2023-06-23  David Malcolm  <dmalcolm@redhat.com>

	PR c++/110164
	* cp-name-hint.h (maybe_suggest_missing_header): New decl.
	* decl.cc: Define INCLUDE_MEMORY.  Add include of
	"cp/cp-name-hint.h".
	(start_decl_1): Call maybe_suggest_missing_header.
	* name-lookup.cc (maybe_suggest_missing_header): Remove "static".

2023-06-16  Alex Coplan  <alex.coplan@arm.com>

	* parser.cc (cp_parser_enum_specifier): Don't reject
	elaborated-type-specifier with enum-base, instead emit new
	Welaborated-enum-base warning.

2023-06-14  Jason Merrill  <jason@redhat.com>

	DR 2327
	PR c++/86521
	* call.cc (joust_maybe_elide_copy): Don't change cand.
	(joust): Move the elided tiebreaker later.

2023-06-13  David Malcolm  <dmalcolm@redhat.com>

	PR c/84890
	* name-lookup.cc (missing_std_header::~missing_std_header): Reword
	note to avoid negative tone of "forgetting".

2023-06-13  Jason Merrill  <jason@redhat.com>

	* tree.cc (build_target_expr): Check TYPE_HAS_MUTABLE_P.

2023-06-12  Tobias Burnus  <tobias@codesourcery.com>

	* parser.cc (cp_parser_omp_clause_map): Reword error message for
	clearness especially with 'omp target (enter/exit) data.'
	* semantics.cc (handle_omp_array_sections): Handle
	GOMP_MAP_{ALWAYS_,}PRESENT_{TO,TOFROM,FROM,ALLOC} enum values.

2023-06-12  Jason Merrill  <jason@redhat.com>

	PR c++/105838
	* call.cc (convert_like_internal) [ck_list]: Use
	maybe_init_list_as_array.
	* constexpr.cc (cxx_eval_vec_init_1): Init might have
	a different type.
	* tree.cc (build_vec_init_elt): Likewise.
	* init.cc (build_vec_init): Handle from_array from a
	TARGET_EXPR.  Retain TARGET_EXPR of a different type.

2023-06-11  Patrick Palka  <ppalka@redhat.com>

	PR c++/110122
	* constexpr.cc (cxx_eval_call_expression): Synthesize defaulted
	functions needed for constant evaluation.
	(instantiate_cx_fn_r): Likewise.

2023-06-11  Patrick Palka  <ppalka@redhat.com>

	PR c++/110122
	* pt.cc (lookup_template_class): Extend shortcut for looking up the
	current class scope to consider outer class scopes too, and use
	current_nonlambda_class_type instead of current_class_type.  Only
	call coerce_template_parms when specializing a primary template.

2023-06-10  Nathan Sidwell  <nathan@acm.org>

	PR c++/61663
	* pt.cc (maybe_adjust_types_for_deduction): Implement DR976.

2023-06-09  Jason Merrill  <jason@redhat.com>

	PR c++/110185
	PR c++/58487
	* method.cc (build_comparison_op): Give retval a name.
	* typeck.cc (check_return_expr): Fix for nameless variables.

2023-06-09  Jason Merrill  <jason@redhat.com>

	* parser.cc (cp_parser_simple_type_specifier): Check for auto
	in template argument.
	(cp_parser_template_type_arg): Remove auto checking.

2023-06-09  Jason Merrill  <jason@redhat.com>

	PR c++/110102
	* call.cc (maybe_init_list_as_array): Check that the element type is
	copyable.

2023-06-07  Jason Merrill  <jason@redhat.com>

	PR c++/58487
	PR c++/53637
	* cp-tree.h (INIT_EXPR_NRV_P): New.
	* semantics.cc (finalize_nrv_r): Check it.
	* name-lookup.h (decl_in_scope_p): Declare.
	* name-lookup.cc (decl_in_scope_p): New.
	* typeck.cc (check_return_expr): Allow non-NRV
	returns if the NRV is no longer in scope.

2023-06-07  Jason Merrill  <jason@redhat.com>

	PR c++/58487
	* typeck.cc (want_nrvo_p): New.
	(check_return_expr): Handle -Wnrvo.

2023-06-07  Jason Merrill  <jason@redhat.com>

	PR c++/51571
	PR c++/92407
	* decl.cc (finish_function): Simplify NRV handling.
	* except.cc (maybe_set_retval_sentinel): Also set if NRV.
	(maybe_splice_retval_cleanup): Don't add the cleanup region
	if we don't need it.
	* semantics.cc (nrv_data): Add simple field.
	(finalize_nrv): Set it.
	(finalize_nrv_r): Check it and retval sentinel.
	* cp-tree.h (finalize_nrv): Adjust declaration.
	* typeck.cc (check_return_expr): Remove named_labels check.

2023-06-07  Jason Merrill  <jason@redhat.com>

	PR c++/92407
	* typeck.cc (check_return_expr): Prevent NRV in the presence of
	named labels.

2023-06-07  Jason Merrill  <jason@redhat.com>

	PR c++/33799
	* except.cc (maybe_splice_retval_cleanup): Change
	recognition of function body and try scopes.
	* semantics.cc (do_poplevel): Call it after poplevel.
	(at_try_scope): New.
	* cp-tree.h (maybe_splice_retval_cleanup): Adjust.

2023-06-07  Jason Merrill  <jason@redhat.com>

	* semantics.cc (finalize_nrv_r): [RETURN_EXPR]: Only replace the
	INIT_EXPR.

2023-06-06  Kwok Cheung Yeung  <kcy@codesourcery.com>
	    Tobias Burnus  <tobias@codesourcery.com>

	* parser.cc (cp_parser_omp_clause_defaultmap,
	cp_parser_omp_clause_map): Parse 'present'.
	(cp_parser_omp_clause_from_to): New; parse to/from
	clauses with optional 'present' modifier.
	(cp_parser_omp_all_clauses): Update call.
	(cp_parser_omp_target_data, cp_parser_omp_target_enter_data,
	cp_parser_omp_target_exit_data): Handle new enum value for
	'present' mapping.
	* semantics.cc (finish_omp_target): Likewise.

2023-06-04  Jason Merrill  <jason@redhat.com>

	PR c++/97720
	* cp-tree.h (enum cp_tree_index): Add CPTI_CALL_TERMINATE_FN.
	(call_terminate_fn): New macro.
	* cp-gimplify.cc (gimplify_must_not_throw_expr): Use it.
	* except.cc (init_exception_processing): Set it.
	(cp_protect_cleanup_actions): Return it.

2023-06-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/109923
	* pt.cc (is_specialization_of_friend): Fix overbroad check for
	a non-template member function of a class template.

2023-06-03  Patrick Palka  <ppalka@redhat.com>

	* pt.cc (iterative_hash_template_arg): Don't hash
	TEMPLATE_TEMPLATE_PARM specially.

2023-06-03  Patrick Palka  <ppalka@redhat.com>

	* class.cc (build_base_path): Check in_template_context instead
	of in_template_function.
	(resolves_to_fixed_type_p): Likewise.
	* cp-tree.h (in_template_context): Define.
	(in_template_function): Remove.
	* decl.cc (cp_make_fname_decl): Check current_function_decl
	and in_template_context instead of in_template_function.
	* decl2.cc (mark_used): Check in_template_context instead of
	in_template_function.
	* pt.cc (in_template_function): Remove.
	* semantics.cc (enforce_access): Check in_template_context
	instead of current_template_parms directly.

2023-06-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/70790
	* mangle.cc (write_expression): Handle NOEXCEPT_EXPR.

2023-06-02  Jason Merrill  <jason@redhat.com>

	DR 2735
	PR c++/109247
	* call.cc (sfk_copy_or_move): New.
	(joust): Add tiebreaker for explicit conv and copy ctor.

2023-06-02  Jason Merrill  <jason@redhat.com>

	PR c++/110070
	PR c++/105838
	* call.cc (maybe_init_list_as_array): Set DECL_MERGEABLE.
	(convert_like_internal) [ck_list]: Set it.
	(set_up_extended_ref_temp): Copy it.
	* tree.cc (handle_no_unique_addr_attribute): Set it.

2023-06-01  Jason Merrill  <jason@redhat.com>

	* typeck2.cc (check_narrowing): Check flag_permissive.

2023-05-30  Tobias Burnus  <tobias@codesourcery.com>

	PR c/109999
	* parser.cc (cp_parser_oacc_all_clauses,
	cp_parser_omp_all_clauses): Improve error wording.

2023-05-19  Andrew Pinski  <apinski@marvell.com>

	PR driver/33980
	* lang-specs.h ("@c++-header"): Add %w after
	the --output-pch.
	("@c++-system-header"): Likewise.
	("@c++-user-header"): Likewise.

2023-05-19  Patrick Palka  <ppalka@redhat.com>

	* constraint.cc (normalize_concept_check): Avoid having to do
	two norm_cache lookups.  Remove unnecessary early exit for an
	ill-formed concept definition.

2023-05-19  Patrick Palka  <ppalka@redhat.com>

	PR c++/97340
	* pt.cc (lookup_and_finish_template_variable): Don't call
	convert_from_reference.
	(tsubst_copy_and_build) <case TEMPLATE_ID_EXPR>: Call
	convert_from_reference on the result of
	lookup_and_finish_template_variable.

2023-05-18  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

	* call.cc (promoted_arithmetic_type_p): Use _P defines from tree.h.
	(build_conditional_expr): Ditto.
	(convert_like_internal): Ditto.
	(convert_arg_to_ellipsis): Ditto.
	(build_over_call): Ditto.
	(compare_ics): Ditto.
	* class.cc (is_empty_base_ref): Ditto.
	* coroutines.cc (rewrite_param_uses): Ditto.
	* cp-tree.h (DECL_DISCRIMINATOR_P): Ditto.
	(ARITHMETIC_TYPE_P): Ditto.
	* cvt.cc (ocp_convert): Ditto.
	* cxx-pretty-print.cc (pp_cxx_template_argument_list): Ditto.
	* decl.cc (layout_var_decl): Ditto.
	(get_tuple_size): Ditto.
	* error.cc (dump_simple_decl): Ditto.
	* lambda.cc (start_lambda_scope): Ditto.
	* mangle.cc (write_template_arg): Ditto.
	* method.cc (spaceship_comp_cat): Ditto.
	* module.cc (node_template_info): Ditto.
	(trees_out::start): Ditto.
	(trees_out::decl_node): Ditto.
	(trees_in::read_var_def): Ditto.
	(set_instantiating_module): Ditto.
	* name-lookup.cc (maybe_record_mergeable_decl): Ditto.
	(consider_decl): Ditto.
	(maybe_add_fuzzy_decl): Ditto.
	* pt.cc (convert_nontype_argument): Ditto.
	* semantics.cc (handle_omp_array_sections_1): Ditto.
	(finish_omp_clauses): Ditto.
	(finish_omp_target_clauses_r): Ditto.
	(is_this_parameter): Ditto.
	* tree.cc (build_cplus_array_type): Ditto.
	(is_this_expression): Ditto.
	* typeck.cc (do_warn_enum_conversions): Ditto.
	* typeck2.cc (store_init_value): Ditto.
	(check_narrowing): Ditto.

2023-05-17  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109868
	* init.cc (build_zero_init_1): Don't initialize zero-width bitfields.
	For unions only initialize the first FIELD_DECL.

2023-05-16  Marek Polacek  <polacek@redhat.com>

	PR c++/109774
	* typeck.cc (check_return_expr): In a template, return only after
	suppressing -Wdangling-reference.

2023-05-16  Patrick Palka  <ppalka@redhat.com>

	PR c++/109871
	* call.cc (add_list_candidates): Check for invalid designated
	initialization sooner and even for types that have a list
	constructor.

2023-05-11  Patrick Palka  <ppalka@redhat.com>

	PR c++/109745
	* typeck2.cc (poison_mutable_constructors): Define.
	(store_init_value): Use it instead of setting
	CONSTRUCTOR_MUTABLE_POISON directly.

2023-05-11  Patrick Palka  <ppalka@redhat.com>
	    Jonathan Wakely  <jwakely@redhat.com>

	PR c++/83258
	PR c++/80488
	PR c++/97700
	* pt.cc (convert_nontype_argument_function): Remove linkage
	requirement for C++17 and later.
	(invalid_tparm_referent_p) <case ADDR_EXPR>: Restrict
	DECL_ARTIFICIAL rejection test to VAR_DECL.

2023-05-10  Marek Polacek  <polacek@redhat.com>

	PR c++/109680
	* method.cc (build_trait_object): New.
	(assignable_expr): Use it.
	(ref_xes_from_temporary): Likewise.
	(is_convertible_helper): Likewise.  Check FUNC_OR_METHOD_TYPE_P.

2023-05-10  Jason Merrill  <jason@redhat.com>

	* call.cc (convert_like_internal): Share ck_ref_bind handling
	between all bad conversions.

2023-05-10  Jason Merrill  <jason@redhat.com>

	DR 2543
	* constexpr.cc (cxx_eval_outermost_constant_expr): Preserve
	TARGET_EXPR flags.
	(potential_constant_expression_1): Check TARGET_EXPR_ELIDING_P.
	* typeck2.cc (store_init_value): Diagnose constinit sooner.

2023-05-10  Jason Merrill  <jason@redhat.com>

	* constexpr.cc (cxx_eval_outermost_constant_expr): Always check
	for address of immediate fn.
	(maybe_constant_init_1): Evaluate PTRMEM_CST.

2023-05-10  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109756
	* parser.cc (cp_parser_std_attribute): For unknown attributes with
	arguments set TREE_VALUE (attribute) to error_mark_node after skipping
	the balanced tokens.
	(cp_parser_std_attribute_list): If ... is used after attribute without
	arguments, diagnose it and return error_mark_node.  If
	TREE_VALUE (attribute) is error_mark_node, don't call
	make_pack_expansion nor return early error_mark_node.

2023-05-09  Patrick Palka  <ppalka@redhat.com>

	PR c++/109752
	* constraint.cc (satisfaction_cache::satisfaction_cache): In the
	unexpected case of evaluating an atom for the first time noisily,
	remove the cache slot that we inserted.

2023-05-09  Patrick Palka  <ppalka@redhat.com>

	PR c++/109761
	* parser.cc (cp_parser_class_specifier): Don't pass a class
	context to noexcept_override_late_checks.
	(noexcept_override_late_checks): Remove 'type' parameter
	and use DECL_CONTEXT of 'fndecl' instead.

2023-05-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109756
	* cp-gimplify.cc (process_stmt_assume_attribute): Diagnose pack
	expansion of assume attribute.

2023-05-08  Patrick Palka  <ppalka@redhat.com>

	PR c++/106214
	PR c++/93107
	* pt.cc (do_auto_deduction): Move up resolve_nondeduced_context
	calls to happen before do_class_deduction.  Add some
	error_mark_node tests.

2023-05-07  Patrick Palka  <ppalka@redhat.com>

	PR c++/85979
	* cxx-pretty-print.cc (cxx_pretty_printer::unary_expression)
	<case ALIGNOF_EXPR>: Consider ALIGNOF_EXPR_STD_P.
	* error.cc (dump_expr) <case ALIGNOF_EXPR>: Likewise.

2023-05-07  Patrick Palka  <ppalka@redhat.com>

	DR 2256
	PR c++/103091
	* decl.cc (decl_jump_unsafe): Return bool instead of int.
	Don't consider TYPE_HAS_NONTRIVIAL_DESTRUCTOR.
	(check_previous_goto_1): Simplify now that decl_jump_unsafe
	returns bool instead of int.
	(check_goto): Likewise.

2023-05-07  Patrick Palka  <ppalka@redhat.com>

	* pt.cc (instantiate_alias_template): Exit early upon
	error from coerce_template_parms.  Remove dependence test
	guarding constraints_satisfied_p.

2023-05-07  Patrick Palka  <ppalka@redhat.com>

	* cp-tree.h (PLACEHOLDER_TYPE_CONSTRAINTS_INFO): Harden via
	TEMPLATE_TYPE_PARM_CHECK.
	(TPARMS_PRIMARY_TEMPLATE): Harden via TREE_VEC_CHECK.
	(TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL): Harden via
	TEMPLATE_TEMPLATE_PARM_CHECK.
	* cxx-pretty-print.cc (cxx_pretty_printer::simple_type_specifier):
	Guard PLACEHOLDER_TYPE_CONSTRAINTS access.
	* error.cc (dump_type) <case TEMPLATE_TYPE_PARM>: Use separate
	variable to store CLASS_PLACEHOLDER_TEMPLATE result.
	* pt.cc (outer_template_args): Use strip_innermost_template_args.
	(any_type_dependent_arguments_p): Exit early if
	!processing_template_decl.  Use range-based for.
	(any_dependent_template_arguments_p): Likewise.

2023-05-07  Patrick Palka  <ppalka@redhat.com>

	PR c++/98283
	* pt.cc (tsubst_copy_and_build) <case COMPONENT_REF>: Propagate
	REF_PARENTHESIZED_P more generally via force_paren_expr.
	* semantics.cc (force_paren_expr): Document default argument.

2023-05-07  Patrick Palka  <ppalka@redhat.com>

	PR c++/109651
	* pt.cc (coerce_template_args_for_ttp): Mention we can hit the
	current_template_parms fallback when level-lowering a bound ttp.
	(tsubst_template_decl): Add lambda_tparms parameter.  Prefer to
	use lambda_tparms instead of substituting DECL_TEMPLATE_PARMS.
	(tsubst_decl) <case TEMPLATE_DECL>: Pass NULL_TREE as lambda_tparms
	to tsubst_template_decl.
	(tsubst_lambda_expr): For a generic lambda, substitute
	DECL_TEMPLATE_PARMS and set current_template_parms to it
	before substituting the function type.  Pass the substituted
	DECL_TEMPLATE_PARMS as lambda_tparms to tsubst_template_decl.

2023-05-07  Patrick Palka  <ppalka@redhat.com>

	PR c++/109480
	* semantics.cc (enforce_access): Check current_template_parms
	instead of processing_template_decl when deciding whether to
	defer the access check.

2023-05-07  Patrick Palka  <ppalka@redhat.com>

	PR c++/109480
	* constexpr.cc (potential_constant_expression_1) <case CALL_EXPR>:
	Reorganize to call get_fns sooner.  Remove special handling of
	the object argument of a non-static member function call.  Remove
	dead store to 'fun'.

2023-05-05  Jason Merrill  <jason@redhat.com>

	Revert:
	2023-04-27  Jason Merrill  <jason@redhat.com>

	PR c++/61445
	* pt.cc (instantiate_decl): Assert !defer_ok for local
	class members.

2023-05-03  Jason Merrill  <jason@redhat.com>

	PR c++/91618
	PR c++/109649
	* friend.cc (do_friend): Don't call check_explicit_specialization if
	DECL_TEMPLATE_INFO is already set.
	* decl2.cc (check_classfn): Set DECL_TEMPLATE_INFO.
	* name-lookup.cc (set_decl_namespace): Likewise.

2023-05-03  Jakub Jelinek  <jakub@redhat.com>

	* cp-gimplify.cc (cp_fold_data): Move definition earlier.
	(cp_gimplify_expr): Pass address of ff_genericize | ff_mce_false
	constructed data rather than &pset to cp_walk_tree with cp_fold_r.

2023-05-03  Jason Merrill  <jason@redhat.com>

	* pt.cc (reduce_template_parm_level): Fix comparison of
	template template parm to cached version.

2023-05-02  Jason Merrill  <jason@redhat.com>

	* pt.cc (instantiate_class_template): Skip the RECORD_TYPE
	of a class template.
	(tsubst_template_decl): Clear CLASSTYPE_USE_TEMPLATE.

2023-05-02  Jason Merrill  <jason@redhat.com>

	* name-lookup.cc (pop_from_top_level): Don't
	invalidate_class_lookup_cache.

2023-05-02  Jason Merrill  <jason@redhat.com>

	PR c++/109678
	* cp-tree.h (lookup_base): Add offset parm.
	* constexpr.cc (cxx_fold_indirect_ref_1): Pass it.
	* search.cc (struct lookup_base_data_s): Add offset.
	(dfs_lookup_base): Handle it.
	(lookup_base): Pass it.

2023-05-02  Jason Merrill  <jason@redhat.com>

	PR c++/109678
	* constexpr.cc (cxx_fold_indirect_ref_1): Handle empty base first.

2023-05-01  Jason Merrill  <jason@redhat.com>

	PR c++/109666
	* name-lookup.cc (maybe_push_to_top_level)
	(maybe_pop_from_top_level): Split out...
	* pt.cc (instantiate_body): ...from here.
	* init.cc (maybe_instantiate_nsdmi_init): Use them.
	* name-lookup.h: Declare them..

2023-04-28  Eugene Rozenfeld  <erozen@microsoft.com>

	* Make-lang.in: Merge perf data collected when compiling cc1plus and runtime libraries

2023-04-27  Jason Merrill  <jason@redhat.com>

	* call.cc (print_conversion_rejection): Use iloc_sentinel.

2023-04-27  Jason Merrill  <jason@redhat.com>

	PR c++/61445
	* pt.cc (instantiate_decl): Assert !defer_ok for local
	class members.

2023-04-26  Jason Merrill  <jason@redhat.com>

	* init.cc (nsdmi_inst): Remove.
	(maybe_instantiate_nsdmi_init): Use DECL_INITIAL instead.

2023-04-26  Jason Merrill  <jason@redhat.com>

	PR c++/109241
	* pt.cc (instantiate_class_template): Do partially instantiate.
	(tsubst_expr): Do call complete_type for partial instantiations.

2023-04-26  Jason Merrill  <jason@redhat.com>

	PR c++/69836
	* pt.cc (regenerate_decl_from_template): Skip unique friends.

2023-04-26  Patrick Palka  <ppalka@redhat.com>

	* pt.cc (most_specialized_partial_spec): Exit early when
	DECL_TEMPLATE_SPECIALIZATIONS is empty.  Move local variable
	declarations closer to their first use.  Remove redundant
	flag_concepts test.  Remove redundant forward declaration.

2023-04-25  Patrick Palka  <ppalka@redhat.com>

	PR c++/108975
	* pt.cc (value_dependent_expression_p) <case VAR_DECL>:
	Suppress conservative early exit for reference variables
	when DECL_HAS_VALUE_EXPR_P.

2023-04-25  Tobias Burnus  <tobias@codesourcery.com>

	* parser.cc (cp_parser_omp_scan_loop_body): Handle
	zero exec statements before/after 'omp scan'.

2023-04-24  Patrick Palka  <ppalka@redhat.com>

	* cp-tree.h (cp_expr_location): Define here.
	* tree.cc (cp_expr_location): Don't define here.

2023-04-21  Jason Merrill  <jason@redhat.com>

	PR c++/108099
	* decl.cc (grokdeclarator): Don't clear typedef_decl after 'unsigned
	typedef' pedwarn.  Use c_common_signed_or_unsigned_type.  Also
	handle 'signed typedef'.

2023-04-21  Patrick Palka  <ppalka@redhat.com>

	* tree.cc (cp_walk_subtrees): Avoid repeatedly dereferencing tp.
	<case DECLTYPE_TYPE>: Use cp_unevaluated and WALK_SUBTREE.
	<case ALIGNOF_EXPR etc>: Likewise.

2023-04-20  Patrick Palka  <ppalka@redhat.com>

	* pt.cc (tsubst) <case TEMPLATE_TYPE_PARM>: Don't recurse when
	level lowering a cv-qualified type template parameter.  Remove
	recursive loop breaker in the level lowering case for constrained
	autos.  Use the TEMPLATE_PARM_DESCENDANTS cache in this case as
	well.

2023-04-20  Patrick Palka  <ppalka@redhat.com>

	* constraint.cc (diagnose_trait_expr): Convert a TREE_VEC
	of arguments into a TREE_LIST for sake of pretty printing.
	* cxx-pretty-print.cc (pp_cxx_trait): Handle TREE_VEC
	instead of TREE_LIST of trailing variadic trait arguments.
	* method.cc (constructible_expr): Likewise.
	(is_xible_helper): Likewise.
	* parser.cc (cp_parser_trait): Represent trailing variadic trait
	arguments as a TREE_VEC instead of TREE_LIST.
	* pt.cc (value_dependent_expression_p): Handle TREE_VEC
	instead of TREE_LIST of trailing variadic trait arguments.
	* semantics.cc (finish_type_pack_element): Likewise.
	(check_trait_type): Likewise.

2023-04-20  Patrick Palka  <ppalka@redhat.com>

	* tree.cc (strip_typedefs): Move TREE_LIST handling to
	strip_typedefs_expr.  Dispatch to strip_typedefs_expr for
	non-type 't'.
	<case TYPENAME_TYPE>: Remove manual dispatching to
	strip_typedefs_expr.
	<case TRAIT_TYPE>: Likewise.
	(strip_typedefs_expr): Replaces calls to strip_typedefs_expr
	with strip_typedefs throughout.  Don't dispatch to strip_typedefs
	for type 't'.
	<case TREE_LIST>: Replace this with the better version from
	strip_typedefs.

2023-04-19  Patrick Palka  <ppalka@redhat.com>
	    Jonathan Wakely  <jwakely@redhat.com>

	PR c++/100157
	* cp-trait.def (TYPE_PACK_ELEMENT): Define.
	* cp-tree.h (finish_trait_type): Add complain parameter.
	* cxx-pretty-print.cc (pp_cxx_trait): Handle
	CPTK_TYPE_PACK_ELEMENT.
	* parser.cc (cp_parser_constant_expression): Document default
	arguments.
	(cp_parser_trait): Handle CPTK_TYPE_PACK_ELEMENT.  Pass
	tf_warning_or_error to finish_trait_type.
	* pt.cc (tsubst) <case TRAIT_TYPE>: Handle non-type first
	argument.  Pass complain to finish_trait_type.
	* semantics.cc (finish_type_pack_element): Define.
	(finish_trait_type): Add complain parameter.  Handle
	CPTK_TYPE_PACK_ELEMENT.
	* tree.cc (strip_typedefs): Handle non-type first argument.
	Pass tf_warning_or_error to finish_trait_type.
	* typeck.cc (structural_comptypes) <case TRAIT_TYPE>: Use
	cp_tree_equal instead of same_type_p for the first argument.

2023-04-19  Patrick Palka  <ppalka@redhat.com>

	PR c++/109556
	* pt.cc (try_class_unification): Don't ggc_free the copy of
	'targs'.

2023-04-19  Jason Merrill  <jason@redhat.com>

	PR c++/108099
	* decl.cc (grokdeclarator): Keep typedef_decl for __int128_t.

2023-04-17  Patrick Palka  <ppalka@redhat.com>

	PR c++/109531
	* pt.cc (tsubst) <case BOUND_TEMPLATE_TEMPLATE_PARM>:
	In the level-lowering case just use lookup_template_class
	to rebuild the bound ttp.

2023-04-15  Jason Merrill  <jason@redhat.com>

	PR c++/109357
	* constexpr.cc (cxx_eval_constant_expression) [TARGET_EXPR]:
	Check for complex initializer.

2023-04-13  Patrick Palka  <ppalka@redhat.com>

	PR c++/109420
	* decl.cc (make_typename_type): Also ignore non-types during the
	lookup if tag_type corresponds to an elaborated-type-specifier.
	* pt.cc (tsubst) <case TYPENAME_TYPE>: Pass class_type or
	enum_type as tag_type to make_typename_type accordingly instead
	of always passing typename_type.

2023-04-13  Jason Merrill  <jason@redhat.com>

	PR c++/109277
	* semantics.cc (check_trait_type): Handle incomplete type directly.
	* typeck2.cc (cxx_incomplete_type_diagnostic): Remove assert.

2023-04-13  Jason Merrill  <jason@redhat.com>

	* typeck2.cc (cxx_incomplete_type_diagnostic): Return bool.
	* cp-tree.h (cxx_incomplete_type_diagnostic): Adjust.

2023-04-12  Jakub Jelinek  <jakub@redhat.com>

	* Make-lang.in (s-cp-module-version): New target.
	(cp/module.o): Depend on it.
	(MODULE_VERSION): Remove variable.
	(CFLAGS-cp/module.o): For -DMODULE_VERSION= argument just
	cat s-cp-module-version.

2023-04-09  Iain Sandoe  <iain@sandoe.co.uk>

	* coroutines.cc (coro_rewrite_function_body): Ensure that added
	bind expressions have scope blocks.

2023-04-04  Jason Merrill  <jason@redhat.com>

	PR c++/107484
	* decl2.cc (find_last_decl): Return early if DECL_USE_TEMPLATE.

2023-04-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/109300
	* decl.cc (cp_finish_decl): Diagnose ordinary auto deduction
	with no initializer, instead of asserting.

2023-04-01  Patrick Palka  <ppalka@redhat.com>

	PR c++/109160
	* cp-tree.h (do_auto_deduction): Add defaulted tmpl parameter.
	* pt.cc (convert_template_argument): Pass 'in_decl' as 'tmpl' to
	do_auto_deduction.
	(tsubst_decl) <case VAR_/TYPE_DECL>: Pass 'tmpl' instead of 't' as
	'in_decl' to coerce_template_parms.
	(unify) <case TEMPLATE_PARM_INDEX>: Pass TPARMS_PRIMARY_TEMPLATE
	as 'tmpl' to do_auto_deduction.
	(do_auto_deduction): Document default arguments.  Rename local
	variable 'tmpl' to 'ctmpl'.  Use 'tmpl' to obtain a full set of
	template arguments for satisfaction in the adc_unify case.

2023-04-01  Patrick Palka  <ppalka@redhat.com>

	PR c++/53164
	PR c++/105848
	* pt.cc (invalid_tparm_referent_p): Accept ADDR_EXPR of
	FUNCTION_DECL.
	(instantiate_class_template): Call mark_template_arguments_used.
	(tsubst_copy_and_build) <case CALL_EXPR>: Revert r13-995 change.
	(mark_template_arguments_used): Define.
	(instantiate_body): Call mark_template_arguments_used.

2023-04-01  Iain Sandoe  <iain@sandoe.co.uk>

	PR c++/101118
	* coroutines.cc (flatten_await_stmt): Use the current count of
	promoted temporaries to build a unique name for the frame entries.

2023-03-30  Jason Merrill  <jason@redhat.com>

	PR c++/105452
	* search.cc (type_context_for_name_lookup): New.
	(accessible_p): Handle anonymous union.
	* init.cc (maybe_instantiate_nsdmi_init): Use
	type_context_for_name_lookup.
	* parser.cc (cp_parser_class_specifier): Likewise.
	* cp-tree.h (type_context_for_name_lookup): Declare.

2023-03-30  Jason Merrill  <jason@redhat.com>

	PR c++/105221
	* pt.cc (unify) [FUNCTION_TYPE]: Handle function pointer
	conversions.

2023-03-30  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109319
	* decl2.cc (grok_array_decl): After emitting a pedwarn for
	-Wcomma-subscript, if processing_template_decl set orig_index_exp
	to compound expr from orig_index_exp_list.

2023-03-30  Jason Merrill  <jason@redhat.com>

	PR c++/107897
	PR c++/108887
	* decl2.cc (record_mangling): Use symtab_node::reset.

2023-03-30  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109278
	* call.cc (convert_like_internal): If pedwarn for extended float
	type conversions doesn't report anything, avoid calling
	maybe_inform_about_fndecl_for_bogus_argument_init.

2023-03-29  Jason Merrill  <jason@redhat.com>

	PR c++/109321
	PR c++/109320
	* pt.cc (alias_ctad_tweaks): Rewrite deduced args.
	(type_targs_deducible_from): Handle null pack deduction.

2023-03-28  David Malcolm  <dmalcolm@redhat.com>

	PR c/107002
	* parser.cc (cp_parser_binary_expression): Update for new param of
	check_for_xor_used_as_pow.

2023-03-28  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109309
	* contracts.cc: Include intl.h.
	(check_postcondition_result): Don't form diagnostics from two halves
	of an English message to allow translations.

2023-03-24  Patrick Palka  <ppalka@redhat.com>

	PR c++/106969
	* parser.cc (cp_parser_class_specifier): Clear current_class_ptr
	and current_class_ref sooner, before parsing a class definition.

2023-03-24  Jason Merrill  <jason@redhat.com>

	PR c++/105481
	* pt.cc (type_unification_real): Adjust for partial ordering.

2023-03-23  Jason Merrill  <jason@redhat.com>

	PR c++/105996
	* typeck.cc (build_ptrmemfunc): Drop 0-offset optimization
	and location wrappers.

2023-03-23  Marek Polacek  <polacek@redhat.com>

	PR c++/107532
	* call.cc (class_has_reference_member_p): New.
	(class_has_reference_member_p_r): New.
	(reference_like_class_p): Don't look for a specific constructor.
	Use a DFS walk with class_has_reference_member_p_r.

2023-03-23  Jason Merrill  <jason@redhat.com>

	PR c++/109241
	* pt.cc (find_parameter_packs_r): Handle null TREE_BINFO.

2023-03-22  Jason Merrill  <jason@redhat.com>

	PR c++/108390
	* pt.cc (unify): Use fold of build_nop instead of fold_convert.

2023-03-22  Jason Merrill  <jason@redhat.com>

	PR c++/108795
	* semantics.cc (finish_id_expression_1): Check scope before
	returning id_expression.

2023-03-22  Alex Coplan  <alex.coplan@arm.com>

	PR c++/109177
	* call.cc (build_over_call): Use make_temp_override to suppress
	both unavailable and deprecated warnings when calling
	build_addr_func.

2023-03-21  Jason Merrill  <jason@redhat.com>

	PR c++/106890
	* init.cc (maybe_instantiate_nsdmi_init): Don't leave
	current_function_decl set to a constructor.

2023-03-20  Marek Polacek  <polacek@redhat.com>

	PR c++/109159
	* call.cc (add_template_candidate_real): Add explicit decls to the
	set of candidates when the initializer is a braced-init-list.

2023-03-20  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109164
	* cp-tree.h (var_needs_tls_wrapper): Declare.
	* decl2.cc (var_needs_tls_wrapper): No longer static.
	* decl.cc (cp_finish_decl): Clear TREE_READONLY on TLS variables
	for which a TLS wrapper will be needed.

2023-03-17  Jason Merrill  <jason@redhat.com>

	PR c++/108975
	* lambda.cc (prune_lambda_captures): Don't bother in a template.

2023-03-17  Jason Merrill  <jason@redhat.com>

	PR c++/109172
	* except.cc (build_throw): Check dtor access.

2023-03-17  Jason Merrill  <jason@redhat.com>

	PR c++/69410
	* friend.cc (do_friend): Handle namespace as scope argument.
	* decl.cc (grokdeclarator): Pass down in_namespace.

2023-03-16  Jason Merrill  <jason@redhat.com>

	PR c++/105809
	* init.cc (get_nsdmi): Split out...
	(maybe_instantiate_nsdmi_init): ...this function.
	* cp-tree.h: Declare it.
	* pt.cc (tsubst_expr): Use it.

2023-03-16  Jason Merrill  <jason@redhat.com>

	PR c++/108242
	* pt.cc (tsubst_expr) [TAG_DEFN]: Handle partial instantiation.

2023-03-16  Jason Merrill  <jason@redhat.com>

	PR c++/101869
	* semantics.cc (finish_qualified_id_expr): Don't try to build a
	pointer-to-member if the scope is an enumeration.

2023-03-16  Patrick Palka  <ppalka@redhat.com>

	PR c++/109030
	* constexpr.cc (maybe_constant_init_1): For an unevaluated
	non-manifestly-constant operand, don't constant evaluate
	and instead call fold_to_constant as in maybe_constant_value.

2023-03-16  Patrick Palka  <ppalka@redhat.com>

	PR c++/100288
	* constraint.cc (satisfaction_cache::get): Relax overly strict
	checking assert in the constraint recursion case.

2023-03-16  Jason Merrill  <jason@redhat.com>

	PR c++/105406
	* coroutines.cc (build_co_await): Handle lvalue 'o'.

2023-03-15  Jason Merrill  <jason@redhat.com>

	PR c++/103871
	PR c++/98056
	* typeck.cc (cp_build_modify_expr): Allow array initialization of
	DECL_ARTIFICIAL variable.

2023-03-15  Marek Polacek  <polacek@redhat.com>

	PR c++/107280
	* constexpr.cc (cxx_eval_store_expression): Strip location wrappers.

2023-03-15  Jason Merrill  <jason@redhat.com>

	PR c++/58538
	* semantics.cc (check_template_template_default_arg): Check
	maybe_get_template_decl_from_type_decl.

2023-03-15  Jason Merrill  <jason@redhat.com>

	PR c++/108179
	PR c++/104107
	PR c++/95036
	* pt.cc (coerce_template_template_parms): Use args from
	DECL_CONTEXT (arg_tmpl) instead of outer_args.

2023-03-15  Jason Merrill  <jason@redhat.com>

	PR c++/108179
	* pt.cc	(coerce_template_template_parms): Take the arg and parm
	templates directly.
	(coerce_template_template_parm): Adjust.
	(template_template_parm_bindings_ok_p): Adjust.
	(convert_template_argument): Adjust.

2023-03-14  Patrick Palka  <ppalka@redhat.com>

	PR c++/96830
	* pt.cc (push_inline_template_parms_recursive): Set
	TEMPLATE_PARMS_CONSTRAINTS.
	(push_template_decl): For an out-of-line declaration, verify
	constraints for each enclosing template scope match those of the
	original template declaratation.

2023-03-14  Patrick Palka  <ppalka@redhat.com>

	PR c++/96830
	* pt.cc (redeclare_class_template): Add missing "of" in
	constraint mismatch diagnostic.
	(tsubst_friend_class): For an already declared class template,
	substitute and pass the friend declaration's constraints to
	redeclare_class_template instead of passing the existing
	template's constraints.

2023-03-14  Jason Merrill  <jason@redhat.com>

	PR c++/108468
	* pt.cc (unify_pack_expansion): Check that TPARMS_PRIMARY_TEMPLATE
	is non-null.

2023-03-14  Jason Merrill  <jason@redhat.com>

	PR c++/107310
	* cp-gimplify.cc (genericize_if_stmt): Restore folding
	of constant conditions.

2023-03-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109096
	* tree.cc (record_has_unique_obj_representations): Ignore unnamed
	bitfields.

2023-03-13  Jason Merrill  <jason@redhat.com>

	PR c++/107128
	* parser.cc (cp_parser_set_decl_spec_type): Use
	redefined_builtin_type for extended_float_type_p.

2023-03-13  Marek Polacek  <polacek@redhat.com>

	PR c++/107532
	* call.cc (reference_like_class_p): Check for std::span.

2023-03-10  Jakub Jelinek  <jakub@redhat.com>

	PR c++/107558
	* decl.cc (cp_finish_decl): Don't clear TREE_READONLY on
	automatic non-aggregate variables just because of
	-fmerge-all-constants.

2023-03-10  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109039
	* class.cc (end_of_class): For bit-fields, instead of computing
	offset as sum of byte_position (field) and DECL_SIZE_UNIT (field),
	compute it as sum of bit_position (field) and DECL_SIZE (field)
	divided by BITS_PER_UNIT rounded up.

2023-03-10  Jason Merrill  <jason@redhat.com>

	PR c++/108972
	* lambda.cc (compare_lambda_template_head): Check more
	for error_mark_node.

2023-03-10  Jason Merrill  <jason@redhat.com>

	PR c++/108566
	* mangle.cc (anon_aggr_naming_decl): New.
	(write_unqualified_name): Use it.

2023-03-10  Jakub Jelinek  <jakub@redhat.com>

	PR c/108079
	* decl.cc (poplevel): Suppress OPT_Wunused_variable warning
	after diagnosing it.

2023-03-10  Jason Merrill  <jason@redhat.com>

	PR c++/108099
	* decl.cc (grokdeclarator): Handle non-typedef typedef_decl.

2023-03-10  Jason Merrill  <jason@redhat.com>

	PR c++/108542
	* class.cc (instantiate_type): Strip location wrapper.

2023-03-09  Jason Merrill  <jason@redhat.com>

	PR c++/108773
	* init.cc (find_allocator_temps_r): New.
	(combine_allocator_temps): Replace find_allocator_temp.
	(build_vec_init): Adjust.

2023-03-09  Jason Merrill  <jason@redhat.com>

	DR 2664
	PR c++/102529
	* pt.cc (alias_ctad_tweaks): Continue after deduction failure.

2023-03-09  Jason Merrill  <jason@redhat.com>
	    Michael Spertus  <mike@spertus.com>

	PR c++/105841
	* pt.cc	(corresponding_template_parameter_list): Split out...
	(corresponding_template_parameter): ...from here.
	(find_template_parameters): Factor out...
	(find_template_parameter_info::find_in): ...this function.
	(find_template_parameter_info::find_in_recursive): New.
	(find_template_parameter_info::found): New.
	(alias_ctad_tweaks): Only add parms used in the deduced args.

2023-03-09  Jason Merrill  <jason@redhat.com>

	* cp-trait.def (IS_DEDUCIBLE): Add space to name.

2023-03-09  Jason Merrill  <jason@redhat.com>

	PR c++/105841
	* cp-trait.def (IS_DEDUCIBLE): New.
	* cxx-pretty-print.cc (pp_cxx_trait): Handle non-type.
	* parser.cc (cp_parser_trait): Likewise.
	* tree.cc (cp_tree_equal): Likewise.
	* pt.cc (tsubst_copy_and_build): Likewise.
	(type_targs_deducible_from): New.
	(alias_ctad_tweaks): Use it.
	* semantics.cc (trait_expr_value): Handle CPTK_IS_DEDUCIBLE.
	(finish_trait_expr): Likewise.
	* constraint.cc (diagnose_trait_expr): Likewise.
	* cp-tree.h (type_targs_deducible_from): Declare.

2023-03-07  Jason Merrill  <jason@redhat.com>

	PR c++/108526
	PR c++/106651
	* pt.cc (tsubst_function_decl): Don't replace the closure
	parameter if DECL_STATIC_FUNCTION_P.

2023-03-07  Marek Polacek  <polacek@redhat.com>

	PR c++/107532
	* call.cc (reference_like_class_p): New.
	(do_warn_dangling_reference): Add new bool parameter.  See through
	reference_like_class_p.

2023-03-07  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109042
	* rtti.cc (emit_support_tinfo_1): Don't assert that last
	unemitted_tinfo_decls element is tinfo, instead pop from it only in
	that case.
	* decl2.cc (c_parse_final_cleanups): Don't call emit_tinfo_decl
	for unemitted_tinfO_decls which have already non-NULL DECL_INITIAL.

2023-03-07  Marek Polacek  <polacek@redhat.com>

	PR c++/109030
	* constexpr.cc (cxx_eval_call_expression): Relax assert.

2023-03-07  Marek Polacek  <polacek@redhat.com>

	PR c++/107939
	* constexpr.cc (potential_constant_expression_1) <case CALL_EXPR>: Pass
	'any' when recursing on a VAR_DECL and not a pointer to function.

2023-03-04  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108702
	* constexpr.cc: Include toplev.h.
	(cxx_eval_constant_expression) <case DECL_EXPR>: When seeing a local
	static initialized by constant expression outside of a constexpr
	function which has been deferred by make_rtl_for_nonlocal_decl,
	call rest_of_decl_compilation on it.

2023-03-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/108998
	* pt.cc (el_data::skipped_trees): New data member.
	(extract_locals_r): Push to skipped_trees any unevaluated
	contexts that we skipped over.
	(extract_local_specs): For the second walk, start from each
	tree in skipped_trees.

2023-03-03  Alexandre Oliva  <oliva@adacore.com>

	* typeck.cc (cp_build_binary_op): Suppress redundant warning
	for pfn null test in pmfn test with vbit-in-delta.

2023-03-02  Jakub Jelinek  <jakub@redhat.com>

	PR target/108883
	* cp-tree.h (enum cp_tree_index): Remove CPTI_FALLBACK_DFLOAT*_TYPE
	enumerators.
	(fallback_dfloat32_type, fallback_dfloat64_type,
	fallback_dfloat128_type): Remove.
	* rtti.cc (emit_support_tinfo_1): If not emitted already, call
	emit_tinfo_decl and remove from unemitted_tinfo_decls right away.
	(emit_support_tinfos): Move &dfloat*_type_node from fundamentals array
	into new fundamentals_with_fallback array.  Call emit_support_tinfo_1
	on elements of that array too, with the difference that if
	the type is NULL, use a fallback REAL_TYPE for it temporarily.
	Drop the !targetm.decimal_float_supported_p () handling.  Call
	targetm.emit_support_tinfos at the end.
	* mangle.cc (write_builtin_type): Remove references to
	fallback_dfloat*_type.  Handle bfloat16_type_node mangling.

2023-03-02  Patrick Palka  <ppalka@redhat.com>

	PR c++/108243
	PR c++/97553
	* cp-gimplify.cc (cp_fully_fold): Add an internal overload that
	additionally takes and propagate an mce_value parameter, and
	define the existing public overload in terms of it.
	(cp_fully_fold_init): Pass mce_false to cp_fully_fold.

2023-03-02  Patrick Palka  <ppalka@redhat.com>

	PR c++/108243
	* constexpr.cc (maybe_constant_init_1): Override
	manifestly_const_eval to true if is_static.

2023-03-02  Jakub Jelinek  <jakub@redhat.com>

	PR debug/108716
	* cp-gimplify.cc (cp_genericize_r) <case USING_STMT>: Set
	DECL_SOURCE_LOCATION on IMPORTED_DECL to expression location
	of USING_STMT or input_location.

2023-03-02  Marek Polacek  <polacek@redhat.com>

	PR c++/106259
	* parser.cc (class_decl_loc_t::diag_mismatched_tags): If the first
	lookup of SPEC didn't find anything, try to look for
	most_general_template.

2023-03-02  Jakub Jelinek  <jakub@redhat.com>

	PR c++/105839
	* parser.cc (cp_convert_omp_range_for): Allow in assert
	decomp_first_name without DECL_HAS_VALUE_EXPR_P if it has
	error_mark_node type.
	(cp_finish_omp_range_for): Don't set DECL_HAS_VALUE_EXPR_P back
	on decls which have error_mark_node type.

2023-03-01  Marek Polacek  <polacek@redhat.com>

	PR c++/107574
	* constexpr.cc (cxx_eval_constant_expression): Emit an error when
	a PTRMEM_CST cannot be evaluated.

2023-03-01  Patrick Palka  <ppalka@redhat.com>

	* pt.cc (tsubst_scope): Define.
	(tsubst_decl) <case USING_DECL>: Call tsubst_scope instead of
	calling tsubst_scope with tf_qualifying_scope set.
	(tsubst_qualified_id): Call tsubst_scope instead of
	calling tsubst with tf_qualifying_scope set.
	(tsubst_copy): Immediately delegate to tsubst for all TYPE_P
	trees.  Remove tf_qualifying_scope manipulation.
	<case SCOPE_REF>: Call tsubst_scope instead of calling
	tsubst with tf_qualifying_scope set.

2023-03-01  Patrick Palka  <ppalka@redhat.com>
	    Jason Merrill  <jason@redhat.com>

	PR c++/108219
	PR c++/108218
	* constexpr.cc (fold_to_constant): Define.
	(maybe_constant_value): Move up early exit test for unevaluated
	operands.  Try reducing an unevaluated operand to a constant via
	fold_to_constant.
	(fold_non_dependent_expr_template): Add early exit test for
	CONSTANT_CLASS_P nodes.  Try reducing an unevaluated operand
	to a constant via fold_to_constant.
	* cp-tree.h (fold_to_constant): Declare.

2023-03-01  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108606
	* constexpr.cc (potential_constant_expression_1) <case DECL_EXPR>:
	Only recurse on DECL_INITIAL (tmp) if tmp is a VAR_DECL, otherwise
	just return true.

2023-02-28  Patrick Palka  <ppalka@redhat.com>

	PR c++/108848
	* pt.cc (finish_template_variable): Move dependence check
	to here from ...
	(lookup_and_finish_template_variable): ... here.
	* semantics.cc (finish_id_expression_1): Call
	finish_template_variable sooner, before (and regardless of) the
	type_dependent_expression_p test.

2023-02-28  Marek Polacek  <polacek@redhat.com>

	PR c++/108550
	* pt.cc (lookup_and_finish_template_variable): Clear tf_partial.

2023-02-20  Marek Polacek  <polacek@redhat.com>

	PR c++/101073
	* constexpr.cc (cxx_eval_call_expression): Replace shortcutting trivial
	constructor/op= with a checking assert.

2023-02-20  Marek Polacek  <polacek@redhat.com>

	PR c++/108829
	* pt.cc (prepend_one_capture): Set LAMBDA_CAPTURE_EXPLICIT_P.
	(tsubst_lambda_expr): Pass LAMBDA_CAPTURE_EXPLICIT_P to
	prepend_one_capture.

2023-02-18  Jason Merrill  <jason@redhat.com>

	DR 2518
	PR c++/52809
	PR c++/53638
	PR c++/87389
	PR c++/89741
	PR c++/92099
	PR c++/104041
	PR c++/104691
	* semantics.cc (finish_static_assert): Don't diagnose in
	template context.

2023-02-17  Patrick Palka  <ppalka@redhat.com>

	PR c++/108243
	PR c++/97553
	* cp-gimplify.cc (enum fold_flags): Define.
	(fold_flags_t): Declare.
	(cp_fold_data::genericize): Replace this data member with ...
	(cp_fold_data::fold_flags): ... this.
	(cp_fold_r): Adjust use of cp_fold_data and calls to cp_fold.
	(cp_fold_function): Likewise.
	(cp_fold_maybe_rvalue): Add an internal overload that
	additionally takes and propagates a fold_flags_t parameter, and
	define the existing public overload in terms of it.
	(cp_fold_rvalue): Likewise.
	(cp_fully_fold_init): Adjust use of cp_fold_data.
	(fold_cache): Replace with ...
	(fold_caches): ... this 2-element array of caches.
	(get_fold_cache): Define.
	(clear_fold_cache): Adjust.
	(cp_fold): Add fold_flags_t parameter.  Use get_fold_cache.
	Pass flags to calls to cp_fold, cp_fold_rvalue and
	cp_fold_maybe_rvalue.
	<case CALL_EXPR>: If ff_mce_false is set, fold
	__builtin_is_constant_evaluated to false and pass mce_false to
	maybe_constant_value.

2023-02-17  Patrick Palka  <ppalka@redhat.com>

	* constexpr.cc (constexpr_call::manifestly_const_eval): Give
	it type int instead of bool.
	(constexpr_ctx::manifestly_const_eval): Give it type mce_value
	instead of bool.
	(cxx_eval_builtin_function_call): Adjust after making
	manifestly_const_eval tri-state.
	(cxx_eval_call_expression): Likewise.
	(cxx_eval_binary_expression): Likewise.
	(cxx_eval_conditional_expression): Likewise.
	(cxx_eval_constant_expression): Likewise.
	(cxx_eval_outermost_constant_expr): Likewise.
	(cxx_constant_value): Likewise.
	(cxx_constant_dtor): Likewise.
	(maybe_constant_value): Give manifestly_const_eval parameter
	type mce_value instead of bool and adjust accordingly.
	(fold_non_dependent_expr_template): Adjust call
	to cxx_eval_outermost_constant_expr.
	(fold_non_dependent_expr): Likewise.
	(maybe_constant_init_1): Likewise.
	* constraint.cc (satisfy_atom): Adjust call to
	maybe_constant_value.
	* cp-tree.h (enum class mce_value): Define.
	(maybe_constant_value): Adjust manifestly_const_eval parameter
	type and default argument.
	* decl.cc (compute_array_index_type_loc): Adjust call to
	maybe_constant_value.
	* pt.cc (convert_nontype_argument): Likewise.

2023-02-16  Patrick Palka  <ppalka@redhat.com>

	PR c++/107773
	* cp-tree.h (enum tsubst_flags): New flag tf_qualifying_scope.
	* decl.cc (make_typename_type): Use lookup_member instead of
	lookup_field.  If tf_qualifying_scope is set, pass want_type=true
	instead of =false to lookup_member.  Generalize format specifier
	in diagnostic to handle both type and non-type bindings.
	* pt.cc (tsubst_aggr_type_1): Clear tf_qualifying_scope.  Tidy
	the function.
	(tsubst_decl) <case USING_DECL>: Set tf_qualifying_scope when
	substituting USING_DECL_SCOPE.
	(tsubst): Clear tf_qualifying_scope right away and remember if
	it was set.  Do the same for tf_tst_ok sooner.
	<case TYPENAME_TYPE>: Set tf_qualifying_scope when substituting
	TYPE_CONTEXT.  Pass tf_qualifying_scope to make_typename_type
	if it was set.
	(tsubst_qualified_id): Set tf_qualifying_scope when substituting
	the scope.
	(tsubst_copy): Clear tf_qualifying_scope and remember if it was
	set.
	<case SCOPE_REF>: Set tf_qualifying_scope when substituting the
	scope.
	<case *_TYPE>: Pass tf_qualifying_scope to tsubst if it was set.
	* search.cc (lookup_member): Document default argument.

2023-02-16  Patrick Palka  <ppalka@redhat.com>

	* cp-tree.h: Mechanically drop static from static inline
	functions via s/^static inline/inline/g.

2023-02-15  Marek Polacek  <polacek@redhat.com>

	PR c++/106675
	* call.cc (joust_maybe_elide_copy): Return false for ck_ambig.

2023-02-10  Marek Polacek  <polacek@redhat.com>

	PR c++/107079
	* call.cc (set_up_extended_ref_temp): Pass var to maybe_constant_init.

2023-02-09  Tobias Burnus  <tobias@codesourcery.com>

	* parser.cc (cp_parser_omp_allocate): Parse align
	clause and check for restrictions.

2023-02-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108698
	* mangle.cc (write_expression, write_template_arg): Handle
	EXCESS_PRECISION_EXPR with REAL_CST operand as
	write_template_arg_literal on fold_convert of the REAL_CST
	to EXCESS_PRECISION_EXPR type.

2023-02-06  Patrick Palka  <ppalka@redhat.com>

	PR c++/107461
	* cp-tree.h (call_expr_dependent_name): Declare.
	* pt.cc (iterative_hash_template_arg) <case CALL_EXPR>: Use
	call_expr_dependent_name instead of dependent_name.
	* tree.cc (call_expr_dependent_name): Define.
	(called_fns_equal): Adjust to take two CALL_EXPRs instead of
	CALL_EXPR_FNs thereof.  Use call_expr_dependent_name instead
	of dependent_name.
	(cp_tree_equal) <case CALL_EXPR>: Adjust call to called_fns_equal.

2023-02-03  Marek Polacek  <polacek@redhat.com>

	PR c++/108158
	* constexpr.cc (cxx_eval_array_reference): Don't replace
	new_ctx.object.

2023-02-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/107461
	* semantics.cc (finish_call_expr): Strip ADDR_EXPR from
	the selected callee during overload set pruning.

2023-02-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/96745
	* class.cc (check_methods): Diagnose an unviable OVERLOAD
	set for CLASSTYPE_DESTRUCTOR differently from an ambiguous one.
	Then prune the OVERLOAD to a single function.
	(check_bases_and_members): Handle CLASSTYPE_DESTRUCTOR being
	an OVERLOAD when calling deduce_noexcept_on_destructor.
	Document why it has to be called before check_methods.

2023-02-03  Patrick Palka  <ppalka@redhat.com>

	PR c++/108579
	* class.cc (check_methods): Swap order of constraints_satisfied_p
	and copy/move_fn_p tests.

2023-02-01  Marek Polacek  <polacek@redhat.com>

	PR c++/107755
	* call.cc (build_new_op): Don't call warn_logical_operator when
	processing a template.

2023-02-01  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108607
	* constexpr.cc (cxx_eval_constant_expression): Handle OMP_*
	and OACC_* constructs as non-constant.
	(potential_constant_expression_1): Handle OMP_SCAN and OMP_SCOPE.

2023-02-01  Jason Merrill  <jason@redhat.com>

	* class.cc (note_name_declared_in_class): Change from permerror to
	-Wchanges-meaning pedwarn, forcing -pedantic-errors for most cases.

2023-01-31  Jason Merrill  <jason@redhat.com>

	PR c++/108559
	* cp-gimplify.cc (any_non_eliding_target_exprs): New.
	(cp_genericize_init): Check it.

2023-01-31  Marek Polacek  <polacek@redhat.com>

	PR c++/107593
	PR c++/108597
	* cp-tree.h (instantiation_dependent_expression_p): Don't
	declare here.

2023-01-26  Marek Polacek  <polacek@redhat.com>

	PR c++/105300
	* parser.cc: Remove unnecessary forward declarations.
	(cp_parser_string_literal): New wrapper.
	(cp_parser_string_literal_common): Renamed from
	cp_parser_string_literal.  Add a bool parameter.  Give an error when
	UDLs are not permitted.
	(cp_parser_userdef_string_literal): New wrapper.
	(finish_userdef_string_literal): Renamed from
	cp_parser_userdef_string_literal.
	(cp_parser_primary_expression): Call cp_parser_userdef_string_literal
	instead of cp_parser_string_literal.
	(cp_parser_linkage_specification): Move a variable declaration closer
	to its first use.
	(cp_parser_static_assert): Likewise.
	(cp_parser_operator): Call cp_parser_userdef_string_literal instead of
	cp_parser_string_literal.
	(cp_parser_asm_definition): Move a variable declaration closer to its
	first use.
	(cp_parser_asm_specification_opt): Move variable declarations closer to
	their first use.
	(cp_parser_asm_operand_list): Likewise.
	(cp_parser_asm_clobber_list): Likewise.

2023-01-26  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108503
	* parser.cc (cp_convert_omp_range_for): If cp_finish_decomp has been
	called in !processing_template_decl with processing_template_decl
	temporarily set, clear DECL_HAS_VALUE_EXPR_P on the vars temporarily.
	(cp_finish_omp_range_for): And set it back again here.

2023-01-25  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108525
	* mangle.cc (write_closure_type_name): Don't assume all
	lambda operator() fns are methods.

2023-01-24  Jason Merrill  <jason@redhat.com>

	PR c++/108504
	* parser.cc (cp_lexer_new_main): Pass C_LEX_STRING_NO_JOIN for first
	token, too.

2023-01-24  Jason Merrill  <jason@redhat.com>

	PR c++/108526
	* pt.cc (tsubst_function_decl): Handle static lambda.

2023-01-24  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108474
	* cp-gimplify.cc (cp_fold_r): Revert 2023-01-19 changes.

2023-01-24  Jason Merrill  <jason@redhat.com>

	PR c++/107303
	PR c++/107329
	* cp-gimplify.cc (cp_fold_r) [TARGET_EXPR]: In case of double
	TARGET_EXPR, keep the outer one instead of the inner one.
	(maybe_replace_decl): New.

2023-01-23  Jason Merrill  <jason@redhat.com>

	PR c++/107267
	* cp-gimplify.cc (cp_gimplify_init_expr): Allow unexpected elision
	of trivial types.

2023-01-23  Marek Polacek  <polacek@redhat.com>

	PR c++/107797
	* cvt.cc (ocp_convert): copy_warning when creating a new
	COMPOUND_EXPR.
	* init.cc (build_new_1): Suppress -Wunused-value on
	compiler-generated COMPOUND_EXPRs.

2023-01-23  Jason Merrill  <jason@redhat.com>

	PR c++/108195
	* call.cc (build_user_type_conversion_1): Check whether the
	iterators also find a list ctor.

2023-01-23  Jason Merrill  <jason@redhat.com>

	PR c++/108496
	* decl.cc (grokdeclarator): Check whether DECL_RESULT is already
	set.

2023-01-23  Jason Merrill  <jason@redhat.com>

	PR c++/53288
	DR 1299
	* call.cc (extend_ref_init_temps_1): Handle ptrmem expression.

2023-01-19  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108437
	* cp-tree.h (keep_unused_object_arg): Declare.
	* call.cc (keep_unused_object_arg): No longer static.
	* tree.cc (build_min_non_dep_op_overload): Handle ARRAY_REF
	with overload being static member function.

2023-01-19  Jakub Jelinek  <jakub@redhat.com>

	PR c++/53932
	* cp-gimplify.cc (cp_fold_r): During cp_fully_fold_init replace
	DECL_ANON_UNION_VAR_P VAR_DECLs with their corresponding
	DECL_VALUE_EXPR.

2023-01-16  Jakub Jelinek  <jakub@redhat.com>

	PR c++/105593
	* decl.cc (cp_finish_decl): Check warning_enabled_at
	at the DECL_SOURCE_LOCATION (decl) for OPT_Winit_self instead
	of warn_init_self.

2023-01-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108365
	* typeck.cc (cp_build_binary_op): Use may_shorten_divmod for integral
	division or modulo.

2023-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108285
	* cvt.cc (cp_convert_and_check): For EXCESS_PRECISION_EXPR
	use its operand except that for warning purposes use the original
	EXCESS_PRECISION_EXPR.
	* call.cc (convert_like_internal): Only look through
	EXCESS_PRECISION_EXPR when calling cp_convert, not when calling
	cp_convert_and_check.

2023-01-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/105838
	PR c++/108047
	PR c++/108266
	* call.cc (maybe_init_list_as_range): Always return NULL_TREE if
	processing_template_decl.

2023-01-05  Patrick Palka  <ppalka@redhat.com>

	PR c++/108275
	* parser.cc (cp_parser_class_head): Use dk_deferred instead of
	dk_no_check when parsing the class name.

2023-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108286
	* semantics.cc (finish_omp_target_clauses): Ignore clauses other than
	OMP_CLAUSE_MAP.

2023-01-04  Patrick Palka  <ppalka@redhat.com>

	PR c++/108282
	* decl2.cc (mark_single_function): Ignore mark_used failure
	only in a non-SFINAE context rather than in a SFINAE one.

2023-01-04  Jakub Jelinek  <jakub@redhat.com>

	PR c++/108206
	* decl.cc (merge_default_template_args): Return false if either
	new_parm or old_parm are erroneous.


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