gcc/config/i386/i386-protos.h

   1 /* Definitions of target machine for GCC for IA-32.
   2    Copyright (C) 1988-2017 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 any later version.
  10
  11 GCC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 /* In i386-common.c.  */
  21 extern 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 */
  27 extern bool ix86_target_stack_probe (void);
  28 extern bool ix86_can_use_return_insn_p (void);
  29 extern void ix86_setup_frame_addresses (void);
  30 extern bool ix86_rip_relative_addr_p (struct ix86_address *parts);
  31
  32 extern HOST_WIDE_INT ix86_initial_elimination_offset (int, int);
  33 extern void ix86_expand_prologue (void);
  34 extern void ix86_maybe_emit_epilogue_vzeroupper (void);
  35 extern void ix86_expand_epilogue (int);
  36 extern void ix86_expand_split_stack_prologue (void);
  37
  38 extern void ix86_output_addr_vec_elt (FILE *, int);
  39 extern void ix86_output_addr_diff_elt (FILE *, int, int);
  40
  41 extern enum calling_abi ix86_cfun_abi (void);
  42 extern enum calling_abi ix86_function_type_abi (const_tree);
  43
  44 extern bool ix86_use_pseudo_pic_reg (void);
  45
  46 extern void ix86_reset_previous_fndecl (void);
  47
  48 extern bool ix86_using_red_zone (void);
  49
  50 #ifdef RTX_CODE
  51 extern int standard_80387_constant_p (rtx);
  52 extern const char *standard_80387_constant_opcode (rtx);
  53 extern rtx standard_80387_constant_rtx (int);
  54 extern int standard_sse_constant_p (rtx, machine_mode);
  55 extern const char *standard_sse_constant_opcode (rtx_insn *, rtx);
  56 extern bool ix86_standard_x87sse_constant_load_p (const rtx_insn *, rtx);
  57 extern bool symbolic_reference_mentioned_p (rtx);
  58 extern bool extended_reg_mentioned_p (rtx);
  59 extern bool x86_extended_QIreg_mentioned_p (rtx_insn *);
  60 extern bool x86_extended_reg_mentioned_p (rtx);
  61 extern bool x86_maybe_negate_const_int (rtx *, machine_mode);
  62 extern machine_mode ix86_cc_mode (enum rtx_code, rtx, rtx);
  63
  64 extern int avx_vpermilp_parallel (rtx par, machine_mode mode);
  65 extern int avx_vperm2f128_parallel (rtx par, machine_mode mode);
  66
  67 extern bool ix86_expand_strlen (rtx, rtx, rtx, rtx);
  68 extern bool ix86_expand_set_or_movmem (rtx, rtx, rtx, rtx, rtx, rtx,
  69                                        rtx, rtx, rtx, rtx, bool);
  70
  71 extern bool constant_address_p (rtx);
  72 extern bool legitimate_pic_operand_p (rtx);
  73 extern bool legitimate_pic_address_disp_p (rtx);
  74 extern bool ix86_force_load_from_GOT_p (rtx);
  75 extern void print_reg (rtx, int, FILE*);
  76 extern void ix86_print_operand (FILE *, rtx, int);
  77
  78 extern void split_double_mode (machine_mode, rtx[], int, rtx[], rtx[]);
  79
  80 extern const char *output_set_got (rtx, rtx);
  81 extern const char *output_387_binary_op (rtx_insn *, rtx*);
  82 extern const char *output_387_reg_move (rtx_insn *, rtx*);
  83 extern const char *output_fix_trunc (rtx_insn *, rtx*, bool);
  84 extern const char *output_fp_compare (rtx_insn *, rtx*, bool, bool);
  85 extern const char *output_adjust_stack_and_probe (rtx);
  86 extern const char *output_probe_stack_range (rtx, rtx);
  87
  88 extern void ix86_expand_clear (rtx);
  89 extern void ix86_expand_move (machine_mode, rtx[]);
  90 extern void ix86_expand_vector_move (machine_mode, rtx[]);
  91 extern void ix86_expand_vector_move_misalign (machine_mode, rtx[]);
  92 extern rtx ix86_fixup_binary_operands (enum rtx_code,
  93                                        machine_mode, rtx[]);
  94 extern void ix86_fixup_binary_operands_no_copy (enum rtx_code,
  95                                                 machine_mode, rtx[]);
  96 extern void ix86_expand_binary_operator (enum rtx_code,
  97                                          machine_mode, rtx[]);
  98 extern void ix86_expand_vector_logical_operator (enum rtx_code,
  99                                                  machine_mode, rtx[]);
 100 extern bool ix86_binary_operator_ok (enum rtx_code, machine_mode, rtx[]);
 101 extern bool ix86_avoid_lea_for_add (rtx_insn *, rtx[]);
 102 extern bool ix86_use_lea_for_mov (rtx_insn *, rtx[]);
 103 extern bool ix86_avoid_lea_for_addr (rtx_insn *, rtx[]);
 104 extern void ix86_split_lea_for_addr (rtx_insn *, rtx[], machine_mode);
 105 extern bool ix86_lea_for_add_ok (rtx_insn *, rtx[]);
 106 extern bool ix86_vec_interleave_v2df_operator_ok (rtx operands[3], bool high);
 107 extern bool ix86_dep_by_shift_count (const_rtx set_insn, const_rtx use_insn);
 108 extern bool ix86_agi_dependent (rtx_insn *set_insn, rtx_insn *use_insn);
 109 extern void ix86_expand_unary_operator (enum rtx_code, machine_mode,
 110                                         rtx[]);
 111 extern rtx ix86_build_const_vector (machine_mode, bool, rtx);
 112 extern rtx ix86_build_signbit_mask (machine_mode, bool, bool);
 113 extern void ix86_split_convert_uns_si_sse (rtx[]);
 114 extern void ix86_expand_convert_uns_didf_sse (rtx, rtx);
 115 extern void ix86_expand_convert_uns_sixf_sse (rtx, rtx);
 116 extern void ix86_expand_convert_uns_sidf_sse (rtx, rtx);
 117 extern void ix86_expand_convert_uns_sisf_sse (rtx, rtx);
 118 extern void ix86_expand_convert_sign_didf_sse (rtx, rtx);
 119 extern void ix86_expand_vector_convert_uns_vsivsf (rtx, rtx);
 120 extern rtx ix86_expand_adjust_ufix_to_sfix_si (rtx, rtx *);
 121 extern enum ix86_fpcmp_strategy ix86_fp_comparison_strategy (enum rtx_code);
 122 extern void ix86_expand_fp_absneg_operator (enum rtx_code, machine_mode,
 123                                             rtx[]);
 124 extern void ix86_expand_copysign (rtx []);
 125 extern void ix86_split_copysign_const (rtx []);
 126 extern void ix86_split_copysign_var (rtx []);
 127 extern bool ix86_unary_operator_ok (enum rtx_code, machine_mode, rtx[]);
 128 extern bool ix86_match_ccmode (rtx, machine_mode);
 129 extern void ix86_expand_branch (enum rtx_code, rtx, rtx, rtx);
 130 extern void ix86_expand_setcc (rtx, enum rtx_code, rtx, rtx);
 131 extern bool ix86_expand_int_movcc (rtx[]);
 132 extern bool ix86_expand_fp_movcc (rtx[]);
 133 extern bool ix86_expand_fp_vcond (rtx[]);
 134 extern bool ix86_expand_int_vcond (rtx[]);
 135 extern void ix86_expand_vec_perm (rtx[]);
 136 extern bool ix86_expand_vec_perm_const (rtx[]);
 137 extern bool ix86_expand_mask_vec_cmp (rtx[]);
 138 extern bool ix86_expand_int_vec_cmp (rtx[]);
 139 extern bool ix86_expand_fp_vec_cmp (rtx[]);
 140 extern void ix86_expand_sse_movcc (rtx, rtx, rtx, rtx);
 141 extern void ix86_expand_sse_unpack (rtx, rtx, bool, bool);
 142 extern bool ix86_expand_int_addcc (rtx[]);
 143 extern rtx ix86_expand_call (rtx, rtx, rtx, rtx, rtx, bool);
 144 extern void ix86_split_call_vzeroupper (rtx, rtx);
 145 extern void x86_initialize_trampoline (rtx, rtx, rtx);
 146 extern rtx ix86_zero_extend_to_Pmode (rtx);
 147 extern void ix86_split_long_move (rtx[]);
 148 extern void ix86_split_ashl (rtx *, rtx, machine_mode);
 149 extern void ix86_split_ashr (rtx *, rtx, machine_mode);
 150 extern void ix86_split_lshr (rtx *, rtx, machine_mode);
 151 extern rtx ix86_find_base_term (rtx);
 152 extern bool ix86_check_movabs (rtx, int);
 153 extern bool ix86_check_no_addr_space (rtx);
 154 extern void ix86_split_idivmod (machine_mode, rtx[], bool);
 155
 156 extern rtx assign_386_stack_local (machine_mode, enum ix86_stack_slot);
 157 extern int ix86_attr_length_immediate_default (rtx_insn *, bool);
 158 extern int ix86_attr_length_address_default (rtx_insn *);
 159 extern int ix86_attr_length_vex_default (rtx_insn *, bool, bool);
 160
 161 extern machine_mode ix86_fp_compare_mode (enum rtx_code);
 162
 163 extern rtx ix86_libcall_value (machine_mode);
 164 extern bool ix86_function_arg_regno_p (int);
 165 extern void ix86_asm_output_function_label (FILE *, const char *, tree);
 166 extern void ix86_call_abi_override (const_tree);
 167 extern int ix86_reg_parm_stack_space (const_tree);
 168
 169 extern bool ix86_libc_has_function (enum function_class fn_class);
 170
 171 extern void x86_order_regs_for_local_alloc (void);
 172 extern void x86_function_profiler (FILE *, int);
 173 extern void x86_emit_floatuns (rtx [2]);
 174 extern void ix86_emit_fp_unordered_jump (rtx);
 175
 176 extern void ix86_emit_i387_log1p (rtx, rtx);
 177 extern void ix86_emit_i387_round (rtx, rtx);
 178 extern void ix86_emit_swdivsf (rtx, rtx, rtx, machine_mode);
 179 extern void ix86_emit_swsqrtsf (rtx, rtx, machine_mode, bool);
 180
 181 extern enum rtx_code ix86_reverse_condition (enum rtx_code, machine_mode);
 182
 183 extern void ix86_expand_lround (rtx, rtx);
 184 extern void ix86_expand_lfloorceil (rtx, rtx, bool);
 185 extern void ix86_expand_rint (rtx, rtx);
 186 extern void ix86_expand_floorceil (rtx, rtx, bool);
 187 extern void ix86_expand_floorceildf_32 (rtx, rtx, bool);
 188 extern void ix86_expand_round_sse4 (rtx, rtx);
 189 extern void ix86_expand_round (rtx, rtx);
 190 extern void ix86_expand_rounddf_32 (rtx, rtx);
 191 extern void ix86_expand_trunc (rtx, rtx);
 192 extern void ix86_expand_truncdf_32 (rtx, rtx);
 193
 194 extern void ix86_expand_vecop_qihi (enum rtx_code, rtx, rtx, rtx);
 195
 196 extern rtx ix86_split_stack_guard (void);
 197
 198 #ifdef TREE_CODE
 199 extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree, int);
 200 #endif  /* TREE_CODE  */
 201
 202 #endif  /* RTX_CODE  */
 203
 204 #ifdef TREE_CODE
 205 extern int ix86_data_alignment (tree, int, bool);
 206 extern unsigned int ix86_local_alignment (tree, machine_mode,
 207                                           unsigned int);
 208 extern unsigned int ix86_minimum_alignment (tree, machine_mode,
 209                                             unsigned int);
 210 extern tree ix86_handle_shared_attribute (tree *, tree, tree, int, bool *);
 211 extern tree ix86_handle_selectany_attribute (tree *, tree, tree, int, bool *);
 212 extern int x86_field_alignment (tree, int);
 213 extern tree ix86_valid_target_attribute_tree (tree,
 214                                               struct gcc_options *,
 215                                               struct gcc_options *);
 216 extern unsigned int ix86_get_callcvt (const_tree);
 217
 218 #endif
 219
 220 extern rtx ix86_tls_module_base (void);
 221 extern bool ix86_tls_address_pattern_p (rtx);
 222 extern rtx ix86_rewrite_tls_address (rtx);
 223
 224 extern void ix86_expand_vector_init (bool, rtx, rtx);
 225 extern void ix86_expand_vector_set (bool, rtx, rtx, int);
 226 extern void ix86_expand_vector_extract (bool, rtx, rtx, int);
 227 extern void ix86_expand_reduc (rtx (*)(rtx, rtx, rtx), rtx, rtx);
 228
 229 extern void ix86_expand_vec_extract_even_odd (rtx, rtx, rtx, unsigned);
 230 extern bool ix86_expand_pextr (rtx *);
 231 extern bool ix86_expand_pinsr (rtx *);
 232 extern void ix86_expand_mul_widen_evenodd (rtx, rtx, rtx, bool, bool);
 233 extern void ix86_expand_mul_widen_hilo (rtx, rtx, rtx, bool, bool);
 234 extern void ix86_expand_sse2_mulv4si3 (rtx, rtx, rtx);
 235 extern void ix86_expand_sse2_mulvxdi3 (rtx, rtx, rtx);
 236 extern void ix86_expand_sse2_abs (rtx, rtx);
 237
 238 extern bool ix86_bnd_prefixed_insn_p (rtx);
 239
 240 /* In i386-c.c  */
 241 extern void ix86_target_macros (void);
 242 extern void ix86_register_pragmas (void);
 243
 244 /* In winnt.c  */
 245 extern void i386_pe_unique_section (tree, int);
 246 extern void i386_pe_declare_function_type (FILE *, const char *, int);
 247 extern void i386_pe_record_external_function (tree, const char *);
 248 extern void i386_pe_maybe_record_exported_symbol (tree, const char *, int);
 249 extern void i386_pe_encode_section_info (tree, rtx, int);
 250 extern bool i386_pe_binds_local_p (const_tree);
 251 extern const char *i386_pe_strip_name_encoding_full (const char *);
 252 extern bool i386_pe_valid_dllimport_attribute_p (const_tree);
 253 extern unsigned int i386_pe_section_type_flags (tree, const char *, int);
 254 extern void i386_pe_asm_named_section (const char *, unsigned int, tree);
 255 extern void i386_pe_asm_output_aligned_decl_common (FILE *, tree,
 256                                                     const char *,
 257                                                     HOST_WIDE_INT,
 258                                                     HOST_WIDE_INT);
 259 extern void i386_pe_file_end (void);
 260 extern void i386_pe_start_function (FILE *, const char *, tree);
 261 extern void i386_pe_end_function (FILE *, const char *, tree);
 262 extern void i386_pe_assemble_visibility (tree, int);
 263 extern tree i386_pe_mangle_decl_assembler_name (tree, tree);
 264 extern tree i386_pe_mangle_assembler_name (const char *);
 265 extern void i386_pe_record_stub (const char *);
 266
 267 extern void i386_pe_seh_init (FILE *);
 268 extern void i386_pe_seh_end_prologue (FILE *);
 269 extern void i386_pe_seh_unwind_emit (FILE *, rtx_insn *);
 270 extern void i386_pe_seh_emit_except_personality (rtx);
 271 extern void i386_pe_seh_init_sections (void);
 272
 273 /* In winnt-cxx.c and winnt-stubs.c  */
 274 extern void i386_pe_adjust_class_at_definition (tree);
 275 extern bool i386_pe_type_dllimport_p (tree);
 276 extern bool i386_pe_type_dllexport_p (tree);
 277
 278 extern int i386_pe_reloc_rw_mask (void);
 279
 280 extern rtx maybe_get_pool_constant (rtx);
 281
 282 extern char internal_label_prefix[16];
 283 extern int internal_label_prefix_len;
 284
 285 extern bool ix86_epilogue_uses (int);
 286
 287 struct ix86_address
 288 {
 289   rtx base, index, disp;
 290   HOST_WIDE_INT scale;
 291   addr_space_t seg;
 292 };
 293
 294 extern int ix86_decompose_address (rtx, struct ix86_address *);
 295 extern int memory_address_length (rtx, bool);
 296 extern void x86_output_aligned_bss (FILE *, tree, const char *,
 297                                     unsigned HOST_WIDE_INT, int);
 298 extern void x86_elf_aligned_decl_common (FILE *, tree, const char *,
 299                                          unsigned HOST_WIDE_INT, int);
 300
 301 #ifdef RTX_CODE
 302 extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *,
 303                                       enum rtx_code *, enum rtx_code *);
 304 extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code);
 305 #endif
 306 extern int asm_preferred_eh_data_format (int, int);
 307
 308 #ifdef HAVE_ATTR_cpu
 309 extern enum attr_cpu ix86_schedule;
 310 #endif
 311
 312 extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op);
 313 extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load,
 314                                                 machine_mode mode);
 315 extern int ix86_min_insn_size (rtx_insn *);
 316
 317 extern int ix86_issue_rate (void);
 318 extern int ix86_adjust_cost (rtx_insn *insn, int dep_type, rtx_insn *dep_insn,
 319                              int cost, unsigned int);
 320 extern int ia32_multipass_dfa_lookahead (void);
 321 extern bool ix86_macro_fusion_p (void);
 322 extern bool ix86_macro_fusion_pair_p (rtx_insn *condgen, rtx_insn *condjmp);
 323
 324 extern bool ix86_bd_has_dispatch (rtx_insn *insn, int action);
 325 extern void ix86_bd_do_dispatch (rtx_insn *insn, int mode);
 326
 327 extern void ix86_core2i7_init_hooks (void);
 328
 329 extern int ix86_atom_sched_reorder (FILE *, int, rtx_insn **, int *, int);
 330
 331 #ifdef RTX_CODE
 332 /* Target data for multipass lookahead scheduling.
 333    Currently used for Core 2/i7 tuning.  */
 334 struct ix86_first_cycle_multipass_data_
 335 {
 336   /* The length (in bytes) of ifetch block in this solution.  */
 337   int ifetch_block_len;
 338   /* Number of instructions in ifetch block in this solution.  */
 339   int ifetch_block_n_insns;
 340   /* Bitmap to remember changes to ready_try for backtracking.  */
 341   sbitmap ready_try_change;
 342   /* Size of the bitmap.  */
 343   int ready_try_change_size;
 344 };
 345 # define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DATA_T      \
 346   struct ix86_first_cycle_multipass_data_
 347 #endif /* RTX_CODE */
 348
 349 const addr_space_t ADDR_SPACE_SEG_FS = 1;
 350 const addr_space_t ADDR_SPACE_SEG_GS = 2;
 351
 352 namespace gcc { class context; }
 353 class rtl_opt_pass;
 354
 355 extern rtl_opt_pass *make_pass_insert_vzeroupper (gcc::context *);
 356 extern rtl_opt_pass *make_pass_stv (gcc::context *);