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7d9ae20a 1/* Definitions of target machine for GCC for IA-32.
fbd26352 2 Copyright (C) 1988-2019 Free Software Foundation, Inc.
7953c610 3
7d9ae20a 4This file is part of GCC.
7953c610 5
7d9ae20a 6GCC is free software; you can redistribute it and/or modify
7953c610 7it under the terms of the GNU General Public License as published by
038d1e19 8the Free Software Foundation; either version 3, or (at your option)
7953c610 9any later version.
10
7d9ae20a 11GCC is distributed in the hope that it will be useful,
7953c610 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
038d1e19 17along with GCC; see the file COPYING3. If not see
18<http://www.gnu.org/licenses/>. */
7953c610 19
218e3e4e 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
7953c610 26/* Functions in i386.c */
7505c173 27extern bool ix86_target_stack_probe (void);
9ad50766 28extern bool ix86_can_use_return_insn_p (void);
4a29bad1 29extern void ix86_setup_frame_addresses (void);
79959e63 30extern bool ix86_rip_relative_addr_p (struct ix86_address *parts);
7953c610 31
4a29bad1 32extern HOST_WIDE_INT ix86_initial_elimination_offset (int, int);
33extern void ix86_expand_prologue (void);
74460d8c 34extern void ix86_maybe_emit_epilogue_vzeroupper (void);
4a29bad1 35extern void ix86_expand_epilogue (int);
48b14f50 36extern void ix86_expand_split_stack_prologue (void);
7953c610 37
4a29bad1 38extern void ix86_output_addr_vec_elt (FILE *, int);
39extern void ix86_output_addr_diff_elt (FILE *, int, int);
bb006a84 40
218a4f88 41extern enum calling_abi ix86_cfun_abi (void);
42extern enum calling_abi ix86_function_type_abi (const_tree);
43
0554566a 44extern bool ix86_use_pseudo_pic_reg (void);
45
ef21d40e 46extern void ix86_reset_previous_fndecl (void);
47
64c1df32 48extern bool ix86_using_red_zone (void);
49
7953c610 50#ifdef RTX_CODE
4a29bad1 51extern int standard_80387_constant_p (rtx);
52extern const char *standard_80387_constant_opcode (rtx);
53extern rtx standard_80387_constant_rtx (int);
d89423c1 54extern int standard_sse_constant_p (rtx, machine_mode);
537a9f02 55extern const char *standard_sse_constant_opcode (rtx_insn *, rtx *);
6af52c84 56extern bool ix86_standard_x87sse_constant_load_p (const rtx_insn *, rtx);
9ad50766 57extern bool symbolic_reference_mentioned_p (rtx);
4a29bad1 58extern bool extended_reg_mentioned_p (rtx);
ed3e6e5d 59extern bool x86_extended_QIreg_mentioned_p (rtx_insn *);
4a29bad1 60extern bool x86_extended_reg_mentioned_p (rtx);
3754d046 61extern bool x86_maybe_negate_const_int (rtx *, machine_mode);
62extern machine_mode ix86_cc_mode (enum rtx_code, rtx, rtx);
4a29bad1 63
3754d046 64extern int avx_vpermilp_parallel (rtx par, machine_mode mode);
65extern int avx_vperm2f128_parallel (rtx par, machine_mode mode);
af6d2927 66
9ad50766 67extern bool ix86_expand_strlen (rtx, rtx, rtx, rtx);
36d63243 68extern bool ix86_expand_set_or_movmem (rtx, rtx, rtx, rtx, rtx, rtx,
9db0f34d 69 rtx, rtx, rtx, rtx, bool);
4a29bad1 70
4a29bad1 71extern bool constant_address_p (rtx);
72extern bool legitimate_pic_operand_p (rtx);
9ad50766 73extern bool legitimate_pic_address_disp_p (rtx);
0941fba8 74extern bool ix86_force_load_from_GOT_p (rtx);
4a29bad1 75extern void print_reg (rtx, int, FILE*);
99b6f860 76extern void ix86_print_operand (FILE *, rtx, int);
4a29bad1 77
3754d046 78extern void split_double_mode (machine_mode, rtx[], int, rtx[], rtx[]);
4a29bad1 79
3e111a71 80extern const char *output_set_got (rtx, rtx);
26cd1198 81extern const char *output_387_binary_op (rtx_insn *, rtx*);
82extern const char *output_387_reg_move (rtx_insn *, rtx*);
d3ffa7b4 83extern const char *output_fix_trunc (rtx_insn *, rtx*, bool);
26cd1198 84extern const char *output_fp_compare (rtx_insn *, rtx*, bool, bool);
7505c173 85extern const char *output_adjust_stack_and_probe (rtx);
86extern const char *output_probe_stack_range (rtx, rtx);
4a29bad1 87
4a29bad1 88extern void ix86_expand_clear (rtx);
3754d046 89extern void ix86_expand_move (machine_mode, rtx[]);
90extern void ix86_expand_vector_move (machine_mode, rtx[]);
91extern void ix86_expand_vector_move_misalign (machine_mode, rtx[]);
5802c0cb 92extern rtx ix86_fixup_binary_operands (enum rtx_code,
3754d046 93 machine_mode, rtx[]);
5802c0cb 94extern void ix86_fixup_binary_operands_no_copy (enum rtx_code,
3754d046 95 machine_mode, rtx[]);
4a29bad1 96extern void ix86_expand_binary_operator (enum rtx_code,
3754d046 97 machine_mode, rtx[]);
3a623316 98extern void ix86_expand_vector_logical_operator (enum rtx_code,
3754d046 99 machine_mode, rtx[]);
100extern bool ix86_binary_operator_ok (enum rtx_code, machine_mode, rtx[]);
8c64807d 101extern bool ix86_avoid_lea_for_add (rtx_insn *, rtx[]);
102extern bool ix86_use_lea_for_mov (rtx_insn *, rtx[]);
103extern bool ix86_avoid_lea_for_addr (rtx_insn *, rtx[]);
3754d046 104extern void ix86_split_lea_for_addr (rtx_insn *, rtx[], machine_mode);
8c64807d 105extern bool ix86_lea_for_add_ok (rtx_insn *, rtx[]);
04e14b44 106extern bool ix86_vec_interleave_v2df_operator_ok (rtx operands[3], bool high);
6df553fd 107extern bool ix86_dep_by_shift_count (const_rtx set_insn, const_rtx use_insn);
ed3e6e5d 108extern bool ix86_agi_dependent (rtx_insn *set_insn, rtx_insn *use_insn);
3754d046 109extern void ix86_expand_unary_operator (enum rtx_code, machine_mode,
4a29bad1 110 rtx[]);
3754d046 111extern rtx ix86_build_const_vector (machine_mode, bool, rtx);
112extern rtx ix86_build_signbit_mask (machine_mode, bool, bool);
0760e423 113extern void ix86_split_convert_uns_si_sse (rtx[]);
751bdb92 114extern void ix86_expand_convert_uns_didf_sse (rtx, rtx);
89ba852b 115extern void ix86_expand_convert_uns_sixf_sse (rtx, rtx);
751bdb92 116extern void ix86_expand_convert_uns_sidf_sse (rtx, rtx);
117extern void ix86_expand_convert_uns_sisf_sse (rtx, rtx);
118extern void ix86_expand_convert_sign_didf_sse (rtx, rtx);
e39ec8de 119extern void ix86_expand_vector_convert_uns_vsivsf (rtx, rtx);
da38df18 120extern rtx ix86_expand_adjust_ufix_to_sfix_si (rtx, rtx *);
e6a0a4a3 121extern enum ix86_fpcmp_strategy ix86_fp_comparison_strategy (enum rtx_code);
3754d046 122extern void ix86_expand_fp_absneg_operator (enum rtx_code, machine_mode,
12977431 123 rtx[]);
837f49a9 124extern void ix86_expand_copysign (rtx []);
125extern void ix86_split_copysign_const (rtx []);
126extern void ix86_split_copysign_var (rtx []);
3754d046 127extern bool ix86_unary_operator_ok (enum rtx_code, machine_mode, rtx[]);
128extern bool ix86_match_ccmode (rtx, machine_mode);
6ceb0a4d 129extern void ix86_expand_branch (enum rtx_code, rtx, rtx, rtx);
130extern void ix86_expand_setcc (rtx, enum rtx_code, rtx, rtx);
9ad50766 131extern bool ix86_expand_int_movcc (rtx[]);
132extern bool ix86_expand_fp_movcc (rtx[]);
76405cce 133extern bool ix86_expand_fp_vcond (rtx[]);
e313c83f 134extern bool ix86_expand_int_vcond (rtx[]);
f4803722 135extern void ix86_expand_vec_perm (rtx[]);
dab48979 136extern bool ix86_expand_mask_vec_cmp (rtx[]);
137extern bool ix86_expand_int_vec_cmp (rtx[]);
138extern bool ix86_expand_fp_vec_cmp (rtx[]);
98da9bbe 139extern void ix86_expand_sse_movcc (rtx, rtx, rtx, rtx);
3b87d2ec 140extern void ix86_expand_sse_unpack (rtx, rtx, bool, bool);
9ad50766 141extern bool ix86_expand_int_addcc (rtx[]);
046b8917 142extern rtx_insn *ix86_expand_call (rtx, rtx, rtx, rtx, rtx, bool);
c4a7766b 143extern void ix86_split_call_vzeroupper (rtx, rtx);
4a29bad1 144extern void x86_initialize_trampoline (rtx, rtx, rtx);
145extern rtx ix86_zero_extend_to_Pmode (rtx);
146extern void ix86_split_long_move (rtx[]);
3754d046 147extern void ix86_split_ashl (rtx *, rtx, machine_mode);
148extern void ix86_split_ashr (rtx *, rtx, machine_mode);
149extern void ix86_split_lshr (rtx *, rtx, machine_mode);
4a29bad1 150extern rtx ix86_find_base_term (rtx);
9ad50766 151extern bool ix86_check_movabs (rtx, int);
a48b8121 152extern bool ix86_check_no_addr_space (rtx);
3754d046 153extern void ix86_split_idivmod (machine_mode, rtx[], bool);
4a29bad1 154
3754d046 155extern rtx assign_386_stack_local (machine_mode, enum ix86_stack_slot);
ed3e6e5d 156extern int ix86_attr_length_immediate_default (rtx_insn *, bool);
157extern int ix86_attr_length_address_default (rtx_insn *);
158extern int ix86_attr_length_vex_default (rtx_insn *, bool, bool);
4a29bad1 159
3754d046 160extern rtx ix86_libcall_value (machine_mode);
4a29bad1 161extern bool ix86_function_arg_regno_p (int);
2761b7cb 162extern void ix86_asm_output_function_label (FILE *, const char *, tree);
d3feb168 163extern void ix86_call_abi_override (const_tree);
f589a94a 164extern int ix86_reg_parm_stack_space (const_tree);
d3feb168 165
30f690e0 166extern bool ix86_libc_has_function (enum function_class fn_class);
167
4a29bad1 168extern void x86_order_regs_for_local_alloc (void);
169extern void x86_function_profiler (FILE *, int);
170extern void x86_emit_floatuns (rtx [2]);
80ed5c06 171extern void ix86_emit_fp_unordered_jump (rtx);
e4f7fe6d 172
bfb02b0c 173extern void ix86_emit_i387_sinh (rtx, rtx);
174extern void ix86_emit_i387_cosh (rtx, rtx);
175extern void ix86_emit_i387_tanh (rtx, rtx);
2dad6ce6 176extern void ix86_emit_i387_asinh (rtx, rtx);
177extern void ix86_emit_i387_acosh (rtx, rtx);
178extern void ix86_emit_i387_atanh (rtx, rtx);
f474cd93 179extern void ix86_emit_i387_log1p (rtx, rtx);
3af06b97 180extern void ix86_emit_i387_round (rtx, rtx);
3754d046 181extern void ix86_emit_swdivsf (rtx, rtx, rtx, machine_mode);
182extern void ix86_emit_swsqrtsf (rtx, rtx, machine_mode, bool);
f474cd93 183
3754d046 184extern enum rtx_code ix86_reverse_condition (enum rtx_code, machine_mode);
01170b20 185
ef2f1a10 186extern void ix86_expand_lround (rtx, rtx);
9c42dd28 187extern void ix86_expand_lfloorceil (rtx, rtx, bool);
0ddf4ad9 188extern void ix86_expand_rint (rtx, rtx);
e7fdb903 189extern void ix86_expand_floorceil (rtx, rtx, bool);
190extern void ix86_expand_floorceildf_32 (rtx, rtx, bool);
ce7da6fe 191extern void ix86_expand_round_sse4 (rtx, rtx);
c3faca24 192extern void ix86_expand_round (rtx, rtx);
193extern void ix86_expand_rounddf_32 (rtx, rtx);
f78b4bc1 194extern void ix86_expand_trunc (rtx, rtx);
195extern void ix86_expand_truncdf_32 (rtx, rtx);
ef2f1a10 196
b1b4d742 197extern void ix86_expand_vecop_qihi (enum rtx_code, rtx, rtx, rtx);
198
ed534878 199extern rtx ix86_split_stack_guard (void);
4b06e27c 200
7953c610 201#ifdef TREE_CODE
3970ad84 202extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree, int);
cb4070e0 203#endif /* TREE_CODE */
7953c610 204
cb4070e0 205#endif /* RTX_CODE */
7953c610 206
207#ifdef TREE_CODE
a16734cd 208extern int ix86_data_alignment (tree, int, bool);
3754d046 209extern unsigned int ix86_local_alignment (tree, machine_mode,
ad33891d 210 unsigned int);
3754d046 211extern unsigned int ix86_minimum_alignment (tree, machine_mode,
8645d3e7 212 unsigned int);
4a29bad1 213extern tree ix86_handle_shared_attribute (tree *, tree, tree, int, bool *);
c0933680 214extern tree ix86_handle_selectany_attribute (tree *, tree, tree, int, bool *);
4a29bad1 215extern int x86_field_alignment (tree, int);
55310327 216extern tree ix86_valid_target_attribute_tree (tree,
217 struct gcc_options *,
218 struct gcc_options *);
31db4638 219extern unsigned int ix86_get_callcvt (const_tree);
220
7953c610 221#endif
7b4a38a6 222
4a55687c 223extern rtx ix86_tls_module_base (void);
83520389 224extern bool ix86_tls_address_pattern_p (rtx);
225extern rtx ix86_rewrite_tls_address (rtx);
2d6788fe 226
ad2c46cf 227extern void ix86_expand_vector_init (bool, rtx, rtx);
228extern void ix86_expand_vector_set (bool, rtx, rtx, int);
229extern void ix86_expand_vector_extract (bool, rtx, rtx, int);
2e954432 230extern void ix86_expand_reduc (rtx (*)(rtx, rtx, rtx), rtx, rtx);
ad2c46cf 231
e2b81403 232extern void ix86_expand_vec_extract_even_odd (rtx, rtx, rtx, unsigned);
02d55a7f 233extern bool ix86_expand_pextr (rtx *);
bd4b3ce4 234extern bool ix86_expand_pinsr (rtx *);
3737d3e4 235extern void ix86_expand_mul_widen_evenodd (rtx, rtx, rtx, bool, bool);
236extern void ix86_expand_mul_widen_hilo (rtx, rtx, rtx, bool, bool);
087cf0d3 237extern void ix86_expand_sse2_mulv4si3 (rtx, rtx, rtx);
04c4f045 238extern void ix86_expand_sse2_mulvxdi3 (rtx, rtx, rtx);
95e3231d 239extern void ix86_expand_sse2_abs (rtx, rtx);
e2b81403 240
46f8e3b0 241/* In i386-c.c */
242extern void ix86_target_macros (void);
243extern void ix86_register_pragmas (void);
244
03385ed3 245/* In i386-d.c */
246extern void ix86_d_target_versions (void);
247
7b4a38a6 248/* In winnt.c */
4a29bad1 249extern void i386_pe_unique_section (tree, int);
250extern void i386_pe_declare_function_type (FILE *, const char *, int);
1bcdd2a0 251extern void i386_pe_record_external_function (tree, const char *);
dd1a226e 252extern void i386_pe_maybe_record_exported_symbol (tree, const char *, int);
4a29bad1 253extern void i386_pe_encode_section_info (tree, rtx, int);
a9f1838b 254extern bool i386_pe_binds_local_p (const_tree);
4a29bad1 255extern const char *i386_pe_strip_name_encoding_full (const char *);
a9f1838b 256extern bool i386_pe_valid_dllimport_attribute_p (const_tree);
dd1a226e 257extern unsigned int i386_pe_section_type_flags (tree, const char *, int);
258extern void i386_pe_asm_named_section (const char *, unsigned int, tree);
259extern void i386_pe_asm_output_aligned_decl_common (FILE *, tree,
260 const char *,
261 HOST_WIDE_INT,
262 HOST_WIDE_INT);
263extern void i386_pe_file_end (void);
b50dd1e4 264extern void i386_pe_asm_lto_start (void);
265extern void i386_pe_asm_lto_end (void);
1f2aa021 266extern void i386_pe_start_function (FILE *, const char *, tree);
267extern void i386_pe_end_function (FILE *, const char *, tree);
720d3116 268extern void i386_pe_end_cold_function (FILE *, const char *, tree);
de0e5a52 269extern void i386_pe_assemble_visibility (tree, int);
97a424bc 270extern tree i386_pe_mangle_decl_assembler_name (tree, tree);
d86d364d 271extern tree i386_pe_mangle_assembler_name (const char *);
5496fac8 272extern void i386_pe_record_stub (const char *);
6c1e551f 273
1f2aa021 274extern void i386_pe_seh_init (FILE *);
275extern void i386_pe_seh_end_prologue (FILE *);
720d3116 276extern void i386_pe_seh_cold_init (FILE *, const char *);
18282db0 277extern void i386_pe_seh_unwind_emit (FILE *, rtx_insn *);
8ad0b530 278extern void i386_pe_seh_emit_except_personality (rtx);
279extern void i386_pe_seh_init_sections (void);
1f2aa021 280
6c1e551f 281/* In winnt-cxx.c and winnt-stubs.c */
282extern void i386_pe_adjust_class_at_definition (tree);
283extern bool i386_pe_type_dllimport_p (tree);
284extern bool i386_pe_type_dllexport_p (tree);
285
29b4b219 286extern int i386_pe_reloc_rw_mask (void);
287
c629a39a 288extern char internal_label_prefix[16];
289extern int internal_label_prefix_len;
290
5ed3cc7b 291extern bool ix86_epilogue_uses (int);
292
c629a39a 293struct ix86_address
294{
295 rtx base, index, disp;
296 HOST_WIDE_INT scale;
716c563b 297 addr_space_t seg;
c629a39a 298};
299
300extern int ix86_decompose_address (rtx, struct ix86_address *);
907c92a4 301extern int memory_address_length (rtx, bool);
43e4a084 302extern void x86_output_aligned_bss (FILE *, tree, const char *,
303 unsigned HOST_WIDE_INT, int);
3d2da6de 304extern void x86_elf_aligned_decl_common (FILE *, tree, const char *,
305 unsigned HOST_WIDE_INT, int);
c629a39a 306
307#ifdef RTX_CODE
308extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *,
309 enum rtx_code *, enum rtx_code *);
310extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code);
311#endif
5e6d8953 312extern int asm_preferred_eh_data_format (int, int);
257b32ac 313
314#ifdef HAVE_ATTR_cpu
315extern enum attr_cpu ix86_schedule;
316#endif
1f2aa021 317
8c64807d 318extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op);
a48af2fa 319extern const char * ix86_output_indirect_jmp (rtx call_op);
5e58c18f 320extern const char * ix86_output_function_return (bool long_p);
a48af2fa 321extern const char * ix86_output_indirect_function_return (rtx ret_op);
322extern void ix86_split_simple_return_pop_internal (rtx);
6a5f6dde 323extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load,
582adad1 324 machine_mode mode);
79959e63 325extern int ix86_min_insn_size (rtx_insn *);
326
327extern int ix86_issue_rate (void);
328extern int ix86_adjust_cost (rtx_insn *insn, int dep_type, rtx_insn *dep_insn,
329 int cost, unsigned int);
330extern int ia32_multipass_dfa_lookahead (void);
331extern bool ix86_macro_fusion_p (void);
332extern bool ix86_macro_fusion_pair_p (rtx_insn *condgen, rtx_insn *condjmp);
333
334extern bool ix86_bd_has_dispatch (rtx_insn *insn, int action);
335extern void ix86_bd_do_dispatch (rtx_insn *insn, int mode);
336
337extern void ix86_core2i7_init_hooks (void);
338
339extern int ix86_atom_sched_reorder (FILE *, int, rtx_insn **, int *, int);
44ad1e56 340
adbaa93b 341extern poly_int64 ix86_push_rounding (poly_int64);
342
44ad1e56 343#ifdef RTX_CODE
344/* Target data for multipass lookahead scheduling.
345 Currently used for Core 2/i7 tuning. */
346struct ix86_first_cycle_multipass_data_
347{
348 /* The length (in bytes) of ifetch block in this solution. */
349 int ifetch_block_len;
350 /* Number of instructions in ifetch block in this solution. */
351 int ifetch_block_n_insns;
352 /* Bitmap to remember changes to ready_try for backtracking. */
353 sbitmap ready_try_change;
354 /* Size of the bitmap. */
355 int ready_try_change_size;
356};
357# define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DATA_T \
358 struct ix86_first_cycle_multipass_data_
359#endif /* RTX_CODE */
716c563b 360
361const addr_space_t ADDR_SPACE_SEG_FS = 1;
362const addr_space_t ADDR_SPACE_SEG_GS = 2;
97812c47 363
364namespace gcc { class context; }
365class rtl_opt_pass;
366
367extern rtl_opt_pass *make_pass_insert_vzeroupper (gcc::context *);
368extern rtl_opt_pass *make_pass_stv (gcc::context *);
92ac8192 369extern rtl_opt_pass *make_pass_insert_endbranch (gcc::context *);
Mirror of https://gcc.gnu.org/git/gcc.git