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