Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/i386/i386.h @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
children |
rev | line source |
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0 | 1 /* Definitions of target machine for GCC for IA-32. |
145 | 2 Copyright (C) 1988-2020 Free Software Foundation, Inc. |
0 | 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 Under Section 7 of GPL version 3, you are granted additional | |
17 permissions described in the GCC Runtime Library Exception, version | |
18 3.1, as published by the Free Software Foundation. | |
19 | |
20 You should have received a copy of the GNU General Public License and | |
21 a copy of the GCC Runtime Library Exception along with this program; | |
22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 <http://www.gnu.org/licenses/>. */ | |
24 | |
25 /* The purpose of this file is to define the characteristics of the i386, | |
26 independent of assembler syntax or operating system. | |
27 | |
28 Three other files build on this one to describe a specific assembler syntax: | |
29 bsd386.h, att386.h, and sun386.h. | |
30 | |
31 The actual tm.h file for a particular system should include | |
32 this file, and then the file for the appropriate assembler syntax. | |
33 | |
34 Many macros that specify assembler syntax are omitted entirely from | |
35 this file because they really belong in the files for particular | |
36 assemblers. These include RP, IP, LPREFIX, PUT_OP_SIZE, USE_STAR, | |
37 ADDR_BEG, ADDR_END, PRINT_IREG, PRINT_SCALE, PRINT_B_I_S, and many | |
38 that start with ASM_ or end in ASM_OP. */ | |
39 | |
40 /* Redefines for option macros. */ | |
41 | |
111 | 42 #define TARGET_64BIT TARGET_ISA_64BIT |
43 #define TARGET_64BIT_P(x) TARGET_ISA_64BIT_P(x) | |
44 #define TARGET_MMX TARGET_ISA_MMX | |
45 #define TARGET_MMX_P(x) TARGET_ISA_MMX_P(x) | |
46 #define TARGET_3DNOW TARGET_ISA_3DNOW | |
47 #define TARGET_3DNOW_P(x) TARGET_ISA_3DNOW_P(x) | |
48 #define TARGET_3DNOW_A TARGET_ISA_3DNOW_A | |
49 #define TARGET_3DNOW_A_P(x) TARGET_ISA_3DNOW_A_P(x) | |
50 #define TARGET_SSE TARGET_ISA_SSE | |
51 #define TARGET_SSE_P(x) TARGET_ISA_SSE_P(x) | |
52 #define TARGET_SSE2 TARGET_ISA_SSE2 | |
53 #define TARGET_SSE2_P(x) TARGET_ISA_SSE2_P(x) | |
54 #define TARGET_SSE3 TARGET_ISA_SSE3 | |
55 #define TARGET_SSE3_P(x) TARGET_ISA_SSE3_P(x) | |
56 #define TARGET_SSSE3 TARGET_ISA_SSSE3 | |
57 #define TARGET_SSSE3_P(x) TARGET_ISA_SSSE3_P(x) | |
58 #define TARGET_SSE4_1 TARGET_ISA_SSE4_1 | |
59 #define TARGET_SSE4_1_P(x) TARGET_ISA_SSE4_1_P(x) | |
60 #define TARGET_SSE4_2 TARGET_ISA_SSE4_2 | |
61 #define TARGET_SSE4_2_P(x) TARGET_ISA_SSE4_2_P(x) | |
62 #define TARGET_AVX TARGET_ISA_AVX | |
63 #define TARGET_AVX_P(x) TARGET_ISA_AVX_P(x) | |
64 #define TARGET_AVX2 TARGET_ISA_AVX2 | |
65 #define TARGET_AVX2_P(x) TARGET_ISA_AVX2_P(x) | |
66 #define TARGET_AVX512F TARGET_ISA_AVX512F | |
67 #define TARGET_AVX512F_P(x) TARGET_ISA_AVX512F_P(x) | |
68 #define TARGET_AVX512PF TARGET_ISA_AVX512PF | |
69 #define TARGET_AVX512PF_P(x) TARGET_ISA_AVX512PF_P(x) | |
70 #define TARGET_AVX512ER TARGET_ISA_AVX512ER | |
71 #define TARGET_AVX512ER_P(x) TARGET_ISA_AVX512ER_P(x) | |
72 #define TARGET_AVX512CD TARGET_ISA_AVX512CD | |
73 #define TARGET_AVX512CD_P(x) TARGET_ISA_AVX512CD_P(x) | |
74 #define TARGET_AVX512DQ TARGET_ISA_AVX512DQ | |
75 #define TARGET_AVX512DQ_P(x) TARGET_ISA_AVX512DQ_P(x) | |
76 #define TARGET_AVX512BW TARGET_ISA_AVX512BW | |
77 #define TARGET_AVX512BW_P(x) TARGET_ISA_AVX512BW_P(x) | |
78 #define TARGET_AVX512VL TARGET_ISA_AVX512VL | |
79 #define TARGET_AVX512VL_P(x) TARGET_ISA_AVX512VL_P(x) | |
80 #define TARGET_AVX512VBMI TARGET_ISA_AVX512VBMI | |
81 #define TARGET_AVX512VBMI_P(x) TARGET_ISA_AVX512VBMI_P(x) | |
82 #define TARGET_AVX512IFMA TARGET_ISA_AVX512IFMA | |
83 #define TARGET_AVX512IFMA_P(x) TARGET_ISA_AVX512IFMA_P(x) | |
145 | 84 #define TARGET_AVX5124FMAPS TARGET_ISA2_AVX5124FMAPS |
85 #define TARGET_AVX5124FMAPS_P(x) TARGET_ISA2_AVX5124FMAPS_P(x) | |
86 #define TARGET_AVX5124VNNIW TARGET_ISA2_AVX5124VNNIW | |
87 #define TARGET_AVX5124VNNIW_P(x) TARGET_ISA2_AVX5124VNNIW_P(x) | |
131 | 88 #define TARGET_AVX512VBMI2 TARGET_ISA_AVX512VBMI2 |
89 #define TARGET_AVX512VBMI2_P(x) TARGET_ISA_AVX512VBMI2_P(x) | |
111 | 90 #define TARGET_AVX512VPOPCNTDQ TARGET_ISA_AVX512VPOPCNTDQ |
91 #define TARGET_AVX512VPOPCNTDQ_P(x) TARGET_ISA_AVX512VPOPCNTDQ_P(x) | |
131 | 92 #define TARGET_AVX512VNNI TARGET_ISA_AVX512VNNI |
93 #define TARGET_AVX512VNNI_P(x) TARGET_ISA_AVX512VNNI_P(x) | |
94 #define TARGET_AVX512BITALG TARGET_ISA_AVX512BITALG | |
95 #define TARGET_AVX512BITALG_P(x) TARGET_ISA_AVX512BITALG_P(x) | |
145 | 96 #define TARGET_AVX512VP2INTERSECT TARGET_ISA2_AVX512VP2INTERSECT |
97 #define TARGET_AVX512VP2INTERSECT_P(x) TARGET_ISA2_AVX512VP2INTERSECT_P(x) | |
111 | 98 #define TARGET_FMA TARGET_ISA_FMA |
99 #define TARGET_FMA_P(x) TARGET_ISA_FMA_P(x) | |
100 #define TARGET_SSE4A TARGET_ISA_SSE4A | |
101 #define TARGET_SSE4A_P(x) TARGET_ISA_SSE4A_P(x) | |
102 #define TARGET_FMA4 TARGET_ISA_FMA4 | |
103 #define TARGET_FMA4_P(x) TARGET_ISA_FMA4_P(x) | |
104 #define TARGET_XOP TARGET_ISA_XOP | |
105 #define TARGET_XOP_P(x) TARGET_ISA_XOP_P(x) | |
106 #define TARGET_LWP TARGET_ISA_LWP | |
107 #define TARGET_LWP_P(x) TARGET_ISA_LWP_P(x) | |
108 #define TARGET_ABM TARGET_ISA_ABM | |
109 #define TARGET_ABM_P(x) TARGET_ISA_ABM_P(x) | |
145 | 110 #define TARGET_PCONFIG TARGET_ISA2_PCONFIG |
111 #define TARGET_PCONFIG_P(x) TARGET_ISA2_PCONFIG_P(x) | |
112 #define TARGET_WBNOINVD TARGET_ISA2_WBNOINVD | |
113 #define TARGET_WBNOINVD_P(x) TARGET_ISA2_WBNOINVD_P(x) | |
114 #define TARGET_SGX TARGET_ISA2_SGX | |
115 #define TARGET_SGX_P(x) TARGET_ISA2_SGX_P(x) | |
116 #define TARGET_RDPID TARGET_ISA2_RDPID | |
117 #define TARGET_RDPID_P(x) TARGET_ISA2_RDPID_P(x) | |
111 | 118 #define TARGET_GFNI TARGET_ISA_GFNI |
119 #define TARGET_GFNI_P(x) TARGET_ISA_GFNI_P(x) | |
145 | 120 #define TARGET_VAES TARGET_ISA2_VAES |
121 #define TARGET_VAES_P(x) TARGET_ISA2_VAES_P(x) | |
131 | 122 #define TARGET_VPCLMULQDQ TARGET_ISA_VPCLMULQDQ |
123 #define TARGET_VPCLMULQDQ_P(x) TARGET_ISA_VPCLMULQDQ_P(x) | |
111 | 124 #define TARGET_BMI TARGET_ISA_BMI |
125 #define TARGET_BMI_P(x) TARGET_ISA_BMI_P(x) | |
126 #define TARGET_BMI2 TARGET_ISA_BMI2 | |
127 #define TARGET_BMI2_P(x) TARGET_ISA_BMI2_P(x) | |
128 #define TARGET_LZCNT TARGET_ISA_LZCNT | |
129 #define TARGET_LZCNT_P(x) TARGET_ISA_LZCNT_P(x) | |
130 #define TARGET_TBM TARGET_ISA_TBM | |
131 #define TARGET_TBM_P(x) TARGET_ISA_TBM_P(x) | |
132 #define TARGET_POPCNT TARGET_ISA_POPCNT | |
133 #define TARGET_POPCNT_P(x) TARGET_ISA_POPCNT_P(x) | |
134 #define TARGET_SAHF TARGET_ISA_SAHF | |
135 #define TARGET_SAHF_P(x) TARGET_ISA_SAHF_P(x) | |
145 | 136 #define TARGET_MOVBE TARGET_ISA2_MOVBE |
137 #define TARGET_MOVBE_P(x) TARGET_ISA2_MOVBE_P(x) | |
111 | 138 #define TARGET_CRC32 TARGET_ISA_CRC32 |
139 #define TARGET_CRC32_P(x) TARGET_ISA_CRC32_P(x) | |
140 #define TARGET_AES TARGET_ISA_AES | |
141 #define TARGET_AES_P(x) TARGET_ISA_AES_P(x) | |
142 #define TARGET_SHA TARGET_ISA_SHA | |
143 #define TARGET_SHA_P(x) TARGET_ISA_SHA_P(x) | |
144 #define TARGET_CLFLUSHOPT TARGET_ISA_CLFLUSHOPT | |
145 #define TARGET_CLFLUSHOPT_P(x) TARGET_ISA_CLFLUSHOPT_P(x) | |
145 | 146 #define TARGET_CLZERO TARGET_ISA2_CLZERO |
147 #define TARGET_CLZERO_P(x) TARGET_ISA2_CLZERO_P(x) | |
111 | 148 #define TARGET_XSAVEC TARGET_ISA_XSAVEC |
149 #define TARGET_XSAVEC_P(x) TARGET_ISA_XSAVEC_P(x) | |
150 #define TARGET_XSAVES TARGET_ISA_XSAVES | |
151 #define TARGET_XSAVES_P(x) TARGET_ISA_XSAVES_P(x) | |
152 #define TARGET_PCLMUL TARGET_ISA_PCLMUL | |
153 #define TARGET_PCLMUL_P(x) TARGET_ISA_PCLMUL_P(x) | |
145 | 154 #define TARGET_CMPXCHG16B TARGET_ISA2_CX16 |
155 #define TARGET_CMPXCHG16B_P(x) TARGET_ISA2_CX16_P(x) | |
111 | 156 #define TARGET_FSGSBASE TARGET_ISA_FSGSBASE |
157 #define TARGET_FSGSBASE_P(x) TARGET_ISA_FSGSBASE_P(x) | |
158 #define TARGET_RDRND TARGET_ISA_RDRND | |
159 #define TARGET_RDRND_P(x) TARGET_ISA_RDRND_P(x) | |
160 #define TARGET_F16C TARGET_ISA_F16C | |
161 #define TARGET_F16C_P(x) TARGET_ISA_F16C_P(x) | |
162 #define TARGET_RTM TARGET_ISA_RTM | |
163 #define TARGET_RTM_P(x) TARGET_ISA_RTM_P(x) | |
145 | 164 #define TARGET_HLE TARGET_ISA2_HLE |
165 #define TARGET_HLE_P(x) TARGET_ISA2_HLE_P(x) | |
111 | 166 #define TARGET_RDSEED TARGET_ISA_RDSEED |
167 #define TARGET_RDSEED_P(x) TARGET_ISA_RDSEED_P(x) | |
168 #define TARGET_PRFCHW TARGET_ISA_PRFCHW | |
169 #define TARGET_PRFCHW_P(x) TARGET_ISA_PRFCHW_P(x) | |
170 #define TARGET_ADX TARGET_ISA_ADX | |
171 #define TARGET_ADX_P(x) TARGET_ISA_ADX_P(x) | |
172 #define TARGET_FXSR TARGET_ISA_FXSR | |
173 #define TARGET_FXSR_P(x) TARGET_ISA_FXSR_P(x) | |
174 #define TARGET_XSAVE TARGET_ISA_XSAVE | |
175 #define TARGET_XSAVE_P(x) TARGET_ISA_XSAVE_P(x) | |
176 #define TARGET_XSAVEOPT TARGET_ISA_XSAVEOPT | |
177 #define TARGET_XSAVEOPT_P(x) TARGET_ISA_XSAVEOPT_P(x) | |
178 #define TARGET_PREFETCHWT1 TARGET_ISA_PREFETCHWT1 | |
179 #define TARGET_PREFETCHWT1_P(x) TARGET_ISA_PREFETCHWT1_P(x) | |
180 #define TARGET_CLWB TARGET_ISA_CLWB | |
181 #define TARGET_CLWB_P(x) TARGET_ISA_CLWB_P(x) | |
145 | 182 #define TARGET_MWAITX TARGET_ISA2_MWAITX |
183 #define TARGET_MWAITX_P(x) TARGET_ISA2_MWAITX_P(x) | |
111 | 184 #define TARGET_PKU TARGET_ISA_PKU |
185 #define TARGET_PKU_P(x) TARGET_ISA_PKU_P(x) | |
186 #define TARGET_SHSTK TARGET_ISA_SHSTK | |
187 #define TARGET_SHSTK_P(x) TARGET_ISA_SHSTK_P(x) | |
131 | 188 #define TARGET_MOVDIRI TARGET_ISA_MOVDIRI |
189 #define TARGET_MOVDIRI_P(x) TARGET_ISA_MOVDIRI_P(x) | |
145 | 190 #define TARGET_MOVDIR64B TARGET_ISA2_MOVDIR64B |
191 #define TARGET_MOVDIR64B_P(x) TARGET_ISA2_MOVDIR64B_P(x) | |
192 #define TARGET_WAITPKG TARGET_ISA2_WAITPKG | |
193 #define TARGET_WAITPKG_P(x) TARGET_ISA2_WAITPKG_P(x) | |
194 #define TARGET_CLDEMOTE TARGET_ISA2_CLDEMOTE | |
195 #define TARGET_CLDEMOTE_P(x) TARGET_ISA2_CLDEMOTE_P(x) | |
196 #define TARGET_PTWRITE TARGET_ISA2_PTWRITE | |
197 #define TARGET_PTWRITE_P(x) TARGET_ISA2_PTWRITE_P(x) | |
198 #define TARGET_AVX512BF16 TARGET_ISA2_AVX512BF16 | |
199 #define TARGET_AVX512BF16_P(x) TARGET_ISA2_AVX512BF16_P(x) | |
200 #define TARGET_ENQCMD TARGET_ISA2_ENQCMD | |
201 #define TARGET_ENQCMD_P(x) TARGET_ISA2_ENQCMD_P(x) | |
111 | 202 |
203 #define TARGET_LP64 TARGET_ABI_64 | |
204 #define TARGET_LP64_P(x) TARGET_ABI_64_P(x) | |
205 #define TARGET_X32 TARGET_ABI_X32 | |
206 #define TARGET_X32_P(x) TARGET_ABI_X32_P(x) | |
207 #define TARGET_16BIT TARGET_CODE16 | |
208 #define TARGET_16BIT_P(x) TARGET_CODE16_P(x) | |
0 | 209 |
145 | 210 #define TARGET_MMX_WITH_SSE (TARGET_64BIT && TARGET_SSE2) |
211 | |
0 | 212 #include "config/vxworks-dummy.h" |
213 | |
111 | 214 #include "config/i386/i386-opts.h" |
0 | 215 |
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
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216 #define MAX_STRINGOP_ALGS 4 |
0 | 217 |
218 /* Specify what algorithm to use for stringops on known size. | |
219 When size is unknown, the UNKNOWN_SIZE alg is used. When size is | |
220 known at compile time or estimated via feedback, the SIZE array | |
221 is walked in order until MAX is greater then the estimate (or -1 | |
222 means infinity). Corresponding ALG is used then. | |
111 | 223 When NOALIGN is true the code guaranting the alignment of the memory |
224 block is skipped. | |
225 | |
0 | 226 For example initializer: |
227 {{256, loop}, {-1, rep_prefix_4_byte}} | |
228 will use loop for blocks smaller or equal to 256 bytes, rep prefix will | |
229 be used otherwise. */ | |
230 struct stringop_algs | |
231 { | |
232 const enum stringop_alg unknown_size; | |
233 const struct stringop_strategy { | |
234 const int max; | |
235 const enum stringop_alg alg; | |
111 | 236 int noalign; |
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
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237 } size [MAX_STRINGOP_ALGS]; |
0 | 238 }; |
239 | |
145 | 240 /* Define the specific costs for a given cpu. NB: hard_register is used |
241 by TARGET_REGISTER_MOVE_COST and TARGET_MEMORY_MOVE_COST to compute | |
242 hard register move costs by register allocator. Relative costs of | |
243 pseudo register load and store versus pseudo register moves in RTL | |
244 expressions for TARGET_RTX_COSTS can be different from relative | |
245 costs of hard registers to get the most efficient operations with | |
246 pseudo registers. */ | |
0 | 247 |
248 struct processor_costs { | |
145 | 249 /* Costs used by register allocator. integer->integer register move |
250 cost is 2. */ | |
251 struct | |
252 { | |
253 const int movzbl_load; /* cost of loading using movzbl */ | |
254 const int int_load[3]; /* cost of loading integer registers | |
255 in QImode, HImode and SImode relative | |
256 to reg-reg move (2). */ | |
257 const int int_store[3]; /* cost of storing integer register | |
258 in QImode, HImode and SImode */ | |
259 const int fp_move; /* cost of reg,reg fld/fst */ | |
260 const int fp_load[3]; /* cost of loading FP register | |
261 in SFmode, DFmode and XFmode */ | |
262 const int fp_store[3]; /* cost of storing FP register | |
263 in SFmode, DFmode and XFmode */ | |
264 const int mmx_move; /* cost of moving MMX register. */ | |
265 const int mmx_load[2]; /* cost of loading MMX register | |
266 in SImode and DImode */ | |
267 const int mmx_store[2]; /* cost of storing MMX register | |
268 in SImode and DImode */ | |
269 const int xmm_move; /* cost of moving XMM register. */ | |
270 const int ymm_move; /* cost of moving XMM register. */ | |
271 const int zmm_move; /* cost of moving XMM register. */ | |
272 const int sse_load[5]; /* cost of loading SSE register | |
273 in 32bit, 64bit, 128bit, 256bit and 512bit */ | |
274 const int sse_store[5]; /* cost of storing SSE register | |
275 in SImode, DImode and TImode. */ | |
276 const int sse_to_integer; /* cost of moving SSE register to integer. */ | |
277 const int integer_to_sse; /* cost of moving integer register to SSE. */ | |
278 } hard_register; | |
279 | |
0 | 280 const int add; /* cost of an add instruction */ |
281 const int lea; /* cost of a lea instruction */ | |
282 const int shift_var; /* variable shift costs */ | |
283 const int shift_const; /* constant shift costs */ | |
284 const int mult_init[5]; /* cost of starting a multiply | |
285 in QImode, HImode, SImode, DImode, TImode*/ | |
286 const int mult_bit; /* cost of multiply per each bit set */ | |
287 const int divide[5]; /* cost of a divide/mod | |
288 in QImode, HImode, SImode, DImode, TImode*/ | |
289 int movsx; /* The cost of movsx operation. */ | |
290 int movzx; /* The cost of movzx operation. */ | |
291 const int large_insn; /* insns larger than this cost more */ | |
292 const int move_ratio; /* The threshold of number of scalar | |
293 memory-to-memory move insns. */ | |
145 | 294 const int clear_ratio; /* The threshold of number of scalar |
295 memory clearing insns. */ | |
0 | 296 const int int_load[3]; /* cost of loading integer registers |
297 in QImode, HImode and SImode relative | |
298 to reg-reg move (2). */ | |
299 const int int_store[3]; /* cost of storing integer register | |
300 in QImode, HImode and SImode */ | |
145 | 301 const int sse_load[5]; /* cost of loading SSE register |
302 in 32bit, 64bit, 128bit, 256bit and 512bit */ | |
303 const int sse_store[5]; /* cost of storing SSE register | |
304 in 32bit, 64bit, 128bit, 256bit and 512bit */ | |
305 const int sse_unaligned_load[5];/* cost of unaligned load. */ | |
306 const int sse_unaligned_store[5];/* cost of unaligned store. */ | |
111 | 307 const int xmm_move, ymm_move, /* cost of moving XMM and YMM register. */ |
308 zmm_move; | |
145 | 309 const int sse_to_integer; /* cost of moving SSE register to integer. */ |
111 | 310 const int gather_static, gather_per_elt; /* Cost of gather load is computed |
311 as static + per_item * nelts. */ | |
312 const int scatter_static, scatter_per_elt; /* Cost of gather store is | |
313 computed as static + per_item * nelts. */ | |
0 | 314 const int l1_cache_size; /* size of l1 cache, in kilobytes. */ |
315 const int l2_cache_size; /* size of l2 cache, in kilobytes. */ | |
316 const int prefetch_block; /* bytes moved to cache for prefetch. */ | |
317 const int simultaneous_prefetches; /* number of parallel prefetch | |
318 operations. */ | |
319 const int branch_cost; /* Default value for BRANCH_COST. */ | |
320 const int fadd; /* cost of FADD and FSUB instructions. */ | |
321 const int fmul; /* cost of FMUL instruction. */ | |
322 const int fdiv; /* cost of FDIV instruction. */ | |
323 const int fabs; /* cost of FABS instruction. */ | |
324 const int fchs; /* cost of FCHS instruction. */ | |
325 const int fsqrt; /* cost of FSQRT instruction. */ | |
326 /* Specify what algorithm | |
327 to use for stringops on unknown size. */ | |
111 | 328 const int sse_op; /* cost of cheap SSE instruction. */ |
329 const int addss; /* cost of ADDSS/SD SUBSS/SD instructions. */ | |
330 const int mulss; /* cost of MULSS instructions. */ | |
331 const int mulsd; /* cost of MULSD instructions. */ | |
332 const int fmass; /* cost of FMASS instructions. */ | |
333 const int fmasd; /* cost of FMASD instructions. */ | |
334 const int divss; /* cost of DIVSS instructions. */ | |
335 const int divsd; /* cost of DIVSD instructions. */ | |
336 const int sqrtss; /* cost of SQRTSS instructions. */ | |
337 const int sqrtsd; /* cost of SQRTSD instructions. */ | |
338 const int reassoc_int, reassoc_fp, reassoc_vec_int, reassoc_vec_fp; | |
339 /* Specify reassociation width for integer, | |
340 fp, vector integer and vector fp | |
341 operations. Generally should correspond | |
342 to number of instructions executed in | |
343 parallel. See also | |
344 ix86_reassociation_width. */ | |
345 struct stringop_algs *memcpy, *memset; | |
0 | 346 const int cond_taken_branch_cost; /* Cost of taken branch for vectorizer |
347 cost model. */ | |
348 const int cond_not_taken_branch_cost;/* Cost of not taken branch for | |
349 vectorizer cost model. */ | |
131 | 350 |
351 /* The "0:0:8" label alignment specified for some processors generates | |
352 secondary 8-byte alignment only for those label/jump/loop targets | |
353 which have primary alignment. */ | |
354 const char *const align_loop; /* Loop alignment. */ | |
355 const char *const align_jump; /* Jump alignment. */ | |
356 const char *const align_label; /* Label alignment. */ | |
357 const char *const align_func; /* Function alignment. */ | |
0 | 358 }; |
359 | |
360 extern const struct processor_costs *ix86_cost; | |
361 extern const struct processor_costs ix86_size_cost; | |
362 | |
363 #define ix86_cur_cost() \ | |
364 (optimize_insn_for_size_p () ? &ix86_size_cost: ix86_cost) | |
365 | |
366 /* Macros used in the machine description to test the flags. */ | |
367 | |
111 | 368 /* configure can arrange to change it. */ |
0 | 369 |
370 #ifndef TARGET_CPU_DEFAULT | |
111 | 371 #define TARGET_CPU_DEFAULT PROCESSOR_GENERIC |
0 | 372 #endif |
373 | |
374 #ifndef TARGET_FPMATH_DEFAULT | |
375 #define TARGET_FPMATH_DEFAULT \ | |
376 (TARGET_64BIT && TARGET_SSE ? FPMATH_SSE : FPMATH_387) | |
377 #endif | |
378 | |
111 | 379 #ifndef TARGET_FPMATH_DEFAULT_P |
380 #define TARGET_FPMATH_DEFAULT_P(x) \ | |
381 (TARGET_64BIT_P(x) && TARGET_SSE_P(x) ? FPMATH_SSE : FPMATH_387) | |
382 #endif | |
383 | |
384 /* If the i387 is disabled or -miamcu is used , then do not return | |
385 values in it. */ | |
386 #define TARGET_FLOAT_RETURNS_IN_80387 \ | |
387 (TARGET_FLOAT_RETURNS && TARGET_80387 && !TARGET_IAMCU) | |
388 #define TARGET_FLOAT_RETURNS_IN_80387_P(x) \ | |
389 (TARGET_FLOAT_RETURNS_P(x) && TARGET_80387_P(x) && !TARGET_IAMCU_P(x)) | |
0 | 390 |
391 /* 64bit Sledgehammer mode. For libgcc2 we make sure this is a | |
392 compile-time constant. */ | |
393 #ifdef IN_LIBGCC2 | |
394 #undef TARGET_64BIT | |
395 #ifdef __x86_64__ | |
396 #define TARGET_64BIT 1 | |
397 #else | |
398 #define TARGET_64BIT 0 | |
399 #endif | |
400 #else | |
401 #ifndef TARGET_BI_ARCH | |
402 #undef TARGET_64BIT | |
111 | 403 #undef TARGET_64BIT_P |
0 | 404 #if TARGET_64BIT_DEFAULT |
405 #define TARGET_64BIT 1 | |
111 | 406 #define TARGET_64BIT_P(x) 1 |
0 | 407 #else |
408 #define TARGET_64BIT 0 | |
111 | 409 #define TARGET_64BIT_P(x) 0 |
0 | 410 #endif |
411 #endif | |
412 #endif | |
413 | |
414 #define HAS_LONG_COND_BRANCH 1 | |
415 #define HAS_LONG_UNCOND_BRANCH 1 | |
416 | |
417 #define TARGET_386 (ix86_tune == PROCESSOR_I386) | |
418 #define TARGET_486 (ix86_tune == PROCESSOR_I486) | |
419 #define TARGET_PENTIUM (ix86_tune == PROCESSOR_PENTIUM) | |
420 #define TARGET_PENTIUMPRO (ix86_tune == PROCESSOR_PENTIUMPRO) | |
421 #define TARGET_GEODE (ix86_tune == PROCESSOR_GEODE) | |
422 #define TARGET_K6 (ix86_tune == PROCESSOR_K6) | |
423 #define TARGET_ATHLON (ix86_tune == PROCESSOR_ATHLON) | |
424 #define TARGET_PENTIUM4 (ix86_tune == PROCESSOR_PENTIUM4) | |
425 #define TARGET_K8 (ix86_tune == PROCESSOR_K8) | |
426 #define TARGET_ATHLON_K8 (TARGET_K8 || TARGET_ATHLON) | |
427 #define TARGET_NOCONA (ix86_tune == PROCESSOR_NOCONA) | |
111 | 428 #define TARGET_CORE2 (ix86_tune == PROCESSOR_CORE2) |
429 #define TARGET_NEHALEM (ix86_tune == PROCESSOR_NEHALEM) | |
430 #define TARGET_SANDYBRIDGE (ix86_tune == PROCESSOR_SANDYBRIDGE) | |
431 #define TARGET_HASWELL (ix86_tune == PROCESSOR_HASWELL) | |
432 #define TARGET_BONNELL (ix86_tune == PROCESSOR_BONNELL) | |
433 #define TARGET_SILVERMONT (ix86_tune == PROCESSOR_SILVERMONT) | |
131 | 434 #define TARGET_GOLDMONT (ix86_tune == PROCESSOR_GOLDMONT) |
435 #define TARGET_GOLDMONT_PLUS (ix86_tune == PROCESSOR_GOLDMONT_PLUS) | |
436 #define TARGET_TREMONT (ix86_tune == PROCESSOR_TREMONT) | |
111 | 437 #define TARGET_KNL (ix86_tune == PROCESSOR_KNL) |
438 #define TARGET_KNM (ix86_tune == PROCESSOR_KNM) | |
131 | 439 #define TARGET_SKYLAKE (ix86_tune == PROCESSOR_SKYLAKE) |
111 | 440 #define TARGET_SKYLAKE_AVX512 (ix86_tune == PROCESSOR_SKYLAKE_AVX512) |
131 | 441 #define TARGET_CANNONLAKE (ix86_tune == PROCESSOR_CANNONLAKE) |
442 #define TARGET_ICELAKE_CLIENT (ix86_tune == PROCESSOR_ICELAKE_CLIENT) | |
443 #define TARGET_ICELAKE_SERVER (ix86_tune == PROCESSOR_ICELAKE_SERVER) | |
145 | 444 #define TARGET_CASCADELAKE (ix86_tune == PROCESSOR_CASCADELAKE) |
445 #define TARGET_TIGERLAKE (ix86_tune == PROCESSOR_TIGERLAKE) | |
446 #define TARGET_COOPERLAKE (ix86_tune == PROCESSOR_COOPERLAKE) | |
111 | 447 #define TARGET_INTEL (ix86_tune == PROCESSOR_INTEL) |
448 #define TARGET_GENERIC (ix86_tune == PROCESSOR_GENERIC) | |
0 | 449 #define TARGET_AMDFAM10 (ix86_tune == PROCESSOR_AMDFAM10) |
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450 #define TARGET_BDVER1 (ix86_tune == PROCESSOR_BDVER1) |
111 | 451 #define TARGET_BDVER2 (ix86_tune == PROCESSOR_BDVER2) |
452 #define TARGET_BDVER3 (ix86_tune == PROCESSOR_BDVER3) | |
453 #define TARGET_BDVER4 (ix86_tune == PROCESSOR_BDVER4) | |
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454 #define TARGET_BTVER1 (ix86_tune == PROCESSOR_BTVER1) |
111 | 455 #define TARGET_BTVER2 (ix86_tune == PROCESSOR_BTVER2) |
456 #define TARGET_ZNVER1 (ix86_tune == PROCESSOR_ZNVER1) | |
145 | 457 #define TARGET_ZNVER2 (ix86_tune == PROCESSOR_ZNVER2) |
0 | 458 |
459 /* Feature tests against the various tunings. */ | |
460 enum ix86_tune_indices { | |
111 | 461 #undef DEF_TUNE |
462 #define DEF_TUNE(tune, name, selector) tune, | |
463 #include "x86-tune.def" | |
464 #undef DEF_TUNE | |
465 X86_TUNE_LAST | |
0 | 466 }; |
467 | |
468 extern unsigned char ix86_tune_features[X86_TUNE_LAST]; | |
469 | |
470 #define TARGET_USE_LEAVE ix86_tune_features[X86_TUNE_USE_LEAVE] | |
471 #define TARGET_PUSH_MEMORY ix86_tune_features[X86_TUNE_PUSH_MEMORY] | |
472 #define TARGET_ZERO_EXTEND_WITH_AND \ | |
473 ix86_tune_features[X86_TUNE_ZERO_EXTEND_WITH_AND] | |
474 #define TARGET_UNROLL_STRLEN ix86_tune_features[X86_TUNE_UNROLL_STRLEN] | |
475 #define TARGET_BRANCH_PREDICTION_HINTS \ | |
476 ix86_tune_features[X86_TUNE_BRANCH_PREDICTION_HINTS] | |
477 #define TARGET_DOUBLE_WITH_ADD ix86_tune_features[X86_TUNE_DOUBLE_WITH_ADD] | |
478 #define TARGET_USE_SAHF ix86_tune_features[X86_TUNE_USE_SAHF] | |
479 #define TARGET_MOVX ix86_tune_features[X86_TUNE_MOVX] | |
480 #define TARGET_PARTIAL_REG_STALL ix86_tune_features[X86_TUNE_PARTIAL_REG_STALL] | |
481 #define TARGET_PARTIAL_FLAG_REG_STALL \ | |
482 ix86_tune_features[X86_TUNE_PARTIAL_FLAG_REG_STALL] | |
111 | 483 #define TARGET_LCP_STALL \ |
484 ix86_tune_features[X86_TUNE_LCP_STALL] | |
0 | 485 #define TARGET_USE_HIMODE_FIOP ix86_tune_features[X86_TUNE_USE_HIMODE_FIOP] |
486 #define TARGET_USE_SIMODE_FIOP ix86_tune_features[X86_TUNE_USE_SIMODE_FIOP] | |
487 #define TARGET_USE_MOV0 ix86_tune_features[X86_TUNE_USE_MOV0] | |
488 #define TARGET_USE_CLTD ix86_tune_features[X86_TUNE_USE_CLTD] | |
489 #define TARGET_USE_XCHGB ix86_tune_features[X86_TUNE_USE_XCHGB] | |
490 #define TARGET_SPLIT_LONG_MOVES ix86_tune_features[X86_TUNE_SPLIT_LONG_MOVES] | |
491 #define TARGET_READ_MODIFY_WRITE ix86_tune_features[X86_TUNE_READ_MODIFY_WRITE] | |
492 #define TARGET_READ_MODIFY ix86_tune_features[X86_TUNE_READ_MODIFY] | |
493 #define TARGET_PROMOTE_QImode ix86_tune_features[X86_TUNE_PROMOTE_QIMODE] | |
494 #define TARGET_FAST_PREFIX ix86_tune_features[X86_TUNE_FAST_PREFIX] | |
495 #define TARGET_SINGLE_STRINGOP ix86_tune_features[X86_TUNE_SINGLE_STRINGOP] | |
111 | 496 #define TARGET_MISALIGNED_MOVE_STRING_PRO_EPILOGUES \ |
497 ix86_tune_features[X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES] | |
0 | 498 #define TARGET_QIMODE_MATH ix86_tune_features[X86_TUNE_QIMODE_MATH] |
499 #define TARGET_HIMODE_MATH ix86_tune_features[X86_TUNE_HIMODE_MATH] | |
500 #define TARGET_PROMOTE_QI_REGS ix86_tune_features[X86_TUNE_PROMOTE_QI_REGS] | |
501 #define TARGET_PROMOTE_HI_REGS ix86_tune_features[X86_TUNE_PROMOTE_HI_REGS] | |
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502 #define TARGET_SINGLE_POP ix86_tune_features[X86_TUNE_SINGLE_POP] |
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503 #define TARGET_DOUBLE_POP ix86_tune_features[X86_TUNE_DOUBLE_POP] |
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504 #define TARGET_SINGLE_PUSH ix86_tune_features[X86_TUNE_SINGLE_PUSH] |
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505 #define TARGET_DOUBLE_PUSH ix86_tune_features[X86_TUNE_DOUBLE_PUSH] |
0 | 506 #define TARGET_INTEGER_DFMODE_MOVES \ |
507 ix86_tune_features[X86_TUNE_INTEGER_DFMODE_MOVES] | |
508 #define TARGET_PARTIAL_REG_DEPENDENCY \ | |
509 ix86_tune_features[X86_TUNE_PARTIAL_REG_DEPENDENCY] | |
510 #define TARGET_SSE_PARTIAL_REG_DEPENDENCY \ | |
511 ix86_tune_features[X86_TUNE_SSE_PARTIAL_REG_DEPENDENCY] | |
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512 #define TARGET_SSE_UNALIGNED_LOAD_OPTIMAL \ |
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513 ix86_tune_features[X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL] |
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514 #define TARGET_SSE_UNALIGNED_STORE_OPTIMAL \ |
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515 ix86_tune_features[X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL] |
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516 #define TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL \ |
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517 ix86_tune_features[X86_TUNE_SSE_PACKED_SINGLE_INSN_OPTIMAL] |
0 | 518 #define TARGET_SSE_SPLIT_REGS ix86_tune_features[X86_TUNE_SSE_SPLIT_REGS] |
519 #define TARGET_SSE_TYPELESS_STORES \ | |
520 ix86_tune_features[X86_TUNE_SSE_TYPELESS_STORES] | |
521 #define TARGET_SSE_LOAD0_BY_PXOR ix86_tune_features[X86_TUNE_SSE_LOAD0_BY_PXOR] | |
522 #define TARGET_MEMORY_MISMATCH_STALL \ | |
523 ix86_tune_features[X86_TUNE_MEMORY_MISMATCH_STALL] | |
524 #define TARGET_PROLOGUE_USING_MOVE \ | |
525 ix86_tune_features[X86_TUNE_PROLOGUE_USING_MOVE] | |
526 #define TARGET_EPILOGUE_USING_MOVE \ | |
527 ix86_tune_features[X86_TUNE_EPILOGUE_USING_MOVE] | |
528 #define TARGET_SHIFT1 ix86_tune_features[X86_TUNE_SHIFT1] | |
529 #define TARGET_USE_FFREEP ix86_tune_features[X86_TUNE_USE_FFREEP] | |
111 | 530 #define TARGET_INTER_UNIT_MOVES_TO_VEC \ |
531 ix86_tune_features[X86_TUNE_INTER_UNIT_MOVES_TO_VEC] | |
532 #define TARGET_INTER_UNIT_MOVES_FROM_VEC \ | |
533 ix86_tune_features[X86_TUNE_INTER_UNIT_MOVES_FROM_VEC] | |
534 #define TARGET_INTER_UNIT_CONVERSIONS \ | |
0 | 535 ix86_tune_features[X86_TUNE_INTER_UNIT_CONVERSIONS] |
536 #define TARGET_FOUR_JUMP_LIMIT ix86_tune_features[X86_TUNE_FOUR_JUMP_LIMIT] | |
537 #define TARGET_SCHEDULE ix86_tune_features[X86_TUNE_SCHEDULE] | |
538 #define TARGET_USE_BT ix86_tune_features[X86_TUNE_USE_BT] | |
539 #define TARGET_USE_INCDEC ix86_tune_features[X86_TUNE_USE_INCDEC] | |
540 #define TARGET_PAD_RETURNS ix86_tune_features[X86_TUNE_PAD_RETURNS] | |
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541 #define TARGET_PAD_SHORT_FUNCTION \ |
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542 ix86_tune_features[X86_TUNE_PAD_SHORT_FUNCTION] |
0 | 543 #define TARGET_EXT_80387_CONSTANTS \ |
544 ix86_tune_features[X86_TUNE_EXT_80387_CONSTANTS] | |
545 #define TARGET_AVOID_VECTOR_DECODE \ | |
546 ix86_tune_features[X86_TUNE_AVOID_VECTOR_DECODE] | |
547 #define TARGET_TUNE_PROMOTE_HIMODE_IMUL \ | |
548 ix86_tune_features[X86_TUNE_PROMOTE_HIMODE_IMUL] | |
549 #define TARGET_SLOW_IMUL_IMM32_MEM \ | |
550 ix86_tune_features[X86_TUNE_SLOW_IMUL_IMM32_MEM] | |
551 #define TARGET_SLOW_IMUL_IMM8 ix86_tune_features[X86_TUNE_SLOW_IMUL_IMM8] | |
552 #define TARGET_MOVE_M1_VIA_OR ix86_tune_features[X86_TUNE_MOVE_M1_VIA_OR] | |
553 #define TARGET_NOT_UNPAIRABLE ix86_tune_features[X86_TUNE_NOT_UNPAIRABLE] | |
554 #define TARGET_NOT_VECTORMODE ix86_tune_features[X86_TUNE_NOT_VECTORMODE] | |
555 #define TARGET_USE_VECTOR_FP_CONVERTS \ | |
556 ix86_tune_features[X86_TUNE_USE_VECTOR_FP_CONVERTS] | |
557 #define TARGET_USE_VECTOR_CONVERTS \ | |
558 ix86_tune_features[X86_TUNE_USE_VECTOR_CONVERTS] | |
111 | 559 #define TARGET_SLOW_PSHUFB \ |
560 ix86_tune_features[X86_TUNE_SLOW_PSHUFB] | |
561 #define TARGET_AVOID_4BYTE_PREFIXES \ | |
562 ix86_tune_features[X86_TUNE_AVOID_4BYTE_PREFIXES] | |
131 | 563 #define TARGET_USE_GATHER \ |
564 ix86_tune_features[X86_TUNE_USE_GATHER] | |
111 | 565 #define TARGET_FUSE_CMP_AND_BRANCH_32 \ |
566 ix86_tune_features[X86_TUNE_FUSE_CMP_AND_BRANCH_32] | |
567 #define TARGET_FUSE_CMP_AND_BRANCH_64 \ | |
568 ix86_tune_features[X86_TUNE_FUSE_CMP_AND_BRANCH_64] | |
0 | 569 #define TARGET_FUSE_CMP_AND_BRANCH \ |
111 | 570 (TARGET_64BIT ? TARGET_FUSE_CMP_AND_BRANCH_64 \ |
571 : TARGET_FUSE_CMP_AND_BRANCH_32) | |
572 #define TARGET_FUSE_CMP_AND_BRANCH_SOFLAGS \ | |
573 ix86_tune_features[X86_TUNE_FUSE_CMP_AND_BRANCH_SOFLAGS] | |
574 #define TARGET_FUSE_ALU_AND_BRANCH \ | |
575 ix86_tune_features[X86_TUNE_FUSE_ALU_AND_BRANCH] | |
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576 #define TARGET_OPT_AGU ix86_tune_features[X86_TUNE_OPT_AGU] |
111 | 577 #define TARGET_AVOID_LEA_FOR_ADDR \ |
578 ix86_tune_features[X86_TUNE_AVOID_LEA_FOR_ADDR] | |
579 #define TARGET_SOFTWARE_PREFETCHING_BENEFICIAL \ | |
580 ix86_tune_features[X86_TUNE_SOFTWARE_PREFETCHING_BENEFICIAL] | |
145 | 581 #define TARGET_AVX256_SPLIT_REGS \ |
582 ix86_tune_features[X86_TUNE_AVX256_SPLIT_REGS] | |
111 | 583 #define TARGET_GENERAL_REGS_SSE_SPILL \ |
584 ix86_tune_features[X86_TUNE_GENERAL_REGS_SSE_SPILL] | |
585 #define TARGET_AVOID_MEM_OPND_FOR_CMOVE \ | |
586 ix86_tune_features[X86_TUNE_AVOID_MEM_OPND_FOR_CMOVE] | |
587 #define TARGET_SPLIT_MEM_OPND_FOR_FP_CONVERTS \ | |
588 ix86_tune_features[X86_TUNE_SPLIT_MEM_OPND_FOR_FP_CONVERTS] | |
589 #define TARGET_ADJUST_UNROLL \ | |
590 ix86_tune_features[X86_TUNE_ADJUST_UNROLL] | |
591 #define TARGET_AVOID_FALSE_DEP_FOR_BMI \ | |
592 ix86_tune_features[X86_TUNE_AVOID_FALSE_DEP_FOR_BMI] | |
593 #define TARGET_ONE_IF_CONV_INSN \ | |
594 ix86_tune_features[X86_TUNE_ONE_IF_CONV_INSN] | |
145 | 595 #define TARGET_USE_XCHG_FOR_ATOMIC_STORE \ |
596 ix86_tune_features[X86_TUNE_USE_XCHG_FOR_ATOMIC_STORE] | |
131 | 597 #define TARGET_EMIT_VZEROUPPER \ |
598 ix86_tune_features[X86_TUNE_EMIT_VZEROUPPER] | |
145 | 599 #define TARGET_EXPAND_ABS \ |
600 ix86_tune_features[X86_TUNE_EXPAND_ABS] | |
0 | 601 |
602 /* Feature tests against the various architecture variations. */ | |
603 enum ix86_arch_indices { | |
111 | 604 X86_ARCH_CMOV, |
0 | 605 X86_ARCH_CMPXCHG, |
606 X86_ARCH_CMPXCHG8B, | |
607 X86_ARCH_XADD, | |
608 X86_ARCH_BSWAP, | |
609 | |
610 X86_ARCH_LAST | |
611 }; | |
612 | |
613 extern unsigned char ix86_arch_features[X86_ARCH_LAST]; | |
614 | |
111 | 615 #define TARGET_CMOV ix86_arch_features[X86_ARCH_CMOV] |
0 | 616 #define TARGET_CMPXCHG ix86_arch_features[X86_ARCH_CMPXCHG] |
617 #define TARGET_CMPXCHG8B ix86_arch_features[X86_ARCH_CMPXCHG8B] | |
618 #define TARGET_XADD ix86_arch_features[X86_ARCH_XADD] | |
619 #define TARGET_BSWAP ix86_arch_features[X86_ARCH_BSWAP] | |
620 | |
111 | 621 /* For sane SSE instruction set generation we need fcomi instruction. |
622 It is safe to enable all CMOVE instructions. Also, RDRAND intrinsic | |
623 expands to a sequence that includes conditional move. */ | |
624 #define TARGET_CMOVE (TARGET_CMOV || TARGET_SSE || TARGET_RDRND) | |
625 | |
0 | 626 #define TARGET_FISTTP (TARGET_SSE3 && TARGET_80387) |
627 | |
111 | 628 extern unsigned char x86_prefetch_sse; |
0 | 629 #define TARGET_PREFETCH_SSE x86_prefetch_sse |
630 | |
631 #define ASSEMBLER_DIALECT (ix86_asm_dialect) | |
632 | |
633 #define TARGET_SSE_MATH ((ix86_fpmath & FPMATH_SSE) != 0) | |
634 #define TARGET_MIX_SSE_I387 \ | |
635 ((ix86_fpmath & (FPMATH_SSE | FPMATH_387)) == (FPMATH_SSE | FPMATH_387)) | |
636 | |
111 | 637 #define TARGET_HARD_SF_REGS (TARGET_80387 || TARGET_MMX || TARGET_SSE) |
638 #define TARGET_HARD_DF_REGS (TARGET_80387 || TARGET_SSE) | |
639 #define TARGET_HARD_XF_REGS (TARGET_80387) | |
640 | |
0 | 641 #define TARGET_GNU_TLS (ix86_tls_dialect == TLS_DIALECT_GNU) |
642 #define TARGET_GNU2_TLS (ix86_tls_dialect == TLS_DIALECT_GNU2) | |
643 #define TARGET_ANY_GNU_TLS (TARGET_GNU_TLS || TARGET_GNU2_TLS) | |
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644 #define TARGET_SUN_TLS 0 |
0 | 645 |
646 #ifndef TARGET_64BIT_DEFAULT | |
647 #define TARGET_64BIT_DEFAULT 0 | |
648 #endif | |
649 #ifndef TARGET_TLS_DIRECT_SEG_REFS_DEFAULT | |
650 #define TARGET_TLS_DIRECT_SEG_REFS_DEFAULT 0 | |
651 #endif | |
652 | |
111 | 653 #define TARGET_SSP_GLOBAL_GUARD (ix86_stack_protector_guard == SSP_GLOBAL) |
654 #define TARGET_SSP_TLS_GUARD (ix86_stack_protector_guard == SSP_TLS) | |
655 | |
0 | 656 /* Fence to use after loop using storent. */ |
657 | |
658 extern tree x86_mfence; | |
659 #define FENCE_FOLLOWING_MOVNT x86_mfence | |
660 | |
661 /* Once GDB has been enhanced to deal with functions without frame | |
662 pointers, we can change this to allow for elimination of | |
663 the frame pointer in leaf functions. */ | |
664 #define TARGET_DEFAULT 0 | |
665 | |
666 /* Extra bits to force. */ | |
667 #define TARGET_SUBTARGET_DEFAULT 0 | |
668 #define TARGET_SUBTARGET_ISA_DEFAULT 0 | |
669 | |
670 /* Extra bits to force on w/ 32-bit mode. */ | |
671 #define TARGET_SUBTARGET32_DEFAULT 0 | |
672 #define TARGET_SUBTARGET32_ISA_DEFAULT 0 | |
673 | |
674 /* Extra bits to force on w/ 64-bit mode. */ | |
675 #define TARGET_SUBTARGET64_DEFAULT 0 | |
145 | 676 /* Enable MMX, SSE and SSE2 by default. */ |
677 #define TARGET_SUBTARGET64_ISA_DEFAULT \ | |
678 (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE | OPTION_MASK_ISA_SSE2) | |
0 | 679 |
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680 /* Replace MACH-O, ifdefs by in-line tests, where possible. |
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681 (a) Macros defined in config/i386/darwin.h */ |
0 | 682 #define TARGET_MACHO 0 |
145 | 683 #define TARGET_MACHO_SYMBOL_STUBS 0 |
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684 #define MACHOPIC_ATT_STUB 0 |
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685 /* (b) Macros defined in config/darwin.h */ |
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686 #define MACHO_DYNAMIC_NO_PIC_P 0 |
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687 #define MACHOPIC_INDIRECT 0 |
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688 #define MACHOPIC_PURE 0 |
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689 |
111 | 690 /* For the RDOS */ |
691 #define TARGET_RDOS 0 | |
692 | |
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693 /* For the Windows 64-bit ABI. */ |
0 | 694 #define TARGET_64BIT_MS_ABI (TARGET_64BIT && ix86_cfun_abi () == MS_ABI) |
695 | |
111 | 696 /* For the Windows 32-bit ABI. */ |
697 #define TARGET_32BIT_MS_ABI (!TARGET_64BIT && ix86_cfun_abi () == MS_ABI) | |
698 | |
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699 /* This is re-defined by cygming.h. */ |
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700 #define TARGET_SEH 0 |
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701 |
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702 /* The default abi used by target. */ |
0 | 703 #define DEFAULT_ABI SYSV_ABI |
704 | |
111 | 705 /* The default TLS segment register used by target. */ |
706 #define DEFAULT_TLS_SEG_REG \ | |
707 (TARGET_64BIT ? ADDR_SPACE_SEG_FS : ADDR_SPACE_SEG_GS) | |
708 | |
0 | 709 /* Subtargets may reset this to 1 in order to enable 96-bit long double |
710 with the rounding mode forced to 53 bits. */ | |
711 #define TARGET_96_ROUND_53_LONG_DOUBLE 0 | |
712 | |
145 | 713 #ifndef SUBTARGET_DRIVER_SELF_SPECS |
714 # define SUBTARGET_DRIVER_SELF_SPECS "" | |
715 #endif | |
716 | |
717 #define DRIVER_SELF_SPECS SUBTARGET_DRIVER_SELF_SPECS | |
718 | |
0 | 719 /* -march=native handling only makes sense with compiler running on |
720 an x86 or x86_64 chip. If changing this condition, also change | |
721 the condition in driver-i386.c. */ | |
722 #if defined(__i386__) || defined(__x86_64__) | |
723 /* In driver-i386.c. */ | |
724 extern const char *host_detect_local_cpu (int argc, const char **argv); | |
725 #define EXTRA_SPEC_FUNCTIONS \ | |
726 { "local_cpu_detect", host_detect_local_cpu }, | |
727 #define HAVE_LOCAL_CPU_DETECT | |
728 #endif | |
729 | |
730 #if TARGET_64BIT_DEFAULT | |
731 #define OPT_ARCH64 "!m32" | |
732 #define OPT_ARCH32 "m32" | |
733 #else | |
111 | 734 #define OPT_ARCH64 "m64|mx32" |
735 #define OPT_ARCH32 "m64|mx32:;" | |
0 | 736 #endif |
737 | |
738 /* Support for configure-time defaults of some command line options. | |
739 The order here is important so that -march doesn't squash the | |
740 tune or cpu values. */ | |
741 #define OPTION_DEFAULT_SPECS \ | |
742 {"tune", "%{!mtune=*:%{!mcpu=*:%{!march=*:-mtune=%(VALUE)}}}" }, \ | |
743 {"tune_32", "%{" OPT_ARCH32 ":%{!mtune=*:%{!mcpu=*:%{!march=*:-mtune=%(VALUE)}}}}" }, \ | |
744 {"tune_64", "%{" OPT_ARCH64 ":%{!mtune=*:%{!mcpu=*:%{!march=*:-mtune=%(VALUE)}}}}" }, \ | |
745 {"cpu", "%{!mtune=*:%{!mcpu=*:%{!march=*:-mtune=%(VALUE)}}}" }, \ | |
746 {"cpu_32", "%{" OPT_ARCH32 ":%{!mtune=*:%{!mcpu=*:%{!march=*:-mtune=%(VALUE)}}}}" }, \ | |
747 {"cpu_64", "%{" OPT_ARCH64 ":%{!mtune=*:%{!mcpu=*:%{!march=*:-mtune=%(VALUE)}}}}" }, \ | |
748 {"arch", "%{!march=*:-march=%(VALUE)}"}, \ | |
749 {"arch_32", "%{" OPT_ARCH32 ":%{!march=*:-march=%(VALUE)}}"}, \ | |
750 {"arch_64", "%{" OPT_ARCH64 ":%{!march=*:-march=%(VALUE)}}"}, | |
751 | |
752 /* Specs for the compiler proper */ | |
753 | |
754 #ifndef CC1_CPU_SPEC | |
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755 #define CC1_CPU_SPEC_1 "" |
0 | 756 |
757 #ifndef HAVE_LOCAL_CPU_DETECT | |
758 #define CC1_CPU_SPEC CC1_CPU_SPEC_1 | |
759 #else | |
760 #define CC1_CPU_SPEC CC1_CPU_SPEC_1 \ | |
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761 "%{march=native:%>march=native %:local_cpu_detect(arch) \ |
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762 %{!mtune=*:%>mtune=native %:local_cpu_detect(tune)}} \ |
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763 %{mtune=native:%>mtune=native %:local_cpu_detect(tune)}" |
0 | 764 #endif |
765 #endif | |
766 | |
767 /* Target CPU builtins. */ | |
768 #define TARGET_CPU_CPP_BUILTINS() ix86_target_macros () | |
769 | |
770 /* Target Pragmas. */ | |
771 #define REGISTER_TARGET_PRAGMAS() ix86_register_pragmas () | |
772 | |
145 | 773 /* Target CPU versions for D. */ |
774 #define TARGET_D_CPU_VERSIONS ix86_d_target_versions | |
775 | |
0 | 776 #ifndef CC1_SPEC |
777 #define CC1_SPEC "%(cc1_cpu) " | |
778 #endif | |
779 | |
780 /* This macro defines names of additional specifications to put in the | |
781 specs that can be used in various specifications like CC1_SPEC. Its | |
782 definition is an initializer with a subgrouping for each command option. | |
783 | |
784 Each subgrouping contains a string constant, that defines the | |
785 specification name, and a string constant that used by the GCC driver | |
786 program. | |
787 | |
788 Do not define this macro if it does not need to do anything. */ | |
789 | |
790 #ifndef SUBTARGET_EXTRA_SPECS | |
791 #define SUBTARGET_EXTRA_SPECS | |
792 #endif | |
793 | |
794 #define EXTRA_SPECS \ | |
795 { "cc1_cpu", CC1_CPU_SPEC }, \ | |
796 SUBTARGET_EXTRA_SPECS | |
797 | |
798 | |
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799 /* Whether to allow x87 floating-point arithmetic on MODE (one of |
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800 SFmode, DFmode and XFmode) in the current excess precision |
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801 configuration. */ |
111 | 802 #define X87_ENABLE_ARITH(MODE) \ |
803 (flag_unsafe_math_optimizations \ | |
804 || flag_excess_precision == EXCESS_PRECISION_FAST \ | |
805 || (MODE) == XFmode) | |
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806 |
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807 /* Likewise, whether to allow direct conversions from integer mode |
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808 IMODE (HImode, SImode or DImode) to MODE. */ |
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809 #define X87_ENABLE_FLOAT(MODE, IMODE) \ |
111 | 810 (flag_unsafe_math_optimizations \ |
811 || flag_excess_precision == EXCESS_PRECISION_FAST \ | |
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812 || (MODE) == XFmode \ |
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813 || ((MODE) == DFmode && (IMODE) == SImode) \ |
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814 || (IMODE) == HImode) |
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815 |
0 | 816 /* target machine storage layout */ |
817 | |
818 #define SHORT_TYPE_SIZE 16 | |
819 #define INT_TYPE_SIZE 32 | |
111 | 820 #define LONG_TYPE_SIZE (TARGET_X32 ? 32 : BITS_PER_WORD) |
821 #define POINTER_SIZE (TARGET_X32 ? 32 : BITS_PER_WORD) | |
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822 #define LONG_LONG_TYPE_SIZE 64 |
0 | 823 #define FLOAT_TYPE_SIZE 32 |
824 #define DOUBLE_TYPE_SIZE 64 | |
111 | 825 #define LONG_DOUBLE_TYPE_SIZE \ |
826 (TARGET_LONG_DOUBLE_64 ? 64 : (TARGET_LONG_DOUBLE_128 ? 128 : 80)) | |
827 | |
828 #define WIDEST_HARDWARE_FP_SIZE 80 | |
0 | 829 |
830 #if defined (TARGET_BI_ARCH) || TARGET_64BIT_DEFAULT | |
831 #define MAX_BITS_PER_WORD 64 | |
832 #else | |
833 #define MAX_BITS_PER_WORD 32 | |
834 #endif | |
835 | |
836 /* Define this if most significant byte of a word is the lowest numbered. */ | |
837 /* That is true on the 80386. */ | |
838 | |
839 #define BITS_BIG_ENDIAN 0 | |
840 | |
841 /* Define this if most significant byte of a word is the lowest numbered. */ | |
842 /* That is not true on the 80386. */ | |
843 #define BYTES_BIG_ENDIAN 0 | |
844 | |
845 /* Define this if most significant word of a multiword number is the lowest | |
846 numbered. */ | |
847 /* Not true for 80386 */ | |
848 #define WORDS_BIG_ENDIAN 0 | |
849 | |
850 /* Width of a word, in units (bytes). */ | |
851 #define UNITS_PER_WORD (TARGET_64BIT ? 8 : 4) | |
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852 |
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853 #ifndef IN_LIBGCC2 |
0 | 854 #define MIN_UNITS_PER_WORD 4 |
855 #endif | |
856 | |
857 /* Allocation boundary (in *bits*) for storing arguments in argument list. */ | |
858 #define PARM_BOUNDARY BITS_PER_WORD | |
859 | |
860 /* Boundary (in *bits*) on which stack pointer should be aligned. */ | |
145 | 861 #define STACK_BOUNDARY (TARGET_64BIT_MS_ABI ? 128 : BITS_PER_WORD) |
0 | 862 |
863 /* Stack boundary of the main function guaranteed by OS. */ | |
864 #define MAIN_STACK_BOUNDARY (TARGET_64BIT ? 128 : 32) | |
865 | |
866 /* Minimum stack boundary. */ | |
111 | 867 #define MIN_STACK_BOUNDARY BITS_PER_WORD |
0 | 868 |
869 /* Boundary (in *bits*) on which the stack pointer prefers to be | |
870 aligned; the compiler cannot rely on having this alignment. */ | |
871 #define PREFERRED_STACK_BOUNDARY ix86_preferred_stack_boundary | |
872 | |
873 /* It should be MIN_STACK_BOUNDARY. But we set it to 128 bits for | |
874 both 32bit and 64bit, to support codes that need 128 bit stack | |
875 alignment for SSE instructions, but can't realign the stack. */ | |
111 | 876 #define PREFERRED_STACK_BOUNDARY_DEFAULT \ |
877 (TARGET_IAMCU ? MIN_STACK_BOUNDARY : 128) | |
0 | 878 |
879 /* 1 if -mstackrealign should be turned on by default. It will | |
880 generate an alternate prologue and epilogue that realigns the | |
881 runtime stack if nessary. This supports mixing codes that keep a | |
882 4-byte aligned stack, as specified by i386 psABI, with codes that | |
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883 need a 16-byte aligned stack, as required by SSE instructions. */ |
0 | 884 #define STACK_REALIGN_DEFAULT 0 |
885 | |
886 /* Boundary (in *bits*) on which the incoming stack is aligned. */ | |
887 #define INCOMING_STACK_BOUNDARY ix86_incoming_stack_boundary | |
888 | |
111 | 889 /* According to Windows x64 software convention, the maximum stack allocatable |
890 in the prologue is 4G - 8 bytes. Furthermore, there is a limited set of | |
891 instructions allowed to adjust the stack pointer in the epilog, forcing the | |
892 use of frame pointer for frames larger than 2 GB. This theorical limit | |
893 is reduced by 256, an over-estimated upper bound for the stack use by the | |
894 prologue. | |
895 We define only one threshold for both the prolog and the epilog. When the | |
896 frame size is larger than this threshold, we allocate the area to save SSE | |
897 regs, then save them, and then allocate the remaining. There is no SEH | |
898 unwind info for this later allocation. */ | |
899 #define SEH_MAX_FRAME_SIZE ((2U << 30) - 256) | |
900 | |
0 | 901 /* Target OS keeps a vector-aligned (128-bit, 16-byte) stack. This is |
902 mandatory for the 64-bit ABI, and may or may not be true for other | |
903 operating systems. */ | |
904 #define TARGET_KEEPS_VECTOR_ALIGNED_STACK TARGET_64BIT | |
905 | |
906 /* Minimum allocation boundary for the code of a function. */ | |
907 #define FUNCTION_BOUNDARY 8 | |
908 | |
909 /* C++ stores the virtual bit in the lowest bit of function pointers. */ | |
910 #define TARGET_PTRMEMFUNC_VBIT_LOCATION ptrmemfunc_vbit_in_pfn | |
911 | |
912 /* Minimum size in bits of the largest boundary to which any | |
913 and all fundamental data types supported by the hardware | |
914 might need to be aligned. No data type wants to be aligned | |
915 rounder than this. | |
916 | |
917 Pentium+ prefers DFmode values to be aligned to 64 bit boundary | |
111 | 918 and Pentium Pro XFmode values at 128 bit boundaries. |
919 | |
920 When increasing the maximum, also update | |
921 TARGET_ABSOLUTE_BIGGEST_ALIGNMENT. */ | |
922 | |
923 #define BIGGEST_ALIGNMENT \ | |
924 (TARGET_IAMCU ? 32 : (TARGET_AVX512F ? 512 : (TARGET_AVX ? 256 : 128))) | |
0 | 925 |
926 /* Maximum stack alignment. */ | |
927 #define MAX_STACK_ALIGNMENT MAX_OFILE_ALIGNMENT | |
928 | |
929 /* Alignment value for attribute ((aligned)). It is a constant since | |
930 it is the part of the ABI. We shouldn't change it with -mavx. */ | |
111 | 931 #define ATTRIBUTE_ALIGNED_VALUE (TARGET_IAMCU ? 32 : 128) |
0 | 932 |
933 /* Decide whether a variable of mode MODE should be 128 bit aligned. */ | |
934 #define ALIGN_MODE_128(MODE) \ | |
935 ((MODE) == XFmode || SSE_REG_MODE_P (MODE)) | |
936 | |
937 /* The published ABIs say that doubles should be aligned on word | |
938 boundaries, so lower the alignment for structure fields unless | |
939 -malign-double is set. */ | |
940 | |
941 /* ??? Blah -- this macro is used directly by libobjc. Since it | |
942 supports no vector modes, cut out the complexity and fall back | |
943 on BIGGEST_FIELD_ALIGNMENT. */ | |
944 #ifdef IN_TARGET_LIBS | |
945 #ifdef __x86_64__ | |
946 #define BIGGEST_FIELD_ALIGNMENT 128 | |
947 #else | |
948 #define BIGGEST_FIELD_ALIGNMENT 32 | |
949 #endif | |
950 #else | |
111 | 951 #define ADJUST_FIELD_ALIGN(FIELD, TYPE, COMPUTED) \ |
952 x86_field_alignment ((TYPE), (COMPUTED)) | |
0 | 953 #endif |
954 | |
955 /* If defined, a C expression to compute the alignment for a static | |
956 variable. TYPE is the data type, and ALIGN is the alignment that | |
957 the object would ordinarily have. The value of this macro is used | |
958 instead of that alignment to align the object. | |
959 | |
960 If this macro is not defined, then ALIGN is used. | |
961 | |
962 One use of this macro is to increase alignment of medium-size | |
963 data to make it all fit in fewer cache lines. Another is to | |
964 cause character arrays to be word-aligned so that `strcpy' calls | |
965 that copy constants to character arrays can be done inline. */ | |
966 | |
111 | 967 #define DATA_ALIGNMENT(TYPE, ALIGN) \ |
968 ix86_data_alignment ((TYPE), (ALIGN), true) | |
969 | |
970 /* Similar to DATA_ALIGNMENT, but for the cases where the ABI mandates | |
971 some alignment increase, instead of optimization only purposes. E.g. | |
972 AMD x86-64 psABI says that variables with array type larger than 15 bytes | |
973 must be aligned to 16 byte boundaries. | |
974 | |
975 If this macro is not defined, then ALIGN is used. */ | |
976 | |
977 #define DATA_ABI_ALIGNMENT(TYPE, ALIGN) \ | |
978 ix86_data_alignment ((TYPE), (ALIGN), false) | |
0 | 979 |
980 /* If defined, a C expression to compute the alignment for a local | |
981 variable. TYPE is the data type, and ALIGN is the alignment that | |
982 the object would ordinarily have. The value of this macro is used | |
983 instead of that alignment to align the object. | |
984 | |
985 If this macro is not defined, then ALIGN is used. | |
986 | |
987 One use of this macro is to increase alignment of medium-size | |
988 data to make it all fit in fewer cache lines. */ | |
989 | |
990 #define LOCAL_ALIGNMENT(TYPE, ALIGN) \ | |
991 ix86_local_alignment ((TYPE), VOIDmode, (ALIGN)) | |
992 | |
993 /* If defined, a C expression to compute the alignment for stack slot. | |
994 TYPE is the data type, MODE is the widest mode available, and ALIGN | |
995 is the alignment that the slot would ordinarily have. The value of | |
996 this macro is used instead of that alignment to align the slot. | |
997 | |
998 If this macro is not defined, then ALIGN is used when TYPE is NULL, | |
999 Otherwise, LOCAL_ALIGNMENT will be used. | |
1000 | |
1001 One use of this macro is to set alignment of stack slot to the | |
1002 maximum alignment of all possible modes which the slot may have. */ | |
1003 | |
1004 #define STACK_SLOT_ALIGNMENT(TYPE, MODE, ALIGN) \ | |
1005 ix86_local_alignment ((TYPE), (MODE), (ALIGN)) | |
1006 | |
1007 /* If defined, a C expression to compute the alignment for a local | |
1008 variable DECL. | |
1009 | |
1010 If this macro is not defined, then | |
1011 LOCAL_ALIGNMENT (TREE_TYPE (DECL), DECL_ALIGN (DECL)) will be used. | |
1012 | |
1013 One use of this macro is to increase alignment of medium-size | |
1014 data to make it all fit in fewer cache lines. */ | |
1015 | |
1016 #define LOCAL_DECL_ALIGNMENT(DECL) \ | |
1017 ix86_local_alignment ((DECL), VOIDmode, DECL_ALIGN (DECL)) | |
1018 | |
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1019 /* If defined, a C expression to compute the minimum required alignment |
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1020 for dynamic stack realignment purposes for EXP (a TYPE or DECL), |
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1021 MODE, assuming normal alignment ALIGN. |
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1022 |
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1023 If this macro is not defined, then (ALIGN) will be used. */ |
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1024 |
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1025 #define MINIMUM_ALIGNMENT(EXP, MODE, ALIGN) \ |
111 | 1026 ix86_minimum_alignment ((EXP), (MODE), (ALIGN)) |
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1027 |
0 | 1028 |
1029 /* Set this nonzero if move instructions will actually fail to work | |
1030 when given unaligned data. */ | |
1031 #define STRICT_ALIGNMENT 0 | |
1032 | |
1033 /* If bit field type is int, don't let it cross an int, | |
1034 and give entire struct the alignment of an int. */ | |
1035 /* Required on the 386 since it doesn't have bit-field insns. */ | |
1036 #define PCC_BITFIELD_TYPE_MATTERS 1 | |
1037 | |
1038 /* Standard register usage. */ | |
1039 | |
1040 /* This processor has special stack-like registers. See reg-stack.c | |
1041 for details. */ | |
1042 | |
1043 #define STACK_REGS | |
1044 | |
111 | 1045 #define IS_STACK_MODE(MODE) \ |
1046 (X87_FLOAT_MODE_P (MODE) \ | |
1047 && (!(SSE_FLOAT_MODE_P (MODE) && TARGET_SSE_MATH) \ | |
1048 || TARGET_MIX_SSE_I387)) | |
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1049 |
0 | 1050 /* Number of actual hardware registers. |
1051 The hardware registers are assigned numbers for the compiler | |
1052 from 0 to just below FIRST_PSEUDO_REGISTER. | |
1053 All registers that the compiler knows about must be given numbers, | |
1054 even those that are not normally considered general registers. | |
1055 | |
1056 In the 80386 we give the 8 general purpose registers the numbers 0-7. | |
1057 We number the floating point registers 8-15. | |
1058 Note that registers 0-7 can be accessed as a short or int, | |
1059 while only 0-3 may be used with byte `mov' instructions. | |
1060 | |
1061 Reg 16 does not correspond to any hardware register, but instead | |
1062 appears in the RTL as an argument pointer prior to reload, and is | |
1063 eliminated during reloading in favor of either the stack or frame | |
1064 pointer. */ | |
1065 | |
111 | 1066 #define FIRST_PSEUDO_REGISTER FIRST_PSEUDO_REG |
0 | 1067 |
1068 /* Number of hardware registers that go into the DWARF-2 unwind info. | |
1069 If not defined, equals FIRST_PSEUDO_REGISTER. */ | |
1070 | |
1071 #define DWARF_FRAME_REGISTERS 17 | |
1072 | |
1073 /* 1 for registers that have pervasive standard uses | |
1074 and are not available for the register allocator. | |
1075 On the 80386, the stack pointer is such, as is the arg pointer. | |
1076 | |
111 | 1077 REX registers are disabled for 32bit targets in |
1078 TARGET_CONDITIONAL_REGISTER_USAGE. */ | |
1079 | |
0 | 1080 #define FIXED_REGISTERS \ |
1081 /*ax,dx,cx,bx,si,di,bp,sp,st,st1,st2,st3,st4,st5,st6,st7*/ \ | |
1082 { 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, \ | |
131 | 1083 /*arg,flags,fpsr,frame*/ \ |
1084 1, 1, 1, 1, \ | |
0 | 1085 /*xmm0,xmm1,xmm2,xmm3,xmm4,xmm5,xmm6,xmm7*/ \ |
1086 0, 0, 0, 0, 0, 0, 0, 0, \ | |
1087 /* mm0, mm1, mm2, mm3, mm4, mm5, mm6, mm7*/ \ | |
1088 0, 0, 0, 0, 0, 0, 0, 0, \ | |
1089 /* r8, r9, r10, r11, r12, r13, r14, r15*/ \ | |
111 | 1090 0, 0, 0, 0, 0, 0, 0, 0, \ |
0 | 1091 /*xmm8,xmm9,xmm10,xmm11,xmm12,xmm13,xmm14,xmm15*/ \ |
111 | 1092 0, 0, 0, 0, 0, 0, 0, 0, \ |
1093 /*xmm16,xmm17,xmm18,xmm19,xmm20,xmm21,xmm22,xmm23*/ \ | |
1094 0, 0, 0, 0, 0, 0, 0, 0, \ | |
1095 /*xmm24,xmm25,xmm26,xmm27,xmm28,xmm29,xmm30,xmm31*/ \ | |
1096 0, 0, 0, 0, 0, 0, 0, 0, \ | |
1097 /* k0, k1, k2, k3, k4, k5, k6, k7*/ \ | |
131 | 1098 0, 0, 0, 0, 0, 0, 0, 0 } |
0 | 1099 |
1100 /* 1 for registers not available across function calls. | |
1101 These must include the FIXED_REGISTERS and also any | |
1102 registers that can be used without being saved. | |
1103 The latter must include the registers where values are returned | |
1104 and the register where structure-value addresses are passed. | |
1105 Aside from that, you can include as many other registers as you like. | |
1106 | |
111 | 1107 Value is set to 1 if the register is call used unconditionally. |
1108 Bit one is set if the register is call used on TARGET_32BIT ABI. | |
1109 Bit two is set if the register is call used on TARGET_64BIT ABI. | |
1110 Bit three is set if the register is call used on TARGET_64BIT_MS_ABI. | |
1111 | |
1112 Proper values are computed in TARGET_CONDITIONAL_REGISTER_USAGE. */ | |
1113 | |
1114 #define CALL_USED_REGISTERS_MASK(IS_64BIT_MS_ABI) \ | |
1115 ((IS_64BIT_MS_ABI) ? (1 << 3) : TARGET_64BIT ? (1 << 2) : (1 << 1)) | |
1116 | |
0 | 1117 #define CALL_USED_REGISTERS \ |
1118 /*ax,dx,cx,bx,si,di,bp,sp,st,st1,st2,st3,st4,st5,st6,st7*/ \ | |
111 | 1119 { 1, 1, 1, 0, 4, 4, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, \ |
131 | 1120 /*arg,flags,fpsr,frame*/ \ |
1121 1, 1, 1, 1, \ | |
0 | 1122 /*xmm0,xmm1,xmm2,xmm3,xmm4,xmm5,xmm6,xmm7*/ \ |
111 | 1123 1, 1, 1, 1, 1, 1, 6, 6, \ |
0 | 1124 /* mm0, mm1, mm2, mm3, mm4, mm5, mm6, mm7*/ \ |
1125 1, 1, 1, 1, 1, 1, 1, 1, \ | |
1126 /* r8, r9, r10, r11, r12, r13, r14, r15*/ \ | |
1127 1, 1, 1, 1, 2, 2, 2, 2, \ | |
1128 /*xmm8,xmm9,xmm10,xmm11,xmm12,xmm13,xmm14,xmm15*/ \ | |
111 | 1129 6, 6, 6, 6, 6, 6, 6, 6, \ |
1130 /*xmm16,xmm17,xmm18,xmm19,xmm20,xmm21,xmm22,xmm23*/ \ | |
145 | 1131 1, 1, 1, 1, 1, 1, 1, 1, \ |
111 | 1132 /*xmm24,xmm25,xmm26,xmm27,xmm28,xmm29,xmm30,xmm31*/ \ |
145 | 1133 1, 1, 1, 1, 1, 1, 1, 1, \ |
111 | 1134 /* k0, k1, k2, k3, k4, k5, k6, k7*/ \ |
131 | 1135 1, 1, 1, 1, 1, 1, 1, 1 } |
0 | 1136 |
1137 /* Order in which to allocate registers. Each register must be | |
1138 listed once, even those in FIXED_REGISTERS. List frame pointer | |
1139 late and fixed registers last. Note that, in general, we prefer | |
1140 registers listed in CALL_USED_REGISTERS, keeping the others | |
1141 available for storage of persistent values. | |
1142 | |
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1143 The ADJUST_REG_ALLOC_ORDER actually overwrite the order, |
0 | 1144 so this is just empty initializer for array. */ |
1145 | |
131 | 1146 #define REG_ALLOC_ORDER \ |
1147 { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, \ | |
1148 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, \ | |
1149 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, \ | |
1150 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, \ | |
1151 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75 } | |
0 | 1152 |
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1153 /* ADJUST_REG_ALLOC_ORDER is a macro which permits reg_alloc_order |
0 | 1154 to be rearranged based on a particular function. When using sse math, |
1155 we want to allocate SSE before x87 registers and vice versa. */ | |
1156 | |
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1157 #define ADJUST_REG_ALLOC_ORDER x86_order_regs_for_local_alloc () |
0 | 1158 |
1159 | |
1160 #define OVERRIDE_ABI_FORMAT(FNDECL) ix86_call_abi_override (FNDECL) | |
1161 | |
1162 #define HARD_REGNO_NREGS_HAS_PADDING(REGNO, MODE) \ | |
111 | 1163 (TARGET_128BIT_LONG_DOUBLE && !TARGET_64BIT \ |
1164 && GENERAL_REGNO_P (REGNO) \ | |
1165 && ((MODE) == XFmode || (MODE) == XCmode)) | |
0 | 1166 |
1167 #define HARD_REGNO_NREGS_WITH_PADDING(REGNO, MODE) ((MODE) == XFmode ? 4 : 8) | |
1168 | |
145 | 1169 #define REGMODE_NATURAL_SIZE(MODE) ix86_regmode_natural_size (MODE) |
1170 | |
0 | 1171 #define VALID_AVX256_REG_MODE(MODE) \ |
1172 ((MODE) == V32QImode || (MODE) == V16HImode || (MODE) == V8SImode \ | |
111 | 1173 || (MODE) == V4DImode || (MODE) == V2TImode || (MODE) == V8SFmode \ |
1174 || (MODE) == V4DFmode) | |
1175 | |
1176 #define VALID_AVX256_REG_OR_OI_MODE(MODE) \ | |
1177 (VALID_AVX256_REG_MODE (MODE) || (MODE) == OImode) | |
1178 | |
1179 #define VALID_AVX512F_SCALAR_MODE(MODE) \ | |
1180 ((MODE) == DImode || (MODE) == DFmode || (MODE) == SImode \ | |
1181 || (MODE) == SFmode) | |
1182 | |
1183 #define VALID_AVX512F_REG_MODE(MODE) \ | |
1184 ((MODE) == V8DImode || (MODE) == V8DFmode || (MODE) == V64QImode \ | |
1185 || (MODE) == V16SImode || (MODE) == V16SFmode || (MODE) == V32HImode \ | |
1186 || (MODE) == V4TImode) | |
1187 | |
131 | 1188 #define VALID_AVX512F_REG_OR_XI_MODE(MODE) \ |
1189 (VALID_AVX512F_REG_MODE (MODE) || (MODE) == XImode) | |
1190 | |
111 | 1191 #define VALID_AVX512VL_128_REG_MODE(MODE) \ |
1192 ((MODE) == V2DImode || (MODE) == V2DFmode || (MODE) == V16QImode \ | |
1193 || (MODE) == V4SImode || (MODE) == V4SFmode || (MODE) == V8HImode \ | |
1194 || (MODE) == TFmode || (MODE) == V1TImode) | |
0 | 1195 |
1196 #define VALID_SSE2_REG_MODE(MODE) \ | |
1197 ((MODE) == V16QImode || (MODE) == V8HImode || (MODE) == V2DFmode \ | |
1198 || (MODE) == V2DImode || (MODE) == DFmode) | |
1199 | |
1200 #define VALID_SSE_REG_MODE(MODE) \ | |
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1201 ((MODE) == V1TImode || (MODE) == TImode \ |
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1202 || (MODE) == V4SFmode || (MODE) == V4SImode \ |
0 | 1203 || (MODE) == SFmode || (MODE) == TFmode) |
1204 | |
1205 #define VALID_MMX_REG_MODE_3DNOW(MODE) \ | |
1206 ((MODE) == V2SFmode || (MODE) == SFmode) | |
1207 | |
1208 #define VALID_MMX_REG_MODE(MODE) \ | |
145 | 1209 ((MODE) == V1DImode || (MODE) == DImode \ |
0 | 1210 || (MODE) == V2SImode || (MODE) == SImode \ |
1211 || (MODE) == V4HImode || (MODE) == V8QImode) | |
1212 | |
111 | 1213 #define VALID_MASK_REG_MODE(MODE) ((MODE) == HImode || (MODE) == QImode) |
1214 | |
1215 #define VALID_MASK_AVX512BW_MODE(MODE) ((MODE) == SImode || (MODE) == DImode) | |
1216 | |
0 | 1217 #define VALID_DFP_MODE_P(MODE) \ |
1218 ((MODE) == SDmode || (MODE) == DDmode || (MODE) == TDmode) | |
1219 | |
1220 #define VALID_FP_MODE_P(MODE) \ | |
1221 ((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode \ | |
1222 || (MODE) == SCmode || (MODE) == DCmode || (MODE) == XCmode) \ | |
1223 | |
1224 #define VALID_INT_MODE_P(MODE) \ | |
1225 ((MODE) == QImode || (MODE) == HImode || (MODE) == SImode \ | |
1226 || (MODE) == DImode \ | |
1227 || (MODE) == CQImode || (MODE) == CHImode || (MODE) == CSImode \ | |
1228 || (MODE) == CDImode \ | |
1229 || (TARGET_64BIT && ((MODE) == TImode || (MODE) == CTImode \ | |
1230 || (MODE) == TFmode || (MODE) == TCmode))) | |
1231 | |
1232 /* Return true for modes passed in SSE registers. */ | |
1233 #define SSE_REG_MODE_P(MODE) \ | |
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1234 ((MODE) == V1TImode || (MODE) == TImode || (MODE) == V16QImode \ |
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1235 || (MODE) == TFmode || (MODE) == V8HImode || (MODE) == V2DFmode \ |
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1236 || (MODE) == V2DImode || (MODE) == V4SFmode || (MODE) == V4SImode \ |
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1237 || (MODE) == V32QImode || (MODE) == V16HImode || (MODE) == V8SImode \ |
111 | 1238 || (MODE) == V4DImode || (MODE) == V8SFmode || (MODE) == V4DFmode \ |
1239 || (MODE) == V2TImode || (MODE) == V8DImode || (MODE) == V64QImode \ | |
1240 || (MODE) == V16SImode || (MODE) == V32HImode || (MODE) == V8DFmode \ | |
1241 || (MODE) == V16SFmode) | |
1242 | |
1243 #define X87_FLOAT_MODE_P(MODE) \ | |
1244 (TARGET_80387 && ((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode)) | |
1245 | |
1246 #define SSE_FLOAT_MODE_P(MODE) \ | |
1247 ((TARGET_SSE && (MODE) == SFmode) || (TARGET_SSE2 && (MODE) == DFmode)) | |
1248 | |
1249 #define FMA4_VEC_FLOAT_MODE_P(MODE) \ | |
1250 (TARGET_FMA4 && ((MODE) == V4SFmode || (MODE) == V2DFmode \ | |
1251 || (MODE) == V8SFmode || (MODE) == V4DFmode)) | |
0 | 1252 |
1253 /* It is possible to write patterns to move flags; but until someone | |
1254 does it, */ | |
1255 #define AVOID_CCMODE_COPIES | |
1256 | |
1257 /* Specify the modes required to caller save a given hard regno. | |
1258 We do this on i386 to prevent flags from being saved at all. | |
1259 | |
1260 Kill any attempts to combine saving of modes. */ | |
1261 | |
1262 #define HARD_REGNO_CALLER_SAVE_MODE(REGNO, NREGS, MODE) \ | |
1263 (CC_REGNO_P (REGNO) ? VOIDmode \ | |
1264 : (MODE) == VOIDmode && (NREGS) != 1 ? VOIDmode \ | |
145 | 1265 : (MODE) == VOIDmode ? choose_hard_reg_mode ((REGNO), (NREGS), NULL) \ |
111 | 1266 : (MODE) == HImode && !((GENERAL_REGNO_P (REGNO) \ |
1267 && TARGET_PARTIAL_REG_STALL) \ | |
1268 || MASK_REGNO_P (REGNO)) ? SImode \ | |
1269 : (MODE) == QImode && !(ANY_QI_REGNO_P (REGNO) \ | |
1270 || MASK_REGNO_P (REGNO)) ? SImode \ | |
0 | 1271 : (MODE)) |
1272 | |
1273 /* Specify the registers used for certain standard purposes. | |
1274 The values of these macros are register numbers. */ | |
1275 | |
1276 /* on the 386 the pc register is %eip, and is not usable as a general | |
1277 register. The ordinary mov instructions won't work */ | |
1278 /* #define PC_REGNUM */ | |
1279 | |
111 | 1280 /* Base register for access to arguments of the function. */ |
1281 #define ARG_POINTER_REGNUM ARGP_REG | |
1282 | |
0 | 1283 /* Register to use for pushing function arguments. */ |
111 | 1284 #define STACK_POINTER_REGNUM SP_REG |
0 | 1285 |
1286 /* Base register for access to local variables of the function. */ | |
111 | 1287 #define FRAME_POINTER_REGNUM FRAME_REG |
1288 #define HARD_FRAME_POINTER_REGNUM BP_REG | |
1289 | |
1290 #define FIRST_INT_REG AX_REG | |
1291 #define LAST_INT_REG SP_REG | |
1292 | |
1293 #define FIRST_QI_REG AX_REG | |
1294 #define LAST_QI_REG BX_REG | |
0 | 1295 |
1296 /* First & last stack-like regs */ | |
111 | 1297 #define FIRST_STACK_REG ST0_REG |
1298 #define LAST_STACK_REG ST7_REG | |
1299 | |
1300 #define FIRST_SSE_REG XMM0_REG | |
1301 #define LAST_SSE_REG XMM7_REG | |
1302 | |
1303 #define FIRST_MMX_REG MM0_REG | |
1304 #define LAST_MMX_REG MM7_REG | |
1305 | |
1306 #define FIRST_REX_INT_REG R8_REG | |
1307 #define LAST_REX_INT_REG R15_REG | |
1308 | |
1309 #define FIRST_REX_SSE_REG XMM8_REG | |
1310 #define LAST_REX_SSE_REG XMM15_REG | |
1311 | |
1312 #define FIRST_EXT_REX_SSE_REG XMM16_REG | |
1313 #define LAST_EXT_REX_SSE_REG XMM31_REG | |
1314 | |
1315 #define FIRST_MASK_REG MASK0_REG | |
1316 #define LAST_MASK_REG MASK7_REG | |
1317 | |
0 | 1318 /* Override this in other tm.h files to cope with various OS lossage |
1319 requiring a frame pointer. */ | |
1320 #ifndef SUBTARGET_FRAME_POINTER_REQUIRED | |
1321 #define SUBTARGET_FRAME_POINTER_REQUIRED 0 | |
1322 #endif | |
1323 | |
1324 /* Make sure we can access arbitrary call frames. */ | |
1325 #define SETUP_FRAME_ADDRESSES() ix86_setup_frame_addresses () | |
1326 | |
1327 /* Register to hold the addressing base for position independent | |
1328 code access to data items. We don't use PIC pointer for 64bit | |
1329 mode. Define the regnum to dummy value to prevent gcc from | |
1330 pessimizing code dealing with EBX. | |
1331 | |
1332 To avoid clobbering a call-saved register unnecessarily, we renumber | |
1333 the pic register when possible. The change is visible after the | |
1334 prologue has been emitted. */ | |
1335 | |
111 | 1336 #define REAL_PIC_OFFSET_TABLE_REGNUM (TARGET_64BIT ? R15_REG : BX_REG) |
1337 | |
1338 #define PIC_OFFSET_TABLE_REGNUM \ | |
1339 (ix86_use_pseudo_pic_reg () \ | |
1340 ? (pic_offset_table_rtx \ | |
1341 ? INVALID_REGNUM \ | |
1342 : REAL_PIC_OFFSET_TABLE_REGNUM) \ | |
1343 : INVALID_REGNUM) | |
0 | 1344 |
1345 #define GOT_SYMBOL_NAME "_GLOBAL_OFFSET_TABLE_" | |
1346 | |
1347 /* This is overridden by <cygwin.h>. */ | |
1348 #define MS_AGGREGATE_RETURN 0 | |
1349 | |
1350 #define KEEP_AGGREGATE_RETURN_POINTER 0 | |
1351 | |
1352 /* Define the classes of registers for register constraints in the | |
1353 machine description. Also define ranges of constants. | |
1354 | |
1355 One of the classes must always be named ALL_REGS and include all hard regs. | |
1356 If there is more than one class, another class must be named NO_REGS | |
1357 and contain no registers. | |
1358 | |
1359 The name GENERAL_REGS must be the name of a class (or an alias for | |
1360 another name such as ALL_REGS). This is the class of registers | |
1361 that is allowed by "g" or "r" in a register constraint. | |
1362 Also, registers outside this class are allocated only when | |
1363 instructions express preferences for them. | |
1364 | |
1365 The classes must be numbered in nondecreasing order; that is, | |
1366 a larger-numbered class must never be contained completely | |
111 | 1367 in a smaller-numbered class. This is why CLOBBERED_REGS class |
1368 is listed early, even though in 64-bit mode it contains more | |
1369 registers than just %eax, %ecx, %edx. | |
0 | 1370 |
1371 For any two classes, it is very desirable that there be another | |
1372 class that represents their union. | |
1373 | |
131 | 1374 The flags and fpsr registers are in no class. */ |
0 | 1375 |
1376 enum reg_class | |
1377 { | |
1378 NO_REGS, | |
1379 AREG, DREG, CREG, BREG, SIREG, DIREG, | |
1380 AD_REGS, /* %eax/%edx for DImode */ | |
111 | 1381 CLOBBERED_REGS, /* call-clobbered integer registers */ |
0 | 1382 Q_REGS, /* %eax %ebx %ecx %edx */ |
1383 NON_Q_REGS, /* %esi %edi %ebp %esp */ | |
111 | 1384 TLS_GOTBASE_REGS, /* %ebx %ecx %edx %esi %edi %ebp */ |
0 | 1385 INDEX_REGS, /* %eax %ebx %ecx %edx %esi %edi %ebp */ |
1386 LEGACY_REGS, /* %eax %ebx %ecx %edx %esi %edi %ebp %esp */ | |
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1387 GENERAL_REGS, /* %eax %ebx %ecx %edx %esi %edi %ebp %esp |
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1388 %r8 %r9 %r10 %r11 %r12 %r13 %r14 %r15 */ |
0 | 1389 FP_TOP_REG, FP_SECOND_REG, /* %st(0) %st(1) */ |
1390 FLOAT_REGS, | |
1391 SSE_FIRST_REG, | |
111 | 1392 NO_REX_SSE_REGS, |
0 | 1393 SSE_REGS, |
111 | 1394 ALL_SSE_REGS, |
0 | 1395 MMX_REGS, |
1396 FLOAT_SSE_REGS, | |
1397 FLOAT_INT_REGS, | |
1398 INT_SSE_REGS, | |
1399 FLOAT_INT_SSE_REGS, | |
111 | 1400 MASK_REGS, |
131 | 1401 ALL_MASK_REGS, |
1402 ALL_REGS, | |
1403 LIM_REG_CLASSES | |
0 | 1404 }; |
1405 | |
1406 #define N_REG_CLASSES ((int) LIM_REG_CLASSES) | |
1407 | |
1408 #define INTEGER_CLASS_P(CLASS) \ | |
1409 reg_class_subset_p ((CLASS), GENERAL_REGS) | |
1410 #define FLOAT_CLASS_P(CLASS) \ | |
1411 reg_class_subset_p ((CLASS), FLOAT_REGS) | |
1412 #define SSE_CLASS_P(CLASS) \ | |
111 | 1413 reg_class_subset_p ((CLASS), ALL_SSE_REGS) |
0 | 1414 #define MMX_CLASS_P(CLASS) \ |
1415 ((CLASS) == MMX_REGS) | |
111 | 1416 #define MASK_CLASS_P(CLASS) \ |
131 | 1417 reg_class_subset_p ((CLASS), ALL_MASK_REGS) |
0 | 1418 #define MAYBE_INTEGER_CLASS_P(CLASS) \ |
1419 reg_classes_intersect_p ((CLASS), GENERAL_REGS) | |
1420 #define MAYBE_FLOAT_CLASS_P(CLASS) \ | |
1421 reg_classes_intersect_p ((CLASS), FLOAT_REGS) | |
1422 #define MAYBE_SSE_CLASS_P(CLASS) \ | |
111 | 1423 reg_classes_intersect_p ((CLASS), ALL_SSE_REGS) |
0 | 1424 #define MAYBE_MMX_CLASS_P(CLASS) \ |
111 | 1425 reg_classes_intersect_p ((CLASS), MMX_REGS) |
1426 #define MAYBE_MASK_CLASS_P(CLASS) \ | |
131 | 1427 reg_classes_intersect_p ((CLASS), ALL_MASK_REGS) |
0 | 1428 |
1429 #define Q_CLASS_P(CLASS) \ | |
1430 reg_class_subset_p ((CLASS), Q_REGS) | |
1431 | |
111 | 1432 #define MAYBE_NON_Q_CLASS_P(CLASS) \ |
1433 reg_classes_intersect_p ((CLASS), NON_Q_REGS) | |
1434 | |
0 | 1435 /* Give names of register classes as strings for dump file. */ |
1436 | |
1437 #define REG_CLASS_NAMES \ | |
1438 { "NO_REGS", \ | |
1439 "AREG", "DREG", "CREG", "BREG", \ | |
1440 "SIREG", "DIREG", \ | |
1441 "AD_REGS", \ | |
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1442 "CLOBBERED_REGS", \ |
0 | 1443 "Q_REGS", "NON_Q_REGS", \ |
111 | 1444 "TLS_GOTBASE_REGS", \ |
0 | 1445 "INDEX_REGS", \ |
1446 "LEGACY_REGS", \ | |
1447 "GENERAL_REGS", \ | |
1448 "FP_TOP_REG", "FP_SECOND_REG", \ | |
1449 "FLOAT_REGS", \ | |
1450 "SSE_FIRST_REG", \ | |
111 | 1451 "NO_REX_SSE_REGS", \ |
0 | 1452 "SSE_REGS", \ |
111 | 1453 "ALL_SSE_REGS", \ |
0 | 1454 "MMX_REGS", \ |
1455 "FLOAT_SSE_REGS", \ | |
1456 "FLOAT_INT_REGS", \ | |
1457 "INT_SSE_REGS", \ | |
1458 "FLOAT_INT_SSE_REGS", \ | |
111 | 1459 "MASK_REGS", \ |
131 | 1460 "ALL_MASK_REGS", \ |
0 | 1461 "ALL_REGS" } |
1462 | |
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1463 /* Define which registers fit in which classes. This is an initializer |
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1464 for a vector of HARD_REG_SET of length N_REG_CLASSES. |
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1465 |
111 | 1466 Note that CLOBBERED_REGS are calculated by |
1467 TARGET_CONDITIONAL_REGISTER_USAGE. */ | |
1468 | |
131 | 1469 #define REG_CLASS_CONTENTS \ |
1470 { { 0x0, 0x0, 0x0 }, /* NO_REGS */ \ | |
1471 { 0x01, 0x0, 0x0 }, /* AREG */ \ | |
1472 { 0x02, 0x0, 0x0 }, /* DREG */ \ | |
1473 { 0x04, 0x0, 0x0 }, /* CREG */ \ | |
1474 { 0x08, 0x0, 0x0 }, /* BREG */ \ | |
1475 { 0x10, 0x0, 0x0 }, /* SIREG */ \ | |
1476 { 0x20, 0x0, 0x0 }, /* DIREG */ \ | |
1477 { 0x03, 0x0, 0x0 }, /* AD_REGS */ \ | |
1478 { 0x07, 0x0, 0x0 }, /* CLOBBERED_REGS */ \ | |
1479 { 0x0f, 0x0, 0x0 }, /* Q_REGS */ \ | |
1480 { 0x900f0, 0x0, 0x0 }, /* NON_Q_REGS */ \ | |
1481 { 0x7e, 0xff0, 0x0 }, /* TLS_GOTBASE_REGS */ \ | |
1482 { 0x7f, 0xff0, 0x0 }, /* INDEX_REGS */ \ | |
1483 { 0x900ff, 0x0, 0x0 }, /* LEGACY_REGS */ \ | |
1484 { 0x900ff, 0xff0, 0x0 }, /* GENERAL_REGS */ \ | |
1485 { 0x100, 0x0, 0x0 }, /* FP_TOP_REG */ \ | |
1486 { 0x200, 0x0, 0x0 }, /* FP_SECOND_REG */ \ | |
1487 { 0xff00, 0x0, 0x0 }, /* FLOAT_REGS */ \ | |
1488 { 0x100000, 0x0, 0x0 }, /* SSE_FIRST_REG */ \ | |
1489 { 0xff00000, 0x0, 0x0 }, /* NO_REX_SSE_REGS */ \ | |
1490 { 0xff00000, 0xff000, 0x0 }, /* SSE_REGS */ \ | |
1491 { 0xff00000, 0xfffff000, 0xf }, /* ALL_SSE_REGS */ \ | |
1492 { 0xf0000000, 0xf, 0x0 }, /* MMX_REGS */ \ | |
1493 { 0xff0ff00, 0xfffff000, 0xf }, /* FLOAT_SSE_REGS */ \ | |
1494 { 0x9ffff, 0xff0, 0x0 }, /* FLOAT_INT_REGS */ \ | |
1495 { 0xff900ff, 0xfffffff0, 0xf }, /* INT_SSE_REGS */ \ | |
1496 { 0xff9ffff, 0xfffffff0, 0xf }, /* FLOAT_INT_SSE_REGS */ \ | |
1497 { 0x0, 0x0, 0xfe0 }, /* MASK_REGS */ \ | |
1498 { 0x0, 0x0, 0xff0 }, /* ALL_MASK_REGS */ \ | |
1499 { 0xffffffff, 0xffffffff, 0xfff } /* ALL_REGS */ \ | |
0 | 1500 } |
1501 | |
1502 /* The same information, inverted: | |
1503 Return the class number of the smallest class containing | |
1504 reg number REGNO. This could be a conditional expression | |
1505 or could index an array. */ | |
1506 | |
111 | 1507 #define REGNO_REG_CLASS(REGNO) (regclass_map[(REGNO)]) |
0 | 1508 |
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1509 /* When this hook returns true for MODE, the compiler allows |
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1510 registers explicitly used in the rtl to be used as spill registers |
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1511 but prevents the compiler from extending the lifetime of these |
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1512 registers. */ |
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1513 #define TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P hook_bool_mode_true |
0 | 1514 |
111 | 1515 #define QI_REG_P(X) (REG_P (X) && QI_REGNO_P (REGNO (X))) |
1516 #define QI_REGNO_P(N) IN_RANGE ((N), FIRST_QI_REG, LAST_QI_REG) | |
1517 | |
1518 #define LEGACY_INT_REG_P(X) (REG_P (X) && LEGACY_INT_REGNO_P (REGNO (X))) | |
1519 #define LEGACY_INT_REGNO_P(N) (IN_RANGE ((N), FIRST_INT_REG, LAST_INT_REG)) | |
1520 | |
1521 #define REX_INT_REG_P(X) (REG_P (X) && REX_INT_REGNO_P (REGNO (X))) | |
0 | 1522 #define REX_INT_REGNO_P(N) \ |
1523 IN_RANGE ((N), FIRST_REX_INT_REG, LAST_REX_INT_REG) | |
111 | 1524 |
1525 #define GENERAL_REG_P(X) (REG_P (X) && GENERAL_REGNO_P (REGNO (X))) | |
1526 #define GENERAL_REGNO_P(N) \ | |
1527 (LEGACY_INT_REGNO_P (N) || REX_INT_REGNO_P (N)) | |
1528 | |
1529 #define ANY_QI_REG_P(X) (REG_P (X) && ANY_QI_REGNO_P (REGNO (X))) | |
1530 #define ANY_QI_REGNO_P(N) \ | |
1531 (TARGET_64BIT ? GENERAL_REGNO_P (N) : QI_REGNO_P (N)) | |
1532 | |
1533 #define STACK_REG_P(X) (REG_P (X) && STACK_REGNO_P (REGNO (X))) | |
1534 #define STACK_REGNO_P(N) IN_RANGE ((N), FIRST_STACK_REG, LAST_STACK_REG) | |
1535 | |
1536 #define SSE_REG_P(X) (REG_P (X) && SSE_REGNO_P (REGNO (X))) | |
0 | 1537 #define SSE_REGNO_P(N) \ |
1538 (IN_RANGE ((N), FIRST_SSE_REG, LAST_SSE_REG) \ | |
111 | 1539 || REX_SSE_REGNO_P (N) \ |
1540 || EXT_REX_SSE_REGNO_P (N)) | |
0 | 1541 |
1542 #define REX_SSE_REGNO_P(N) \ | |
1543 IN_RANGE ((N), FIRST_REX_SSE_REG, LAST_REX_SSE_REG) | |
1544 | |
111 | 1545 #define EXT_REX_SSE_REG_P(X) (REG_P (X) && EXT_REX_SSE_REGNO_P (REGNO (X))) |
1546 | |
1547 #define EXT_REX_SSE_REGNO_P(N) \ | |
1548 IN_RANGE ((N), FIRST_EXT_REX_SSE_REG, LAST_EXT_REX_SSE_REG) | |
1549 | |
1550 #define ANY_FP_REG_P(X) (REG_P (X) && ANY_FP_REGNO_P (REGNO (X))) | |
1551 #define ANY_FP_REGNO_P(N) (STACK_REGNO_P (N) || SSE_REGNO_P (N)) | |
1552 | |
1553 #define MASK_REG_P(X) (REG_P (X) && MASK_REGNO_P (REGNO (X))) | |
1554 #define MASK_REGNO_P(N) IN_RANGE ((N), FIRST_MASK_REG, LAST_MASK_REG) | |
145 | 1555 #define MASK_PAIR_REGNO_P(N) ((((N) - FIRST_MASK_REG) & 1) == 0) |
111 | 1556 |
1557 #define MMX_REG_P(X) (REG_P (X) && MMX_REGNO_P (REGNO (X))) | |
0 | 1558 #define MMX_REGNO_P(N) IN_RANGE ((N), FIRST_MMX_REG, LAST_MMX_REG) |
1559 | |
1560 #define CC_REG_P(X) (REG_P (X) && CC_REGNO_P (REGNO (X))) | |
131 | 1561 #define CC_REGNO_P(X) ((X) == FLAGS_REG) |
111 | 1562 |
1563 #define MOD4_SSE_REG_P(X) (REG_P (X) && MOD4_SSE_REGNO_P (REGNO (X))) | |
1564 #define MOD4_SSE_REGNO_P(N) ((N) == XMM0_REG \ | |
1565 || (N) == XMM4_REG \ | |
1566 || (N) == XMM8_REG \ | |
1567 || (N) == XMM12_REG \ | |
1568 || (N) == XMM16_REG \ | |
1569 || (N) == XMM20_REG \ | |
1570 || (N) == XMM24_REG \ | |
1571 || (N) == XMM28_REG) | |
1572 | |
1573 /* First floating point reg */ | |
1574 #define FIRST_FLOAT_REG FIRST_STACK_REG | |
1575 #define STACK_TOP_P(X) (REG_P (X) && REGNO (X) == FIRST_FLOAT_REG) | |
1576 | |
131 | 1577 #define GET_SSE_REGNO(N) \ |
1578 ((N) < 8 ? FIRST_SSE_REG + (N) \ | |
1579 : (N) < 16 ? FIRST_REX_SSE_REG + (N) - 8 \ | |
1580 : FIRST_EXT_REX_SSE_REG + (N) - 16) | |
111 | 1581 |
0 | 1582 /* The class value for index registers, and the one for base regs. */ |
1583 | |
1584 #define INDEX_REG_CLASS INDEX_REGS | |
1585 #define BASE_REG_CLASS GENERAL_REGS | |
1586 | |
1587 /* Stack layout; function entry, exit and calling. */ | |
1588 | |
1589 /* Define this if pushing a word on the stack | |
1590 makes the stack pointer a smaller address. */ | |
111 | 1591 #define STACK_GROWS_DOWNWARD 1 |
0 | 1592 |
1593 /* Define this to nonzero if the nominal address of the stack frame | |
1594 is at the high-address end of the local variables; | |
1595 that is, each additional local variable allocated | |
1596 goes at a more negative offset in the frame. */ | |
1597 #define FRAME_GROWS_DOWNWARD 1 | |
1598 | |
131 | 1599 #define PUSH_ROUNDING(BYTES) ix86_push_rounding (BYTES) |
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1600 |
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1601 /* If defined, the maximum amount of space required for outgoing arguments |
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1602 will be computed and placed into the variable `crtl->outgoing_args_size'. |
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1603 No space will be pushed onto the stack for each call; instead, the |
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1604 function prologue should increase the stack frame size by this amount. |
111 | 1605 |
1606 In 32bit mode enabling argument accumulation results in about 5% code size | |
1607 growth because move instructions are less compact than push. In 64bit | |
1608 mode the difference is less drastic but visible. | |
1609 | |
1610 FIXME: Unlike earlier implementations, the size of unwind info seems to | |
1611 actually grow with accumulation. Is that because accumulated args | |
1612 unwind info became unnecesarily bloated? | |
1613 | |
1614 With the 64-bit MS ABI, we can generate correct code with or without | |
1615 accumulated args, but because of OUTGOING_REG_PARM_STACK_SPACE the code | |
1616 generated without accumulated args is terrible. | |
1617 | |
1618 If stack probes are required, the space used for large function | |
1619 arguments on the stack must also be probed, so enable | |
1620 -maccumulate-outgoing-args so this happens in the prologue. | |
1621 | |
1622 We must use argument accumulation in interrupt function if stack | |
1623 may be realigned to avoid DRAP. */ | |
0 | 1624 |
1625 #define ACCUMULATE_OUTGOING_ARGS \ | |
111 | 1626 ((TARGET_ACCUMULATE_OUTGOING_ARGS \ |
1627 && optimize_function_for_speed_p (cfun)) \ | |
1628 || (cfun->machine->func_type != TYPE_NORMAL \ | |
1629 && crtl->stack_realign_needed) \ | |
1630 || TARGET_STACK_PROBE \ | |
1631 || TARGET_64BIT_MS_ABI \ | |
1632 || (TARGET_MACHO && crtl->profile)) | |
0 | 1633 |
1634 /* If defined, a C expression whose value is nonzero when we want to use PUSH | |
1635 instructions to pass outgoing arguments. */ | |
1636 | |
1637 #define PUSH_ARGS (TARGET_PUSH_ARGS && !ACCUMULATE_OUTGOING_ARGS) | |
1638 | |
1639 /* We want the stack and args grow in opposite directions, even if | |
1640 PUSH_ARGS is 0. */ | |
1641 #define PUSH_ARGS_REVERSED 1 | |
1642 | |
1643 /* Offset of first parameter from the argument pointer register value. */ | |
1644 #define FIRST_PARM_OFFSET(FNDECL) 0 | |
1645 | |
1646 /* Define this macro if functions should assume that stack space has been | |
1647 allocated for arguments even when their values are passed in registers. | |
1648 | |
1649 The value of this macro is the size, in bytes, of the area reserved for | |
1650 arguments passed in registers for the function represented by FNDECL. | |
1651 | |
1652 This space can be allocated by the caller, or be a part of the | |
1653 machine-dependent stack frame: `OUTGOING_REG_PARM_STACK_SPACE' says | |
1654 which. */ | |
1655 #define REG_PARM_STACK_SPACE(FNDECL) ix86_reg_parm_stack_space (FNDECL) | |
1656 | |
1657 #define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) \ | |
111 | 1658 (TARGET_64BIT && ix86_function_type_abi (FNTYPE) == MS_ABI) |
0 | 1659 |
1660 /* Define how to find the value returned by a library function | |
1661 assuming the value has mode MODE. */ | |
1662 | |
1663 #define LIBCALL_VALUE(MODE) ix86_libcall_value (MODE) | |
1664 | |
1665 /* Define the size of the result block used for communication between | |
1666 untyped_call and untyped_return. The block contains a DImode value | |
1667 followed by the block used by fnsave and frstor. */ | |
1668 | |
1669 #define APPLY_RESULT_SIZE (8+108) | |
1670 | |
1671 /* 1 if N is a possible register number for function argument passing. */ | |
1672 #define FUNCTION_ARG_REGNO_P(N) ix86_function_arg_regno_p (N) | |
1673 | |
1674 /* Define a data type for recording info about an argument list | |
1675 during the scan of that argument list. This data type should | |
1676 hold all necessary information about the function itself | |
1677 and about the args processed so far, enough to enable macros | |
1678 such as FUNCTION_ARG to determine where the next arg should go. */ | |
1679 | |
1680 typedef struct ix86_args { | |
1681 int words; /* # words passed so far */ | |
1682 int nregs; /* # registers available for passing */ | |
1683 int regno; /* next available register number */ | |
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1684 int fastcall; /* fastcall or thiscall calling convention |
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1685 is used */ |
0 | 1686 int sse_words; /* # sse words passed so far */ |
1687 int sse_nregs; /* # sse registers available for passing */ | |
111 | 1688 int warn_avx512f; /* True when we want to warn |
1689 about AVX512F ABI. */ | |
0 | 1690 int warn_avx; /* True when we want to warn about AVX ABI. */ |
1691 int warn_sse; /* True when we want to warn about SSE ABI. */ | |
1692 int warn_mmx; /* True when we want to warn about MMX ABI. */ | |
131 | 1693 int warn_empty; /* True when we want to warn about empty classes |
1694 passing ABI change. */ | |
0 | 1695 int sse_regno; /* next available sse register number */ |
1696 int mmx_words; /* # mmx words passed so far */ | |
1697 int mmx_nregs; /* # mmx registers available for passing */ | |
1698 int mmx_regno; /* next available mmx register number */ | |
1699 int maybe_vaarg; /* true for calls to possibly vardic fncts. */ | |
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1700 int caller; /* true if it is caller. */ |
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1701 int float_in_sse; /* Set to 1 or 2 for 32bit targets if |
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1702 SFmode/DFmode arguments should be passed |
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1703 in SSE registers. Otherwise 0. */ |
111 | 1704 int stdarg; /* Set to 1 if function is stdarg. */ |
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1705 enum calling_abi call_abi; /* Set to SYSV_ABI for sysv abi. Otherwise |
0 | 1706 MS_ABI for ms abi. */ |
111 | 1707 tree decl; /* Callee decl. */ |
0 | 1708 } CUMULATIVE_ARGS; |
1709 | |
1710 /* Initialize a variable CUM of type CUMULATIVE_ARGS | |
1711 for a call to a function whose data type is FNTYPE. | |
1712 For a library call, FNTYPE is 0. */ | |
1713 | |
1714 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, FNDECL, N_NAMED_ARGS) \ | |
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1715 init_cumulative_args (&(CUM), (FNTYPE), (LIBNAME), (FNDECL), \ |
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1716 (N_NAMED_ARGS) != -1) |
0 | 1717 |
1718 /* Output assembler code to FILE to increment profiler label # LABELNO | |
1719 for profiling a function entry. */ | |
1720 | |
111 | 1721 #define FUNCTION_PROFILER(FILE, LABELNO) \ |
1722 x86_function_profiler ((FILE), (LABELNO)) | |
0 | 1723 |
1724 #define MCOUNT_NAME "_mcount" | |
1725 | |
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1726 #define MCOUNT_NAME_BEFORE_PROLOGUE "__fentry__" |
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1727 |
0 | 1728 #define PROFILE_COUNT_REGISTER "edx" |
1729 | |
1730 /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, | |
1731 the stack pointer does not matter. The value is tested only in | |
1732 functions that have frame pointers. | |
1733 No definition is equivalent to always zero. */ | |
1734 /* Note on the 386 it might be more efficient not to define this since | |
1735 we have to restore it ourselves from the frame pointer, in order to | |
1736 use pop */ | |
1737 | |
1738 #define EXIT_IGNORE_STACK 1 | |
1739 | |
111 | 1740 /* Define this macro as a C expression that is nonzero for registers |
1741 used by the epilogue or the `return' pattern. */ | |
1742 | |
1743 #define EPILOGUE_USES(REGNO) ix86_epilogue_uses (REGNO) | |
1744 | |
0 | 1745 /* Output assembler code for a block containing the constant parts |
1746 of a trampoline, leaving space for the variable parts. */ | |
1747 | |
1748 /* On the 386, the trampoline contains two instructions: | |
1749 mov #STATIC,ecx | |
1750 jmp FUNCTION | |
1751 The trampoline is generated entirely at runtime. The operand of JMP | |
1752 is the address of FUNCTION relative to the instruction following the | |
1753 JMP (which is 5 bytes long). */ | |
1754 | |
1755 /* Length in units of the trampoline for entering a nested function. */ | |
1756 | |
131 | 1757 #define TRAMPOLINE_SIZE (TARGET_64BIT ? 28 : 14) |
0 | 1758 |
1759 /* Definitions for register eliminations. | |
1760 | |
1761 This is an array of structures. Each structure initializes one pair | |
1762 of eliminable registers. The "from" register number is given first, | |
1763 followed by "to". Eliminations of the same "from" register are listed | |
1764 in order of preference. | |
1765 | |
1766 There are two registers that can always be eliminated on the i386. | |
1767 The frame pointer and the arg pointer can be replaced by either the | |
1768 hard frame pointer or to the stack pointer, depending upon the | |
1769 circumstances. The hard frame pointer is not used before reload and | |
1770 so it is not eligible for elimination. */ | |
1771 | |
1772 #define ELIMINABLE_REGS \ | |
1773 {{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ | |
1774 { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \ | |
1775 { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ | |
1776 { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}} \ | |
1777 | |
1778 /* Define the offset between two registers, one to be eliminated, and the other | |
1779 its replacement, at the start of a routine. */ | |
1780 | |
1781 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ | |
1782 ((OFFSET) = ix86_initial_elimination_offset ((FROM), (TO))) | |
1783 | |
1784 /* Addressing modes, and classification of registers for them. */ | |
1785 | |
1786 /* Macros to check register numbers against specific register classes. */ | |
1787 | |
1788 /* These assume that REGNO is a hard or pseudo reg number. | |
1789 They give nonzero only if REGNO is a hard reg of the suitable class | |
1790 or a pseudo reg currently allocated to a suitable hard reg. | |
1791 Since they use reg_renumber, they are safe only once reg_renumber | |
111 | 1792 has been allocated, which happens in reginfo.c during register |
1793 allocation. */ | |
0 | 1794 |
1795 #define REGNO_OK_FOR_INDEX_P(REGNO) \ | |
1796 ((REGNO) < STACK_POINTER_REGNUM \ | |
1797 || REX_INT_REGNO_P (REGNO) \ | |
1798 || (unsigned) reg_renumber[(REGNO)] < STACK_POINTER_REGNUM \ | |
1799 || REX_INT_REGNO_P ((unsigned) reg_renumber[(REGNO)])) | |
1800 | |
1801 #define REGNO_OK_FOR_BASE_P(REGNO) \ | |
1802 (GENERAL_REGNO_P (REGNO) \ | |
1803 || (REGNO) == ARG_POINTER_REGNUM \ | |
1804 || (REGNO) == FRAME_POINTER_REGNUM \ | |
1805 || GENERAL_REGNO_P ((unsigned) reg_renumber[(REGNO)])) | |
1806 | |
1807 /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx | |
1808 and check its validity for a certain class. | |
1809 We have two alternate definitions for each of them. | |
1810 The usual definition accepts all pseudo regs; the other rejects | |
1811 them unless they have been allocated suitable hard regs. | |
1812 The symbol REG_OK_STRICT causes the latter definition to be used. | |
1813 | |
1814 Most source files want to accept pseudo regs in the hope that | |
1815 they will get allocated to the class that the insn wants them to be in. | |
1816 Source files for reload pass need to be strict. | |
1817 After reload, it makes no difference, since pseudo regs have | |
1818 been eliminated by then. */ | |
1819 | |
1820 | |
1821 /* Non strict versions, pseudos are ok. */ | |
1822 #define REG_OK_FOR_INDEX_NONSTRICT_P(X) \ | |
1823 (REGNO (X) < STACK_POINTER_REGNUM \ | |
1824 || REX_INT_REGNO_P (REGNO (X)) \ | |
1825 || REGNO (X) >= FIRST_PSEUDO_REGISTER) | |
1826 | |
1827 #define REG_OK_FOR_BASE_NONSTRICT_P(X) \ | |
1828 (GENERAL_REGNO_P (REGNO (X)) \ | |
1829 || REGNO (X) == ARG_POINTER_REGNUM \ | |
1830 || REGNO (X) == FRAME_POINTER_REGNUM \ | |
1831 || REGNO (X) >= FIRST_PSEUDO_REGISTER) | |
1832 | |
1833 /* Strict versions, hard registers only */ | |
1834 #define REG_OK_FOR_INDEX_STRICT_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X)) | |
1835 #define REG_OK_FOR_BASE_STRICT_P(X) REGNO_OK_FOR_BASE_P (REGNO (X)) | |
1836 | |
1837 #ifndef REG_OK_STRICT | |
1838 #define REG_OK_FOR_INDEX_P(X) REG_OK_FOR_INDEX_NONSTRICT_P (X) | |
1839 #define REG_OK_FOR_BASE_P(X) REG_OK_FOR_BASE_NONSTRICT_P (X) | |
1840 | |
1841 #else | |
1842 #define REG_OK_FOR_INDEX_P(X) REG_OK_FOR_INDEX_STRICT_P (X) | |
1843 #define REG_OK_FOR_BASE_P(X) REG_OK_FOR_BASE_STRICT_P (X) | |
1844 #endif | |
1845 | |
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1846 /* TARGET_LEGITIMATE_ADDRESS_P recognizes an RTL expression |
0 | 1847 that is a valid memory address for an instruction. |
1848 The MODE argument is the machine mode for the MEM expression | |
1849 that wants to use this address. | |
1850 | |
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1851 The other macros defined here are used only in TARGET_LEGITIMATE_ADDRESS_P, |
0 | 1852 except for CONSTANT_ADDRESS_P which is usually machine-independent. |
1853 | |
1854 See legitimize_pic_address in i386.c for details as to what | |
1855 constitutes a legitimate address when -fpic is used. */ | |
1856 | |
1857 #define MAX_REGS_PER_ADDRESS 2 | |
1858 | |
1859 #define CONSTANT_ADDRESS_P(X) constant_address_p (X) | |
1860 | |
1861 /* If defined, a C expression to determine the base term of address X. | |
1862 This macro is used in only one place: `find_base_term' in alias.c. | |
1863 | |
1864 It is always safe for this macro to not be defined. It exists so | |
1865 that alias analysis can understand machine-dependent addresses. | |
1866 | |
1867 The typical use of this macro is to handle addresses containing | |
1868 a label_ref or symbol_ref within an UNSPEC. */ | |
1869 | |
1870 #define FIND_BASE_TERM(X) ix86_find_base_term (X) | |
1871 | |
1872 /* Nonzero if the constant value X is a legitimate general operand | |
1873 when generating PIC code. It is given that flag_pic is on and | |
1874 that X satisfies CONSTANT_P or is a CONST_DOUBLE. */ | |
1875 | |
1876 #define LEGITIMATE_PIC_OPERAND_P(X) legitimate_pic_operand_p (X) | |
1877 | |
1878 #define SYMBOLIC_CONST(X) \ | |
1879 (GET_CODE (X) == SYMBOL_REF \ | |
1880 || GET_CODE (X) == LABEL_REF \ | |
1881 || (GET_CODE (X) == CONST && symbolic_reference_mentioned_p (X))) | |
1882 | |
1883 /* Max number of args passed in registers. If this is more than 3, we will | |
1884 have problems with ebx (register #4), since it is a caller save register and | |
1885 is also used as the pic register in ELF. So for now, don't allow more than | |
1886 3 registers to be passed in registers. */ | |
1887 | |
1888 /* Abi specific values for REGPARM_MAX and SSE_REGPARM_MAX */ | |
1889 #define X86_64_REGPARM_MAX 6 | |
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1890 #define X86_64_MS_REGPARM_MAX 4 |
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1891 |
0 | 1892 #define X86_32_REGPARM_MAX 3 |
1893 | |
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1894 #define REGPARM_MAX \ |
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1895 (TARGET_64BIT \ |
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1896 ? (TARGET_64BIT_MS_ABI \ |
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1897 ? X86_64_MS_REGPARM_MAX \ |
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1898 : X86_64_REGPARM_MAX) \ |
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1899 : X86_32_REGPARM_MAX) |
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1900 |
0 | 1901 #define X86_64_SSE_REGPARM_MAX 8 |
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1902 #define X86_64_MS_SSE_REGPARM_MAX 4 |
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1903 |
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1904 #define X86_32_SSE_REGPARM_MAX (TARGET_SSE ? (TARGET_MACHO ? 4 : 3) : 0) |
0 | 1905 |
1906 #define SSE_REGPARM_MAX \ | |
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1907 (TARGET_64BIT \ |
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1908 ? (TARGET_64BIT_MS_ABI \ |
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1909 ? X86_64_MS_SSE_REGPARM_MAX \ |
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1910 : X86_64_SSE_REGPARM_MAX) \ |
0 | 1911 : X86_32_SSE_REGPARM_MAX) |
1912 | |
1913 #define MMX_REGPARM_MAX (TARGET_64BIT ? 0 : (TARGET_MMX ? 3 : 0)) | |
1914 | |
1915 /* Specify the machine mode that this machine uses | |
1916 for the index in the tablejump instruction. */ | |
1917 #define CASE_VECTOR_MODE \ | |
111 | 1918 (!TARGET_LP64 || (flag_pic && ix86_cmodel != CM_LARGE_PIC) ? SImode : DImode) |
0 | 1919 |
1920 /* Define this as 1 if `char' should by default be signed; else as 0. */ | |
1921 #define DEFAULT_SIGNED_CHAR 1 | |
1922 | |
1923 /* Max number of bytes we can move from memory to memory | |
1924 in one reasonably fast instruction. */ | |
1925 #define MOVE_MAX 16 | |
1926 | |
1927 /* MOVE_MAX_PIECES is the number of bytes at a time which we can | |
1928 move efficiently, as opposed to MOVE_MAX which is the maximum | |
111 | 1929 number of bytes we can move with a single instruction. |
1930 | |
1931 ??? We should use TImode in 32-bit mode and use OImode or XImode | |
1932 if they are available. But since by_pieces_ninsns determines the | |
1933 widest mode with MAX_FIXED_MODE_SIZE, we can only use TImode in | |
1934 64-bit mode. */ | |
1935 #define MOVE_MAX_PIECES \ | |
1936 ((TARGET_64BIT \ | |
1937 && TARGET_SSE2 \ | |
1938 && TARGET_SSE_UNALIGNED_LOAD_OPTIMAL \ | |
1939 && TARGET_SSE_UNALIGNED_STORE_OPTIMAL) \ | |
1940 ? GET_MODE_SIZE (TImode) : UNITS_PER_WORD) | |
0 | 1941 |
1942 /* If a memory-to-memory move would take MOVE_RATIO or more simple | |
145 | 1943 move-instruction pairs, we will do a cpymem or libcall instead. |
0 | 1944 Increasing the value will always make code faster, but eventually |
1945 incurs high cost in increased code size. | |
1946 | |
1947 If you don't define this, a reasonable default is used. */ | |
1948 | |
1949 #define MOVE_RATIO(speed) ((speed) ? ix86_cost->move_ratio : 3) | |
1950 | |
1951 /* If a clear memory operation would take CLEAR_RATIO or more simple | |
1952 move-instruction sequences, we will do a clrmem or libcall instead. */ | |
1953 | |
145 | 1954 #define CLEAR_RATIO(speed) ((speed) ? ix86_cost->clear_ratio : 2) |
0 | 1955 |
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1956 /* Define if shifts truncate the shift count which implies one can |
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1957 omit a sign-extension or zero-extension of a shift count. |
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1958 |
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1959 On i386, shifts do truncate the count. But bit test instructions |
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1960 take the modulo of the bit offset operand. */ |
0 | 1961 |
1962 /* #define SHIFT_COUNT_TRUNCATED */ | |
1963 | |
1964 /* A macro to update M and UNSIGNEDP when an object whose type is | |
1965 TYPE and which has the specified mode and signedness is to be | |
1966 stored in a register. This macro is only called when TYPE is a | |
1967 scalar type. | |
1968 | |
1969 On i386 it is sometimes useful to promote HImode and QImode | |
1970 quantities to SImode. The choice depends on target type. */ | |
1971 | |
1972 #define PROMOTE_MODE(MODE, UNSIGNEDP, TYPE) \ | |
1973 do { \ | |
1974 if (((MODE) == HImode && TARGET_PROMOTE_HI_REGS) \ | |
1975 || ((MODE) == QImode && TARGET_PROMOTE_QI_REGS)) \ | |
1976 (MODE) = SImode; \ | |
1977 } while (0) | |
1978 | |
1979 /* Specify the machine mode that pointers have. | |
1980 After generation of rtl, the compiler makes no further distinction | |
1981 between pointers and any other objects of this machine mode. */ | |
111 | 1982 #define Pmode (ix86_pmode == PMODE_DI ? DImode : SImode) |
1983 | |
131 | 1984 /* Supply a definition of STACK_SAVEAREA_MODE for emit_stack_save. |
1985 NONLOCAL needs space to save both shadow stack and stack pointers. | |
1986 | |
1987 FIXME: We only need to save and restore stack pointer in ptr_mode. | |
1988 But expand_builtin_setjmp_setup and expand_builtin_longjmp use Pmode | |
1989 to save and restore stack pointer. See | |
1990 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84150 | |
1991 */ | |
1992 #define STACK_SAVEAREA_MODE(LEVEL) \ | |
1993 ((LEVEL) == SAVE_NONLOCAL ? (TARGET_64BIT ? TImode : DImode) : Pmode) | |
111 | 1994 |
145 | 1995 /* Specify the machine_mode of the size increment |
1996 operand of an 'allocate_stack' named pattern. */ | |
1997 #define STACK_SIZE_MODE Pmode | |
1998 | |
111 | 1999 /* A C expression whose value is zero if pointers that need to be extended |
2000 from being `POINTER_SIZE' bits wide to `Pmode' are sign-extended and | |
2001 greater then zero if they are zero-extended and less then zero if the | |
2002 ptr_extend instruction should be used. */ | |
2003 | |
2004 #define POINTERS_EXTEND_UNSIGNED 1 | |
0 | 2005 |
2006 /* A function address in a call instruction | |
2007 is a byte address (for indexing purposes) | |
2008 so give the MEM rtx a byte's mode. */ | |
2009 #define FUNCTION_MODE QImode | |
2010 | |
2011 | |
2012 /* A C expression for the cost of a branch instruction. A value of 1 | |
2013 is the default; other values are interpreted relative to that. */ | |
2014 | |
2015 #define BRANCH_COST(speed_p, predictable_p) \ | |
2016 (!(speed_p) ? 2 : (predictable_p) ? 0 : ix86_branch_cost) | |
2017 | |
111 | 2018 /* An integer expression for the size in bits of the largest integer machine |
2019 mode that should actually be used. We allow pairs of registers. */ | |
2020 #define MAX_FIXED_MODE_SIZE GET_MODE_BITSIZE (TARGET_64BIT ? TImode : DImode) | |
2021 | |
0 | 2022 /* Define this macro as a C expression which is nonzero if accessing |
2023 less than a word of memory (i.e. a `char' or a `short') is no | |
2024 faster than accessing a word of memory, i.e., if such access | |
2025 require more than one instruction or if there is no difference in | |
2026 cost between byte and (aligned) word loads. | |
2027 | |
2028 When this macro is not defined, the compiler will access a field by | |
2029 finding the smallest containing object; when it is defined, a | |
2030 fullword load will be used if alignment permits. Unless bytes | |
2031 accesses are faster than word accesses, using word accesses is | |
2032 preferable since it may eliminate subsequent memory access if | |
2033 subsequent accesses occur to other fields in the same word of the | |
2034 structure, but to different bytes. */ | |
2035 | |
2036 #define SLOW_BYTE_ACCESS 0 | |
2037 | |
2038 /* Nonzero if access to memory by shorts is slow and undesirable. */ | |
2039 #define SLOW_SHORT_ACCESS 0 | |
2040 | |
2041 /* Define this macro if it is as good or better to call a constant | |
2042 function address than to call an address kept in a register. | |
2043 | |
2044 Desirable on the 386 because a CALL with a constant address is | |
2045 faster than one with a register address. */ | |
2046 | |
111 | 2047 #define NO_FUNCTION_CSE 1 |
0 | 2048 |
2049 /* Given a comparison code (EQ, NE, etc.) and the first operand of a COMPARE, | |
2050 return the mode to be used for the comparison. | |
2051 | |
2052 For floating-point equality comparisons, CCFPEQmode should be used. | |
2053 VOIDmode should be used in all other cases. | |
2054 | |
2055 For integer comparisons against zero, reduce to CCNOmode or CCZmode if | |
2056 possible, to allow for more combinations. */ | |
2057 | |
2058 #define SELECT_CC_MODE(OP, X, Y) ix86_cc_mode ((OP), (X), (Y)) | |
2059 | |
2060 /* Return nonzero if MODE implies a floating point inequality can be | |
2061 reversed. */ | |
2062 | |
2063 #define REVERSIBLE_CC_MODE(MODE) 1 | |
2064 | |
2065 /* A C expression whose value is reversed condition code of the CODE for | |
2066 comparison done in CC_MODE mode. */ | |
2067 #define REVERSE_CONDITION(CODE, MODE) ix86_reverse_condition ((CODE), (MODE)) | |
2068 | |
2069 | |
2070 /* Control the assembler format that we output, to the extent | |
2071 this does not vary between assemblers. */ | |
2072 | |
2073 /* How to refer to registers in assembler output. | |
2074 This sequence is indexed by compiler's hard-register-number (see above). */ | |
2075 | |
2076 /* In order to refer to the first 8 regs as 32-bit regs, prefix an "e". | |
2077 For non floating point regs, the following are the HImode names. | |
2078 | |
2079 For float regs, the stack top is sometimes referred to as "%st(0)" | |
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2080 instead of just "%st". TARGET_PRINT_OPERAND handles this with the |
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2081 "y" code. */ |
0 | 2082 |
2083 #define HI_REGISTER_NAMES \ | |
2084 {"ax","dx","cx","bx","si","di","bp","sp", \ | |
2085 "st","st(1)","st(2)","st(3)","st(4)","st(5)","st(6)","st(7)", \ | |
131 | 2086 "argp", "flags", "fpsr", "frame", \ |
0 | 2087 "xmm0","xmm1","xmm2","xmm3","xmm4","xmm5","xmm6","xmm7", \ |
2088 "mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7", \ | |
2089 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ | |
111 | 2090 "xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15", \ |
2091 "xmm16", "xmm17", "xmm18", "xmm19", \ | |
2092 "xmm20", "xmm21", "xmm22", "xmm23", \ | |
2093 "xmm24", "xmm25", "xmm26", "xmm27", \ | |
2094 "xmm28", "xmm29", "xmm30", "xmm31", \ | |
131 | 2095 "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" } |
0 | 2096 |
2097 #define REGISTER_NAMES HI_REGISTER_NAMES | |
2098 | |
145 | 2099 #define QI_REGISTER_NAMES \ |
2100 {"al", "dl", "cl", "bl", "sil", "dil", "bpl", "spl"} | |
2101 | |
2102 #define QI_HIGH_REGISTER_NAMES \ | |
2103 {"ah", "dh", "ch", "bh"} | |
2104 | |
0 | 2105 /* Table of additional register names to use in user input. */ |
2106 | |
131 | 2107 #define ADDITIONAL_REGISTER_NAMES \ |
2108 { \ | |
2109 { "eax", AX_REG }, { "edx", DX_REG }, { "ecx", CX_REG }, { "ebx", BX_REG }, \ | |
2110 { "esi", SI_REG }, { "edi", DI_REG }, { "ebp", BP_REG }, { "esp", SP_REG }, \ | |
2111 { "rax", AX_REG }, { "rdx", DX_REG }, { "rcx", CX_REG }, { "rbx", BX_REG }, \ | |
2112 { "rsi", SI_REG }, { "rdi", DI_REG }, { "rbp", BP_REG }, { "rsp", SP_REG }, \ | |
2113 { "al", AX_REG }, { "dl", DX_REG }, { "cl", CX_REG }, { "bl", BX_REG }, \ | |
145 | 2114 { "sil", SI_REG }, { "dil", DI_REG }, { "bpl", BP_REG }, { "spl", SP_REG }, \ |
131 | 2115 { "ah", AX_REG }, { "dh", DX_REG }, { "ch", CX_REG }, { "bh", BX_REG }, \ |
2116 { "ymm0", XMM0_REG }, { "ymm1", XMM1_REG }, { "ymm2", XMM2_REG }, { "ymm3", XMM3_REG }, \ | |
2117 { "ymm4", XMM4_REG }, { "ymm5", XMM5_REG }, { "ymm6", XMM6_REG }, { "ymm7", XMM7_REG }, \ | |
2118 { "ymm8", XMM8_REG }, { "ymm9", XMM9_REG }, { "ymm10", XMM10_REG }, { "ymm11", XMM11_REG }, \ | |
2119 { "ymm12", XMM12_REG }, { "ymm13", XMM13_REG }, { "ymm14", XMM14_REG }, { "ymm15", XMM15_REG }, \ | |
2120 { "ymm16", XMM16_REG }, { "ymm17", XMM17_REG }, { "ymm18", XMM18_REG }, { "ymm19", XMM19_REG }, \ | |
2121 { "ymm20", XMM20_REG }, { "ymm21", XMM21_REG }, { "ymm22", XMM22_REG }, { "ymm23", XMM23_REG }, \ | |
2122 { "ymm24", XMM24_REG }, { "ymm25", XMM25_REG }, { "ymm26", XMM26_REG }, { "ymm27", XMM27_REG }, \ | |
2123 { "ymm28", XMM28_REG }, { "ymm29", XMM29_REG }, { "ymm30", XMM30_REG }, { "ymm31", XMM31_REG }, \ | |
2124 { "zmm0", XMM0_REG }, { "zmm1", XMM1_REG }, { "zmm2", XMM2_REG }, { "zmm3", XMM3_REG }, \ | |
2125 { "zmm4", XMM4_REG }, { "zmm5", XMM5_REG }, { "zmm6", XMM6_REG }, { "zmm7", XMM7_REG }, \ | |
2126 { "zmm8", XMM8_REG }, { "zmm9", XMM9_REG }, { "zmm10", XMM10_REG }, { "zmm11", XMM11_REG }, \ | |
2127 { "zmm12", XMM12_REG }, { "zmm13", XMM13_REG }, { "zmm14", XMM14_REG }, { "zmm15", XMM15_REG }, \ | |
2128 { "zmm16", XMM16_REG }, { "zmm17", XMM17_REG }, { "zmm18", XMM18_REG }, { "zmm19", XMM19_REG }, \ | |
2129 { "zmm20", XMM20_REG }, { "zmm21", XMM21_REG }, { "zmm22", XMM22_REG }, { "zmm23", XMM23_REG }, \ | |
2130 { "zmm24", XMM24_REG }, { "zmm25", XMM25_REG }, { "zmm26", XMM26_REG }, { "zmm27", XMM27_REG }, \ | |
2131 { "zmm28", XMM28_REG }, { "zmm29", XMM29_REG }, { "zmm30", XMM30_REG }, { "zmm31", XMM31_REG } \ | |
2132 } | |
0 | 2133 |
2134 /* How to renumber registers for dbx and gdb. */ | |
2135 | |
2136 #define DBX_REGISTER_NUMBER(N) \ | |
2137 (TARGET_64BIT ? dbx64_register_map[(N)] : dbx_register_map[(N)]) | |
2138 | |
2139 extern int const dbx_register_map[FIRST_PSEUDO_REGISTER]; | |
2140 extern int const dbx64_register_map[FIRST_PSEUDO_REGISTER]; | |
2141 extern int const svr4_dbx_register_map[FIRST_PSEUDO_REGISTER]; | |
2142 | |
2143 /* Before the prologue, RA is at 0(%esp). */ | |
2144 #define INCOMING_RETURN_ADDR_RTX \ | |
111 | 2145 gen_rtx_MEM (Pmode, stack_pointer_rtx) |
0 | 2146 |
2147 /* After the prologue, RA is at -4(AP) in the current frame. */ | |
111 | 2148 #define RETURN_ADDR_RTX(COUNT, FRAME) \ |
2149 ((COUNT) == 0 \ | |
2150 ? gen_rtx_MEM (Pmode, plus_constant (Pmode, arg_pointer_rtx, \ | |
2151 -UNITS_PER_WORD)) \ | |
2152 : gen_rtx_MEM (Pmode, plus_constant (Pmode, (FRAME), UNITS_PER_WORD))) | |
0 | 2153 |
2154 /* PC is dbx register 8; let's use that column for RA. */ | |
2155 #define DWARF_FRAME_RETURN_COLUMN (TARGET_64BIT ? 16 : 8) | |
2156 | |
111 | 2157 /* Before the prologue, there are return address and error code for |
2158 exception handler on the top of the frame. */ | |
2159 #define INCOMING_FRAME_SP_OFFSET \ | |
2160 (cfun->machine->func_type == TYPE_EXCEPTION \ | |
2161 ? 2 * UNITS_PER_WORD : UNITS_PER_WORD) | |
0 | 2162 |
131 | 2163 /* The value of INCOMING_FRAME_SP_OFFSET the assembler assumes in |
2164 .cfi_startproc. */ | |
2165 #define DEFAULT_INCOMING_FRAME_SP_OFFSET UNITS_PER_WORD | |
2166 | |
0 | 2167 /* Describe how we implement __builtin_eh_return. */ |
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2168 #define EH_RETURN_DATA_REGNO(N) ((N) <= DX_REG ? (N) : INVALID_REGNUM) |
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2169 #define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, CX_REG) |
0 | 2170 |
2171 | |
2172 /* Select a format to encode pointers in exception handling data. CODE | |
2173 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is | |
2174 true if the symbol may be affected by dynamic relocations. | |
2175 | |
2176 ??? All x86 object file formats are capable of representing this. | |
2177 After all, the relocation needed is the same as for the call insn. | |
2178 Whether or not a particular assembler allows us to enter such, I | |
2179 guess we'll have to see. */ | |
2180 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \ | |
2181 asm_preferred_eh_data_format ((CODE), (GLOBAL)) | |
2182 | |
111 | 2183 /* These are a couple of extensions to the formats accepted |
2184 by asm_fprintf: | |
2185 %z prints out opcode suffix for word-mode instruction | |
2186 %r prints out word-mode name for reg_names[arg] */ | |
2187 #define ASM_FPRINTF_EXTENSIONS(FILE, ARGS, P) \ | |
2188 case 'z': \ | |
2189 fputc (TARGET_64BIT ? 'q' : 'l', (FILE)); \ | |
2190 break; \ | |
2191 \ | |
2192 case 'r': \ | |
2193 { \ | |
2194 unsigned int regno = va_arg ((ARGS), int); \ | |
2195 if (LEGACY_INT_REGNO_P (regno)) \ | |
2196 fputc (TARGET_64BIT ? 'r' : 'e', (FILE)); \ | |
2197 fputs (reg_names[regno], (FILE)); \ | |
2198 break; \ | |
2199 } | |
2200 | |
2201 /* This is how to output an insn to push a register on the stack. */ | |
2202 | |
2203 #define ASM_OUTPUT_REG_PUSH(FILE, REGNO) \ | |
2204 asm_fprintf ((FILE), "\tpush%z\t%%%r\n", (REGNO)) | |
2205 | |
2206 /* This is how to output an insn to pop a register from the stack. */ | |
0 | 2207 |
2208 #define ASM_OUTPUT_REG_POP(FILE, REGNO) \ | |
111 | 2209 asm_fprintf ((FILE), "\tpop%z\t%%%r\n", (REGNO)) |
0 | 2210 |
2211 /* This is how to output an element of a case-vector that is absolute. */ | |
2212 | |
2213 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ | |
2214 ix86_output_addr_vec_elt ((FILE), (VALUE)) | |
2215 | |
2216 /* This is how to output an element of a case-vector that is relative. */ | |
2217 | |
2218 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \ | |
2219 ix86_output_addr_diff_elt ((FILE), (VALUE), (REL)) | |
2220 | |
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2221 /* When we see %v, we will print the 'v' prefix if TARGET_AVX is true. */ |
0 | 2222 |
2223 #define ASM_OUTPUT_AVX_PREFIX(STREAM, PTR) \ | |
2224 { \ | |
2225 if ((PTR)[0] == '%' && (PTR)[1] == 'v') \ | |
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2226 (PTR) += TARGET_AVX ? 1 : 2; \ |
0 | 2227 } |
2228 | |
2229 /* A C statement or statements which output an assembler instruction | |
2230 opcode to the stdio stream STREAM. The macro-operand PTR is a | |
2231 variable of type `char *' which points to the opcode name in | |
2232 its "internal" form--the form that is written in the machine | |
2233 description. */ | |
2234 | |
2235 #define ASM_OUTPUT_OPCODE(STREAM, PTR) \ | |
2236 ASM_OUTPUT_AVX_PREFIX ((STREAM), (PTR)) | |
2237 | |
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2238 /* A C statement to output to the stdio stream FILE an assembler |
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2239 command to pad the location counter to a multiple of 1<<LOG |
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2240 bytes if it is within MAX_SKIP bytes. */ |
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2241 |
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2242 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN |
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2243 #undef ASM_OUTPUT_MAX_SKIP_PAD |
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2244 #define ASM_OUTPUT_MAX_SKIP_PAD(FILE, LOG, MAX_SKIP) \ |
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2245 if ((LOG) != 0) \ |
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2246 { \ |
131 | 2247 if ((MAX_SKIP) == 0 || (MAX_SKIP) >= (1 << (LOG)) - 1) \ |
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2248 fprintf ((FILE), "\t.p2align %d\n", (LOG)); \ |
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2249 else \ |
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2250 fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \ |
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2251 } |
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2252 #endif |
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2253 |
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2254 /* Write the extra assembler code needed to declare a function |
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2255 properly. */ |
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2256 |
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2257 #undef ASM_OUTPUT_FUNCTION_LABEL |
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2258 #define ASM_OUTPUT_FUNCTION_LABEL(FILE, NAME, DECL) \ |
111 | 2259 ix86_asm_output_function_label ((FILE), (NAME), (DECL)) |
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2260 |
145 | 2261 /* A C statement (sans semicolon) to output a reference to SYMBOL_REF SYM. |
2262 If not defined, assemble_name will be used to output the name of the | |
2263 symbol. This macro may be used to modify the way a symbol is referenced | |
2264 depending on information encoded by TARGET_ENCODE_SECTION_INFO. */ | |
2265 | |
2266 #ifndef ASM_OUTPUT_SYMBOL_REF | |
2267 #define ASM_OUTPUT_SYMBOL_REF(FILE, SYM) \ | |
2268 do { \ | |
2269 const char *name \ | |
2270 = assemble_name_resolve (XSTR (x, 0)); \ | |
2271 /* In -masm=att wrap identifiers that start with $ \ | |
2272 into parens. */ \ | |
2273 if (ASSEMBLER_DIALECT == ASM_ATT \ | |
2274 && name[0] == '$' \ | |
2275 && user_label_prefix[0] == '\0') \ | |
2276 { \ | |
2277 fputc ('(', (FILE)); \ | |
2278 assemble_name_raw ((FILE), name); \ | |
2279 fputc (')', (FILE)); \ | |
2280 } \ | |
2281 else \ | |
2282 assemble_name_raw ((FILE), name); \ | |
2283 } while (0) | |
2284 #endif | |
2285 | |
0 | 2286 /* Under some conditions we need jump tables in the text section, |
2287 because the assembler cannot handle label differences between | |
2288 sections. This is the case for x86_64 on Mach-O for example. */ | |
2289 | |
2290 #define JUMP_TABLES_IN_TEXT_SECTION \ | |
2291 (flag_pic && ((TARGET_MACHO && TARGET_64BIT) \ | |
2292 || (!TARGET_64BIT && !HAVE_AS_GOTOFF_IN_DATA))) | |
2293 | |
2294 /* Switch to init or fini section via SECTION_OP, emit a call to FUNC, | |
2295 and switch back. For x86 we do this only to save a few bytes that | |
2296 would otherwise be unused in the text section. */ | |
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2297 #define CRT_MKSTR2(VAL) #VAL |
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2298 #define CRT_MKSTR(x) CRT_MKSTR2(x) |
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2299 |
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2300 #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ |
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2301 asm (SECTION_OP "\n\t" \ |
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2302 "call " CRT_MKSTR(__USER_LABEL_PREFIX__) #FUNC "\n" \ |
0 | 2303 TEXT_SECTION_ASM_OP); |
111 | 2304 |
2305 /* Default threshold for putting data in large sections | |
2306 with x86-64 medium memory model */ | |
2307 #define DEFAULT_LARGE_SECTION_THRESHOLD 65536 | |
0 | 2308 |
111 | 2309 /* Which processor to tune code generation for. These must be in sync |
2310 with processor_target_table in i386.c. */ | |
0 | 2311 |
2312 enum processor_type | |
2313 { | |
111 | 2314 PROCESSOR_GENERIC = 0, |
2315 PROCESSOR_I386, /* 80386 */ | |
0 | 2316 PROCESSOR_I486, /* 80486DX, 80486SX, 80486DX[24] */ |
2317 PROCESSOR_PENTIUM, | |
111 | 2318 PROCESSOR_LAKEMONT, |
0 | 2319 PROCESSOR_PENTIUMPRO, |
111 | 2320 PROCESSOR_PENTIUM4, |
2321 PROCESSOR_NOCONA, | |
2322 PROCESSOR_CORE2, | |
2323 PROCESSOR_NEHALEM, | |
2324 PROCESSOR_SANDYBRIDGE, | |
2325 PROCESSOR_HASWELL, | |
2326 PROCESSOR_BONNELL, | |
2327 PROCESSOR_SILVERMONT, | |
131 | 2328 PROCESSOR_GOLDMONT, |
2329 PROCESSOR_GOLDMONT_PLUS, | |
2330 PROCESSOR_TREMONT, | |
111 | 2331 PROCESSOR_KNL, |
2332 PROCESSOR_KNM, | |
131 | 2333 PROCESSOR_SKYLAKE, |
111 | 2334 PROCESSOR_SKYLAKE_AVX512, |
131 | 2335 PROCESSOR_CANNONLAKE, |
2336 PROCESSOR_ICELAKE_CLIENT, | |
2337 PROCESSOR_ICELAKE_SERVER, | |
145 | 2338 PROCESSOR_CASCADELAKE, |
2339 PROCESSOR_TIGERLAKE, | |
2340 PROCESSOR_COOPERLAKE, | |
111 | 2341 PROCESSOR_INTEL, |
0 | 2342 PROCESSOR_GEODE, |
2343 PROCESSOR_K6, | |
2344 PROCESSOR_ATHLON, | |
2345 PROCESSOR_K8, | |
2346 PROCESSOR_AMDFAM10, | |
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2347 PROCESSOR_BDVER1, |
111 | 2348 PROCESSOR_BDVER2, |
2349 PROCESSOR_BDVER3, | |
2350 PROCESSOR_BDVER4, | |
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2351 PROCESSOR_BTVER1, |
111 | 2352 PROCESSOR_BTVER2, |
2353 PROCESSOR_ZNVER1, | |
145 | 2354 PROCESSOR_ZNVER2, |
0 | 2355 PROCESSOR_max |
2356 }; | |
2357 | |
131 | 2358 #if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS) |
145 | 2359 extern const char *const processor_names[]; |
131 | 2360 |
2361 #include "wide-int-bitmask.h" | |
2362 | |
2363 const wide_int_bitmask PTA_3DNOW (HOST_WIDE_INT_1U << 0); | |
2364 const wide_int_bitmask PTA_3DNOW_A (HOST_WIDE_INT_1U << 1); | |
2365 const wide_int_bitmask PTA_64BIT (HOST_WIDE_INT_1U << 2); | |
2366 const wide_int_bitmask PTA_ABM (HOST_WIDE_INT_1U << 3); | |
2367 const wide_int_bitmask PTA_AES (HOST_WIDE_INT_1U << 4); | |
2368 const wide_int_bitmask PTA_AVX (HOST_WIDE_INT_1U << 5); | |
2369 const wide_int_bitmask PTA_BMI (HOST_WIDE_INT_1U << 6); | |
2370 const wide_int_bitmask PTA_CX16 (HOST_WIDE_INT_1U << 7); | |
2371 const wide_int_bitmask PTA_F16C (HOST_WIDE_INT_1U << 8); | |
2372 const wide_int_bitmask PTA_FMA (HOST_WIDE_INT_1U << 9); | |
2373 const wide_int_bitmask PTA_FMA4 (HOST_WIDE_INT_1U << 10); | |
2374 const wide_int_bitmask PTA_FSGSBASE (HOST_WIDE_INT_1U << 11); | |
2375 const wide_int_bitmask PTA_LWP (HOST_WIDE_INT_1U << 12); | |
2376 const wide_int_bitmask PTA_LZCNT (HOST_WIDE_INT_1U << 13); | |
2377 const wide_int_bitmask PTA_MMX (HOST_WIDE_INT_1U << 14); | |
2378 const wide_int_bitmask PTA_MOVBE (HOST_WIDE_INT_1U << 15); | |
2379 const wide_int_bitmask PTA_NO_SAHF (HOST_WIDE_INT_1U << 16); | |
2380 const wide_int_bitmask PTA_PCLMUL (HOST_WIDE_INT_1U << 17); | |
2381 const wide_int_bitmask PTA_POPCNT (HOST_WIDE_INT_1U << 18); | |
2382 const wide_int_bitmask PTA_PREFETCH_SSE (HOST_WIDE_INT_1U << 19); | |
2383 const wide_int_bitmask PTA_RDRND (HOST_WIDE_INT_1U << 20); | |
2384 const wide_int_bitmask PTA_SSE (HOST_WIDE_INT_1U << 21); | |
2385 const wide_int_bitmask PTA_SSE2 (HOST_WIDE_INT_1U << 22); | |
2386 const wide_int_bitmask PTA_SSE3 (HOST_WIDE_INT_1U << 23); | |
2387 const wide_int_bitmask PTA_SSE4_1 (HOST_WIDE_INT_1U << 24); | |
2388 const wide_int_bitmask PTA_SSE4_2 (HOST_WIDE_INT_1U << 25); | |
2389 const wide_int_bitmask PTA_SSE4A (HOST_WIDE_INT_1U << 26); | |
2390 const wide_int_bitmask PTA_SSSE3 (HOST_WIDE_INT_1U << 27); | |
2391 const wide_int_bitmask PTA_TBM (HOST_WIDE_INT_1U << 28); | |
2392 const wide_int_bitmask PTA_XOP (HOST_WIDE_INT_1U << 29); | |
2393 const wide_int_bitmask PTA_AVX2 (HOST_WIDE_INT_1U << 30); | |
2394 const wide_int_bitmask PTA_BMI2 (HOST_WIDE_INT_1U << 31); | |
2395 const wide_int_bitmask PTA_RTM (HOST_WIDE_INT_1U << 32); | |
2396 const wide_int_bitmask PTA_HLE (HOST_WIDE_INT_1U << 33); | |
2397 const wide_int_bitmask PTA_PRFCHW (HOST_WIDE_INT_1U << 34); | |
2398 const wide_int_bitmask PTA_RDSEED (HOST_WIDE_INT_1U << 35); | |
2399 const wide_int_bitmask PTA_ADX (HOST_WIDE_INT_1U << 36); | |
2400 const wide_int_bitmask PTA_FXSR (HOST_WIDE_INT_1U << 37); | |
2401 const wide_int_bitmask PTA_XSAVE (HOST_WIDE_INT_1U << 38); | |
2402 const wide_int_bitmask PTA_XSAVEOPT (HOST_WIDE_INT_1U << 39); | |
2403 const wide_int_bitmask PTA_AVX512F (HOST_WIDE_INT_1U << 40); | |
2404 const wide_int_bitmask PTA_AVX512ER (HOST_WIDE_INT_1U << 41); | |
2405 const wide_int_bitmask PTA_AVX512PF (HOST_WIDE_INT_1U << 42); | |
2406 const wide_int_bitmask PTA_AVX512CD (HOST_WIDE_INT_1U << 43); | |
2407 /* Hole after PTA_MPX was removed. */ | |
2408 const wide_int_bitmask PTA_SHA (HOST_WIDE_INT_1U << 45); | |
2409 const wide_int_bitmask PTA_PREFETCHWT1 (HOST_WIDE_INT_1U << 46); | |
2410 const wide_int_bitmask PTA_CLFLUSHOPT (HOST_WIDE_INT_1U << 47); | |
2411 const wide_int_bitmask PTA_XSAVEC (HOST_WIDE_INT_1U << 48); | |
2412 const wide_int_bitmask PTA_XSAVES (HOST_WIDE_INT_1U << 49); | |
2413 const wide_int_bitmask PTA_AVX512DQ (HOST_WIDE_INT_1U << 50); | |
2414 const wide_int_bitmask PTA_AVX512BW (HOST_WIDE_INT_1U << 51); | |
2415 const wide_int_bitmask PTA_AVX512VL (HOST_WIDE_INT_1U << 52); | |
2416 const wide_int_bitmask PTA_AVX512IFMA (HOST_WIDE_INT_1U << 53); | |
2417 const wide_int_bitmask PTA_AVX512VBMI (HOST_WIDE_INT_1U << 54); | |
2418 const wide_int_bitmask PTA_CLWB (HOST_WIDE_INT_1U << 55); | |
2419 const wide_int_bitmask PTA_MWAITX (HOST_WIDE_INT_1U << 56); | |
2420 const wide_int_bitmask PTA_CLZERO (HOST_WIDE_INT_1U << 57); | |
2421 const wide_int_bitmask PTA_NO_80387 (HOST_WIDE_INT_1U << 58); | |
2422 const wide_int_bitmask PTA_PKU (HOST_WIDE_INT_1U << 59); | |
2423 const wide_int_bitmask PTA_AVX5124VNNIW (HOST_WIDE_INT_1U << 60); | |
2424 const wide_int_bitmask PTA_AVX5124FMAPS (HOST_WIDE_INT_1U << 61); | |
2425 const wide_int_bitmask PTA_AVX512VPOPCNTDQ (HOST_WIDE_INT_1U << 62); | |
2426 const wide_int_bitmask PTA_SGX (HOST_WIDE_INT_1U << 63); | |
2427 const wide_int_bitmask PTA_AVX512VNNI (0, HOST_WIDE_INT_1U); | |
2428 const wide_int_bitmask PTA_GFNI (0, HOST_WIDE_INT_1U << 1); | |
2429 const wide_int_bitmask PTA_VAES (0, HOST_WIDE_INT_1U << 2); | |
2430 const wide_int_bitmask PTA_AVX512VBMI2 (0, HOST_WIDE_INT_1U << 3); | |
2431 const wide_int_bitmask PTA_VPCLMULQDQ (0, HOST_WIDE_INT_1U << 4); | |
2432 const wide_int_bitmask PTA_AVX512BITALG (0, HOST_WIDE_INT_1U << 5); | |
2433 const wide_int_bitmask PTA_RDPID (0, HOST_WIDE_INT_1U << 6); | |
2434 const wide_int_bitmask PTA_PCONFIG (0, HOST_WIDE_INT_1U << 7); | |
2435 const wide_int_bitmask PTA_WBNOINVD (0, HOST_WIDE_INT_1U << 8); | |
145 | 2436 const wide_int_bitmask PTA_AVX512VP2INTERSECT (0, HOST_WIDE_INT_1U << 9); |
131 | 2437 const wide_int_bitmask PTA_WAITPKG (0, HOST_WIDE_INT_1U << 9); |
145 | 2438 const wide_int_bitmask PTA_PTWRITE (0, HOST_WIDE_INT_1U << 10); |
2439 const wide_int_bitmask PTA_AVX512BF16 (0, HOST_WIDE_INT_1U << 11); | |
2440 const wide_int_bitmask PTA_MOVDIRI(0, HOST_WIDE_INT_1U << 13); | |
2441 const wide_int_bitmask PTA_MOVDIR64B(0, HOST_WIDE_INT_1U << 14); | |
131 | 2442 |
2443 const wide_int_bitmask PTA_CORE2 = PTA_64BIT | PTA_MMX | PTA_SSE | PTA_SSE2 | |
2444 | PTA_SSE3 | PTA_SSSE3 | PTA_CX16 | PTA_FXSR; | |
2445 const wide_int_bitmask PTA_NEHALEM = PTA_CORE2 | PTA_SSE4_1 | PTA_SSE4_2 | |
2446 | PTA_POPCNT; | |
145 | 2447 const wide_int_bitmask PTA_WESTMERE = PTA_NEHALEM | PTA_PCLMUL; |
131 | 2448 const wide_int_bitmask PTA_SANDYBRIDGE = PTA_WESTMERE | PTA_AVX | PTA_XSAVE |
2449 | PTA_XSAVEOPT; | |
2450 const wide_int_bitmask PTA_IVYBRIDGE = PTA_SANDYBRIDGE | PTA_FSGSBASE | |
2451 | PTA_RDRND | PTA_F16C; | |
2452 const wide_int_bitmask PTA_HASWELL = PTA_IVYBRIDGE | PTA_AVX2 | PTA_BMI | |
2453 | PTA_BMI2 | PTA_LZCNT | PTA_FMA | PTA_MOVBE | PTA_HLE; | |
2454 const wide_int_bitmask PTA_BROADWELL = PTA_HASWELL | PTA_ADX | PTA_PRFCHW | |
2455 | PTA_RDSEED; | |
145 | 2456 const wide_int_bitmask PTA_SKYLAKE = PTA_BROADWELL | PTA_AES | PTA_CLFLUSHOPT |
131 | 2457 | PTA_XSAVEC | PTA_XSAVES | PTA_SGX; |
2458 const wide_int_bitmask PTA_SKYLAKE_AVX512 = PTA_SKYLAKE | PTA_AVX512F | |
2459 | PTA_AVX512CD | PTA_AVX512VL | PTA_AVX512BW | PTA_AVX512DQ | PTA_PKU | |
2460 | PTA_CLWB; | |
145 | 2461 const wide_int_bitmask PTA_CASCADELAKE = PTA_SKYLAKE_AVX512 | PTA_AVX512VNNI; |
2462 const wide_int_bitmask PTA_COOPERLAKE = PTA_CASCADELAKE | PTA_AVX512BF16; | |
131 | 2463 const wide_int_bitmask PTA_CANNONLAKE = PTA_SKYLAKE | PTA_AVX512F |
2464 | PTA_AVX512CD | PTA_AVX512VL | PTA_AVX512BW | PTA_AVX512DQ | PTA_PKU | |
2465 | PTA_AVX512VBMI | PTA_AVX512IFMA | PTA_SHA; | |
2466 const wide_int_bitmask PTA_ICELAKE_CLIENT = PTA_CANNONLAKE | PTA_AVX512VNNI | |
2467 | PTA_GFNI | PTA_VAES | PTA_AVX512VBMI2 | PTA_VPCLMULQDQ | PTA_AVX512BITALG | |
145 | 2468 | PTA_RDPID | PTA_CLWB | PTA_AVX512VPOPCNTDQ; |
131 | 2469 const wide_int_bitmask PTA_ICELAKE_SERVER = PTA_ICELAKE_CLIENT | PTA_PCONFIG |
2470 | PTA_WBNOINVD; | |
145 | 2471 const wide_int_bitmask PTA_TIGERLAKE = PTA_ICELAKE_CLIENT | PTA_MOVDIRI |
2472 | PTA_MOVDIR64B | PTA_AVX512VP2INTERSECT; | |
131 | 2473 const wide_int_bitmask PTA_KNL = PTA_BROADWELL | PTA_AVX512PF | PTA_AVX512ER |
2474 | PTA_AVX512F | PTA_AVX512CD; | |
2475 const wide_int_bitmask PTA_BONNELL = PTA_CORE2 | PTA_MOVBE; | |
2476 const wide_int_bitmask PTA_SILVERMONT = PTA_WESTMERE | PTA_MOVBE | PTA_RDRND; | |
145 | 2477 const wide_int_bitmask PTA_GOLDMONT = PTA_SILVERMONT | PTA_AES | PTA_SHA | PTA_XSAVE |
131 | 2478 | PTA_RDSEED | PTA_XSAVEC | PTA_XSAVES | PTA_CLFLUSHOPT | PTA_XSAVEOPT |
2479 | PTA_FSGSBASE; | |
2480 const wide_int_bitmask PTA_GOLDMONT_PLUS = PTA_GOLDMONT | PTA_RDPID | |
145 | 2481 | PTA_SGX | PTA_PTWRITE; |
131 | 2482 const wide_int_bitmask PTA_TREMONT = PTA_GOLDMONT_PLUS | PTA_CLWB |
2483 | PTA_GFNI; | |
2484 const wide_int_bitmask PTA_KNM = PTA_KNL | PTA_AVX5124VNNIW | |
2485 | PTA_AVX5124FMAPS | PTA_AVX512VPOPCNTDQ; | |
2486 | |
2487 #ifndef GENERATOR_FILE | |
2488 | |
2489 #include "insn-attr-common.h" | |
2490 | |
145 | 2491 class pta |
131 | 2492 { |
145 | 2493 public: |
131 | 2494 const char *const name; /* processor name or nickname. */ |
2495 const enum processor_type processor; | |
2496 const enum attr_cpu schedule; | |
2497 const wide_int_bitmask flags; | |
2498 }; | |
2499 | |
2500 extern const pta processor_alias_table[]; | |
2501 extern int const pta_size; | |
2502 #endif | |
2503 | |
2504 #endif | |
2505 | |
0 | 2506 extern enum processor_type ix86_tune; |
2507 extern enum processor_type ix86_arch; | |
2508 | |
2509 /* Size of the RED_ZONE area. */ | |
2510 #define RED_ZONE_SIZE 128 | |
2511 /* Reserved area of the red zone for temporaries. */ | |
2512 #define RED_ZONE_RESERVE 8 | |
2513 | |
2514 extern unsigned int ix86_preferred_stack_boundary; | |
2515 extern unsigned int ix86_incoming_stack_boundary; | |
2516 | |
2517 /* Smallest class containing REGNO. */ | |
2518 extern enum reg_class const regclass_map[FIRST_PSEUDO_REGISTER]; | |
2519 | |
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2520 enum ix86_fpcmp_strategy { |
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2521 IX86_FPCMP_SAHF, |
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2522 IX86_FPCMP_COMI, |
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2523 IX86_FPCMP_ARITH |
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2524 }; |
0 | 2525 |
2526 /* To properly truncate FP values into integers, we need to set i387 control | |
2527 word. We can't emit proper mode switching code before reload, as spills | |
2528 generated by reload may truncate values incorrectly, but we still can avoid | |
2529 redundant computation of new control word by the mode switching pass. | |
2530 The fldcw instructions are still emitted redundantly, but this is probably | |
2531 not going to be noticeable problem, as most CPUs do have fast path for | |
2532 the sequence. | |
2533 | |
2534 The machinery is to emit simple truncation instructions and split them | |
2535 before reload to instructions having USEs of two memory locations that | |
2536 are filled by this code to old and new control word. | |
2537 | |
2538 Post-reload pass may be later used to eliminate the redundant fildcw if | |
2539 needed. */ | |
2540 | |
111 | 2541 enum ix86_stack_slot |
2542 { | |
2543 SLOT_TEMP = 0, | |
2544 SLOT_CW_STORED, | |
145 | 2545 SLOT_CW_ROUNDEVEN, |
111 | 2546 SLOT_CW_TRUNC, |
2547 SLOT_CW_FLOOR, | |
2548 SLOT_CW_CEIL, | |
2549 SLOT_STV_TEMP, | |
2550 MAX_386_STACK_LOCALS | |
2551 }; | |
2552 | |
0 | 2553 enum ix86_entity |
2554 { | |
111 | 2555 X86_DIRFLAG = 0, |
2556 AVX_U128, | |
145 | 2557 I387_ROUNDEVEN, |
111 | 2558 I387_TRUNC, |
0 | 2559 I387_FLOOR, |
2560 I387_CEIL, | |
2561 MAX_386_ENTITIES | |
2562 }; | |
2563 | |
111 | 2564 enum x86_dirflag_state |
0 | 2565 { |
111 | 2566 X86_DIRFLAG_RESET, |
2567 X86_DIRFLAG_ANY | |
2568 }; | |
2569 | |
2570 enum avx_u128_state | |
2571 { | |
2572 AVX_U128_CLEAN, | |
2573 AVX_U128_DIRTY, | |
2574 AVX_U128_ANY | |
0 | 2575 }; |
2576 | |
2577 /* Define this macro if the port needs extra instructions inserted | |
2578 for mode switching in an optimizing compilation. */ | |
2579 | |
2580 #define OPTIMIZE_MODE_SWITCHING(ENTITY) \ | |
2581 ix86_optimize_mode_switching[(ENTITY)] | |
2582 | |
2583 /* If you define `OPTIMIZE_MODE_SWITCHING', you have to define this as | |
2584 initializer for an array of integers. Each initializer element N | |
2585 refers to an entity that needs mode switching, and specifies the | |
2586 number of different modes that might need to be set for this | |
2587 entity. The position of the initializer in the initializer - | |
2588 starting counting at zero - determines the integer that is used to | |
2589 refer to the mode-switched entity in question. */ | |
2590 | |
111 | 2591 #define NUM_MODES_FOR_MODE_SWITCHING \ |
2592 { X86_DIRFLAG_ANY, AVX_U128_ANY, \ | |
145 | 2593 I387_CW_ANY, I387_CW_ANY, I387_CW_ANY, I387_CW_ANY } |
0 | 2594 |
2595 | |
2596 /* Avoid renaming of stack registers, as doing so in combination with | |
2597 scheduling just increases amount of live registers at time and in | |
2598 the turn amount of fxch instructions needed. | |
2599 | |
111 | 2600 ??? Maybe Pentium chips benefits from renaming, someone can try.... |
2601 | |
2602 Don't rename evex to non-evex sse registers. */ | |
2603 | |
2604 #define HARD_REGNO_RENAME_OK(SRC, TARGET) \ | |
2605 (!STACK_REGNO_P (SRC) \ | |
2606 && EXT_REX_SSE_REGNO_P (SRC) == EXT_REX_SSE_REGNO_P (TARGET)) | |
0 | 2607 |
2608 | |
2609 #define FASTCALL_PREFIX '@' | |
2610 | |
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2611 #ifndef USED_FOR_TARGET |
111 | 2612 /* Structure describing stack frame layout. |
2613 Stack grows downward: | |
2614 | |
2615 [arguments] | |
2616 <- ARG_POINTER | |
2617 saved pc | |
2618 | |
2619 saved static chain if ix86_static_chain_on_stack | |
2620 | |
2621 saved frame pointer if frame_pointer_needed | |
2622 <- HARD_FRAME_POINTER | |
2623 [saved regs] | |
2624 <- reg_save_offset | |
2625 [padding0] | |
2626 <- stack_realign_offset | |
2627 [saved SSE regs] | |
2628 OR | |
2629 [stub-saved registers for ms x64 --> sysv clobbers | |
2630 <- Start of out-of-line, stub-saved/restored regs | |
2631 (see libgcc/config/i386/(sav|res)ms64*.S) | |
2632 [XMM6-15] | |
2633 [RSI] | |
2634 [RDI] | |
2635 [?RBX] only if RBX is clobbered | |
2636 [?RBP] only if RBP and RBX are clobbered | |
2637 [?R12] only if R12 and all previous regs are clobbered | |
2638 [?R13] only if R13 and all previous regs are clobbered | |
2639 [?R14] only if R14 and all previous regs are clobbered | |
2640 [?R15] only if R15 and all previous regs are clobbered | |
2641 <- end of stub-saved/restored regs | |
2642 [padding1] | |
2643 ] | |
2644 <- sse_reg_save_offset | |
2645 [padding2] | |
2646 | <- FRAME_POINTER | |
2647 [va_arg registers] | | |
2648 | | |
2649 [frame] | | |
2650 | | |
2651 [padding2] | = to_allocate | |
2652 <- STACK_POINTER | |
2653 */ | |
2654 struct GTY(()) ix86_frame | |
2655 { | |
2656 int nsseregs; | |
2657 int nregs; | |
2658 int va_arg_size; | |
2659 int red_zone_size; | |
2660 int outgoing_arguments_size; | |
2661 | |
2662 /* The offsets relative to ARG_POINTER. */ | |
2663 HOST_WIDE_INT frame_pointer_offset; | |
2664 HOST_WIDE_INT hard_frame_pointer_offset; | |
2665 HOST_WIDE_INT stack_pointer_offset; | |
2666 HOST_WIDE_INT hfp_save_offset; | |
2667 HOST_WIDE_INT reg_save_offset; | |
2668 HOST_WIDE_INT stack_realign_allocate; | |
2669 HOST_WIDE_INT stack_realign_offset; | |
2670 HOST_WIDE_INT sse_reg_save_offset; | |
2671 | |
2672 /* When save_regs_using_mov is set, emit prologue using | |
2673 move instead of push instructions. */ | |
2674 bool save_regs_using_mov; | |
145 | 2675 |
2676 /* Assume without checking that: | |
2677 EXPENSIVE_P = expensive_function_p (EXPENSIVE_COUNT). */ | |
2678 bool expensive_p; | |
2679 int expensive_count; | |
111 | 2680 }; |
2681 | |
2682 /* Machine specific frame tracking during prologue/epilogue generation. All | |
2683 values are positive, but since the x86 stack grows downward, are subtratced | |
2684 from the CFA to produce a valid address. */ | |
2685 | |
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2686 struct GTY(()) machine_frame_state |
0 | 2687 { |
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2688 /* This pair tracks the currently active CFA as reg+offset. When reg |
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2689 is drap_reg, we don't bother trying to record here the real CFA when |
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2690 it might really be a DW_CFA_def_cfa_expression. */ |
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2691 rtx cfa_reg; |
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2692 HOST_WIDE_INT cfa_offset; |
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2693 |
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2694 /* The current offset (canonically from the CFA) of ESP and EBP. |
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2695 When stack frame re-alignment is active, these may not be relative |
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2696 to the CFA. However, in all cases they are relative to the offsets |
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2697 of the saved registers stored in ix86_frame. */ |
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2698 HOST_WIDE_INT sp_offset; |
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2699 HOST_WIDE_INT fp_offset; |
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2700 |
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2701 /* The size of the red-zone that may be assumed for the purposes of |
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2702 eliding register restore notes in the epilogue. This may be zero |
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2703 if no red-zone is in effect, or may be reduced from the real |
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2704 red-zone value by a maximum runtime stack re-alignment value. */ |
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2705 int red_zone_offset; |
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2706 |
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2707 /* Indicate whether each of ESP, EBP or DRAP currently holds a valid |
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2708 value within the frame. If false then the offset above should be |
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2709 ignored. Note that DRAP, if valid, *always* points to the CFA and |
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2710 thus has an offset of zero. */ |
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2711 BOOL_BITFIELD sp_valid : 1; |
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2712 BOOL_BITFIELD fp_valid : 1; |
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2713 BOOL_BITFIELD drap_valid : 1; |
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2714 |
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2715 /* Indicate whether the local stack frame has been re-aligned. When |
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2716 set, the SP/FP offsets above are relative to the aligned frame |
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2717 and not the CFA. */ |
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2718 BOOL_BITFIELD realigned : 1; |
111 | 2719 |
2720 /* Indicates whether the stack pointer has been re-aligned. When set, | |
2721 SP/FP continue to be relative to the CFA, but the stack pointer | |
2722 should only be used for offsets > sp_realigned_offset, while | |
2723 the frame pointer should be used for offsets <= sp_realigned_fp_last. | |
2724 The flags realigned and sp_realigned are mutually exclusive. */ | |
2725 BOOL_BITFIELD sp_realigned : 1; | |
2726 | |
2727 /* If sp_realigned is set, this is the last valid offset from the CFA | |
2728 that can be used for access with the frame pointer. */ | |
2729 HOST_WIDE_INT sp_realigned_fp_last; | |
2730 | |
2731 /* If sp_realigned is set, this is the offset from the CFA that the stack | |
2732 pointer was realigned, and may or may not be equal to sp_realigned_fp_last. | |
2733 Access via the stack pointer is only valid for offsets that are greater than | |
2734 this value. */ | |
2735 HOST_WIDE_INT sp_realigned_offset; | |
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2736 }; |
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2737 |
67
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2738 /* Private to winnt.c. */ |
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2739 struct seh_frame_state; |
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2740 |
111 | 2741 enum function_type |
2742 { | |
2743 TYPE_UNKNOWN = 0, | |
2744 TYPE_NORMAL, | |
2745 /* The current function is an interrupt service routine with a | |
2746 pointer argument as specified by the "interrupt" attribute. */ | |
2747 TYPE_INTERRUPT, | |
2748 /* The current function is an interrupt service routine with a | |
2749 pointer argument and an integer argument as specified by the | |
2750 "interrupt" attribute. */ | |
2751 TYPE_EXCEPTION | |
2752 }; | |
2753 | |
55
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2754 struct GTY(()) machine_function { |
0 | 2755 struct stack_local_entry *stack_locals; |
2756 int varargs_gpr_size; | |
2757 int varargs_fpr_size; | |
2758 int optimize_mode_switching[MAX_386_ENTITIES]; | |
55
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2759 |
111 | 2760 /* Cached initial frame layout for the current function. */ |
2761 struct ix86_frame frame; | |
55
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2762 |
67
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2763 /* For -fsplit-stack support: A stack local which holds a pointer to |
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2764 the stack arguments for a function with a variable number of |
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2765 arguments. This is set at the start of the function and is used |
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2766 to initialize the overflow_arg_area field of the va_list |
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2767 structure. */ |
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2768 rtx split_stack_varargs_pointer; |
55
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2769 |
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2770 /* This value is used for amd64 targets and specifies the current abi |
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2771 to be used. MS_ABI means ms abi. Otherwise SYSV_ABI means sysv abi. */ |
67
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2772 ENUM_BITFIELD(calling_abi) call_abi : 8; |
55
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2773 |
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2774 /* Nonzero if the function accesses a previous frame. */ |
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2775 BOOL_BITFIELD accesses_prev_frame : 1; |
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2776 |
0 | 2777 /* Set by ix86_compute_frame_layout and used by prologue/epilogue |
2778 expander to determine the style used. */ | |
55
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2779 BOOL_BITFIELD use_fast_prologue_epilogue : 1; |
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2780 |
111 | 2781 /* Nonzero if the current function calls pc thunk and |
2782 must not use the red zone. */ | |
2783 BOOL_BITFIELD pc_thunk_call_expanded : 1; | |
2784 | |
0 | 2785 /* If true, the current function needs the default PIC register, not |
2786 an alternate register (on x86) and must not use the red zone (on | |
2787 x86_64), even if it's a leaf function. We don't want the | |
2788 function to be regarded as non-leaf because TLS calls need not | |
2789 affect register allocation. This flag is set when a TLS call | |
2790 instruction is expanded within a function, and never reset, even | |
2791 if all such instructions are optimized away. Use the | |
2792 ix86_current_function_calls_tls_descriptor macro for a better | |
2793 approximation. */ | |
55
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2794 BOOL_BITFIELD tls_descriptor_call_expanded_p : 1; |
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2795 |
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2796 /* If true, the current function has a STATIC_CHAIN is placed on the |
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2797 stack below the return address. */ |
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2798 BOOL_BITFIELD static_chain_on_stack : 1; |
67
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2799 |
111 | 2800 /* If true, it is safe to not save/restore DRAP register. */ |
2801 BOOL_BITFIELD no_drap_save_restore : 1; | |
2802 | |
2803 /* Function type. */ | |
2804 ENUM_BITFIELD(function_type) func_type : 2; | |
2805 | |
131 | 2806 /* How to generate indirec branch. */ |
2807 ENUM_BITFIELD(indirect_branch) indirect_branch_type : 3; | |
2808 | |
2809 /* If true, the current function has local indirect jumps, like | |
2810 "indirect_jump" or "tablejump". */ | |
2811 BOOL_BITFIELD has_local_indirect_jump : 1; | |
2812 | |
2813 /* How to generate function return. */ | |
2814 ENUM_BITFIELD(indirect_branch) function_return_type : 3; | |
2815 | |
111 | 2816 /* If true, the current function is a function specified with |
2817 the "interrupt" or "no_caller_saved_registers" attribute. */ | |
2818 BOOL_BITFIELD no_caller_saved_registers : 1; | |
2819 | |
2820 /* If true, there is register available for argument passing. This | |
2821 is used only in ix86_function_ok_for_sibcall by 32-bit to determine | |
2822 if there is scratch register available for indirect sibcall. In | |
2823 64-bit, rax, r10 and r11 are scratch registers which aren't used to | |
2824 pass arguments and can be used for indirect sibcall. */ | |
2825 BOOL_BITFIELD arg_reg_available : 1; | |
2826 | |
2827 /* If true, we're out-of-lining reg save/restore for regs clobbered | |
2828 by 64-bit ms_abi functions calling a sysv_abi function. */ | |
2829 BOOL_BITFIELD call_ms2sysv : 1; | |
2830 | |
2831 /* If true, the incoming 16-byte aligned stack has an offset (of 8) and | |
2832 needs padding prior to out-of-line stub save/restore area. */ | |
2833 BOOL_BITFIELD call_ms2sysv_pad_in : 1; | |
2834 | |
2835 /* This is the number of extra registers saved by stub (valid range is | |
2836 0-6). Each additional register is only saved/restored by the stubs | |
2837 if all successive ones are. (Will always be zero when using a hard | |
2838 frame pointer.) */ | |
2839 unsigned int call_ms2sysv_extra_regs:3; | |
2840 | |
2841 /* Nonzero if the function places outgoing arguments on stack. */ | |
2842 BOOL_BITFIELD outgoing_args_on_stack : 1; | |
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2843 |
131 | 2844 /* If true, ENDBR is queued at function entrance. */ |
2845 BOOL_BITFIELD endbr_queued_at_entrance : 1; | |
2846 | |
145 | 2847 /* True if the function needs a stack frame. */ |
2848 BOOL_BITFIELD stack_frame_required : 1; | |
2849 | |
131 | 2850 /* The largest alignment, in bytes, of stack slot actually used. */ |
2851 unsigned int max_used_stack_alignment; | |
2852 | |
67
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2853 /* During prologue/epilogue generation, the current frame state. |
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2854 Otherwise, the frame state at the end of the prologue. */ |
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2855 struct machine_frame_state fs; |
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2856 |
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2857 /* During SEH output, this is non-null. */ |
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2858 struct seh_frame_state * GTY((skip(""))) seh; |
0 | 2859 }; |
145 | 2860 |
2861 extern GTY(()) tree sysv_va_list_type_node; | |
2862 extern GTY(()) tree ms_va_list_type_node; | |
55
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2863 #endif |
0 | 2864 |
2865 #define ix86_stack_locals (cfun->machine->stack_locals) | |
2866 #define ix86_varargs_gpr_size (cfun->machine->varargs_gpr_size) | |
2867 #define ix86_varargs_fpr_size (cfun->machine->varargs_fpr_size) | |
2868 #define ix86_optimize_mode_switching (cfun->machine->optimize_mode_switching) | |
111 | 2869 #define ix86_pc_thunk_call_expanded (cfun->machine->pc_thunk_call_expanded) |
0 | 2870 #define ix86_tls_descriptor_calls_expanded_in_cfun \ |
2871 (cfun->machine->tls_descriptor_call_expanded_p) | |
2872 /* Since tls_descriptor_call_expanded is not cleared, even if all TLS | |
2873 calls are optimized away, we try to detect cases in which it was | |
2874 optimized away. Since such instructions (use (reg REG_SP)), we can | |
2875 verify whether there's any such instruction live by testing that | |
2876 REG_SP is live. */ | |
2877 #define ix86_current_function_calls_tls_descriptor \ | |
2878 (ix86_tls_descriptor_calls_expanded_in_cfun && df_regs_ever_live_p (SP_REG)) | |
55
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2879 #define ix86_static_chain_on_stack (cfun->machine->static_chain_on_stack) |
111 | 2880 #define ix86_red_zone_size (cfun->machine->frame.red_zone_size) |
0 | 2881 |
2882 /* Control behavior of x86_file_start. */ | |
2883 #define X86_FILE_START_VERSION_DIRECTIVE false | |
2884 #define X86_FILE_START_FLTUSED false | |
2885 | |
2886 /* Flag to mark data that is in the large address area. */ | |
2887 #define SYMBOL_FLAG_FAR_ADDR (SYMBOL_FLAG_MACH_DEP << 0) | |
2888 #define SYMBOL_REF_FAR_ADDR_P(X) \ | |
2889 ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_FAR_ADDR) != 0) | |
2890 | |
2891 /* Flags to mark dllimport/dllexport. Used by PE ports, but handy to | |
2892 have defined always, to avoid ifdefing. */ | |
2893 #define SYMBOL_FLAG_DLLIMPORT (SYMBOL_FLAG_MACH_DEP << 1) | |
2894 #define SYMBOL_REF_DLLIMPORT_P(X) \ | |
2895 ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_DLLIMPORT) != 0) | |
2896 | |
2897 #define SYMBOL_FLAG_DLLEXPORT (SYMBOL_FLAG_MACH_DEP << 2) | |
2898 #define SYMBOL_REF_DLLEXPORT_P(X) \ | |
2899 ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_DLLEXPORT) != 0) | |
2900 | |
111 | 2901 #define SYMBOL_FLAG_STUBVAR (SYMBOL_FLAG_MACH_DEP << 4) |
2902 #define SYMBOL_REF_STUBVAR_P(X) \ | |
2903 ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_STUBVAR) != 0) | |
2904 | |
67
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2905 extern void debug_ready_dispatch (void); |
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2906 extern void debug_dispatch_window (int); |
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2907 |
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2908 /* The value at zero is only defined for the BMI instructions |
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2909 LZCNT and TZCNT, not the BSR/BSF insns in the original isa. */ |
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2910 #define CTZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) \ |
111 | 2911 ((VALUE) = GET_MODE_BITSIZE (MODE), TARGET_BMI ? 1 : 0) |
67
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2912 #define CLZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) \ |
111 | 2913 ((VALUE) = GET_MODE_BITSIZE (MODE), TARGET_LZCNT ? 1 : 0) |
2914 | |
2915 | |
2916 /* Flags returned by ix86_get_callcvt (). */ | |
2917 #define IX86_CALLCVT_CDECL 0x1 | |
2918 #define IX86_CALLCVT_STDCALL 0x2 | |
2919 #define IX86_CALLCVT_FASTCALL 0x4 | |
2920 #define IX86_CALLCVT_THISCALL 0x8 | |
2921 #define IX86_CALLCVT_REGPARM 0x10 | |
2922 #define IX86_CALLCVT_SSEREGPARM 0x20 | |
2923 | |
2924 #define IX86_BASE_CALLCVT(FLAGS) \ | |
2925 ((FLAGS) & (IX86_CALLCVT_CDECL | IX86_CALLCVT_STDCALL \ | |
2926 | IX86_CALLCVT_FASTCALL | IX86_CALLCVT_THISCALL)) | |
2927 | |
2928 #define RECIP_MASK_NONE 0x00 | |
2929 #define RECIP_MASK_DIV 0x01 | |
2930 #define RECIP_MASK_SQRT 0x02 | |
2931 #define RECIP_MASK_VEC_DIV 0x04 | |
2932 #define RECIP_MASK_VEC_SQRT 0x08 | |
2933 #define RECIP_MASK_ALL (RECIP_MASK_DIV | RECIP_MASK_SQRT \ | |
2934 | RECIP_MASK_VEC_DIV | RECIP_MASK_VEC_SQRT) | |
2935 #define RECIP_MASK_DEFAULT (RECIP_MASK_VEC_DIV | RECIP_MASK_VEC_SQRT) | |
2936 | |
2937 #define TARGET_RECIP_DIV ((recip_mask & RECIP_MASK_DIV) != 0) | |
2938 #define TARGET_RECIP_SQRT ((recip_mask & RECIP_MASK_SQRT) != 0) | |
2939 #define TARGET_RECIP_VEC_DIV ((recip_mask & RECIP_MASK_VEC_DIV) != 0) | |
2940 #define TARGET_RECIP_VEC_SQRT ((recip_mask & RECIP_MASK_VEC_SQRT) != 0) | |
2941 | |
131 | 2942 /* Use 128-bit AVX instructions in the auto-vectorizer. */ |
2943 #define TARGET_PREFER_AVX128 (prefer_vector_width_type == PVW_AVX128) | |
2944 /* Use 256-bit AVX instructions in the auto-vectorizer. */ | |
2945 #define TARGET_PREFER_AVX256 (TARGET_PREFER_AVX128 \ | |
2946 || prefer_vector_width_type == PVW_AVX256) | |
2947 | |
2948 #define TARGET_INDIRECT_BRANCH_REGISTER \ | |
2949 (ix86_indirect_branch_register \ | |
2950 || cfun->machine->indirect_branch_type != indirect_branch_keep) | |
2951 | |
111 | 2952 #define IX86_HLE_ACQUIRE (1 << 16) |
2953 #define IX86_HLE_RELEASE (1 << 17) | |
2954 | |
2955 /* For switching between functions with different target attributes. */ | |
2956 #define SWITCHABLE_TARGET 1 | |
2957 | |
2958 #define TARGET_SUPPORTS_WIDE_INT 1 | |
0 | 2959 |
145 | 2960 #if !defined(GENERATOR_FILE) && !defined(IN_LIBGCC2) |
2961 extern enum attr_cpu ix86_schedule; | |
2962 | |
2963 #define NUM_X86_64_MS_CLOBBERED_REGS 12 | |
2964 #endif | |
2965 | |
0 | 2966 /* |
2967 Local variables: | |
2968 version-control: t | |
2969 End: | |
2970 */ |