gcc/config/i386/i386-c.c

   1 /* Subroutines used for macro/preprocessor support on the ia-32.
   2    Copyright (C) 2008-2018 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 any later version.
  10
  11 GCC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 #define IN_TARGET_CODE 1
  21
  22 #include "config.h"
  23 #include "system.h"
  24 #include "coretypes.h"
  25 #include "target.h"
  26 #include "c-family/c-common.h"
  27 #include "memmodel.h"
  28 #include "tm_p.h"
  29 #include "c-family/c-pragma.h"
  30
  31 static bool ix86_pragma_target_parse (tree, tree);
  32 static void ix86_target_macros_internal
  33   (HOST_WIDE_INT, HOST_WIDE_INT, enum processor_type, enum processor_type, enum fpmath_unit,
  34    void (*def_or_undef) (cpp_reader *, const char *));
  35
  36 /* Internal function to either define or undef the appropriate system
  37    macros.  */
  38 static void
  39 ix86_target_macros_internal (HOST_WIDE_INT isa_flag,
  40                              HOST_WIDE_INT isa_flag2,
  41                              enum processor_type arch,
  42                              enum processor_type tune,
  43                              enum fpmath_unit fpmath,
  44                              void (*def_or_undef) (cpp_reader *,
  45                                                    const char *))
  46 {
  47   /* For some of the k6/pentium varients there weren't separate ISA bits to
  48      identify which tune/arch flag was passed, so figure it out here.  */
  49   size_t arch_len = strlen (ix86_arch_string);
  50   size_t tune_len = strlen (ix86_tune_string);
  51   int last_arch_char = ix86_arch_string[arch_len - 1];
  52   int last_tune_char = ix86_tune_string[tune_len - 1];
  53
  54   /* Built-ins based on -march=.  */
  55   switch (arch)
  56     {
  57     case PROCESSOR_I386:
  58       break;
  59     case PROCESSOR_I486:
  60       def_or_undef (parse_in, "__i486");
  61       def_or_undef (parse_in, "__i486__");
  62       break;
  63     case PROCESSOR_LAKEMONT:
  64       /* Intel MCU is based on Intel Pentium CPU.  */
  65     case PROCESSOR_PENTIUM:
  66       def_or_undef (parse_in, "__i586");
  67       def_or_undef (parse_in, "__i586__");
  68       def_or_undef (parse_in, "__pentium");
  69       def_or_undef (parse_in, "__pentium__");
  70       if (isa_flag & OPTION_MASK_ISA_MMX)
  71         def_or_undef (parse_in, "__pentium_mmx__");
  72       break;
  73     case PROCESSOR_PENTIUMPRO:
  74       def_or_undef (parse_in, "__i686");
  75       def_or_undef (parse_in, "__i686__");
  76       def_or_undef (parse_in, "__pentiumpro");
  77       def_or_undef (parse_in, "__pentiumpro__");
  78       break;
  79     case PROCESSOR_GEODE:
  80       def_or_undef (parse_in, "__geode");
  81       def_or_undef (parse_in, "__geode__");
  82       break;
  83     case PROCESSOR_K6:
  84       def_or_undef (parse_in, "__k6");
  85       def_or_undef (parse_in, "__k6__");
  86       if (last_arch_char == '2')
  87         def_or_undef (parse_in, "__k6_2__");
  88       else if (last_arch_char == '3')
  89         def_or_undef (parse_in, "__k6_3__");
  90       else if (isa_flag & OPTION_MASK_ISA_3DNOW)
  91         def_or_undef (parse_in, "__k6_3__");
  92       break;
  93     case PROCESSOR_ATHLON:
  94       def_or_undef (parse_in, "__athlon");
  95       def_or_undef (parse_in, "__athlon__");
  96       if (isa_flag & OPTION_MASK_ISA_SSE)
  97         def_or_undef (parse_in, "__athlon_sse__");
  98       break;
  99     case PROCESSOR_K8:
 100       def_or_undef (parse_in, "__k8");
 101       def_or_undef (parse_in, "__k8__");
 102       break;
 103     case PROCESSOR_AMDFAM10:
 104       def_or_undef (parse_in, "__amdfam10");
 105       def_or_undef (parse_in, "__amdfam10__");
 106       break;
 107     case PROCESSOR_BDVER1:
 108       def_or_undef (parse_in, "__bdver1");
 109       def_or_undef (parse_in, "__bdver1__");
 110       break;
 111     case PROCESSOR_BDVER2:
 112       def_or_undef (parse_in, "__bdver2");
 113       def_or_undef (parse_in, "__bdver2__");
 114       break;
 115     case PROCESSOR_BDVER3:
 116       def_or_undef (parse_in, "__bdver3");
 117       def_or_undef (parse_in, "__bdver3__");
 118       break;
 119     case PROCESSOR_BDVER4:
 120       def_or_undef (parse_in, "__bdver4");
 121       def_or_undef (parse_in, "__bdver4__");
 122       break;
 123     case PROCESSOR_ZNVER1:
 124       def_or_undef (parse_in, "__znver1");
 125       def_or_undef (parse_in, "__znver1__");
 126       break;
 127     case PROCESSOR_ZNVER2:
 128       def_or_undef (parse_in, "__znver2");
 129       def_or_undef (parse_in, "__znver2__");
 130       break;
 131     case PROCESSOR_BTVER1:
 132       def_or_undef (parse_in, "__btver1");
 133       def_or_undef (parse_in, "__btver1__");
 134       break;
 135     case PROCESSOR_BTVER2:
 136       def_or_undef (parse_in, "__btver2");
 137       def_or_undef (parse_in, "__btver2__");
 138       break;
 139     case PROCESSOR_PENTIUM4:
 140       def_or_undef (parse_in, "__pentium4");
 141       def_or_undef (parse_in, "__pentium4__");
 142       break;
 143     case PROCESSOR_NOCONA:
 144       def_or_undef (parse_in, "__nocona");
 145       def_or_undef (parse_in, "__nocona__");
 146       break;
 147     case PROCESSOR_CORE2:
 148       def_or_undef (parse_in, "__core2");
 149       def_or_undef (parse_in, "__core2__");
 150       break;
 151     case PROCESSOR_NEHALEM:
 152       def_or_undef (parse_in, "__corei7");
 153       def_or_undef (parse_in, "__corei7__");
 154       def_or_undef (parse_in, "__nehalem");
 155       def_or_undef (parse_in, "__nehalem__");
 156       break;
 157     case PROCESSOR_SANDYBRIDGE:
 158       def_or_undef (parse_in, "__corei7_avx");
 159       def_or_undef (parse_in, "__corei7_avx__");
 160       def_or_undef (parse_in, "__sandybridge");
 161       def_or_undef (parse_in, "__sandybridge__");
 162       break;
 163     case PROCESSOR_HASWELL:
 164       def_or_undef (parse_in, "__core_avx2");
 165       def_or_undef (parse_in, "__core_avx2__");
 166       def_or_undef (parse_in, "__haswell");
 167       def_or_undef (parse_in, "__haswell__");
 168       break;
 169     case PROCESSOR_BONNELL:
 170       def_or_undef (parse_in, "__atom");
 171       def_or_undef (parse_in, "__atom__");
 172       def_or_undef (parse_in, "__bonnell");
 173       def_or_undef (parse_in, "__bonnell__");
 174       break;
 175     case PROCESSOR_SILVERMONT:
 176       def_or_undef (parse_in, "__slm");
 177       def_or_undef (parse_in, "__slm__");
 178       def_or_undef (parse_in, "__silvermont");
 179       def_or_undef (parse_in, "__silvermont__");
 180       break;
 181     case PROCESSOR_GOLDMONT:
 182       def_or_undef (parse_in, "__goldmont");
 183       def_or_undef (parse_in, "__goldmont__");
 184       break;
 185     case PROCESSOR_GOLDMONT_PLUS:
 186       def_or_undef (parse_in, "__goldmont_plus");
 187       def_or_undef (parse_in, "__goldmont_plus__");
 188       break;
 189     case PROCESSOR_TREMONT:
 190       def_or_undef (parse_in, "__tremont");
 191       def_or_undef (parse_in, "__tremont__");
 192       break;
 193     case PROCESSOR_KNL:
 194       def_or_undef (parse_in, "__knl");
 195       def_or_undef (parse_in, "__knl__");
 196       break;
 197     case PROCESSOR_KNM:
 198       def_or_undef (parse_in, "__knm");
 199       def_or_undef (parse_in, "__knm__");
 200       break;
 201     case PROCESSOR_SKYLAKE:
 202       def_or_undef (parse_in, "__skylake");
 203       def_or_undef (parse_in, "__skylake__");
 204       break;
 205     case PROCESSOR_SKYLAKE_AVX512:
 206       def_or_undef (parse_in, "__skylake_avx512");
 207       def_or_undef (parse_in, "__skylake_avx512__");
 208       break;
 209     case PROCESSOR_CANNONLAKE:
 210       def_or_undef (parse_in, "__cannonlake");
 211       def_or_undef (parse_in, "__cannonlake__");
 212       break;
 213     case PROCESSOR_ICELAKE_CLIENT:
 214       def_or_undef (parse_in, "__icelake_client");
 215       def_or_undef (parse_in, "__icelake_client__");
 216       break;
 217     case PROCESSOR_ICELAKE_SERVER:
 218       def_or_undef (parse_in, "__icelake_server");
 219       def_or_undef (parse_in, "__icelake_server__");
 220       break;
 221     /* use PROCESSOR_max to not set/unset the arch macro.  */
 222     case PROCESSOR_max:
 223       break;
 224     case PROCESSOR_INTEL:
 225     case PROCESSOR_GENERIC:
 226       gcc_unreachable ();
 227     }
 228
 229   /* Built-ins based on -mtune=.  */
 230   switch (tune)
 231     {
 232     case PROCESSOR_I386:
 233       def_or_undef (parse_in, "__tune_i386__");
 234       break;
 235     case PROCESSOR_I486:
 236       def_or_undef (parse_in, "__tune_i486__");
 237       break;
 238     case PROCESSOR_PENTIUM:
 239       def_or_undef (parse_in, "__tune_i586__");
 240       def_or_undef (parse_in, "__tune_pentium__");
 241       if (last_tune_char == 'x')
 242         def_or_undef (parse_in, "__tune_pentium_mmx__");
 243       break;
 244     case PROCESSOR_PENTIUMPRO:
 245       def_or_undef (parse_in, "__tune_i686__");
 246       def_or_undef (parse_in, "__tune_pentiumpro__");
 247       switch (last_tune_char)
 248         {
 249         case '3':
 250           def_or_undef (parse_in, "__tune_pentium3__");
 251           /* FALLTHRU */
 252         case '2':
 253           def_or_undef (parse_in, "__tune_pentium2__");
 254           break;
 255         }
 256       break;
 257     case PROCESSOR_GEODE:
 258       def_or_undef (parse_in, "__tune_geode__");
 259       break;
 260     case PROCESSOR_K6:
 261       def_or_undef (parse_in, "__tune_k6__");
 262       if (last_tune_char == '2')
 263         def_or_undef (parse_in, "__tune_k6_2__");
 264       else if (last_tune_char == '3')
 265         def_or_undef (parse_in, "__tune_k6_3__");
 266       else if (isa_flag & OPTION_MASK_ISA_3DNOW)
 267         def_or_undef (parse_in, "__tune_k6_3__");
 268       break;
 269     case PROCESSOR_ATHLON:
 270       def_or_undef (parse_in, "__tune_athlon__");
 271       if (isa_flag & OPTION_MASK_ISA_SSE)
 272         def_or_undef (parse_in, "__tune_athlon_sse__");
 273       break;
 274     case PROCESSOR_K8:
 275       def_or_undef (parse_in, "__tune_k8__");
 276       break;
 277     case PROCESSOR_AMDFAM10:
 278       def_or_undef (parse_in, "__tune_amdfam10__");
 279       break;
 280     case PROCESSOR_BDVER1:
 281       def_or_undef (parse_in, "__tune_bdver1__");
 282       break;
 283     case PROCESSOR_BDVER2:
 284       def_or_undef (parse_in, "__tune_bdver2__");
 285       break;
 286     case PROCESSOR_BDVER3:
 287       def_or_undef (parse_in, "__tune_bdver3__");
 288       break;
 289     case PROCESSOR_BDVER4:
 290       def_or_undef (parse_in, "__tune_bdver4__");
 291       break;
 292     case PROCESSOR_ZNVER1:
 293       def_or_undef (parse_in, "__tune_znver1__");
 294       break;
 295     case PROCESSOR_ZNVER2:
 296       def_or_undef (parse_in, "__tune_znver2__");
 297       break;
 298     case PROCESSOR_BTVER1:
 299       def_or_undef (parse_in, "__tune_btver1__");
 300       break;
 301     case PROCESSOR_BTVER2:
 302       def_or_undef (parse_in, "__tune_btver2__");
 303        break;
 304     case PROCESSOR_PENTIUM4:
 305       def_or_undef (parse_in, "__tune_pentium4__");
 306       break;
 307     case PROCESSOR_NOCONA:
 308       def_or_undef (parse_in, "__tune_nocona__");
 309       break;
 310     case PROCESSOR_CORE2:
 311       def_or_undef (parse_in, "__tune_core2__");
 312       break;
 313     case PROCESSOR_NEHALEM:
 314       def_or_undef (parse_in, "__tune_corei7__");
 315       def_or_undef (parse_in, "__tune_nehalem__");
 316       break;
 317     case PROCESSOR_SANDYBRIDGE:
 318       def_or_undef (parse_in, "__tune_corei7_avx__");
 319       def_or_undef (parse_in, "__tune_sandybridge__");
 320       break;
 321     case PROCESSOR_HASWELL:
 322       def_or_undef (parse_in, "__tune_core_avx2__");
 323       def_or_undef (parse_in, "__tune_haswell__");
 324       break;
 325     case PROCESSOR_BONNELL:
 326       def_or_undef (parse_in, "__tune_atom__");
 327       def_or_undef (parse_in, "__tune_bonnell__");
 328       break;
 329     case PROCESSOR_SILVERMONT:
 330       def_or_undef (parse_in, "__tune_slm__");
 331       def_or_undef (parse_in, "__tune_silvermont__");
 332       break;
 333     case PROCESSOR_GOLDMONT:
 334       def_or_undef (parse_in, "__tune_goldmont__");
 335       break;
 336     case PROCESSOR_GOLDMONT_PLUS:
 337       def_or_undef (parse_in, "__tune_goldmont_plus__");
 338       break;
 339     case PROCESSOR_TREMONT:
 340       def_or_undef (parse_in, "__tune_tremont__");
 341       break;
 342     case PROCESSOR_KNL:
 343       def_or_undef (parse_in, "__tune_knl__");
 344       break;
 345     case PROCESSOR_KNM:
 346       def_or_undef (parse_in, "__tune_knm__");
 347       break;
 348     case PROCESSOR_SKYLAKE:
 349       def_or_undef (parse_in, "__tune_skylake__");
 350       break;
 351     case PROCESSOR_SKYLAKE_AVX512:
 352       def_or_undef (parse_in, "__tune_skylake_avx512__");
 353       break;
 354     case PROCESSOR_CANNONLAKE:
 355       def_or_undef (parse_in, "__tune_cannonlake__");
 356       break;
 357     case PROCESSOR_ICELAKE_CLIENT:
 358       def_or_undef (parse_in, "__tune_icelake_client__");
 359       break;
 360     case PROCESSOR_ICELAKE_SERVER:
 361       def_or_undef (parse_in, "__tune_icelake_server__");
 362       break;
 363     case PROCESSOR_LAKEMONT:
 364       def_or_undef (parse_in, "__tune_lakemont__");
 365       break;
 366     case PROCESSOR_INTEL:
 367     case PROCESSOR_GENERIC:
 368       break;
 369     /* use PROCESSOR_max to not set/unset the tune macro.  */
 370     case PROCESSOR_max:
 371       break;
 372     }
 373
 374   switch (ix86_cmodel)
 375     {
 376     case CM_SMALL:
 377     case CM_SMALL_PIC:
 378       def_or_undef (parse_in, "__code_model_small__");
 379       break;
 380     case CM_MEDIUM:
 381     case CM_MEDIUM_PIC:
 382       def_or_undef (parse_in, "__code_model_medium__");
 383       break;
 384     case CM_LARGE:
 385     case CM_LARGE_PIC:
 386       def_or_undef (parse_in, "__code_model_large__");
 387       break;
 388     case CM_32:
 389       def_or_undef (parse_in, "__code_model_32__");
 390       break;
 391     case CM_KERNEL:
 392       def_or_undef (parse_in, "__code_model_kernel__");
 393       break;
 394     default:
 395       ;
 396     }
 397
 398   if (isa_flag2 & OPTION_MASK_ISA_WBNOINVD)
 399     def_or_undef (parse_in, "__WBNOINVD__");
 400   if (isa_flag & OPTION_MASK_ISA_MMX)
 401     def_or_undef (parse_in, "__MMX__");
 402   if (isa_flag & OPTION_MASK_ISA_3DNOW)
 403     def_or_undef (parse_in, "__3dNOW__");
 404   if (isa_flag & OPTION_MASK_ISA_3DNOW_A)
 405     def_or_undef (parse_in, "__3dNOW_A__");
 406   if (isa_flag & OPTION_MASK_ISA_SSE)
 407     def_or_undef (parse_in, "__SSE__");
 408   if (isa_flag & OPTION_MASK_ISA_SSE2)
 409     def_or_undef (parse_in, "__SSE2__");
 410   if (isa_flag & OPTION_MASK_ISA_SSE3)
 411     def_or_undef (parse_in, "__SSE3__");
 412   if (isa_flag & OPTION_MASK_ISA_SSSE3)
 413     def_or_undef (parse_in, "__SSSE3__");
 414   if (isa_flag & OPTION_MASK_ISA_SSE4_1)
 415     def_or_undef (parse_in, "__SSE4_1__");
 416   if (isa_flag & OPTION_MASK_ISA_SSE4_2)
 417     def_or_undef (parse_in, "__SSE4_2__");
 418   if (isa_flag & OPTION_MASK_ISA_AES)
 419     def_or_undef (parse_in, "__AES__");
 420   if (isa_flag & OPTION_MASK_ISA_SHA)
 421     def_or_undef (parse_in, "__SHA__");
 422   if (isa_flag & OPTION_MASK_ISA_PCLMUL)
 423     def_or_undef (parse_in, "__PCLMUL__");
 424   if (isa_flag & OPTION_MASK_ISA_AVX)
 425     def_or_undef (parse_in, "__AVX__");
 426   if (isa_flag & OPTION_MASK_ISA_AVX2)
 427     def_or_undef (parse_in, "__AVX2__");
 428   if (isa_flag & OPTION_MASK_ISA_AVX512F)
 429     def_or_undef (parse_in, "__AVX512F__");
 430   if (isa_flag & OPTION_MASK_ISA_AVX512ER)
 431     def_or_undef (parse_in, "__AVX512ER__");
 432   if (isa_flag & OPTION_MASK_ISA_AVX512CD)
 433     def_or_undef (parse_in, "__AVX512CD__");
 434   if (isa_flag & OPTION_MASK_ISA_AVX512PF)
 435     def_or_undef (parse_in, "__AVX512PF__");
 436   if (isa_flag & OPTION_MASK_ISA_AVX512DQ)
 437     def_or_undef (parse_in, "__AVX512DQ__");
 438   if (isa_flag & OPTION_MASK_ISA_AVX512BW)
 439     def_or_undef (parse_in, "__AVX512BW__");
 440   if (isa_flag & OPTION_MASK_ISA_AVX512VL)
 441     def_or_undef (parse_in, "__AVX512VL__");
 442   if (isa_flag & OPTION_MASK_ISA_AVX512VBMI)
 443     def_or_undef (parse_in, "__AVX512VBMI__");
 444   if (isa_flag & OPTION_MASK_ISA_AVX512IFMA)
 445     def_or_undef (parse_in, "__AVX512IFMA__");
 446   if (isa_flag2 & OPTION_MASK_ISA_AVX5124VNNIW)
 447     def_or_undef (parse_in, "__AVX5124VNNIW__");
 448   if (isa_flag & OPTION_MASK_ISA_AVX512VBMI2)
 449     def_or_undef (parse_in, "__AVX512VBMI2__");
 450   if (isa_flag & OPTION_MASK_ISA_AVX512VNNI)
 451     def_or_undef (parse_in, "__AVX512VNNI__");
 452   if (isa_flag2 & OPTION_MASK_ISA_PCONFIG)
 453     def_or_undef (parse_in, "__PCONFIG__");
 454   if (isa_flag2 & OPTION_MASK_ISA_SGX)
 455     def_or_undef (parse_in, "__SGX__");
 456   if (isa_flag2 & OPTION_MASK_ISA_AVX5124FMAPS)
 457     def_or_undef (parse_in, "__AVX5124FMAPS__");
 458   if (isa_flag & OPTION_MASK_ISA_AVX512BITALG)
 459     def_or_undef (parse_in, "__AVX512BITALG__");
 460   if (isa_flag & OPTION_MASK_ISA_AVX512VPOPCNTDQ)
 461     def_or_undef (parse_in, "__AVX512VPOPCNTDQ__");
 462   if (isa_flag & OPTION_MASK_ISA_FMA)
 463     def_or_undef (parse_in, "__FMA__");
 464   if (isa_flag & OPTION_MASK_ISA_RTM)
 465     def_or_undef (parse_in, "__RTM__");
 466   if (isa_flag & OPTION_MASK_ISA_SSE4A)
 467     def_or_undef (parse_in, "__SSE4A__");
 468   if (isa_flag & OPTION_MASK_ISA_FMA4)
 469     def_or_undef (parse_in, "__FMA4__");
 470   if (isa_flag & OPTION_MASK_ISA_XOP)
 471     def_or_undef (parse_in, "__XOP__");
 472   if (isa_flag & OPTION_MASK_ISA_LWP)
 473     def_or_undef (parse_in, "__LWP__");
 474   if (isa_flag & OPTION_MASK_ISA_ABM)
 475     def_or_undef (parse_in, "__ABM__");
 476   if (isa_flag & OPTION_MASK_ISA_BMI)
 477     def_or_undef (parse_in, "__BMI__");
 478   if (isa_flag & OPTION_MASK_ISA_BMI2)
 479     def_or_undef (parse_in, "__BMI2__");
 480   if (isa_flag & OPTION_MASK_ISA_LZCNT)
 481     def_or_undef (parse_in, "__LZCNT__");
 482   if (isa_flag & OPTION_MASK_ISA_TBM)
 483     def_or_undef (parse_in, "__TBM__");
 484   if (isa_flag & OPTION_MASK_ISA_POPCNT)
 485     def_or_undef (parse_in, "__POPCNT__");
 486   if (isa_flag & OPTION_MASK_ISA_FSGSBASE)
 487     def_or_undef (parse_in, "__FSGSBASE__");
 488   if (isa_flag & OPTION_MASK_ISA_RDRND)
 489     def_or_undef (parse_in, "__RDRND__");
 490   if (isa_flag & OPTION_MASK_ISA_F16C)
 491     def_or_undef (parse_in, "__F16C__");
 492   if (isa_flag & OPTION_MASK_ISA_RDSEED)
 493     def_or_undef (parse_in, "__RDSEED__");
 494   if (isa_flag & OPTION_MASK_ISA_PRFCHW)
 495     def_or_undef (parse_in, "__PRFCHW__");
 496   if (isa_flag & OPTION_MASK_ISA_ADX)
 497     def_or_undef (parse_in, "__ADX__");
 498   if (isa_flag & OPTION_MASK_ISA_FXSR)
 499     def_or_undef (parse_in, "__FXSR__");
 500   if (isa_flag & OPTION_MASK_ISA_XSAVE)
 501     def_or_undef (parse_in, "__XSAVE__");
 502   if (isa_flag & OPTION_MASK_ISA_XSAVEOPT)
 503     def_or_undef (parse_in, "__XSAVEOPT__");
 504   if (isa_flag & OPTION_MASK_ISA_PREFETCHWT1)
 505     def_or_undef (parse_in, "__PREFETCHWT1__");
 506   if ((fpmath & FPMATH_SSE) && (isa_flag & OPTION_MASK_ISA_SSE))
 507     def_or_undef (parse_in, "__SSE_MATH__");
 508   if ((fpmath & FPMATH_SSE) && (isa_flag & OPTION_MASK_ISA_SSE2))
 509     def_or_undef (parse_in, "__SSE2_MATH__");
 510   if (isa_flag & OPTION_MASK_ISA_CLFLUSHOPT)
 511     def_or_undef (parse_in, "__CLFLUSHOPT__");
 512   if (isa_flag2 & OPTION_MASK_ISA_CLZERO)
 513     def_or_undef (parse_in, "__CLZERO__");
 514   if (isa_flag & OPTION_MASK_ISA_XSAVEC)
 515     def_or_undef (parse_in, "__XSAVEC__");
 516   if (isa_flag & OPTION_MASK_ISA_XSAVES)
 517     def_or_undef (parse_in, "__XSAVES__");
 518   if (isa_flag & OPTION_MASK_ISA_CLWB)
 519     def_or_undef (parse_in, "__CLWB__");
 520   if (isa_flag2 & OPTION_MASK_ISA_MWAITX)
 521     def_or_undef (parse_in, "__MWAITX__");
 522   if (isa_flag & OPTION_MASK_ISA_PKU)
 523     def_or_undef (parse_in, "__PKU__");
 524   if (isa_flag2 & OPTION_MASK_ISA_RDPID)
 525     def_or_undef (parse_in, "__RDPID__");
 526   if (isa_flag & OPTION_MASK_ISA_GFNI)
 527     def_or_undef (parse_in, "__GFNI__");
 528   if ((isa_flag & OPTION_MASK_ISA_SHSTK))
 529     def_or_undef (parse_in, "__SHSTK__");
 530   if (isa_flag2 & OPTION_MASK_ISA_VAES)
 531     def_or_undef (parse_in, "__VAES__");
 532   if (isa_flag & OPTION_MASK_ISA_VPCLMULQDQ)
 533     def_or_undef (parse_in, "__VPCLMULQDQ__");
 534   if (isa_flag & OPTION_MASK_ISA_MOVDIRI)
 535     def_or_undef (parse_in, "__MOVDIRI__");
 536   if (isa_flag2 & OPTION_MASK_ISA_MOVDIR64B)
 537     def_or_undef (parse_in, "__MOVDIR64B__");
 538   if (isa_flag2 & OPTION_MASK_ISA_WAITPKG)
 539     def_or_undef (parse_in, "__WAITPKG__");
 540   if (isa_flag2 & OPTION_MASK_ISA_CLDEMOTE)
 541     def_or_undef (parse_in, "__CLDEMOTE__");
 542   if (isa_flag2 & OPTION_MASK_ISA_PTWRITE)
 543     def_or_undef (parse_in, "__PTWRITE__");
 544   if (TARGET_IAMCU)
 545     {
 546       def_or_undef (parse_in, "__iamcu");
 547       def_or_undef (parse_in, "__iamcu__");
 548     }
 549 }
 550
 551 \f
 552 /* Hook to validate the current #pragma GCC target and set the state, and
 553    update the macros based on what was changed.  If ARGS is NULL, then
 554    POP_TARGET is used to reset the options.  */
 555
 556 static bool
 557 ix86_pragma_target_parse (tree args, tree pop_target)
 558 {
 559   tree prev_tree = build_target_option_node (&global_options);
 560   tree cur_tree;
 561   struct cl_target_option *prev_opt;
 562   struct cl_target_option *cur_opt;
 563   HOST_WIDE_INT prev_isa;
 564   HOST_WIDE_INT cur_isa;
 565   HOST_WIDE_INT diff_isa;
 566   HOST_WIDE_INT prev_isa2;
 567   HOST_WIDE_INT cur_isa2;
 568   HOST_WIDE_INT diff_isa2;
 569   enum processor_type prev_arch;
 570   enum processor_type prev_tune;
 571   enum processor_type cur_arch;
 572   enum processor_type cur_tune;
 573
 574   if (! args)
 575     {
 576       cur_tree = (pop_target ? pop_target : target_option_default_node);
 577       cl_target_option_restore (&global_options,
 578                                 TREE_TARGET_OPTION (cur_tree));
 579     }
 580   else
 581     {
 582       cur_tree = ix86_valid_target_attribute_tree (args, &global_options,
 583                                                    &global_options_set);
 584       if (!cur_tree || cur_tree == error_mark_node)
 585        {
 586          cl_target_option_restore (&global_options,
 587                                    TREE_TARGET_OPTION (prev_tree));
 588          return false;
 589        }
 590     }
 591
 592   target_option_current_node = cur_tree;
 593   ix86_reset_previous_fndecl ();
 594
 595   /* Figure out the previous/current isa, arch, tune and the differences.  */
 596   prev_opt  = TREE_TARGET_OPTION (prev_tree);
 597   cur_opt   = TREE_TARGET_OPTION (cur_tree);
 598   prev_isa  = prev_opt->x_ix86_isa_flags;
 599   cur_isa   = cur_opt->x_ix86_isa_flags;
 600   diff_isa  = (prev_isa ^ cur_isa);
 601   prev_isa2  = prev_opt->x_ix86_isa_flags2;
 602   cur_isa2   = cur_opt->x_ix86_isa_flags2;
 603   diff_isa2  = (prev_isa2 ^ cur_isa2);
 604   prev_arch = (enum processor_type) prev_opt->arch;
 605   prev_tune = (enum processor_type) prev_opt->tune;
 606   cur_arch  = (enum processor_type) cur_opt->arch;
 607   cur_tune  = (enum processor_type) cur_opt->tune;
 608
 609   /* If the same processor is used for both previous and current options, don't
 610      change the macros.  */
 611   if (cur_arch == prev_arch)
 612     cur_arch = prev_arch = PROCESSOR_max;
 613
 614   if (cur_tune == prev_tune)
 615     cur_tune = prev_tune = PROCESSOR_max;
 616
 617   /* Undef all of the macros for that are no longer current.  */
 618   ix86_target_macros_internal (prev_isa & diff_isa,
 619                                prev_isa2 & diff_isa2,
 620                                prev_arch,
 621                                prev_tune,
 622                                (enum fpmath_unit) prev_opt->x_ix86_fpmath,
 623                                cpp_undef);
 624
 625   /* For the definitions, ensure all newly defined macros are considered
 626      as used for -Wunused-macros.  There is no point warning about the
 627      compiler predefined macros.  */
 628   cpp_options *cpp_opts = cpp_get_options (parse_in);
 629   unsigned char saved_warn_unused_macros = cpp_opts->warn_unused_macros;
 630   cpp_opts->warn_unused_macros = 0;
 631
 632   /* Define all of the macros for new options that were just turned on.  */
 633   ix86_target_macros_internal (cur_isa & diff_isa,
 634                                cur_isa2 & diff_isa2,
 635                                cur_arch,
 636                                cur_tune,
 637                                (enum fpmath_unit) cur_opt->x_ix86_fpmath,
 638                                cpp_define);
 639
 640   cpp_opts->warn_unused_macros = saved_warn_unused_macros;
 641
 642   return true;
 643 }
 644 \f
 645 /* Function to tell the preprocessor about the defines for the current target.  */
 646
 647 void
 648 ix86_target_macros (void)
 649 {
 650   /* 32/64-bit won't change with target specific options, so do the assert and
 651      builtin_define_std calls here.  */
 652   if (TARGET_64BIT)
 653     {
 654       cpp_assert (parse_in, "cpu=x86_64");
 655       cpp_assert (parse_in, "machine=x86_64");
 656       cpp_define (parse_in, "__amd64");
 657       cpp_define (parse_in, "__amd64__");
 658       cpp_define (parse_in, "__x86_64");
 659       cpp_define (parse_in, "__x86_64__");
 660       if (TARGET_X32)
 661         {
 662           cpp_define (parse_in, "_ILP32");
 663           cpp_define (parse_in, "__ILP32__");
 664         }
 665     }
 666   else
 667     {
 668       cpp_assert (parse_in, "cpu=i386");
 669       cpp_assert (parse_in, "machine=i386");
 670       builtin_define_std ("i386");
 671     }
 672
 673   if (!TARGET_80387)
 674     cpp_define (parse_in, "_SOFT_FLOAT");
 675
 676   if (TARGET_LONG_DOUBLE_64)
 677     cpp_define (parse_in, "__LONG_DOUBLE_64__");
 678
 679   if (TARGET_LONG_DOUBLE_128)
 680     cpp_define (parse_in, "__LONG_DOUBLE_128__");
 681
 682   if (TARGET_128BIT_LONG_DOUBLE)
 683     cpp_define (parse_in, "__SIZEOF_FLOAT80__=16");
 684   else
 685     cpp_define (parse_in, "__SIZEOF_FLOAT80__=12");
 686
 687   cpp_define (parse_in, "__SIZEOF_FLOAT128__=16");
 688
 689   cpp_define_formatted (parse_in, "__ATOMIC_HLE_ACQUIRE=%d", IX86_HLE_ACQUIRE);
 690   cpp_define_formatted (parse_in, "__ATOMIC_HLE_RELEASE=%d", IX86_HLE_RELEASE);
 691
 692   cpp_define (parse_in, "__GCC_ASM_FLAG_OUTPUTS__");
 693
 694   ix86_target_macros_internal (ix86_isa_flags,
 695                                ix86_isa_flags2,
 696                                ix86_arch,
 697                                ix86_tune,
 698                                ix86_fpmath,
 699                                cpp_define);
 700
 701   cpp_define (parse_in, "__SEG_FS");
 702   cpp_define (parse_in, "__SEG_GS");
 703
 704   if (flag_cf_protection != CF_NONE)
 705     cpp_define_formatted (parse_in, "__CET__=%d",
 706                           flag_cf_protection & ~CF_SET);
 707 }
 708
 709 \f
 710 /* Register target pragmas.  We need to add the hook for parsing #pragma GCC
 711    option here rather than in i386.c since it will pull in various preprocessor
 712    functions, and those are not present in languages like fortran without a
 713    preprocessor.  */
 714
 715 void
 716 ix86_register_pragmas (void)
 717 {
 718   /* Update pragma hook to allow parsing #pragma GCC target.  */
 719   targetm.target_option.pragma_parse = ix86_pragma_target_parse;
 720
 721   c_register_addr_space ("__seg_fs", ADDR_SPACE_SEG_FS);
 722   c_register_addr_space ("__seg_gs", ADDR_SPACE_SEG_GS);
 723
 724 #ifdef REGISTER_SUBTARGET_PRAGMAS
 725   REGISTER_SUBTARGET_PRAGMAS ();
 726 #endif
 727 }