1 /* Copyright (C) 1988-2019 Free Software Foundation, Inc.
3 This file is part of GCC.
5 GCC is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3, or (at your option)
10 GCC is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GCC; see the file COPYING3. If not see
17 <http://www.gnu.org/licenses/>. */
19 #define IN_TARGET_CODE 1
23 #include "coretypes.h"
33 #include "stringpool.h"
40 #include "diagnostic.h"
43 #include "fold-const.h"
46 #include "stor-layout.h"
49 #include "insn-attr.h"
55 #include "common/common-target.h"
56 #include "langhooks.h"
60 #include "tm-constrs.h"
63 #include "sched-int.h"
65 #include "tree-pass.h"
67 #include "pass_manager.h"
68 #include "target-globals.h"
69 #include "gimple-iterator.h"
70 #include "tree-vectorizer.h"
71 #include "shrink-wrap.h"
74 #include "tree-iterator.h"
76 #include "case-cfn-macros.h"
78 #include "fold-const-call.h"
80 #include "tree-ssanames.h"
82 #include "selftest-rtl.h"
83 #include "print-rtl.h"
86 #include "symbol-summary.h"
88 #include "ipa-fnsummary.h"
89 #include "wide-int-bitmask.h"
90 #include "tree-vector-builder.h"
92 #include "dwarf2out.h"
93 #include "i386-options.h"
95 #include "x86-tune-costs.h"
97 #ifndef SUBTARGET32_DEFAULT_CPU
98 #define SUBTARGET32_DEFAULT_CPU "i386"
101 /* Processor feature/optimization bitmasks. */
102 #define m_386 (HOST_WIDE_INT_1U<<PROCESSOR_I386)
103 #define m_486 (HOST_WIDE_INT_1U<<PROCESSOR_I486)
104 #define m_PENT (HOST_WIDE_INT_1U<<PROCESSOR_PENTIUM)
105 #define m_LAKEMONT (HOST_WIDE_INT_1U<<PROCESSOR_LAKEMONT)
106 #define m_PPRO (HOST_WIDE_INT_1U<<PROCESSOR_PENTIUMPRO)
107 #define m_PENT4 (HOST_WIDE_INT_1U<<PROCESSOR_PENTIUM4)
108 #define m_NOCONA (HOST_WIDE_INT_1U<<PROCESSOR_NOCONA)
109 #define m_P4_NOCONA (m_PENT4 | m_NOCONA)
110 #define m_CORE2 (HOST_WIDE_INT_1U<<PROCESSOR_CORE2)
111 #define m_NEHALEM (HOST_WIDE_INT_1U<<PROCESSOR_NEHALEM)
112 #define m_SANDYBRIDGE (HOST_WIDE_INT_1U<<PROCESSOR_SANDYBRIDGE)
113 #define m_HASWELL (HOST_WIDE_INT_1U<<PROCESSOR_HASWELL)
114 #define m_BONNELL (HOST_WIDE_INT_1U<<PROCESSOR_BONNELL)
115 #define m_SILVERMONT (HOST_WIDE_INT_1U<<PROCESSOR_SILVERMONT)
116 #define m_KNL (HOST_WIDE_INT_1U<<PROCESSOR_KNL)
117 #define m_KNM (HOST_WIDE_INT_1U<<PROCESSOR_KNM)
118 #define m_SKYLAKE (HOST_WIDE_INT_1U<<PROCESSOR_SKYLAKE)
119 #define m_SKYLAKE_AVX512 (HOST_WIDE_INT_1U<<PROCESSOR_SKYLAKE_AVX512)
120 #define m_CANNONLAKE (HOST_WIDE_INT_1U<<PROCESSOR_CANNONLAKE)
121 #define m_ICELAKE_CLIENT (HOST_WIDE_INT_1U<<PROCESSOR_ICELAKE_CLIENT)
122 #define m_ICELAKE_SERVER (HOST_WIDE_INT_1U<<PROCESSOR_ICELAKE_SERVER)
123 #define m_CASCADELAKE (HOST_WIDE_INT_1U<<PROCESSOR_CASCADELAKE)
124 #define m_TIGERLAKE (HOST_WIDE_INT_1U<<PROCESSOR_TIGERLAKE)
125 #define m_COOPERLAKE (HOST_WIDE_INT_1U<<PROCESSOR_COOPERLAKE)
126 #define m_CORE_AVX512 (m_SKYLAKE_AVX512 | m_CANNONLAKE \
127 | m_ICELAKE_CLIENT | m_ICELAKE_SERVER | m_CASCADELAKE \
128 | m_TIGERLAKE | m_COOPERLAKE)
129 #define m_CORE_AVX2 (m_HASWELL | m_SKYLAKE | m_CORE_AVX512)
130 #define m_CORE_ALL (m_CORE2 | m_NEHALEM | m_SANDYBRIDGE | m_CORE_AVX2)
131 #define m_GOLDMONT (HOST_WIDE_INT_1U<<PROCESSOR_GOLDMONT)
132 #define m_GOLDMONT_PLUS (HOST_WIDE_INT_1U<<PROCESSOR_GOLDMONT_PLUS)
133 #define m_TREMONT (HOST_WIDE_INT_1U<<PROCESSOR_TREMONT)
134 #define m_INTEL (HOST_WIDE_INT_1U<<PROCESSOR_INTEL)
136 #define m_GEODE (HOST_WIDE_INT_1U<<PROCESSOR_GEODE)
137 #define m_K6 (HOST_WIDE_INT_1U<<PROCESSOR_K6)
138 #define m_K6_GEODE (m_K6 | m_GEODE)
139 #define m_K8 (HOST_WIDE_INT_1U<<PROCESSOR_K8)
140 #define m_ATHLON (HOST_WIDE_INT_1U<<PROCESSOR_ATHLON)
141 #define m_ATHLON_K8 (m_K8 | m_ATHLON)
142 #define m_AMDFAM10 (HOST_WIDE_INT_1U<<PROCESSOR_AMDFAM10)
143 #define m_BDVER1 (HOST_WIDE_INT_1U<<PROCESSOR_BDVER1)
144 #define m_BDVER2 (HOST_WIDE_INT_1U<<PROCESSOR_BDVER2)
145 #define m_BDVER3 (HOST_WIDE_INT_1U<<PROCESSOR_BDVER3)
146 #define m_BDVER4 (HOST_WIDE_INT_1U<<PROCESSOR_BDVER4)
147 #define m_ZNVER1 (HOST_WIDE_INT_1U<<PROCESSOR_ZNVER1)
148 #define m_ZNVER2 (HOST_WIDE_INT_1U<<PROCESSOR_ZNVER2)
149 #define m_BTVER1 (HOST_WIDE_INT_1U<<PROCESSOR_BTVER1)
150 #define m_BTVER2 (HOST_WIDE_INT_1U<<PROCESSOR_BTVER2)
151 #define m_BDVER (m_BDVER1 | m_BDVER2 | m_BDVER3 | m_BDVER4)
152 #define m_BTVER (m_BTVER1 | m_BTVER2)
153 #define m_ZNVER (m_ZNVER1 | m_ZNVER2)
154 #define m_AMD_MULTIPLE (m_ATHLON_K8 | m_AMDFAM10 | m_BDVER | m_BTVER \
157 #define m_GENERIC (HOST_WIDE_INT_1U<<PROCESSOR_GENERIC)
159 const char* ix86_tune_feature_names
[X86_TUNE_LAST
] = {
161 #define DEF_TUNE(tune, name, selector) name,
162 #include "x86-tune.def"
166 /* Feature tests against the various tunings. */
167 unsigned char ix86_tune_features
[X86_TUNE_LAST
];
169 /* Feature tests against the various tunings used to create ix86_tune_features
170 based on the processor mask. */
171 static unsigned HOST_WIDE_INT initial_ix86_tune_features
[X86_TUNE_LAST
] = {
173 #define DEF_TUNE(tune, name, selector) selector,
174 #include "x86-tune.def"
178 /* Feature tests against the various architecture variations. */
179 unsigned char ix86_arch_features
[X86_ARCH_LAST
];
181 struct ix86_target_opts
183 const char *option
; /* option string */
184 HOST_WIDE_INT mask
; /* isa mask options */
187 /* This table is ordered so that options like -msse4.2 that imply other
188 ISAs come first. Target string will be displayed in the same order. */
189 static struct ix86_target_opts isa2_opts
[] =
191 { "-mcx16", OPTION_MASK_ISA_CX16
},
192 { "-mvaes", OPTION_MASK_ISA_VAES
},
193 { "-mrdpid", OPTION_MASK_ISA_RDPID
},
194 { "-mpconfig", OPTION_MASK_ISA_PCONFIG
},
195 { "-mwbnoinvd", OPTION_MASK_ISA_WBNOINVD
},
196 { "-mavx512vp2intersect", OPTION_MASK_ISA_AVX512VP2INTERSECT
},
197 { "-msgx", OPTION_MASK_ISA_SGX
},
198 { "-mavx5124vnniw", OPTION_MASK_ISA_AVX5124VNNIW
},
199 { "-mavx5124fmaps", OPTION_MASK_ISA_AVX5124FMAPS
},
200 { "-mhle", OPTION_MASK_ISA_HLE
},
201 { "-mmovbe", OPTION_MASK_ISA_MOVBE
},
202 { "-mclzero", OPTION_MASK_ISA_CLZERO
},
203 { "-mmwaitx", OPTION_MASK_ISA_MWAITX
},
204 { "-mmovdir64b", OPTION_MASK_ISA_MOVDIR64B
},
205 { "-mwaitpkg", OPTION_MASK_ISA_WAITPKG
},
206 { "-mcldemote", OPTION_MASK_ISA_CLDEMOTE
},
207 { "-mptwrite", OPTION_MASK_ISA_PTWRITE
},
208 { "-mavx512bf16", OPTION_MASK_ISA_AVX512BF16
},
209 { "-menqcmd", OPTION_MASK_ISA_ENQCMD
}
211 static struct ix86_target_opts isa_opts
[] =
213 { "-mavx512vpopcntdq", OPTION_MASK_ISA_AVX512VPOPCNTDQ
},
214 { "-mavx512bitalg", OPTION_MASK_ISA_AVX512BITALG
},
215 { "-mvpclmulqdq", OPTION_MASK_ISA_VPCLMULQDQ
},
216 { "-mgfni", OPTION_MASK_ISA_GFNI
},
217 { "-mavx512vnni", OPTION_MASK_ISA_AVX512VNNI
},
218 { "-mavx512vbmi2", OPTION_MASK_ISA_AVX512VBMI2
},
219 { "-mavx512vbmi", OPTION_MASK_ISA_AVX512VBMI
},
220 { "-mavx512ifma", OPTION_MASK_ISA_AVX512IFMA
},
221 { "-mavx512vl", OPTION_MASK_ISA_AVX512VL
},
222 { "-mavx512bw", OPTION_MASK_ISA_AVX512BW
},
223 { "-mavx512dq", OPTION_MASK_ISA_AVX512DQ
},
224 { "-mavx512er", OPTION_MASK_ISA_AVX512ER
},
225 { "-mavx512pf", OPTION_MASK_ISA_AVX512PF
},
226 { "-mavx512cd", OPTION_MASK_ISA_AVX512CD
},
227 { "-mavx512f", OPTION_MASK_ISA_AVX512F
},
228 { "-mavx2", OPTION_MASK_ISA_AVX2
},
229 { "-mfma", OPTION_MASK_ISA_FMA
},
230 { "-mxop", OPTION_MASK_ISA_XOP
},
231 { "-mfma4", OPTION_MASK_ISA_FMA4
},
232 { "-mf16c", OPTION_MASK_ISA_F16C
},
233 { "-mavx", OPTION_MASK_ISA_AVX
},
234 /*{ "-msse4" OPTION_MASK_ISA_SSE4 }, */
235 { "-msse4.2", OPTION_MASK_ISA_SSE4_2
},
236 { "-msse4.1", OPTION_MASK_ISA_SSE4_1
},
237 { "-msse4a", OPTION_MASK_ISA_SSE4A
},
238 { "-mssse3", OPTION_MASK_ISA_SSSE3
},
239 { "-msse3", OPTION_MASK_ISA_SSE3
},
240 { "-maes", OPTION_MASK_ISA_AES
},
241 { "-msha", OPTION_MASK_ISA_SHA
},
242 { "-mpclmul", OPTION_MASK_ISA_PCLMUL
},
243 { "-msse2", OPTION_MASK_ISA_SSE2
},
244 { "-msse", OPTION_MASK_ISA_SSE
},
245 { "-m3dnowa", OPTION_MASK_ISA_3DNOW_A
},
246 { "-m3dnow", OPTION_MASK_ISA_3DNOW
},
247 { "-mmmx", OPTION_MASK_ISA_MMX
},
248 { "-mrtm", OPTION_MASK_ISA_RTM
},
249 { "-mprfchw", OPTION_MASK_ISA_PRFCHW
},
250 { "-mrdseed", OPTION_MASK_ISA_RDSEED
},
251 { "-madx", OPTION_MASK_ISA_ADX
},
252 { "-mprefetchwt1", OPTION_MASK_ISA_PREFETCHWT1
},
253 { "-mclflushopt", OPTION_MASK_ISA_CLFLUSHOPT
},
254 { "-mxsaves", OPTION_MASK_ISA_XSAVES
},
255 { "-mxsavec", OPTION_MASK_ISA_XSAVEC
},
256 { "-mxsaveopt", OPTION_MASK_ISA_XSAVEOPT
},
257 { "-mxsave", OPTION_MASK_ISA_XSAVE
},
258 { "-mabm", OPTION_MASK_ISA_ABM
},
259 { "-mbmi", OPTION_MASK_ISA_BMI
},
260 { "-mbmi2", OPTION_MASK_ISA_BMI2
},
261 { "-mlzcnt", OPTION_MASK_ISA_LZCNT
},
262 { "-mtbm", OPTION_MASK_ISA_TBM
},
263 { "-mpopcnt", OPTION_MASK_ISA_POPCNT
},
264 { "-msahf", OPTION_MASK_ISA_SAHF
},
265 { "-mcrc32", OPTION_MASK_ISA_CRC32
},
266 { "-mfsgsbase", OPTION_MASK_ISA_FSGSBASE
},
267 { "-mrdrnd", OPTION_MASK_ISA_RDRND
},
268 { "-mpku", OPTION_MASK_ISA_PKU
},
269 { "-mlwp", OPTION_MASK_ISA_LWP
},
270 { "-mfxsr", OPTION_MASK_ISA_FXSR
},
271 { "-mclwb", OPTION_MASK_ISA_CLWB
},
272 { "-mshstk", OPTION_MASK_ISA_SHSTK
},
273 { "-mmovdiri", OPTION_MASK_ISA_MOVDIRI
}
276 /* Return 1 if TRAIT NAME is present in the OpenMP context's
277 device trait set, return 0 if not present in any OpenMP context in the
278 whole translation unit, or -1 if not present in the current OpenMP context
279 but might be present in another OpenMP context in the same TU. */
282 ix86_omp_device_kind_arch_isa (enum omp_device_kind_arch_isa trait
,
287 case omp_device_kind
:
288 return strcmp (name
, "cpu") == 0;
289 case omp_device_arch
:
290 if (strcmp (name
, "x86") == 0)
295 return strcmp (name
, "x32") == 0;
297 return strcmp (name
, "x86_64") == 0;
299 if (strcmp (name
, "ia32") == 0 || strcmp (name
, "i386") == 0)
301 if (strcmp (name
, "i486") == 0)
302 return ix86_arch
!= PROCESSOR_I386
? 1 : -1;
303 if (strcmp (name
, "i586") == 0)
304 return (ix86_arch
!= PROCESSOR_I386
305 && ix86_arch
!= PROCESSOR_I486
) ? 1 : -1;
306 if (strcmp (name
, "i686") == 0)
307 return (ix86_arch
!= PROCESSOR_I386
308 && ix86_arch
!= PROCESSOR_I486
309 && ix86_arch
!= PROCESSOR_LAKEMONT
310 && ix86_arch
!= PROCESSOR_PENTIUM
) ? 1 : -1;
313 for (int i
= 0; i
< 2; i
++)
315 struct ix86_target_opts
*opts
= i
? isa2_opts
: isa_opts
;
316 size_t nopts
= i
? ARRAY_SIZE (isa2_opts
) : ARRAY_SIZE (isa_opts
);
317 HOST_WIDE_INT mask
= i
? ix86_isa_flags2
: ix86_isa_flags
;
318 for (size_t n
= 0; n
< nopts
; n
++)
320 const char *option
= opts
[n
].option
+ 2;
321 /* -msse4.2 and -msse4.1 options contain dot, which is not valid
322 in identifiers. Use underscore instead, and handle sse4
323 as an alias to sse4_2. */
324 if (opts
[n
].mask
== OPTION_MASK_ISA_SSE4_2
)
327 if (strcmp (name
, "sse4") == 0)
328 return (mask
& opts
[n
].mask
) != 0 ? 1 : -1;
330 else if (opts
[n
].mask
== OPTION_MASK_ISA_SSE4_1
)
332 if (strcmp (name
, option
) == 0)
333 return (mask
& opts
[n
].mask
) != 0 ? 1 : -1;
342 /* Return a string that documents the current -m options. The caller is
343 responsible for freeing the string. */
346 ix86_target_string (HOST_WIDE_INT isa
, HOST_WIDE_INT isa2
,
347 int flags
, int flags2
,
348 const char *arch
, const char *tune
,
349 enum fpmath_unit fpmath
, bool add_nl_p
, bool add_abi_p
)
352 static struct ix86_target_opts flag_opts
[] =
354 { "-m128bit-long-double", MASK_128BIT_LONG_DOUBLE
},
355 { "-mlong-double-128", MASK_LONG_DOUBLE_128
},
356 { "-mlong-double-64", MASK_LONG_DOUBLE_64
},
357 { "-m80387", MASK_80387
},
358 { "-maccumulate-outgoing-args", MASK_ACCUMULATE_OUTGOING_ARGS
},
359 { "-malign-double", MASK_ALIGN_DOUBLE
},
360 { "-mcld", MASK_CLD
},
361 { "-mfp-ret-in-387", MASK_FLOAT_RETURNS
},
362 { "-mieee-fp", MASK_IEEE_FP
},
363 { "-minline-all-stringops", MASK_INLINE_ALL_STRINGOPS
},
364 { "-minline-stringops-dynamically", MASK_INLINE_STRINGOPS_DYNAMICALLY
},
365 { "-mms-bitfields", MASK_MS_BITFIELD_LAYOUT
},
366 { "-mno-align-stringops", MASK_NO_ALIGN_STRINGOPS
},
367 { "-mno-fancy-math-387", MASK_NO_FANCY_MATH_387
},
368 { "-mno-push-args", MASK_NO_PUSH_ARGS
},
369 { "-mno-red-zone", MASK_NO_RED_ZONE
},
370 { "-momit-leaf-frame-pointer", MASK_OMIT_LEAF_FRAME_POINTER
},
371 { "-mrecip", MASK_RECIP
},
372 { "-mrtd", MASK_RTD
},
373 { "-msseregparm", MASK_SSEREGPARM
},
374 { "-mstack-arg-probe", MASK_STACK_PROBE
},
375 { "-mtls-direct-seg-refs", MASK_TLS_DIRECT_SEG_REFS
},
376 { "-mvect8-ret-in-mem", MASK_VECT8_RETURNS
},
377 { "-m8bit-idiv", MASK_USE_8BIT_IDIV
},
378 { "-mvzeroupper", MASK_VZEROUPPER
},
379 { "-mstv", MASK_STV
},
380 { "-mavx256-split-unaligned-load", MASK_AVX256_SPLIT_UNALIGNED_LOAD
},
381 { "-mavx256-split-unaligned-store", MASK_AVX256_SPLIT_UNALIGNED_STORE
},
382 { "-mcall-ms2sysv-xlogues", MASK_CALL_MS2SYSV_XLOGUES
}
385 /* Additional flag options. */
386 static struct ix86_target_opts flag2_opts
[] =
388 { "-mgeneral-regs-only", OPTION_MASK_GENERAL_REGS_ONLY
}
391 const char *opts
[ARRAY_SIZE (isa_opts
) + ARRAY_SIZE (isa2_opts
)
392 + ARRAY_SIZE (flag_opts
) + ARRAY_SIZE (flag2_opts
) + 6][2];
396 char flags_other
[40];
397 char flags2_other
[40];
407 memset (opts
, '\0', sizeof (opts
));
409 /* Add -march= option. */
412 opts
[num
][0] = "-march=";
413 opts
[num
++][1] = arch
;
416 /* Add -mtune= option. */
419 opts
[num
][0] = "-mtune=";
420 opts
[num
++][1] = tune
;
423 /* Add -m32/-m64/-mx32. */
426 if ((isa
& OPTION_MASK_ISA_64BIT
) != 0)
428 if ((isa
& OPTION_MASK_ABI_64
) != 0)
435 opts
[num
++][0] = abi
;
437 isa
&= ~(OPTION_MASK_ISA_64BIT
| OPTION_MASK_ABI_64
| OPTION_MASK_ABI_X32
);
439 /* Pick out the options in isa2 options. */
440 for (i
= 0; i
< ARRAY_SIZE (isa2_opts
); i
++)
442 if ((isa2
& isa2_opts
[i
].mask
) != 0)
444 opts
[num
++][0] = isa2_opts
[i
].option
;
445 isa2
&= ~ isa2_opts
[i
].mask
;
449 if (isa2
&& add_nl_p
)
451 opts
[num
++][0] = isa2_other
;
452 sprintf (isa2_other
, "(other isa2: %#" HOST_WIDE_INT_PRINT
"x)", isa2
);
455 /* Pick out the options in isa options. */
456 for (i
= 0; i
< ARRAY_SIZE (isa_opts
); i
++)
458 if ((isa
& isa_opts
[i
].mask
) != 0)
460 opts
[num
++][0] = isa_opts
[i
].option
;
461 isa
&= ~ isa_opts
[i
].mask
;
467 opts
[num
++][0] = isa_other
;
468 sprintf (isa_other
, "(other isa: %#" HOST_WIDE_INT_PRINT
"x)", isa
);
471 /* Add flag options. */
472 for (i
= 0; i
< ARRAY_SIZE (flag_opts
); i
++)
474 if ((flags
& flag_opts
[i
].mask
) != 0)
476 opts
[num
++][0] = flag_opts
[i
].option
;
477 flags
&= ~ flag_opts
[i
].mask
;
481 if (flags
&& add_nl_p
)
483 opts
[num
++][0] = flags_other
;
484 sprintf (flags_other
, "(other flags: %#x)", flags
);
487 /* Add additional flag options. */
488 for (i
= 0; i
< ARRAY_SIZE (flag2_opts
); i
++)
490 if ((flags2
& flag2_opts
[i
].mask
) != 0)
492 opts
[num
++][0] = flag2_opts
[i
].option
;
493 flags2
&= ~ flag2_opts
[i
].mask
;
497 if (flags2
&& add_nl_p
)
499 opts
[num
++][0] = flags2_other
;
500 sprintf (flags2_other
, "(other flags2: %#x)", flags2
);
503 /* Add -fpmath= option. */
506 opts
[num
][0] = "-mfpmath=";
507 switch ((int) fpmath
)
510 opts
[num
++][1] = "387";
514 opts
[num
++][1] = "sse";
517 case FPMATH_387
| FPMATH_SSE
:
518 opts
[num
++][1] = "sse+387";
530 gcc_assert (num
< ARRAY_SIZE (opts
));
532 /* Size the string. */
534 sep_len
= (add_nl_p
) ? 3 : 1;
535 for (i
= 0; i
< num
; i
++)
538 for (j
= 0; j
< 2; j
++)
540 len
+= strlen (opts
[i
][j
]);
543 /* Build the string. */
544 ret
= ptr
= (char *) xmalloc (len
);
547 for (i
= 0; i
< num
; i
++)
551 for (j
= 0; j
< 2; j
++)
552 len2
[j
] = (opts
[i
][j
]) ? strlen (opts
[i
][j
]) : 0;
559 if (add_nl_p
&& line_len
+ len2
[0] + len2
[1] > 70)
567 for (j
= 0; j
< 2; j
++)
570 memcpy (ptr
, opts
[i
][j
], len2
[j
]);
577 gcc_assert (ret
+ len
>= ptr
);
582 /* Function that is callable from the debugger to print the current
584 void ATTRIBUTE_UNUSED
585 ix86_debug_options (void)
587 char *opts
= ix86_target_string (ix86_isa_flags
, ix86_isa_flags2
,
588 target_flags
, ix86_target_flags
,
589 ix86_arch_string
,ix86_tune_string
,
590 ix86_fpmath
, true, true);
594 fprintf (stderr
, "%s\n\n", opts
);
598 fputs ("<no options>\n\n", stderr
);
603 /* Save the current options */
606 ix86_function_specific_save (struct cl_target_option
*ptr
,
607 struct gcc_options
*opts
)
609 ptr
->arch
= ix86_arch
;
610 ptr
->schedule
= ix86_schedule
;
611 ptr
->prefetch_sse
= x86_prefetch_sse
;
612 ptr
->tune
= ix86_tune
;
613 ptr
->branch_cost
= ix86_branch_cost
;
614 ptr
->tune_defaulted
= ix86_tune_defaulted
;
615 ptr
->arch_specified
= ix86_arch_specified
;
616 ptr
->x_ix86_isa_flags_explicit
= opts
->x_ix86_isa_flags_explicit
;
617 ptr
->x_ix86_isa_flags2_explicit
= opts
->x_ix86_isa_flags2_explicit
;
618 ptr
->x_recip_mask_explicit
= opts
->x_recip_mask_explicit
;
619 ptr
->x_ix86_arch_string
= opts
->x_ix86_arch_string
;
620 ptr
->x_ix86_tune_string
= opts
->x_ix86_tune_string
;
621 ptr
->x_ix86_cmodel
= opts
->x_ix86_cmodel
;
622 ptr
->x_ix86_abi
= opts
->x_ix86_abi
;
623 ptr
->x_ix86_asm_dialect
= opts
->x_ix86_asm_dialect
;
624 ptr
->x_ix86_branch_cost
= opts
->x_ix86_branch_cost
;
625 ptr
->x_ix86_dump_tunes
= opts
->x_ix86_dump_tunes
;
626 ptr
->x_ix86_force_align_arg_pointer
= opts
->x_ix86_force_align_arg_pointer
;
627 ptr
->x_ix86_force_drap
= opts
->x_ix86_force_drap
;
628 ptr
->x_ix86_incoming_stack_boundary_arg
= opts
->x_ix86_incoming_stack_boundary_arg
;
629 ptr
->x_ix86_pmode
= opts
->x_ix86_pmode
;
630 ptr
->x_ix86_preferred_stack_boundary_arg
= opts
->x_ix86_preferred_stack_boundary_arg
;
631 ptr
->x_ix86_recip_name
= opts
->x_ix86_recip_name
;
632 ptr
->x_ix86_regparm
= opts
->x_ix86_regparm
;
633 ptr
->x_ix86_section_threshold
= opts
->x_ix86_section_threshold
;
634 ptr
->x_ix86_sse2avx
= opts
->x_ix86_sse2avx
;
635 ptr
->x_ix86_stack_protector_guard
= opts
->x_ix86_stack_protector_guard
;
636 ptr
->x_ix86_stringop_alg
= opts
->x_ix86_stringop_alg
;
637 ptr
->x_ix86_tls_dialect
= opts
->x_ix86_tls_dialect
;
638 ptr
->x_ix86_tune_ctrl_string
= opts
->x_ix86_tune_ctrl_string
;
639 ptr
->x_ix86_tune_memcpy_strategy
= opts
->x_ix86_tune_memcpy_strategy
;
640 ptr
->x_ix86_tune_memset_strategy
= opts
->x_ix86_tune_memset_strategy
;
641 ptr
->x_ix86_tune_no_default
= opts
->x_ix86_tune_no_default
;
642 ptr
->x_ix86_veclibabi_type
= opts
->x_ix86_veclibabi_type
;
644 /* The fields are char but the variables are not; make sure the
645 values fit in the fields. */
646 gcc_assert (ptr
->arch
== ix86_arch
);
647 gcc_assert (ptr
->schedule
== ix86_schedule
);
648 gcc_assert (ptr
->tune
== ix86_tune
);
649 gcc_assert (ptr
->branch_cost
== ix86_branch_cost
);
652 /* Feature tests against the various architecture variations, used to create
653 ix86_arch_features based on the processor mask. */
654 static unsigned HOST_WIDE_INT initial_ix86_arch_features
[X86_ARCH_LAST
] = {
655 /* X86_ARCH_CMOV: Conditional move was added for pentiumpro. */
656 ~(m_386
| m_486
| m_PENT
| m_LAKEMONT
| m_K6
),
658 /* X86_ARCH_CMPXCHG: Compare and exchange was added for 80486. */
661 /* X86_ARCH_CMPXCHG8B: Compare and exchange 8 bytes was added for pentium. */
664 /* X86_ARCH_XADD: Exchange and add was added for 80486. */
667 /* X86_ARCH_BSWAP: Byteswap was added for 80486. */
671 /* This table must be in sync with enum processor_type in i386.h. */
672 static const struct processor_costs
*processor_cost_table
[] =
717 /* Guarantee that the array is aligned with enum processor_type. */
718 STATIC_ASSERT (ARRAY_SIZE (processor_cost_table
) == PROCESSOR_max
);
721 ix86_option_override_internal (bool main_args_p
,
722 struct gcc_options
*opts
,
723 struct gcc_options
*opts_set
);
725 set_ix86_tune_features (enum processor_type ix86_tune
, bool dump
);
727 /* Restore the current options */
730 ix86_function_specific_restore (struct gcc_options
*opts
,
731 struct cl_target_option
*ptr
)
733 enum processor_type old_tune
= ix86_tune
;
734 enum processor_type old_arch
= ix86_arch
;
735 unsigned HOST_WIDE_INT ix86_arch_mask
;
738 /* We don't change -fPIC. */
739 opts
->x_flag_pic
= flag_pic
;
741 ix86_arch
= (enum processor_type
) ptr
->arch
;
742 ix86_schedule
= (enum attr_cpu
) ptr
->schedule
;
743 ix86_tune
= (enum processor_type
) ptr
->tune
;
744 x86_prefetch_sse
= ptr
->prefetch_sse
;
745 opts
->x_ix86_branch_cost
= ptr
->branch_cost
;
746 ix86_tune_defaulted
= ptr
->tune_defaulted
;
747 ix86_arch_specified
= ptr
->arch_specified
;
748 opts
->x_ix86_isa_flags_explicit
= ptr
->x_ix86_isa_flags_explicit
;
749 opts
->x_ix86_isa_flags2_explicit
= ptr
->x_ix86_isa_flags2_explicit
;
750 opts
->x_recip_mask_explicit
= ptr
->x_recip_mask_explicit
;
751 opts
->x_ix86_arch_string
= ptr
->x_ix86_arch_string
;
752 opts
->x_ix86_tune_string
= ptr
->x_ix86_tune_string
;
753 opts
->x_ix86_cmodel
= ptr
->x_ix86_cmodel
;
754 opts
->x_ix86_abi
= ptr
->x_ix86_abi
;
755 opts
->x_ix86_asm_dialect
= ptr
->x_ix86_asm_dialect
;
756 opts
->x_ix86_branch_cost
= ptr
->x_ix86_branch_cost
;
757 opts
->x_ix86_dump_tunes
= ptr
->x_ix86_dump_tunes
;
758 opts
->x_ix86_force_align_arg_pointer
= ptr
->x_ix86_force_align_arg_pointer
;
759 opts
->x_ix86_force_drap
= ptr
->x_ix86_force_drap
;
760 opts
->x_ix86_incoming_stack_boundary_arg
= ptr
->x_ix86_incoming_stack_boundary_arg
;
761 opts
->x_ix86_pmode
= ptr
->x_ix86_pmode
;
762 opts
->x_ix86_preferred_stack_boundary_arg
= ptr
->x_ix86_preferred_stack_boundary_arg
;
763 opts
->x_ix86_recip_name
= ptr
->x_ix86_recip_name
;
764 opts
->x_ix86_regparm
= ptr
->x_ix86_regparm
;
765 opts
->x_ix86_section_threshold
= ptr
->x_ix86_section_threshold
;
766 opts
->x_ix86_sse2avx
= ptr
->x_ix86_sse2avx
;
767 opts
->x_ix86_stack_protector_guard
= ptr
->x_ix86_stack_protector_guard
;
768 opts
->x_ix86_stringop_alg
= ptr
->x_ix86_stringop_alg
;
769 opts
->x_ix86_tls_dialect
= ptr
->x_ix86_tls_dialect
;
770 opts
->x_ix86_tune_ctrl_string
= ptr
->x_ix86_tune_ctrl_string
;
771 opts
->x_ix86_tune_memcpy_strategy
= ptr
->x_ix86_tune_memcpy_strategy
;
772 opts
->x_ix86_tune_memset_strategy
= ptr
->x_ix86_tune_memset_strategy
;
773 opts
->x_ix86_tune_no_default
= ptr
->x_ix86_tune_no_default
;
774 opts
->x_ix86_veclibabi_type
= ptr
->x_ix86_veclibabi_type
;
775 ix86_tune_cost
= processor_cost_table
[ix86_tune
];
776 /* TODO: ix86_cost should be chosen at instruction or function granuality
777 so for cold code we use size_cost even in !optimize_size compilation. */
778 if (opts
->x_optimize_size
)
779 ix86_cost
= &ix86_size_cost
;
781 ix86_cost
= ix86_tune_cost
;
783 /* Recreate the arch feature tests if the arch changed */
784 if (old_arch
!= ix86_arch
)
786 ix86_arch_mask
= HOST_WIDE_INT_1U
<< ix86_arch
;
787 for (i
= 0; i
< X86_ARCH_LAST
; ++i
)
788 ix86_arch_features
[i
]
789 = !!(initial_ix86_arch_features
[i
] & ix86_arch_mask
);
792 /* Recreate the tune optimization tests */
793 if (old_tune
!= ix86_tune
)
794 set_ix86_tune_features (ix86_tune
, false);
797 /* Adjust target options after streaming them in. This is mainly about
798 reconciling them with global options. */
801 ix86_function_specific_post_stream_in (struct cl_target_option
*ptr
)
803 /* flag_pic is a global option, but ix86_cmodel is target saved option
804 partly computed from flag_pic. If flag_pic is on, adjust x_ix86_cmodel
805 for PIC, or error out. */
807 switch (ptr
->x_ix86_cmodel
)
810 ptr
->x_ix86_cmodel
= CM_SMALL_PIC
;
814 ptr
->x_ix86_cmodel
= CM_MEDIUM_PIC
;
818 ptr
->x_ix86_cmodel
= CM_LARGE_PIC
;
822 error ("code model %s does not support PIC mode", "kernel");
829 switch (ptr
->x_ix86_cmodel
)
832 ptr
->x_ix86_cmodel
= CM_SMALL
;
836 ptr
->x_ix86_cmodel
= CM_MEDIUM
;
840 ptr
->x_ix86_cmodel
= CM_LARGE
;
848 /* Print the current options */
851 ix86_function_specific_print (FILE *file
, int indent
,
852 struct cl_target_option
*ptr
)
855 = ix86_target_string (ptr
->x_ix86_isa_flags
, ptr
->x_ix86_isa_flags2
,
856 ptr
->x_target_flags
, ptr
->x_ix86_target_flags
,
857 NULL
, NULL
, ptr
->x_ix86_fpmath
, false, true);
859 gcc_assert (ptr
->arch
< PROCESSOR_max
);
860 fprintf (file
, "%*sarch = %d (%s)\n",
862 ptr
->arch
, processor_names
[ptr
->arch
]);
864 gcc_assert (ptr
->tune
< PROCESSOR_max
);
865 fprintf (file
, "%*stune = %d (%s)\n",
867 ptr
->tune
, processor_names
[ptr
->tune
]);
869 fprintf (file
, "%*sbranch_cost = %d\n", indent
, "", ptr
->branch_cost
);
873 fprintf (file
, "%*s%s\n", indent
, "", target_string
);
874 free (target_string
);
879 /* Inner function to process the attribute((target(...))), take an argument and
880 set the current options from the argument. If we have a list, recursively go
884 ix86_valid_target_attribute_inner_p (tree fndecl
, tree args
, char *p_strings
[],
885 struct gcc_options
*opts
,
886 struct gcc_options
*opts_set
,
887 struct gcc_options
*enum_opts_set
,
888 bool target_clone_attr
)
893 #define IX86_ATTR_ISA(S,O) { S, sizeof (S)-1, ix86_opt_isa, O, 0 }
894 #define IX86_ATTR_STR(S,O) { S, sizeof (S)-1, ix86_opt_str, O, 0 }
895 #define IX86_ATTR_ENUM(S,O) { S, sizeof (S)-1, ix86_opt_enum, O, 0 }
896 #define IX86_ATTR_YES(S,O,M) { S, sizeof (S)-1, ix86_opt_yes, O, M }
897 #define IX86_ATTR_NO(S,O,M) { S, sizeof (S)-1, ix86_opt_no, O, M }
913 enum ix86_opt_type type
;
918 IX86_ATTR_ISA ("pconfig", OPT_mpconfig
),
919 IX86_ATTR_ISA ("wbnoinvd", OPT_mwbnoinvd
),
920 IX86_ATTR_ISA ("sgx", OPT_msgx
),
921 IX86_ATTR_ISA ("avx5124fmaps", OPT_mavx5124fmaps
),
922 IX86_ATTR_ISA ("avx5124vnniw", OPT_mavx5124vnniw
),
923 IX86_ATTR_ISA ("avx512vpopcntdq", OPT_mavx512vpopcntdq
),
924 IX86_ATTR_ISA ("avx512vbmi2", OPT_mavx512vbmi2
),
925 IX86_ATTR_ISA ("avx512vnni", OPT_mavx512vnni
),
926 IX86_ATTR_ISA ("avx512bitalg", OPT_mavx512bitalg
),
927 IX86_ATTR_ISA ("avx512vp2intersect", OPT_mavx512vp2intersect
),
929 IX86_ATTR_ISA ("avx512vbmi", OPT_mavx512vbmi
),
930 IX86_ATTR_ISA ("avx512ifma", OPT_mavx512ifma
),
931 IX86_ATTR_ISA ("avx512vl", OPT_mavx512vl
),
932 IX86_ATTR_ISA ("avx512bw", OPT_mavx512bw
),
933 IX86_ATTR_ISA ("avx512dq", OPT_mavx512dq
),
934 IX86_ATTR_ISA ("avx512er", OPT_mavx512er
),
935 IX86_ATTR_ISA ("avx512pf", OPT_mavx512pf
),
936 IX86_ATTR_ISA ("avx512cd", OPT_mavx512cd
),
937 IX86_ATTR_ISA ("avx512f", OPT_mavx512f
),
938 IX86_ATTR_ISA ("avx2", OPT_mavx2
),
939 IX86_ATTR_ISA ("fma", OPT_mfma
),
940 IX86_ATTR_ISA ("xop", OPT_mxop
),
941 IX86_ATTR_ISA ("fma4", OPT_mfma4
),
942 IX86_ATTR_ISA ("f16c", OPT_mf16c
),
943 IX86_ATTR_ISA ("avx", OPT_mavx
),
944 IX86_ATTR_ISA ("sse4", OPT_msse4
),
945 IX86_ATTR_ISA ("sse4.2", OPT_msse4_2
),
946 IX86_ATTR_ISA ("sse4.1", OPT_msse4_1
),
947 IX86_ATTR_ISA ("sse4a", OPT_msse4a
),
948 IX86_ATTR_ISA ("ssse3", OPT_mssse3
),
949 IX86_ATTR_ISA ("sse3", OPT_msse3
),
950 IX86_ATTR_ISA ("aes", OPT_maes
),
951 IX86_ATTR_ISA ("sha", OPT_msha
),
952 IX86_ATTR_ISA ("pclmul", OPT_mpclmul
),
953 IX86_ATTR_ISA ("sse2", OPT_msse2
),
954 IX86_ATTR_ISA ("sse", OPT_msse
),
955 IX86_ATTR_ISA ("3dnowa", OPT_m3dnowa
),
956 IX86_ATTR_ISA ("3dnow", OPT_m3dnow
),
957 IX86_ATTR_ISA ("mmx", OPT_mmmx
),
958 IX86_ATTR_ISA ("rtm", OPT_mrtm
),
959 IX86_ATTR_ISA ("prfchw", OPT_mprfchw
),
960 IX86_ATTR_ISA ("rdseed", OPT_mrdseed
),
961 IX86_ATTR_ISA ("adx", OPT_madx
),
962 IX86_ATTR_ISA ("prefetchwt1", OPT_mprefetchwt1
),
963 IX86_ATTR_ISA ("clflushopt", OPT_mclflushopt
),
964 IX86_ATTR_ISA ("xsaves", OPT_mxsaves
),
965 IX86_ATTR_ISA ("xsavec", OPT_mxsavec
),
966 IX86_ATTR_ISA ("xsaveopt", OPT_mxsaveopt
),
967 IX86_ATTR_ISA ("xsave", OPT_mxsave
),
968 IX86_ATTR_ISA ("abm", OPT_mabm
),
969 IX86_ATTR_ISA ("bmi", OPT_mbmi
),
970 IX86_ATTR_ISA ("bmi2", OPT_mbmi2
),
971 IX86_ATTR_ISA ("lzcnt", OPT_mlzcnt
),
972 IX86_ATTR_ISA ("tbm", OPT_mtbm
),
973 IX86_ATTR_ISA ("popcnt", OPT_mpopcnt
),
974 IX86_ATTR_ISA ("cx16", OPT_mcx16
),
975 IX86_ATTR_ISA ("sahf", OPT_msahf
),
976 IX86_ATTR_ISA ("movbe", OPT_mmovbe
),
977 IX86_ATTR_ISA ("crc32", OPT_mcrc32
),
978 IX86_ATTR_ISA ("fsgsbase", OPT_mfsgsbase
),
979 IX86_ATTR_ISA ("rdrnd", OPT_mrdrnd
),
980 IX86_ATTR_ISA ("mwaitx", OPT_mmwaitx
),
981 IX86_ATTR_ISA ("clzero", OPT_mclzero
),
982 IX86_ATTR_ISA ("pku", OPT_mpku
),
983 IX86_ATTR_ISA ("lwp", OPT_mlwp
),
984 IX86_ATTR_ISA ("hle", OPT_mhle
),
985 IX86_ATTR_ISA ("fxsr", OPT_mfxsr
),
986 IX86_ATTR_ISA ("clwb", OPT_mclwb
),
987 IX86_ATTR_ISA ("rdpid", OPT_mrdpid
),
988 IX86_ATTR_ISA ("gfni", OPT_mgfni
),
989 IX86_ATTR_ISA ("shstk", OPT_mshstk
),
990 IX86_ATTR_ISA ("vaes", OPT_mvaes
),
991 IX86_ATTR_ISA ("vpclmulqdq", OPT_mvpclmulqdq
),
992 IX86_ATTR_ISA ("movdiri", OPT_mmovdiri
),
993 IX86_ATTR_ISA ("movdir64b", OPT_mmovdir64b
),
994 IX86_ATTR_ISA ("waitpkg", OPT_mwaitpkg
),
995 IX86_ATTR_ISA ("cldemote", OPT_mcldemote
),
996 IX86_ATTR_ISA ("ptwrite", OPT_mptwrite
),
997 IX86_ATTR_ISA ("avx512bf16", OPT_mavx512bf16
),
998 IX86_ATTR_ISA ("enqcmd", OPT_menqcmd
),
1001 IX86_ATTR_ENUM ("fpmath=", OPT_mfpmath_
),
1003 /* string options */
1004 IX86_ATTR_STR ("arch=", IX86_FUNCTION_SPECIFIC_ARCH
),
1005 IX86_ATTR_STR ("tune=", IX86_FUNCTION_SPECIFIC_TUNE
),
1008 IX86_ATTR_YES ("cld",
1012 IX86_ATTR_NO ("fancy-math-387",
1013 OPT_mfancy_math_387
,
1014 MASK_NO_FANCY_MATH_387
),
1016 IX86_ATTR_YES ("ieee-fp",
1020 IX86_ATTR_YES ("inline-all-stringops",
1021 OPT_minline_all_stringops
,
1022 MASK_INLINE_ALL_STRINGOPS
),
1024 IX86_ATTR_YES ("inline-stringops-dynamically",
1025 OPT_minline_stringops_dynamically
,
1026 MASK_INLINE_STRINGOPS_DYNAMICALLY
),
1028 IX86_ATTR_NO ("align-stringops",
1029 OPT_mno_align_stringops
,
1030 MASK_NO_ALIGN_STRINGOPS
),
1032 IX86_ATTR_YES ("recip",
1038 = fndecl
== NULL
? UNKNOWN_LOCATION
: DECL_SOURCE_LOCATION (fndecl
);
1039 const char *attr_name
= target_clone_attr
? "target_clone" : "target";
1041 /* If this is a list, recurse to get the options. */
1042 if (TREE_CODE (args
) == TREE_LIST
)
1046 for (; args
; args
= TREE_CHAIN (args
))
1047 if (TREE_VALUE (args
)
1048 && !ix86_valid_target_attribute_inner_p (fndecl
, TREE_VALUE (args
),
1049 p_strings
, opts
, opts_set
,
1057 else if (TREE_CODE (args
) != STRING_CST
)
1059 error_at (loc
, "attribute %qs argument is not a string", attr_name
);
1063 /* Handle multiple arguments separated by commas. */
1064 next_optstr
= ASTRDUP (TREE_STRING_POINTER (args
));
1066 while (next_optstr
&& *next_optstr
!= '\0')
1068 char *p
= next_optstr
;
1070 char *comma
= strchr (next_optstr
, ',');
1071 size_t len
, opt_len
;
1076 enum ix86_opt_type type
= ix86_opt_unknown
;
1082 len
= comma
- next_optstr
;
1083 next_optstr
= comma
+ 1;
1091 /* Recognize no-xxx. */
1092 if (len
> 3 && p
[0] == 'n' && p
[1] == 'o' && p
[2] == '-')
1101 /* Find the option. */
1104 for (i
= 0; i
< ARRAY_SIZE (attrs
); i
++)
1106 type
= attrs
[i
].type
;
1107 opt_len
= attrs
[i
].len
;
1108 if (ch
== attrs
[i
].string
[0]
1109 && ((type
!= ix86_opt_str
&& type
!= ix86_opt_enum
)
1112 && memcmp (p
, attrs
[i
].string
, opt_len
) == 0)
1115 mask
= attrs
[i
].mask
;
1120 /* Process the option. */
1123 error_at (loc
, "attribute %qs argument %qs is unknown",
1128 else if (type
== ix86_opt_isa
)
1130 struct cl_decoded_option decoded
;
1132 generate_option (opt
, NULL
, opt_set_p
, CL_TARGET
, &decoded
);
1133 ix86_handle_option (opts
, opts_set
,
1134 &decoded
, input_location
);
1137 else if (type
== ix86_opt_yes
|| type
== ix86_opt_no
)
1139 if (type
== ix86_opt_no
)
1140 opt_set_p
= !opt_set_p
;
1143 opts
->x_target_flags
|= mask
;
1145 opts
->x_target_flags
&= ~mask
;
1148 else if (type
== ix86_opt_str
)
1152 error_at (loc
, "attribute value %qs was already specified "
1153 "in %qs attribute", orig_p
, attr_name
);
1157 p_strings
[opt
] = xstrdup (p
+ opt_len
);
1160 else if (type
== ix86_opt_enum
)
1165 arg_ok
= opt_enum_arg_to_value (opt
, p
+ opt_len
, &value
, CL_TARGET
);
1167 set_option (opts
, enum_opts_set
, opt
, value
,
1168 p
+ opt_len
, DK_UNSPECIFIED
, input_location
,
1172 error_at (loc
, "attribute value %qs is unknown in %qs attribute",
1185 /* Release allocated strings. */
1187 release_options_strings (char **option_strings
)
1189 /* Free up memory allocated to hold the strings */
1190 for (unsigned i
= 0; i
< IX86_FUNCTION_SPECIFIC_MAX
; i
++)
1191 free (option_strings
[i
]);
1194 /* Return a TARGET_OPTION_NODE tree of the target options listed or NULL. */
1197 ix86_valid_target_attribute_tree (tree fndecl
, tree args
,
1198 struct gcc_options
*opts
,
1199 struct gcc_options
*opts_set
,
1200 bool target_clone_attr
)
1202 const char *orig_arch_string
= opts
->x_ix86_arch_string
;
1203 const char *orig_tune_string
= opts
->x_ix86_tune_string
;
1204 enum fpmath_unit orig_fpmath_set
= opts_set
->x_ix86_fpmath
;
1205 int orig_tune_defaulted
= ix86_tune_defaulted
;
1206 int orig_arch_specified
= ix86_arch_specified
;
1207 char *option_strings
[IX86_FUNCTION_SPECIFIC_MAX
] = { NULL
, NULL
};
1209 struct cl_target_option
*def
1210 = TREE_TARGET_OPTION (target_option_default_node
);
1211 struct gcc_options enum_opts_set
;
1213 memset (&enum_opts_set
, 0, sizeof (enum_opts_set
));
1215 /* Process each of the options on the chain. */
1216 if (!ix86_valid_target_attribute_inner_p (fndecl
, args
, option_strings
, opts
,
1217 opts_set
, &enum_opts_set
,
1219 return error_mark_node
;
1221 /* If the changed options are different from the default, rerun
1222 ix86_option_override_internal, and then save the options away.
1223 The string options are attribute options, and will be undone
1224 when we copy the save structure. */
1225 if (opts
->x_ix86_isa_flags
!= def
->x_ix86_isa_flags
1226 || opts
->x_ix86_isa_flags2
!= def
->x_ix86_isa_flags2
1227 || opts
->x_target_flags
!= def
->x_target_flags
1228 || option_strings
[IX86_FUNCTION_SPECIFIC_ARCH
]
1229 || option_strings
[IX86_FUNCTION_SPECIFIC_TUNE
]
1230 || enum_opts_set
.x_ix86_fpmath
)
1232 /* If we are using the default tune= or arch=, undo the string assigned,
1233 and use the default. */
1234 if (option_strings
[IX86_FUNCTION_SPECIFIC_ARCH
])
1236 opts
->x_ix86_arch_string
1237 = ggc_strdup (option_strings
[IX86_FUNCTION_SPECIFIC_ARCH
]);
1239 /* If arch= is set, clear all bits in x_ix86_isa_flags,
1240 except for ISA_64BIT, ABI_64, ABI_X32, and CODE16. */
1241 opts
->x_ix86_isa_flags
&= (OPTION_MASK_ISA_64BIT
1242 | OPTION_MASK_ABI_64
1243 | OPTION_MASK_ABI_X32
1244 | OPTION_MASK_CODE16
);
1245 opts
->x_ix86_isa_flags2
= 0;
1247 else if (!orig_arch_specified
)
1248 opts
->x_ix86_arch_string
= NULL
;
1250 if (option_strings
[IX86_FUNCTION_SPECIFIC_TUNE
])
1251 opts
->x_ix86_tune_string
1252 = ggc_strdup (option_strings
[IX86_FUNCTION_SPECIFIC_TUNE
]);
1253 else if (orig_tune_defaulted
)
1254 opts
->x_ix86_tune_string
= NULL
;
1256 /* If fpmath= is not set, and we now have sse2 on 32-bit, use it. */
1257 if (enum_opts_set
.x_ix86_fpmath
)
1258 opts_set
->x_ix86_fpmath
= (enum fpmath_unit
) 1;
1260 /* Do any overrides, such as arch=xxx, or tune=xxx support. */
1261 bool r
= ix86_option_override_internal (false, opts
, opts_set
);
1264 release_options_strings (option_strings
);
1265 return error_mark_node
;
1268 /* Add any builtin functions with the new isa if any. */
1269 ix86_add_new_builtins (opts
->x_ix86_isa_flags
, opts
->x_ix86_isa_flags2
);
1271 /* Save the current options unless we are validating options for
1273 t
= build_target_option_node (opts
);
1275 opts
->x_ix86_arch_string
= orig_arch_string
;
1276 opts
->x_ix86_tune_string
= orig_tune_string
;
1277 opts_set
->x_ix86_fpmath
= orig_fpmath_set
;
1279 release_options_strings (option_strings
);
1285 /* Hook to validate attribute((target("string"))). */
1288 ix86_valid_target_attribute_p (tree fndecl
,
1289 tree
ARG_UNUSED (name
),
1293 struct gcc_options func_options
;
1294 tree new_target
, new_optimize
;
1297 /* attribute((target("default"))) does nothing, beyond
1298 affecting multi-versioning. */
1299 if (TREE_VALUE (args
)
1300 && TREE_CODE (TREE_VALUE (args
)) == STRING_CST
1301 && TREE_CHAIN (args
) == NULL_TREE
1302 && strcmp (TREE_STRING_POINTER (TREE_VALUE (args
)), "default") == 0)
1305 tree old_optimize
= build_optimization_node (&global_options
);
1307 /* Get the optimization options of the current function. */
1308 tree func_optimize
= DECL_FUNCTION_SPECIFIC_OPTIMIZATION (fndecl
);
1311 func_optimize
= old_optimize
;
1313 /* Init func_options. */
1314 memset (&func_options
, 0, sizeof (func_options
));
1315 init_options_struct (&func_options
, NULL
);
1316 lang_hooks
.init_options_struct (&func_options
);
1318 cl_optimization_restore (&func_options
,
1319 TREE_OPTIMIZATION (func_optimize
));
1321 /* Initialize func_options to the default before its target options can
1323 cl_target_option_restore (&func_options
,
1324 TREE_TARGET_OPTION (target_option_default_node
));
1326 /* FLAGS == 1 is used for target_clones attribute. */
1328 = ix86_valid_target_attribute_tree (fndecl
, args
, &func_options
,
1329 &global_options_set
, flags
== 1);
1331 new_optimize
= build_optimization_node (&func_options
);
1333 if (new_target
== error_mark_node
)
1336 else if (fndecl
&& new_target
)
1338 DECL_FUNCTION_SPECIFIC_TARGET (fndecl
) = new_target
;
1340 if (old_optimize
!= new_optimize
)
1341 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (fndecl
) = new_optimize
;
1344 finalize_options_struct (&func_options
);
1349 const char *stringop_alg_names
[] = {
1351 #define DEF_ALG(alg, name) #name,
1352 #include "stringop.def"
1357 /* Parse parameter string passed to -mmemcpy-strategy= or -mmemset-strategy=.
1358 The string is of the following form (or comma separated list of it):
1360 strategy_alg:max_size:[align|noalign]
1362 where the full size range for the strategy is either [0, max_size] or
1363 [min_size, max_size], in which min_size is the max_size + 1 of the
1364 preceding range. The last size range must have max_size == -1.
1369 -mmemcpy-strategy=libcall:-1:noalign
1371 this is equivalent to (for known size memcpy) -mstringop-strategy=libcall
1375 -mmemset-strategy=rep_8byte:16:noalign,vector_loop:2048:align,libcall:-1:noalign
1377 This is to tell the compiler to use the following strategy for memset
1378 1) when the expected size is between [1, 16], use rep_8byte strategy;
1379 2) when the size is between [17, 2048], use vector_loop;
1380 3) when the size is > 2048, use libcall. */
1382 struct stringop_size_range
1390 ix86_parse_stringop_strategy_string (char *strategy_str
, bool is_memset
)
1392 const struct stringop_algs
*default_algs
;
1393 stringop_size_range input_ranges
[MAX_STRINGOP_ALGS
];
1394 char *curr_range_str
, *next_range_str
;
1395 const char *opt
= is_memset
? "-mmemset_strategy=" : "-mmemcpy_strategy=";
1399 default_algs
= &ix86_cost
->memset
[TARGET_64BIT
!= 0];
1401 default_algs
= &ix86_cost
->memcpy
[TARGET_64BIT
!= 0];
1403 curr_range_str
= strategy_str
;
1410 next_range_str
= strchr (curr_range_str
, ',');
1412 *next_range_str
++ = '\0';
1414 if (sscanf (curr_range_str
, "%20[^:]:%d:%10s", alg_name
, &maxs
,
1417 error ("wrong argument %qs to option %qs", curr_range_str
, opt
);
1421 if (n
> 0 && (maxs
< (input_ranges
[n
- 1].max
+ 1) && maxs
!= -1))
1423 error ("size ranges of option %qs should be increasing", opt
);
1427 for (i
= 0; i
< last_alg
; i
++)
1428 if (!strcmp (alg_name
, stringop_alg_names
[i
]))
1433 error ("wrong strategy name %qs specified for option %qs",
1436 auto_vec
<const char *> candidates
;
1437 for (i
= 0; i
< last_alg
; i
++)
1438 if ((stringop_alg
) i
!= rep_prefix_8_byte
|| TARGET_64BIT
)
1439 candidates
.safe_push (stringop_alg_names
[i
]);
1443 = candidates_list_and_hint (alg_name
, s
, candidates
);
1445 inform (input_location
,
1446 "valid arguments to %qs are: %s; did you mean %qs?",
1449 inform (input_location
, "valid arguments to %qs are: %s",
1455 if ((stringop_alg
) i
== rep_prefix_8_byte
1458 /* rep; movq isn't available in 32-bit code. */
1459 error ("strategy name %qs specified for option %qs "
1460 "not supported for 32-bit code", alg_name
, opt
);
1464 input_ranges
[n
].max
= maxs
;
1465 input_ranges
[n
].alg
= (stringop_alg
) i
;
1466 if (!strcmp (align
, "align"))
1467 input_ranges
[n
].noalign
= false;
1468 else if (!strcmp (align
, "noalign"))
1469 input_ranges
[n
].noalign
= true;
1472 error ("unknown alignment %qs specified for option %qs", align
, opt
);
1476 curr_range_str
= next_range_str
;
1478 while (curr_range_str
);
1480 if (input_ranges
[n
- 1].max
!= -1)
1482 error ("the max value for the last size range should be -1"
1483 " for option %qs", opt
);
1487 if (n
> MAX_STRINGOP_ALGS
)
1489 error ("too many size ranges specified in option %qs", opt
);
1493 /* Now override the default algs array. */
1494 for (i
= 0; i
< n
; i
++)
1496 *const_cast<int *>(&default_algs
->size
[i
].max
) = input_ranges
[i
].max
;
1497 *const_cast<stringop_alg
*>(&default_algs
->size
[i
].alg
)
1498 = input_ranges
[i
].alg
;
1499 *const_cast<int *>(&default_algs
->size
[i
].noalign
)
1500 = input_ranges
[i
].noalign
;
1505 /* parse -mtune-ctrl= option. When DUMP is true,
1506 print the features that are explicitly set. */
1509 parse_mtune_ctrl_str (bool dump
)
1511 if (!ix86_tune_ctrl_string
)
1514 char *next_feature_string
= NULL
;
1515 char *curr_feature_string
= xstrdup (ix86_tune_ctrl_string
);
1516 char *orig
= curr_feature_string
;
1522 next_feature_string
= strchr (curr_feature_string
, ',');
1523 if (next_feature_string
)
1524 *next_feature_string
++ = '\0';
1525 if (*curr_feature_string
== '^')
1527 curr_feature_string
++;
1530 for (i
= 0; i
< X86_TUNE_LAST
; i
++)
1532 if (!strcmp (curr_feature_string
, ix86_tune_feature_names
[i
]))
1534 ix86_tune_features
[i
] = !clear
;
1536 fprintf (stderr
, "Explicitly %s feature %s\n",
1537 clear
? "clear" : "set", ix86_tune_feature_names
[i
]);
1541 if (i
== X86_TUNE_LAST
)
1542 error ("unknown parameter to option %<-mtune-ctrl%>: %s",
1543 clear
? curr_feature_string
- 1 : curr_feature_string
);
1544 curr_feature_string
= next_feature_string
;
1546 while (curr_feature_string
);
1550 /* Helper function to set ix86_tune_features. IX86_TUNE is the
1554 set_ix86_tune_features (enum processor_type ix86_tune
, bool dump
)
1556 unsigned HOST_WIDE_INT ix86_tune_mask
= HOST_WIDE_INT_1U
<< ix86_tune
;
1559 for (i
= 0; i
< X86_TUNE_LAST
; ++i
)
1561 if (ix86_tune_no_default
)
1562 ix86_tune_features
[i
] = 0;
1564 ix86_tune_features
[i
]
1565 = !!(initial_ix86_tune_features
[i
] & ix86_tune_mask
);
1570 fprintf (stderr
, "List of x86 specific tuning parameter names:\n");
1571 for (i
= 0; i
< X86_TUNE_LAST
; i
++)
1572 fprintf (stderr
, "%s : %s\n", ix86_tune_feature_names
[i
],
1573 ix86_tune_features
[i
] ? "on" : "off");
1576 parse_mtune_ctrl_str (dump
);
1580 /* Default align_* from the processor table. */
1583 ix86_default_align (struct gcc_options
*opts
)
1585 /* -falign-foo without argument: supply one. */
1586 if (opts
->x_flag_align_loops
&& !opts
->x_str_align_loops
)
1587 opts
->x_str_align_loops
= processor_cost_table
[ix86_tune
]->align_loop
;
1588 if (opts
->x_flag_align_jumps
&& !opts
->x_str_align_jumps
)
1589 opts
->x_str_align_jumps
= processor_cost_table
[ix86_tune
]->align_jump
;
1590 if (opts
->x_flag_align_labels
&& !opts
->x_str_align_labels
)
1591 opts
->x_str_align_labels
= processor_cost_table
[ix86_tune
]->align_label
;
1592 if (opts
->x_flag_align_functions
&& !opts
->x_str_align_functions
)
1593 opts
->x_str_align_functions
= processor_cost_table
[ix86_tune
]->align_func
;
1596 #ifndef USE_IX86_FRAME_POINTER
1597 #define USE_IX86_FRAME_POINTER 0
1600 /* (Re)compute option overrides affected by optimization levels in
1601 target-specific ways. */
1604 ix86_recompute_optlev_based_flags (struct gcc_options
*opts
,
1605 struct gcc_options
*opts_set
)
1607 /* Set the default values for switches whose default depends on TARGET_64BIT
1608 in case they weren't overwritten by command line options. */
1609 if (TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
1611 if (opts
->x_optimize
>= 1 && !opts_set
->x_flag_omit_frame_pointer
)
1612 opts
->x_flag_omit_frame_pointer
= !USE_IX86_FRAME_POINTER
;
1613 if (opts
->x_flag_asynchronous_unwind_tables
1614 && !opts_set
->x_flag_unwind_tables
1615 && TARGET_64BIT_MS_ABI
)
1616 opts
->x_flag_unwind_tables
= 1;
1617 if (opts
->x_flag_asynchronous_unwind_tables
== 2)
1618 opts
->x_flag_unwind_tables
1619 = opts
->x_flag_asynchronous_unwind_tables
= 1;
1620 if (opts
->x_flag_pcc_struct_return
== 2)
1621 opts
->x_flag_pcc_struct_return
= 0;
1625 if (opts
->x_optimize
>= 1 && !opts_set
->x_flag_omit_frame_pointer
)
1626 opts
->x_flag_omit_frame_pointer
1627 = !(USE_IX86_FRAME_POINTER
|| opts
->x_optimize_size
);
1628 if (opts
->x_flag_asynchronous_unwind_tables
== 2)
1629 opts
->x_flag_asynchronous_unwind_tables
= !USE_IX86_FRAME_POINTER
;
1630 if (opts
->x_flag_pcc_struct_return
== 2)
1632 /* Intel MCU psABI specifies that -freg-struct-return should
1633 be on. Instead of setting DEFAULT_PCC_STRUCT_RETURN to 1,
1634 we check -miamcu so that -freg-struct-return is always
1635 turned on if -miamcu is used. */
1636 if (TARGET_IAMCU_P (opts
->x_target_flags
))
1637 opts
->x_flag_pcc_struct_return
= 0;
1639 opts
->x_flag_pcc_struct_return
= DEFAULT_PCC_STRUCT_RETURN
;
1644 /* Implement TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE hook. */
1647 ix86_override_options_after_change (void)
1649 ix86_default_align (&global_options
);
1650 ix86_recompute_optlev_based_flags (&global_options
, &global_options_set
);
1653 /* Clear stack slot assignments remembered from previous functions.
1654 This is called from INIT_EXPANDERS once before RTL is emitted for each
1657 static struct machine_function
*
1658 ix86_init_machine_status (void)
1660 struct machine_function
*f
;
1662 f
= ggc_cleared_alloc
<machine_function
> ();
1663 f
->call_abi
= ix86_abi
;
1664 f
->stack_frame_required
= true;
1669 /* Override various settings based on options. If MAIN_ARGS_P, the
1670 options are from the command line, otherwise they are from
1671 attributes. Return true if there's an error related to march
1675 ix86_option_override_internal (bool main_args_p
,
1676 struct gcc_options
*opts
,
1677 struct gcc_options
*opts_set
)
1680 unsigned HOST_WIDE_INT ix86_arch_mask
;
1681 const bool ix86_tune_specified
= (opts
->x_ix86_tune_string
!= NULL
);
1683 /* -mrecip options. */
1686 const char *string
; /* option name */
1687 unsigned int mask
; /* mask bits to set */
1689 const recip_options
[] =
1691 { "all", RECIP_MASK_ALL
},
1692 { "none", RECIP_MASK_NONE
},
1693 { "div", RECIP_MASK_DIV
},
1694 { "sqrt", RECIP_MASK_SQRT
},
1695 { "vec-div", RECIP_MASK_VEC_DIV
},
1696 { "vec-sqrt", RECIP_MASK_VEC_SQRT
},
1700 /* Turn off both OPTION_MASK_ABI_64 and OPTION_MASK_ABI_X32 if
1701 TARGET_64BIT_DEFAULT is true and TARGET_64BIT is false. */
1702 if (TARGET_64BIT_DEFAULT
&& !TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
1703 opts
->x_ix86_isa_flags
&= ~(OPTION_MASK_ABI_64
| OPTION_MASK_ABI_X32
);
1704 #ifdef TARGET_BI_ARCH
1707 #if TARGET_BI_ARCH == 1
1708 /* When TARGET_BI_ARCH == 1, by default, OPTION_MASK_ABI_64
1709 is on and OPTION_MASK_ABI_X32 is off. We turn off
1710 OPTION_MASK_ABI_64 if OPTION_MASK_ABI_X32 is turned on by
1712 if (TARGET_X32_P (opts
->x_ix86_isa_flags
))
1713 opts
->x_ix86_isa_flags
&= ~OPTION_MASK_ABI_64
;
1715 /* When TARGET_BI_ARCH == 2, by default, OPTION_MASK_ABI_X32 is
1716 on and OPTION_MASK_ABI_64 is off. We turn off
1717 OPTION_MASK_ABI_X32 if OPTION_MASK_ABI_64 is turned on by
1718 -m64 or OPTION_MASK_CODE16 is turned on by -m16. */
1719 if (TARGET_LP64_P (opts
->x_ix86_isa_flags
)
1720 || TARGET_16BIT_P (opts
->x_ix86_isa_flags
))
1721 opts
->x_ix86_isa_flags
&= ~OPTION_MASK_ABI_X32
;
1723 if (TARGET_64BIT_P (opts
->x_ix86_isa_flags
)
1724 && TARGET_IAMCU_P (opts
->x_target_flags
))
1725 sorry ("Intel MCU psABI isn%'t supported in %s mode",
1726 TARGET_X32_P (opts
->x_ix86_isa_flags
) ? "x32" : "64-bit");
1730 if (TARGET_X32_P (opts
->x_ix86_isa_flags
))
1732 /* Always turn on OPTION_MASK_ISA_64BIT and turn off
1733 OPTION_MASK_ABI_64 for TARGET_X32. */
1734 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_64BIT
;
1735 opts
->x_ix86_isa_flags
&= ~OPTION_MASK_ABI_64
;
1737 else if (TARGET_16BIT_P (opts
->x_ix86_isa_flags
))
1738 opts
->x_ix86_isa_flags
&= ~(OPTION_MASK_ISA_64BIT
1739 | OPTION_MASK_ABI_X32
1740 | OPTION_MASK_ABI_64
);
1741 else if (TARGET_LP64_P (opts
->x_ix86_isa_flags
))
1743 /* Always turn on OPTION_MASK_ISA_64BIT and turn off
1744 OPTION_MASK_ABI_X32 for TARGET_LP64. */
1745 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_64BIT
;
1746 opts
->x_ix86_isa_flags
&= ~OPTION_MASK_ABI_X32
;
1749 #ifdef SUBTARGET_OVERRIDE_OPTIONS
1750 SUBTARGET_OVERRIDE_OPTIONS
;
1753 #ifdef SUBSUBTARGET_OVERRIDE_OPTIONS
1754 SUBSUBTARGET_OVERRIDE_OPTIONS
;
1757 /* -fPIC is the default for x86_64. */
1758 if (TARGET_MACHO
&& TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
1759 opts
->x_flag_pic
= 2;
1761 /* Need to check -mtune=generic first. */
1762 if (opts
->x_ix86_tune_string
)
1764 /* As special support for cross compilers we read -mtune=native
1765 as -mtune=generic. With native compilers we won't see the
1766 -mtune=native, as it was changed by the driver. */
1767 if (!strcmp (opts
->x_ix86_tune_string
, "native"))
1769 opts
->x_ix86_tune_string
= "generic";
1771 else if (!strcmp (opts
->x_ix86_tune_string
, "x86-64"))
1772 warning (OPT_Wdeprecated
,
1774 ? G_("%<-mtune=x86-64%> is deprecated; use %<-mtune=k8%> "
1775 "or %<-mtune=generic%> instead as appropriate")
1776 : G_("%<target(\"tune=x86-64\")%> is deprecated; use "
1777 "%<target(\"tune=k8\")%> or %<target(\"tune=generic\")%>"
1778 " instead as appropriate"));
1782 if (opts
->x_ix86_arch_string
)
1783 opts
->x_ix86_tune_string
= opts
->x_ix86_arch_string
;
1784 if (!opts
->x_ix86_tune_string
)
1786 opts
->x_ix86_tune_string
= processor_names
[TARGET_CPU_DEFAULT
];
1787 ix86_tune_defaulted
= 1;
1790 /* opts->x_ix86_tune_string is set to opts->x_ix86_arch_string
1791 or defaulted. We need to use a sensible tune option. */
1792 if (!strcmp (opts
->x_ix86_tune_string
, "x86-64"))
1794 opts
->x_ix86_tune_string
= "generic";
1798 if (opts
->x_ix86_stringop_alg
== rep_prefix_8_byte
1799 && !TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
1801 /* rep; movq isn't available in 32-bit code. */
1802 error ("%<-mstringop-strategy=rep_8byte%> not supported for 32-bit code");
1803 opts
->x_ix86_stringop_alg
= no_stringop
;
1806 if (!opts
->x_ix86_arch_string
)
1807 opts
->x_ix86_arch_string
1808 = TARGET_64BIT_P (opts
->x_ix86_isa_flags
)
1809 ? "x86-64" : SUBTARGET32_DEFAULT_CPU
;
1811 ix86_arch_specified
= 1;
1813 if (opts_set
->x_ix86_pmode
)
1815 if ((TARGET_LP64_P (opts
->x_ix86_isa_flags
)
1816 && opts
->x_ix86_pmode
== PMODE_SI
)
1817 || (!TARGET_64BIT_P (opts
->x_ix86_isa_flags
)
1818 && opts
->x_ix86_pmode
== PMODE_DI
))
1819 error ("address mode %qs not supported in the %s bit mode",
1820 TARGET_64BIT_P (opts
->x_ix86_isa_flags
) ? "short" : "long",
1821 TARGET_64BIT_P (opts
->x_ix86_isa_flags
) ? "64" : "32");
1824 opts
->x_ix86_pmode
= TARGET_LP64_P (opts
->x_ix86_isa_flags
)
1825 ? PMODE_DI
: PMODE_SI
;
1827 if (!opts_set
->x_ix86_abi
)
1828 opts
->x_ix86_abi
= DEFAULT_ABI
;
1830 if (opts
->x_ix86_abi
== MS_ABI
&& TARGET_X32_P (opts
->x_ix86_isa_flags
))
1831 error ("%<-mabi=ms%> not supported with X32 ABI");
1832 gcc_assert (opts
->x_ix86_abi
== SYSV_ABI
|| opts
->x_ix86_abi
== MS_ABI
);
1834 const char *abi_name
= opts
->x_ix86_abi
== MS_ABI
? "ms" : "sysv";
1835 if ((opts
->x_flag_sanitize
& SANITIZE_USER_ADDRESS
)
1836 && opts
->x_ix86_abi
!= DEFAULT_ABI
)
1837 error ("%<-mabi=%s%> not supported with %<-fsanitize=address%>", abi_name
);
1838 if ((opts
->x_flag_sanitize
& SANITIZE_KERNEL_ADDRESS
)
1839 && opts
->x_ix86_abi
!= DEFAULT_ABI
)
1840 error ("%<-mabi=%s%> not supported with %<-fsanitize=kernel-address%>",
1842 if ((opts
->x_flag_sanitize
& SANITIZE_THREAD
)
1843 && opts
->x_ix86_abi
!= DEFAULT_ABI
)
1844 error ("%<-mabi=%s%> not supported with %<-fsanitize=thread%>", abi_name
);
1846 /* For targets using ms ABI enable ms-extensions, if not
1847 explicit turned off. For non-ms ABI we turn off this
1849 if (!opts_set
->x_flag_ms_extensions
)
1850 opts
->x_flag_ms_extensions
= (MS_ABI
== DEFAULT_ABI
);
1852 if (opts_set
->x_ix86_cmodel
)
1854 switch (opts
->x_ix86_cmodel
)
1858 if (opts
->x_flag_pic
)
1859 opts
->x_ix86_cmodel
= CM_SMALL_PIC
;
1860 if (!TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
1861 error ("code model %qs not supported in the %s bit mode",
1867 if (opts
->x_flag_pic
)
1868 opts
->x_ix86_cmodel
= CM_MEDIUM_PIC
;
1869 if (!TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
1870 error ("code model %qs not supported in the %s bit mode",
1872 else if (TARGET_X32_P (opts
->x_ix86_isa_flags
))
1873 error ("code model %qs not supported in x32 mode",
1879 if (opts
->x_flag_pic
)
1880 opts
->x_ix86_cmodel
= CM_LARGE_PIC
;
1881 if (!TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
1882 error ("code model %qs not supported in the %s bit mode",
1884 else if (TARGET_X32_P (opts
->x_ix86_isa_flags
))
1885 error ("code model %qs not supported in x32 mode",
1890 if (opts
->x_flag_pic
)
1891 error ("code model %s does not support PIC mode", "32");
1892 if (TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
1893 error ("code model %qs not supported in the %s bit mode",
1898 if (opts
->x_flag_pic
)
1900 error ("code model %s does not support PIC mode", "kernel");
1901 opts
->x_ix86_cmodel
= CM_32
;
1903 if (!TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
1904 error ("code model %qs not supported in the %s bit mode",
1914 /* For TARGET_64BIT and MS_ABI, force pic on, in order to enable the
1915 use of rip-relative addressing. This eliminates fixups that
1916 would otherwise be needed if this object is to be placed in a
1917 DLL, and is essentially just as efficient as direct addressing. */
1918 if (TARGET_64BIT_P (opts
->x_ix86_isa_flags
)
1919 && (TARGET_RDOS
|| TARGET_PECOFF
))
1920 opts
->x_ix86_cmodel
= CM_MEDIUM_PIC
, opts
->x_flag_pic
= 1;
1921 else if (TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
1922 opts
->x_ix86_cmodel
= opts
->x_flag_pic
? CM_SMALL_PIC
: CM_SMALL
;
1924 opts
->x_ix86_cmodel
= CM_32
;
1926 if (TARGET_MACHO
&& opts
->x_ix86_asm_dialect
== ASM_INTEL
)
1928 error ("%<-masm=intel%> not supported in this configuration");
1929 opts
->x_ix86_asm_dialect
= ASM_ATT
;
1931 if ((TARGET_64BIT_P (opts
->x_ix86_isa_flags
) != 0)
1932 != ((opts
->x_ix86_isa_flags
& OPTION_MASK_ISA_64BIT
) != 0))
1933 sorry ("%i-bit mode not compiled in",
1934 (opts
->x_ix86_isa_flags
& OPTION_MASK_ISA_64BIT
) ? 64 : 32);
1936 for (i
= 0; i
< pta_size
; i
++)
1937 if (! strcmp (opts
->x_ix86_arch_string
, processor_alias_table
[i
].name
))
1939 if (!strcmp (opts
->x_ix86_arch_string
, "generic"))
1942 ? G_("%<generic%> CPU can be used only for %<-mtune=%> "
1944 : G_("%<generic%> CPU can be used only for "
1945 "%<target(\"tune=\")%> attribute"));
1948 else if (!strcmp (opts
->x_ix86_arch_string
, "intel"))
1951 ? G_("%<intel%> CPU can be used only for %<-mtune=%> "
1953 : G_("%<intel%> CPU can be used only for "
1954 "%<target(\"tune=\")%> attribute"));
1958 if (TARGET_64BIT_P (opts
->x_ix86_isa_flags
)
1959 && !((processor_alias_table
[i
].flags
& PTA_64BIT
) != 0))
1961 error ("CPU you selected does not support x86-64 "
1966 ix86_schedule
= processor_alias_table
[i
].schedule
;
1967 ix86_arch
= processor_alias_table
[i
].processor
;
1968 /* Default cpu tuning to the architecture. */
1969 ix86_tune
= ix86_arch
;
1971 if (((processor_alias_table
[i
].flags
& PTA_MMX
) != 0)
1972 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_MMX
))
1973 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_MMX
;
1974 if (((processor_alias_table
[i
].flags
& PTA_3DNOW
) != 0)
1975 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_3DNOW
))
1976 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_3DNOW
;
1977 if (((processor_alias_table
[i
].flags
& PTA_3DNOW_A
) != 0)
1978 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_3DNOW_A
))
1979 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_3DNOW_A
;
1980 if (((processor_alias_table
[i
].flags
& PTA_SSE
) != 0)
1981 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_SSE
))
1982 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_SSE
;
1983 if (((processor_alias_table
[i
].flags
& PTA_SSE2
) != 0)
1984 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_SSE2
))
1985 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_SSE2
;
1986 if (((processor_alias_table
[i
].flags
& PTA_SSE3
) != 0)
1987 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_SSE3
))
1988 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_SSE3
;
1989 if (((processor_alias_table
[i
].flags
& PTA_SSSE3
) != 0)
1990 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_SSSE3
))
1991 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_SSSE3
;
1992 if (((processor_alias_table
[i
].flags
& PTA_SSE4_1
) != 0)
1993 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_SSE4_1
))
1994 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_SSE4_1
;
1995 if (((processor_alias_table
[i
].flags
& PTA_SSE4_2
) != 0)
1996 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_SSE4_2
))
1997 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_SSE4_2
;
1998 if (((processor_alias_table
[i
].flags
& PTA_AVX
) != 0)
1999 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_AVX
))
2000 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX
;
2001 if (((processor_alias_table
[i
].flags
& PTA_AVX2
) != 0)
2002 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_AVX2
))
2003 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX2
;
2004 if (((processor_alias_table
[i
].flags
& PTA_FMA
) != 0)
2005 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_FMA
))
2006 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_FMA
;
2007 if (((processor_alias_table
[i
].flags
& PTA_SSE4A
) != 0)
2008 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_SSE4A
))
2009 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_SSE4A
;
2010 if (((processor_alias_table
[i
].flags
& PTA_FMA4
) != 0)
2011 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_FMA4
))
2012 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_FMA4
;
2013 if (((processor_alias_table
[i
].flags
& PTA_XOP
) != 0)
2014 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_XOP
))
2015 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_XOP
;
2016 if (((processor_alias_table
[i
].flags
& PTA_LWP
) != 0)
2017 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_LWP
))
2018 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_LWP
;
2019 if (((processor_alias_table
[i
].flags
& PTA_ABM
) != 0)
2020 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_ABM
))
2021 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_ABM
;
2022 if (((processor_alias_table
[i
].flags
& PTA_BMI
) != 0)
2023 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_BMI
))
2024 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_BMI
;
2025 if (((processor_alias_table
[i
].flags
& (PTA_LZCNT
| PTA_ABM
)) != 0)
2026 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_LZCNT
))
2027 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_LZCNT
;
2028 if (((processor_alias_table
[i
].flags
& PTA_TBM
) != 0)
2029 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_TBM
))
2030 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_TBM
;
2031 if (((processor_alias_table
[i
].flags
& PTA_BMI2
) != 0)
2032 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_BMI2
))
2033 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_BMI2
;
2034 if (((processor_alias_table
[i
].flags
& PTA_CX16
) != 0)
2035 && !(opts
->x_ix86_isa_flags2_explicit
& OPTION_MASK_ISA_CX16
))
2036 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_CX16
;
2037 if (((processor_alias_table
[i
].flags
& (PTA_POPCNT
| PTA_ABM
)) != 0)
2038 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_POPCNT
))
2039 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_POPCNT
;
2040 if (!(TARGET_64BIT_P (opts
->x_ix86_isa_flags
)
2041 && ((processor_alias_table
[i
].flags
& PTA_NO_SAHF
) != 0))
2042 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_SAHF
))
2043 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_SAHF
;
2044 if (((processor_alias_table
[i
].flags
& PTA_MOVBE
) != 0)
2045 && !(opts
->x_ix86_isa_flags2_explicit
& OPTION_MASK_ISA_MOVBE
))
2046 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_MOVBE
;
2047 if (((processor_alias_table
[i
].flags
& PTA_AES
) != 0)
2048 && !(ix86_isa_flags_explicit
& OPTION_MASK_ISA_AES
))
2049 ix86_isa_flags
|= OPTION_MASK_ISA_AES
;
2050 if (((processor_alias_table
[i
].flags
& PTA_SHA
) != 0)
2051 && !(ix86_isa_flags_explicit
& OPTION_MASK_ISA_SHA
))
2052 ix86_isa_flags
|= OPTION_MASK_ISA_SHA
;
2053 if (((processor_alias_table
[i
].flags
& PTA_PCLMUL
) != 0)
2054 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_PCLMUL
))
2055 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_PCLMUL
;
2056 if (((processor_alias_table
[i
].flags
& PTA_FSGSBASE
) != 0)
2057 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_FSGSBASE
))
2058 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_FSGSBASE
;
2059 if (((processor_alias_table
[i
].flags
& PTA_RDRND
) != 0)
2060 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_RDRND
))
2061 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_RDRND
;
2062 if (((processor_alias_table
[i
].flags
& PTA_F16C
) != 0)
2063 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_F16C
))
2064 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_F16C
;
2065 if (((processor_alias_table
[i
].flags
& PTA_RTM
) != 0)
2066 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_RTM
))
2067 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_RTM
;
2068 if (((processor_alias_table
[i
].flags
& PTA_HLE
) != 0)
2069 && !(opts
->x_ix86_isa_flags2_explicit
& OPTION_MASK_ISA_HLE
))
2070 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_HLE
;
2071 if (((processor_alias_table
[i
].flags
& PTA_PRFCHW
) != 0)
2072 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_PRFCHW
))
2073 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_PRFCHW
;
2074 if (((processor_alias_table
[i
].flags
& PTA_RDSEED
) != 0)
2075 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_RDSEED
))
2076 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_RDSEED
;
2077 if (((processor_alias_table
[i
].flags
& PTA_ADX
) != 0)
2078 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_ADX
))
2079 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_ADX
;
2080 if (((processor_alias_table
[i
].flags
& PTA_FXSR
) != 0)
2081 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_FXSR
))
2082 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_FXSR
;
2083 if (((processor_alias_table
[i
].flags
& PTA_XSAVE
) != 0)
2084 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_XSAVE
))
2085 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_XSAVE
;
2086 if (((processor_alias_table
[i
].flags
& PTA_XSAVEOPT
) != 0)
2087 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_XSAVEOPT
))
2088 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_XSAVEOPT
;
2089 if (((processor_alias_table
[i
].flags
& PTA_AVX512F
) != 0)
2090 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_AVX512F
))
2091 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512F
;
2092 if (((processor_alias_table
[i
].flags
& PTA_AVX512ER
) != 0)
2093 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_AVX512ER
))
2094 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512ER
;
2095 if (((processor_alias_table
[i
].flags
& PTA_AVX512PF
) != 0)
2096 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_AVX512PF
))
2097 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512PF
;
2098 if (((processor_alias_table
[i
].flags
& PTA_AVX512CD
) != 0)
2099 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_AVX512CD
))
2100 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512CD
;
2101 if (((processor_alias_table
[i
].flags
& PTA_PREFETCHWT1
) != 0)
2102 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_PREFETCHWT1
))
2103 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_PREFETCHWT1
;
2104 if (((processor_alias_table
[i
].flags
& PTA_CLWB
) != 0)
2105 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_CLWB
))
2106 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_CLWB
;
2107 if (((processor_alias_table
[i
].flags
& PTA_CLFLUSHOPT
) != 0)
2108 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_CLFLUSHOPT
))
2109 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_CLFLUSHOPT
;
2110 if (((processor_alias_table
[i
].flags
& PTA_CLZERO
) != 0)
2111 && !(opts
->x_ix86_isa_flags2_explicit
& OPTION_MASK_ISA_CLZERO
))
2112 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_CLZERO
;
2113 if (((processor_alias_table
[i
].flags
& PTA_XSAVEC
) != 0)
2114 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_XSAVEC
))
2115 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_XSAVEC
;
2116 if (((processor_alias_table
[i
].flags
& PTA_XSAVES
) != 0)
2117 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_XSAVES
))
2118 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_XSAVES
;
2119 if (((processor_alias_table
[i
].flags
& PTA_AVX512DQ
) != 0)
2120 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_AVX512DQ
))
2121 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512DQ
;
2122 if (((processor_alias_table
[i
].flags
& PTA_AVX512BW
) != 0)
2123 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_AVX512BW
))
2124 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512BW
;
2125 if (((processor_alias_table
[i
].flags
& PTA_AVX512VL
) != 0)
2126 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_AVX512VL
))
2127 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512VL
;
2128 if (((processor_alias_table
[i
].flags
& PTA_AVX512VBMI
) != 0)
2129 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_AVX512VBMI
))
2130 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512VBMI
;
2131 if (((processor_alias_table
[i
].flags
& PTA_AVX512IFMA
) != 0)
2132 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_AVX512IFMA
))
2133 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512IFMA
;
2134 if (((processor_alias_table
[i
].flags
& PTA_AVX512VNNI
) != 0)
2135 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_AVX512VNNI
))
2136 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512VNNI
;
2137 if (((processor_alias_table
[i
].flags
& PTA_GFNI
) != 0)
2138 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_GFNI
))
2139 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_GFNI
;
2140 if (((processor_alias_table
[i
].flags
& PTA_AVX512VBMI2
) != 0)
2141 && !(opts
->x_ix86_isa_flags_explicit
2142 & OPTION_MASK_ISA_AVX512VBMI2
))
2143 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512VBMI2
;
2144 if (((processor_alias_table
[i
].flags
& PTA_VPCLMULQDQ
) != 0)
2145 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_VPCLMULQDQ
))
2146 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_VPCLMULQDQ
;
2147 if (((processor_alias_table
[i
].flags
& PTA_AVX512BITALG
) != 0)
2148 && !(opts
->x_ix86_isa_flags_explicit
2149 & OPTION_MASK_ISA_AVX512BITALG
))
2150 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512BITALG
;
2152 if (((processor_alias_table
[i
].flags
& PTA_AVX512VP2INTERSECT
) != 0)
2153 && !(opts
->x_ix86_isa_flags2_explicit
2154 & OPTION_MASK_ISA_AVX512VP2INTERSECT
))
2155 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_AVX512VP2INTERSECT
;
2156 if (((processor_alias_table
[i
].flags
& PTA_AVX5124VNNIW
) != 0)
2157 && !(opts
->x_ix86_isa_flags2_explicit
2158 & OPTION_MASK_ISA_AVX5124VNNIW
))
2159 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_AVX5124VNNIW
;
2160 if (((processor_alias_table
[i
].flags
& PTA_AVX5124FMAPS
) != 0)
2161 && !(opts
->x_ix86_isa_flags2_explicit
2162 & OPTION_MASK_ISA_AVX5124FMAPS
))
2163 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_AVX5124FMAPS
;
2164 if (((processor_alias_table
[i
].flags
& PTA_AVX512VPOPCNTDQ
) != 0)
2165 && !(opts
->x_ix86_isa_flags_explicit
2166 & OPTION_MASK_ISA_AVX512VPOPCNTDQ
))
2167 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_AVX512VPOPCNTDQ
;
2168 if (((processor_alias_table
[i
].flags
& PTA_AVX512BF16
) != 0)
2169 && !(opts
->x_ix86_isa_flags2_explicit
2170 & OPTION_MASK_ISA_AVX512BF16
))
2171 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_AVX512BF16
;
2172 if (((processor_alias_table
[i
].flags
& PTA_MOVDIRI
) != 0)
2173 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_MOVDIRI
))
2174 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_MOVDIRI
;
2175 if (((processor_alias_table
[i
].flags
& PTA_MOVDIR64B
) != 0)
2176 && !(opts
->x_ix86_isa_flags2_explicit
& OPTION_MASK_ISA_MOVDIR64B
))
2177 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_MOVDIR64B
;
2178 if (((processor_alias_table
[i
].flags
& PTA_SGX
) != 0)
2179 && !(opts
->x_ix86_isa_flags2_explicit
& OPTION_MASK_ISA_SGX
))
2180 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_SGX
;
2181 if (((processor_alias_table
[i
].flags
& PTA_VAES
) != 0)
2182 && !(opts
->x_ix86_isa_flags2_explicit
& OPTION_MASK_ISA_VAES
))
2183 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_VAES
;
2184 if (((processor_alias_table
[i
].flags
& PTA_RDPID
) != 0)
2185 && !(opts
->x_ix86_isa_flags2_explicit
& OPTION_MASK_ISA_RDPID
))
2186 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_RDPID
;
2187 if (((processor_alias_table
[i
].flags
& PTA_PCONFIG
) != 0)
2188 && !(opts
->x_ix86_isa_flags2_explicit
& OPTION_MASK_ISA_PCONFIG
))
2189 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_PCONFIG
;
2190 if (((processor_alias_table
[i
].flags
& PTA_WBNOINVD
) != 0)
2191 && !(opts
->x_ix86_isa_flags2_explicit
& OPTION_MASK_ISA_WBNOINVD
))
2192 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_WBNOINVD
;
2193 if (((processor_alias_table
[i
].flags
& PTA_PTWRITE
) != 0)
2194 && !(opts
->x_ix86_isa_flags2_explicit
& OPTION_MASK_ISA_PTWRITE
))
2195 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_PTWRITE
;
2197 if ((processor_alias_table
[i
].flags
2198 & (PTA_PREFETCH_SSE
| PTA_SSE
)) != 0)
2199 x86_prefetch_sse
= true;
2200 if (((processor_alias_table
[i
].flags
& PTA_MWAITX
) != 0)
2201 && !(opts
->x_ix86_isa_flags2_explicit
& OPTION_MASK_ISA_MWAITX
))
2202 opts
->x_ix86_isa_flags2
|= OPTION_MASK_ISA_MWAITX
;
2203 if (((processor_alias_table
[i
].flags
& PTA_PKU
) != 0)
2204 && !(opts
->x_ix86_isa_flags_explicit
& OPTION_MASK_ISA_PKU
))
2205 opts
->x_ix86_isa_flags
|= OPTION_MASK_ISA_PKU
;
2207 /* Don't enable x87 instructions if only
2208 general registers are allowed. */
2209 if (!(opts_set
->x_ix86_target_flags
& OPTION_MASK_GENERAL_REGS_ONLY
)
2210 && !(opts_set
->x_target_flags
& MASK_80387
))
2212 if (((processor_alias_table
[i
].flags
& PTA_NO_80387
) != 0))
2213 opts
->x_target_flags
&= ~MASK_80387
;
2215 opts
->x_target_flags
|= MASK_80387
;
2223 ? G_("bad value (%qs) for %<-march=%> switch")
2224 : G_("bad value (%qs) for %<target(\"arch=\")%> attribute"),
2225 opts
->x_ix86_arch_string
);
2227 auto_vec
<const char *> candidates
;
2228 for (i
= 0; i
< pta_size
; i
++)
2229 if (strcmp (processor_alias_table
[i
].name
, "generic")
2230 && strcmp (processor_alias_table
[i
].name
, "intel")
2231 && (!TARGET_64BIT_P (opts
->x_ix86_isa_flags
)
2232 || ((processor_alias_table
[i
].flags
& PTA_64BIT
) != 0)))
2233 candidates
.safe_push (processor_alias_table
[i
].name
);
2235 #ifdef HAVE_LOCAL_CPU_DETECT
2236 /* Add also "native" as possible value. */
2237 candidates
.safe_push ("native");
2242 = candidates_list_and_hint (opts
->x_ix86_arch_string
, s
, candidates
);
2244 inform (input_location
,
2246 ? G_("valid arguments to %<-march=%> switch are: "
2247 "%s; did you mean %qs?")
2248 : G_("valid arguments to %<target(\"arch=\")%> attribute are: "
2249 "%s; did you mean %qs?"), s
, hint
);
2251 inform (input_location
,
2253 ? G_("valid arguments to %<-march=%> switch are: %s")
2254 : G_("valid arguments to %<target(\"arch=\")%> attribute "
2259 ix86_arch_mask
= HOST_WIDE_INT_1U
<< ix86_arch
;
2260 for (i
= 0; i
< X86_ARCH_LAST
; ++i
)
2261 ix86_arch_features
[i
] = !!(initial_ix86_arch_features
[i
] & ix86_arch_mask
);
2263 for (i
= 0; i
< pta_size
; i
++)
2264 if (! strcmp (opts
->x_ix86_tune_string
, processor_alias_table
[i
].name
))
2266 ix86_schedule
= processor_alias_table
[i
].schedule
;
2267 ix86_tune
= processor_alias_table
[i
].processor
;
2268 if (TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
2270 if (!((processor_alias_table
[i
].flags
& PTA_64BIT
) != 0))
2272 if (ix86_tune_defaulted
)
2274 opts
->x_ix86_tune_string
= "x86-64";
2275 for (i
= 0; i
< pta_size
; i
++)
2276 if (! strcmp (opts
->x_ix86_tune_string
,
2277 processor_alias_table
[i
].name
))
2279 ix86_schedule
= processor_alias_table
[i
].schedule
;
2280 ix86_tune
= processor_alias_table
[i
].processor
;
2283 error ("CPU you selected does not support x86-64 "
2287 /* Intel CPUs have always interpreted SSE prefetch instructions as
2288 NOPs; so, we can enable SSE prefetch instructions even when
2289 -mtune (rather than -march) points us to a processor that has them.
2290 However, the VIA C3 gives a SIGILL, so we only do that for i686 and
2291 higher processors. */
2293 && ((processor_alias_table
[i
].flags
2294 & (PTA_PREFETCH_SSE
| PTA_SSE
)) != 0))
2295 x86_prefetch_sse
= true;
2299 if (ix86_tune_specified
&& i
== pta_size
)
2302 ? G_("bad value (%qs) for %<-mtune=%> switch")
2303 : G_("bad value (%qs) for %<target(\"tune=\")%> attribute"),
2304 opts
->x_ix86_tune_string
);
2306 auto_vec
<const char *> candidates
;
2307 for (i
= 0; i
< pta_size
; i
++)
2308 if (!TARGET_64BIT_P (opts
->x_ix86_isa_flags
)
2309 || ((processor_alias_table
[i
].flags
& PTA_64BIT
) != 0))
2310 candidates
.safe_push (processor_alias_table
[i
].name
);
2312 #ifdef HAVE_LOCAL_CPU_DETECT
2313 /* Add also "native" as possible value. */
2314 candidates
.safe_push ("native");
2319 = candidates_list_and_hint (opts
->x_ix86_tune_string
, s
, candidates
);
2321 inform (input_location
,
2323 ? G_("valid arguments to %<-mtune=%> switch are: "
2324 "%s; did you mean %qs?")
2325 : G_("valid arguments to %<target(\"tune=\")%> attribute are: "
2326 "%s; did you mean %qs?"), s
, hint
);
2328 inform (input_location
,
2330 ? G_("valid arguments to %<-mtune=%> switch are: %s")
2331 : G_("valid arguments to %<target(\"tune=\")%> attribute "
2336 set_ix86_tune_features (ix86_tune
, opts
->x_ix86_dump_tunes
);
2338 ix86_recompute_optlev_based_flags (opts
, opts_set
);
2340 ix86_tune_cost
= processor_cost_table
[ix86_tune
];
2341 /* TODO: ix86_cost should be chosen at instruction or function granuality
2342 so for cold code we use size_cost even in !optimize_size compilation. */
2343 if (opts
->x_optimize_size
)
2344 ix86_cost
= &ix86_size_cost
;
2346 ix86_cost
= ix86_tune_cost
;
2348 /* Arrange to set up i386_stack_locals for all functions. */
2349 init_machine_status
= ix86_init_machine_status
;
2351 /* Validate -mregparm= value. */
2352 if (opts_set
->x_ix86_regparm
)
2354 if (TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
2355 warning (0, "%<-mregparm%> is ignored in 64-bit mode");
2356 else if (TARGET_IAMCU_P (opts
->x_target_flags
))
2357 warning (0, "%<-mregparm%> is ignored for Intel MCU psABI");
2358 if (opts
->x_ix86_regparm
> REGPARM_MAX
)
2360 error ("%<-mregparm=%d%> is not between 0 and %d",
2361 opts
->x_ix86_regparm
, REGPARM_MAX
);
2362 opts
->x_ix86_regparm
= 0;
2365 if (TARGET_IAMCU_P (opts
->x_target_flags
)
2366 || TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
2367 opts
->x_ix86_regparm
= REGPARM_MAX
;
2369 /* Default align_* from the processor table. */
2370 ix86_default_align (opts
);
2372 /* Provide default for -mbranch-cost= value. */
2373 if (!opts_set
->x_ix86_branch_cost
)
2374 opts
->x_ix86_branch_cost
= ix86_tune_cost
->branch_cost
;
2376 if (TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
2378 opts
->x_target_flags
2379 |= TARGET_SUBTARGET64_DEFAULT
& ~opts_set
->x_target_flags
;
2381 if (!ix86_arch_specified
)
2382 opts
->x_ix86_isa_flags
2383 |= TARGET_SUBTARGET64_ISA_DEFAULT
& ~opts
->x_ix86_isa_flags_explicit
;
2385 if (TARGET_RTD_P (opts
->x_target_flags
))
2388 ? G_("%<-mrtd%> is ignored in 64bit mode")
2389 : G_("%<target(\"rtd\")%> is ignored in 64bit mode"));
2393 opts
->x_target_flags
2394 |= TARGET_SUBTARGET32_DEFAULT
& ~opts_set
->x_target_flags
;
2396 if (!ix86_arch_specified
)
2397 opts
->x_ix86_isa_flags
2398 |= TARGET_SUBTARGET32_ISA_DEFAULT
& ~opts
->x_ix86_isa_flags_explicit
;
2400 /* i386 ABI does not specify red zone. It still makes sense to use it
2401 when programmer takes care to stack from being destroyed. */
2402 if (!(opts_set
->x_target_flags
& MASK_NO_RED_ZONE
))
2403 opts
->x_target_flags
|= MASK_NO_RED_ZONE
;
2406 /* Keep nonleaf frame pointers. */
2407 if (opts
->x_flag_omit_frame_pointer
)
2408 opts
->x_target_flags
&= ~MASK_OMIT_LEAF_FRAME_POINTER
;
2409 else if (TARGET_OMIT_LEAF_FRAME_POINTER_P (opts
->x_target_flags
))
2410 opts
->x_flag_omit_frame_pointer
= 1;
2412 /* If we're doing fast math, we don't care about comparison order
2413 wrt NaNs. This lets us use a shorter comparison sequence. */
2414 if (opts
->x_flag_finite_math_only
)
2415 opts
->x_target_flags
&= ~MASK_IEEE_FP
;
2417 /* If the architecture always has an FPU, turn off NO_FANCY_MATH_387,
2418 since the insns won't need emulation. */
2419 if (ix86_tune_features
[X86_TUNE_ALWAYS_FANCY_MATH_387
])
2420 opts
->x_target_flags
&= ~MASK_NO_FANCY_MATH_387
;
2422 /* Likewise, if the target doesn't have a 387, or we've specified
2423 software floating point, don't use 387 inline intrinsics. */
2424 if (!TARGET_80387_P (opts
->x_target_flags
))
2425 opts
->x_target_flags
|= MASK_NO_FANCY_MATH_387
;
2427 /* Turn on MMX builtins for -msse. */
2428 if (TARGET_SSE_P (opts
->x_ix86_isa_flags
))
2429 opts
->x_ix86_isa_flags
2430 |= OPTION_MASK_ISA_MMX
& ~opts
->x_ix86_isa_flags_explicit
;
2432 /* Enable SSE prefetch. */
2433 if (TARGET_SSE_P (opts
->x_ix86_isa_flags
)
2434 || (TARGET_PRFCHW_P (opts
->x_ix86_isa_flags
)
2435 && !TARGET_3DNOW_P (opts
->x_ix86_isa_flags
))
2436 || TARGET_PREFETCHWT1_P (opts
->x_ix86_isa_flags
))
2437 x86_prefetch_sse
= true;
2439 /* Enable popcnt instruction for -msse4.2 or -mabm. */
2440 if (TARGET_SSE4_2_P (opts
->x_ix86_isa_flags
)
2441 || TARGET_ABM_P (opts
->x_ix86_isa_flags
))
2442 opts
->x_ix86_isa_flags
2443 |= OPTION_MASK_ISA_POPCNT
& ~opts
->x_ix86_isa_flags_explicit
;
2445 /* Enable lzcnt instruction for -mabm. */
2446 if (TARGET_ABM_P(opts
->x_ix86_isa_flags
))
2447 opts
->x_ix86_isa_flags
2448 |= OPTION_MASK_ISA_LZCNT
& ~opts
->x_ix86_isa_flags_explicit
;
2450 /* Disable BMI, BMI2 and TBM instructions for -m16. */
2451 if (TARGET_16BIT_P(opts
->x_ix86_isa_flags
))
2452 opts
->x_ix86_isa_flags
2453 &= ~((OPTION_MASK_ISA_BMI
| OPTION_MASK_ISA_BMI2
| OPTION_MASK_ISA_TBM
)
2454 & ~opts
->x_ix86_isa_flags_explicit
);
2456 /* Validate -mpreferred-stack-boundary= value or default it to
2457 PREFERRED_STACK_BOUNDARY_DEFAULT. */
2458 ix86_preferred_stack_boundary
= PREFERRED_STACK_BOUNDARY_DEFAULT
;
2459 if (opts_set
->x_ix86_preferred_stack_boundary_arg
)
2461 int min
= TARGET_64BIT_P (opts
->x_ix86_isa_flags
)? 3 : 2;
2462 int max
= TARGET_SEH
? 4 : 12;
2464 if (opts
->x_ix86_preferred_stack_boundary_arg
< min
2465 || opts
->x_ix86_preferred_stack_boundary_arg
> max
)
2468 error ("%<-mpreferred-stack-boundary%> is not supported "
2471 error ("%<-mpreferred-stack-boundary=%d%> is not between %d and %d",
2472 opts
->x_ix86_preferred_stack_boundary_arg
, min
, max
);
2475 ix86_preferred_stack_boundary
2476 = (1 << opts
->x_ix86_preferred_stack_boundary_arg
) * BITS_PER_UNIT
;
2479 /* Set the default value for -mstackrealign. */
2480 if (!opts_set
->x_ix86_force_align_arg_pointer
)
2481 opts
->x_ix86_force_align_arg_pointer
= STACK_REALIGN_DEFAULT
;
2483 ix86_default_incoming_stack_boundary
= PREFERRED_STACK_BOUNDARY
;
2485 /* Validate -mincoming-stack-boundary= value or default it to
2486 MIN_STACK_BOUNDARY/PREFERRED_STACK_BOUNDARY. */
2487 ix86_incoming_stack_boundary
= ix86_default_incoming_stack_boundary
;
2488 if (opts_set
->x_ix86_incoming_stack_boundary_arg
)
2490 int min
= TARGET_64BIT_P (opts
->x_ix86_isa_flags
) ? 3 : 2;
2492 if (opts
->x_ix86_incoming_stack_boundary_arg
< min
2493 || opts
->x_ix86_incoming_stack_boundary_arg
> 12)
2494 error ("%<-mincoming-stack-boundary=%d%> is not between %d and 12",
2495 opts
->x_ix86_incoming_stack_boundary_arg
, min
);
2498 ix86_user_incoming_stack_boundary
2499 = (1 << opts
->x_ix86_incoming_stack_boundary_arg
) * BITS_PER_UNIT
;
2500 ix86_incoming_stack_boundary
2501 = ix86_user_incoming_stack_boundary
;
2505 #ifndef NO_PROFILE_COUNTERS
2506 if (flag_nop_mcount
)
2507 error ("%<-mnop-mcount%> is not compatible with this target");
2509 if (flag_nop_mcount
&& flag_pic
)
2510 error ("%<-mnop-mcount%> is not implemented for %<-fPIC%>");
2512 /* Accept -msseregparm only if at least SSE support is enabled. */
2513 if (TARGET_SSEREGPARM_P (opts
->x_target_flags
)
2514 && ! TARGET_SSE_P (opts
->x_ix86_isa_flags
))
2516 ? G_("%<-msseregparm%> used without SSE enabled")
2517 : G_("%<target(\"sseregparm\")%> used without SSE enabled"));
2519 if (opts_set
->x_ix86_fpmath
)
2521 if (opts
->x_ix86_fpmath
& FPMATH_SSE
)
2523 if (!TARGET_SSE_P (opts
->x_ix86_isa_flags
))
2525 if (TARGET_80387_P (opts
->x_target_flags
))
2527 warning (0, "SSE instruction set disabled, using 387 arithmetics");
2528 opts
->x_ix86_fpmath
= FPMATH_387
;
2531 else if ((opts
->x_ix86_fpmath
& FPMATH_387
)
2532 && !TARGET_80387_P (opts
->x_target_flags
))
2534 warning (0, "387 instruction set disabled, using SSE arithmetics");
2535 opts
->x_ix86_fpmath
= FPMATH_SSE
;
2539 /* For all chips supporting SSE2, -mfpmath=sse performs better than
2540 fpmath=387. The second is however default at many targets since the
2541 extra 80bit precision of temporaries is considered to be part of ABI.
2542 Overwrite the default at least for -ffast-math.
2543 TODO: -mfpmath=both seems to produce same performing code with bit
2544 smaller binaries. It is however not clear if register allocation is
2545 ready for this setting.
2546 Also -mfpmath=387 is overall a lot more compact (bout 4-5%) than SSE
2547 codegen. We may switch to 387 with -ffast-math for size optimized
2549 else if (fast_math_flags_set_p (&global_options
)
2550 && TARGET_SSE2_P (opts
->x_ix86_isa_flags
))
2551 opts
->x_ix86_fpmath
= FPMATH_SSE
;
2553 opts
->x_ix86_fpmath
= TARGET_FPMATH_DEFAULT_P (opts
->x_ix86_isa_flags
);
2555 /* Use external vectorized library in vectorizing intrinsics. */
2556 if (opts_set
->x_ix86_veclibabi_type
)
2557 switch (opts
->x_ix86_veclibabi_type
)
2559 case ix86_veclibabi_type_svml
:
2560 ix86_veclib_handler
= &ix86_veclibabi_svml
;
2563 case ix86_veclibabi_type_acml
:
2564 ix86_veclib_handler
= &ix86_veclibabi_acml
;
2571 if (ix86_tune_features
[X86_TUNE_ACCUMULATE_OUTGOING_ARGS
]
2572 && !(opts_set
->x_target_flags
& MASK_ACCUMULATE_OUTGOING_ARGS
))
2573 opts
->x_target_flags
|= MASK_ACCUMULATE_OUTGOING_ARGS
;
2575 /* If stack probes are required, the space used for large function
2576 arguments on the stack must also be probed, so enable
2577 -maccumulate-outgoing-args so this happens in the prologue. */
2578 if (TARGET_STACK_PROBE_P (opts
->x_target_flags
)
2579 && !(opts
->x_target_flags
& MASK_ACCUMULATE_OUTGOING_ARGS
))
2581 if (opts_set
->x_target_flags
& MASK_ACCUMULATE_OUTGOING_ARGS
)
2584 ? G_("stack probing requires %<-maccumulate-outgoing-args%> "
2586 : G_("stack probing requires "
2587 "%<target(\"accumulate-outgoing-args\")%> for "
2589 opts
->x_target_flags
|= MASK_ACCUMULATE_OUTGOING_ARGS
;
2592 /* Stack realignment without -maccumulate-outgoing-args requires %ebp,
2593 so enable -maccumulate-outgoing-args when %ebp is fixed. */
2594 if (fixed_regs
[BP_REG
]
2595 && !(opts
->x_target_flags
& MASK_ACCUMULATE_OUTGOING_ARGS
))
2597 if (opts_set
->x_target_flags
& MASK_ACCUMULATE_OUTGOING_ARGS
)
2600 ? G_("fixed ebp register requires "
2601 "%<-maccumulate-outgoing-args%>")
2602 : G_("fixed ebp register requires "
2603 "%<target(\"accumulate-outgoing-args\")%>"));
2604 opts
->x_target_flags
|= MASK_ACCUMULATE_OUTGOING_ARGS
;
2607 /* Figure out what ASM_GENERATE_INTERNAL_LABEL builds as a prefix. */
2610 ASM_GENERATE_INTERNAL_LABEL (internal_label_prefix
, "LX", 0);
2611 p
= strchr (internal_label_prefix
, 'X');
2612 internal_label_prefix_len
= p
- internal_label_prefix
;
2616 /* When scheduling description is not available, disable scheduler pass
2617 so it won't slow down the compilation and make x87 code slower. */
2618 if (!TARGET_SCHEDULE
)
2619 opts
->x_flag_schedule_insns_after_reload
= opts
->x_flag_schedule_insns
= 0;
2621 SET_OPTION_IF_UNSET (opts
, opts_set
, param_simultaneous_prefetches
,
2622 ix86_tune_cost
->simultaneous_prefetches
);
2623 SET_OPTION_IF_UNSET (opts
, opts_set
, param_l1_cache_line_size
,
2624 ix86_tune_cost
->prefetch_block
);
2625 SET_OPTION_IF_UNSET (opts
, opts_set
, param_l1_cache_size
,
2626 ix86_tune_cost
->l1_cache_size
);
2627 SET_OPTION_IF_UNSET (opts
, opts_set
, param_l2_cache_size
,
2628 ix86_tune_cost
->l2_cache_size
);
2630 /* Enable sw prefetching at -O3 for CPUS that prefetching is helpful. */
2631 if (opts
->x_flag_prefetch_loop_arrays
< 0
2633 && (opts
->x_optimize
>= 3 || opts
->x_flag_profile_use
)
2634 && !opts
->x_optimize_size
2635 && TARGET_SOFTWARE_PREFETCHING_BENEFICIAL
)
2636 opts
->x_flag_prefetch_loop_arrays
= 1;
2638 /* If using typedef char *va_list, signal that __builtin_va_start (&ap, 0)
2639 can be opts->x_optimized to ap = __builtin_next_arg (0). */
2640 if (!TARGET_64BIT_P (opts
->x_ix86_isa_flags
) && !opts
->x_flag_split_stack
)
2641 targetm
.expand_builtin_va_start
= NULL
;
2644 /* Use -mcld by default for 32-bit code if configured with --enable-cld. */
2645 if (!TARGET_64BIT_P (opts
->x_ix86_isa_flags
))
2646 opts
->x_target_flags
|= MASK_CLD
& ~opts_set
->x_target_flags
;
2649 /* Set the default value for -mfentry. */
2650 if (!opts_set
->x_flag_fentry
)
2651 opts
->x_flag_fentry
= TARGET_SEH
;
2654 if (!TARGET_64BIT_P (opts
->x_ix86_isa_flags
) && opts
->x_flag_pic
2655 && opts
->x_flag_fentry
)
2656 sorry ("%<-mfentry%> isn%'t supported for 32-bit in combination "
2658 else if (TARGET_SEH
&& !opts
->x_flag_fentry
)
2659 sorry ("%<-mno-fentry%> isn%'t compatible with SEH");
2662 if (TARGET_SEH
&& TARGET_CALL_MS2SYSV_XLOGUES
)
2663 sorry ("%<-mcall-ms2sysv-xlogues%> isn%'t currently supported with SEH");
2665 if (!(opts_set
->x_target_flags
& MASK_VZEROUPPER
)
2666 && TARGET_EMIT_VZEROUPPER
)
2667 opts
->x_target_flags
|= MASK_VZEROUPPER
;
2668 if (!(opts_set
->x_target_flags
& MASK_STV
))
2669 opts
->x_target_flags
|= MASK_STV
;
2670 /* Disable STV if -mpreferred-stack-boundary={2,3} or
2671 -mincoming-stack-boundary={2,3} or -mstackrealign - the needed
2672 stack realignment will be extra cost the pass doesn't take into
2673 account and the pass can't realign the stack. */
2674 if (ix86_preferred_stack_boundary
< 128
2675 || ix86_incoming_stack_boundary
< 128
2676 || opts
->x_ix86_force_align_arg_pointer
)
2677 opts
->x_target_flags
&= ~MASK_STV
;
2678 if (!ix86_tune_features
[X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL
]
2679 && !(opts_set
->x_target_flags
& MASK_AVX256_SPLIT_UNALIGNED_LOAD
))
2680 opts
->x_target_flags
|= MASK_AVX256_SPLIT_UNALIGNED_LOAD
;
2681 if (!ix86_tune_features
[X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL
]
2682 && !(opts_set
->x_target_flags
& MASK_AVX256_SPLIT_UNALIGNED_STORE
))
2683 opts
->x_target_flags
|= MASK_AVX256_SPLIT_UNALIGNED_STORE
;
2685 /* Enable 128-bit AVX instruction generation
2686 for the auto-vectorizer. */
2687 if (TARGET_AVX128_OPTIMAL
2688 && (opts_set
->x_prefer_vector_width_type
== PVW_NONE
))
2689 opts
->x_prefer_vector_width_type
= PVW_AVX128
;
2691 /* Use 256-bit AVX instruction generation
2692 in the auto-vectorizer. */
2693 if (ix86_tune_features
[X86_TUNE_AVX256_OPTIMAL
]
2694 && (opts_set
->x_prefer_vector_width_type
== PVW_NONE
))
2695 opts
->x_prefer_vector_width_type
= PVW_AVX256
;
2697 if (opts
->x_ix86_recip_name
)
2699 char *p
= ASTRDUP (opts
->x_ix86_recip_name
);
2701 unsigned int mask
, i
;
2704 while ((q
= strtok (p
, ",")) != NULL
)
2715 if (!strcmp (q
, "default"))
2716 mask
= RECIP_MASK_ALL
;
2719 for (i
= 0; i
< ARRAY_SIZE (recip_options
); i
++)
2720 if (!strcmp (q
, recip_options
[i
].string
))
2722 mask
= recip_options
[i
].mask
;
2726 if (i
== ARRAY_SIZE (recip_options
))
2728 error ("unknown option for %<-mrecip=%s%>", q
);
2730 mask
= RECIP_MASK_NONE
;
2734 opts
->x_recip_mask_explicit
|= mask
;
2736 opts
->x_recip_mask
&= ~mask
;
2738 opts
->x_recip_mask
|= mask
;
2742 if (TARGET_RECIP_P (opts
->x_target_flags
))
2743 opts
->x_recip_mask
|= RECIP_MASK_ALL
& ~opts
->x_recip_mask_explicit
;
2744 else if (opts_set
->x_target_flags
& MASK_RECIP
)
2745 opts
->x_recip_mask
&= ~(RECIP_MASK_ALL
& ~opts
->x_recip_mask_explicit
);
2747 /* Default long double to 64-bit for 32-bit Bionic and to __float128
2748 for 64-bit Bionic. Also default long double to 64-bit for Intel
2750 if ((TARGET_HAS_BIONIC
|| TARGET_IAMCU
)
2751 && !(opts_set
->x_target_flags
2752 & (MASK_LONG_DOUBLE_64
| MASK_LONG_DOUBLE_128
)))
2753 opts
->x_target_flags
|= (TARGET_64BIT
2754 ? MASK_LONG_DOUBLE_128
2755 : MASK_LONG_DOUBLE_64
);
2757 /* Only one of them can be active. */
2758 gcc_assert ((opts
->x_target_flags
& MASK_LONG_DOUBLE_64
) == 0
2759 || (opts
->x_target_flags
& MASK_LONG_DOUBLE_128
) == 0);
2761 /* Handle stack protector */
2762 if (!opts_set
->x_ix86_stack_protector_guard
)
2764 #ifdef TARGET_THREAD_SSP_OFFSET
2765 if (!TARGET_HAS_BIONIC
)
2766 opts
->x_ix86_stack_protector_guard
= SSP_TLS
;
2769 opts
->x_ix86_stack_protector_guard
= SSP_GLOBAL
;
2772 if (opts_set
->x_ix86_stack_protector_guard_offset_str
)
2775 const char *str
= opts
->x_ix86_stack_protector_guard_offset_str
;
2780 #if defined(INT64_T_IS_LONG)
2781 offset
= strtol (str
, &endp
, 0);
2783 offset
= strtoll (str
, &endp
, 0);
2786 if (!*str
|| *endp
|| errno
)
2787 error ("%qs is not a valid number "
2788 "in %<-mstack-protector-guard-offset=%>", str
);
2790 if (!IN_RANGE (offset
, HOST_WIDE_INT_C (-0x80000000),
2791 HOST_WIDE_INT_C (0x7fffffff)))
2792 error ("%qs is not a valid offset "
2793 "in %<-mstack-protector-guard-offset=%>", str
);
2795 opts
->x_ix86_stack_protector_guard_offset
= offset
;
2797 #ifdef TARGET_THREAD_SSP_OFFSET
2799 opts
->x_ix86_stack_protector_guard_offset
= TARGET_THREAD_SSP_OFFSET
;
2802 if (opts_set
->x_ix86_stack_protector_guard_reg_str
)
2804 const char *str
= opts
->x_ix86_stack_protector_guard_reg_str
;
2805 addr_space_t seg
= ADDR_SPACE_GENERIC
;
2807 /* Discard optional register prefix. */
2811 if (strlen (str
) == 2 && str
[1] == 's')
2814 seg
= ADDR_SPACE_SEG_FS
;
2815 else if (str
[0] == 'g')
2816 seg
= ADDR_SPACE_SEG_GS
;
2819 if (seg
== ADDR_SPACE_GENERIC
)
2820 error ("%qs is not a valid base register "
2821 "in %<-mstack-protector-guard-reg=%>",
2822 opts
->x_ix86_stack_protector_guard_reg_str
);
2824 opts
->x_ix86_stack_protector_guard_reg
= seg
;
2828 opts
->x_ix86_stack_protector_guard_reg
= DEFAULT_TLS_SEG_REG
;
2830 /* The kernel uses a different segment register for performance
2831 reasons; a system call would not have to trash the userspace
2832 segment register, which would be expensive. */
2833 if (opts
->x_ix86_cmodel
== CM_KERNEL
)
2834 opts
->x_ix86_stack_protector_guard_reg
= ADDR_SPACE_SEG_GS
;
2837 /* Handle -mmemcpy-strategy= and -mmemset-strategy= */
2838 if (opts
->x_ix86_tune_memcpy_strategy
)
2840 char *str
= xstrdup (opts
->x_ix86_tune_memcpy_strategy
);
2841 ix86_parse_stringop_strategy_string (str
, false);
2845 if (opts
->x_ix86_tune_memset_strategy
)
2847 char *str
= xstrdup (opts
->x_ix86_tune_memset_strategy
);
2848 ix86_parse_stringop_strategy_string (str
, true);
2852 /* Save the initial options in case the user does function specific
2855 target_option_default_node
= target_option_current_node
2856 = build_target_option_node (opts
);
2858 if (opts
->x_flag_cf_protection
!= CF_NONE
)
2859 opts
->x_flag_cf_protection
2860 = (cf_protection_level
) (opts
->x_flag_cf_protection
| CF_SET
);
2862 if (ix86_tune_features
[X86_TUNE_AVOID_256FMA_CHAINS
])
2863 SET_OPTION_IF_UNSET (opts
, opts_set
, param_avoid_fma_max_bits
, 256);
2864 else if (ix86_tune_features
[X86_TUNE_AVOID_128FMA_CHAINS
])
2865 SET_OPTION_IF_UNSET (opts
, opts_set
, param_avoid_fma_max_bits
, 128);
2867 /* PR86952: jump table usage with retpolines is slow.
2868 The PR provides some numbers about the slowness. */
2869 if (ix86_indirect_branch
!= indirect_branch_keep
2870 && !opts_set
->x_flag_jump_tables
)
2871 opts
->x_flag_jump_tables
= 0;
2876 /* Implement the TARGET_OPTION_OVERRIDE hook. */
2879 ix86_option_override (void)
2881 ix86_option_override_internal (true, &global_options
, &global_options_set
);
2884 /* Remember the last target of ix86_set_current_function. */
2885 static GTY(()) tree ix86_previous_fndecl
;
2887 /* Set targets globals to the default (or current #pragma GCC target
2888 if active). Invalidate ix86_previous_fndecl cache. */
2891 ix86_reset_previous_fndecl (void)
2893 tree new_tree
= target_option_current_node
;
2894 cl_target_option_restore (&global_options
, TREE_TARGET_OPTION (new_tree
));
2895 if (TREE_TARGET_GLOBALS (new_tree
))
2896 restore_target_globals (TREE_TARGET_GLOBALS (new_tree
));
2897 else if (new_tree
== target_option_default_node
)
2898 restore_target_globals (&default_target_globals
);
2900 TREE_TARGET_GLOBALS (new_tree
) = save_target_globals_default_opts ();
2901 ix86_previous_fndecl
= NULL_TREE
;
2904 /* Add target attribute to SIMD clone NODE if needed. */
2907 ix86_simd_clone_adjust (struct cgraph_node
*node
)
2909 const char *str
= NULL
;
2911 /* Attributes need to be adjusted for definitions, not declarations. */
2912 if (!node
->definition
)
2915 gcc_assert (node
->decl
== cfun
->decl
);
2916 switch (node
->simdclone
->vecsize_mangle
)
2931 if (!TARGET_AVX512F
)
2940 tree args
= build_tree_list (NULL_TREE
, build_string (strlen (str
), str
));
2941 bool ok
= ix86_valid_target_attribute_p (node
->decl
, NULL
, args
, 0);
2944 ix86_reset_previous_fndecl ();
2945 ix86_set_current_function (node
->decl
);
2950 /* Set the func_type field from the function FNDECL. */
2953 ix86_set_func_type (tree fndecl
)
2955 if (cfun
->machine
->func_type
== TYPE_UNKNOWN
)
2957 if (lookup_attribute ("interrupt",
2958 TYPE_ATTRIBUTES (TREE_TYPE (fndecl
))))
2960 if (ix86_function_naked (fndecl
))
2961 error_at (DECL_SOURCE_LOCATION (fndecl
),
2962 "interrupt and naked attributes are not compatible");
2965 for (tree arg
= DECL_ARGUMENTS (fndecl
);
2967 arg
= TREE_CHAIN (arg
))
2969 cfun
->machine
->no_caller_saved_registers
= true;
2970 cfun
->machine
->func_type
2971 = nargs
== 2 ? TYPE_EXCEPTION
: TYPE_INTERRUPT
;
2973 ix86_optimize_mode_switching
[X86_DIRFLAG
] = 1;
2975 /* Only dwarf2out.c can handle -WORD(AP) as a pointer argument. */
2976 if (write_symbols
!= NO_DEBUG
&& write_symbols
!= DWARF2_DEBUG
)
2977 sorry ("only DWARF debug format is supported for interrupt "
2982 cfun
->machine
->func_type
= TYPE_NORMAL
;
2983 if (lookup_attribute ("no_caller_saved_registers",
2984 TYPE_ATTRIBUTES (TREE_TYPE (fndecl
))))
2985 cfun
->machine
->no_caller_saved_registers
= true;
2990 /* Set the indirect_branch_type field from the function FNDECL. */
2993 ix86_set_indirect_branch_type (tree fndecl
)
2995 if (cfun
->machine
->indirect_branch_type
== indirect_branch_unset
)
2997 tree attr
= lookup_attribute ("indirect_branch",
2998 DECL_ATTRIBUTES (fndecl
));
3001 tree args
= TREE_VALUE (attr
);
3004 tree cst
= TREE_VALUE (args
);
3005 if (strcmp (TREE_STRING_POINTER (cst
), "keep") == 0)
3006 cfun
->machine
->indirect_branch_type
= indirect_branch_keep
;
3007 else if (strcmp (TREE_STRING_POINTER (cst
), "thunk") == 0)
3008 cfun
->machine
->indirect_branch_type
= indirect_branch_thunk
;
3009 else if (strcmp (TREE_STRING_POINTER (cst
), "thunk-inline") == 0)
3010 cfun
->machine
->indirect_branch_type
= indirect_branch_thunk_inline
;
3011 else if (strcmp (TREE_STRING_POINTER (cst
), "thunk-extern") == 0)
3012 cfun
->machine
->indirect_branch_type
= indirect_branch_thunk_extern
;
3017 cfun
->machine
->indirect_branch_type
= ix86_indirect_branch
;
3019 /* -mcmodel=large is not compatible with -mindirect-branch=thunk
3020 nor -mindirect-branch=thunk-extern. */
3021 if ((ix86_cmodel
== CM_LARGE
|| ix86_cmodel
== CM_LARGE_PIC
)
3022 && ((cfun
->machine
->indirect_branch_type
3023 == indirect_branch_thunk_extern
)
3024 || (cfun
->machine
->indirect_branch_type
3025 == indirect_branch_thunk
)))
3026 error ("%<-mindirect-branch=%s%> and %<-mcmodel=large%> are not "
3028 ((cfun
->machine
->indirect_branch_type
3029 == indirect_branch_thunk_extern
)
3030 ? "thunk-extern" : "thunk"));
3032 if (cfun
->machine
->indirect_branch_type
!= indirect_branch_keep
3033 && (flag_cf_protection
& CF_RETURN
))
3034 error ("%<-mindirect-branch%> and %<-fcf-protection%> are not "
3038 if (cfun
->machine
->function_return_type
== indirect_branch_unset
)
3040 tree attr
= lookup_attribute ("function_return",
3041 DECL_ATTRIBUTES (fndecl
));
3044 tree args
= TREE_VALUE (attr
);
3047 tree cst
= TREE_VALUE (args
);
3048 if (strcmp (TREE_STRING_POINTER (cst
), "keep") == 0)
3049 cfun
->machine
->function_return_type
= indirect_branch_keep
;
3050 else if (strcmp (TREE_STRING_POINTER (cst
), "thunk") == 0)
3051 cfun
->machine
->function_return_type
= indirect_branch_thunk
;
3052 else if (strcmp (TREE_STRING_POINTER (cst
), "thunk-inline") == 0)
3053 cfun
->machine
->function_return_type
= indirect_branch_thunk_inline
;
3054 else if (strcmp (TREE_STRING_POINTER (cst
), "thunk-extern") == 0)
3055 cfun
->machine
->function_return_type
= indirect_branch_thunk_extern
;
3060 cfun
->machine
->function_return_type
= ix86_function_return
;
3062 /* -mcmodel=large is not compatible with -mfunction-return=thunk
3063 nor -mfunction-return=thunk-extern. */
3064 if ((ix86_cmodel
== CM_LARGE
|| ix86_cmodel
== CM_LARGE_PIC
)
3065 && ((cfun
->machine
->function_return_type
3066 == indirect_branch_thunk_extern
)
3067 || (cfun
->machine
->function_return_type
3068 == indirect_branch_thunk
)))
3069 error ("%<-mfunction-return=%s%> and %<-mcmodel=large%> are not "
3071 ((cfun
->machine
->function_return_type
3072 == indirect_branch_thunk_extern
)
3073 ? "thunk-extern" : "thunk"));
3075 if (cfun
->machine
->function_return_type
!= indirect_branch_keep
3076 && (flag_cf_protection
& CF_RETURN
))
3077 error ("%<-mfunction-return%> and %<-fcf-protection%> are not "
3082 /* Establish appropriate back-end context for processing the function
3083 FNDECL. The argument might be NULL to indicate processing at top
3084 level, outside of any function scope. */
3086 ix86_set_current_function (tree fndecl
)
3088 /* Only change the context if the function changes. This hook is called
3089 several times in the course of compiling a function, and we don't want to
3090 slow things down too much or call target_reinit when it isn't safe. */
3091 if (fndecl
== ix86_previous_fndecl
)
3093 /* There may be 2 function bodies for the same function FNDECL,
3094 one is extern inline and one isn't. Call ix86_set_func_type
3095 to set the func_type field. */
3096 if (fndecl
!= NULL_TREE
)
3098 ix86_set_func_type (fndecl
);
3099 ix86_set_indirect_branch_type (fndecl
);
3105 if (ix86_previous_fndecl
== NULL_TREE
)
3106 old_tree
= target_option_current_node
;
3107 else if (DECL_FUNCTION_SPECIFIC_TARGET (ix86_previous_fndecl
))
3108 old_tree
= DECL_FUNCTION_SPECIFIC_TARGET (ix86_previous_fndecl
);
3110 old_tree
= target_option_default_node
;
3112 if (fndecl
== NULL_TREE
)
3114 if (old_tree
!= target_option_current_node
)
3115 ix86_reset_previous_fndecl ();
3119 ix86_set_func_type (fndecl
);
3120 ix86_set_indirect_branch_type (fndecl
);
3122 tree new_tree
= DECL_FUNCTION_SPECIFIC_TARGET (fndecl
);
3123 if (new_tree
== NULL_TREE
)
3124 new_tree
= target_option_default_node
;
3126 if (old_tree
!= new_tree
)
3128 cl_target_option_restore (&global_options
, TREE_TARGET_OPTION (new_tree
));
3129 if (TREE_TARGET_GLOBALS (new_tree
))
3130 restore_target_globals (TREE_TARGET_GLOBALS (new_tree
));
3131 else if (new_tree
== target_option_default_node
)
3132 restore_target_globals (&default_target_globals
);
3134 TREE_TARGET_GLOBALS (new_tree
) = save_target_globals_default_opts ();
3136 ix86_previous_fndecl
= fndecl
;
3138 static bool prev_no_caller_saved_registers
;
3140 /* 64-bit MS and SYSV ABI have different set of call used registers.
3141 Avoid expensive re-initialization of init_regs each time we switch
3142 function context. */
3144 && (call_used_or_fixed_reg_p (SI_REG
)
3145 == (cfun
->machine
->call_abi
== MS_ABI
)))
3147 /* Need to re-initialize init_regs if caller-saved registers are
3149 else if (prev_no_caller_saved_registers
3150 != cfun
->machine
->no_caller_saved_registers
)
3153 if (cfun
->machine
->func_type
!= TYPE_NORMAL
3154 || cfun
->machine
->no_caller_saved_registers
)
3156 /* Don't allow SSE, MMX nor x87 instructions since they
3157 may change processor state. */
3161 else if (TARGET_MMX
)
3163 else if (TARGET_80387
)
3169 if (cfun
->machine
->func_type
!= TYPE_NORMAL
)
3170 sorry (cfun
->machine
->func_type
== TYPE_EXCEPTION
3171 ? G_("%s instructions aren%'t allowed in an"
3172 " exception service routine")
3173 : G_("%s instructions aren%'t allowed in an"
3174 " interrupt service routine"),
3177 sorry ("%s instructions aren%'t allowed in a function with "
3178 "the %<no_caller_saved_registers%> attribute", isa
);
3179 /* Don't issue the same error twice. */
3180 cfun
->machine
->func_type
= TYPE_NORMAL
;
3181 cfun
->machine
->no_caller_saved_registers
= false;
3185 prev_no_caller_saved_registers
3186 = cfun
->machine
->no_caller_saved_registers
;
3189 /* Implement the TARGET_OFFLOAD_OPTIONS hook. */
3191 ix86_offload_options (void)
3194 return xstrdup ("-foffload-abi=lp64");
3195 return xstrdup ("-foffload-abi=ilp32");
3198 /* Handle "cdecl", "stdcall", "fastcall", "regparm", "thiscall",
3199 and "sseregparm" calling convention attributes;
3200 arguments as in struct attribute_spec.handler. */
3203 ix86_handle_cconv_attribute (tree
*node
, tree name
, tree args
, int,
3206 if (TREE_CODE (*node
) != FUNCTION_TYPE
3207 && TREE_CODE (*node
) != METHOD_TYPE
3208 && TREE_CODE (*node
) != FIELD_DECL
3209 && TREE_CODE (*node
) != TYPE_DECL
)
3211 warning (OPT_Wattributes
, "%qE attribute only applies to functions",
3213 *no_add_attrs
= true;
3217 /* Can combine regparm with all attributes but fastcall, and thiscall. */
3218 if (is_attribute_p ("regparm", name
))
3222 if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (*node
)))
3224 error ("fastcall and regparm attributes are not compatible");
3227 if (lookup_attribute ("thiscall", TYPE_ATTRIBUTES (*node
)))
3229 error ("regparam and thiscall attributes are not compatible");
3232 cst
= TREE_VALUE (args
);
3233 if (TREE_CODE (cst
) != INTEGER_CST
)
3235 warning (OPT_Wattributes
,
3236 "%qE attribute requires an integer constant argument",
3238 *no_add_attrs
= true;
3240 else if (compare_tree_int (cst
, REGPARM_MAX
) > 0)
3242 warning (OPT_Wattributes
, "argument to %qE attribute larger than %d",
3244 *no_add_attrs
= true;
3252 /* Do not warn when emulating the MS ABI. */
3253 if ((TREE_CODE (*node
) != FUNCTION_TYPE
3254 && TREE_CODE (*node
) != METHOD_TYPE
)
3255 || ix86_function_type_abi (*node
) != MS_ABI
)
3256 warning (OPT_Wattributes
, "%qE attribute ignored",
3258 *no_add_attrs
= true;
3262 /* Can combine fastcall with stdcall (redundant) and sseregparm. */
3263 if (is_attribute_p ("fastcall", name
))
3265 if (lookup_attribute ("cdecl", TYPE_ATTRIBUTES (*node
)))
3267 error ("fastcall and cdecl attributes are not compatible");
3269 if (lookup_attribute ("stdcall", TYPE_ATTRIBUTES (*node
)))
3271 error ("fastcall and stdcall attributes are not compatible");
3273 if (lookup_attribute ("regparm", TYPE_ATTRIBUTES (*node
)))
3275 error ("fastcall and regparm attributes are not compatible");
3277 if (lookup_attribute ("thiscall", TYPE_ATTRIBUTES (*node
)))
3279 error ("fastcall and thiscall attributes are not compatible");
3283 /* Can combine stdcall with fastcall (redundant), regparm and
3285 else if (is_attribute_p ("stdcall", name
))
3287 if (lookup_attribute ("cdecl", TYPE_ATTRIBUTES (*node
)))
3289 error ("stdcall and cdecl attributes are not compatible");
3291 if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (*node
)))
3293 error ("stdcall and fastcall attributes are not compatible");
3295 if (lookup_attribute ("thiscall", TYPE_ATTRIBUTES (*node
)))
3297 error ("stdcall and thiscall attributes are not compatible");
3301 /* Can combine cdecl with regparm and sseregparm. */
3302 else if (is_attribute_p ("cdecl", name
))
3304 if (lookup_attribute ("stdcall", TYPE_ATTRIBUTES (*node
)))
3306 error ("stdcall and cdecl attributes are not compatible");
3308 if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (*node
)))
3310 error ("fastcall and cdecl attributes are not compatible");
3312 if (lookup_attribute ("thiscall", TYPE_ATTRIBUTES (*node
)))
3314 error ("cdecl and thiscall attributes are not compatible");
3317 else if (is_attribute_p ("thiscall", name
))
3319 if (TREE_CODE (*node
) != METHOD_TYPE
&& pedantic
)
3320 warning (OPT_Wattributes
, "%qE attribute is used for non-class method",
3322 if (lookup_attribute ("stdcall", TYPE_ATTRIBUTES (*node
)))
3324 error ("stdcall and thiscall attributes are not compatible");
3326 if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (*node
)))
3328 error ("fastcall and thiscall attributes are not compatible");
3330 if (lookup_attribute ("cdecl", TYPE_ATTRIBUTES (*node
)))
3332 error ("cdecl and thiscall attributes are not compatible");
3336 /* Can combine sseregparm with all attributes. */
3341 #ifndef CHECK_STACK_LIMIT
3342 #define CHECK_STACK_LIMIT (-1)
3345 /* The transactional memory builtins are implicitly regparm or fastcall
3346 depending on the ABI. Override the generic do-nothing attribute that
3347 these builtins were declared with, and replace it with one of the two
3348 attributes that we expect elsewhere. */
3351 ix86_handle_tm_regparm_attribute (tree
*node
, tree
, tree
,
3352 int flags
, bool *no_add_attrs
)
3356 /* In no case do we want to add the placeholder attribute. */
3357 *no_add_attrs
= true;
3359 /* The 64-bit ABI is unchanged for transactional memory. */
3363 /* ??? Is there a better way to validate 32-bit windows? We have
3364 cfun->machine->call_abi, but that seems to be set only for 64-bit. */
3365 if (CHECK_STACK_LIMIT
> 0)
3366 alt
= tree_cons (get_identifier ("fastcall"), NULL
, NULL
);
3369 alt
= tree_cons (NULL
, build_int_cst (NULL
, 2), NULL
);
3370 alt
= tree_cons (get_identifier ("regparm"), alt
, NULL
);
3372 decl_attributes (node
, alt
, flags
);
3377 /* Handle a "force_align_arg_pointer" attribute. */
3380 ix86_handle_force_align_arg_pointer_attribute (tree
*node
, tree name
,
3381 tree
, int, bool *no_add_attrs
)
3383 if (TREE_CODE (*node
) != FUNCTION_TYPE
3384 && TREE_CODE (*node
) != METHOD_TYPE
3385 && TREE_CODE (*node
) != FIELD_DECL
3386 && TREE_CODE (*node
) != TYPE_DECL
)
3388 warning (OPT_Wattributes
, "%qE attribute only applies to functions",
3390 *no_add_attrs
= true;
3396 /* Handle a "ms_struct" or "gcc_struct" attribute; arguments as in
3397 struct attribute_spec.handler. */
3400 ix86_handle_struct_attribute (tree
*node
, tree name
, tree
, int,
3406 if (TREE_CODE (*node
) == TYPE_DECL
)
3407 type
= &TREE_TYPE (*node
);
3412 if (!(type
&& RECORD_OR_UNION_TYPE_P (*type
)))
3414 warning (OPT_Wattributes
, "%qE attribute ignored",
3416 *no_add_attrs
= true;
3419 else if ((is_attribute_p ("ms_struct", name
)
3420 && lookup_attribute ("gcc_struct", TYPE_ATTRIBUTES (*type
)))
3421 || ((is_attribute_p ("gcc_struct", name
)
3422 && lookup_attribute ("ms_struct", TYPE_ATTRIBUTES (*type
)))))
3424 warning (OPT_Wattributes
, "%qE incompatible attribute ignored",
3426 *no_add_attrs
= true;
3432 /* Handle a "callee_pop_aggregate_return" attribute; arguments as
3433 in struct attribute_spec handler. */
3436 ix86_handle_callee_pop_aggregate_return (tree
*node
, tree name
, tree args
, int,
3439 if (TREE_CODE (*node
) != FUNCTION_TYPE
3440 && TREE_CODE (*node
) != METHOD_TYPE
3441 && TREE_CODE (*node
) != FIELD_DECL
3442 && TREE_CODE (*node
) != TYPE_DECL
)
3444 warning (OPT_Wattributes
, "%qE attribute only applies to functions",
3446 *no_add_attrs
= true;
3451 warning (OPT_Wattributes
, "%qE attribute only available for 32-bit",
3453 *no_add_attrs
= true;
3456 if (is_attribute_p ("callee_pop_aggregate_return", name
))
3460 cst
= TREE_VALUE (args
);
3461 if (TREE_CODE (cst
) != INTEGER_CST
)
3463 warning (OPT_Wattributes
,
3464 "%qE attribute requires an integer constant argument",
3466 *no_add_attrs
= true;
3468 else if (compare_tree_int (cst
, 0) != 0
3469 && compare_tree_int (cst
, 1) != 0)
3471 warning (OPT_Wattributes
,
3472 "argument to %qE attribute is neither zero, nor one",
3474 *no_add_attrs
= true;
3483 /* Handle a "ms_abi" or "sysv" attribute; arguments as in
3484 struct attribute_spec.handler. */
3487 ix86_handle_abi_attribute (tree
*node
, tree name
, tree
, int,
3490 if (TREE_CODE (*node
) != FUNCTION_TYPE
3491 && TREE_CODE (*node
) != METHOD_TYPE
3492 && TREE_CODE (*node
) != FIELD_DECL
3493 && TREE_CODE (*node
) != TYPE_DECL
)
3495 warning (OPT_Wattributes
, "%qE attribute only applies to functions",
3497 *no_add_attrs
= true;
3501 /* Can combine regparm with all attributes but fastcall. */
3502 if (is_attribute_p ("ms_abi", name
))
3504 if (lookup_attribute ("sysv_abi", TYPE_ATTRIBUTES (*node
)))
3506 error ("%qs and %qs attributes are not compatible",
3507 "ms_abi", "sysv_abi");
3512 else if (is_attribute_p ("sysv_abi", name
))
3514 if (lookup_attribute ("ms_abi", TYPE_ATTRIBUTES (*node
)))
3516 error ("%qs and %qs attributes are not compatible",
3517 "ms_abi", "sysv_abi");
3527 ix86_handle_fndecl_attribute (tree
*node
, tree name
, tree args
, int,
3530 if (TREE_CODE (*node
) != FUNCTION_DECL
)
3532 warning (OPT_Wattributes
, "%qE attribute only applies to functions",
3534 *no_add_attrs
= true;
3537 if (is_attribute_p ("indirect_branch", name
))
3539 tree cst
= TREE_VALUE (args
);
3540 if (TREE_CODE (cst
) != STRING_CST
)
3542 warning (OPT_Wattributes
,
3543 "%qE attribute requires a string constant argument",
3545 *no_add_attrs
= true;
3547 else if (strcmp (TREE_STRING_POINTER (cst
), "keep") != 0
3548 && strcmp (TREE_STRING_POINTER (cst
), "thunk") != 0
3549 && strcmp (TREE_STRING_POINTER (cst
), "thunk-inline") != 0
3550 && strcmp (TREE_STRING_POINTER (cst
), "thunk-extern") != 0)
3552 warning (OPT_Wattributes
,
3553 "argument to %qE attribute is not "
3554 "(keep|thunk|thunk-inline|thunk-extern)", name
);
3555 *no_add_attrs
= true;
3559 if (is_attribute_p ("function_return", name
))
3561 tree cst
= TREE_VALUE (args
);
3562 if (TREE_CODE (cst
) != STRING_CST
)
3564 warning (OPT_Wattributes
,
3565 "%qE attribute requires a string constant argument",
3567 *no_add_attrs
= true;
3569 else if (strcmp (TREE_STRING_POINTER (cst
), "keep") != 0
3570 && strcmp (TREE_STRING_POINTER (cst
), "thunk") != 0
3571 && strcmp (TREE_STRING_POINTER (cst
), "thunk-inline") != 0
3572 && strcmp (TREE_STRING_POINTER (cst
), "thunk-extern") != 0)
3574 warning (OPT_Wattributes
,
3575 "argument to %qE attribute is not "
3576 "(keep|thunk|thunk-inline|thunk-extern)", name
);
3577 *no_add_attrs
= true;
3585 ix86_handle_no_caller_saved_registers_attribute (tree
*, tree
, tree
,
3592 ix86_handle_interrupt_attribute (tree
*node
, tree
, tree
, int, bool *)
3594 /* DECL_RESULT and DECL_ARGUMENTS do not exist there yet,
3595 but the function type contains args and return type data. */
3596 tree func_type
= *node
;
3597 tree return_type
= TREE_TYPE (func_type
);
3600 tree current_arg_type
= TYPE_ARG_TYPES (func_type
);
3601 while (current_arg_type
3602 && ! VOID_TYPE_P (TREE_VALUE (current_arg_type
)))
3606 if (! POINTER_TYPE_P (TREE_VALUE (current_arg_type
)))
3607 error ("interrupt service routine should have a pointer "
3608 "as the first argument");
3610 else if (nargs
== 1)
3612 if (TREE_CODE (TREE_VALUE (current_arg_type
)) != INTEGER_TYPE
3613 || TYPE_MODE (TREE_VALUE (current_arg_type
)) != word_mode
)
3614 error ("interrupt service routine should have %qs "
3615 "as the second argument",
3617 ? (TARGET_X32
? "unsigned long long int"
3618 : "unsigned long int")
3622 current_arg_type
= TREE_CHAIN (current_arg_type
);
3624 if (!nargs
|| nargs
> 2)
3625 error ("interrupt service routine can only have a pointer argument "
3626 "and an optional integer argument");
3627 if (! VOID_TYPE_P (return_type
))
3628 error ("interrupt service routine must return %<void%>");
3633 /* Handle fentry_name / fentry_section attribute. */
3636 ix86_handle_fentry_name (tree
*node
, tree name
, tree args
,
3637 int, bool *no_add_attrs
)
3639 if (TREE_CODE (*node
) == FUNCTION_DECL
3640 && TREE_CODE (TREE_VALUE (args
)) == STRING_CST
)
3641 /* Do nothing else, just set the attribute. We'll get at
3642 it later with lookup_attribute. */
3646 warning (OPT_Wattributes
, "%qE attribute ignored", name
);
3647 *no_add_attrs
= true;
3653 /* Table of valid machine attributes. */
3654 const struct attribute_spec ix86_attribute_table
[] =
3656 /* { name, min_len, max_len, decl_req, type_req, fn_type_req,
3657 affects_type_identity, handler, exclude } */
3658 /* Stdcall attribute says callee is responsible for popping arguments
3659 if they are not variable. */
3660 { "stdcall", 0, 0, false, true, true, true, ix86_handle_cconv_attribute
,
3662 /* Fastcall attribute says callee is responsible for popping arguments
3663 if they are not variable. */
3664 { "fastcall", 0, 0, false, true, true, true, ix86_handle_cconv_attribute
,
3666 /* Thiscall attribute says callee is responsible for popping arguments
3667 if they are not variable. */
3668 { "thiscall", 0, 0, false, true, true, true, ix86_handle_cconv_attribute
,
3670 /* Cdecl attribute says the callee is a normal C declaration */
3671 { "cdecl", 0, 0, false, true, true, true, ix86_handle_cconv_attribute
,
3673 /* Regparm attribute specifies how many integer arguments are to be
3674 passed in registers. */
3675 { "regparm", 1, 1, false, true, true, true, ix86_handle_cconv_attribute
,
3677 /* Sseregparm attribute says we are using x86_64 calling conventions
3678 for FP arguments. */
3679 { "sseregparm", 0, 0, false, true, true, true, ix86_handle_cconv_attribute
,
3681 /* The transactional memory builtins are implicitly regparm or fastcall
3682 depending on the ABI. Override the generic do-nothing attribute that
3683 these builtins were declared with. */
3684 { "*tm regparm", 0, 0, false, true, true, true,
3685 ix86_handle_tm_regparm_attribute
, NULL
},
3686 /* force_align_arg_pointer says this function realigns the stack at entry. */
3687 { "force_align_arg_pointer", 0, 0,
3688 false, true, true, false, ix86_handle_force_align_arg_pointer_attribute
,
3690 #if TARGET_DLLIMPORT_DECL_ATTRIBUTES
3691 { "dllimport", 0, 0, false, false, false, false, handle_dll_attribute
,
3693 { "dllexport", 0, 0, false, false, false, false, handle_dll_attribute
,
3695 { "shared", 0, 0, true, false, false, false,
3696 ix86_handle_shared_attribute
, NULL
},
3698 { "ms_struct", 0, 0, false, false, false, false,
3699 ix86_handle_struct_attribute
, NULL
},
3700 { "gcc_struct", 0, 0, false, false, false, false,
3701 ix86_handle_struct_attribute
, NULL
},
3702 #ifdef SUBTARGET_ATTRIBUTE_TABLE
3703 SUBTARGET_ATTRIBUTE_TABLE
,
3705 /* ms_abi and sysv_abi calling convention function attributes. */
3706 { "ms_abi", 0, 0, false, true, true, true, ix86_handle_abi_attribute
, NULL
},
3707 { "sysv_abi", 0, 0, false, true, true, true, ix86_handle_abi_attribute
,
3709 { "ms_abi va_list", 0, 0, false, false, false, false, NULL
, NULL
},
3710 { "sysv_abi va_list", 0, 0, false, false, false, false, NULL
, NULL
},
3711 { "ms_hook_prologue", 0, 0, true, false, false, false,
3712 ix86_handle_fndecl_attribute
, NULL
},
3713 { "callee_pop_aggregate_return", 1, 1, false, true, true, true,
3714 ix86_handle_callee_pop_aggregate_return
, NULL
},
3715 { "interrupt", 0, 0, false, true, true, false,
3716 ix86_handle_interrupt_attribute
, NULL
},
3717 { "no_caller_saved_registers", 0, 0, false, true, true, false,
3718 ix86_handle_no_caller_saved_registers_attribute
, NULL
},
3719 { "naked", 0, 0, true, false, false, false,
3720 ix86_handle_fndecl_attribute
, NULL
},
3721 { "indirect_branch", 1, 1, true, false, false, false,
3722 ix86_handle_fndecl_attribute
, NULL
},
3723 { "function_return", 1, 1, true, false, false, false,
3724 ix86_handle_fndecl_attribute
, NULL
},
3725 { "indirect_return", 0, 0, false, true, true, false,
3727 { "fentry_name", 1, 1, true, false, false, false,
3728 ix86_handle_fentry_name
, NULL
},
3729 { "fentry_section", 1, 1, true, false, false, false,
3730 ix86_handle_fentry_name
, NULL
},
3731 { "cf_check", 0, 0, true, false, false, false,
3732 ix86_handle_fndecl_attribute
, NULL
},
3735 { NULL
, 0, 0, false, false, false, false, NULL
, NULL
}
3738 #include "gt-i386-options.h"