| /* Definitions of target machine for GCC for IA-32. |
| Copyright (C) 1988-2021 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| GCC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* In i386-common.c. */ |
| extern bool ix86_handle_option (struct gcc_options *opts, |
| struct gcc_options *opts_set ATTRIBUTE_UNUSED, |
| const struct cl_decoded_option *decoded, |
| location_t loc); |
| |
| /* Functions in i386.c */ |
| extern bool ix86_target_stack_probe (void); |
| extern bool ix86_can_use_return_insn_p (void); |
| extern bool ix86_function_ms_hook_prologue (const_tree fn); |
| extern void ix86_setup_frame_addresses (void); |
| extern bool ix86_rip_relative_addr_p (struct ix86_address *parts); |
| |
| extern HOST_WIDE_INT ix86_initial_elimination_offset (int, int); |
| extern void ix86_expand_prologue (void); |
| extern void ix86_maybe_emit_epilogue_vzeroupper (void); |
| extern void ix86_expand_epilogue (int); |
| extern void ix86_expand_split_stack_prologue (void); |
| |
| extern void ix86_output_addr_vec_elt (FILE *, int); |
| extern void ix86_output_addr_diff_elt (FILE *, int, int); |
| |
| extern const char *ix86_output_ssemov (rtx_insn *, rtx *); |
| |
| extern enum calling_abi ix86_cfun_abi (void); |
| extern enum calling_abi ix86_function_type_abi (const_tree); |
| |
| extern bool ix86_use_pseudo_pic_reg (void); |
| |
| extern void ix86_reset_previous_fndecl (void); |
| |
| extern bool ix86_using_red_zone (void); |
| |
| extern rtx ix86_gen_scratch_sse_rtx (machine_mode); |
| |
| extern unsigned int ix86_regmode_natural_size (machine_mode); |
| #ifdef RTX_CODE |
| extern int standard_80387_constant_p (rtx); |
| extern const char *standard_80387_constant_opcode (rtx); |
| extern rtx standard_80387_constant_rtx (int); |
| extern int standard_sse_constant_p (rtx, machine_mode); |
| extern const char *standard_sse_constant_opcode (rtx_insn *, rtx *); |
| extern bool ix86_standard_x87sse_constant_load_p (const rtx_insn *, rtx); |
| extern bool ix86_pre_reload_split (void); |
| extern bool symbolic_reference_mentioned_p (rtx); |
| extern bool extended_reg_mentioned_p (rtx); |
| extern bool x86_extended_QIreg_mentioned_p (rtx_insn *); |
| extern bool x86_extended_reg_mentioned_p (rtx); |
| extern bool x86_maybe_negate_const_int (rtx *, machine_mode); |
| extern machine_mode ix86_cc_mode (enum rtx_code, rtx, rtx); |
| |
| extern int avx_vpermilp_parallel (rtx par, machine_mode mode); |
| extern int avx_vperm2f128_parallel (rtx par, machine_mode mode); |
| |
| extern bool ix86_expand_strlen (rtx, rtx, rtx, rtx); |
| extern bool ix86_expand_set_or_cpymem (rtx, rtx, rtx, rtx, rtx, rtx, |
| rtx, rtx, rtx, rtx, bool); |
| extern bool ix86_expand_cmpstrn_or_cmpmem (rtx, rtx, rtx, rtx, rtx, bool); |
| |
| extern bool constant_address_p (rtx); |
| extern bool legitimate_pic_operand_p (rtx); |
| extern bool legitimate_pic_address_disp_p (rtx); |
| extern bool ix86_force_load_from_GOT_p (rtx); |
| extern void print_reg (rtx, int, FILE*); |
| extern void ix86_print_operand (FILE *, rtx, int); |
| |
| extern void split_double_mode (machine_mode, rtx[], int, rtx[], rtx[]); |
| |
| extern const char *output_set_got (rtx, rtx); |
| extern const char *output_387_binary_op (rtx_insn *, rtx*); |
| extern const char *output_387_reg_move (rtx_insn *, rtx*); |
| extern const char *output_fix_trunc (rtx_insn *, rtx*, bool); |
| extern const char *output_fp_compare (rtx_insn *, rtx*, bool, bool); |
| extern const char *output_adjust_stack_and_probe (rtx); |
| extern const char *output_probe_stack_range (rtx, rtx); |
| |
| extern void ix86_output_patchable_area (unsigned int, bool); |
| |
| extern void ix86_expand_clear (rtx); |
| extern void ix86_expand_move (machine_mode, rtx[]); |
| extern void ix86_expand_vector_move (machine_mode, rtx[]); |
| extern void ix86_expand_vector_move_misalign (machine_mode, rtx[]); |
| extern rtx ix86_fixup_binary_operands (enum rtx_code, |
| machine_mode, rtx[]); |
| extern void ix86_fixup_binary_operands_no_copy (enum rtx_code, |
| machine_mode, rtx[]); |
| extern void ix86_expand_binary_operator (enum rtx_code, |
| machine_mode, rtx[]); |
| extern void ix86_expand_vector_logical_operator (enum rtx_code, |
| machine_mode, rtx[]); |
| extern bool ix86_binary_operator_ok (enum rtx_code, machine_mode, rtx[]); |
| extern bool ix86_avoid_lea_for_add (rtx_insn *, rtx[]); |
| extern bool ix86_use_lea_for_mov (rtx_insn *, rtx[]); |
| extern bool ix86_avoid_lea_for_addr (rtx_insn *, rtx[]); |
| extern void ix86_split_lea_for_addr (rtx_insn *, rtx[], machine_mode); |
| extern bool ix86_lea_for_add_ok (rtx_insn *, rtx[]); |
| extern int ix86_last_zero_store_uid; |
| extern bool ix86_vec_interleave_v2df_operator_ok (rtx operands[3], bool high); |
| extern bool ix86_dep_by_shift_count (const_rtx set_insn, const_rtx use_insn); |
| extern bool ix86_agi_dependent (rtx_insn *set_insn, rtx_insn *use_insn); |
| extern void ix86_expand_unary_operator (enum rtx_code, machine_mode, |
| rtx[]); |
| extern rtx ix86_build_const_vector (machine_mode, bool, rtx); |
| extern rtx ix86_build_signbit_mask (machine_mode, bool, bool); |
| extern void ix86_split_convert_uns_si_sse (rtx[]); |
| extern void ix86_expand_convert_uns_didf_sse (rtx, rtx); |
| extern void ix86_expand_convert_uns_sixf_sse (rtx, rtx); |
| extern void ix86_expand_convert_uns_sidf_sse (rtx, rtx); |
| extern void ix86_expand_convert_uns_sisf_sse (rtx, rtx); |
| extern void ix86_expand_convert_sign_didf_sse (rtx, rtx); |
| extern void ix86_expand_vector_convert_uns_vsivsf (rtx, rtx); |
| extern rtx ix86_expand_adjust_ufix_to_sfix_si (rtx, rtx *); |
| extern enum ix86_fpcmp_strategy ix86_fp_comparison_strategy (enum rtx_code); |
| extern void ix86_expand_fp_absneg_operator (enum rtx_code, machine_mode, |
| rtx[]); |
| extern void ix86_split_fp_absneg_operator (enum rtx_code, machine_mode, |
| rtx[]); |
| extern void ix86_expand_copysign (rtx []); |
| extern void ix86_expand_xorsign (rtx []); |
| extern bool ix86_unary_operator_ok (enum rtx_code, machine_mode, rtx[]); |
| extern bool ix86_match_ccmode (rtx, machine_mode); |
| extern void ix86_expand_branch (enum rtx_code, rtx, rtx, rtx); |
| extern void ix86_expand_setcc (rtx, enum rtx_code, rtx, rtx); |
| extern bool ix86_expand_int_movcc (rtx[]); |
| extern bool ix86_expand_fp_movcc (rtx[]); |
| extern bool ix86_expand_fp_vcond (rtx[]); |
| extern bool ix86_expand_int_vcond (rtx[]); |
| extern void ix86_expand_vec_perm (rtx[]); |
| extern bool ix86_expand_mask_vec_cmp (rtx, enum rtx_code, rtx, rtx); |
| extern bool ix86_expand_int_vec_cmp (rtx[]); |
| extern bool ix86_expand_fp_vec_cmp (rtx[]); |
| extern void ix86_expand_sse_movcc (rtx, rtx, rtx, rtx); |
| extern void ix86_expand_sse_unpack (rtx, rtx, bool, bool); |
| extern bool ix86_expand_int_addcc (rtx[]); |
| extern rtx_insn *ix86_expand_call (rtx, rtx, rtx, rtx, rtx, bool); |
| extern void ix86_split_call_vzeroupper (rtx, rtx); |
| extern void x86_initialize_trampoline (rtx, rtx, rtx); |
| extern rtx ix86_zero_extend_to_Pmode (rtx); |
| extern void ix86_split_long_move (rtx[]); |
| extern void ix86_split_ashl (rtx *, rtx, machine_mode); |
| extern void ix86_split_ashr (rtx *, rtx, machine_mode); |
| extern void ix86_split_lshr (rtx *, rtx, machine_mode); |
| extern rtx ix86_find_base_term (rtx); |
| extern bool ix86_check_movabs (rtx, int); |
| extern bool ix86_check_no_addr_space (rtx); |
| extern void ix86_split_idivmod (machine_mode, rtx[], bool); |
| extern bool ix86_hardreg_mov_ok (rtx, rtx); |
| |
| extern rtx assign_386_stack_local (machine_mode, enum ix86_stack_slot); |
| extern int ix86_attr_length_immediate_default (rtx_insn *, bool); |
| extern int ix86_attr_length_address_default (rtx_insn *); |
| extern int ix86_attr_length_vex_default (rtx_insn *, bool, bool); |
| |
| extern rtx ix86_libcall_value (machine_mode); |
| extern bool ix86_function_arg_regno_p (int); |
| extern void ix86_asm_output_function_label (FILE *, const char *, tree); |
| extern void ix86_call_abi_override (const_tree); |
| extern int ix86_reg_parm_stack_space (const_tree); |
| |
| extern bool ix86_libc_has_function (enum function_class fn_class); |
| |
| extern void x86_order_regs_for_local_alloc (void); |
| extern void x86_function_profiler (FILE *, int); |
| extern void x86_emit_floatuns (rtx [2]); |
| extern void ix86_emit_fp_unordered_jump (rtx); |
| |
| extern void ix86_emit_i387_sinh (rtx, rtx); |
| extern void ix86_emit_i387_cosh (rtx, rtx); |
| extern void ix86_emit_i387_tanh (rtx, rtx); |
| extern void ix86_emit_i387_asinh (rtx, rtx); |
| extern void ix86_emit_i387_acosh (rtx, rtx); |
| extern void ix86_emit_i387_atanh (rtx, rtx); |
| extern void ix86_emit_i387_log1p (rtx, rtx); |
| extern void ix86_emit_i387_round (rtx, rtx); |
| extern void ix86_emit_swdivsf (rtx, rtx, rtx, machine_mode); |
| extern void ix86_emit_swsqrtsf (rtx, rtx, machine_mode, bool); |
| |
| extern enum rtx_code ix86_reverse_condition (enum rtx_code, machine_mode); |
| |
| extern void ix86_expand_lround (rtx, rtx); |
| extern void ix86_expand_lfloorceil (rtx, rtx, bool); |
| extern void ix86_expand_rint (rtx, rtx); |
| extern void ix86_expand_floorceil (rtx, rtx, bool); |
| extern void ix86_expand_floorceildf_32 (rtx, rtx, bool); |
| extern void ix86_expand_trunc (rtx, rtx); |
| extern void ix86_expand_truncdf_32 (rtx, rtx); |
| extern void ix86_expand_round (rtx, rtx); |
| extern void ix86_expand_rounddf_32 (rtx, rtx); |
| extern void ix86_expand_round_sse4 (rtx, rtx); |
| |
| extern void ix86_expand_vecop_qihi (enum rtx_code, rtx, rtx, rtx); |
| extern rtx ix86_split_stack_guard (void); |
| |
| extern void ix86_move_vector_high_sse_to_mmx (rtx); |
| extern void ix86_split_mmx_pack (rtx[], enum rtx_code); |
| extern void ix86_split_mmx_punpck (rtx[], bool); |
| extern void ix86_expand_avx_vzeroupper (void); |
| |
| #ifdef TREE_CODE |
| extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree, int); |
| #endif /* TREE_CODE */ |
| |
| #endif /* RTX_CODE */ |
| |
| #ifdef TREE_CODE |
| extern int ix86_data_alignment (tree, unsigned int, bool); |
| extern unsigned int ix86_local_alignment (tree, machine_mode, |
| unsigned int, bool = false); |
| extern unsigned int ix86_minimum_alignment (tree, machine_mode, |
| unsigned int); |
| extern tree ix86_handle_shared_attribute (tree *, tree, tree, int, bool *); |
| extern tree ix86_handle_selectany_attribute (tree *, tree, tree, int, bool *); |
| extern int x86_field_alignment (tree, int); |
| extern tree ix86_valid_target_attribute_tree (tree, tree, |
| struct gcc_options *, |
| struct gcc_options *, bool); |
| extern unsigned int ix86_get_callcvt (const_tree); |
| |
| #endif |
| |
| extern rtx ix86_tls_module_base (void); |
| extern bool ix86_tls_address_pattern_p (rtx); |
| extern rtx ix86_rewrite_tls_address (rtx); |
| |
| extern void ix86_expand_vector_init (bool, rtx, rtx); |
| extern void ix86_expand_vector_set (bool, rtx, rtx, int); |
| extern void ix86_expand_vector_set_var (rtx, rtx, rtx); |
| extern void ix86_expand_vector_extract (bool, rtx, rtx, int); |
| extern void ix86_expand_reduc (rtx (*)(rtx, rtx, rtx), rtx, rtx); |
| |
| extern void ix86_expand_vec_extract_even_odd (rtx, rtx, rtx, unsigned); |
| extern bool ix86_expand_pextr (rtx *); |
| extern bool ix86_expand_pinsr (rtx *); |
| extern void ix86_expand_mul_widen_evenodd (rtx, rtx, rtx, bool, bool); |
| extern void ix86_expand_mul_widen_hilo (rtx, rtx, rtx, bool, bool); |
| extern void ix86_expand_sse2_mulv4si3 (rtx, rtx, rtx); |
| extern void ix86_expand_sse2_mulvxdi3 (rtx, rtx, rtx); |
| extern void ix86_expand_sse2_abs (rtx, rtx); |
| extern bool ix86_expand_vector_init_duplicate (bool, machine_mode, rtx, |
| rtx); |
| extern bool ix86_extract_perm_from_pool_constant (int*, rtx); |
| |
| /* In i386-c.c */ |
| extern void ix86_target_macros (void); |
| extern void ix86_register_pragmas (void); |
| |
| /* In i386-d.c */ |
| extern void ix86_d_target_versions (void); |
| extern void ix86_d_register_target_info (void); |
| extern bool ix86_d_has_stdcall_convention (unsigned int *, unsigned int *); |
| |
| /* In winnt.c */ |
| extern void i386_pe_unique_section (tree, int); |
| extern void i386_pe_declare_function_type (FILE *, const char *, int); |
| extern void i386_pe_record_external_function (tree, const char *); |
| extern void i386_pe_maybe_record_exported_symbol (tree, const char *, int); |
| extern void i386_pe_encode_section_info (tree, rtx, int); |
| extern bool i386_pe_binds_local_p (const_tree); |
| extern const char *i386_pe_strip_name_encoding_full (const char *); |
| extern bool i386_pe_valid_dllimport_attribute_p (const_tree); |
| extern unsigned int i386_pe_section_type_flags (tree, const char *, int); |
| extern void i386_pe_asm_named_section (const char *, unsigned int, tree); |
| extern void i386_pe_asm_output_aligned_decl_common (FILE *, tree, |
| const char *, |
| HOST_WIDE_INT, |
| HOST_WIDE_INT); |
| extern void i386_pe_file_end (void); |
| extern void i386_pe_asm_lto_start (void); |
| extern void i386_pe_asm_lto_end (void); |
| extern void i386_pe_start_function (FILE *, const char *, tree); |
| extern void i386_pe_end_function (FILE *, const char *, tree); |
| extern void i386_pe_end_cold_function (FILE *, const char *, tree); |
| extern void i386_pe_assemble_visibility (tree, int); |
| extern tree i386_pe_mangle_decl_assembler_name (tree, tree); |
| extern tree i386_pe_mangle_assembler_name (const char *); |
| extern void i386_pe_record_stub (const char *); |
| |
| extern void i386_pe_seh_init (FILE *); |
| extern void i386_pe_seh_end_prologue (FILE *); |
| extern void i386_pe_seh_cold_init (FILE *, const char *); |
| extern void i386_pe_seh_unwind_emit (FILE *, rtx_insn *); |
| extern void i386_pe_seh_emit_except_personality (rtx); |
| extern void i386_pe_seh_init_sections (void); |
| |
| /* In winnt-cxx.c and winnt-stubs.c */ |
| extern void i386_pe_adjust_class_at_definition (tree); |
| extern bool i386_pe_type_dllimport_p (tree); |
| extern bool i386_pe_type_dllexport_p (tree); |
| |
| extern int i386_pe_reloc_rw_mask (void); |
| |
| extern char internal_label_prefix[16]; |
| extern int internal_label_prefix_len; |
| |
| extern bool ix86_epilogue_uses (int); |
| |
| struct ix86_address |
| { |
| rtx base, index, disp; |
| HOST_WIDE_INT scale; |
| addr_space_t seg; |
| }; |
| |
| extern bool ix86_decompose_address (rtx, struct ix86_address *); |
| extern int memory_address_length (rtx, bool); |
| extern void x86_output_aligned_bss (FILE *, tree, const char *, |
| unsigned HOST_WIDE_INT, unsigned); |
| extern void x86_elf_aligned_decl_common (FILE *, tree, const char *, |
| unsigned HOST_WIDE_INT, unsigned); |
| |
| #ifdef RTX_CODE |
| extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *, |
| enum rtx_code *, enum rtx_code *); |
| extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code); |
| #endif |
| extern int asm_preferred_eh_data_format (int, int); |
| |
| #ifdef HAVE_ATTR_cpu |
| extern enum attr_cpu ix86_schedule; |
| #endif |
| |
| extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op); |
| extern const char * ix86_output_indirect_jmp (rtx call_op); |
| extern const char * ix86_output_function_return (bool long_p); |
| extern const char * ix86_output_indirect_function_return (rtx ret_op); |
| extern void ix86_split_simple_return_pop_internal (rtx); |
| extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load, |
| machine_mode mode); |
| extern int ix86_min_insn_size (rtx_insn *); |
| |
| extern int ix86_issue_rate (void); |
| extern int ix86_adjust_cost (rtx_insn *insn, int dep_type, rtx_insn *dep_insn, |
| int cost, unsigned int); |
| extern int ia32_multipass_dfa_lookahead (void); |
| extern bool ix86_macro_fusion_p (void); |
| extern bool ix86_macro_fusion_pair_p (rtx_insn *condgen, rtx_insn *condjmp); |
| |
| extern bool ix86_bd_has_dispatch (rtx_insn *insn, int action); |
| extern void ix86_bd_do_dispatch (rtx_insn *insn, int mode); |
| |
| extern void ix86_core2i7_init_hooks (void); |
| |
| extern int ix86_atom_sched_reorder (FILE *, int, rtx_insn **, int *, int); |
| |
| extern poly_int64 ix86_push_rounding (poly_int64); |
| |
| #ifdef RTX_CODE |
| /* Target data for multipass lookahead scheduling. |
| Currently used for Core 2/i7 tuning. */ |
| struct ix86_first_cycle_multipass_data_ |
| { |
| /* The length (in bytes) of ifetch block in this solution. */ |
| int ifetch_block_len; |
| /* Number of instructions in ifetch block in this solution. */ |
| int ifetch_block_n_insns; |
| /* Bitmap to remember changes to ready_try for backtracking. */ |
| sbitmap ready_try_change; |
| /* Size of the bitmap. */ |
| int ready_try_change_size; |
| }; |
| # define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DATA_T \ |
| struct ix86_first_cycle_multipass_data_ |
| #endif /* RTX_CODE */ |
| |
| const addr_space_t ADDR_SPACE_SEG_FS = 1; |
| const addr_space_t ADDR_SPACE_SEG_GS = 2; |
| |
| namespace gcc { class context; } |
| class rtl_opt_pass; |
| |
| extern rtl_opt_pass *make_pass_insert_vzeroupper (gcc::context *); |
| extern rtl_opt_pass *make_pass_stv (gcc::context *); |
| extern rtl_opt_pass *make_pass_insert_endbr_and_patchable_area |
| (gcc::context *); |
| extern rtl_opt_pass *make_pass_remove_partial_avx_dependency |
| (gcc::context *); |