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 = 1483 PointerAuthSchema(Key::ASIA, false, Discrimination::None); 1484 1485 Opts.CXXVTablePointers = PointerAuthSchema( 1486 Key::ASDA, LangOpts.PointerAuthVTPtrAddressDiscrimination, 1487 LangOpts.PointerAuthVTPtrTypeDiscrimination ? Discrimination::Type 1488 : Discrimination::None); 1489 Opts.CXXTypeInfoVTablePointer = 1490 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1491 Opts.CXXVTTVTablePointers = 1492 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1493 Opts.CXXVirtualFunctionPointers = Opts.CXXVirtualVariadicFunctionPointers = 1494 PointerAuthSchema(Key::ASIA, true, Discrimination::Decl); 1495 } 1496 } 1497 1498 static void parsePointerAuthOptions(PointerAuthOptions &Opts, 1499 const LangOptions &LangOpts, 1500 const llvm::Triple &Triple, 1501 DiagnosticsEngine &Diags) { 1502 if (!LangOpts.PointerAuthCalls) 1503 return; 1504 1505 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple); 1506 } 1507 1508 void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts, 1509 ArgumentConsumer Consumer, 1510 const llvm::Triple &T, 1511 const std::string &OutputFile, 1512 const LangOptions *LangOpts) { 1513 const CodeGenOptions &CodeGenOpts = Opts; 1514 1515 if (Opts.OptimizationLevel == 0) 1516 GenerateArg(Consumer, OPT_O0); 1517 else 1518 GenerateArg(Consumer, OPT_O, Twine(Opts.OptimizationLevel)); 1519 1520 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1521 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 1522 #include "clang/Driver/Options.inc" 1523 #undef CODEGEN_OPTION_WITH_MARSHALLING 1524 1525 if (Opts.OptimizationLevel > 0) { 1526 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1527 GenerateArg(Consumer, OPT_finline_functions); 1528 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1529 GenerateArg(Consumer, OPT_finline_hint_functions); 1530 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1531 GenerateArg(Consumer, OPT_fno_inline); 1532 } 1533 1534 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1535 GenerateArg(Consumer, OPT_fdirect_access_external_data); 1536 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1537 GenerateArg(Consumer, OPT_fno_direct_access_external_data); 1538 1539 std::optional<StringRef> DebugInfoVal; 1540 switch (Opts.DebugInfo) { 1541 case llvm::codegenoptions::DebugLineTablesOnly: 1542 DebugInfoVal = "line-tables-only"; 1543 break; 1544 case llvm::codegenoptions::DebugDirectivesOnly: 1545 DebugInfoVal = "line-directives-only"; 1546 break; 1547 case llvm::codegenoptions::DebugInfoConstructor: 1548 DebugInfoVal = "constructor"; 1549 break; 1550 case llvm::codegenoptions::LimitedDebugInfo: 1551 DebugInfoVal = "limited"; 1552 break; 1553 case llvm::codegenoptions::FullDebugInfo: 1554 DebugInfoVal = "standalone"; 1555 break; 1556 case llvm::codegenoptions::UnusedTypeInfo: 1557 DebugInfoVal = "unused-types"; 1558 break; 1559 case llvm::codegenoptions::NoDebugInfo: // default value 1560 DebugInfoVal = std::nullopt; 1561 break; 1562 case llvm::codegenoptions::LocTrackingOnly: // implied value 1563 DebugInfoVal = std::nullopt; 1564 break; 1565 } 1566 if (DebugInfoVal) 1567 GenerateArg(Consumer, OPT_debug_info_kind_EQ, *DebugInfoVal); 1568 1569 for (const auto &Prefix : Opts.DebugPrefixMap) 1570 GenerateArg(Consumer, OPT_fdebug_prefix_map_EQ, 1571 Prefix.first + "=" + Prefix.second); 1572 1573 for (const auto &Prefix : Opts.CoveragePrefixMap) 1574 GenerateArg(Consumer, OPT_fcoverage_prefix_map_EQ, 1575 Prefix.first + "=" + Prefix.second); 1576 1577 if (Opts.NewStructPathTBAA) 1578 GenerateArg(Consumer, OPT_new_struct_path_tbaa); 1579 1580 if (Opts.OptimizeSize == 1) 1581 GenerateArg(Consumer, OPT_O, "s"); 1582 else if (Opts.OptimizeSize == 2) 1583 GenerateArg(Consumer, OPT_O, "z"); 1584 1585 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1586 // -ffreestanding. We'll consider that when generating them. 1587 1588 // NoBuiltinFuncs are generated by LangOptions. 1589 1590 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1591 GenerateArg(Consumer, OPT_funroll_loops); 1592 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1593 GenerateArg(Consumer, OPT_fno_unroll_loops); 1594 1595 if (!Opts.BinutilsVersion.empty()) 1596 GenerateArg(Consumer, OPT_fbinutils_version_EQ, Opts.BinutilsVersion); 1597 1598 if (Opts.DebugNameTable == 1599 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1600 GenerateArg(Consumer, OPT_ggnu_pubnames); 1601 else if (Opts.DebugNameTable == 1602 static_cast<unsigned>( 1603 llvm::DICompileUnit::DebugNameTableKind::Default)) 1604 GenerateArg(Consumer, OPT_gpubnames); 1605 1606 if (Opts.DebugTemplateAlias) 1607 GenerateArg(Consumer, OPT_gtemplate_alias); 1608 1609 auto TNK = Opts.getDebugSimpleTemplateNames(); 1610 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) { 1611 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple) 1612 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "simple"); 1613 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled) 1614 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "mangled"); 1615 } 1616 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1617 // it or PGOUseInstrumentor. 1618 1619 if (Opts.TimePasses) { 1620 if (Opts.TimePassesPerRun) 1621 GenerateArg(Consumer, OPT_ftime_report_EQ, "per-pass-run"); 1622 else 1623 GenerateArg(Consumer, OPT_ftime_report); 1624 } 1625 1626 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1627 GenerateArg(Consumer, OPT_flto_EQ, "full"); 1628 1629 if (Opts.PrepareForThinLTO) 1630 GenerateArg(Consumer, OPT_flto_EQ, "thin"); 1631 1632 if (!Opts.ThinLTOIndexFile.empty()) 1633 GenerateArg(Consumer, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile); 1634 1635 if (Opts.SaveTempsFilePrefix == OutputFile) 1636 GenerateArg(Consumer, OPT_save_temps_EQ, "obj"); 1637 1638 StringRef MemProfileBasename("memprof.profraw"); 1639 if (!Opts.MemoryProfileOutput.empty()) { 1640 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1641 GenerateArg(Consumer, OPT_fmemory_profile); 1642 } else { 1643 size_t ArgLength = 1644 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1645 GenerateArg(Consumer, OPT_fmemory_profile_EQ, 1646 Opts.MemoryProfileOutput.substr(0, ArgLength)); 1647 } 1648 } 1649 1650 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1651 GenerateArg(Consumer, OPT_coverage_version_EQ, 1652 StringRef(Opts.CoverageVersion, 4)); 1653 1654 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1655 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1656 // won't be generated.) 1657 1658 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1659 std::string InstrBundle = 1660 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1661 if (!InstrBundle.empty()) 1662 GenerateArg(Consumer, OPT_fxray_instrumentation_bundle, InstrBundle); 1663 } 1664 1665 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1666 GenerateArg(Consumer, OPT_fcf_protection_EQ, "full"); 1667 else if (Opts.CFProtectionReturn) 1668 GenerateArg(Consumer, OPT_fcf_protection_EQ, "return"); 1669 else if (Opts.CFProtectionBranch) 1670 GenerateArg(Consumer, OPT_fcf_protection_EQ, "branch"); 1671 1672 if (Opts.FunctionReturnThunks) 1673 GenerateArg(Consumer, OPT_mfunction_return_EQ, "thunk-extern"); 1674 1675 for (const auto &F : Opts.LinkBitcodeFiles) { 1676 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1677 F.PropagateAttrs && F.Internalize; 1678 GenerateArg(Consumer, 1679 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1680 F.Filename); 1681 } 1682 1683 if (Opts.EmulatedTLS) 1684 GenerateArg(Consumer, OPT_femulated_tls); 1685 1686 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1687 GenerateArg(Consumer, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str()); 1688 1689 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1690 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1691 GenerateArg(Consumer, OPT_fdenormal_fp_math_f32_EQ, 1692 Opts.FP32DenormalMode.str()); 1693 1694 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1695 OptSpecifier Opt = 1696 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1697 GenerateArg(Consumer, Opt); 1698 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1699 OptSpecifier Opt = 1700 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1701 GenerateArg(Consumer, Opt); 1702 } 1703 1704 if (Opts.EnableAIXExtendedAltivecABI) 1705 GenerateArg(Consumer, OPT_mabi_EQ_vec_extabi); 1706 1707 if (Opts.XCOFFReadOnlyPointers) 1708 GenerateArg(Consumer, OPT_mxcoff_roptr); 1709 1710 if (!Opts.OptRecordPasses.empty()) 1711 GenerateArg(Consumer, OPT_opt_record_passes, Opts.OptRecordPasses); 1712 1713 if (!Opts.OptRecordFormat.empty()) 1714 GenerateArg(Consumer, OPT_opt_record_format, Opts.OptRecordFormat); 1715 1716 GenerateOptimizationRemark(Consumer, OPT_Rpass_EQ, "pass", 1717 Opts.OptimizationRemark); 1718 1719 GenerateOptimizationRemark(Consumer, OPT_Rpass_missed_EQ, "pass-missed", 1720 Opts.OptimizationRemarkMissed); 1721 1722 GenerateOptimizationRemark(Consumer, OPT_Rpass_analysis_EQ, "pass-analysis", 1723 Opts.OptimizationRemarkAnalysis); 1724 1725 GenerateArg(Consumer, OPT_fdiagnostics_hotness_threshold_EQ, 1726 Opts.DiagnosticsHotnessThreshold 1727 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1728 : "auto"); 1729 1730 GenerateArg(Consumer, OPT_fdiagnostics_misexpect_tolerance_EQ, 1731 Twine(*Opts.DiagnosticsMisExpectTolerance)); 1732 1733 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1734 GenerateArg(Consumer, OPT_fsanitize_recover_EQ, Sanitizer); 1735 1736 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1737 GenerateArg(Consumer, OPT_fsanitize_trap_EQ, Sanitizer); 1738 1739 if (!Opts.EmitVersionIdentMetadata) 1740 GenerateArg(Consumer, OPT_Qn); 1741 1742 switch (Opts.FiniteLoops) { 1743 case CodeGenOptions::FiniteLoopsKind::Language: 1744 break; 1745 case CodeGenOptions::FiniteLoopsKind::Always: 1746 GenerateArg(Consumer, OPT_ffinite_loops); 1747 break; 1748 case CodeGenOptions::FiniteLoopsKind::Never: 1749 GenerateArg(Consumer, OPT_fno_finite_loops); 1750 break; 1751 } 1752 } 1753 1754 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1755 InputKind IK, 1756 DiagnosticsEngine &Diags, 1757 const llvm::Triple &T, 1758 const std::string &OutputFile, 1759 const LangOptions &LangOptsRef) { 1760 unsigned NumErrorsBefore = Diags.getNumErrors(); 1761 1762 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1763 // TODO: This could be done in Driver 1764 unsigned MaxOptLevel = 3; 1765 if (OptimizationLevel > MaxOptLevel) { 1766 // If the optimization level is not supported, fall back on the default 1767 // optimization 1768 Diags.Report(diag::warn_drv_optimization_value) 1769 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1770 OptimizationLevel = MaxOptLevel; 1771 } 1772 Opts.OptimizationLevel = OptimizationLevel; 1773 1774 // The key paths of codegen options defined in Options.td start with 1775 // "CodeGenOpts.". Let's provide the expected variable name and type. 1776 CodeGenOptions &CodeGenOpts = Opts; 1777 // Some codegen options depend on language options. Let's provide the expected 1778 // variable name and type. 1779 const LangOptions *LangOpts = &LangOptsRef; 1780 1781 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1782 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1783 #include "clang/Driver/Options.inc" 1784 #undef CODEGEN_OPTION_WITH_MARSHALLING 1785 1786 // At O0 we want to fully disable inlining outside of cases marked with 1787 // 'alwaysinline' that are required for correctness. 1788 if (Opts.OptimizationLevel == 0) { 1789 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1790 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1791 options::OPT_finline_hint_functions, 1792 options::OPT_fno_inline_functions, 1793 options::OPT_fno_inline)) { 1794 // Explicit inlining flags can disable some or all inlining even at 1795 // optimization levels above zero. 1796 if (A->getOption().matches(options::OPT_finline_functions)) 1797 Opts.setInlining(CodeGenOptions::NormalInlining); 1798 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1799 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1800 else 1801 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1802 } else { 1803 Opts.setInlining(CodeGenOptions::NormalInlining); 1804 } 1805 1806 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1807 // -fdirect-access-external-data. 1808 Opts.DirectAccessExternalData = 1809 Args.hasArg(OPT_fdirect_access_external_data) || 1810 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1811 LangOpts->PICLevel == 0); 1812 1813 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1814 unsigned Val = 1815 llvm::StringSwitch<unsigned>(A->getValue()) 1816 .Case("line-tables-only", llvm::codegenoptions::DebugLineTablesOnly) 1817 .Case("line-directives-only", 1818 llvm::codegenoptions::DebugDirectivesOnly) 1819 .Case("constructor", llvm::codegenoptions::DebugInfoConstructor) 1820 .Case("limited", llvm::codegenoptions::LimitedDebugInfo) 1821 .Case("standalone", llvm::codegenoptions::FullDebugInfo) 1822 .Case("unused-types", llvm::codegenoptions::UnusedTypeInfo) 1823 .Default(~0U); 1824 if (Val == ~0U) 1825 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1826 << A->getValue(); 1827 else 1828 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val)); 1829 } 1830 1831 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1832 // constructor homing, and vice versa for -fno-use-ctor-homing. 1833 if (const Arg *A = 1834 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1835 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1836 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo) 1837 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor); 1838 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1839 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor) 1840 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo); 1841 } 1842 1843 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1844 auto Split = StringRef(Arg).split('='); 1845 Opts.DebugPrefixMap.emplace_back(Split.first, Split.second); 1846 } 1847 1848 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1849 auto Split = StringRef(Arg).split('='); 1850 Opts.CoveragePrefixMap.emplace_back(Split.first, Split.second); 1851 } 1852 1853 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1854 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1855 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1856 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1857 1858 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1859 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1860 Opts.EmitCallSiteInfo = true; 1861 1862 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1863 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1864 << Opts.DIBugsReportFilePath; 1865 Opts.DIBugsReportFilePath = ""; 1866 } 1867 1868 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1869 Args.hasArg(OPT_new_struct_path_tbaa); 1870 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1871 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1872 if (Opts.SimplifyLibCalls) 1873 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1874 Opts.UnrollLoops = 1875 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1876 (Opts.OptimizationLevel > 1)); 1877 Opts.BinutilsVersion = 1878 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1879 1880 Opts.DebugTemplateAlias = Args.hasArg(OPT_gtemplate_alias); 1881 1882 Opts.DebugNameTable = static_cast<unsigned>( 1883 Args.hasArg(OPT_ggnu_pubnames) 1884 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1885 : Args.hasArg(OPT_gpubnames) 1886 ? llvm::DICompileUnit::DebugNameTableKind::Default 1887 : llvm::DICompileUnit::DebugNameTableKind::None); 1888 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1889 StringRef Value = A->getValue(); 1890 if (Value != "simple" && Value != "mangled") 1891 Diags.Report(diag::err_drv_unsupported_option_argument) 1892 << A->getSpelling() << A->getValue(); 1893 Opts.setDebugSimpleTemplateNames( 1894 StringRef(A->getValue()) == "simple" 1895 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple 1896 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled); 1897 } 1898 1899 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1900 Opts.TimePasses = true; 1901 1902 // -ftime-report= is only for new pass manager. 1903 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1904 StringRef Val = A->getValue(); 1905 if (Val == "per-pass") 1906 Opts.TimePassesPerRun = false; 1907 else if (Val == "per-pass-run") 1908 Opts.TimePassesPerRun = true; 1909 else 1910 Diags.Report(diag::err_drv_invalid_value) 1911 << A->getAsString(Args) << A->getValue(); 1912 } 1913 } 1914 1915 Opts.PrepareForLTO = false; 1916 Opts.PrepareForThinLTO = false; 1917 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1918 Opts.PrepareForLTO = true; 1919 StringRef S = A->getValue(); 1920 if (S == "thin") 1921 Opts.PrepareForThinLTO = true; 1922 else if (S != "full") 1923 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1924 if (Args.hasArg(OPT_funified_lto)) 1925 Opts.PrepareForThinLTO = true; 1926 } 1927 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1928 if (IK.getLanguage() != Language::LLVM_IR) 1929 Diags.Report(diag::err_drv_argument_only_allowed_with) 1930 << A->getAsString(Args) << "-x ir"; 1931 Opts.ThinLTOIndexFile = 1932 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1933 } 1934 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1935 Opts.SaveTempsFilePrefix = 1936 llvm::StringSwitch<std::string>(A->getValue()) 1937 .Case("obj", OutputFile) 1938 .Default(llvm::sys::path::filename(OutputFile).str()); 1939 1940 // The memory profile runtime appends the pid to make this name more unique. 1941 const char *MemProfileBasename = "memprof.profraw"; 1942 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1943 SmallString<128> Path( 1944 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1945 llvm::sys::path::append(Path, MemProfileBasename); 1946 Opts.MemoryProfileOutput = std::string(Path); 1947 } else if (Args.hasArg(OPT_fmemory_profile)) 1948 Opts.MemoryProfileOutput = MemProfileBasename; 1949 1950 memcpy(Opts.CoverageVersion, "408*", 4); 1951 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) { 1952 if (Args.hasArg(OPT_coverage_version_EQ)) { 1953 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1954 if (CoverageVersion.size() != 4) { 1955 Diags.Report(diag::err_drv_invalid_value) 1956 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1957 << CoverageVersion; 1958 } else { 1959 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1960 } 1961 } 1962 } 1963 // FIXME: For backend options that are not yet recorded as function 1964 // attributes in the IR, keep track of them so we can embed them in a 1965 // separate data section and use them when building the bitcode. 1966 for (const auto &A : Args) { 1967 // Do not encode output and input. 1968 if (A->getOption().getID() == options::OPT_o || 1969 A->getOption().getID() == options::OPT_INPUT || 1970 A->getOption().getID() == options::OPT_x || 1971 A->getOption().getID() == options::OPT_fembed_bitcode || 1972 A->getOption().matches(options::OPT_W_Group)) 1973 continue; 1974 ArgStringList ASL; 1975 A->render(Args, ASL); 1976 for (const auto &arg : ASL) { 1977 StringRef ArgStr(arg); 1978 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1979 // using \00 to separate each commandline options. 1980 Opts.CmdArgs.push_back('\0'); 1981 } 1982 } 1983 1984 auto XRayInstrBundles = 1985 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1986 if (XRayInstrBundles.empty()) 1987 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1988 else 1989 for (const auto &A : XRayInstrBundles) 1990 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1991 Diags, Opts.XRayInstrumentationBundle); 1992 1993 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1994 StringRef Name = A->getValue(); 1995 if (Name == "full") { 1996 Opts.CFProtectionReturn = 1; 1997 Opts.CFProtectionBranch = 1; 1998 } else if (Name == "return") 1999 Opts.CFProtectionReturn = 1; 2000 else if (Name == "branch") 2001 Opts.CFProtectionBranch = 1; 2002 else if (Name != "none") 2003 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2004 } 2005 2006 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 2007 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 2008 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 2009 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 2010 .Default(llvm::FunctionReturnThunksKind::Invalid); 2011 // SystemZ might want to add support for "expolines." 2012 if (!T.isX86()) 2013 Diags.Report(diag::err_drv_argument_not_allowed_with) 2014 << A->getSpelling() << T.getTriple(); 2015 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 2016 Diags.Report(diag::err_drv_invalid_value) 2017 << A->getAsString(Args) << A->getValue(); 2018 else if (Val == llvm::FunctionReturnThunksKind::Extern && 2019 Args.getLastArgValue(OPT_mcmodel_EQ) == "large") 2020 Diags.Report(diag::err_drv_argument_not_allowed_with) 2021 << A->getAsString(Args) 2022 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 2023 else 2024 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 2025 } 2026 2027 for (auto *A : 2028 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 2029 CodeGenOptions::BitcodeFileToLink F; 2030 F.Filename = A->getValue(); 2031 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 2032 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 2033 // When linking CUDA bitcode, propagate function attributes so that 2034 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 2035 F.PropagateAttrs = true; 2036 F.Internalize = true; 2037 } 2038 Opts.LinkBitcodeFiles.push_back(F); 2039 } 2040 2041 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 2042 StringRef Val = A->getValue(); 2043 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 2044 Opts.FP32DenormalMode = Opts.FPDenormalMode; 2045 if (!Opts.FPDenormalMode.isValid()) 2046 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2047 } 2048 2049 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 2050 StringRef Val = A->getValue(); 2051 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 2052 if (!Opts.FP32DenormalMode.isValid()) 2053 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2054 } 2055 2056 // X86_32 has -fppc-struct-return and -freg-struct-return. 2057 // PPC32 has -maix-struct-return and -msvr4-struct-return. 2058 if (Arg *A = 2059 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 2060 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 2061 // TODO: We might want to consider enabling these options on AIX in the 2062 // future. 2063 if (T.isOSAIX()) 2064 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2065 << A->getSpelling() << T.str(); 2066 2067 const Option &O = A->getOption(); 2068 if (O.matches(OPT_fpcc_struct_return) || 2069 O.matches(OPT_maix_struct_return)) { 2070 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 2071 } else { 2072 assert(O.matches(OPT_freg_struct_return) || 2073 O.matches(OPT_msvr4_struct_return)); 2074 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 2075 } 2076 } 2077 2078 if (Arg *A = Args.getLastArg(OPT_mxcoff_roptr)) { 2079 if (!T.isOSAIX()) 2080 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2081 << A->getSpelling() << T.str(); 2082 2083 // Since the storage mapping class is specified per csect, 2084 // without using data sections, it is less effective to use read-only 2085 // pointers. Using read-only pointers may cause other RO variables in the 2086 // same csect to become RW when the linker acts upon `-bforceimprw`; 2087 // therefore, we require that separate data sections 2088 // are used when `-mxcoff-roptr` is in effect. We respect the setting of 2089 // data-sections since we have not found reasons to do otherwise that 2090 // overcome the user surprise of not respecting the setting. 2091 if (!Args.hasFlag(OPT_fdata_sections, OPT_fno_data_sections, false)) 2092 Diags.Report(diag::err_roptr_requires_data_sections); 2093 2094 Opts.XCOFFReadOnlyPointers = true; 2095 } 2096 2097 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 2098 if (!T.isOSAIX() || T.isPPC32()) 2099 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2100 << A->getSpelling() << T.str(); 2101 } 2102 2103 bool NeedLocTracking = false; 2104 2105 if (!Opts.OptRecordFile.empty()) 2106 NeedLocTracking = true; 2107 2108 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 2109 Opts.OptRecordPasses = A->getValue(); 2110 NeedLocTracking = true; 2111 } 2112 2113 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 2114 Opts.OptRecordFormat = A->getValue(); 2115 NeedLocTracking = true; 2116 } 2117 2118 Opts.OptimizationRemark = 2119 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 2120 2121 Opts.OptimizationRemarkMissed = 2122 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 2123 2124 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 2125 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 2126 2127 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 2128 Opts.OptimizationRemarkMissed.hasValidPattern() || 2129 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 2130 2131 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 2132 bool UsingProfile = 2133 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 2134 2135 if (Opts.DiagnosticsWithHotness && !UsingProfile && 2136 // An IR file will contain PGO as metadata 2137 IK.getLanguage() != Language::LLVM_IR) 2138 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2139 << "-fdiagnostics-show-hotness"; 2140 2141 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 2142 if (auto *arg = 2143 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 2144 auto ResultOrErr = 2145 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 2146 2147 if (!ResultOrErr) { 2148 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 2149 << "-fdiagnostics-hotness-threshold="; 2150 } else { 2151 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 2152 if ((!Opts.DiagnosticsHotnessThreshold || 2153 *Opts.DiagnosticsHotnessThreshold > 0) && 2154 !UsingProfile) 2155 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2156 << "-fdiagnostics-hotness-threshold="; 2157 } 2158 } 2159 2160 if (auto *arg = 2161 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2162 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2163 2164 if (!ResultOrErr) { 2165 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2166 << "-fdiagnostics-misexpect-tolerance="; 2167 } else { 2168 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2169 if ((!Opts.DiagnosticsMisExpectTolerance || 2170 *Opts.DiagnosticsMisExpectTolerance > 0) && 2171 !UsingProfile) 2172 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2173 << "-fdiagnostics-misexpect-tolerance="; 2174 } 2175 } 2176 2177 // If the user requested to use a sample profile for PGO, then the 2178 // backend will need to track source location information so the profile 2179 // can be incorporated into the IR. 2180 if (UsingSampleProfile) 2181 NeedLocTracking = true; 2182 2183 if (!Opts.StackUsageOutput.empty()) 2184 NeedLocTracking = true; 2185 2186 // If the user requested a flag that requires source locations available in 2187 // the backend, make sure that the backend tracks source location information. 2188 if (NeedLocTracking && 2189 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo) 2190 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly); 2191 2192 // Parse -fsanitize-recover= arguments. 2193 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2194 parseSanitizerKinds("-fsanitize-recover=", 2195 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2196 Opts.SanitizeRecover); 2197 parseSanitizerKinds("-fsanitize-trap=", 2198 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2199 Opts.SanitizeTrap); 2200 2201 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2202 2203 if (!LangOpts->CUDAIsDevice) 2204 parsePointerAuthOptions(Opts.PointerAuth, *LangOpts, T, Diags); 2205 2206 if (Args.hasArg(options::OPT_ffinite_loops)) 2207 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2208 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2209 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2210 2211 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2212 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2213 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2214 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2215 2216 return Diags.getNumErrors() == NumErrorsBefore; 2217 } 2218 2219 static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2220 ArgumentConsumer Consumer) { 2221 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2222 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2223 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2224 #include "clang/Driver/Options.inc" 2225 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2226 2227 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2228 GenerateArg(Consumer, OPT_show_includes); 2229 2230 for (const auto &Dep : Opts.ExtraDeps) { 2231 switch (Dep.second) { 2232 case EDK_SanitizeIgnorelist: 2233 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2234 continue; 2235 case EDK_ModuleFile: 2236 // Module file arguments are generated from FrontendOptions and 2237 // HeaderSearchOptions. 2238 continue; 2239 case EDK_ProfileList: 2240 // Profile list arguments are generated from LanguageOptions via the 2241 // marshalling infrastructure. 2242 continue; 2243 case EDK_DepFileEntry: 2244 GenerateArg(Consumer, OPT_fdepfile_entry, Dep.first); 2245 break; 2246 } 2247 } 2248 } 2249 2250 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2251 ArgList &Args, DiagnosticsEngine &Diags, 2252 frontend::ActionKind Action, 2253 bool ShowLineMarkers) { 2254 unsigned NumErrorsBefore = Diags.getNumErrors(); 2255 2256 DependencyOutputOptions &DependencyOutputOpts = Opts; 2257 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2258 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2259 #include "clang/Driver/Options.inc" 2260 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2261 2262 if (Args.hasArg(OPT_show_includes)) { 2263 // Writing both /showIncludes and preprocessor output to stdout 2264 // would produce interleaved output, so use stderr for /showIncludes. 2265 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2266 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2267 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2268 else 2269 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2270 } else { 2271 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2272 } 2273 2274 // Add sanitizer ignorelists as extra dependencies. 2275 // They won't be discovered by the regular preprocessor, so 2276 // we let make / ninja to know about this implicit dependency. 2277 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2278 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2279 StringRef Val = A->getValue(); 2280 if (!Val.contains('=')) 2281 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2282 } 2283 if (Opts.IncludeSystemHeaders) { 2284 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2285 StringRef Val = A->getValue(); 2286 if (!Val.contains('=')) 2287 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2288 } 2289 } 2290 } 2291 2292 // -fprofile-list= dependencies. 2293 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2294 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2295 2296 // Propagate the extra dependencies. 2297 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2298 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2299 2300 // Only the -fmodule-file=<file> form. 2301 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2302 StringRef Val = A->getValue(); 2303 if (!Val.contains('=')) 2304 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2305 } 2306 2307 // Check for invalid combinations of header-include-format 2308 // and header-include-filtering. 2309 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2310 Opts.HeaderIncludeFiltering != HIFIL_None) || 2311 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2312 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2313 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2314 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2315 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2316 2317 return Diags.getNumErrors() == NumErrorsBefore; 2318 } 2319 2320 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2321 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2322 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2323 // Support both clang's -f[no-]color-diagnostics and gcc's 2324 // -f[no-]diagnostics-colors[=never|always|auto]. 2325 enum { 2326 Colors_On, 2327 Colors_Off, 2328 Colors_Auto 2329 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2330 for (auto *A : Args) { 2331 const Option &O = A->getOption(); 2332 if (O.matches(options::OPT_fcolor_diagnostics)) { 2333 ShowColors = Colors_On; 2334 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2335 ShowColors = Colors_Off; 2336 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2337 StringRef Value(A->getValue()); 2338 if (Value == "always") 2339 ShowColors = Colors_On; 2340 else if (Value == "never") 2341 ShowColors = Colors_Off; 2342 else if (Value == "auto") 2343 ShowColors = Colors_Auto; 2344 } 2345 } 2346 return ShowColors == Colors_On || 2347 (ShowColors == Colors_Auto && 2348 llvm::sys::Process::StandardErrHasColors()); 2349 } 2350 2351 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2352 DiagnosticsEngine &Diags) { 2353 bool Success = true; 2354 for (const auto &Prefix : VerifyPrefixes) { 2355 // Every prefix must start with a letter and contain only alphanumeric 2356 // characters, hyphens, and underscores. 2357 auto BadChar = llvm::find_if(Prefix, [](char C) { 2358 return !isAlphanumeric(C) && C != '-' && C != '_'; 2359 }); 2360 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2361 Success = false; 2362 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2363 Diags.Report(diag::note_drv_verify_prefix_spelling); 2364 } 2365 } 2366 return Success; 2367 } 2368 2369 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2370 ArgumentConsumer Consumer) { 2371 const FileSystemOptions &FileSystemOpts = Opts; 2372 2373 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2374 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2375 #include "clang/Driver/Options.inc" 2376 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2377 } 2378 2379 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2380 DiagnosticsEngine &Diags) { 2381 unsigned NumErrorsBefore = Diags.getNumErrors(); 2382 2383 FileSystemOptions &FileSystemOpts = Opts; 2384 2385 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2386 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2387 #include "clang/Driver/Options.inc" 2388 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2389 2390 return Diags.getNumErrors() == NumErrorsBefore; 2391 } 2392 2393 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2394 ArgumentConsumer Consumer) { 2395 const MigratorOptions &MigratorOpts = Opts; 2396 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2397 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2398 #include "clang/Driver/Options.inc" 2399 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2400 } 2401 2402 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2403 DiagnosticsEngine &Diags) { 2404 unsigned NumErrorsBefore = Diags.getNumErrors(); 2405 2406 MigratorOptions &MigratorOpts = Opts; 2407 2408 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2409 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2410 #include "clang/Driver/Options.inc" 2411 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2412 2413 return Diags.getNumErrors() == NumErrorsBefore; 2414 } 2415 2416 void CompilerInvocationBase::GenerateDiagnosticArgs( 2417 const DiagnosticOptions &Opts, ArgumentConsumer Consumer, 2418 bool DefaultDiagColor) { 2419 const DiagnosticOptions *DiagnosticOpts = &Opts; 2420 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2421 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2422 #include "clang/Driver/Options.inc" 2423 #undef DIAG_OPTION_WITH_MARSHALLING 2424 2425 if (!Opts.DiagnosticSerializationFile.empty()) 2426 GenerateArg(Consumer, OPT_diagnostic_serialized_file, 2427 Opts.DiagnosticSerializationFile); 2428 2429 if (Opts.ShowColors) 2430 GenerateArg(Consumer, OPT_fcolor_diagnostics); 2431 2432 if (Opts.VerifyDiagnostics && 2433 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2434 GenerateArg(Consumer, OPT_verify); 2435 2436 for (const auto &Prefix : Opts.VerifyPrefixes) 2437 if (Prefix != "expected") 2438 GenerateArg(Consumer, OPT_verify_EQ, Prefix); 2439 2440 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2441 if (VIU == DiagnosticLevelMask::None) { 2442 // This is the default, don't generate anything. 2443 } else if (VIU == DiagnosticLevelMask::All) { 2444 GenerateArg(Consumer, OPT_verify_ignore_unexpected); 2445 } else { 2446 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2447 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "note"); 2448 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2449 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "remark"); 2450 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2451 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "warning"); 2452 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2453 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "error"); 2454 } 2455 2456 for (const auto &Warning : Opts.Warnings) { 2457 // This option is automatically generated from UndefPrefixes. 2458 if (Warning == "undef-prefix") 2459 continue; 2460 // This option is automatically generated from CheckConstexprFunctionBodies. 2461 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr") 2462 continue; 2463 Consumer(StringRef("-W") + Warning); 2464 } 2465 2466 for (const auto &Remark : Opts.Remarks) { 2467 // These arguments are generated from OptimizationRemark fields of 2468 // CodeGenOptions. 2469 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2470 "pass-analysis", "no-pass-analysis", 2471 "pass-missed", "no-pass-missed"}; 2472 if (llvm::is_contained(IgnoredRemarks, Remark)) 2473 continue; 2474 2475 Consumer(StringRef("-R") + Remark); 2476 } 2477 } 2478 2479 std::unique_ptr<DiagnosticOptions> 2480 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2481 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2482 unsigned MissingArgIndex, MissingArgCount; 2483 InputArgList Args = getDriverOptTable().ParseArgs( 2484 Argv.slice(1), MissingArgIndex, MissingArgCount); 2485 2486 bool ShowColors = true; 2487 if (std::optional<std::string> NoColor = 2488 llvm::sys::Process::GetEnv("NO_COLOR"); 2489 NoColor && !NoColor->empty()) { 2490 // If the user set the NO_COLOR environment variable, we'll honor that 2491 // unless the command line overrides it. 2492 ShowColors = false; 2493 } 2494 2495 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2496 // Any errors that would be diagnosed here will also be diagnosed later, 2497 // when the DiagnosticsEngine actually exists. 2498 (void)ParseDiagnosticArgs(*DiagOpts, Args, /*Diags=*/nullptr, ShowColors); 2499 return DiagOpts; 2500 } 2501 2502 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2503 DiagnosticsEngine *Diags, 2504 bool DefaultDiagColor) { 2505 std::optional<DiagnosticsEngine> IgnoringDiags; 2506 if (!Diags) { 2507 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2508 new IgnoringDiagConsumer()); 2509 Diags = &*IgnoringDiags; 2510 } 2511 2512 unsigned NumErrorsBefore = Diags->getNumErrors(); 2513 2514 // The key paths of diagnostic options defined in Options.td start with 2515 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2516 DiagnosticOptions *DiagnosticOpts = &Opts; 2517 2518 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2519 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__) 2520 #include "clang/Driver/Options.inc" 2521 #undef DIAG_OPTION_WITH_MARSHALLING 2522 2523 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2524 2525 if (Arg *A = 2526 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2527 Opts.DiagnosticSerializationFile = A->getValue(); 2528 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2529 2530 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2531 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2532 if (Args.hasArg(OPT_verify)) 2533 Opts.VerifyPrefixes.push_back("expected"); 2534 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2535 // then sort it to prepare for fast lookup using std::binary_search. 2536 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2537 Opts.VerifyDiagnostics = false; 2538 else 2539 llvm::sort(Opts.VerifyPrefixes); 2540 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2541 parseDiagnosticLevelMask( 2542 "-verify-ignore-unexpected=", 2543 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2544 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2545 DiagMask = DiagnosticLevelMask::All; 2546 Opts.setVerifyIgnoreUnexpected(DiagMask); 2547 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2548 Diags->Report(diag::warn_ignoring_ftabstop_value) 2549 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2550 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2551 } 2552 2553 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2554 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2555 2556 return Diags->getNumErrors() == NumErrorsBefore; 2557 } 2558 2559 /// Parse the argument to the -ftest-module-file-extension 2560 /// command-line argument. 2561 /// 2562 /// \returns true on error, false on success. 2563 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2564 std::string &BlockName, 2565 unsigned &MajorVersion, 2566 unsigned &MinorVersion, 2567 bool &Hashed, 2568 std::string &UserInfo) { 2569 SmallVector<StringRef, 5> Args; 2570 Arg.split(Args, ':', 5); 2571 if (Args.size() < 5) 2572 return true; 2573 2574 BlockName = std::string(Args[0]); 2575 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2576 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2577 if (Args[3].getAsInteger(2, Hashed)) return true; 2578 if (Args.size() > 4) 2579 UserInfo = std::string(Args[4]); 2580 return false; 2581 } 2582 2583 /// Return a table that associates command line option specifiers with the 2584 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2585 /// intentionally missing, as this case is handled separately from other 2586 /// frontend options. 2587 static const auto &getFrontendActionTable() { 2588 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2589 {frontend::ASTDeclList, OPT_ast_list}, 2590 2591 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2592 {frontend::ASTDump, OPT_ast_dump_all}, 2593 {frontend::ASTDump, OPT_ast_dump_EQ}, 2594 {frontend::ASTDump, OPT_ast_dump}, 2595 {frontend::ASTDump, OPT_ast_dump_lookups}, 2596 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2597 2598 {frontend::ASTPrint, OPT_ast_print}, 2599 {frontend::ASTView, OPT_ast_view}, 2600 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2601 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2602 {frontend::DumpTokens, OPT_dump_tokens}, 2603 {frontend::EmitAssembly, OPT_S}, 2604 {frontend::EmitBC, OPT_emit_llvm_bc}, 2605 {frontend::EmitCIR, OPT_emit_cir}, 2606 {frontend::EmitHTML, OPT_emit_html}, 2607 {frontend::EmitLLVM, OPT_emit_llvm}, 2608 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2609 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2610 {frontend::EmitObj, OPT_emit_obj}, 2611 {frontend::ExtractAPI, OPT_extract_api}, 2612 2613 {frontend::FixIt, OPT_fixit_EQ}, 2614 {frontend::FixIt, OPT_fixit}, 2615 2616 {frontend::GenerateModule, OPT_emit_module}, 2617 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2618 {frontend::GenerateReducedModuleInterface, 2619 OPT_emit_reduced_module_interface}, 2620 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2621 {frontend::GeneratePCH, OPT_emit_pch}, 2622 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2623 {frontend::InitOnly, OPT_init_only}, 2624 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2625 {frontend::ModuleFileInfo, OPT_module_file_info}, 2626 {frontend::VerifyPCH, OPT_verify_pch}, 2627 {frontend::PrintPreamble, OPT_print_preamble}, 2628 {frontend::PrintPreprocessedInput, OPT_E}, 2629 {frontend::TemplightDump, OPT_templight_dump}, 2630 {frontend::RewriteMacros, OPT_rewrite_macros}, 2631 {frontend::RewriteObjC, OPT_rewrite_objc}, 2632 {frontend::RewriteTest, OPT_rewrite_test}, 2633 {frontend::RunAnalysis, OPT_analyze}, 2634 {frontend::MigrateSource, OPT_migrate}, 2635 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2636 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2637 OPT_print_dependency_directives_minimized_source}, 2638 }; 2639 2640 return Table; 2641 } 2642 2643 /// Maps command line option to frontend action. 2644 static std::optional<frontend::ActionKind> 2645 getFrontendAction(OptSpecifier &Opt) { 2646 for (const auto &ActionOpt : getFrontendActionTable()) 2647 if (ActionOpt.second == Opt.getID()) 2648 return ActionOpt.first; 2649 2650 return std::nullopt; 2651 } 2652 2653 /// Maps frontend action to command line option. 2654 static std::optional<OptSpecifier> 2655 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2656 for (const auto &ActionOpt : getFrontendActionTable()) 2657 if (ActionOpt.first == ProgramAction) 2658 return OptSpecifier(ActionOpt.second); 2659 2660 return std::nullopt; 2661 } 2662 2663 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2664 ArgumentConsumer Consumer, bool IsHeader) { 2665 const FrontendOptions &FrontendOpts = Opts; 2666 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2667 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2668 #include "clang/Driver/Options.inc" 2669 #undef FRONTEND_OPTION_WITH_MARSHALLING 2670 2671 std::optional<OptSpecifier> ProgramActionOpt = 2672 getProgramActionOpt(Opts.ProgramAction); 2673 2674 // Generating a simple flag covers most frontend actions. 2675 std::function<void()> GenerateProgramAction = [&]() { 2676 GenerateArg(Consumer, *ProgramActionOpt); 2677 }; 2678 2679 if (!ProgramActionOpt) { 2680 // PluginAction is the only program action handled separately. 2681 assert(Opts.ProgramAction == frontend::PluginAction && 2682 "Frontend action without option."); 2683 GenerateProgramAction = [&]() { 2684 GenerateArg(Consumer, OPT_plugin, Opts.ActionName); 2685 }; 2686 } 2687 2688 // FIXME: Simplify the complex 'AST dump' command line. 2689 if (Opts.ProgramAction == frontend::ASTDump) { 2690 GenerateProgramAction = [&]() { 2691 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2692 // marshalling infrastructure. 2693 2694 if (Opts.ASTDumpFormat != ADOF_Default) { 2695 StringRef Format; 2696 switch (Opts.ASTDumpFormat) { 2697 case ADOF_Default: 2698 llvm_unreachable("Default AST dump format."); 2699 case ADOF_JSON: 2700 Format = "json"; 2701 break; 2702 } 2703 2704 if (Opts.ASTDumpAll) 2705 GenerateArg(Consumer, OPT_ast_dump_all_EQ, Format); 2706 if (Opts.ASTDumpDecls) 2707 GenerateArg(Consumer, OPT_ast_dump_EQ, Format); 2708 } else { 2709 if (Opts.ASTDumpAll) 2710 GenerateArg(Consumer, OPT_ast_dump_all); 2711 if (Opts.ASTDumpDecls) 2712 GenerateArg(Consumer, OPT_ast_dump); 2713 } 2714 }; 2715 } 2716 2717 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2718 GenerateProgramAction = [&]() { 2719 GenerateArg(Consumer, OPT_fixit_EQ, Opts.FixItSuffix); 2720 }; 2721 } 2722 2723 GenerateProgramAction(); 2724 2725 for (const auto &PluginArgs : Opts.PluginArgs) { 2726 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2727 for (const auto &PluginArg : PluginArgs.second) 2728 denormalizeString(Consumer, 2729 Opt.getPrefix() + Opt.getName() + PluginArgs.first, 2730 Opt.getKind(), 0, PluginArg); 2731 } 2732 2733 for (const auto &Ext : Opts.ModuleFileExtensions) 2734 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2735 GenerateArg(Consumer, OPT_ftest_module_file_extension_EQ, TestExt->str()); 2736 2737 if (!Opts.CodeCompletionAt.FileName.empty()) 2738 GenerateArg(Consumer, OPT_code_completion_at, 2739 Opts.CodeCompletionAt.ToString()); 2740 2741 for (const auto &Plugin : Opts.Plugins) 2742 GenerateArg(Consumer, OPT_load, Plugin); 2743 2744 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2745 2746 for (const auto &ModuleFile : Opts.ModuleFiles) 2747 GenerateArg(Consumer, OPT_fmodule_file, ModuleFile); 2748 2749 if (Opts.AuxTargetCPU) 2750 GenerateArg(Consumer, OPT_aux_target_cpu, *Opts.AuxTargetCPU); 2751 2752 if (Opts.AuxTargetFeatures) 2753 for (const auto &Feature : *Opts.AuxTargetFeatures) 2754 GenerateArg(Consumer, OPT_aux_target_feature, Feature); 2755 2756 { 2757 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2758 StringRef ModuleMap = 2759 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2760 StringRef HeaderUnit = ""; 2761 switch (Opts.DashX.getHeaderUnitKind()) { 2762 case InputKind::HeaderUnit_None: 2763 break; 2764 case InputKind::HeaderUnit_User: 2765 HeaderUnit = "-user"; 2766 break; 2767 case InputKind::HeaderUnit_System: 2768 HeaderUnit = "-system"; 2769 break; 2770 case InputKind::HeaderUnit_Abs: 2771 HeaderUnit = "-header-unit"; 2772 break; 2773 } 2774 StringRef Header = IsHeader ? "-header" : ""; 2775 2776 StringRef Lang; 2777 switch (Opts.DashX.getLanguage()) { 2778 case Language::C: 2779 Lang = "c"; 2780 break; 2781 case Language::OpenCL: 2782 Lang = "cl"; 2783 break; 2784 case Language::OpenCLCXX: 2785 Lang = "clcpp"; 2786 break; 2787 case Language::CUDA: 2788 Lang = "cuda"; 2789 break; 2790 case Language::HIP: 2791 Lang = "hip"; 2792 break; 2793 case Language::CXX: 2794 Lang = "c++"; 2795 break; 2796 case Language::ObjC: 2797 Lang = "objective-c"; 2798 break; 2799 case Language::ObjCXX: 2800 Lang = "objective-c++"; 2801 break; 2802 case Language::RenderScript: 2803 Lang = "renderscript"; 2804 break; 2805 case Language::Asm: 2806 Lang = "assembler-with-cpp"; 2807 break; 2808 case Language::Unknown: 2809 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2810 "Generating -x argument for unknown language (not precompiled)."); 2811 Lang = "ast"; 2812 break; 2813 case Language::LLVM_IR: 2814 Lang = "ir"; 2815 break; 2816 case Language::HLSL: 2817 Lang = "hlsl"; 2818 break; 2819 case Language::CIR: 2820 Lang = "cir"; 2821 break; 2822 } 2823 2824 GenerateArg(Consumer, OPT_x, 2825 Lang + HeaderUnit + Header + ModuleMap + Preprocessed); 2826 } 2827 2828 // OPT_INPUT has a unique class, generate it directly. 2829 for (const auto &Input : Opts.Inputs) 2830 Consumer(Input.getFile()); 2831 } 2832 2833 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2834 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2835 unsigned NumErrorsBefore = Diags.getNumErrors(); 2836 2837 FrontendOptions &FrontendOpts = Opts; 2838 2839 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2840 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2841 #include "clang/Driver/Options.inc" 2842 #undef FRONTEND_OPTION_WITH_MARSHALLING 2843 2844 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2845 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2846 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2847 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2848 assert(ProgramAction && "Option specifier not in Action_Group."); 2849 2850 if (ProgramAction == frontend::ASTDump && 2851 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2852 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2853 .CaseLower("default", ADOF_Default) 2854 .CaseLower("json", ADOF_JSON) 2855 .Default(std::numeric_limits<unsigned>::max()); 2856 2857 if (Val != std::numeric_limits<unsigned>::max()) 2858 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2859 else { 2860 Diags.Report(diag::err_drv_invalid_value) 2861 << A->getAsString(Args) << A->getValue(); 2862 Opts.ASTDumpFormat = ADOF_Default; 2863 } 2864 } 2865 2866 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2867 Opts.FixItSuffix = A->getValue(); 2868 2869 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2870 StringRef ArgStr = 2871 Args.hasArg(OPT_interface_stub_version_EQ) 2872 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2873 : "ifs-v1"; 2874 if (ArgStr == "experimental-yaml-elf-v1" || 2875 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2876 ArgStr == "experimental-tapi-elf-v1") { 2877 std::string ErrorMessage = 2878 "Invalid interface stub format: " + ArgStr.str() + 2879 " is deprecated."; 2880 Diags.Report(diag::err_drv_invalid_value) 2881 << "Must specify a valid interface stub format type, ie: " 2882 "-interface-stub-version=ifs-v1" 2883 << ErrorMessage; 2884 ProgramAction = frontend::ParseSyntaxOnly; 2885 } else if (!ArgStr.starts_with("ifs-")) { 2886 std::string ErrorMessage = 2887 "Invalid interface stub format: " + ArgStr.str() + "."; 2888 Diags.Report(diag::err_drv_invalid_value) 2889 << "Must specify a valid interface stub format type, ie: " 2890 "-interface-stub-version=ifs-v1" 2891 << ErrorMessage; 2892 ProgramAction = frontend::ParseSyntaxOnly; 2893 } 2894 } 2895 2896 Opts.ProgramAction = *ProgramAction; 2897 2898 // Catch common mistakes when multiple actions are specified for cc1 (e.g. 2899 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to 2900 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name 2901 // X ACTION), we suppress the error when the two actions are separated by 2902 // -main-file-name. 2903 // 2904 // As an exception, accept composable -ast-dump*. 2905 if (!A->getSpelling().starts_with("-ast-dump")) { 2906 const Arg *SavedAction = nullptr; 2907 for (const Arg *AA : 2908 Args.filtered(OPT_Action_Group, OPT_main_file_name)) { 2909 if (AA->getOption().matches(OPT_main_file_name)) { 2910 SavedAction = nullptr; 2911 } else if (!SavedAction) { 2912 SavedAction = AA; 2913 } else { 2914 if (!A->getOption().matches(OPT_ast_dump_EQ)) 2915 Diags.Report(diag::err_fe_invalid_multiple_actions) 2916 << SavedAction->getSpelling() << A->getSpelling(); 2917 break; 2918 } 2919 } 2920 } 2921 } 2922 2923 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2924 Opts.Plugins.emplace_back(A->getValue(0)); 2925 Opts.ProgramAction = frontend::PluginAction; 2926 Opts.ActionName = A->getValue(); 2927 } 2928 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2929 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2930 2931 for (const std::string &Arg : 2932 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2933 std::string BlockName; 2934 unsigned MajorVersion; 2935 unsigned MinorVersion; 2936 bool Hashed; 2937 std::string UserInfo; 2938 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2939 MinorVersion, Hashed, UserInfo)) { 2940 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2941 2942 continue; 2943 } 2944 2945 // Add the testing module file extension. 2946 Opts.ModuleFileExtensions.push_back( 2947 std::make_shared<TestModuleFileExtension>( 2948 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2949 } 2950 2951 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2952 Opts.CodeCompletionAt = 2953 ParsedSourceLocation::FromString(A->getValue()); 2954 if (Opts.CodeCompletionAt.FileName.empty()) 2955 Diags.Report(diag::err_drv_invalid_value) 2956 << A->getAsString(Args) << A->getValue(); 2957 } 2958 2959 Opts.Plugins = Args.getAllArgValues(OPT_load); 2960 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2961 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2962 // Only the -fmodule-file=<file> form. 2963 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2964 StringRef Val = A->getValue(); 2965 if (!Val.contains('=')) 2966 Opts.ModuleFiles.push_back(std::string(Val)); 2967 } 2968 2969 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2970 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2971 << "-emit-module"; 2972 if (Args.hasArg(OPT_fclangir) || Args.hasArg(OPT_emit_cir)) 2973 Opts.UseClangIRPipeline = true; 2974 2975 if (Args.hasArg(OPT_aux_target_cpu)) 2976 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2977 if (Args.hasArg(OPT_aux_target_feature)) 2978 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2979 2980 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2981 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2982 Diags.Report(diag::err_drv_argument_not_allowed_with) 2983 << "ARC migration" << "ObjC migration"; 2984 } 2985 2986 InputKind DashX(Language::Unknown); 2987 if (const Arg *A = Args.getLastArg(OPT_x)) { 2988 StringRef XValue = A->getValue(); 2989 2990 // Parse suffixes: 2991 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2992 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2993 bool Preprocessed = XValue.consume_back("-cpp-output"); 2994 bool ModuleMap = XValue.consume_back("-module-map"); 2995 // Detect and consume the header indicator. 2996 bool IsHeader = 2997 XValue != "precompiled-header" && XValue.consume_back("-header"); 2998 2999 // If we have c++-{user,system}-header, that indicates a header unit input 3000 // likewise, if the user put -fmodule-header together with a header with an 3001 // absolute path (header-unit-header). 3002 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 3003 if (IsHeader || Preprocessed) { 3004 if (XValue.consume_back("-header-unit")) 3005 HUK = InputKind::HeaderUnit_Abs; 3006 else if (XValue.consume_back("-system")) 3007 HUK = InputKind::HeaderUnit_System; 3008 else if (XValue.consume_back("-user")) 3009 HUK = InputKind::HeaderUnit_User; 3010 } 3011 3012 // The value set by this processing is an un-preprocessed source which is 3013 // not intended to be a module map or header unit. 3014 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 3015 HUK == InputKind::HeaderUnit_None; 3016 3017 // Principal languages. 3018 DashX = llvm::StringSwitch<InputKind>(XValue) 3019 .Case("c", Language::C) 3020 .Case("cl", Language::OpenCL) 3021 .Case("clcpp", Language::OpenCLCXX) 3022 .Case("cuda", Language::CUDA) 3023 .Case("hip", Language::HIP) 3024 .Case("c++", Language::CXX) 3025 .Case("objective-c", Language::ObjC) 3026 .Case("objective-c++", Language::ObjCXX) 3027 .Case("renderscript", Language::RenderScript) 3028 .Case("hlsl", Language::HLSL) 3029 .Default(Language::Unknown); 3030 3031 // "objc[++]-cpp-output" is an acceptable synonym for 3032 // "objective-c[++]-cpp-output". 3033 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 3034 HUK == InputKind::HeaderUnit_None) 3035 DashX = llvm::StringSwitch<InputKind>(XValue) 3036 .Case("objc", Language::ObjC) 3037 .Case("objc++", Language::ObjCXX) 3038 .Default(Language::Unknown); 3039 3040 // Some special cases cannot be combined with suffixes. 3041 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 3042 HUK == InputKind::HeaderUnit_None) 3043 DashX = llvm::StringSwitch<InputKind>(XValue) 3044 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 3045 .Case("assembler-with-cpp", Language::Asm) 3046 .Cases("ast", "pcm", "precompiled-header", 3047 InputKind(Language::Unknown, InputKind::Precompiled)) 3048 .Case("ir", Language::LLVM_IR) 3049 .Case("cir", Language::CIR) 3050 .Default(Language::Unknown); 3051 3052 if (DashX.isUnknown()) 3053 Diags.Report(diag::err_drv_invalid_value) 3054 << A->getAsString(Args) << A->getValue(); 3055 3056 if (Preprocessed) 3057 DashX = DashX.getPreprocessed(); 3058 // A regular header is considered mutually exclusive with a header unit. 3059 if (HUK != InputKind::HeaderUnit_None) { 3060 DashX = DashX.withHeaderUnit(HUK); 3061 IsHeaderFile = true; 3062 } else if (IsHeaderFile) 3063 DashX = DashX.getHeader(); 3064 if (ModuleMap) 3065 DashX = DashX.withFormat(InputKind::ModuleMap); 3066 } 3067 3068 // '-' is the default input if none is given. 3069 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 3070 Opts.Inputs.clear(); 3071 if (Inputs.empty()) 3072 Inputs.push_back("-"); 3073 3074 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 3075 Inputs.size() > 1) 3076 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 3077 3078 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 3079 InputKind IK = DashX; 3080 if (IK.isUnknown()) { 3081 IK = FrontendOptions::getInputKindForExtension( 3082 StringRef(Inputs[i]).rsplit('.').second); 3083 // FIXME: Warn on this? 3084 if (IK.isUnknown()) 3085 IK = Language::C; 3086 // FIXME: Remove this hack. 3087 if (i == 0) 3088 DashX = IK; 3089 } 3090 3091 bool IsSystem = false; 3092 3093 // The -emit-module action implicitly takes a module map. 3094 if (Opts.ProgramAction == frontend::GenerateModule && 3095 IK.getFormat() == InputKind::Source) { 3096 IK = IK.withFormat(InputKind::ModuleMap); 3097 IsSystem = Opts.IsSystemModule; 3098 } 3099 3100 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 3101 } 3102 3103 Opts.DashX = DashX; 3104 3105 return Diags.getNumErrors() == NumErrorsBefore; 3106 } 3107 3108 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 3109 void *MainAddr) { 3110 std::string ClangExecutable = 3111 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 3112 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 3113 } 3114 3115 static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts, 3116 ArgumentConsumer Consumer) { 3117 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 3118 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3119 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3120 #include "clang/Driver/Options.inc" 3121 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3122 3123 if (Opts.UseLibcxx) 3124 GenerateArg(Consumer, OPT_stdlib_EQ, "libc++"); 3125 3126 if (!Opts.ModuleCachePath.empty()) 3127 GenerateArg(Consumer, OPT_fmodules_cache_path, Opts.ModuleCachePath); 3128 3129 for (const auto &File : Opts.PrebuiltModuleFiles) 3130 GenerateArg(Consumer, OPT_fmodule_file, File.first + "=" + File.second); 3131 3132 for (const auto &Path : Opts.PrebuiltModulePaths) 3133 GenerateArg(Consumer, OPT_fprebuilt_module_path, Path); 3134 3135 for (const auto &Macro : Opts.ModulesIgnoreMacros) 3136 GenerateArg(Consumer, OPT_fmodules_ignore_macro, Macro.val()); 3137 3138 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3139 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3140 std::optional<bool> IsFramework, 3141 std::optional<bool> IgnoreSysRoot) { 3142 return llvm::is_contained(Groups, Entry.Group) && 3143 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3144 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3145 }; 3146 3147 auto It = Opts.UserEntries.begin(); 3148 auto End = Opts.UserEntries.end(); 3149 3150 // Add -I..., -F..., and -index-header-map options in order. 3151 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3152 std::nullopt, true); 3153 ++It) { 3154 OptSpecifier Opt = [It, Matches]() { 3155 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3156 return OPT_F; 3157 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3158 return OPT_I; 3159 if (Matches(*It, frontend::Angled, true, true)) 3160 return OPT_F; 3161 if (Matches(*It, frontend::Angled, false, true)) 3162 return OPT_I; 3163 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3164 }(); 3165 3166 if (It->Group == frontend::IndexHeaderMap) 3167 GenerateArg(Consumer, OPT_index_header_map); 3168 GenerateArg(Consumer, Opt, It->Path); 3169 }; 3170 3171 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3172 // have already been generated as "-I[xx]yy". If that's the case, their 3173 // position on command line was such that this has no semantic impact on 3174 // include paths. 3175 for (; It < End && 3176 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3177 ++It) { 3178 OptSpecifier Opt = 3179 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3180 GenerateArg(Consumer, Opt, It->Path); 3181 } 3182 3183 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3184 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3185 // command line was such that this has no semantic impact on include paths. 3186 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3187 GenerateArg(Consumer, OPT_idirafter, It->Path); 3188 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3189 GenerateArg(Consumer, OPT_iquote, It->Path); 3190 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3191 ++It) 3192 GenerateArg(Consumer, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3193 It->Path); 3194 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3195 GenerateArg(Consumer, OPT_iframework, It->Path); 3196 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3197 GenerateArg(Consumer, OPT_iframeworkwithsysroot, It->Path); 3198 3199 // Add the paths for the various language specific isystem flags. 3200 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3201 GenerateArg(Consumer, OPT_c_isystem, It->Path); 3202 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3203 GenerateArg(Consumer, OPT_cxx_isystem, It->Path); 3204 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3205 GenerateArg(Consumer, OPT_objc_isystem, It->Path); 3206 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3207 GenerateArg(Consumer, OPT_objcxx_isystem, It->Path); 3208 3209 // Add the internal paths from a driver that detects standard include paths. 3210 // Note: Some paths that came from "-internal-isystem" arguments may have 3211 // already been generated as "-isystem". If that's the case, their position on 3212 // command line was such that this has no semantic impact on include paths. 3213 for (; It < End && 3214 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3215 ++It) { 3216 OptSpecifier Opt = It->Group == frontend::System 3217 ? OPT_internal_isystem 3218 : OPT_internal_externc_isystem; 3219 GenerateArg(Consumer, Opt, It->Path); 3220 } 3221 3222 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3223 3224 // Add the path prefixes which are implicitly treated as being system headers. 3225 for (const auto &P : Opts.SystemHeaderPrefixes) { 3226 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3227 : OPT_no_system_header_prefix; 3228 GenerateArg(Consumer, Opt, P.Prefix); 3229 } 3230 3231 for (const std::string &F : Opts.VFSOverlayFiles) 3232 GenerateArg(Consumer, OPT_ivfsoverlay, F); 3233 } 3234 3235 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3236 DiagnosticsEngine &Diags, 3237 const std::string &WorkingDir) { 3238 unsigned NumErrorsBefore = Diags.getNumErrors(); 3239 3240 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3241 3242 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3243 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3244 #include "clang/Driver/Options.inc" 3245 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3246 3247 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3248 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3249 3250 // Canonicalize -fmodules-cache-path before storing it. 3251 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3252 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3253 if (WorkingDir.empty()) 3254 llvm::sys::fs::make_absolute(P); 3255 else 3256 llvm::sys::fs::make_absolute(WorkingDir, P); 3257 } 3258 llvm::sys::path::remove_dots(P); 3259 Opts.ModuleCachePath = std::string(P); 3260 3261 // Only the -fmodule-file=<name>=<file> form. 3262 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3263 StringRef Val = A->getValue(); 3264 if (Val.contains('=')) { 3265 auto Split = Val.split('='); 3266 Opts.PrebuiltModuleFiles.insert_or_assign( 3267 std::string(Split.first), std::string(Split.second)); 3268 } 3269 } 3270 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3271 Opts.AddPrebuiltModulePath(A->getValue()); 3272 3273 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3274 StringRef MacroDef = A->getValue(); 3275 Opts.ModulesIgnoreMacros.insert( 3276 llvm::CachedHashString(MacroDef.split('=').first)); 3277 } 3278 3279 // Add -I..., -F..., and -index-header-map options in order. 3280 bool IsIndexHeaderMap = false; 3281 bool IsSysrootSpecified = 3282 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3283 3284 // Expand a leading `=` to the sysroot if one was passed (and it's not a 3285 // framework flag). 3286 auto PrefixHeaderPath = [IsSysrootSpecified, 3287 &Opts](const llvm::opt::Arg *A, 3288 bool IsFramework = false) -> std::string { 3289 assert(A->getNumValues() && "Unexpected empty search path flag!"); 3290 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3291 SmallString<32> Buffer; 3292 llvm::sys::path::append(Buffer, Opts.Sysroot, 3293 llvm::StringRef(A->getValue()).substr(1)); 3294 return std::string(Buffer); 3295 } 3296 return A->getValue(); 3297 }; 3298 3299 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3300 if (A->getOption().matches(OPT_index_header_map)) { 3301 // -index-header-map applies to the next -I or -F. 3302 IsIndexHeaderMap = true; 3303 continue; 3304 } 3305 3306 frontend::IncludeDirGroup Group = 3307 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3308 3309 bool IsFramework = A->getOption().matches(OPT_F); 3310 Opts.AddPath(PrefixHeaderPath(A, IsFramework), Group, IsFramework, 3311 /*IgnoreSysroot*/ true); 3312 IsIndexHeaderMap = false; 3313 } 3314 3315 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3316 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3317 for (const auto *A : 3318 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3319 if (A->getOption().matches(OPT_iprefix)) 3320 Prefix = A->getValue(); 3321 else if (A->getOption().matches(OPT_iwithprefix)) 3322 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3323 else 3324 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3325 } 3326 3327 for (const auto *A : Args.filtered(OPT_idirafter)) 3328 Opts.AddPath(PrefixHeaderPath(A), frontend::After, false, true); 3329 for (const auto *A : Args.filtered(OPT_iquote)) 3330 Opts.AddPath(PrefixHeaderPath(A), frontend::Quoted, false, true); 3331 3332 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) { 3333 if (A->getOption().matches(OPT_iwithsysroot)) { 3334 Opts.AddPath(A->getValue(), frontend::System, false, 3335 /*IgnoreSysRoot=*/false); 3336 continue; 3337 } 3338 Opts.AddPath(PrefixHeaderPath(A), frontend::System, false, true); 3339 } 3340 for (const auto *A : Args.filtered(OPT_iframework)) 3341 Opts.AddPath(A->getValue(), frontend::System, true, true); 3342 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3343 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3344 /*IgnoreSysRoot=*/false); 3345 3346 // Add the paths for the various language specific isystem flags. 3347 for (const auto *A : Args.filtered(OPT_c_isystem)) 3348 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3349 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3350 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3351 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3352 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3353 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3354 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3355 3356 // Add the internal paths from a driver that detects standard include paths. 3357 for (const auto *A : 3358 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3359 frontend::IncludeDirGroup Group = frontend::System; 3360 if (A->getOption().matches(OPT_internal_externc_isystem)) 3361 Group = frontend::ExternCSystem; 3362 Opts.AddPath(A->getValue(), Group, false, true); 3363 } 3364 3365 // Add the path prefixes which are implicitly treated as being system headers. 3366 for (const auto *A : 3367 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3368 Opts.AddSystemHeaderPrefix( 3369 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3370 3371 for (const auto *A : Args.filtered(OPT_ivfsoverlay, OPT_vfsoverlay)) 3372 Opts.AddVFSOverlayFile(A->getValue()); 3373 3374 return Diags.getNumErrors() == NumErrorsBefore; 3375 } 3376 3377 static void GenerateAPINotesArgs(const APINotesOptions &Opts, 3378 ArgumentConsumer Consumer) { 3379 if (!Opts.SwiftVersion.empty()) 3380 GenerateArg(Consumer, OPT_fapinotes_swift_version, 3381 Opts.SwiftVersion.getAsString()); 3382 3383 for (const auto &Path : Opts.ModuleSearchPaths) 3384 GenerateArg(Consumer, OPT_iapinotes_modules, Path); 3385 } 3386 3387 static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args, 3388 DiagnosticsEngine &diags) { 3389 if (const Arg *A = Args.getLastArg(OPT_fapinotes_swift_version)) { 3390 if (Opts.SwiftVersion.tryParse(A->getValue())) 3391 diags.Report(diag::err_drv_invalid_value) 3392 << A->getAsString(Args) << A->getValue(); 3393 } 3394 for (const Arg *A : Args.filtered(OPT_iapinotes_modules)) 3395 Opts.ModuleSearchPaths.push_back(A->getValue()); 3396 } 3397 3398 static void GeneratePointerAuthArgs(const LangOptions &Opts, 3399 ArgumentConsumer Consumer) { 3400 if (Opts.PointerAuthIntrinsics) 3401 GenerateArg(Consumer, OPT_fptrauth_intrinsics); 3402 if (Opts.PointerAuthCalls) 3403 GenerateArg(Consumer, OPT_fptrauth_calls); 3404 if (Opts.PointerAuthReturns) 3405 GenerateArg(Consumer, OPT_fptrauth_returns); 3406 if (Opts.PointerAuthAuthTraps) 3407 GenerateArg(Consumer, OPT_fptrauth_auth_traps); 3408 if (Opts.PointerAuthVTPtrAddressDiscrimination) 3409 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_address_discrimination); 3410 if (Opts.PointerAuthVTPtrTypeDiscrimination) 3411 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_type_discrimination); 3412 if (Opts.PointerAuthInitFini) 3413 GenerateArg(Consumer, OPT_fptrauth_init_fini); 3414 } 3415 3416 static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args, 3417 DiagnosticsEngine &Diags) { 3418 Opts.PointerAuthIntrinsics = Args.hasArg(OPT_fptrauth_intrinsics); 3419 Opts.PointerAuthCalls = Args.hasArg(OPT_fptrauth_calls); 3420 Opts.PointerAuthReturns = Args.hasArg(OPT_fptrauth_returns); 3421 Opts.PointerAuthAuthTraps = Args.hasArg(OPT_fptrauth_auth_traps); 3422 Opts.PointerAuthVTPtrAddressDiscrimination = 3423 Args.hasArg(OPT_fptrauth_vtable_pointer_address_discrimination); 3424 Opts.PointerAuthVTPtrTypeDiscrimination = 3425 Args.hasArg(OPT_fptrauth_vtable_pointer_type_discrimination); 3426 Opts.PointerAuthInitFini = Args.hasArg(OPT_fptrauth_init_fini); 3427 } 3428 3429 /// Check if input file kind and language standard are compatible. 3430 static bool IsInputCompatibleWithStandard(InputKind IK, 3431 const LangStandard &S) { 3432 switch (IK.getLanguage()) { 3433 case Language::Unknown: 3434 case Language::LLVM_IR: 3435 case Language::CIR: 3436 llvm_unreachable("should not parse language flags for this input"); 3437 3438 case Language::C: 3439 case Language::ObjC: 3440 case Language::RenderScript: 3441 return S.getLanguage() == Language::C; 3442 3443 case Language::OpenCL: 3444 return S.getLanguage() == Language::OpenCL || 3445 S.getLanguage() == Language::OpenCLCXX; 3446 3447 case Language::OpenCLCXX: 3448 return S.getLanguage() == Language::OpenCLCXX; 3449 3450 case Language::CXX: 3451 case Language::ObjCXX: 3452 return S.getLanguage() == Language::CXX; 3453 3454 case Language::CUDA: 3455 // FIXME: What -std= values should be permitted for CUDA compilations? 3456 return S.getLanguage() == Language::CUDA || 3457 S.getLanguage() == Language::CXX; 3458 3459 case Language::HIP: 3460 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3461 3462 case Language::Asm: 3463 // Accept (and ignore) all -std= values. 3464 // FIXME: The -std= value is not ignored; it affects the tokenization 3465 // and preprocessing rules if we're preprocessing this asm input. 3466 return true; 3467 3468 case Language::HLSL: 3469 return S.getLanguage() == Language::HLSL; 3470 } 3471 3472 llvm_unreachable("unexpected input language"); 3473 } 3474 3475 /// Get language name for given input kind. 3476 static StringRef GetInputKindName(InputKind IK) { 3477 switch (IK.getLanguage()) { 3478 case Language::C: 3479 return "C"; 3480 case Language::ObjC: 3481 return "Objective-C"; 3482 case Language::CXX: 3483 return "C++"; 3484 case Language::ObjCXX: 3485 return "Objective-C++"; 3486 case Language::OpenCL: 3487 return "OpenCL"; 3488 case Language::OpenCLCXX: 3489 return "C++ for OpenCL"; 3490 case Language::CUDA: 3491 return "CUDA"; 3492 case Language::RenderScript: 3493 return "RenderScript"; 3494 case Language::HIP: 3495 return "HIP"; 3496 3497 case Language::Asm: 3498 return "Asm"; 3499 case Language::LLVM_IR: 3500 return "LLVM IR"; 3501 case Language::CIR: 3502 return "Clang IR"; 3503 3504 case Language::HLSL: 3505 return "HLSL"; 3506 3507 case Language::Unknown: 3508 break; 3509 } 3510 llvm_unreachable("unknown input language"); 3511 } 3512 3513 void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts, 3514 ArgumentConsumer Consumer, 3515 const llvm::Triple &T, 3516 InputKind IK) { 3517 if (IK.getFormat() == InputKind::Precompiled || 3518 IK.getLanguage() == Language::LLVM_IR || 3519 IK.getLanguage() == Language::CIR) { 3520 if (Opts.ObjCAutoRefCount) 3521 GenerateArg(Consumer, OPT_fobjc_arc); 3522 if (Opts.PICLevel != 0) 3523 GenerateArg(Consumer, OPT_pic_level, Twine(Opts.PICLevel)); 3524 if (Opts.PIE) 3525 GenerateArg(Consumer, OPT_pic_is_pie); 3526 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3527 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3528 3529 return; 3530 } 3531 3532 OptSpecifier StdOpt; 3533 switch (Opts.LangStd) { 3534 case LangStandard::lang_opencl10: 3535 case LangStandard::lang_opencl11: 3536 case LangStandard::lang_opencl12: 3537 case LangStandard::lang_opencl20: 3538 case LangStandard::lang_opencl30: 3539 case LangStandard::lang_openclcpp10: 3540 case LangStandard::lang_openclcpp2021: 3541 StdOpt = OPT_cl_std_EQ; 3542 break; 3543 default: 3544 StdOpt = OPT_std_EQ; 3545 break; 3546 } 3547 3548 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3549 GenerateArg(Consumer, StdOpt, LangStandard.getName()); 3550 3551 if (Opts.IncludeDefaultHeader) 3552 GenerateArg(Consumer, OPT_finclude_default_header); 3553 if (Opts.DeclareOpenCLBuiltins) 3554 GenerateArg(Consumer, OPT_fdeclare_opencl_builtins); 3555 3556 const LangOptions *LangOpts = &Opts; 3557 3558 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3559 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3560 #include "clang/Driver/Options.inc" 3561 #undef LANG_OPTION_WITH_MARSHALLING 3562 3563 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3564 3565 if (Opts.ObjC) { 3566 GenerateArg(Consumer, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString()); 3567 3568 if (Opts.GC == LangOptions::GCOnly) 3569 GenerateArg(Consumer, OPT_fobjc_gc_only); 3570 else if (Opts.GC == LangOptions::HybridGC) 3571 GenerateArg(Consumer, OPT_fobjc_gc); 3572 else if (Opts.ObjCAutoRefCount == 1) 3573 GenerateArg(Consumer, OPT_fobjc_arc); 3574 3575 if (Opts.ObjCWeakRuntime) 3576 GenerateArg(Consumer, OPT_fobjc_runtime_has_weak); 3577 3578 if (Opts.ObjCWeak) 3579 GenerateArg(Consumer, OPT_fobjc_weak); 3580 3581 if (Opts.ObjCSubscriptingLegacyRuntime) 3582 GenerateArg(Consumer, OPT_fobjc_subscripting_legacy_runtime); 3583 } 3584 3585 if (Opts.GNUCVersion != 0) { 3586 unsigned Major = Opts.GNUCVersion / 100 / 100; 3587 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3588 unsigned Patch = Opts.GNUCVersion % 100; 3589 GenerateArg(Consumer, OPT_fgnuc_version_EQ, 3590 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch)); 3591 } 3592 3593 if (Opts.IgnoreXCOFFVisibility) 3594 GenerateArg(Consumer, OPT_mignore_xcoff_visibility); 3595 3596 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3597 GenerateArg(Consumer, OPT_ftrapv); 3598 GenerateArg(Consumer, OPT_ftrapv_handler, Opts.OverflowHandler); 3599 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3600 GenerateArg(Consumer, OPT_fwrapv); 3601 } 3602 3603 if (Opts.MSCompatibilityVersion != 0) { 3604 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3605 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3606 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3607 GenerateArg(Consumer, OPT_fms_compatibility_version, 3608 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor)); 3609 } 3610 3611 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 3612 T.isOSzOS()) { 3613 if (!Opts.Trigraphs) 3614 GenerateArg(Consumer, OPT_fno_trigraphs); 3615 } else { 3616 if (Opts.Trigraphs) 3617 GenerateArg(Consumer, OPT_ftrigraphs); 3618 } 3619 3620 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3621 GenerateArg(Consumer, OPT_fblocks); 3622 3623 if (Opts.ConvergentFunctions && 3624 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice || 3625 Opts.HLSL)) 3626 GenerateArg(Consumer, OPT_fconvergent_functions); 3627 3628 if (Opts.NoBuiltin && !Opts.Freestanding) 3629 GenerateArg(Consumer, OPT_fno_builtin); 3630 3631 if (!Opts.NoBuiltin) 3632 for (const auto &Func : Opts.NoBuiltinFuncs) 3633 GenerateArg(Consumer, OPT_fno_builtin_, Func); 3634 3635 if (Opts.LongDoubleSize == 128) 3636 GenerateArg(Consumer, OPT_mlong_double_128); 3637 else if (Opts.LongDoubleSize == 64) 3638 GenerateArg(Consumer, OPT_mlong_double_64); 3639 else if (Opts.LongDoubleSize == 80) 3640 GenerateArg(Consumer, OPT_mlong_double_80); 3641 3642 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3643 3644 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3645 // '-fopenmp-targets='. 3646 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3647 GenerateArg(Consumer, OPT_fopenmp); 3648 3649 if (Opts.OpenMP != 51) 3650 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3651 3652 if (!Opts.OpenMPUseTLS) 3653 GenerateArg(Consumer, OPT_fnoopenmp_use_tls); 3654 3655 if (Opts.OpenMPIsTargetDevice) 3656 GenerateArg(Consumer, OPT_fopenmp_is_target_device); 3657 3658 if (Opts.OpenMPIRBuilder) 3659 GenerateArg(Consumer, OPT_fopenmp_enable_irbuilder); 3660 } 3661 3662 if (Opts.OpenMPSimd) { 3663 GenerateArg(Consumer, OPT_fopenmp_simd); 3664 3665 if (Opts.OpenMP != 51) 3666 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3667 } 3668 3669 if (Opts.OpenMPThreadSubscription) 3670 GenerateArg(Consumer, OPT_fopenmp_assume_threads_oversubscription); 3671 3672 if (Opts.OpenMPTeamSubscription) 3673 GenerateArg(Consumer, OPT_fopenmp_assume_teams_oversubscription); 3674 3675 if (Opts.OpenMPTargetDebug != 0) 3676 GenerateArg(Consumer, OPT_fopenmp_target_debug_EQ, 3677 Twine(Opts.OpenMPTargetDebug)); 3678 3679 if (Opts.OpenMPCUDANumSMs != 0) 3680 GenerateArg(Consumer, OPT_fopenmp_cuda_number_of_sm_EQ, 3681 Twine(Opts.OpenMPCUDANumSMs)); 3682 3683 if (Opts.OpenMPCUDABlocksPerSM != 0) 3684 GenerateArg(Consumer, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3685 Twine(Opts.OpenMPCUDABlocksPerSM)); 3686 3687 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3688 GenerateArg(Consumer, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3689 Twine(Opts.OpenMPCUDAReductionBufNum)); 3690 3691 if (!Opts.OMPTargetTriples.empty()) { 3692 std::string Targets; 3693 llvm::raw_string_ostream OS(Targets); 3694 llvm::interleave( 3695 Opts.OMPTargetTriples, OS, 3696 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3697 GenerateArg(Consumer, OPT_fopenmp_targets_EQ, OS.str()); 3698 } 3699 3700 if (!Opts.OMPHostIRFile.empty()) 3701 GenerateArg(Consumer, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile); 3702 3703 if (Opts.OpenMPCUDAMode) 3704 GenerateArg(Consumer, OPT_fopenmp_cuda_mode); 3705 3706 if (Opts.OpenACC) { 3707 GenerateArg(Consumer, OPT_fopenacc); 3708 if (!Opts.OpenACCMacroOverride.empty()) 3709 GenerateArg(Consumer, OPT_openacc_macro_override, 3710 Opts.OpenACCMacroOverride); 3711 } 3712 3713 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3714 // generated from CodeGenOptions. 3715 3716 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3717 GenerateArg(Consumer, OPT_ffp_contract, "fast"); 3718 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3719 GenerateArg(Consumer, OPT_ffp_contract, "on"); 3720 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3721 GenerateArg(Consumer, OPT_ffp_contract, "off"); 3722 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3723 GenerateArg(Consumer, OPT_ffp_contract, "fast-honor-pragmas"); 3724 3725 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3726 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3727 3728 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3729 for (const std::string &F : Opts.NoSanitizeFiles) 3730 GenerateArg(Consumer, OPT_fsanitize_ignorelist_EQ, F); 3731 3732 switch (Opts.getClangABICompat()) { 3733 case LangOptions::ClangABI::Ver3_8: 3734 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "3.8"); 3735 break; 3736 case LangOptions::ClangABI::Ver4: 3737 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "4.0"); 3738 break; 3739 case LangOptions::ClangABI::Ver6: 3740 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "6.0"); 3741 break; 3742 case LangOptions::ClangABI::Ver7: 3743 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "7.0"); 3744 break; 3745 case LangOptions::ClangABI::Ver9: 3746 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "9.0"); 3747 break; 3748 case LangOptions::ClangABI::Ver11: 3749 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "11.0"); 3750 break; 3751 case LangOptions::ClangABI::Ver12: 3752 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "12.0"); 3753 break; 3754 case LangOptions::ClangABI::Ver14: 3755 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "14.0"); 3756 break; 3757 case LangOptions::ClangABI::Ver15: 3758 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "15.0"); 3759 break; 3760 case LangOptions::ClangABI::Ver17: 3761 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "17.0"); 3762 break; 3763 case LangOptions::ClangABI::Ver18: 3764 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "18.0"); 3765 break; 3766 case LangOptions::ClangABI::Latest: 3767 break; 3768 } 3769 3770 if (Opts.getSignReturnAddressScope() == 3771 LangOptions::SignReturnAddressScopeKind::All) 3772 GenerateArg(Consumer, OPT_msign_return_address_EQ, "all"); 3773 else if (Opts.getSignReturnAddressScope() == 3774 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3775 GenerateArg(Consumer, OPT_msign_return_address_EQ, "non-leaf"); 3776 3777 if (Opts.getSignReturnAddressKey() == 3778 LangOptions::SignReturnAddressKeyKind::BKey) 3779 GenerateArg(Consumer, OPT_msign_return_address_key_EQ, "b_key"); 3780 3781 if (Opts.CXXABI) 3782 GenerateArg(Consumer, OPT_fcxx_abi_EQ, 3783 TargetCXXABI::getSpelling(*Opts.CXXABI)); 3784 3785 if (Opts.RelativeCXXABIVTables) 3786 GenerateArg(Consumer, OPT_fexperimental_relative_cxx_abi_vtables); 3787 else 3788 GenerateArg(Consumer, OPT_fno_experimental_relative_cxx_abi_vtables); 3789 3790 if (Opts.UseTargetPathSeparator) 3791 GenerateArg(Consumer, OPT_ffile_reproducible); 3792 else 3793 GenerateArg(Consumer, OPT_fno_file_reproducible); 3794 3795 for (const auto &MP : Opts.MacroPrefixMap) 3796 GenerateArg(Consumer, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second); 3797 3798 if (!Opts.RandstructSeed.empty()) 3799 GenerateArg(Consumer, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed); 3800 } 3801 3802 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3803 InputKind IK, const llvm::Triple &T, 3804 std::vector<std::string> &Includes, 3805 DiagnosticsEngine &Diags) { 3806 unsigned NumErrorsBefore = Diags.getNumErrors(); 3807 3808 if (IK.getFormat() == InputKind::Precompiled || 3809 IK.getLanguage() == Language::LLVM_IR || 3810 IK.getLanguage() == Language::CIR) { 3811 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3812 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3813 // what the input type is. 3814 if (Args.hasArg(OPT_fobjc_arc)) 3815 Opts.ObjCAutoRefCount = 1; 3816 // PICLevel and PIELevel are needed during code generation and this should 3817 // be set regardless of the input type. 3818 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3819 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3820 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3821 Diags, Opts.Sanitize); 3822 3823 return Diags.getNumErrors() == NumErrorsBefore; 3824 } 3825 3826 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3827 // FIXME: Should we really be parsing this for an Language::Asm input? 3828 3829 // FIXME: Cleanup per-file based stuff. 3830 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3831 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3832 LangStd = LangStandard::getLangKind(A->getValue()); 3833 if (LangStd == LangStandard::lang_unspecified) { 3834 Diags.Report(diag::err_drv_invalid_value) 3835 << A->getAsString(Args) << A->getValue(); 3836 // Report supported standards with short description. 3837 for (unsigned KindValue = 0; 3838 KindValue != LangStandard::lang_unspecified; 3839 ++KindValue) { 3840 const LangStandard &Std = LangStandard::getLangStandardForKind( 3841 static_cast<LangStandard::Kind>(KindValue)); 3842 if (IsInputCompatibleWithStandard(IK, Std)) { 3843 auto Diag = Diags.Report(diag::note_drv_use_standard); 3844 Diag << Std.getName() << Std.getDescription(); 3845 unsigned NumAliases = 0; 3846 #define LANGSTANDARD(id, name, lang, desc, features) 3847 #define LANGSTANDARD_ALIAS(id, alias) \ 3848 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3849 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3850 #include "clang/Basic/LangStandards.def" 3851 Diag << NumAliases; 3852 #define LANGSTANDARD(id, name, lang, desc, features) 3853 #define LANGSTANDARD_ALIAS(id, alias) \ 3854 if (KindValue == LangStandard::lang_##id) Diag << alias; 3855 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3856 #include "clang/Basic/LangStandards.def" 3857 } 3858 } 3859 } else { 3860 // Valid standard, check to make sure language and standard are 3861 // compatible. 3862 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3863 if (!IsInputCompatibleWithStandard(IK, Std)) { 3864 Diags.Report(diag::err_drv_argument_not_allowed_with) 3865 << A->getAsString(Args) << GetInputKindName(IK); 3866 } 3867 } 3868 } 3869 3870 // -cl-std only applies for OpenCL language standards. 3871 // Override the -std option in this case. 3872 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3873 LangStandard::Kind OpenCLLangStd 3874 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3875 .Cases("cl", "CL", LangStandard::lang_opencl10) 3876 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3877 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3878 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3879 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3880 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3881 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3882 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3883 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3884 .Default(LangStandard::lang_unspecified); 3885 3886 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3887 Diags.Report(diag::err_drv_invalid_value) 3888 << A->getAsString(Args) << A->getValue(); 3889 } 3890 else 3891 LangStd = OpenCLLangStd; 3892 } 3893 3894 // These need to be parsed now. They are used to set OpenCL defaults. 3895 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3896 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3897 3898 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3899 3900 // The key paths of codegen options defined in Options.td start with 3901 // "LangOpts->". Let's provide the expected variable name and type. 3902 LangOptions *LangOpts = &Opts; 3903 3904 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3905 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3906 #include "clang/Driver/Options.inc" 3907 #undef LANG_OPTION_WITH_MARSHALLING 3908 3909 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3910 StringRef Name = A->getValue(); 3911 if (Name == "full" || Name == "branch") { 3912 Opts.CFProtectionBranch = 1; 3913 } 3914 } 3915 3916 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3917 !Args.hasArg(OPT_sycl_std_EQ)) { 3918 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3919 // provide -sycl-std=, we want to default it to whatever the default SYCL 3920 // version is. I could not find a way to express this with the options 3921 // tablegen because we still want this value to be SYCL_None when the user 3922 // is not in device or host mode. 3923 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3924 } 3925 3926 if (Opts.ObjC) { 3927 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3928 StringRef value = arg->getValue(); 3929 if (Opts.ObjCRuntime.tryParse(value)) 3930 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3931 } 3932 3933 if (Args.hasArg(OPT_fobjc_gc_only)) 3934 Opts.setGC(LangOptions::GCOnly); 3935 else if (Args.hasArg(OPT_fobjc_gc)) 3936 Opts.setGC(LangOptions::HybridGC); 3937 else if (Args.hasArg(OPT_fobjc_arc)) { 3938 Opts.ObjCAutoRefCount = 1; 3939 if (!Opts.ObjCRuntime.allowsARC()) 3940 Diags.Report(diag::err_arc_unsupported_on_runtime); 3941 } 3942 3943 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3944 // whether the feature is actually enabled. This is predominantly 3945 // determined by -fobjc-runtime, but we allow it to be overridden 3946 // from the command line for testing purposes. 3947 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3948 Opts.ObjCWeakRuntime = 1; 3949 else 3950 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3951 3952 // ObjCWeak determines whether __weak is actually enabled. 3953 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3954 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3955 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3956 assert(!Opts.ObjCWeak); 3957 } else if (Opts.getGC() != LangOptions::NonGC) { 3958 Diags.Report(diag::err_objc_weak_with_gc); 3959 } else if (!Opts.ObjCWeakRuntime) { 3960 Diags.Report(diag::err_objc_weak_unsupported); 3961 } else { 3962 Opts.ObjCWeak = 1; 3963 } 3964 } else if (Opts.ObjCAutoRefCount) { 3965 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3966 } 3967 3968 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3969 Opts.ObjCSubscriptingLegacyRuntime = 3970 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3971 } 3972 3973 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3974 // Check that the version has 1 to 3 components and the minor and patch 3975 // versions fit in two decimal digits. 3976 VersionTuple GNUCVer; 3977 bool Invalid = GNUCVer.tryParse(A->getValue()); 3978 unsigned Major = GNUCVer.getMajor(); 3979 unsigned Minor = GNUCVer.getMinor().value_or(0); 3980 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3981 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3982 Diags.Report(diag::err_drv_invalid_value) 3983 << A->getAsString(Args) << A->getValue(); 3984 } 3985 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3986 } 3987 3988 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3989 Opts.IgnoreXCOFFVisibility = 1; 3990 3991 if (Args.hasArg(OPT_ftrapv)) { 3992 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3993 // Set the handler, if one is specified. 3994 Opts.OverflowHandler = 3995 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3996 } 3997 else if (Args.hasArg(OPT_fwrapv)) 3998 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3999 4000 Opts.MSCompatibilityVersion = 0; 4001 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 4002 VersionTuple VT; 4003 if (VT.tryParse(A->getValue())) 4004 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 4005 << A->getValue(); 4006 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 4007 VT.getMinor().value_or(0) * 100000 + 4008 VT.getSubminor().value_or(0); 4009 } 4010 4011 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 4012 // is specified, or -std is set to a conforming mode. 4013 // Trigraphs are disabled by default in C++17 and C23 onwards. 4014 // For z/OS, trigraphs are enabled by default (without regard to the above). 4015 Opts.Trigraphs = 4016 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 4017 T.isOSzOS(); 4018 Opts.Trigraphs = 4019 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 4020 4021 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 4022 && Opts.OpenCLVersion == 200); 4023 4024 Opts.ConvergentFunctions = Args.hasArg(OPT_fconvergent_functions) || 4025 Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 4026 Opts.SYCLIsDevice || Opts.HLSL; 4027 4028 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 4029 if (!Opts.NoBuiltin) 4030 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 4031 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 4032 if (A->getOption().matches(options::OPT_mlong_double_64)) 4033 Opts.LongDoubleSize = 64; 4034 else if (A->getOption().matches(options::OPT_mlong_double_80)) 4035 Opts.LongDoubleSize = 80; 4036 else if (A->getOption().matches(options::OPT_mlong_double_128)) 4037 Opts.LongDoubleSize = 128; 4038 else 4039 Opts.LongDoubleSize = 0; 4040 } 4041 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 4042 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4043 4044 llvm::sort(Opts.ModuleFeatures); 4045 4046 // -mrtd option 4047 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 4048 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 4049 Diags.Report(diag::err_drv_argument_not_allowed_with) 4050 << A->getSpelling() << "-fdefault-calling-conv"; 4051 else { 4052 switch (T.getArch()) { 4053 case llvm::Triple::x86: 4054 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 4055 break; 4056 case llvm::Triple::m68k: 4057 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall); 4058 break; 4059 default: 4060 Diags.Report(diag::err_drv_argument_not_allowed_with) 4061 << A->getSpelling() << T.getTriple(); 4062 } 4063 } 4064 } 4065 4066 // Check if -fopenmp is specified and set default version to 5.0. 4067 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 51 : 0; 4068 // Check if -fopenmp-simd is specified. 4069 bool IsSimdSpecified = 4070 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 4071 /*Default=*/false); 4072 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 4073 Opts.OpenMPUseTLS = 4074 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 4075 Opts.OpenMPIsTargetDevice = 4076 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_target_device); 4077 Opts.OpenMPIRBuilder = 4078 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 4079 bool IsTargetSpecified = 4080 Opts.OpenMPIsTargetDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 4081 4082 Opts.ConvergentFunctions = 4083 Opts.ConvergentFunctions || Opts.OpenMPIsTargetDevice; 4084 4085 if (Opts.OpenMP || Opts.OpenMPSimd) { 4086 if (int Version = getLastArgIntValue( 4087 Args, OPT_fopenmp_version_EQ, 4088 (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags)) 4089 Opts.OpenMP = Version; 4090 // Provide diagnostic when a given target is not expected to be an OpenMP 4091 // device or host. 4092 if (!Opts.OpenMPIsTargetDevice) { 4093 switch (T.getArch()) { 4094 default: 4095 break; 4096 // Add unsupported host targets here: 4097 case llvm::Triple::nvptx: 4098 case llvm::Triple::nvptx64: 4099 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 4100 break; 4101 } 4102 } 4103 } 4104 4105 // Set the flag to prevent the implementation from emitting device exception 4106 // handling code for those requiring so. 4107 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) || 4108 Opts.OpenCLCPlusPlus) { 4109 4110 Opts.Exceptions = 0; 4111 Opts.CXXExceptions = 0; 4112 } 4113 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) { 4114 Opts.OpenMPCUDANumSMs = 4115 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 4116 Opts.OpenMPCUDANumSMs, Diags); 4117 Opts.OpenMPCUDABlocksPerSM = 4118 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 4119 Opts.OpenMPCUDABlocksPerSM, Diags); 4120 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 4121 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 4122 Opts.OpenMPCUDAReductionBufNum, Diags); 4123 } 4124 4125 // Set the value of the debugging flag used in the new offloading device RTL. 4126 // Set either by a specific value or to a default if not specified. 4127 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 4128 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 4129 Opts.OpenMPTargetDebug = getLastArgIntValue( 4130 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 4131 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 4132 Opts.OpenMPTargetDebug = 1; 4133 } 4134 4135 if (Opts.OpenMPIsTargetDevice) { 4136 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 4137 Opts.OpenMPTeamSubscription = true; 4138 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 4139 Opts.OpenMPThreadSubscription = true; 4140 } 4141 4142 // Get the OpenMP target triples if any. 4143 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 4144 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 4145 auto getArchPtrSize = [](const llvm::Triple &T) { 4146 if (T.isArch16Bit()) 4147 return Arch16Bit; 4148 if (T.isArch32Bit()) 4149 return Arch32Bit; 4150 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 4151 return Arch64Bit; 4152 }; 4153 4154 for (unsigned i = 0; i < A->getNumValues(); ++i) { 4155 llvm::Triple TT(A->getValue(i)); 4156 4157 if (TT.getArch() == llvm::Triple::UnknownArch || 4158 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4159 TT.getArch() == llvm::Triple::systemz || 4160 TT.getArch() == llvm::Triple::nvptx || 4161 TT.getArch() == llvm::Triple::nvptx64 || 4162 TT.getArch() == llvm::Triple::amdgcn || 4163 TT.getArch() == llvm::Triple::x86 || 4164 TT.getArch() == llvm::Triple::x86_64)) 4165 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4166 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4167 Diags.Report(diag::err_drv_incompatible_omp_arch) 4168 << A->getValue(i) << T.str(); 4169 else 4170 Opts.OMPTargetTriples.push_back(TT); 4171 } 4172 } 4173 4174 // Get OpenMP host file path if any and report if a non existent file is 4175 // found 4176 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4177 Opts.OMPHostIRFile = A->getValue(); 4178 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4179 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4180 << Opts.OMPHostIRFile; 4181 } 4182 4183 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4184 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice && 4185 (T.isNVPTX() || T.isAMDGCN()) && 4186 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4187 4188 // OpenACC Configuration. 4189 if (Args.hasArg(options::OPT_fopenacc)) { 4190 Opts.OpenACC = true; 4191 4192 if (Arg *A = Args.getLastArg(options::OPT_openacc_macro_override)) 4193 Opts.OpenACCMacroOverride = A->getValue(); 4194 } 4195 4196 // FIXME: Eliminate this dependency. 4197 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4198 OptSize = getOptimizationLevelSize(Args); 4199 Opts.Optimize = Opt != 0; 4200 Opts.OptimizeSize = OptSize != 0; 4201 4202 // This is the __NO_INLINE__ define, which just depends on things like the 4203 // optimization level and -fno-inline, not actually whether the backend has 4204 // inlining enabled. 4205 Opts.NoInlineDefine = !Opts.Optimize; 4206 if (Arg *InlineArg = Args.getLastArg( 4207 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4208 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4209 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4210 Opts.NoInlineDefine = true; 4211 4212 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4213 StringRef Val = A->getValue(); 4214 if (Val == "fast") 4215 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4216 else if (Val == "on") 4217 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4218 else if (Val == "off") 4219 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4220 else if (Val == "fast-honor-pragmas") 4221 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4222 else 4223 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4224 } 4225 4226 // Parse -fsanitize= arguments. 4227 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4228 Diags, Opts.Sanitize); 4229 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4230 std::vector<std::string> systemIgnorelists = 4231 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4232 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4233 systemIgnorelists.begin(), 4234 systemIgnorelists.end()); 4235 4236 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4237 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4238 4239 StringRef Ver = A->getValue(); 4240 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4241 unsigned Major, Minor = 0; 4242 4243 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4244 // y or y.0 (4 <= y <= current version). 4245 if (!VerParts.first.starts_with("0") && 4246 !VerParts.first.getAsInteger(10, Major) && 3 <= Major && 4247 Major <= CLANG_VERSION_MAJOR && 4248 (Major == 3 4249 ? VerParts.second.size() == 1 && 4250 !VerParts.second.getAsInteger(10, Minor) 4251 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) { 4252 // Got a valid version number. 4253 if (Major == 3 && Minor <= 8) 4254 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4255 else if (Major <= 4) 4256 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4257 else if (Major <= 6) 4258 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4259 else if (Major <= 7) 4260 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4261 else if (Major <= 9) 4262 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4263 else if (Major <= 11) 4264 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4265 else if (Major <= 12) 4266 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4267 else if (Major <= 14) 4268 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4269 else if (Major <= 15) 4270 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4271 else if (Major <= 17) 4272 Opts.setClangABICompat(LangOptions::ClangABI::Ver17); 4273 else if (Major <= 18) 4274 Opts.setClangABICompat(LangOptions::ClangABI::Ver18); 4275 } else if (Ver != "latest") { 4276 Diags.Report(diag::err_drv_invalid_value) 4277 << A->getAsString(Args) << A->getValue(); 4278 } 4279 } 4280 4281 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4282 StringRef SignScope = A->getValue(); 4283 4284 if (SignScope.equals_insensitive("none")) 4285 Opts.setSignReturnAddressScope( 4286 LangOptions::SignReturnAddressScopeKind::None); 4287 else if (SignScope.equals_insensitive("all")) 4288 Opts.setSignReturnAddressScope( 4289 LangOptions::SignReturnAddressScopeKind::All); 4290 else if (SignScope.equals_insensitive("non-leaf")) 4291 Opts.setSignReturnAddressScope( 4292 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4293 else 4294 Diags.Report(diag::err_drv_invalid_value) 4295 << A->getAsString(Args) << SignScope; 4296 4297 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4298 StringRef SignKey = A->getValue(); 4299 if (!SignScope.empty() && !SignKey.empty()) { 4300 if (SignKey == "a_key") 4301 Opts.setSignReturnAddressKey( 4302 LangOptions::SignReturnAddressKeyKind::AKey); 4303 else if (SignKey == "b_key") 4304 Opts.setSignReturnAddressKey( 4305 LangOptions::SignReturnAddressKeyKind::BKey); 4306 else 4307 Diags.Report(diag::err_drv_invalid_value) 4308 << A->getAsString(Args) << SignKey; 4309 } 4310 } 4311 } 4312 4313 // The value can be empty, which indicates the system default should be used. 4314 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4315 if (!CXXABI.empty()) { 4316 if (!TargetCXXABI::isABI(CXXABI)) { 4317 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4318 } else { 4319 auto Kind = TargetCXXABI::getKind(CXXABI); 4320 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4321 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4322 else 4323 Opts.CXXABI = Kind; 4324 } 4325 } 4326 4327 Opts.RelativeCXXABIVTables = 4328 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4329 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4330 TargetCXXABI::usesRelativeVTables(T)); 4331 4332 // RTTI is on by default. 4333 bool HasRTTI = !Args.hasArg(options::OPT_fno_rtti); 4334 Opts.OmitVTableRTTI = 4335 Args.hasFlag(options::OPT_fexperimental_omit_vtable_rtti, 4336 options::OPT_fno_experimental_omit_vtable_rtti, false); 4337 if (Opts.OmitVTableRTTI && HasRTTI) 4338 Diags.Report(diag::err_drv_using_omit_rtti_component_without_no_rtti); 4339 4340 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4341 auto Split = StringRef(A).split('='); 4342 Opts.MacroPrefixMap.insert( 4343 {std::string(Split.first), std::string(Split.second)}); 4344 } 4345 4346 Opts.UseTargetPathSeparator = 4347 !Args.getLastArg(OPT_fno_file_reproducible) && 4348 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4349 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4350 Args.getLastArg(OPT_ffile_reproducible)); 4351 4352 // Error if -mvscale-min is unbounded. 4353 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4354 unsigned VScaleMin; 4355 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4356 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4357 } 4358 4359 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4360 std::ifstream SeedFile(A->getValue(0)); 4361 4362 if (!SeedFile.is_open()) 4363 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4364 << A->getValue(0); 4365 4366 std::getline(SeedFile, Opts.RandstructSeed); 4367 } 4368 4369 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4370 Opts.RandstructSeed = A->getValue(0); 4371 4372 // Validate options for HLSL 4373 if (Opts.HLSL) { 4374 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to 4375 // handle PhysicalStorageBuffer64 memory model 4376 if (T.isDXIL() || T.isSPIRVLogical()) { 4377 enum { ShaderModel, VulkanEnv, ShaderStage }; 4378 enum { OS, Environment }; 4379 4380 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel; 4381 4382 if (T.getOSName().empty()) { 4383 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4384 << ExpectedOS << OS << T.str(); 4385 } else if (T.getEnvironmentName().empty()) { 4386 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4387 << ShaderStage << Environment << T.str(); 4388 } else if (!T.isShaderStageEnvironment()) { 4389 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4390 << ShaderStage << T.getEnvironmentName() << T.str(); 4391 } 4392 4393 if (T.isDXIL()) { 4394 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) { 4395 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4396 << ShaderModel << T.getOSName() << T.str(); 4397 } 4398 // Validate that if fnative-half-type is given, that 4399 // the language standard is at least hlsl2018, and that 4400 // the target shader model is at least 6.2. 4401 if (Args.getLastArg(OPT_fnative_half_type)) { 4402 const LangStandard &Std = 4403 LangStandard::getLangStandardForKind(Opts.LangStd); 4404 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018 && 4405 T.getOSVersion() >= VersionTuple(6, 2))) 4406 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4407 << "-enable-16bit-types" << true << Std.getName() 4408 << T.getOSVersion().getAsString(); 4409 } 4410 } else if (T.isSPIRVLogical()) { 4411 if (!T.isVulkanOS() || T.getVulkanVersion() == VersionTuple(0)) { 4412 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4413 << VulkanEnv << T.getOSName() << T.str(); 4414 } 4415 if (Args.getLastArg(OPT_fnative_half_type)) { 4416 const LangStandard &Std = 4417 LangStandard::getLangStandardForKind(Opts.LangStd); 4418 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018)) 4419 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4420 << "-fnative-half-type" << false << Std.getName(); 4421 } 4422 } else { 4423 llvm_unreachable("expected DXIL or SPIR-V target"); 4424 } 4425 } else 4426 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4427 } 4428 4429 return Diags.getNumErrors() == NumErrorsBefore; 4430 } 4431 4432 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4433 switch (Action) { 4434 case frontend::ASTDeclList: 4435 case frontend::ASTDump: 4436 case frontend::ASTPrint: 4437 case frontend::ASTView: 4438 case frontend::EmitAssembly: 4439 case frontend::EmitBC: 4440 case frontend::EmitCIR: 4441 case frontend::EmitHTML: 4442 case frontend::EmitLLVM: 4443 case frontend::EmitLLVMOnly: 4444 case frontend::EmitCodeGenOnly: 4445 case frontend::EmitObj: 4446 case frontend::ExtractAPI: 4447 case frontend::FixIt: 4448 case frontend::GenerateModule: 4449 case frontend::GenerateModuleInterface: 4450 case frontend::GenerateReducedModuleInterface: 4451 case frontend::GenerateHeaderUnit: 4452 case frontend::GeneratePCH: 4453 case frontend::GenerateInterfaceStubs: 4454 case frontend::ParseSyntaxOnly: 4455 case frontend::ModuleFileInfo: 4456 case frontend::VerifyPCH: 4457 case frontend::PluginAction: 4458 case frontend::RewriteObjC: 4459 case frontend::RewriteTest: 4460 case frontend::RunAnalysis: 4461 case frontend::TemplightDump: 4462 case frontend::MigrateSource: 4463 return false; 4464 4465 case frontend::DumpCompilerOptions: 4466 case frontend::DumpRawTokens: 4467 case frontend::DumpTokens: 4468 case frontend::InitOnly: 4469 case frontend::PrintPreamble: 4470 case frontend::PrintPreprocessedInput: 4471 case frontend::RewriteMacros: 4472 case frontend::RunPreprocessorOnly: 4473 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4474 return true; 4475 } 4476 llvm_unreachable("invalid frontend action"); 4477 } 4478 4479 static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts, 4480 ArgumentConsumer Consumer, 4481 const LangOptions &LangOpts, 4482 const FrontendOptions &FrontendOpts, 4483 const CodeGenOptions &CodeGenOpts) { 4484 const PreprocessorOptions *PreprocessorOpts = &Opts; 4485 4486 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4487 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4488 #include "clang/Driver/Options.inc" 4489 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4490 4491 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4492 GenerateArg(Consumer, OPT_pch_through_hdrstop_use); 4493 4494 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4495 GenerateArg(Consumer, OPT_error_on_deserialized_pch_decl, D); 4496 4497 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4498 GenerateArg(Consumer, OPT_preamble_bytes_EQ, 4499 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4500 (Opts.PrecompiledPreambleBytes.second ? "1" : "0")); 4501 4502 for (const auto &M : Opts.Macros) { 4503 // Don't generate __CET__ macro definitions. They are implied by the 4504 // -fcf-protection option that is generated elsewhere. 4505 if (M.first == "__CET__=1" && !M.second && 4506 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4507 continue; 4508 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4509 !CodeGenOpts.CFProtectionBranch) 4510 continue; 4511 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4512 CodeGenOpts.CFProtectionBranch) 4513 continue; 4514 4515 GenerateArg(Consumer, M.second ? OPT_U : OPT_D, M.first); 4516 } 4517 4518 for (const auto &I : Opts.Includes) { 4519 // Don't generate OpenCL includes. They are implied by other flags that are 4520 // generated elsewhere. 4521 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4522 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4523 I == "opencl-c.h")) 4524 continue; 4525 // Don't generate HLSL includes. They are implied by other flags that are 4526 // generated elsewhere. 4527 if (LangOpts.HLSL && I == "hlsl.h") 4528 continue; 4529 4530 GenerateArg(Consumer, OPT_include, I); 4531 } 4532 4533 for (const auto &CI : Opts.ChainedIncludes) 4534 GenerateArg(Consumer, OPT_chain_include, CI); 4535 4536 for (const auto &RF : Opts.RemappedFiles) 4537 GenerateArg(Consumer, OPT_remap_file, RF.first + ";" + RF.second); 4538 4539 if (Opts.SourceDateEpoch) 4540 GenerateArg(Consumer, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch)); 4541 4542 if (Opts.DefineTargetOSMacros) 4543 GenerateArg(Consumer, OPT_fdefine_target_os_macros); 4544 4545 for (const auto &EmbedEntry : Opts.EmbedEntries) 4546 GenerateArg(Consumer, OPT_embed_dir_EQ, EmbedEntry); 4547 4548 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4549 // generated elsewhere. 4550 } 4551 4552 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4553 DiagnosticsEngine &Diags, 4554 frontend::ActionKind Action, 4555 const FrontendOptions &FrontendOpts) { 4556 unsigned NumErrorsBefore = Diags.getNumErrors(); 4557 4558 PreprocessorOptions *PreprocessorOpts = &Opts; 4559 4560 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4561 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4562 #include "clang/Driver/Options.inc" 4563 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4564 4565 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4566 Args.hasArg(OPT_pch_through_hdrstop_use); 4567 4568 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4569 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4570 4571 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4572 StringRef Value(A->getValue()); 4573 size_t Comma = Value.find(','); 4574 unsigned Bytes = 0; 4575 unsigned EndOfLine = 0; 4576 4577 if (Comma == StringRef::npos || 4578 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4579 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4580 Diags.Report(diag::err_drv_preamble_format); 4581 else { 4582 Opts.PrecompiledPreambleBytes.first = Bytes; 4583 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4584 } 4585 } 4586 4587 // Add the __CET__ macro if a CFProtection option is set. 4588 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4589 StringRef Name = A->getValue(); 4590 if (Name == "branch") 4591 Opts.addMacroDef("__CET__=1"); 4592 else if (Name == "return") 4593 Opts.addMacroDef("__CET__=2"); 4594 else if (Name == "full") 4595 Opts.addMacroDef("__CET__=3"); 4596 } 4597 4598 // Add macros from the command line. 4599 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4600 if (A->getOption().matches(OPT_D)) 4601 Opts.addMacroDef(A->getValue()); 4602 else 4603 Opts.addMacroUndef(A->getValue()); 4604 } 4605 4606 // Add the ordered list of -includes. 4607 for (const auto *A : Args.filtered(OPT_include)) 4608 Opts.Includes.emplace_back(A->getValue()); 4609 4610 for (const auto *A : Args.filtered(OPT_chain_include)) 4611 Opts.ChainedIncludes.emplace_back(A->getValue()); 4612 4613 for (const auto *A : Args.filtered(OPT_remap_file)) { 4614 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4615 4616 if (Split.second.empty()) { 4617 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4618 continue; 4619 } 4620 4621 Opts.addRemappedFile(Split.first, Split.second); 4622 } 4623 4624 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4625 StringRef Epoch = A->getValue(); 4626 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4627 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4628 // 9999-12-31T23:59:59Z) as the upper bound. 4629 const uint64_t MaxTimestamp = 4630 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4631 uint64_t V; 4632 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4633 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4634 << Epoch << MaxTimestamp; 4635 } else { 4636 Opts.SourceDateEpoch = V; 4637 } 4638 } 4639 4640 for (const auto *A : Args.filtered(OPT_embed_dir_EQ)) { 4641 StringRef Val = A->getValue(); 4642 Opts.EmbedEntries.push_back(std::string(Val)); 4643 } 4644 4645 // Always avoid lexing editor placeholders when we're just running the 4646 // preprocessor as we never want to emit the 4647 // "editor placeholder in source file" error in PP only mode. 4648 if (isStrictlyPreprocessorAction(Action)) 4649 Opts.LexEditorPlaceholders = false; 4650 4651 Opts.DefineTargetOSMacros = 4652 Args.hasFlag(OPT_fdefine_target_os_macros, 4653 OPT_fno_define_target_os_macros, Opts.DefineTargetOSMacros); 4654 4655 return Diags.getNumErrors() == NumErrorsBefore; 4656 } 4657 4658 static void 4659 GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts, 4660 ArgumentConsumer Consumer, 4661 frontend::ActionKind Action) { 4662 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4663 4664 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4665 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4666 #include "clang/Driver/Options.inc" 4667 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4668 4669 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4670 if (Generate_dM) 4671 GenerateArg(Consumer, OPT_dM); 4672 if (!Generate_dM && Opts.ShowMacros) 4673 GenerateArg(Consumer, OPT_dD); 4674 if (Opts.DirectivesOnly) 4675 GenerateArg(Consumer, OPT_fdirectives_only); 4676 } 4677 4678 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4679 ArgList &Args, DiagnosticsEngine &Diags, 4680 frontend::ActionKind Action) { 4681 unsigned NumErrorsBefore = Diags.getNumErrors(); 4682 4683 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4684 4685 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4686 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4687 #include "clang/Driver/Options.inc" 4688 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4689 4690 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4691 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4692 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4693 4694 return Diags.getNumErrors() == NumErrorsBefore; 4695 } 4696 4697 static void GenerateTargetArgs(const TargetOptions &Opts, 4698 ArgumentConsumer Consumer) { 4699 const TargetOptions *TargetOpts = &Opts; 4700 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4701 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4702 #include "clang/Driver/Options.inc" 4703 #undef TARGET_OPTION_WITH_MARSHALLING 4704 4705 if (!Opts.SDKVersion.empty()) 4706 GenerateArg(Consumer, OPT_target_sdk_version_EQ, 4707 Opts.SDKVersion.getAsString()); 4708 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4709 GenerateArg(Consumer, OPT_darwin_target_variant_sdk_version_EQ, 4710 Opts.DarwinTargetVariantSDKVersion.getAsString()); 4711 } 4712 4713 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4714 DiagnosticsEngine &Diags) { 4715 unsigned NumErrorsBefore = Diags.getNumErrors(); 4716 4717 TargetOptions *TargetOpts = &Opts; 4718 4719 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4720 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4721 #include "clang/Driver/Options.inc" 4722 #undef TARGET_OPTION_WITH_MARSHALLING 4723 4724 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4725 llvm::VersionTuple Version; 4726 if (Version.tryParse(A->getValue())) 4727 Diags.Report(diag::err_drv_invalid_value) 4728 << A->getAsString(Args) << A->getValue(); 4729 else 4730 Opts.SDKVersion = Version; 4731 } 4732 if (Arg *A = 4733 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4734 llvm::VersionTuple Version; 4735 if (Version.tryParse(A->getValue())) 4736 Diags.Report(diag::err_drv_invalid_value) 4737 << A->getAsString(Args) << A->getValue(); 4738 else 4739 Opts.DarwinTargetVariantSDKVersion = Version; 4740 } 4741 4742 return Diags.getNumErrors() == NumErrorsBefore; 4743 } 4744 4745 bool CompilerInvocation::CreateFromArgsImpl( 4746 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4747 DiagnosticsEngine &Diags, const char *Argv0) { 4748 unsigned NumErrorsBefore = Diags.getNumErrors(); 4749 4750 // Parse the arguments. 4751 const OptTable &Opts = getDriverOptTable(); 4752 llvm::opt::Visibility VisibilityMask(options::CC1Option); 4753 unsigned MissingArgIndex, MissingArgCount; 4754 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4755 MissingArgCount, VisibilityMask); 4756 LangOptions &LangOpts = Res.getLangOpts(); 4757 4758 // Check for missing argument error. 4759 if (MissingArgCount) 4760 Diags.Report(diag::err_drv_missing_argument) 4761 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4762 4763 // Issue errors on unknown arguments. 4764 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4765 auto ArgString = A->getAsString(Args); 4766 std::string Nearest; 4767 if (Opts.findNearest(ArgString, Nearest, VisibilityMask) > 1) 4768 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4769 else 4770 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4771 << ArgString << Nearest; 4772 } 4773 4774 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4775 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4776 ParseAnalyzerArgs(Res.getAnalyzerOpts(), Args, Diags); 4777 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4778 /*DefaultDiagColor=*/false); 4779 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4780 // FIXME: We shouldn't have to pass the DashX option around here 4781 InputKind DashX = Res.getFrontendOpts().DashX; 4782 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4783 llvm::Triple T(Res.getTargetOpts().Triple); 4784 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4785 Res.getFileSystemOpts().WorkingDir); 4786 ParseAPINotesArgs(Res.getAPINotesOpts(), Args, Diags); 4787 4788 ParsePointerAuthArgs(LangOpts, Args, Diags); 4789 4790 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4791 Diags); 4792 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4793 LangOpts.ObjCExceptions = 1; 4794 4795 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4796 if (Warning == "misexpect" && 4797 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4798 Res.getCodeGenOpts().MisExpect = true; 4799 } 4800 } 4801 4802 if (LangOpts.CUDA) { 4803 // During CUDA device-side compilation, the aux triple is the 4804 // triple used for host compilation. 4805 if (LangOpts.CUDAIsDevice) 4806 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4807 } 4808 4809 // Set the triple of the host for OpenMP device compile. 4810 if (LangOpts.OpenMPIsTargetDevice) 4811 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4812 4813 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4814 Res.getFrontendOpts().OutputFile, LangOpts); 4815 4816 // FIXME: Override value name discarding when asan or msan is used because the 4817 // backend passes depend on the name of the alloca in order to print out 4818 // names. 4819 Res.getCodeGenOpts().DiscardValueNames &= 4820 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4821 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4822 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4823 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4824 4825 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4826 Res.getFrontendOpts().ProgramAction, 4827 Res.getFrontendOpts()); 4828 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4829 Res.getFrontendOpts().ProgramAction); 4830 4831 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4832 Res.getFrontendOpts().ProgramAction, 4833 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4834 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4835 Res.getDependencyOutputOpts().Targets.empty()) 4836 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4837 4838 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4839 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4840 !Res.getLangOpts().Sanitize.empty()) { 4841 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4842 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4843 } 4844 4845 // Store the command-line for using in the CodeView backend. 4846 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4847 Res.getCodeGenOpts().Argv0 = Argv0; 4848 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4849 } 4850 4851 // Set PGOOptions. Need to create a temporary VFS to read the profile 4852 // to determine the PGO type. 4853 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 4854 auto FS = 4855 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 4856 Diags, llvm::vfs::getRealFileSystem()); 4857 setPGOUseInstrumentor(Res.getCodeGenOpts(), 4858 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 4859 Diags); 4860 } 4861 4862 FixupInvocation(Res, Diags, Args, DashX); 4863 4864 return Diags.getNumErrors() == NumErrorsBefore; 4865 } 4866 4867 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4868 ArrayRef<const char *> CommandLineArgs, 4869 DiagnosticsEngine &Diags, 4870 const char *Argv0) { 4871 CompilerInvocation DummyInvocation; 4872 4873 return RoundTrip( 4874 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4875 DiagnosticsEngine &Diags, const char *Argv0) { 4876 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4877 }, 4878 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4879 StringAllocator SA) { 4880 Args.push_back("-cc1"); 4881 Invocation.generateCC1CommandLine(Args, SA); 4882 }, 4883 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4884 } 4885 4886 std::string CompilerInvocation::getModuleHash() const { 4887 // FIXME: Consider using SHA1 instead of MD5. 4888 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder; 4889 4890 // Note: For QoI reasons, the things we use as a hash here should all be 4891 // dumped via the -module-info flag. 4892 4893 // Start the signature with the compiler version. 4894 HBuilder.add(getClangFullRepositoryVersion()); 4895 4896 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4897 // and getClangFullRepositoryVersion() doesn't include git revision. 4898 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4899 4900 // Extend the signature with the language options 4901 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4902 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4903 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4904 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4905 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4906 #include "clang/Basic/LangOptions.def" 4907 4908 HBuilder.addRange(getLangOpts().ModuleFeatures); 4909 4910 HBuilder.add(getLangOpts().ObjCRuntime); 4911 HBuilder.addRange(getLangOpts().CommentOpts.BlockCommandNames); 4912 4913 // Extend the signature with the target options. 4914 HBuilder.add(getTargetOpts().Triple, getTargetOpts().CPU, 4915 getTargetOpts().TuneCPU, getTargetOpts().ABI); 4916 HBuilder.addRange(getTargetOpts().FeaturesAsWritten); 4917 4918 // Extend the signature with preprocessor options. 4919 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4920 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4921 4922 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4923 for (const auto &Macro : getPreprocessorOpts().Macros) { 4924 // If we're supposed to ignore this macro for the purposes of modules, 4925 // don't put it into the hash. 4926 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4927 // Check whether we're ignoring this macro. 4928 StringRef MacroDef = Macro.first; 4929 if (hsOpts.ModulesIgnoreMacros.count( 4930 llvm::CachedHashString(MacroDef.split('=').first))) 4931 continue; 4932 } 4933 4934 HBuilder.add(Macro); 4935 } 4936 4937 // Extend the signature with the sysroot and other header search options. 4938 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4939 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4940 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4941 hsOpts.ModulesValidateDiagnosticOptions); 4942 HBuilder.add(hsOpts.ResourceDir); 4943 4944 if (hsOpts.ModulesStrictContextHash) { 4945 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4946 HBuilder.addRange(hsOpts.UserEntries); 4947 HBuilder.addRange(hsOpts.VFSOverlayFiles); 4948 4949 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4950 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4951 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4952 HBuilder.add(diagOpts.get##Name()); 4953 #include "clang/Basic/DiagnosticOptions.def" 4954 #undef DIAGOPT 4955 #undef ENUM_DIAGOPT 4956 } 4957 4958 // Extend the signature with the user build path. 4959 HBuilder.add(hsOpts.ModuleUserBuildPath); 4960 4961 // Extend the signature with the module file extensions. 4962 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4963 ext->hashExtension(HBuilder); 4964 4965 // Extend the signature with the Swift version for API notes. 4966 const APINotesOptions &APINotesOpts = getAPINotesOpts(); 4967 if (!APINotesOpts.SwiftVersion.empty()) { 4968 HBuilder.add(APINotesOpts.SwiftVersion.getMajor()); 4969 if (auto Minor = APINotesOpts.SwiftVersion.getMinor()) 4970 HBuilder.add(*Minor); 4971 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor()) 4972 HBuilder.add(*Subminor); 4973 if (auto Build = APINotesOpts.SwiftVersion.getBuild()) 4974 HBuilder.add(*Build); 4975 } 4976 4977 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4978 // affects the debug info in the PCM. 4979 if (getCodeGenOpts().DebugTypeExtRefs) 4980 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4981 4982 // Extend the signature with the affecting debug options. 4983 if (getHeaderSearchOpts().ModuleFormat == "obj") { 4984 #define DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 4985 #define VALUE_DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 4986 #define ENUM_DEBUGOPT(Name, Type, Bits, Default) \ 4987 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name())); 4988 #define BENIGN_DEBUGOPT(Name, Bits, Default) 4989 #define BENIGN_VALUE_DEBUGOPT(Name, Bits, Default) 4990 #define BENIGN_ENUM_DEBUGOPT(Name, Type, Bits, Default) 4991 #include "clang/Basic/DebugOptions.def" 4992 } 4993 4994 // Extend the signature with the enabled sanitizers, if at least one is 4995 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4996 SanitizerSet SanHash = getLangOpts().Sanitize; 4997 SanHash.clear(getPPTransparentSanitizers()); 4998 if (!SanHash.empty()) 4999 HBuilder.add(SanHash.Mask); 5000 5001 llvm::MD5::MD5Result Result; 5002 HBuilder.getHasher().final(Result); 5003 uint64_t Hash = Result.high() ^ Result.low(); 5004 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 5005 } 5006 5007 void CompilerInvocationBase::generateCC1CommandLine( 5008 ArgumentConsumer Consumer) const { 5009 llvm::Triple T(getTargetOpts().Triple); 5010 5011 GenerateFileSystemArgs(getFileSystemOpts(), Consumer); 5012 GenerateMigratorArgs(getMigratorOpts(), Consumer); 5013 GenerateAnalyzerArgs(getAnalyzerOpts(), Consumer); 5014 GenerateDiagnosticArgs(getDiagnosticOpts(), Consumer, 5015 /*DefaultDiagColor=*/false); 5016 GenerateFrontendArgs(getFrontendOpts(), Consumer, getLangOpts().IsHeaderFile); 5017 GenerateTargetArgs(getTargetOpts(), Consumer); 5018 GenerateHeaderSearchArgs(getHeaderSearchOpts(), Consumer); 5019 GenerateAPINotesArgs(getAPINotesOpts(), Consumer); 5020 GeneratePointerAuthArgs(getLangOpts(), Consumer); 5021 GenerateLangArgs(getLangOpts(), Consumer, T, getFrontendOpts().DashX); 5022 GenerateCodeGenArgs(getCodeGenOpts(), Consumer, T, 5023 getFrontendOpts().OutputFile, &getLangOpts()); 5024 GeneratePreprocessorArgs(getPreprocessorOpts(), Consumer, getLangOpts(), 5025 getFrontendOpts(), getCodeGenOpts()); 5026 GeneratePreprocessorOutputArgs(getPreprocessorOutputOpts(), Consumer, 5027 getFrontendOpts().ProgramAction); 5028 GenerateDependencyOutputArgs(getDependencyOutputOpts(), Consumer); 5029 } 5030 5031 std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const { 5032 std::vector<std::string> Args{"-cc1"}; 5033 generateCC1CommandLine( 5034 [&Args](const Twine &Arg) { Args.push_back(Arg.str()); }); 5035 return Args; 5036 } 5037 5038 void CompilerInvocation::resetNonModularOptions() { 5039 getLangOpts().resetNonModularOptions(); 5040 getPreprocessorOpts().resetNonModularOptions(); 5041 getCodeGenOpts().resetNonModularOptions(getHeaderSearchOpts().ModuleFormat); 5042 } 5043 5044 void CompilerInvocation::clearImplicitModuleBuildOptions() { 5045 getLangOpts().ImplicitModules = false; 5046 getHeaderSearchOpts().ImplicitModuleMaps = false; 5047 getHeaderSearchOpts().ModuleCachePath.clear(); 5048 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 5049 getHeaderSearchOpts().BuildSessionTimestamp = 0; 5050 // The specific values we canonicalize to for pruning don't affect behaviour, 5051 /// so use the default values so they may be dropped from the command-line. 5052 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 5053 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 5054 } 5055 5056 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5057 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 5058 DiagnosticsEngine &Diags) { 5059 return createVFSFromCompilerInvocation(CI, Diags, 5060 llvm::vfs::getRealFileSystem()); 5061 } 5062 5063 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5064 clang::createVFSFromCompilerInvocation( 5065 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 5066 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5067 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 5068 Diags, std::move(BaseFS)); 5069 } 5070 5071 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 5072 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 5073 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5074 if (VFSOverlayFiles.empty()) 5075 return BaseFS; 5076 5077 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 5078 // earlier vfs files are on the bottom 5079 for (const auto &File : VFSOverlayFiles) { 5080 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 5081 Result->getBufferForFile(File); 5082 if (!Buffer) { 5083 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 5084 continue; 5085 } 5086 5087 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 5088 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 5089 /*DiagContext*/ nullptr, Result); 5090 if (!FS) { 5091 Diags.Report(diag::err_invalid_vfs_overlay) << File; 5092 continue; 5093 } 5094 5095 Result = FS; 5096 } 5097 return Result; 5098 } 5099