1 /* Definitions of target machine for GCC for IA-32.
2 Copyright (C) 1988-2018 Free Software Foundation, Inc.
4 This file is part of GCC.
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)
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.
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/>. */
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
,
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
);
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);
38 extern void ix86_output_addr_vec_elt (FILE *, int);
39 extern void ix86_output_addr_diff_elt (FILE *, int, int);
41 extern enum calling_abi
ix86_cfun_abi (void);
42 extern enum calling_abi
ix86_function_type_abi (const_tree
);
44 extern bool ix86_use_pseudo_pic_reg (void);
46 extern void ix86_reset_previous_fndecl (void);
48 extern bool ix86_using_red_zone (void);
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
);
64 extern int avx_vpermilp_parallel (rtx par
, machine_mode mode
);
65 extern int avx_vperm2f128_parallel (rtx par
, machine_mode mode
);
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);
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);
78 extern void split_double_mode (machine_mode
, rtx
[], int, rtx
[], rtx
[]);
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
);
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
,
94 extern void ix86_fixup_binary_operands_no_copy (enum rtx_code
,
96 extern void ix86_expand_binary_operator (enum rtx_code
,
98 extern void ix86_expand_vector_logical_operator (enum rtx_code
,
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
,
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
,
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_mask_vec_cmp (rtx
[]);
137 extern bool ix86_expand_int_vec_cmp (rtx
[]);
138 extern bool ix86_expand_fp_vec_cmp (rtx
[]);
139 extern void ix86_expand_sse_movcc (rtx
, rtx
, rtx
, rtx
);
140 extern void ix86_expand_sse_unpack (rtx
, rtx
, bool, bool);
141 extern bool ix86_expand_int_addcc (rtx
[]);
142 extern rtx
ix86_expand_call (rtx
, rtx
, rtx
, rtx
, rtx
, bool);
143 extern void ix86_split_call_vzeroupper (rtx
, rtx
);
144 extern void x86_initialize_trampoline (rtx
, rtx
, rtx
);
145 extern rtx
ix86_zero_extend_to_Pmode (rtx
);
146 extern void ix86_split_long_move (rtx
[]);
147 extern void ix86_split_ashl (rtx
*, rtx
, machine_mode
);
148 extern void ix86_split_ashr (rtx
*, rtx
, machine_mode
);
149 extern void ix86_split_lshr (rtx
*, rtx
, machine_mode
);
150 extern rtx
ix86_find_base_term (rtx
);
151 extern bool ix86_check_movabs (rtx
, int);
152 extern bool ix86_check_no_addr_space (rtx
);
153 extern void ix86_split_idivmod (machine_mode
, rtx
[], bool);
155 extern rtx
assign_386_stack_local (machine_mode
, enum ix86_stack_slot
);
156 extern int ix86_attr_length_immediate_default (rtx_insn
*, bool);
157 extern int ix86_attr_length_address_default (rtx_insn
*);
158 extern int ix86_attr_length_vex_default (rtx_insn
*, bool, bool);
160 extern rtx
ix86_libcall_value (machine_mode
);
161 extern bool ix86_function_arg_regno_p (int);
162 extern void ix86_asm_output_function_label (FILE *, const char *, tree
);
163 extern void ix86_call_abi_override (const_tree
);
164 extern int ix86_reg_parm_stack_space (const_tree
);
166 extern bool ix86_libc_has_function (enum function_class fn_class
);
168 extern void x86_order_regs_for_local_alloc (void);
169 extern void x86_function_profiler (FILE *, int);
170 extern void x86_emit_floatuns (rtx
[2]);
171 extern void ix86_emit_fp_unordered_jump (rtx
);
173 extern void ix86_emit_i387_log1p (rtx
, rtx
);
174 extern void ix86_emit_i387_round (rtx
, rtx
);
175 extern void ix86_emit_swdivsf (rtx
, rtx
, rtx
, machine_mode
);
176 extern void ix86_emit_swsqrtsf (rtx
, rtx
, machine_mode
, bool);
178 extern enum rtx_code
ix86_reverse_condition (enum rtx_code
, machine_mode
);
180 extern void ix86_expand_lround (rtx
, rtx
);
181 extern void ix86_expand_lfloorceil (rtx
, rtx
, bool);
182 extern void ix86_expand_rint (rtx
, rtx
);
183 extern void ix86_expand_floorceil (rtx
, rtx
, bool);
184 extern void ix86_expand_floorceildf_32 (rtx
, rtx
, bool);
185 extern void ix86_expand_round_sse4 (rtx
, rtx
);
186 extern void ix86_expand_round (rtx
, rtx
);
187 extern void ix86_expand_rounddf_32 (rtx
, rtx
);
188 extern void ix86_expand_trunc (rtx
, rtx
);
189 extern void ix86_expand_truncdf_32 (rtx
, rtx
);
191 extern void ix86_expand_vecop_qihi (enum rtx_code
, rtx
, rtx
, rtx
);
193 extern rtx
ix86_split_stack_guard (void);
196 extern void init_cumulative_args (CUMULATIVE_ARGS
*, tree
, rtx
, tree
, int);
197 #endif /* TREE_CODE */
199 #endif /* RTX_CODE */
202 extern int ix86_data_alignment (tree
, int, bool);
203 extern unsigned int ix86_local_alignment (tree
, machine_mode
,
205 extern unsigned int ix86_minimum_alignment (tree
, machine_mode
,
207 extern tree
ix86_handle_shared_attribute (tree
*, tree
, tree
, int, bool *);
208 extern tree
ix86_handle_selectany_attribute (tree
*, tree
, tree
, int, bool *);
209 extern int x86_field_alignment (tree
, int);
210 extern tree
ix86_valid_target_attribute_tree (tree
,
211 struct gcc_options
*,
212 struct gcc_options
*);
213 extern unsigned int ix86_get_callcvt (const_tree
);
217 extern rtx
ix86_tls_module_base (void);
218 extern bool ix86_tls_address_pattern_p (rtx
);
219 extern rtx
ix86_rewrite_tls_address (rtx
);
221 extern void ix86_expand_vector_init (bool, rtx
, rtx
);
222 extern void ix86_expand_vector_set (bool, rtx
, rtx
, int);
223 extern void ix86_expand_vector_extract (bool, rtx
, rtx
, int);
224 extern void ix86_expand_reduc (rtx (*)(rtx
, rtx
, rtx
), rtx
, rtx
);
226 extern void ix86_expand_vec_extract_even_odd (rtx
, rtx
, rtx
, unsigned);
227 extern bool ix86_expand_pextr (rtx
*);
228 extern bool ix86_expand_pinsr (rtx
*);
229 extern void ix86_expand_mul_widen_evenodd (rtx
, rtx
, rtx
, bool, bool);
230 extern void ix86_expand_mul_widen_hilo (rtx
, rtx
, rtx
, bool, bool);
231 extern void ix86_expand_sse2_mulv4si3 (rtx
, rtx
, rtx
);
232 extern void ix86_expand_sse2_mulvxdi3 (rtx
, rtx
, rtx
);
233 extern void ix86_expand_sse2_abs (rtx
, rtx
);
235 extern bool ix86_bnd_prefixed_insn_p (rtx
);
238 extern void ix86_target_macros (void);
239 extern void ix86_register_pragmas (void);
242 extern void i386_pe_unique_section (tree
, int);
243 extern void i386_pe_declare_function_type (FILE *, const char *, int);
244 extern void i386_pe_record_external_function (tree
, const char *);
245 extern void i386_pe_maybe_record_exported_symbol (tree
, const char *, int);
246 extern void i386_pe_encode_section_info (tree
, rtx
, int);
247 extern bool i386_pe_binds_local_p (const_tree
);
248 extern const char *i386_pe_strip_name_encoding_full (const char *);
249 extern bool i386_pe_valid_dllimport_attribute_p (const_tree
);
250 extern unsigned int i386_pe_section_type_flags (tree
, const char *, int);
251 extern void i386_pe_asm_named_section (const char *, unsigned int, tree
);
252 extern void i386_pe_asm_output_aligned_decl_common (FILE *, tree
,
256 extern void i386_pe_file_end (void);
257 extern void i386_pe_start_function (FILE *, const char *, tree
);
258 extern void i386_pe_end_function (FILE *, const char *, tree
);
259 extern void i386_pe_assemble_visibility (tree
, int);
260 extern tree
i386_pe_mangle_decl_assembler_name (tree
, tree
);
261 extern tree
i386_pe_mangle_assembler_name (const char *);
262 extern void i386_pe_record_stub (const char *);
264 extern void i386_pe_seh_init (FILE *);
265 extern void i386_pe_seh_end_prologue (FILE *);
266 extern void i386_pe_seh_unwind_emit (FILE *, rtx_insn
*);
267 extern void i386_pe_seh_emit_except_personality (rtx
);
268 extern void i386_pe_seh_init_sections (void);
270 /* In winnt-cxx.c and winnt-stubs.c */
271 extern void i386_pe_adjust_class_at_definition (tree
);
272 extern bool i386_pe_type_dllimport_p (tree
);
273 extern bool i386_pe_type_dllexport_p (tree
);
275 extern int i386_pe_reloc_rw_mask (void);
277 extern char internal_label_prefix
[16];
278 extern int internal_label_prefix_len
;
280 extern bool ix86_epilogue_uses (int);
284 rtx base
, index
, disp
;
289 extern int ix86_decompose_address (rtx
, struct ix86_address
*);
290 extern int memory_address_length (rtx
, bool);
291 extern void x86_output_aligned_bss (FILE *, tree
, const char *,
292 unsigned HOST_WIDE_INT
, int);
293 extern void x86_elf_aligned_decl_common (FILE *, tree
, const char *,
294 unsigned HOST_WIDE_INT
, int);
297 extern void ix86_fp_comparison_codes (enum rtx_code code
, enum rtx_code
*,
298 enum rtx_code
*, enum rtx_code
*);
299 extern enum rtx_code
ix86_fp_compare_code_to_integer (enum rtx_code
);
301 extern int asm_preferred_eh_data_format (int, int);
304 extern enum attr_cpu ix86_schedule
;
307 extern const char * ix86_output_call_insn (rtx_insn
*insn
, rtx call_op
);
308 extern const char * ix86_output_indirect_jmp (rtx call_op
, bool ret_p
);
309 extern const char * ix86_output_function_return (bool long_p
);
310 extern bool ix86_operands_ok_for_move_multiple (rtx
*operands
, bool load
,
312 extern int ix86_min_insn_size (rtx_insn
*);
314 extern int ix86_issue_rate (void);
315 extern int ix86_adjust_cost (rtx_insn
*insn
, int dep_type
, rtx_insn
*dep_insn
,
316 int cost
, unsigned int);
317 extern int ia32_multipass_dfa_lookahead (void);
318 extern bool ix86_macro_fusion_p (void);
319 extern bool ix86_macro_fusion_pair_p (rtx_insn
*condgen
, rtx_insn
*condjmp
);
321 extern bool ix86_bd_has_dispatch (rtx_insn
*insn
, int action
);
322 extern void ix86_bd_do_dispatch (rtx_insn
*insn
, int mode
);
324 extern void ix86_core2i7_init_hooks (void);
326 extern int ix86_atom_sched_reorder (FILE *, int, rtx_insn
**, int *, int);
328 extern poly_int64
ix86_push_rounding (poly_int64
);
331 /* Target data for multipass lookahead scheduling.
332 Currently used for Core 2/i7 tuning. */
333 struct ix86_first_cycle_multipass_data_
335 /* The length (in bytes) of ifetch block in this solution. */
336 int ifetch_block_len
;
337 /* Number of instructions in ifetch block in this solution. */
338 int ifetch_block_n_insns
;
339 /* Bitmap to remember changes to ready_try for backtracking. */
340 sbitmap ready_try_change
;
341 /* Size of the bitmap. */
342 int ready_try_change_size
;
344 # define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DATA_T \
345 struct ix86_first_cycle_multipass_data_
346 #endif /* RTX_CODE */
348 const addr_space_t ADDR_SPACE_SEG_FS
= 1;
349 const addr_space_t ADDR_SPACE_SEG_GS
= 2;
351 namespace gcc
{ class context
; }
354 extern rtl_opt_pass
*make_pass_insert_vzeroupper (gcc::context
*);
355 extern rtl_opt_pass
*make_pass_stv (gcc::context
*);
356 extern rtl_opt_pass
*make_pass_insert_endbranch (gcc::context
*);