gcc/config/i386/i386-c.c

   1 /* Subroutines used for macro/preprocessor support on the ia-32.
   2    Copyright (C) 2008-2019 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     case PROCESSOR_CASCADELAKE:
 222       def_or_undef (parse_in, "__cascadelake");
 223       def_or_undef (parse_in, "__cascadelake__");
 224       break;
 225     /* use PROCESSOR_max to not set/unset the arch macro.  */
 226     case PROCESSOR_max:
 227       break;
 228     case PROCESSOR_INTEL:
 229     case PROCESSOR_GENERIC:
 230       gcc_unreachable ();
 231     }
 232
 233   /* Built-ins based on -mtune=.  */
 234   switch (tune)
 235     {
 236     case PROCESSOR_I386:
 237       def_or_undef (parse_in, "__tune_i386__");
 238       break;
 239     case PROCESSOR_I486:
 240       def_or_undef (parse_in, "__tune_i486__");
 241       break;
 242     case PROCESSOR_PENTIUM:
 243       def_or_undef (parse_in, "__tune_i586__");
 244       def_or_undef (parse_in, "__tune_pentium__");
 245       if (last_tune_char == 'x')
 246         def_or_undef (parse_in, "__tune_pentium_mmx__");
 247       break;
 248     case PROCESSOR_PENTIUMPRO:
 249       def_or_undef (parse_in, "__tune_i686__");
 250       def_or_undef (parse_in, "__tune_pentiumpro__");
 251       switch (last_tune_char)
 252         {
 253         case '3':
 254           def_or_undef (parse_in, "__tune_pentium3__");
 255           /* FALLTHRU */
 256         case '2':
 257           def_or_undef (parse_in, "__tune_pentium2__");
 258           break;
 259         }
 260       break;
 261     case PROCESSOR_GEODE:
 262       def_or_undef (parse_in, "__tune_geode__");
 263       break;
 264     case PROCESSOR_K6:
 265       def_or_undef (parse_in, "__tune_k6__");
 266       if (last_tune_char == '2')
 267         def_or_undef (parse_in, "__tune_k6_2__");
 268       else if (last_tune_char == '3')
 269         def_or_undef (parse_in, "__tune_k6_3__");
 270       else if (isa_flag & OPTION_MASK_ISA_3DNOW)
 271         def_or_undef (parse_in, "__tune_k6_3__");
 272       break;
 273     case PROCESSOR_ATHLON:
 274       def_or_undef (parse_in, "__tune_athlon__");
 275       if (isa_flag & OPTION_MASK_ISA_SSE)
 276         def_or_undef (parse_in, "__tune_athlon_sse__");
 277       break;
 278     case PROCESSOR_K8:
 279       def_or_undef (parse_in, "__tune_k8__");
 280       break;
 281     case PROCESSOR_AMDFAM10:
 282       def_or_undef (parse_in, "__tune_amdfam10__");
 283       break;
 284     case PROCESSOR_BDVER1:
 285       def_or_undef (parse_in, "__tune_bdver1__");
 286       break;
 287     case PROCESSOR_BDVER2:
 288       def_or_undef (parse_in, "__tune_bdver2__");
 289       break;
 290     case PROCESSOR_BDVER3:
 291       def_or_undef (parse_in, "__tune_bdver3__");
 292       break;
 293     case PROCESSOR_BDVER4:
 294       def_or_undef (parse_in, "__tune_bdver4__");
 295       break;
 296     case PROCESSOR_ZNVER1:
 297       def_or_undef (parse_in, "__tune_znver1__");
 298       break;
 299     case PROCESSOR_ZNVER2:
 300       def_or_undef (parse_in, "__tune_znver2__");
 301       break;
 302     case PROCESSOR_BTVER1:
 303       def_or_undef (parse_in, "__tune_btver1__");
 304       break;
 305     case PROCESSOR_BTVER2:
 306       def_or_undef (parse_in, "__tune_btver2__");
 307        break;
 308     case PROCESSOR_PENTIUM4:
 309       def_or_undef (parse_in, "__tune_pentium4__");
 310       break;
 311     case PROCESSOR_NOCONA:
 312       def_or_undef (parse_in, "__tune_nocona__");
 313       break;
 314     case PROCESSOR_CORE2:
 315       def_or_undef (parse_in, "__tune_core2__");
 316       break;
 317     case PROCESSOR_NEHALEM:
 318       def_or_undef (parse_in, "__tune_corei7__");
 319       def_or_undef (parse_in, "__tune_nehalem__");
 320       break;
 321     case PROCESSOR_SANDYBRIDGE:
 322       def_or_undef (parse_in, "__tune_corei7_avx__");
 323       def_or_undef (parse_in, "__tune_sandybridge__");
 324       break;
 325     case PROCESSOR_HASWELL:
 326       def_or_undef (parse_in, "__tune_core_avx2__");
 327       def_or_undef (parse_in, "__tune_haswell__");
 328       break;
 329     case PROCESSOR_BONNELL:
 330       def_or_undef (parse_in, "__tune_atom__");
 331       def_or_undef (parse_in, "__tune_bonnell__");
 332       break;
 333     case PROCESSOR_SILVERMONT:
 334       def_or_undef (parse_in, "__tune_slm__");
 335       def_or_undef (parse_in, "__tune_silvermont__");
 336       break;
 337     case PROCESSOR_GOLDMONT:
 338       def_or_undef (parse_in, "__tune_goldmont__");
 339       break;
 340     case PROCESSOR_GOLDMONT_PLUS:
 341       def_or_undef (parse_in, "__tune_goldmont_plus__");
 342       break;
 343     case PROCESSOR_TREMONT:
 344       def_or_undef (parse_in, "__tune_tremont__");
 345       break;
 346     case PROCESSOR_KNL:
 347       def_or_undef (parse_in, "__tune_knl__");
 348       break;
 349     case PROCESSOR_KNM:
 350       def_or_undef (parse_in, "__tune_knm__");
 351       break;
 352     case PROCESSOR_SKYLAKE:
 353       def_or_undef (parse_in, "__tune_skylake__");
 354       break;
 355     case PROCESSOR_SKYLAKE_AVX512:
 356       def_or_undef (parse_in, "__tune_skylake_avx512__");
 357       break;
 358     case PROCESSOR_CANNONLAKE:
 359       def_or_undef (parse_in, "__tune_cannonlake__");
 360       break;
 361     case PROCESSOR_ICELAKE_CLIENT:
 362       def_or_undef (parse_in, "__tune_icelake_client__");
 363       break;
 364     case PROCESSOR_ICELAKE_SERVER:
 365       def_or_undef (parse_in, "__tune_icelake_server__");
 366       break;
 367     case PROCESSOR_LAKEMONT:
 368       def_or_undef (parse_in, "__tune_lakemont__");
 369       break;
 370     case PROCESSOR_CASCADELAKE:
 371       def_or_undef (parse_in, "__tune_cascadelake__");
 372       break;
 373     case PROCESSOR_INTEL:
 374     case PROCESSOR_GENERIC:
 375       break;
 376     /* use PROCESSOR_max to not set/unset the tune macro.  */
 377     case PROCESSOR_max:
 378       break;
 379     }
 380
 381   switch (ix86_cmodel)
 382     {
 383     case CM_SMALL:
 384     case CM_SMALL_PIC:
 385       def_or_undef (parse_in, "__code_model_small__");
 386       break;
 387     case CM_MEDIUM:
 388     case CM_MEDIUM_PIC:
 389       def_or_undef (parse_in, "__code_model_medium__");
 390       break;
 391     case CM_LARGE:
 392     case CM_LARGE_PIC:
 393       def_or_undef (parse_in, "__code_model_large__");
 394       break;
 395     case CM_32:
 396       def_or_undef (parse_in, "__code_model_32__");
 397       break;
 398     case CM_KERNEL:
 399       def_or_undef (parse_in, "__code_model_kernel__");
 400       break;
 401     default:
 402       ;
 403     }
 404
 405   if (isa_flag2 & OPTION_MASK_ISA_WBNOINVD)
 406     def_or_undef (parse_in, "__WBNOINVD__");
 407   if (isa_flag & OPTION_MASK_ISA_MMX)
 408     def_or_undef (parse_in, "__MMX__");
 409   if (isa_flag & OPTION_MASK_ISA_3DNOW)
 410     def_or_undef (parse_in, "__3dNOW__");
 411   if (isa_flag & OPTION_MASK_ISA_3DNOW_A)
 412     def_or_undef (parse_in, "__3dNOW_A__");
 413   if (isa_flag & OPTION_MASK_ISA_SSE)
 414     def_or_undef (parse_in, "__SSE__");
 415   if (isa_flag & OPTION_MASK_ISA_SSE2)
 416     def_or_undef (parse_in, "__SSE2__");
 417   if (isa_flag & OPTION_MASK_ISA_SSE3)
 418     def_or_undef (parse_in, "__SSE3__");
 419   if (isa_flag & OPTION_MASK_ISA_SSSE3)
 420     def_or_undef (parse_in, "__SSSE3__");
 421   if (isa_flag & OPTION_MASK_ISA_SSE4_1)
 422     def_or_undef (parse_in, "__SSE4_1__");
 423   if (isa_flag & OPTION_MASK_ISA_SSE4_2)
 424     def_or_undef (parse_in, "__SSE4_2__");
 425   if (isa_flag & OPTION_MASK_ISA_AES)
 426     def_or_undef (parse_in, "__AES__");
 427   if (isa_flag & OPTION_MASK_ISA_SHA)
 428     def_or_undef (parse_in, "__SHA__");
 429   if (isa_flag & OPTION_MASK_ISA_PCLMUL)
 430     def_or_undef (parse_in, "__PCLMUL__");
 431   if (isa_flag & OPTION_MASK_ISA_AVX)
 432     def_or_undef (parse_in, "__AVX__");
 433   if (isa_flag & OPTION_MASK_ISA_AVX2)
 434     def_or_undef (parse_in, "__AVX2__");
 435   if (isa_flag & OPTION_MASK_ISA_AVX512F)
 436     def_or_undef (parse_in, "__AVX512F__");
 437   if (isa_flag & OPTION_MASK_ISA_AVX512ER)
 438     def_or_undef (parse_in, "__AVX512ER__");
 439   if (isa_flag & OPTION_MASK_ISA_AVX512CD)
 440     def_or_undef (parse_in, "__AVX512CD__");
 441   if (isa_flag & OPTION_MASK_ISA_AVX512PF)
 442     def_or_undef (parse_in, "__AVX512PF__");
 443   if (isa_flag & OPTION_MASK_ISA_AVX512DQ)
 444     def_or_undef (parse_in, "__AVX512DQ__");
 445   if (isa_flag & OPTION_MASK_ISA_AVX512BW)
 446     def_or_undef (parse_in, "__AVX512BW__");
 447   if (isa_flag & OPTION_MASK_ISA_AVX512VL)
 448     def_or_undef (parse_in, "__AVX512VL__");
 449   if (isa_flag & OPTION_MASK_ISA_AVX512VBMI)
 450     def_or_undef (parse_in, "__AVX512VBMI__");
 451   if (isa_flag & OPTION_MASK_ISA_AVX512IFMA)
 452     def_or_undef (parse_in, "__AVX512IFMA__");
 453   if (isa_flag2 & OPTION_MASK_ISA_AVX5124VNNIW)
 454     def_or_undef (parse_in, "__AVX5124VNNIW__");
 455   if (isa_flag & OPTION_MASK_ISA_AVX512VBMI2)
 456     def_or_undef (parse_in, "__AVX512VBMI2__");
 457   if (isa_flag & OPTION_MASK_ISA_AVX512VNNI)
 458     def_or_undef (parse_in, "__AVX512VNNI__");
 459   if (isa_flag2 & OPTION_MASK_ISA_PCONFIG)
 460     def_or_undef (parse_in, "__PCONFIG__");
 461   if (isa_flag2 & OPTION_MASK_ISA_SGX)
 462     def_or_undef (parse_in, "__SGX__");
 463   if (isa_flag2 & OPTION_MASK_ISA_AVX5124FMAPS)
 464     def_or_undef (parse_in, "__AVX5124FMAPS__");
 465   if (isa_flag & OPTION_MASK_ISA_AVX512BITALG)
 466     def_or_undef (parse_in, "__AVX512BITALG__");
 467   if (isa_flag & OPTION_MASK_ISA_AVX512VPOPCNTDQ)
 468     def_or_undef (parse_in, "__AVX512VPOPCNTDQ__");
 469   if (isa_flag & OPTION_MASK_ISA_FMA)
 470     def_or_undef (parse_in, "__FMA__");
 471   if (isa_flag & OPTION_MASK_ISA_RTM)
 472     def_or_undef (parse_in, "__RTM__");
 473   if (isa_flag & OPTION_MASK_ISA_SSE4A)
 474     def_or_undef (parse_in, "__SSE4A__");
 475   if (isa_flag & OPTION_MASK_ISA_FMA4)
 476     def_or_undef (parse_in, "__FMA4__");
 477   if (isa_flag & OPTION_MASK_ISA_XOP)
 478     def_or_undef (parse_in, "__XOP__");
 479   if (isa_flag & OPTION_MASK_ISA_LWP)
 480     def_or_undef (parse_in, "__LWP__");
 481   if (isa_flag & OPTION_MASK_ISA_ABM)
 482     def_or_undef (parse_in, "__ABM__");
 483   if (isa_flag & OPTION_MASK_ISA_BMI)
 484     def_or_undef (parse_in, "__BMI__");
 485   if (isa_flag & OPTION_MASK_ISA_BMI2)
 486     def_or_undef (parse_in, "__BMI2__");
 487   if (isa_flag & OPTION_MASK_ISA_LZCNT)
 488     def_or_undef (parse_in, "__LZCNT__");
 489   if (isa_flag & OPTION_MASK_ISA_TBM)
 490     def_or_undef (parse_in, "__TBM__");
 491   if (isa_flag & OPTION_MASK_ISA_POPCNT)
 492     def_or_undef (parse_in, "__POPCNT__");
 493   if (isa_flag & OPTION_MASK_ISA_FSGSBASE)
 494     def_or_undef (parse_in, "__FSGSBASE__");
 495   if (isa_flag & OPTION_MASK_ISA_RDRND)
 496     def_or_undef (parse_in, "__RDRND__");
 497   if (isa_flag & OPTION_MASK_ISA_F16C)
 498     def_or_undef (parse_in, "__F16C__");
 499   if (isa_flag & OPTION_MASK_ISA_RDSEED)
 500     def_or_undef (parse_in, "__RDSEED__");
 501   if (isa_flag & OPTION_MASK_ISA_PRFCHW)
 502     def_or_undef (parse_in, "__PRFCHW__");
 503   if (isa_flag & OPTION_MASK_ISA_ADX)
 504     def_or_undef (parse_in, "__ADX__");
 505   if (isa_flag & OPTION_MASK_ISA_FXSR)
 506     def_or_undef (parse_in, "__FXSR__");
 507   if (isa_flag & OPTION_MASK_ISA_XSAVE)
 508     def_or_undef (parse_in, "__XSAVE__");
 509   if (isa_flag & OPTION_MASK_ISA_XSAVEOPT)
 510     def_or_undef (parse_in, "__XSAVEOPT__");
 511   if (isa_flag & OPTION_MASK_ISA_PREFETCHWT1)
 512     def_or_undef (parse_in, "__PREFETCHWT1__");
 513   if ((fpmath & FPMATH_SSE) && (isa_flag & OPTION_MASK_ISA_SSE))
 514     def_or_undef (parse_in, "__SSE_MATH__");
 515   if ((fpmath & FPMATH_SSE) && (isa_flag & OPTION_MASK_ISA_SSE2))
 516     def_or_undef (parse_in, "__SSE2_MATH__");
 517   if (isa_flag & OPTION_MASK_ISA_CLFLUSHOPT)
 518     def_or_undef (parse_in, "__CLFLUSHOPT__");
 519   if (isa_flag2 & OPTION_MASK_ISA_CLZERO)
 520     def_or_undef (parse_in, "__CLZERO__");
 521   if (isa_flag & OPTION_MASK_ISA_XSAVEC)
 522     def_or_undef (parse_in, "__XSAVEC__");
 523   if (isa_flag & OPTION_MASK_ISA_XSAVES)
 524     def_or_undef (parse_in, "__XSAVES__");
 525   if (isa_flag & OPTION_MASK_ISA_CLWB)
 526     def_or_undef (parse_in, "__CLWB__");
 527   if (isa_flag2 & OPTION_MASK_ISA_MWAITX)
 528     def_or_undef (parse_in, "__MWAITX__");
 529   if (isa_flag & OPTION_MASK_ISA_PKU)
 530     def_or_undef (parse_in, "__PKU__");
 531   if (isa_flag2 & OPTION_MASK_ISA_RDPID)
 532     def_or_undef (parse_in, "__RDPID__");
 533   if (isa_flag & OPTION_MASK_ISA_GFNI)
 534     def_or_undef (parse_in, "__GFNI__");
 535   if ((isa_flag & OPTION_MASK_ISA_SHSTK))
 536     def_or_undef (parse_in, "__SHSTK__");
 537   if (isa_flag2 & OPTION_MASK_ISA_VAES)
 538     def_or_undef (parse_in, "__VAES__");
 539   if (isa_flag & OPTION_MASK_ISA_VPCLMULQDQ)
 540     def_or_undef (parse_in, "__VPCLMULQDQ__");
 541   if (isa_flag & OPTION_MASK_ISA_MOVDIRI)
 542     def_or_undef (parse_in, "__MOVDIRI__");
 543   if (isa_flag2 & OPTION_MASK_ISA_MOVDIR64B)
 544     def_or_undef (parse_in, "__MOVDIR64B__");
 545   if (isa_flag2 & OPTION_MASK_ISA_WAITPKG)
 546     def_or_undef (parse_in, "__WAITPKG__");
 547   if (isa_flag2 & OPTION_MASK_ISA_CLDEMOTE)
 548     def_or_undef (parse_in, "__CLDEMOTE__");
 549   if (isa_flag2 & OPTION_MASK_ISA_PTWRITE)
 550     def_or_undef (parse_in, "__PTWRITE__");
 551   if (isa_flag2 & OPTION_MASK_ISA_AVX512BF16)
 552     def_or_undef (parse_in, "__AVX512BF16__");
 553   if (TARGET_MMX_WITH_SSE)
 554     def_or_undef (parse_in, "__MMX_WITH_SSE__");
 555   if (isa_flag2 & OPTION_MASK_ISA_ENQCMD)
 556     def_or_undef (parse_in, "__ENQCMD__");
 557   if (TARGET_IAMCU)
 558     {
 559       def_or_undef (parse_in, "__iamcu");
 560       def_or_undef (parse_in, "__iamcu__");
 561     }
 562 }
 563
 564 \f
 565 /* Hook to validate the current #pragma GCC target and set the state, and
 566    update the macros based on what was changed.  If ARGS is NULL, then
 567    POP_TARGET is used to reset the options.  */
 568
 569 static bool
 570 ix86_pragma_target_parse (tree args, tree pop_target)
 571 {
 572   tree prev_tree = build_target_option_node (&global_options);
 573   tree cur_tree;
 574   struct cl_target_option *prev_opt;
 575   struct cl_target_option *cur_opt;
 576   HOST_WIDE_INT prev_isa;
 577   HOST_WIDE_INT cur_isa;
 578   HOST_WIDE_INT diff_isa;
 579   HOST_WIDE_INT prev_isa2;
 580   HOST_WIDE_INT cur_isa2;
 581   HOST_WIDE_INT diff_isa2;
 582   enum processor_type prev_arch;
 583   enum processor_type prev_tune;
 584   enum processor_type cur_arch;
 585   enum processor_type cur_tune;
 586
 587   if (! args)
 588     {
 589       cur_tree = (pop_target ? pop_target : target_option_default_node);
 590       cl_target_option_restore (&global_options,
 591                                 TREE_TARGET_OPTION (cur_tree));
 592     }
 593   else
 594     {
 595       cur_tree = ix86_valid_target_attribute_tree (NULL_TREE, args,
 596                                                    &global_options,
 597                                                    &global_options_set, 0);
 598       if (!cur_tree || cur_tree == error_mark_node)
 599        {
 600          cl_target_option_restore (&global_options,
 601                                    TREE_TARGET_OPTION (prev_tree));
 602          return false;
 603        }
 604     }
 605
 606   target_option_current_node = cur_tree;
 607   ix86_reset_previous_fndecl ();
 608
 609   /* Figure out the previous/current isa, arch, tune and the differences.  */
 610   prev_opt  = TREE_TARGET_OPTION (prev_tree);
 611   cur_opt   = TREE_TARGET_OPTION (cur_tree);
 612   prev_isa  = prev_opt->x_ix86_isa_flags;
 613   cur_isa   = cur_opt->x_ix86_isa_flags;
 614   diff_isa  = (prev_isa ^ cur_isa);
 615   prev_isa2  = prev_opt->x_ix86_isa_flags2;
 616   cur_isa2   = cur_opt->x_ix86_isa_flags2;
 617   diff_isa2  = (prev_isa2 ^ cur_isa2);
 618   prev_arch = (enum processor_type) prev_opt->arch;
 619   prev_tune = (enum processor_type) prev_opt->tune;
 620   cur_arch  = (enum processor_type) cur_opt->arch;
 621   cur_tune  = (enum processor_type) cur_opt->tune;
 622
 623   /* If the same processor is used for both previous and current options, don't
 624      change the macros.  */
 625   if (cur_arch == prev_arch)
 626     cur_arch = prev_arch = PROCESSOR_max;
 627
 628   if (cur_tune == prev_tune)
 629     cur_tune = prev_tune = PROCESSOR_max;
 630
 631   /* Undef all of the macros for that are no longer current.  */
 632   ix86_target_macros_internal (prev_isa & diff_isa,
 633                                prev_isa2 & diff_isa2,
 634                                prev_arch,
 635                                prev_tune,
 636                                (enum fpmath_unit) prev_opt->x_ix86_fpmath,
 637                                cpp_undef);
 638
 639   /* For the definitions, ensure all newly defined macros are considered
 640      as used for -Wunused-macros.  There is no point warning about the
 641      compiler predefined macros.  */
 642   cpp_options *cpp_opts = cpp_get_options (parse_in);
 643   unsigned char saved_warn_unused_macros = cpp_opts->warn_unused_macros;
 644   cpp_opts->warn_unused_macros = 0;
 645
 646   /* Define all of the macros for new options that were just turned on.  */
 647   ix86_target_macros_internal (cur_isa & diff_isa,
 648                                cur_isa2 & diff_isa2,
 649                                cur_arch,
 650                                cur_tune,
 651                                (enum fpmath_unit) cur_opt->x_ix86_fpmath,
 652                                cpp_define);
 653
 654   cpp_opts->warn_unused_macros = saved_warn_unused_macros;
 655
 656   return true;
 657 }
 658 \f
 659 /* Function to tell the preprocessor about the defines for the current target.  */
 660
 661 void
 662 ix86_target_macros (void)
 663 {
 664   /* 32/64-bit won't change with target specific options, so do the assert and
 665      builtin_define_std calls here.  */
 666   if (TARGET_64BIT)
 667     {
 668       cpp_assert (parse_in, "cpu=x86_64");
 669       cpp_assert (parse_in, "machine=x86_64");
 670       cpp_define (parse_in, "__amd64");
 671       cpp_define (parse_in, "__amd64__");
 672       cpp_define (parse_in, "__x86_64");
 673       cpp_define (parse_in, "__x86_64__");
 674       if (TARGET_X32)
 675         {
 676           cpp_define (parse_in, "_ILP32");
 677           cpp_define (parse_in, "__ILP32__");
 678         }
 679     }
 680   else
 681     {
 682       cpp_assert (parse_in, "cpu=i386");
 683       cpp_assert (parse_in, "machine=i386");
 684       builtin_define_std ("i386");
 685     }
 686
 687   if (!TARGET_80387)
 688     cpp_define (parse_in, "_SOFT_FLOAT");
 689
 690   if (TARGET_LONG_DOUBLE_64)
 691     cpp_define (parse_in, "__LONG_DOUBLE_64__");
 692
 693   if (TARGET_LONG_DOUBLE_128)
 694     cpp_define (parse_in, "__LONG_DOUBLE_128__");
 695
 696   if (TARGET_128BIT_LONG_DOUBLE)
 697     cpp_define (parse_in, "__SIZEOF_FLOAT80__=16");
 698   else
 699     cpp_define (parse_in, "__SIZEOF_FLOAT80__=12");
 700
 701   cpp_define (parse_in, "__SIZEOF_FLOAT128__=16");
 702
 703   cpp_define_formatted (parse_in, "__ATOMIC_HLE_ACQUIRE=%d", IX86_HLE_ACQUIRE);
 704   cpp_define_formatted (parse_in, "__ATOMIC_HLE_RELEASE=%d", IX86_HLE_RELEASE);
 705
 706   cpp_define (parse_in, "__GCC_ASM_FLAG_OUTPUTS__");
 707
 708   ix86_target_macros_internal (ix86_isa_flags,
 709                                ix86_isa_flags2,
 710                                ix86_arch,
 711                                ix86_tune,
 712                                ix86_fpmath,
 713                                cpp_define);
 714
 715   cpp_define (parse_in, "__SEG_FS");
 716   cpp_define (parse_in, "__SEG_GS");
 717
 718   if (flag_cf_protection != CF_NONE)
 719     cpp_define_formatted (parse_in, "__CET__=%d",
 720                           flag_cf_protection & ~CF_SET);
 721 }
 722
 723 \f
 724 /* Register target pragmas.  We need to add the hook for parsing #pragma GCC
 725    option here rather than in i386.c since it will pull in various preprocessor
 726    functions, and those are not present in languages like fortran without a
 727    preprocessor.  */
 728
 729 void
 730 ix86_register_pragmas (void)
 731 {
 732   /* Update pragma hook to allow parsing #pragma GCC target.  */
 733   targetm.target_option.pragma_parse = ix86_pragma_target_parse;
 734
 735   c_register_addr_space ("__seg_fs", ADDR_SPACE_SEG_FS);
 736   c_register_addr_space ("__seg_gs", ADDR_SPACE_SEG_GS);
 737
 738 #ifdef REGISTER_SUBTARGET_PRAGMAS
 739   REGISTER_SUBTARGET_PRAGMAS ();
 740 #endif
 741 }