwzx_mem, *floatsidf2_internal,
	*floatunssidf2_internal, fix_trunc<mode>si2_stfiwx,
	fix_trunc<mode>si2_internal, fixuns_trunc<mode>si2_stfiwx,
	*round32<mode>2_fprs, *roundu32<mode>2_fprs,
	*fix_trunc<mode>si2_internal): Fix empty split condition.
	* config/rs6000/vsx.md (*vsx_le_undo_permute_<mode>,
	vsx_reduc_<VEC_reduc_name>_v2df, vsx_reduc_<VEC_reduc_name>_v4sf,
	*vsx_reduc_<VEC_reduc_name>_v2df_scalar,
	*vsx_reduc_<VEC_reduc_name>_v4sf_scalar): Likewise.

2021-03-22  Xionghu Luo  <luoxhu@linux.ibm.com>

	PR target/98914
	* config/rs6000/rs6000.c (rs6000_expand_vector_set_var_p9):
	Convert idx to DImode.
	(rs6000_expand_vector_set_var_p8): Likewise.

2021-03-21  Jakub Jelinek  <jakub@redhat.com>

	PR debug/99388
	* dwarf2out.c (insert_float): Change return type from void to
	unsigned, handle GET_MODE_SIZE (mode) == 2 and return element size.
	(mem_loc_descriptor, loc_descriptor, add_const_value_attribute):
	Adjust callers.

2021-03-20  H.J. Lu  <hjl.tools@gmail.com>

	PR target/99679
	* config/i386/i386.c (construct_container): Check cfun != NULL
	before accessing silent_p.

2021-03-20  Ahamed Husni  <ahamedhusni73@gmail.com>

	* asan.c: Fix typos in comments.

2021-03-20  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/99680
	* lra-constraints.c (skip_contraint_modifiers): Rename to skip_constraint_modifiers.
	(process_address_1): Check empty constraint before using
	CONSTRAINT_LEN.

2021-03-19  Pat Haugen  <pthaugen@linux.ibm.com>

	* config/rs6000/rs6000.c (power10_cost): New.
	(rs6000_option_override_internal): Set Power10 costs.
	(rs6000_issue_rate): Set Power10 issue rate.
	* config/rs6000/power10.md: Rewrite for Power10.

2021-03-19  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/99663
	* lra-constraints.c (process_address_1): Don't use unknown
	constraint for address constraint.

2021-03-19  Iain Sandoe  <iain@sandoe.co.uk>

	PR target/99661
	* config.gcc (powerpc-*-darwin8): Delete the reference to
	the now removed darwin8.h.

2021-03-19  Olivier Hainque  <hainque@adacore.com>

	PR target/99660
	* config/vxworksae.h (VX_CPU_PREFIX): Define.

2021-03-19  John David Anglin  <danglin@gcc.gnu.org>

	* config/pa/pa.c (import_milli): Use memcpy instead of strncpy.

2021-03-19  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/99656
	* tree-vect-slp-patterns.c (linear_loads_p,
	complex_add_pattern::matches, is_eq_or_top,
	vect_validate_multiplication, complex_mul_pattern::matches,
	complex_fms_pattern::matches): Remove complex_perm_kinds_t.
	* tree-vectorizer.h: (complex_load_perm_t): Removed.
	(slp_tree_to_load_perm_map_t): Use complex_perm_kinds_t instead of
	complex_load_perm_t.

2021-03-19  H.J. Lu  <hjl.tools@gmail.com>

	PR target/99652
	* config/i386/i386-options.c (ix86_init_machine_status): Set
	silent_p to true.
	* config/i386/i386.c (init_cumulative_args): Set silent_p to
	false.
	(construct_container): Return early for return and argument
	errors if silent_p is true.
	* config/i386/i386.h (machine_function): Add silent_p.

2021-03-19  Jakub Jelinek  <jakub@redhat.com>

	PR target/99593
	* config/arm/constraints.md (Ds): New constraint.
	* config/arm/vec-common.md (mve_vshlq_<supf><mode>): Use w,Ds
	constraint instead of w,Dm.

2021-03-19  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn.c (gcn_parse_amdgpu_hsa_kernel_attribute): Fix quotes
	in error message.

2021-03-19  Eric Botcazou  <ebotcazou@adacore.com>

	PR middle-end/99641
	* fold-const.c (native_encode_initializer) <CONSTRUCTOR>: For an
	array type, do the computation of the current position in sizetype.

2021-03-18  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/99422
	* lra-constraints.c (process_address_1): Use lookup_constraint
	only for a single constraint.

2021-03-18  Martin Sebor  <msebor@redhat.com>

	PR middle-end/99502
	* gimple-array-bounds.cc (inbounds_vbase_memaccess_p): Rename...
	(inbounds_memaccess_p): ...to this.  Check the ending offset of
	the accessed member.

2021-03-18  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn.c (gcn_parse_amdgpu_hsa_kernel_attribute): Add %< and
	  %> quote markers to error messages.
	(gcn_goacc_validate_dims): Likewise.
	(gcn_conditional_register_usage): Remove exclaimation mark from error
	message.
	(gcn_vectorize_vec_perm_const): Ensure perm is fully uninitialized.

2021-03-18  Jan Hubicka  <hubicka@ucw.cz>

	* config/i386/x86-tune-costs.h (struct processor_costs): Fix costs of
	integer divides1.

2021-03-18  Sinan Lin  <sinan@isrc.iscas.ac.cn>
	    Kito Cheng  <kito.cheng@sifive.com>

	* config/riscv/riscv.c (riscv_block_move_straight): Change type
	to unsigned HOST_WIDE_INT for parameter and local variable with
	HOST_WIDE_INT type.
	(riscv_adjust_block_mem): Ditto.
	(riscv_block_move_loop): Ditto.
	(riscv_expand_block_move): Ditto.

2021-03-18  Nick Clifton  <nickc@redhat.com>

	* config/v850/v850.c (construct_restore_jr): Increase static
	 buffer size.
	(construct_save_jarl): Likewise.
	* config/v850/v850.h (DWARF2_DEBUGGING_INFO): Define.

2021-03-18  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64.c (aarch64_adjust_generic_arch_tuning): Define.
	(aarch64_override_options_internal): Use it.
	(generic_tunings): Add AARCH64_EXTRA_TUNE_CSE_SVE_VL_CONSTANTS to
	tune_flags.

2021-03-17  Sandra Loosemore  <sandra@codesourcery.com>

	* config/nios2/nios2.c (nios2_custom_check_insns): Clean up
	error message format issues.
	(nios2_option_override): Likewise.
	(nios2_expand_fpu_builtin): Likewise.
	(nios2_init_custom_builtins): Adjust to avoid bogus strncpy
	truncation warning.
	(nios2_expand_custom_builtin): More error message format fixes.
	(nios2_expand_rdwrctl_builtin): Likewise.
	(nios2_expand_rdprs_builtin): Likewise.
	(nios2_expand_eni_builtin): Likewise.
	(nios2_expand_builtin): Likewise.
	(nios2_register_custom_code): Likewise.
	(nios2_valid_target_attribute_rec): Likewise.
	(nios2_add_insn_asm): Fix uninitialized variable warning.

2021-03-17  Jan Hubicka  <jh@suse.cz>

	* config/i386/x86-tune-costs.h (struct processor_costs): Update costs
	of gather to match reality.
	* config/i386/x86-tune.def (X86_TUNE_USE_GATHER): Enable for znver3.

2021-03-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-builtins.c (aarch64_expand_rng_builtin): Use EQ
	to compare against CC_REG rather than NE.

2021-03-17  H.J. Lu  <hjl.tools@gmail.com>

	PR target/99504
	* config/i386/i386.c (ix86_force_load_from_GOT_p): Support
	inline assembly statements.
	(ix86_print_operand): Update 'P' handling for -fno-plt.

2021-03-17  Tamar Christina  <tamar.christina@arm.com>

	PR target/99542
	* config/aarch64/aarch64.c
	(aarch64_simd_clone_compute_vecsize_and_simdlen): Remove unused var.

2021-03-16  Segher Boessenkool  <segher@kernel.crashing.org>

	PR target/98092
	* config/rs6000/predicates.md (branch_comparison_operator): Allow
	ordered and unordered for CCFPmode, if flag_finite_math_only.

2021-03-16  Jakub Jelinek  <jakub@redhat.com>

	PR target/99600
	* config/i386/i386-expand.c (ix86_split_lea_for_addr): Emit a MULT
	rather than ASHIFT.
	* config/i386/i386.md (mult by 1248 into ashift): New splitter.

2021-03-16  Martin Liska  <mliska@suse.cz>

	PR target/99592
	* optc-save-gen.awk: Add flag_ipa_ra to exceptions for
	cl_optimization_compare function.

2021-03-16  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/s390.c (f_constraint_p): Treat "fv" constraints
	as "v".

2021-03-16  Jakub Jelinek  <jakub@redhat.com>

	PR target/99563
	* config/i386/i386.h (struct machine_function): Add
	has_explicit_vzeroupper bitfield.
	* config/i386/i386-expand.c (ix86_expand_builtin): Set
	cfun->machine->has_explicit_vzeroupper when expanding
	IX86_BUILTIN_VZEROUPPER.
	* config/i386/i386-features.c (rest_of_handle_insert_vzeroupper):
	Do the mode switching only when TARGET_VZEROUPPER, expensive
	optimizations turned on and not optimizing for size.
	(pass_insert_vzeroupper::gate): Enable even when
	cfun->machine->has_explicit_vzeroupper is set.

2021-03-16  Jakub Jelinek  <jakub@redhat.com>

	PR target/99542
	* config/aarch64/aarch64.c
	(aarch64_simd_clone_compute_vecsize_and_simdlen): If not a function
	definition, walk TYPE_ARG_TYPES list if non-NULL for argument types
	instead of DECL_ARGUMENTS.  Ignore types for uniform arguments.

2021-03-15  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98834
	* tree-ssa-sccvn.c (vn_reference_lookup_3): Handle missing
	subsetting by truncating the access size.

2021-03-15  Jan Hubicka  <hubicka@ucw.cz>

	* config/i386/i386-options.c (processor_cost_table): Add znver3_cost.
	* config/i386/x86-tune-costs.h (znver3_cost): New gobal variable; copy
	of znver2_cost.

2021-03-15  Martin Liska  <mliska@suse.cz>

	* spellcheck.c: Add missing comma in initialization.

2021-03-14  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/sse.md (*vec_extract<mode>): Merge alternative 0 with
	alternative 2 and alternative 1 with alternative 3 using
	YW register constraint.
	(*vec_extract<PEXTR_MODE12:mode>_zext): Merge alternatives
	using YW register constraint.
	(*vec_extractv16qi_zext): Ditto.
	(*vec_extractv4si): Merge alternatives 4 and 5
	using Yw register constraint.
	(*ssse3_palignr<mode>_perm): Use Yw instead of v for alternative 3.

2021-03-13  Martin Sebor  <msebor@redhat.com>

	PR tree-optimization/99489
	* builtins.c (gimple_call_alloc_size): Fail gracefully when argument
	is not a call statement.

2021-03-13  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/99544
	* match.pd (X + (X << C) -> X * (1 + (1 << C))): Don't simplify
	if for vector types multiplication can't be done in type's mode.

2021-03-12  Eric Botcazou  <ebotcazou@adacore.com>

	PR target/99422
	* config/sparc/constraints.md (w): Rename to...
	(W): ... this and ditch previous implementation.
	* config/sparc/sparc.md (*movdi_insn_sp64): Replace W with m.
	(*movdf_insn_sp64): Likewise.
	(*mov<VM64:mode>_insn_sp64): Likewise.
	* config/sparc/sync.md (*atomic_compare_and_swap<mode>_1): Replace
	w with W.
	(atomic_compare_and_swap_leon3_1): Likewise.
	(*atomic_compare_and_swapdi_v8plus): Likewise.
	* config/sparc/sparc.c (memory_ok_for_ldd): Remove useless test on
	architecture and add missing address validity check during LRA.

2021-03-12  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/98858
	* gimplify.c (omp_add_variable): Handle NULL_TREE as size
	occuring for assumed-size arrays in use_device_{ptr,addr}.

2021-03-12  Jakub Jelinek  <jakub@redhat.com>

	PR target/99321
	* config/i386/constraints.md (YW): New internal constraint.
	* config/i386/sse.md (v_Yw): Add V4TI, V2TI, V1TI and TI cases.
	(*<sse2_avx2>_<insn><mode>3<mask_name>,
	*<sse2_avx2>_uavg<mode>3<mask_name>, *abs<mode>2,
	*<s>mul<mode>3_highpart<mask_name>): Use <v_Yw> instead of v in
	constraints.
	(<sse2_avx2>_psadbw): Use YW instead of v in constraints.
	(*avx2_pmaddwd, *sse2_pmaddwd, *<code>v8hi3, *<code>v16qi3,
	avx2_pmaddubsw256, ssse3_pmaddubsw128): Merge last two alternatives
	into one, use Yw instead of former x,v.
	(ashr<mode>3, <insn><mode>3): Use <v_Yw> instead of x in constraints of
	the last alternative.
	(<sse2_avx2>_packsswb<mask_name>, <sse2_avx2>_packssdw<mask_name>,
	<sse2_avx2>_packuswb<mask_name>, <sse4_1_avx2>_packusdw<mask_name>,
	*<ssse3_avx2>_pmulhrsw<mode>3<mask_name>, <ssse3_avx2>_palignr<mode>,
	<ssse3_avx2>_pshufb<mode>3<mask_name>): Merge last two alternatives
	into one, use <v_Yw> instead of former x,v.
	(avx2_interleave_highv32qi<mask_name>,
	vec_interleave_highv16qi<mask_name>): Use Yw instead of v in
	constraints.  Add && <mask_avx512bw_condition> to condition.
	(avx2_interleave_lowv32qi<mask_name>,
	vec_interleave_lowv16qi<mask_name>,
	avx2_interleave_highv16hi<mask_name>,
	vec_interleave_highv8hi<mask_name>,
	avx2_interleave_lowv16hi<mask_name>, vec_interleave_lowv8hi<mask_name>,
	avx2_pshuflw_1<mask_name>, sse2_pshuflw_1<mask_name>,
	avx2_pshufhw_1<mask_name>, sse2_pshufhw_1<mask_name>,
	avx2_<code>v16qiv16hi2<mask_name>, sse4_1_<code>v8qiv8hi2<mask_name>,
	*sse4_1_<code>v8qiv8hi2<mask_name>_1, <sse2_avx2>_<insn><mode>3): Use
	Yw instead of v in constraints.
	* config/i386/mmx.md (Yv_Yw): New define_mode_attr.
	(*mmx_<insn><mode>3, mmx_ashr<mode>3, mmx_<insn><mode>3): Use <Yv_Yw>
	instead of Yv in constraints.
	(*mmx_<insn><mode>3, *mmx_mulv4hi3, *mmx_smulv4hi3_highpart,
	*mmx_umulv4hi3_highpart, *mmx_pmaddwd, *mmx_<code>v4hi3,
	*mmx_<code>v8qi3, mmx_pack<s_trunsuffix>swb, mmx_packssdw,
	mmx_punpckhbw, mmx_punpcklbw, mmx_punpckhwd, mmx_punpcklwd,
	*mmx_uavgv8qi3, *mmx_uavgv4hi3, mmx_psadbw): Use Yw instead of Yv in
	constraints.
	(*mmx_pinsrw, *mmx_pinsrb, *mmx_pextrw, *mmx_pextrw_zext, *mmx_pextrb,
	*mmx_pextrb_zext): Use YW instead of Yv in constraints.
	(*mmx_eq<mode>3, mmx_gt<mode>3): Use x instead of Yv in constraints.
	(mmx_andnot<mode>3, *mmx_<code><mode>3): Split last alternative into
	two, one with just x, another isa avx512vl with v.

2021-03-12  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Add missing param documentation.

2021-03-11  David Malcolm  <dmalcolm@redhat.com>

	PR analyzer/96374
	* Makefile.in (ANALYZER_OBJS): Add analyzer/feasible-graph.o and
	analyzer/trimmed-graph.o.
	* doc/analyzer.texi (Analyzer Paths): Rewrite description of
	feasibility checking to reflect new implementation.
	* doc/invoke.texi (-fdump-analyzer-feasibility): Document new
	option.
	* shortest-paths.h (shortest_paths::get_shortest_distance): New.

2021-03-11  David Malcolm  <dmalcolm@redhat.com>

	* digraph.cc (selftest::test_shortest_paths): Update
	shortest_paths init for new param.  Add test of
	SPS_TO_GIVEN_TARGET.
	* shortest-paths.h (enum shortest_path_sense): New.
	(shortest_paths::shortest_paths): Add "sense" param.
	Update for renamings.  Generalize to use "sense" param.
	(shortest_paths::get_shortest_path): Rename param.
	(shortest_paths::m_sense): New field.
	(shortest_paths::m_prev): Rename...
	(shortest_paths::m_best_edge): ...to this.
	(shortest_paths::get_shortest_path): Update for renamings.
	Conditionalize flipping of path on sense of traversal.

2021-03-11  David Malcolm  <dmalcolm@redhat.com>

	* digraph.cc (selftest::test_shortest_paths): Add test coverage
	for paths from B and C.
	* shortest-paths.h (shortest_paths::shortest_paths): Handle
	unreachable nodes, rather than asserting.

2021-03-11  David Edelsohn  <dje.gcc@gmail.com>

	PR target/99094
	* config/rs6000/rs6000.c (rs6000_xcoff_file_start): Don't create
	xcoff_tbss_section_name.
	* config/rs6000/xcoff.h (ASM_OUTPUT_TLS_COMMON): Use .lcomm.
	* xcoffout.c (xcoff_tbss_section_name): Delete.
	* xcoffout.h (xcoff_tbss_section_name): Delete.

2021-03-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99523
	* tree-cfg.c (dump_function_to_file): Dump SSA names
	w/o identifier to the decls section as well, not only those
	without a VAR_DECL.

2021-03-11  Jakub Jelinek  <jakub@redhat.com>

	PR ipa/99517
	* ipa-icf-gimple.c (func_checker::compare_gimple_call): For internal
	function calls with lhs fail if the lhs don't have compatible types.

2021-03-11  Hans-Peter Nilsson  <hp@axis.com>

	* config/cris/cris.h (HARD_FRAME_POINTER_REGNUM): Define.
	Change FRAME_POINTER_REGNUM to correspond to a new faked
	register faked_fp, part of GENNONACR_REGS like faked_ap.
	(CRIS_FAKED_REGS_CONTENTS): New helper macro.
	(FIRST_PSEUDO_REGISTER, FIXED_REGISTERS, CALL_USED_REGISTERS):
	(REG_ALLOC_ORDER, REG_CLASS_CONTENTS, REGNO_OK_FOR_BASE_P)
	(ELIMINABLE_REGS, REGISTER_NAMES): Adjust accordingly.
	* config/cris/cris.md (CRIS_FP_REGNUM): Renumber to new faked
	register.
	(CRIS_REAL_FP_REGNUM): New constant.
	* config/cris/cris.c (cris_reg_saved_in_regsave_area): Check
	for HARD_FRAME_POINTER_REGNUM instead of FRAME_POINTER_REGNUM.
	(cris_initial_elimination_offset): Handle elimination changes
	to HARD_FRAME_POINTER_REGNUM instead of FRAME_POINTER_REGNUM
	and add one from FRAME_POINTER_REGNUM to
	HARD_FRAME_POINTER_REGNUM.
	(cris_expand_prologue, cris_expand_epilogue): Emit code for
	hard_frame_pointer_rtx instead of frame_pointer_rtx.

2021-03-10  David Edelsohn  <dje.gcc@gmail.com>

	PR target/99492
	* config/rs6000/aix.h (ADJUST_FIELD_ALIGN): Add check for DCmode.
	* config/rs6000/rs6000.c (rs6000_special_round_type_align): Same.

2021-03-10  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/99422
	* lra-constraints.c (process_address_1): Don't check unknown
	constraint, use X for empty constraint.

2021-03-10  Alex Coplan  <alex.coplan@arm.com>

	* config/aarch64/aarch64.c (aarch64_vfp_is_call_or_return_candidate):
	Fix typo in comment describing "is_ha" argument.

2021-03-10  John David Anglin  <danglin@gcc.gnu.org>

	* doc/sourcebuild.texi: Document LRA target selector.

2021-03-10  David Malcolm  <dmalcolm@redhat.com>

	* doc/ux.texi: Add subsection contrasting interactive versus
	batch usage of GCC.

2021-03-10  Joel Hutton  <joel.hutton@arm.com>

	PR target/99102
	* tree-vect-stmts.c (vectorizable_store): Fix scatter store mask
	check condition.
	(vectorizable_load): Fix gather load mask check condition.

2021-03-10  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99510
	* tree.c (check_aligned_type): Check that the candidate
	has TYPE_USER_ALIGN set instead of matching with the
	original type.

2021-03-10  Eric Botcazou  <ebotcazou@adacore.com>

	* config/sparc/sparc.c (sparc_regmode_natural_size): Return 4 for
	float and vector integer modes only if the mode is not larger.

2021-03-10  Hans-Peter Nilsson  <hp@axis.com>

	* config/cris/cris.h (DWARF_FRAME_REGISTERS): Define.

2021-03-09  Vladimir N. Makarov  <vmakarov@redhat.com>

	* ira.c (ira_setup_alts, ira_get_dup_out_num): Process digital
	constraints > 9.
	* ira-lives.c (single_reg_class): Ditto.

2021-03-09  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* config.gcc (aarch64-*-rtems*): Include general rtems.h after
	the architecture-specific rtems.h.
	(aarch64-*-rtems*): Likewise.
	(arm*-*-rtems*): Likewise.
	(epiphany-*-rtems*): Likewise.
	(riscv*-*-rtems*): Likewise.

2021-03-09  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/99305
	* tree-ssa-phiopt.c (conditional_replacement): Test integer_pow2p
	before integer_all_onesp instead of vice versa.

2021-03-09  Richard Earnshaw  <rearnsha@arm.com>

	* common/config/arm/arm-common.c (arm_config_default): Change type
	of 'i' to unsigned.

2021-03-09  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/99454
	* lra-constraints.c (process_address_1): Process constraint 'g'
	separately and digital constraints containing more one digit.

2021-03-09  Nick Clifton  <nickc@redhat.com>

	* config/rx/rx.h (DBX_DEBUGGING_INFO): Define.
	(DWARF"_DEBUGGING_INFO): Define.

2021-03-09  Eric Botcazou  <ebotcazou@adacore.com>

	PR c++/90448
	* calls.c (initialize_argument_information): When the argument
	is passed by reference, do not make a copy in a thunk only if
	the argument is already in memory.  Remove redundant test for
	the case of callee copy.

2021-03-09  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/99454
	* lra-constraints.c (process_address_1): Process 0..9 constraints
	in process_address_1.

2021-03-09  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/s390.c (struct s390_processor processor_table):
	Binutils name string must not be empty.

2021-03-09  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.c (arc_attr_type): Remove function.

2021-03-09  Martin Liska  <mliska@suse.cz>

	PR target/99464
	* config/i386/i386-options.c (ix86_option_override_internal):
	Set isa_flags for OPTS argument and not for the global
	global_options.

2021-03-09  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/predicates.md (ds_form_mem_operand): Check
	in correct code.

2021-03-09  Aaron Sawdey  <acsawdey@linux.ibm.com>

	PR target/99070
	* config/rs6000/predicates.md (ds_form_mem_operand) New
	predicate.
	* config/rs6000/genfusion.pl (gen_ld_cmpi_p10) Use
	ds_form_mem_operand in ld/lwa patterns.
	* config/rs6000/fusion.md: Regenerate file.

2021-03-08  Martin Sebor  <msebor@redhat.com>

	PR middle-end/98266
	* gimple-array-bounds.cc (inbounds_vbase_memaccess_p): New function.
	(array_bounds_checker::check_array_bounds): Call it.

2021-03-08  Martin Sebor  <msebor@redhat.com>

	PR middle-end/97631
	* tree-ssa-strlen.c (maybe_warn_overflow): Test rawmem.
	(handle_builtin_stxncpy_strncat): Rename locals.  Determine
	destination size from allocation calls.  Issue a more appropriate
	kind of warning.
	(handle_builtin_memcpy): Pass true as rawmem to maybe_warn_overflow.
	(handle_builtin_memset): Same.

2021-03-08  Peter Bergner  <bergner@linux.ibm.com>

	PR target/98959
	* config/rs6000/rs6000.c (rs6000_emit_le_vsx_permute): Add an assert
	to ensure we do not have an Altivec style address.
	* config/rs6000/vsx.md (*vsx_le_perm_load_<mode>): Disable if passed
	an Altivec style address.
	(*vsx_le_perm_store_<mode>): Likewise.
	(splitters after *vsx_le_perm_store_<mode>): Likewise.
	(vsx_load_<mode>): Disable special expander if passed an Altivec
	style address.
	(vsx_store_<mode>): Likewise.

2021-03-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	PR target/99437
	* config/aarch64/predicates.md (aarch64_simd_shift_imm_vec_qi): Define.
	(aarch64_simd_shift_imm_vec_hi): Likewise.
	(aarch64_simd_shift_imm_vec_si): Likewise.
	(aarch64_simd_shift_imm_vec_di): Likewise.
	* config/aarch64/aarch64-simd.md (aarch64_shrn<mode>_insn_le): Use
	predicate from above.
	(aarch64_shrn<mode>_insn_be): Likewise.
	(aarch64_rshrn<mode>_insn_le): Likewise.
	(aarch64_rshrn<mode>_insn_be): Likewise.
	(aarch64_shrn2<mode>_insn_le): Likewise.
	(aarch64_shrn2<mode>_insn_be): Likewise.
	(aarch64_rshrn2<mode>_insn_le): Likewise.
	(aarch64_rshrn2<mode>_insn_be): Likewise.

2021-03-08  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/99422
	* lra-constraints.c (skip_contraint_modifiers): New function.
	(process_address_1): Use it before lookup_constraint call.

2021-03-08  Martin Liska  <mliska@suse.cz>

	PR target/99463
	* config/i386/i386-options.c (ix86_option_override_internal):
	Enable UINTR and HRESET for -march that supports it.

2021-03-08  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/s390.c (f_constraint_p): New function.
	(s390_md_asm_adjust): Implement TARGET_MD_ASM_ADJUST.
	(TARGET_MD_ASM_ADJUST): Likewise.

2021-03-08  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/97927
	* tree-nested.c (convert_local_reference_stmt): Avoid calling
	lookup_field_for_decl for Fortran module (= namespace context).

2021-03-08  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/s390.c (s390_expand_vec_compare): Implement <0
	comparison with arithmetic right shift.
	(s390_expand_vcond): No need for a force_reg anymore.
	s390_vec_compare will do it.
	* config/s390/vector.md ("vec_cmp<mode><tointvec>"): Accept also
	immediate operands.

2021-03-07  Jakub Jelinek  <jakub@redhat.com>

	PR target/99321
	* config/i386/constraints.md (Yw): Use SSE_REGS if TARGET_SSE
	but TARGET_AVX512BW or TARGET_AVX512VL is not set.  Adjust description
	and comment.
	* config/i386/sse.md (v_Yw): New define_mode_attr.
	(*<insn><mode>3, *mul<mode>3<mask_name>, *avx2_<code><mode>3,
	*sse4_1_<code><mode>3<mask_name>): Use <v_Yw> instead of v
	in constraints.
	* config/i386/mmx.md (mmx_pshufw_1, *vec_dupv4hi): Use Yw instead of
	xYw in constraints.

2021-03-06  Julian Brown  <julian@codesourcery.com>

	* tree-pretty-print.c (dump_generic_node): Emit non-generic
	address space info for aggregates.

2021-03-06  Hans-Peter Nilsson  <hp@axis.com>

	* config/cris/cris.h (MAX_FIXED_MODE_SIZE): Don't define.

2021-03-05  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/99322
	* tree-cfg.c (bb_to_omp_idx): New variable.
	(execute_build_cfg): Release the bb_to_omp_idx vector after
	cleanup_tree_cfg returns.
	(handle_abnormal_edges): Remove bb_to_omp_idx argument, adjust
	for bb_to_omp_idx being a vec<int> instead of pointer to array
	of ints.
	(make_edges): Remove bb_to_omp_idx local variable, don't pass
	it to handle_abnormal_edges, adjust for bb_to_omp_idx being a
	vec<int> instead of pointer to array of ints and don't free/release
	it at the end.
	(remove_bb): When removing a bb and placing forced label somewhere
	else, ensure it is put into the same OpenMP region during cfg
	pass if possible or to entry successor as fallback.  Unregister
	bb from bb_to_omp_idx.

2021-03-05  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/99378
	* lra-constraints.c (process_address_1): Skip decomposing address
	for asm insn operand with unknown constraint.

2021-03-05  Martin Jambor  <mjambor@suse.cz>

	PR ipa/98078
	* cgraph.c (cgraph_edge::set_call_stmt): Do not update all
	corresponding speculative edges if we are about to resolve
	sepculation.  Make edge direct (and so resolve speculations) before
	removing it from call_site_hash.
	(cgraph_edge::make_direct): Relax the initial assert to allow calling
	the function on speculative direct edges.

2021-03-05  Eric Botcazou  <ebotcazou@adacore.com>

	PR rtl-optimization/99376
	* rtlanal.c (nonzero_bits1) <arithmetic operators>: If the number
	of low-order zero bits is too large, set the result to 0 directly.

2021-03-04  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/93235
	* expmed.c (store_bit_field_using_insv): Return false of xop0 is a
	SUBREG and a SUBREG to op_mode can't be created.

2021-03-04  Alex Coplan  <alex.coplan@arm.com>

	PR target/99381
	* config/aarch64/aarch64-sve-builtins.cc
	(function_resolver::require_vector_type): Handle error_mark_node.

2021-03-04  Ilya Leoshkevich  <iii@linux.ibm.com>

	* cfgexpand.c (expand_asm_loc): Pass new parameter.
	(expand_asm_stmt): Likewise.
	* config/arm/aarch-common-protos.h (arm_md_asm_adjust): Add new
	parameter.
	* config/arm/aarch-common.c (arm_md_asm_adjust): Likewise.
	* config/arm/arm.c (thumb1_md_asm_adjust): Likewise.
	* config/cris/cris.c (cris_md_asm_adjust): Likewise.
	* config/i386/i386.c (ix86_md_asm_adjust): Likewise.
	* config/mn10300/mn10300.c (mn10300_md_asm_adjust): Likewise.
	* config/nds32/nds32.c (nds32_md_asm_adjust): Likewise.
	* config/pdp11/pdp11.c (pdp11_md_asm_adjust): Likewise.
	* config/rs6000/rs6000.c (rs6000_md_asm_adjust): Likewise.
	* config/vax/vax.c (vax_md_asm_adjust): Likewise.
	* config/visium/visium.c (visium_md_asm_adjust): Likewise.
	* doc/tm.texi (md_asm_adjust): Likewise.
	* target.def (md_asm_adjust): Likewise.

2021-03-04  Richard Biener  <rguenther@suse.de>

	PR middle-end/97855
	* tree-pretty-print.c: Poison pp_printf.
	(dump_decl_name): Avoid use of pp_printf.
	(dump_block_node): Likewise.
	(dump_generic_node): Likewise.

2021-03-04  Martin Sebor  <msebor@redhat.com>

	PR middle-end/96963
	PR middle-end/94655
	* builtins.c (handle_array_ref): New helper.
	(handle_mem_ref): New helper.
	(compute_objsize_r): Factor out ARRAY_REF and MEM_REF handling
	into new helper functions.  Correct a workaround for vectorized
	assignments.

2021-03-03  Pat Haugen  <pthaugen@linux.ibm.com>

	* config/rs6000/dfp.md (extendddtd2, trunctddd2, *cmp<mode>_internal1,
	floatditd2, ftrunc<mode>2, fix<mode>di2, dfp_ddedpd_<mode>,
	dfp_denbcd_<mode>, dfp_dxex_<mode>, dfp_diex_<mode>,
	*dfp_sgnfcnc_<mode>, dfp_dscli_<mode>, dfp_dscri_<mode>): Update size
	attribute for Power10.
	* config/rs6000/mma.md (*movoo): Likewise.
	* config/rs6000/rs6000.md (define_attr "size"): Add 256.
	(define_mode_attr bits): Add DD/TD modes.
	* config/rs6000/sync.md (load_quadpti, store_quadpti, load_lockedpti,
	store_conditionalpti): Update size attribute for Power10.

2021-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR bootstrap/92002
	* config/sparc/t-sparc (tree-ssanames.o-warn): Don't error for
	-Wuninitialized, -Wmaybe-uninitialized.
	(wide-int.o-warn): Likewise.

2021-03-03  Richard Earnshaw  <rearnsha@arm.com>

	* common/config/arm/arm-common.c: Include configargs.h.
	(arm_config_default): New function.
	(arm_target_mode): Renamed from arm_target_thumb_only.  Handle
	processors that do not support Thumb.  Take into account the
	--with-mode configuration setting for selecting the default.
	* config/arm/arm.h (OPTION_DEFAULT_SPECS): Remove entry for 'mode'.
	(TARGET_MODE_SPEC_FUNCTIONS): Update for function name change.

2021-03-03  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/97461
	* gcov-io.h (GCOV_PREALLOCATED_KVP): Remove.

2021-03-03  Eric Botcazou  <ebotcazou@adacore.com>

	PR target/99234
	* config/i386/i386.c (ix86_compute_frame_layout): For a SEH target,
	point back the hard frame pointer to its default location when the
	frame is larger than SEH_MAX_FRAME_SIZE.

2021-03-03  Jakub Jelinek  <jakub@redhat.com>

	PR target/99321
	* config/i386/predicates.md (logic_operator): New define_predicate.
	* config/i386/i386.md (mov + mem using comm arith peephole2):
	Punt if operands[1] is EXT_REX_SSE_REGNO_P, AVX512BW is not enabled
	and the inner mode is [QH]Imode.

2021-03-03  Jakub Jelinek  <jakub@redhat.com>

	PR debug/99090
	* dwarf2out.c (dw_loc_list_struct): Add end_entry member.
	(new_loc_list): Clear end_entry.
	(output_loc_list): Only use DW_LLE_startx_length for -gsplit-dwarf
	if HAVE_AS_LEB128, otherwise use DW_LLE_startx_endx.  Fix comment
	typo.
	(index_location_lists): For dwarf_version >= 5 without HAVE_AS_LEB128,
	initialize also end_entry.

2021-03-03  Jakub Jelinek  <jakub@redhat.com>

	PR target/99085
	* cfgrtl.c (fixup_partitions): When changing some bbs from hot to cold
	partitions, if in non-layout mode after reorder_blocks also move
	affected blocks to ensure a single partition transition.

2021-03-03  Jason Merrill  <jason@redhat.com>

	PR c++/96078
	* cgraphunit.c (process_function_and_variable_attributes): Don't
	warn about flatten on an alias if the target also has it.
	* cgraph.h (symtab_node::get_alias_target_tree): New.

2021-03-02  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/rs6000.md (tls_get_tpointer_internal): Prepend
	period to symbol name.
	(tls_get_addr_internal<mode>): Same.

2021-03-02  David Malcolm  <dmalcolm@redhat.com>

	PR c/99323
	* diagnostic-show-locus.c
	(selftest::test_one_liner_many_fixits_2): Fix accidental usage of
	column 0.

2021-03-02  Martin Sebor  <msebor@redhat.com>

	PR middle-end/99276
	* builtins.c (warn_for_access): Remove stray warning text.

2021-03-02  Martin Sebor  <msebor@redhat.com>

	PR middle-end/99295
	* doc/extend.texi (attribute malloc): Reword and clarify nonaliasing
	property.

2021-03-02  Jakub Jelinek  <jakub@redhat.com>

	PR debug/99319
	* dwarf2out.c (output_macinfo_op): Use DW_MACRO_*_str* even with
	-gdwarf-5 -gstrict-dwarf.  For -gsplit-dwarf -gdwarf-5 use
	DW_MACRO_*_strx instead of DW_MACRO_*_strp.  Handle
	DW_MACRO_define_strx and DW_MACRO_undef_strx.
	(save_macinfo_strings): Use DW_MACRO_*_str* even with
	-gdwarf-5 -gstrict-dwarf.  Handle DW_MACRO_define_strx and
	DW_MACRO_undef_strx.

2021-03-02  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/s390-builtin-types.def (BT_FN_V4SF_V8HI_UINT): New
	builtin signature.
	(BT_FN_V8HI_V8HI_UINT): Likewise.
	(BT_FN_V8HI_V4SF_V4SF_UINT): Likewise.
	* config/s390/s390-builtins.def (B_NNPA): New macro definition.
	(s390_vclfnhs, s390_vclfnls, s390_vcrnfs, s390_vcfn, s390_vcnf):
	New builtin definitions.
	* config/s390/s390-c.c (s390_cpu_cpp_builtins_internal): Bump
	vector extension version.
	* config/s390/s390.c (s390_expand_builtin): Check if builtins are
	available with current -march level.
	* config/s390/s390.md (UNSPEC_NNPA_VCLFNHS_V8HI)
	(UNSPEC_NNPA_VCLFNLS_V8HI, UNSPEC_NNPA_VCRNFS_V8HI)
	(UNSPEC_NNPA_VCFN_V8HI, UNSPEC_NNPA_VCNF_V8HI): New constants.
	* config/s390/vecintrin.h (vec_extend_to_fp32_hi): New macro.
	(vec_extend_to_fp32_lo): Likewise.
	(vec_round_from_fp32): Likewise.
	(vec_convert_to_fp16): Likewise.
	(vec_convert_from_fp16): Likewise.
	* config/s390/vx-builtins.md (vclfnhs_v8hi): New insn pattern.
	(vclfnls_v8hi): Likewise.
	(vcrnfs_v8hi): Likewise.
	(vcfn_v8hi): Likewise.
	(vcnf_v8hi): Likewise.

2021-03-02  Andreas Krebbel  <krebbel@linux.ibm.com>

	* common/config/s390/s390-common.c (processor_flags_table): New entry.
	* config.gcc: Enable arch14 for --with-arch and --with-tune.
	* config/s390/driver-native.c (s390_host_detect_local_cpu): Pick
	arch14 for unknown CPU models.
	* config/s390/s390-opts.h (enum processor_type): Add PROCESSOR_ARCH14.
	* config/s390/s390.c (s390_issue_rate): Add case for PROCESSOR_ARCH14.
	(s390_get_sched_attrmask): Likewise.
	(s390_get_unit_mask): Likewise.
	* config/s390/s390.h (enum processor_flags): Add PF_NNPA and PF_ARCH14.
	(TARGET_CPU_ARCH14, TARGET_CPU_ARCH14_P, TARGET_CPU_NNPA)
	(TARGET_CPU_NNPA_P, TARGET_ARCH14, TARGET_ARCH14_P, TARGET_NNPA)
	(TARGET_NNPA_P): New macro definitions.
	* config/s390/s390.md ("cpu_facility", "enabled"): Add arch14 and nnpa.
	* config/s390/s390.opt: Add PROCESSOR_ARCH14.

2021-03-02  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/95757
	* tree-vrp.c (register_edge_assert_for): Remove superfluous ()s around
	condition.  Call register_edge_assert_for_1 for == 0, != 0, == 1 and
	!= 1 comparisons if name is lhs of a comparison.

2021-03-01  Iain Sandoe  <iain@sandoe.co.uk>

	PR target/44107
	PR target/48097
	* config/darwin-protos.h (darwin_should_restore_cfa_state): New.
	* config/darwin.c (darwin_should_restore_cfa_state): New.
	* config/darwin.h (TARGET_ASM_SHOULD_RESTORE_CFA_STATE): New.
	* doc/tm.texi: Regenerated.
	* doc/tm.texi.in: Document TARGET_ASM_SHOULD_RESTORE_CFA_STATE.
	* dwarf2cfi.c (connect_traces): If the target requests, restore
	the CFA expression after a DW_CFA_restore.
	* target.def (TARGET_ASM_SHOULD_RESTORE_CFA_STATE): New hook.

2021-03-01  Martin Liska  <mliska@suse.cz>

	PR target/99313
	* optc-save-gen.awk: Add 4 more exceptions.

2021-03-01  Nathan Sidwell  <nathan@acm.org>

	PR c++/99294
	* tree.h (TYPE_ALIGN_RAW): New accessor.
	(TYPE_ALIGN): Use it.

2021-03-01  Jan Hubicka  <jh@suse.cz>

	PR ipa/98338
	* ipa-fnsummary.c (compute_fn_summary): Fix sanity check.

2021-03-01  Eric Botcazou  <ebotcazou@adacore.com>

	PR target/99234
	* config/i386/i386.c (ix86_compute_frame_layout): For a SEH target,
	point the hard frame pointer to the SSE register save area instead
	of the general register save area.  Perform only minimal adjustment
	for small frames if it is initially not correctly aligned.
	(ix86_expand_prologue): Remove early saves for a SEH target.
	* config/i386/winnt.c (struct seh_frame_state): Document constraint.

2021-02-28  Jakub Jelinek  <jakub@redhat.com>

	PR c/99304
	* ipa.c (symbol_table::remove_unreachable_nodes): Fix a comment
	typo - referneced -> referenced.
	* tree.c (component_ref_size): Fix comment typo -
	refernce -> reference.
	* tree-ssa-alias.c (access_path_may_continue_p): Fix comment typo -
	traling -> trailing.
	(aliasing_component_refs_p): Fix comment typos -
	refernce -> reference and refernece -> reference and
	traling -> trailing.
	(nonoverlapping_refs_since_match_p): Fix comment typo -
	referneces -> references.
	* doc/invoke.texi (--param modref-max-bases): Fix a typo -
	referneces -> references.

2021-02-27  Iain Sandoe  <iain@sandoe.co.uk>

	* config/host-darwin.c (darwin_gt_pch_use_address): Modify
	diagnostic message to avoid use of a contraction and format
	warning.

2021-02-27  Jakub Jelinek  <jakub@redhat.com>

	PR other/99288
	* gcse.c (gcse_or_cprop_is_too_expensive): Use %wu instead of
	HOST_WIDE_INT_PRINT_UNSIGNED in warning format string.
	* ipa-devirt.c (ipa_odr_read_section): Use %wd instead of
	HOST_WIDE_INT_PRINT_DEC in inform format string.  Fix comment
	typos.

2021-02-26  Richard Biener  <rguenther@suse.de>

	PR middle-end/99281
	* expr.c (store_field): For calls with return-slot optimization
	and addressable return type expand the store directly.

2021-02-26  Richard Biener  <rguenther@suse.de>

	PR c/99275
	* builtins.c (warn_string_no_nul): Fix diagnostic formatting.

2021-02-26  Peter Bergner  <bergner@linux.ibm.com>

	PR target/99279
	* config/rs6000/rs6000-call.c (rs6000_init_builtins): Replace assert
	with an "if" test.

2021-02-26  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config.gcc: Add rs6000-pcrel-opt.o.
	* config/rs6000/rs6000-pcrel-opt.c: New file.
	* config/rs6000/pcrel-opt.md: New file.
	* config/rs6000/predicates.md: Add d_form_memory predicate.
	* config/rs6000/rs6000-cpus.def: Add OPTION_MASK_PCREL_OPT.
	* config/rs6000/rs6000-passes.def: Add pass_pcrel_opt.
	* config/rs6000/rs6000-protos.h: Add reg_to_non_prefixed(),
	pcrel_opt_valid_mem_p(), output_pcrel_opt_reloc(),
	and make_pass_pcrel_opt().
	* config/rs6000/rs6000.c (reg_to_non_prefixed): Make global.
	(rs6000_option_override_internal): Add pcrel-opt.
	(rs6000_delegitimize_address): Support pcrel-opt.
	(rs6000_opt_masks): Add pcrel-opt.
	(pcrel_opt_valid_mem_p): New function.
	(reg_to_non_prefixed): Make global.
	(rs6000_asm_output_opcode): Reset prepend_p_to_next_insn.
	(output_pcrel_opt_reloc): New function.
	* config/rs6000/rs6000.md (loads_extern_addr): New attr.
	(pcrel_extern_addr): Set loads_extern_addr.
	Add include for pcrel-opt.md.
	* config/rs6000/rs6000.opt: Add -mpcrel-opt.
	* config/rs6000/t-rs6000: Add rules for pcrel-opt.c and
	pcrel-opt.md.

2021-02-26  YunQiang Su  <yunqiang.su@cipunited.com>

	PR target/98996
	* config/mips/mips.c (mips_expand_ext_as_unaligned_load):
	If TARGET_64BIT and dest is SUBREG, we check the width, if it
	equal to SImode, we use SImode operation, just like what we are
	doing for REG one.

2021-02-26  Marek Polacek  <polacek@redhat.com>

	* builtins.c (warn_for_access): Fix typos.

2021-02-25  Iain Sandoe  <iain@sandoe.co.uk>

	* config/aarch64/aarch64.md (<optab>_rol<mode>3): Add a '#'
	mark in front of the immediate quantity.
	(<optab>_rolsi3_uxtw): Likewise.

2021-02-25  Richard Earnshaw  <rearnsha@arm.com>

	PR target/99271
	* config/arm/thumb2.md (nonsecure_call_reg_thumb2_fpcxt): New pattern.
	(nonsecure_call_value_reg_thumb2_fpcxt): Likewise.
	(nonsecure_call_reg_thumb2): Restrict to using r4 for the callee
	address and disable when the FPCXT is not available.
	(nonsecure_call_value_reg_thumb2): Likewise.

2021-02-25  Nathan Sidwell  <nathan@acm.org>

	PR c++/99166
	* doc/invoke.texi (flang-info-module-cmi): Renamed option.

2021-02-25  Tamar Christina  <tamar.christina@arm.com>

	* tree-vect-slp.c (optimize_load_redistribution_1): Abort on NULL nodes.

2021-02-25  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99253
	* tree-vect-loop.c (check_reduction_path): First compute
	code, then verify out-of-loop uses.

2021-02-25  Jakub Jelinek  <jakub@redhat.com>

	PR target/95798
	* match.pd ((T)(A) + CST -> (T)(A + CST)): Add :s to convert.

2021-02-25  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/80635
	* tree-vrp.c (vrp_simplify_cond_using_ranges): Also handle
	VIEW_CONVERT_EXPR if modes are the same, innerop is integral and
	has mode precision.

2021-02-25  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (optimize_load_redistribution_1): Delay
	load_map population.
	(vect_match_slp_patterns_2): Revert part of last change.
	(vect_analyze_slp): Do not interleave optimize_load_redistribution
	with pattern detection but do it afterwards.  Dump the
	whole SLP graph after pattern recognition and load
	redistribution optimization finished.

2021-02-24  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/99226
	* omp-low.c (struct omp_context): Add teams_nested_p and
	nonteams_nested_p members.
	(scan_omp_target): Diagnose teams nested inside of target with other
	directives strictly nested inside of the same target.
	(check_omp_nesting_restrictions): Set ctx->teams_nested_p or
	ctx->nonteams_nested_p as needed.

2021-02-24  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR inline-asm/99123
	* lra-constraints.c (uses_hard_regs_p): Don't use decompose_mem_address.

2021-02-24  Hans-Peter Nilsson  <hp@axis.com>

	* config/cris/cris.c (cris_expand_prologue): Set
	current_function_static_stack_size, if flag_stack_usage_info.

2021-02-24  Pat Haugen  <pthaugen@linux.ibm.com>

	* config/rs6000/rs6000.c (next_insn_prefixed_p): Rename.
	(rs6000_final_prescan_insn): Adjust.
	(rs6000_asm_output_opcode): Likewise.

2021-02-24  Martin Sebor  <msebor@redhat.com>

	PR middle-end/97172
	* attribs.c (attr_access::free_lang_data): Clear attribute arg spec
	from function arguments.

2021-02-24  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/99220
	* tree-vect-slp.c (optimize_load_redistribution_1): Remove
	node from cache when it's about to be deleted.

2021-02-24  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/99225
	* fold-const.c (fold_binary_loc) <case NE_EXPR>: In (x & (1 << y)) != 0
	to ((x >> y) & 1) != 0 simplifications use build_one_cst instead of
	build_int_cst (..., 1).  Formatting fixes.

2021-02-24  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/99149
	* tree-vect-slp-patterns.c (vect_detect_pair_op): Don't recreate the
	buffer.
	(vect_slp_reset_pattern): Remove.
	(complex_fma_pattern::matches): Remove call to vect_slp_reset_pattern.
	(complex_mul_pattern::build, complex_fma_pattern::build,
	complex_fms_pattern::build): Fix ref counts.
	* tree-vect-slp.c (vect_free_slp_tree): Undo SLP only pattern relevancy
	when node is being deleted.
	(vect_match_slp_patterns_2): Correct result of cache hit on patterns.
	(vect_schedule_slp): Invalidate SLP_TREE_REPRESENTATIVE of removed
	stores.
	* tree-vectorizer.c (vec_info::new_stmt_vec_info): Initialize value.

2021-02-24  Matthias Klose  <doko@ubuntu.com>

	Revert:
	2020-12-07  Matthias Klose  <doko@ubuntu.com>

	* genextract.c (print_header): Undefine ENABLE_RTL_CHECKING
	and ENABLE_RTL_FLAG_CHECKING.

2021-02-24  Richard Biener  <rguenther@suse.de>

	PR c/99224
	* builtins.c (fold_builtin_next_arg): Avoid NULL arg.

2021-02-23  Peter Bergner  <bergner@linux.ibm.com>

	* config/rs6000/mma.md (mma_assemble_pair): Rename from this...
	(vsx_assemble_pair): ...to this.
	(*mma_assemble_pair): Rename from this...
	(*vsx_assemble_pair): ...to this.
	(mma_disassemble_pair): Rename from this...
	(vsx_disassemble_pair): ...to this.
	(*mma_disassemble_pair): Rename from this...
	(*vsx_disassemble_pair): ...to this.
	* config/rs6000/rs6000-builtin.def (BU_MMA_V2, BU_MMA_V3,
	BU_COMPAT): New macros.
	(mma_assemble_pair): Rename from this...
	(vsx_assemble_pair): ...to this.
	(mma_disassemble_pair): Rename from this...
	(vsx_disassemble_pair): ...to this.
	(mma_assemble_pair): New compatibility built-in.
	(mma_disassemble_pair): Likewise.
	* config/rs6000/rs6000-call.c (struct builtin_compatibility): New.
	(RS6000_BUILTIN_COMPAT): Define.
	(bdesc_compat): New.
	(mma_expand_builtin): Use VSX_BUILTIN_DISASSEMBLE_PAIR_INTERNAL.
	(rs6000_gimple_fold_mma_builtin): Use MMA_BUILTIN_DISASSEMBLE_PAIR
	and VSX_BUILTIN_ASSEMBLE_PAIR.
	(rs6000_init_builtins): Register compatibility built-ins.
	(mma_init_builtins): Use VSX_BUILTIN_ASSEMBLE_PAIR,
	VSX_BUILTIN_ASSEMBLE_PAIR_INTERNAL, VSX_BUILTIN_DISASSEMBLE_PAIR and
	VSX_BUILTIN_DISASSEMBLE_PAIR_INTERNAL.
	* doc/extend.texi (__builtin_mma_assemble_pair): Rename from this...
	(__builtin_vsx_assemble_pair): ...to this.
	(__builtin_mma_disassemble_pair): Rename from this...
	(__builtin_vsx_disassemble_pair): ...to this.

2021-02-23  Martin Liska  <mliska@suse.cz>

	PR sanitizer/99168
	* ipa-icf.c (sem_variable::merge): Do not merge 2 variables
	with different alignment. That leads to an invalid red zone
	size allocated in runtime.

2021-02-23  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/99204
	* fold-const.c (fold_read_from_constant_string): Check that
	tree_fits_uhwi_p (index) rather than just that index is INTEGER_CST.

2021-02-23  Segher Boessenkool  <segher@kernel.crashing.org>
	    Kewen Lin  <linkw@gcc.gnu.org>

	* config/rs6000/rs6000.md (*rotl<mode>3_insert_3): Renamed to...
	(rotl<mode>3_insert_3): ...this.
	(plus_ior_xor): New code_iterator.
	(define_split for GPR rl*imi): New splitter.
	* config/rs6000/vsx.md (vsx_init_v4si): Use gen_rotldi3_insert_3
	for integer merging.

2021-02-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-tuning-flags.def (cse_sve_vl_constants):
	Define.
	* config/aarch64/aarch64.md (add<mode>3): Force CONST_POLY_INT immediates
	into a register when the above is enabled.
	* config/aarch64/aarch64.c (neoversev1_tunings):
	AARCH64_EXTRA_TUNE_CSE_SVE_VL_CONSTANTS.
	(aarch64_rtx_costs): Use AARCH64_EXTRA_TUNE_CSE_SVE_VL_CONSTANTS.

2021-02-22  Hans-Peter Nilsson  <hp@axis.com>

	* config/cris/cris.c (cris_print_operand) <'T'>: Change
	valid operand from is now an addi mult-value to shift-value.
	* config/cris/cris.md (*addi): Change expression of scaled
	operand from mult to ashift.
	* config/cris/cris.md (*addi_reload): New insn_and_split.

2021-02-22  John David Anglin  <danglin@gcc.gnu.org>

	PR target/85074
	* config/pa/pa.c (TARGET_ASM_CAN_OUTPUT_MI_THUNK): Define as
	hook_bool_const_tree_hwi_hwi_const_tree_true.
	(pa_asm_output_mi_thunk): Add support for nonzero vcall_offset.

2021-02-22  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	PR rtl-optimization/98791
	* ira-conflicts.c (process_regs_for_copy): Don't create allocno copies
	for unordered modes.

2021-02-22  Martin Liska  <mliska@suse.cz>

	* tree-inline.c (inline_forbidden_p): Set
	inline_forbidden_reason.

2021-02-22  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (vect_bb_vectorization_profitable_p): Dump
	costed subgraph.

2021-02-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99165
	* gimple-ssa-store-merging.c (pass_store_merging::process_store):
	Accumulate changed to ret.

2021-02-21  Uros Bizjak  <ubizjak@gmail.com>

	Revert:
	2020-12-09  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.h (REG_ALLOC_ORDER): Remove

2021-02-20  Ilya Leoshkevich  <iii@linux.ibm.com>

	PR target/99134
	* config/s390/vector.md (trunctf<DFP_ALL:mode>2_vr): New
	pattern.
	(trunctf<DFP_ALL:mode>2): Likewise.
	(trunctdtf2_vr): Likewise.
	(trunctdtf2): Likewise.
	(extend<DFP_ALL:mode>tf2_vr): Likewise.
	(extend<DFP_ALL:mode>tf2): Likewise.
	(extendtftd2_vr): Likewise.
	(extendtftd2): Likewise.

2021-02-20  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/vector.md (*fprx2_to_tf): Rename to fprx2_to_tf,
	add memory alternative.
	(tf_to_fprx2): New pattern.

2021-02-19  Martin Sebor  <msebor@redhat.com>

	PR c/97172
	* attribs.c (init_attr_rdwr_indices): Guard vblist use.
	(attr_access::free_lang_data): Remove a spurious test.

2021-02-19  Nathan Sidwell  <nathan@acm.org>

	* doc/invoke.texi (flang-info-module-read): Document.

2021-02-19  Martin Liska  <mliska@suse.cz>

	PR translation/99167
	* params.opt: Fix typo.

2021-02-19  Richard Biener  <rguenther@suse.de>

	PR middle-end/99122
	* tree-inline.c (inline_forbidden_p): Do not inline functions
	with VLA arguments or return value.

2021-02-19  Jakub Jelinek  <jakub@redhat.com>

	PR target/98998
	* config/arm/arm.md (*stack_protect_combined_set_insn,
	*stack_protect_combined_test_insn): If force_const_mem result
	is not valid general operand, force its address into the destination
	register first.

2021-02-19  Jakub Jelinek  <jakub@redhat.com>

	PR ipa/99034
	* tree-cfg.c (gimple_merge_blocks): If bb a starts with eh landing
	pad or non-local label, put FORCED_LABELs from bb b after that label
	rather than before it.

2021-02-19  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	PR target/98657
	* config/aarch64/aarch64-sve.md (<ASHIFT:optab><mode>3): Use
	expand_vector_broadcast' to emit the vec_duplicate operand.

2021-02-18  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/96264
	* lra-remat.c (reg_overlap_for_remat_p): Check also output insn
	hard regs.

2021-02-18  H.J. Lu  <hjl.tools@gmail.com>

	PR target/99113
	* varasm.c (get_section): Replace SUPPORTS_SHF_GNU_RETAIN with
	looking up the retain attribute.
	(resolve_unique_section): Likewise.
	(get_variable_section): Likewise.
	(switch_to_section): Likewise.  Warn when a symbol without the
	retain attribute and a symbol with the retain attribute are
	placed in the section with the same name, instead of the used
	attribute.
	* doc/extend.texi: Document the "retain" attribute.

2021-02-18  Nathan Sidwell  <nathan@acm.org>

	PR c++/99023
	* doc/invoke.texi (flang-info-include-translate): Document header
	lookup behaviour.

2021-02-18  Richard Biener  <rguenther@suse.de>

	PR middle-end/99122
	* ipa-fnsummary.c (analyze_function_body): Set
	CIF_FUNCTION_NOT_INLINABLE for VLA parameter calls.
	* tree-inline.c (insert_init_debug_bind): Pass NULL for
	error_mark_node values.
	(force_value_to_type): Do not build V_C_Es for WITH_SIZE_EXPR
	values.
	(setup_one_parameter): Delay force_value_to_type until when
	it's needed.

2021-02-18  Hans-Peter Nilsson  <hp@axis.com>

	PR tree-optimization/99142
	* match.pd (clz cmp 0): Gate replacement on single_use of clz result.

2021-02-18  Jakub Jelinek  <jakub@redhat.com>

	* wide-int-bitmask.h (wide_int_bitmask::wide_int_bitmask (),
	wide_int_bitmask::wide_int_bitmask (uint64_t),
	wide_int_bitmask::wide_int_bitmask (uint64_t, uint64_t),
	wide_int_bitmask::operator ~ () const,
	wide_int_bitmask::operator | (wide_int_bitmask) const,
	wide_int_bitmask::operator & (wide_int_bitmask) const): Use constexpr
	instead of inline.
	* config/i386/i386.h (PTA_3DNOW, PTA_3DNOW_A, PTA_64BIT, PTA_ABM,
	PTA_AES, PTA_AVX, PTA_BMI, PTA_CX16, PTA_F16C, PTA_FMA, PTA_FMA4,
	PTA_FSGSBASE, PTA_LWP, PTA_LZCNT, PTA_MMX, PTA_MOVBE, PTA_NO_SAHF,
	PTA_PCLMUL, PTA_POPCNT, PTA_PREFETCH_SSE, PTA_RDRND, PTA_SSE, PTA_SSE2,
	PTA_SSE3, PTA_SSE4_1, PTA_SSE4_2, PTA_SSE4A, PTA_SSSE3, PTA_TBM,
	PTA_XOP, PTA_AVX2, PTA_BMI2, PTA_RTM, PTA_HLE, PTA_PRFCHW, PTA_RDSEED,
	PTA_ADX, PTA_FXSR, PTA_XSAVE, PTA_XSAVEOPT, PTA_AVX512F, PTA_AVX512ER,
	PTA_AVX512PF, PTA_AVX512CD, PTA_NO_TUNE, PTA_SHA, PTA_PREFETCHWT1,
	PTA_CLFLUSHOPT, PTA_XSAVEC, PTA_XSAVES, PTA_AVX512DQ, PTA_AVX512BW,
	PTA_AVX512VL, PTA_AVX512IFMA, PTA_AVX512VBMI, PTA_CLWB, PTA_MWAITX,
	PTA_CLZERO, PTA_NO_80387, PTA_PKU, PTA_AVX5124VNNIW, PTA_AVX5124FMAPS,
	PTA_AVX512VPOPCNTDQ, PTA_SGX, PTA_AVX512VNNI, PTA_GFNI, PTA_VAES,
	PTA_AVX512VBMI2, PTA_VPCLMULQDQ, PTA_AVX512BITALG, PTA_RDPID,
	PTA_PCONFIG, PTA_WBNOINVD, PTA_AVX512VP2INTERSECT, PTA_PTWRITE,
	PTA_AVX512BF16, PTA_WAITPKG, PTA_MOVDIRI, PTA_MOVDIR64B, PTA_ENQCMD,
	PTA_CLDEMOTE, PTA_SERIALIZE, PTA_TSXLDTRK, PTA_AMX_TILE, PTA_AMX_INT8,
	PTA_AMX_BF16, PTA_UINTR, PTA_HRESET, PTA_KL, PTA_WIDEKL, PTA_AVXVNNI,
	PTA_X86_64_BASELINE, PTA_X86_64_V2, PTA_X86_64_V3, PTA_X86_64_V4,
	PTA_CORE2, PTA_NEHALEM, PTA_WESTMERE, PTA_SANDYBRIDGE, PTA_IVYBRIDGE,
	PTA_HASWELL, PTA_BROADWELL, PTA_SKYLAKE, PTA_SKYLAKE_AVX512,
	PTA_CASCADELAKE, PTA_COOPERLAKE, PTA_CANNONLAKE, PTA_ICELAKE_CLIENT,
	PTA_ICELAKE_SERVER, PTA_TIGERLAKE, PTA_SAPPHIRERAPIDS, PTA_ALDERLAKE,
	PTA_KNL, PTA_BONNELL, PTA_SILVERMONT, PTA_GOLDMONT, PTA_GOLDMONT_PLUS,
	PTA_TREMONT, PTA_KNM): Use constexpr instead of const.

2021-02-18  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/99109
	* gimple-array-bounds.cc (build_zero_elt_array_type): Rename to ...
	(build_printable_array_type): ... this.  Add nelts argument.  For
	overaligned eltype, use TYPE_MAIN_VARIANT (eltype) instead.  If
	nelts, call build_array_type_nelts.
	(array_bounds_checker::check_mem_ref): Use build_printable_array_type
	instead of build_zero_elt_array_type and build_array_type_nelts.

2021-02-18  Jakub Jelinek  <jakub@redhat.com>

	PR target/99104
	* config/i386/i386.c (distance_non_agu_define): Don't call
	extract_insn_cached here.
	(ix86_lea_outperforms): Save and restore recog_data around call
	to distance_non_agu_define and distance_agu_use.
	(ix86_ok_to_clobber_flags): Remove.
	(ix86_avoid_lea_for_add): Don't call ix86_ok_to_clobber_flags.
	(ix86_avoid_lea_for_addr): Likewise.  Adjust function comment.
	* config/i386/i386.md (*lea<mode>): Change from define_insn_and_split
	into define_insn.  Move the splitting to define_peephole2 and
	check there using peep2_regno_dead_p if FLAGS_REG is dead.

2021-02-17  Julian Brown  <julian@codesourcery.com>

	* gimplify.c (gimplify_scan_omp_clauses): Handle ATTACH_DETACH
	for non-decls.

2021-02-17  Xi Ruoyao  <xry111@mengyan1223.wang>

	PR target/98491
	* config/mips/mips.c (mips_symbol_insns): Do not use
	MSA_SUPPORTED_MODE_P if mode is MAX_MACHINE_MODE.

2021-02-16  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR inline-asm/98096
	* stmt.c (resolve_operand_name_1): Take inout operands into account
	for access to labels by names.
	* doc/extend.texi: Describe counting operands for accessing labels.

2021-02-16  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/38474
	* tree-ssa-structalias.c (variable_info::address_taken): New.
	(new_var_info): Initialize address_taken.
	(process_constraint): Set address_taken.
	(solve_constraints): Use the new address_taken flag rather
	than is_reg_var for sorting variables.
	(dump_constraint): Dump the variable number if the name
	is just NULL.

2021-02-16  Jakub Jelinek  <jakub@redhat.com>

	PR target/99100
	* tree-vect-stmts.c (vectorizable_simd_clone_call): For num_calls != 1
	multiply by 4096 and for inbranch by 8192.
	* config/i386/i386.c (ix86_simd_clone_usable): For TARGET_AVX512F,
	return 3, 2 or 1 for mangle letters 'b', 'c' or 'd'.

2021-02-15  Maya Rashish  <coypu@sdf.org>

	* config/aarch64/aarch64.c (aarch64_init_builtins):
	Call SUBTARGET_INIT_BUILTINS.

2021-02-15  Peter Bergner  <bergner@linux.ibm.com>

	PR rtl-optimization/98872
	* init-regs.c (initialize_uninitialized_regs): Skip initialization
	if CONST0_RTX is NULL.

2021-02-15  Richard Sandiford  <richard.sandiford@arm.com>

	PR rtl-optimization/98863
	* rtl-ssa/functions.h (function_info::bb_live_out_info): Delete.
	(function_info::build_info): Turn into a declaration, moving the
	definition to internals.h.
	(function_info::bb_walker): Declare.
	(function_info::create_reg_use): Likewise.
	(function_info::calculate_potential_phi_regs): Take a build_info
	parameter.
	(function_info::place_phis, function_info::create_ebbs): Declare.
	(function_info::calculate_ebb_live_in_for_debug): Likewise.
	(function_info::populate_backedge_phis): Delete.
	(function_info::start_block, function_info::end_block): Declare.
	(function_info::populate_phi_inputs): Delete.
	(function_info::m_potential_phi_regs): Move information to build_info.
	* rtl-ssa/internals.h: New file.
	(function_info::bb_phi_info): New class.
	(function_info::build_info): Moved from functions.h.
	Add a constructor and destructor.
	(function_info::build_info::ebb_use): Delete.
	(function_info::build_info::ebb_def): Likewise.
	(function_info::build_info::bb_live_out): Likewise.
	(function_info::build_info::tmp_ebb_live_in_for_debug): New variable.
	(function_info::build_info::potential_phi_regs): Likewise.
	(function_info::build_info::potential_phi_regs_for_debug): Likewise.
	(function_info::build_info::ebb_def_regs): Likewise.
	(function_info::build_info::bb_phis): Likewise.
	(function_info::build_info::bb_mem_live_out): Likewise.
	(function_info::build_info::bb_to_rpo): Likewise.
	(function_info::build_info::def_stack): Likewise.
	(function_info::build_info::old_def_stack_limit): Likewise.
	* rtl-ssa/internals.inl (function_info::build_info::record_reg_def):
	Remove the regno argument.  Push the previous definition onto the
	definition stack where necessary.
	* rtl-ssa/accesses.cc: Include internals.h.
	* rtl-ssa/changes.cc: Likewise.
	* rtl-ssa/blocks.cc: Likewise.
	(function_info::build_info::build_info): Define.
	(function_info::build_info::~build_info): Likewise.
	(function_info::bb_walker): New class.
	(function_info::bb_walker::bb_walker): Define.
	(function_info::add_live_out_use): Convert a logarithmic-complexity
	test into a linear one.  Allow the same definition to be passed
	multiple times.
	(function_info::calculate_potential_phi_regs): Moved from
	functions.cc.  Take a build_info parameter and store the
	information there instead.
	(function_info::place_phis): New function.
	(function_info::add_entry_block_defs): Update call to record_reg_def.
	(function_info::calculate_ebb_live_in_for_debug): New function.
	(function_info::add_phi_nodes): Use bb_phis to decide which
	registers need phi nodes and initialize ebb_def_regs accordingly.
	Do not add degenerate phis here.
	(function_info::add_artificial_accesses): Use create_reg_use.
	Assert that all definitions are listed in the DF LR sets.
	Update call to record_reg_def.
	(function_info::record_block_live_out): Record live-out register
	values in the phis of successor blocks.  Use the live-out set
	when processing the last block in an EBB, instead of always
	using the live-in sets of successor blocks.  AND the live sets
	with the set of registers that have been defined in the EBB,
	rather than with all potential phi registers.  Cope correctly
	with branches back to the start of the current EBB.
	(function_info::start_block): New function.
	(function_info::end_block): Likewise.
	(function_info::populate_phi_inputs): Likewise.
	(function_info::create_ebbs): Likewise.
	(function_info::process_all_blocks): Rewrite into a multi-phase
	process.
	* rtl-ssa/functions.cc: Include internals.h.
	(function_info::calculate_potential_phi_regs): Move to blocks.cc.
	(function_info::init_function_data): Remove caller.
	* rtl-ssa/insns.cc: Include internals.h
	(function_info::create_reg_use): New function.  Lazily any
	degenerate phis needed by the linear RPO view.
	(function_info::record_use): Use create_reg_use.  When processing
	debug uses, use potential_phi_regs and test it before checking
	whether the register is live on entry to the current EBB.  Lazily
	calculate ebb_live_in_for_debug.
	(function_info::record_call_clobbers): Update call to record_reg_def.
	(function_info::record_def): Likewise.

2021-02-15  Martin Liska  <mliska@suse.cz>

	* toplev.c (init_asm_output): Free output of
	gen_command_line_string function.
	(process_options): Likewise.

2021-02-15  Martin Liska  <mliska@suse.cz>

	* params.opt: Add 2 missing Param keywords.

2021-02-15  Eric Botcazou  <ebotcazou@adacore.com>

	* df-core.c (df_worklist_dataflow_doublequeue): Use proper cast.

2021-02-15  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/99079
	* match.pd (A % (pow2pcst << N) -> A & ((pow2pcst << N) - 1)): Remove
	useless tree_nop_conversion_p (type, TREE_TYPE (@3)) check.  Instead
	require both type and TREE_TYPE (@1) to be integral types and either
	type having smaller or equal precision, or TREE_TYPE (@1) being
	unsigned type, or type being signed type.  If TREE_TYPE (@1)
	doesn't have wrapping overflow, perform the subtraction of one in
	unsigned type.

2021-02-14  Jan Hubicka  <hubicka@ucw.cz>
	    Richard Biener  <rguether@suse.de>

	PR ipa/97346
	* ipa-reference.c (ipa_init): Only conditinally initialize
	reference_vars_to_consider.
	(propagate): Conditionally deninitialize reference_vars_to_consider.
	(ipa_reference_write_optimization_summary): Sanity check that
	reference_vars_to_consider is not allocated.

2021-02-13  Levy Hsu  <admin@levyhsu.com>

	PR target/97417
	* config/riscv/riscv-shorten-memrefs.c (pass_shorten_memrefs): Add
	extend parameter to get_si_mem_base_reg declaration.
	(get_si_mem_base_reg): Add extend parameter.  Set it.
	(analyze): Pass extend arg to get_si_mem_base_reg.
	(transform): Likewise.  Use it when rewriting mems.
	* config/riscv/riscv.c (riscv_legitimize_move): Check for subword
	loads and emit sign/zero extending load followed by subreg move.

2021-02-13  Jim Wilson  <jimw@sifive.com>

	PR target/97417
	* config/riscv/riscv.c (riscv_compressed_lw_address_p): Drop early
	exit when !reload_completed.  Only perform check for compressed reg
	if reload_completed.
	(riscv_rtx_costs): In MEM case, when optimizing	for size and
	shorten memrefs, if not compressible, then increase cost.

2021-02-13  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/98439
	* recog.c (pass_split_before_regstack::gate): Enable even when
	pass_split_before_sched2 is enabled if -fselective-scheduling2 is
	on.

2021-02-13  Jakub Jelinek  <jakub@redhat.com>

	PR target/96166
	* config/i386/mmx.md (*mmx_pshufd_1): Add a combine splitter for
	swap of V2SImode elements in memory into DImode memory rotate by 32.

2021-02-12  Martin Sebor  <msebor@redhat.com>

	* tree-pretty-print.c (print_generic_expr_to_str): Update comment.

2021-02-12  Richard Sandiford  <richard.sandiford@arm.com>

	* rtl-ssa/accesses.cc (function_info::make_use_available): Use
	m_temp_obstack rather than m_obstack to allocate the temporary use.

2021-02-12  Richard Sandiford  <richard.sandiford@arm.com>

	* df-problems.c (df_lr_bb_local_compute): Treat partial definitions
	as read-modify operations.

2021-02-12  Richard Biener  <rguenther@suse.de>

	PR middle-end/38474
	* ipa-fnsummary.c (unmodified_parm_1): Only walk when
	fbi->aa_walk_budget is bigger than zero.  Update
	fbi->aa_walk_budget.
	(param_change_prob): Likewise.
	* ipa-prop.c (detect_type_change_from_memory_writes):
	Properly account walk_aliased_vdefs.
	(parm_preserved_before_stmt_p): Canonicalize updates.
	(parm_ref_data_preserved_p): Likewise.
	(parm_ref_data_pass_through_p): Likewise.
	(determine_known_aggregate_parts): Account own alias queries.

2021-02-12  Martin Liska  <mliska@suse.cz>

	* opts-common.c (decode_cmdline_option): Release werror_arg.
	* opts.c (gen_producer_string): Release output of
	gen_command_line_string.

2021-02-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/38474
	* params.opt (-param=max-store-chains-to-track=): New param.
	(-param=max-stores-to-track=): Likewise.
	* doc/invoke.texi (max-store-chains-to-track): Document.
	(max-stores-to-track): Likewise.
	* gimple-ssa-store-merging.c (pass_store_merging::m_n_chains):
	New.
	(pass_store_merging::m_n_stores): Likewise.
	(pass_store_merging::terminate_and_process_chain): Update
	m_n_stores and m_n_chains.
	(pass_store_merging::process_store): Likewise.   Terminate
	oldest chains if the number of stores or chains get too large.
	(imm_store_chain_info::terminate_and_process_chain): Dump
	chain length.

2021-02-11  Eric Botcazou  <ebotcazou@adacore.com>

	* config/i386/winnt.c (i386_pe_seh_unwind_emit): When switching to
	the cold section, emit a nop before the directive if the previous
	active instruction can throw.

2021-02-11  Peter Bergner  <bergner@linux.ibm.com>

	PR target/99041
	* config/rs6000/predicates.md (mma_assemble_input_operand): Restrict
	memory addresses that are legal for quad word accesses.

2021-02-11  Andrea Corallo  <andrea.corallo@arm.com>

	PR target/98931
	* config/arm/thumb2.md (*doloop_end_internal): Generate
	alternative sequence to handle long range branches.

2021-02-11  Joel Hutton  <joel.hutton@arm.com>

	PR tree-optimization/98772
	* optabs-tree.c (supportable_half_widening_operation): New function
	to check for supportable V8QI->V8HI widening patterns.
	* optabs-tree.h (supportable_half_widening_operation): New function.
	* tree-vect-stmts.c (vect_create_half_widening_stmts): New function
	to create promotion stmts for V8QI->V8HI widening patterns.
	(vectorizable_conversion): Add case for V8QI->V8HI.

2021-02-11  Richard Biener  <rguenther@suse.de>

	* sparseset.h (SPARSESET_ELT_BITS): Remove.
	(SPARSESET_ELT_TYPE): Use unsigned int.
	* fwprop.c: Do not include sparseset.h.

2021-02-10  Jakub Jelinek  <jakub@redhat.com>

	PR c++/99035
	* varasm.c (declare_weak): For -fsyntax-only, allow even
	TREE_ASM_WRITTEN function decls.

2021-02-10  Jakub Jelinek  <jakub@redhat.com>

	PR target/99025
	* config/i386/sse.md (fix<fixunssuffix>_truncv2sfv2di2,
	<insn>v8qiv8hi2, <insn>v8qiv8si2, <insn>v4qiv4si2, <insn>v4hiv4si2,
	<insn>v8qiv8di2, <insn>v4qiv4di2, <insn>v2qiv2di2, <insn>v4hiv4di2,
	<insn>v2hiv2di2, <insn>v2siv2di2): Force operands[1] into REG before
	calling simplify_gen_subreg on it.

2021-02-10  Martin Liska  <mliska@suse.cz>

	* config/nvptx/nvptx.c (nvptx_option_override): Use
	flag_patchable_function_entry instead of the removed
	function_entry_patch_area_size.

2021-02-10  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/99002
	PR tree-optimization/99026
	* gimple-if-to-switch.cc (if_chain::is_beneficial): Fix memory
	leak when adjacent cases are merged.
	* tree-switch-conversion.c (switch_decision_tree::analyze_switch_statement): Use
	release_clusters.
	(make_pass_lower_switch): Remove trailing whitespace.
	* tree-switch-conversion.h (release_clusters): New.

2021-02-10  Richard Biener  <rguenther@suse.de>

	PR rtl-optimization/99054
	* cfgrtl.c (rtl-optimization/99054): Return an auto_vec.
	(fixup_partitions): Adjust.
	(rtl_verify_edges): Likewise.

2021-02-10  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/99007
	* gimplify.c (gimplify_scan_omp_clauses): For MEM_REF on reductions,
	temporarily disable gimplify_ctxp->into_ssa around gimplify_expr
	calls.

2021-02-10  Richard Biener  <rguenther@suse.de>

	PR ipa/99029
	* ipa-pure-const.c (propagate_malloc): Use an auto_vec<>
	for callees.

2021-02-10  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99024
	* tree-vect-loop.c (_loop_vec_info::~_loop_vec_info): Only
	clear loop->aux if it is associated with the destroyed loop_vinfo.

2021-02-10  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/99002
	* gimple-if-to-switch.cc (find_conditions): Fix memory leak
	in the function.

2021-02-10  Martin Liska  <mliska@suse.cz>

	PR ipa/99003
	* ipa-icf.c (sem_item::add_reference): Fix memory leak when
	a reference exists.

2021-02-10  Jakub Jelinek  <jakub@redhat.com>

	PR debug/98755
	* dwarf2out.c (prune_unused_types_walk): Mark DW_TAG_variable DIEs
	at class scope for DWARF5+.

2021-02-09  Eric Botcazou  <ebotcazou@adacore.com>

	PR rtl-optimization/96015
	* reorg.c (skip_consecutive_labels): Minor comment tweaks.
	(relax_delay_slots): When deleting a jump to the next active
	instruction over a barrier, first delete the barrier if the
	jump is the only way to reach the target label.

2021-02-09  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/aarch64/aarch64-cost-tables.h: Add entries for vect.mul.
	* config/aarch64/aarch64.c (aarch64_rtx_mult_cost): Use vect.mul for
	vector multiplies and vect.alu for SSRA.
	* config/arm/aarch-common-protos.h (struct vector_cost_table): Define
	vect.mul cost field.
	* config/arm/aarch-cost-tables.h: Add entries for vect.mul.
	* config/arm/arm.c: Likewise.

2021-02-09  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98863
	* tree-ssa-sccvn.h (vn_avail::next_undo): Add.
	* tree-ssa-sccvn.c (last_pushed_avail): New global.
	(rpo_elim::eliminate_push_avail): Chain pushed avails.
	(unwind_state::avail_top): Add.
	(do_unwind): Rewrite unwinding of avail entries.
	(do_rpo_vn): Initialize last_pushed_avail and
	avail_top of the undo state.

2021-02-09  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/99004
	* calls.c (maybe_warn_rdwr_sizes): Change s0 and s1 type from
	const char * to char * and free those pointers after use.

2021-02-09  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99017
	* tree-vect-slp.c (vect_bb_vectorization_profitable_p): Allow
	zero vector cost entries.

2021-02-08  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	PR middle-end/98974
	* tree-vect-stmts.c (vectorizable_condition): Remove shadow vec_num
	parameter in vectorizable_condition.

2021-02-08  Richard Biener  <rguenther@suse.de>

	PR lto/96591
	* tree.c (walk_tree_1): Walk VECTOR_CST elements.

2021-02-08  Martin Liska  <mliska@suse.cz>

	PR lto/98971
	* cfgexpand.c (pass_expand::execute): Parse per-function option
	flag_patchable_function_entry and use it.
	* common.opt: Remove function_entry_patch_area_size and
	function_entry_patch_area_start global variables.
	* opts.c (parse_and_check_patch_area): New function.
	(common_handle_option): Use it.
	* opts.h (parse_and_check_patch_area): New function.
	* toplev.c (process_options): Parse and use
	function_entry_patch_area_size.

2021-02-08  Martin Sebor  <msebor@redhat.com>

	* doc/extend.texi (attribute malloc): Correct typos.

2021-02-05  Nathan Sidwell  <nathan@acm.org>

	PR driver/98943
	* gcc.c (driver::maybe_run_linker): Check for input file
	accessibility if not linking.

2021-02-05  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98855
	* tree-vectorizer.h (add_stmt_cost): New overload.
	* tree-vect-slp.c (li_cost_vec_cmp): New.
	(vect_bb_slp_scalar_cost): Cost individual loop regions
	separately.  Account for the scalar instance root stmt.

2021-02-05  Tom de Vries  <tdevries@suse.de>

	PR debug/98656
	* tree-switch-conversion.c (jump_table_cluster::emit): Add loc
	argument.
	(bit_test_cluster::emit): Reuse location_t for newly created
	gswitch statement.
	(switch_decision_tree::try_switch_expansion): Preserve
	location_t.
	* tree-switch-conversion.h: Change function signatures.

2021-02-05  Jakub Jelinek  <jakub@redhat.com>

	PR target/98957
	* config/i386/i386-options.c (m_NONE, m_ALL): Define.
	* config/i386/x86-tune.def (X86_TUNE_BRANCH_PREDICTION_HINTS,
	X86_TUNE_PROMOTE_QI_REGS): Use m_NONE instead of 0U.
	(X86_TUNE_QIMODE_MATH): Use m_ALL instead of ~0U.

2021-02-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (get_high): Define builtin.
	* config/aarch64/aarch64-simd.md (aarch64_get_high<mode>): Define.
	* config/aarch64/arm_neon.h (__GET_HIGH): Delete.
	(vget_high_f16): Reimplement using new builtin.
	(vget_high_f32): Likewise.
	(vget_high_f64): Likewise.
	(vget_high_p8): Likewise.
	(vget_high_p16): Likewise.
	(vget_high_p64): Likewise.
	(vget_high_s8): Likewise.
	(vget_high_s16): Likewise.
	(vget_high_s32): Likewise.
	(vget_high_s64): Likewise.
	(vget_high_u8): Likewise.
	(vget_high_u16): Likewise.
	(vget_high_u32): Likewise.
	(vget_high_u64): Likewise.

2021-02-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (get_low): Define builtin.
	* config/aarch64/aarch64-simd.md (aarch64_get_low<mode>): Define.
	* config/aarch64/arm_neon.h (__GET_LOW): Delete.
	(vget_low_f16): Reimplement using new builtin.
	(vget_low_f32): Likewise.
	(vget_low_f64): Likewise.
	(vget_low_p8): Likewise.
	(vget_low_p16): Likewise.
	(vget_low_p64): Likewise.
	(vget_low_s8): Likewise.
	(vget_low_s16): Likewise.
	(vget_low_s32): Likewise.
	(vget_low_s64): Likewise.
	(vget_low_u8): Likewise.
	(vget_low_u16): Likewise.
	(vget_low_u32): Likewise.
	(vget_low_u64): Likewise.

2021-02-05  Kito Cheng  <kito.cheng@sifive.com>

	* gcc.c (print_multilib_info): Check all required argument is provided
	by default arg.

2021-02-05  liuhongt  <hongtao.liu@intel.com>

	PR target/98537
	* config/i386/i386-expand.c (ix86_expand_sse_cmp): Don't
	generate integer mask comparison for 128/256-bits vector when
	op_true/op_false is NULL_RTX or CONSTM1_RTX/CONST0_RTX. Also
	delete redundant !maskcmp condition.
	(ix86_expand_int_vec_cmp): Ditto but no redundant deletion
	here.
	(ix86_expand_sse_movcc): Delete definition of maskcmp, add the
	condition directly to if (maskcmp), add extra check for
	cmpmode, it should be MODE_INT.
	(ix86_expand_fp_vec_cmp): Pass NULL to ix86_expand_sse_cmp's
	parameters op_true/op_false.
	(ix86_use_mask_cmp_p): New.

2021-02-05  liuhongt  <hongtao.liu@intel.com>

	PR target/98172
	* config/i386/x86-tune.def (X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL):
	Remove m_GENERIC from ~list.
	(X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL): Ditto.

2021-02-04  David Malcolm  <dmalcolm@redhat.com>

	PR c/97932
	* diagnostic-show-locus.c (compatible_locations_p): Require
	locations in the same macro map to be either both from the
	macro definition, or both from the macro arguments.

2021-02-04  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add
	[su]mull_hi_lane[q] builtin generator macros.
	* config/aarch64/aarch64-simd.md
	(aarch64_<su>mull_hi_lane<mode>_insn): Define.
	(aarch64_<su>mull_hi_lane<mode>): Define.
	(aarch64_<su>mull_hi_laneq<mode>_insn): Define.
	(aarch64_<su>mull_hi_laneq<mode>): Define.
	* config/aarch64/arm_neon.h (vmull_high_lane_s16): Use RTL
	builtin instead of inline asm.
	(vmull_high_lane_s32): Likewise.
	(vmull_high_lane_u16): Likewise.
	(vmull_high_lane_u32): Likewise.
	(vmull_high_laneq_s16): Likewise.
	(vmull_high_laneq_s32): Likewise.
	(vmull_high_laneq_u16): Likewise.
	(vmull_high_laneq_u32): Liekwise.

2021-02-04  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add [su]mull_hi_n
	builtin generator macros.
	* config/aarch64/aarch64-simd.md
	(aarch64_<su>mull_hi_n<mode>_insn): Define.
	(aarch64_<su>mull_hi_n<mode>): Define.
	* config/aarch64/arm_neon.h (vmull_high_n_s16): Use RTL builtin
	instead of inline asm.
	(vmull_high_n_s32): Likewise.
	(vmull_high_n_u16): Likewise.
	(vmull_high_n_u32): Likewise.

2021-02-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98855
	* tree-vect-loop.c (vectorizable_phi): Do not cost
	single-argument PHIs.
	* tree-vect-slp.c (vect_bb_slp_scalar_cost): Likewise.
	* tree-vect-stmts.c (vectorizable_bswap): Also perform
	costing for SLP operation.

2021-02-04  Martin Liska  <mliska@suse.cz>

	* doc/extend.texi: Mention -mprefer-vector-width in target
	attributes.

2021-02-03  Martin Sebor  <msebor@redhat.com>

	PR tree-optimization/98937
	* tree-ssa-strlen.c (strlen_dom_walker::~strlen_dom_walker): Define.
	Flush pointer_query cache.

2021-02-03  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/genfusion.pl (gen_2logical): Add missing
	fixes based on patch review.
	* config/rs6000/fusion.md: Regenerate file.

2021-02-03  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/t-rs6000: Comment out auto generation of
	fusion.md for now.

2021-02-03  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn-opts.h (enum processor_type): Add PROCESSOR_GFX908.
	* config/gcn/gcn.c (gcn_omp_device_kind_arch_isa): Add gfx908.
	(output_file_start): Add gfx908.
	* config/gcn/gcn.opt (gpu_type): Add gfx908.
	* config/gcn/t-gcn-hsa (MULTILIB_OPTIONS): Add march=gfx908.
	(MULTILIB_DIRNAMES): Add gfx908.
	* config/gcn/mkoffload.c (EF_AMDGPU_MACH_AMDGCN_GFX908): New define.
	(main): Recognize gfx908.
	* config/gcn/t-omp-device: Add gfx908.

2021-02-03  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add
	[su]mlsl_hi_lane[q] builtin macro generators.
	* config/aarch64/aarch64-simd.md
	(aarch64_<su>mlsl_hi_lane<mode>_insn): Define.
	(aarch64_<su>mlsl_hi_lane<mode>): Define.
	(aarch64_<su>mlsl_hi_laneq<mode>_insn): Define.
	(aarch64_<su>mlsl_hi_laneq<mode>): Define.
	* config/aarch64/arm_neon.h (vmlsl_high_lane_s16): Use RTL
	builtin instead of inline asm.
	(vmlsl_high_lane_s32): Likewise.
	(vmlsl_high_lane_u16): Likewise.
	(vmlsl_high_lane_u32): Likewise.
	(vmlsl_high_laneq_s16): Likewise.
	(vmlsl_high_laneq_s32): Likewise.
	(vmlsl_high_laneq_u16): Likewise.
	(vmlsl_high_laneq_u32): Likewise.
	(vmlal_high_laneq_u32): Likewise.

2021-02-03  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add
	[su]mlal_hi_lane[q] builtin generator macros.
	* config/aarch64/aarch64-simd.md
	(aarch64_<su>mlal_hi_lane<mode>_insn): Define.
	(aarch64_<su>mlal_hi_lane<mode>): Define.
	(aarch64_<su>mlal_hi_laneq<mode>_insn): Define.
	(aarch64_<su>mlal_hi_laneq<mode>): Define.
	* config/aarch64/arm_neon.h (vmlal_high_lane_s16): Use RTL
	builtin instead of inline asm.
	(vmlal_high_lane_s32): Likewise.
	(vmlal_high_lane_u16): Likewise.
	(vmlal_high_lane_u32): Likewise.
	(vmlal_high_laneq_s16): Likewise.
	(vmlal_high_laneq_s32): Likewise.
	(vmlal_high_laneq_u16): Likewise.
	(vmlal_high_laneq_u32): Likewise.

2021-02-03  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add [su]mlsl_hi_n
	builtin generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_<su>mlsl_hi_n<mode>_insn):
	Define.
	(aarch64_<su>mlsl_hi_n<mode>): Define.
	* config/aarch64/arm_neon.h (vmlsl_high_n_s16): Use RTL builtin
	instead of inline asm.
	(vmlsl_high_n_s32): Likewise.
	(vmlsl_high_n_u16): Likewise.
	(vmlsl_high_n_u32): Likewise.

2021-02-03  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add [su]mlal_hi_n
	builtin generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_<su>mlal_hi_n<mode>_insn):
	Define.
	(aarch64_<su>mlal_hi_n<mode>): Define.
	* config/aarch64/arm_neon.h (vmlal_high_n_s16): Use RTL builtin
	instead of inline asm.
	(vmlal_high_n_s32): Likewise.
	(vmlal_high_n_u16): Likewise.
	(vmlal_high_n_u32): Likewise.

2021-02-03  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add RTL builtin
	generator macros.
	* config/aarch64/aarch64-simd.md (*aarch64_<su>mlal_hi<mode>):
	Rename to...
	(aarch64_<su>mlal_hi<mode>_insn): This.
	(aarch64_<su>mlal_hi<mode>): Define.
	* config/aarch64/arm_neon.h (vmlal_high_s8): Use RTL builtin
	instead of inline asm.
	(vmlal_high_s16): Likewise.
	(vmlal_high_s32): Likewise.
	(vmlal_high_u8): Likewise.
	(vmlal_high_u16): Likewise.
	(vmlal_high_u32): Likewise.

2021-02-03  Ilya Leoshkevich  <iii@linux.ibm.com>

	* lra-spills.c (remove_pseudos): Call lra_update_insn_recog_data()
	after calling alter_subreg() on a (mem).

2021-02-03  Martin Liska  <mliska@suse.cz>

	PR lto/98912
	* lto-streamer-out.c (produce_lto_section): Fill up missing
	padding.
	* lto-streamer.h (struct lto_section): Add _padding field.

2021-02-03  Richard Biener  <rguenther@suse.de>

	* lto-streamer.c (lto_get_section_name): Free temporary
	buffer.
	* tree-loop-distribution.c
	(loop_distribution::merge_dep_scc_partitions): Free edge data.

2021-02-03  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/97487
	* ifcvt.c (noce_can_force_operand): New function.
	(noce_emit_move_insn): Use it.
	(noce_try_sign_mask): Likewise.  Formatting fix.

2021-02-03  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/97971
	* lra-constraints.c (process_alt_operands): For inline asm, don't call
	fatal_insn, but instead return false.

2021-02-03  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/98287
	* config/i386/mmx.md (<insn><mode>3): For shifts don't enable expander
	for V1DImode.

2021-02-03  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/98928
	* tree-vect-loop.c (vect_analyze_loop_2): Change
	STMT_VINFO_SLP_VECT_ONLY to STMT_VINFO_SLP_VECT_ONLY_PATTERN.
	* tree-vect-slp-patterns.c (complex_pattern::build): Likewise.
	* tree-vectorizer.h (STMT_VINFO_SLP_VECT_ONLY_PATTERN): New.
	(class _stmt_vec_info): Add slp_vect_pattern_only_p.

2021-02-02  Richard Biener  <rguenther@suse.de>

	* gimple-loop-interchange.cc (prepare_data_references):
	Release vectors.
	* gimple-loop-jam.c (tree_loop_unroll_and_jam): Likewise.
	* tree-ssa-loop-im.c (hoist_memory_references): Likewise.
	* tree-vect-stmts.c (vectorizable_condition): Do not
	allocate vectors.
	(vectorizable_comparison): Likewise.

2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (ursqrte): Define builtin.
	* config/aarch64/aarch64-simd.md (aarch64_ursqrte<mode>): New pattern.
	* config/aarch64/arm_neon.h (vrsqrte_u32): Reimplement using builtin.
	(vrsqrteq_u32): Likewise.

2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (sqxtun2): Define builtin.
	* config/aarch64/aarch64-simd.md (aarch64_sqxtun2<mode>_le): Define.
	(aarch64_sqxtun2<mode>_be): Likewise.
	(aarch64_sqxtun2<mode>): Likewise.
	* config/aarch64/arm_neon.h (vqmovun_high_s16): Reimplement using builtin.
	(vqmovun_high_s32): Likewise.
	(vqmovun_high_s64): Likewise.
	* config/aarch64/iterators.md (UNSPEC_SQXTUN2): Define.

2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (bfdot_lane, bfdot_laneq): Use
	AUTO_FP flags.
	(bfmlalb_lane, bfmlalt_lane, bfmlalb_lane_q, bfmlalt_lane_q): Use FP flags.

2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (fcmla_lane0, fcmla_lane90,
	fcmla_lane180, fcmla_lane270, fcmlaq_lane0, fcmlaq_lane90, fcmlaq_lane180,
	fcmlaq_lane270, scvtf, ucvtf, fcvtzs, fcvtzu, scvtfsi, scvtfdi, ucvtfsi,
	ucvtfdi, fcvtzshf, fcvtzuhf, fmlal_lane_low, fmlsl_lane_low,
	fmlal_laneq_low, fmlsl_laneq_low, fmlalq_lane_low, fmlslq_lane_low,
	fmlalq_laneq_low, fmlslq_laneq_low, fmlal_lane_high, fmlsl_lane_high,
	fmlal_laneq_high, fmlsl_laneq_high, fmlalq_lane_high, fmlslq_lane_high,
	fmlalq_laneq_high, fmlslq_laneq_high): Use FP flags.

2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-builtins.c (FLAG_LOAD): Define.
	* config/aarch64/aarch64-simd-builtins.def (ld1x2, ld2, ld3, ld4, ld2r,
	ld3r, ld4r, ld1, ld1x3, ld1x4): Use LOAD flags.

2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (combine, zip1, zip2,
	uzp1, uzp2, trn1, trn2, simd_bsl): Use AUTO_FP flags.

2021-02-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (clrsb, clz, ctz, popcount,
	vec_smult_lane_, vec_smlal_lane_, vec_smult_laneq_, vec_smlal_laneq_,
	vec_umult_lane_, vec_umlal_lane_, vec_umult_laneq_, vec_umlal_laneq_,
	ashl, sshl, ushl, srshl, urshl, sdot_lane, udot_lane, sdot_laneq,
	udot_laneq, usdot_lane, usdot_laneq, sudot_lane, sudot_laneq, ashr,
	ashr_simd, lshr, lshr_simd, srshr_n, urshr_n, ssra_n, usra_n, srsra_n,
	ursra_n, sshll_n, ushll_n, sshll2_n, ushll2_n, ssri_n, usri_n, ssli_n,
	ssli_n, usli_n, bswap, rbit, simd_bsl, eor3q, rax1q, xarq, bcaxq): Use
	NONE builtin flags.

2021-02-02  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/98848
	* tree-vect-patterns.c (vect_recog_over_widening_pattern): Punt if
	STMT_VINFO_DEF_TYPE (last_stmt_info) is vect_reduction_def.

2021-02-02  Kito Cheng  <kito.cheng@sifive.com>

	PR target/98743
	* expr.c: Check mode before calling store_expr.

2021-02-02  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/iterators.md (supf): Remove VORNQ_S and VORNQ_U.
	(VORNQ): Remove.
	* config/arm/mve.md (mve_vornq_s<mode>): New entry for vorn
	instruction using expression ior.
	(mve_vornq_u<mode>): New expander.
	(mve_vornq_f<mode>): Use ior code instead of unspec.
	* config/arm/unspecs.md (VORNQ_S, VORNQ_U, VORNQ_F): Remove.

2021-02-02  Alexandre Oliva  <oliva@adacore.com>

	* tree-nested.c (convert_nonlocal_reference_op): Move
	current_function_decl restore after re-gimplification.
	(convert_local_reference_op): Likewise.

2021-02-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (rshrn, rshrn2):
	Define builtins.
	* config/aarch64/aarch64-simd.md (aarch64_rshrn<mode>_insn_le):
	Define.
	(aarch64_rshrn<mode>_insn_be): Likewise.
	(aarch64_rshrn<mode>): Likewise.
	(aarch64_rshrn2<mode>_insn_le): Likewise.
	(aarch64_rshrn2<mode>_insn_be): Likewise.
	(aarch64_rshrn2<mode>): Likewise.
	* config/aarch64/aarch64.md (unspec): Add UNSPEC_RSHRN.
	* config/aarch64/arm_neon.h (vrshrn_high_n_s16): Reimplement
	using builtin.
	(vrshrn_high_n_s32): Likewise.
	(vrshrn_high_n_s64): Likewise.
	(vrshrn_high_n_u16): Likewise.
	(vrshrn_high_n_u32): Likewise.
	(vrshrn_high_n_u64): Likewise.
	(vrshrn_n_s16): Likewise.
	(vrshrn_n_s32): Likewise.
	(vrshrn_n_s64): Likewise.
	(vrshrn_n_u16): Likewise.
	(vrshrn_n_u32): Likewise.
	(vrshrn_n_u64): Likewise.

2021-02-01  Sergei Trofimovich  <siarheit@google.com>

	PR tree-optimization/98499
	* ipa-modref.c (analyze_ssa_name_flags): treat RVO
	conservatively and assume all possible side-effects.

2021-02-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (vec_unpacks_hi,
	vec_unpacku_hi_): Define builtins.
	* config/aarch64/arm_neon.h (vmovl_high_s8): Reimplement using
	builtin.
	(vmovl_high_s16): Likewise.
	(vmovl_high_s32): Likewise.
	(vmovl_high_u8): Likewise.
	(vmovl_high_u16): Likewise.
	(vmovl_high_u32): Likewise.

2021-02-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (sabdl, uabdl):
	Define builtins.
	* config/aarch64/aarch64-simd.md (aarch64_<sur>abdl<mode>): New
	pattern.
	* config/aarch64/aarch64.md (unspec): Define UNSPEC_SABDL,
	UNSPEC_UABDL.
	* config/aarch64/arm_neon.h (vabdl_s8): Reimplemet using
	builtin.
	(vabdl_s16): Likewise.
	(vabdl_s32): Likewise.
	(vabdl_u8): Likewise.
	(vabdl_u16): Likewise.
	(vabdl_u32): Likewise.
	* config/aarch64/iterators.md (ABDL): New int iterator.
	(sur): Handle UNSPEC_SABDL, UNSPEC_UABDL.

2021-02-01  Martin Sebor  <msebor@redhat.com>

	* tree.h (BLOCK_VARS): Add comment.
	(BLOCK_SUBBLOCKS): Same.
	(BLOCK_SUPERCONTEXT): Same.
	(BLOCK_ABSTRACT_ORIGIN): Same.
	(inlined_function_outer_scope_p): Same.

2021-02-01  Martin Sebor  <msebor@redhat.com>

	PR middle-end/97172
	* attribs.c (attr_access::free_lang_data): Define new function.
	* attribs.h (attr_access::free_lang_data): Declare new function.

2021-02-01  Richard Biener  <rguenther@suse.de>

	* vec.h (auto_vec::auto_vec): Add memory stat parameters
	and pass them on.
	* bitmap.h (auto_bitmap::auto_bitmap): Likewise.

2021-02-01  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_<su>mlal_n<mode>,
	aarch64_<su>mlsl<mode>, aarch64_<su>mlsl_n<mode>): Flip mult operands.

2021-02-01  Richard Biener  <rguenther@suse.de>

	PR rtl-optimization/98863
	* config/i386/i386-features.c (convert_scalars_to_vector):
	Set DF_RD_PRUNE_DEAD_DEFS.

2021-01-31  Eric Botcazou  <ebotcazou@adacore.com>

	* system.h (SIZE_MAX): Define if not already defined.

2021-01-30  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/genfusion.pl (gen_2logical): New function to
	generate patterns for logical-logical fusion.
	* config/rs6000/fusion.md: Regenerated patterns.
	* config/rs6000/rs6000-cpus.def: Add
	OPTION_MASK_P10_FUSION_2LOGICAL.
	* config/rs6000/rs6000.c (rs6000_option_override_internal):
	Enable logical-logical fusion for p10.
	* config/rs6000/rs6000.opt: Add -mpower10-fusion-2logical.

2021-01-30  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/rs6000.opt: Add periods to new AIX options.

2021-01-30  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/rs6000.opt (mabi=vec-extabi): New.
	(mabi=vec-default): New.
	* config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Define
	__EXTABI__ for AIX Vector extended ABI.
	* config/rs6000/rs6000.c (rs6000_debug_reg_global): Print AIX Vector
	extabi info.
	(conditional_register_usage): If AIX vec_extabi enabled, vs20-vs31
	are non-volatile.
	* doc/invoke.texi (PowerPC mabi): Add AIX vec-extabi and vec-default.

2021-01-30  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386-features.c (remove_partial_avx_dependency): Clear
	DF_DEFER_INSN_RESCAN after calling df_process_deferred_rescans.

2021-01-29  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/97701
	* lra-constraints.c (in_class_p): Don't narrow class only for REG
	or MEM.

2021-01-29  Will Schmidt  <will_schmidt@vnet.ibm.com>

	* config/rs6000/rs6000-call.c (rs6000_expand_binup_builtin): Add
	clauses for CODE_FOR_vsx_xvcvuxddp_scale and
	CODE_FOR_vsx_xvcvsxddp_scale to the parameter checking code.

2021-01-29  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/98866
	* gimple-range-gori.h (gori_compute:set_range_invariant): New.
	* gimple-range-gori.cc (gori_map::set_range_invariant): New.
	(gori_map::m_maybe_invariant): Rename from all_outgoing.
	(gori_map::gori_map): Rename all_outgoing to m_maybe_invariant.
	(gori_map::is_export_p): Ditto.
	(gori_map::calculate_gori): Ditto.
	(gori_compute::set_range_invariant): New.
	* gimple-range.cc (gimple_ranger::range_of_stmt): Set range
	invariant for pointers evaluating to [1, +INF].

2021-01-29  Richard Biener  <rguenther@suse.de>

	PR rtl-optimization/98863
	* config/i386/i386-features.c (remove_partial_avx_dependency):
	Do not perform DF analysis.
	(pass_data_remove_partial_avx_dependency): Remove
	TODO_df_finish.

2021-01-29  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add [su]mull_n
	builtin generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_<su>mull_n<mode>):
	Define.
	* config/aarch64/arm_neon.h (vmull_n_s16): Use RTL builtin
	instead of inline asm.
	(vmull_n_s32): Likewise.
	(vmull_n_u16): Likewise.
	(vmull_n_u32): Likewise.

2021-01-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (sabdl2, uabdl2):
	Define builtins.
	* config/aarch64/aarch64-simd.md (aarch64_<sur>abdl2<mode>_3):
	Rename to...
	(aarch64_<sur>abdl2<mode>): ... This.
	(<sur>sadv16qi): Adjust use of above.
	* config/aarch64/arm_neon.h (vabdl_high_s8): Reimplement using
	builtin.
	(vabdl_high_s16): Likewise.
	(vabdl_high_s32): Likewise.
	(vabdl_high_u8): Likewise.
	(vabdl_high_u16): Likewise.
	(vabdl_high_u32): Likewise.

2021-01-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (sabal2): Define
	builtin.
	(uabal2): Likewise.
	* config/aarch64/aarch64-simd.md (aarch64_<sur>abal2<mode>): New
	pattern.
	* config/aarch64/aarch64.md (unspec): Add UNSPEC_SABAL2 and
	UNSPEC_UABAL2.
	* config/aarch64/arm_neon.h (vabal_high_s8): Reimplement using
	builtin.
	(vabal_high_s16): Likewise.
	(vabal_high_s32): Likewise.
	(vabal_high_u8): Likewise.
	(vabal_high_u16): Likewise.
	(vabal_high_u32): Likewise.
	* config/aarch64/iterators.md (ABAL2): New mode iterator.
	(sur): Handle UNSPEC_SABAL2, UNSPEC_UABAL2.

2021-01-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (sabal): Define
	builtin.
	(uabal): Likewise.
	* config/aarch64/aarch64-simd.md (aarch64_<sur>abal<mode>_4):
	Rename to...
	(aarch64_<sur>abal<mode>): ... This
	(<sur>sadv16qi): Adust use of the above.
	* config/aarch64/arm_neon.h (vabal_s8): Reimplement using
	builtin.
	(vabal_s16): Likewise.
	(vabal_s32): Likewise.
	(vabal_u8): Likewise.
	(vabal_u16): Likewise.
	(vabal_u32): Likewise.

2021-01-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (saddlv, uaddlv):
	Define builtins.
	* config/aarch64/aarch64-simd.md (aarch64_<su>addlv<mode>):
	Define.
	* config/aarch64/arm_neon.h (vaddlv_s8): Reimplement using
	builtin.
	(vaddlv_s16): Likewise.
	(vaddlv_u8): Likewise.
	(vaddlv_u16): Likewise.
	(vaddlvq_s8): Likewise.
	(vaddlvq_s16): Likewise.
	(vaddlvq_s32): Likewise.
	(vaddlvq_u8): Likewise.
	(vaddlvq_u16): Likewise.
	(vaddlvq_u32): Likewise.
	(vaddlv_s32): Likewise.
	(vaddlv_u32): Likewise.
	* config/aarch64/iterators.md (VDQV_L): New mode iterator.
	(unspec): Add UNSPEC_SADDLV, UNSPEC_UADDLV.
	(Vwstype): New mode attribute.
	(Vwsuf): Likewise.
	(VWIDE_S): Likewise.
	(USADDLV): New int iterator.
	(su): Handle UNSPEC_SADDLV, UNSPEC_UADDLV.

2021-01-29  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add [su]mlsl_lane[q]
	builtin generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_vec_<su>mlsl_lane<Qlane>):
	Define.
	* config/aarch64/arm_neon.h (vmlsl_lane_s16): Use RTL builtin
	instead of inline asm.
	(vmlsl_lane_s32): Likewise.
	(vmlsl_lane_u16): Likewise.
	(vmlsl_lane_u32): Likewise.
	(vmlsl_laneq_s16): Likewise.
	(vmlsl_laneq_s32): Likewise.
	(vmlsl_laneq_u16): Likewise.
	(vmlsl_laneq_u32): Likewise.

2021-01-29  Richard Biener  <rguenther@suse.de>

	* doc/invoke.texi (--param max-gcse-memory): Document unit
	of size.
	* gcse.c (gcse_or_cprop_is_too_expensive): Adjust.
	* params.opt (--param max-gcse-memory): Adjust default and
	document unit of size.

2021-01-29  Richard Biener  <rguenther@suse.de>

	PR rtl-optimization/98863
	* gcse.c (gcse_or_cprop_is_too_expensive): Use unsigned
	HOST_WIDE_INT for the memory estimate.

2021-01-29  Bin Cheng  <bin.cheng@linux.alibaba.com>
	    Richard Biener  <rguenther@suse.de>

	PR tree-optimization/97627
	* tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions):
	Do not analyze fake edges.

2021-01-29  Richard Biener  <rguenther@suse.de>

	PR rtl-optimization/98144
	* df.h (df_mir_bb_info): Add con_visited member.
	* df-problems.c (df_mir_alloc): Initialize con_visited,
	do not fully populate IN and OUT.
	(df_mir_reset): Likewise.
	(df_mir_confluence_0): Set con_visited.
	(df_mir_confluence_n): Properly handle implicitely
	fully populated IN and OUT as designated by con_visited
	and update con_visited accordingly.

2021-01-29  Jakub Jelinek  <jakub@redhat.com>

	PR target/98849
	* config/arm/vec-common.md (mve_vshlq_<supf><mode>,
	vashl<mode>3, vashr<mode>3, vlshr<mode>3): Add
	&& !TARGET_REALLY_IWMMXT to conditions.

2021-01-29  Jakub Jelinek  <jakub@redhat.com>

	PR debug/98331
	* cfgbuild.c (find_bb_boundaries): Reset debug_insn when seeing
	a BARRIER.

2021-01-28  Marek Polacek  <polacek@redhat.com>

	PR c++/94775
	* stor-layout.c (finalize_type_size): If we reset TYPE_USER_ALIGN in
	the main variant, maybe reset it in its variants too.
	* tree.c (check_base_type): Return true only if TYPE_USER_ALIGN match.
	(check_aligned_type): Check if TYPE_USER_ALIGN match.

2021-01-28  Christophe Lyon  <christophe.lyon@linaro.org>

	PR target/98730
	* config/arm/arm.c (arm_rtx_costs_internal): Adjust cost of vector
	of constant zero for comparisons.

2021-01-28  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/rs6000.c (rs6000_mangle_decl_assembler_name): Add
	support for mapping built-in function names for long double
	built-in functions if long double is IEEE 128-bit.

2021-01-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add [su]mlsl_n
	builtin generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_<su>mlsl_n<mode>):
	Define.
	* config/aarch64/arm_neon.h (vmlsl_n_s16): Use RTL builtin
	instead of inline asm.
	(vmlsl_n_s32): Likewise.
	(vmlsl_n_u16): Likewise.
	(vmlsl_n_u32): Likewise.

2021-01-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add [su]mlal_n
	builtin generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_<su>mlal_n<mode>):
	Define.
	* config/aarch64/arm_neon.h (vmlal_n_s16): Use RTL builtin
	instead of inline asm.
	(vmlal_n_s32): Likewise.
	(vmlal_n_u16): Likewise.
	(vmlal_n_u32): Likewise.

2021-01-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (shrn2): Define
	builtin.
	* config/aarch64/aarch64-simd.md (aarch64_shrn2<mode>_insn_le):
	Define.
	(aarch64_shrn2<mode>_insn_be): Likewise.
	(aarch64_shrn2<mode>): Likewise.
	* config/aarch64/arm_neon.h (vshrn_high_n_s16): Reimlplement
	using builtins.
	(vshrn_high_n_s32): Likewise.
	(vshrn_high_n_s64): Likewise.
	(vshrn_high_n_u16): Likewise.
	(vshrn_high_n_u32): Likewise.
	(vshrn_high_n_u64): Likewise.

2021-01-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (shrn): Define
	builtin.
	* config/aarch64/aarch64-simd.md (aarch64_shrn<mode>_insn_le):
	Define.
	(aarch64_shrn<mode>_insn_be): Likewise.
	(aarch64_shrn<mode>): Likewise.
	* config/aarch64/arm_neon.h (vshrn_n_s16): Reimplement using
	builtins.
	(vshrn_n_s32): Likewise.
	(vshrn_n_s64): Likewise.
	(vshrn_n_u16): Likewise.
	(vshrn_n_u32): Likewise.
	(vshrn_n_u64): Likewise.
	* config/aarch64/iterators.md (vn_mode): New mode attribute.

2021-01-28  Richard Biener  <rguenther@suse.de>

	PR rtl-optimization/80960
	* dse.c (check_mem_read_rtx): Call get_addr on the
	offsetted address.

2021-01-28  Xionghu Luo  <luoxhu@linux.ibm.com>
	    David Edelsohn  <dje.gcc@gmail.com>

	PR target/98799
	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
	Don't generate VIEW_CONVERT_EXPR for fcode ALTIVEC_BUILTIN_VEC_INSERT
	when -m32.
	* config/rs6000/rs6000-protos.h (rs6000_expand_vector_set_var):
	Delete.
	* config/rs6000/rs6000.c (rs6000_expand_vector_set): Remove the
	wrapper call rs6000_expand_vector_set_var for cleanup.  Call
	rs6000_expand_vector_set_var_p9 and rs6000_expand_vector_set_var_p8
	directly.
	(rs6000_expand_vector_set_var): Delete.
	(rs6000_expand_vector_set_var_p9): Make static.
	(rs6000_expand_vector_set_var_p8): Make static.

2021-01-28  Xing GUO  <higuoxing@gmail.com>

	* common/config/riscv/riscv-common.c
	(riscv_subset_list::parsing_subset_version): Fix -march option parsing
	when `p` extension exists.

2021-01-27  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/97684
	* ira.c (ira): Call ira_set_pseudo_classes before
	update_equiv_regs when it is necessary.

2021-01-27  Jakub Jelinek  <jakub@redhat.com>

	PR target/98853
	* config/aarch64/aarch64.md (*aarch64_bfxilsi_uxtw): Use
	%w0, %w1 and %2 instead of %0, %1 and %2.

2021-01-27  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/genfusion.pl: New script to generate
	define_insn_and_split patterns so combine can arrange fused
	instructions next to each other.
	* config/rs6000/fusion.md: New file, generated fused instruction
	patterns for combine.
	* config/rs6000/predicates.md (const_m1_to_1_operand): New predicate.
	(non_update_memory_operand): New predicate.
	* config/rs6000/rs6000-cpus.def: Add OPTION_MASK_P10_FUSION and
	OPTION_MASK_P10_FUSION_LD_CMPI to ISA_3_1_MASKS_SERVER and
	POWERPC_MASKS.
	* config/rs6000/rs6000-protos.h (address_is_non_pfx_d_or_x): Add
	prototype.
	* config/rs6000/rs6000.c (rs6000_option_override_internal):
	Automatically set OPTION_MASK_P10_FUSION and
	OPTION_MASK_P10_FUSION_LD_CMPI if target is power10.
	(rs600_opt_masks): Allow -mpower10-fusion
	in function attributes.
	(address_is_non_pfx_d_or_x): New function.
	* config/rs6000/rs6000.h: Add MASK_P10_FUSION.
	* config/rs6000/rs6000.md: Include fusion.md.
	* config/rs6000/rs6000.opt: Add -mpower10-fusion
	and -mpower10-fusion-ld-cmpi.
	* config/rs6000/t-rs6000: Add dependencies involving fusion.md.

2021-01-27  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add [su]mlal
	builtin generator macros.
	* config/aarch64/aarch64-simd.md (*aarch64_<su>mlal<mode>):
	Rename to...
	(aarch64_<su>mlal<mode>): This.
	* config/aarch64/arm_neon.h (vmlal_s8): Use RTL builtin
	instead of inline asm.
	(vmlal_s16): Likewise.
	(vmlal_s32): Likewise.
	(vmlal_u8): Likewise.
	(vmlal_u16): Likewise.
	(vmlal_u32): Likewise.

2021-01-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98854
	* tree-vect-slp.c (vect_build_slp_tree_2): Also build
	PHIs from scalars when the number of CTORs matches the
	number of children.

2021-01-27  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add mls_n builtin
	generator macro.
	* config/aarch64/aarch64-simd.md (*aarch64_mls_elt_merge<mode>):
	Rename to...
	(aarch64_mls_n<mode>): This.
	* config/aarch64/arm_neon.h (vmls_n_s16): Use RTL builtin
	instead of asm.
	(vmls_n_s32): Likewise.
	(vmls_n_u16): Likewise.
	(vmls_n_u32): Likewise.
	(vmlsq_n_s16): Likewise.
	(vmlsq_n_s32): Likewise.
	(vmlsq_n_u16): Likewise.
	(vmlsq_n_u32): Likewise.

2021-01-27  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add mls builtin
	generator macro.
	* config/aarch64/arm_neon.h (vmls_s8): Use RTL builtin rather
	than asm.
	(vmls_s16): Likewise.
	(vmls_s32): Likewise.
	(vmls_u8): Likewise.
	(vmls_u16): Likewise.
	(vmls_u32): Likewise.
	(vmlsq_s8): Likewise.
	(vmlsq_s16): Likewise.
	(vmlsq_s32): Likewise.
	(vmlsq_u8): Likewise.
	(vmlsq_u16): Likewise.
	(vmlsq_u32): Likewise.

2021-01-27  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add mla_n builtin
	generator macro.
	* config/aarch64/aarch64-simd.md (*aarch64_mla_elt_merge<mode>):
	Rename to...
	(aarch64_mla_n<mode>): This.
	* config/aarch64/arm_neon.h (vmla_n_s16): Use RTL builtin
	instead of asm.
	(vmla_n_s32): Likewise.
	(vmla_n_u16): Likewise.
	(vmla_n_u32): Likewise.
	(vmlaq_n_s16): Likewise.
	(vmlaq_n_s32): Likewise.
	(vmlaq_n_u16): Likewise.
	(vmlaq_n_u32): Likewise.

2021-01-27  liuhongt  <hongtao.liu@intel.com>

	PR target/98833
	* config/i386/sse.md (sse2_gt<mode>3): Drop !TARGET_XOP in condition.
	(*sse2_eq<mode>3): Ditto.

2021-01-27  Jakub Jelinek  <jakub@redhat.com>

	* tree-pass.h (PROP_trees): Rename to ...
	(PROP_gimple): ... this.
	* cfgexpand.c (pass_data_expand): Replace PROP_trees with PROP_gimple.
	* passes.c (execute_function_dump, execute_function_todo,
	execute_one_ipa_transform_pass, execute_one_pass): Likewise.
	* varpool.c (ctor_for_folding): Likewise.

2021-01-27  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/97260
	* varpool.c: Include tree-pass.h.
	(ctor_for_folding): In GENERIC return DECL_INITIAL for TREE_READONLY
	non-TREE_SIDE_EFFECTS automatic variables.

2021-01-26  Paul Fee  <paul.f.fee@gmail.com>

	* doc/cpp.texi (__cplusplus): Document value for -std=c++23
	or -std=gnu++23.
	* doc/invoke.texi: Document -std=c++23 and -std=gnu++23.
	* dwarf2out.c (highest_c_language): Recognise C++20 and C++23.
	(gen_compile_unit_die): Recognise C++23.

2021-01-26  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/98839
	* dwarf2asm.c (dw2_assemble_integer): Cast DWARF2_ADDR_SIZE to int
	in comparison.

2021-01-26  Jakub Jelinek  <jakub@redhat.com>

	PR target/98681
	* config/aarch64/aarch64.c (aarch64_mask_and_shift_for_ubfiz_p):
	Use UINTVAL (shft_amnt) and UINTVAL (mask) instead of INTVAL (shft_amnt)
	and INTVAL (mask).  Add && INTVAL (mask) > 0 condition.

2021-01-26  Richard Biener  <rguenther@suse.de>

	* gimple-pretty-print.c (dump_binary_rhs): Handle
	VEC_WIDEN_{PLUS,MINUS}_{LO,HI}_EXPR.

2021-01-26  Richard Biener  <rguenther@suse.de>

	PR middle-end/98726
	* tree.h (vector_cst_int_elt): Remove.
	* tree.c (vector_cst_int_elt): Use poly_wide_int for computations,
	make static.

2021-01-26  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn.c (gcn_expand_reduc_scalar): Use move instructions
	for V64DFmode min/max reductions.

2021-01-26  Jakub Jelinek  <jakub@redhat.com>

	* dwarf2asm.c (dw2_assemble_integer): Handle size twice as large
	as DWARF2_ADDR_SIZE if x is not a scalar int by emitting it as
	two halves, one with x and the other with const0_rtx, ordered
	depending on endianity.

2021-01-26  Alexandre Oliva  <oliva@adacore.com>

	* gimplify.c (gimplify_decl_expr): Skip asan marking calls for
	temporaries not seen in binding block, and not about to be
	added as gimple variables.

2021-01-25  Martin Sebor  <msebor@redhat.com>

	PR c++/98646
	* tree-ssa-ccp.c (pass_post_ipa_warn::execute): Adjust warning text.

2021-01-25  Martin Liska  <mliska@suse.cz>

	* value-prof.c (get_nth_most_common_value): Use %s instead
	of %qs string.

2021-01-25  Jakub Jelinek  <jakub@redhat.com>

	PR debug/98811
	* configure.ac (HAVE_AS_GDWARF_5_DEBUG_FLAG): Only define if
	readelf -wi is able to read the emitted .debug_info back.
	* configure: Regenerated.

2021-01-25  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/98739
	* common.opt: Add missing sign symbol.
	* value-prof.c (get_nth_most_common_value): Restore handling
	of PROFILE_REPRODUCIBILITY_PARALLEL_RUNS and
	PROFILE_REPRODUCIBILITY_MULTITHREADED.

2021-01-25  Richard Biener  <rguenther@suse.de>

	PR middle-end/98807
	* tree.c (vector_element_bits): Always use precision of
	the element type for boolean vectors.

2021-01-25  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* config/rtems.h (STARTFILE_SPEC): Remove qnolinkcmds.
	(ENDFILE_SPEC): Evaluate qnolinkcmds.

2021-01-25  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* config/rtems.h (STARTFILE_SPEC): Remove nostdlib and
	nostartfiles handling since this is already done by
	LINK_COMMAND_SPEC.  Evaluate qnolinkcmds.
	(ENDFILE_SPEC): Remove nostdlib and nostartfiles handling since this
	is already done by LINK_COMMAND_SPEC.
	(LIB_SPECS): Remove nostdlib and nodefaultlibs handling since
	this is already done by LINK_COMMAND_SPEC.  Remove qnolinkcmds
	evaluation.

2021-01-25  Jakub Jelinek  <jakub@redhat.com>

	PR testsuite/98771
	* fold-const-call.c (host_size_t_cst_p): Renamed to ...
	(size_t_cst_p): ... this.  Check and store unsigned HOST_WIDE_INT
	value rather than host size_t.
	(fold_const_call): Change type of s2 from size_t to
	unsigned HOST_WIDE_INT.  Use size_t_cst_p instead of
	host_size_t_cst_p.  For strncmp calls, pass MIN (s2, SIZE_MAX)
	instead of s2 as last argument.

2021-01-25  Tamar Christina  <tamar.christina@arm.com>

	* config/arm/iterators.md (rotsplit1, rotsplit2, conj_op, fcmac1,
	VCMLA_OP, VCMUL_OP): New.
	* config/arm/mve.md (mve_vcmlaq<mve_rot><mode>): Support vec_dup 0.
	* config/arm/neon.md (cmul<conj_op><mode>3): New.
	* config/arm/unspecs.md (UNSPEC_VCMLA_CONJ, UNSPEC_VCMLA180_CONJ,
	UNSPEC_VCMUL_CONJ): New.
	* config/arm/vec-common.md (cmul<conj_op><mode>3, arm_vcmla<rot><mode>,
	cml<fcmac1><conj_op><mode>4): New.

2021-01-23  Jakub Jelinek  <jakub@redhat.com>

	PR testsuite/97301
	* config/rs6000/mmintrin.h (__m64): Add __may_alias__ attribute.

2021-01-22  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add mla builtin
	generator macro.
	* config/aarch64/arm_neon.h (vmla_s8): Use RTL builtin rather
	than asm.
	(vmla_s16): Likewise.
	(vmla_s32): Likewise.
	(vmla_u8): Likewise.
	(vmla_u16): Likewise.
	(vmla_u32): Likewise.
	(vmlaq_s8): Likewise.
	(vmlaq_s16): Likewise.
	(vmlaq_s32): Likewise.
	(vmlaq_u8): Likewise.
	(vmlaq_u16): Likewise.
	(vmlaq_u32): Likewise.

2021-01-22  David Malcolm  <dmalcolm@redhat.com>

	* doc/invoke.texi (GCC_EXTRA_DIAGNOSTIC_OUTPUT): Add @findex
	directive.

2021-01-22  Jakub Jelinek  <jakub@redhat.com>

	PR debug/98796
	* dwarf2out.c (output_file_names): For -gdwarf-5, if there are no
	filenames to emit, still emit the required 0 index directory and
	filename entries that match DW_AT_comp_dir and DW_AT_name of the
	compilation unit.

2021-01-22  Marek Polacek  <polacek@redhat.com>

	PR c++/98545
	* doc/invoke.texi: Update C++ ABI Version 15 description.

2021-01-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	PR tree-optimization/98766
	* tree-ssa-math-opts.c (convert_mult_to_fma): Use maybe_le when
	comparing against type size with param_avoid_fma_max_bits.

2021-01-22  Richard Biener  <rguenther@suse.de>

	PR middle-end/98793
	* tree.c (vector_element_bits): Key single-bit bool vector on
	integer mode rather than not vector mode.

2021-01-22  Xionghu Luo  <luoxhu@linux.ibm.com>

	PR target/98093
	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
	Generate ARRAY_REF(VIEW_CONVERT_EXPR) for P8 and later
	platforms.
	* config/rs6000/rs6000.c (rs6000_expand_vector_set_var): Update
	to call different path for P8 and P9.
	(rs6000_expand_vector_set_var_p9): New function.
	(rs6000_expand_vector_set_var_p8): New function.

2021-01-22  Xionghu Luo  <luoxhu@linux.ibm.com>

	PR target/79251
	PR target/98065
	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
	Ajdust variable index vec_insert from address dereference to
	ARRAY_REF(VIEW_CONVERT_EXPR) tree expression.
	* config/rs6000/rs6000-protos.h (rs6000_expand_vector_set_var):
	New declaration.
	* config/rs6000/rs6000.c (rs6000_expand_vector_set_var): New function.

2021-01-22  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/98739
	* profile.c (compute_value_histograms): Drop time profile for
	-fprofile-reproducible=multithreaded.

2021-01-22  Nathan Sidwell  <nathan@acm.org>

	* gcc.c (process_command): Don't check OPT_SPECIAL_input_file
	existence here.

2021-01-22  Richard Biener  <rguenther@suse.de>

	PR middle-end/98773
	* tree-data-ref.c (initalize_matrix_A): Revert previous
	change, retaining failing on HOST_WIDE_INT_MIN CHREC_RIGHT.

2021-01-22  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/90248
	* match.pd (X cmp 0.0 ? 1.0 : -1.0 -> copysign(1, +-X),
	X cmp 0.0 ? -1.0 : +1.0 -> copysign(1, -+X)): Remove
	simplifications.
	(X * (X cmp 0.0 ? 1.0 : -1.0) -> +-abs(X),
	X * (X cmp 0.0 ? -1.0 : 1.0) -> +-abs(X)): New simplifications.

2021-01-22  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/98255
	* tree-dfa.c (get_ref_base_and_extent): For ARRAY_REFs, sign
	extend index - low_bound from sizetype's precision rather than index
	precision.
	(get_addr_base_and_unit_offset_1): Likewise.
	* tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Likewise.
	* gimple-fold.c (fold_const_aggregate_ref_1): Likewise.

2021-01-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98786
	* tree-ssa-phiopt.c (factor_out_conditional_conversion): Avoid
	adding new uses of abnormals.  Verify we deal with a conditional
	conversion.

2021-01-22  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	PR target/98636
	* optc-save-gen.awk: Add arm_fp16_format to checked_options.

2021-01-22  liuhongt  <hongtao.liu@intel.com>

	PR target/96891
	PR target/98348
	* config/i386/sse.md (VI_128_256): New mode iterator.
	(*avx_cmp<mode>3_1, *avx_cmp<mode>3_2, *avx_cmp<mode>3_3,
	 *avx_cmp<mode>3_4, *avx2_eq<mode>3, *avx2_pcmp<mode>3_1,
	 *avx2_pcmp<mode>3_2, *avx2_gt<mode>3): New
	define_insn_and_split to lower avx512 vector comparison to avx
	version when dest is vector.
	(*<avx512>_cmp<mode>3,*<avx512>_cmp<mode>3,*<avx512>_ucmp<mode>3):
	define_insn_and_split for negating the comparison result.
	* config/i386/predicates.md (float_vector_all_ones_operand):
	New predicate.
	* config/i386/i386-expand.c (ix86_expand_sse_movcc): Use
	general NOT operator without UNSPEC_MASKOP.

2021-01-21  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/98777
	* lra-int.h (lra_pmode_pseudo): New extern.
	* lra.c (lra_pmode_pseudo): New global.
	(lra): Set it up.
	* lra-eliminations.c (eliminate_regs_in_insn): Use it.

2021-01-21  Ilya Leoshkevich  <iii@linux.ibm.com>

	* fwprop.c (fwprop_propagation::classify_result): Allow
	(subreg (mem)) simplifications.

2021-01-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_sqdml<SBINQOPS:as>l<mode>):
	Split into...
	(aarch64_sqdmlal<mode>): ... This...
	(aarch64_sqdmlsl<mode>): ... And this.
	(aarch64_sqdml<SBINQOPS:as>l_lane<mode>): Split into...
	(aarch64_sqdmlal_lane<mode>): ... This...
	(aarch64_sqdmlsl_lane<mode>): ... And this.
	(aarch64_sqdml<SBINQOPS:as>l_laneq<mode>): Split into...
	(aarch64_sqdmlsl_laneq<mode>): ... This...
	(aarch64_sqdmlal_laneq<mode>):  ... And this.
	(aarch64_sqdml<SBINQOPS:as>l_n<mode>): Split into...
	(aarch64_sqdmlsl_n<mode>): ... This...
	(aarch64_sqdmlal_n<mode>): ... And this.
	(aarch64_sqdml<SBINQOPS:as>l2<mode>_internal): Split into...
	(aarch64_sqdmlal2<mode>_internal): ... This...
	(aarch64_sqdmlsl2<mode>_internal): ... And this.

2021-01-21  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/arm_mve.h (__arm_vcmpneq_s8): Fix return type.

2021-01-21  Andrea Corallo  <andrea.corallo@arm.com>

	PR target/96372
	* doc/sourcebuild.texi (arm_thumb2_no_arm_v8_1_lob): Document.

2021-01-21  liuhongt  <hongtao.liu@intel.com>

	PR rtl-optimization/98694
	* regcprop.c (copy_value): If SRC had been assigned a mode
	narrower than the copy, we can't link DEST into the chain even
	they have same hard_regno_nregs(i.e. HImode/SImode in i386
	backend).

2021-01-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_get_lane<mode>):
	Convert to define_insn_and_split.  Split into simple move when moving
	bottom element.

2021-01-20  Segher Boessenkool  <segher@kernel.crashing.org>

	* config/rs6000/rs6000.c (rs6000_emit_le_vsx_store): Change assert.
	Adjust comment.  Simplify code.

2021-01-20  Jakub Jelinek  <jakub@redhat.com>

	PR debug/98765
	* dwarf2out.c (reset_indirect_string): Also reset indirect strings
	with DW_FORM_line_strp form.
	(prune_unused_types_update_strings): Don't add into debug_str_hash
	indirect strings with DW_FORM_line_strp form.
	(adjust_name_comp_dir): New function.
	(dwarf2out_finish): Call it on CU DIEs after resetting
	debug_line_str_hash.

2021-01-20  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/98722
	* lra-eliminations.c (eliminate_regs_in_insn): Check that target
	has no 3-op add insn to transform insns containing two pluses.

2021-01-20  Richard Biener  <rguenther@suse.de>

	* hwint.h (add_hwi): New function.
	(mul_hwi): Likewise.
	* tree-data-ref.c (initialize_matrix_A): Properly translate
	tree constants and avoid HOST_WIDE_INT_MIN.
	(lambda_matrix_row_add): Avoid undefined integer overflow
	and return true on such overflow.
	(lambda_matrix_right_hermite): Handle overflow from
	lambda_matrix_row_add gracefully.  Simplify previous fix.
	(analyze_subscript_affine_affine): Likewise.

2021-01-20  Eugene Rozenfeld  <erozen@microsoft.com>

	PR tree-optimization/96674
	* match.pd: New patterns: x < y || y == XXX_MIN --> x <= y - 1
	x >= y && y != XXX_MIN --> x > y - 1

2021-01-20  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/98535
	* tree-vect-slp.c (duplicate_and_interleave): Use quick_grow_cleared.
	If the high and low permutes are the same, remove the high permutes
	from the working set and only continue with the low ones.

2021-01-20  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/98721
	* builtins.c (access_ref::inform_access): Don't assume
	SSA_NAME_IDENTIFIER must be non-NULL.  Print messages about
	object whenever allocfn is NULL, rather than only when DECL_P
	is true.  Use %qE instead of %qD for that.  Formatting fixes.

2021-01-20  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98758
	* tree-data-ref.c (int_divides_p): Use lambda_int arguments.
	(lambda_matrix_right_hermite): Avoid undefinedness with
	signed integer abs and multiplication.
	(analyze_subscript_affine_affine): Use lambda_int.

2021-01-20  David Malcolm  <dmalcolm@redhat.com>

	PR debug/98751
	* dwarf2out.c (output_line_info): Rename static variable
	"generation", moving it out of the function to...
	(output_line_info_generation): New.
	(init_sections_and_labels): Likewise, renaming the variable to...
	(init_sections_and_labels_generation): New.
	(dwarf2out_c_finalize): Reset the new variables.

2021-01-19  Martin Sebor  <msebor@redhat.com>

	PR middle-end/98664
	* tree-ssa-live.c (remove_unused_scope_block_p): Keep scopes for
	all functions, even if they're not declared artificial or inline.
	* tree.c (tree_inlined_location): Use macro expansion location
	only if scope traversal fails to expose one.

2021-01-19  Richard Sandiford  <richard.sandiford@arm.com>

	PR rtl-optimization/92294
	* alias.c (compare_base_symbol_refs): Take an extra parameter
	and add the distance between two symbols to it.  Enshrine in
	comments that -1 means "either 0 or 1, but we can't tell
	which at compile time".
	(memrefs_conflict_p): Update call accordingly.
	(rtx_equal_for_memref_p): Likewise.  Take the distance between symbols
	into account.

2021-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (sqshl, uqshl,
	sqrshl, uqrshl, sqadd, uqadd, sqsub, uqsub, suqadd, usqadd, sqmovn,
	uqmovn, sqxtn2, uqxtn2, sqabs, sqneg, sqdmlal, sqdmlsl, sqdmlal_lane,
	sqdmlsl_lane, sqdmlal_laneq, sqdmlsl_laneq, sqdmlal_n, sqdmlsl_n,
	sqdmlal2, sqdmlsl2, sqdmlal2_lane, sqdmlsl2_lane, sqdmlal2_laneq,
	sqdmlsl2_laneq, sqdmlal2_n, sqdmlsl2_n, sqdmull, sqdmull_lane,
	sqdmull_laneq, sqdmull_n, sqdmull2, sqdmull2_lane, sqdmull2_laneq,
	sqdmull2_n, sqdmulh, sqrdmulh, sqdmulh_lane, sqdmulh_laneq,
	sqrdmulh_lane, sqrdmulh_laneq, sqshrun_n, sqrshrun_n, sqshrn_n,
	uqshrn_n, sqrshrn_n, uqrshrn_n, sqshlu_n, sqshl_n, uqshl_n, sqrdmlah,
	sqrdmlsh, sqrdmlah_lane, sqrdmlsh_lane, sqrdmlah_laneq, sqrdmlsh_laneq,
	sqmovun): Use NONE flags.

2021-01-19  Richard Biener  <rguenther@suse.de>

	PR ipa/98330
	* ipa-modref.c (analyze_stmt): Only record a summary for a
	direct call.

2021-01-19  Richard Biener  <rguenther@suse.de>

	PR middle-end/98638
	* tree-ssanames.c (fini_ssanames): Zero SSA_NAME_DEF_STMT.

2021-01-19  Daniel Hellstrom  <daniel@gaisler.com>

	* config/sparc/rtemself.h (TARGET_OS_CPP_BUILTINS): Add
	built-in define __FIX_LEON3FT_TN0018.

2021-01-19  Richard Biener  <rguenther@suse.de>

	PR ipa/97673
	* tree-inline.c (tree_function_versioning): Set input_location
	to UNKNOWN_LOCATION throughout the function.

2021-01-19  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/98476
	* omp-low.c (lower_omp_target): Handle nonpointer is_device_ptr.

2021-01-19  Martin Jambor  <mjambor@suse.cz>

	PR ipa/98690
	* ipa-sra.c (ssa_name_only_returned_p): New parameter fun.  Check
	whether non-call exceptions allow removal of a statement.
	(isra_analyze_call): Pass the appropriate function to
	ssa_name_only_returned_p.

2021-01-19  Geng Qi  <gengqi@linux.alibaba.com>

	* config/riscv/arch-canonicalize (longext_sort): New function for
	 sorting 'multi-letter'.
	* config/riscv/multilib-generator: Adjusting the loop of 'alt' in
	'alts'.	The 'arch' may not be the first of 'alts'.
	(_expand_combination): Add underline for the 'ext' without '*'.
	This is because, a single-letter extension can always be treated well
	with a '_' prefix, but it cannot be separated out if it is appended
	to a multi-letter.

2021-01-18  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/97847
	* ira.c (ira): Skip abnormal critical edge splitting.

2021-01-18  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/98727
	* tree-ssa-math-opts.c (match_arith_overflow): Fix up computation of
	second .MUL_OVERFLOW operand for signed multiplication with overflow
	checking if the second operand of multiplication is not constant.

2021-01-18  David Edelsohn  <dje.gcc@gmail.com>

	* doc/invoke.texi (-gdwarf): TPF defaults to version 2 and AIX
	defaults to version 4.

2021-01-18  David Malcolm  <dmalcolm@redhat.com>

	* attribs.h (fndecl_dealloc_argno): New decl.
	* builtins.c (call_dealloc_argno): Split out second half of
	function into...
	(fndecl_dealloc_argno): New.
	* doc/extend.texi (Common Function Attributes): Document the
	interaction between the analyzer and the malloc attribute.
	* doc/invoke.texi (Static Analyzer Options): Likewise.

2021-01-17  David Edelsohn  <dje.gcc@gmail.com>

	* config/rs6000/aix71.h (SUBTARGET_OVERRIDE_OPTIONS): Override
	dwarf_version to 4.
	* config/rs6000/aix72.h (SUBTARGET_OVERRIDE_OPTIONS): Same.

2021-01-17  Martin Jambor  <mjambor@suse.cz>

	PR ipa/98222
	* cgraph.c (clone_of_p): Check also former_clone_of as we climb
	the clone tree.

2021-01-17  Mark Wielaard  <mark@klomp.org>

	* common.opt (gdwarf-): Init(5).
	* doc/invoke.texi (-gdwarf): Document default to 5.

2021-01-16  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* builtin-types.def
	(BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT): Rename
	to...
	(BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR):
	...this.  Add extra argument.
	* gimplify.c (omp_default_clause): Ensure that event handle is
	firstprivate in a task region.
	(gimplify_scan_omp_clauses): Handle OMP_CLAUSE_DETACH.
	(gimplify_adjust_omp_clauses): Likewise.
	* omp-builtins.def (BUILT_IN_GOMP_TASK): Change function type to
	BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT_PTR_INT_PTR.
	* omp-expand.c (expand_task_call): Add GOMP_TASK_FLAG_DETACH to flags
	if detach clause specified.  Add detach argument when generating
	call to	GOMP_task.
	* omp-low.c (scan_sharing_clauses): Setup data environment for detach
	clause.
	(finish_taskreg_scan): Move field for variable containing the event
	handle to the front of the struct.
	* tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_DETACH.  Fix
	ordering.
	* tree-nested.c (convert_nonlocal_omp_clauses): Handle
	OMP_CLAUSE_DETACH clause.
	(convert_local_omp_clauses): Handle OMP_CLAUSE_DETACH clause.
	* tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE_DETACH.
	* tree.c (omp_clause_num_ops): Add entry for OMP_CLAUSE_DETACH.
	Fix ordering.
	(omp_clause_code_name): Add entry for OMP_CLAUSE_DETACH.  Fix
	ordering.
	(walk_tree_1): Handle OMP_CLAUSE_DETACH.

2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* config/nios2/t-rtems: Reset all MULTILIB_* variables.  Shorten
	multilib directory names.  Use MULTILIB_REQUIRED instead of
	MULTILIB_EXCEPTIONS.  Add -mhw-mul -mhw-mulx -mhw-div
	-mcustom-fpu-cfg=fph2 multilib.

2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* config/nios2/nios2.c (NIOS2_FPU_CONFIG_NUM): Adjust value.
	(nios2_init_fpu_configs): Provide register values for new
	-mcustom-fpu-cfg=fph2 option variant.
	* doc/invoke.texi (-mcustom-fpu-cfg=fph2): Document new option
	variant.

2021-01-16  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* config/nios2/nios2.c (nios2_custom_check_insns): Remove
	custom instruction warnings.

2021-01-16  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96669
	* match.pd ((CST << x) & 1 -> x == 0): New simplification.

2021-01-16  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96271
	* passes.def: Pass false argument to first two pass_cd_dce
	instances and true to last instance.  Add comment that
	last instance rewrites no longer addressed locals.
	* tree-ssa-dce.c (pass_cd_dce): Add update_address_taken_p member and
	initialize it.
	(pass_cd_dce::set_pass_param): New method.
	(pass_cd_dce::execute): Return TODO_update_address_taken from
	last cd_dce instance.

2021-01-15  Carl Love  <cel@us.ibm.com>

	* config/rs6000/altivec.h (vec_mulh, vec_div, vec_dive, vec_mod):
	New defines.
	* config/rs6000/altivec.md (VIlong): Move define to file vsx.md.
	* config/rs6000/rs6000-builtin.def (DIVES_V4SI, DIVES_V2DI,
	DIVEU_V4SI, DIVEU_V2DI, DIVS_V4SI, DIVS_V2DI, DIVU_V4SI,
	DIVU_V2DI, MODS_V2DI, MODS_V4SI, MODU_V2DI, MODU_V4SI,
	MULHS_V2DI, MULHS_V4SI, MULHU_V2DI, MULHU_V4SI, MULLD_V2DI):
	Add builtin define.
	(MULH, DIVE, MOD):  Add new BU_P10_OVERLOAD_2 definitions.
	* config/rs6000/rs6000-call.c (VSX_BUILTIN_VEC_DIV,
	VSX_BUILTIN_VEC_DIVE, P10_BUILTIN_VEC_MOD, P10_BUILTIN_VEC_MULH):
	New overloaded definitions.
	(builtin_function_type) [P10V_BUILTIN_DIVEU_V4SI,
	P10V_BUILTIN_DIVEU_V2DI, P10V_BUILTIN_DIVU_V4SI,
	P10V_BUILTIN_DIVU_V2DI, P10V_BUILTIN_MODU_V2DI,
	P10V_BUILTIN_MODU_V4SI, P10V_BUILTIN_MULHU_V2DI,
	P10V_BUILTIN_MULHU_V4SI]: Add case
	statement for builtins.
	* config/rs6000/rs6000.md (bits): Add new attribute sizes V4SI, V2DI.
	* config/rs6000/vsx.md (VIlong): Moved from config/rs6000/altivec.md.
	(UNSPEC_VDIVES, UNSPEC_VDIVEU): New unspec definitions.
	(vsx_mul_v2di): Add if TARGET_POWER10 statement.
	(vsx_udiv_v2di): Add if TARGET_POWER10 statement.
	(dives_<mode>, diveu_<mode>, div<mode>3, uvdiv<mode>3,
	mods_<mode>, modu_<mode>, mulhs_<mode>, mulhu_<mode>, mulv2di3):
	Add define_insn, mode is VIlong.
	* doc/extend.texi (vec_mulh, vec_mul, vec_div, vec_dive, vec_mod):
	Add builtin descriptions.

2021-01-15  Eric Botcazou  <ebotcazou@adacore.com>

	* final.c (final_start_function_1): Reset force_source_line.

2021-01-15  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96669
	* match.pd (((1 << A) & 1) != 0 -> A == 0,
	((1 << A) & 1) == 0 -> A != 0): Generalize for 1s replaced by
	possibly different power of two constants and to right shift too.

2021-01-15  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96681
	* match.pd ((x < 0) ^ (y < 0) to (x ^ y) < 0): New simplification.
	((x >= 0) ^ (y >= 0) to (x ^ y) < 0): Likewise.
	((x < 0) ^ (y >= 0) to (x ^ y) >= 0): Likewise.
	((x >= 0) ^ (y < 0) to (x ^ y) >= 0): Likewise.

2021-01-15  Alexandre Oliva  <oliva@adacore.com>

	* opts.c (gen_command_line_string): Exclude -dumpbase-ext.

2021-01-15  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/aarch64-simd.md (cml<fcmac1><conj_op><mode>4,
	cmul<conj_op><mode>3): New.
	* config/aarch64/iterators.md (UNSPEC_FCMUL,
	UNSPEC_FCMUL180, UNSPEC_FCMLA_CONJ, UNSPEC_FCMLA180_CONJ,
	UNSPEC_CMLA_CONJ, UNSPEC_CMLA180_CONJ, UNSPEC_CMUL, UNSPEC_CMUL180,
	FCMLA_OP, FCMUL_OP, conj_op, rotsplit1, rotsplit2, fcmac1, sve_rot1,
	sve_rot2, SVE2_INT_CMLA_OP, SVE2_INT_CMUL_OP, SVE2_INT_CADD_OP): New.
	(rot): Add UNSPEC_FCMUL, UNSPEC_FCMUL180.
	(rot_op): Renamed to conj_op.
	* config/aarch64/aarch64-sve.md (cml<fcmac1><conj_op><mode>4,
	cmul<conj_op><mode>3): New.
	* config/aarch64/aarch64-sve2.md (cml<fcmac1><conj_op><mode>4,
	cmul<conj_op><mode>3): New.

2021-01-15  David Malcolm  <dmalcolm@redhat.com>

	PR bootstrap/98696
	* diagnostic.c
	(selftest::test_print_parseable_fixits_bytes_vs_display_columns):
	Escape the tempfile name when constructing the expected output.

2021-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md (*aarch64_<su>mlsl_hi<mode>):
	Rename to...
	(aarch64_<su>mlsl_hi<mode>): ... This.
	(aarch64_<su>mlsl_hi<mode>): Define.
	(*aarch64_<su>mlsl<mode): Rename to...
	(aarch64_<su>mlsl<mode): ... This.
	* config/aarch64/aarch64-simd-builtins.def (smlsl, umlsl,
	smlsl_hi, umlsl_hi): Define builtins.
	* config/aarch64/arm_neon.h (vmlsl_high_s8, vmlsl_high_s16,
	vmlsl_high_s32, vmlsl_high_u8, vmlsl_high_u16, vmlsl_high_u32,
	vmlsl_s8, vmlsl_s16, vmlsl_s32, vmlsl_u8,
	vmlsl_u16, vmlsl_u32): Reimplement with builtins.

2021-01-15  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386-c.c (ix86_target_macros):
	Use cpp_define_formatted for __SIZEOF_FLOAT80__ definition.

2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>

	PR target/88836
	* config.gcc (aarch64*-*-*): Add aarch64-cc-fusion.o to extra_objs.
	* Makefile.in (RTL_SSA_H): New variable.
	* config/aarch64/t-aarch64 (aarch64-cc-fusion.o): New rule.
	* config/aarch64/aarch64-protos.h (make_pass_cc_fusion): Declare.
	* config/aarch64/aarch64-passes.def: Add pass_cc_fusion after
	pass_combine.
	* config/aarch64/aarch64-cc-fusion.cc: New file.

2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>

	* recog.h (insn_change_watermark::~insn_change_watermark): Avoid
	calling cancel_changes for changes that no longer exist.

2021-01-15  Richard Sandiford  <richard.sandiford@arm.com>

	* rtl-ssa/functions.h (function_info::ref_defs): Rename to...
	(function_info::reg_defs): ...this.
	* rtl-ssa/member-fns.inl (function_info::ref_defs): Rename to...
	(function_info::reg_defs): ...this.

2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>

	PR target/71233
	* config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.

2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>

	Revert:
	2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>

	PR target/71233
	* config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.

2021-01-15  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/96376
	* tree-vect-stmts.c (get_load_store_type): Disregard alignment
	for VMAT_INVARIANT.

2021-01-15  Martin Liska  <mliska@suse.cz>

	* doc/install.texi: Document that some tests need pytest module.
	* doc/sourcebuild.texi: Likewise.

2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>

	PR target/71233
	* config/arm/arm_neon.h (vceqz_p64, vceqq_p64, vceqzq_p64): New.

2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/mve.md (mve_vshrq_n_s<mode>_imm): New entry.
	(mve_vshrq_n_u<mode>_imm): Likewise.
	* config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Move to ...
	* config/arm/vec-common.md: ... here.

2021-01-15  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/mve.md (mve_vshlq_<supf><mode>): Move to
	vec-commond.md.
	* config/arm/neon.md (vashl<mode>3): Delete.
	* config/arm/vec-common.md (mve_vshlq_<supf><mode>): New.
	(vasl<mode>3): New expander.

2021-01-15  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98685
	* tree-vect-slp.c (vect_schedule_slp_node): Refactor handling
	of vector extern defs.

2021-01-14  David Malcolm  <dmalcolm@redhat.com>

	PR jit/98586
	* diagnostic.c (diagnostic_kind_text): Break out this array
	from...
	(diagnostic_build_prefix): ...here.
	(fancy_abort): Detect when diagnostic_initialize has not yet been
	called and fall back to a minimal implementation of printing the
	ICE, rather than segfaulting in internal_error.

2021-01-14  David Malcolm  <dmalcolm@redhat.com>

	* diagnostic.c (diagnostic_initialize): Eliminate
	parseable_fixits_p in favor of initializing extra_output_kind from
	GCC_EXTRA_DIAGNOSTIC_OUTPUT.
	(convert_column_unit): New function, split out from...
	(diagnostic_converted_column): ...this.
	(print_parseable_fixits): Add "column_unit" and "tabstop" params.
	Use them to call convert_column_unit on the column values.
	(diagnostic_report_diagnostic): Eliminate conditional on
	parseable_fixits_p in favor of a switch statement on
	extra_output_kind, passing the appropriate values to the new
	params of print_parseable_fixits.
	(selftest::test_print_parseable_fixits_none): Update for new
	params of print_parseable_fixits.
	(selftest::test_print_parseable_fixits_insert): Likewise.
	(selftest::test_print_parseable_fixits_remove): Likewise.
	(selftest::test_print_parseable_fixits_replace): Likewise.
	(selftest::test_print_parseable_fixits_bytes_vs_display_columns):
	New.
	(selftest::diagnostic_c_tests): Call it.
	* diagnostic.h (enum diagnostics_extra_output_kind): New.
	(diagnostic_context::parseable_fixits_p): Delete field in favor
	of...
	(diagnostic_context::extra_output_kind): ...this new field.
	* doc/invoke.texi (Environment Variables): Add
	GCC_EXTRA_DIAGNOSTIC_OUTPUT.
	* opts.c (common_handle_option): Update handling of
	OPT_fdiagnostics_parseable_fixits for change to diagnostic_context
	fields.

2021-01-14  Tamar Christina  <tamar.christina@arm.com>

	* tree-vect-slp-patterns.c (class complex_operations_pattern,
	complex_operations_pattern::matches,
	complex_operations_pattern::recognize,
	complex_operations_pattern::build): New.
	(slp_patterns): Use it.

2021-01-14  Tamar Christina  <tamar.christina@arm.com>

	* internal-fn.def (COMPLEX_FMS, COMPLEX_FMS_CONJ): New.
	* optabs.def (cmls_optab, cmls_conj_optab): New.
	* doc/md.texi: Document them.
	* tree-vect-slp-patterns.c (class complex_fms_pattern,
	complex_fms_pattern::matches, complex_fms_pattern::recognize,
	complex_fms_pattern::build): New.

2021-01-14  Tamar Christina  <tamar.christina@arm.com>

	* internal-fn.def (COMPLEX_FMA, COMPLEX_FMA_CONJ): New.
	* optabs.def (cmla_optab, cmla_conj_optab): New.
	* doc/md.texi: Document them.
	* tree-vect-slp-patterns.c (vect_match_call_p,
	class complex_fma_pattern, vect_slp_reset_pattern,
	complex_fma_pattern::matches, complex_fma_pattern::recognize,
	complex_fma_pattern::build): New.

2021-01-14  Tamar Christina  <tamar.christina@arm.com>

	* internal-fn.def (COMPLEX_MUL, COMPLEX_MUL_CONJ): New.
	* optabs.def (cmul_optab, cmul_conj_optab): New.
	* doc/md.texi: Document them.
	* tree-vect-slp-patterns.c (vect_match_call_complex_mla,
	vect_normalize_conj_loc, is_eq_or_top, vect_validate_multiplication,
	vect_build_combine_node, class complex_mul_pattern,
	complex_mul_pattern::matches, complex_mul_pattern::recognize,
	complex_mul_pattern::build): New.

2021-01-14  Tamar Christina  <tamar.christina@arm.com>

	* tree-vect-slp.c (optimize_load_redistribution_1): New.
	(optimize_load_redistribution, vect_is_slp_load_node): New.
	(vect_match_slp_patterns): Use it.

2021-01-14  Tamar Christina  <tamar.christina@arm.com>

	* tree-vect-slp-patterns.c (complex_add_pattern::build):
	Elide nodes.

2021-01-14  Thomas Schwinge  <thomas@codesourcery.com>

	* config/gcn/mkoffload.c (main): Create an offload image only in
	64-bit configurations.

2021-01-14  H.J. Lu  <hjl.tools@gmail.com>

	PR target/98667
	* config/i386/i386-options.c (ix86_option_override_internal):
	Issue an error for -fcf-protection with CF_BRANCH when compiling
	for 32-bit non-TARGET_CMOV targets.

2021-01-14  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/98671
	* config/i386/i386-options.c (ix86_valid_target_attribute_inner_p):
	Remove declaration and initialization of shadow variable "ret".
	(ix86_option_override_internal): Remove delcaration of
	shadow variable "i".  Redeclare shadowed variable to unsigned.
	* common/config/i386/i386-common.c (pta_size): Redeclare to unsigned.
	* config/i386/i386-builtins.c (get_builtin_code_for_version):
	Update for redeclaration.
	* config/i386/i386.h (pta_size): Ditto.

2021-01-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98674
	* tree-data-ref.c (base_supports_access_fn_components_p): New.
	(initialize_data_dependence_relation): For two bases without
	possible access fns resort to type size equality when determining
	shape compatibility.

2021-01-14  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	PR target/66791
	* config/arm/arm_neon.h: Replace calls to __builtin_vcge* by
	<=, >= operators in vcle and vcge intrinsics respectively.
	* config/arm/arm_neon_builtins.def: Remove entry for
	vcge and vcgeu.

2021-01-14  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/98671
	* config/i386/i386-options.c (ix86_function_specific_save):
	Remove redundant assignment to opts->x_ix86_branch_cost.
	* config/i386/i386.c (ix86_prefetch_sse):
	Rename from x86_prefetch_sse.  Update all uses.
	* config/i386/i386.h: Update for rename.
	* config/i386/i386-options.h: Ditto.

2021-01-14  Jakub Jelinek  <jakub@redhat.com>

	PR target/98670
	* config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3,
	*sse4_1_zero_extendv4hiv4si2_3, *sse4_1_zero_extendv2siv2di2_3):
	Use Bm instead of m for non-avx.  Add isa attribute.

2021-01-14  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96688
	* match.pd (~(X >> Y) -> ~X >> Y): New simplification if
	~X can be simplified.

2021-01-14  Richard Sandiford  <richard.sandiford@arm.com>

	* tree-vect-stmts.c (vect_model_load_cost): Account for unused
	IFN_LOAD_LANES results.

2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_<su>xtl<mode>):
	Define.
	(aarch64_xtn<mode>): Likewise.
	* config/aarch64/aarch64-simd-builtins.def (sxtl, uxtl, xtn):
	Define
	builtins.
	* config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
	builtin.
	(vmovl_s16): Likewise.
	(vmovl_s32): Likewise.
	(vmovl_u8): Likewise.
	(vmovl_u16): Likewise.
	(vmovl_u32): Likewise.
	(vmovn_s16): Likewise.
	(vmovn_s32): Likewise.
	(vmovn_s64): Likewise.
	(vmovn_u16): Likewise.
	(vmovn_u32): Likewise.
	(vmovn_u64): Likewise.

2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_<su>qxtn2<mode>_le):
	Define.
	(aarch64_<su>qxtn2<mode>_be): Likewise.
	(aarch64_<su>qxtn2<mode>): Likewise.
	* config/aarch64/aarch64-simd-builtins.def (sqxtn2, uqxtn2):
	Define builtins.
	* config/aarch64/iterators.md (SAT_TRUNC): Define code_iterator.
	(su): Handle ss_truncate and us_truncate.
	* config/aarch64/arm_neon.h (vqmovn_high_s16): Reimplement using
	builtin.
	(vqmovn_high_s32): Likewise.
	(vqmovn_high_s64): Likewise.
	(vqmovn_high_u16): Likewise.
	(vqmovn_high_u32): Likewise.
	(vqmovn_high_u64): Likewise.

2021-01-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_xtn2<mode>_le):
	Define.
	(aarch64_xtn2<mode>_be): Likewise.
	(aarch64_xtn2<mode>): Likewise.
	* config/aarch64/aarch64-simd-builtins.def (xtn2): Define
	builtins.
	* config/aarch64/arm_neon.h (vmovn_high_s16): Reimplement using
	builtins.
	(vmovn_high_s32): Likewise.
	(vmovn_high_s64): Likewise.
	(vmovn_high_u16): Likewise.
	(vmovn_high_u32): Likewise.
	(vmovn_high_u64): Likewise.

2021-01-13  Stafford Horne  <shorne@gmail.com>

	* config/or1k/or1k.h (ASM_PREFERRED_EH_DATA_FORMAT): New macro.

2021-01-13  Stafford Horne  <shorne@gmail.com>

	* config/or1k/linux.h (TARGET_ASM_FILE_END): Define macro.

2021-01-13  Stafford Horne  <shorne@gmail.com>

	* config/or1k/or1k.h (TARGET_CPU_CPP_BUILTINS): Add builtin
	  define for __or1k_hard_float__.

2021-01-13  Stafford Horne  <shorne@gmail.com>

	* config/or1k/or1k.h (NO_PROFILE_COUNTERS): Define as 1.
	(PROFILE_HOOK): Define to call _mcount.
	(FUNCTION_PROFILER): Change from abort to no-op.

2021-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96691
	* match.pd ((~X | C) ^ D -> (X | C) ^ (~D ^ C),
	(~X & C) ^ D -> (X & C) ^ (D ^ C)): New simplifications if
	(~D ^ C) or (D ^ C) can be simplified.

2021-01-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/92645
	* match.pd (BIT_FIELD_REF to conversion): Delay canonicalization
	until after vector lowering.

2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (fnma<mode>4): Extend from SVE_FULL_I
	to SVE_I.
	(@aarch64_pred_fnma<mode>, cond_fnma<mode>, *cond_fnma<mode>_2)
	(*cond_fnma<mode>_4, *cond_fnma<mode>_any): Likewise.

2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (fma<mode>4): Extend from SVE_FULL_I
	to SVE_I.
	(@aarch64_pred_fma<mode>, cond_fma<mode>, *cond_fma<mode>_2)
	(*cond_fma<mode>_4, *cond_fma<mode>_any): Likewise.

2021-01-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/92645
	* tree-vect-slp.c (vect_build_slp_tree_1): Relax supported
	BIT_FIELD_REF argument.
	(vect_build_slp_tree_2): Record the desired vector type
	on the external vector def.
	(vectorizable_slp_permutation): Handle required punning
	of existing vector defs.

2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>

	* rtl-ssa/accesses.h (def_lookup): Fix order of comparison results.

2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>

	* config/sh/sh.md (movsf_ie): Remove operands[2] test.

2021-01-13  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* config.gcc [$target == *-*-gnu*]: Enable
	'default_gnu_indirect_function'.

2021-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR target/95905
	* optabs.c (expand_vec_perm_const): Don't force v0 and v1 into
	registers before calling targetm.vectorize.vec_perm_const, only after
	that.
	* config/i386/i386-expand.c (ix86_vectorize_vec_perm_const): Handle
	two argument permutation when one operand is zero vector and only
	after that force operands into registers.
	* config/i386/sse.md (*avx2_zero_extendv16qiv16hi2_1): New
	define_insn_and_split pattern.
	(*avx512bw_zero_extendv32qiv32hi2_1): Likewise.
	(*avx512f_zero_extendv16hiv16si2_1): Likewise.
	(*avx2_zero_extendv8hiv8si2_1): Likewise.
	(*avx512f_zero_extendv8siv8di2_1): Likewise.
	(*avx2_zero_extendv4siv4di2_1): Likewise.
	* config/mips/mips.c (mips_vectorize_vec_perm_const): Force operands
	into registers.
	* config/arm/arm.c (arm_vectorize_vec_perm_const): Likewise.
	* config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Likewise.
	* config/ia64/ia64.c (ia64_vectorize_vec_perm_const): Likewise.
	* config/aarch64/aarch64.c (aarch64_vectorize_vec_perm_const): Likewise.
	* config/rs6000/rs6000.c (rs6000_vectorize_vec_perm_const): Likewise.
	* config/gcn/gcn.c (gcn_vectorize_vec_perm_const): Likewise.  Use std::swap.

2021-01-13  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/98455
	* gimple-if-to-switch.cc (condition_info::record_phi_mapping):
	Record also virtual PHIs.
	(pass_if_to_switch::execute): Return TODO_cleanup_cfg only
	conditionally.

2021-01-13  Jonathan Wakely  <jwakely@redhat.com>

	* doc/invoke.texi (C++ Modules): Fix typos.

2021-01-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98640
	* tree-ssa-sccvn.c (visit_nary_op): Do not try to
	handle plus or minus from a truncated operand to be
	sign-extended.

2021-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR target/96938
	* config/i386/i386.md (*btr<mode>_1, *btr<mode>_2): New
	define_insn_and_split patterns.
	(splitter after *btr<mode>_2): New splitter.

2021-01-13  Martin Liska  <mliska@suse.cz>

	PR ipa/98652
	* cgraphunit.c (analyze_functions): Remove dead code.

2021-01-13  Qian Jianhua  <qianjh@cn.fujitsu.com>

	* config/aarch64/aarch64-cost-tables.h (a64fx_extra_costs): New.
	* config/aarch64/aarch64.c (a64fx_addrcost_table): New.
	(a64fx_regmove_cost, a64fx_vector_cost): New.
	(a64fx_tunings): Use the new added cost tables.

2021-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR target/95905
	* config/i386/predicates.md (pmovzx_parallel): New predicate.
	* config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3): New
	define_insn_and_split pattern.
	(*sse4_1_zero_extendv4hiv4si2_3): Likewise.
	(*sse4_1_zero_extendv2siv2di2_3): Likewise.

2021-01-13  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn.c (gcn_conditional_register_usage): Remove dead code
	to fix v0 register.

2021-01-13  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn.c (gcn_md_reorg): Fix case where EXEC reg is live
	on entry to a BB.

2021-01-13  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn-valu.md (recip<mode>2<exec>, recip<mode>2): Use unspec
	for reciprocal-approximation instructions.
	(div<mode>3): Use fused multiply-accumulate operations for reciprocal
	refinement and division result.
	* config/gcn/gcn.md (UNSPEC_RCP): New unspec constant.

2021-01-13  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn-valu.md (subdf): Rename to...
	(subdf3): This.

2021-01-12  Martin Liska  <mliska@suse.cz>

	* gcov.c (source_info::debug): Fix printf format for 32-bit hosts.

2021-01-12  Andrea Corallo  <andrea.corallo@arm.com>

	* function-abi.h: Fix typo.

2021-01-12  Christophe Lyon  <christophe.lyon@linaro.org>

	PR target/97875
	PR target/97875
	* config/arm/arm.h (ARM_HAVE_NEON_V8QI_LDST): New macro.
	(ARM_HAVE_NEON_V16QI_LDST, ARM_HAVE_NEON_V4HI_LDST): Likewise.
	(ARM_HAVE_NEON_V8HI_LDST, ARM_HAVE_NEON_V2SI_LDST): Likewise.
	(ARM_HAVE_NEON_V4SI_LDST, ARM_HAVE_NEON_V4HF_LDST): Likewise.
	(ARM_HAVE_NEON_V8HF_LDST, ARM_HAVE_NEON_V4BF_LDST): Likewise.
	(ARM_HAVE_NEON_V8BF_LDST, ARM_HAVE_NEON_V2SF_LDST): Likewise.
	(ARM_HAVE_NEON_V4SF_LDST, ARM_HAVE_NEON_DI_LDST): Likewise.
	(ARM_HAVE_NEON_V2DI_LDST): Likewise.
	(ARM_HAVE_V8QI_LDST, ARM_HAVE_V16QI_LDST): Likewise.
	(ARM_HAVE_V4HI_LDST, ARM_HAVE_V8HI_LDST): Likewise.
	(ARM_HAVE_V2SI_LDST, ARM_HAVE_V4SI_LDST, ARM_HAVE_V4HF_LDST): Likewise.
	(ARM_HAVE_V8HF_LDST, ARM_HAVE_V4BF_LDST, ARM_HAVE_V8BF_LDST): Likewise.
	(ARM_HAVE_V2SF_LDST, ARM_HAVE_V4SF_LDST, ARM_HAVE_DI_LDST): Likewise.
	(ARM_HAVE_V2DI_LDST): Likewise.
	* config/arm/mve.md (*movmisalign<mode>_mve_store): New pattern.
	(*movmisalign<mode>_mve_load): New pattern.
	* config/arm/neon.md (movmisalign<mode>): Move to ...
	* config/arm/vec-common.md: ... here.

2021-01-12  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/97969
	* lra-eliminations.c (eliminate_regs_in_insn): Add transformation
	of pattern 'plus (plus (hard reg, const), pseudo)'.

2021-01-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98550
	* tree-vect-slp.c (vect_record_max_nunits): Check whether
	the group size is a multiple of the vector element count.
	(vect_build_slp_tree_1): When we need to fail because
	the vector type choosen causes unrolling do so lazily
	without affecting matches only at the end to guide group splitting.

2021-01-12  Martin Liska  <mliska@suse.cz>

	PR c++/97284
	* optc-save-gen.awk: Compare also n_target_save vars with
	strcmp.

2021-01-12  Martin Liska  <mliska@suse.cz>

	* gcov.c (source_info::debug): New.
	(print_usage): Add --debug (-D) option.
	(process_args): Likewise.
	(generate_results): Call src->debug after
	accumulate_line_counts.
	(read_graph_file): Properly assign id for EXIT_BLOCK.
	* profile.c (branch_prob): Dump function body before it is
	instrumented.

2021-01-12  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/98629
	* tree-ssa-math-opts.c (arith_overflow_check_p): Don't update use_stmt
	unless returning non-zero.

2021-01-12  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/95731
	* tree-ssa-reassoc.c (optimize_range_tests_cmp_bitwise): Also optimize
	x < 0 && y < 0 && z < 0 into (x | y | z) < 0 for signed x, y, z.
	(optimize_range_tests): Call optimize_range_tests_cmp_bitwise
	only after optimize_range_tests_var_bound.

2021-01-12  Jakub Jelinek  <jakub@redhat.com>

	* configure.ac: Ensure c/Make-lang.in comes first in @all_lang_makefrags@.
	* configure: Regenerated.

2021-01-12  liuhongt  <hongtao.liu@intel.com>

	PR target/98612
	* config/i386/i386-builtins.h (BUILTIN_DESC_SWAP_OPERANDS):
	Deleted.
	* config/i386/i386-expand.c (ix86_expand_sse_comi): Delete
	dead code.

2021-01-12  Alexandre Oliva  <oliva@adacore.com>

	* ssa-iterators.h (end_imm_use_stmt_traverse): Forward
	declare.
	(auto_end_imm_use_stmt_traverse): New struct.
	(FOR_EACH_IMM_USE_STMT): Use it.
	(BREAK_FROM_IMM_USE_STMT, RETURN_FROM_IMM_USE_STMT): Remove,
	along with uses...
	* gimple-ssa-strength-reduction.c: ... here, ...
	* graphite-scop-detection.c: ... here, ...
	* ipa-modref.c, ipa-pure-const.c, ipa-sra.c: ... here, ...
	* tree-predcom.c, tree-ssa-ccp.c: ... here, ...
	* tree-ssa-dce.c, tree-ssa-dse.c: ... here, ...
	* tree-ssa-loop-ivopts.c, tree-ssa-math-opts.c: ... here, ...
	* tree-ssa-phiprop.c, tree-ssa.c: ... here, ...
	* tree-vect-slp.c: ... and here, ...
	* doc/tree-ssa.texi: ... and the example here.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (sdiv_pow2<mode>3): Extend from
	SVE_FULL_I to SVE_I.  Generate an UNSPEC_PRED_X.
	(*sdiv_pow2<mode>3): New pattern.
	(@cond_<sve_int_op><mode>): Extend from SVE_FULL_I to SVE_I.
	Wrap the ASRD in an UNSPEC_PRED_X.
	(*cond_<sve_int_op><mode>_2): Likewise.  Replace the UNSPEC_PRED_X
	predicate with a constant PTRUE, if it isn't already.
	(*cond_<sve_int_op><mode>_z): Replace with...
	(*cond_<sve_int_op><mode>_any): ...this new pattern.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (*cond_bic<mode>_2): Extend from
	SVE_FULL_I to SVE_I.
	(*cond_bic<mode>_any): Likewise.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart)
	(@aarch64_pred_<MUL_HIGHPART:optab><mode>): Extend from SVE_FULL_I
	to SVE_I.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (<su>abd<mode>_3): Extend from
	SVE_FULL_I to SVE_I.
	(*aarch64_cond_<su>abd<mode>_2): Likewise.
	(*aarch64_cond_<su>abd<mode>_any): Likewise.
	(@aarch64_pred_<su>abd<mode>): Likewise.  Use UNSPEC_PRED_X
	for the max and min but not for the minus.
	(*aarch64_cond_<su>abd<mode>_3): New pattern.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/iterators.md (SVE_24I): New iterator.
	* config/aarch64/aarch64-sve.md (*aarch64_adr<mode>_shift): Extend from
	SVE_FULL_SDI to SVE_24I.  Use containers rather than elements.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (@cond_<SVE_INT_BINARY:optab><mode>)
	(*cond_<SVE_INT_BINARY:optab><mode>_2): Extend from SVE_FULL_I
	to SVE_I.
	(*cond_<SVE_INT_BINARY:optab><mode>_3): Likewise.
	(*cond_<SVE_INT_BINARY:optab><mode>_any): Likewise.
	(*cond_<SVE_INT_BINARY:optab><mode>_2_const): Likewise.
	(*cond_<SVE_INT_BINARY:optab><mode>_any_const): Likewise.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (<SVE_INT_BINARY_IMM:optab><mode>3)
	(@aarch64_pred_<SVE_INT_BINARY_IMM:optab><mode>)
	(*post_ra_<SVE_INT_BINARY_IMM:optab><mode>3): Extend from SVE_FULL_I
	to SVE_I.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (<ASHIFT:optab><mode>3)
	(v<ASHIFT:optab><mode>3, @aarch64_pred_<optab><mode>)
	(*post_ra_v<ASHIFT:optab><mode>3): Extend from SVE_FULL_I to SVE_I.

2021-01-11  Martin Liska  <mliska@suse.cz>

	PR jit/98615
	* symtab-clones.h (clone_info::release): Release
	symtab::m_clones with ggc_delete as it's a GGC memory.

2021-01-11  Matthias Klose  <doko@ubuntu.com>

	* Makefile.in (LINK_PROGRESS): Show the link target.

2021-01-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/91403
	* tree-vect-data-refs.c (vect_analyze_group_access_1): Cap
	single-element interleaving group size at 4096 elements.

2021-01-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98526
	* tree-vect-loop.c (vect_model_reduction_cost): Remove costing
	of the actual reduction op for the regular case.
	(vectorizable_reduction): Cost the stmts
	vect_transform_reduction produces here.

2021-01-11  Andreas Krebbel  <krebbel@linux.ibm.com>

	* tree-ssa-forwprop.c (simplify_vector_constructor): For
	big-endian, use UNPACK[_FLOAT]_HI.

2021-01-11  Tamar Christina  <tamar.christina@arm.com>

	* tree-vect-slp-patterns.c (class complex_pattern,
	class complex_add_pattern): Add parameters to matches.
	(complex_add_pattern::build): Free memory.
	(complex_add_pattern::matches): Move validation end of match.
	(complex_add_pattern::recognize): Likewise.

2021-01-11  Tamar Christina  <tamar.christina@arm.com>

	* tree-vect-slp-patterns.c (linear_loads_p): Fix externals.

2021-01-11  Tamar Christina  <tamar.christina@arm.com>

	* tree-vect-slp-patterns.c (is_linear_load_p): Fix ambiguity.

2021-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/95867
	* tree-ssa-math-opts.h: New header.
	* tree-ssa-math-opts.c: Include tree-ssa-math-opts.h.
	(powi_as_mults): No longer static.  Use build_one_cst instead of
	build_real.  Formatting fix.
	* tree-ssa-reassoc.c: Include tree-ssa-math-opts.h.
	(attempt_builtin_powi): Handle multiplication reassociation without
	powi_fndecl using powi_as_mults.
	(reassociate_bb): For integral types don't require
	-funsafe-math-optimizations to call attempt_builtin_powi.

2021-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/95852
	* tree-ssa-math-opts.c (maybe_optimize_guarding_check): Change
	mul_stmts parameter type to vec<gimple *> &.  Before cond_stmt
	allow in the bb any of the stmts in that vector, div_stmt and
	up to 3 cast stmts.
	(arith_cast_equal_p): New function.
	(arith_overflow_check_p): Add cast_stmt argument, handle signed
	multiply overflow checks.
	(match_arith_overflow): Adjust caller.  Handle signed multiply
	overflow checks.

2021-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/95852
	* tree-ssa-math-opts.c (maybe_optimize_guarding_check): New function.
	(uaddsub_overflow_check_p): Renamed to ...
	(arith_overflow_check_p): ... this.  Handle also multiplication
	with overflow check.
	(match_uaddsub_overflow): Renamed to ...
	(match_arith_overflow): ... this.  Add cfg_changed argument.  Handle
	also multiplication with overflow check.  Adjust function comment.
	(math_opts_dom_walker::after_dom_children): Adjust callers.  Call
	match_arith_overflow also for MULT_EXPR.

2021-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
	__builtin_convertvector.
	(vmovl_s16): Likewise.
	(vmovl_s32): Likewise.
	(vmovl_u8): Likewise.
	(vmovl_u16): Likewise.
	(vmovl_u32): Likewise.
	(vmovn_s16): Likewise.
	(vmovn_s32): Likewise.
	(vmovn_s64): Likewise.
	(vmovn_u16): Likewise.
	(vmovn_u32): Likewise.
	(vmovn_u64): Likewise.

2021-01-11  Martin Liska  <mliska@suse.cz>

	* gimple-if-to-switch.cc (struct condition_info): Use auto_var.
	(if_chain::is_beneficial): Delete clusters
	(find_conditions): Make second argument of conditions_in_bbs a
	pointer so that we control over it's lifetime.
	(pass_if_to_switch::execute): Delete them.

2021-01-11  Kewen Lin  <linkw@linux.ibm.com>

	* ira.c (move_unallocated_pseudos): Check other_reg and skip if
	it isn't set.

2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>

	* config/vax/vax.md (cc): Remove mode attribute.
	(subst_<cc>, subst_f<cc>): Rename to...
	(subst_<mode>, subst_f<VAXccnz:mode>): ... these respectively.
	(*cbranch<VAXint:mode>4_<VAXcc:mode>): Update for `cc' removal.
	(*cbranch<VAXfp:mode>4_<VAXccnz:mode>): Likewise.
	(*branch_<mode>, *branch_<mode>_reversed): Likewise.

2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>

	* config/vax/vax.md (subst_f<cc>): Add mode to operands and
	`const_double_zero'.

2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>

	* config/pdp11/pdp11.md (PDPfp): New mode iterator.
	(fcc_cc, fcc_ccnz): Use it.  Add mode to `const_double_zero' and
	operands.

2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>

	* genemit.c (gen_exp) <CONST_DOUBLE>: Handle `const_double_zero'
	rtx.
	* read-rtl.c (rtx_reader::read_rtx_code): Handle machine mode
	with `const_double_zero'.
	* doc/rtl.texi (Constant Expression Types): Document it.

2021-01-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/98556
	* tree-cfg.c (verify_gimple_assign_binary): Allow lhs of
	POINTER_DIFF_EXPR to be any integral type.

2021-01-09  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/98603
	* function.c (instantiate_virtual_regs_in_insn): For asm goto
	with impossible constraints, drop all SETs, CLOBBERs, drop PARALLEL
	if any, set ASM_OPERANDS mode to VOIDmode and change
	ASM_OPERANDS_OUTPUT_CONSTRAINT and ASM_OPERANDS_OUTPUT_IDX.

2021-01-09  Alexandre Oliva  <oliva@gnu.org>

	PR debug/97714
	* final.c (notice_source_line): Narrow down the condition to
	skip a line-0 marker.

2021-01-08  Sergei Trofimovich  <siarheit@google.com>

	* ipa-modref.c (merge_call_side_effects): Fix
	linebreak split by reordering two print calls.

2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/vector.md (*tf_to_fprx2_0): Rename from
	"*mov_tf_to_fprx2_0" for consistency, fix constraint.
	(*tf_to_fprx2_1): Rename from "*mov_tf_to_fprx2_1" for
	consistency, fix constraint.

2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/s390-c.c (s390_def_or_undef_macro): Accept
	callables instead of mask values.
	(struct target_flag_set_p): New predicate.
	(s390_cpu_cpp_builtins_internal): Define or undefine
	__LONG_DOUBLE_VX__ macro.

2021-01-08  H.J. Lu  <hjl.tools@gmail.com>

	PR target/98482
	* config/i386/i386.c (x86_function_profiler): Use R10 and R11
	to call mcount in large model with PIC for NO_PROFILE_COUNTERS
	targets.

2021-01-08  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.c (pass_fre::execute): Reset the SCEV hash table.

2021-01-08  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (scalar_stmts_to_slp_tree_map_t): Fix.
	(vect_build_slp_tree): On cache hit release the matched
	scalar stmts vector.
	* tree-vect-stmts.c (vectorizable_store): Properly free
	vec_oprnds before possibly gathering them again.

2021-01-08  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98544
	* tree-vect-slp.c (vect_optimize_slp): Always materialize
	permutes at a permute node.

2021-01-08  H.J. Lu  <hjl.tools@gmail.com>

	PR target/98482
	* config/i386/i386.c (x86_function_profiler): Use R10 to call
	mcount in large model.  Sorry for large model with PIC.

2021-01-08  Jakub Jelinek  <jakub@redhat.com>

	PR target/98585
	* config/i386/i386.opt (ix86_cmodel, ix86_incoming_stack_boundary_arg,
	ix86_pmode, ix86_preferred_stack_boundary_arg, ix86_regparm,
	ix86_veclibabi_type): Remove x_ prefix, use TargetVariable instead of
	TargetSave and initialize for variables with enum types.
	(mfentry, mstack-protector-guard-reg=, mstack-protector-guard-offset=,
	mstack-protector-guard-symbol=): Add Save.
	* config/i386/i386-options.c (ix86_function_specific_save,
	ix86_function_specific_restore): Don't save or restore x_ix86_cmodel,
	x_ix86_incoming_stack_boundary_arg, x_ix86_pmode,
	x_ix86_preferred_stack_boundary_arg, x_ix86_regparm,
	x_ix86_veclibabi_type.

2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (*cnot<mode>): Extend from
	SVE_FULL_I to SVE_I.
	(*cond_cnot<mode>_2, *cond_cnot<mode>_any): Likewise.

2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (*cond_uxt<mode>_2): Extend from
	SVE_FULL_I to SVE_I.
	(*cond_uxt<mode>_any): Likewise.

2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/iterators.md (Vwhalf): New iterator.
	* config/aarch64/aarch64-simd.md (aarch64_<sur>adalp<mode>_3):
	Rename to...
	(aarch64_<sur>adalp<mode>): ... This.  Make more
	builtin-friendly.
	(<sur>sadv16qi): Adjust callsite of the above.
	* config/aarch64/aarch64-simd-builtins.def (sadalp, uadalp): New
	builtins.
	* config/aarch64/arm_neon.h (vpadal_s8): Reimplement using
	builtins.
	(vpadal_s16): Likewise.
	(vpadal_u8): Likewise.
	(vpadal_u16): Likewise.
	(vpadalq_s8): Likewise.
	(vpadalq_s16): Likewise.
	(vpadalq_s32): Likewise.
	(vpadalq_u8): Likewise.
	(vpadalq_u16): Likewise.
	(vpadalq_u32): Likewise.

2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_<su>abd<mode>_3):
	Rename to...
	(aarch64_<su>abd<mode>): ... This.
	(<sur>sadv16qi): Adjust callsite of the above.
	* config/aarch64/aarch64-simd-builtins.def (sabd, uabd): Define
	builtins.
	* config/aarch64/arm_neon.h (vabd_s8): Reimplement using
	builtin.
	(vabd_s16): Likewise.
	(vabd_s32): Likewise.
	(vabd_u8): Likewise.
	(vabd_u16): Likewise.
	(vabd_u32): Likewise.
	(vabdq_s8): Likewise.
	(vabdq_s16): Likewise.
	(vabdq_s32): Likewise.
	(vabdq_u8): Likewise.
	(vabdq_u16): Likewise.
	(vabdq_u32): Likewise.

2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (saba, uaba): Define
	builtins.
	* config/aarch64/arm_neon.h (vaba_s8): Implement using builtin.
	(vaba_s16): Likewise.
	(vaba_s32): Likewise.
	(vaba_u8): Likewise.
	(vaba_u16): Likewise.
	(vaba_u32): Likewise.
	(vabaq_s8): Likewise.
	(vabaq_s16): Likewise.
	(vabaq_s32): Likewise.
	(vabaq_u8): Likewise.
	(vabaq_u16): Likewise.
	(vabaq_u32): Likewise.

2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md (aba<mode>_3): Rename to...
	(aarch64_<su>aba<mode>): ... This.  Handle uaba as well.
	Change RTL pattern to match.

2021-01-08  Kito Cheng  <kito.cheng@sifive.com>

	* common/config/riscv/riscv-common.c (riscv_current_subset_list): New.
	* config/riscv/riscv-c.c (riscv-subset.h): New.
	(INCLUDE_STRING): Define.
	(riscv_cpu_cpp_builtins): Add new style architecture extension
	test macros.
	* config/riscv/riscv-subset.h (riscv_subset_list::begin): New.
	(riscv_subset_list::end): New.
	(riscv_current_subset_list): New.

2021-01-08  Kito Cheng  <kito.cheng@sifive.com>

	* common/config/riscv/riscv-common.c (RISCV_DONT_CARE_VERSION):
	Move to riscv-subset.h.
	(struct riscv_subset_t): Ditto.
	(class riscv_subset_list): Ditto.
	* config/riscv/riscv-subset.h (RISCV_DONT_CARE_VERSION): Move
	from riscv-common.c.
	(struct riscv_subset_t): Ditto.
	(class riscv_subset_list): Ditto.
	* config/riscv/t-riscv ($(common_out_file)): Add file
	dependency.

2021-01-07  Jakub Jelinek  <jakub@redhat.com>

	PR target/98567
	* config/i386/i386.md (*bmi_blsi_<mode>_cmp, *bmi_blsi_<mode>_ccno):
	New define_insn patterns.

2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (@cond_<SVE_INT_UNARY:optab><mode>)
	(*cond_<SVE_INT_UNARY:optab><mode>_2): Extend from SVE_FULL_I to SVE_I.
	(*cond_<SVE_INT_UNARY:optab><mode>_any): Likewise.

2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/98560
	* internal-fn.def (IFN_VCONDU, IFN_VCONDEQ): Use type vec_cond.
	* internal-fn.c (vec_cond_mask_direct): Get the data mode from
	argument 1.
	(vec_cond_direct): Likewise argument 2.
	(vec_condu_direct, vec_condeq_direct): Delete.
	(expand_vect_cond_optab_fn): Rename to...
	(expand_vec_cond_optab_fn): ...this, replacing old macro.
	(expand_vec_condu_optab_fn, expand_vec_condeq_optab_fn): Delete.
	(expand_vect_cond_mask_optab_fn): Rename to...
	(expand_vec_cond_mask_optab_fn): ...this, replacing old macro.
	(direct_vec_cond_mask_optab_supported_p): Treat the optab as a
	convert optab.
	(direct_vec_cond_optab_supported_p): Likewise.
	(direct_vec_condu_optab_supported_p): Delete.
	(direct_vec_condeq_optab_supported_p): Delete.
	* gimple-isel.cc: Include internal-fn.h.
	(gimple_expand_vec_cond_expr): Check that IFN_VCONDEQ is supported
	before using it.

2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/98560
	* gimple-isel.cc (gimple_expand_vec_cond_expr): If we fail to use
	IFN_VCOND{,U,EQ}, fall back on IFN_VCOND_MASK.

2021-01-07  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (insn): Merge from plusminus_insn, shift_insn,
	rotate_insn and optab code attributes.
	Update all uses to merged code attribute.
	* config/i386/sse.md: Update all uses to merged code attribute.
	* config/i386/mmx.md: Update all uses to merged code attribute.

2021-01-07  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/98568
	* gimple-ssa-store-merging.c (bswap_view_convert): New function.
	(bswap_replace): Use it.

2021-01-06  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/97978
	* lra-int.h (lra_hard_reg_split_p): New external.
	* lra.c (lra_hard_reg_split_p): New global.
	(lra): Set up lra_hard_reg_split_p after splitting a hard reg.
	* lra-assigns.c (lra_assign): Don't check allocation correctness
	after hard reg splitting.

2021-01-06  Martin Sebor  <msebor@redhat.com>

	PR c++/98305
	* builtins.c (new_delete_mismatch_p): New overload.
	(new_delete_mismatch_p (tree, tree)): Call it.

2021-01-06  Alexandre Oliva  <oliva@adacore.com>

	* Makefile.in (T_GLIMITS_H): New.
	(stmp-int-hdrs): Depend on it, use it.
	* config/t-vxworks (T_GLIMITS_H): Override it.
	(vxw-glimits.h): New.

2021-01-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98513
	* value-range.cc (intersect_ranges): Compare the upper bounds
	for the expected relation.

2021-01-06  Gerald Pfeifer  <gerald@pfeifer.com>

	Revert:
	2020-12-28  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/standards.texi (HSAIL): Remove section.

2021-01-05  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* configure: Re-generate.

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	* doc/invoke.texi (-std=c++20): Adjust for the publication of
	ISO 14882:2020 standard.
	* doc/standards.texi: Likewise.

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/94802
	* expr.h (maybe_optimize_sub_cmp_0): Declare.
	* expr.c: Include tree-pretty-print.h and flags.h.
	(maybe_optimize_sub_cmp_0): New function.
	(do_store_flag): Use it.
	* cfgexpand.c (expand_gimple_cond): Likewise.

2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>

	* mux-utils.h (pointer_mux::m_ptr): Tweak description of contents.
	* rtlanal.c (simple_regno_set): Tweak description to clarify the
	RMW condition.

2021-01-05  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98516
	* tree-vect-slp.c (vect_optimize_slp): Permute the incoming
	lanes when materializing on a VEC_PERM node.
	(vectorizable_slp_permutation): Dump the permute properly.

2021-01-05  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (vect_slp_region): Move debug counter
	to cover individual subgraphs.

2021-01-05  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98428
	* tree-vect-slp.c (vect_build_slp_tree_1): Properly reject
	vector lane extracts for loop vectorization.

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/98514
	* tree-ssa-reassoc.c (bb_rank): Change type from long * to
	int64_t *.
	(operand_rank): Change type from hash_map<tree, long> to
	hash_map<tree, int64_t>.
	(phi_rank): Change return type from long to int64_t.
	(loop_carried_phi): Change block_rank variable type from long to
	int64_t.
	(propagate_rank): Change return type, rank parameter type and
	op_rank variable type from long to int64_t.
	(find_operand_rank): Change return type from long to int64_t
	and change slot variable type from long * to int64_t *.
	(insert_operand_rank): Change rank parameter type from long to
	int64_t.
	(get_rank): Change return type and rank variable type from long to
	int64_t.  Use PRId64 instead of ld to print the rank.
	(init_reassoc): Change rank variable type from long to int64_t
	and adjust correspondingly bb_rank and operand_rank initialization.

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96928
	* tree-ssa-phiopt.c (xor_replacement): New function.
	(tree_ssa_phiopt_worker): Call it.

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96930
	* match.pd ((A / (1 << B)) -> (A >> B)): If A is extended
	from narrower value which has the same type as 1 << B, perform
	the right shift on the narrower value followed by extension.

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96239
	* gimple-ssa-store-merging.c (maybe_optimize_vector_constructor): New
	function.
	(get_status_for_store_merging): Don't return BB_INVALID for blocks
	with potential bswap optimizable CONSTRUCTORs.
	(pass_store_merging::execute): Optimize vector CONSTRUCTORs with bswap
	if possible.

2021-01-05  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98381
	* tree.c (vector_element_bits): Properly compute bool vector
	element size.
	* tree-vect-loop.c (vectorizable_live_operation): Properly
	compute the last lane bit offset.

2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/98522
	* config/i386/sse.md (sse_cvtps2pi): Redefine as define_insn_and_split.
	Clear the top 64 bytes of the input XMM register.
	(sse_cvttps2pi): Ditto.

2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/98521
	* config/i386/xopintrin.h (_mm256_cmov_si256): New.

2021-01-05  H.J. Lu  <hjl.tools@gmail.com>

	PR target/98495
	* config/i386/xmmintrin.h (_mm_extract_pi16): Cast to unsigned
	short first.

2021-01-05  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (maddsidi4_split): Use ACC_REG_FIRST.
	(umaddsidi4_split): Likewise.

2021-01-05  liuhongt  <hongtao.liu@intel.com>

	PR target/98461
	* config/i386/sse.md (*sse2_pmovskb_zexthisi): New
	define_insn_and_split for zero_extend of subreg HI of pmovskb
	result.
	(*sse2_pmovskb_zexthisi): Add new combine splitters for
	zero_extend of not of subreg HI of pmovskb result.

2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>

	PR target/97269
	* explow.c (convert_memory_address_addr_space_1): Handle UNSPECs
	nested in CONSTs.
	* config/aarch64/aarch64.c (aarch64_expand_mov_immediate): Use
	convert_memory_address to convert symbolic immediates to ptr_mode
	before forcing them to memory.

2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>

	PR rtl-optimization/97144
	* recog.c (constrain_operands): Initialize matching_operand
	for each alternative, rather than only doing it once.

2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>

	PR rtl-optimization/98403
	* rtl-ssa/changes.cc (function_info::finalize_new_accesses): Explain
	why we don't remove call clobbers.
	(function_info::apply_changes_to_insn): Don't attempt to add
	call clobbers here.

2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/98371
	* tree-vect-loop.c (vect_reanalyze_as_main_loop): New function.
	(vect_analyze_loop): If an epilogue loop appears to be cheaper
	than the main loop, re-analyze it as a main loop before adopting
	it as a main loop.

2021-01-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR c++/98316
	* configure.ac (NETLIBS): Determine using AX_LIB_SOCKET_NSL.
	* aclocal.m4, configure: Regenerate.
	* Makefile.in (NETLIBS): Define.
	(BACKEND): Remove $(CODYLIB).

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/98334
	* simplify-rtx.c (simplify_context::simplify_binary_operation_1):
	Optimize (X - 1) * Y + Y to X * Y or (X + 1) * Y - Y to X * Y.

2021-01-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* tree-inline.c (expand_call_inline): Restore input_location.
	Return result from recursive call.

2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/95401
	* config/aarch64/aarch64-sve-builtins.cc
	(gimple_folder::load_store_cookie): Use bits rather than bytes
	for the alignment argument to IFN_MASK_LOAD and IFN_MASK_STORE.
	* gimple-fold.c (gimple_fold_mask_load_store_mem_ref): Likewise.
	* tree-vect-stmts.c (vectorizable_store): Likewise.
	(vectorizable_load): Likewise.

2021-01-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98308
	* tree-vect-stmts.c (vectorizable_load): Set invariant mask
	SLP vectype.

2021-01-04  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/95771
	* tree-ssa-loop-niter.c (number_of_iterations_popcount): Handle types
	with precision smaller than int's precision and types with precision
	twice as large as long long.  Formatting fixes.

2021-01-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98464
	* tree-ssa-sccvn.c (vn_valueize_for_srt): Rename from ...
	(vn_valueize_wrapper): ... this.  Temporarily adjust vn_context_bb.
	(process_bb): Adjust.

2021-01-04  Matthew Malcomson  <matthew.malcomson@arm.com>

	PR other/98437
	* doc/invoke.texi (-fsanitize=address): Fix wording describing
	clash with -fsanitize=hwaddress.

2021-01-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98282
	* tree-ssa-sccvn.c (vn_get_stmt_kind): Classify tcc_reference on
	invariants as VN_NARY.

2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>

	PR target/89057
	* config/aarch64/aarch64-simd.md (aarch64_combine<mode>): Accept
	aarch64_simd_reg_or_zero for operand 2.  Use the combinez patterns
	to handle zero operands.

2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (offset_6bit_signed_scaled_p): New function.
	(offset_6bit_unsigned_scaled_p): Fix typo in comment.
	(aarch64_sve_prefetch_operand_p): Accept MUL VLs in the range
	[-32, 31].

2021-01-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98393
	* tree-vect-slp.c (vect_build_slp_tree): Properly zero matches
	when hitting the limit.

2021-01-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98291
	* tree-vect-loop.c (vectorizable_reduction): Bypass
	associativity check for SLP reductions with VF 1.

2021-01-04  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96782
	* match.pd (x == ~x -> false, x != ~x -> true): New simplifications.

2021-01-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* collect-utils.c (collect_execute): Check dumppfx.
	* collect2.c (maybe_run_lto_and_relink, do_link): Pass atsuffix
	to collect_execute.
	(do_link): Add new parameter atsuffix.
	(main): Handle -dumpdir option.  Skip one argument for
	-o, -isystem and -B options.
	* gcc.c (make_at_file): New helper function.
	(close_at_file): Use it.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.h (MIN_LD64_NO_COAL_SECTS): Adjust.
	Amend handling for LD64_VERSION fallback defaults.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config.gcc: Compute default version information
	from the configured target.  Likewise defaults for
	ld64.
	* config/darwin10.h: Removed.
	* config/darwin12.h: Removed.
	* config/darwin9.h: Removed.
	* config/rs6000/darwin8.h: Removed.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin9.h (ASM_OUTPUT_ALIGNED_COMMON): Delete.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin9.h (STACK_CHECK_STATIC_BUILTIN): Move from here..
	* config/darwin.h (STACK_CHECK_STATIC_BUILTIN): .. to here.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move from
	here...
	* config/darwin.h (LINK_GCC_C_SEQUENCE_SPEC): ... to here.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move the spec
	for the Darwin10 unwinder stub from here ...
	* config/darwin.h (LINK_COMMAND_SPEC_A): ... to here.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.h (DSYMUTIL_SPEC): Default to DWARF
	(ASM_DEBUG_SPEC):Only define if the assembler supports
	stabs.
	(PREFERRED_DEBUGGING_TYPE): Default to DWARF.
	(DARWIN_PREFER_DWARF): Define.
	* config/darwin9.h (PREFERRED_DEBUGGING_TYPE): Remove.
	(DARWIN_PREFER_DWARF): Likewise
	(DSYMUTIL_SPEC): Likewise.
	(COLLECT_RUN_DSYMUTIL): Likewise.
	(ASM_DEBUG_SPEC): Likewise.
	(ASM_DEBUG_OPTION_SPEC): Likewise.

2021-01-02  Jan Hubicka  <jh@suse.cz>

	* cfg.c (free_block): ggc_free bb.

2021-01-01  Jakub Jelinek  <jakub@redhat.com>

	* gcc.c (process_command): Update copyright notice dates.
	* gcov-dump.c (print_version): Ditto.
	* gcov.c (print_version): Ditto.
	* gcov-tool.c (print_version): Ditto.
	* gengtype.c (create_file): Ditto.
	* doc/cpp.texi: Bump @copying's copyright year.
	* doc/cppinternals.texi: Ditto.
	* doc/gcc.texi: Ditto.
	* doc/gccint.texi: Ditto.
	* doc/gcov.texi: Ditto.
	* doc/install.texi: Ditto.
	* doc/invoke.texi: Ditto.

2021-01-01  Jakub Jelinek  <jakub@redhat.com>

	* ChangeLog-2020: Rotate ChangeLog.  New file.


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