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.ReturnAddresses = LangOpts.PointerAuthReturns; 1514 Opts.AuthTraps = LangOpts.PointerAuthAuthTraps; 1515 Opts.IndirectGotos = LangOpts.PointerAuthIndirectGotos; 1516 } 1517 1518 static void parsePointerAuthOptions(PointerAuthOptions &Opts, 1519 const LangOptions &LangOpts, 1520 const llvm::Triple &Triple, 1521 DiagnosticsEngine &Diags) { 1522 if (!LangOpts.PointerAuthCalls && !LangOpts.PointerAuthReturns && 1523 !LangOpts.PointerAuthAuthTraps && !LangOpts.PointerAuthIndirectGotos) 1524 return; 1525 1526 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple); 1527 } 1528 1529 void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts, 1530 ArgumentConsumer Consumer, 1531 const llvm::Triple &T, 1532 const std::string &OutputFile, 1533 const LangOptions *LangOpts) { 1534 const CodeGenOptions &CodeGenOpts = Opts; 1535 1536 if (Opts.OptimizationLevel == 0) 1537 GenerateArg(Consumer, OPT_O0); 1538 else 1539 GenerateArg(Consumer, OPT_O, Twine(Opts.OptimizationLevel)); 1540 1541 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1542 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 1543 #include "clang/Driver/Options.inc" 1544 #undef CODEGEN_OPTION_WITH_MARSHALLING 1545 1546 if (Opts.OptimizationLevel > 0) { 1547 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1548 GenerateArg(Consumer, OPT_finline_functions); 1549 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1550 GenerateArg(Consumer, OPT_finline_hint_functions); 1551 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1552 GenerateArg(Consumer, OPT_fno_inline); 1553 } 1554 1555 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1556 GenerateArg(Consumer, OPT_fdirect_access_external_data); 1557 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1558 GenerateArg(Consumer, OPT_fno_direct_access_external_data); 1559 1560 std::optional<StringRef> DebugInfoVal; 1561 switch (Opts.DebugInfo) { 1562 case llvm::codegenoptions::DebugLineTablesOnly: 1563 DebugInfoVal = "line-tables-only"; 1564 break; 1565 case llvm::codegenoptions::DebugDirectivesOnly: 1566 DebugInfoVal = "line-directives-only"; 1567 break; 1568 case llvm::codegenoptions::DebugInfoConstructor: 1569 DebugInfoVal = "constructor"; 1570 break; 1571 case llvm::codegenoptions::LimitedDebugInfo: 1572 DebugInfoVal = "limited"; 1573 break; 1574 case llvm::codegenoptions::FullDebugInfo: 1575 DebugInfoVal = "standalone"; 1576 break; 1577 case llvm::codegenoptions::UnusedTypeInfo: 1578 DebugInfoVal = "unused-types"; 1579 break; 1580 case llvm::codegenoptions::NoDebugInfo: // default value 1581 DebugInfoVal = std::nullopt; 1582 break; 1583 case llvm::codegenoptions::LocTrackingOnly: // implied value 1584 DebugInfoVal = std::nullopt; 1585 break; 1586 } 1587 if (DebugInfoVal) 1588 GenerateArg(Consumer, OPT_debug_info_kind_EQ, *DebugInfoVal); 1589 1590 for (const auto &Prefix : Opts.DebugPrefixMap) 1591 GenerateArg(Consumer, OPT_fdebug_prefix_map_EQ, 1592 Prefix.first + "=" + Prefix.second); 1593 1594 for (const auto &Prefix : Opts.CoveragePrefixMap) 1595 GenerateArg(Consumer, OPT_fcoverage_prefix_map_EQ, 1596 Prefix.first + "=" + Prefix.second); 1597 1598 if (Opts.NewStructPathTBAA) 1599 GenerateArg(Consumer, OPT_new_struct_path_tbaa); 1600 1601 if (Opts.OptimizeSize == 1) 1602 GenerateArg(Consumer, OPT_O, "s"); 1603 else if (Opts.OptimizeSize == 2) 1604 GenerateArg(Consumer, OPT_O, "z"); 1605 1606 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1607 // -ffreestanding. We'll consider that when generating them. 1608 1609 // NoBuiltinFuncs are generated by LangOptions. 1610 1611 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1612 GenerateArg(Consumer, OPT_funroll_loops); 1613 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1614 GenerateArg(Consumer, OPT_fno_unroll_loops); 1615 1616 if (!Opts.BinutilsVersion.empty()) 1617 GenerateArg(Consumer, OPT_fbinutils_version_EQ, Opts.BinutilsVersion); 1618 1619 if (Opts.DebugNameTable == 1620 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1621 GenerateArg(Consumer, OPT_ggnu_pubnames); 1622 else if (Opts.DebugNameTable == 1623 static_cast<unsigned>( 1624 llvm::DICompileUnit::DebugNameTableKind::Default)) 1625 GenerateArg(Consumer, OPT_gpubnames); 1626 1627 if (Opts.DebugTemplateAlias) 1628 GenerateArg(Consumer, OPT_gtemplate_alias); 1629 1630 auto TNK = Opts.getDebugSimpleTemplateNames(); 1631 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) { 1632 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple) 1633 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "simple"); 1634 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled) 1635 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "mangled"); 1636 } 1637 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1638 // it or PGOUseInstrumentor. 1639 1640 if (Opts.TimePasses) { 1641 if (Opts.TimePassesPerRun) 1642 GenerateArg(Consumer, OPT_ftime_report_EQ, "per-pass-run"); 1643 else 1644 GenerateArg(Consumer, OPT_ftime_report); 1645 } 1646 1647 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1648 GenerateArg(Consumer, OPT_flto_EQ, "full"); 1649 1650 if (Opts.PrepareForThinLTO) 1651 GenerateArg(Consumer, OPT_flto_EQ, "thin"); 1652 1653 if (!Opts.ThinLTOIndexFile.empty()) 1654 GenerateArg(Consumer, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile); 1655 1656 if (Opts.SaveTempsFilePrefix == OutputFile) 1657 GenerateArg(Consumer, OPT_save_temps_EQ, "obj"); 1658 1659 StringRef MemProfileBasename("memprof.profraw"); 1660 if (!Opts.MemoryProfileOutput.empty()) { 1661 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1662 GenerateArg(Consumer, OPT_fmemory_profile); 1663 } else { 1664 size_t ArgLength = 1665 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1666 GenerateArg(Consumer, OPT_fmemory_profile_EQ, 1667 Opts.MemoryProfileOutput.substr(0, ArgLength)); 1668 } 1669 } 1670 1671 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1672 GenerateArg(Consumer, OPT_coverage_version_EQ, 1673 StringRef(Opts.CoverageVersion, 4)); 1674 1675 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1676 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1677 // won't be generated.) 1678 1679 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1680 std::string InstrBundle = 1681 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1682 if (!InstrBundle.empty()) 1683 GenerateArg(Consumer, OPT_fxray_instrumentation_bundle, InstrBundle); 1684 } 1685 1686 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1687 GenerateArg(Consumer, OPT_fcf_protection_EQ, "full"); 1688 else if (Opts.CFProtectionReturn) 1689 GenerateArg(Consumer, OPT_fcf_protection_EQ, "return"); 1690 else if (Opts.CFProtectionBranch) 1691 GenerateArg(Consumer, OPT_fcf_protection_EQ, "branch"); 1692 1693 if (Opts.FunctionReturnThunks) 1694 GenerateArg(Consumer, OPT_mfunction_return_EQ, "thunk-extern"); 1695 1696 for (const auto &F : Opts.LinkBitcodeFiles) { 1697 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1698 F.PropagateAttrs && F.Internalize; 1699 GenerateArg(Consumer, 1700 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1701 F.Filename); 1702 } 1703 1704 if (Opts.EmulatedTLS) 1705 GenerateArg(Consumer, OPT_femulated_tls); 1706 1707 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1708 GenerateArg(Consumer, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str()); 1709 1710 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1711 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1712 GenerateArg(Consumer, OPT_fdenormal_fp_math_f32_EQ, 1713 Opts.FP32DenormalMode.str()); 1714 1715 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1716 OptSpecifier Opt = 1717 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1718 GenerateArg(Consumer, Opt); 1719 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1720 OptSpecifier Opt = 1721 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1722 GenerateArg(Consumer, Opt); 1723 } 1724 1725 if (Opts.EnableAIXExtendedAltivecABI) 1726 GenerateArg(Consumer, OPT_mabi_EQ_vec_extabi); 1727 1728 if (Opts.XCOFFReadOnlyPointers) 1729 GenerateArg(Consumer, OPT_mxcoff_roptr); 1730 1731 if (!Opts.OptRecordPasses.empty()) 1732 GenerateArg(Consumer, OPT_opt_record_passes, Opts.OptRecordPasses); 1733 1734 if (!Opts.OptRecordFormat.empty()) 1735 GenerateArg(Consumer, OPT_opt_record_format, Opts.OptRecordFormat); 1736 1737 GenerateOptimizationRemark(Consumer, OPT_Rpass_EQ, "pass", 1738 Opts.OptimizationRemark); 1739 1740 GenerateOptimizationRemark(Consumer, OPT_Rpass_missed_EQ, "pass-missed", 1741 Opts.OptimizationRemarkMissed); 1742 1743 GenerateOptimizationRemark(Consumer, OPT_Rpass_analysis_EQ, "pass-analysis", 1744 Opts.OptimizationRemarkAnalysis); 1745 1746 GenerateArg(Consumer, OPT_fdiagnostics_hotness_threshold_EQ, 1747 Opts.DiagnosticsHotnessThreshold 1748 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1749 : "auto"); 1750 1751 GenerateArg(Consumer, OPT_fdiagnostics_misexpect_tolerance_EQ, 1752 Twine(*Opts.DiagnosticsMisExpectTolerance)); 1753 1754 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1755 GenerateArg(Consumer, OPT_fsanitize_recover_EQ, Sanitizer); 1756 1757 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1758 GenerateArg(Consumer, OPT_fsanitize_trap_EQ, Sanitizer); 1759 1760 if (!Opts.EmitVersionIdentMetadata) 1761 GenerateArg(Consumer, OPT_Qn); 1762 1763 switch (Opts.FiniteLoops) { 1764 case CodeGenOptions::FiniteLoopsKind::Language: 1765 break; 1766 case CodeGenOptions::FiniteLoopsKind::Always: 1767 GenerateArg(Consumer, OPT_ffinite_loops); 1768 break; 1769 case CodeGenOptions::FiniteLoopsKind::Never: 1770 GenerateArg(Consumer, OPT_fno_finite_loops); 1771 break; 1772 } 1773 } 1774 1775 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1776 InputKind IK, 1777 DiagnosticsEngine &Diags, 1778 const llvm::Triple &T, 1779 const std::string &OutputFile, 1780 const LangOptions &LangOptsRef) { 1781 unsigned NumErrorsBefore = Diags.getNumErrors(); 1782 1783 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1784 // TODO: This could be done in Driver 1785 unsigned MaxOptLevel = 3; 1786 if (OptimizationLevel > MaxOptLevel) { 1787 // If the optimization level is not supported, fall back on the default 1788 // optimization 1789 Diags.Report(diag::warn_drv_optimization_value) 1790 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1791 OptimizationLevel = MaxOptLevel; 1792 } 1793 Opts.OptimizationLevel = OptimizationLevel; 1794 1795 // The key paths of codegen options defined in Options.td start with 1796 // "CodeGenOpts.". Let's provide the expected variable name and type. 1797 CodeGenOptions &CodeGenOpts = Opts; 1798 // Some codegen options depend on language options. Let's provide the expected 1799 // variable name and type. 1800 const LangOptions *LangOpts = &LangOptsRef; 1801 1802 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1803 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1804 #include "clang/Driver/Options.inc" 1805 #undef CODEGEN_OPTION_WITH_MARSHALLING 1806 1807 // At O0 we want to fully disable inlining outside of cases marked with 1808 // 'alwaysinline' that are required for correctness. 1809 if (Opts.OptimizationLevel == 0) { 1810 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1811 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1812 options::OPT_finline_hint_functions, 1813 options::OPT_fno_inline_functions, 1814 options::OPT_fno_inline)) { 1815 // Explicit inlining flags can disable some or all inlining even at 1816 // optimization levels above zero. 1817 if (A->getOption().matches(options::OPT_finline_functions)) 1818 Opts.setInlining(CodeGenOptions::NormalInlining); 1819 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1820 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1821 else 1822 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1823 } else { 1824 Opts.setInlining(CodeGenOptions::NormalInlining); 1825 } 1826 1827 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1828 // -fdirect-access-external-data. 1829 Opts.DirectAccessExternalData = 1830 Args.hasArg(OPT_fdirect_access_external_data) || 1831 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1832 LangOpts->PICLevel == 0); 1833 1834 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1835 unsigned Val = 1836 llvm::StringSwitch<unsigned>(A->getValue()) 1837 .Case("line-tables-only", llvm::codegenoptions::DebugLineTablesOnly) 1838 .Case("line-directives-only", 1839 llvm::codegenoptions::DebugDirectivesOnly) 1840 .Case("constructor", llvm::codegenoptions::DebugInfoConstructor) 1841 .Case("limited", llvm::codegenoptions::LimitedDebugInfo) 1842 .Case("standalone", llvm::codegenoptions::FullDebugInfo) 1843 .Case("unused-types", llvm::codegenoptions::UnusedTypeInfo) 1844 .Default(~0U); 1845 if (Val == ~0U) 1846 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1847 << A->getValue(); 1848 else 1849 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val)); 1850 } 1851 1852 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1853 // constructor homing, and vice versa for -fno-use-ctor-homing. 1854 if (const Arg *A = 1855 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1856 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1857 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo) 1858 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor); 1859 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1860 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor) 1861 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo); 1862 } 1863 1864 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1865 auto Split = StringRef(Arg).split('='); 1866 Opts.DebugPrefixMap.emplace_back(Split.first, Split.second); 1867 } 1868 1869 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1870 auto Split = StringRef(Arg).split('='); 1871 Opts.CoveragePrefixMap.emplace_back(Split.first, Split.second); 1872 } 1873 1874 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1875 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1876 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1877 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1878 1879 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1880 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1881 Opts.EmitCallSiteInfo = true; 1882 1883 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1884 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1885 << Opts.DIBugsReportFilePath; 1886 Opts.DIBugsReportFilePath = ""; 1887 } 1888 1889 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1890 Args.hasArg(OPT_new_struct_path_tbaa); 1891 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1892 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1893 if (Opts.SimplifyLibCalls) 1894 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1895 Opts.UnrollLoops = 1896 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1897 (Opts.OptimizationLevel > 1)); 1898 Opts.BinutilsVersion = 1899 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1900 1901 Opts.DebugTemplateAlias = Args.hasArg(OPT_gtemplate_alias); 1902 1903 Opts.DebugNameTable = static_cast<unsigned>( 1904 Args.hasArg(OPT_ggnu_pubnames) 1905 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1906 : Args.hasArg(OPT_gpubnames) 1907 ? llvm::DICompileUnit::DebugNameTableKind::Default 1908 : llvm::DICompileUnit::DebugNameTableKind::None); 1909 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1910 StringRef Value = A->getValue(); 1911 if (Value != "simple" && Value != "mangled") 1912 Diags.Report(diag::err_drv_unsupported_option_argument) 1913 << A->getSpelling() << A->getValue(); 1914 Opts.setDebugSimpleTemplateNames( 1915 StringRef(A->getValue()) == "simple" 1916 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple 1917 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled); 1918 } 1919 1920 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1921 Opts.TimePasses = true; 1922 1923 // -ftime-report= is only for new pass manager. 1924 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1925 StringRef Val = A->getValue(); 1926 if (Val == "per-pass") 1927 Opts.TimePassesPerRun = false; 1928 else if (Val == "per-pass-run") 1929 Opts.TimePassesPerRun = true; 1930 else 1931 Diags.Report(diag::err_drv_invalid_value) 1932 << A->getAsString(Args) << A->getValue(); 1933 } 1934 } 1935 1936 Opts.PrepareForLTO = false; 1937 Opts.PrepareForThinLTO = false; 1938 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1939 Opts.PrepareForLTO = true; 1940 StringRef S = A->getValue(); 1941 if (S == "thin") 1942 Opts.PrepareForThinLTO = true; 1943 else if (S != "full") 1944 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1945 if (Args.hasArg(OPT_funified_lto)) 1946 Opts.PrepareForThinLTO = true; 1947 } 1948 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1949 if (IK.getLanguage() != Language::LLVM_IR) 1950 Diags.Report(diag::err_drv_argument_only_allowed_with) 1951 << A->getAsString(Args) << "-x ir"; 1952 Opts.ThinLTOIndexFile = 1953 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1954 } 1955 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1956 Opts.SaveTempsFilePrefix = 1957 llvm::StringSwitch<std::string>(A->getValue()) 1958 .Case("obj", OutputFile) 1959 .Default(llvm::sys::path::filename(OutputFile).str()); 1960 1961 // The memory profile runtime appends the pid to make this name more unique. 1962 const char *MemProfileBasename = "memprof.profraw"; 1963 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1964 SmallString<128> Path( 1965 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1966 llvm::sys::path::append(Path, MemProfileBasename); 1967 Opts.MemoryProfileOutput = std::string(Path); 1968 } else if (Args.hasArg(OPT_fmemory_profile)) 1969 Opts.MemoryProfileOutput = MemProfileBasename; 1970 1971 memcpy(Opts.CoverageVersion, "408*", 4); 1972 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) { 1973 if (Args.hasArg(OPT_coverage_version_EQ)) { 1974 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1975 if (CoverageVersion.size() != 4) { 1976 Diags.Report(diag::err_drv_invalid_value) 1977 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1978 << CoverageVersion; 1979 } else { 1980 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1981 } 1982 } 1983 } 1984 // FIXME: For backend options that are not yet recorded as function 1985 // attributes in the IR, keep track of them so we can embed them in a 1986 // separate data section and use them when building the bitcode. 1987 for (const auto &A : Args) { 1988 // Do not encode output and input. 1989 if (A->getOption().getID() == options::OPT_o || 1990 A->getOption().getID() == options::OPT_INPUT || 1991 A->getOption().getID() == options::OPT_x || 1992 A->getOption().getID() == options::OPT_fembed_bitcode || 1993 A->getOption().matches(options::OPT_W_Group)) 1994 continue; 1995 ArgStringList ASL; 1996 A->render(Args, ASL); 1997 for (const auto &arg : ASL) { 1998 StringRef ArgStr(arg); 1999 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 2000 // using \00 to separate each commandline options. 2001 Opts.CmdArgs.push_back('\0'); 2002 } 2003 } 2004 2005 auto XRayInstrBundles = 2006 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 2007 if (XRayInstrBundles.empty()) 2008 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 2009 else 2010 for (const auto &A : XRayInstrBundles) 2011 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 2012 Diags, Opts.XRayInstrumentationBundle); 2013 2014 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2015 StringRef Name = A->getValue(); 2016 if (Name == "full") { 2017 Opts.CFProtectionReturn = 1; 2018 Opts.CFProtectionBranch = 1; 2019 } else if (Name == "return") 2020 Opts.CFProtectionReturn = 1; 2021 else if (Name == "branch") 2022 Opts.CFProtectionBranch = 1; 2023 else if (Name != "none") 2024 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2025 } 2026 2027 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 2028 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 2029 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 2030 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 2031 .Default(llvm::FunctionReturnThunksKind::Invalid); 2032 // SystemZ might want to add support for "expolines." 2033 if (!T.isX86()) 2034 Diags.Report(diag::err_drv_argument_not_allowed_with) 2035 << A->getSpelling() << T.getTriple(); 2036 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 2037 Diags.Report(diag::err_drv_invalid_value) 2038 << A->getAsString(Args) << A->getValue(); 2039 else if (Val == llvm::FunctionReturnThunksKind::Extern && 2040 Args.getLastArgValue(OPT_mcmodel_EQ) == "large") 2041 Diags.Report(diag::err_drv_argument_not_allowed_with) 2042 << A->getAsString(Args) 2043 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 2044 else 2045 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 2046 } 2047 2048 for (auto *A : 2049 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 2050 CodeGenOptions::BitcodeFileToLink F; 2051 F.Filename = A->getValue(); 2052 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 2053 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 2054 // When linking CUDA bitcode, propagate function attributes so that 2055 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 2056 F.PropagateAttrs = true; 2057 F.Internalize = true; 2058 } 2059 Opts.LinkBitcodeFiles.push_back(F); 2060 } 2061 2062 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 2063 StringRef Val = A->getValue(); 2064 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 2065 Opts.FP32DenormalMode = Opts.FPDenormalMode; 2066 if (!Opts.FPDenormalMode.isValid()) 2067 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2068 } 2069 2070 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 2071 StringRef Val = A->getValue(); 2072 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 2073 if (!Opts.FP32DenormalMode.isValid()) 2074 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2075 } 2076 2077 // X86_32 has -fppc-struct-return and -freg-struct-return. 2078 // PPC32 has -maix-struct-return and -msvr4-struct-return. 2079 if (Arg *A = 2080 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 2081 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 2082 // TODO: We might want to consider enabling these options on AIX in the 2083 // future. 2084 if (T.isOSAIX()) 2085 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2086 << A->getSpelling() << T.str(); 2087 2088 const Option &O = A->getOption(); 2089 if (O.matches(OPT_fpcc_struct_return) || 2090 O.matches(OPT_maix_struct_return)) { 2091 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 2092 } else { 2093 assert(O.matches(OPT_freg_struct_return) || 2094 O.matches(OPT_msvr4_struct_return)); 2095 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 2096 } 2097 } 2098 2099 if (Arg *A = Args.getLastArg(OPT_mxcoff_roptr)) { 2100 if (!T.isOSAIX()) 2101 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2102 << A->getSpelling() << T.str(); 2103 2104 // Since the storage mapping class is specified per csect, 2105 // without using data sections, it is less effective to use read-only 2106 // pointers. Using read-only pointers may cause other RO variables in the 2107 // same csect to become RW when the linker acts upon `-bforceimprw`; 2108 // therefore, we require that separate data sections 2109 // are used when `-mxcoff-roptr` is in effect. We respect the setting of 2110 // data-sections since we have not found reasons to do otherwise that 2111 // overcome the user surprise of not respecting the setting. 2112 if (!Args.hasFlag(OPT_fdata_sections, OPT_fno_data_sections, false)) 2113 Diags.Report(diag::err_roptr_requires_data_sections); 2114 2115 Opts.XCOFFReadOnlyPointers = true; 2116 } 2117 2118 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 2119 if (!T.isOSAIX() || T.isPPC32()) 2120 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2121 << A->getSpelling() << T.str(); 2122 } 2123 2124 bool NeedLocTracking = false; 2125 2126 if (!Opts.OptRecordFile.empty()) 2127 NeedLocTracking = true; 2128 2129 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 2130 Opts.OptRecordPasses = A->getValue(); 2131 NeedLocTracking = true; 2132 } 2133 2134 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 2135 Opts.OptRecordFormat = A->getValue(); 2136 NeedLocTracking = true; 2137 } 2138 2139 Opts.OptimizationRemark = 2140 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 2141 2142 Opts.OptimizationRemarkMissed = 2143 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 2144 2145 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 2146 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 2147 2148 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 2149 Opts.OptimizationRemarkMissed.hasValidPattern() || 2150 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 2151 2152 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 2153 bool UsingProfile = 2154 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 2155 2156 if (Opts.DiagnosticsWithHotness && !UsingProfile && 2157 // An IR file will contain PGO as metadata 2158 IK.getLanguage() != Language::LLVM_IR) 2159 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2160 << "-fdiagnostics-show-hotness"; 2161 2162 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 2163 if (auto *arg = 2164 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 2165 auto ResultOrErr = 2166 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 2167 2168 if (!ResultOrErr) { 2169 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 2170 << "-fdiagnostics-hotness-threshold="; 2171 } else { 2172 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 2173 if ((!Opts.DiagnosticsHotnessThreshold || 2174 *Opts.DiagnosticsHotnessThreshold > 0) && 2175 !UsingProfile) 2176 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2177 << "-fdiagnostics-hotness-threshold="; 2178 } 2179 } 2180 2181 if (auto *arg = 2182 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2183 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2184 2185 if (!ResultOrErr) { 2186 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2187 << "-fdiagnostics-misexpect-tolerance="; 2188 } else { 2189 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2190 if ((!Opts.DiagnosticsMisExpectTolerance || 2191 *Opts.DiagnosticsMisExpectTolerance > 0) && 2192 !UsingProfile) 2193 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2194 << "-fdiagnostics-misexpect-tolerance="; 2195 } 2196 } 2197 2198 // If the user requested to use a sample profile for PGO, then the 2199 // backend will need to track source location information so the profile 2200 // can be incorporated into the IR. 2201 if (UsingSampleProfile) 2202 NeedLocTracking = true; 2203 2204 if (!Opts.StackUsageOutput.empty()) 2205 NeedLocTracking = true; 2206 2207 // If the user requested a flag that requires source locations available in 2208 // the backend, make sure that the backend tracks source location information. 2209 if (NeedLocTracking && 2210 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo) 2211 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly); 2212 2213 // Parse -fsanitize-recover= arguments. 2214 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2215 parseSanitizerKinds("-fsanitize-recover=", 2216 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2217 Opts.SanitizeRecover); 2218 parseSanitizerKinds("-fsanitize-trap=", 2219 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2220 Opts.SanitizeTrap); 2221 2222 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2223 2224 if (!LangOpts->CUDAIsDevice) 2225 parsePointerAuthOptions(Opts.PointerAuth, *LangOpts, T, Diags); 2226 2227 if (Args.hasArg(options::OPT_ffinite_loops)) 2228 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2229 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2230 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2231 2232 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2233 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2234 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2235 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2236 2237 return Diags.getNumErrors() == NumErrorsBefore; 2238 } 2239 2240 static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2241 ArgumentConsumer Consumer) { 2242 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2243 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2244 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2245 #include "clang/Driver/Options.inc" 2246 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2247 2248 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2249 GenerateArg(Consumer, OPT_show_includes); 2250 2251 for (const auto &Dep : Opts.ExtraDeps) { 2252 switch (Dep.second) { 2253 case EDK_SanitizeIgnorelist: 2254 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2255 continue; 2256 case EDK_ModuleFile: 2257 // Module file arguments are generated from FrontendOptions and 2258 // HeaderSearchOptions. 2259 continue; 2260 case EDK_ProfileList: 2261 // Profile list arguments are generated from LanguageOptions via the 2262 // marshalling infrastructure. 2263 continue; 2264 case EDK_DepFileEntry: 2265 GenerateArg(Consumer, OPT_fdepfile_entry, Dep.first); 2266 break; 2267 } 2268 } 2269 } 2270 2271 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2272 ArgList &Args, DiagnosticsEngine &Diags, 2273 frontend::ActionKind Action, 2274 bool ShowLineMarkers) { 2275 unsigned NumErrorsBefore = Diags.getNumErrors(); 2276 2277 DependencyOutputOptions &DependencyOutputOpts = Opts; 2278 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2279 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2280 #include "clang/Driver/Options.inc" 2281 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2282 2283 if (Args.hasArg(OPT_show_includes)) { 2284 // Writing both /showIncludes and preprocessor output to stdout 2285 // would produce interleaved output, so use stderr for /showIncludes. 2286 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2287 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2288 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2289 else 2290 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2291 } else { 2292 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2293 } 2294 2295 // Add sanitizer ignorelists as extra dependencies. 2296 // They won't be discovered by the regular preprocessor, so 2297 // we let make / ninja to know about this implicit dependency. 2298 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2299 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2300 StringRef Val = A->getValue(); 2301 if (!Val.contains('=')) 2302 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2303 } 2304 if (Opts.IncludeSystemHeaders) { 2305 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2306 StringRef Val = A->getValue(); 2307 if (!Val.contains('=')) 2308 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2309 } 2310 } 2311 } 2312 2313 // -fprofile-list= dependencies. 2314 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2315 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2316 2317 // Propagate the extra dependencies. 2318 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2319 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2320 2321 // Only the -fmodule-file=<file> form. 2322 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2323 StringRef Val = A->getValue(); 2324 if (!Val.contains('=')) 2325 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2326 } 2327 2328 // Check for invalid combinations of header-include-format 2329 // and header-include-filtering. 2330 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2331 Opts.HeaderIncludeFiltering != HIFIL_None) || 2332 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2333 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2334 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2335 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2336 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2337 2338 return Diags.getNumErrors() == NumErrorsBefore; 2339 } 2340 2341 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2342 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2343 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2344 // Support both clang's -f[no-]color-diagnostics and gcc's 2345 // -f[no-]diagnostics-colors[=never|always|auto]. 2346 enum { 2347 Colors_On, 2348 Colors_Off, 2349 Colors_Auto 2350 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2351 for (auto *A : Args) { 2352 const Option &O = A->getOption(); 2353 if (O.matches(options::OPT_fcolor_diagnostics)) { 2354 ShowColors = Colors_On; 2355 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2356 ShowColors = Colors_Off; 2357 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2358 StringRef Value(A->getValue()); 2359 if (Value == "always") 2360 ShowColors = Colors_On; 2361 else if (Value == "never") 2362 ShowColors = Colors_Off; 2363 else if (Value == "auto") 2364 ShowColors = Colors_Auto; 2365 } 2366 } 2367 return ShowColors == Colors_On || 2368 (ShowColors == Colors_Auto && 2369 llvm::sys::Process::StandardErrHasColors()); 2370 } 2371 2372 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2373 DiagnosticsEngine &Diags) { 2374 bool Success = true; 2375 for (const auto &Prefix : VerifyPrefixes) { 2376 // Every prefix must start with a letter and contain only alphanumeric 2377 // characters, hyphens, and underscores. 2378 auto BadChar = llvm::find_if(Prefix, [](char C) { 2379 return !isAlphanumeric(C) && C != '-' && C != '_'; 2380 }); 2381 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2382 Success = false; 2383 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2384 Diags.Report(diag::note_drv_verify_prefix_spelling); 2385 } 2386 } 2387 return Success; 2388 } 2389 2390 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2391 ArgumentConsumer Consumer) { 2392 const FileSystemOptions &FileSystemOpts = Opts; 2393 2394 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2395 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2396 #include "clang/Driver/Options.inc" 2397 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2398 } 2399 2400 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2401 DiagnosticsEngine &Diags) { 2402 unsigned NumErrorsBefore = Diags.getNumErrors(); 2403 2404 FileSystemOptions &FileSystemOpts = Opts; 2405 2406 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2407 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2408 #include "clang/Driver/Options.inc" 2409 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2410 2411 return Diags.getNumErrors() == NumErrorsBefore; 2412 } 2413 2414 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2415 ArgumentConsumer Consumer) { 2416 const MigratorOptions &MigratorOpts = Opts; 2417 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2418 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2419 #include "clang/Driver/Options.inc" 2420 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2421 } 2422 2423 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2424 DiagnosticsEngine &Diags) { 2425 unsigned NumErrorsBefore = Diags.getNumErrors(); 2426 2427 MigratorOptions &MigratorOpts = Opts; 2428 2429 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2430 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2431 #include "clang/Driver/Options.inc" 2432 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2433 2434 return Diags.getNumErrors() == NumErrorsBefore; 2435 } 2436 2437 void CompilerInvocationBase::GenerateDiagnosticArgs( 2438 const DiagnosticOptions &Opts, ArgumentConsumer Consumer, 2439 bool DefaultDiagColor) { 2440 const DiagnosticOptions *DiagnosticOpts = &Opts; 2441 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2442 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2443 #include "clang/Driver/Options.inc" 2444 #undef DIAG_OPTION_WITH_MARSHALLING 2445 2446 if (!Opts.DiagnosticSerializationFile.empty()) 2447 GenerateArg(Consumer, OPT_diagnostic_serialized_file, 2448 Opts.DiagnosticSerializationFile); 2449 2450 if (Opts.ShowColors) 2451 GenerateArg(Consumer, OPT_fcolor_diagnostics); 2452 2453 if (Opts.VerifyDiagnostics && 2454 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2455 GenerateArg(Consumer, OPT_verify); 2456 2457 for (const auto &Prefix : Opts.VerifyPrefixes) 2458 if (Prefix != "expected") 2459 GenerateArg(Consumer, OPT_verify_EQ, Prefix); 2460 2461 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2462 if (VIU == DiagnosticLevelMask::None) { 2463 // This is the default, don't generate anything. 2464 } else if (VIU == DiagnosticLevelMask::All) { 2465 GenerateArg(Consumer, OPT_verify_ignore_unexpected); 2466 } else { 2467 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2468 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "note"); 2469 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2470 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "remark"); 2471 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2472 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "warning"); 2473 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2474 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "error"); 2475 } 2476 2477 for (const auto &Warning : Opts.Warnings) { 2478 // This option is automatically generated from UndefPrefixes. 2479 if (Warning == "undef-prefix") 2480 continue; 2481 // This option is automatically generated from CheckConstexprFunctionBodies. 2482 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr") 2483 continue; 2484 Consumer(StringRef("-W") + Warning); 2485 } 2486 2487 for (const auto &Remark : Opts.Remarks) { 2488 // These arguments are generated from OptimizationRemark fields of 2489 // CodeGenOptions. 2490 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2491 "pass-analysis", "no-pass-analysis", 2492 "pass-missed", "no-pass-missed"}; 2493 if (llvm::is_contained(IgnoredRemarks, Remark)) 2494 continue; 2495 2496 Consumer(StringRef("-R") + Remark); 2497 } 2498 } 2499 2500 std::unique_ptr<DiagnosticOptions> 2501 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2502 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2503 unsigned MissingArgIndex, MissingArgCount; 2504 InputArgList Args = getDriverOptTable().ParseArgs( 2505 Argv.slice(1), MissingArgIndex, MissingArgCount); 2506 2507 bool ShowColors = true; 2508 if (std::optional<std::string> NoColor = 2509 llvm::sys::Process::GetEnv("NO_COLOR"); 2510 NoColor && !NoColor->empty()) { 2511 // If the user set the NO_COLOR environment variable, we'll honor that 2512 // unless the command line overrides it. 2513 ShowColors = false; 2514 } 2515 2516 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2517 // Any errors that would be diagnosed here will also be diagnosed later, 2518 // when the DiagnosticsEngine actually exists. 2519 (void)ParseDiagnosticArgs(*DiagOpts, Args, /*Diags=*/nullptr, ShowColors); 2520 return DiagOpts; 2521 } 2522 2523 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2524 DiagnosticsEngine *Diags, 2525 bool DefaultDiagColor) { 2526 std::optional<DiagnosticsEngine> IgnoringDiags; 2527 if (!Diags) { 2528 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2529 new IgnoringDiagConsumer()); 2530 Diags = &*IgnoringDiags; 2531 } 2532 2533 unsigned NumErrorsBefore = Diags->getNumErrors(); 2534 2535 // The key paths of diagnostic options defined in Options.td start with 2536 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2537 DiagnosticOptions *DiagnosticOpts = &Opts; 2538 2539 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2540 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__) 2541 #include "clang/Driver/Options.inc" 2542 #undef DIAG_OPTION_WITH_MARSHALLING 2543 2544 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2545 2546 if (Arg *A = 2547 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2548 Opts.DiagnosticSerializationFile = A->getValue(); 2549 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2550 2551 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2552 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2553 if (Args.hasArg(OPT_verify)) 2554 Opts.VerifyPrefixes.push_back("expected"); 2555 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2556 // then sort it to prepare for fast lookup using std::binary_search. 2557 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2558 Opts.VerifyDiagnostics = false; 2559 else 2560 llvm::sort(Opts.VerifyPrefixes); 2561 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2562 parseDiagnosticLevelMask( 2563 "-verify-ignore-unexpected=", 2564 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2565 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2566 DiagMask = DiagnosticLevelMask::All; 2567 Opts.setVerifyIgnoreUnexpected(DiagMask); 2568 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2569 Diags->Report(diag::warn_ignoring_ftabstop_value) 2570 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2571 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2572 } 2573 2574 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2575 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2576 2577 return Diags->getNumErrors() == NumErrorsBefore; 2578 } 2579 2580 /// Parse the argument to the -ftest-module-file-extension 2581 /// command-line argument. 2582 /// 2583 /// \returns true on error, false on success. 2584 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2585 std::string &BlockName, 2586 unsigned &MajorVersion, 2587 unsigned &MinorVersion, 2588 bool &Hashed, 2589 std::string &UserInfo) { 2590 SmallVector<StringRef, 5> Args; 2591 Arg.split(Args, ':', 5); 2592 if (Args.size() < 5) 2593 return true; 2594 2595 BlockName = std::string(Args[0]); 2596 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2597 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2598 if (Args[3].getAsInteger(2, Hashed)) return true; 2599 if (Args.size() > 4) 2600 UserInfo = std::string(Args[4]); 2601 return false; 2602 } 2603 2604 /// Return a table that associates command line option specifiers with the 2605 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2606 /// intentionally missing, as this case is handled separately from other 2607 /// frontend options. 2608 static const auto &getFrontendActionTable() { 2609 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2610 {frontend::ASTDeclList, OPT_ast_list}, 2611 2612 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2613 {frontend::ASTDump, OPT_ast_dump_all}, 2614 {frontend::ASTDump, OPT_ast_dump_EQ}, 2615 {frontend::ASTDump, OPT_ast_dump}, 2616 {frontend::ASTDump, OPT_ast_dump_lookups}, 2617 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2618 2619 {frontend::ASTPrint, OPT_ast_print}, 2620 {frontend::ASTView, OPT_ast_view}, 2621 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2622 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2623 {frontend::DumpTokens, OPT_dump_tokens}, 2624 {frontend::EmitAssembly, OPT_S}, 2625 {frontend::EmitBC, OPT_emit_llvm_bc}, 2626 {frontend::EmitCIR, OPT_emit_cir}, 2627 {frontend::EmitHTML, OPT_emit_html}, 2628 {frontend::EmitLLVM, OPT_emit_llvm}, 2629 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2630 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2631 {frontend::EmitObj, OPT_emit_obj}, 2632 {frontend::ExtractAPI, OPT_extract_api}, 2633 2634 {frontend::FixIt, OPT_fixit_EQ}, 2635 {frontend::FixIt, OPT_fixit}, 2636 2637 {frontend::GenerateModule, OPT_emit_module}, 2638 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2639 {frontend::GenerateReducedModuleInterface, 2640 OPT_emit_reduced_module_interface}, 2641 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2642 {frontend::GeneratePCH, OPT_emit_pch}, 2643 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2644 {frontend::InitOnly, OPT_init_only}, 2645 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2646 {frontend::ModuleFileInfo, OPT_module_file_info}, 2647 {frontend::VerifyPCH, OPT_verify_pch}, 2648 {frontend::PrintPreamble, OPT_print_preamble}, 2649 {frontend::PrintPreprocessedInput, OPT_E}, 2650 {frontend::TemplightDump, OPT_templight_dump}, 2651 {frontend::RewriteMacros, OPT_rewrite_macros}, 2652 {frontend::RewriteObjC, OPT_rewrite_objc}, 2653 {frontend::RewriteTest, OPT_rewrite_test}, 2654 {frontend::RunAnalysis, OPT_analyze}, 2655 {frontend::MigrateSource, OPT_migrate}, 2656 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2657 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2658 OPT_print_dependency_directives_minimized_source}, 2659 }; 2660 2661 return Table; 2662 } 2663 2664 /// Maps command line option to frontend action. 2665 static std::optional<frontend::ActionKind> 2666 getFrontendAction(OptSpecifier &Opt) { 2667 for (const auto &ActionOpt : getFrontendActionTable()) 2668 if (ActionOpt.second == Opt.getID()) 2669 return ActionOpt.first; 2670 2671 return std::nullopt; 2672 } 2673 2674 /// Maps frontend action to command line option. 2675 static std::optional<OptSpecifier> 2676 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2677 for (const auto &ActionOpt : getFrontendActionTable()) 2678 if (ActionOpt.first == ProgramAction) 2679 return OptSpecifier(ActionOpt.second); 2680 2681 return std::nullopt; 2682 } 2683 2684 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2685 ArgumentConsumer Consumer, bool IsHeader) { 2686 const FrontendOptions &FrontendOpts = Opts; 2687 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2688 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2689 #include "clang/Driver/Options.inc" 2690 #undef FRONTEND_OPTION_WITH_MARSHALLING 2691 2692 std::optional<OptSpecifier> ProgramActionOpt = 2693 getProgramActionOpt(Opts.ProgramAction); 2694 2695 // Generating a simple flag covers most frontend actions. 2696 std::function<void()> GenerateProgramAction = [&]() { 2697 GenerateArg(Consumer, *ProgramActionOpt); 2698 }; 2699 2700 if (!ProgramActionOpt) { 2701 // PluginAction is the only program action handled separately. 2702 assert(Opts.ProgramAction == frontend::PluginAction && 2703 "Frontend action without option."); 2704 GenerateProgramAction = [&]() { 2705 GenerateArg(Consumer, OPT_plugin, Opts.ActionName); 2706 }; 2707 } 2708 2709 // FIXME: Simplify the complex 'AST dump' command line. 2710 if (Opts.ProgramAction == frontend::ASTDump) { 2711 GenerateProgramAction = [&]() { 2712 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2713 // marshalling infrastructure. 2714 2715 if (Opts.ASTDumpFormat != ADOF_Default) { 2716 StringRef Format; 2717 switch (Opts.ASTDumpFormat) { 2718 case ADOF_Default: 2719 llvm_unreachable("Default AST dump format."); 2720 case ADOF_JSON: 2721 Format = "json"; 2722 break; 2723 } 2724 2725 if (Opts.ASTDumpAll) 2726 GenerateArg(Consumer, OPT_ast_dump_all_EQ, Format); 2727 if (Opts.ASTDumpDecls) 2728 GenerateArg(Consumer, OPT_ast_dump_EQ, Format); 2729 } else { 2730 if (Opts.ASTDumpAll) 2731 GenerateArg(Consumer, OPT_ast_dump_all); 2732 if (Opts.ASTDumpDecls) 2733 GenerateArg(Consumer, OPT_ast_dump); 2734 } 2735 }; 2736 } 2737 2738 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2739 GenerateProgramAction = [&]() { 2740 GenerateArg(Consumer, OPT_fixit_EQ, Opts.FixItSuffix); 2741 }; 2742 } 2743 2744 GenerateProgramAction(); 2745 2746 for (const auto &PluginArgs : Opts.PluginArgs) { 2747 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2748 for (const auto &PluginArg : PluginArgs.second) 2749 denormalizeString(Consumer, 2750 Opt.getPrefix() + Opt.getName() + PluginArgs.first, 2751 Opt.getKind(), 0, PluginArg); 2752 } 2753 2754 for (const auto &Ext : Opts.ModuleFileExtensions) 2755 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2756 GenerateArg(Consumer, OPT_ftest_module_file_extension_EQ, TestExt->str()); 2757 2758 if (!Opts.CodeCompletionAt.FileName.empty()) 2759 GenerateArg(Consumer, OPT_code_completion_at, 2760 Opts.CodeCompletionAt.ToString()); 2761 2762 for (const auto &Plugin : Opts.Plugins) 2763 GenerateArg(Consumer, OPT_load, Plugin); 2764 2765 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2766 2767 for (const auto &ModuleFile : Opts.ModuleFiles) 2768 GenerateArg(Consumer, OPT_fmodule_file, ModuleFile); 2769 2770 if (Opts.AuxTargetCPU) 2771 GenerateArg(Consumer, OPT_aux_target_cpu, *Opts.AuxTargetCPU); 2772 2773 if (Opts.AuxTargetFeatures) 2774 for (const auto &Feature : *Opts.AuxTargetFeatures) 2775 GenerateArg(Consumer, OPT_aux_target_feature, Feature); 2776 2777 { 2778 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2779 StringRef ModuleMap = 2780 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2781 StringRef HeaderUnit = ""; 2782 switch (Opts.DashX.getHeaderUnitKind()) { 2783 case InputKind::HeaderUnit_None: 2784 break; 2785 case InputKind::HeaderUnit_User: 2786 HeaderUnit = "-user"; 2787 break; 2788 case InputKind::HeaderUnit_System: 2789 HeaderUnit = "-system"; 2790 break; 2791 case InputKind::HeaderUnit_Abs: 2792 HeaderUnit = "-header-unit"; 2793 break; 2794 } 2795 StringRef Header = IsHeader ? "-header" : ""; 2796 2797 StringRef Lang; 2798 switch (Opts.DashX.getLanguage()) { 2799 case Language::C: 2800 Lang = "c"; 2801 break; 2802 case Language::OpenCL: 2803 Lang = "cl"; 2804 break; 2805 case Language::OpenCLCXX: 2806 Lang = "clcpp"; 2807 break; 2808 case Language::CUDA: 2809 Lang = "cuda"; 2810 break; 2811 case Language::HIP: 2812 Lang = "hip"; 2813 break; 2814 case Language::CXX: 2815 Lang = "c++"; 2816 break; 2817 case Language::ObjC: 2818 Lang = "objective-c"; 2819 break; 2820 case Language::ObjCXX: 2821 Lang = "objective-c++"; 2822 break; 2823 case Language::RenderScript: 2824 Lang = "renderscript"; 2825 break; 2826 case Language::Asm: 2827 Lang = "assembler-with-cpp"; 2828 break; 2829 case Language::Unknown: 2830 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2831 "Generating -x argument for unknown language (not precompiled)."); 2832 Lang = "ast"; 2833 break; 2834 case Language::LLVM_IR: 2835 Lang = "ir"; 2836 break; 2837 case Language::HLSL: 2838 Lang = "hlsl"; 2839 break; 2840 case Language::CIR: 2841 Lang = "cir"; 2842 break; 2843 } 2844 2845 GenerateArg(Consumer, OPT_x, 2846 Lang + HeaderUnit + Header + ModuleMap + Preprocessed); 2847 } 2848 2849 // OPT_INPUT has a unique class, generate it directly. 2850 for (const auto &Input : Opts.Inputs) 2851 Consumer(Input.getFile()); 2852 } 2853 2854 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2855 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2856 unsigned NumErrorsBefore = Diags.getNumErrors(); 2857 2858 FrontendOptions &FrontendOpts = Opts; 2859 2860 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2861 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2862 #include "clang/Driver/Options.inc" 2863 #undef FRONTEND_OPTION_WITH_MARSHALLING 2864 2865 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2866 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2867 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2868 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2869 assert(ProgramAction && "Option specifier not in Action_Group."); 2870 2871 if (ProgramAction == frontend::ASTDump && 2872 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2873 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2874 .CaseLower("default", ADOF_Default) 2875 .CaseLower("json", ADOF_JSON) 2876 .Default(std::numeric_limits<unsigned>::max()); 2877 2878 if (Val != std::numeric_limits<unsigned>::max()) 2879 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2880 else { 2881 Diags.Report(diag::err_drv_invalid_value) 2882 << A->getAsString(Args) << A->getValue(); 2883 Opts.ASTDumpFormat = ADOF_Default; 2884 } 2885 } 2886 2887 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2888 Opts.FixItSuffix = A->getValue(); 2889 2890 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2891 StringRef ArgStr = 2892 Args.hasArg(OPT_interface_stub_version_EQ) 2893 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2894 : "ifs-v1"; 2895 if (ArgStr == "experimental-yaml-elf-v1" || 2896 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2897 ArgStr == "experimental-tapi-elf-v1") { 2898 std::string ErrorMessage = 2899 "Invalid interface stub format: " + ArgStr.str() + 2900 " is deprecated."; 2901 Diags.Report(diag::err_drv_invalid_value) 2902 << "Must specify a valid interface stub format type, ie: " 2903 "-interface-stub-version=ifs-v1" 2904 << ErrorMessage; 2905 ProgramAction = frontend::ParseSyntaxOnly; 2906 } else if (!ArgStr.starts_with("ifs-")) { 2907 std::string ErrorMessage = 2908 "Invalid interface stub format: " + ArgStr.str() + "."; 2909 Diags.Report(diag::err_drv_invalid_value) 2910 << "Must specify a valid interface stub format type, ie: " 2911 "-interface-stub-version=ifs-v1" 2912 << ErrorMessage; 2913 ProgramAction = frontend::ParseSyntaxOnly; 2914 } 2915 } 2916 2917 Opts.ProgramAction = *ProgramAction; 2918 2919 // Catch common mistakes when multiple actions are specified for cc1 (e.g. 2920 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to 2921 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name 2922 // X ACTION), we suppress the error when the two actions are separated by 2923 // -main-file-name. 2924 // 2925 // As an exception, accept composable -ast-dump*. 2926 if (!A->getSpelling().starts_with("-ast-dump")) { 2927 const Arg *SavedAction = nullptr; 2928 for (const Arg *AA : 2929 Args.filtered(OPT_Action_Group, OPT_main_file_name)) { 2930 if (AA->getOption().matches(OPT_main_file_name)) { 2931 SavedAction = nullptr; 2932 } else if (!SavedAction) { 2933 SavedAction = AA; 2934 } else { 2935 if (!A->getOption().matches(OPT_ast_dump_EQ)) 2936 Diags.Report(diag::err_fe_invalid_multiple_actions) 2937 << SavedAction->getSpelling() << A->getSpelling(); 2938 break; 2939 } 2940 } 2941 } 2942 } 2943 2944 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2945 Opts.Plugins.emplace_back(A->getValue(0)); 2946 Opts.ProgramAction = frontend::PluginAction; 2947 Opts.ActionName = A->getValue(); 2948 } 2949 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2950 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2951 2952 for (const std::string &Arg : 2953 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2954 std::string BlockName; 2955 unsigned MajorVersion; 2956 unsigned MinorVersion; 2957 bool Hashed; 2958 std::string UserInfo; 2959 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2960 MinorVersion, Hashed, UserInfo)) { 2961 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2962 2963 continue; 2964 } 2965 2966 // Add the testing module file extension. 2967 Opts.ModuleFileExtensions.push_back( 2968 std::make_shared<TestModuleFileExtension>( 2969 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2970 } 2971 2972 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2973 Opts.CodeCompletionAt = 2974 ParsedSourceLocation::FromString(A->getValue()); 2975 if (Opts.CodeCompletionAt.FileName.empty()) 2976 Diags.Report(diag::err_drv_invalid_value) 2977 << A->getAsString(Args) << A->getValue(); 2978 } 2979 2980 Opts.Plugins = Args.getAllArgValues(OPT_load); 2981 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2982 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2983 // Only the -fmodule-file=<file> form. 2984 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2985 StringRef Val = A->getValue(); 2986 if (!Val.contains('=')) 2987 Opts.ModuleFiles.push_back(std::string(Val)); 2988 } 2989 2990 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2991 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2992 << "-emit-module"; 2993 if (Args.hasArg(OPT_fclangir) || Args.hasArg(OPT_emit_cir)) 2994 Opts.UseClangIRPipeline = true; 2995 2996 if (Args.hasArg(OPT_aux_target_cpu)) 2997 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2998 if (Args.hasArg(OPT_aux_target_feature)) 2999 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 3000 3001 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 3002 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 3003 Diags.Report(diag::err_drv_argument_not_allowed_with) 3004 << "ARC migration" << "ObjC migration"; 3005 } 3006 3007 InputKind DashX(Language::Unknown); 3008 if (const Arg *A = Args.getLastArg(OPT_x)) { 3009 StringRef XValue = A->getValue(); 3010 3011 // Parse suffixes: 3012 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 3013 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 3014 bool Preprocessed = XValue.consume_back("-cpp-output"); 3015 bool ModuleMap = XValue.consume_back("-module-map"); 3016 // Detect and consume the header indicator. 3017 bool IsHeader = 3018 XValue != "precompiled-header" && XValue.consume_back("-header"); 3019 3020 // If we have c++-{user,system}-header, that indicates a header unit input 3021 // likewise, if the user put -fmodule-header together with a header with an 3022 // absolute path (header-unit-header). 3023 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 3024 if (IsHeader || Preprocessed) { 3025 if (XValue.consume_back("-header-unit")) 3026 HUK = InputKind::HeaderUnit_Abs; 3027 else if (XValue.consume_back("-system")) 3028 HUK = InputKind::HeaderUnit_System; 3029 else if (XValue.consume_back("-user")) 3030 HUK = InputKind::HeaderUnit_User; 3031 } 3032 3033 // The value set by this processing is an un-preprocessed source which is 3034 // not intended to be a module map or header unit. 3035 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 3036 HUK == InputKind::HeaderUnit_None; 3037 3038 // Principal languages. 3039 DashX = llvm::StringSwitch<InputKind>(XValue) 3040 .Case("c", Language::C) 3041 .Case("cl", Language::OpenCL) 3042 .Case("clcpp", Language::OpenCLCXX) 3043 .Case("cuda", Language::CUDA) 3044 .Case("hip", Language::HIP) 3045 .Case("c++", Language::CXX) 3046 .Case("objective-c", Language::ObjC) 3047 .Case("objective-c++", Language::ObjCXX) 3048 .Case("renderscript", Language::RenderScript) 3049 .Case("hlsl", Language::HLSL) 3050 .Default(Language::Unknown); 3051 3052 // "objc[++]-cpp-output" is an acceptable synonym for 3053 // "objective-c[++]-cpp-output". 3054 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 3055 HUK == InputKind::HeaderUnit_None) 3056 DashX = llvm::StringSwitch<InputKind>(XValue) 3057 .Case("objc", Language::ObjC) 3058 .Case("objc++", Language::ObjCXX) 3059 .Default(Language::Unknown); 3060 3061 // Some special cases cannot be combined with suffixes. 3062 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 3063 HUK == InputKind::HeaderUnit_None) 3064 DashX = llvm::StringSwitch<InputKind>(XValue) 3065 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 3066 .Case("assembler-with-cpp", Language::Asm) 3067 .Cases("ast", "pcm", "precompiled-header", 3068 InputKind(Language::Unknown, InputKind::Precompiled)) 3069 .Case("ir", Language::LLVM_IR) 3070 .Case("cir", Language::CIR) 3071 .Default(Language::Unknown); 3072 3073 if (DashX.isUnknown()) 3074 Diags.Report(diag::err_drv_invalid_value) 3075 << A->getAsString(Args) << A->getValue(); 3076 3077 if (Preprocessed) 3078 DashX = DashX.getPreprocessed(); 3079 // A regular header is considered mutually exclusive with a header unit. 3080 if (HUK != InputKind::HeaderUnit_None) { 3081 DashX = DashX.withHeaderUnit(HUK); 3082 IsHeaderFile = true; 3083 } else if (IsHeaderFile) 3084 DashX = DashX.getHeader(); 3085 if (ModuleMap) 3086 DashX = DashX.withFormat(InputKind::ModuleMap); 3087 } 3088 3089 // '-' is the default input if none is given. 3090 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 3091 Opts.Inputs.clear(); 3092 if (Inputs.empty()) 3093 Inputs.push_back("-"); 3094 3095 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 3096 Inputs.size() > 1) 3097 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 3098 3099 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 3100 InputKind IK = DashX; 3101 if (IK.isUnknown()) { 3102 IK = FrontendOptions::getInputKindForExtension( 3103 StringRef(Inputs[i]).rsplit('.').second); 3104 // FIXME: Warn on this? 3105 if (IK.isUnknown()) 3106 IK = Language::C; 3107 // FIXME: Remove this hack. 3108 if (i == 0) 3109 DashX = IK; 3110 } 3111 3112 bool IsSystem = false; 3113 3114 // The -emit-module action implicitly takes a module map. 3115 if (Opts.ProgramAction == frontend::GenerateModule && 3116 IK.getFormat() == InputKind::Source) { 3117 IK = IK.withFormat(InputKind::ModuleMap); 3118 IsSystem = Opts.IsSystemModule; 3119 } 3120 3121 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 3122 } 3123 3124 Opts.DashX = DashX; 3125 3126 return Diags.getNumErrors() == NumErrorsBefore; 3127 } 3128 3129 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 3130 void *MainAddr) { 3131 std::string ClangExecutable = 3132 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 3133 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 3134 } 3135 3136 static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts, 3137 ArgumentConsumer Consumer) { 3138 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 3139 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3140 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3141 #include "clang/Driver/Options.inc" 3142 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3143 3144 if (Opts.UseLibcxx) 3145 GenerateArg(Consumer, OPT_stdlib_EQ, "libc++"); 3146 3147 if (!Opts.ModuleCachePath.empty()) 3148 GenerateArg(Consumer, OPT_fmodules_cache_path, Opts.ModuleCachePath); 3149 3150 for (const auto &File : Opts.PrebuiltModuleFiles) 3151 GenerateArg(Consumer, OPT_fmodule_file, File.first + "=" + File.second); 3152 3153 for (const auto &Path : Opts.PrebuiltModulePaths) 3154 GenerateArg(Consumer, OPT_fprebuilt_module_path, Path); 3155 3156 for (const auto &Macro : Opts.ModulesIgnoreMacros) 3157 GenerateArg(Consumer, OPT_fmodules_ignore_macro, Macro.val()); 3158 3159 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3160 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3161 std::optional<bool> IsFramework, 3162 std::optional<bool> IgnoreSysRoot) { 3163 return llvm::is_contained(Groups, Entry.Group) && 3164 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3165 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3166 }; 3167 3168 auto It = Opts.UserEntries.begin(); 3169 auto End = Opts.UserEntries.end(); 3170 3171 // Add -I..., -F..., and -index-header-map options in order. 3172 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3173 std::nullopt, true); 3174 ++It) { 3175 OptSpecifier Opt = [It, Matches]() { 3176 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3177 return OPT_F; 3178 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3179 return OPT_I; 3180 if (Matches(*It, frontend::Angled, true, true)) 3181 return OPT_F; 3182 if (Matches(*It, frontend::Angled, false, true)) 3183 return OPT_I; 3184 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3185 }(); 3186 3187 if (It->Group == frontend::IndexHeaderMap) 3188 GenerateArg(Consumer, OPT_index_header_map); 3189 GenerateArg(Consumer, Opt, It->Path); 3190 }; 3191 3192 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3193 // have already been generated as "-I[xx]yy". If that's the case, their 3194 // position on command line was such that this has no semantic impact on 3195 // include paths. 3196 for (; It < End && 3197 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3198 ++It) { 3199 OptSpecifier Opt = 3200 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3201 GenerateArg(Consumer, Opt, It->Path); 3202 } 3203 3204 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3205 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3206 // command line was such that this has no semantic impact on include paths. 3207 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3208 GenerateArg(Consumer, OPT_idirafter, It->Path); 3209 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3210 GenerateArg(Consumer, OPT_iquote, It->Path); 3211 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3212 ++It) 3213 GenerateArg(Consumer, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3214 It->Path); 3215 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3216 GenerateArg(Consumer, OPT_iframework, It->Path); 3217 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3218 GenerateArg(Consumer, OPT_iframeworkwithsysroot, It->Path); 3219 3220 // Add the paths for the various language specific isystem flags. 3221 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3222 GenerateArg(Consumer, OPT_c_isystem, It->Path); 3223 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3224 GenerateArg(Consumer, OPT_cxx_isystem, It->Path); 3225 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3226 GenerateArg(Consumer, OPT_objc_isystem, It->Path); 3227 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3228 GenerateArg(Consumer, OPT_objcxx_isystem, It->Path); 3229 3230 // Add the internal paths from a driver that detects standard include paths. 3231 // Note: Some paths that came from "-internal-isystem" arguments may have 3232 // already been generated as "-isystem". If that's the case, their position on 3233 // command line was such that this has no semantic impact on include paths. 3234 for (; It < End && 3235 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3236 ++It) { 3237 OptSpecifier Opt = It->Group == frontend::System 3238 ? OPT_internal_isystem 3239 : OPT_internal_externc_isystem; 3240 GenerateArg(Consumer, Opt, It->Path); 3241 } 3242 3243 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3244 3245 // Add the path prefixes which are implicitly treated as being system headers. 3246 for (const auto &P : Opts.SystemHeaderPrefixes) { 3247 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3248 : OPT_no_system_header_prefix; 3249 GenerateArg(Consumer, Opt, P.Prefix); 3250 } 3251 3252 for (const std::string &F : Opts.VFSOverlayFiles) 3253 GenerateArg(Consumer, OPT_ivfsoverlay, F); 3254 } 3255 3256 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3257 DiagnosticsEngine &Diags, 3258 const std::string &WorkingDir) { 3259 unsigned NumErrorsBefore = Diags.getNumErrors(); 3260 3261 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3262 3263 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3264 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3265 #include "clang/Driver/Options.inc" 3266 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3267 3268 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3269 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3270 3271 // Canonicalize -fmodules-cache-path before storing it. 3272 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3273 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3274 if (WorkingDir.empty()) 3275 llvm::sys::fs::make_absolute(P); 3276 else 3277 llvm::sys::fs::make_absolute(WorkingDir, P); 3278 } 3279 llvm::sys::path::remove_dots(P); 3280 Opts.ModuleCachePath = std::string(P); 3281 3282 // Only the -fmodule-file=<name>=<file> form. 3283 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3284 StringRef Val = A->getValue(); 3285 if (Val.contains('=')) { 3286 auto Split = Val.split('='); 3287 Opts.PrebuiltModuleFiles.insert_or_assign( 3288 std::string(Split.first), std::string(Split.second)); 3289 } 3290 } 3291 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3292 Opts.AddPrebuiltModulePath(A->getValue()); 3293 3294 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3295 StringRef MacroDef = A->getValue(); 3296 Opts.ModulesIgnoreMacros.insert( 3297 llvm::CachedHashString(MacroDef.split('=').first)); 3298 } 3299 3300 // Add -I..., -F..., and -index-header-map options in order. 3301 bool IsIndexHeaderMap = false; 3302 bool IsSysrootSpecified = 3303 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3304 3305 // Expand a leading `=` to the sysroot if one was passed (and it's not a 3306 // framework flag). 3307 auto PrefixHeaderPath = [IsSysrootSpecified, 3308 &Opts](const llvm::opt::Arg *A, 3309 bool IsFramework = false) -> std::string { 3310 assert(A->getNumValues() && "Unexpected empty search path flag!"); 3311 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3312 SmallString<32> Buffer; 3313 llvm::sys::path::append(Buffer, Opts.Sysroot, 3314 llvm::StringRef(A->getValue()).substr(1)); 3315 return std::string(Buffer); 3316 } 3317 return A->getValue(); 3318 }; 3319 3320 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3321 if (A->getOption().matches(OPT_index_header_map)) { 3322 // -index-header-map applies to the next -I or -F. 3323 IsIndexHeaderMap = true; 3324 continue; 3325 } 3326 3327 frontend::IncludeDirGroup Group = 3328 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3329 3330 bool IsFramework = A->getOption().matches(OPT_F); 3331 Opts.AddPath(PrefixHeaderPath(A, IsFramework), Group, IsFramework, 3332 /*IgnoreSysroot*/ true); 3333 IsIndexHeaderMap = false; 3334 } 3335 3336 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3337 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3338 for (const auto *A : 3339 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3340 if (A->getOption().matches(OPT_iprefix)) 3341 Prefix = A->getValue(); 3342 else if (A->getOption().matches(OPT_iwithprefix)) 3343 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3344 else 3345 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3346 } 3347 3348 for (const auto *A : Args.filtered(OPT_idirafter)) 3349 Opts.AddPath(PrefixHeaderPath(A), frontend::After, false, true); 3350 for (const auto *A : Args.filtered(OPT_iquote)) 3351 Opts.AddPath(PrefixHeaderPath(A), frontend::Quoted, false, true); 3352 3353 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) { 3354 if (A->getOption().matches(OPT_iwithsysroot)) { 3355 Opts.AddPath(A->getValue(), frontend::System, false, 3356 /*IgnoreSysRoot=*/false); 3357 continue; 3358 } 3359 Opts.AddPath(PrefixHeaderPath(A), frontend::System, false, true); 3360 } 3361 for (const auto *A : Args.filtered(OPT_iframework)) 3362 Opts.AddPath(A->getValue(), frontend::System, true, true); 3363 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3364 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3365 /*IgnoreSysRoot=*/false); 3366 3367 // Add the paths for the various language specific isystem flags. 3368 for (const auto *A : Args.filtered(OPT_c_isystem)) 3369 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3370 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3371 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3372 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3373 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3374 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3375 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3376 3377 // Add the internal paths from a driver that detects standard include paths. 3378 for (const auto *A : 3379 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3380 frontend::IncludeDirGroup Group = frontend::System; 3381 if (A->getOption().matches(OPT_internal_externc_isystem)) 3382 Group = frontend::ExternCSystem; 3383 Opts.AddPath(A->getValue(), Group, false, true); 3384 } 3385 3386 // Add the path prefixes which are implicitly treated as being system headers. 3387 for (const auto *A : 3388 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3389 Opts.AddSystemHeaderPrefix( 3390 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3391 3392 for (const auto *A : Args.filtered(OPT_ivfsoverlay, OPT_vfsoverlay)) 3393 Opts.AddVFSOverlayFile(A->getValue()); 3394 3395 return Diags.getNumErrors() == NumErrorsBefore; 3396 } 3397 3398 static void GenerateAPINotesArgs(const APINotesOptions &Opts, 3399 ArgumentConsumer Consumer) { 3400 if (!Opts.SwiftVersion.empty()) 3401 GenerateArg(Consumer, OPT_fapinotes_swift_version, 3402 Opts.SwiftVersion.getAsString()); 3403 3404 for (const auto &Path : Opts.ModuleSearchPaths) 3405 GenerateArg(Consumer, OPT_iapinotes_modules, Path); 3406 } 3407 3408 static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args, 3409 DiagnosticsEngine &diags) { 3410 if (const Arg *A = Args.getLastArg(OPT_fapinotes_swift_version)) { 3411 if (Opts.SwiftVersion.tryParse(A->getValue())) 3412 diags.Report(diag::err_drv_invalid_value) 3413 << A->getAsString(Args) << A->getValue(); 3414 } 3415 for (const Arg *A : Args.filtered(OPT_iapinotes_modules)) 3416 Opts.ModuleSearchPaths.push_back(A->getValue()); 3417 } 3418 3419 static void GeneratePointerAuthArgs(const LangOptions &Opts, 3420 ArgumentConsumer Consumer) { 3421 if (Opts.PointerAuthIntrinsics) 3422 GenerateArg(Consumer, OPT_fptrauth_intrinsics); 3423 if (Opts.PointerAuthCalls) 3424 GenerateArg(Consumer, OPT_fptrauth_calls); 3425 if (Opts.PointerAuthReturns) 3426 GenerateArg(Consumer, OPT_fptrauth_returns); 3427 if (Opts.PointerAuthIndirectGotos) 3428 GenerateArg(Consumer, OPT_fptrauth_indirect_gotos); 3429 if (Opts.PointerAuthAuthTraps) 3430 GenerateArg(Consumer, OPT_fptrauth_auth_traps); 3431 if (Opts.PointerAuthVTPtrAddressDiscrimination) 3432 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_address_discrimination); 3433 if (Opts.PointerAuthVTPtrTypeDiscrimination) 3434 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_type_discrimination); 3435 if (Opts.PointerAuthTypeInfoVTPtrDiscrimination) 3436 GenerateArg(Consumer, OPT_fptrauth_type_info_vtable_pointer_discrimination); 3437 if (Opts.PointerAuthFunctionTypeDiscrimination) 3438 GenerateArg(Consumer, OPT_fptrauth_function_pointer_type_discrimination); 3439 if (Opts.PointerAuthInitFini) 3440 GenerateArg(Consumer, OPT_fptrauth_init_fini); 3441 if (Opts.PointerAuthInitFiniAddressDiscrimination) 3442 GenerateArg(Consumer, OPT_fptrauth_init_fini_address_discrimination); 3443 } 3444 3445 static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args, 3446 DiagnosticsEngine &Diags) { 3447 Opts.PointerAuthIntrinsics = Args.hasArg(OPT_fptrauth_intrinsics); 3448 Opts.PointerAuthCalls = Args.hasArg(OPT_fptrauth_calls); 3449 Opts.PointerAuthReturns = Args.hasArg(OPT_fptrauth_returns); 3450 Opts.PointerAuthIndirectGotos = Args.hasArg(OPT_fptrauth_indirect_gotos); 3451 Opts.PointerAuthAuthTraps = Args.hasArg(OPT_fptrauth_auth_traps); 3452 Opts.PointerAuthVTPtrAddressDiscrimination = 3453 Args.hasArg(OPT_fptrauth_vtable_pointer_address_discrimination); 3454 Opts.PointerAuthVTPtrTypeDiscrimination = 3455 Args.hasArg(OPT_fptrauth_vtable_pointer_type_discrimination); 3456 Opts.PointerAuthTypeInfoVTPtrDiscrimination = 3457 Args.hasArg(OPT_fptrauth_type_info_vtable_pointer_discrimination); 3458 Opts.PointerAuthFunctionTypeDiscrimination = 3459 Args.hasArg(OPT_fptrauth_function_pointer_type_discrimination); 3460 Opts.PointerAuthInitFini = Args.hasArg(OPT_fptrauth_init_fini); 3461 Opts.PointerAuthInitFiniAddressDiscrimination = 3462 Args.hasArg(OPT_fptrauth_init_fini_address_discrimination); 3463 } 3464 3465 /// Check if input file kind and language standard are compatible. 3466 static bool IsInputCompatibleWithStandard(InputKind IK, 3467 const LangStandard &S) { 3468 switch (IK.getLanguage()) { 3469 case Language::Unknown: 3470 case Language::LLVM_IR: 3471 case Language::CIR: 3472 llvm_unreachable("should not parse language flags for this input"); 3473 3474 case Language::C: 3475 case Language::ObjC: 3476 case Language::RenderScript: 3477 return S.getLanguage() == Language::C; 3478 3479 case Language::OpenCL: 3480 return S.getLanguage() == Language::OpenCL || 3481 S.getLanguage() == Language::OpenCLCXX; 3482 3483 case Language::OpenCLCXX: 3484 return S.getLanguage() == Language::OpenCLCXX; 3485 3486 case Language::CXX: 3487 case Language::ObjCXX: 3488 return S.getLanguage() == Language::CXX; 3489 3490 case Language::CUDA: 3491 // FIXME: What -std= values should be permitted for CUDA compilations? 3492 return S.getLanguage() == Language::CUDA || 3493 S.getLanguage() == Language::CXX; 3494 3495 case Language::HIP: 3496 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3497 3498 case Language::Asm: 3499 // Accept (and ignore) all -std= values. 3500 // FIXME: The -std= value is not ignored; it affects the tokenization 3501 // and preprocessing rules if we're preprocessing this asm input. 3502 return true; 3503 3504 case Language::HLSL: 3505 return S.getLanguage() == Language::HLSL; 3506 } 3507 3508 llvm_unreachable("unexpected input language"); 3509 } 3510 3511 /// Get language name for given input kind. 3512 static StringRef GetInputKindName(InputKind IK) { 3513 switch (IK.getLanguage()) { 3514 case Language::C: 3515 return "C"; 3516 case Language::ObjC: 3517 return "Objective-C"; 3518 case Language::CXX: 3519 return "C++"; 3520 case Language::ObjCXX: 3521 return "Objective-C++"; 3522 case Language::OpenCL: 3523 return "OpenCL"; 3524 case Language::OpenCLCXX: 3525 return "C++ for OpenCL"; 3526 case Language::CUDA: 3527 return "CUDA"; 3528 case Language::RenderScript: 3529 return "RenderScript"; 3530 case Language::HIP: 3531 return "HIP"; 3532 3533 case Language::Asm: 3534 return "Asm"; 3535 case Language::LLVM_IR: 3536 return "LLVM IR"; 3537 case Language::CIR: 3538 return "Clang IR"; 3539 3540 case Language::HLSL: 3541 return "HLSL"; 3542 3543 case Language::Unknown: 3544 break; 3545 } 3546 llvm_unreachable("unknown input language"); 3547 } 3548 3549 void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts, 3550 ArgumentConsumer Consumer, 3551 const llvm::Triple &T, 3552 InputKind IK) { 3553 if (IK.getFormat() == InputKind::Precompiled || 3554 IK.getLanguage() == Language::LLVM_IR || 3555 IK.getLanguage() == Language::CIR) { 3556 if (Opts.ObjCAutoRefCount) 3557 GenerateArg(Consumer, OPT_fobjc_arc); 3558 if (Opts.PICLevel != 0) 3559 GenerateArg(Consumer, OPT_pic_level, Twine(Opts.PICLevel)); 3560 if (Opts.PIE) 3561 GenerateArg(Consumer, OPT_pic_is_pie); 3562 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3563 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3564 3565 return; 3566 } 3567 3568 OptSpecifier StdOpt; 3569 switch (Opts.LangStd) { 3570 case LangStandard::lang_opencl10: 3571 case LangStandard::lang_opencl11: 3572 case LangStandard::lang_opencl12: 3573 case LangStandard::lang_opencl20: 3574 case LangStandard::lang_opencl30: 3575 case LangStandard::lang_openclcpp10: 3576 case LangStandard::lang_openclcpp2021: 3577 StdOpt = OPT_cl_std_EQ; 3578 break; 3579 default: 3580 StdOpt = OPT_std_EQ; 3581 break; 3582 } 3583 3584 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3585 GenerateArg(Consumer, StdOpt, LangStandard.getName()); 3586 3587 if (Opts.IncludeDefaultHeader) 3588 GenerateArg(Consumer, OPT_finclude_default_header); 3589 if (Opts.DeclareOpenCLBuiltins) 3590 GenerateArg(Consumer, OPT_fdeclare_opencl_builtins); 3591 3592 const LangOptions *LangOpts = &Opts; 3593 3594 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3595 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3596 #include "clang/Driver/Options.inc" 3597 #undef LANG_OPTION_WITH_MARSHALLING 3598 3599 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3600 3601 if (Opts.ObjC) { 3602 GenerateArg(Consumer, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString()); 3603 3604 if (Opts.GC == LangOptions::GCOnly) 3605 GenerateArg(Consumer, OPT_fobjc_gc_only); 3606 else if (Opts.GC == LangOptions::HybridGC) 3607 GenerateArg(Consumer, OPT_fobjc_gc); 3608 else if (Opts.ObjCAutoRefCount == 1) 3609 GenerateArg(Consumer, OPT_fobjc_arc); 3610 3611 if (Opts.ObjCWeakRuntime) 3612 GenerateArg(Consumer, OPT_fobjc_runtime_has_weak); 3613 3614 if (Opts.ObjCWeak) 3615 GenerateArg(Consumer, OPT_fobjc_weak); 3616 3617 if (Opts.ObjCSubscriptingLegacyRuntime) 3618 GenerateArg(Consumer, OPT_fobjc_subscripting_legacy_runtime); 3619 } 3620 3621 if (Opts.GNUCVersion != 0) { 3622 unsigned Major = Opts.GNUCVersion / 100 / 100; 3623 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3624 unsigned Patch = Opts.GNUCVersion % 100; 3625 GenerateArg(Consumer, OPT_fgnuc_version_EQ, 3626 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch)); 3627 } 3628 3629 if (Opts.IgnoreXCOFFVisibility) 3630 GenerateArg(Consumer, OPT_mignore_xcoff_visibility); 3631 3632 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3633 GenerateArg(Consumer, OPT_ftrapv); 3634 GenerateArg(Consumer, OPT_ftrapv_handler, Opts.OverflowHandler); 3635 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3636 GenerateArg(Consumer, OPT_fwrapv); 3637 } 3638 3639 if (Opts.MSCompatibilityVersion != 0) { 3640 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3641 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3642 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3643 GenerateArg(Consumer, OPT_fms_compatibility_version, 3644 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor)); 3645 } 3646 3647 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 3648 T.isOSzOS()) { 3649 if (!Opts.Trigraphs) 3650 GenerateArg(Consumer, OPT_fno_trigraphs); 3651 } else { 3652 if (Opts.Trigraphs) 3653 GenerateArg(Consumer, OPT_ftrigraphs); 3654 } 3655 3656 if (T.isOSzOS() && !Opts.ZOSExt) 3657 GenerateArg(Consumer, OPT_fno_zos_extensions); 3658 else if (Opts.ZOSExt) 3659 GenerateArg(Consumer, OPT_fzos_extensions); 3660 3661 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3662 GenerateArg(Consumer, OPT_fblocks); 3663 3664 if (Opts.ConvergentFunctions && 3665 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice || 3666 Opts.HLSL)) 3667 GenerateArg(Consumer, OPT_fconvergent_functions); 3668 3669 if (Opts.NoBuiltin && !Opts.Freestanding) 3670 GenerateArg(Consumer, OPT_fno_builtin); 3671 3672 if (!Opts.NoBuiltin) 3673 for (const auto &Func : Opts.NoBuiltinFuncs) 3674 GenerateArg(Consumer, OPT_fno_builtin_, Func); 3675 3676 if (Opts.LongDoubleSize == 128) 3677 GenerateArg(Consumer, OPT_mlong_double_128); 3678 else if (Opts.LongDoubleSize == 64) 3679 GenerateArg(Consumer, OPT_mlong_double_64); 3680 else if (Opts.LongDoubleSize == 80) 3681 GenerateArg(Consumer, OPT_mlong_double_80); 3682 3683 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3684 3685 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3686 // '-fopenmp-targets='. 3687 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3688 GenerateArg(Consumer, OPT_fopenmp); 3689 3690 if (Opts.OpenMP != 51) 3691 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3692 3693 if (!Opts.OpenMPUseTLS) 3694 GenerateArg(Consumer, OPT_fnoopenmp_use_tls); 3695 3696 if (Opts.OpenMPIsTargetDevice) 3697 GenerateArg(Consumer, OPT_fopenmp_is_target_device); 3698 3699 if (Opts.OpenMPIRBuilder) 3700 GenerateArg(Consumer, OPT_fopenmp_enable_irbuilder); 3701 } 3702 3703 if (Opts.OpenMPSimd) { 3704 GenerateArg(Consumer, OPT_fopenmp_simd); 3705 3706 if (Opts.OpenMP != 51) 3707 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3708 } 3709 3710 if (Opts.OpenMPThreadSubscription) 3711 GenerateArg(Consumer, OPT_fopenmp_assume_threads_oversubscription); 3712 3713 if (Opts.OpenMPTeamSubscription) 3714 GenerateArg(Consumer, OPT_fopenmp_assume_teams_oversubscription); 3715 3716 if (Opts.OpenMPTargetDebug != 0) 3717 GenerateArg(Consumer, OPT_fopenmp_target_debug_EQ, 3718 Twine(Opts.OpenMPTargetDebug)); 3719 3720 if (Opts.OpenMPCUDANumSMs != 0) 3721 GenerateArg(Consumer, OPT_fopenmp_cuda_number_of_sm_EQ, 3722 Twine(Opts.OpenMPCUDANumSMs)); 3723 3724 if (Opts.OpenMPCUDABlocksPerSM != 0) 3725 GenerateArg(Consumer, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3726 Twine(Opts.OpenMPCUDABlocksPerSM)); 3727 3728 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3729 GenerateArg(Consumer, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3730 Twine(Opts.OpenMPCUDAReductionBufNum)); 3731 3732 if (!Opts.OMPTargetTriples.empty()) { 3733 std::string Targets; 3734 llvm::raw_string_ostream OS(Targets); 3735 llvm::interleave( 3736 Opts.OMPTargetTriples, OS, 3737 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3738 GenerateArg(Consumer, OPT_fopenmp_targets_EQ, OS.str()); 3739 } 3740 3741 if (!Opts.OMPHostIRFile.empty()) 3742 GenerateArg(Consumer, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile); 3743 3744 if (Opts.OpenMPCUDAMode) 3745 GenerateArg(Consumer, OPT_fopenmp_cuda_mode); 3746 3747 if (Opts.OpenACC) { 3748 GenerateArg(Consumer, OPT_fopenacc); 3749 if (!Opts.OpenACCMacroOverride.empty()) 3750 GenerateArg(Consumer, OPT_openacc_macro_override, 3751 Opts.OpenACCMacroOverride); 3752 } 3753 3754 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3755 // generated from CodeGenOptions. 3756 3757 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3758 GenerateArg(Consumer, OPT_ffp_contract, "fast"); 3759 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3760 GenerateArg(Consumer, OPT_ffp_contract, "on"); 3761 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3762 GenerateArg(Consumer, OPT_ffp_contract, "off"); 3763 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3764 GenerateArg(Consumer, OPT_ffp_contract, "fast-honor-pragmas"); 3765 3766 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3767 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3768 3769 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3770 for (const std::string &F : Opts.NoSanitizeFiles) 3771 GenerateArg(Consumer, OPT_fsanitize_ignorelist_EQ, F); 3772 3773 switch (Opts.getClangABICompat()) { 3774 case LangOptions::ClangABI::Ver3_8: 3775 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "3.8"); 3776 break; 3777 case LangOptions::ClangABI::Ver4: 3778 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "4.0"); 3779 break; 3780 case LangOptions::ClangABI::Ver6: 3781 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "6.0"); 3782 break; 3783 case LangOptions::ClangABI::Ver7: 3784 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "7.0"); 3785 break; 3786 case LangOptions::ClangABI::Ver9: 3787 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "9.0"); 3788 break; 3789 case LangOptions::ClangABI::Ver11: 3790 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "11.0"); 3791 break; 3792 case LangOptions::ClangABI::Ver12: 3793 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "12.0"); 3794 break; 3795 case LangOptions::ClangABI::Ver14: 3796 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "14.0"); 3797 break; 3798 case LangOptions::ClangABI::Ver15: 3799 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "15.0"); 3800 break; 3801 case LangOptions::ClangABI::Ver17: 3802 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "17.0"); 3803 break; 3804 case LangOptions::ClangABI::Ver18: 3805 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "18.0"); 3806 break; 3807 case LangOptions::ClangABI::Latest: 3808 break; 3809 } 3810 3811 if (Opts.getSignReturnAddressScope() == 3812 LangOptions::SignReturnAddressScopeKind::All) 3813 GenerateArg(Consumer, OPT_msign_return_address_EQ, "all"); 3814 else if (Opts.getSignReturnAddressScope() == 3815 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3816 GenerateArg(Consumer, OPT_msign_return_address_EQ, "non-leaf"); 3817 3818 if (Opts.getSignReturnAddressKey() == 3819 LangOptions::SignReturnAddressKeyKind::BKey) 3820 GenerateArg(Consumer, OPT_msign_return_address_key_EQ, "b_key"); 3821 3822 if (Opts.CXXABI) 3823 GenerateArg(Consumer, OPT_fcxx_abi_EQ, 3824 TargetCXXABI::getSpelling(*Opts.CXXABI)); 3825 3826 if (Opts.RelativeCXXABIVTables) 3827 GenerateArg(Consumer, OPT_fexperimental_relative_cxx_abi_vtables); 3828 else 3829 GenerateArg(Consumer, OPT_fno_experimental_relative_cxx_abi_vtables); 3830 3831 if (Opts.UseTargetPathSeparator) 3832 GenerateArg(Consumer, OPT_ffile_reproducible); 3833 else 3834 GenerateArg(Consumer, OPT_fno_file_reproducible); 3835 3836 for (const auto &MP : Opts.MacroPrefixMap) 3837 GenerateArg(Consumer, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second); 3838 3839 if (!Opts.RandstructSeed.empty()) 3840 GenerateArg(Consumer, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed); 3841 } 3842 3843 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3844 InputKind IK, const llvm::Triple &T, 3845 std::vector<std::string> &Includes, 3846 DiagnosticsEngine &Diags) { 3847 unsigned NumErrorsBefore = Diags.getNumErrors(); 3848 3849 if (IK.getFormat() == InputKind::Precompiled || 3850 IK.getLanguage() == Language::LLVM_IR || 3851 IK.getLanguage() == Language::CIR) { 3852 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3853 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3854 // what the input type is. 3855 if (Args.hasArg(OPT_fobjc_arc)) 3856 Opts.ObjCAutoRefCount = 1; 3857 // PICLevel and PIELevel are needed during code generation and this should 3858 // be set regardless of the input type. 3859 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3860 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3861 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3862 Diags, Opts.Sanitize); 3863 3864 return Diags.getNumErrors() == NumErrorsBefore; 3865 } 3866 3867 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3868 // FIXME: Should we really be parsing this for an Language::Asm input? 3869 3870 // FIXME: Cleanup per-file based stuff. 3871 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3872 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3873 LangStd = LangStandard::getLangKind(A->getValue()); 3874 if (LangStd == LangStandard::lang_unspecified) { 3875 Diags.Report(diag::err_drv_invalid_value) 3876 << A->getAsString(Args) << A->getValue(); 3877 // Report supported standards with short description. 3878 for (unsigned KindValue = 0; 3879 KindValue != LangStandard::lang_unspecified; 3880 ++KindValue) { 3881 const LangStandard &Std = LangStandard::getLangStandardForKind( 3882 static_cast<LangStandard::Kind>(KindValue)); 3883 if (IsInputCompatibleWithStandard(IK, Std)) { 3884 auto Diag = Diags.Report(diag::note_drv_use_standard); 3885 Diag << Std.getName() << Std.getDescription(); 3886 unsigned NumAliases = 0; 3887 #define LANGSTANDARD(id, name, lang, desc, features) 3888 #define LANGSTANDARD_ALIAS(id, alias) \ 3889 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3890 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3891 #include "clang/Basic/LangStandards.def" 3892 Diag << NumAliases; 3893 #define LANGSTANDARD(id, name, lang, desc, features) 3894 #define LANGSTANDARD_ALIAS(id, alias) \ 3895 if (KindValue == LangStandard::lang_##id) Diag << alias; 3896 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3897 #include "clang/Basic/LangStandards.def" 3898 } 3899 } 3900 } else { 3901 // Valid standard, check to make sure language and standard are 3902 // compatible. 3903 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3904 if (!IsInputCompatibleWithStandard(IK, Std)) { 3905 Diags.Report(diag::err_drv_argument_not_allowed_with) 3906 << A->getAsString(Args) << GetInputKindName(IK); 3907 } 3908 } 3909 } 3910 3911 // -cl-std only applies for OpenCL language standards. 3912 // Override the -std option in this case. 3913 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3914 LangStandard::Kind OpenCLLangStd 3915 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3916 .Cases("cl", "CL", LangStandard::lang_opencl10) 3917 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3918 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3919 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3920 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3921 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3922 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3923 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3924 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3925 .Default(LangStandard::lang_unspecified); 3926 3927 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3928 Diags.Report(diag::err_drv_invalid_value) 3929 << A->getAsString(Args) << A->getValue(); 3930 } 3931 else 3932 LangStd = OpenCLLangStd; 3933 } 3934 3935 // These need to be parsed now. They are used to set OpenCL defaults. 3936 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3937 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3938 3939 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3940 3941 // The key paths of codegen options defined in Options.td start with 3942 // "LangOpts->". Let's provide the expected variable name and type. 3943 LangOptions *LangOpts = &Opts; 3944 3945 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3946 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3947 #include "clang/Driver/Options.inc" 3948 #undef LANG_OPTION_WITH_MARSHALLING 3949 3950 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3951 StringRef Name = A->getValue(); 3952 if (Name == "full" || Name == "branch") { 3953 Opts.CFProtectionBranch = 1; 3954 } 3955 } 3956 3957 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3958 !Args.hasArg(OPT_sycl_std_EQ)) { 3959 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3960 // provide -sycl-std=, we want to default it to whatever the default SYCL 3961 // version is. I could not find a way to express this with the options 3962 // tablegen because we still want this value to be SYCL_None when the user 3963 // is not in device or host mode. 3964 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3965 } 3966 3967 if (Opts.ObjC) { 3968 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3969 StringRef value = arg->getValue(); 3970 if (Opts.ObjCRuntime.tryParse(value)) 3971 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3972 } 3973 3974 if (Args.hasArg(OPT_fobjc_gc_only)) 3975 Opts.setGC(LangOptions::GCOnly); 3976 else if (Args.hasArg(OPT_fobjc_gc)) 3977 Opts.setGC(LangOptions::HybridGC); 3978 else if (Args.hasArg(OPT_fobjc_arc)) { 3979 Opts.ObjCAutoRefCount = 1; 3980 if (!Opts.ObjCRuntime.allowsARC()) 3981 Diags.Report(diag::err_arc_unsupported_on_runtime); 3982 } 3983 3984 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3985 // whether the feature is actually enabled. This is predominantly 3986 // determined by -fobjc-runtime, but we allow it to be overridden 3987 // from the command line for testing purposes. 3988 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3989 Opts.ObjCWeakRuntime = 1; 3990 else 3991 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3992 3993 // ObjCWeak determines whether __weak is actually enabled. 3994 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3995 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3996 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3997 assert(!Opts.ObjCWeak); 3998 } else if (Opts.getGC() != LangOptions::NonGC) { 3999 Diags.Report(diag::err_objc_weak_with_gc); 4000 } else if (!Opts.ObjCWeakRuntime) { 4001 Diags.Report(diag::err_objc_weak_unsupported); 4002 } else { 4003 Opts.ObjCWeak = 1; 4004 } 4005 } else if (Opts.ObjCAutoRefCount) { 4006 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 4007 } 4008 4009 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 4010 Opts.ObjCSubscriptingLegacyRuntime = 4011 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 4012 } 4013 4014 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 4015 // Check that the version has 1 to 3 components and the minor and patch 4016 // versions fit in two decimal digits. 4017 VersionTuple GNUCVer; 4018 bool Invalid = GNUCVer.tryParse(A->getValue()); 4019 unsigned Major = GNUCVer.getMajor(); 4020 unsigned Minor = GNUCVer.getMinor().value_or(0); 4021 unsigned Patch = GNUCVer.getSubminor().value_or(0); 4022 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 4023 Diags.Report(diag::err_drv_invalid_value) 4024 << A->getAsString(Args) << A->getValue(); 4025 } 4026 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 4027 } 4028 4029 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 4030 Opts.IgnoreXCOFFVisibility = 1; 4031 4032 if (Args.hasArg(OPT_ftrapv)) { 4033 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 4034 // Set the handler, if one is specified. 4035 Opts.OverflowHandler = 4036 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 4037 } 4038 else if (Args.hasArg(OPT_fwrapv)) 4039 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 4040 4041 Opts.MSCompatibilityVersion = 0; 4042 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 4043 VersionTuple VT; 4044 if (VT.tryParse(A->getValue())) 4045 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 4046 << A->getValue(); 4047 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 4048 VT.getMinor().value_or(0) * 100000 + 4049 VT.getSubminor().value_or(0); 4050 } 4051 4052 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 4053 // is specified, or -std is set to a conforming mode. 4054 // Trigraphs are disabled by default in C++17 and C23 onwards. 4055 // For z/OS, trigraphs are enabled by default (without regard to the above). 4056 Opts.Trigraphs = 4057 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 4058 T.isOSzOS(); 4059 Opts.Trigraphs = 4060 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 4061 4062 Opts.ZOSExt = 4063 Args.hasFlag(OPT_fzos_extensions, OPT_fno_zos_extensions, T.isOSzOS()); 4064 4065 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 4066 && Opts.OpenCLVersion == 200); 4067 4068 Opts.ConvergentFunctions = Args.hasArg(OPT_fconvergent_functions) || 4069 Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 4070 Opts.SYCLIsDevice || Opts.HLSL; 4071 4072 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 4073 if (!Opts.NoBuiltin) 4074 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 4075 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 4076 if (A->getOption().matches(options::OPT_mlong_double_64)) 4077 Opts.LongDoubleSize = 64; 4078 else if (A->getOption().matches(options::OPT_mlong_double_80)) 4079 Opts.LongDoubleSize = 80; 4080 else if (A->getOption().matches(options::OPT_mlong_double_128)) 4081 Opts.LongDoubleSize = 128; 4082 else 4083 Opts.LongDoubleSize = 0; 4084 } 4085 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 4086 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4087 4088 llvm::sort(Opts.ModuleFeatures); 4089 4090 // -mrtd option 4091 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 4092 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 4093 Diags.Report(diag::err_drv_argument_not_allowed_with) 4094 << A->getSpelling() << "-fdefault-calling-conv"; 4095 else { 4096 switch (T.getArch()) { 4097 case llvm::Triple::x86: 4098 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 4099 break; 4100 case llvm::Triple::m68k: 4101 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall); 4102 break; 4103 default: 4104 Diags.Report(diag::err_drv_argument_not_allowed_with) 4105 << A->getSpelling() << T.getTriple(); 4106 } 4107 } 4108 } 4109 4110 // Check if -fopenmp is specified and set default version to 5.0. 4111 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 51 : 0; 4112 // Check if -fopenmp-simd is specified. 4113 bool IsSimdSpecified = 4114 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 4115 /*Default=*/false); 4116 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 4117 Opts.OpenMPUseTLS = 4118 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 4119 Opts.OpenMPIsTargetDevice = 4120 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_target_device); 4121 Opts.OpenMPIRBuilder = 4122 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 4123 bool IsTargetSpecified = 4124 Opts.OpenMPIsTargetDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 4125 4126 Opts.ConvergentFunctions = 4127 Opts.ConvergentFunctions || Opts.OpenMPIsTargetDevice; 4128 4129 if (Opts.OpenMP || Opts.OpenMPSimd) { 4130 if (int Version = getLastArgIntValue( 4131 Args, OPT_fopenmp_version_EQ, 4132 (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags)) 4133 Opts.OpenMP = Version; 4134 // Provide diagnostic when a given target is not expected to be an OpenMP 4135 // device or host. 4136 if (!Opts.OpenMPIsTargetDevice) { 4137 switch (T.getArch()) { 4138 default: 4139 break; 4140 // Add unsupported host targets here: 4141 case llvm::Triple::nvptx: 4142 case llvm::Triple::nvptx64: 4143 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 4144 break; 4145 } 4146 } 4147 } 4148 4149 // Set the flag to prevent the implementation from emitting device exception 4150 // handling code for those requiring so. 4151 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) || 4152 Opts.OpenCLCPlusPlus) { 4153 4154 Opts.Exceptions = 0; 4155 Opts.CXXExceptions = 0; 4156 } 4157 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) { 4158 Opts.OpenMPCUDANumSMs = 4159 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 4160 Opts.OpenMPCUDANumSMs, Diags); 4161 Opts.OpenMPCUDABlocksPerSM = 4162 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 4163 Opts.OpenMPCUDABlocksPerSM, Diags); 4164 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 4165 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 4166 Opts.OpenMPCUDAReductionBufNum, Diags); 4167 } 4168 4169 // Set the value of the debugging flag used in the new offloading device RTL. 4170 // Set either by a specific value or to a default if not specified. 4171 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 4172 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 4173 Opts.OpenMPTargetDebug = getLastArgIntValue( 4174 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 4175 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 4176 Opts.OpenMPTargetDebug = 1; 4177 } 4178 4179 if (Opts.OpenMPIsTargetDevice) { 4180 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 4181 Opts.OpenMPTeamSubscription = true; 4182 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 4183 Opts.OpenMPThreadSubscription = true; 4184 } 4185 4186 // Get the OpenMP target triples if any. 4187 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 4188 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 4189 auto getArchPtrSize = [](const llvm::Triple &T) { 4190 if (T.isArch16Bit()) 4191 return Arch16Bit; 4192 if (T.isArch32Bit()) 4193 return Arch32Bit; 4194 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 4195 return Arch64Bit; 4196 }; 4197 4198 for (unsigned i = 0; i < A->getNumValues(); ++i) { 4199 llvm::Triple TT(A->getValue(i)); 4200 4201 if (TT.getArch() == llvm::Triple::UnknownArch || 4202 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4203 TT.getArch() == llvm::Triple::systemz || 4204 TT.getArch() == llvm::Triple::nvptx || 4205 TT.getArch() == llvm::Triple::nvptx64 || 4206 TT.getArch() == llvm::Triple::amdgcn || 4207 TT.getArch() == llvm::Triple::x86 || 4208 TT.getArch() == llvm::Triple::x86_64)) 4209 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4210 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4211 Diags.Report(diag::err_drv_incompatible_omp_arch) 4212 << A->getValue(i) << T.str(); 4213 else 4214 Opts.OMPTargetTriples.push_back(TT); 4215 } 4216 } 4217 4218 // Get OpenMP host file path if any and report if a non existent file is 4219 // found 4220 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4221 Opts.OMPHostIRFile = A->getValue(); 4222 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4223 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4224 << Opts.OMPHostIRFile; 4225 } 4226 4227 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4228 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice && 4229 (T.isNVPTX() || T.isAMDGCN()) && 4230 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4231 4232 // OpenACC Configuration. 4233 if (Args.hasArg(options::OPT_fopenacc)) { 4234 Opts.OpenACC = true; 4235 4236 if (Arg *A = Args.getLastArg(options::OPT_openacc_macro_override)) 4237 Opts.OpenACCMacroOverride = A->getValue(); 4238 } 4239 4240 // FIXME: Eliminate this dependency. 4241 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4242 OptSize = getOptimizationLevelSize(Args); 4243 Opts.Optimize = Opt != 0; 4244 Opts.OptimizeSize = OptSize != 0; 4245 4246 // This is the __NO_INLINE__ define, which just depends on things like the 4247 // optimization level and -fno-inline, not actually whether the backend has 4248 // inlining enabled. 4249 Opts.NoInlineDefine = !Opts.Optimize; 4250 if (Arg *InlineArg = Args.getLastArg( 4251 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4252 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4253 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4254 Opts.NoInlineDefine = true; 4255 4256 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4257 StringRef Val = A->getValue(); 4258 if (Val == "fast") 4259 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4260 else if (Val == "on") 4261 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4262 else if (Val == "off") 4263 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4264 else if (Val == "fast-honor-pragmas") 4265 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4266 else 4267 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4268 } 4269 4270 // Parse -fsanitize= arguments. 4271 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4272 Diags, Opts.Sanitize); 4273 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4274 std::vector<std::string> systemIgnorelists = 4275 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4276 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4277 systemIgnorelists.begin(), 4278 systemIgnorelists.end()); 4279 4280 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4281 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4282 4283 StringRef Ver = A->getValue(); 4284 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4285 unsigned Major, Minor = 0; 4286 4287 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4288 // y or y.0 (4 <= y <= current version). 4289 if (!VerParts.first.starts_with("0") && 4290 !VerParts.first.getAsInteger(10, Major) && 3 <= Major && 4291 Major <= CLANG_VERSION_MAJOR && 4292 (Major == 3 4293 ? VerParts.second.size() == 1 && 4294 !VerParts.second.getAsInteger(10, Minor) 4295 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) { 4296 // Got a valid version number. 4297 if (Major == 3 && Minor <= 8) 4298 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4299 else if (Major <= 4) 4300 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4301 else if (Major <= 6) 4302 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4303 else if (Major <= 7) 4304 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4305 else if (Major <= 9) 4306 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4307 else if (Major <= 11) 4308 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4309 else if (Major <= 12) 4310 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4311 else if (Major <= 14) 4312 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4313 else if (Major <= 15) 4314 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4315 else if (Major <= 17) 4316 Opts.setClangABICompat(LangOptions::ClangABI::Ver17); 4317 else if (Major <= 18) 4318 Opts.setClangABICompat(LangOptions::ClangABI::Ver18); 4319 } else if (Ver != "latest") { 4320 Diags.Report(diag::err_drv_invalid_value) 4321 << A->getAsString(Args) << A->getValue(); 4322 } 4323 } 4324 4325 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4326 StringRef SignScope = A->getValue(); 4327 4328 if (SignScope.equals_insensitive("none")) 4329 Opts.setSignReturnAddressScope( 4330 LangOptions::SignReturnAddressScopeKind::None); 4331 else if (SignScope.equals_insensitive("all")) 4332 Opts.setSignReturnAddressScope( 4333 LangOptions::SignReturnAddressScopeKind::All); 4334 else if (SignScope.equals_insensitive("non-leaf")) 4335 Opts.setSignReturnAddressScope( 4336 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4337 else 4338 Diags.Report(diag::err_drv_invalid_value) 4339 << A->getAsString(Args) << SignScope; 4340 4341 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4342 StringRef SignKey = A->getValue(); 4343 if (!SignScope.empty() && !SignKey.empty()) { 4344 if (SignKey == "a_key") 4345 Opts.setSignReturnAddressKey( 4346 LangOptions::SignReturnAddressKeyKind::AKey); 4347 else if (SignKey == "b_key") 4348 Opts.setSignReturnAddressKey( 4349 LangOptions::SignReturnAddressKeyKind::BKey); 4350 else 4351 Diags.Report(diag::err_drv_invalid_value) 4352 << A->getAsString(Args) << SignKey; 4353 } 4354 } 4355 } 4356 4357 // The value can be empty, which indicates the system default should be used. 4358 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4359 if (!CXXABI.empty()) { 4360 if (!TargetCXXABI::isABI(CXXABI)) { 4361 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4362 } else { 4363 auto Kind = TargetCXXABI::getKind(CXXABI); 4364 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4365 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4366 else 4367 Opts.CXXABI = Kind; 4368 } 4369 } 4370 4371 Opts.RelativeCXXABIVTables = 4372 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4373 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4374 TargetCXXABI::usesRelativeVTables(T)); 4375 4376 // RTTI is on by default. 4377 bool HasRTTI = !Args.hasArg(options::OPT_fno_rtti); 4378 Opts.OmitVTableRTTI = 4379 Args.hasFlag(options::OPT_fexperimental_omit_vtable_rtti, 4380 options::OPT_fno_experimental_omit_vtable_rtti, false); 4381 if (Opts.OmitVTableRTTI && HasRTTI) 4382 Diags.Report(diag::err_drv_using_omit_rtti_component_without_no_rtti); 4383 4384 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4385 auto Split = StringRef(A).split('='); 4386 Opts.MacroPrefixMap.insert( 4387 {std::string(Split.first), std::string(Split.second)}); 4388 } 4389 4390 Opts.UseTargetPathSeparator = 4391 !Args.getLastArg(OPT_fno_file_reproducible) && 4392 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4393 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4394 Args.getLastArg(OPT_ffile_reproducible)); 4395 4396 // Error if -mvscale-min is unbounded. 4397 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4398 unsigned VScaleMin; 4399 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4400 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4401 } 4402 4403 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4404 std::ifstream SeedFile(A->getValue(0)); 4405 4406 if (!SeedFile.is_open()) 4407 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4408 << A->getValue(0); 4409 4410 std::getline(SeedFile, Opts.RandstructSeed); 4411 } 4412 4413 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4414 Opts.RandstructSeed = A->getValue(0); 4415 4416 // Validate options for HLSL 4417 if (Opts.HLSL) { 4418 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to 4419 // handle PhysicalStorageBuffer64 memory model 4420 if (T.isDXIL() || T.isSPIRVLogical()) { 4421 enum { ShaderModel, VulkanEnv, ShaderStage }; 4422 enum { OS, Environment }; 4423 4424 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel; 4425 4426 if (T.getOSName().empty()) { 4427 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4428 << ExpectedOS << OS << T.str(); 4429 } else if (T.getEnvironmentName().empty()) { 4430 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4431 << ShaderStage << Environment << T.str(); 4432 } else if (!T.isShaderStageEnvironment()) { 4433 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4434 << ShaderStage << T.getEnvironmentName() << T.str(); 4435 } 4436 4437 if (T.isDXIL()) { 4438 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) { 4439 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4440 << ShaderModel << T.getOSName() << T.str(); 4441 } 4442 // Validate that if fnative-half-type is given, that 4443 // the language standard is at least hlsl2018, and that 4444 // the target shader model is at least 6.2. 4445 if (Args.getLastArg(OPT_fnative_half_type)) { 4446 const LangStandard &Std = 4447 LangStandard::getLangStandardForKind(Opts.LangStd); 4448 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018 && 4449 T.getOSVersion() >= VersionTuple(6, 2))) 4450 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4451 << "-enable-16bit-types" << true << Std.getName() 4452 << T.getOSVersion().getAsString(); 4453 } 4454 } else if (T.isSPIRVLogical()) { 4455 if (!T.isVulkanOS() || T.getVulkanVersion() == VersionTuple(0)) { 4456 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4457 << VulkanEnv << T.getOSName() << T.str(); 4458 } 4459 if (Args.getLastArg(OPT_fnative_half_type)) { 4460 const LangStandard &Std = 4461 LangStandard::getLangStandardForKind(Opts.LangStd); 4462 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018)) 4463 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4464 << "-fnative-half-type" << false << Std.getName(); 4465 } 4466 } else { 4467 llvm_unreachable("expected DXIL or SPIR-V target"); 4468 } 4469 } else 4470 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4471 } 4472 4473 return Diags.getNumErrors() == NumErrorsBefore; 4474 } 4475 4476 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4477 switch (Action) { 4478 case frontend::ASTDeclList: 4479 case frontend::ASTDump: 4480 case frontend::ASTPrint: 4481 case frontend::ASTView: 4482 case frontend::EmitAssembly: 4483 case frontend::EmitBC: 4484 case frontend::EmitCIR: 4485 case frontend::EmitHTML: 4486 case frontend::EmitLLVM: 4487 case frontend::EmitLLVMOnly: 4488 case frontend::EmitCodeGenOnly: 4489 case frontend::EmitObj: 4490 case frontend::ExtractAPI: 4491 case frontend::FixIt: 4492 case frontend::GenerateModule: 4493 case frontend::GenerateModuleInterface: 4494 case frontend::GenerateReducedModuleInterface: 4495 case frontend::GenerateHeaderUnit: 4496 case frontend::GeneratePCH: 4497 case frontend::GenerateInterfaceStubs: 4498 case frontend::ParseSyntaxOnly: 4499 case frontend::ModuleFileInfo: 4500 case frontend::VerifyPCH: 4501 case frontend::PluginAction: 4502 case frontend::RewriteObjC: 4503 case frontend::RewriteTest: 4504 case frontend::RunAnalysis: 4505 case frontend::TemplightDump: 4506 case frontend::MigrateSource: 4507 return false; 4508 4509 case frontend::DumpCompilerOptions: 4510 case frontend::DumpRawTokens: 4511 case frontend::DumpTokens: 4512 case frontend::InitOnly: 4513 case frontend::PrintPreamble: 4514 case frontend::PrintPreprocessedInput: 4515 case frontend::RewriteMacros: 4516 case frontend::RunPreprocessorOnly: 4517 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4518 return true; 4519 } 4520 llvm_unreachable("invalid frontend action"); 4521 } 4522 4523 static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts, 4524 ArgumentConsumer Consumer, 4525 const LangOptions &LangOpts, 4526 const FrontendOptions &FrontendOpts, 4527 const CodeGenOptions &CodeGenOpts) { 4528 const PreprocessorOptions *PreprocessorOpts = &Opts; 4529 4530 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4531 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4532 #include "clang/Driver/Options.inc" 4533 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4534 4535 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4536 GenerateArg(Consumer, OPT_pch_through_hdrstop_use); 4537 4538 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4539 GenerateArg(Consumer, OPT_error_on_deserialized_pch_decl, D); 4540 4541 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4542 GenerateArg(Consumer, OPT_preamble_bytes_EQ, 4543 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4544 (Opts.PrecompiledPreambleBytes.second ? "1" : "0")); 4545 4546 for (const auto &M : Opts.Macros) { 4547 // Don't generate __CET__ macro definitions. They are implied by the 4548 // -fcf-protection option that is generated elsewhere. 4549 if (M.first == "__CET__=1" && !M.second && 4550 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4551 continue; 4552 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4553 !CodeGenOpts.CFProtectionBranch) 4554 continue; 4555 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4556 CodeGenOpts.CFProtectionBranch) 4557 continue; 4558 4559 GenerateArg(Consumer, M.second ? OPT_U : OPT_D, M.first); 4560 } 4561 4562 for (const auto &I : Opts.Includes) { 4563 // Don't generate OpenCL includes. They are implied by other flags that are 4564 // generated elsewhere. 4565 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4566 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4567 I == "opencl-c.h")) 4568 continue; 4569 // Don't generate HLSL includes. They are implied by other flags that are 4570 // generated elsewhere. 4571 if (LangOpts.HLSL && I == "hlsl.h") 4572 continue; 4573 4574 GenerateArg(Consumer, OPT_include, I); 4575 } 4576 4577 for (const auto &CI : Opts.ChainedIncludes) 4578 GenerateArg(Consumer, OPT_chain_include, CI); 4579 4580 for (const auto &RF : Opts.RemappedFiles) 4581 GenerateArg(Consumer, OPT_remap_file, RF.first + ";" + RF.second); 4582 4583 if (Opts.SourceDateEpoch) 4584 GenerateArg(Consumer, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch)); 4585 4586 if (Opts.DefineTargetOSMacros) 4587 GenerateArg(Consumer, OPT_fdefine_target_os_macros); 4588 4589 for (const auto &EmbedEntry : Opts.EmbedEntries) 4590 GenerateArg(Consumer, OPT_embed_dir_EQ, EmbedEntry); 4591 4592 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4593 // generated elsewhere. 4594 } 4595 4596 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4597 DiagnosticsEngine &Diags, 4598 frontend::ActionKind Action, 4599 const FrontendOptions &FrontendOpts) { 4600 unsigned NumErrorsBefore = Diags.getNumErrors(); 4601 4602 PreprocessorOptions *PreprocessorOpts = &Opts; 4603 4604 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4605 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4606 #include "clang/Driver/Options.inc" 4607 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4608 4609 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4610 Args.hasArg(OPT_pch_through_hdrstop_use); 4611 4612 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4613 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4614 4615 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4616 StringRef Value(A->getValue()); 4617 size_t Comma = Value.find(','); 4618 unsigned Bytes = 0; 4619 unsigned EndOfLine = 0; 4620 4621 if (Comma == StringRef::npos || 4622 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4623 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4624 Diags.Report(diag::err_drv_preamble_format); 4625 else { 4626 Opts.PrecompiledPreambleBytes.first = Bytes; 4627 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4628 } 4629 } 4630 4631 // Add the __CET__ macro if a CFProtection option is set. 4632 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4633 StringRef Name = A->getValue(); 4634 if (Name == "branch") 4635 Opts.addMacroDef("__CET__=1"); 4636 else if (Name == "return") 4637 Opts.addMacroDef("__CET__=2"); 4638 else if (Name == "full") 4639 Opts.addMacroDef("__CET__=3"); 4640 } 4641 4642 // Add macros from the command line. 4643 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4644 if (A->getOption().matches(OPT_D)) 4645 Opts.addMacroDef(A->getValue()); 4646 else 4647 Opts.addMacroUndef(A->getValue()); 4648 } 4649 4650 // Add the ordered list of -includes. 4651 for (const auto *A : Args.filtered(OPT_include)) 4652 Opts.Includes.emplace_back(A->getValue()); 4653 4654 for (const auto *A : Args.filtered(OPT_chain_include)) 4655 Opts.ChainedIncludes.emplace_back(A->getValue()); 4656 4657 for (const auto *A : Args.filtered(OPT_remap_file)) { 4658 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4659 4660 if (Split.second.empty()) { 4661 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4662 continue; 4663 } 4664 4665 Opts.addRemappedFile(Split.first, Split.second); 4666 } 4667 4668 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4669 StringRef Epoch = A->getValue(); 4670 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4671 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4672 // 9999-12-31T23:59:59Z) as the upper bound. 4673 const uint64_t MaxTimestamp = 4674 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4675 uint64_t V; 4676 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4677 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4678 << Epoch << MaxTimestamp; 4679 } else { 4680 Opts.SourceDateEpoch = V; 4681 } 4682 } 4683 4684 for (const auto *A : Args.filtered(OPT_embed_dir_EQ)) { 4685 StringRef Val = A->getValue(); 4686 Opts.EmbedEntries.push_back(std::string(Val)); 4687 } 4688 4689 // Always avoid lexing editor placeholders when we're just running the 4690 // preprocessor as we never want to emit the 4691 // "editor placeholder in source file" error in PP only mode. 4692 if (isStrictlyPreprocessorAction(Action)) 4693 Opts.LexEditorPlaceholders = false; 4694 4695 Opts.DefineTargetOSMacros = 4696 Args.hasFlag(OPT_fdefine_target_os_macros, 4697 OPT_fno_define_target_os_macros, Opts.DefineTargetOSMacros); 4698 4699 return Diags.getNumErrors() == NumErrorsBefore; 4700 } 4701 4702 static void 4703 GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts, 4704 ArgumentConsumer Consumer, 4705 frontend::ActionKind Action) { 4706 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4707 4708 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4709 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4710 #include "clang/Driver/Options.inc" 4711 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4712 4713 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4714 if (Generate_dM) 4715 GenerateArg(Consumer, OPT_dM); 4716 if (!Generate_dM && Opts.ShowMacros) 4717 GenerateArg(Consumer, OPT_dD); 4718 if (Opts.DirectivesOnly) 4719 GenerateArg(Consumer, OPT_fdirectives_only); 4720 } 4721 4722 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4723 ArgList &Args, DiagnosticsEngine &Diags, 4724 frontend::ActionKind Action) { 4725 unsigned NumErrorsBefore = Diags.getNumErrors(); 4726 4727 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4728 4729 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4730 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4731 #include "clang/Driver/Options.inc" 4732 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4733 4734 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4735 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4736 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4737 4738 return Diags.getNumErrors() == NumErrorsBefore; 4739 } 4740 4741 static void GenerateTargetArgs(const TargetOptions &Opts, 4742 ArgumentConsumer Consumer) { 4743 const TargetOptions *TargetOpts = &Opts; 4744 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4745 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4746 #include "clang/Driver/Options.inc" 4747 #undef TARGET_OPTION_WITH_MARSHALLING 4748 4749 if (!Opts.SDKVersion.empty()) 4750 GenerateArg(Consumer, OPT_target_sdk_version_EQ, 4751 Opts.SDKVersion.getAsString()); 4752 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4753 GenerateArg(Consumer, OPT_darwin_target_variant_sdk_version_EQ, 4754 Opts.DarwinTargetVariantSDKVersion.getAsString()); 4755 } 4756 4757 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4758 DiagnosticsEngine &Diags) { 4759 unsigned NumErrorsBefore = Diags.getNumErrors(); 4760 4761 TargetOptions *TargetOpts = &Opts; 4762 4763 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4764 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4765 #include "clang/Driver/Options.inc" 4766 #undef TARGET_OPTION_WITH_MARSHALLING 4767 4768 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4769 llvm::VersionTuple Version; 4770 if (Version.tryParse(A->getValue())) 4771 Diags.Report(diag::err_drv_invalid_value) 4772 << A->getAsString(Args) << A->getValue(); 4773 else 4774 Opts.SDKVersion = Version; 4775 } 4776 if (Arg *A = 4777 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4778 llvm::VersionTuple Version; 4779 if (Version.tryParse(A->getValue())) 4780 Diags.Report(diag::err_drv_invalid_value) 4781 << A->getAsString(Args) << A->getValue(); 4782 else 4783 Opts.DarwinTargetVariantSDKVersion = Version; 4784 } 4785 4786 return Diags.getNumErrors() == NumErrorsBefore; 4787 } 4788 4789 bool CompilerInvocation::CreateFromArgsImpl( 4790 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4791 DiagnosticsEngine &Diags, const char *Argv0) { 4792 unsigned NumErrorsBefore = Diags.getNumErrors(); 4793 4794 // Parse the arguments. 4795 const OptTable &Opts = getDriverOptTable(); 4796 llvm::opt::Visibility VisibilityMask(options::CC1Option); 4797 unsigned MissingArgIndex, MissingArgCount; 4798 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4799 MissingArgCount, VisibilityMask); 4800 LangOptions &LangOpts = Res.getLangOpts(); 4801 4802 // Check for missing argument error. 4803 if (MissingArgCount) 4804 Diags.Report(diag::err_drv_missing_argument) 4805 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4806 4807 // Issue errors on unknown arguments. 4808 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4809 auto ArgString = A->getAsString(Args); 4810 std::string Nearest; 4811 if (Opts.findNearest(ArgString, Nearest, VisibilityMask) > 1) 4812 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4813 else 4814 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4815 << ArgString << Nearest; 4816 } 4817 4818 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4819 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4820 ParseAnalyzerArgs(Res.getAnalyzerOpts(), Args, Diags); 4821 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4822 /*DefaultDiagColor=*/false); 4823 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4824 // FIXME: We shouldn't have to pass the DashX option around here 4825 InputKind DashX = Res.getFrontendOpts().DashX; 4826 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4827 llvm::Triple T(Res.getTargetOpts().Triple); 4828 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4829 Res.getFileSystemOpts().WorkingDir); 4830 ParseAPINotesArgs(Res.getAPINotesOpts(), Args, Diags); 4831 4832 ParsePointerAuthArgs(LangOpts, Args, Diags); 4833 4834 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4835 Diags); 4836 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4837 LangOpts.ObjCExceptions = 1; 4838 4839 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4840 if (Warning == "misexpect" && 4841 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4842 Res.getCodeGenOpts().MisExpect = true; 4843 } 4844 } 4845 4846 if (LangOpts.CUDA) { 4847 // During CUDA device-side compilation, the aux triple is the 4848 // triple used for host compilation. 4849 if (LangOpts.CUDAIsDevice) 4850 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4851 } 4852 4853 // Set the triple of the host for OpenMP device compile. 4854 if (LangOpts.OpenMPIsTargetDevice) 4855 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4856 4857 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4858 Res.getFrontendOpts().OutputFile, LangOpts); 4859 4860 // FIXME: Override value name discarding when asan or msan is used because the 4861 // backend passes depend on the name of the alloca in order to print out 4862 // names. 4863 Res.getCodeGenOpts().DiscardValueNames &= 4864 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4865 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4866 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4867 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4868 4869 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4870 Res.getFrontendOpts().ProgramAction, 4871 Res.getFrontendOpts()); 4872 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4873 Res.getFrontendOpts().ProgramAction); 4874 4875 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4876 Res.getFrontendOpts().ProgramAction, 4877 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4878 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4879 Res.getDependencyOutputOpts().Targets.empty()) 4880 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4881 4882 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4883 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4884 !Res.getLangOpts().Sanitize.empty()) { 4885 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4886 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4887 } 4888 4889 // Store the command-line for using in the CodeView backend. 4890 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4891 Res.getCodeGenOpts().Argv0 = Argv0; 4892 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4893 } 4894 4895 // Set PGOOptions. Need to create a temporary VFS to read the profile 4896 // to determine the PGO type. 4897 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 4898 auto FS = 4899 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 4900 Diags, llvm::vfs::getRealFileSystem()); 4901 setPGOUseInstrumentor(Res.getCodeGenOpts(), 4902 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 4903 Diags); 4904 } 4905 4906 FixupInvocation(Res, Diags, Args, DashX); 4907 4908 return Diags.getNumErrors() == NumErrorsBefore; 4909 } 4910 4911 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4912 ArrayRef<const char *> CommandLineArgs, 4913 DiagnosticsEngine &Diags, 4914 const char *Argv0) { 4915 CompilerInvocation DummyInvocation; 4916 4917 return RoundTrip( 4918 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4919 DiagnosticsEngine &Diags, const char *Argv0) { 4920 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4921 }, 4922 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4923 StringAllocator SA) { 4924 Args.push_back("-cc1"); 4925 Invocation.generateCC1CommandLine(Args, SA); 4926 }, 4927 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4928 } 4929 4930 std::string CompilerInvocation::getModuleHash() const { 4931 // FIXME: Consider using SHA1 instead of MD5. 4932 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder; 4933 4934 // Note: For QoI reasons, the things we use as a hash here should all be 4935 // dumped via the -module-info flag. 4936 4937 // Start the signature with the compiler version. 4938 HBuilder.add(getClangFullRepositoryVersion()); 4939 4940 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4941 // and getClangFullRepositoryVersion() doesn't include git revision. 4942 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4943 4944 // Extend the signature with the language options 4945 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4946 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4947 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4948 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4949 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4950 #include "clang/Basic/LangOptions.def" 4951 4952 HBuilder.addRange(getLangOpts().ModuleFeatures); 4953 4954 HBuilder.add(getLangOpts().ObjCRuntime); 4955 HBuilder.addRange(getLangOpts().CommentOpts.BlockCommandNames); 4956 4957 // Extend the signature with the target options. 4958 HBuilder.add(getTargetOpts().Triple, getTargetOpts().CPU, 4959 getTargetOpts().TuneCPU, getTargetOpts().ABI); 4960 HBuilder.addRange(getTargetOpts().FeaturesAsWritten); 4961 4962 // Extend the signature with preprocessor options. 4963 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4964 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4965 4966 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4967 for (const auto &Macro : getPreprocessorOpts().Macros) { 4968 // If we're supposed to ignore this macro for the purposes of modules, 4969 // don't put it into the hash. 4970 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4971 // Check whether we're ignoring this macro. 4972 StringRef MacroDef = Macro.first; 4973 if (hsOpts.ModulesIgnoreMacros.count( 4974 llvm::CachedHashString(MacroDef.split('=').first))) 4975 continue; 4976 } 4977 4978 HBuilder.add(Macro); 4979 } 4980 4981 // Extend the signature with the sysroot and other header search options. 4982 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4983 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4984 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4985 hsOpts.ModulesValidateDiagnosticOptions); 4986 HBuilder.add(hsOpts.ResourceDir); 4987 4988 if (hsOpts.ModulesStrictContextHash) { 4989 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4990 HBuilder.addRange(hsOpts.UserEntries); 4991 HBuilder.addRange(hsOpts.VFSOverlayFiles); 4992 4993 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4994 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4995 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4996 HBuilder.add(diagOpts.get##Name()); 4997 #include "clang/Basic/DiagnosticOptions.def" 4998 #undef DIAGOPT 4999 #undef ENUM_DIAGOPT 5000 } 5001 5002 // Extend the signature with the user build path. 5003 HBuilder.add(hsOpts.ModuleUserBuildPath); 5004 5005 // Extend the signature with the module file extensions. 5006 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 5007 ext->hashExtension(HBuilder); 5008 5009 // Extend the signature with the Swift version for API notes. 5010 const APINotesOptions &APINotesOpts = getAPINotesOpts(); 5011 if (!APINotesOpts.SwiftVersion.empty()) { 5012 HBuilder.add(APINotesOpts.SwiftVersion.getMajor()); 5013 if (auto Minor = APINotesOpts.SwiftVersion.getMinor()) 5014 HBuilder.add(*Minor); 5015 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor()) 5016 HBuilder.add(*Subminor); 5017 if (auto Build = APINotesOpts.SwiftVersion.getBuild()) 5018 HBuilder.add(*Build); 5019 } 5020 5021 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 5022 // affects the debug info in the PCM. 5023 if (getCodeGenOpts().DebugTypeExtRefs) 5024 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 5025 5026 // Extend the signature with the affecting debug options. 5027 if (getHeaderSearchOpts().ModuleFormat == "obj") { 5028 #define DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 5029 #define VALUE_DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 5030 #define ENUM_DEBUGOPT(Name, Type, Bits, Default) \ 5031 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name())); 5032 #define BENIGN_DEBUGOPT(Name, Bits, Default) 5033 #define BENIGN_VALUE_DEBUGOPT(Name, Bits, Default) 5034 #define BENIGN_ENUM_DEBUGOPT(Name, Type, Bits, Default) 5035 #include "clang/Basic/DebugOptions.def" 5036 } 5037 5038 // Extend the signature with the enabled sanitizers, if at least one is 5039 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 5040 SanitizerSet SanHash = getLangOpts().Sanitize; 5041 SanHash.clear(getPPTransparentSanitizers()); 5042 if (!SanHash.empty()) 5043 HBuilder.add(SanHash.Mask); 5044 5045 llvm::MD5::MD5Result Result; 5046 HBuilder.getHasher().final(Result); 5047 uint64_t Hash = Result.high() ^ Result.low(); 5048 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 5049 } 5050 5051 void CompilerInvocationBase::generateCC1CommandLine( 5052 ArgumentConsumer Consumer) const { 5053 llvm::Triple T(getTargetOpts().Triple); 5054 5055 GenerateFileSystemArgs(getFileSystemOpts(), Consumer); 5056 GenerateMigratorArgs(getMigratorOpts(), Consumer); 5057 GenerateAnalyzerArgs(getAnalyzerOpts(), Consumer); 5058 GenerateDiagnosticArgs(getDiagnosticOpts(), Consumer, 5059 /*DefaultDiagColor=*/false); 5060 GenerateFrontendArgs(getFrontendOpts(), Consumer, getLangOpts().IsHeaderFile); 5061 GenerateTargetArgs(getTargetOpts(), Consumer); 5062 GenerateHeaderSearchArgs(getHeaderSearchOpts(), Consumer); 5063 GenerateAPINotesArgs(getAPINotesOpts(), Consumer); 5064 GeneratePointerAuthArgs(getLangOpts(), Consumer); 5065 GenerateLangArgs(getLangOpts(), Consumer, T, getFrontendOpts().DashX); 5066 GenerateCodeGenArgs(getCodeGenOpts(), Consumer, T, 5067 getFrontendOpts().OutputFile, &getLangOpts()); 5068 GeneratePreprocessorArgs(getPreprocessorOpts(), Consumer, getLangOpts(), 5069 getFrontendOpts(), getCodeGenOpts()); 5070 GeneratePreprocessorOutputArgs(getPreprocessorOutputOpts(), Consumer, 5071 getFrontendOpts().ProgramAction); 5072 GenerateDependencyOutputArgs(getDependencyOutputOpts(), Consumer); 5073 } 5074 5075 std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const { 5076 std::vector<std::string> Args{"-cc1"}; 5077 generateCC1CommandLine( 5078 [&Args](const Twine &Arg) { Args.push_back(Arg.str()); }); 5079 return Args; 5080 } 5081 5082 void CompilerInvocation::resetNonModularOptions() { 5083 getLangOpts().resetNonModularOptions(); 5084 getPreprocessorOpts().resetNonModularOptions(); 5085 getCodeGenOpts().resetNonModularOptions(getHeaderSearchOpts().ModuleFormat); 5086 } 5087 5088 void CompilerInvocation::clearImplicitModuleBuildOptions() { 5089 getLangOpts().ImplicitModules = false; 5090 getHeaderSearchOpts().ImplicitModuleMaps = false; 5091 getHeaderSearchOpts().ModuleCachePath.clear(); 5092 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 5093 getHeaderSearchOpts().BuildSessionTimestamp = 0; 5094 // The specific values we canonicalize to for pruning don't affect behaviour, 5095 /// so use the default values so they may be dropped from the command-line. 5096 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 5097 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 5098 } 5099 5100 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5101 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 5102 DiagnosticsEngine &Diags) { 5103 return createVFSFromCompilerInvocation(CI, Diags, 5104 llvm::vfs::getRealFileSystem()); 5105 } 5106 5107 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5108 clang::createVFSFromCompilerInvocation( 5109 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 5110 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5111 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 5112 Diags, std::move(BaseFS)); 5113 } 5114 5115 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 5116 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 5117 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5118 if (VFSOverlayFiles.empty()) 5119 return BaseFS; 5120 5121 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 5122 // earlier vfs files are on the bottom 5123 for (const auto &File : VFSOverlayFiles) { 5124 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 5125 Result->getBufferForFile(File); 5126 if (!Buffer) { 5127 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 5128 continue; 5129 } 5130 5131 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 5132 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 5133 /*DiagContext*/ nullptr, Result); 5134 if (!FS) { 5135 Diags.Report(diag::err_invalid_vfs_overlay) << File; 5136 continue; 5137 } 5138 5139 Result = FS; 5140 } 5141 return Result; 5142 } 5143