1*38fd1498Szrj /* Definitions of target machine for GCC for IA-32. 2*38fd1498Szrj Copyright (C) 1988-2018 Free Software Foundation, Inc. 3*38fd1498Szrj 4*38fd1498Szrj This file is part of GCC. 5*38fd1498Szrj 6*38fd1498Szrj GCC is free software; you can redistribute it and/or modify 7*38fd1498Szrj it under the terms of the GNU General Public License as published by 8*38fd1498Szrj the Free Software Foundation; either version 3, or (at your option) 9*38fd1498Szrj any later version. 10*38fd1498Szrj 11*38fd1498Szrj GCC is distributed in the hope that it will be useful, 12*38fd1498Szrj but WITHOUT ANY WARRANTY; without even the implied warranty of 13*38fd1498Szrj MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14*38fd1498Szrj GNU General Public License for more details. 15*38fd1498Szrj 16*38fd1498Szrj You should have received a copy of the GNU General Public License 17*38fd1498Szrj along with GCC; see the file COPYING3. If not see 18*38fd1498Szrj <http://www.gnu.org/licenses/>. */ 19*38fd1498Szrj 20*38fd1498Szrj /* In i386-common.c. */ 21*38fd1498Szrj extern bool ix86_handle_option (struct gcc_options *opts, 22*38fd1498Szrj struct gcc_options *opts_set ATTRIBUTE_UNUSED, 23*38fd1498Szrj const struct cl_decoded_option *decoded, 24*38fd1498Szrj location_t loc); 25*38fd1498Szrj 26*38fd1498Szrj /* Functions in i386.c */ 27*38fd1498Szrj extern bool ix86_target_stack_probe (void); 28*38fd1498Szrj extern bool ix86_can_use_return_insn_p (void); 29*38fd1498Szrj extern void ix86_setup_frame_addresses (void); 30*38fd1498Szrj extern bool ix86_rip_relative_addr_p (struct ix86_address *parts); 31*38fd1498Szrj 32*38fd1498Szrj extern HOST_WIDE_INT ix86_initial_elimination_offset (int, int); 33*38fd1498Szrj extern void ix86_expand_prologue (void); 34*38fd1498Szrj extern void ix86_maybe_emit_epilogue_vzeroupper (void); 35*38fd1498Szrj extern void ix86_expand_epilogue (int); 36*38fd1498Szrj extern void ix86_expand_split_stack_prologue (void); 37*38fd1498Szrj 38*38fd1498Szrj extern void ix86_output_addr_vec_elt (FILE *, int); 39*38fd1498Szrj extern void ix86_output_addr_diff_elt (FILE *, int, int); 40*38fd1498Szrj 41*38fd1498Szrj extern enum calling_abi ix86_cfun_abi (void); 42*38fd1498Szrj extern enum calling_abi ix86_function_type_abi (const_tree); 43*38fd1498Szrj 44*38fd1498Szrj extern bool ix86_use_pseudo_pic_reg (void); 45*38fd1498Szrj 46*38fd1498Szrj extern void ix86_reset_previous_fndecl (void); 47*38fd1498Szrj 48*38fd1498Szrj extern bool ix86_using_red_zone (void); 49*38fd1498Szrj 50*38fd1498Szrj #ifdef RTX_CODE 51*38fd1498Szrj extern int standard_80387_constant_p (rtx); 52*38fd1498Szrj extern const char *standard_80387_constant_opcode (rtx); 53*38fd1498Szrj extern rtx standard_80387_constant_rtx (int); 54*38fd1498Szrj extern int standard_sse_constant_p (rtx, machine_mode); 55*38fd1498Szrj extern const char *standard_sse_constant_opcode (rtx_insn *, rtx *); 56*38fd1498Szrj extern bool ix86_standard_x87sse_constant_load_p (const rtx_insn *, rtx); 57*38fd1498Szrj extern bool symbolic_reference_mentioned_p (rtx); 58*38fd1498Szrj extern bool extended_reg_mentioned_p (rtx); 59*38fd1498Szrj extern bool x86_extended_QIreg_mentioned_p (rtx_insn *); 60*38fd1498Szrj extern bool x86_extended_reg_mentioned_p (rtx); 61*38fd1498Szrj extern bool x86_maybe_negate_const_int (rtx *, machine_mode); 62*38fd1498Szrj extern machine_mode ix86_cc_mode (enum rtx_code, rtx, rtx); 63*38fd1498Szrj 64*38fd1498Szrj extern int avx_vpermilp_parallel (rtx par, machine_mode mode); 65*38fd1498Szrj extern int avx_vperm2f128_parallel (rtx par, machine_mode mode); 66*38fd1498Szrj 67*38fd1498Szrj extern bool ix86_expand_strlen (rtx, rtx, rtx, rtx); 68*38fd1498Szrj extern bool ix86_expand_set_or_movmem (rtx, rtx, rtx, rtx, rtx, rtx, 69*38fd1498Szrj rtx, rtx, rtx, rtx, bool); 70*38fd1498Szrj 71*38fd1498Szrj extern bool constant_address_p (rtx); 72*38fd1498Szrj extern bool legitimate_pic_operand_p (rtx); 73*38fd1498Szrj extern bool legitimate_pic_address_disp_p (rtx); 74*38fd1498Szrj extern bool ix86_force_load_from_GOT_p (rtx); 75*38fd1498Szrj extern void print_reg (rtx, int, FILE*); 76*38fd1498Szrj extern void ix86_print_operand (FILE *, rtx, int); 77*38fd1498Szrj 78*38fd1498Szrj extern void split_double_mode (machine_mode, rtx[], int, rtx[], rtx[]); 79*38fd1498Szrj 80*38fd1498Szrj extern const char *output_set_got (rtx, rtx); 81*38fd1498Szrj extern const char *output_387_binary_op (rtx_insn *, rtx*); 82*38fd1498Szrj extern const char *output_387_reg_move (rtx_insn *, rtx*); 83*38fd1498Szrj extern const char *output_fix_trunc (rtx_insn *, rtx*, bool); 84*38fd1498Szrj extern const char *output_fp_compare (rtx_insn *, rtx*, bool, bool); 85*38fd1498Szrj extern const char *output_adjust_stack_and_probe (rtx); 86*38fd1498Szrj extern const char *output_probe_stack_range (rtx, rtx); 87*38fd1498Szrj 88*38fd1498Szrj extern void ix86_expand_clear (rtx); 89*38fd1498Szrj extern void ix86_expand_move (machine_mode, rtx[]); 90*38fd1498Szrj extern void ix86_expand_vector_move (machine_mode, rtx[]); 91*38fd1498Szrj extern void ix86_expand_vector_move_misalign (machine_mode, rtx[]); 92*38fd1498Szrj extern rtx ix86_fixup_binary_operands (enum rtx_code, 93*38fd1498Szrj machine_mode, rtx[]); 94*38fd1498Szrj extern void ix86_fixup_binary_operands_no_copy (enum rtx_code, 95*38fd1498Szrj machine_mode, rtx[]); 96*38fd1498Szrj extern void ix86_expand_binary_operator (enum rtx_code, 97*38fd1498Szrj machine_mode, rtx[]); 98*38fd1498Szrj extern void ix86_expand_vector_logical_operator (enum rtx_code, 99*38fd1498Szrj machine_mode, rtx[]); 100*38fd1498Szrj extern bool ix86_binary_operator_ok (enum rtx_code, machine_mode, rtx[]); 101*38fd1498Szrj extern bool ix86_avoid_lea_for_add (rtx_insn *, rtx[]); 102*38fd1498Szrj extern bool ix86_use_lea_for_mov (rtx_insn *, rtx[]); 103*38fd1498Szrj extern bool ix86_avoid_lea_for_addr (rtx_insn *, rtx[]); 104*38fd1498Szrj extern void ix86_split_lea_for_addr (rtx_insn *, rtx[], machine_mode); 105*38fd1498Szrj extern bool ix86_lea_for_add_ok (rtx_insn *, rtx[]); 106*38fd1498Szrj extern bool ix86_vec_interleave_v2df_operator_ok (rtx operands[3], bool high); 107*38fd1498Szrj extern bool ix86_dep_by_shift_count (const_rtx set_insn, const_rtx use_insn); 108*38fd1498Szrj extern bool ix86_agi_dependent (rtx_insn *set_insn, rtx_insn *use_insn); 109*38fd1498Szrj extern void ix86_expand_unary_operator (enum rtx_code, machine_mode, 110*38fd1498Szrj rtx[]); 111*38fd1498Szrj extern rtx ix86_build_const_vector (machine_mode, bool, rtx); 112*38fd1498Szrj extern rtx ix86_build_signbit_mask (machine_mode, bool, bool); 113*38fd1498Szrj extern void ix86_split_convert_uns_si_sse (rtx[]); 114*38fd1498Szrj extern void ix86_expand_convert_uns_didf_sse (rtx, rtx); 115*38fd1498Szrj extern void ix86_expand_convert_uns_sixf_sse (rtx, rtx); 116*38fd1498Szrj extern void ix86_expand_convert_uns_sidf_sse (rtx, rtx); 117*38fd1498Szrj extern void ix86_expand_convert_uns_sisf_sse (rtx, rtx); 118*38fd1498Szrj extern void ix86_expand_convert_sign_didf_sse (rtx, rtx); 119*38fd1498Szrj extern void ix86_expand_vector_convert_uns_vsivsf (rtx, rtx); 120*38fd1498Szrj extern rtx ix86_expand_adjust_ufix_to_sfix_si (rtx, rtx *); 121*38fd1498Szrj extern enum ix86_fpcmp_strategy ix86_fp_comparison_strategy (enum rtx_code); 122*38fd1498Szrj extern void ix86_expand_fp_absneg_operator (enum rtx_code, machine_mode, 123*38fd1498Szrj rtx[]); 124*38fd1498Szrj extern void ix86_expand_copysign (rtx []); 125*38fd1498Szrj extern void ix86_split_copysign_const (rtx []); 126*38fd1498Szrj extern void ix86_split_copysign_var (rtx []); 127*38fd1498Szrj extern bool ix86_unary_operator_ok (enum rtx_code, machine_mode, rtx[]); 128*38fd1498Szrj extern bool ix86_match_ccmode (rtx, machine_mode); 129*38fd1498Szrj extern void ix86_expand_branch (enum rtx_code, rtx, rtx, rtx); 130*38fd1498Szrj extern void ix86_expand_setcc (rtx, enum rtx_code, rtx, rtx); 131*38fd1498Szrj extern bool ix86_expand_int_movcc (rtx[]); 132*38fd1498Szrj extern bool ix86_expand_fp_movcc (rtx[]); 133*38fd1498Szrj extern bool ix86_expand_fp_vcond (rtx[]); 134*38fd1498Szrj extern bool ix86_expand_int_vcond (rtx[]); 135*38fd1498Szrj extern void ix86_expand_vec_perm (rtx[]); 136*38fd1498Szrj extern bool ix86_expand_mask_vec_cmp (rtx[]); 137*38fd1498Szrj extern bool ix86_expand_int_vec_cmp (rtx[]); 138*38fd1498Szrj extern bool ix86_expand_fp_vec_cmp (rtx[]); 139*38fd1498Szrj extern void ix86_expand_sse_movcc (rtx, rtx, rtx, rtx); 140*38fd1498Szrj extern void ix86_expand_sse_unpack (rtx, rtx, bool, bool); 141*38fd1498Szrj extern bool ix86_expand_int_addcc (rtx[]); 142*38fd1498Szrj extern rtx ix86_expand_call (rtx, rtx, rtx, rtx, rtx, bool); 143*38fd1498Szrj extern void ix86_split_call_vzeroupper (rtx, rtx); 144*38fd1498Szrj extern void x86_initialize_trampoline (rtx, rtx, rtx); 145*38fd1498Szrj extern rtx ix86_zero_extend_to_Pmode (rtx); 146*38fd1498Szrj extern void ix86_split_long_move (rtx[]); 147*38fd1498Szrj extern void ix86_split_ashl (rtx *, rtx, machine_mode); 148*38fd1498Szrj extern void ix86_split_ashr (rtx *, rtx, machine_mode); 149*38fd1498Szrj extern void ix86_split_lshr (rtx *, rtx, machine_mode); 150*38fd1498Szrj extern rtx ix86_find_base_term (rtx); 151*38fd1498Szrj extern bool ix86_check_movabs (rtx, int); 152*38fd1498Szrj extern bool ix86_check_no_addr_space (rtx); 153*38fd1498Szrj extern void ix86_split_idivmod (machine_mode, rtx[], bool); 154*38fd1498Szrj 155*38fd1498Szrj extern rtx assign_386_stack_local (machine_mode, enum ix86_stack_slot); 156*38fd1498Szrj extern int ix86_attr_length_immediate_default (rtx_insn *, bool); 157*38fd1498Szrj extern int ix86_attr_length_address_default (rtx_insn *); 158*38fd1498Szrj extern int ix86_attr_length_vex_default (rtx_insn *, bool, bool); 159*38fd1498Szrj 160*38fd1498Szrj extern rtx ix86_libcall_value (machine_mode); 161*38fd1498Szrj extern bool ix86_function_arg_regno_p (int); 162*38fd1498Szrj extern void ix86_asm_output_function_label (FILE *, const char *, tree); 163*38fd1498Szrj extern void ix86_call_abi_override (const_tree); 164*38fd1498Szrj extern int ix86_reg_parm_stack_space (const_tree); 165*38fd1498Szrj 166*38fd1498Szrj extern bool ix86_libc_has_function (enum function_class fn_class); 167*38fd1498Szrj 168*38fd1498Szrj extern void x86_order_regs_for_local_alloc (void); 169*38fd1498Szrj extern void x86_function_profiler (FILE *, int); 170*38fd1498Szrj extern void x86_emit_floatuns (rtx [2]); 171*38fd1498Szrj extern void ix86_emit_fp_unordered_jump (rtx); 172*38fd1498Szrj 173*38fd1498Szrj extern void ix86_emit_i387_log1p (rtx, rtx); 174*38fd1498Szrj extern void ix86_emit_i387_round (rtx, rtx); 175*38fd1498Szrj extern void ix86_emit_swdivsf (rtx, rtx, rtx, machine_mode); 176*38fd1498Szrj extern void ix86_emit_swsqrtsf (rtx, rtx, machine_mode, bool); 177*38fd1498Szrj 178*38fd1498Szrj extern enum rtx_code ix86_reverse_condition (enum rtx_code, machine_mode); 179*38fd1498Szrj 180*38fd1498Szrj extern void ix86_expand_lround (rtx, rtx); 181*38fd1498Szrj extern void ix86_expand_lfloorceil (rtx, rtx, bool); 182*38fd1498Szrj extern void ix86_expand_rint (rtx, rtx); 183*38fd1498Szrj extern void ix86_expand_floorceil (rtx, rtx, bool); 184*38fd1498Szrj extern void ix86_expand_floorceildf_32 (rtx, rtx, bool); 185*38fd1498Szrj extern void ix86_expand_round_sse4 (rtx, rtx); 186*38fd1498Szrj extern void ix86_expand_round (rtx, rtx); 187*38fd1498Szrj extern void ix86_expand_rounddf_32 (rtx, rtx); 188*38fd1498Szrj extern void ix86_expand_trunc (rtx, rtx); 189*38fd1498Szrj extern void ix86_expand_truncdf_32 (rtx, rtx); 190*38fd1498Szrj 191*38fd1498Szrj extern void ix86_expand_vecop_qihi (enum rtx_code, rtx, rtx, rtx); 192*38fd1498Szrj 193*38fd1498Szrj extern rtx ix86_split_stack_guard (void); 194*38fd1498Szrj 195*38fd1498Szrj #ifdef TREE_CODE 196*38fd1498Szrj extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree, int); 197*38fd1498Szrj #endif /* TREE_CODE */ 198*38fd1498Szrj 199*38fd1498Szrj #endif /* RTX_CODE */ 200*38fd1498Szrj 201*38fd1498Szrj #ifdef TREE_CODE 202*38fd1498Szrj extern int ix86_data_alignment (tree, int, bool); 203*38fd1498Szrj extern unsigned int ix86_local_alignment (tree, machine_mode, 204*38fd1498Szrj unsigned int); 205*38fd1498Szrj extern unsigned int ix86_minimum_alignment (tree, machine_mode, 206*38fd1498Szrj unsigned int); 207*38fd1498Szrj extern tree ix86_handle_shared_attribute (tree *, tree, tree, int, bool *); 208*38fd1498Szrj extern tree ix86_handle_selectany_attribute (tree *, tree, tree, int, bool *); 209*38fd1498Szrj extern int x86_field_alignment (tree, int); 210*38fd1498Szrj extern tree ix86_valid_target_attribute_tree (tree, 211*38fd1498Szrj struct gcc_options *, 212*38fd1498Szrj struct gcc_options *); 213*38fd1498Szrj extern unsigned int ix86_get_callcvt (const_tree); 214*38fd1498Szrj 215*38fd1498Szrj #endif 216*38fd1498Szrj 217*38fd1498Szrj extern rtx ix86_tls_module_base (void); 218*38fd1498Szrj extern bool ix86_tls_address_pattern_p (rtx); 219*38fd1498Szrj extern rtx ix86_rewrite_tls_address (rtx); 220*38fd1498Szrj 221*38fd1498Szrj extern void ix86_expand_vector_init (bool, rtx, rtx); 222*38fd1498Szrj extern void ix86_expand_vector_set (bool, rtx, rtx, int); 223*38fd1498Szrj extern void ix86_expand_vector_extract (bool, rtx, rtx, int); 224*38fd1498Szrj extern void ix86_expand_reduc (rtx (*)(rtx, rtx, rtx), rtx, rtx); 225*38fd1498Szrj 226*38fd1498Szrj extern void ix86_expand_vec_extract_even_odd (rtx, rtx, rtx, unsigned); 227*38fd1498Szrj extern bool ix86_expand_pextr (rtx *); 228*38fd1498Szrj extern bool ix86_expand_pinsr (rtx *); 229*38fd1498Szrj extern void ix86_expand_mul_widen_evenodd (rtx, rtx, rtx, bool, bool); 230*38fd1498Szrj extern void ix86_expand_mul_widen_hilo (rtx, rtx, rtx, bool, bool); 231*38fd1498Szrj extern void ix86_expand_sse2_mulv4si3 (rtx, rtx, rtx); 232*38fd1498Szrj extern void ix86_expand_sse2_mulvxdi3 (rtx, rtx, rtx); 233*38fd1498Szrj extern void ix86_expand_sse2_abs (rtx, rtx); 234*38fd1498Szrj 235*38fd1498Szrj extern bool ix86_bnd_prefixed_insn_p (rtx); 236*38fd1498Szrj 237*38fd1498Szrj /* In i386-c.c */ 238*38fd1498Szrj extern void ix86_target_macros (void); 239*38fd1498Szrj extern void ix86_register_pragmas (void); 240*38fd1498Szrj 241*38fd1498Szrj /* In winnt.c */ 242*38fd1498Szrj extern void i386_pe_unique_section (tree, int); 243*38fd1498Szrj extern void i386_pe_declare_function_type (FILE *, const char *, int); 244*38fd1498Szrj extern void i386_pe_record_external_function (tree, const char *); 245*38fd1498Szrj extern void i386_pe_maybe_record_exported_symbol (tree, const char *, int); 246*38fd1498Szrj extern void i386_pe_encode_section_info (tree, rtx, int); 247*38fd1498Szrj extern bool i386_pe_binds_local_p (const_tree); 248*38fd1498Szrj extern const char *i386_pe_strip_name_encoding_full (const char *); 249*38fd1498Szrj extern bool i386_pe_valid_dllimport_attribute_p (const_tree); 250*38fd1498Szrj extern unsigned int i386_pe_section_type_flags (tree, const char *, int); 251*38fd1498Szrj extern void i386_pe_asm_named_section (const char *, unsigned int, tree); 252*38fd1498Szrj extern void i386_pe_asm_output_aligned_decl_common (FILE *, tree, 253*38fd1498Szrj const char *, 254*38fd1498Szrj HOST_WIDE_INT, 255*38fd1498Szrj HOST_WIDE_INT); 256*38fd1498Szrj extern void i386_pe_file_end (void); 257*38fd1498Szrj extern void i386_pe_asm_lto_start (void); 258*38fd1498Szrj extern void i386_pe_asm_lto_end (void); 259*38fd1498Szrj extern void i386_pe_start_function (FILE *, const char *, tree); 260*38fd1498Szrj extern void i386_pe_end_function (FILE *, const char *, tree); 261*38fd1498Szrj extern void i386_pe_end_cold_function (FILE *, const char *, tree); 262*38fd1498Szrj extern void i386_pe_assemble_visibility (tree, int); 263*38fd1498Szrj extern tree i386_pe_mangle_decl_assembler_name (tree, tree); 264*38fd1498Szrj extern tree i386_pe_mangle_assembler_name (const char *); 265*38fd1498Szrj extern void i386_pe_record_stub (const char *); 266*38fd1498Szrj 267*38fd1498Szrj extern void i386_pe_seh_init (FILE *); 268*38fd1498Szrj extern void i386_pe_seh_end_prologue (FILE *); 269*38fd1498Szrj extern void i386_pe_seh_cold_init (FILE *, const char *); 270*38fd1498Szrj extern void i386_pe_seh_unwind_emit (FILE *, rtx_insn *); 271*38fd1498Szrj extern void i386_pe_seh_emit_except_personality (rtx); 272*38fd1498Szrj extern void i386_pe_seh_init_sections (void); 273*38fd1498Szrj 274*38fd1498Szrj /* In winnt-cxx.c and winnt-stubs.c */ 275*38fd1498Szrj extern void i386_pe_adjust_class_at_definition (tree); 276*38fd1498Szrj extern bool i386_pe_type_dllimport_p (tree); 277*38fd1498Szrj extern bool i386_pe_type_dllexport_p (tree); 278*38fd1498Szrj 279*38fd1498Szrj extern int i386_pe_reloc_rw_mask (void); 280*38fd1498Szrj 281*38fd1498Szrj extern char internal_label_prefix[16]; 282*38fd1498Szrj extern int internal_label_prefix_len; 283*38fd1498Szrj 284*38fd1498Szrj extern bool ix86_epilogue_uses (int); 285*38fd1498Szrj 286*38fd1498Szrj struct ix86_address 287*38fd1498Szrj { 288*38fd1498Szrj rtx base, index, disp; 289*38fd1498Szrj HOST_WIDE_INT scale; 290*38fd1498Szrj addr_space_t seg; 291*38fd1498Szrj }; 292*38fd1498Szrj 293*38fd1498Szrj extern int ix86_decompose_address (rtx, struct ix86_address *); 294*38fd1498Szrj extern int memory_address_length (rtx, bool); 295*38fd1498Szrj extern void x86_output_aligned_bss (FILE *, tree, const char *, 296*38fd1498Szrj unsigned HOST_WIDE_INT, int); 297*38fd1498Szrj extern void x86_elf_aligned_decl_common (FILE *, tree, const char *, 298*38fd1498Szrj unsigned HOST_WIDE_INT, int); 299*38fd1498Szrj 300*38fd1498Szrj #ifdef RTX_CODE 301*38fd1498Szrj extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *, 302*38fd1498Szrj enum rtx_code *, enum rtx_code *); 303*38fd1498Szrj extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code); 304*38fd1498Szrj #endif 305*38fd1498Szrj extern int asm_preferred_eh_data_format (int, int); 306*38fd1498Szrj 307*38fd1498Szrj #ifdef HAVE_ATTR_cpu 308*38fd1498Szrj extern enum attr_cpu ix86_schedule; 309*38fd1498Szrj #endif 310*38fd1498Szrj 311*38fd1498Szrj extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op); 312*38fd1498Szrj extern const char * ix86_output_indirect_jmp (rtx call_op); 313*38fd1498Szrj extern const char * ix86_output_function_return (bool long_p); 314*38fd1498Szrj extern const char * ix86_output_indirect_function_return (rtx ret_op); 315*38fd1498Szrj extern void ix86_split_simple_return_pop_internal (rtx); 316*38fd1498Szrj extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load, 317*38fd1498Szrj machine_mode mode); 318*38fd1498Szrj extern int ix86_min_insn_size (rtx_insn *); 319*38fd1498Szrj 320*38fd1498Szrj extern int ix86_issue_rate (void); 321*38fd1498Szrj extern int ix86_adjust_cost (rtx_insn *insn, int dep_type, rtx_insn *dep_insn, 322*38fd1498Szrj int cost, unsigned int); 323*38fd1498Szrj extern int ia32_multipass_dfa_lookahead (void); 324*38fd1498Szrj extern bool ix86_macro_fusion_p (void); 325*38fd1498Szrj extern bool ix86_macro_fusion_pair_p (rtx_insn *condgen, rtx_insn *condjmp); 326*38fd1498Szrj 327*38fd1498Szrj extern bool ix86_bd_has_dispatch (rtx_insn *insn, int action); 328*38fd1498Szrj extern void ix86_bd_do_dispatch (rtx_insn *insn, int mode); 329*38fd1498Szrj 330*38fd1498Szrj extern void ix86_core2i7_init_hooks (void); 331*38fd1498Szrj 332*38fd1498Szrj extern int ix86_atom_sched_reorder (FILE *, int, rtx_insn **, int *, int); 333*38fd1498Szrj 334*38fd1498Szrj extern poly_int64 ix86_push_rounding (poly_int64); 335*38fd1498Szrj 336*38fd1498Szrj #ifdef RTX_CODE 337*38fd1498Szrj /* Target data for multipass lookahead scheduling. 338*38fd1498Szrj Currently used for Core 2/i7 tuning. */ 339*38fd1498Szrj struct ix86_first_cycle_multipass_data_ 340*38fd1498Szrj { 341*38fd1498Szrj /* The length (in bytes) of ifetch block in this solution. */ 342*38fd1498Szrj int ifetch_block_len; 343*38fd1498Szrj /* Number of instructions in ifetch block in this solution. */ 344*38fd1498Szrj int ifetch_block_n_insns; 345*38fd1498Szrj /* Bitmap to remember changes to ready_try for backtracking. */ 346*38fd1498Szrj sbitmap ready_try_change; 347*38fd1498Szrj /* Size of the bitmap. */ 348*38fd1498Szrj int ready_try_change_size; 349*38fd1498Szrj }; 350*38fd1498Szrj # define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DATA_T \ 351*38fd1498Szrj struct ix86_first_cycle_multipass_data_ 352*38fd1498Szrj #endif /* RTX_CODE */ 353*38fd1498Szrj 354*38fd1498Szrj const addr_space_t ADDR_SPACE_SEG_FS = 1; 355*38fd1498Szrj const addr_space_t ADDR_SPACE_SEG_GS = 2; 356*38fd1498Szrj 357*38fd1498Szrj namespace gcc { class context; } 358*38fd1498Szrj class rtl_opt_pass; 359*38fd1498Szrj 360*38fd1498Szrj extern rtl_opt_pass *make_pass_insert_vzeroupper (gcc::context *); 361*38fd1498Szrj extern rtl_opt_pass *make_pass_stv (gcc::context *); 362*38fd1498Szrj extern rtl_opt_pass *make_pass_insert_endbranch (gcc::context *); 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