1/* Definitions of target machine for GCC for IA-32. 2 Copyright (C) 1988-2015 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify 7it under the terms of the GNU General Public License as published by 8the Free Software Foundation; either version 3, or (at your option) 9any later version. 10 11GCC is distributed in the hope that it will be useful, 12but WITHOUT ANY WARRANTY; without even the implied warranty of 13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14GNU General Public License for more details. 15 16You should have received a copy of the GNU General Public License 17along with GCC; see the file COPYING3. If not see 18<http://www.gnu.org/licenses/>. */ 19 20/* In i386-common.c. */ 21extern bool ix86_handle_option (struct gcc_options *opts, 22 struct gcc_options *opts_set ATTRIBUTE_UNUSED, 23 const struct cl_decoded_option *decoded, 24 location_t loc); 25 26/* Functions in i386.c */ 27extern bool ix86_target_stack_probe (void); 28extern bool ix86_can_use_return_insn_p (void); 29extern void ix86_setup_frame_addresses (void); 30 31extern HOST_WIDE_INT ix86_initial_elimination_offset (int, int); 32extern void ix86_expand_prologue (void); 33extern void ix86_maybe_emit_epilogue_vzeroupper (void); 34extern void ix86_expand_epilogue (int); 35extern void ix86_expand_split_stack_prologue (void); 36 37extern void ix86_output_addr_vec_elt (FILE *, int); 38extern void ix86_output_addr_diff_elt (FILE *, int, int); 39 40extern enum calling_abi ix86_cfun_abi (void); 41extern enum calling_abi ix86_function_type_abi (const_tree); 42 43extern bool ix86_use_pseudo_pic_reg (void); 44 45extern void ix86_reset_previous_fndecl (void); 46 47#ifdef RTX_CODE 48extern int standard_80387_constant_p (rtx); 49extern const char *standard_80387_constant_opcode (rtx); 50extern rtx standard_80387_constant_rtx (int); 51extern int standard_sse_constant_p (rtx); 52extern const char *standard_sse_constant_opcode (rtx_insn *, rtx); 53extern bool symbolic_reference_mentioned_p (rtx); 54extern bool extended_reg_mentioned_p (rtx); 55extern bool x86_extended_QIreg_mentioned_p (rtx_insn *); 56extern bool x86_extended_reg_mentioned_p (rtx); 57extern bool x86_maybe_negate_const_int (rtx *, machine_mode); 58extern machine_mode ix86_cc_mode (enum rtx_code, rtx, rtx); 59 60extern int avx_vpermilp_parallel (rtx par, machine_mode mode); 61extern int avx_vperm2f128_parallel (rtx par, machine_mode mode); 62 63extern bool ix86_expand_strlen (rtx, rtx, rtx, rtx); 64extern bool ix86_expand_set_or_movmem (rtx, rtx, rtx, rtx, rtx, rtx, 65 rtx, rtx, rtx, rtx, bool); 66 67extern bool constant_address_p (rtx); 68extern bool legitimate_pic_operand_p (rtx); 69extern bool legitimate_pic_address_disp_p (rtx); 70extern bool ix86_legitimize_reload_address (rtx, machine_mode, 71 int, int, int); 72extern void print_reg (rtx, int, FILE*); 73extern void ix86_print_operand (FILE *, rtx, int); 74 75extern void split_double_mode (machine_mode, rtx[], int, rtx[], rtx[]); 76 77extern const char *output_set_got (rtx, rtx); 78extern const char *output_387_binary_op (rtx, rtx*); 79extern const char *output_387_reg_move (rtx, rtx*); 80extern const char *output_fix_trunc (rtx_insn *, rtx*, bool); 81extern const char *output_fp_compare (rtx, rtx*, bool, bool); 82extern const char *output_adjust_stack_and_probe (rtx); 83extern const char *output_probe_stack_range (rtx, rtx); 84 85extern void ix86_expand_clear (rtx); 86extern void ix86_expand_move (machine_mode, rtx[]); 87extern void ix86_expand_vector_move (machine_mode, rtx[]); 88extern void ix86_expand_vector_move_misalign (machine_mode, rtx[]); 89extern rtx ix86_fixup_binary_operands (enum rtx_code, 90 machine_mode, rtx[]); 91extern void ix86_fixup_binary_operands_no_copy (enum rtx_code, 92 machine_mode, rtx[]); 93extern void ix86_expand_binary_operator (enum rtx_code, 94 machine_mode, rtx[]); 95extern void ix86_expand_vector_logical_operator (enum rtx_code, 96 machine_mode, rtx[]); 97extern bool ix86_binary_operator_ok (enum rtx_code, machine_mode, rtx[]); 98extern bool ix86_avoid_lea_for_add (rtx_insn *, rtx[]); 99extern bool ix86_use_lea_for_mov (rtx_insn *, rtx[]); 100extern bool ix86_avoid_lea_for_addr (rtx_insn *, rtx[]); 101extern void ix86_split_lea_for_addr (rtx_insn *, rtx[], machine_mode); 102extern bool ix86_lea_for_add_ok (rtx_insn *, rtx[]); 103extern bool ix86_vec_interleave_v2df_operator_ok (rtx operands[3], bool high); 104extern bool ix86_dep_by_shift_count (const_rtx set_insn, const_rtx use_insn); 105extern bool ix86_agi_dependent (rtx_insn *set_insn, rtx_insn *use_insn); 106extern void ix86_expand_unary_operator (enum rtx_code, machine_mode, 107 rtx[]); 108extern rtx ix86_build_const_vector (machine_mode, bool, rtx); 109extern rtx ix86_build_signbit_mask (machine_mode, bool, bool); 110extern void ix86_split_convert_uns_si_sse (rtx[]); 111extern void ix86_expand_convert_uns_didf_sse (rtx, rtx); 112extern void ix86_expand_convert_uns_sixf_sse (rtx, rtx); 113extern void ix86_expand_convert_uns_sidf_sse (rtx, rtx); 114extern void ix86_expand_convert_uns_sisf_sse (rtx, rtx); 115extern void ix86_expand_convert_sign_didf_sse (rtx, rtx); 116extern void ix86_expand_vector_convert_uns_vsivsf (rtx, rtx); 117extern rtx ix86_expand_adjust_ufix_to_sfix_si (rtx, rtx *); 118extern enum ix86_fpcmp_strategy ix86_fp_comparison_strategy (enum rtx_code); 119extern void ix86_expand_fp_absneg_operator (enum rtx_code, machine_mode, 120 rtx[]); 121extern void ix86_expand_copysign (rtx []); 122extern void ix86_split_copysign_const (rtx []); 123extern void ix86_split_copysign_var (rtx []); 124extern bool ix86_unary_operator_ok (enum rtx_code, machine_mode, rtx[]); 125extern bool ix86_match_ccmode (rtx, machine_mode); 126extern void ix86_expand_branch (enum rtx_code, rtx, rtx, rtx); 127extern void ix86_expand_setcc (rtx, enum rtx_code, rtx, rtx); 128extern bool ix86_expand_int_movcc (rtx[]); 129extern bool ix86_expand_fp_movcc (rtx[]); 130extern bool ix86_expand_fp_vcond (rtx[]); 131extern bool ix86_expand_int_vcond (rtx[]); 132extern void ix86_expand_vec_perm (rtx[]); 133extern bool ix86_expand_vec_perm_const (rtx[]); 134extern void ix86_expand_sse_unpack (rtx, rtx, bool, bool); 135extern bool ix86_expand_int_addcc (rtx[]); 136extern rtx ix86_expand_call (rtx, rtx, rtx, rtx, rtx, bool); 137extern void ix86_split_call_vzeroupper (rtx, rtx); 138extern void x86_initialize_trampoline (rtx, rtx, rtx); 139extern rtx ix86_zero_extend_to_Pmode (rtx); 140extern void ix86_split_long_move (rtx[]); 141extern void ix86_split_ashl (rtx *, rtx, machine_mode); 142extern void ix86_split_ashr (rtx *, rtx, machine_mode); 143extern void ix86_split_lshr (rtx *, rtx, machine_mode); 144extern rtx ix86_find_base_term (rtx); 145extern bool ix86_check_movabs (rtx, int); 146extern void ix86_split_idivmod (machine_mode, rtx[], bool); 147 148extern rtx assign_386_stack_local (machine_mode, enum ix86_stack_slot); 149extern int ix86_attr_length_immediate_default (rtx_insn *, bool); 150extern int ix86_attr_length_address_default (rtx_insn *); 151extern int ix86_attr_length_vex_default (rtx_insn *, bool, bool); 152 153extern machine_mode ix86_fp_compare_mode (enum rtx_code); 154 155extern rtx ix86_libcall_value (machine_mode); 156extern bool ix86_function_arg_regno_p (int); 157extern void ix86_asm_output_function_label (FILE *, const char *, tree); 158extern void ix86_call_abi_override (const_tree); 159extern int ix86_reg_parm_stack_space (const_tree); 160 161extern void ix86_split_fp_branch (enum rtx_code code, rtx, rtx, 162 rtx, rtx, rtx); 163extern bool ix86_hard_regno_mode_ok (int, machine_mode); 164extern bool ix86_modes_tieable_p (machine_mode, machine_mode); 165extern bool ix86_secondary_memory_needed (enum reg_class, enum reg_class, 166 machine_mode, int); 167extern bool ix86_cannot_change_mode_class (machine_mode, 168 machine_mode, enum reg_class); 169 170extern bool ix86_libc_has_function (enum function_class fn_class); 171 172extern void x86_order_regs_for_local_alloc (void); 173extern void x86_function_profiler (FILE *, int); 174extern void x86_emit_floatuns (rtx [2]); 175extern void ix86_emit_fp_unordered_jump (rtx); 176 177extern void ix86_emit_i387_log1p (rtx, rtx); 178extern void ix86_emit_i387_round (rtx, rtx); 179extern void ix86_emit_swdivsf (rtx, rtx, rtx, machine_mode); 180extern void ix86_emit_swsqrtsf (rtx, rtx, machine_mode, bool); 181 182extern enum rtx_code ix86_reverse_condition (enum rtx_code, machine_mode); 183 184extern void ix86_expand_lround (rtx, rtx); 185extern void ix86_expand_lfloorceil (rtx, rtx, bool); 186extern void ix86_expand_rint (rtx, rtx); 187extern void ix86_expand_floorceil (rtx, rtx, bool); 188extern void ix86_expand_floorceildf_32 (rtx, rtx, bool); 189extern void ix86_expand_round_sse4 (rtx, rtx); 190extern void ix86_expand_round (rtx, rtx); 191extern void ix86_expand_rounddf_32 (rtx, rtx); 192extern void ix86_expand_trunc (rtx, rtx); 193extern void ix86_expand_truncdf_32 (rtx, rtx); 194 195extern void ix86_expand_vecop_qihi (enum rtx_code, rtx, rtx, rtx); 196 197#ifdef TREE_CODE 198extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree, int); 199#endif /* TREE_CODE */ 200 201#endif /* RTX_CODE */ 202 203#ifdef TREE_CODE 204extern int ix86_data_alignment (tree, int, bool); 205extern unsigned int ix86_local_alignment (tree, machine_mode, 206 unsigned int); 207extern unsigned int ix86_minimum_alignment (tree, machine_mode, 208 unsigned int); 209extern int ix86_constant_alignment (tree, int); 210extern tree ix86_handle_shared_attribute (tree *, tree, tree, int, bool *); 211extern tree ix86_handle_selectany_attribute (tree *, tree, tree, int, bool *); 212extern int x86_field_alignment (tree, int); 213extern tree ix86_valid_target_attribute_tree (tree, 214 struct gcc_options *, 215 struct gcc_options *); 216extern unsigned int ix86_get_callcvt (const_tree); 217 218#endif 219 220extern rtx ix86_tls_module_base (void); 221 222extern void ix86_expand_vector_init (bool, rtx, rtx); 223extern void ix86_expand_vector_set (bool, rtx, rtx, int); 224extern void ix86_expand_vector_extract (bool, rtx, rtx, int); 225extern void ix86_expand_reduc (rtx (*)(rtx, rtx, rtx), rtx, rtx); 226 227extern void ix86_expand_vec_extract_even_odd (rtx, rtx, rtx, unsigned); 228extern bool ix86_expand_pinsr (rtx *); 229extern void ix86_expand_mul_widen_evenodd (rtx, rtx, rtx, bool, bool); 230extern void ix86_expand_mul_widen_hilo (rtx, rtx, rtx, bool, bool); 231extern void ix86_expand_sse2_mulv4si3 (rtx, rtx, rtx); 232extern void ix86_expand_sse2_mulvxdi3 (rtx, rtx, rtx); 233extern void ix86_expand_sse2_abs (rtx, rtx); 234 235extern bool ix86_bnd_prefixed_insn_p (rtx); 236 237/* In i386-c.c */ 238extern void ix86_target_macros (void); 239extern void ix86_register_pragmas (void); 240 241/* In winnt.c */ 242extern void i386_pe_unique_section (tree, int); 243extern void i386_pe_declare_function_type (FILE *, const char *, int); 244extern void i386_pe_record_external_function (tree, const char *); 245extern void i386_pe_maybe_record_exported_symbol (tree, const char *, int); 246extern void i386_pe_encode_section_info (tree, rtx, int); 247extern bool i386_pe_binds_local_p (const_tree); 248extern const char *i386_pe_strip_name_encoding_full (const char *); 249extern bool i386_pe_valid_dllimport_attribute_p (const_tree); 250extern unsigned int i386_pe_section_type_flags (tree, const char *, int); 251extern void i386_pe_asm_named_section (const char *, unsigned int, tree); 252extern void i386_pe_asm_output_aligned_decl_common (FILE *, tree, 253 const char *, 254 HOST_WIDE_INT, 255 HOST_WIDE_INT); 256extern void i386_pe_file_end (void); 257extern void i386_pe_start_function (FILE *, const char *, tree); 258extern void i386_pe_end_function (FILE *, const char *, tree); 259extern void i386_pe_assemble_visibility (tree, int); 260extern tree i386_pe_mangle_decl_assembler_name (tree, tree); 261extern tree i386_pe_mangle_assembler_name (const char *); 262extern void i386_pe_record_stub (const char *); 263 264extern void i386_pe_seh_init (FILE *); 265extern void i386_pe_seh_end_prologue (FILE *); 266extern void i386_pe_seh_unwind_emit (FILE *, rtx_insn *); 267extern void i386_pe_seh_emit_except_personality (rtx); 268extern void i386_pe_seh_init_sections (void); 269 270/* In winnt-cxx.c and winnt-stubs.c */ 271extern void i386_pe_adjust_class_at_definition (tree); 272extern bool i386_pe_type_dllimport_p (tree); 273extern bool i386_pe_type_dllexport_p (tree); 274 275extern int i386_pe_reloc_rw_mask (void); 276 277extern rtx maybe_get_pool_constant (rtx); 278 279extern char internal_label_prefix[16]; 280extern int internal_label_prefix_len; 281 282enum ix86_address_seg { SEG_DEFAULT, SEG_FS, SEG_GS }; 283struct ix86_address 284{ 285 rtx base, index, disp; 286 HOST_WIDE_INT scale; 287 enum ix86_address_seg seg; 288}; 289 290extern int ix86_decompose_address (rtx, struct ix86_address *); 291extern int memory_address_length (rtx, bool); 292extern void x86_output_aligned_bss (FILE *, tree, const char *, 293 unsigned HOST_WIDE_INT, int); 294extern void x86_elf_aligned_common (FILE *, const char *, 295 unsigned HOST_WIDE_INT, int); 296 297#ifdef RTX_CODE 298extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *, 299 enum rtx_code *, enum rtx_code *); 300extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code); 301#endif 302extern int asm_preferred_eh_data_format (int, int); 303 304#ifdef HAVE_ATTR_cpu 305extern enum attr_cpu ix86_schedule; 306#endif 307 308extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op); 309 310#ifdef RTX_CODE 311/* Target data for multipass lookahead scheduling. 312 Currently used for Core 2/i7 tuning. */ 313struct ix86_first_cycle_multipass_data_ 314{ 315 /* The length (in bytes) of ifetch block in this solution. */ 316 int ifetch_block_len; 317 /* Number of instructions in ifetch block in this solution. */ 318 int ifetch_block_n_insns; 319 /* Bitmap to remember changes to ready_try for backtracking. */ 320 sbitmap ready_try_change; 321 /* Size of the bitmap. */ 322 int ready_try_change_size; 323}; 324# define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DATA_T \ 325 struct ix86_first_cycle_multipass_data_ 326#endif /* RTX_CODE */ 327