1 //===- CompilerInvocation.cpp ---------------------------------------------===// 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 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/Diagnostic.h" 16 #include "clang/Basic/DiagnosticDriver.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/TextDiagnosticBuffer.h" 41 #include "clang/Frontend/Utils.h" 42 #include "clang/Lex/HeaderSearchOptions.h" 43 #include "clang/Lex/PreprocessorOptions.h" 44 #include "clang/Sema/CodeCompleteOptions.h" 45 #include "clang/Serialization/ASTBitCodes.h" 46 #include "clang/Serialization/ModuleFileExtension.h" 47 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 48 #include "llvm/ADT/APInt.h" 49 #include "llvm/ADT/ArrayRef.h" 50 #include "llvm/ADT/CachedHashString.h" 51 #include "llvm/ADT/FloatingPointMode.h" 52 #include "llvm/ADT/Hashing.h" 53 #include "llvm/ADT/STLExtras.h" 54 #include "llvm/ADT/SmallString.h" 55 #include "llvm/ADT/SmallVector.h" 56 #include "llvm/ADT/StringRef.h" 57 #include "llvm/ADT/StringSwitch.h" 58 #include "llvm/ADT/Twine.h" 59 #include "llvm/Config/llvm-config.h" 60 #include "llvm/Frontend/Debug/Options.h" 61 #include "llvm/IR/DebugInfoMetadata.h" 62 #include "llvm/Linker/Linker.h" 63 #include "llvm/MC/MCTargetOptions.h" 64 #include "llvm/Option/Arg.h" 65 #include "llvm/Option/ArgList.h" 66 #include "llvm/Option/OptSpecifier.h" 67 #include "llvm/Option/OptTable.h" 68 #include "llvm/Option/Option.h" 69 #include "llvm/ProfileData/InstrProfReader.h" 70 #include "llvm/Remarks/HotnessThresholdParser.h" 71 #include "llvm/Support/CodeGen.h" 72 #include "llvm/Support/Compiler.h" 73 #include "llvm/Support/Error.h" 74 #include "llvm/Support/ErrorHandling.h" 75 #include "llvm/Support/ErrorOr.h" 76 #include "llvm/Support/FileSystem.h" 77 #include "llvm/Support/HashBuilder.h" 78 #include "llvm/Support/MathExtras.h" 79 #include "llvm/Support/MemoryBuffer.h" 80 #include "llvm/Support/Path.h" 81 #include "llvm/Support/Process.h" 82 #include "llvm/Support/Regex.h" 83 #include "llvm/Support/VersionTuple.h" 84 #include "llvm/Support/VirtualFileSystem.h" 85 #include "llvm/Support/raw_ostream.h" 86 #include "llvm/Target/TargetOptions.h" 87 #include "llvm/TargetParser/Host.h" 88 #include "llvm/TargetParser/Triple.h" 89 #include <algorithm> 90 #include <atomic> 91 #include <cassert> 92 #include <cstddef> 93 #include <cstring> 94 #include <ctime> 95 #include <fstream> 96 #include <limits> 97 #include <memory> 98 #include <optional> 99 #include <string> 100 #include <tuple> 101 #include <type_traits> 102 #include <utility> 103 #include <vector> 104 105 using namespace clang; 106 using namespace driver; 107 using namespace options; 108 using namespace llvm::opt; 109 110 //===----------------------------------------------------------------------===// 111 // Helpers. 112 //===----------------------------------------------------------------------===// 113 114 // Parse misexpect tolerance argument value. 115 // Valid option values are integers in the range [0, 100) 116 static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) { 117 uint32_t Val; 118 if (Arg.getAsInteger(10, Val)) 119 return llvm::createStringError(llvm::inconvertibleErrorCode(), 120 "Not an integer: %s", Arg.data()); 121 return Val; 122 } 123 124 //===----------------------------------------------------------------------===// 125 // Initialization. 126 //===----------------------------------------------------------------------===// 127 128 namespace { 129 template <class T> std::shared_ptr<T> make_shared_copy(const T &X) { 130 return std::make_shared<T>(X); 131 } 132 133 template <class T> 134 llvm::IntrusiveRefCntPtr<T> makeIntrusiveRefCntCopy(const T &X) { 135 return llvm::makeIntrusiveRefCnt<T>(X); 136 } 137 } // namespace 138 139 CompilerInvocationBase::CompilerInvocationBase() 140 : LangOpts(std::make_shared<LangOptions>()), 141 TargetOpts(std::make_shared<TargetOptions>()), 142 DiagnosticOpts(llvm::makeIntrusiveRefCnt<DiagnosticOptions>()), 143 HSOpts(std::make_shared<HeaderSearchOptions>()), 144 PPOpts(std::make_shared<PreprocessorOptions>()), 145 AnalyzerOpts(llvm::makeIntrusiveRefCnt<AnalyzerOptions>()), 146 MigratorOpts(std::make_shared<MigratorOptions>()), 147 APINotesOpts(std::make_shared<APINotesOptions>()), 148 CodeGenOpts(std::make_shared<CodeGenOptions>()), 149 FSOpts(std::make_shared<FileSystemOptions>()), 150 FrontendOpts(std::make_shared<FrontendOptions>()), 151 DependencyOutputOpts(std::make_shared<DependencyOutputOptions>()), 152 PreprocessorOutputOpts(std::make_shared<PreprocessorOutputOptions>()) {} 153 154 CompilerInvocationBase & 155 CompilerInvocationBase::deep_copy_assign(const CompilerInvocationBase &X) { 156 if (this != &X) { 157 LangOpts = make_shared_copy(X.getLangOpts()); 158 TargetOpts = make_shared_copy(X.getTargetOpts()); 159 DiagnosticOpts = makeIntrusiveRefCntCopy(X.getDiagnosticOpts()); 160 HSOpts = make_shared_copy(X.getHeaderSearchOpts()); 161 PPOpts = make_shared_copy(X.getPreprocessorOpts()); 162 AnalyzerOpts = makeIntrusiveRefCntCopy(X.getAnalyzerOpts()); 163 MigratorOpts = make_shared_copy(X.getMigratorOpts()); 164 APINotesOpts = make_shared_copy(X.getAPINotesOpts()); 165 CodeGenOpts = make_shared_copy(X.getCodeGenOpts()); 166 FSOpts = make_shared_copy(X.getFileSystemOpts()); 167 FrontendOpts = make_shared_copy(X.getFrontendOpts()); 168 DependencyOutputOpts = make_shared_copy(X.getDependencyOutputOpts()); 169 PreprocessorOutputOpts = make_shared_copy(X.getPreprocessorOutputOpts()); 170 } 171 return *this; 172 } 173 174 CompilerInvocationBase & 175 CompilerInvocationBase::shallow_copy_assign(const CompilerInvocationBase &X) { 176 if (this != &X) { 177 LangOpts = X.LangOpts; 178 TargetOpts = X.TargetOpts; 179 DiagnosticOpts = X.DiagnosticOpts; 180 HSOpts = X.HSOpts; 181 PPOpts = X.PPOpts; 182 AnalyzerOpts = X.AnalyzerOpts; 183 MigratorOpts = X.MigratorOpts; 184 APINotesOpts = X.APINotesOpts; 185 CodeGenOpts = X.CodeGenOpts; 186 FSOpts = X.FSOpts; 187 FrontendOpts = X.FrontendOpts; 188 DependencyOutputOpts = X.DependencyOutputOpts; 189 PreprocessorOutputOpts = X.PreprocessorOutputOpts; 190 } 191 return *this; 192 } 193 194 CompilerInvocation::CompilerInvocation(const CowCompilerInvocation &X) 195 : CompilerInvocationBase(EmptyConstructor{}) { 196 CompilerInvocationBase::deep_copy_assign(X); 197 } 198 199 CompilerInvocation & 200 CompilerInvocation::operator=(const CowCompilerInvocation &X) { 201 CompilerInvocationBase::deep_copy_assign(X); 202 return *this; 203 } 204 205 namespace { 206 template <typename T> 207 T &ensureOwned(std::shared_ptr<T> &Storage) { 208 if (Storage.use_count() > 1) 209 Storage = std::make_shared<T>(*Storage); 210 return *Storage; 211 } 212 213 template <typename T> 214 T &ensureOwned(llvm::IntrusiveRefCntPtr<T> &Storage) { 215 if (Storage.useCount() > 1) 216 Storage = llvm::makeIntrusiveRefCnt<T>(*Storage); 217 return *Storage; 218 } 219 } // namespace 220 221 LangOptions &CowCompilerInvocation::getMutLangOpts() { 222 return ensureOwned(LangOpts); 223 } 224 225 TargetOptions &CowCompilerInvocation::getMutTargetOpts() { 226 return ensureOwned(TargetOpts); 227 } 228 229 DiagnosticOptions &CowCompilerInvocation::getMutDiagnosticOpts() { 230 return ensureOwned(DiagnosticOpts); 231 } 232 233 HeaderSearchOptions &CowCompilerInvocation::getMutHeaderSearchOpts() { 234 return ensureOwned(HSOpts); 235 } 236 237 PreprocessorOptions &CowCompilerInvocation::getMutPreprocessorOpts() { 238 return ensureOwned(PPOpts); 239 } 240 241 AnalyzerOptions &CowCompilerInvocation::getMutAnalyzerOpts() { 242 return ensureOwned(AnalyzerOpts); 243 } 244 245 MigratorOptions &CowCompilerInvocation::getMutMigratorOpts() { 246 return ensureOwned(MigratorOpts); 247 } 248 249 APINotesOptions &CowCompilerInvocation::getMutAPINotesOpts() { 250 return ensureOwned(APINotesOpts); 251 } 252 253 CodeGenOptions &CowCompilerInvocation::getMutCodeGenOpts() { 254 return ensureOwned(CodeGenOpts); 255 } 256 257 FileSystemOptions &CowCompilerInvocation::getMutFileSystemOpts() { 258 return ensureOwned(FSOpts); 259 } 260 261 FrontendOptions &CowCompilerInvocation::getMutFrontendOpts() { 262 return ensureOwned(FrontendOpts); 263 } 264 265 DependencyOutputOptions &CowCompilerInvocation::getMutDependencyOutputOpts() { 266 return ensureOwned(DependencyOutputOpts); 267 } 268 269 PreprocessorOutputOptions & 270 CowCompilerInvocation::getMutPreprocessorOutputOpts() { 271 return ensureOwned(PreprocessorOutputOpts); 272 } 273 274 //===----------------------------------------------------------------------===// 275 // Normalizers 276 //===----------------------------------------------------------------------===// 277 278 using ArgumentConsumer = CompilerInvocation::ArgumentConsumer; 279 280 #define SIMPLE_ENUM_VALUE_TABLE 281 #include "clang/Driver/Options.inc" 282 #undef SIMPLE_ENUM_VALUE_TABLE 283 284 static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 285 unsigned TableIndex, 286 const ArgList &Args, 287 DiagnosticsEngine &Diags) { 288 if (Args.hasArg(Opt)) 289 return true; 290 return std::nullopt; 291 } 292 293 static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, 294 unsigned, 295 const ArgList &Args, 296 DiagnosticsEngine &) { 297 if (Args.hasArg(Opt)) 298 return false; 299 return std::nullopt; 300 } 301 302 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 303 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 304 /// unnecessary template instantiations and just ignore it with a variadic 305 /// argument. 306 static void denormalizeSimpleFlag(ArgumentConsumer Consumer, 307 const Twine &Spelling, Option::OptionClass, 308 unsigned, /*T*/...) { 309 Consumer(Spelling); 310 } 311 312 template <typename T> static constexpr bool is_uint64_t_convertible() { 313 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 314 } 315 316 template <typename T, 317 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 318 static auto makeFlagToValueNormalizer(T Value) { 319 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 320 DiagnosticsEngine &) -> std::optional<T> { 321 if (Args.hasArg(Opt)) 322 return Value; 323 return std::nullopt; 324 }; 325 } 326 327 template <typename T, 328 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 329 static auto makeFlagToValueNormalizer(T Value) { 330 return makeFlagToValueNormalizer(uint64_t(Value)); 331 } 332 333 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 334 OptSpecifier OtherOpt) { 335 return [Value, OtherValue, 336 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args, 337 DiagnosticsEngine &) -> std::optional<bool> { 338 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 339 return A->getOption().matches(Opt) ? Value : OtherValue; 340 } 341 return std::nullopt; 342 }; 343 } 344 345 static auto makeBooleanOptionDenormalizer(bool Value) { 346 return [Value](ArgumentConsumer Consumer, const Twine &Spelling, 347 Option::OptionClass, unsigned, bool KeyPath) { 348 if (KeyPath == Value) 349 Consumer(Spelling); 350 }; 351 } 352 353 static void denormalizeStringImpl(ArgumentConsumer Consumer, 354 const Twine &Spelling, 355 Option::OptionClass OptClass, unsigned, 356 const Twine &Value) { 357 switch (OptClass) { 358 case Option::SeparateClass: 359 case Option::JoinedOrSeparateClass: 360 case Option::JoinedAndSeparateClass: 361 Consumer(Spelling); 362 Consumer(Value); 363 break; 364 case Option::JoinedClass: 365 case Option::CommaJoinedClass: 366 Consumer(Spelling + Value); 367 break; 368 default: 369 llvm_unreachable("Cannot denormalize an option with option class " 370 "incompatible with string denormalization."); 371 } 372 } 373 374 template <typename T> 375 static void denormalizeString(ArgumentConsumer Consumer, const Twine &Spelling, 376 Option::OptionClass OptClass, unsigned TableIndex, 377 T Value) { 378 denormalizeStringImpl(Consumer, Spelling, OptClass, TableIndex, Twine(Value)); 379 } 380 381 static std::optional<SimpleEnumValue> 382 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 383 for (int I = 0, E = Table.Size; I != E; ++I) 384 if (Name == Table.Table[I].Name) 385 return Table.Table[I]; 386 387 return std::nullopt; 388 } 389 390 static std::optional<SimpleEnumValue> 391 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 392 for (int I = 0, E = Table.Size; I != E; ++I) 393 if (Value == Table.Table[I].Value) 394 return Table.Table[I]; 395 396 return std::nullopt; 397 } 398 399 static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 400 unsigned TableIndex, 401 const ArgList &Args, 402 DiagnosticsEngine &Diags) { 403 assert(TableIndex < SimpleEnumValueTablesSize); 404 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 405 406 auto *Arg = Args.getLastArg(Opt); 407 if (!Arg) 408 return std::nullopt; 409 410 StringRef ArgValue = Arg->getValue(); 411 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 412 return MaybeEnumVal->Value; 413 414 Diags.Report(diag::err_drv_invalid_value) 415 << Arg->getAsString(Args) << ArgValue; 416 return std::nullopt; 417 } 418 419 static void denormalizeSimpleEnumImpl(ArgumentConsumer Consumer, 420 const Twine &Spelling, 421 Option::OptionClass OptClass, 422 unsigned TableIndex, unsigned Value) { 423 assert(TableIndex < SimpleEnumValueTablesSize); 424 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 425 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 426 denormalizeString(Consumer, Spelling, OptClass, TableIndex, 427 MaybeEnumVal->Name); 428 } else { 429 llvm_unreachable("The simple enum value was not correctly defined in " 430 "the tablegen option description"); 431 } 432 } 433 434 template <typename T> 435 static void denormalizeSimpleEnum(ArgumentConsumer Consumer, 436 const Twine &Spelling, 437 Option::OptionClass OptClass, 438 unsigned TableIndex, T Value) { 439 return denormalizeSimpleEnumImpl(Consumer, Spelling, OptClass, TableIndex, 440 static_cast<unsigned>(Value)); 441 } 442 443 static std::optional<std::string> normalizeString(OptSpecifier Opt, 444 int TableIndex, 445 const ArgList &Args, 446 DiagnosticsEngine &Diags) { 447 auto *Arg = Args.getLastArg(Opt); 448 if (!Arg) 449 return std::nullopt; 450 return std::string(Arg->getValue()); 451 } 452 453 template <typename IntTy> 454 static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 455 const ArgList &Args, 456 DiagnosticsEngine &Diags) { 457 auto *Arg = Args.getLastArg(Opt); 458 if (!Arg) 459 return std::nullopt; 460 IntTy Res; 461 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 462 Diags.Report(diag::err_drv_invalid_int_value) 463 << Arg->getAsString(Args) << Arg->getValue(); 464 return std::nullopt; 465 } 466 return Res; 467 } 468 469 static std::optional<std::vector<std::string>> 470 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 471 DiagnosticsEngine &) { 472 return Args.getAllArgValues(Opt); 473 } 474 475 static void denormalizeStringVector(ArgumentConsumer Consumer, 476 const Twine &Spelling, 477 Option::OptionClass OptClass, 478 unsigned TableIndex, 479 const std::vector<std::string> &Values) { 480 switch (OptClass) { 481 case Option::CommaJoinedClass: { 482 std::string CommaJoinedValue; 483 if (!Values.empty()) { 484 CommaJoinedValue.append(Values.front()); 485 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 486 CommaJoinedValue.append(","); 487 CommaJoinedValue.append(Value); 488 } 489 } 490 denormalizeString(Consumer, Spelling, Option::OptionClass::JoinedClass, 491 TableIndex, CommaJoinedValue); 492 break; 493 } 494 case Option::JoinedClass: 495 case Option::SeparateClass: 496 case Option::JoinedOrSeparateClass: 497 for (const std::string &Value : Values) 498 denormalizeString(Consumer, Spelling, OptClass, TableIndex, Value); 499 break; 500 default: 501 llvm_unreachable("Cannot denormalize an option with option class " 502 "incompatible with string vector denormalization."); 503 } 504 } 505 506 static std::optional<std::string> normalizeTriple(OptSpecifier Opt, 507 int TableIndex, 508 const ArgList &Args, 509 DiagnosticsEngine &Diags) { 510 auto *Arg = Args.getLastArg(Opt); 511 if (!Arg) 512 return std::nullopt; 513 return llvm::Triple::normalize(Arg->getValue()); 514 } 515 516 template <typename T, typename U> 517 static T mergeForwardValue(T KeyPath, U Value) { 518 return static_cast<T>(Value); 519 } 520 521 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 522 return KeyPath | Value; 523 } 524 525 template <typename T> static T extractForwardValue(T KeyPath) { 526 return KeyPath; 527 } 528 529 template <typename T, typename U, U Value> 530 static T extractMaskValue(T KeyPath) { 531 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 532 } 533 534 #define PARSE_OPTION_WITH_MARSHALLING( \ 535 ARGS, DIAGS, PREFIX_TYPE, SPELLING, ID, KIND, GROUP, ALIAS, ALIASARGS, \ 536 FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, METAVAR, VALUES, \ 537 SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, \ 538 IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 539 if ((VISIBILITY) & options::CC1Option) { \ 540 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 541 if (IMPLIED_CHECK) \ 542 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 543 if (SHOULD_PARSE) \ 544 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 545 KEYPATH = \ 546 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 547 } 548 549 // Capture the extracted value as a lambda argument to avoid potential issues 550 // with lifetime extension of the reference. 551 #define GENERATE_OPTION_WITH_MARSHALLING( \ 552 CONSUMER, PREFIX_TYPE, SPELLING, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, \ 553 VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, METAVAR, VALUES, \ 554 SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, \ 555 IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 556 if ((VISIBILITY) & options::CC1Option) { \ 557 [&](const auto &Extracted) { \ 558 if (ALWAYS_EMIT || \ 559 (Extracted != \ 560 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 561 : (DEFAULT_VALUE)))) \ 562 DENORMALIZER(CONSUMER, SPELLING, Option::KIND##Class, TABLE_INDEX, \ 563 Extracted); \ 564 }(EXTRACTOR(KEYPATH)); \ 565 } 566 567 static StringRef GetInputKindName(InputKind IK); 568 569 static bool FixupInvocation(CompilerInvocation &Invocation, 570 DiagnosticsEngine &Diags, const ArgList &Args, 571 InputKind IK) { 572 unsigned NumErrorsBefore = Diags.getNumErrors(); 573 574 LangOptions &LangOpts = Invocation.getLangOpts(); 575 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 576 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 577 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 578 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 579 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 580 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 581 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 582 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 583 if (FrontendOpts.ShowStats) 584 CodeGenOpts.ClearASTBeforeBackend = false; 585 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 586 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 587 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 588 LangOpts.CurrentModule = LangOpts.ModuleName; 589 590 llvm::Triple T(TargetOpts.Triple); 591 llvm::Triple::ArchType Arch = T.getArch(); 592 593 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 594 CodeGenOpts.LargeDataThreshold = TargetOpts.LargeDataThreshold; 595 596 if (LangOpts.getExceptionHandling() != 597 LangOptions::ExceptionHandlingKind::None && 598 T.isWindowsMSVCEnvironment()) 599 Diags.Report(diag::err_fe_invalid_exception_model) 600 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 601 602 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 603 Diags.Report(diag::warn_c_kext); 604 605 if (LangOpts.NewAlignOverride && 606 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 607 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 608 Diags.Report(diag::err_fe_invalid_alignment) 609 << A->getAsString(Args) << A->getValue(); 610 LangOpts.NewAlignOverride = 0; 611 } 612 613 // The -f[no-]raw-string-literals option is only valid in C and in C++ 614 // standards before C++11. 615 if (LangOpts.CPlusPlus11) { 616 if (Args.hasArg(OPT_fraw_string_literals, OPT_fno_raw_string_literals)) { 617 Args.claimAllArgs(OPT_fraw_string_literals, OPT_fno_raw_string_literals); 618 Diags.Report(diag::warn_drv_fraw_string_literals_in_cxx11) 619 << bool(LangOpts.RawStringLiterals); 620 } 621 622 // Do not allow disabling raw string literals in C++11 or later. 623 LangOpts.RawStringLiterals = true; 624 } 625 626 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 627 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 628 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 629 << "-fsycl-is-host"; 630 631 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 632 Diags.Report(diag::err_drv_argument_not_allowed_with) 633 << "-fgnu89-inline" << GetInputKindName(IK); 634 635 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 636 Diags.Report(diag::err_drv_argument_not_allowed_with) 637 << "-hlsl-entry" << GetInputKindName(IK); 638 639 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 640 Diags.Report(diag::warn_ignored_hip_only_option) 641 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 642 643 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 644 Diags.Report(diag::warn_ignored_hip_only_option) 645 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 646 647 // When these options are used, the compiler is allowed to apply 648 // optimizations that may affect the final result. For example 649 // (x+y)+z is transformed to x+(y+z) but may not give the same 650 // final result; it's not value safe. 651 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 652 // or NaN. Final result may then differ. An error is issued when the eval 653 // method is set with one of these options. 654 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 655 if (LangOpts.ApproxFunc) 656 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 657 if (LangOpts.AllowFPReassoc) 658 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 659 if (LangOpts.AllowRecip) 660 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 661 } 662 663 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 664 // This option should be deprecated for CL > 1.0 because 665 // this option was added for compatibility with OpenCL 1.0. 666 if (Args.getLastArg(OPT_cl_strict_aliasing) && 667 (LangOpts.getOpenCLCompatibleVersion() > 100)) 668 Diags.Report(diag::warn_option_invalid_ocl_version) 669 << LangOpts.getOpenCLVersionString() 670 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 671 672 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 673 auto DefaultCC = LangOpts.getDefaultCallingConv(); 674 675 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 676 DefaultCC == LangOptions::DCC_StdCall) && 677 Arch != llvm::Triple::x86; 678 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 679 DefaultCC == LangOptions::DCC_RegCall) && 680 !T.isX86(); 681 emitError |= DefaultCC == LangOptions::DCC_RtdCall && Arch != llvm::Triple::m68k; 682 if (emitError) 683 Diags.Report(diag::err_drv_argument_not_allowed_with) 684 << A->getSpelling() << T.getTriple(); 685 } 686 687 return Diags.getNumErrors() == NumErrorsBefore; 688 } 689 690 //===----------------------------------------------------------------------===// 691 // Deserialization (from args) 692 //===----------------------------------------------------------------------===// 693 694 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 695 DiagnosticsEngine &Diags) { 696 unsigned DefaultOpt = 0; 697 if ((IK.getLanguage() == Language::OpenCL || 698 IK.getLanguage() == Language::OpenCLCXX) && 699 !Args.hasArg(OPT_cl_opt_disable)) 700 DefaultOpt = 2; 701 702 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 703 if (A->getOption().matches(options::OPT_O0)) 704 return 0; 705 706 if (A->getOption().matches(options::OPT_Ofast)) 707 return 3; 708 709 assert(A->getOption().matches(options::OPT_O)); 710 711 StringRef S(A->getValue()); 712 if (S == "s" || S == "z") 713 return 2; 714 715 if (S == "g") 716 return 1; 717 718 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 719 } 720 721 return DefaultOpt; 722 } 723 724 static unsigned getOptimizationLevelSize(ArgList &Args) { 725 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 726 if (A->getOption().matches(options::OPT_O)) { 727 switch (A->getValue()[0]) { 728 default: 729 return 0; 730 case 's': 731 return 1; 732 case 'z': 733 return 2; 734 } 735 } 736 } 737 return 0; 738 } 739 740 static void GenerateArg(ArgumentConsumer Consumer, 741 llvm::opt::OptSpecifier OptSpecifier) { 742 Option Opt = getDriverOptTable().getOption(OptSpecifier); 743 denormalizeSimpleFlag(Consumer, Opt.getPrefixedName(), 744 Option::OptionClass::FlagClass, 0); 745 } 746 747 static void GenerateArg(ArgumentConsumer Consumer, 748 llvm::opt::OptSpecifier OptSpecifier, 749 const Twine &Value) { 750 Option Opt = getDriverOptTable().getOption(OptSpecifier); 751 denormalizeString(Consumer, Opt.getPrefixedName(), Opt.getKind(), 0, Value); 752 } 753 754 // Parse command line arguments into CompilerInvocation. 755 using ParseFn = 756 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 757 DiagnosticsEngine &, const char *)>; 758 759 // Generate command line arguments from CompilerInvocation. 760 using GenerateFn = llvm::function_ref<void( 761 CompilerInvocation &, SmallVectorImpl<const char *> &, 762 CompilerInvocation::StringAllocator)>; 763 764 /// May perform round-trip of command line arguments. By default, the round-trip 765 /// is enabled in assert builds. This can be overwritten at run-time via the 766 /// "-round-trip-args" and "-no-round-trip-args" command line flags, or via the 767 /// ForceRoundTrip parameter. 768 /// 769 /// During round-trip, the command line arguments are parsed into a dummy 770 /// CompilerInvocation, which is used to generate the command line arguments 771 /// again. The real CompilerInvocation is then created by parsing the generated 772 /// arguments, not the original ones. This (in combination with tests covering 773 /// argument behavior) ensures the generated command line is complete (doesn't 774 /// drop/mangle any arguments). 775 /// 776 /// Finally, we check the command line that was used to create the real 777 /// CompilerInvocation instance. By default, we compare it to the command line 778 /// the real CompilerInvocation generates. This checks whether the generator is 779 /// deterministic. If \p CheckAgainstOriginalInvocation is enabled, we instead 780 /// compare it to the original command line to verify the original command-line 781 /// was canonical and can round-trip exactly. 782 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 783 CompilerInvocation &RealInvocation, 784 CompilerInvocation &DummyInvocation, 785 ArrayRef<const char *> CommandLineArgs, 786 DiagnosticsEngine &Diags, const char *Argv0, 787 bool CheckAgainstOriginalInvocation = false, 788 bool ForceRoundTrip = false) { 789 #ifndef NDEBUG 790 bool DoRoundTripDefault = true; 791 #else 792 bool DoRoundTripDefault = false; 793 #endif 794 795 bool DoRoundTrip = DoRoundTripDefault; 796 if (ForceRoundTrip) { 797 DoRoundTrip = true; 798 } else { 799 for (const auto *Arg : CommandLineArgs) { 800 if (Arg == StringRef("-round-trip-args")) 801 DoRoundTrip = true; 802 if (Arg == StringRef("-no-round-trip-args")) 803 DoRoundTrip = false; 804 } 805 } 806 807 // If round-trip was not requested, simply run the parser with the real 808 // invocation diagnostics. 809 if (!DoRoundTrip) 810 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 811 812 // Serializes quoted (and potentially escaped) arguments. 813 auto SerializeArgs = [](ArrayRef<const char *> Args) { 814 std::string Buffer; 815 llvm::raw_string_ostream OS(Buffer); 816 for (const char *Arg : Args) { 817 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 818 OS << ' '; 819 } 820 OS.flush(); 821 return Buffer; 822 }; 823 824 // Setup a dummy DiagnosticsEngine. 825 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 826 DummyDiags.setClient(new TextDiagnosticBuffer()); 827 828 // Run the first parse on the original arguments with the dummy invocation and 829 // diagnostics. 830 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 831 DummyDiags.getNumWarnings() != 0) { 832 // If the first parse did not succeed, it must be user mistake (invalid 833 // command line arguments). We won't be able to generate arguments that 834 // would reproduce the same result. Let's fail again with the real 835 // invocation and diagnostics, so all side-effects of parsing are visible. 836 unsigned NumWarningsBefore = Diags.getNumWarnings(); 837 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 838 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 839 return Success; 840 841 // Parse with original options and diagnostics succeeded even though it 842 // shouldn't have. Something is off. 843 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 844 Diags.Report(diag::note_cc1_round_trip_original) 845 << SerializeArgs(CommandLineArgs); 846 return false; 847 } 848 849 // Setup string allocator. 850 llvm::BumpPtrAllocator Alloc; 851 llvm::StringSaver StringPool(Alloc); 852 auto SA = [&StringPool](const Twine &Arg) { 853 return StringPool.save(Arg).data(); 854 }; 855 856 // Generate arguments from the dummy invocation. If Generate is the 857 // inverse of Parse, the newly generated arguments must have the same 858 // semantics as the original. 859 SmallVector<const char *> GeneratedArgs; 860 Generate(DummyInvocation, GeneratedArgs, SA); 861 862 // Run the second parse, now on the generated arguments, and with the real 863 // invocation and diagnostics. The result is what we will end up using for the 864 // rest of compilation, so if Generate is not inverse of Parse, something down 865 // the line will break. 866 bool Success2 = Parse(RealInvocation, GeneratedArgs, Diags, Argv0); 867 868 // The first parse on original arguments succeeded, but second parse of 869 // generated arguments failed. Something must be wrong with the generator. 870 if (!Success2) { 871 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 872 Diags.Report(diag::note_cc1_round_trip_generated) 873 << 1 << SerializeArgs(GeneratedArgs); 874 return false; 875 } 876 877 SmallVector<const char *> ComparisonArgs; 878 if (CheckAgainstOriginalInvocation) 879 // Compare against original arguments. 880 ComparisonArgs.assign(CommandLineArgs.begin(), CommandLineArgs.end()); 881 else 882 // Generate arguments again, this time from the options we will end up using 883 // for the rest of the compilation. 884 Generate(RealInvocation, ComparisonArgs, SA); 885 886 // Compares two lists of arguments. 887 auto Equal = [](const ArrayRef<const char *> A, 888 const ArrayRef<const char *> B) { 889 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 890 [](const char *AElem, const char *BElem) { 891 return StringRef(AElem) == StringRef(BElem); 892 }); 893 }; 894 895 // If we generated different arguments from what we assume are two 896 // semantically equivalent CompilerInvocations, the Generate function may 897 // be non-deterministic. 898 if (!Equal(GeneratedArgs, ComparisonArgs)) { 899 Diags.Report(diag::err_cc1_round_trip_mismatch); 900 Diags.Report(diag::note_cc1_round_trip_generated) 901 << 1 << SerializeArgs(GeneratedArgs); 902 Diags.Report(diag::note_cc1_round_trip_generated) 903 << 2 << SerializeArgs(ComparisonArgs); 904 return false; 905 } 906 907 Diags.Report(diag::remark_cc1_round_trip_generated) 908 << 1 << SerializeArgs(GeneratedArgs); 909 Diags.Report(diag::remark_cc1_round_trip_generated) 910 << 2 << SerializeArgs(ComparisonArgs); 911 912 return Success2; 913 } 914 915 bool CompilerInvocation::checkCC1RoundTrip(ArrayRef<const char *> Args, 916 DiagnosticsEngine &Diags, 917 const char *Argv0) { 918 CompilerInvocation DummyInvocation1, DummyInvocation2; 919 return RoundTrip( 920 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 921 DiagnosticsEngine &Diags, const char *Argv0) { 922 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 923 }, 924 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 925 StringAllocator SA) { 926 Args.push_back("-cc1"); 927 Invocation.generateCC1CommandLine(Args, SA); 928 }, 929 DummyInvocation1, DummyInvocation2, Args, Diags, Argv0, 930 /*CheckAgainstOriginalInvocation=*/true, /*ForceRoundTrip=*/true); 931 } 932 933 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 934 OptSpecifier GroupWithValue, 935 std::vector<std::string> &Diagnostics) { 936 for (auto *A : Args.filtered(Group)) { 937 if (A->getOption().getKind() == Option::FlagClass) { 938 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 939 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 940 Diagnostics.push_back( 941 std::string(A->getOption().getName().drop_front(1))); 942 } else if (A->getOption().matches(GroupWithValue)) { 943 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 944 // group. Add only the group name to the diagnostics. 945 Diagnostics.push_back( 946 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 947 } else { 948 // Otherwise, add its value (for OPT_W_Joined and similar). 949 Diagnostics.push_back(A->getValue()); 950 } 951 } 952 } 953 954 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 955 // it won't verify the input. 956 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 957 DiagnosticsEngine *Diags); 958 959 static void getAllNoBuiltinFuncValues(ArgList &Args, 960 std::vector<std::string> &Funcs) { 961 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 962 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 963 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 964 } 965 966 static void GenerateAnalyzerArgs(const AnalyzerOptions &Opts, 967 ArgumentConsumer Consumer) { 968 const AnalyzerOptions *AnalyzerOpts = &Opts; 969 970 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 971 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 972 #include "clang/Driver/Options.inc" 973 #undef ANALYZER_OPTION_WITH_MARSHALLING 974 975 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 976 switch (Opts.AnalysisConstraintsOpt) { 977 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 978 case NAME##Model: \ 979 GenerateArg(Consumer, OPT_analyzer_constraints, CMDFLAG); \ 980 break; 981 #include "clang/StaticAnalyzer/Core/Analyses.def" 982 default: 983 llvm_unreachable("Tried to generate unknown analysis constraint."); 984 } 985 } 986 987 if (Opts.AnalysisDiagOpt != PD_HTML) { 988 switch (Opts.AnalysisDiagOpt) { 989 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 990 case PD_##NAME: \ 991 GenerateArg(Consumer, OPT_analyzer_output, CMDFLAG); \ 992 break; 993 #include "clang/StaticAnalyzer/Core/Analyses.def" 994 default: 995 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 996 } 997 } 998 999 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 1000 switch (Opts.AnalysisPurgeOpt) { 1001 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1002 case NAME: \ 1003 GenerateArg(Consumer, OPT_analyzer_purge, CMDFLAG); \ 1004 break; 1005 #include "clang/StaticAnalyzer/Core/Analyses.def" 1006 default: 1007 llvm_unreachable("Tried to generate unknown analysis purge mode."); 1008 } 1009 } 1010 1011 if (Opts.InliningMode != NoRedundancy) { 1012 switch (Opts.InliningMode) { 1013 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1014 case NAME: \ 1015 GenerateArg(Consumer, OPT_analyzer_inlining_mode, CMDFLAG); \ 1016 break; 1017 #include "clang/StaticAnalyzer/Core/Analyses.def" 1018 default: 1019 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 1020 } 1021 } 1022 1023 for (const auto &CP : Opts.CheckersAndPackages) { 1024 OptSpecifier Opt = 1025 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 1026 GenerateArg(Consumer, Opt, CP.first); 1027 } 1028 1029 AnalyzerOptions ConfigOpts; 1030 parseAnalyzerConfigs(ConfigOpts, nullptr); 1031 1032 // Sort options by key to avoid relying on StringMap iteration order. 1033 SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts; 1034 for (const auto &C : Opts.Config) 1035 SortedConfigOpts.emplace_back(C.getKey(), C.getValue()); 1036 llvm::sort(SortedConfigOpts, llvm::less_first()); 1037 1038 for (const auto &[Key, Value] : SortedConfigOpts) { 1039 // Don't generate anything that came from parseAnalyzerConfigs. It would be 1040 // redundant and may not be valid on the command line. 1041 auto Entry = ConfigOpts.Config.find(Key); 1042 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value) 1043 continue; 1044 1045 GenerateArg(Consumer, OPT_analyzer_config, Key + "=" + Value); 1046 } 1047 1048 // Nothing to generate for FullCompilerInvocation. 1049 } 1050 1051 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 1052 DiagnosticsEngine &Diags) { 1053 unsigned NumErrorsBefore = Diags.getNumErrors(); 1054 1055 AnalyzerOptions *AnalyzerOpts = &Opts; 1056 1057 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 1058 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1059 #include "clang/Driver/Options.inc" 1060 #undef ANALYZER_OPTION_WITH_MARSHALLING 1061 1062 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 1063 StringRef Name = A->getValue(); 1064 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 1065 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1066 .Case(CMDFLAG, NAME##Model) 1067 #include "clang/StaticAnalyzer/Core/Analyses.def" 1068 .Default(NumConstraints); 1069 if (Value == NumConstraints) { 1070 Diags.Report(diag::err_drv_invalid_value) 1071 << A->getAsString(Args) << Name; 1072 } else { 1073 #ifndef LLVM_WITH_Z3 1074 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 1075 Diags.Report(diag::err_analyzer_not_built_with_z3); 1076 } 1077 #endif // LLVM_WITH_Z3 1078 Opts.AnalysisConstraintsOpt = Value; 1079 } 1080 } 1081 1082 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 1083 StringRef Name = A->getValue(); 1084 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 1085 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 1086 .Case(CMDFLAG, PD_##NAME) 1087 #include "clang/StaticAnalyzer/Core/Analyses.def" 1088 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 1089 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 1090 Diags.Report(diag::err_drv_invalid_value) 1091 << A->getAsString(Args) << Name; 1092 } else { 1093 Opts.AnalysisDiagOpt = Value; 1094 } 1095 } 1096 1097 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 1098 StringRef Name = A->getValue(); 1099 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 1100 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1101 .Case(CMDFLAG, NAME) 1102 #include "clang/StaticAnalyzer/Core/Analyses.def" 1103 .Default(NumPurgeModes); 1104 if (Value == NumPurgeModes) { 1105 Diags.Report(diag::err_drv_invalid_value) 1106 << A->getAsString(Args) << Name; 1107 } else { 1108 Opts.AnalysisPurgeOpt = Value; 1109 } 1110 } 1111 1112 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1113 StringRef Name = A->getValue(); 1114 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1115 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1116 .Case(CMDFLAG, NAME) 1117 #include "clang/StaticAnalyzer/Core/Analyses.def" 1118 .Default(NumInliningModes); 1119 if (Value == NumInliningModes) { 1120 Diags.Report(diag::err_drv_invalid_value) 1121 << A->getAsString(Args) << Name; 1122 } else { 1123 Opts.InliningMode = Value; 1124 } 1125 } 1126 1127 Opts.CheckersAndPackages.clear(); 1128 for (const Arg *A : 1129 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 1130 A->claim(); 1131 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 1132 // We can have a list of comma separated checker names, e.g: 1133 // '-analyzer-checker=cocoa,unix' 1134 StringRef CheckerAndPackageList = A->getValue(); 1135 SmallVector<StringRef, 16> CheckersAndPackages; 1136 CheckerAndPackageList.split(CheckersAndPackages, ","); 1137 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 1138 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 1139 IsEnabled); 1140 } 1141 1142 // Go through the analyzer configuration options. 1143 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 1144 1145 // We can have a list of comma separated config names, e.g: 1146 // '-analyzer-config key1=val1,key2=val2' 1147 StringRef configList = A->getValue(); 1148 SmallVector<StringRef, 4> configVals; 1149 configList.split(configVals, ","); 1150 for (const auto &configVal : configVals) { 1151 StringRef key, val; 1152 std::tie(key, val) = configVal.split("="); 1153 if (val.empty()) { 1154 Diags.Report(SourceLocation(), 1155 diag::err_analyzer_config_no_value) << configVal; 1156 break; 1157 } 1158 if (val.contains('=')) { 1159 Diags.Report(SourceLocation(), 1160 diag::err_analyzer_config_multiple_values) 1161 << configVal; 1162 break; 1163 } 1164 1165 // TODO: Check checker options too, possibly in CheckerRegistry. 1166 // Leave unknown non-checker configs unclaimed. 1167 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1168 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1169 Diags.Report(diag::err_analyzer_config_unknown) << key; 1170 continue; 1171 } 1172 1173 A->claim(); 1174 Opts.Config[key] = std::string(val); 1175 } 1176 } 1177 1178 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1179 parseAnalyzerConfigs(Opts, &Diags); 1180 else 1181 parseAnalyzerConfigs(Opts, nullptr); 1182 1183 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1184 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1185 if (i != 0) 1186 os << " "; 1187 os << Args.getArgString(i); 1188 } 1189 os.flush(); 1190 1191 return Diags.getNumErrors() == NumErrorsBefore; 1192 } 1193 1194 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1195 StringRef OptionName, StringRef DefaultVal) { 1196 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1197 } 1198 1199 static void initOption(AnalyzerOptions::ConfigTable &Config, 1200 DiagnosticsEngine *Diags, 1201 StringRef &OptionField, StringRef Name, 1202 StringRef DefaultVal) { 1203 // String options may be known to invalid (e.g. if the expected string is a 1204 // file name, but the file does not exist), those will have to be checked in 1205 // parseConfigs. 1206 OptionField = getStringOption(Config, Name, DefaultVal); 1207 } 1208 1209 static void initOption(AnalyzerOptions::ConfigTable &Config, 1210 DiagnosticsEngine *Diags, 1211 bool &OptionField, StringRef Name, bool DefaultVal) { 1212 auto PossiblyInvalidVal = 1213 llvm::StringSwitch<std::optional<bool>>( 1214 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1215 .Case("true", true) 1216 .Case("false", false) 1217 .Default(std::nullopt); 1218 1219 if (!PossiblyInvalidVal) { 1220 if (Diags) 1221 Diags->Report(diag::err_analyzer_config_invalid_input) 1222 << Name << "a boolean"; 1223 else 1224 OptionField = DefaultVal; 1225 } else 1226 OptionField = *PossiblyInvalidVal; 1227 } 1228 1229 static void initOption(AnalyzerOptions::ConfigTable &Config, 1230 DiagnosticsEngine *Diags, 1231 unsigned &OptionField, StringRef Name, 1232 unsigned DefaultVal) { 1233 1234 OptionField = DefaultVal; 1235 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1236 .getAsInteger(0, OptionField); 1237 if (Diags && HasFailed) 1238 Diags->Report(diag::err_analyzer_config_invalid_input) 1239 << Name << "an unsigned"; 1240 } 1241 1242 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1243 DiagnosticsEngine *Diags) { 1244 // TODO: There's no need to store the entire configtable, it'd be plenty 1245 // enough to store checker options. 1246 1247 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1248 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1249 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1250 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1251 1252 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1253 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1254 1255 #define ANALYZER_OPTION(...) 1256 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1257 SHALLOW_VAL, DEEP_VAL) \ 1258 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1259 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1260 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1261 1262 // At this point, AnalyzerOptions is configured. Let's validate some options. 1263 1264 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1265 // The current approach only validates the registered checkers which does not 1266 // contain the runtime enabled checkers and optimally we would validate both. 1267 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1268 std::vector<StringRef> Checkers = 1269 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1270 std::vector<StringRef> Packages = 1271 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1272 1273 SmallVector<StringRef, 16> CheckersAndPackages; 1274 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1275 1276 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1277 if (Diags) { 1278 bool IsChecker = CheckerOrPackage.contains('.'); 1279 bool IsValidName = IsChecker 1280 ? llvm::is_contained(Checkers, CheckerOrPackage) 1281 : llvm::is_contained(Packages, CheckerOrPackage); 1282 1283 if (!IsValidName) 1284 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1285 << CheckerOrPackage; 1286 } 1287 1288 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1289 } 1290 } 1291 1292 if (!Diags) 1293 return; 1294 1295 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1296 Diags->Report(diag::err_analyzer_config_invalid_input) 1297 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1298 1299 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1300 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1301 << "a filename"; 1302 1303 if (!AnOpts.ModelPath.empty() && 1304 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1305 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1306 << "a filename"; 1307 } 1308 1309 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1310 static void 1311 GenerateOptimizationRemark(ArgumentConsumer Consumer, OptSpecifier OptEQ, 1312 StringRef Name, 1313 const CodeGenOptions::OptRemark &Remark) { 1314 if (Remark.hasValidPattern()) { 1315 GenerateArg(Consumer, OptEQ, Remark.Pattern); 1316 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1317 GenerateArg(Consumer, OPT_R_Joined, Name); 1318 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1319 GenerateArg(Consumer, OPT_R_Joined, StringRef("no-") + Name); 1320 } 1321 } 1322 1323 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1324 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1325 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1326 static CodeGenOptions::OptRemark 1327 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1328 OptSpecifier OptEQ, StringRef Name) { 1329 CodeGenOptions::OptRemark Result; 1330 1331 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1332 StringRef Pattern) { 1333 Result.Pattern = Pattern.str(); 1334 1335 std::string RegexError; 1336 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1337 if (!Result.Regex->isValid(RegexError)) { 1338 Diags.Report(diag::err_drv_optimization_remark_pattern) 1339 << RegexError << A->getAsString(Args); 1340 return false; 1341 } 1342 1343 return true; 1344 }; 1345 1346 for (Arg *A : Args) { 1347 if (A->getOption().matches(OPT_R_Joined)) { 1348 StringRef Value = A->getValue(); 1349 1350 if (Value == Name) 1351 Result.Kind = CodeGenOptions::RK_Enabled; 1352 else if (Value == "everything") 1353 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1354 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1355 Result.Kind = CodeGenOptions::RK_Disabled; 1356 else if (Value == "no-everything") 1357 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1358 else 1359 continue; 1360 1361 if (Result.Kind == CodeGenOptions::RK_Disabled || 1362 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1363 Result.Pattern = ""; 1364 Result.Regex = nullptr; 1365 } else { 1366 InitializeResultPattern(A, ".*"); 1367 } 1368 } else if (A->getOption().matches(OptEQ)) { 1369 Result.Kind = CodeGenOptions::RK_WithPattern; 1370 if (!InitializeResultPattern(A, A->getValue())) 1371 return CodeGenOptions::OptRemark(); 1372 } 1373 } 1374 1375 return Result; 1376 } 1377 1378 static bool parseDiagnosticLevelMask(StringRef FlagName, 1379 const std::vector<std::string> &Levels, 1380 DiagnosticsEngine &Diags, 1381 DiagnosticLevelMask &M) { 1382 bool Success = true; 1383 for (const auto &Level : Levels) { 1384 DiagnosticLevelMask const PM = 1385 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1386 .Case("note", DiagnosticLevelMask::Note) 1387 .Case("remark", DiagnosticLevelMask::Remark) 1388 .Case("warning", DiagnosticLevelMask::Warning) 1389 .Case("error", DiagnosticLevelMask::Error) 1390 .Default(DiagnosticLevelMask::None); 1391 if (PM == DiagnosticLevelMask::None) { 1392 Success = false; 1393 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1394 } 1395 M = M | PM; 1396 } 1397 return Success; 1398 } 1399 1400 static void parseSanitizerKinds(StringRef FlagName, 1401 const std::vector<std::string> &Sanitizers, 1402 DiagnosticsEngine &Diags, SanitizerSet &S) { 1403 for (const auto &Sanitizer : Sanitizers) { 1404 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1405 if (K == SanitizerMask()) 1406 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1407 else 1408 S.set(K, true); 1409 } 1410 } 1411 1412 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1413 SmallVector<StringRef, 4> Values; 1414 serializeSanitizerSet(S, Values); 1415 return Values; 1416 } 1417 1418 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1419 ArgList &Args, DiagnosticsEngine &D, 1420 XRayInstrSet &S) { 1421 llvm::SmallVector<StringRef, 2> BundleParts; 1422 llvm::SplitString(Bundle, BundleParts, ","); 1423 for (const auto &B : BundleParts) { 1424 auto Mask = parseXRayInstrValue(B); 1425 if (Mask == XRayInstrKind::None) 1426 if (B != "none") 1427 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1428 else 1429 S.Mask = Mask; 1430 else if (Mask == XRayInstrKind::All) 1431 S.Mask = Mask; 1432 else 1433 S.set(Mask, true); 1434 } 1435 } 1436 1437 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1438 llvm::SmallVector<StringRef, 2> BundleParts; 1439 serializeXRayInstrValue(S, BundleParts); 1440 std::string Buffer; 1441 llvm::raw_string_ostream OS(Buffer); 1442 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1443 return Buffer; 1444 } 1445 1446 // Set the profile kind using fprofile-instrument-use-path. 1447 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1448 const Twine &ProfileName, 1449 llvm::vfs::FileSystem &FS, 1450 DiagnosticsEngine &Diags) { 1451 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName, FS); 1452 if (auto E = ReaderOrErr.takeError()) { 1453 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1454 "Error in reading profile %0: %1"); 1455 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1456 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1457 }); 1458 return; 1459 } 1460 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1461 std::move(ReaderOrErr.get()); 1462 // Currently memprof profiles are only added at the IR level. Mark the profile 1463 // type as IR in that case as well and the subsequent matching needs to detect 1464 // which is available (might be one or both). 1465 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1466 if (PGOReader->hasCSIRLevelProfile()) 1467 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1468 else 1469 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1470 } else 1471 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1472 } 1473 1474 void CompilerInvocation::setDefaultPointerAuthOptions( 1475 PointerAuthOptions &Opts, const LangOptions &LangOpts, 1476 const llvm::Triple &Triple) { 1477 assert(Triple.getArch() == llvm::Triple::aarch64); 1478 if (LangOpts.PointerAuthCalls) { 1479 using Key = PointerAuthSchema::ARM8_3Key; 1480 using Discrimination = PointerAuthSchema::Discrimination; 1481 // If you change anything here, be sure to update <ptrauth.h>. 1482 Opts.FunctionPointers = PointerAuthSchema( 1483 Key::ASIA, false, 1484 LangOpts.PointerAuthFunctionTypeDiscrimination ? Discrimination::Type 1485 : Discrimination::None); 1486 1487 Opts.CXXVTablePointers = PointerAuthSchema( 1488 Key::ASDA, LangOpts.PointerAuthVTPtrAddressDiscrimination, 1489 LangOpts.PointerAuthVTPtrTypeDiscrimination ? Discrimination::Type 1490 : Discrimination::None); 1491 1492 if (LangOpts.PointerAuthTypeInfoVTPtrDiscrimination) 1493 Opts.CXXTypeInfoVTablePointer = 1494 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1495 StdTypeInfoVTablePointerConstantDiscrimination); 1496 else 1497 Opts.CXXTypeInfoVTablePointer = 1498 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1499 1500 Opts.CXXVTTVTablePointers = 1501 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1502 Opts.CXXVirtualFunctionPointers = Opts.CXXVirtualVariadicFunctionPointers = 1503 PointerAuthSchema(Key::ASIA, true, Discrimination::Decl); 1504 Opts.CXXMemberFunctionPointers = 1505 PointerAuthSchema(Key::ASIA, false, Discrimination::Type); 1506 1507 if (LangOpts.PointerAuthInitFini) { 1508 Opts.InitFiniPointers = PointerAuthSchema( 1509 Key::ASIA, LangOpts.PointerAuthInitFiniAddressDiscrimination, 1510 Discrimination::Constant, InitFiniPointerConstantDiscriminator); 1511 } 1512 } 1513 Opts.IndirectGotos = LangOpts.PointerAuthIndirectGotos; 1514 Opts.ReturnAddresses = LangOpts.PointerAuthReturns; 1515 } 1516 1517 static void parsePointerAuthOptions(PointerAuthOptions &Opts, 1518 const LangOptions &LangOpts, 1519 const llvm::Triple &Triple, 1520 DiagnosticsEngine &Diags) { 1521 if (!LangOpts.PointerAuthCalls && !LangOpts.PointerAuthIndirectGotos && 1522 !LangOpts.PointerAuthReturns) 1523 return; 1524 1525 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple); 1526 } 1527 1528 void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts, 1529 ArgumentConsumer Consumer, 1530 const llvm::Triple &T, 1531 const std::string &OutputFile, 1532 const LangOptions *LangOpts) { 1533 const CodeGenOptions &CodeGenOpts = Opts; 1534 1535 if (Opts.OptimizationLevel == 0) 1536 GenerateArg(Consumer, OPT_O0); 1537 else 1538 GenerateArg(Consumer, OPT_O, Twine(Opts.OptimizationLevel)); 1539 1540 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1541 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 1542 #include "clang/Driver/Options.inc" 1543 #undef CODEGEN_OPTION_WITH_MARSHALLING 1544 1545 if (Opts.OptimizationLevel > 0) { 1546 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1547 GenerateArg(Consumer, OPT_finline_functions); 1548 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1549 GenerateArg(Consumer, OPT_finline_hint_functions); 1550 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1551 GenerateArg(Consumer, OPT_fno_inline); 1552 } 1553 1554 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1555 GenerateArg(Consumer, OPT_fdirect_access_external_data); 1556 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1557 GenerateArg(Consumer, OPT_fno_direct_access_external_data); 1558 1559 std::optional<StringRef> DebugInfoVal; 1560 switch (Opts.DebugInfo) { 1561 case llvm::codegenoptions::DebugLineTablesOnly: 1562 DebugInfoVal = "line-tables-only"; 1563 break; 1564 case llvm::codegenoptions::DebugDirectivesOnly: 1565 DebugInfoVal = "line-directives-only"; 1566 break; 1567 case llvm::codegenoptions::DebugInfoConstructor: 1568 DebugInfoVal = "constructor"; 1569 break; 1570 case llvm::codegenoptions::LimitedDebugInfo: 1571 DebugInfoVal = "limited"; 1572 break; 1573 case llvm::codegenoptions::FullDebugInfo: 1574 DebugInfoVal = "standalone"; 1575 break; 1576 case llvm::codegenoptions::UnusedTypeInfo: 1577 DebugInfoVal = "unused-types"; 1578 break; 1579 case llvm::codegenoptions::NoDebugInfo: // default value 1580 DebugInfoVal = std::nullopt; 1581 break; 1582 case llvm::codegenoptions::LocTrackingOnly: // implied value 1583 DebugInfoVal = std::nullopt; 1584 break; 1585 } 1586 if (DebugInfoVal) 1587 GenerateArg(Consumer, OPT_debug_info_kind_EQ, *DebugInfoVal); 1588 1589 for (const auto &Prefix : Opts.DebugPrefixMap) 1590 GenerateArg(Consumer, OPT_fdebug_prefix_map_EQ, 1591 Prefix.first + "=" + Prefix.second); 1592 1593 for (const auto &Prefix : Opts.CoveragePrefixMap) 1594 GenerateArg(Consumer, OPT_fcoverage_prefix_map_EQ, 1595 Prefix.first + "=" + Prefix.second); 1596 1597 if (Opts.NewStructPathTBAA) 1598 GenerateArg(Consumer, OPT_new_struct_path_tbaa); 1599 1600 if (Opts.OptimizeSize == 1) 1601 GenerateArg(Consumer, OPT_O, "s"); 1602 else if (Opts.OptimizeSize == 2) 1603 GenerateArg(Consumer, OPT_O, "z"); 1604 1605 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1606 // -ffreestanding. We'll consider that when generating them. 1607 1608 // NoBuiltinFuncs are generated by LangOptions. 1609 1610 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1611 GenerateArg(Consumer, OPT_funroll_loops); 1612 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1613 GenerateArg(Consumer, OPT_fno_unroll_loops); 1614 1615 if (!Opts.BinutilsVersion.empty()) 1616 GenerateArg(Consumer, OPT_fbinutils_version_EQ, Opts.BinutilsVersion); 1617 1618 if (Opts.DebugNameTable == 1619 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1620 GenerateArg(Consumer, OPT_ggnu_pubnames); 1621 else if (Opts.DebugNameTable == 1622 static_cast<unsigned>( 1623 llvm::DICompileUnit::DebugNameTableKind::Default)) 1624 GenerateArg(Consumer, OPT_gpubnames); 1625 1626 if (Opts.DebugTemplateAlias) 1627 GenerateArg(Consumer, OPT_gtemplate_alias); 1628 1629 auto TNK = Opts.getDebugSimpleTemplateNames(); 1630 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) { 1631 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple) 1632 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "simple"); 1633 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled) 1634 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "mangled"); 1635 } 1636 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1637 // it or PGOUseInstrumentor. 1638 1639 if (Opts.TimePasses) { 1640 if (Opts.TimePassesPerRun) 1641 GenerateArg(Consumer, OPT_ftime_report_EQ, "per-pass-run"); 1642 else 1643 GenerateArg(Consumer, OPT_ftime_report); 1644 } 1645 1646 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1647 GenerateArg(Consumer, OPT_flto_EQ, "full"); 1648 1649 if (Opts.PrepareForThinLTO) 1650 GenerateArg(Consumer, OPT_flto_EQ, "thin"); 1651 1652 if (!Opts.ThinLTOIndexFile.empty()) 1653 GenerateArg(Consumer, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile); 1654 1655 if (Opts.SaveTempsFilePrefix == OutputFile) 1656 GenerateArg(Consumer, OPT_save_temps_EQ, "obj"); 1657 1658 StringRef MemProfileBasename("memprof.profraw"); 1659 if (!Opts.MemoryProfileOutput.empty()) { 1660 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1661 GenerateArg(Consumer, OPT_fmemory_profile); 1662 } else { 1663 size_t ArgLength = 1664 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1665 GenerateArg(Consumer, OPT_fmemory_profile_EQ, 1666 Opts.MemoryProfileOutput.substr(0, ArgLength)); 1667 } 1668 } 1669 1670 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1671 GenerateArg(Consumer, OPT_coverage_version_EQ, 1672 StringRef(Opts.CoverageVersion, 4)); 1673 1674 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1675 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1676 // won't be generated.) 1677 1678 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1679 std::string InstrBundle = 1680 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1681 if (!InstrBundle.empty()) 1682 GenerateArg(Consumer, OPT_fxray_instrumentation_bundle, InstrBundle); 1683 } 1684 1685 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1686 GenerateArg(Consumer, OPT_fcf_protection_EQ, "full"); 1687 else if (Opts.CFProtectionReturn) 1688 GenerateArg(Consumer, OPT_fcf_protection_EQ, "return"); 1689 else if (Opts.CFProtectionBranch) 1690 GenerateArg(Consumer, OPT_fcf_protection_EQ, "branch"); 1691 1692 if (Opts.FunctionReturnThunks) 1693 GenerateArg(Consumer, OPT_mfunction_return_EQ, "thunk-extern"); 1694 1695 for (const auto &F : Opts.LinkBitcodeFiles) { 1696 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1697 F.PropagateAttrs && F.Internalize; 1698 GenerateArg(Consumer, 1699 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1700 F.Filename); 1701 } 1702 1703 if (Opts.EmulatedTLS) 1704 GenerateArg(Consumer, OPT_femulated_tls); 1705 1706 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1707 GenerateArg(Consumer, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str()); 1708 1709 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1710 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1711 GenerateArg(Consumer, OPT_fdenormal_fp_math_f32_EQ, 1712 Opts.FP32DenormalMode.str()); 1713 1714 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1715 OptSpecifier Opt = 1716 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1717 GenerateArg(Consumer, Opt); 1718 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1719 OptSpecifier Opt = 1720 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1721 GenerateArg(Consumer, Opt); 1722 } 1723 1724 if (Opts.EnableAIXExtendedAltivecABI) 1725 GenerateArg(Consumer, OPT_mabi_EQ_vec_extabi); 1726 1727 if (Opts.XCOFFReadOnlyPointers) 1728 GenerateArg(Consumer, OPT_mxcoff_roptr); 1729 1730 if (!Opts.OptRecordPasses.empty()) 1731 GenerateArg(Consumer, OPT_opt_record_passes, Opts.OptRecordPasses); 1732 1733 if (!Opts.OptRecordFormat.empty()) 1734 GenerateArg(Consumer, OPT_opt_record_format, Opts.OptRecordFormat); 1735 1736 GenerateOptimizationRemark(Consumer, OPT_Rpass_EQ, "pass", 1737 Opts.OptimizationRemark); 1738 1739 GenerateOptimizationRemark(Consumer, OPT_Rpass_missed_EQ, "pass-missed", 1740 Opts.OptimizationRemarkMissed); 1741 1742 GenerateOptimizationRemark(Consumer, OPT_Rpass_analysis_EQ, "pass-analysis", 1743 Opts.OptimizationRemarkAnalysis); 1744 1745 GenerateArg(Consumer, OPT_fdiagnostics_hotness_threshold_EQ, 1746 Opts.DiagnosticsHotnessThreshold 1747 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1748 : "auto"); 1749 1750 GenerateArg(Consumer, OPT_fdiagnostics_misexpect_tolerance_EQ, 1751 Twine(*Opts.DiagnosticsMisExpectTolerance)); 1752 1753 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1754 GenerateArg(Consumer, OPT_fsanitize_recover_EQ, Sanitizer); 1755 1756 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1757 GenerateArg(Consumer, OPT_fsanitize_trap_EQ, Sanitizer); 1758 1759 if (!Opts.EmitVersionIdentMetadata) 1760 GenerateArg(Consumer, OPT_Qn); 1761 1762 switch (Opts.FiniteLoops) { 1763 case CodeGenOptions::FiniteLoopsKind::Language: 1764 break; 1765 case CodeGenOptions::FiniteLoopsKind::Always: 1766 GenerateArg(Consumer, OPT_ffinite_loops); 1767 break; 1768 case CodeGenOptions::FiniteLoopsKind::Never: 1769 GenerateArg(Consumer, OPT_fno_finite_loops); 1770 break; 1771 } 1772 } 1773 1774 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1775 InputKind IK, 1776 DiagnosticsEngine &Diags, 1777 const llvm::Triple &T, 1778 const std::string &OutputFile, 1779 const LangOptions &LangOptsRef) { 1780 unsigned NumErrorsBefore = Diags.getNumErrors(); 1781 1782 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1783 // TODO: This could be done in Driver 1784 unsigned MaxOptLevel = 3; 1785 if (OptimizationLevel > MaxOptLevel) { 1786 // If the optimization level is not supported, fall back on the default 1787 // optimization 1788 Diags.Report(diag::warn_drv_optimization_value) 1789 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1790 OptimizationLevel = MaxOptLevel; 1791 } 1792 Opts.OptimizationLevel = OptimizationLevel; 1793 1794 // The key paths of codegen options defined in Options.td start with 1795 // "CodeGenOpts.". Let's provide the expected variable name and type. 1796 CodeGenOptions &CodeGenOpts = Opts; 1797 // Some codegen options depend on language options. Let's provide the expected 1798 // variable name and type. 1799 const LangOptions *LangOpts = &LangOptsRef; 1800 1801 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1802 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1803 #include "clang/Driver/Options.inc" 1804 #undef CODEGEN_OPTION_WITH_MARSHALLING 1805 1806 // At O0 we want to fully disable inlining outside of cases marked with 1807 // 'alwaysinline' that are required for correctness. 1808 if (Opts.OptimizationLevel == 0) { 1809 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1810 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1811 options::OPT_finline_hint_functions, 1812 options::OPT_fno_inline_functions, 1813 options::OPT_fno_inline)) { 1814 // Explicit inlining flags can disable some or all inlining even at 1815 // optimization levels above zero. 1816 if (A->getOption().matches(options::OPT_finline_functions)) 1817 Opts.setInlining(CodeGenOptions::NormalInlining); 1818 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1819 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1820 else 1821 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1822 } else { 1823 Opts.setInlining(CodeGenOptions::NormalInlining); 1824 } 1825 1826 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1827 // -fdirect-access-external-data. 1828 Opts.DirectAccessExternalData = 1829 Args.hasArg(OPT_fdirect_access_external_data) || 1830 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1831 LangOpts->PICLevel == 0); 1832 1833 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1834 unsigned Val = 1835 llvm::StringSwitch<unsigned>(A->getValue()) 1836 .Case("line-tables-only", llvm::codegenoptions::DebugLineTablesOnly) 1837 .Case("line-directives-only", 1838 llvm::codegenoptions::DebugDirectivesOnly) 1839 .Case("constructor", llvm::codegenoptions::DebugInfoConstructor) 1840 .Case("limited", llvm::codegenoptions::LimitedDebugInfo) 1841 .Case("standalone", llvm::codegenoptions::FullDebugInfo) 1842 .Case("unused-types", llvm::codegenoptions::UnusedTypeInfo) 1843 .Default(~0U); 1844 if (Val == ~0U) 1845 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1846 << A->getValue(); 1847 else 1848 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val)); 1849 } 1850 1851 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1852 // constructor homing, and vice versa for -fno-use-ctor-homing. 1853 if (const Arg *A = 1854 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1855 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1856 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo) 1857 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor); 1858 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1859 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor) 1860 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo); 1861 } 1862 1863 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1864 auto Split = StringRef(Arg).split('='); 1865 Opts.DebugPrefixMap.emplace_back(Split.first, Split.second); 1866 } 1867 1868 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1869 auto Split = StringRef(Arg).split('='); 1870 Opts.CoveragePrefixMap.emplace_back(Split.first, Split.second); 1871 } 1872 1873 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1874 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1875 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1876 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1877 1878 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1879 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1880 Opts.EmitCallSiteInfo = true; 1881 1882 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1883 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1884 << Opts.DIBugsReportFilePath; 1885 Opts.DIBugsReportFilePath = ""; 1886 } 1887 1888 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1889 Args.hasArg(OPT_new_struct_path_tbaa); 1890 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1891 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1892 if (Opts.SimplifyLibCalls) 1893 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1894 Opts.UnrollLoops = 1895 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1896 (Opts.OptimizationLevel > 1)); 1897 Opts.BinutilsVersion = 1898 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1899 1900 Opts.DebugTemplateAlias = Args.hasArg(OPT_gtemplate_alias); 1901 1902 Opts.DebugNameTable = static_cast<unsigned>( 1903 Args.hasArg(OPT_ggnu_pubnames) 1904 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1905 : Args.hasArg(OPT_gpubnames) 1906 ? llvm::DICompileUnit::DebugNameTableKind::Default 1907 : llvm::DICompileUnit::DebugNameTableKind::None); 1908 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1909 StringRef Value = A->getValue(); 1910 if (Value != "simple" && Value != "mangled") 1911 Diags.Report(diag::err_drv_unsupported_option_argument) 1912 << A->getSpelling() << A->getValue(); 1913 Opts.setDebugSimpleTemplateNames( 1914 StringRef(A->getValue()) == "simple" 1915 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple 1916 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled); 1917 } 1918 1919 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1920 Opts.TimePasses = true; 1921 1922 // -ftime-report= is only for new pass manager. 1923 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1924 StringRef Val = A->getValue(); 1925 if (Val == "per-pass") 1926 Opts.TimePassesPerRun = false; 1927 else if (Val == "per-pass-run") 1928 Opts.TimePassesPerRun = true; 1929 else 1930 Diags.Report(diag::err_drv_invalid_value) 1931 << A->getAsString(Args) << A->getValue(); 1932 } 1933 } 1934 1935 Opts.PrepareForLTO = false; 1936 Opts.PrepareForThinLTO = false; 1937 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1938 Opts.PrepareForLTO = true; 1939 StringRef S = A->getValue(); 1940 if (S == "thin") 1941 Opts.PrepareForThinLTO = true; 1942 else if (S != "full") 1943 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1944 if (Args.hasArg(OPT_funified_lto)) 1945 Opts.PrepareForThinLTO = true; 1946 } 1947 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1948 if (IK.getLanguage() != Language::LLVM_IR) 1949 Diags.Report(diag::err_drv_argument_only_allowed_with) 1950 << A->getAsString(Args) << "-x ir"; 1951 Opts.ThinLTOIndexFile = 1952 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1953 } 1954 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1955 Opts.SaveTempsFilePrefix = 1956 llvm::StringSwitch<std::string>(A->getValue()) 1957 .Case("obj", OutputFile) 1958 .Default(llvm::sys::path::filename(OutputFile).str()); 1959 1960 // The memory profile runtime appends the pid to make this name more unique. 1961 const char *MemProfileBasename = "memprof.profraw"; 1962 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1963 SmallString<128> Path( 1964 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1965 llvm::sys::path::append(Path, MemProfileBasename); 1966 Opts.MemoryProfileOutput = std::string(Path); 1967 } else if (Args.hasArg(OPT_fmemory_profile)) 1968 Opts.MemoryProfileOutput = MemProfileBasename; 1969 1970 memcpy(Opts.CoverageVersion, "408*", 4); 1971 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) { 1972 if (Args.hasArg(OPT_coverage_version_EQ)) { 1973 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1974 if (CoverageVersion.size() != 4) { 1975 Diags.Report(diag::err_drv_invalid_value) 1976 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1977 << CoverageVersion; 1978 } else { 1979 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1980 } 1981 } 1982 } 1983 // FIXME: For backend options that are not yet recorded as function 1984 // attributes in the IR, keep track of them so we can embed them in a 1985 // separate data section and use them when building the bitcode. 1986 for (const auto &A : Args) { 1987 // Do not encode output and input. 1988 if (A->getOption().getID() == options::OPT_o || 1989 A->getOption().getID() == options::OPT_INPUT || 1990 A->getOption().getID() == options::OPT_x || 1991 A->getOption().getID() == options::OPT_fembed_bitcode || 1992 A->getOption().matches(options::OPT_W_Group)) 1993 continue; 1994 ArgStringList ASL; 1995 A->render(Args, ASL); 1996 for (const auto &arg : ASL) { 1997 StringRef ArgStr(arg); 1998 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1999 // using \00 to separate each commandline options. 2000 Opts.CmdArgs.push_back('\0'); 2001 } 2002 } 2003 2004 auto XRayInstrBundles = 2005 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 2006 if (XRayInstrBundles.empty()) 2007 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 2008 else 2009 for (const auto &A : XRayInstrBundles) 2010 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 2011 Diags, Opts.XRayInstrumentationBundle); 2012 2013 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2014 StringRef Name = A->getValue(); 2015 if (Name == "full") { 2016 Opts.CFProtectionReturn = 1; 2017 Opts.CFProtectionBranch = 1; 2018 } else if (Name == "return") 2019 Opts.CFProtectionReturn = 1; 2020 else if (Name == "branch") 2021 Opts.CFProtectionBranch = 1; 2022 else if (Name != "none") 2023 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2024 } 2025 2026 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 2027 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 2028 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 2029 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 2030 .Default(llvm::FunctionReturnThunksKind::Invalid); 2031 // SystemZ might want to add support for "expolines." 2032 if (!T.isX86()) 2033 Diags.Report(diag::err_drv_argument_not_allowed_with) 2034 << A->getSpelling() << T.getTriple(); 2035 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 2036 Diags.Report(diag::err_drv_invalid_value) 2037 << A->getAsString(Args) << A->getValue(); 2038 else if (Val == llvm::FunctionReturnThunksKind::Extern && 2039 Args.getLastArgValue(OPT_mcmodel_EQ) == "large") 2040 Diags.Report(diag::err_drv_argument_not_allowed_with) 2041 << A->getAsString(Args) 2042 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 2043 else 2044 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 2045 } 2046 2047 for (auto *A : 2048 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 2049 CodeGenOptions::BitcodeFileToLink F; 2050 F.Filename = A->getValue(); 2051 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 2052 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 2053 // When linking CUDA bitcode, propagate function attributes so that 2054 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 2055 F.PropagateAttrs = true; 2056 F.Internalize = true; 2057 } 2058 Opts.LinkBitcodeFiles.push_back(F); 2059 } 2060 2061 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 2062 StringRef Val = A->getValue(); 2063 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 2064 Opts.FP32DenormalMode = Opts.FPDenormalMode; 2065 if (!Opts.FPDenormalMode.isValid()) 2066 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2067 } 2068 2069 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 2070 StringRef Val = A->getValue(); 2071 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 2072 if (!Opts.FP32DenormalMode.isValid()) 2073 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2074 } 2075 2076 // X86_32 has -fppc-struct-return and -freg-struct-return. 2077 // PPC32 has -maix-struct-return and -msvr4-struct-return. 2078 if (Arg *A = 2079 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 2080 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 2081 // TODO: We might want to consider enabling these options on AIX in the 2082 // future. 2083 if (T.isOSAIX()) 2084 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2085 << A->getSpelling() << T.str(); 2086 2087 const Option &O = A->getOption(); 2088 if (O.matches(OPT_fpcc_struct_return) || 2089 O.matches(OPT_maix_struct_return)) { 2090 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 2091 } else { 2092 assert(O.matches(OPT_freg_struct_return) || 2093 O.matches(OPT_msvr4_struct_return)); 2094 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 2095 } 2096 } 2097 2098 if (Arg *A = Args.getLastArg(OPT_mxcoff_roptr)) { 2099 if (!T.isOSAIX()) 2100 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2101 << A->getSpelling() << T.str(); 2102 2103 // Since the storage mapping class is specified per csect, 2104 // without using data sections, it is less effective to use read-only 2105 // pointers. Using read-only pointers may cause other RO variables in the 2106 // same csect to become RW when the linker acts upon `-bforceimprw`; 2107 // therefore, we require that separate data sections 2108 // are used when `-mxcoff-roptr` is in effect. We respect the setting of 2109 // data-sections since we have not found reasons to do otherwise that 2110 // overcome the user surprise of not respecting the setting. 2111 if (!Args.hasFlag(OPT_fdata_sections, OPT_fno_data_sections, false)) 2112 Diags.Report(diag::err_roptr_requires_data_sections); 2113 2114 Opts.XCOFFReadOnlyPointers = true; 2115 } 2116 2117 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 2118 if (!T.isOSAIX() || T.isPPC32()) 2119 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2120 << A->getSpelling() << T.str(); 2121 } 2122 2123 bool NeedLocTracking = false; 2124 2125 if (!Opts.OptRecordFile.empty()) 2126 NeedLocTracking = true; 2127 2128 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 2129 Opts.OptRecordPasses = A->getValue(); 2130 NeedLocTracking = true; 2131 } 2132 2133 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 2134 Opts.OptRecordFormat = A->getValue(); 2135 NeedLocTracking = true; 2136 } 2137 2138 Opts.OptimizationRemark = 2139 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 2140 2141 Opts.OptimizationRemarkMissed = 2142 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 2143 2144 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 2145 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 2146 2147 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 2148 Opts.OptimizationRemarkMissed.hasValidPattern() || 2149 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 2150 2151 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 2152 bool UsingProfile = 2153 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 2154 2155 if (Opts.DiagnosticsWithHotness && !UsingProfile && 2156 // An IR file will contain PGO as metadata 2157 IK.getLanguage() != Language::LLVM_IR) 2158 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2159 << "-fdiagnostics-show-hotness"; 2160 2161 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 2162 if (auto *arg = 2163 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 2164 auto ResultOrErr = 2165 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 2166 2167 if (!ResultOrErr) { 2168 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 2169 << "-fdiagnostics-hotness-threshold="; 2170 } else { 2171 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 2172 if ((!Opts.DiagnosticsHotnessThreshold || 2173 *Opts.DiagnosticsHotnessThreshold > 0) && 2174 !UsingProfile) 2175 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2176 << "-fdiagnostics-hotness-threshold="; 2177 } 2178 } 2179 2180 if (auto *arg = 2181 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2182 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2183 2184 if (!ResultOrErr) { 2185 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2186 << "-fdiagnostics-misexpect-tolerance="; 2187 } else { 2188 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2189 if ((!Opts.DiagnosticsMisExpectTolerance || 2190 *Opts.DiagnosticsMisExpectTolerance > 0) && 2191 !UsingProfile) 2192 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2193 << "-fdiagnostics-misexpect-tolerance="; 2194 } 2195 } 2196 2197 // If the user requested to use a sample profile for PGO, then the 2198 // backend will need to track source location information so the profile 2199 // can be incorporated into the IR. 2200 if (UsingSampleProfile) 2201 NeedLocTracking = true; 2202 2203 if (!Opts.StackUsageOutput.empty()) 2204 NeedLocTracking = true; 2205 2206 // If the user requested a flag that requires source locations available in 2207 // the backend, make sure that the backend tracks source location information. 2208 if (NeedLocTracking && 2209 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo) 2210 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly); 2211 2212 // Parse -fsanitize-recover= arguments. 2213 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2214 parseSanitizerKinds("-fsanitize-recover=", 2215 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2216 Opts.SanitizeRecover); 2217 parseSanitizerKinds("-fsanitize-trap=", 2218 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2219 Opts.SanitizeTrap); 2220 2221 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2222 2223 if (!LangOpts->CUDAIsDevice) 2224 parsePointerAuthOptions(Opts.PointerAuth, *LangOpts, T, Diags); 2225 2226 if (Args.hasArg(options::OPT_ffinite_loops)) 2227 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2228 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2229 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2230 2231 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2232 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2233 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2234 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2235 2236 return Diags.getNumErrors() == NumErrorsBefore; 2237 } 2238 2239 static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2240 ArgumentConsumer Consumer) { 2241 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2242 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2243 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2244 #include "clang/Driver/Options.inc" 2245 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2246 2247 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2248 GenerateArg(Consumer, OPT_show_includes); 2249 2250 for (const auto &Dep : Opts.ExtraDeps) { 2251 switch (Dep.second) { 2252 case EDK_SanitizeIgnorelist: 2253 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2254 continue; 2255 case EDK_ModuleFile: 2256 // Module file arguments are generated from FrontendOptions and 2257 // HeaderSearchOptions. 2258 continue; 2259 case EDK_ProfileList: 2260 // Profile list arguments are generated from LanguageOptions via the 2261 // marshalling infrastructure. 2262 continue; 2263 case EDK_DepFileEntry: 2264 GenerateArg(Consumer, OPT_fdepfile_entry, Dep.first); 2265 break; 2266 } 2267 } 2268 } 2269 2270 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2271 ArgList &Args, DiagnosticsEngine &Diags, 2272 frontend::ActionKind Action, 2273 bool ShowLineMarkers) { 2274 unsigned NumErrorsBefore = Diags.getNumErrors(); 2275 2276 DependencyOutputOptions &DependencyOutputOpts = Opts; 2277 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2278 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2279 #include "clang/Driver/Options.inc" 2280 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2281 2282 if (Args.hasArg(OPT_show_includes)) { 2283 // Writing both /showIncludes and preprocessor output to stdout 2284 // would produce interleaved output, so use stderr for /showIncludes. 2285 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2286 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2287 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2288 else 2289 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2290 } else { 2291 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2292 } 2293 2294 // Add sanitizer ignorelists as extra dependencies. 2295 // They won't be discovered by the regular preprocessor, so 2296 // we let make / ninja to know about this implicit dependency. 2297 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2298 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2299 StringRef Val = A->getValue(); 2300 if (!Val.contains('=')) 2301 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2302 } 2303 if (Opts.IncludeSystemHeaders) { 2304 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2305 StringRef Val = A->getValue(); 2306 if (!Val.contains('=')) 2307 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2308 } 2309 } 2310 } 2311 2312 // -fprofile-list= dependencies. 2313 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2314 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2315 2316 // Propagate the extra dependencies. 2317 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2318 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2319 2320 // Only the -fmodule-file=<file> form. 2321 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2322 StringRef Val = A->getValue(); 2323 if (!Val.contains('=')) 2324 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2325 } 2326 2327 // Check for invalid combinations of header-include-format 2328 // and header-include-filtering. 2329 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2330 Opts.HeaderIncludeFiltering != HIFIL_None) || 2331 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2332 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2333 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2334 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2335 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2336 2337 return Diags.getNumErrors() == NumErrorsBefore; 2338 } 2339 2340 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2341 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2342 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2343 // Support both clang's -f[no-]color-diagnostics and gcc's 2344 // -f[no-]diagnostics-colors[=never|always|auto]. 2345 enum { 2346 Colors_On, 2347 Colors_Off, 2348 Colors_Auto 2349 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2350 for (auto *A : Args) { 2351 const Option &O = A->getOption(); 2352 if (O.matches(options::OPT_fcolor_diagnostics)) { 2353 ShowColors = Colors_On; 2354 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2355 ShowColors = Colors_Off; 2356 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2357 StringRef Value(A->getValue()); 2358 if (Value == "always") 2359 ShowColors = Colors_On; 2360 else if (Value == "never") 2361 ShowColors = Colors_Off; 2362 else if (Value == "auto") 2363 ShowColors = Colors_Auto; 2364 } 2365 } 2366 return ShowColors == Colors_On || 2367 (ShowColors == Colors_Auto && 2368 llvm::sys::Process::StandardErrHasColors()); 2369 } 2370 2371 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2372 DiagnosticsEngine &Diags) { 2373 bool Success = true; 2374 for (const auto &Prefix : VerifyPrefixes) { 2375 // Every prefix must start with a letter and contain only alphanumeric 2376 // characters, hyphens, and underscores. 2377 auto BadChar = llvm::find_if(Prefix, [](char C) { 2378 return !isAlphanumeric(C) && C != '-' && C != '_'; 2379 }); 2380 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2381 Success = false; 2382 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2383 Diags.Report(diag::note_drv_verify_prefix_spelling); 2384 } 2385 } 2386 return Success; 2387 } 2388 2389 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2390 ArgumentConsumer Consumer) { 2391 const FileSystemOptions &FileSystemOpts = Opts; 2392 2393 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2394 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2395 #include "clang/Driver/Options.inc" 2396 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2397 } 2398 2399 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2400 DiagnosticsEngine &Diags) { 2401 unsigned NumErrorsBefore = Diags.getNumErrors(); 2402 2403 FileSystemOptions &FileSystemOpts = Opts; 2404 2405 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2406 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2407 #include "clang/Driver/Options.inc" 2408 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2409 2410 return Diags.getNumErrors() == NumErrorsBefore; 2411 } 2412 2413 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2414 ArgumentConsumer Consumer) { 2415 const MigratorOptions &MigratorOpts = Opts; 2416 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2417 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2418 #include "clang/Driver/Options.inc" 2419 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2420 } 2421 2422 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2423 DiagnosticsEngine &Diags) { 2424 unsigned NumErrorsBefore = Diags.getNumErrors(); 2425 2426 MigratorOptions &MigratorOpts = Opts; 2427 2428 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2429 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2430 #include "clang/Driver/Options.inc" 2431 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2432 2433 return Diags.getNumErrors() == NumErrorsBefore; 2434 } 2435 2436 void CompilerInvocationBase::GenerateDiagnosticArgs( 2437 const DiagnosticOptions &Opts, ArgumentConsumer Consumer, 2438 bool DefaultDiagColor) { 2439 const DiagnosticOptions *DiagnosticOpts = &Opts; 2440 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2441 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2442 #include "clang/Driver/Options.inc" 2443 #undef DIAG_OPTION_WITH_MARSHALLING 2444 2445 if (!Opts.DiagnosticSerializationFile.empty()) 2446 GenerateArg(Consumer, OPT_diagnostic_serialized_file, 2447 Opts.DiagnosticSerializationFile); 2448 2449 if (Opts.ShowColors) 2450 GenerateArg(Consumer, OPT_fcolor_diagnostics); 2451 2452 if (Opts.VerifyDiagnostics && 2453 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2454 GenerateArg(Consumer, OPT_verify); 2455 2456 for (const auto &Prefix : Opts.VerifyPrefixes) 2457 if (Prefix != "expected") 2458 GenerateArg(Consumer, OPT_verify_EQ, Prefix); 2459 2460 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2461 if (VIU == DiagnosticLevelMask::None) { 2462 // This is the default, don't generate anything. 2463 } else if (VIU == DiagnosticLevelMask::All) { 2464 GenerateArg(Consumer, OPT_verify_ignore_unexpected); 2465 } else { 2466 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2467 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "note"); 2468 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2469 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "remark"); 2470 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2471 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "warning"); 2472 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2473 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "error"); 2474 } 2475 2476 for (const auto &Warning : Opts.Warnings) { 2477 // This option is automatically generated from UndefPrefixes. 2478 if (Warning == "undef-prefix") 2479 continue; 2480 // This option is automatically generated from CheckConstexprFunctionBodies. 2481 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr") 2482 continue; 2483 Consumer(StringRef("-W") + Warning); 2484 } 2485 2486 for (const auto &Remark : Opts.Remarks) { 2487 // These arguments are generated from OptimizationRemark fields of 2488 // CodeGenOptions. 2489 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2490 "pass-analysis", "no-pass-analysis", 2491 "pass-missed", "no-pass-missed"}; 2492 if (llvm::is_contained(IgnoredRemarks, Remark)) 2493 continue; 2494 2495 Consumer(StringRef("-R") + Remark); 2496 } 2497 } 2498 2499 std::unique_ptr<DiagnosticOptions> 2500 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2501 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2502 unsigned MissingArgIndex, MissingArgCount; 2503 InputArgList Args = getDriverOptTable().ParseArgs( 2504 Argv.slice(1), MissingArgIndex, MissingArgCount); 2505 2506 bool ShowColors = true; 2507 if (std::optional<std::string> NoColor = 2508 llvm::sys::Process::GetEnv("NO_COLOR"); 2509 NoColor && !NoColor->empty()) { 2510 // If the user set the NO_COLOR environment variable, we'll honor that 2511 // unless the command line overrides it. 2512 ShowColors = false; 2513 } 2514 2515 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2516 // Any errors that would be diagnosed here will also be diagnosed later, 2517 // when the DiagnosticsEngine actually exists. 2518 (void)ParseDiagnosticArgs(*DiagOpts, Args, /*Diags=*/nullptr, ShowColors); 2519 return DiagOpts; 2520 } 2521 2522 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2523 DiagnosticsEngine *Diags, 2524 bool DefaultDiagColor) { 2525 std::optional<DiagnosticsEngine> IgnoringDiags; 2526 if (!Diags) { 2527 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2528 new IgnoringDiagConsumer()); 2529 Diags = &*IgnoringDiags; 2530 } 2531 2532 unsigned NumErrorsBefore = Diags->getNumErrors(); 2533 2534 // The key paths of diagnostic options defined in Options.td start with 2535 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2536 DiagnosticOptions *DiagnosticOpts = &Opts; 2537 2538 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2539 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__) 2540 #include "clang/Driver/Options.inc" 2541 #undef DIAG_OPTION_WITH_MARSHALLING 2542 2543 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2544 2545 if (Arg *A = 2546 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2547 Opts.DiagnosticSerializationFile = A->getValue(); 2548 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2549 2550 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2551 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2552 if (Args.hasArg(OPT_verify)) 2553 Opts.VerifyPrefixes.push_back("expected"); 2554 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2555 // then sort it to prepare for fast lookup using std::binary_search. 2556 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2557 Opts.VerifyDiagnostics = false; 2558 else 2559 llvm::sort(Opts.VerifyPrefixes); 2560 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2561 parseDiagnosticLevelMask( 2562 "-verify-ignore-unexpected=", 2563 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2564 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2565 DiagMask = DiagnosticLevelMask::All; 2566 Opts.setVerifyIgnoreUnexpected(DiagMask); 2567 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2568 Diags->Report(diag::warn_ignoring_ftabstop_value) 2569 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2570 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2571 } 2572 2573 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2574 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2575 2576 return Diags->getNumErrors() == NumErrorsBefore; 2577 } 2578 2579 /// Parse the argument to the -ftest-module-file-extension 2580 /// command-line argument. 2581 /// 2582 /// \returns true on error, false on success. 2583 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2584 std::string &BlockName, 2585 unsigned &MajorVersion, 2586 unsigned &MinorVersion, 2587 bool &Hashed, 2588 std::string &UserInfo) { 2589 SmallVector<StringRef, 5> Args; 2590 Arg.split(Args, ':', 5); 2591 if (Args.size() < 5) 2592 return true; 2593 2594 BlockName = std::string(Args[0]); 2595 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2596 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2597 if (Args[3].getAsInteger(2, Hashed)) return true; 2598 if (Args.size() > 4) 2599 UserInfo = std::string(Args[4]); 2600 return false; 2601 } 2602 2603 /// Return a table that associates command line option specifiers with the 2604 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2605 /// intentionally missing, as this case is handled separately from other 2606 /// frontend options. 2607 static const auto &getFrontendActionTable() { 2608 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2609 {frontend::ASTDeclList, OPT_ast_list}, 2610 2611 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2612 {frontend::ASTDump, OPT_ast_dump_all}, 2613 {frontend::ASTDump, OPT_ast_dump_EQ}, 2614 {frontend::ASTDump, OPT_ast_dump}, 2615 {frontend::ASTDump, OPT_ast_dump_lookups}, 2616 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2617 2618 {frontend::ASTPrint, OPT_ast_print}, 2619 {frontend::ASTView, OPT_ast_view}, 2620 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2621 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2622 {frontend::DumpTokens, OPT_dump_tokens}, 2623 {frontend::EmitAssembly, OPT_S}, 2624 {frontend::EmitBC, OPT_emit_llvm_bc}, 2625 {frontend::EmitCIR, OPT_emit_cir}, 2626 {frontend::EmitHTML, OPT_emit_html}, 2627 {frontend::EmitLLVM, OPT_emit_llvm}, 2628 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2629 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2630 {frontend::EmitObj, OPT_emit_obj}, 2631 {frontend::ExtractAPI, OPT_extract_api}, 2632 2633 {frontend::FixIt, OPT_fixit_EQ}, 2634 {frontend::FixIt, OPT_fixit}, 2635 2636 {frontend::GenerateModule, OPT_emit_module}, 2637 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2638 {frontend::GenerateReducedModuleInterface, 2639 OPT_emit_reduced_module_interface}, 2640 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2641 {frontend::GeneratePCH, OPT_emit_pch}, 2642 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2643 {frontend::InitOnly, OPT_init_only}, 2644 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2645 {frontend::ModuleFileInfo, OPT_module_file_info}, 2646 {frontend::VerifyPCH, OPT_verify_pch}, 2647 {frontend::PrintPreamble, OPT_print_preamble}, 2648 {frontend::PrintPreprocessedInput, OPT_E}, 2649 {frontend::TemplightDump, OPT_templight_dump}, 2650 {frontend::RewriteMacros, OPT_rewrite_macros}, 2651 {frontend::RewriteObjC, OPT_rewrite_objc}, 2652 {frontend::RewriteTest, OPT_rewrite_test}, 2653 {frontend::RunAnalysis, OPT_analyze}, 2654 {frontend::MigrateSource, OPT_migrate}, 2655 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2656 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2657 OPT_print_dependency_directives_minimized_source}, 2658 }; 2659 2660 return Table; 2661 } 2662 2663 /// Maps command line option to frontend action. 2664 static std::optional<frontend::ActionKind> 2665 getFrontendAction(OptSpecifier &Opt) { 2666 for (const auto &ActionOpt : getFrontendActionTable()) 2667 if (ActionOpt.second == Opt.getID()) 2668 return ActionOpt.first; 2669 2670 return std::nullopt; 2671 } 2672 2673 /// Maps frontend action to command line option. 2674 static std::optional<OptSpecifier> 2675 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2676 for (const auto &ActionOpt : getFrontendActionTable()) 2677 if (ActionOpt.first == ProgramAction) 2678 return OptSpecifier(ActionOpt.second); 2679 2680 return std::nullopt; 2681 } 2682 2683 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2684 ArgumentConsumer Consumer, bool IsHeader) { 2685 const FrontendOptions &FrontendOpts = Opts; 2686 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2687 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2688 #include "clang/Driver/Options.inc" 2689 #undef FRONTEND_OPTION_WITH_MARSHALLING 2690 2691 std::optional<OptSpecifier> ProgramActionOpt = 2692 getProgramActionOpt(Opts.ProgramAction); 2693 2694 // Generating a simple flag covers most frontend actions. 2695 std::function<void()> GenerateProgramAction = [&]() { 2696 GenerateArg(Consumer, *ProgramActionOpt); 2697 }; 2698 2699 if (!ProgramActionOpt) { 2700 // PluginAction is the only program action handled separately. 2701 assert(Opts.ProgramAction == frontend::PluginAction && 2702 "Frontend action without option."); 2703 GenerateProgramAction = [&]() { 2704 GenerateArg(Consumer, OPT_plugin, Opts.ActionName); 2705 }; 2706 } 2707 2708 // FIXME: Simplify the complex 'AST dump' command line. 2709 if (Opts.ProgramAction == frontend::ASTDump) { 2710 GenerateProgramAction = [&]() { 2711 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2712 // marshalling infrastructure. 2713 2714 if (Opts.ASTDumpFormat != ADOF_Default) { 2715 StringRef Format; 2716 switch (Opts.ASTDumpFormat) { 2717 case ADOF_Default: 2718 llvm_unreachable("Default AST dump format."); 2719 case ADOF_JSON: 2720 Format = "json"; 2721 break; 2722 } 2723 2724 if (Opts.ASTDumpAll) 2725 GenerateArg(Consumer, OPT_ast_dump_all_EQ, Format); 2726 if (Opts.ASTDumpDecls) 2727 GenerateArg(Consumer, OPT_ast_dump_EQ, Format); 2728 } else { 2729 if (Opts.ASTDumpAll) 2730 GenerateArg(Consumer, OPT_ast_dump_all); 2731 if (Opts.ASTDumpDecls) 2732 GenerateArg(Consumer, OPT_ast_dump); 2733 } 2734 }; 2735 } 2736 2737 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2738 GenerateProgramAction = [&]() { 2739 GenerateArg(Consumer, OPT_fixit_EQ, Opts.FixItSuffix); 2740 }; 2741 } 2742 2743 GenerateProgramAction(); 2744 2745 for (const auto &PluginArgs : Opts.PluginArgs) { 2746 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2747 for (const auto &PluginArg : PluginArgs.second) 2748 denormalizeString(Consumer, 2749 Opt.getPrefix() + Opt.getName() + PluginArgs.first, 2750 Opt.getKind(), 0, PluginArg); 2751 } 2752 2753 for (const auto &Ext : Opts.ModuleFileExtensions) 2754 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2755 GenerateArg(Consumer, OPT_ftest_module_file_extension_EQ, TestExt->str()); 2756 2757 if (!Opts.CodeCompletionAt.FileName.empty()) 2758 GenerateArg(Consumer, OPT_code_completion_at, 2759 Opts.CodeCompletionAt.ToString()); 2760 2761 for (const auto &Plugin : Opts.Plugins) 2762 GenerateArg(Consumer, OPT_load, Plugin); 2763 2764 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2765 2766 for (const auto &ModuleFile : Opts.ModuleFiles) 2767 GenerateArg(Consumer, OPT_fmodule_file, ModuleFile); 2768 2769 if (Opts.AuxTargetCPU) 2770 GenerateArg(Consumer, OPT_aux_target_cpu, *Opts.AuxTargetCPU); 2771 2772 if (Opts.AuxTargetFeatures) 2773 for (const auto &Feature : *Opts.AuxTargetFeatures) 2774 GenerateArg(Consumer, OPT_aux_target_feature, Feature); 2775 2776 { 2777 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2778 StringRef ModuleMap = 2779 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2780 StringRef HeaderUnit = ""; 2781 switch (Opts.DashX.getHeaderUnitKind()) { 2782 case InputKind::HeaderUnit_None: 2783 break; 2784 case InputKind::HeaderUnit_User: 2785 HeaderUnit = "-user"; 2786 break; 2787 case InputKind::HeaderUnit_System: 2788 HeaderUnit = "-system"; 2789 break; 2790 case InputKind::HeaderUnit_Abs: 2791 HeaderUnit = "-header-unit"; 2792 break; 2793 } 2794 StringRef Header = IsHeader ? "-header" : ""; 2795 2796 StringRef Lang; 2797 switch (Opts.DashX.getLanguage()) { 2798 case Language::C: 2799 Lang = "c"; 2800 break; 2801 case Language::OpenCL: 2802 Lang = "cl"; 2803 break; 2804 case Language::OpenCLCXX: 2805 Lang = "clcpp"; 2806 break; 2807 case Language::CUDA: 2808 Lang = "cuda"; 2809 break; 2810 case Language::HIP: 2811 Lang = "hip"; 2812 break; 2813 case Language::CXX: 2814 Lang = "c++"; 2815 break; 2816 case Language::ObjC: 2817 Lang = "objective-c"; 2818 break; 2819 case Language::ObjCXX: 2820 Lang = "objective-c++"; 2821 break; 2822 case Language::RenderScript: 2823 Lang = "renderscript"; 2824 break; 2825 case Language::Asm: 2826 Lang = "assembler-with-cpp"; 2827 break; 2828 case Language::Unknown: 2829 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2830 "Generating -x argument for unknown language (not precompiled)."); 2831 Lang = "ast"; 2832 break; 2833 case Language::LLVM_IR: 2834 Lang = "ir"; 2835 break; 2836 case Language::HLSL: 2837 Lang = "hlsl"; 2838 break; 2839 case Language::CIR: 2840 Lang = "cir"; 2841 break; 2842 } 2843 2844 GenerateArg(Consumer, OPT_x, 2845 Lang + HeaderUnit + Header + ModuleMap + Preprocessed); 2846 } 2847 2848 // OPT_INPUT has a unique class, generate it directly. 2849 for (const auto &Input : Opts.Inputs) 2850 Consumer(Input.getFile()); 2851 } 2852 2853 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2854 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2855 unsigned NumErrorsBefore = Diags.getNumErrors(); 2856 2857 FrontendOptions &FrontendOpts = Opts; 2858 2859 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2860 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2861 #include "clang/Driver/Options.inc" 2862 #undef FRONTEND_OPTION_WITH_MARSHALLING 2863 2864 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2865 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2866 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2867 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2868 assert(ProgramAction && "Option specifier not in Action_Group."); 2869 2870 if (ProgramAction == frontend::ASTDump && 2871 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2872 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2873 .CaseLower("default", ADOF_Default) 2874 .CaseLower("json", ADOF_JSON) 2875 .Default(std::numeric_limits<unsigned>::max()); 2876 2877 if (Val != std::numeric_limits<unsigned>::max()) 2878 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2879 else { 2880 Diags.Report(diag::err_drv_invalid_value) 2881 << A->getAsString(Args) << A->getValue(); 2882 Opts.ASTDumpFormat = ADOF_Default; 2883 } 2884 } 2885 2886 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2887 Opts.FixItSuffix = A->getValue(); 2888 2889 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2890 StringRef ArgStr = 2891 Args.hasArg(OPT_interface_stub_version_EQ) 2892 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2893 : "ifs-v1"; 2894 if (ArgStr == "experimental-yaml-elf-v1" || 2895 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2896 ArgStr == "experimental-tapi-elf-v1") { 2897 std::string ErrorMessage = 2898 "Invalid interface stub format: " + ArgStr.str() + 2899 " is deprecated."; 2900 Diags.Report(diag::err_drv_invalid_value) 2901 << "Must specify a valid interface stub format type, ie: " 2902 "-interface-stub-version=ifs-v1" 2903 << ErrorMessage; 2904 ProgramAction = frontend::ParseSyntaxOnly; 2905 } else if (!ArgStr.starts_with("ifs-")) { 2906 std::string ErrorMessage = 2907 "Invalid interface stub format: " + ArgStr.str() + "."; 2908 Diags.Report(diag::err_drv_invalid_value) 2909 << "Must specify a valid interface stub format type, ie: " 2910 "-interface-stub-version=ifs-v1" 2911 << ErrorMessage; 2912 ProgramAction = frontend::ParseSyntaxOnly; 2913 } 2914 } 2915 2916 Opts.ProgramAction = *ProgramAction; 2917 2918 // Catch common mistakes when multiple actions are specified for cc1 (e.g. 2919 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to 2920 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name 2921 // X ACTION), we suppress the error when the two actions are separated by 2922 // -main-file-name. 2923 // 2924 // As an exception, accept composable -ast-dump*. 2925 if (!A->getSpelling().starts_with("-ast-dump")) { 2926 const Arg *SavedAction = nullptr; 2927 for (const Arg *AA : 2928 Args.filtered(OPT_Action_Group, OPT_main_file_name)) { 2929 if (AA->getOption().matches(OPT_main_file_name)) { 2930 SavedAction = nullptr; 2931 } else if (!SavedAction) { 2932 SavedAction = AA; 2933 } else { 2934 if (!A->getOption().matches(OPT_ast_dump_EQ)) 2935 Diags.Report(diag::err_fe_invalid_multiple_actions) 2936 << SavedAction->getSpelling() << A->getSpelling(); 2937 break; 2938 } 2939 } 2940 } 2941 } 2942 2943 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2944 Opts.Plugins.emplace_back(A->getValue(0)); 2945 Opts.ProgramAction = frontend::PluginAction; 2946 Opts.ActionName = A->getValue(); 2947 } 2948 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2949 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2950 2951 for (const std::string &Arg : 2952 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2953 std::string BlockName; 2954 unsigned MajorVersion; 2955 unsigned MinorVersion; 2956 bool Hashed; 2957 std::string UserInfo; 2958 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2959 MinorVersion, Hashed, UserInfo)) { 2960 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2961 2962 continue; 2963 } 2964 2965 // Add the testing module file extension. 2966 Opts.ModuleFileExtensions.push_back( 2967 std::make_shared<TestModuleFileExtension>( 2968 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2969 } 2970 2971 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2972 Opts.CodeCompletionAt = 2973 ParsedSourceLocation::FromString(A->getValue()); 2974 if (Opts.CodeCompletionAt.FileName.empty()) 2975 Diags.Report(diag::err_drv_invalid_value) 2976 << A->getAsString(Args) << A->getValue(); 2977 } 2978 2979 Opts.Plugins = Args.getAllArgValues(OPT_load); 2980 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2981 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2982 // Only the -fmodule-file=<file> form. 2983 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2984 StringRef Val = A->getValue(); 2985 if (!Val.contains('=')) 2986 Opts.ModuleFiles.push_back(std::string(Val)); 2987 } 2988 2989 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2990 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2991 << "-emit-module"; 2992 if (Args.hasArg(OPT_fclangir) || Args.hasArg(OPT_emit_cir)) 2993 Opts.UseClangIRPipeline = true; 2994 2995 if (Args.hasArg(OPT_aux_target_cpu)) 2996 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2997 if (Args.hasArg(OPT_aux_target_feature)) 2998 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2999 3000 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 3001 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 3002 Diags.Report(diag::err_drv_argument_not_allowed_with) 3003 << "ARC migration" << "ObjC migration"; 3004 } 3005 3006 InputKind DashX(Language::Unknown); 3007 if (const Arg *A = Args.getLastArg(OPT_x)) { 3008 StringRef XValue = A->getValue(); 3009 3010 // Parse suffixes: 3011 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 3012 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 3013 bool Preprocessed = XValue.consume_back("-cpp-output"); 3014 bool ModuleMap = XValue.consume_back("-module-map"); 3015 // Detect and consume the header indicator. 3016 bool IsHeader = 3017 XValue != "precompiled-header" && XValue.consume_back("-header"); 3018 3019 // If we have c++-{user,system}-header, that indicates a header unit input 3020 // likewise, if the user put -fmodule-header together with a header with an 3021 // absolute path (header-unit-header). 3022 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 3023 if (IsHeader || Preprocessed) { 3024 if (XValue.consume_back("-header-unit")) 3025 HUK = InputKind::HeaderUnit_Abs; 3026 else if (XValue.consume_back("-system")) 3027 HUK = InputKind::HeaderUnit_System; 3028 else if (XValue.consume_back("-user")) 3029 HUK = InputKind::HeaderUnit_User; 3030 } 3031 3032 // The value set by this processing is an un-preprocessed source which is 3033 // not intended to be a module map or header unit. 3034 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 3035 HUK == InputKind::HeaderUnit_None; 3036 3037 // Principal languages. 3038 DashX = llvm::StringSwitch<InputKind>(XValue) 3039 .Case("c", Language::C) 3040 .Case("cl", Language::OpenCL) 3041 .Case("clcpp", Language::OpenCLCXX) 3042 .Case("cuda", Language::CUDA) 3043 .Case("hip", Language::HIP) 3044 .Case("c++", Language::CXX) 3045 .Case("objective-c", Language::ObjC) 3046 .Case("objective-c++", Language::ObjCXX) 3047 .Case("renderscript", Language::RenderScript) 3048 .Case("hlsl", Language::HLSL) 3049 .Default(Language::Unknown); 3050 3051 // "objc[++]-cpp-output" is an acceptable synonym for 3052 // "objective-c[++]-cpp-output". 3053 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 3054 HUK == InputKind::HeaderUnit_None) 3055 DashX = llvm::StringSwitch<InputKind>(XValue) 3056 .Case("objc", Language::ObjC) 3057 .Case("objc++", Language::ObjCXX) 3058 .Default(Language::Unknown); 3059 3060 // Some special cases cannot be combined with suffixes. 3061 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 3062 HUK == InputKind::HeaderUnit_None) 3063 DashX = llvm::StringSwitch<InputKind>(XValue) 3064 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 3065 .Case("assembler-with-cpp", Language::Asm) 3066 .Cases("ast", "pcm", "precompiled-header", 3067 InputKind(Language::Unknown, InputKind::Precompiled)) 3068 .Case("ir", Language::LLVM_IR) 3069 .Case("cir", Language::CIR) 3070 .Default(Language::Unknown); 3071 3072 if (DashX.isUnknown()) 3073 Diags.Report(diag::err_drv_invalid_value) 3074 << A->getAsString(Args) << A->getValue(); 3075 3076 if (Preprocessed) 3077 DashX = DashX.getPreprocessed(); 3078 // A regular header is considered mutually exclusive with a header unit. 3079 if (HUK != InputKind::HeaderUnit_None) { 3080 DashX = DashX.withHeaderUnit(HUK); 3081 IsHeaderFile = true; 3082 } else if (IsHeaderFile) 3083 DashX = DashX.getHeader(); 3084 if (ModuleMap) 3085 DashX = DashX.withFormat(InputKind::ModuleMap); 3086 } 3087 3088 // '-' is the default input if none is given. 3089 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 3090 Opts.Inputs.clear(); 3091 if (Inputs.empty()) 3092 Inputs.push_back("-"); 3093 3094 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 3095 Inputs.size() > 1) 3096 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 3097 3098 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 3099 InputKind IK = DashX; 3100 if (IK.isUnknown()) { 3101 IK = FrontendOptions::getInputKindForExtension( 3102 StringRef(Inputs[i]).rsplit('.').second); 3103 // FIXME: Warn on this? 3104 if (IK.isUnknown()) 3105 IK = Language::C; 3106 // FIXME: Remove this hack. 3107 if (i == 0) 3108 DashX = IK; 3109 } 3110 3111 bool IsSystem = false; 3112 3113 // The -emit-module action implicitly takes a module map. 3114 if (Opts.ProgramAction == frontend::GenerateModule && 3115 IK.getFormat() == InputKind::Source) { 3116 IK = IK.withFormat(InputKind::ModuleMap); 3117 IsSystem = Opts.IsSystemModule; 3118 } 3119 3120 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 3121 } 3122 3123 Opts.DashX = DashX; 3124 3125 return Diags.getNumErrors() == NumErrorsBefore; 3126 } 3127 3128 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 3129 void *MainAddr) { 3130 std::string ClangExecutable = 3131 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 3132 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 3133 } 3134 3135 static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts, 3136 ArgumentConsumer Consumer) { 3137 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 3138 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3139 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3140 #include "clang/Driver/Options.inc" 3141 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3142 3143 if (Opts.UseLibcxx) 3144 GenerateArg(Consumer, OPT_stdlib_EQ, "libc++"); 3145 3146 if (!Opts.ModuleCachePath.empty()) 3147 GenerateArg(Consumer, OPT_fmodules_cache_path, Opts.ModuleCachePath); 3148 3149 for (const auto &File : Opts.PrebuiltModuleFiles) 3150 GenerateArg(Consumer, OPT_fmodule_file, File.first + "=" + File.second); 3151 3152 for (const auto &Path : Opts.PrebuiltModulePaths) 3153 GenerateArg(Consumer, OPT_fprebuilt_module_path, Path); 3154 3155 for (const auto &Macro : Opts.ModulesIgnoreMacros) 3156 GenerateArg(Consumer, OPT_fmodules_ignore_macro, Macro.val()); 3157 3158 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3159 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3160 std::optional<bool> IsFramework, 3161 std::optional<bool> IgnoreSysRoot) { 3162 return llvm::is_contained(Groups, Entry.Group) && 3163 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3164 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3165 }; 3166 3167 auto It = Opts.UserEntries.begin(); 3168 auto End = Opts.UserEntries.end(); 3169 3170 // Add -I..., -F..., and -index-header-map options in order. 3171 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3172 std::nullopt, true); 3173 ++It) { 3174 OptSpecifier Opt = [It, Matches]() { 3175 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3176 return OPT_F; 3177 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3178 return OPT_I; 3179 if (Matches(*It, frontend::Angled, true, true)) 3180 return OPT_F; 3181 if (Matches(*It, frontend::Angled, false, true)) 3182 return OPT_I; 3183 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3184 }(); 3185 3186 if (It->Group == frontend::IndexHeaderMap) 3187 GenerateArg(Consumer, OPT_index_header_map); 3188 GenerateArg(Consumer, Opt, It->Path); 3189 }; 3190 3191 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3192 // have already been generated as "-I[xx]yy". If that's the case, their 3193 // position on command line was such that this has no semantic impact on 3194 // include paths. 3195 for (; It < End && 3196 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3197 ++It) { 3198 OptSpecifier Opt = 3199 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3200 GenerateArg(Consumer, Opt, It->Path); 3201 } 3202 3203 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3204 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3205 // command line was such that this has no semantic impact on include paths. 3206 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3207 GenerateArg(Consumer, OPT_idirafter, It->Path); 3208 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3209 GenerateArg(Consumer, OPT_iquote, It->Path); 3210 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3211 ++It) 3212 GenerateArg(Consumer, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3213 It->Path); 3214 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3215 GenerateArg(Consumer, OPT_iframework, It->Path); 3216 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3217 GenerateArg(Consumer, OPT_iframeworkwithsysroot, It->Path); 3218 3219 // Add the paths for the various language specific isystem flags. 3220 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3221 GenerateArg(Consumer, OPT_c_isystem, It->Path); 3222 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3223 GenerateArg(Consumer, OPT_cxx_isystem, It->Path); 3224 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3225 GenerateArg(Consumer, OPT_objc_isystem, It->Path); 3226 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3227 GenerateArg(Consumer, OPT_objcxx_isystem, It->Path); 3228 3229 // Add the internal paths from a driver that detects standard include paths. 3230 // Note: Some paths that came from "-internal-isystem" arguments may have 3231 // already been generated as "-isystem". If that's the case, their position on 3232 // command line was such that this has no semantic impact on include paths. 3233 for (; It < End && 3234 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3235 ++It) { 3236 OptSpecifier Opt = It->Group == frontend::System 3237 ? OPT_internal_isystem 3238 : OPT_internal_externc_isystem; 3239 GenerateArg(Consumer, Opt, It->Path); 3240 } 3241 3242 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3243 3244 // Add the path prefixes which are implicitly treated as being system headers. 3245 for (const auto &P : Opts.SystemHeaderPrefixes) { 3246 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3247 : OPT_no_system_header_prefix; 3248 GenerateArg(Consumer, Opt, P.Prefix); 3249 } 3250 3251 for (const std::string &F : Opts.VFSOverlayFiles) 3252 GenerateArg(Consumer, OPT_ivfsoverlay, F); 3253 } 3254 3255 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3256 DiagnosticsEngine &Diags, 3257 const std::string &WorkingDir) { 3258 unsigned NumErrorsBefore = Diags.getNumErrors(); 3259 3260 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3261 3262 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3263 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3264 #include "clang/Driver/Options.inc" 3265 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3266 3267 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3268 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3269 3270 // Canonicalize -fmodules-cache-path before storing it. 3271 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3272 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3273 if (WorkingDir.empty()) 3274 llvm::sys::fs::make_absolute(P); 3275 else 3276 llvm::sys::fs::make_absolute(WorkingDir, P); 3277 } 3278 llvm::sys::path::remove_dots(P); 3279 Opts.ModuleCachePath = std::string(P); 3280 3281 // Only the -fmodule-file=<name>=<file> form. 3282 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3283 StringRef Val = A->getValue(); 3284 if (Val.contains('=')) { 3285 auto Split = Val.split('='); 3286 Opts.PrebuiltModuleFiles.insert_or_assign( 3287 std::string(Split.first), std::string(Split.second)); 3288 } 3289 } 3290 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3291 Opts.AddPrebuiltModulePath(A->getValue()); 3292 3293 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3294 StringRef MacroDef = A->getValue(); 3295 Opts.ModulesIgnoreMacros.insert( 3296 llvm::CachedHashString(MacroDef.split('=').first)); 3297 } 3298 3299 // Add -I..., -F..., and -index-header-map options in order. 3300 bool IsIndexHeaderMap = false; 3301 bool IsSysrootSpecified = 3302 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3303 3304 // Expand a leading `=` to the sysroot if one was passed (and it's not a 3305 // framework flag). 3306 auto PrefixHeaderPath = [IsSysrootSpecified, 3307 &Opts](const llvm::opt::Arg *A, 3308 bool IsFramework = false) -> std::string { 3309 assert(A->getNumValues() && "Unexpected empty search path flag!"); 3310 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3311 SmallString<32> Buffer; 3312 llvm::sys::path::append(Buffer, Opts.Sysroot, 3313 llvm::StringRef(A->getValue()).substr(1)); 3314 return std::string(Buffer); 3315 } 3316 return A->getValue(); 3317 }; 3318 3319 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3320 if (A->getOption().matches(OPT_index_header_map)) { 3321 // -index-header-map applies to the next -I or -F. 3322 IsIndexHeaderMap = true; 3323 continue; 3324 } 3325 3326 frontend::IncludeDirGroup Group = 3327 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3328 3329 bool IsFramework = A->getOption().matches(OPT_F); 3330 Opts.AddPath(PrefixHeaderPath(A, IsFramework), Group, IsFramework, 3331 /*IgnoreSysroot*/ true); 3332 IsIndexHeaderMap = false; 3333 } 3334 3335 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3336 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3337 for (const auto *A : 3338 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3339 if (A->getOption().matches(OPT_iprefix)) 3340 Prefix = A->getValue(); 3341 else if (A->getOption().matches(OPT_iwithprefix)) 3342 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3343 else 3344 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3345 } 3346 3347 for (const auto *A : Args.filtered(OPT_idirafter)) 3348 Opts.AddPath(PrefixHeaderPath(A), frontend::After, false, true); 3349 for (const auto *A : Args.filtered(OPT_iquote)) 3350 Opts.AddPath(PrefixHeaderPath(A), frontend::Quoted, false, true); 3351 3352 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) { 3353 if (A->getOption().matches(OPT_iwithsysroot)) { 3354 Opts.AddPath(A->getValue(), frontend::System, false, 3355 /*IgnoreSysRoot=*/false); 3356 continue; 3357 } 3358 Opts.AddPath(PrefixHeaderPath(A), frontend::System, false, true); 3359 } 3360 for (const auto *A : Args.filtered(OPT_iframework)) 3361 Opts.AddPath(A->getValue(), frontend::System, true, true); 3362 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3363 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3364 /*IgnoreSysRoot=*/false); 3365 3366 // Add the paths for the various language specific isystem flags. 3367 for (const auto *A : Args.filtered(OPT_c_isystem)) 3368 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3369 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3370 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3371 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3372 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3373 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3374 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3375 3376 // Add the internal paths from a driver that detects standard include paths. 3377 for (const auto *A : 3378 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3379 frontend::IncludeDirGroup Group = frontend::System; 3380 if (A->getOption().matches(OPT_internal_externc_isystem)) 3381 Group = frontend::ExternCSystem; 3382 Opts.AddPath(A->getValue(), Group, false, true); 3383 } 3384 3385 // Add the path prefixes which are implicitly treated as being system headers. 3386 for (const auto *A : 3387 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3388 Opts.AddSystemHeaderPrefix( 3389 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3390 3391 for (const auto *A : Args.filtered(OPT_ivfsoverlay, OPT_vfsoverlay)) 3392 Opts.AddVFSOverlayFile(A->getValue()); 3393 3394 return Diags.getNumErrors() == NumErrorsBefore; 3395 } 3396 3397 static void GenerateAPINotesArgs(const APINotesOptions &Opts, 3398 ArgumentConsumer Consumer) { 3399 if (!Opts.SwiftVersion.empty()) 3400 GenerateArg(Consumer, OPT_fapinotes_swift_version, 3401 Opts.SwiftVersion.getAsString()); 3402 3403 for (const auto &Path : Opts.ModuleSearchPaths) 3404 GenerateArg(Consumer, OPT_iapinotes_modules, Path); 3405 } 3406 3407 static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args, 3408 DiagnosticsEngine &diags) { 3409 if (const Arg *A = Args.getLastArg(OPT_fapinotes_swift_version)) { 3410 if (Opts.SwiftVersion.tryParse(A->getValue())) 3411 diags.Report(diag::err_drv_invalid_value) 3412 << A->getAsString(Args) << A->getValue(); 3413 } 3414 for (const Arg *A : Args.filtered(OPT_iapinotes_modules)) 3415 Opts.ModuleSearchPaths.push_back(A->getValue()); 3416 } 3417 3418 static void GeneratePointerAuthArgs(const LangOptions &Opts, 3419 ArgumentConsumer Consumer) { 3420 if (Opts.PointerAuthIntrinsics) 3421 GenerateArg(Consumer, OPT_fptrauth_intrinsics); 3422 if (Opts.PointerAuthCalls) 3423 GenerateArg(Consumer, OPT_fptrauth_calls); 3424 if (Opts.PointerAuthReturns) 3425 GenerateArg(Consumer, OPT_fptrauth_returns); 3426 if (Opts.PointerAuthIndirectGotos) 3427 GenerateArg(Consumer, OPT_fptrauth_indirect_gotos); 3428 if (Opts.PointerAuthAuthTraps) 3429 GenerateArg(Consumer, OPT_fptrauth_auth_traps); 3430 if (Opts.PointerAuthVTPtrAddressDiscrimination) 3431 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_address_discrimination); 3432 if (Opts.PointerAuthVTPtrTypeDiscrimination) 3433 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_type_discrimination); 3434 if (Opts.PointerAuthTypeInfoVTPtrDiscrimination) 3435 GenerateArg(Consumer, OPT_fptrauth_type_info_vtable_pointer_discrimination); 3436 if (Opts.PointerAuthFunctionTypeDiscrimination) 3437 GenerateArg(Consumer, OPT_fptrauth_function_pointer_type_discrimination); 3438 if (Opts.PointerAuthInitFini) 3439 GenerateArg(Consumer, OPT_fptrauth_init_fini); 3440 if (Opts.PointerAuthInitFiniAddressDiscrimination) 3441 GenerateArg(Consumer, OPT_fptrauth_init_fini_address_discrimination); 3442 } 3443 3444 static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args, 3445 DiagnosticsEngine &Diags) { 3446 Opts.PointerAuthIntrinsics = Args.hasArg(OPT_fptrauth_intrinsics); 3447 Opts.PointerAuthCalls = Args.hasArg(OPT_fptrauth_calls); 3448 Opts.PointerAuthReturns = Args.hasArg(OPT_fptrauth_returns); 3449 Opts.PointerAuthIndirectGotos = Args.hasArg(OPT_fptrauth_indirect_gotos); 3450 Opts.PointerAuthAuthTraps = Args.hasArg(OPT_fptrauth_auth_traps); 3451 Opts.PointerAuthVTPtrAddressDiscrimination = 3452 Args.hasArg(OPT_fptrauth_vtable_pointer_address_discrimination); 3453 Opts.PointerAuthVTPtrTypeDiscrimination = 3454 Args.hasArg(OPT_fptrauth_vtable_pointer_type_discrimination); 3455 Opts.PointerAuthTypeInfoVTPtrDiscrimination = 3456 Args.hasArg(OPT_fptrauth_type_info_vtable_pointer_discrimination); 3457 Opts.PointerAuthFunctionTypeDiscrimination = 3458 Args.hasArg(OPT_fptrauth_function_pointer_type_discrimination); 3459 Opts.PointerAuthInitFini = Args.hasArg(OPT_fptrauth_init_fini); 3460 Opts.PointerAuthInitFiniAddressDiscrimination = 3461 Args.hasArg(OPT_fptrauth_init_fini_address_discrimination); 3462 } 3463 3464 /// Check if input file kind and language standard are compatible. 3465 static bool IsInputCompatibleWithStandard(InputKind IK, 3466 const LangStandard &S) { 3467 switch (IK.getLanguage()) { 3468 case Language::Unknown: 3469 case Language::LLVM_IR: 3470 case Language::CIR: 3471 llvm_unreachable("should not parse language flags for this input"); 3472 3473 case Language::C: 3474 case Language::ObjC: 3475 case Language::RenderScript: 3476 return S.getLanguage() == Language::C; 3477 3478 case Language::OpenCL: 3479 return S.getLanguage() == Language::OpenCL || 3480 S.getLanguage() == Language::OpenCLCXX; 3481 3482 case Language::OpenCLCXX: 3483 return S.getLanguage() == Language::OpenCLCXX; 3484 3485 case Language::CXX: 3486 case Language::ObjCXX: 3487 return S.getLanguage() == Language::CXX; 3488 3489 case Language::CUDA: 3490 // FIXME: What -std= values should be permitted for CUDA compilations? 3491 return S.getLanguage() == Language::CUDA || 3492 S.getLanguage() == Language::CXX; 3493 3494 case Language::HIP: 3495 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3496 3497 case Language::Asm: 3498 // Accept (and ignore) all -std= values. 3499 // FIXME: The -std= value is not ignored; it affects the tokenization 3500 // and preprocessing rules if we're preprocessing this asm input. 3501 return true; 3502 3503 case Language::HLSL: 3504 return S.getLanguage() == Language::HLSL; 3505 } 3506 3507 llvm_unreachable("unexpected input language"); 3508 } 3509 3510 /// Get language name for given input kind. 3511 static StringRef GetInputKindName(InputKind IK) { 3512 switch (IK.getLanguage()) { 3513 case Language::C: 3514 return "C"; 3515 case Language::ObjC: 3516 return "Objective-C"; 3517 case Language::CXX: 3518 return "C++"; 3519 case Language::ObjCXX: 3520 return "Objective-C++"; 3521 case Language::OpenCL: 3522 return "OpenCL"; 3523 case Language::OpenCLCXX: 3524 return "C++ for OpenCL"; 3525 case Language::CUDA: 3526 return "CUDA"; 3527 case Language::RenderScript: 3528 return "RenderScript"; 3529 case Language::HIP: 3530 return "HIP"; 3531 3532 case Language::Asm: 3533 return "Asm"; 3534 case Language::LLVM_IR: 3535 return "LLVM IR"; 3536 case Language::CIR: 3537 return "Clang IR"; 3538 3539 case Language::HLSL: 3540 return "HLSL"; 3541 3542 case Language::Unknown: 3543 break; 3544 } 3545 llvm_unreachable("unknown input language"); 3546 } 3547 3548 void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts, 3549 ArgumentConsumer Consumer, 3550 const llvm::Triple &T, 3551 InputKind IK) { 3552 if (IK.getFormat() == InputKind::Precompiled || 3553 IK.getLanguage() == Language::LLVM_IR || 3554 IK.getLanguage() == Language::CIR) { 3555 if (Opts.ObjCAutoRefCount) 3556 GenerateArg(Consumer, OPT_fobjc_arc); 3557 if (Opts.PICLevel != 0) 3558 GenerateArg(Consumer, OPT_pic_level, Twine(Opts.PICLevel)); 3559 if (Opts.PIE) 3560 GenerateArg(Consumer, OPT_pic_is_pie); 3561 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3562 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3563 3564 return; 3565 } 3566 3567 OptSpecifier StdOpt; 3568 switch (Opts.LangStd) { 3569 case LangStandard::lang_opencl10: 3570 case LangStandard::lang_opencl11: 3571 case LangStandard::lang_opencl12: 3572 case LangStandard::lang_opencl20: 3573 case LangStandard::lang_opencl30: 3574 case LangStandard::lang_openclcpp10: 3575 case LangStandard::lang_openclcpp2021: 3576 StdOpt = OPT_cl_std_EQ; 3577 break; 3578 default: 3579 StdOpt = OPT_std_EQ; 3580 break; 3581 } 3582 3583 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3584 GenerateArg(Consumer, StdOpt, LangStandard.getName()); 3585 3586 if (Opts.IncludeDefaultHeader) 3587 GenerateArg(Consumer, OPT_finclude_default_header); 3588 if (Opts.DeclareOpenCLBuiltins) 3589 GenerateArg(Consumer, OPT_fdeclare_opencl_builtins); 3590 3591 const LangOptions *LangOpts = &Opts; 3592 3593 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3594 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3595 #include "clang/Driver/Options.inc" 3596 #undef LANG_OPTION_WITH_MARSHALLING 3597 3598 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3599 3600 if (Opts.ObjC) { 3601 GenerateArg(Consumer, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString()); 3602 3603 if (Opts.GC == LangOptions::GCOnly) 3604 GenerateArg(Consumer, OPT_fobjc_gc_only); 3605 else if (Opts.GC == LangOptions::HybridGC) 3606 GenerateArg(Consumer, OPT_fobjc_gc); 3607 else if (Opts.ObjCAutoRefCount == 1) 3608 GenerateArg(Consumer, OPT_fobjc_arc); 3609 3610 if (Opts.ObjCWeakRuntime) 3611 GenerateArg(Consumer, OPT_fobjc_runtime_has_weak); 3612 3613 if (Opts.ObjCWeak) 3614 GenerateArg(Consumer, OPT_fobjc_weak); 3615 3616 if (Opts.ObjCSubscriptingLegacyRuntime) 3617 GenerateArg(Consumer, OPT_fobjc_subscripting_legacy_runtime); 3618 } 3619 3620 if (Opts.GNUCVersion != 0) { 3621 unsigned Major = Opts.GNUCVersion / 100 / 100; 3622 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3623 unsigned Patch = Opts.GNUCVersion % 100; 3624 GenerateArg(Consumer, OPT_fgnuc_version_EQ, 3625 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch)); 3626 } 3627 3628 if (Opts.IgnoreXCOFFVisibility) 3629 GenerateArg(Consumer, OPT_mignore_xcoff_visibility); 3630 3631 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3632 GenerateArg(Consumer, OPT_ftrapv); 3633 GenerateArg(Consumer, OPT_ftrapv_handler, Opts.OverflowHandler); 3634 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3635 GenerateArg(Consumer, OPT_fwrapv); 3636 } 3637 3638 if (Opts.MSCompatibilityVersion != 0) { 3639 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3640 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3641 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3642 GenerateArg(Consumer, OPT_fms_compatibility_version, 3643 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor)); 3644 } 3645 3646 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 3647 T.isOSzOS()) { 3648 if (!Opts.Trigraphs) 3649 GenerateArg(Consumer, OPT_fno_trigraphs); 3650 } else { 3651 if (Opts.Trigraphs) 3652 GenerateArg(Consumer, OPT_ftrigraphs); 3653 } 3654 3655 if (T.isOSzOS() && !Opts.ZOSExt) 3656 GenerateArg(Consumer, OPT_fno_zos_extensions); 3657 else if (Opts.ZOSExt) 3658 GenerateArg(Consumer, OPT_fzos_extensions); 3659 3660 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3661 GenerateArg(Consumer, OPT_fblocks); 3662 3663 if (Opts.ConvergentFunctions && 3664 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice || 3665 Opts.HLSL)) 3666 GenerateArg(Consumer, OPT_fconvergent_functions); 3667 3668 if (Opts.NoBuiltin && !Opts.Freestanding) 3669 GenerateArg(Consumer, OPT_fno_builtin); 3670 3671 if (!Opts.NoBuiltin) 3672 for (const auto &Func : Opts.NoBuiltinFuncs) 3673 GenerateArg(Consumer, OPT_fno_builtin_, Func); 3674 3675 if (Opts.LongDoubleSize == 128) 3676 GenerateArg(Consumer, OPT_mlong_double_128); 3677 else if (Opts.LongDoubleSize == 64) 3678 GenerateArg(Consumer, OPT_mlong_double_64); 3679 else if (Opts.LongDoubleSize == 80) 3680 GenerateArg(Consumer, OPT_mlong_double_80); 3681 3682 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3683 3684 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3685 // '-fopenmp-targets='. 3686 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3687 GenerateArg(Consumer, OPT_fopenmp); 3688 3689 if (Opts.OpenMP != 51) 3690 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3691 3692 if (!Opts.OpenMPUseTLS) 3693 GenerateArg(Consumer, OPT_fnoopenmp_use_tls); 3694 3695 if (Opts.OpenMPIsTargetDevice) 3696 GenerateArg(Consumer, OPT_fopenmp_is_target_device); 3697 3698 if (Opts.OpenMPIRBuilder) 3699 GenerateArg(Consumer, OPT_fopenmp_enable_irbuilder); 3700 } 3701 3702 if (Opts.OpenMPSimd) { 3703 GenerateArg(Consumer, OPT_fopenmp_simd); 3704 3705 if (Opts.OpenMP != 51) 3706 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3707 } 3708 3709 if (Opts.OpenMPThreadSubscription) 3710 GenerateArg(Consumer, OPT_fopenmp_assume_threads_oversubscription); 3711 3712 if (Opts.OpenMPTeamSubscription) 3713 GenerateArg(Consumer, OPT_fopenmp_assume_teams_oversubscription); 3714 3715 if (Opts.OpenMPTargetDebug != 0) 3716 GenerateArg(Consumer, OPT_fopenmp_target_debug_EQ, 3717 Twine(Opts.OpenMPTargetDebug)); 3718 3719 if (Opts.OpenMPCUDANumSMs != 0) 3720 GenerateArg(Consumer, OPT_fopenmp_cuda_number_of_sm_EQ, 3721 Twine(Opts.OpenMPCUDANumSMs)); 3722 3723 if (Opts.OpenMPCUDABlocksPerSM != 0) 3724 GenerateArg(Consumer, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3725 Twine(Opts.OpenMPCUDABlocksPerSM)); 3726 3727 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3728 GenerateArg(Consumer, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3729 Twine(Opts.OpenMPCUDAReductionBufNum)); 3730 3731 if (!Opts.OMPTargetTriples.empty()) { 3732 std::string Targets; 3733 llvm::raw_string_ostream OS(Targets); 3734 llvm::interleave( 3735 Opts.OMPTargetTriples, OS, 3736 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3737 GenerateArg(Consumer, OPT_fopenmp_targets_EQ, OS.str()); 3738 } 3739 3740 if (!Opts.OMPHostIRFile.empty()) 3741 GenerateArg(Consumer, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile); 3742 3743 if (Opts.OpenMPCUDAMode) 3744 GenerateArg(Consumer, OPT_fopenmp_cuda_mode); 3745 3746 if (Opts.OpenACC) { 3747 GenerateArg(Consumer, OPT_fopenacc); 3748 if (!Opts.OpenACCMacroOverride.empty()) 3749 GenerateArg(Consumer, OPT_openacc_macro_override, 3750 Opts.OpenACCMacroOverride); 3751 } 3752 3753 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3754 // generated from CodeGenOptions. 3755 3756 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3757 GenerateArg(Consumer, OPT_ffp_contract, "fast"); 3758 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3759 GenerateArg(Consumer, OPT_ffp_contract, "on"); 3760 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3761 GenerateArg(Consumer, OPT_ffp_contract, "off"); 3762 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3763 GenerateArg(Consumer, OPT_ffp_contract, "fast-honor-pragmas"); 3764 3765 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3766 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3767 3768 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3769 for (const std::string &F : Opts.NoSanitizeFiles) 3770 GenerateArg(Consumer, OPT_fsanitize_ignorelist_EQ, F); 3771 3772 switch (Opts.getClangABICompat()) { 3773 case LangOptions::ClangABI::Ver3_8: 3774 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "3.8"); 3775 break; 3776 case LangOptions::ClangABI::Ver4: 3777 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "4.0"); 3778 break; 3779 case LangOptions::ClangABI::Ver6: 3780 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "6.0"); 3781 break; 3782 case LangOptions::ClangABI::Ver7: 3783 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "7.0"); 3784 break; 3785 case LangOptions::ClangABI::Ver9: 3786 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "9.0"); 3787 break; 3788 case LangOptions::ClangABI::Ver11: 3789 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "11.0"); 3790 break; 3791 case LangOptions::ClangABI::Ver12: 3792 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "12.0"); 3793 break; 3794 case LangOptions::ClangABI::Ver14: 3795 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "14.0"); 3796 break; 3797 case LangOptions::ClangABI::Ver15: 3798 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "15.0"); 3799 break; 3800 case LangOptions::ClangABI::Ver17: 3801 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "17.0"); 3802 break; 3803 case LangOptions::ClangABI::Ver18: 3804 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "18.0"); 3805 break; 3806 case LangOptions::ClangABI::Latest: 3807 break; 3808 } 3809 3810 if (Opts.getSignReturnAddressScope() == 3811 LangOptions::SignReturnAddressScopeKind::All) 3812 GenerateArg(Consumer, OPT_msign_return_address_EQ, "all"); 3813 else if (Opts.getSignReturnAddressScope() == 3814 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3815 GenerateArg(Consumer, OPT_msign_return_address_EQ, "non-leaf"); 3816 3817 if (Opts.getSignReturnAddressKey() == 3818 LangOptions::SignReturnAddressKeyKind::BKey) 3819 GenerateArg(Consumer, OPT_msign_return_address_key_EQ, "b_key"); 3820 3821 if (Opts.CXXABI) 3822 GenerateArg(Consumer, OPT_fcxx_abi_EQ, 3823 TargetCXXABI::getSpelling(*Opts.CXXABI)); 3824 3825 if (Opts.RelativeCXXABIVTables) 3826 GenerateArg(Consumer, OPT_fexperimental_relative_cxx_abi_vtables); 3827 else 3828 GenerateArg(Consumer, OPT_fno_experimental_relative_cxx_abi_vtables); 3829 3830 if (Opts.UseTargetPathSeparator) 3831 GenerateArg(Consumer, OPT_ffile_reproducible); 3832 else 3833 GenerateArg(Consumer, OPT_fno_file_reproducible); 3834 3835 for (const auto &MP : Opts.MacroPrefixMap) 3836 GenerateArg(Consumer, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second); 3837 3838 if (!Opts.RandstructSeed.empty()) 3839 GenerateArg(Consumer, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed); 3840 } 3841 3842 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3843 InputKind IK, const llvm::Triple &T, 3844 std::vector<std::string> &Includes, 3845 DiagnosticsEngine &Diags) { 3846 unsigned NumErrorsBefore = Diags.getNumErrors(); 3847 3848 if (IK.getFormat() == InputKind::Precompiled || 3849 IK.getLanguage() == Language::LLVM_IR || 3850 IK.getLanguage() == Language::CIR) { 3851 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3852 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3853 // what the input type is. 3854 if (Args.hasArg(OPT_fobjc_arc)) 3855 Opts.ObjCAutoRefCount = 1; 3856 // PICLevel and PIELevel are needed during code generation and this should 3857 // be set regardless of the input type. 3858 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3859 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3860 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3861 Diags, Opts.Sanitize); 3862 3863 return Diags.getNumErrors() == NumErrorsBefore; 3864 } 3865 3866 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3867 // FIXME: Should we really be parsing this for an Language::Asm input? 3868 3869 // FIXME: Cleanup per-file based stuff. 3870 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3871 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3872 LangStd = LangStandard::getLangKind(A->getValue()); 3873 if (LangStd == LangStandard::lang_unspecified) { 3874 Diags.Report(diag::err_drv_invalid_value) 3875 << A->getAsString(Args) << A->getValue(); 3876 // Report supported standards with short description. 3877 for (unsigned KindValue = 0; 3878 KindValue != LangStandard::lang_unspecified; 3879 ++KindValue) { 3880 const LangStandard &Std = LangStandard::getLangStandardForKind( 3881 static_cast<LangStandard::Kind>(KindValue)); 3882 if (IsInputCompatibleWithStandard(IK, Std)) { 3883 auto Diag = Diags.Report(diag::note_drv_use_standard); 3884 Diag << Std.getName() << Std.getDescription(); 3885 unsigned NumAliases = 0; 3886 #define LANGSTANDARD(id, name, lang, desc, features) 3887 #define LANGSTANDARD_ALIAS(id, alias) \ 3888 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3889 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3890 #include "clang/Basic/LangStandards.def" 3891 Diag << NumAliases; 3892 #define LANGSTANDARD(id, name, lang, desc, features) 3893 #define LANGSTANDARD_ALIAS(id, alias) \ 3894 if (KindValue == LangStandard::lang_##id) Diag << alias; 3895 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3896 #include "clang/Basic/LangStandards.def" 3897 } 3898 } 3899 } else { 3900 // Valid standard, check to make sure language and standard are 3901 // compatible. 3902 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3903 if (!IsInputCompatibleWithStandard(IK, Std)) { 3904 Diags.Report(diag::err_drv_argument_not_allowed_with) 3905 << A->getAsString(Args) << GetInputKindName(IK); 3906 } 3907 } 3908 } 3909 3910 // -cl-std only applies for OpenCL language standards. 3911 // Override the -std option in this case. 3912 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3913 LangStandard::Kind OpenCLLangStd 3914 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3915 .Cases("cl", "CL", LangStandard::lang_opencl10) 3916 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3917 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3918 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3919 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3920 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3921 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3922 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3923 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3924 .Default(LangStandard::lang_unspecified); 3925 3926 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3927 Diags.Report(diag::err_drv_invalid_value) 3928 << A->getAsString(Args) << A->getValue(); 3929 } 3930 else 3931 LangStd = OpenCLLangStd; 3932 } 3933 3934 // These need to be parsed now. They are used to set OpenCL defaults. 3935 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3936 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3937 3938 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3939 3940 // The key paths of codegen options defined in Options.td start with 3941 // "LangOpts->". Let's provide the expected variable name and type. 3942 LangOptions *LangOpts = &Opts; 3943 3944 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3945 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3946 #include "clang/Driver/Options.inc" 3947 #undef LANG_OPTION_WITH_MARSHALLING 3948 3949 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3950 StringRef Name = A->getValue(); 3951 if (Name == "full" || Name == "branch") { 3952 Opts.CFProtectionBranch = 1; 3953 } 3954 } 3955 3956 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3957 !Args.hasArg(OPT_sycl_std_EQ)) { 3958 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3959 // provide -sycl-std=, we want to default it to whatever the default SYCL 3960 // version is. I could not find a way to express this with the options 3961 // tablegen because we still want this value to be SYCL_None when the user 3962 // is not in device or host mode. 3963 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3964 } 3965 3966 if (Opts.ObjC) { 3967 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3968 StringRef value = arg->getValue(); 3969 if (Opts.ObjCRuntime.tryParse(value)) 3970 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3971 } 3972 3973 if (Args.hasArg(OPT_fobjc_gc_only)) 3974 Opts.setGC(LangOptions::GCOnly); 3975 else if (Args.hasArg(OPT_fobjc_gc)) 3976 Opts.setGC(LangOptions::HybridGC); 3977 else if (Args.hasArg(OPT_fobjc_arc)) { 3978 Opts.ObjCAutoRefCount = 1; 3979 if (!Opts.ObjCRuntime.allowsARC()) 3980 Diags.Report(diag::err_arc_unsupported_on_runtime); 3981 } 3982 3983 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3984 // whether the feature is actually enabled. This is predominantly 3985 // determined by -fobjc-runtime, but we allow it to be overridden 3986 // from the command line for testing purposes. 3987 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3988 Opts.ObjCWeakRuntime = 1; 3989 else 3990 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3991 3992 // ObjCWeak determines whether __weak is actually enabled. 3993 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3994 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3995 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3996 assert(!Opts.ObjCWeak); 3997 } else if (Opts.getGC() != LangOptions::NonGC) { 3998 Diags.Report(diag::err_objc_weak_with_gc); 3999 } else if (!Opts.ObjCWeakRuntime) { 4000 Diags.Report(diag::err_objc_weak_unsupported); 4001 } else { 4002 Opts.ObjCWeak = 1; 4003 } 4004 } else if (Opts.ObjCAutoRefCount) { 4005 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 4006 } 4007 4008 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 4009 Opts.ObjCSubscriptingLegacyRuntime = 4010 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 4011 } 4012 4013 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 4014 // Check that the version has 1 to 3 components and the minor and patch 4015 // versions fit in two decimal digits. 4016 VersionTuple GNUCVer; 4017 bool Invalid = GNUCVer.tryParse(A->getValue()); 4018 unsigned Major = GNUCVer.getMajor(); 4019 unsigned Minor = GNUCVer.getMinor().value_or(0); 4020 unsigned Patch = GNUCVer.getSubminor().value_or(0); 4021 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 4022 Diags.Report(diag::err_drv_invalid_value) 4023 << A->getAsString(Args) << A->getValue(); 4024 } 4025 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 4026 } 4027 4028 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 4029 Opts.IgnoreXCOFFVisibility = 1; 4030 4031 if (Args.hasArg(OPT_ftrapv)) { 4032 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 4033 // Set the handler, if one is specified. 4034 Opts.OverflowHandler = 4035 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 4036 } 4037 else if (Args.hasArg(OPT_fwrapv)) 4038 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 4039 4040 Opts.MSCompatibilityVersion = 0; 4041 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 4042 VersionTuple VT; 4043 if (VT.tryParse(A->getValue())) 4044 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 4045 << A->getValue(); 4046 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 4047 VT.getMinor().value_or(0) * 100000 + 4048 VT.getSubminor().value_or(0); 4049 } 4050 4051 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 4052 // is specified, or -std is set to a conforming mode. 4053 // Trigraphs are disabled by default in C++17 and C23 onwards. 4054 // For z/OS, trigraphs are enabled by default (without regard to the above). 4055 Opts.Trigraphs = 4056 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 4057 T.isOSzOS(); 4058 Opts.Trigraphs = 4059 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 4060 4061 Opts.ZOSExt = 4062 Args.hasFlag(OPT_fzos_extensions, OPT_fno_zos_extensions, T.isOSzOS()); 4063 4064 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 4065 && Opts.OpenCLVersion == 200); 4066 4067 Opts.ConvergentFunctions = Args.hasArg(OPT_fconvergent_functions) || 4068 Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 4069 Opts.SYCLIsDevice || Opts.HLSL; 4070 4071 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 4072 if (!Opts.NoBuiltin) 4073 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 4074 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 4075 if (A->getOption().matches(options::OPT_mlong_double_64)) 4076 Opts.LongDoubleSize = 64; 4077 else if (A->getOption().matches(options::OPT_mlong_double_80)) 4078 Opts.LongDoubleSize = 80; 4079 else if (A->getOption().matches(options::OPT_mlong_double_128)) 4080 Opts.LongDoubleSize = 128; 4081 else 4082 Opts.LongDoubleSize = 0; 4083 } 4084 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 4085 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4086 4087 llvm::sort(Opts.ModuleFeatures); 4088 4089 // -mrtd option 4090 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 4091 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 4092 Diags.Report(diag::err_drv_argument_not_allowed_with) 4093 << A->getSpelling() << "-fdefault-calling-conv"; 4094 else { 4095 switch (T.getArch()) { 4096 case llvm::Triple::x86: 4097 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 4098 break; 4099 case llvm::Triple::m68k: 4100 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall); 4101 break; 4102 default: 4103 Diags.Report(diag::err_drv_argument_not_allowed_with) 4104 << A->getSpelling() << T.getTriple(); 4105 } 4106 } 4107 } 4108 4109 // Check if -fopenmp is specified and set default version to 5.0. 4110 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 51 : 0; 4111 // Check if -fopenmp-simd is specified. 4112 bool IsSimdSpecified = 4113 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 4114 /*Default=*/false); 4115 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 4116 Opts.OpenMPUseTLS = 4117 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 4118 Opts.OpenMPIsTargetDevice = 4119 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_target_device); 4120 Opts.OpenMPIRBuilder = 4121 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 4122 bool IsTargetSpecified = 4123 Opts.OpenMPIsTargetDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 4124 4125 Opts.ConvergentFunctions = 4126 Opts.ConvergentFunctions || Opts.OpenMPIsTargetDevice; 4127 4128 if (Opts.OpenMP || Opts.OpenMPSimd) { 4129 if (int Version = getLastArgIntValue( 4130 Args, OPT_fopenmp_version_EQ, 4131 (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags)) 4132 Opts.OpenMP = Version; 4133 // Provide diagnostic when a given target is not expected to be an OpenMP 4134 // device or host. 4135 if (!Opts.OpenMPIsTargetDevice) { 4136 switch (T.getArch()) { 4137 default: 4138 break; 4139 // Add unsupported host targets here: 4140 case llvm::Triple::nvptx: 4141 case llvm::Triple::nvptx64: 4142 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 4143 break; 4144 } 4145 } 4146 } 4147 4148 // Set the flag to prevent the implementation from emitting device exception 4149 // handling code for those requiring so. 4150 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) || 4151 Opts.OpenCLCPlusPlus) { 4152 4153 Opts.Exceptions = 0; 4154 Opts.CXXExceptions = 0; 4155 } 4156 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) { 4157 Opts.OpenMPCUDANumSMs = 4158 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 4159 Opts.OpenMPCUDANumSMs, Diags); 4160 Opts.OpenMPCUDABlocksPerSM = 4161 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 4162 Opts.OpenMPCUDABlocksPerSM, Diags); 4163 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 4164 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 4165 Opts.OpenMPCUDAReductionBufNum, Diags); 4166 } 4167 4168 // Set the value of the debugging flag used in the new offloading device RTL. 4169 // Set either by a specific value or to a default if not specified. 4170 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 4171 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 4172 Opts.OpenMPTargetDebug = getLastArgIntValue( 4173 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 4174 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 4175 Opts.OpenMPTargetDebug = 1; 4176 } 4177 4178 if (Opts.OpenMPIsTargetDevice) { 4179 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 4180 Opts.OpenMPTeamSubscription = true; 4181 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 4182 Opts.OpenMPThreadSubscription = true; 4183 } 4184 4185 // Get the OpenMP target triples if any. 4186 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 4187 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 4188 auto getArchPtrSize = [](const llvm::Triple &T) { 4189 if (T.isArch16Bit()) 4190 return Arch16Bit; 4191 if (T.isArch32Bit()) 4192 return Arch32Bit; 4193 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 4194 return Arch64Bit; 4195 }; 4196 4197 for (unsigned i = 0; i < A->getNumValues(); ++i) { 4198 llvm::Triple TT(A->getValue(i)); 4199 4200 if (TT.getArch() == llvm::Triple::UnknownArch || 4201 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4202 TT.getArch() == llvm::Triple::systemz || 4203 TT.getArch() == llvm::Triple::nvptx || 4204 TT.getArch() == llvm::Triple::nvptx64 || 4205 TT.getArch() == llvm::Triple::amdgcn || 4206 TT.getArch() == llvm::Triple::x86 || 4207 TT.getArch() == llvm::Triple::x86_64)) 4208 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4209 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4210 Diags.Report(diag::err_drv_incompatible_omp_arch) 4211 << A->getValue(i) << T.str(); 4212 else 4213 Opts.OMPTargetTriples.push_back(TT); 4214 } 4215 } 4216 4217 // Get OpenMP host file path if any and report if a non existent file is 4218 // found 4219 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4220 Opts.OMPHostIRFile = A->getValue(); 4221 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4222 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4223 << Opts.OMPHostIRFile; 4224 } 4225 4226 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4227 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice && 4228 (T.isNVPTX() || T.isAMDGCN()) && 4229 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4230 4231 // OpenACC Configuration. 4232 if (Args.hasArg(options::OPT_fopenacc)) { 4233 Opts.OpenACC = true; 4234 4235 if (Arg *A = Args.getLastArg(options::OPT_openacc_macro_override)) 4236 Opts.OpenACCMacroOverride = A->getValue(); 4237 } 4238 4239 // FIXME: Eliminate this dependency. 4240 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4241 OptSize = getOptimizationLevelSize(Args); 4242 Opts.Optimize = Opt != 0; 4243 Opts.OptimizeSize = OptSize != 0; 4244 4245 // This is the __NO_INLINE__ define, which just depends on things like the 4246 // optimization level and -fno-inline, not actually whether the backend has 4247 // inlining enabled. 4248 Opts.NoInlineDefine = !Opts.Optimize; 4249 if (Arg *InlineArg = Args.getLastArg( 4250 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4251 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4252 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4253 Opts.NoInlineDefine = true; 4254 4255 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4256 StringRef Val = A->getValue(); 4257 if (Val == "fast") 4258 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4259 else if (Val == "on") 4260 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4261 else if (Val == "off") 4262 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4263 else if (Val == "fast-honor-pragmas") 4264 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4265 else 4266 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4267 } 4268 4269 // Parse -fsanitize= arguments. 4270 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4271 Diags, Opts.Sanitize); 4272 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4273 std::vector<std::string> systemIgnorelists = 4274 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4275 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4276 systemIgnorelists.begin(), 4277 systemIgnorelists.end()); 4278 4279 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4280 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4281 4282 StringRef Ver = A->getValue(); 4283 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4284 unsigned Major, Minor = 0; 4285 4286 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4287 // y or y.0 (4 <= y <= current version). 4288 if (!VerParts.first.starts_with("0") && 4289 !VerParts.first.getAsInteger(10, Major) && 3 <= Major && 4290 Major <= CLANG_VERSION_MAJOR && 4291 (Major == 3 4292 ? VerParts.second.size() == 1 && 4293 !VerParts.second.getAsInteger(10, Minor) 4294 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) { 4295 // Got a valid version number. 4296 if (Major == 3 && Minor <= 8) 4297 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4298 else if (Major <= 4) 4299 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4300 else if (Major <= 6) 4301 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4302 else if (Major <= 7) 4303 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4304 else if (Major <= 9) 4305 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4306 else if (Major <= 11) 4307 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4308 else if (Major <= 12) 4309 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4310 else if (Major <= 14) 4311 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4312 else if (Major <= 15) 4313 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4314 else if (Major <= 17) 4315 Opts.setClangABICompat(LangOptions::ClangABI::Ver17); 4316 else if (Major <= 18) 4317 Opts.setClangABICompat(LangOptions::ClangABI::Ver18); 4318 } else if (Ver != "latest") { 4319 Diags.Report(diag::err_drv_invalid_value) 4320 << A->getAsString(Args) << A->getValue(); 4321 } 4322 } 4323 4324 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4325 StringRef SignScope = A->getValue(); 4326 4327 if (SignScope.equals_insensitive("none")) 4328 Opts.setSignReturnAddressScope( 4329 LangOptions::SignReturnAddressScopeKind::None); 4330 else if (SignScope.equals_insensitive("all")) 4331 Opts.setSignReturnAddressScope( 4332 LangOptions::SignReturnAddressScopeKind::All); 4333 else if (SignScope.equals_insensitive("non-leaf")) 4334 Opts.setSignReturnAddressScope( 4335 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4336 else 4337 Diags.Report(diag::err_drv_invalid_value) 4338 << A->getAsString(Args) << SignScope; 4339 4340 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4341 StringRef SignKey = A->getValue(); 4342 if (!SignScope.empty() && !SignKey.empty()) { 4343 if (SignKey == "a_key") 4344 Opts.setSignReturnAddressKey( 4345 LangOptions::SignReturnAddressKeyKind::AKey); 4346 else if (SignKey == "b_key") 4347 Opts.setSignReturnAddressKey( 4348 LangOptions::SignReturnAddressKeyKind::BKey); 4349 else 4350 Diags.Report(diag::err_drv_invalid_value) 4351 << A->getAsString(Args) << SignKey; 4352 } 4353 } 4354 } 4355 4356 // The value can be empty, which indicates the system default should be used. 4357 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4358 if (!CXXABI.empty()) { 4359 if (!TargetCXXABI::isABI(CXXABI)) { 4360 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4361 } else { 4362 auto Kind = TargetCXXABI::getKind(CXXABI); 4363 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4364 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4365 else 4366 Opts.CXXABI = Kind; 4367 } 4368 } 4369 4370 Opts.RelativeCXXABIVTables = 4371 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4372 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4373 TargetCXXABI::usesRelativeVTables(T)); 4374 4375 // RTTI is on by default. 4376 bool HasRTTI = !Args.hasArg(options::OPT_fno_rtti); 4377 Opts.OmitVTableRTTI = 4378 Args.hasFlag(options::OPT_fexperimental_omit_vtable_rtti, 4379 options::OPT_fno_experimental_omit_vtable_rtti, false); 4380 if (Opts.OmitVTableRTTI && HasRTTI) 4381 Diags.Report(diag::err_drv_using_omit_rtti_component_without_no_rtti); 4382 4383 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4384 auto Split = StringRef(A).split('='); 4385 Opts.MacroPrefixMap.insert( 4386 {std::string(Split.first), std::string(Split.second)}); 4387 } 4388 4389 Opts.UseTargetPathSeparator = 4390 !Args.getLastArg(OPT_fno_file_reproducible) && 4391 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4392 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4393 Args.getLastArg(OPT_ffile_reproducible)); 4394 4395 // Error if -mvscale-min is unbounded. 4396 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4397 unsigned VScaleMin; 4398 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4399 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4400 } 4401 4402 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4403 std::ifstream SeedFile(A->getValue(0)); 4404 4405 if (!SeedFile.is_open()) 4406 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4407 << A->getValue(0); 4408 4409 std::getline(SeedFile, Opts.RandstructSeed); 4410 } 4411 4412 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4413 Opts.RandstructSeed = A->getValue(0); 4414 4415 // Validate options for HLSL 4416 if (Opts.HLSL) { 4417 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to 4418 // handle PhysicalStorageBuffer64 memory model 4419 if (T.isDXIL() || T.isSPIRVLogical()) { 4420 enum { ShaderModel, VulkanEnv, ShaderStage }; 4421 enum { OS, Environment }; 4422 4423 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel; 4424 4425 if (T.getOSName().empty()) { 4426 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4427 << ExpectedOS << OS << T.str(); 4428 } else if (T.getEnvironmentName().empty()) { 4429 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4430 << ShaderStage << Environment << T.str(); 4431 } else if (!T.isShaderStageEnvironment()) { 4432 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4433 << ShaderStage << T.getEnvironmentName() << T.str(); 4434 } 4435 4436 if (T.isDXIL()) { 4437 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) { 4438 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4439 << ShaderModel << T.getOSName() << T.str(); 4440 } 4441 // Validate that if fnative-half-type is given, that 4442 // the language standard is at least hlsl2018, and that 4443 // the target shader model is at least 6.2. 4444 if (Args.getLastArg(OPT_fnative_half_type)) { 4445 const LangStandard &Std = 4446 LangStandard::getLangStandardForKind(Opts.LangStd); 4447 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018 && 4448 T.getOSVersion() >= VersionTuple(6, 2))) 4449 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4450 << "-enable-16bit-types" << true << Std.getName() 4451 << T.getOSVersion().getAsString(); 4452 } 4453 } else if (T.isSPIRVLogical()) { 4454 if (!T.isVulkanOS() || T.getVulkanVersion() == VersionTuple(0)) { 4455 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4456 << VulkanEnv << T.getOSName() << T.str(); 4457 } 4458 if (Args.getLastArg(OPT_fnative_half_type)) { 4459 const LangStandard &Std = 4460 LangStandard::getLangStandardForKind(Opts.LangStd); 4461 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018)) 4462 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4463 << "-fnative-half-type" << false << Std.getName(); 4464 } 4465 } else { 4466 llvm_unreachable("expected DXIL or SPIR-V target"); 4467 } 4468 } else 4469 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4470 } 4471 4472 return Diags.getNumErrors() == NumErrorsBefore; 4473 } 4474 4475 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4476 switch (Action) { 4477 case frontend::ASTDeclList: 4478 case frontend::ASTDump: 4479 case frontend::ASTPrint: 4480 case frontend::ASTView: 4481 case frontend::EmitAssembly: 4482 case frontend::EmitBC: 4483 case frontend::EmitCIR: 4484 case frontend::EmitHTML: 4485 case frontend::EmitLLVM: 4486 case frontend::EmitLLVMOnly: 4487 case frontend::EmitCodeGenOnly: 4488 case frontend::EmitObj: 4489 case frontend::ExtractAPI: 4490 case frontend::FixIt: 4491 case frontend::GenerateModule: 4492 case frontend::GenerateModuleInterface: 4493 case frontend::GenerateReducedModuleInterface: 4494 case frontend::GenerateHeaderUnit: 4495 case frontend::GeneratePCH: 4496 case frontend::GenerateInterfaceStubs: 4497 case frontend::ParseSyntaxOnly: 4498 case frontend::ModuleFileInfo: 4499 case frontend::VerifyPCH: 4500 case frontend::PluginAction: 4501 case frontend::RewriteObjC: 4502 case frontend::RewriteTest: 4503 case frontend::RunAnalysis: 4504 case frontend::TemplightDump: 4505 case frontend::MigrateSource: 4506 return false; 4507 4508 case frontend::DumpCompilerOptions: 4509 case frontend::DumpRawTokens: 4510 case frontend::DumpTokens: 4511 case frontend::InitOnly: 4512 case frontend::PrintPreamble: 4513 case frontend::PrintPreprocessedInput: 4514 case frontend::RewriteMacros: 4515 case frontend::RunPreprocessorOnly: 4516 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4517 return true; 4518 } 4519 llvm_unreachable("invalid frontend action"); 4520 } 4521 4522 static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts, 4523 ArgumentConsumer Consumer, 4524 const LangOptions &LangOpts, 4525 const FrontendOptions &FrontendOpts, 4526 const CodeGenOptions &CodeGenOpts) { 4527 const PreprocessorOptions *PreprocessorOpts = &Opts; 4528 4529 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4530 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4531 #include "clang/Driver/Options.inc" 4532 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4533 4534 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4535 GenerateArg(Consumer, OPT_pch_through_hdrstop_use); 4536 4537 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4538 GenerateArg(Consumer, OPT_error_on_deserialized_pch_decl, D); 4539 4540 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4541 GenerateArg(Consumer, OPT_preamble_bytes_EQ, 4542 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4543 (Opts.PrecompiledPreambleBytes.second ? "1" : "0")); 4544 4545 for (const auto &M : Opts.Macros) { 4546 // Don't generate __CET__ macro definitions. They are implied by the 4547 // -fcf-protection option that is generated elsewhere. 4548 if (M.first == "__CET__=1" && !M.second && 4549 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4550 continue; 4551 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4552 !CodeGenOpts.CFProtectionBranch) 4553 continue; 4554 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4555 CodeGenOpts.CFProtectionBranch) 4556 continue; 4557 4558 GenerateArg(Consumer, M.second ? OPT_U : OPT_D, M.first); 4559 } 4560 4561 for (const auto &I : Opts.Includes) { 4562 // Don't generate OpenCL includes. They are implied by other flags that are 4563 // generated elsewhere. 4564 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4565 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4566 I == "opencl-c.h")) 4567 continue; 4568 // Don't generate HLSL includes. They are implied by other flags that are 4569 // generated elsewhere. 4570 if (LangOpts.HLSL && I == "hlsl.h") 4571 continue; 4572 4573 GenerateArg(Consumer, OPT_include, I); 4574 } 4575 4576 for (const auto &CI : Opts.ChainedIncludes) 4577 GenerateArg(Consumer, OPT_chain_include, CI); 4578 4579 for (const auto &RF : Opts.RemappedFiles) 4580 GenerateArg(Consumer, OPT_remap_file, RF.first + ";" + RF.second); 4581 4582 if (Opts.SourceDateEpoch) 4583 GenerateArg(Consumer, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch)); 4584 4585 if (Opts.DefineTargetOSMacros) 4586 GenerateArg(Consumer, OPT_fdefine_target_os_macros); 4587 4588 for (const auto &EmbedEntry : Opts.EmbedEntries) 4589 GenerateArg(Consumer, OPT_embed_dir_EQ, EmbedEntry); 4590 4591 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4592 // generated elsewhere. 4593 } 4594 4595 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4596 DiagnosticsEngine &Diags, 4597 frontend::ActionKind Action, 4598 const FrontendOptions &FrontendOpts) { 4599 unsigned NumErrorsBefore = Diags.getNumErrors(); 4600 4601 PreprocessorOptions *PreprocessorOpts = &Opts; 4602 4603 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4604 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4605 #include "clang/Driver/Options.inc" 4606 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4607 4608 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4609 Args.hasArg(OPT_pch_through_hdrstop_use); 4610 4611 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4612 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4613 4614 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4615 StringRef Value(A->getValue()); 4616 size_t Comma = Value.find(','); 4617 unsigned Bytes = 0; 4618 unsigned EndOfLine = 0; 4619 4620 if (Comma == StringRef::npos || 4621 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4622 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4623 Diags.Report(diag::err_drv_preamble_format); 4624 else { 4625 Opts.PrecompiledPreambleBytes.first = Bytes; 4626 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4627 } 4628 } 4629 4630 // Add the __CET__ macro if a CFProtection option is set. 4631 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4632 StringRef Name = A->getValue(); 4633 if (Name == "branch") 4634 Opts.addMacroDef("__CET__=1"); 4635 else if (Name == "return") 4636 Opts.addMacroDef("__CET__=2"); 4637 else if (Name == "full") 4638 Opts.addMacroDef("__CET__=3"); 4639 } 4640 4641 // Add macros from the command line. 4642 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4643 if (A->getOption().matches(OPT_D)) 4644 Opts.addMacroDef(A->getValue()); 4645 else 4646 Opts.addMacroUndef(A->getValue()); 4647 } 4648 4649 // Add the ordered list of -includes. 4650 for (const auto *A : Args.filtered(OPT_include)) 4651 Opts.Includes.emplace_back(A->getValue()); 4652 4653 for (const auto *A : Args.filtered(OPT_chain_include)) 4654 Opts.ChainedIncludes.emplace_back(A->getValue()); 4655 4656 for (const auto *A : Args.filtered(OPT_remap_file)) { 4657 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4658 4659 if (Split.second.empty()) { 4660 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4661 continue; 4662 } 4663 4664 Opts.addRemappedFile(Split.first, Split.second); 4665 } 4666 4667 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4668 StringRef Epoch = A->getValue(); 4669 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4670 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4671 // 9999-12-31T23:59:59Z) as the upper bound. 4672 const uint64_t MaxTimestamp = 4673 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4674 uint64_t V; 4675 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4676 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4677 << Epoch << MaxTimestamp; 4678 } else { 4679 Opts.SourceDateEpoch = V; 4680 } 4681 } 4682 4683 for (const auto *A : Args.filtered(OPT_embed_dir_EQ)) { 4684 StringRef Val = A->getValue(); 4685 Opts.EmbedEntries.push_back(std::string(Val)); 4686 } 4687 4688 // Always avoid lexing editor placeholders when we're just running the 4689 // preprocessor as we never want to emit the 4690 // "editor placeholder in source file" error in PP only mode. 4691 if (isStrictlyPreprocessorAction(Action)) 4692 Opts.LexEditorPlaceholders = false; 4693 4694 Opts.DefineTargetOSMacros = 4695 Args.hasFlag(OPT_fdefine_target_os_macros, 4696 OPT_fno_define_target_os_macros, Opts.DefineTargetOSMacros); 4697 4698 return Diags.getNumErrors() == NumErrorsBefore; 4699 } 4700 4701 static void 4702 GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts, 4703 ArgumentConsumer Consumer, 4704 frontend::ActionKind Action) { 4705 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4706 4707 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4708 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4709 #include "clang/Driver/Options.inc" 4710 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4711 4712 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4713 if (Generate_dM) 4714 GenerateArg(Consumer, OPT_dM); 4715 if (!Generate_dM && Opts.ShowMacros) 4716 GenerateArg(Consumer, OPT_dD); 4717 if (Opts.DirectivesOnly) 4718 GenerateArg(Consumer, OPT_fdirectives_only); 4719 } 4720 4721 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4722 ArgList &Args, DiagnosticsEngine &Diags, 4723 frontend::ActionKind Action) { 4724 unsigned NumErrorsBefore = Diags.getNumErrors(); 4725 4726 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4727 4728 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4729 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4730 #include "clang/Driver/Options.inc" 4731 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4732 4733 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4734 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4735 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4736 4737 return Diags.getNumErrors() == NumErrorsBefore; 4738 } 4739 4740 static void GenerateTargetArgs(const TargetOptions &Opts, 4741 ArgumentConsumer Consumer) { 4742 const TargetOptions *TargetOpts = &Opts; 4743 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4744 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4745 #include "clang/Driver/Options.inc" 4746 #undef TARGET_OPTION_WITH_MARSHALLING 4747 4748 if (!Opts.SDKVersion.empty()) 4749 GenerateArg(Consumer, OPT_target_sdk_version_EQ, 4750 Opts.SDKVersion.getAsString()); 4751 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4752 GenerateArg(Consumer, OPT_darwin_target_variant_sdk_version_EQ, 4753 Opts.DarwinTargetVariantSDKVersion.getAsString()); 4754 } 4755 4756 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4757 DiagnosticsEngine &Diags) { 4758 unsigned NumErrorsBefore = Diags.getNumErrors(); 4759 4760 TargetOptions *TargetOpts = &Opts; 4761 4762 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4763 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4764 #include "clang/Driver/Options.inc" 4765 #undef TARGET_OPTION_WITH_MARSHALLING 4766 4767 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4768 llvm::VersionTuple Version; 4769 if (Version.tryParse(A->getValue())) 4770 Diags.Report(diag::err_drv_invalid_value) 4771 << A->getAsString(Args) << A->getValue(); 4772 else 4773 Opts.SDKVersion = Version; 4774 } 4775 if (Arg *A = 4776 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4777 llvm::VersionTuple Version; 4778 if (Version.tryParse(A->getValue())) 4779 Diags.Report(diag::err_drv_invalid_value) 4780 << A->getAsString(Args) << A->getValue(); 4781 else 4782 Opts.DarwinTargetVariantSDKVersion = Version; 4783 } 4784 4785 return Diags.getNumErrors() == NumErrorsBefore; 4786 } 4787 4788 bool CompilerInvocation::CreateFromArgsImpl( 4789 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4790 DiagnosticsEngine &Diags, const char *Argv0) { 4791 unsigned NumErrorsBefore = Diags.getNumErrors(); 4792 4793 // Parse the arguments. 4794 const OptTable &Opts = getDriverOptTable(); 4795 llvm::opt::Visibility VisibilityMask(options::CC1Option); 4796 unsigned MissingArgIndex, MissingArgCount; 4797 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4798 MissingArgCount, VisibilityMask); 4799 LangOptions &LangOpts = Res.getLangOpts(); 4800 4801 // Check for missing argument error. 4802 if (MissingArgCount) 4803 Diags.Report(diag::err_drv_missing_argument) 4804 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4805 4806 // Issue errors on unknown arguments. 4807 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4808 auto ArgString = A->getAsString(Args); 4809 std::string Nearest; 4810 if (Opts.findNearest(ArgString, Nearest, VisibilityMask) > 1) 4811 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4812 else 4813 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4814 << ArgString << Nearest; 4815 } 4816 4817 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4818 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4819 ParseAnalyzerArgs(Res.getAnalyzerOpts(), Args, Diags); 4820 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4821 /*DefaultDiagColor=*/false); 4822 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4823 // FIXME: We shouldn't have to pass the DashX option around here 4824 InputKind DashX = Res.getFrontendOpts().DashX; 4825 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4826 llvm::Triple T(Res.getTargetOpts().Triple); 4827 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4828 Res.getFileSystemOpts().WorkingDir); 4829 ParseAPINotesArgs(Res.getAPINotesOpts(), Args, Diags); 4830 4831 ParsePointerAuthArgs(LangOpts, Args, Diags); 4832 4833 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4834 Diags); 4835 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4836 LangOpts.ObjCExceptions = 1; 4837 4838 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4839 if (Warning == "misexpect" && 4840 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4841 Res.getCodeGenOpts().MisExpect = true; 4842 } 4843 } 4844 4845 if (LangOpts.CUDA) { 4846 // During CUDA device-side compilation, the aux triple is the 4847 // triple used for host compilation. 4848 if (LangOpts.CUDAIsDevice) 4849 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4850 } 4851 4852 // Set the triple of the host for OpenMP device compile. 4853 if (LangOpts.OpenMPIsTargetDevice) 4854 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4855 4856 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4857 Res.getFrontendOpts().OutputFile, LangOpts); 4858 4859 // FIXME: Override value name discarding when asan or msan is used because the 4860 // backend passes depend on the name of the alloca in order to print out 4861 // names. 4862 Res.getCodeGenOpts().DiscardValueNames &= 4863 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4864 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4865 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4866 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4867 4868 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4869 Res.getFrontendOpts().ProgramAction, 4870 Res.getFrontendOpts()); 4871 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4872 Res.getFrontendOpts().ProgramAction); 4873 4874 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4875 Res.getFrontendOpts().ProgramAction, 4876 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4877 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4878 Res.getDependencyOutputOpts().Targets.empty()) 4879 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4880 4881 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4882 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4883 !Res.getLangOpts().Sanitize.empty()) { 4884 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4885 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4886 } 4887 4888 // Store the command-line for using in the CodeView backend. 4889 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4890 Res.getCodeGenOpts().Argv0 = Argv0; 4891 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4892 } 4893 4894 // Set PGOOptions. Need to create a temporary VFS to read the profile 4895 // to determine the PGO type. 4896 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 4897 auto FS = 4898 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 4899 Diags, llvm::vfs::getRealFileSystem()); 4900 setPGOUseInstrumentor(Res.getCodeGenOpts(), 4901 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 4902 Diags); 4903 } 4904 4905 FixupInvocation(Res, Diags, Args, DashX); 4906 4907 return Diags.getNumErrors() == NumErrorsBefore; 4908 } 4909 4910 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4911 ArrayRef<const char *> CommandLineArgs, 4912 DiagnosticsEngine &Diags, 4913 const char *Argv0) { 4914 CompilerInvocation DummyInvocation; 4915 4916 return RoundTrip( 4917 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4918 DiagnosticsEngine &Diags, const char *Argv0) { 4919 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4920 }, 4921 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4922 StringAllocator SA) { 4923 Args.push_back("-cc1"); 4924 Invocation.generateCC1CommandLine(Args, SA); 4925 }, 4926 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4927 } 4928 4929 std::string CompilerInvocation::getModuleHash() const { 4930 // FIXME: Consider using SHA1 instead of MD5. 4931 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder; 4932 4933 // Note: For QoI reasons, the things we use as a hash here should all be 4934 // dumped via the -module-info flag. 4935 4936 // Start the signature with the compiler version. 4937 HBuilder.add(getClangFullRepositoryVersion()); 4938 4939 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4940 // and getClangFullRepositoryVersion() doesn't include git revision. 4941 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4942 4943 // Extend the signature with the language options 4944 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4945 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4946 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4947 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4948 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4949 #include "clang/Basic/LangOptions.def" 4950 4951 HBuilder.addRange(getLangOpts().ModuleFeatures); 4952 4953 HBuilder.add(getLangOpts().ObjCRuntime); 4954 HBuilder.addRange(getLangOpts().CommentOpts.BlockCommandNames); 4955 4956 // Extend the signature with the target options. 4957 HBuilder.add(getTargetOpts().Triple, getTargetOpts().CPU, 4958 getTargetOpts().TuneCPU, getTargetOpts().ABI); 4959 HBuilder.addRange(getTargetOpts().FeaturesAsWritten); 4960 4961 // Extend the signature with preprocessor options. 4962 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4963 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4964 4965 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4966 for (const auto &Macro : getPreprocessorOpts().Macros) { 4967 // If we're supposed to ignore this macro for the purposes of modules, 4968 // don't put it into the hash. 4969 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4970 // Check whether we're ignoring this macro. 4971 StringRef MacroDef = Macro.first; 4972 if (hsOpts.ModulesIgnoreMacros.count( 4973 llvm::CachedHashString(MacroDef.split('=').first))) 4974 continue; 4975 } 4976 4977 HBuilder.add(Macro); 4978 } 4979 4980 // Extend the signature with the sysroot and other header search options. 4981 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4982 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4983 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4984 hsOpts.ModulesValidateDiagnosticOptions); 4985 HBuilder.add(hsOpts.ResourceDir); 4986 4987 if (hsOpts.ModulesStrictContextHash) { 4988 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4989 HBuilder.addRange(hsOpts.UserEntries); 4990 HBuilder.addRange(hsOpts.VFSOverlayFiles); 4991 4992 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4993 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4994 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4995 HBuilder.add(diagOpts.get##Name()); 4996 #include "clang/Basic/DiagnosticOptions.def" 4997 #undef DIAGOPT 4998 #undef ENUM_DIAGOPT 4999 } 5000 5001 // Extend the signature with the user build path. 5002 HBuilder.add(hsOpts.ModuleUserBuildPath); 5003 5004 // Extend the signature with the module file extensions. 5005 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 5006 ext->hashExtension(HBuilder); 5007 5008 // Extend the signature with the Swift version for API notes. 5009 const APINotesOptions &APINotesOpts = getAPINotesOpts(); 5010 if (!APINotesOpts.SwiftVersion.empty()) { 5011 HBuilder.add(APINotesOpts.SwiftVersion.getMajor()); 5012 if (auto Minor = APINotesOpts.SwiftVersion.getMinor()) 5013 HBuilder.add(*Minor); 5014 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor()) 5015 HBuilder.add(*Subminor); 5016 if (auto Build = APINotesOpts.SwiftVersion.getBuild()) 5017 HBuilder.add(*Build); 5018 } 5019 5020 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 5021 // affects the debug info in the PCM. 5022 if (getCodeGenOpts().DebugTypeExtRefs) 5023 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 5024 5025 // Extend the signature with the affecting debug options. 5026 if (getHeaderSearchOpts().ModuleFormat == "obj") { 5027 #define DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 5028 #define VALUE_DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 5029 #define ENUM_DEBUGOPT(Name, Type, Bits, Default) \ 5030 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name())); 5031 #define BENIGN_DEBUGOPT(Name, Bits, Default) 5032 #define BENIGN_VALUE_DEBUGOPT(Name, Bits, Default) 5033 #define BENIGN_ENUM_DEBUGOPT(Name, Type, Bits, Default) 5034 #include "clang/Basic/DebugOptions.def" 5035 } 5036 5037 // Extend the signature with the enabled sanitizers, if at least one is 5038 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 5039 SanitizerSet SanHash = getLangOpts().Sanitize; 5040 SanHash.clear(getPPTransparentSanitizers()); 5041 if (!SanHash.empty()) 5042 HBuilder.add(SanHash.Mask); 5043 5044 llvm::MD5::MD5Result Result; 5045 HBuilder.getHasher().final(Result); 5046 uint64_t Hash = Result.high() ^ Result.low(); 5047 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 5048 } 5049 5050 void CompilerInvocationBase::generateCC1CommandLine( 5051 ArgumentConsumer Consumer) const { 5052 llvm::Triple T(getTargetOpts().Triple); 5053 5054 GenerateFileSystemArgs(getFileSystemOpts(), Consumer); 5055 GenerateMigratorArgs(getMigratorOpts(), Consumer); 5056 GenerateAnalyzerArgs(getAnalyzerOpts(), Consumer); 5057 GenerateDiagnosticArgs(getDiagnosticOpts(), Consumer, 5058 /*DefaultDiagColor=*/false); 5059 GenerateFrontendArgs(getFrontendOpts(), Consumer, getLangOpts().IsHeaderFile); 5060 GenerateTargetArgs(getTargetOpts(), Consumer); 5061 GenerateHeaderSearchArgs(getHeaderSearchOpts(), Consumer); 5062 GenerateAPINotesArgs(getAPINotesOpts(), Consumer); 5063 GeneratePointerAuthArgs(getLangOpts(), Consumer); 5064 GenerateLangArgs(getLangOpts(), Consumer, T, getFrontendOpts().DashX); 5065 GenerateCodeGenArgs(getCodeGenOpts(), Consumer, T, 5066 getFrontendOpts().OutputFile, &getLangOpts()); 5067 GeneratePreprocessorArgs(getPreprocessorOpts(), Consumer, getLangOpts(), 5068 getFrontendOpts(), getCodeGenOpts()); 5069 GeneratePreprocessorOutputArgs(getPreprocessorOutputOpts(), Consumer, 5070 getFrontendOpts().ProgramAction); 5071 GenerateDependencyOutputArgs(getDependencyOutputOpts(), Consumer); 5072 } 5073 5074 std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const { 5075 std::vector<std::string> Args{"-cc1"}; 5076 generateCC1CommandLine( 5077 [&Args](const Twine &Arg) { Args.push_back(Arg.str()); }); 5078 return Args; 5079 } 5080 5081 void CompilerInvocation::resetNonModularOptions() { 5082 getLangOpts().resetNonModularOptions(); 5083 getPreprocessorOpts().resetNonModularOptions(); 5084 getCodeGenOpts().resetNonModularOptions(getHeaderSearchOpts().ModuleFormat); 5085 } 5086 5087 void CompilerInvocation::clearImplicitModuleBuildOptions() { 5088 getLangOpts().ImplicitModules = false; 5089 getHeaderSearchOpts().ImplicitModuleMaps = false; 5090 getHeaderSearchOpts().ModuleCachePath.clear(); 5091 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 5092 getHeaderSearchOpts().BuildSessionTimestamp = 0; 5093 // The specific values we canonicalize to for pruning don't affect behaviour, 5094 /// so use the default values so they may be dropped from the command-line. 5095 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 5096 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 5097 } 5098 5099 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5100 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 5101 DiagnosticsEngine &Diags) { 5102 return createVFSFromCompilerInvocation(CI, Diags, 5103 llvm::vfs::getRealFileSystem()); 5104 } 5105 5106 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5107 clang::createVFSFromCompilerInvocation( 5108 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 5109 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5110 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 5111 Diags, std::move(BaseFS)); 5112 } 5113 5114 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 5115 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 5116 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5117 if (VFSOverlayFiles.empty()) 5118 return BaseFS; 5119 5120 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 5121 // earlier vfs files are on the bottom 5122 for (const auto &File : VFSOverlayFiles) { 5123 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 5124 Result->getBufferForFile(File); 5125 if (!Buffer) { 5126 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 5127 continue; 5128 } 5129 5130 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 5131 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 5132 /*DiagContext*/ nullptr, Result); 5133 if (!FS) { 5134 Diags.Report(diag::err_invalid_vfs_overlay) << File; 5135 continue; 5136 } 5137 5138 Result = FS; 5139 } 5140 return Result; 5141 } 5142