clang/lib/Basic/Targets.cpp

   1 //===--- Targets.cpp - Implement target feature support -------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file implements construction of a TargetInfo object from a
  10 // target triple.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "Targets.h"
  15
  16 #include "Targets/AArch64.h"
  17 #include "Targets/AMDGPU.h"
  18 #include "Targets/ARC.h"
  19 #include "Targets/ARM.h"
  20 #include "Targets/AVR.h"
  21 #include "Targets/BPF.h"
  22 #include "Targets/CSKY.h"
  23 #include "Targets/DirectX.h"
  24 #include "Targets/Hexagon.h"
  25 #include "Targets/Lanai.h"
  26 #include "Targets/Le64.h"
  27 #include "Targets/LoongArch.h"
  28 #include "Targets/M68k.h"
  29 #include "Targets/MSP430.h"
  30 #include "Targets/Mips.h"
  31 #include "Targets/NVPTX.h"
  32 #include "Targets/OSTargets.h"
  33 #include "Targets/PNaCl.h"
  34 #include "Targets/PPC.h"
  35 #include "Targets/RISCV.h"
  36 #include "Targets/SPIR.h"
  37 #include "Targets/Sparc.h"
  38 #include "Targets/SystemZ.h"
  39 #include "Targets/TCE.h"
  40 #include "Targets/VE.h"
  41 #include "Targets/WebAssembly.h"
  42 #include "Targets/X86.h"
  43 #include "Targets/XCore.h"
  44 #include "clang/Basic/Diagnostic.h"
  45 #include "clang/Basic/DiagnosticFrontend.h"
  46 #include "llvm/ADT/StringExtras.h"
  47 #include "llvm/TargetParser/Triple.h"
  48
  49 using namespace clang;
  50
  51 namespace clang {
  52 namespace targets {
  53 //===----------------------------------------------------------------------===//
  54 //  Common code shared among targets.
  55 //===----------------------------------------------------------------------===//
  56
  57 /// DefineStd - Define a macro name and standard variants.  For example if
  58 /// MacroName is "unix", then this will define "__unix", "__unix__", and "unix"
  59 /// when in GNU mode.
  60 void DefineStd(MacroBuilder &Builder, StringRef MacroName,
  61                const LangOptions &Opts) {
  62   assert(MacroName[0] != '_' && "Identifier should be in the user's namespace");
  63
  64   // If in GNU mode (e.g. -std=gnu99 but not -std=c99) define the raw identifier
  65   // in the user's namespace.
  66   if (Opts.GNUMode)
  67     Builder.defineMacro(MacroName);
  68
  69   // Define __unix.
  70   Builder.defineMacro("__" + MacroName);
  71
  72   // Define __unix__.
  73   Builder.defineMacro("__" + MacroName + "__");
  74 }
  75
  76 void defineCPUMacros(MacroBuilder &Builder, StringRef CPUName, bool Tuning) {
  77   Builder.defineMacro("__" + CPUName);
  78   Builder.defineMacro("__" + CPUName + "__");
  79   if (Tuning)
  80     Builder.defineMacro("__tune_" + CPUName + "__");
  81 }
  82
  83 void addCygMingDefines(const LangOptions &Opts, MacroBuilder &Builder) {
  84   // Mingw and cygwin define __declspec(a) to __attribute__((a)).  Clang
  85   // supports __declspec natively under -fdeclspec (also enabled with
  86   // -fms-extensions), but we define a no-op __declspec macro anyway for
  87   // pre-processor compatibility.
  88   if (Opts.DeclSpecKeyword)
  89     Builder.defineMacro("__declspec", "__declspec");
  90   else
  91     Builder.defineMacro("__declspec(a)", "__attribute__((a))");
  92
  93   if (!Opts.MicrosoftExt) {
  94     // Provide macros for all the calling convention keywords.  Provide both
  95     // single and double underscore prefixed variants.  These are available on
  96     // x64 as well as x86, even though they have no effect.
  97     const char *CCs[] = {"cdecl", "stdcall", "fastcall", "thiscall", "pascal"};
  98     for (const char *CC : CCs) {
  99       std::string GCCSpelling = "__attribute__((__";
 100       GCCSpelling += CC;
 101       GCCSpelling += "__))";
 102       Builder.defineMacro(Twine("_") + CC, GCCSpelling);
 103       Builder.defineMacro(Twine("__") + CC, GCCSpelling);
 104     }
 105   }
 106 }
 107
 108 //===----------------------------------------------------------------------===//
 109 // Driver code
 110 //===----------------------------------------------------------------------===//
 111
 112 std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple,
 113                                            const TargetOptions &Opts) {
 114   llvm::Triple::OSType os = Triple.getOS();
 115
 116   switch (Triple.getArch()) {
 117   default:
 118     return nullptr;
 119
 120   case llvm::Triple::arc:
 121     return std::make_unique<ARCTargetInfo>(Triple, Opts);
 122
 123   case llvm::Triple::xcore:
 124     return std::make_unique<XCoreTargetInfo>(Triple, Opts);
 125
 126   case llvm::Triple::hexagon:
 127     if (os == llvm::Triple::Linux &&
 128         Triple.getEnvironment() == llvm::Triple::Musl)
 129       return std::make_unique<LinuxTargetInfo<HexagonTargetInfo>>(Triple, Opts);
 130     return std::make_unique<HexagonTargetInfo>(Triple, Opts);
 131
 132   case llvm::Triple::lanai:
 133     return std::make_unique<LanaiTargetInfo>(Triple, Opts);
 134
 135   case llvm::Triple::aarch64_32:
 136     if (Triple.isOSDarwin())
 137       return std::make_unique<DarwinAArch64TargetInfo>(Triple, Opts);
 138
 139     return nullptr;
 140   case llvm::Triple::aarch64:
 141     if (Triple.isOSDarwin())
 142       return std::make_unique<DarwinAArch64TargetInfo>(Triple, Opts);
 143
 144     switch (os) {
 145     case llvm::Triple::FreeBSD:
 146       return std::make_unique<FreeBSDTargetInfo<AArch64leTargetInfo>>(Triple,
 147                                                                       Opts);
 148     case llvm::Triple::Fuchsia:
 149       return std::make_unique<FuchsiaTargetInfo<AArch64leTargetInfo>>(Triple,
 150                                                                       Opts);
 151     case llvm::Triple::Haiku:
 152       return std::make_unique<HaikuTargetInfo<AArch64leTargetInfo>>(Triple,
 153                                                                     Opts);
 154     case llvm::Triple::Linux:
 155       switch (Triple.getEnvironment()) {
 156       default:
 157         return std::make_unique<LinuxTargetInfo<AArch64leTargetInfo>>(Triple,
 158                                                                       Opts);
 159       case llvm::Triple::OpenHOS:
 160         return std::make_unique<OHOSTargetInfo<AArch64leTargetInfo>>(Triple,
 161                                                                      Opts);
 162       }
 163     case llvm::Triple::NetBSD:
 164       return std::make_unique<NetBSDTargetInfo<AArch64leTargetInfo>>(Triple,
 165                                                                      Opts);
 166     case llvm::Triple::OpenBSD:
 167       return std::make_unique<OpenBSDTargetInfo<AArch64leTargetInfo>>(Triple,
 168                                                                       Opts);
 169     case llvm::Triple::Win32:
 170       switch (Triple.getEnvironment()) {
 171       case llvm::Triple::GNU:
 172         return std::make_unique<MinGWARM64TargetInfo>(Triple, Opts);
 173       case llvm::Triple::MSVC:
 174       default: // Assume MSVC for unknown environments
 175         return std::make_unique<MicrosoftARM64TargetInfo>(Triple, Opts);
 176       }
 177     default:
 178       return std::make_unique<AArch64leTargetInfo>(Triple, Opts);
 179     }
 180
 181   case llvm::Triple::aarch64_be:
 182     switch (os) {
 183     case llvm::Triple::FreeBSD:
 184       return std::make_unique<FreeBSDTargetInfo<AArch64beTargetInfo>>(Triple,
 185                                                                       Opts);
 186     case llvm::Triple::Fuchsia:
 187       return std::make_unique<FuchsiaTargetInfo<AArch64beTargetInfo>>(Triple,
 188                                                                       Opts);
 189     case llvm::Triple::Linux:
 190       return std::make_unique<LinuxTargetInfo<AArch64beTargetInfo>>(Triple,
 191                                                                     Opts);
 192     case llvm::Triple::NetBSD:
 193       return std::make_unique<NetBSDTargetInfo<AArch64beTargetInfo>>(Triple,
 194                                                                      Opts);
 195     default:
 196       return std::make_unique<AArch64beTargetInfo>(Triple, Opts);
 197     }
 198
 199   case llvm::Triple::arm:
 200   case llvm::Triple::thumb:
 201     if (Triple.isOSBinFormatMachO())
 202       return std::make_unique<DarwinARMTargetInfo>(Triple, Opts);
 203
 204     switch (os) {
 205     case llvm::Triple::Linux:
 206       switch (Triple.getEnvironment()) {
 207       default:
 208         return std::make_unique<LinuxTargetInfo<ARMleTargetInfo>>(Triple, Opts);
 209       case llvm::Triple::OpenHOS:
 210         return std::make_unique<OHOSTargetInfo<ARMleTargetInfo>>(Triple, Opts);
 211       }
 212     case llvm::Triple::LiteOS:
 213       return std::make_unique<OHOSTargetInfo<ARMleTargetInfo>>(Triple, Opts);
 214     case llvm::Triple::FreeBSD:
 215       return std::make_unique<FreeBSDTargetInfo<ARMleTargetInfo>>(Triple, Opts);
 216     case llvm::Triple::NetBSD:
 217       return std::make_unique<NetBSDTargetInfo<ARMleTargetInfo>>(Triple, Opts);
 218     case llvm::Triple::OpenBSD:
 219       return std::make_unique<OpenBSDTargetInfo<ARMleTargetInfo>>(Triple, Opts);
 220     case llvm::Triple::RTEMS:
 221       return std::make_unique<RTEMSTargetInfo<ARMleTargetInfo>>(Triple, Opts);
 222     case llvm::Triple::Haiku:
 223       return std::make_unique<HaikuTargetInfo<ARMleTargetInfo>>(Triple, Opts);
 224     case llvm::Triple::NaCl:
 225       return std::make_unique<NaClTargetInfo<ARMleTargetInfo>>(Triple, Opts);
 226     case llvm::Triple::Win32:
 227       switch (Triple.getEnvironment()) {
 228       case llvm::Triple::Cygnus:
 229         return std::make_unique<CygwinARMTargetInfo>(Triple, Opts);
 230       case llvm::Triple::GNU:
 231         return std::make_unique<MinGWARMTargetInfo>(Triple, Opts);
 232       case llvm::Triple::Itanium:
 233         return std::make_unique<ItaniumWindowsARMleTargetInfo>(Triple, Opts);
 234       case llvm::Triple::MSVC:
 235       default: // Assume MSVC for unknown environments
 236         return std::make_unique<MicrosoftARMleTargetInfo>(Triple, Opts);
 237       }
 238     default:
 239       return std::make_unique<ARMleTargetInfo>(Triple, Opts);
 240     }
 241
 242   case llvm::Triple::armeb:
 243   case llvm::Triple::thumbeb:
 244     if (Triple.isOSDarwin())
 245       return std::make_unique<DarwinARMTargetInfo>(Triple, Opts);
 246
 247     switch (os) {
 248     case llvm::Triple::Linux:
 249       return std::make_unique<LinuxTargetInfo<ARMbeTargetInfo>>(Triple, Opts);
 250     case llvm::Triple::NetBSD:
 251       return std::make_unique<NetBSDTargetInfo<ARMbeTargetInfo>>(Triple, Opts);
 252     case llvm::Triple::RTEMS:
 253       return std::make_unique<RTEMSTargetInfo<ARMbeTargetInfo>>(Triple, Opts);
 254     case llvm::Triple::NaCl:
 255       return std::make_unique<NaClTargetInfo<ARMbeTargetInfo>>(Triple, Opts);
 256     default:
 257       return std::make_unique<ARMbeTargetInfo>(Triple, Opts);
 258     }
 259
 260   case llvm::Triple::avr:
 261     return std::make_unique<AVRTargetInfo>(Triple, Opts);
 262   case llvm::Triple::bpfeb:
 263   case llvm::Triple::bpfel:
 264     return std::make_unique<BPFTargetInfo>(Triple, Opts);
 265
 266   case llvm::Triple::msp430:
 267     return std::make_unique<MSP430TargetInfo>(Triple, Opts);
 268
 269   case llvm::Triple::mips:
 270     switch (os) {
 271     case llvm::Triple::Linux:
 272       return std::make_unique<LinuxTargetInfo<MipsTargetInfo>>(Triple, Opts);
 273     case llvm::Triple::RTEMS:
 274       return std::make_unique<RTEMSTargetInfo<MipsTargetInfo>>(Triple, Opts);
 275     case llvm::Triple::FreeBSD:
 276       return std::make_unique<FreeBSDTargetInfo<MipsTargetInfo>>(Triple, Opts);
 277     case llvm::Triple::NetBSD:
 278       return std::make_unique<NetBSDTargetInfo<MipsTargetInfo>>(Triple, Opts);
 279     default:
 280       return std::make_unique<MipsTargetInfo>(Triple, Opts);
 281     }
 282
 283   case llvm::Triple::mipsel:
 284     switch (os) {
 285     case llvm::Triple::Linux:
 286       switch (Triple.getEnvironment()) {
 287       default:
 288         return std::make_unique<LinuxTargetInfo<MipsTargetInfo>>(Triple, Opts);
 289       case llvm::Triple::OpenHOS:
 290         return std::make_unique<OHOSTargetInfo<MipsTargetInfo>>(Triple, Opts);
 291       }
 292     case llvm::Triple::RTEMS:
 293       return std::make_unique<RTEMSTargetInfo<MipsTargetInfo>>(Triple, Opts);
 294     case llvm::Triple::FreeBSD:
 295       return std::make_unique<FreeBSDTargetInfo<MipsTargetInfo>>(Triple, Opts);
 296     case llvm::Triple::NetBSD:
 297       return std::make_unique<NetBSDTargetInfo<MipsTargetInfo>>(Triple, Opts);
 298     case llvm::Triple::NaCl:
 299       return std::make_unique<NaClTargetInfo<NaClMips32TargetInfo>>(Triple,
 300                                                                     Opts);
 301     default:
 302       return std::make_unique<MipsTargetInfo>(Triple, Opts);
 303     }
 304
 305   case llvm::Triple::mips64:
 306     switch (os) {
 307     case llvm::Triple::Linux:
 308       return std::make_unique<LinuxTargetInfo<MipsTargetInfo>>(Triple, Opts);
 309     case llvm::Triple::RTEMS:
 310       return std::make_unique<RTEMSTargetInfo<MipsTargetInfo>>(Triple, Opts);
 311     case llvm::Triple::FreeBSD:
 312       return std::make_unique<FreeBSDTargetInfo<MipsTargetInfo>>(Triple, Opts);
 313     case llvm::Triple::NetBSD:
 314       return std::make_unique<NetBSDTargetInfo<MipsTargetInfo>>(Triple, Opts);
 315     case llvm::Triple::OpenBSD:
 316       return std::make_unique<OpenBSDTargetInfo<MipsTargetInfo>>(Triple, Opts);
 317     default:
 318       return std::make_unique<MipsTargetInfo>(Triple, Opts);
 319     }
 320
 321   case llvm::Triple::mips64el:
 322     switch (os) {
 323     case llvm::Triple::Linux:
 324       return std::make_unique<LinuxTargetInfo<MipsTargetInfo>>(Triple, Opts);
 325     case llvm::Triple::RTEMS:
 326       return std::make_unique<RTEMSTargetInfo<MipsTargetInfo>>(Triple, Opts);
 327     case llvm::Triple::FreeBSD:
 328       return std::make_unique<FreeBSDTargetInfo<MipsTargetInfo>>(Triple, Opts);
 329     case llvm::Triple::NetBSD:
 330       return std::make_unique<NetBSDTargetInfo<MipsTargetInfo>>(Triple, Opts);
 331     case llvm::Triple::OpenBSD:
 332       return std::make_unique<OpenBSDTargetInfo<MipsTargetInfo>>(Triple, Opts);
 333     default:
 334       return std::make_unique<MipsTargetInfo>(Triple, Opts);
 335     }
 336
 337   case llvm::Triple::m68k:
 338     switch (os) {
 339     case llvm::Triple::Linux:
 340       return std::make_unique<LinuxTargetInfo<M68kTargetInfo>>(Triple, Opts);
 341     case llvm::Triple::NetBSD:
 342       return std::make_unique<NetBSDTargetInfo<M68kTargetInfo>>(Triple, Opts);
 343     default:
 344       return std::make_unique<M68kTargetInfo>(Triple, Opts);
 345     }
 346
 347   case llvm::Triple::le32:
 348     switch (os) {
 349     case llvm::Triple::NaCl:
 350       return std::make_unique<NaClTargetInfo<PNaClTargetInfo>>(Triple, Opts);
 351     default:
 352       return nullptr;
 353     }
 354
 355   case llvm::Triple::le64:
 356     return std::make_unique<Le64TargetInfo>(Triple, Opts);
 357
 358   case llvm::Triple::ppc:
 359     switch (os) {
 360     case llvm::Triple::Linux:
 361       return std::make_unique<LinuxTargetInfo<PPC32TargetInfo>>(Triple, Opts);
 362     case llvm::Triple::FreeBSD:
 363       return std::make_unique<FreeBSDTargetInfo<PPC32TargetInfo>>(Triple, Opts);
 364     case llvm::Triple::NetBSD:
 365       return std::make_unique<NetBSDTargetInfo<PPC32TargetInfo>>(Triple, Opts);
 366     case llvm::Triple::OpenBSD:
 367       return std::make_unique<OpenBSDTargetInfo<PPC32TargetInfo>>(Triple, Opts);
 368     case llvm::Triple::RTEMS:
 369       return std::make_unique<RTEMSTargetInfo<PPC32TargetInfo>>(Triple, Opts);
 370     case llvm::Triple::AIX:
 371       return std::make_unique<AIXPPC32TargetInfo>(Triple, Opts);
 372     default:
 373       return std::make_unique<PPC32TargetInfo>(Triple, Opts);
 374     }
 375
 376   case llvm::Triple::ppcle:
 377     switch (os) {
 378     case llvm::Triple::Linux:
 379       return std::make_unique<LinuxTargetInfo<PPC32TargetInfo>>(Triple, Opts);
 380     case llvm::Triple::FreeBSD:
 381       return std::make_unique<FreeBSDTargetInfo<PPC32TargetInfo>>(Triple, Opts);
 382     default:
 383       return std::make_unique<PPC32TargetInfo>(Triple, Opts);
 384     }
 385
 386   case llvm::Triple::ppc64:
 387     switch (os) {
 388     case llvm::Triple::Linux:
 389       return std::make_unique<LinuxTargetInfo<PPC64TargetInfo>>(Triple, Opts);
 390     case llvm::Triple::Lv2:
 391       return std::make_unique<PS3PPUTargetInfo<PPC64TargetInfo>>(Triple, Opts);
 392     case llvm::Triple::FreeBSD:
 393       return std::make_unique<FreeBSDTargetInfo<PPC64TargetInfo>>(Triple, Opts);
 394     case llvm::Triple::NetBSD:
 395       return std::make_unique<NetBSDTargetInfo<PPC64TargetInfo>>(Triple, Opts);
 396     case llvm::Triple::OpenBSD:
 397       return std::make_unique<OpenBSDTargetInfo<PPC64TargetInfo>>(Triple, Opts);
 398     case llvm::Triple::AIX:
 399       return std::make_unique<AIXPPC64TargetInfo>(Triple, Opts);
 400     default:
 401       return std::make_unique<PPC64TargetInfo>(Triple, Opts);
 402     }
 403
 404   case llvm::Triple::ppc64le:
 405     switch (os) {
 406     case llvm::Triple::Linux:
 407       return std::make_unique<LinuxTargetInfo<PPC64TargetInfo>>(Triple, Opts);
 408     case llvm::Triple::FreeBSD:
 409       return std::make_unique<FreeBSDTargetInfo<PPC64TargetInfo>>(Triple, Opts);
 410     case llvm::Triple::NetBSD:
 411       return std::make_unique<NetBSDTargetInfo<PPC64TargetInfo>>(Triple, Opts);
 412     case llvm::Triple::OpenBSD:
 413       return std::make_unique<OpenBSDTargetInfo<PPC64TargetInfo>>(Triple, Opts);
 414     default:
 415       return std::make_unique<PPC64TargetInfo>(Triple, Opts);
 416     }
 417
 418   case llvm::Triple::nvptx:
 419     return std::make_unique<NVPTXTargetInfo>(Triple, Opts,
 420                                              /*TargetPointerWidth=*/32);
 421   case llvm::Triple::nvptx64:
 422     return std::make_unique<NVPTXTargetInfo>(Triple, Opts,
 423                                              /*TargetPointerWidth=*/64);
 424
 425   case llvm::Triple::amdgcn:
 426   case llvm::Triple::r600:
 427     return std::make_unique<AMDGPUTargetInfo>(Triple, Opts);
 428
 429   case llvm::Triple::riscv32:
 430     switch (os) {
 431     case llvm::Triple::NetBSD:
 432       return std::make_unique<NetBSDTargetInfo<RISCV32TargetInfo>>(Triple,
 433                                                                    Opts);
 434     case llvm::Triple::Linux:
 435       return std::make_unique<LinuxTargetInfo<RISCV32TargetInfo>>(Triple, Opts);
 436     default:
 437       return std::make_unique<RISCV32TargetInfo>(Triple, Opts);
 438     }
 439
 440   case llvm::Triple::riscv64:
 441     switch (os) {
 442     case llvm::Triple::FreeBSD:
 443       return std::make_unique<FreeBSDTargetInfo<RISCV64TargetInfo>>(Triple,
 444                                                                     Opts);
 445     case llvm::Triple::NetBSD:
 446       return std::make_unique<NetBSDTargetInfo<RISCV64TargetInfo>>(Triple,
 447                                                                    Opts);
 448     case llvm::Triple::OpenBSD:
 449       return std::make_unique<OpenBSDTargetInfo<RISCV64TargetInfo>>(Triple,
 450                                                                     Opts);
 451     case llvm::Triple::Fuchsia:
 452       return std::make_unique<FuchsiaTargetInfo<RISCV64TargetInfo>>(Triple,
 453                                                                     Opts);
 454     case llvm::Triple::Haiku:
 455       return std::make_unique<HaikuTargetInfo<RISCV64TargetInfo>>(Triple,
 456                                                                   Opts);
 457     case llvm::Triple::Linux:
 458       switch (Triple.getEnvironment()) {
 459       default:
 460         return std::make_unique<LinuxTargetInfo<RISCV64TargetInfo>>(Triple,
 461                                                                     Opts);
 462       case llvm::Triple::OpenHOS:
 463         return std::make_unique<OHOSTargetInfo<RISCV64TargetInfo>>(Triple,
 464                                                                    Opts);
 465       }
 466     default:
 467       return std::make_unique<RISCV64TargetInfo>(Triple, Opts);
 468     }
 469
 470   case llvm::Triple::sparc:
 471     switch (os) {
 472     case llvm::Triple::Linux:
 473       return std::make_unique<LinuxTargetInfo<SparcV8TargetInfo>>(Triple, Opts);
 474     case llvm::Triple::Solaris:
 475       return std::make_unique<SolarisTargetInfo<SparcV8TargetInfo>>(Triple,
 476                                                                     Opts);
 477     case llvm::Triple::NetBSD:
 478       return std::make_unique<NetBSDTargetInfo<SparcV8TargetInfo>>(Triple,
 479                                                                    Opts);
 480     case llvm::Triple::RTEMS:
 481       return std::make_unique<RTEMSTargetInfo<SparcV8TargetInfo>>(Triple, Opts);
 482     default:
 483       return std::make_unique<SparcV8TargetInfo>(Triple, Opts);
 484     }
 485
 486   case llvm::Triple::sparcel:
 487     switch (os) {
 488     case llvm::Triple::Linux:
 489       return std::make_unique<LinuxTargetInfo<SparcV8elTargetInfo>>(Triple,
 490                                                                     Opts);
 491     case llvm::Triple::RTEMS:
 492       return std::make_unique<RTEMSTargetInfo<SparcV8elTargetInfo>>(Triple,
 493                                                                     Opts);
 494     default:
 495       return std::make_unique<SparcV8elTargetInfo>(Triple, Opts);
 496     }
 497
 498   case llvm::Triple::sparcv9:
 499     switch (os) {
 500     case llvm::Triple::Linux:
 501       return std::make_unique<LinuxTargetInfo<SparcV9TargetInfo>>(Triple, Opts);
 502     case llvm::Triple::Solaris:
 503       return std::make_unique<SolarisTargetInfo<SparcV9TargetInfo>>(Triple,
 504                                                                     Opts);
 505     case llvm::Triple::NetBSD:
 506       return std::make_unique<NetBSDTargetInfo<SparcV9TargetInfo>>(Triple,
 507                                                                    Opts);
 508     case llvm::Triple::OpenBSD:
 509       return std::make_unique<OpenBSDTargetInfo<SparcV9TargetInfo>>(Triple,
 510                                                                     Opts);
 511     case llvm::Triple::FreeBSD:
 512       return std::make_unique<FreeBSDTargetInfo<SparcV9TargetInfo>>(Triple,
 513                                                                     Opts);
 514     default:
 515       return std::make_unique<SparcV9TargetInfo>(Triple, Opts);
 516     }
 517
 518   case llvm::Triple::systemz:
 519     switch (os) {
 520     case llvm::Triple::Linux:
 521       return std::make_unique<LinuxTargetInfo<SystemZTargetInfo>>(Triple, Opts);
 522     case llvm::Triple::ZOS:
 523       return std::make_unique<ZOSTargetInfo<SystemZTargetInfo>>(Triple, Opts);
 524     default:
 525       return std::make_unique<SystemZTargetInfo>(Triple, Opts);
 526     }
 527
 528   case llvm::Triple::tce:
 529     return std::make_unique<TCETargetInfo>(Triple, Opts);
 530
 531   case llvm::Triple::tcele:
 532     return std::make_unique<TCELETargetInfo>(Triple, Opts);
 533
 534   case llvm::Triple::x86:
 535     if (Triple.isOSDarwin())
 536       return std::make_unique<DarwinI386TargetInfo>(Triple, Opts);
 537
 538     switch (os) {
 539     case llvm::Triple::Linux: {
 540       switch (Triple.getEnvironment()) {
 541       default:
 542         return std::make_unique<LinuxTargetInfo<X86_32TargetInfo>>(Triple,
 543                                                                    Opts);
 544       case llvm::Triple::Android:
 545         return std::make_unique<AndroidX86_32TargetInfo>(Triple, Opts);
 546       }
 547     }
 548     case llvm::Triple::DragonFly:
 549       return std::make_unique<DragonFlyBSDTargetInfo<X86_32TargetInfo>>(Triple,
 550                                                                         Opts);
 551     case llvm::Triple::NetBSD:
 552       return std::make_unique<NetBSDI386TargetInfo>(Triple, Opts);
 553     case llvm::Triple::OpenBSD:
 554       return std::make_unique<OpenBSDI386TargetInfo>(Triple, Opts);
 555     case llvm::Triple::FreeBSD:
 556       return std::make_unique<FreeBSDTargetInfo<X86_32TargetInfo>>(Triple,
 557                                                                    Opts);
 558     case llvm::Triple::Fuchsia:
 559       return std::make_unique<FuchsiaTargetInfo<X86_32TargetInfo>>(Triple,
 560                                                                    Opts);
 561     case llvm::Triple::KFreeBSD:
 562       return std::make_unique<KFreeBSDTargetInfo<X86_32TargetInfo>>(Triple,
 563                                                                     Opts);
 564     case llvm::Triple::Solaris:
 565       return std::make_unique<SolarisTargetInfo<X86_32TargetInfo>>(Triple,
 566                                                                    Opts);
 567     case llvm::Triple::Win32: {
 568       switch (Triple.getEnvironment()) {
 569       case llvm::Triple::Cygnus:
 570         return std::make_unique<CygwinX86_32TargetInfo>(Triple, Opts);
 571       case llvm::Triple::GNU:
 572         return std::make_unique<MinGWX86_32TargetInfo>(Triple, Opts);
 573       case llvm::Triple::Itanium:
 574       case llvm::Triple::MSVC:
 575       default: // Assume MSVC for unknown environments
 576         return std::make_unique<MicrosoftX86_32TargetInfo>(Triple, Opts);
 577       }
 578     }
 579     case llvm::Triple::Haiku:
 580       return std::make_unique<HaikuX86_32TargetInfo>(Triple, Opts);
 581     case llvm::Triple::RTEMS:
 582       return std::make_unique<RTEMSX86_32TargetInfo>(Triple, Opts);
 583     case llvm::Triple::NaCl:
 584       return std::make_unique<NaClTargetInfo<X86_32TargetInfo>>(Triple, Opts);
 585     case llvm::Triple::ELFIAMCU:
 586       return std::make_unique<MCUX86_32TargetInfo>(Triple, Opts);
 587     case llvm::Triple::Hurd:
 588       return std::make_unique<HurdTargetInfo<X86_32TargetInfo>>(Triple, Opts);
 589     default:
 590       return std::make_unique<X86_32TargetInfo>(Triple, Opts);
 591     }
 592
 593   case llvm::Triple::x86_64:
 594     if (Triple.isOSDarwin() || Triple.isOSBinFormatMachO())
 595       return std::make_unique<DarwinX86_64TargetInfo>(Triple, Opts);
 596
 597     switch (os) {
 598     case llvm::Triple::Linux: {
 599       switch (Triple.getEnvironment()) {
 600       default:
 601         return std::make_unique<LinuxTargetInfo<X86_64TargetInfo>>(Triple,
 602                                                                    Opts);
 603       case llvm::Triple::Android:
 604         return std::make_unique<AndroidX86_64TargetInfo>(Triple, Opts);
 605       case llvm::Triple::OpenHOS:
 606         return std::make_unique<OHOSX86_64TargetInfo>(Triple, Opts);
 607       }
 608     }
 609     case llvm::Triple::DragonFly:
 610       return std::make_unique<DragonFlyBSDTargetInfo<X86_64TargetInfo>>(Triple,
 611                                                                         Opts);
 612     case llvm::Triple::NetBSD:
 613       return std::make_unique<NetBSDTargetInfo<X86_64TargetInfo>>(Triple, Opts);
 614     case llvm::Triple::OpenBSD:
 615       return std::make_unique<OpenBSDX86_64TargetInfo>(Triple, Opts);
 616     case llvm::Triple::FreeBSD:
 617       return std::make_unique<FreeBSDTargetInfo<X86_64TargetInfo>>(Triple,
 618                                                                    Opts);
 619     case llvm::Triple::Fuchsia:
 620       return std::make_unique<FuchsiaTargetInfo<X86_64TargetInfo>>(Triple,
 621                                                                    Opts);
 622     case llvm::Triple::KFreeBSD:
 623       return std::make_unique<KFreeBSDTargetInfo<X86_64TargetInfo>>(Triple,
 624                                                                     Opts);
 625     case llvm::Triple::Solaris:
 626       return std::make_unique<SolarisTargetInfo<X86_64TargetInfo>>(Triple,
 627                                                                    Opts);
 628     case llvm::Triple::Win32: {
 629       switch (Triple.getEnvironment()) {
 630       case llvm::Triple::Cygnus:
 631         return std::make_unique<CygwinX86_64TargetInfo>(Triple, Opts);
 632       case llvm::Triple::GNU:
 633         return std::make_unique<MinGWX86_64TargetInfo>(Triple, Opts);
 634       case llvm::Triple::MSVC:
 635       default: // Assume MSVC for unknown environments
 636         return std::make_unique<MicrosoftX86_64TargetInfo>(Triple, Opts);
 637       }
 638     }
 639     case llvm::Triple::Haiku:
 640       return std::make_unique<HaikuTargetInfo<X86_64TargetInfo>>(Triple, Opts);
 641     case llvm::Triple::NaCl:
 642       return std::make_unique<NaClTargetInfo<X86_64TargetInfo>>(Triple, Opts);
 643     case llvm::Triple::PS4:
 644       return std::make_unique<PS4OSTargetInfo<X86_64TargetInfo>>(Triple, Opts);
 645     case llvm::Triple::PS5:
 646       return std::make_unique<PS5OSTargetInfo<X86_64TargetInfo>>(Triple, Opts);
 647     case llvm::Triple::Hurd:
 648       return std::make_unique<HurdTargetInfo<X86_64TargetInfo>>(Triple, Opts);
 649     default:
 650       return std::make_unique<X86_64TargetInfo>(Triple, Opts);
 651     }
 652
 653   case llvm::Triple::spir: {
 654     if (os != llvm::Triple::UnknownOS ||
 655         Triple.getEnvironment() != llvm::Triple::UnknownEnvironment)
 656       return nullptr;
 657     return std::make_unique<SPIR32TargetInfo>(Triple, Opts);
 658   }
 659   case llvm::Triple::spir64: {
 660     if (os != llvm::Triple::UnknownOS ||
 661         Triple.getEnvironment() != llvm::Triple::UnknownEnvironment)
 662       return nullptr;
 663     return std::make_unique<SPIR64TargetInfo>(Triple, Opts);
 664   }
 665   case llvm::Triple::spirv: {
 666     return std::make_unique<SPIRVTargetInfo>(Triple, Opts);
 667   }
 668   case llvm::Triple::spirv32: {
 669     if (os != llvm::Triple::UnknownOS ||
 670         Triple.getEnvironment() != llvm::Triple::UnknownEnvironment)
 671       return nullptr;
 672     return std::make_unique<SPIRV32TargetInfo>(Triple, Opts);
 673   }
 674   case llvm::Triple::spirv64: {
 675     if (os != llvm::Triple::UnknownOS ||
 676         Triple.getEnvironment() != llvm::Triple::UnknownEnvironment)
 677       return nullptr;
 678     return std::make_unique<SPIRV64TargetInfo>(Triple, Opts);
 679   }
 680   case llvm::Triple::wasm32:
 681     if (Triple.getSubArch() != llvm::Triple::NoSubArch ||
 682         Triple.getVendor() != llvm::Triple::UnknownVendor ||
 683         !Triple.isOSBinFormatWasm())
 684       return nullptr;
 685     switch (os) {
 686       case llvm::Triple::WASI:
 687       return std::make_unique<WASITargetInfo<WebAssembly32TargetInfo>>(Triple,
 688                                                                        Opts);
 689       case llvm::Triple::Emscripten:
 690       return std::make_unique<EmscriptenTargetInfo<WebAssembly32TargetInfo>>(
 691           Triple, Opts);
 692       case llvm::Triple::UnknownOS:
 693       return std::make_unique<WebAssemblyOSTargetInfo<WebAssembly32TargetInfo>>(
 694           Triple, Opts);
 695       default:
 696         return nullptr;
 697     }
 698   case llvm::Triple::wasm64:
 699     if (Triple.getSubArch() != llvm::Triple::NoSubArch ||
 700         Triple.getVendor() != llvm::Triple::UnknownVendor ||
 701         !Triple.isOSBinFormatWasm())
 702       return nullptr;
 703     switch (os) {
 704       case llvm::Triple::WASI:
 705       return std::make_unique<WASITargetInfo<WebAssembly64TargetInfo>>(Triple,
 706                                                                        Opts);
 707       case llvm::Triple::Emscripten:
 708       return std::make_unique<EmscriptenTargetInfo<WebAssembly64TargetInfo>>(
 709           Triple, Opts);
 710       case llvm::Triple::UnknownOS:
 711       return std::make_unique<WebAssemblyOSTargetInfo<WebAssembly64TargetInfo>>(
 712           Triple, Opts);
 713       default:
 714         return nullptr;
 715     }
 716
 717   case llvm::Triple::dxil:
 718     return std::make_unique<DirectXTargetInfo>(Triple, Opts);
 719   case llvm::Triple::renderscript32:
 720     return std::make_unique<LinuxTargetInfo<RenderScript32TargetInfo>>(Triple,
 721                                                                        Opts);
 722   case llvm::Triple::renderscript64:
 723     return std::make_unique<LinuxTargetInfo<RenderScript64TargetInfo>>(Triple,
 724                                                                        Opts);
 725
 726   case llvm::Triple::ve:
 727     return std::make_unique<LinuxTargetInfo<VETargetInfo>>(Triple, Opts);
 728
 729   case llvm::Triple::csky:
 730     switch (os) {
 731     case llvm::Triple::Linux:
 732         return std::make_unique<LinuxTargetInfo<CSKYTargetInfo>>(Triple, Opts);
 733     default:
 734         return std::make_unique<CSKYTargetInfo>(Triple, Opts);
 735     }
 736   case llvm::Triple::loongarch32:
 737     switch (os) {
 738     case llvm::Triple::Linux:
 739         return std::make_unique<LinuxTargetInfo<LoongArch32TargetInfo>>(Triple,
 740                                                                         Opts);
 741     default:
 742         return std::make_unique<LoongArch32TargetInfo>(Triple, Opts);
 743     }
 744   case llvm::Triple::loongarch64:
 745     switch (os) {
 746     case llvm::Triple::Linux:
 747         return std::make_unique<LinuxTargetInfo<LoongArch64TargetInfo>>(Triple,
 748                                                                         Opts);
 749     default:
 750         return std::make_unique<LoongArch64TargetInfo>(Triple, Opts);
 751     }
 752   }
 753 }
 754 } // namespace targets
 755 } // namespace clang
 756
 757 using namespace clang::targets;
 758 /// CreateTargetInfo - Return the target info object for the specified target
 759 /// options.
 760 TargetInfo *
 761 TargetInfo::CreateTargetInfo(DiagnosticsEngine &Diags,
 762                              const std::shared_ptr<TargetOptions> &Opts) {
 763   llvm::Triple Triple(Opts->Triple);
 764
 765   // Construct the target
 766   std::unique_ptr<TargetInfo> Target = AllocateTarget(Triple, *Opts);
 767   if (!Target) {
 768     Diags.Report(diag::err_target_unknown_triple) << Triple.str();
 769     return nullptr;
 770   }
 771   Target->TargetOpts = Opts;
 772
 773   // Set the target CPU if specified.
 774   if (!Opts->CPU.empty() && !Target->setCPU(Opts->CPU)) {
 775     Diags.Report(diag::err_target_unknown_cpu) << Opts->CPU;
 776     SmallVector<StringRef, 32> ValidList;
 777     Target->fillValidCPUList(ValidList);
 778     if (!ValidList.empty())
 779       Diags.Report(diag::note_valid_options) << llvm::join(ValidList, ", ");
 780     return nullptr;
 781   }
 782
 783   // Check the TuneCPU name if specified.
 784   if (!Opts->TuneCPU.empty() &&
 785       !Target->isValidTuneCPUName(Opts->TuneCPU)) {
 786     Diags.Report(diag::err_target_unknown_cpu) << Opts->TuneCPU;
 787     SmallVector<StringRef, 32> ValidList;
 788     Target->fillValidTuneCPUList(ValidList);
 789     if (!ValidList.empty())
 790       Diags.Report(diag::note_valid_options) << llvm::join(ValidList, ", ");
 791     return nullptr;
 792   }
 793
 794   // Set the target ABI if specified.
 795   if (!Opts->ABI.empty() && !Target->setABI(Opts->ABI)) {
 796     Diags.Report(diag::err_target_unknown_abi) << Opts->ABI;
 797     return nullptr;
 798   }
 799
 800   // Set the fp math unit.
 801   if (!Opts->FPMath.empty() && !Target->setFPMath(Opts->FPMath)) {
 802     Diags.Report(diag::err_target_unknown_fpmath) << Opts->FPMath;
 803     return nullptr;
 804   }
 805
 806   // Compute the default target features, we need the target to handle this
 807   // because features may have dependencies on one another.
 808   llvm::erase_if(Opts->FeaturesAsWritten, [&](StringRef Name) {
 809     if (Target->isReadOnlyFeature(Name.substr(1))) {
 810       Diags.Report(diag::warn_fe_backend_readonly_feature_flag) << Name;
 811       return true;
 812     }
 813     return false;
 814   });
 815   if (!Target->initFeatureMap(Opts->FeatureMap, Diags, Opts->CPU,
 816                               Opts->FeaturesAsWritten))
 817     return nullptr;
 818
 819   // Add the features to the compile options.
 820   Opts->Features.clear();
 821   for (const auto &F : Opts->FeatureMap)
 822     Opts->Features.push_back((F.getValue() ? "+" : "-") + F.getKey().str());
 823   // Sort here, so we handle the features in a predictable order. (This matters
 824   // when we're dealing with features that overlap.)
 825   llvm::sort(Opts->Features);
 826
 827   if (!Target->handleTargetFeatures(Opts->Features, Diags))
 828     return nullptr;
 829
 830   Target->setSupportedOpenCLOpts();
 831   Target->setCommandLineOpenCLOpts();
 832   Target->setMaxAtomicWidth();
 833
 834   if (!Opts->DarwinTargetVariantTriple.empty())
 835     Target->DarwinTargetVariantTriple =
 836         llvm::Triple(Opts->DarwinTargetVariantTriple);
 837
 838   if (!Target->validateTarget(Diags))
 839     return nullptr;
 840
 841   Target->CheckFixedPointBits();
 842
 843   return Target.release();
 844 }
 845 /// validateOpenCLTarget  - Check that OpenCL target has valid
 846 /// options setting based on OpenCL version.
 847 bool TargetInfo::validateOpenCLTarget(const LangOptions &Opts,
 848                                       DiagnosticsEngine &Diags) const {
 849   const llvm::StringMap<bool> &OpenCLFeaturesMap = getSupportedOpenCLOpts();
 850
 851   auto diagnoseNotSupportedCore = [&](llvm::StringRef Name, auto... OptArgs) {
 852     if (OpenCLOptions::isOpenCLOptionCoreIn(Opts, OptArgs...) &&
 853         !hasFeatureEnabled(OpenCLFeaturesMap, Name))
 854       Diags.Report(diag::warn_opencl_unsupported_core_feature)
 855           << Name << Opts.OpenCLCPlusPlus
 856           << Opts.getOpenCLVersionTuple().getAsString();
 857   };
 858 #define OPENCL_GENERIC_EXTENSION(Ext, ...)                                     \
 859   diagnoseNotSupportedCore(#Ext, __VA_ARGS__);
 860 #include "clang/Basic/OpenCLExtensions.def"
 861
 862   // Validate that feature macros are set properly for OpenCL C 3.0.
 863   // In other cases assume that target is always valid.
 864   if (Opts.getOpenCLCompatibleVersion() < 300)
 865     return true;
 866
 867   return OpenCLOptions::diagnoseUnsupportedFeatureDependencies(*this, Diags) &&
 868          OpenCLOptions::diagnoseFeatureExtensionDifferences(*this, Diags);
 869 }