1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/Diagnostic.h" 16 #include "clang/Basic/DiagnosticDriver.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/TextDiagnosticBuffer.h" 41 #include "clang/Frontend/Utils.h" 42 #include "clang/Lex/HeaderSearchOptions.h" 43 #include "clang/Lex/PreprocessorOptions.h" 44 #include "clang/Sema/CodeCompleteOptions.h" 45 #include "clang/Serialization/ASTBitCodes.h" 46 #include "clang/Serialization/ModuleFileExtension.h" 47 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 48 #include "llvm/ADT/APInt.h" 49 #include "llvm/ADT/ArrayRef.h" 50 #include "llvm/ADT/CachedHashString.h" 51 #include "llvm/ADT/FloatingPointMode.h" 52 #include "llvm/ADT/Hashing.h" 53 #include "llvm/ADT/STLExtras.h" 54 #include "llvm/ADT/SmallString.h" 55 #include "llvm/ADT/SmallVector.h" 56 #include "llvm/ADT/StringRef.h" 57 #include "llvm/ADT/StringSwitch.h" 58 #include "llvm/ADT/Twine.h" 59 #include "llvm/Config/llvm-config.h" 60 #include "llvm/Frontend/Debug/Options.h" 61 #include "llvm/IR/DebugInfoMetadata.h" 62 #include "llvm/Linker/Linker.h" 63 #include "llvm/MC/MCTargetOptions.h" 64 #include "llvm/Option/Arg.h" 65 #include "llvm/Option/ArgList.h" 66 #include "llvm/Option/OptSpecifier.h" 67 #include "llvm/Option/OptTable.h" 68 #include "llvm/Option/Option.h" 69 #include "llvm/ProfileData/InstrProfReader.h" 70 #include "llvm/Remarks/HotnessThresholdParser.h" 71 #include "llvm/Support/CodeGen.h" 72 #include "llvm/Support/Compiler.h" 73 #include "llvm/Support/Error.h" 74 #include "llvm/Support/ErrorHandling.h" 75 #include "llvm/Support/ErrorOr.h" 76 #include "llvm/Support/FileSystem.h" 77 #include "llvm/Support/HashBuilder.h" 78 #include "llvm/Support/MathExtras.h" 79 #include "llvm/Support/MemoryBuffer.h" 80 #include "llvm/Support/Path.h" 81 #include "llvm/Support/Process.h" 82 #include "llvm/Support/Regex.h" 83 #include "llvm/Support/VersionTuple.h" 84 #include "llvm/Support/VirtualFileSystem.h" 85 #include "llvm/Support/raw_ostream.h" 86 #include "llvm/Target/TargetOptions.h" 87 #include "llvm/TargetParser/Host.h" 88 #include "llvm/TargetParser/Triple.h" 89 #include <algorithm> 90 #include <atomic> 91 #include <cassert> 92 #include <cstddef> 93 #include <cstring> 94 #include <ctime> 95 #include <fstream> 96 #include <limits> 97 #include <memory> 98 #include <optional> 99 #include <string> 100 #include <tuple> 101 #include <type_traits> 102 #include <utility> 103 #include <vector> 104 105 using namespace clang; 106 using namespace driver; 107 using namespace options; 108 using namespace llvm::opt; 109 110 //===----------------------------------------------------------------------===// 111 // Helpers. 112 //===----------------------------------------------------------------------===// 113 114 // Parse misexpect tolerance argument value. 115 // Valid option values are integers in the range [0, 100) 116 static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) { 117 uint32_t Val; 118 if (Arg.getAsInteger(10, Val)) 119 return llvm::createStringError(llvm::inconvertibleErrorCode(), 120 "Not an integer: %s", Arg.data()); 121 return Val; 122 } 123 124 //===----------------------------------------------------------------------===// 125 // Initialization. 126 //===----------------------------------------------------------------------===// 127 128 namespace { 129 template <class T> std::shared_ptr<T> make_shared_copy(const T &X) { 130 return std::make_shared<T>(X); 131 } 132 133 template <class T> 134 llvm::IntrusiveRefCntPtr<T> makeIntrusiveRefCntCopy(const T &X) { 135 return llvm::makeIntrusiveRefCnt<T>(X); 136 } 137 } // namespace 138 139 CompilerInvocationBase::CompilerInvocationBase() 140 : LangOpts(std::make_shared<LangOptions>()), 141 TargetOpts(std::make_shared<TargetOptions>()), 142 DiagnosticOpts(llvm::makeIntrusiveRefCnt<DiagnosticOptions>()), 143 HSOpts(std::make_shared<HeaderSearchOptions>()), 144 PPOpts(std::make_shared<PreprocessorOptions>()), 145 AnalyzerOpts(llvm::makeIntrusiveRefCnt<AnalyzerOptions>()), 146 MigratorOpts(std::make_shared<MigratorOptions>()), 147 APINotesOpts(std::make_shared<APINotesOptions>()), 148 CodeGenOpts(std::make_shared<CodeGenOptions>()), 149 FSOpts(std::make_shared<FileSystemOptions>()), 150 FrontendOpts(std::make_shared<FrontendOptions>()), 151 DependencyOutputOpts(std::make_shared<DependencyOutputOptions>()), 152 PreprocessorOutputOpts(std::make_shared<PreprocessorOutputOptions>()) {} 153 154 CompilerInvocationBase & 155 CompilerInvocationBase::deep_copy_assign(const CompilerInvocationBase &X) { 156 if (this != &X) { 157 LangOpts = make_shared_copy(X.getLangOpts()); 158 TargetOpts = make_shared_copy(X.getTargetOpts()); 159 DiagnosticOpts = makeIntrusiveRefCntCopy(X.getDiagnosticOpts()); 160 HSOpts = make_shared_copy(X.getHeaderSearchOpts()); 161 PPOpts = make_shared_copy(X.getPreprocessorOpts()); 162 AnalyzerOpts = makeIntrusiveRefCntCopy(X.getAnalyzerOpts()); 163 MigratorOpts = make_shared_copy(X.getMigratorOpts()); 164 APINotesOpts = make_shared_copy(X.getAPINotesOpts()); 165 CodeGenOpts = make_shared_copy(X.getCodeGenOpts()); 166 FSOpts = make_shared_copy(X.getFileSystemOpts()); 167 FrontendOpts = make_shared_copy(X.getFrontendOpts()); 168 DependencyOutputOpts = make_shared_copy(X.getDependencyOutputOpts()); 169 PreprocessorOutputOpts = make_shared_copy(X.getPreprocessorOutputOpts()); 170 } 171 return *this; 172 } 173 174 CompilerInvocationBase & 175 CompilerInvocationBase::shallow_copy_assign(const CompilerInvocationBase &X) { 176 if (this != &X) { 177 LangOpts = X.LangOpts; 178 TargetOpts = X.TargetOpts; 179 DiagnosticOpts = X.DiagnosticOpts; 180 HSOpts = X.HSOpts; 181 PPOpts = X.PPOpts; 182 AnalyzerOpts = X.AnalyzerOpts; 183 MigratorOpts = X.MigratorOpts; 184 APINotesOpts = X.APINotesOpts; 185 CodeGenOpts = X.CodeGenOpts; 186 FSOpts = X.FSOpts; 187 FrontendOpts = X.FrontendOpts; 188 DependencyOutputOpts = X.DependencyOutputOpts; 189 PreprocessorOutputOpts = X.PreprocessorOutputOpts; 190 } 191 return *this; 192 } 193 194 CompilerInvocation::CompilerInvocation(const CowCompilerInvocation &X) 195 : CompilerInvocationBase(EmptyConstructor{}) { 196 CompilerInvocationBase::deep_copy_assign(X); 197 } 198 199 CompilerInvocation & 200 CompilerInvocation::operator=(const CowCompilerInvocation &X) { 201 CompilerInvocationBase::deep_copy_assign(X); 202 return *this; 203 } 204 205 namespace { 206 template <typename T> 207 T &ensureOwned(std::shared_ptr<T> &Storage) { 208 if (Storage.use_count() > 1) 209 Storage = std::make_shared<T>(*Storage); 210 return *Storage; 211 } 212 213 template <typename T> 214 T &ensureOwned(llvm::IntrusiveRefCntPtr<T> &Storage) { 215 if (Storage.useCount() > 1) 216 Storage = llvm::makeIntrusiveRefCnt<T>(*Storage); 217 return *Storage; 218 } 219 } // namespace 220 221 LangOptions &CowCompilerInvocation::getMutLangOpts() { 222 return ensureOwned(LangOpts); 223 } 224 225 TargetOptions &CowCompilerInvocation::getMutTargetOpts() { 226 return ensureOwned(TargetOpts); 227 } 228 229 DiagnosticOptions &CowCompilerInvocation::getMutDiagnosticOpts() { 230 return ensureOwned(DiagnosticOpts); 231 } 232 233 HeaderSearchOptions &CowCompilerInvocation::getMutHeaderSearchOpts() { 234 return ensureOwned(HSOpts); 235 } 236 237 PreprocessorOptions &CowCompilerInvocation::getMutPreprocessorOpts() { 238 return ensureOwned(PPOpts); 239 } 240 241 AnalyzerOptions &CowCompilerInvocation::getMutAnalyzerOpts() { 242 return ensureOwned(AnalyzerOpts); 243 } 244 245 MigratorOptions &CowCompilerInvocation::getMutMigratorOpts() { 246 return ensureOwned(MigratorOpts); 247 } 248 249 APINotesOptions &CowCompilerInvocation::getMutAPINotesOpts() { 250 return ensureOwned(APINotesOpts); 251 } 252 253 CodeGenOptions &CowCompilerInvocation::getMutCodeGenOpts() { 254 return ensureOwned(CodeGenOpts); 255 } 256 257 FileSystemOptions &CowCompilerInvocation::getMutFileSystemOpts() { 258 return ensureOwned(FSOpts); 259 } 260 261 FrontendOptions &CowCompilerInvocation::getMutFrontendOpts() { 262 return ensureOwned(FrontendOpts); 263 } 264 265 DependencyOutputOptions &CowCompilerInvocation::getMutDependencyOutputOpts() { 266 return ensureOwned(DependencyOutputOpts); 267 } 268 269 PreprocessorOutputOptions & 270 CowCompilerInvocation::getMutPreprocessorOutputOpts() { 271 return ensureOwned(PreprocessorOutputOpts); 272 } 273 274 //===----------------------------------------------------------------------===// 275 // Normalizers 276 //===----------------------------------------------------------------------===// 277 278 using ArgumentConsumer = CompilerInvocation::ArgumentConsumer; 279 280 #define SIMPLE_ENUM_VALUE_TABLE 281 #include "clang/Driver/Options.inc" 282 #undef SIMPLE_ENUM_VALUE_TABLE 283 284 static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 285 unsigned TableIndex, 286 const ArgList &Args, 287 DiagnosticsEngine &Diags) { 288 if (Args.hasArg(Opt)) 289 return true; 290 return std::nullopt; 291 } 292 293 static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, 294 unsigned, 295 const ArgList &Args, 296 DiagnosticsEngine &) { 297 if (Args.hasArg(Opt)) 298 return false; 299 return std::nullopt; 300 } 301 302 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 303 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 304 /// unnecessary template instantiations and just ignore it with a variadic 305 /// argument. 306 static void denormalizeSimpleFlag(ArgumentConsumer Consumer, 307 const Twine &Spelling, Option::OptionClass, 308 unsigned, /*T*/...) { 309 Consumer(Spelling); 310 } 311 312 template <typename T> static constexpr bool is_uint64_t_convertible() { 313 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 314 } 315 316 template <typename T, 317 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 318 static auto makeFlagToValueNormalizer(T Value) { 319 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 320 DiagnosticsEngine &) -> std::optional<T> { 321 if (Args.hasArg(Opt)) 322 return Value; 323 return std::nullopt; 324 }; 325 } 326 327 template <typename T, 328 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 329 static auto makeFlagToValueNormalizer(T Value) { 330 return makeFlagToValueNormalizer(uint64_t(Value)); 331 } 332 333 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 334 OptSpecifier OtherOpt) { 335 return [Value, OtherValue, 336 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args, 337 DiagnosticsEngine &) -> std::optional<bool> { 338 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 339 return A->getOption().matches(Opt) ? Value : OtherValue; 340 } 341 return std::nullopt; 342 }; 343 } 344 345 static auto makeBooleanOptionDenormalizer(bool Value) { 346 return [Value](ArgumentConsumer Consumer, const Twine &Spelling, 347 Option::OptionClass, unsigned, bool KeyPath) { 348 if (KeyPath == Value) 349 Consumer(Spelling); 350 }; 351 } 352 353 static void denormalizeStringImpl(ArgumentConsumer Consumer, 354 const Twine &Spelling, 355 Option::OptionClass OptClass, unsigned, 356 const Twine &Value) { 357 switch (OptClass) { 358 case Option::SeparateClass: 359 case Option::JoinedOrSeparateClass: 360 case Option::JoinedAndSeparateClass: 361 Consumer(Spelling); 362 Consumer(Value); 363 break; 364 case Option::JoinedClass: 365 case Option::CommaJoinedClass: 366 Consumer(Spelling + Value); 367 break; 368 default: 369 llvm_unreachable("Cannot denormalize an option with option class " 370 "incompatible with string denormalization."); 371 } 372 } 373 374 template <typename T> 375 static void denormalizeString(ArgumentConsumer Consumer, const Twine &Spelling, 376 Option::OptionClass OptClass, unsigned TableIndex, 377 T Value) { 378 denormalizeStringImpl(Consumer, Spelling, OptClass, TableIndex, Twine(Value)); 379 } 380 381 static std::optional<SimpleEnumValue> 382 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 383 for (int I = 0, E = Table.Size; I != E; ++I) 384 if (Name == Table.Table[I].Name) 385 return Table.Table[I]; 386 387 return std::nullopt; 388 } 389 390 static std::optional<SimpleEnumValue> 391 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 392 for (int I = 0, E = Table.Size; I != E; ++I) 393 if (Value == Table.Table[I].Value) 394 return Table.Table[I]; 395 396 return std::nullopt; 397 } 398 399 static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 400 unsigned TableIndex, 401 const ArgList &Args, 402 DiagnosticsEngine &Diags) { 403 assert(TableIndex < SimpleEnumValueTablesSize); 404 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 405 406 auto *Arg = Args.getLastArg(Opt); 407 if (!Arg) 408 return std::nullopt; 409 410 StringRef ArgValue = Arg->getValue(); 411 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 412 return MaybeEnumVal->Value; 413 414 Diags.Report(diag::err_drv_invalid_value) 415 << Arg->getAsString(Args) << ArgValue; 416 return std::nullopt; 417 } 418 419 static void denormalizeSimpleEnumImpl(ArgumentConsumer Consumer, 420 const Twine &Spelling, 421 Option::OptionClass OptClass, 422 unsigned TableIndex, unsigned Value) { 423 assert(TableIndex < SimpleEnumValueTablesSize); 424 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 425 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 426 denormalizeString(Consumer, Spelling, OptClass, TableIndex, 427 MaybeEnumVal->Name); 428 } else { 429 llvm_unreachable("The simple enum value was not correctly defined in " 430 "the tablegen option description"); 431 } 432 } 433 434 template <typename T> 435 static void denormalizeSimpleEnum(ArgumentConsumer Consumer, 436 const Twine &Spelling, 437 Option::OptionClass OptClass, 438 unsigned TableIndex, T Value) { 439 return denormalizeSimpleEnumImpl(Consumer, Spelling, OptClass, TableIndex, 440 static_cast<unsigned>(Value)); 441 } 442 443 static std::optional<std::string> normalizeString(OptSpecifier Opt, 444 int TableIndex, 445 const ArgList &Args, 446 DiagnosticsEngine &Diags) { 447 auto *Arg = Args.getLastArg(Opt); 448 if (!Arg) 449 return std::nullopt; 450 return std::string(Arg->getValue()); 451 } 452 453 template <typename IntTy> 454 static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 455 const ArgList &Args, 456 DiagnosticsEngine &Diags) { 457 auto *Arg = Args.getLastArg(Opt); 458 if (!Arg) 459 return std::nullopt; 460 IntTy Res; 461 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 462 Diags.Report(diag::err_drv_invalid_int_value) 463 << Arg->getAsString(Args) << Arg->getValue(); 464 return std::nullopt; 465 } 466 return Res; 467 } 468 469 static std::optional<std::vector<std::string>> 470 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 471 DiagnosticsEngine &) { 472 return Args.getAllArgValues(Opt); 473 } 474 475 static void denormalizeStringVector(ArgumentConsumer Consumer, 476 const Twine &Spelling, 477 Option::OptionClass OptClass, 478 unsigned TableIndex, 479 const std::vector<std::string> &Values) { 480 switch (OptClass) { 481 case Option::CommaJoinedClass: { 482 std::string CommaJoinedValue; 483 if (!Values.empty()) { 484 CommaJoinedValue.append(Values.front()); 485 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 486 CommaJoinedValue.append(","); 487 CommaJoinedValue.append(Value); 488 } 489 } 490 denormalizeString(Consumer, Spelling, Option::OptionClass::JoinedClass, 491 TableIndex, CommaJoinedValue); 492 break; 493 } 494 case Option::JoinedClass: 495 case Option::SeparateClass: 496 case Option::JoinedOrSeparateClass: 497 for (const std::string &Value : Values) 498 denormalizeString(Consumer, Spelling, OptClass, TableIndex, Value); 499 break; 500 default: 501 llvm_unreachable("Cannot denormalize an option with option class " 502 "incompatible with string vector denormalization."); 503 } 504 } 505 506 static std::optional<std::string> normalizeTriple(OptSpecifier Opt, 507 int TableIndex, 508 const ArgList &Args, 509 DiagnosticsEngine &Diags) { 510 auto *Arg = Args.getLastArg(Opt); 511 if (!Arg) 512 return std::nullopt; 513 return llvm::Triple::normalize(Arg->getValue()); 514 } 515 516 template <typename T, typename U> 517 static T mergeForwardValue(T KeyPath, U Value) { 518 return static_cast<T>(Value); 519 } 520 521 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 522 return KeyPath | Value; 523 } 524 525 template <typename T> static T extractForwardValue(T KeyPath) { 526 return KeyPath; 527 } 528 529 template <typename T, typename U, U Value> 530 static T extractMaskValue(T KeyPath) { 531 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 532 } 533 534 #define PARSE_OPTION_WITH_MARSHALLING( \ 535 ARGS, DIAGS, PREFIX_TYPE, SPELLING, ID, KIND, GROUP, ALIAS, ALIASARGS, \ 536 FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, METAVAR, VALUES, \ 537 SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, \ 538 IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 539 if ((VISIBILITY) & options::CC1Option) { \ 540 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 541 if (IMPLIED_CHECK) \ 542 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 543 if (SHOULD_PARSE) \ 544 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 545 KEYPATH = \ 546 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 547 } 548 549 // Capture the extracted value as a lambda argument to avoid potential issues 550 // with lifetime extension of the reference. 551 #define GENERATE_OPTION_WITH_MARSHALLING( \ 552 CONSUMER, PREFIX_TYPE, SPELLING, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, \ 553 VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, METAVAR, VALUES, \ 554 SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, \ 555 IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 556 if ((VISIBILITY) & options::CC1Option) { \ 557 [&](const auto &Extracted) { \ 558 if (ALWAYS_EMIT || \ 559 (Extracted != \ 560 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 561 : (DEFAULT_VALUE)))) \ 562 DENORMALIZER(CONSUMER, SPELLING, Option::KIND##Class, TABLE_INDEX, \ 563 Extracted); \ 564 }(EXTRACTOR(KEYPATH)); \ 565 } 566 567 static StringRef GetInputKindName(InputKind IK); 568 569 static bool FixupInvocation(CompilerInvocation &Invocation, 570 DiagnosticsEngine &Diags, const ArgList &Args, 571 InputKind IK) { 572 unsigned NumErrorsBefore = Diags.getNumErrors(); 573 574 LangOptions &LangOpts = Invocation.getLangOpts(); 575 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 576 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 577 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 578 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 579 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 580 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 581 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 582 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 583 if (FrontendOpts.ShowStats) 584 CodeGenOpts.ClearASTBeforeBackend = false; 585 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 586 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 587 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 588 LangOpts.CurrentModule = LangOpts.ModuleName; 589 590 llvm::Triple T(TargetOpts.Triple); 591 llvm::Triple::ArchType Arch = T.getArch(); 592 593 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 594 CodeGenOpts.LargeDataThreshold = TargetOpts.LargeDataThreshold; 595 596 if (LangOpts.getExceptionHandling() != 597 LangOptions::ExceptionHandlingKind::None && 598 T.isWindowsMSVCEnvironment()) 599 Diags.Report(diag::err_fe_invalid_exception_model) 600 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 601 602 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 603 Diags.Report(diag::warn_c_kext); 604 605 if (LangOpts.NewAlignOverride && 606 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 607 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 608 Diags.Report(diag::err_fe_invalid_alignment) 609 << A->getAsString(Args) << A->getValue(); 610 LangOpts.NewAlignOverride = 0; 611 } 612 613 // The -f[no-]raw-string-literals option is only valid in C and in C++ 614 // standards before C++11. 615 if (LangOpts.CPlusPlus11) { 616 if (Args.hasArg(OPT_fraw_string_literals, OPT_fno_raw_string_literals)) { 617 Args.claimAllArgs(OPT_fraw_string_literals, OPT_fno_raw_string_literals); 618 Diags.Report(diag::warn_drv_fraw_string_literals_in_cxx11) 619 << bool(LangOpts.RawStringLiterals); 620 } 621 622 // Do not allow disabling raw string literals in C++11 or later. 623 LangOpts.RawStringLiterals = true; 624 } 625 626 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 627 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 628 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 629 << "-fsycl-is-host"; 630 631 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 632 Diags.Report(diag::err_drv_argument_not_allowed_with) 633 << "-fgnu89-inline" << GetInputKindName(IK); 634 635 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 636 Diags.Report(diag::err_drv_argument_not_allowed_with) 637 << "-hlsl-entry" << GetInputKindName(IK); 638 639 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 640 Diags.Report(diag::warn_ignored_hip_only_option) 641 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 642 643 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 644 Diags.Report(diag::warn_ignored_hip_only_option) 645 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 646 647 // When these options are used, the compiler is allowed to apply 648 // optimizations that may affect the final result. For example 649 // (x+y)+z is transformed to x+(y+z) but may not give the same 650 // final result; it's not value safe. 651 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 652 // or NaN. Final result may then differ. An error is issued when the eval 653 // method is set with one of these options. 654 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 655 if (LangOpts.ApproxFunc) 656 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 657 if (LangOpts.AllowFPReassoc) 658 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 659 if (LangOpts.AllowRecip) 660 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 661 } 662 663 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 664 // This option should be deprecated for CL > 1.0 because 665 // this option was added for compatibility with OpenCL 1.0. 666 if (Args.getLastArg(OPT_cl_strict_aliasing) && 667 (LangOpts.getOpenCLCompatibleVersion() > 100)) 668 Diags.Report(diag::warn_option_invalid_ocl_version) 669 << LangOpts.getOpenCLVersionString() 670 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 671 672 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 673 auto DefaultCC = LangOpts.getDefaultCallingConv(); 674 675 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 676 DefaultCC == LangOptions::DCC_StdCall) && 677 Arch != llvm::Triple::x86; 678 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 679 DefaultCC == LangOptions::DCC_RegCall) && 680 !T.isX86(); 681 emitError |= DefaultCC == LangOptions::DCC_RtdCall && Arch != llvm::Triple::m68k; 682 if (emitError) 683 Diags.Report(diag::err_drv_argument_not_allowed_with) 684 << A->getSpelling() << T.getTriple(); 685 } 686 687 return Diags.getNumErrors() == NumErrorsBefore; 688 } 689 690 //===----------------------------------------------------------------------===// 691 // Deserialization (from args) 692 //===----------------------------------------------------------------------===// 693 694 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 695 DiagnosticsEngine &Diags) { 696 unsigned DefaultOpt = 0; 697 if ((IK.getLanguage() == Language::OpenCL || 698 IK.getLanguage() == Language::OpenCLCXX) && 699 !Args.hasArg(OPT_cl_opt_disable)) 700 DefaultOpt = 2; 701 702 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 703 if (A->getOption().matches(options::OPT_O0)) 704 return 0; 705 706 if (A->getOption().matches(options::OPT_Ofast)) 707 return 3; 708 709 assert(A->getOption().matches(options::OPT_O)); 710 711 StringRef S(A->getValue()); 712 if (S == "s" || S == "z") 713 return 2; 714 715 if (S == "g") 716 return 1; 717 718 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 719 } 720 721 return DefaultOpt; 722 } 723 724 static unsigned getOptimizationLevelSize(ArgList &Args) { 725 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 726 if (A->getOption().matches(options::OPT_O)) { 727 switch (A->getValue()[0]) { 728 default: 729 return 0; 730 case 's': 731 return 1; 732 case 'z': 733 return 2; 734 } 735 } 736 } 737 return 0; 738 } 739 740 static void GenerateArg(ArgumentConsumer Consumer, 741 llvm::opt::OptSpecifier OptSpecifier) { 742 Option Opt = getDriverOptTable().getOption(OptSpecifier); 743 denormalizeSimpleFlag(Consumer, Opt.getPrefixedName(), 744 Option::OptionClass::FlagClass, 0); 745 } 746 747 static void GenerateArg(ArgumentConsumer Consumer, 748 llvm::opt::OptSpecifier OptSpecifier, 749 const Twine &Value) { 750 Option Opt = getDriverOptTable().getOption(OptSpecifier); 751 denormalizeString(Consumer, Opt.getPrefixedName(), Opt.getKind(), 0, Value); 752 } 753 754 // Parse command line arguments into CompilerInvocation. 755 using ParseFn = 756 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 757 DiagnosticsEngine &, const char *)>; 758 759 // Generate command line arguments from CompilerInvocation. 760 using GenerateFn = llvm::function_ref<void( 761 CompilerInvocation &, SmallVectorImpl<const char *> &, 762 CompilerInvocation::StringAllocator)>; 763 764 /// May perform round-trip of command line arguments. By default, the round-trip 765 /// is enabled in assert builds. This can be overwritten at run-time via the 766 /// "-round-trip-args" and "-no-round-trip-args" command line flags, or via the 767 /// ForceRoundTrip parameter. 768 /// 769 /// During round-trip, the command line arguments are parsed into a dummy 770 /// CompilerInvocation, which is used to generate the command line arguments 771 /// again. The real CompilerInvocation is then created by parsing the generated 772 /// arguments, not the original ones. This (in combination with tests covering 773 /// argument behavior) ensures the generated command line is complete (doesn't 774 /// drop/mangle any arguments). 775 /// 776 /// Finally, we check the command line that was used to create the real 777 /// CompilerInvocation instance. By default, we compare it to the command line 778 /// the real CompilerInvocation generates. This checks whether the generator is 779 /// deterministic. If \p CheckAgainstOriginalInvocation is enabled, we instead 780 /// compare it to the original command line to verify the original command-line 781 /// was canonical and can round-trip exactly. 782 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 783 CompilerInvocation &RealInvocation, 784 CompilerInvocation &DummyInvocation, 785 ArrayRef<const char *> CommandLineArgs, 786 DiagnosticsEngine &Diags, const char *Argv0, 787 bool CheckAgainstOriginalInvocation = false, 788 bool ForceRoundTrip = false) { 789 #ifndef NDEBUG 790 bool DoRoundTripDefault = true; 791 #else 792 bool DoRoundTripDefault = false; 793 #endif 794 795 bool DoRoundTrip = DoRoundTripDefault; 796 if (ForceRoundTrip) { 797 DoRoundTrip = true; 798 } else { 799 for (const auto *Arg : CommandLineArgs) { 800 if (Arg == StringRef("-round-trip-args")) 801 DoRoundTrip = true; 802 if (Arg == StringRef("-no-round-trip-args")) 803 DoRoundTrip = false; 804 } 805 } 806 807 // If round-trip was not requested, simply run the parser with the real 808 // invocation diagnostics. 809 if (!DoRoundTrip) 810 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 811 812 // Serializes quoted (and potentially escaped) arguments. 813 auto SerializeArgs = [](ArrayRef<const char *> Args) { 814 std::string Buffer; 815 llvm::raw_string_ostream OS(Buffer); 816 for (const char *Arg : Args) { 817 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 818 OS << ' '; 819 } 820 return Buffer; 821 }; 822 823 // Setup a dummy DiagnosticsEngine. 824 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 825 DummyDiags.setClient(new TextDiagnosticBuffer()); 826 827 // Run the first parse on the original arguments with the dummy invocation and 828 // diagnostics. 829 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 830 DummyDiags.getNumWarnings() != 0) { 831 // If the first parse did not succeed, it must be user mistake (invalid 832 // command line arguments). We won't be able to generate arguments that 833 // would reproduce the same result. Let's fail again with the real 834 // invocation and diagnostics, so all side-effects of parsing are visible. 835 unsigned NumWarningsBefore = Diags.getNumWarnings(); 836 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 837 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 838 return Success; 839 840 // Parse with original options and diagnostics succeeded even though it 841 // shouldn't have. Something is off. 842 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 843 Diags.Report(diag::note_cc1_round_trip_original) 844 << SerializeArgs(CommandLineArgs); 845 return false; 846 } 847 848 // Setup string allocator. 849 llvm::BumpPtrAllocator Alloc; 850 llvm::StringSaver StringPool(Alloc); 851 auto SA = [&StringPool](const Twine &Arg) { 852 return StringPool.save(Arg).data(); 853 }; 854 855 // Generate arguments from the dummy invocation. If Generate is the 856 // inverse of Parse, the newly generated arguments must have the same 857 // semantics as the original. 858 SmallVector<const char *> GeneratedArgs; 859 Generate(DummyInvocation, GeneratedArgs, SA); 860 861 // Run the second parse, now on the generated arguments, and with the real 862 // invocation and diagnostics. The result is what we will end up using for the 863 // rest of compilation, so if Generate is not inverse of Parse, something down 864 // the line will break. 865 bool Success2 = Parse(RealInvocation, GeneratedArgs, Diags, Argv0); 866 867 // The first parse on original arguments succeeded, but second parse of 868 // generated arguments failed. Something must be wrong with the generator. 869 if (!Success2) { 870 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 871 Diags.Report(diag::note_cc1_round_trip_generated) 872 << 1 << SerializeArgs(GeneratedArgs); 873 return false; 874 } 875 876 SmallVector<const char *> ComparisonArgs; 877 if (CheckAgainstOriginalInvocation) 878 // Compare against original arguments. 879 ComparisonArgs.assign(CommandLineArgs.begin(), CommandLineArgs.end()); 880 else 881 // Generate arguments again, this time from the options we will end up using 882 // for the rest of the compilation. 883 Generate(RealInvocation, ComparisonArgs, SA); 884 885 // Compares two lists of arguments. 886 auto Equal = [](const ArrayRef<const char *> A, 887 const ArrayRef<const char *> B) { 888 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 889 [](const char *AElem, const char *BElem) { 890 return StringRef(AElem) == StringRef(BElem); 891 }); 892 }; 893 894 // If we generated different arguments from what we assume are two 895 // semantically equivalent CompilerInvocations, the Generate function may 896 // be non-deterministic. 897 if (!Equal(GeneratedArgs, ComparisonArgs)) { 898 Diags.Report(diag::err_cc1_round_trip_mismatch); 899 Diags.Report(diag::note_cc1_round_trip_generated) 900 << 1 << SerializeArgs(GeneratedArgs); 901 Diags.Report(diag::note_cc1_round_trip_generated) 902 << 2 << SerializeArgs(ComparisonArgs); 903 return false; 904 } 905 906 Diags.Report(diag::remark_cc1_round_trip_generated) 907 << 1 << SerializeArgs(GeneratedArgs); 908 Diags.Report(diag::remark_cc1_round_trip_generated) 909 << 2 << SerializeArgs(ComparisonArgs); 910 911 return Success2; 912 } 913 914 bool CompilerInvocation::checkCC1RoundTrip(ArrayRef<const char *> Args, 915 DiagnosticsEngine &Diags, 916 const char *Argv0) { 917 CompilerInvocation DummyInvocation1, DummyInvocation2; 918 return RoundTrip( 919 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 920 DiagnosticsEngine &Diags, const char *Argv0) { 921 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 922 }, 923 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 924 StringAllocator SA) { 925 Args.push_back("-cc1"); 926 Invocation.generateCC1CommandLine(Args, SA); 927 }, 928 DummyInvocation1, DummyInvocation2, Args, Diags, Argv0, 929 /*CheckAgainstOriginalInvocation=*/true, /*ForceRoundTrip=*/true); 930 } 931 932 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 933 OptSpecifier GroupWithValue, 934 std::vector<std::string> &Diagnostics) { 935 for (auto *A : Args.filtered(Group)) { 936 if (A->getOption().getKind() == Option::FlagClass) { 937 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 938 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 939 Diagnostics.push_back( 940 std::string(A->getOption().getName().drop_front(1))); 941 } else if (A->getOption().matches(GroupWithValue)) { 942 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 943 // group. Add only the group name to the diagnostics. 944 Diagnostics.push_back( 945 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 946 } else { 947 // Otherwise, add its value (for OPT_W_Joined and similar). 948 Diagnostics.push_back(A->getValue()); 949 } 950 } 951 } 952 953 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 954 // it won't verify the input. 955 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 956 DiagnosticsEngine *Diags); 957 958 static void getAllNoBuiltinFuncValues(ArgList &Args, 959 std::vector<std::string> &Funcs) { 960 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 961 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 962 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 963 } 964 965 static void GenerateAnalyzerArgs(const AnalyzerOptions &Opts, 966 ArgumentConsumer Consumer) { 967 const AnalyzerOptions *AnalyzerOpts = &Opts; 968 969 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 970 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 971 #include "clang/Driver/Options.inc" 972 #undef ANALYZER_OPTION_WITH_MARSHALLING 973 974 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 975 switch (Opts.AnalysisConstraintsOpt) { 976 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 977 case NAME##Model: \ 978 GenerateArg(Consumer, OPT_analyzer_constraints, CMDFLAG); \ 979 break; 980 #include "clang/StaticAnalyzer/Core/Analyses.def" 981 default: 982 llvm_unreachable("Tried to generate unknown analysis constraint."); 983 } 984 } 985 986 if (Opts.AnalysisDiagOpt != PD_HTML) { 987 switch (Opts.AnalysisDiagOpt) { 988 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 989 case PD_##NAME: \ 990 GenerateArg(Consumer, OPT_analyzer_output, CMDFLAG); \ 991 break; 992 #include "clang/StaticAnalyzer/Core/Analyses.def" 993 default: 994 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 995 } 996 } 997 998 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 999 switch (Opts.AnalysisPurgeOpt) { 1000 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1001 case NAME: \ 1002 GenerateArg(Consumer, OPT_analyzer_purge, CMDFLAG); \ 1003 break; 1004 #include "clang/StaticAnalyzer/Core/Analyses.def" 1005 default: 1006 llvm_unreachable("Tried to generate unknown analysis purge mode."); 1007 } 1008 } 1009 1010 if (Opts.InliningMode != NoRedundancy) { 1011 switch (Opts.InliningMode) { 1012 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1013 case NAME: \ 1014 GenerateArg(Consumer, OPT_analyzer_inlining_mode, CMDFLAG); \ 1015 break; 1016 #include "clang/StaticAnalyzer/Core/Analyses.def" 1017 default: 1018 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 1019 } 1020 } 1021 1022 for (const auto &CP : Opts.CheckersAndPackages) { 1023 OptSpecifier Opt = 1024 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 1025 GenerateArg(Consumer, Opt, CP.first); 1026 } 1027 1028 AnalyzerOptions ConfigOpts; 1029 parseAnalyzerConfigs(ConfigOpts, nullptr); 1030 1031 // Sort options by key to avoid relying on StringMap iteration order. 1032 SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts; 1033 for (const auto &C : Opts.Config) 1034 SortedConfigOpts.emplace_back(C.getKey(), C.getValue()); 1035 llvm::sort(SortedConfigOpts, llvm::less_first()); 1036 1037 for (const auto &[Key, Value] : SortedConfigOpts) { 1038 // Don't generate anything that came from parseAnalyzerConfigs. It would be 1039 // redundant and may not be valid on the command line. 1040 auto Entry = ConfigOpts.Config.find(Key); 1041 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value) 1042 continue; 1043 1044 GenerateArg(Consumer, OPT_analyzer_config, Key + "=" + Value); 1045 } 1046 1047 // Nothing to generate for FullCompilerInvocation. 1048 } 1049 1050 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 1051 DiagnosticsEngine &Diags) { 1052 unsigned NumErrorsBefore = Diags.getNumErrors(); 1053 1054 AnalyzerOptions *AnalyzerOpts = &Opts; 1055 1056 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 1057 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1058 #include "clang/Driver/Options.inc" 1059 #undef ANALYZER_OPTION_WITH_MARSHALLING 1060 1061 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 1062 StringRef Name = A->getValue(); 1063 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 1064 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1065 .Case(CMDFLAG, NAME##Model) 1066 #include "clang/StaticAnalyzer/Core/Analyses.def" 1067 .Default(NumConstraints); 1068 if (Value == NumConstraints) { 1069 Diags.Report(diag::err_drv_invalid_value) 1070 << A->getAsString(Args) << Name; 1071 } else { 1072 #ifndef LLVM_WITH_Z3 1073 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 1074 Diags.Report(diag::err_analyzer_not_built_with_z3); 1075 } 1076 #endif // LLVM_WITH_Z3 1077 Opts.AnalysisConstraintsOpt = Value; 1078 } 1079 } 1080 1081 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 1082 StringRef Name = A->getValue(); 1083 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 1084 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 1085 .Case(CMDFLAG, PD_##NAME) 1086 #include "clang/StaticAnalyzer/Core/Analyses.def" 1087 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 1088 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 1089 Diags.Report(diag::err_drv_invalid_value) 1090 << A->getAsString(Args) << Name; 1091 } else { 1092 Opts.AnalysisDiagOpt = Value; 1093 } 1094 } 1095 1096 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 1097 StringRef Name = A->getValue(); 1098 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 1099 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1100 .Case(CMDFLAG, NAME) 1101 #include "clang/StaticAnalyzer/Core/Analyses.def" 1102 .Default(NumPurgeModes); 1103 if (Value == NumPurgeModes) { 1104 Diags.Report(diag::err_drv_invalid_value) 1105 << A->getAsString(Args) << Name; 1106 } else { 1107 Opts.AnalysisPurgeOpt = Value; 1108 } 1109 } 1110 1111 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1112 StringRef Name = A->getValue(); 1113 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1114 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1115 .Case(CMDFLAG, NAME) 1116 #include "clang/StaticAnalyzer/Core/Analyses.def" 1117 .Default(NumInliningModes); 1118 if (Value == NumInliningModes) { 1119 Diags.Report(diag::err_drv_invalid_value) 1120 << A->getAsString(Args) << Name; 1121 } else { 1122 Opts.InliningMode = Value; 1123 } 1124 } 1125 1126 Opts.CheckersAndPackages.clear(); 1127 for (const Arg *A : 1128 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 1129 A->claim(); 1130 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 1131 // We can have a list of comma separated checker names, e.g: 1132 // '-analyzer-checker=cocoa,unix' 1133 StringRef CheckerAndPackageList = A->getValue(); 1134 SmallVector<StringRef, 16> CheckersAndPackages; 1135 CheckerAndPackageList.split(CheckersAndPackages, ","); 1136 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 1137 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 1138 IsEnabled); 1139 } 1140 1141 // Go through the analyzer configuration options. 1142 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 1143 1144 // We can have a list of comma separated config names, e.g: 1145 // '-analyzer-config key1=val1,key2=val2' 1146 StringRef configList = A->getValue(); 1147 SmallVector<StringRef, 4> configVals; 1148 configList.split(configVals, ","); 1149 for (const auto &configVal : configVals) { 1150 StringRef key, val; 1151 std::tie(key, val) = configVal.split("="); 1152 if (val.empty()) { 1153 Diags.Report(SourceLocation(), 1154 diag::err_analyzer_config_no_value) << configVal; 1155 break; 1156 } 1157 if (val.contains('=')) { 1158 Diags.Report(SourceLocation(), 1159 diag::err_analyzer_config_multiple_values) 1160 << configVal; 1161 break; 1162 } 1163 1164 // TODO: Check checker options too, possibly in CheckerRegistry. 1165 // Leave unknown non-checker configs unclaimed. 1166 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1167 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1168 Diags.Report(diag::err_analyzer_config_unknown) << key; 1169 continue; 1170 } 1171 1172 A->claim(); 1173 Opts.Config[key] = std::string(val); 1174 } 1175 } 1176 1177 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1178 parseAnalyzerConfigs(Opts, &Diags); 1179 else 1180 parseAnalyzerConfigs(Opts, nullptr); 1181 1182 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1183 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1184 if (i != 0) 1185 os << " "; 1186 os << Args.getArgString(i); 1187 } 1188 1189 return Diags.getNumErrors() == NumErrorsBefore; 1190 } 1191 1192 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1193 StringRef OptionName, StringRef DefaultVal) { 1194 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1195 } 1196 1197 static void initOption(AnalyzerOptions::ConfigTable &Config, 1198 DiagnosticsEngine *Diags, 1199 StringRef &OptionField, StringRef Name, 1200 StringRef DefaultVal) { 1201 // String options may be known to invalid (e.g. if the expected string is a 1202 // file name, but the file does not exist), those will have to be checked in 1203 // parseConfigs. 1204 OptionField = getStringOption(Config, Name, DefaultVal); 1205 } 1206 1207 static void initOption(AnalyzerOptions::ConfigTable &Config, 1208 DiagnosticsEngine *Diags, 1209 bool &OptionField, StringRef Name, bool DefaultVal) { 1210 auto PossiblyInvalidVal = 1211 llvm::StringSwitch<std::optional<bool>>( 1212 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1213 .Case("true", true) 1214 .Case("false", false) 1215 .Default(std::nullopt); 1216 1217 if (!PossiblyInvalidVal) { 1218 if (Diags) 1219 Diags->Report(diag::err_analyzer_config_invalid_input) 1220 << Name << "a boolean"; 1221 else 1222 OptionField = DefaultVal; 1223 } else 1224 OptionField = *PossiblyInvalidVal; 1225 } 1226 1227 static void initOption(AnalyzerOptions::ConfigTable &Config, 1228 DiagnosticsEngine *Diags, 1229 unsigned &OptionField, StringRef Name, 1230 unsigned DefaultVal) { 1231 1232 OptionField = DefaultVal; 1233 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1234 .getAsInteger(0, OptionField); 1235 if (Diags && HasFailed) 1236 Diags->Report(diag::err_analyzer_config_invalid_input) 1237 << Name << "an unsigned"; 1238 } 1239 1240 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1241 DiagnosticsEngine *Diags) { 1242 // TODO: There's no need to store the entire configtable, it'd be plenty 1243 // enough to store checker options. 1244 1245 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1246 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1247 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1248 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1249 1250 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1251 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1252 1253 #define ANALYZER_OPTION(...) 1254 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1255 SHALLOW_VAL, DEEP_VAL) \ 1256 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1257 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1258 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1259 1260 // At this point, AnalyzerOptions is configured. Let's validate some options. 1261 1262 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1263 // The current approach only validates the registered checkers which does not 1264 // contain the runtime enabled checkers and optimally we would validate both. 1265 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1266 std::vector<StringRef> Checkers = 1267 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1268 std::vector<StringRef> Packages = 1269 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1270 1271 SmallVector<StringRef, 16> CheckersAndPackages; 1272 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1273 1274 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1275 if (Diags) { 1276 bool IsChecker = CheckerOrPackage.contains('.'); 1277 bool IsValidName = IsChecker 1278 ? llvm::is_contained(Checkers, CheckerOrPackage) 1279 : llvm::is_contained(Packages, CheckerOrPackage); 1280 1281 if (!IsValidName) 1282 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1283 << CheckerOrPackage; 1284 } 1285 1286 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1287 } 1288 } 1289 1290 if (!Diags) 1291 return; 1292 1293 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1294 Diags->Report(diag::err_analyzer_config_invalid_input) 1295 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1296 1297 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1298 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1299 << "a filename"; 1300 1301 if (!AnOpts.ModelPath.empty() && 1302 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1303 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1304 << "a filename"; 1305 } 1306 1307 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1308 static void 1309 GenerateOptimizationRemark(ArgumentConsumer Consumer, OptSpecifier OptEQ, 1310 StringRef Name, 1311 const CodeGenOptions::OptRemark &Remark) { 1312 if (Remark.hasValidPattern()) { 1313 GenerateArg(Consumer, OptEQ, Remark.Pattern); 1314 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1315 GenerateArg(Consumer, OPT_R_Joined, Name); 1316 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1317 GenerateArg(Consumer, OPT_R_Joined, StringRef("no-") + Name); 1318 } 1319 } 1320 1321 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1322 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1323 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1324 static CodeGenOptions::OptRemark 1325 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1326 OptSpecifier OptEQ, StringRef Name) { 1327 CodeGenOptions::OptRemark Result; 1328 1329 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1330 StringRef Pattern) { 1331 Result.Pattern = Pattern.str(); 1332 1333 std::string RegexError; 1334 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1335 if (!Result.Regex->isValid(RegexError)) { 1336 Diags.Report(diag::err_drv_optimization_remark_pattern) 1337 << RegexError << A->getAsString(Args); 1338 return false; 1339 } 1340 1341 return true; 1342 }; 1343 1344 for (Arg *A : Args) { 1345 if (A->getOption().matches(OPT_R_Joined)) { 1346 StringRef Value = A->getValue(); 1347 1348 if (Value == Name) 1349 Result.Kind = CodeGenOptions::RK_Enabled; 1350 else if (Value == "everything") 1351 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1352 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1353 Result.Kind = CodeGenOptions::RK_Disabled; 1354 else if (Value == "no-everything") 1355 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1356 else 1357 continue; 1358 1359 if (Result.Kind == CodeGenOptions::RK_Disabled || 1360 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1361 Result.Pattern = ""; 1362 Result.Regex = nullptr; 1363 } else { 1364 InitializeResultPattern(A, ".*"); 1365 } 1366 } else if (A->getOption().matches(OptEQ)) { 1367 Result.Kind = CodeGenOptions::RK_WithPattern; 1368 if (!InitializeResultPattern(A, A->getValue())) 1369 return CodeGenOptions::OptRemark(); 1370 } 1371 } 1372 1373 return Result; 1374 } 1375 1376 static bool parseDiagnosticLevelMask(StringRef FlagName, 1377 const std::vector<std::string> &Levels, 1378 DiagnosticsEngine &Diags, 1379 DiagnosticLevelMask &M) { 1380 bool Success = true; 1381 for (const auto &Level : Levels) { 1382 DiagnosticLevelMask const PM = 1383 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1384 .Case("note", DiagnosticLevelMask::Note) 1385 .Case("remark", DiagnosticLevelMask::Remark) 1386 .Case("warning", DiagnosticLevelMask::Warning) 1387 .Case("error", DiagnosticLevelMask::Error) 1388 .Default(DiagnosticLevelMask::None); 1389 if (PM == DiagnosticLevelMask::None) { 1390 Success = false; 1391 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1392 } 1393 M = M | PM; 1394 } 1395 return Success; 1396 } 1397 1398 static void parseSanitizerKinds(StringRef FlagName, 1399 const std::vector<std::string> &Sanitizers, 1400 DiagnosticsEngine &Diags, SanitizerSet &S) { 1401 for (const auto &Sanitizer : Sanitizers) { 1402 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1403 if (K == SanitizerMask()) 1404 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1405 else 1406 S.set(K, true); 1407 } 1408 } 1409 1410 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1411 SmallVector<StringRef, 4> Values; 1412 serializeSanitizerSet(S, Values); 1413 return Values; 1414 } 1415 1416 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1417 ArgList &Args, DiagnosticsEngine &D, 1418 XRayInstrSet &S) { 1419 llvm::SmallVector<StringRef, 2> BundleParts; 1420 llvm::SplitString(Bundle, BundleParts, ","); 1421 for (const auto &B : BundleParts) { 1422 auto Mask = parseXRayInstrValue(B); 1423 if (Mask == XRayInstrKind::None) 1424 if (B != "none") 1425 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1426 else 1427 S.Mask = Mask; 1428 else if (Mask == XRayInstrKind::All) 1429 S.Mask = Mask; 1430 else 1431 S.set(Mask, true); 1432 } 1433 } 1434 1435 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1436 llvm::SmallVector<StringRef, 2> BundleParts; 1437 serializeXRayInstrValue(S, BundleParts); 1438 std::string Buffer; 1439 llvm::raw_string_ostream OS(Buffer); 1440 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1441 return Buffer; 1442 } 1443 1444 // Set the profile kind using fprofile-instrument-use-path. 1445 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1446 const Twine &ProfileName, 1447 llvm::vfs::FileSystem &FS, 1448 DiagnosticsEngine &Diags) { 1449 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName, FS); 1450 if (auto E = ReaderOrErr.takeError()) { 1451 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1452 "Error in reading profile %0: %1"); 1453 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1454 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1455 }); 1456 return; 1457 } 1458 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1459 std::move(ReaderOrErr.get()); 1460 // Currently memprof profiles are only added at the IR level. Mark the profile 1461 // type as IR in that case as well and the subsequent matching needs to detect 1462 // which is available (might be one or both). 1463 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1464 if (PGOReader->hasCSIRLevelProfile()) 1465 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1466 else 1467 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1468 } else 1469 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1470 } 1471 1472 void CompilerInvocation::setDefaultPointerAuthOptions( 1473 PointerAuthOptions &Opts, const LangOptions &LangOpts, 1474 const llvm::Triple &Triple) { 1475 assert(Triple.getArch() == llvm::Triple::aarch64); 1476 if (LangOpts.PointerAuthCalls) { 1477 using Key = PointerAuthSchema::ARM8_3Key; 1478 using Discrimination = PointerAuthSchema::Discrimination; 1479 // If you change anything here, be sure to update <ptrauth.h>. 1480 Opts.FunctionPointers = PointerAuthSchema( 1481 Key::ASIA, false, 1482 LangOpts.PointerAuthFunctionTypeDiscrimination ? Discrimination::Type 1483 : Discrimination::None); 1484 1485 Opts.CXXVTablePointers = PointerAuthSchema( 1486 Key::ASDA, LangOpts.PointerAuthVTPtrAddressDiscrimination, 1487 LangOpts.PointerAuthVTPtrTypeDiscrimination ? Discrimination::Type 1488 : Discrimination::None); 1489 1490 if (LangOpts.PointerAuthTypeInfoVTPtrDiscrimination) 1491 Opts.CXXTypeInfoVTablePointer = 1492 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1493 StdTypeInfoVTablePointerConstantDiscrimination); 1494 else 1495 Opts.CXXTypeInfoVTablePointer = 1496 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1497 1498 Opts.CXXVTTVTablePointers = 1499 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1500 Opts.CXXVirtualFunctionPointers = Opts.CXXVirtualVariadicFunctionPointers = 1501 PointerAuthSchema(Key::ASIA, true, Discrimination::Decl); 1502 Opts.CXXMemberFunctionPointers = 1503 PointerAuthSchema(Key::ASIA, false, Discrimination::Type); 1504 1505 if (LangOpts.PointerAuthInitFini) { 1506 Opts.InitFiniPointers = PointerAuthSchema( 1507 Key::ASIA, LangOpts.PointerAuthInitFiniAddressDiscrimination, 1508 Discrimination::Constant, InitFiniPointerConstantDiscriminator); 1509 } 1510 } 1511 Opts.ReturnAddresses = LangOpts.PointerAuthReturns; 1512 Opts.AuthTraps = LangOpts.PointerAuthAuthTraps; 1513 Opts.IndirectGotos = LangOpts.PointerAuthIndirectGotos; 1514 } 1515 1516 static void parsePointerAuthOptions(PointerAuthOptions &Opts, 1517 const LangOptions &LangOpts, 1518 const llvm::Triple &Triple, 1519 DiagnosticsEngine &Diags) { 1520 if (!LangOpts.PointerAuthCalls && !LangOpts.PointerAuthReturns && 1521 !LangOpts.PointerAuthAuthTraps && !LangOpts.PointerAuthIndirectGotos) 1522 return; 1523 1524 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple); 1525 } 1526 1527 void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts, 1528 ArgumentConsumer Consumer, 1529 const llvm::Triple &T, 1530 const std::string &OutputFile, 1531 const LangOptions *LangOpts) { 1532 const CodeGenOptions &CodeGenOpts = Opts; 1533 1534 if (Opts.OptimizationLevel == 0) 1535 GenerateArg(Consumer, OPT_O0); 1536 else 1537 GenerateArg(Consumer, OPT_O, Twine(Opts.OptimizationLevel)); 1538 1539 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1540 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 1541 #include "clang/Driver/Options.inc" 1542 #undef CODEGEN_OPTION_WITH_MARSHALLING 1543 1544 if (Opts.OptimizationLevel > 0) { 1545 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1546 GenerateArg(Consumer, OPT_finline_functions); 1547 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1548 GenerateArg(Consumer, OPT_finline_hint_functions); 1549 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1550 GenerateArg(Consumer, OPT_fno_inline); 1551 } 1552 1553 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1554 GenerateArg(Consumer, OPT_fdirect_access_external_data); 1555 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1556 GenerateArg(Consumer, OPT_fno_direct_access_external_data); 1557 1558 std::optional<StringRef> DebugInfoVal; 1559 switch (Opts.DebugInfo) { 1560 case llvm::codegenoptions::DebugLineTablesOnly: 1561 DebugInfoVal = "line-tables-only"; 1562 break; 1563 case llvm::codegenoptions::DebugDirectivesOnly: 1564 DebugInfoVal = "line-directives-only"; 1565 break; 1566 case llvm::codegenoptions::DebugInfoConstructor: 1567 DebugInfoVal = "constructor"; 1568 break; 1569 case llvm::codegenoptions::LimitedDebugInfo: 1570 DebugInfoVal = "limited"; 1571 break; 1572 case llvm::codegenoptions::FullDebugInfo: 1573 DebugInfoVal = "standalone"; 1574 break; 1575 case llvm::codegenoptions::UnusedTypeInfo: 1576 DebugInfoVal = "unused-types"; 1577 break; 1578 case llvm::codegenoptions::NoDebugInfo: // default value 1579 DebugInfoVal = std::nullopt; 1580 break; 1581 case llvm::codegenoptions::LocTrackingOnly: // implied value 1582 DebugInfoVal = std::nullopt; 1583 break; 1584 } 1585 if (DebugInfoVal) 1586 GenerateArg(Consumer, OPT_debug_info_kind_EQ, *DebugInfoVal); 1587 1588 for (const auto &Prefix : Opts.DebugPrefixMap) 1589 GenerateArg(Consumer, OPT_fdebug_prefix_map_EQ, 1590 Prefix.first + "=" + Prefix.second); 1591 1592 for (const auto &Prefix : Opts.CoveragePrefixMap) 1593 GenerateArg(Consumer, OPT_fcoverage_prefix_map_EQ, 1594 Prefix.first + "=" + Prefix.second); 1595 1596 if (Opts.NewStructPathTBAA) 1597 GenerateArg(Consumer, OPT_new_struct_path_tbaa); 1598 1599 if (Opts.OptimizeSize == 1) 1600 GenerateArg(Consumer, OPT_O, "s"); 1601 else if (Opts.OptimizeSize == 2) 1602 GenerateArg(Consumer, OPT_O, "z"); 1603 1604 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1605 // -ffreestanding. We'll consider that when generating them. 1606 1607 // NoBuiltinFuncs are generated by LangOptions. 1608 1609 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1610 GenerateArg(Consumer, OPT_funroll_loops); 1611 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1612 GenerateArg(Consumer, OPT_fno_unroll_loops); 1613 1614 if (!Opts.BinutilsVersion.empty()) 1615 GenerateArg(Consumer, OPT_fbinutils_version_EQ, Opts.BinutilsVersion); 1616 1617 if (Opts.DebugNameTable == 1618 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1619 GenerateArg(Consumer, OPT_ggnu_pubnames); 1620 else if (Opts.DebugNameTable == 1621 static_cast<unsigned>( 1622 llvm::DICompileUnit::DebugNameTableKind::Default)) 1623 GenerateArg(Consumer, OPT_gpubnames); 1624 1625 if (Opts.DebugTemplateAlias) 1626 GenerateArg(Consumer, OPT_gtemplate_alias); 1627 1628 auto TNK = Opts.getDebugSimpleTemplateNames(); 1629 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) { 1630 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple) 1631 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "simple"); 1632 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled) 1633 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "mangled"); 1634 } 1635 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1636 // it or PGOUseInstrumentor. 1637 1638 if (Opts.TimePasses) { 1639 if (Opts.TimePassesPerRun) 1640 GenerateArg(Consumer, OPT_ftime_report_EQ, "per-pass-run"); 1641 else 1642 GenerateArg(Consumer, OPT_ftime_report); 1643 } 1644 1645 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1646 GenerateArg(Consumer, OPT_flto_EQ, "full"); 1647 1648 if (Opts.PrepareForThinLTO) 1649 GenerateArg(Consumer, OPT_flto_EQ, "thin"); 1650 1651 if (!Opts.ThinLTOIndexFile.empty()) 1652 GenerateArg(Consumer, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile); 1653 1654 if (Opts.SaveTempsFilePrefix == OutputFile) 1655 GenerateArg(Consumer, OPT_save_temps_EQ, "obj"); 1656 1657 StringRef MemProfileBasename("memprof.profraw"); 1658 if (!Opts.MemoryProfileOutput.empty()) { 1659 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1660 GenerateArg(Consumer, OPT_fmemory_profile); 1661 } else { 1662 size_t ArgLength = 1663 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1664 GenerateArg(Consumer, OPT_fmemory_profile_EQ, 1665 Opts.MemoryProfileOutput.substr(0, ArgLength)); 1666 } 1667 } 1668 1669 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1670 GenerateArg(Consumer, OPT_coverage_version_EQ, 1671 StringRef(Opts.CoverageVersion, 4)); 1672 1673 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1674 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1675 // won't be generated.) 1676 1677 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1678 std::string InstrBundle = 1679 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1680 if (!InstrBundle.empty()) 1681 GenerateArg(Consumer, OPT_fxray_instrumentation_bundle, InstrBundle); 1682 } 1683 1684 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1685 GenerateArg(Consumer, OPT_fcf_protection_EQ, "full"); 1686 else if (Opts.CFProtectionReturn) 1687 GenerateArg(Consumer, OPT_fcf_protection_EQ, "return"); 1688 else if (Opts.CFProtectionBranch) 1689 GenerateArg(Consumer, OPT_fcf_protection_EQ, "branch"); 1690 1691 if (Opts.FunctionReturnThunks) 1692 GenerateArg(Consumer, OPT_mfunction_return_EQ, "thunk-extern"); 1693 1694 for (const auto &F : Opts.LinkBitcodeFiles) { 1695 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1696 F.PropagateAttrs && F.Internalize; 1697 GenerateArg(Consumer, 1698 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1699 F.Filename); 1700 } 1701 1702 if (Opts.EmulatedTLS) 1703 GenerateArg(Consumer, OPT_femulated_tls); 1704 1705 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1706 GenerateArg(Consumer, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str()); 1707 1708 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1709 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1710 GenerateArg(Consumer, OPT_fdenormal_fp_math_f32_EQ, 1711 Opts.FP32DenormalMode.str()); 1712 1713 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1714 OptSpecifier Opt = 1715 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1716 GenerateArg(Consumer, Opt); 1717 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1718 OptSpecifier Opt = 1719 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1720 GenerateArg(Consumer, Opt); 1721 } 1722 1723 if (Opts.EnableAIXExtendedAltivecABI) 1724 GenerateArg(Consumer, OPT_mabi_EQ_vec_extabi); 1725 1726 if (Opts.XCOFFReadOnlyPointers) 1727 GenerateArg(Consumer, OPT_mxcoff_roptr); 1728 1729 if (!Opts.OptRecordPasses.empty()) 1730 GenerateArg(Consumer, OPT_opt_record_passes, Opts.OptRecordPasses); 1731 1732 if (!Opts.OptRecordFormat.empty()) 1733 GenerateArg(Consumer, OPT_opt_record_format, Opts.OptRecordFormat); 1734 1735 GenerateOptimizationRemark(Consumer, OPT_Rpass_EQ, "pass", 1736 Opts.OptimizationRemark); 1737 1738 GenerateOptimizationRemark(Consumer, OPT_Rpass_missed_EQ, "pass-missed", 1739 Opts.OptimizationRemarkMissed); 1740 1741 GenerateOptimizationRemark(Consumer, OPT_Rpass_analysis_EQ, "pass-analysis", 1742 Opts.OptimizationRemarkAnalysis); 1743 1744 GenerateArg(Consumer, OPT_fdiagnostics_hotness_threshold_EQ, 1745 Opts.DiagnosticsHotnessThreshold 1746 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1747 : "auto"); 1748 1749 GenerateArg(Consumer, OPT_fdiagnostics_misexpect_tolerance_EQ, 1750 Twine(*Opts.DiagnosticsMisExpectTolerance)); 1751 1752 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1753 GenerateArg(Consumer, OPT_fsanitize_recover_EQ, Sanitizer); 1754 1755 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1756 GenerateArg(Consumer, OPT_fsanitize_trap_EQ, Sanitizer); 1757 1758 if (!Opts.EmitVersionIdentMetadata) 1759 GenerateArg(Consumer, OPT_Qn); 1760 1761 switch (Opts.FiniteLoops) { 1762 case CodeGenOptions::FiniteLoopsKind::Language: 1763 break; 1764 case CodeGenOptions::FiniteLoopsKind::Always: 1765 GenerateArg(Consumer, OPT_ffinite_loops); 1766 break; 1767 case CodeGenOptions::FiniteLoopsKind::Never: 1768 GenerateArg(Consumer, OPT_fno_finite_loops); 1769 break; 1770 } 1771 } 1772 1773 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1774 InputKind IK, 1775 DiagnosticsEngine &Diags, 1776 const llvm::Triple &T, 1777 const std::string &OutputFile, 1778 const LangOptions &LangOptsRef) { 1779 unsigned NumErrorsBefore = Diags.getNumErrors(); 1780 1781 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1782 // TODO: This could be done in Driver 1783 unsigned MaxOptLevel = 3; 1784 if (OptimizationLevel > MaxOptLevel) { 1785 // If the optimization level is not supported, fall back on the default 1786 // optimization 1787 Diags.Report(diag::warn_drv_optimization_value) 1788 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1789 OptimizationLevel = MaxOptLevel; 1790 } 1791 Opts.OptimizationLevel = OptimizationLevel; 1792 1793 // The key paths of codegen options defined in Options.td start with 1794 // "CodeGenOpts.". Let's provide the expected variable name and type. 1795 CodeGenOptions &CodeGenOpts = Opts; 1796 // Some codegen options depend on language options. Let's provide the expected 1797 // variable name and type. 1798 const LangOptions *LangOpts = &LangOptsRef; 1799 1800 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1801 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1802 #include "clang/Driver/Options.inc" 1803 #undef CODEGEN_OPTION_WITH_MARSHALLING 1804 1805 // At O0 we want to fully disable inlining outside of cases marked with 1806 // 'alwaysinline' that are required for correctness. 1807 if (Opts.OptimizationLevel == 0) { 1808 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1809 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1810 options::OPT_finline_hint_functions, 1811 options::OPT_fno_inline_functions, 1812 options::OPT_fno_inline)) { 1813 // Explicit inlining flags can disable some or all inlining even at 1814 // optimization levels above zero. 1815 if (A->getOption().matches(options::OPT_finline_functions)) 1816 Opts.setInlining(CodeGenOptions::NormalInlining); 1817 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1818 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1819 else 1820 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1821 } else { 1822 Opts.setInlining(CodeGenOptions::NormalInlining); 1823 } 1824 1825 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1826 // -fdirect-access-external-data. 1827 Opts.DirectAccessExternalData = 1828 Args.hasArg(OPT_fdirect_access_external_data) || 1829 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1830 LangOpts->PICLevel == 0); 1831 1832 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1833 unsigned Val = 1834 llvm::StringSwitch<unsigned>(A->getValue()) 1835 .Case("line-tables-only", llvm::codegenoptions::DebugLineTablesOnly) 1836 .Case("line-directives-only", 1837 llvm::codegenoptions::DebugDirectivesOnly) 1838 .Case("constructor", llvm::codegenoptions::DebugInfoConstructor) 1839 .Case("limited", llvm::codegenoptions::LimitedDebugInfo) 1840 .Case("standalone", llvm::codegenoptions::FullDebugInfo) 1841 .Case("unused-types", llvm::codegenoptions::UnusedTypeInfo) 1842 .Default(~0U); 1843 if (Val == ~0U) 1844 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1845 << A->getValue(); 1846 else 1847 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val)); 1848 } 1849 1850 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1851 // constructor homing, and vice versa for -fno-use-ctor-homing. 1852 if (const Arg *A = 1853 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1854 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1855 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo) 1856 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor); 1857 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1858 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor) 1859 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo); 1860 } 1861 1862 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1863 auto Split = StringRef(Arg).split('='); 1864 Opts.DebugPrefixMap.emplace_back(Split.first, Split.second); 1865 } 1866 1867 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1868 auto Split = StringRef(Arg).split('='); 1869 Opts.CoveragePrefixMap.emplace_back(Split.first, Split.second); 1870 } 1871 1872 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1873 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1874 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1875 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1876 1877 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1878 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1879 Opts.EmitCallSiteInfo = true; 1880 1881 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1882 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1883 << Opts.DIBugsReportFilePath; 1884 Opts.DIBugsReportFilePath = ""; 1885 } 1886 1887 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1888 Args.hasArg(OPT_new_struct_path_tbaa); 1889 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1890 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1891 if (Opts.SimplifyLibCalls) 1892 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1893 Opts.UnrollLoops = 1894 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1895 (Opts.OptimizationLevel > 1)); 1896 Opts.BinutilsVersion = 1897 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1898 1899 Opts.DebugTemplateAlias = Args.hasArg(OPT_gtemplate_alias); 1900 1901 Opts.DebugNameTable = static_cast<unsigned>( 1902 Args.hasArg(OPT_ggnu_pubnames) 1903 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1904 : Args.hasArg(OPT_gpubnames) 1905 ? llvm::DICompileUnit::DebugNameTableKind::Default 1906 : llvm::DICompileUnit::DebugNameTableKind::None); 1907 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1908 StringRef Value = A->getValue(); 1909 if (Value != "simple" && Value != "mangled") 1910 Diags.Report(diag::err_drv_unsupported_option_argument) 1911 << A->getSpelling() << A->getValue(); 1912 Opts.setDebugSimpleTemplateNames( 1913 StringRef(A->getValue()) == "simple" 1914 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple 1915 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled); 1916 } 1917 1918 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1919 Opts.TimePasses = true; 1920 1921 // -ftime-report= is only for new pass manager. 1922 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1923 StringRef Val = A->getValue(); 1924 if (Val == "per-pass") 1925 Opts.TimePassesPerRun = false; 1926 else if (Val == "per-pass-run") 1927 Opts.TimePassesPerRun = true; 1928 else 1929 Diags.Report(diag::err_drv_invalid_value) 1930 << A->getAsString(Args) << A->getValue(); 1931 } 1932 } 1933 1934 Opts.PrepareForLTO = false; 1935 Opts.PrepareForThinLTO = false; 1936 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1937 Opts.PrepareForLTO = true; 1938 StringRef S = A->getValue(); 1939 if (S == "thin") 1940 Opts.PrepareForThinLTO = true; 1941 else if (S != "full") 1942 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1943 if (Args.hasArg(OPT_funified_lto)) 1944 Opts.PrepareForThinLTO = true; 1945 } 1946 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1947 if (IK.getLanguage() != Language::LLVM_IR) 1948 Diags.Report(diag::err_drv_argument_only_allowed_with) 1949 << A->getAsString(Args) << "-x ir"; 1950 Opts.ThinLTOIndexFile = 1951 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1952 } 1953 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1954 Opts.SaveTempsFilePrefix = 1955 llvm::StringSwitch<std::string>(A->getValue()) 1956 .Case("obj", OutputFile) 1957 .Default(llvm::sys::path::filename(OutputFile).str()); 1958 1959 // The memory profile runtime appends the pid to make this name more unique. 1960 const char *MemProfileBasename = "memprof.profraw"; 1961 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1962 SmallString<128> Path( 1963 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1964 llvm::sys::path::append(Path, MemProfileBasename); 1965 Opts.MemoryProfileOutput = std::string(Path); 1966 } else if (Args.hasArg(OPT_fmemory_profile)) 1967 Opts.MemoryProfileOutput = MemProfileBasename; 1968 1969 memcpy(Opts.CoverageVersion, "408*", 4); 1970 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) { 1971 if (Args.hasArg(OPT_coverage_version_EQ)) { 1972 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1973 if (CoverageVersion.size() != 4) { 1974 Diags.Report(diag::err_drv_invalid_value) 1975 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1976 << CoverageVersion; 1977 } else { 1978 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1979 } 1980 } 1981 } 1982 // FIXME: For backend options that are not yet recorded as function 1983 // attributes in the IR, keep track of them so we can embed them in a 1984 // separate data section and use them when building the bitcode. 1985 for (const auto &A : Args) { 1986 // Do not encode output and input. 1987 if (A->getOption().getID() == options::OPT_o || 1988 A->getOption().getID() == options::OPT_INPUT || 1989 A->getOption().getID() == options::OPT_x || 1990 A->getOption().getID() == options::OPT_fembed_bitcode || 1991 A->getOption().matches(options::OPT_W_Group)) 1992 continue; 1993 ArgStringList ASL; 1994 A->render(Args, ASL); 1995 for (const auto &arg : ASL) { 1996 StringRef ArgStr(arg); 1997 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1998 // using \00 to separate each commandline options. 1999 Opts.CmdArgs.push_back('\0'); 2000 } 2001 } 2002 2003 auto XRayInstrBundles = 2004 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 2005 if (XRayInstrBundles.empty()) 2006 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 2007 else 2008 for (const auto &A : XRayInstrBundles) 2009 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 2010 Diags, Opts.XRayInstrumentationBundle); 2011 2012 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2013 StringRef Name = A->getValue(); 2014 if (Name == "full") { 2015 Opts.CFProtectionReturn = 1; 2016 Opts.CFProtectionBranch = 1; 2017 } else if (Name == "return") 2018 Opts.CFProtectionReturn = 1; 2019 else if (Name == "branch") 2020 Opts.CFProtectionBranch = 1; 2021 else if (Name != "none") 2022 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2023 } 2024 2025 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 2026 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 2027 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 2028 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 2029 .Default(llvm::FunctionReturnThunksKind::Invalid); 2030 // SystemZ might want to add support for "expolines." 2031 if (!T.isX86()) 2032 Diags.Report(diag::err_drv_argument_not_allowed_with) 2033 << A->getSpelling() << T.getTriple(); 2034 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 2035 Diags.Report(diag::err_drv_invalid_value) 2036 << A->getAsString(Args) << A->getValue(); 2037 else if (Val == llvm::FunctionReturnThunksKind::Extern && 2038 Args.getLastArgValue(OPT_mcmodel_EQ) == "large") 2039 Diags.Report(diag::err_drv_argument_not_allowed_with) 2040 << A->getAsString(Args) 2041 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 2042 else 2043 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 2044 } 2045 2046 for (auto *A : 2047 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 2048 CodeGenOptions::BitcodeFileToLink F; 2049 F.Filename = A->getValue(); 2050 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 2051 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 2052 // When linking CUDA bitcode, propagate function attributes so that 2053 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 2054 F.PropagateAttrs = true; 2055 F.Internalize = true; 2056 } 2057 Opts.LinkBitcodeFiles.push_back(F); 2058 } 2059 2060 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 2061 StringRef Val = A->getValue(); 2062 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 2063 Opts.FP32DenormalMode = Opts.FPDenormalMode; 2064 if (!Opts.FPDenormalMode.isValid()) 2065 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2066 } 2067 2068 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 2069 StringRef Val = A->getValue(); 2070 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 2071 if (!Opts.FP32DenormalMode.isValid()) 2072 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2073 } 2074 2075 // X86_32 has -fppc-struct-return and -freg-struct-return. 2076 // PPC32 has -maix-struct-return and -msvr4-struct-return. 2077 if (Arg *A = 2078 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 2079 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 2080 // TODO: We might want to consider enabling these options on AIX in the 2081 // future. 2082 if (T.isOSAIX()) 2083 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2084 << A->getSpelling() << T.str(); 2085 2086 const Option &O = A->getOption(); 2087 if (O.matches(OPT_fpcc_struct_return) || 2088 O.matches(OPT_maix_struct_return)) { 2089 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 2090 } else { 2091 assert(O.matches(OPT_freg_struct_return) || 2092 O.matches(OPT_msvr4_struct_return)); 2093 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 2094 } 2095 } 2096 2097 if (Arg *A = Args.getLastArg(OPT_mxcoff_roptr)) { 2098 if (!T.isOSAIX()) 2099 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2100 << A->getSpelling() << T.str(); 2101 2102 // Since the storage mapping class is specified per csect, 2103 // without using data sections, it is less effective to use read-only 2104 // pointers. Using read-only pointers may cause other RO variables in the 2105 // same csect to become RW when the linker acts upon `-bforceimprw`; 2106 // therefore, we require that separate data sections 2107 // are used when `-mxcoff-roptr` is in effect. We respect the setting of 2108 // data-sections since we have not found reasons to do otherwise that 2109 // overcome the user surprise of not respecting the setting. 2110 if (!Args.hasFlag(OPT_fdata_sections, OPT_fno_data_sections, false)) 2111 Diags.Report(diag::err_roptr_requires_data_sections); 2112 2113 Opts.XCOFFReadOnlyPointers = true; 2114 } 2115 2116 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 2117 if (!T.isOSAIX() || T.isPPC32()) 2118 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2119 << A->getSpelling() << T.str(); 2120 } 2121 2122 bool NeedLocTracking = false; 2123 2124 if (!Opts.OptRecordFile.empty()) 2125 NeedLocTracking = true; 2126 2127 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 2128 Opts.OptRecordPasses = A->getValue(); 2129 NeedLocTracking = true; 2130 } 2131 2132 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 2133 Opts.OptRecordFormat = A->getValue(); 2134 NeedLocTracking = true; 2135 } 2136 2137 Opts.OptimizationRemark = 2138 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 2139 2140 Opts.OptimizationRemarkMissed = 2141 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 2142 2143 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 2144 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 2145 2146 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 2147 Opts.OptimizationRemarkMissed.hasValidPattern() || 2148 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 2149 2150 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 2151 bool UsingProfile = 2152 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 2153 2154 if (Opts.DiagnosticsWithHotness && !UsingProfile && 2155 // An IR file will contain PGO as metadata 2156 IK.getLanguage() != Language::LLVM_IR) 2157 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2158 << "-fdiagnostics-show-hotness"; 2159 2160 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 2161 if (auto *arg = 2162 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 2163 auto ResultOrErr = 2164 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 2165 2166 if (!ResultOrErr) { 2167 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 2168 << "-fdiagnostics-hotness-threshold="; 2169 } else { 2170 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 2171 if ((!Opts.DiagnosticsHotnessThreshold || 2172 *Opts.DiagnosticsHotnessThreshold > 0) && 2173 !UsingProfile) 2174 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2175 << "-fdiagnostics-hotness-threshold="; 2176 } 2177 } 2178 2179 if (auto *arg = 2180 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2181 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2182 2183 if (!ResultOrErr) { 2184 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2185 << "-fdiagnostics-misexpect-tolerance="; 2186 } else { 2187 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2188 if ((!Opts.DiagnosticsMisExpectTolerance || 2189 *Opts.DiagnosticsMisExpectTolerance > 0) && 2190 !UsingProfile) 2191 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2192 << "-fdiagnostics-misexpect-tolerance="; 2193 } 2194 } 2195 2196 // If the user requested to use a sample profile for PGO, then the 2197 // backend will need to track source location information so the profile 2198 // can be incorporated into the IR. 2199 if (UsingSampleProfile) 2200 NeedLocTracking = true; 2201 2202 if (!Opts.StackUsageOutput.empty()) 2203 NeedLocTracking = true; 2204 2205 // If the user requested a flag that requires source locations available in 2206 // the backend, make sure that the backend tracks source location information. 2207 if (NeedLocTracking && 2208 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo) 2209 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly); 2210 2211 // Parse -fsanitize-recover= arguments. 2212 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2213 parseSanitizerKinds("-fsanitize-recover=", 2214 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2215 Opts.SanitizeRecover); 2216 parseSanitizerKinds("-fsanitize-trap=", 2217 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2218 Opts.SanitizeTrap); 2219 2220 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2221 2222 if (!LangOpts->CUDAIsDevice) 2223 parsePointerAuthOptions(Opts.PointerAuth, *LangOpts, T, Diags); 2224 2225 if (Args.hasArg(options::OPT_ffinite_loops)) 2226 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2227 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2228 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2229 2230 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2231 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2232 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2233 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2234 2235 return Diags.getNumErrors() == NumErrorsBefore; 2236 } 2237 2238 static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2239 ArgumentConsumer Consumer) { 2240 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2241 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2242 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2243 #include "clang/Driver/Options.inc" 2244 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2245 2246 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2247 GenerateArg(Consumer, OPT_show_includes); 2248 2249 for (const auto &Dep : Opts.ExtraDeps) { 2250 switch (Dep.second) { 2251 case EDK_SanitizeIgnorelist: 2252 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2253 continue; 2254 case EDK_ModuleFile: 2255 // Module file arguments are generated from FrontendOptions and 2256 // HeaderSearchOptions. 2257 continue; 2258 case EDK_ProfileList: 2259 // Profile list arguments are generated from LanguageOptions via the 2260 // marshalling infrastructure. 2261 continue; 2262 case EDK_DepFileEntry: 2263 GenerateArg(Consumer, OPT_fdepfile_entry, Dep.first); 2264 break; 2265 } 2266 } 2267 } 2268 2269 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2270 ArgList &Args, DiagnosticsEngine &Diags, 2271 frontend::ActionKind Action, 2272 bool ShowLineMarkers) { 2273 unsigned NumErrorsBefore = Diags.getNumErrors(); 2274 2275 DependencyOutputOptions &DependencyOutputOpts = Opts; 2276 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2277 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2278 #include "clang/Driver/Options.inc" 2279 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2280 2281 if (Args.hasArg(OPT_show_includes)) { 2282 // Writing both /showIncludes and preprocessor output to stdout 2283 // would produce interleaved output, so use stderr for /showIncludes. 2284 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2285 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2286 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2287 else 2288 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2289 } else { 2290 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2291 } 2292 2293 // Add sanitizer ignorelists as extra dependencies. 2294 // They won't be discovered by the regular preprocessor, so 2295 // we let make / ninja to know about this implicit dependency. 2296 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2297 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2298 StringRef Val = A->getValue(); 2299 if (!Val.contains('=')) 2300 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2301 } 2302 if (Opts.IncludeSystemHeaders) { 2303 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2304 StringRef Val = A->getValue(); 2305 if (!Val.contains('=')) 2306 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2307 } 2308 } 2309 } 2310 2311 // -fprofile-list= dependencies. 2312 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2313 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2314 2315 // Propagate the extra dependencies. 2316 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2317 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2318 2319 // Only the -fmodule-file=<file> form. 2320 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2321 StringRef Val = A->getValue(); 2322 if (!Val.contains('=')) 2323 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2324 } 2325 2326 // Check for invalid combinations of header-include-format 2327 // and header-include-filtering. 2328 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2329 Opts.HeaderIncludeFiltering != HIFIL_None) || 2330 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2331 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2332 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2333 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2334 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2335 2336 return Diags.getNumErrors() == NumErrorsBefore; 2337 } 2338 2339 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2340 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2341 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2342 // Support both clang's -f[no-]color-diagnostics and gcc's 2343 // -f[no-]diagnostics-colors[=never|always|auto]. 2344 enum { 2345 Colors_On, 2346 Colors_Off, 2347 Colors_Auto 2348 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2349 for (auto *A : Args) { 2350 const Option &O = A->getOption(); 2351 if (O.matches(options::OPT_fcolor_diagnostics)) { 2352 ShowColors = Colors_On; 2353 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2354 ShowColors = Colors_Off; 2355 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2356 StringRef Value(A->getValue()); 2357 if (Value == "always") 2358 ShowColors = Colors_On; 2359 else if (Value == "never") 2360 ShowColors = Colors_Off; 2361 else if (Value == "auto") 2362 ShowColors = Colors_Auto; 2363 } 2364 } 2365 return ShowColors == Colors_On || 2366 (ShowColors == Colors_Auto && 2367 llvm::sys::Process::StandardErrHasColors()); 2368 } 2369 2370 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2371 DiagnosticsEngine &Diags) { 2372 bool Success = true; 2373 for (const auto &Prefix : VerifyPrefixes) { 2374 // Every prefix must start with a letter and contain only alphanumeric 2375 // characters, hyphens, and underscores. 2376 auto BadChar = llvm::find_if(Prefix, [](char C) { 2377 return !isAlphanumeric(C) && C != '-' && C != '_'; 2378 }); 2379 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2380 Success = false; 2381 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2382 Diags.Report(diag::note_drv_verify_prefix_spelling); 2383 } 2384 } 2385 return Success; 2386 } 2387 2388 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2389 ArgumentConsumer Consumer) { 2390 const FileSystemOptions &FileSystemOpts = Opts; 2391 2392 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2393 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2394 #include "clang/Driver/Options.inc" 2395 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2396 } 2397 2398 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2399 DiagnosticsEngine &Diags) { 2400 unsigned NumErrorsBefore = Diags.getNumErrors(); 2401 2402 FileSystemOptions &FileSystemOpts = Opts; 2403 2404 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2405 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2406 #include "clang/Driver/Options.inc" 2407 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2408 2409 return Diags.getNumErrors() == NumErrorsBefore; 2410 } 2411 2412 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2413 ArgumentConsumer Consumer) { 2414 const MigratorOptions &MigratorOpts = Opts; 2415 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2416 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2417 #include "clang/Driver/Options.inc" 2418 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2419 } 2420 2421 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2422 DiagnosticsEngine &Diags) { 2423 unsigned NumErrorsBefore = Diags.getNumErrors(); 2424 2425 MigratorOptions &MigratorOpts = Opts; 2426 2427 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2428 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2429 #include "clang/Driver/Options.inc" 2430 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2431 2432 return Diags.getNumErrors() == NumErrorsBefore; 2433 } 2434 2435 void CompilerInvocationBase::GenerateDiagnosticArgs( 2436 const DiagnosticOptions &Opts, ArgumentConsumer Consumer, 2437 bool DefaultDiagColor) { 2438 const DiagnosticOptions *DiagnosticOpts = &Opts; 2439 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2440 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2441 #include "clang/Driver/Options.inc" 2442 #undef DIAG_OPTION_WITH_MARSHALLING 2443 2444 if (!Opts.DiagnosticSerializationFile.empty()) 2445 GenerateArg(Consumer, OPT_diagnostic_serialized_file, 2446 Opts.DiagnosticSerializationFile); 2447 2448 if (Opts.ShowColors) 2449 GenerateArg(Consumer, OPT_fcolor_diagnostics); 2450 2451 if (Opts.VerifyDiagnostics && 2452 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2453 GenerateArg(Consumer, OPT_verify); 2454 2455 for (const auto &Prefix : Opts.VerifyPrefixes) 2456 if (Prefix != "expected") 2457 GenerateArg(Consumer, OPT_verify_EQ, Prefix); 2458 2459 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2460 if (VIU == DiagnosticLevelMask::None) { 2461 // This is the default, don't generate anything. 2462 } else if (VIU == DiagnosticLevelMask::All) { 2463 GenerateArg(Consumer, OPT_verify_ignore_unexpected); 2464 } else { 2465 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2466 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "note"); 2467 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2468 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "remark"); 2469 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2470 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "warning"); 2471 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2472 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "error"); 2473 } 2474 2475 for (const auto &Warning : Opts.Warnings) { 2476 // This option is automatically generated from UndefPrefixes. 2477 if (Warning == "undef-prefix") 2478 continue; 2479 // This option is automatically generated from CheckConstexprFunctionBodies. 2480 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr") 2481 continue; 2482 Consumer(StringRef("-W") + Warning); 2483 } 2484 2485 for (const auto &Remark : Opts.Remarks) { 2486 // These arguments are generated from OptimizationRemark fields of 2487 // CodeGenOptions. 2488 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2489 "pass-analysis", "no-pass-analysis", 2490 "pass-missed", "no-pass-missed"}; 2491 if (llvm::is_contained(IgnoredRemarks, Remark)) 2492 continue; 2493 2494 Consumer(StringRef("-R") + Remark); 2495 } 2496 } 2497 2498 std::unique_ptr<DiagnosticOptions> 2499 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2500 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2501 unsigned MissingArgIndex, MissingArgCount; 2502 InputArgList Args = getDriverOptTable().ParseArgs( 2503 Argv.slice(1), MissingArgIndex, MissingArgCount); 2504 2505 bool ShowColors = true; 2506 if (std::optional<std::string> NoColor = 2507 llvm::sys::Process::GetEnv("NO_COLOR"); 2508 NoColor && !NoColor->empty()) { 2509 // If the user set the NO_COLOR environment variable, we'll honor that 2510 // unless the command line overrides it. 2511 ShowColors = false; 2512 } 2513 2514 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2515 // Any errors that would be diagnosed here will also be diagnosed later, 2516 // when the DiagnosticsEngine actually exists. 2517 (void)ParseDiagnosticArgs(*DiagOpts, Args, /*Diags=*/nullptr, ShowColors); 2518 return DiagOpts; 2519 } 2520 2521 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2522 DiagnosticsEngine *Diags, 2523 bool DefaultDiagColor) { 2524 std::optional<DiagnosticsEngine> IgnoringDiags; 2525 if (!Diags) { 2526 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2527 new IgnoringDiagConsumer()); 2528 Diags = &*IgnoringDiags; 2529 } 2530 2531 unsigned NumErrorsBefore = Diags->getNumErrors(); 2532 2533 // The key paths of diagnostic options defined in Options.td start with 2534 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2535 DiagnosticOptions *DiagnosticOpts = &Opts; 2536 2537 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2538 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__) 2539 #include "clang/Driver/Options.inc" 2540 #undef DIAG_OPTION_WITH_MARSHALLING 2541 2542 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2543 2544 if (Arg *A = 2545 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2546 Opts.DiagnosticSerializationFile = A->getValue(); 2547 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2548 2549 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2550 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2551 if (Args.hasArg(OPT_verify)) 2552 Opts.VerifyPrefixes.push_back("expected"); 2553 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2554 // then sort it to prepare for fast lookup using std::binary_search. 2555 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2556 Opts.VerifyDiagnostics = false; 2557 else 2558 llvm::sort(Opts.VerifyPrefixes); 2559 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2560 parseDiagnosticLevelMask( 2561 "-verify-ignore-unexpected=", 2562 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2563 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2564 DiagMask = DiagnosticLevelMask::All; 2565 Opts.setVerifyIgnoreUnexpected(DiagMask); 2566 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2567 Diags->Report(diag::warn_ignoring_ftabstop_value) 2568 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2569 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2570 } 2571 2572 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2573 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2574 2575 return Diags->getNumErrors() == NumErrorsBefore; 2576 } 2577 2578 /// Parse the argument to the -ftest-module-file-extension 2579 /// command-line argument. 2580 /// 2581 /// \returns true on error, false on success. 2582 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2583 std::string &BlockName, 2584 unsigned &MajorVersion, 2585 unsigned &MinorVersion, 2586 bool &Hashed, 2587 std::string &UserInfo) { 2588 SmallVector<StringRef, 5> Args; 2589 Arg.split(Args, ':', 5); 2590 if (Args.size() < 5) 2591 return true; 2592 2593 BlockName = std::string(Args[0]); 2594 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2595 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2596 if (Args[3].getAsInteger(2, Hashed)) return true; 2597 if (Args.size() > 4) 2598 UserInfo = std::string(Args[4]); 2599 return false; 2600 } 2601 2602 /// Return a table that associates command line option specifiers with the 2603 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2604 /// intentionally missing, as this case is handled separately from other 2605 /// frontend options. 2606 static const auto &getFrontendActionTable() { 2607 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2608 {frontend::ASTDeclList, OPT_ast_list}, 2609 2610 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2611 {frontend::ASTDump, OPT_ast_dump_all}, 2612 {frontend::ASTDump, OPT_ast_dump_EQ}, 2613 {frontend::ASTDump, OPT_ast_dump}, 2614 {frontend::ASTDump, OPT_ast_dump_lookups}, 2615 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2616 2617 {frontend::ASTPrint, OPT_ast_print}, 2618 {frontend::ASTView, OPT_ast_view}, 2619 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2620 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2621 {frontend::DumpTokens, OPT_dump_tokens}, 2622 {frontend::EmitAssembly, OPT_S}, 2623 {frontend::EmitBC, OPT_emit_llvm_bc}, 2624 {frontend::EmitCIR, OPT_emit_cir}, 2625 {frontend::EmitHTML, OPT_emit_html}, 2626 {frontend::EmitLLVM, OPT_emit_llvm}, 2627 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2628 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2629 {frontend::EmitObj, OPT_emit_obj}, 2630 {frontend::ExtractAPI, OPT_extract_api}, 2631 2632 {frontend::FixIt, OPT_fixit_EQ}, 2633 {frontend::FixIt, OPT_fixit}, 2634 2635 {frontend::GenerateModule, OPT_emit_module}, 2636 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2637 {frontend::GenerateReducedModuleInterface, 2638 OPT_emit_reduced_module_interface}, 2639 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2640 {frontend::GeneratePCH, OPT_emit_pch}, 2641 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2642 {frontend::InitOnly, OPT_init_only}, 2643 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2644 {frontend::ModuleFileInfo, OPT_module_file_info}, 2645 {frontend::VerifyPCH, OPT_verify_pch}, 2646 {frontend::PrintPreamble, OPT_print_preamble}, 2647 {frontend::PrintPreprocessedInput, OPT_E}, 2648 {frontend::TemplightDump, OPT_templight_dump}, 2649 {frontend::RewriteMacros, OPT_rewrite_macros}, 2650 {frontend::RewriteObjC, OPT_rewrite_objc}, 2651 {frontend::RewriteTest, OPT_rewrite_test}, 2652 {frontend::RunAnalysis, OPT_analyze}, 2653 {frontend::MigrateSource, OPT_migrate}, 2654 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2655 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2656 OPT_print_dependency_directives_minimized_source}, 2657 }; 2658 2659 return Table; 2660 } 2661 2662 /// Maps command line option to frontend action. 2663 static std::optional<frontend::ActionKind> 2664 getFrontendAction(OptSpecifier &Opt) { 2665 for (const auto &ActionOpt : getFrontendActionTable()) 2666 if (ActionOpt.second == Opt.getID()) 2667 return ActionOpt.first; 2668 2669 return std::nullopt; 2670 } 2671 2672 /// Maps frontend action to command line option. 2673 static std::optional<OptSpecifier> 2674 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2675 for (const auto &ActionOpt : getFrontendActionTable()) 2676 if (ActionOpt.first == ProgramAction) 2677 return OptSpecifier(ActionOpt.second); 2678 2679 return std::nullopt; 2680 } 2681 2682 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2683 ArgumentConsumer Consumer, bool IsHeader) { 2684 const FrontendOptions &FrontendOpts = Opts; 2685 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2686 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2687 #include "clang/Driver/Options.inc" 2688 #undef FRONTEND_OPTION_WITH_MARSHALLING 2689 2690 std::optional<OptSpecifier> ProgramActionOpt = 2691 getProgramActionOpt(Opts.ProgramAction); 2692 2693 // Generating a simple flag covers most frontend actions. 2694 std::function<void()> GenerateProgramAction = [&]() { 2695 GenerateArg(Consumer, *ProgramActionOpt); 2696 }; 2697 2698 if (!ProgramActionOpt) { 2699 // PluginAction is the only program action handled separately. 2700 assert(Opts.ProgramAction == frontend::PluginAction && 2701 "Frontend action without option."); 2702 GenerateProgramAction = [&]() { 2703 GenerateArg(Consumer, OPT_plugin, Opts.ActionName); 2704 }; 2705 } 2706 2707 // FIXME: Simplify the complex 'AST dump' command line. 2708 if (Opts.ProgramAction == frontend::ASTDump) { 2709 GenerateProgramAction = [&]() { 2710 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2711 // marshalling infrastructure. 2712 2713 if (Opts.ASTDumpFormat != ADOF_Default) { 2714 StringRef Format; 2715 switch (Opts.ASTDumpFormat) { 2716 case ADOF_Default: 2717 llvm_unreachable("Default AST dump format."); 2718 case ADOF_JSON: 2719 Format = "json"; 2720 break; 2721 } 2722 2723 if (Opts.ASTDumpAll) 2724 GenerateArg(Consumer, OPT_ast_dump_all_EQ, Format); 2725 if (Opts.ASTDumpDecls) 2726 GenerateArg(Consumer, OPT_ast_dump_EQ, Format); 2727 } else { 2728 if (Opts.ASTDumpAll) 2729 GenerateArg(Consumer, OPT_ast_dump_all); 2730 if (Opts.ASTDumpDecls) 2731 GenerateArg(Consumer, OPT_ast_dump); 2732 } 2733 }; 2734 } 2735 2736 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2737 GenerateProgramAction = [&]() { 2738 GenerateArg(Consumer, OPT_fixit_EQ, Opts.FixItSuffix); 2739 }; 2740 } 2741 2742 GenerateProgramAction(); 2743 2744 for (const auto &PluginArgs : Opts.PluginArgs) { 2745 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2746 for (const auto &PluginArg : PluginArgs.second) 2747 denormalizeString(Consumer, 2748 Opt.getPrefix() + Opt.getName() + PluginArgs.first, 2749 Opt.getKind(), 0, PluginArg); 2750 } 2751 2752 for (const auto &Ext : Opts.ModuleFileExtensions) 2753 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2754 GenerateArg(Consumer, OPT_ftest_module_file_extension_EQ, TestExt->str()); 2755 2756 if (!Opts.CodeCompletionAt.FileName.empty()) 2757 GenerateArg(Consumer, OPT_code_completion_at, 2758 Opts.CodeCompletionAt.ToString()); 2759 2760 for (const auto &Plugin : Opts.Plugins) 2761 GenerateArg(Consumer, OPT_load, Plugin); 2762 2763 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2764 2765 for (const auto &ModuleFile : Opts.ModuleFiles) 2766 GenerateArg(Consumer, OPT_fmodule_file, ModuleFile); 2767 2768 if (Opts.AuxTargetCPU) 2769 GenerateArg(Consumer, OPT_aux_target_cpu, *Opts.AuxTargetCPU); 2770 2771 if (Opts.AuxTargetFeatures) 2772 for (const auto &Feature : *Opts.AuxTargetFeatures) 2773 GenerateArg(Consumer, OPT_aux_target_feature, Feature); 2774 2775 { 2776 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2777 StringRef ModuleMap = 2778 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2779 StringRef HeaderUnit = ""; 2780 switch (Opts.DashX.getHeaderUnitKind()) { 2781 case InputKind::HeaderUnit_None: 2782 break; 2783 case InputKind::HeaderUnit_User: 2784 HeaderUnit = "-user"; 2785 break; 2786 case InputKind::HeaderUnit_System: 2787 HeaderUnit = "-system"; 2788 break; 2789 case InputKind::HeaderUnit_Abs: 2790 HeaderUnit = "-header-unit"; 2791 break; 2792 } 2793 StringRef Header = IsHeader ? "-header" : ""; 2794 2795 StringRef Lang; 2796 switch (Opts.DashX.getLanguage()) { 2797 case Language::C: 2798 Lang = "c"; 2799 break; 2800 case Language::OpenCL: 2801 Lang = "cl"; 2802 break; 2803 case Language::OpenCLCXX: 2804 Lang = "clcpp"; 2805 break; 2806 case Language::CUDA: 2807 Lang = "cuda"; 2808 break; 2809 case Language::HIP: 2810 Lang = "hip"; 2811 break; 2812 case Language::CXX: 2813 Lang = "c++"; 2814 break; 2815 case Language::ObjC: 2816 Lang = "objective-c"; 2817 break; 2818 case Language::ObjCXX: 2819 Lang = "objective-c++"; 2820 break; 2821 case Language::RenderScript: 2822 Lang = "renderscript"; 2823 break; 2824 case Language::Asm: 2825 Lang = "assembler-with-cpp"; 2826 break; 2827 case Language::Unknown: 2828 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2829 "Generating -x argument for unknown language (not precompiled)."); 2830 Lang = "ast"; 2831 break; 2832 case Language::LLVM_IR: 2833 Lang = "ir"; 2834 break; 2835 case Language::HLSL: 2836 Lang = "hlsl"; 2837 break; 2838 case Language::CIR: 2839 Lang = "cir"; 2840 break; 2841 } 2842 2843 GenerateArg(Consumer, OPT_x, 2844 Lang + HeaderUnit + Header + ModuleMap + Preprocessed); 2845 } 2846 2847 // OPT_INPUT has a unique class, generate it directly. 2848 for (const auto &Input : Opts.Inputs) 2849 Consumer(Input.getFile()); 2850 } 2851 2852 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2853 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2854 unsigned NumErrorsBefore = Diags.getNumErrors(); 2855 2856 FrontendOptions &FrontendOpts = Opts; 2857 2858 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2859 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2860 #include "clang/Driver/Options.inc" 2861 #undef FRONTEND_OPTION_WITH_MARSHALLING 2862 2863 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2864 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2865 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2866 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2867 assert(ProgramAction && "Option specifier not in Action_Group."); 2868 2869 if (ProgramAction == frontend::ASTDump && 2870 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2871 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2872 .CaseLower("default", ADOF_Default) 2873 .CaseLower("json", ADOF_JSON) 2874 .Default(std::numeric_limits<unsigned>::max()); 2875 2876 if (Val != std::numeric_limits<unsigned>::max()) 2877 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2878 else { 2879 Diags.Report(diag::err_drv_invalid_value) 2880 << A->getAsString(Args) << A->getValue(); 2881 Opts.ASTDumpFormat = ADOF_Default; 2882 } 2883 } 2884 2885 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2886 Opts.FixItSuffix = A->getValue(); 2887 2888 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2889 StringRef ArgStr = 2890 Args.hasArg(OPT_interface_stub_version_EQ) 2891 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2892 : "ifs-v1"; 2893 if (ArgStr == "experimental-yaml-elf-v1" || 2894 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2895 ArgStr == "experimental-tapi-elf-v1") { 2896 std::string ErrorMessage = 2897 "Invalid interface stub format: " + ArgStr.str() + 2898 " is deprecated."; 2899 Diags.Report(diag::err_drv_invalid_value) 2900 << "Must specify a valid interface stub format type, ie: " 2901 "-interface-stub-version=ifs-v1" 2902 << ErrorMessage; 2903 ProgramAction = frontend::ParseSyntaxOnly; 2904 } else if (!ArgStr.starts_with("ifs-")) { 2905 std::string ErrorMessage = 2906 "Invalid interface stub format: " + ArgStr.str() + "."; 2907 Diags.Report(diag::err_drv_invalid_value) 2908 << "Must specify a valid interface stub format type, ie: " 2909 "-interface-stub-version=ifs-v1" 2910 << ErrorMessage; 2911 ProgramAction = frontend::ParseSyntaxOnly; 2912 } 2913 } 2914 2915 Opts.ProgramAction = *ProgramAction; 2916 2917 // Catch common mistakes when multiple actions are specified for cc1 (e.g. 2918 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to 2919 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name 2920 // X ACTION), we suppress the error when the two actions are separated by 2921 // -main-file-name. 2922 // 2923 // As an exception, accept composable -ast-dump*. 2924 if (!A->getSpelling().starts_with("-ast-dump")) { 2925 const Arg *SavedAction = nullptr; 2926 for (const Arg *AA : 2927 Args.filtered(OPT_Action_Group, OPT_main_file_name)) { 2928 if (AA->getOption().matches(OPT_main_file_name)) { 2929 SavedAction = nullptr; 2930 } else if (!SavedAction) { 2931 SavedAction = AA; 2932 } else { 2933 if (!A->getOption().matches(OPT_ast_dump_EQ)) 2934 Diags.Report(diag::err_fe_invalid_multiple_actions) 2935 << SavedAction->getSpelling() << A->getSpelling(); 2936 break; 2937 } 2938 } 2939 } 2940 } 2941 2942 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2943 Opts.Plugins.emplace_back(A->getValue(0)); 2944 Opts.ProgramAction = frontend::PluginAction; 2945 Opts.ActionName = A->getValue(); 2946 } 2947 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2948 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2949 2950 for (const std::string &Arg : 2951 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2952 std::string BlockName; 2953 unsigned MajorVersion; 2954 unsigned MinorVersion; 2955 bool Hashed; 2956 std::string UserInfo; 2957 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2958 MinorVersion, Hashed, UserInfo)) { 2959 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2960 2961 continue; 2962 } 2963 2964 // Add the testing module file extension. 2965 Opts.ModuleFileExtensions.push_back( 2966 std::make_shared<TestModuleFileExtension>( 2967 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2968 } 2969 2970 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2971 Opts.CodeCompletionAt = 2972 ParsedSourceLocation::FromString(A->getValue()); 2973 if (Opts.CodeCompletionAt.FileName.empty()) 2974 Diags.Report(diag::err_drv_invalid_value) 2975 << A->getAsString(Args) << A->getValue(); 2976 } 2977 2978 Opts.Plugins = Args.getAllArgValues(OPT_load); 2979 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2980 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2981 // Only the -fmodule-file=<file> form. 2982 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2983 StringRef Val = A->getValue(); 2984 if (!Val.contains('=')) 2985 Opts.ModuleFiles.push_back(std::string(Val)); 2986 } 2987 2988 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2989 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2990 << "-emit-module"; 2991 if (Args.hasArg(OPT_fclangir) || Args.hasArg(OPT_emit_cir)) 2992 Opts.UseClangIRPipeline = true; 2993 2994 if (Args.hasArg(OPT_aux_target_cpu)) 2995 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2996 if (Args.hasArg(OPT_aux_target_feature)) 2997 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2998 2999 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 3000 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 3001 Diags.Report(diag::err_drv_argument_not_allowed_with) 3002 << "ARC migration" << "ObjC migration"; 3003 } 3004 3005 InputKind DashX(Language::Unknown); 3006 if (const Arg *A = Args.getLastArg(OPT_x)) { 3007 StringRef XValue = A->getValue(); 3008 3009 // Parse suffixes: 3010 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 3011 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 3012 bool Preprocessed = XValue.consume_back("-cpp-output"); 3013 bool ModuleMap = XValue.consume_back("-module-map"); 3014 // Detect and consume the header indicator. 3015 bool IsHeader = 3016 XValue != "precompiled-header" && XValue.consume_back("-header"); 3017 3018 // If we have c++-{user,system}-header, that indicates a header unit input 3019 // likewise, if the user put -fmodule-header together with a header with an 3020 // absolute path (header-unit-header). 3021 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 3022 if (IsHeader || Preprocessed) { 3023 if (XValue.consume_back("-header-unit")) 3024 HUK = InputKind::HeaderUnit_Abs; 3025 else if (XValue.consume_back("-system")) 3026 HUK = InputKind::HeaderUnit_System; 3027 else if (XValue.consume_back("-user")) 3028 HUK = InputKind::HeaderUnit_User; 3029 } 3030 3031 // The value set by this processing is an un-preprocessed source which is 3032 // not intended to be a module map or header unit. 3033 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 3034 HUK == InputKind::HeaderUnit_None; 3035 3036 // Principal languages. 3037 DashX = llvm::StringSwitch<InputKind>(XValue) 3038 .Case("c", Language::C) 3039 .Case("cl", Language::OpenCL) 3040 .Case("clcpp", Language::OpenCLCXX) 3041 .Case("cuda", Language::CUDA) 3042 .Case("hip", Language::HIP) 3043 .Case("c++", Language::CXX) 3044 .Case("objective-c", Language::ObjC) 3045 .Case("objective-c++", Language::ObjCXX) 3046 .Case("renderscript", Language::RenderScript) 3047 .Case("hlsl", Language::HLSL) 3048 .Default(Language::Unknown); 3049 3050 // "objc[++]-cpp-output" is an acceptable synonym for 3051 // "objective-c[++]-cpp-output". 3052 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 3053 HUK == InputKind::HeaderUnit_None) 3054 DashX = llvm::StringSwitch<InputKind>(XValue) 3055 .Case("objc", Language::ObjC) 3056 .Case("objc++", Language::ObjCXX) 3057 .Default(Language::Unknown); 3058 3059 // Some special cases cannot be combined with suffixes. 3060 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 3061 HUK == InputKind::HeaderUnit_None) 3062 DashX = llvm::StringSwitch<InputKind>(XValue) 3063 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 3064 .Case("assembler-with-cpp", Language::Asm) 3065 .Cases("ast", "pcm", "precompiled-header", 3066 InputKind(Language::Unknown, InputKind::Precompiled)) 3067 .Case("ir", Language::LLVM_IR) 3068 .Case("cir", Language::CIR) 3069 .Default(Language::Unknown); 3070 3071 if (DashX.isUnknown()) 3072 Diags.Report(diag::err_drv_invalid_value) 3073 << A->getAsString(Args) << A->getValue(); 3074 3075 if (Preprocessed) 3076 DashX = DashX.getPreprocessed(); 3077 // A regular header is considered mutually exclusive with a header unit. 3078 if (HUK != InputKind::HeaderUnit_None) { 3079 DashX = DashX.withHeaderUnit(HUK); 3080 IsHeaderFile = true; 3081 } else if (IsHeaderFile) 3082 DashX = DashX.getHeader(); 3083 if (ModuleMap) 3084 DashX = DashX.withFormat(InputKind::ModuleMap); 3085 } 3086 3087 // '-' is the default input if none is given. 3088 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 3089 Opts.Inputs.clear(); 3090 if (Inputs.empty()) 3091 Inputs.push_back("-"); 3092 3093 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 3094 Inputs.size() > 1) 3095 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 3096 3097 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 3098 InputKind IK = DashX; 3099 if (IK.isUnknown()) { 3100 IK = FrontendOptions::getInputKindForExtension( 3101 StringRef(Inputs[i]).rsplit('.').second); 3102 // FIXME: Warn on this? 3103 if (IK.isUnknown()) 3104 IK = Language::C; 3105 // FIXME: Remove this hack. 3106 if (i == 0) 3107 DashX = IK; 3108 } 3109 3110 bool IsSystem = false; 3111 3112 // The -emit-module action implicitly takes a module map. 3113 if (Opts.ProgramAction == frontend::GenerateModule && 3114 IK.getFormat() == InputKind::Source) { 3115 IK = IK.withFormat(InputKind::ModuleMap); 3116 IsSystem = Opts.IsSystemModule; 3117 } 3118 3119 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 3120 } 3121 3122 Opts.DashX = DashX; 3123 3124 return Diags.getNumErrors() == NumErrorsBefore; 3125 } 3126 3127 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 3128 void *MainAddr) { 3129 std::string ClangExecutable = 3130 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 3131 return Driver::GetResourcesPath(ClangExecutable); 3132 } 3133 3134 static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts, 3135 ArgumentConsumer Consumer) { 3136 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 3137 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3138 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3139 #include "clang/Driver/Options.inc" 3140 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3141 3142 if (Opts.UseLibcxx) 3143 GenerateArg(Consumer, OPT_stdlib_EQ, "libc++"); 3144 3145 if (!Opts.ModuleCachePath.empty()) 3146 GenerateArg(Consumer, OPT_fmodules_cache_path, Opts.ModuleCachePath); 3147 3148 for (const auto &File : Opts.PrebuiltModuleFiles) 3149 GenerateArg(Consumer, OPT_fmodule_file, File.first + "=" + File.second); 3150 3151 for (const auto &Path : Opts.PrebuiltModulePaths) 3152 GenerateArg(Consumer, OPT_fprebuilt_module_path, Path); 3153 3154 for (const auto &Macro : Opts.ModulesIgnoreMacros) 3155 GenerateArg(Consumer, OPT_fmodules_ignore_macro, Macro.val()); 3156 3157 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3158 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3159 std::optional<bool> IsFramework, 3160 std::optional<bool> IgnoreSysRoot) { 3161 return llvm::is_contained(Groups, Entry.Group) && 3162 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3163 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3164 }; 3165 3166 auto It = Opts.UserEntries.begin(); 3167 auto End = Opts.UserEntries.end(); 3168 3169 // Add -I..., -F..., and -index-header-map options in order. 3170 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3171 std::nullopt, true); 3172 ++It) { 3173 OptSpecifier Opt = [It, Matches]() { 3174 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3175 return OPT_F; 3176 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3177 return OPT_I; 3178 if (Matches(*It, frontend::Angled, true, true)) 3179 return OPT_F; 3180 if (Matches(*It, frontend::Angled, false, true)) 3181 return OPT_I; 3182 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3183 }(); 3184 3185 if (It->Group == frontend::IndexHeaderMap) 3186 GenerateArg(Consumer, OPT_index_header_map); 3187 GenerateArg(Consumer, Opt, It->Path); 3188 }; 3189 3190 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3191 // have already been generated as "-I[xx]yy". If that's the case, their 3192 // position on command line was such that this has no semantic impact on 3193 // include paths. 3194 for (; It < End && 3195 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3196 ++It) { 3197 OptSpecifier Opt = 3198 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3199 GenerateArg(Consumer, Opt, It->Path); 3200 } 3201 3202 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3203 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3204 // command line was such that this has no semantic impact on include paths. 3205 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3206 GenerateArg(Consumer, OPT_idirafter, It->Path); 3207 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3208 GenerateArg(Consumer, OPT_iquote, It->Path); 3209 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3210 ++It) 3211 GenerateArg(Consumer, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3212 It->Path); 3213 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3214 GenerateArg(Consumer, OPT_iframework, It->Path); 3215 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3216 GenerateArg(Consumer, OPT_iframeworkwithsysroot, It->Path); 3217 3218 // Add the paths for the various language specific isystem flags. 3219 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3220 GenerateArg(Consumer, OPT_c_isystem, It->Path); 3221 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3222 GenerateArg(Consumer, OPT_cxx_isystem, It->Path); 3223 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3224 GenerateArg(Consumer, OPT_objc_isystem, It->Path); 3225 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3226 GenerateArg(Consumer, OPT_objcxx_isystem, It->Path); 3227 3228 // Add the internal paths from a driver that detects standard include paths. 3229 // Note: Some paths that came from "-internal-isystem" arguments may have 3230 // already been generated as "-isystem". If that's the case, their position on 3231 // command line was such that this has no semantic impact on include paths. 3232 for (; It < End && 3233 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3234 ++It) { 3235 OptSpecifier Opt = It->Group == frontend::System 3236 ? OPT_internal_isystem 3237 : OPT_internal_externc_isystem; 3238 GenerateArg(Consumer, Opt, It->Path); 3239 } 3240 3241 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3242 3243 // Add the path prefixes which are implicitly treated as being system headers. 3244 for (const auto &P : Opts.SystemHeaderPrefixes) { 3245 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3246 : OPT_no_system_header_prefix; 3247 GenerateArg(Consumer, Opt, P.Prefix); 3248 } 3249 3250 for (const std::string &F : Opts.VFSOverlayFiles) 3251 GenerateArg(Consumer, OPT_ivfsoverlay, F); 3252 } 3253 3254 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3255 DiagnosticsEngine &Diags, 3256 const std::string &WorkingDir) { 3257 unsigned NumErrorsBefore = Diags.getNumErrors(); 3258 3259 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3260 3261 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3262 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3263 #include "clang/Driver/Options.inc" 3264 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3265 3266 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3267 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3268 3269 // Canonicalize -fmodules-cache-path before storing it. 3270 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3271 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3272 if (WorkingDir.empty()) 3273 llvm::sys::fs::make_absolute(P); 3274 else 3275 llvm::sys::fs::make_absolute(WorkingDir, P); 3276 } 3277 llvm::sys::path::remove_dots(P); 3278 Opts.ModuleCachePath = std::string(P); 3279 3280 // Only the -fmodule-file=<name>=<file> form. 3281 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3282 StringRef Val = A->getValue(); 3283 if (Val.contains('=')) { 3284 auto Split = Val.split('='); 3285 Opts.PrebuiltModuleFiles.insert_or_assign( 3286 std::string(Split.first), std::string(Split.second)); 3287 } 3288 } 3289 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3290 Opts.AddPrebuiltModulePath(A->getValue()); 3291 3292 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3293 StringRef MacroDef = A->getValue(); 3294 Opts.ModulesIgnoreMacros.insert( 3295 llvm::CachedHashString(MacroDef.split('=').first)); 3296 } 3297 3298 // Add -I..., -F..., and -index-header-map options in order. 3299 bool IsIndexHeaderMap = false; 3300 bool IsSysrootSpecified = 3301 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3302 3303 // Expand a leading `=` to the sysroot if one was passed (and it's not a 3304 // framework flag). 3305 auto PrefixHeaderPath = [IsSysrootSpecified, 3306 &Opts](const llvm::opt::Arg *A, 3307 bool IsFramework = false) -> std::string { 3308 assert(A->getNumValues() && "Unexpected empty search path flag!"); 3309 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3310 SmallString<32> Buffer; 3311 llvm::sys::path::append(Buffer, Opts.Sysroot, 3312 llvm::StringRef(A->getValue()).substr(1)); 3313 return std::string(Buffer); 3314 } 3315 return A->getValue(); 3316 }; 3317 3318 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3319 if (A->getOption().matches(OPT_index_header_map)) { 3320 // -index-header-map applies to the next -I or -F. 3321 IsIndexHeaderMap = true; 3322 continue; 3323 } 3324 3325 frontend::IncludeDirGroup Group = 3326 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3327 3328 bool IsFramework = A->getOption().matches(OPT_F); 3329 Opts.AddPath(PrefixHeaderPath(A, IsFramework), Group, IsFramework, 3330 /*IgnoreSysroot*/ true); 3331 IsIndexHeaderMap = false; 3332 } 3333 3334 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3335 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3336 for (const auto *A : 3337 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3338 if (A->getOption().matches(OPT_iprefix)) 3339 Prefix = A->getValue(); 3340 else if (A->getOption().matches(OPT_iwithprefix)) 3341 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3342 else 3343 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3344 } 3345 3346 for (const auto *A : Args.filtered(OPT_idirafter)) 3347 Opts.AddPath(PrefixHeaderPath(A), frontend::After, false, true); 3348 for (const auto *A : Args.filtered(OPT_iquote)) 3349 Opts.AddPath(PrefixHeaderPath(A), frontend::Quoted, false, true); 3350 3351 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) { 3352 if (A->getOption().matches(OPT_iwithsysroot)) { 3353 Opts.AddPath(A->getValue(), frontend::System, false, 3354 /*IgnoreSysRoot=*/false); 3355 continue; 3356 } 3357 Opts.AddPath(PrefixHeaderPath(A), frontend::System, false, true); 3358 } 3359 for (const auto *A : Args.filtered(OPT_iframework)) 3360 Opts.AddPath(A->getValue(), frontend::System, true, true); 3361 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3362 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3363 /*IgnoreSysRoot=*/false); 3364 3365 // Add the paths for the various language specific isystem flags. 3366 for (const auto *A : Args.filtered(OPT_c_isystem)) 3367 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3368 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3369 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3370 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3371 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3372 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3373 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3374 3375 // Add the internal paths from a driver that detects standard include paths. 3376 for (const auto *A : 3377 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3378 frontend::IncludeDirGroup Group = frontend::System; 3379 if (A->getOption().matches(OPT_internal_externc_isystem)) 3380 Group = frontend::ExternCSystem; 3381 Opts.AddPath(A->getValue(), Group, false, true); 3382 } 3383 3384 // Add the path prefixes which are implicitly treated as being system headers. 3385 for (const auto *A : 3386 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3387 Opts.AddSystemHeaderPrefix( 3388 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3389 3390 for (const auto *A : Args.filtered(OPT_ivfsoverlay, OPT_vfsoverlay)) 3391 Opts.AddVFSOverlayFile(A->getValue()); 3392 3393 return Diags.getNumErrors() == NumErrorsBefore; 3394 } 3395 3396 static void GenerateAPINotesArgs(const APINotesOptions &Opts, 3397 ArgumentConsumer Consumer) { 3398 if (!Opts.SwiftVersion.empty()) 3399 GenerateArg(Consumer, OPT_fapinotes_swift_version, 3400 Opts.SwiftVersion.getAsString()); 3401 3402 for (const auto &Path : Opts.ModuleSearchPaths) 3403 GenerateArg(Consumer, OPT_iapinotes_modules, Path); 3404 } 3405 3406 static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args, 3407 DiagnosticsEngine &diags) { 3408 if (const Arg *A = Args.getLastArg(OPT_fapinotes_swift_version)) { 3409 if (Opts.SwiftVersion.tryParse(A->getValue())) 3410 diags.Report(diag::err_drv_invalid_value) 3411 << A->getAsString(Args) << A->getValue(); 3412 } 3413 for (const Arg *A : Args.filtered(OPT_iapinotes_modules)) 3414 Opts.ModuleSearchPaths.push_back(A->getValue()); 3415 } 3416 3417 static void GeneratePointerAuthArgs(const LangOptions &Opts, 3418 ArgumentConsumer Consumer) { 3419 if (Opts.PointerAuthIntrinsics) 3420 GenerateArg(Consumer, OPT_fptrauth_intrinsics); 3421 if (Opts.PointerAuthCalls) 3422 GenerateArg(Consumer, OPT_fptrauth_calls); 3423 if (Opts.PointerAuthReturns) 3424 GenerateArg(Consumer, OPT_fptrauth_returns); 3425 if (Opts.PointerAuthIndirectGotos) 3426 GenerateArg(Consumer, OPT_fptrauth_indirect_gotos); 3427 if (Opts.PointerAuthAuthTraps) 3428 GenerateArg(Consumer, OPT_fptrauth_auth_traps); 3429 if (Opts.PointerAuthVTPtrAddressDiscrimination) 3430 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_address_discrimination); 3431 if (Opts.PointerAuthVTPtrTypeDiscrimination) 3432 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_type_discrimination); 3433 if (Opts.PointerAuthTypeInfoVTPtrDiscrimination) 3434 GenerateArg(Consumer, OPT_fptrauth_type_info_vtable_pointer_discrimination); 3435 if (Opts.PointerAuthFunctionTypeDiscrimination) 3436 GenerateArg(Consumer, OPT_fptrauth_function_pointer_type_discrimination); 3437 if (Opts.PointerAuthInitFini) 3438 GenerateArg(Consumer, OPT_fptrauth_init_fini); 3439 if (Opts.PointerAuthInitFiniAddressDiscrimination) 3440 GenerateArg(Consumer, OPT_fptrauth_init_fini_address_discrimination); 3441 } 3442 3443 static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args, 3444 DiagnosticsEngine &Diags) { 3445 Opts.PointerAuthIntrinsics = Args.hasArg(OPT_fptrauth_intrinsics); 3446 Opts.PointerAuthCalls = Args.hasArg(OPT_fptrauth_calls); 3447 Opts.PointerAuthReturns = Args.hasArg(OPT_fptrauth_returns); 3448 Opts.PointerAuthIndirectGotos = Args.hasArg(OPT_fptrauth_indirect_gotos); 3449 Opts.PointerAuthAuthTraps = Args.hasArg(OPT_fptrauth_auth_traps); 3450 Opts.PointerAuthVTPtrAddressDiscrimination = 3451 Args.hasArg(OPT_fptrauth_vtable_pointer_address_discrimination); 3452 Opts.PointerAuthVTPtrTypeDiscrimination = 3453 Args.hasArg(OPT_fptrauth_vtable_pointer_type_discrimination); 3454 Opts.PointerAuthTypeInfoVTPtrDiscrimination = 3455 Args.hasArg(OPT_fptrauth_type_info_vtable_pointer_discrimination); 3456 Opts.PointerAuthFunctionTypeDiscrimination = 3457 Args.hasArg(OPT_fptrauth_function_pointer_type_discrimination); 3458 Opts.PointerAuthInitFini = Args.hasArg(OPT_fptrauth_init_fini); 3459 Opts.PointerAuthInitFiniAddressDiscrimination = 3460 Args.hasArg(OPT_fptrauth_init_fini_address_discrimination); 3461 } 3462 3463 /// Check if input file kind and language standard are compatible. 3464 static bool IsInputCompatibleWithStandard(InputKind IK, 3465 const LangStandard &S) { 3466 switch (IK.getLanguage()) { 3467 case Language::Unknown: 3468 case Language::LLVM_IR: 3469 case Language::CIR: 3470 llvm_unreachable("should not parse language flags for this input"); 3471 3472 case Language::C: 3473 case Language::ObjC: 3474 case Language::RenderScript: 3475 return S.getLanguage() == Language::C; 3476 3477 case Language::OpenCL: 3478 return S.getLanguage() == Language::OpenCL || 3479 S.getLanguage() == Language::OpenCLCXX; 3480 3481 case Language::OpenCLCXX: 3482 return S.getLanguage() == Language::OpenCLCXX; 3483 3484 case Language::CXX: 3485 case Language::ObjCXX: 3486 return S.getLanguage() == Language::CXX; 3487 3488 case Language::CUDA: 3489 // FIXME: What -std= values should be permitted for CUDA compilations? 3490 return S.getLanguage() == Language::CUDA || 3491 S.getLanguage() == Language::CXX; 3492 3493 case Language::HIP: 3494 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3495 3496 case Language::Asm: 3497 // Accept (and ignore) all -std= values. 3498 // FIXME: The -std= value is not ignored; it affects the tokenization 3499 // and preprocessing rules if we're preprocessing this asm input. 3500 return true; 3501 3502 case Language::HLSL: 3503 return S.getLanguage() == Language::HLSL; 3504 } 3505 3506 llvm_unreachable("unexpected input language"); 3507 } 3508 3509 /// Get language name for given input kind. 3510 static StringRef GetInputKindName(InputKind IK) { 3511 switch (IK.getLanguage()) { 3512 case Language::C: 3513 return "C"; 3514 case Language::ObjC: 3515 return "Objective-C"; 3516 case Language::CXX: 3517 return "C++"; 3518 case Language::ObjCXX: 3519 return "Objective-C++"; 3520 case Language::OpenCL: 3521 return "OpenCL"; 3522 case Language::OpenCLCXX: 3523 return "C++ for OpenCL"; 3524 case Language::CUDA: 3525 return "CUDA"; 3526 case Language::RenderScript: 3527 return "RenderScript"; 3528 case Language::HIP: 3529 return "HIP"; 3530 3531 case Language::Asm: 3532 return "Asm"; 3533 case Language::LLVM_IR: 3534 return "LLVM IR"; 3535 case Language::CIR: 3536 return "Clang IR"; 3537 3538 case Language::HLSL: 3539 return "HLSL"; 3540 3541 case Language::Unknown: 3542 break; 3543 } 3544 llvm_unreachable("unknown input language"); 3545 } 3546 3547 void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts, 3548 ArgumentConsumer Consumer, 3549 const llvm::Triple &T, 3550 InputKind IK) { 3551 if (IK.getFormat() == InputKind::Precompiled || 3552 IK.getLanguage() == Language::LLVM_IR || 3553 IK.getLanguage() == Language::CIR) { 3554 if (Opts.ObjCAutoRefCount) 3555 GenerateArg(Consumer, OPT_fobjc_arc); 3556 if (Opts.PICLevel != 0) 3557 GenerateArg(Consumer, OPT_pic_level, Twine(Opts.PICLevel)); 3558 if (Opts.PIE) 3559 GenerateArg(Consumer, OPT_pic_is_pie); 3560 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3561 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3562 3563 return; 3564 } 3565 3566 OptSpecifier StdOpt; 3567 switch (Opts.LangStd) { 3568 case LangStandard::lang_opencl10: 3569 case LangStandard::lang_opencl11: 3570 case LangStandard::lang_opencl12: 3571 case LangStandard::lang_opencl20: 3572 case LangStandard::lang_opencl30: 3573 case LangStandard::lang_openclcpp10: 3574 case LangStandard::lang_openclcpp2021: 3575 StdOpt = OPT_cl_std_EQ; 3576 break; 3577 default: 3578 StdOpt = OPT_std_EQ; 3579 break; 3580 } 3581 3582 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3583 GenerateArg(Consumer, StdOpt, LangStandard.getName()); 3584 3585 if (Opts.IncludeDefaultHeader) 3586 GenerateArg(Consumer, OPT_finclude_default_header); 3587 if (Opts.DeclareOpenCLBuiltins) 3588 GenerateArg(Consumer, OPT_fdeclare_opencl_builtins); 3589 3590 const LangOptions *LangOpts = &Opts; 3591 3592 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3593 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3594 #include "clang/Driver/Options.inc" 3595 #undef LANG_OPTION_WITH_MARSHALLING 3596 3597 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3598 3599 if (Opts.ObjC) { 3600 GenerateArg(Consumer, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString()); 3601 3602 if (Opts.GC == LangOptions::GCOnly) 3603 GenerateArg(Consumer, OPT_fobjc_gc_only); 3604 else if (Opts.GC == LangOptions::HybridGC) 3605 GenerateArg(Consumer, OPT_fobjc_gc); 3606 else if (Opts.ObjCAutoRefCount == 1) 3607 GenerateArg(Consumer, OPT_fobjc_arc); 3608 3609 if (Opts.ObjCWeakRuntime) 3610 GenerateArg(Consumer, OPT_fobjc_runtime_has_weak); 3611 3612 if (Opts.ObjCWeak) 3613 GenerateArg(Consumer, OPT_fobjc_weak); 3614 3615 if (Opts.ObjCSubscriptingLegacyRuntime) 3616 GenerateArg(Consumer, OPT_fobjc_subscripting_legacy_runtime); 3617 } 3618 3619 if (Opts.GNUCVersion != 0) { 3620 unsigned Major = Opts.GNUCVersion / 100 / 100; 3621 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3622 unsigned Patch = Opts.GNUCVersion % 100; 3623 GenerateArg(Consumer, OPT_fgnuc_version_EQ, 3624 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch)); 3625 } 3626 3627 if (Opts.IgnoreXCOFFVisibility) 3628 GenerateArg(Consumer, OPT_mignore_xcoff_visibility); 3629 3630 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3631 GenerateArg(Consumer, OPT_ftrapv); 3632 GenerateArg(Consumer, OPT_ftrapv_handler, Opts.OverflowHandler); 3633 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3634 GenerateArg(Consumer, OPT_fwrapv); 3635 } 3636 3637 if (Opts.MSCompatibilityVersion != 0) { 3638 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3639 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3640 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3641 GenerateArg(Consumer, OPT_fms_compatibility_version, 3642 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor)); 3643 } 3644 3645 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 3646 T.isOSzOS()) { 3647 if (!Opts.Trigraphs) 3648 GenerateArg(Consumer, OPT_fno_trigraphs); 3649 } else { 3650 if (Opts.Trigraphs) 3651 GenerateArg(Consumer, OPT_ftrigraphs); 3652 } 3653 3654 if (T.isOSzOS() && !Opts.ZOSExt) 3655 GenerateArg(Consumer, OPT_fno_zos_extensions); 3656 else if (Opts.ZOSExt) 3657 GenerateArg(Consumer, OPT_fzos_extensions); 3658 3659 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3660 GenerateArg(Consumer, OPT_fblocks); 3661 3662 if (Opts.ConvergentFunctions && 3663 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice || 3664 Opts.HLSL)) 3665 GenerateArg(Consumer, OPT_fconvergent_functions); 3666 3667 if (Opts.NoBuiltin && !Opts.Freestanding) 3668 GenerateArg(Consumer, OPT_fno_builtin); 3669 3670 if (!Opts.NoBuiltin) 3671 for (const auto &Func : Opts.NoBuiltinFuncs) 3672 GenerateArg(Consumer, OPT_fno_builtin_, Func); 3673 3674 if (Opts.LongDoubleSize == 128) 3675 GenerateArg(Consumer, OPT_mlong_double_128); 3676 else if (Opts.LongDoubleSize == 64) 3677 GenerateArg(Consumer, OPT_mlong_double_64); 3678 else if (Opts.LongDoubleSize == 80) 3679 GenerateArg(Consumer, OPT_mlong_double_80); 3680 3681 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3682 3683 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3684 // '-fopenmp-targets='. 3685 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3686 GenerateArg(Consumer, OPT_fopenmp); 3687 3688 if (Opts.OpenMP != 51) 3689 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3690 3691 if (!Opts.OpenMPUseTLS) 3692 GenerateArg(Consumer, OPT_fnoopenmp_use_tls); 3693 3694 if (Opts.OpenMPIsTargetDevice) 3695 GenerateArg(Consumer, OPT_fopenmp_is_target_device); 3696 3697 if (Opts.OpenMPIRBuilder) 3698 GenerateArg(Consumer, OPT_fopenmp_enable_irbuilder); 3699 } 3700 3701 if (Opts.OpenMPSimd) { 3702 GenerateArg(Consumer, OPT_fopenmp_simd); 3703 3704 if (Opts.OpenMP != 51) 3705 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3706 } 3707 3708 if (Opts.OpenMPThreadSubscription) 3709 GenerateArg(Consumer, OPT_fopenmp_assume_threads_oversubscription); 3710 3711 if (Opts.OpenMPTeamSubscription) 3712 GenerateArg(Consumer, OPT_fopenmp_assume_teams_oversubscription); 3713 3714 if (Opts.OpenMPTargetDebug != 0) 3715 GenerateArg(Consumer, OPT_fopenmp_target_debug_EQ, 3716 Twine(Opts.OpenMPTargetDebug)); 3717 3718 if (Opts.OpenMPCUDANumSMs != 0) 3719 GenerateArg(Consumer, OPT_fopenmp_cuda_number_of_sm_EQ, 3720 Twine(Opts.OpenMPCUDANumSMs)); 3721 3722 if (Opts.OpenMPCUDABlocksPerSM != 0) 3723 GenerateArg(Consumer, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3724 Twine(Opts.OpenMPCUDABlocksPerSM)); 3725 3726 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3727 GenerateArg(Consumer, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3728 Twine(Opts.OpenMPCUDAReductionBufNum)); 3729 3730 if (!Opts.OMPTargetTriples.empty()) { 3731 std::string Targets; 3732 llvm::raw_string_ostream OS(Targets); 3733 llvm::interleave( 3734 Opts.OMPTargetTriples, OS, 3735 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3736 GenerateArg(Consumer, OPT_fopenmp_targets_EQ, Targets); 3737 } 3738 3739 if (!Opts.OMPHostIRFile.empty()) 3740 GenerateArg(Consumer, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile); 3741 3742 if (Opts.OpenMPCUDAMode) 3743 GenerateArg(Consumer, OPT_fopenmp_cuda_mode); 3744 3745 if (Opts.OpenACC) { 3746 GenerateArg(Consumer, OPT_fopenacc); 3747 if (!Opts.OpenACCMacroOverride.empty()) 3748 GenerateArg(Consumer, OPT_openacc_macro_override, 3749 Opts.OpenACCMacroOverride); 3750 } 3751 3752 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3753 // generated from CodeGenOptions. 3754 3755 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3756 GenerateArg(Consumer, OPT_ffp_contract, "fast"); 3757 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3758 GenerateArg(Consumer, OPT_ffp_contract, "on"); 3759 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3760 GenerateArg(Consumer, OPT_ffp_contract, "off"); 3761 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3762 GenerateArg(Consumer, OPT_ffp_contract, "fast-honor-pragmas"); 3763 3764 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3765 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3766 3767 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3768 for (const std::string &F : Opts.NoSanitizeFiles) 3769 GenerateArg(Consumer, OPT_fsanitize_ignorelist_EQ, F); 3770 3771 switch (Opts.getClangABICompat()) { 3772 case LangOptions::ClangABI::Ver3_8: 3773 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "3.8"); 3774 break; 3775 case LangOptions::ClangABI::Ver4: 3776 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "4.0"); 3777 break; 3778 case LangOptions::ClangABI::Ver6: 3779 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "6.0"); 3780 break; 3781 case LangOptions::ClangABI::Ver7: 3782 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "7.0"); 3783 break; 3784 case LangOptions::ClangABI::Ver9: 3785 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "9.0"); 3786 break; 3787 case LangOptions::ClangABI::Ver11: 3788 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "11.0"); 3789 break; 3790 case LangOptions::ClangABI::Ver12: 3791 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "12.0"); 3792 break; 3793 case LangOptions::ClangABI::Ver14: 3794 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "14.0"); 3795 break; 3796 case LangOptions::ClangABI::Ver15: 3797 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "15.0"); 3798 break; 3799 case LangOptions::ClangABI::Ver17: 3800 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "17.0"); 3801 break; 3802 case LangOptions::ClangABI::Ver18: 3803 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "18.0"); 3804 break; 3805 case LangOptions::ClangABI::Latest: 3806 break; 3807 } 3808 3809 if (Opts.getSignReturnAddressScope() == 3810 LangOptions::SignReturnAddressScopeKind::All) 3811 GenerateArg(Consumer, OPT_msign_return_address_EQ, "all"); 3812 else if (Opts.getSignReturnAddressScope() == 3813 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3814 GenerateArg(Consumer, OPT_msign_return_address_EQ, "non-leaf"); 3815 3816 if (Opts.getSignReturnAddressKey() == 3817 LangOptions::SignReturnAddressKeyKind::BKey) 3818 GenerateArg(Consumer, OPT_msign_return_address_key_EQ, "b_key"); 3819 3820 if (Opts.CXXABI) 3821 GenerateArg(Consumer, OPT_fcxx_abi_EQ, 3822 TargetCXXABI::getSpelling(*Opts.CXXABI)); 3823 3824 if (Opts.RelativeCXXABIVTables) 3825 GenerateArg(Consumer, OPT_fexperimental_relative_cxx_abi_vtables); 3826 else 3827 GenerateArg(Consumer, OPT_fno_experimental_relative_cxx_abi_vtables); 3828 3829 if (Opts.UseTargetPathSeparator) 3830 GenerateArg(Consumer, OPT_ffile_reproducible); 3831 else 3832 GenerateArg(Consumer, OPT_fno_file_reproducible); 3833 3834 for (const auto &MP : Opts.MacroPrefixMap) 3835 GenerateArg(Consumer, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second); 3836 3837 if (!Opts.RandstructSeed.empty()) 3838 GenerateArg(Consumer, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed); 3839 } 3840 3841 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3842 InputKind IK, const llvm::Triple &T, 3843 std::vector<std::string> &Includes, 3844 DiagnosticsEngine &Diags) { 3845 unsigned NumErrorsBefore = Diags.getNumErrors(); 3846 3847 if (IK.getFormat() == InputKind::Precompiled || 3848 IK.getLanguage() == Language::LLVM_IR || 3849 IK.getLanguage() == Language::CIR) { 3850 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3851 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3852 // what the input type is. 3853 if (Args.hasArg(OPT_fobjc_arc)) 3854 Opts.ObjCAutoRefCount = 1; 3855 // PICLevel and PIELevel are needed during code generation and this should 3856 // be set regardless of the input type. 3857 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3858 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3859 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3860 Diags, Opts.Sanitize); 3861 3862 return Diags.getNumErrors() == NumErrorsBefore; 3863 } 3864 3865 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3866 // FIXME: Should we really be parsing this for an Language::Asm input? 3867 3868 // FIXME: Cleanup per-file based stuff. 3869 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3870 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3871 LangStd = LangStandard::getLangKind(A->getValue()); 3872 if (LangStd == LangStandard::lang_unspecified) { 3873 Diags.Report(diag::err_drv_invalid_value) 3874 << A->getAsString(Args) << A->getValue(); 3875 // Report supported standards with short description. 3876 for (unsigned KindValue = 0; 3877 KindValue != LangStandard::lang_unspecified; 3878 ++KindValue) { 3879 const LangStandard &Std = LangStandard::getLangStandardForKind( 3880 static_cast<LangStandard::Kind>(KindValue)); 3881 if (IsInputCompatibleWithStandard(IK, Std)) { 3882 auto Diag = Diags.Report(diag::note_drv_use_standard); 3883 Diag << Std.getName() << Std.getDescription(); 3884 unsigned NumAliases = 0; 3885 #define LANGSTANDARD(id, name, lang, desc, features) 3886 #define LANGSTANDARD_ALIAS(id, alias) \ 3887 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3888 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3889 #include "clang/Basic/LangStandards.def" 3890 Diag << NumAliases; 3891 #define LANGSTANDARD(id, name, lang, desc, features) 3892 #define LANGSTANDARD_ALIAS(id, alias) \ 3893 if (KindValue == LangStandard::lang_##id) Diag << alias; 3894 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3895 #include "clang/Basic/LangStandards.def" 3896 } 3897 } 3898 } else { 3899 // Valid standard, check to make sure language and standard are 3900 // compatible. 3901 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3902 if (!IsInputCompatibleWithStandard(IK, Std)) { 3903 Diags.Report(diag::err_drv_argument_not_allowed_with) 3904 << A->getAsString(Args) << GetInputKindName(IK); 3905 } 3906 } 3907 } 3908 3909 // -cl-std only applies for OpenCL language standards. 3910 // Override the -std option in this case. 3911 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3912 LangStandard::Kind OpenCLLangStd 3913 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3914 .Cases("cl", "CL", LangStandard::lang_opencl10) 3915 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3916 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3917 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3918 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3919 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3920 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3921 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3922 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3923 .Default(LangStandard::lang_unspecified); 3924 3925 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3926 Diags.Report(diag::err_drv_invalid_value) 3927 << A->getAsString(Args) << A->getValue(); 3928 } 3929 else 3930 LangStd = OpenCLLangStd; 3931 } 3932 3933 // These need to be parsed now. They are used to set OpenCL defaults. 3934 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3935 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3936 3937 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3938 3939 // The key paths of codegen options defined in Options.td start with 3940 // "LangOpts->". Let's provide the expected variable name and type. 3941 LangOptions *LangOpts = &Opts; 3942 3943 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3944 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3945 #include "clang/Driver/Options.inc" 3946 #undef LANG_OPTION_WITH_MARSHALLING 3947 3948 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3949 StringRef Name = A->getValue(); 3950 if (Name == "full" || Name == "branch") { 3951 Opts.CFProtectionBranch = 1; 3952 } 3953 } 3954 3955 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3956 !Args.hasArg(OPT_sycl_std_EQ)) { 3957 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3958 // provide -sycl-std=, we want to default it to whatever the default SYCL 3959 // version is. I could not find a way to express this with the options 3960 // tablegen because we still want this value to be SYCL_None when the user 3961 // is not in device or host mode. 3962 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3963 } 3964 3965 if (Opts.ObjC) { 3966 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3967 StringRef value = arg->getValue(); 3968 if (Opts.ObjCRuntime.tryParse(value)) 3969 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3970 } 3971 3972 if (Args.hasArg(OPT_fobjc_gc_only)) 3973 Opts.setGC(LangOptions::GCOnly); 3974 else if (Args.hasArg(OPT_fobjc_gc)) 3975 Opts.setGC(LangOptions::HybridGC); 3976 else if (Args.hasArg(OPT_fobjc_arc)) { 3977 Opts.ObjCAutoRefCount = 1; 3978 if (!Opts.ObjCRuntime.allowsARC()) 3979 Diags.Report(diag::err_arc_unsupported_on_runtime); 3980 } 3981 3982 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3983 // whether the feature is actually enabled. This is predominantly 3984 // determined by -fobjc-runtime, but we allow it to be overridden 3985 // from the command line for testing purposes. 3986 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3987 Opts.ObjCWeakRuntime = 1; 3988 else 3989 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3990 3991 // ObjCWeak determines whether __weak is actually enabled. 3992 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3993 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3994 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3995 assert(!Opts.ObjCWeak); 3996 } else if (Opts.getGC() != LangOptions::NonGC) { 3997 Diags.Report(diag::err_objc_weak_with_gc); 3998 } else if (!Opts.ObjCWeakRuntime) { 3999 Diags.Report(diag::err_objc_weak_unsupported); 4000 } else { 4001 Opts.ObjCWeak = 1; 4002 } 4003 } else if (Opts.ObjCAutoRefCount) { 4004 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 4005 } 4006 4007 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 4008 Opts.ObjCSubscriptingLegacyRuntime = 4009 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 4010 } 4011 4012 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 4013 // Check that the version has 1 to 3 components and the minor and patch 4014 // versions fit in two decimal digits. 4015 VersionTuple GNUCVer; 4016 bool Invalid = GNUCVer.tryParse(A->getValue()); 4017 unsigned Major = GNUCVer.getMajor(); 4018 unsigned Minor = GNUCVer.getMinor().value_or(0); 4019 unsigned Patch = GNUCVer.getSubminor().value_or(0); 4020 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 4021 Diags.Report(diag::err_drv_invalid_value) 4022 << A->getAsString(Args) << A->getValue(); 4023 } 4024 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 4025 } 4026 4027 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 4028 Opts.IgnoreXCOFFVisibility = 1; 4029 4030 if (Args.hasArg(OPT_ftrapv)) { 4031 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 4032 // Set the handler, if one is specified. 4033 Opts.OverflowHandler = 4034 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 4035 } 4036 else if (Args.hasArg(OPT_fwrapv)) 4037 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 4038 4039 Opts.MSCompatibilityVersion = 0; 4040 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 4041 VersionTuple VT; 4042 if (VT.tryParse(A->getValue())) 4043 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 4044 << A->getValue(); 4045 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 4046 VT.getMinor().value_or(0) * 100000 + 4047 VT.getSubminor().value_or(0); 4048 } 4049 4050 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 4051 // is specified, or -std is set to a conforming mode. 4052 // Trigraphs are disabled by default in C++17 and C23 onwards. 4053 // For z/OS, trigraphs are enabled by default (without regard to the above). 4054 Opts.Trigraphs = 4055 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 4056 T.isOSzOS(); 4057 Opts.Trigraphs = 4058 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 4059 4060 Opts.ZOSExt = 4061 Args.hasFlag(OPT_fzos_extensions, OPT_fno_zos_extensions, T.isOSzOS()); 4062 4063 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 4064 && Opts.OpenCLVersion == 200); 4065 4066 Opts.ConvergentFunctions = Args.hasArg(OPT_fconvergent_functions) || 4067 Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 4068 Opts.SYCLIsDevice || Opts.HLSL; 4069 4070 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 4071 if (!Opts.NoBuiltin) 4072 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 4073 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 4074 if (A->getOption().matches(options::OPT_mlong_double_64)) 4075 Opts.LongDoubleSize = 64; 4076 else if (A->getOption().matches(options::OPT_mlong_double_80)) 4077 Opts.LongDoubleSize = 80; 4078 else if (A->getOption().matches(options::OPT_mlong_double_128)) 4079 Opts.LongDoubleSize = 128; 4080 else 4081 Opts.LongDoubleSize = 0; 4082 } 4083 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 4084 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4085 4086 llvm::sort(Opts.ModuleFeatures); 4087 4088 // -mrtd option 4089 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 4090 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 4091 Diags.Report(diag::err_drv_argument_not_allowed_with) 4092 << A->getSpelling() << "-fdefault-calling-conv"; 4093 else { 4094 switch (T.getArch()) { 4095 case llvm::Triple::x86: 4096 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 4097 break; 4098 case llvm::Triple::m68k: 4099 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall); 4100 break; 4101 default: 4102 Diags.Report(diag::err_drv_argument_not_allowed_with) 4103 << A->getSpelling() << T.getTriple(); 4104 } 4105 } 4106 } 4107 4108 // Check if -fopenmp is specified and set default version to 5.0. 4109 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 51 : 0; 4110 // Check if -fopenmp-simd is specified. 4111 bool IsSimdSpecified = 4112 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 4113 /*Default=*/false); 4114 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 4115 Opts.OpenMPUseTLS = 4116 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 4117 Opts.OpenMPIsTargetDevice = 4118 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_target_device); 4119 Opts.OpenMPIRBuilder = 4120 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 4121 bool IsTargetSpecified = 4122 Opts.OpenMPIsTargetDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 4123 4124 Opts.ConvergentFunctions = 4125 Opts.ConvergentFunctions || Opts.OpenMPIsTargetDevice; 4126 4127 if (Opts.OpenMP || Opts.OpenMPSimd) { 4128 if (int Version = getLastArgIntValue( 4129 Args, OPT_fopenmp_version_EQ, 4130 (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags)) 4131 Opts.OpenMP = Version; 4132 // Provide diagnostic when a given target is not expected to be an OpenMP 4133 // device or host. 4134 if (!Opts.OpenMPIsTargetDevice) { 4135 switch (T.getArch()) { 4136 default: 4137 break; 4138 // Add unsupported host targets here: 4139 case llvm::Triple::nvptx: 4140 case llvm::Triple::nvptx64: 4141 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 4142 break; 4143 } 4144 } 4145 } 4146 4147 // Set the flag to prevent the implementation from emitting device exception 4148 // handling code for those requiring so. 4149 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) || 4150 Opts.OpenCLCPlusPlus) { 4151 4152 Opts.Exceptions = 0; 4153 Opts.CXXExceptions = 0; 4154 } 4155 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) { 4156 Opts.OpenMPCUDANumSMs = 4157 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 4158 Opts.OpenMPCUDANumSMs, Diags); 4159 Opts.OpenMPCUDABlocksPerSM = 4160 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 4161 Opts.OpenMPCUDABlocksPerSM, Diags); 4162 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 4163 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 4164 Opts.OpenMPCUDAReductionBufNum, Diags); 4165 } 4166 4167 // Set the value of the debugging flag used in the new offloading device RTL. 4168 // Set either by a specific value or to a default if not specified. 4169 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 4170 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 4171 Opts.OpenMPTargetDebug = getLastArgIntValue( 4172 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 4173 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 4174 Opts.OpenMPTargetDebug = 1; 4175 } 4176 4177 if (Opts.OpenMPIsTargetDevice) { 4178 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 4179 Opts.OpenMPTeamSubscription = true; 4180 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 4181 Opts.OpenMPThreadSubscription = true; 4182 } 4183 4184 // Get the OpenMP target triples if any. 4185 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 4186 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 4187 auto getArchPtrSize = [](const llvm::Triple &T) { 4188 if (T.isArch16Bit()) 4189 return Arch16Bit; 4190 if (T.isArch32Bit()) 4191 return Arch32Bit; 4192 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 4193 return Arch64Bit; 4194 }; 4195 4196 for (unsigned i = 0; i < A->getNumValues(); ++i) { 4197 llvm::Triple TT(A->getValue(i)); 4198 4199 if (TT.getArch() == llvm::Triple::UnknownArch || 4200 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4201 TT.getArch() == llvm::Triple::systemz || 4202 TT.getArch() == llvm::Triple::nvptx || 4203 TT.getArch() == llvm::Triple::nvptx64 || 4204 TT.getArch() == llvm::Triple::amdgcn || 4205 TT.getArch() == llvm::Triple::x86 || 4206 TT.getArch() == llvm::Triple::x86_64)) 4207 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4208 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4209 Diags.Report(diag::err_drv_incompatible_omp_arch) 4210 << A->getValue(i) << T.str(); 4211 else 4212 Opts.OMPTargetTriples.push_back(TT); 4213 } 4214 } 4215 4216 // Get OpenMP host file path if any and report if a non existent file is 4217 // found 4218 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4219 Opts.OMPHostIRFile = A->getValue(); 4220 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4221 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4222 << Opts.OMPHostIRFile; 4223 } 4224 4225 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4226 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice && 4227 (T.isNVPTX() || T.isAMDGCN()) && 4228 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4229 4230 // OpenACC Configuration. 4231 if (Args.hasArg(options::OPT_fopenacc)) { 4232 Opts.OpenACC = true; 4233 4234 if (Arg *A = Args.getLastArg(options::OPT_openacc_macro_override)) 4235 Opts.OpenACCMacroOverride = A->getValue(); 4236 } 4237 4238 // FIXME: Eliminate this dependency. 4239 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4240 OptSize = getOptimizationLevelSize(Args); 4241 Opts.Optimize = Opt != 0; 4242 Opts.OptimizeSize = OptSize != 0; 4243 4244 // This is the __NO_INLINE__ define, which just depends on things like the 4245 // optimization level and -fno-inline, not actually whether the backend has 4246 // inlining enabled. 4247 Opts.NoInlineDefine = !Opts.Optimize; 4248 if (Arg *InlineArg = Args.getLastArg( 4249 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4250 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4251 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4252 Opts.NoInlineDefine = true; 4253 4254 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4255 StringRef Val = A->getValue(); 4256 if (Val == "fast") 4257 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4258 else if (Val == "on") 4259 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4260 else if (Val == "off") 4261 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4262 else if (Val == "fast-honor-pragmas") 4263 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4264 else 4265 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4266 } 4267 4268 if (auto *A = 4269 Args.getLastArg(OPT_fsanitize_undefined_ignore_overflow_pattern_EQ)) { 4270 for (int i = 0, n = A->getNumValues(); i != n; ++i) { 4271 Opts.OverflowPatternExclusionMask |= 4272 llvm::StringSwitch<unsigned>(A->getValue(i)) 4273 .Case("none", LangOptionsBase::None) 4274 .Case("all", LangOptionsBase::All) 4275 .Case("add-unsigned-overflow-test", 4276 LangOptionsBase::AddUnsignedOverflowTest) 4277 .Case("add-signed-overflow-test", 4278 LangOptionsBase::AddSignedOverflowTest) 4279 .Case("negated-unsigned-const", LangOptionsBase::NegUnsignedConst) 4280 .Case("unsigned-post-decr-while", 4281 LangOptionsBase::PostDecrInWhile) 4282 .Default(0); 4283 } 4284 } 4285 4286 // Parse -fsanitize= arguments. 4287 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4288 Diags, Opts.Sanitize); 4289 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4290 std::vector<std::string> systemIgnorelists = 4291 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4292 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4293 systemIgnorelists.begin(), 4294 systemIgnorelists.end()); 4295 4296 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4297 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4298 4299 StringRef Ver = A->getValue(); 4300 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4301 unsigned Major, Minor = 0; 4302 4303 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4304 // y or y.0 (4 <= y <= current version). 4305 if (!VerParts.first.starts_with("0") && 4306 !VerParts.first.getAsInteger(10, Major) && 3 <= Major && 4307 Major <= CLANG_VERSION_MAJOR && 4308 (Major == 3 4309 ? VerParts.second.size() == 1 && 4310 !VerParts.second.getAsInteger(10, Minor) 4311 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) { 4312 // Got a valid version number. 4313 if (Major == 3 && Minor <= 8) 4314 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4315 else if (Major <= 4) 4316 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4317 else if (Major <= 6) 4318 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4319 else if (Major <= 7) 4320 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4321 else if (Major <= 9) 4322 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4323 else if (Major <= 11) 4324 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4325 else if (Major <= 12) 4326 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4327 else if (Major <= 14) 4328 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4329 else if (Major <= 15) 4330 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4331 else if (Major <= 17) 4332 Opts.setClangABICompat(LangOptions::ClangABI::Ver17); 4333 else if (Major <= 18) 4334 Opts.setClangABICompat(LangOptions::ClangABI::Ver18); 4335 } else if (Ver != "latest") { 4336 Diags.Report(diag::err_drv_invalid_value) 4337 << A->getAsString(Args) << A->getValue(); 4338 } 4339 } 4340 4341 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4342 StringRef SignScope = A->getValue(); 4343 4344 if (SignScope.equals_insensitive("none")) 4345 Opts.setSignReturnAddressScope( 4346 LangOptions::SignReturnAddressScopeKind::None); 4347 else if (SignScope.equals_insensitive("all")) 4348 Opts.setSignReturnAddressScope( 4349 LangOptions::SignReturnAddressScopeKind::All); 4350 else if (SignScope.equals_insensitive("non-leaf")) 4351 Opts.setSignReturnAddressScope( 4352 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4353 else 4354 Diags.Report(diag::err_drv_invalid_value) 4355 << A->getAsString(Args) << SignScope; 4356 4357 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4358 StringRef SignKey = A->getValue(); 4359 if (!SignScope.empty() && !SignKey.empty()) { 4360 if (SignKey == "a_key") 4361 Opts.setSignReturnAddressKey( 4362 LangOptions::SignReturnAddressKeyKind::AKey); 4363 else if (SignKey == "b_key") 4364 Opts.setSignReturnAddressKey( 4365 LangOptions::SignReturnAddressKeyKind::BKey); 4366 else 4367 Diags.Report(diag::err_drv_invalid_value) 4368 << A->getAsString(Args) << SignKey; 4369 } 4370 } 4371 } 4372 4373 // The value can be empty, which indicates the system default should be used. 4374 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4375 if (!CXXABI.empty()) { 4376 if (!TargetCXXABI::isABI(CXXABI)) { 4377 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4378 } else { 4379 auto Kind = TargetCXXABI::getKind(CXXABI); 4380 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4381 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4382 else 4383 Opts.CXXABI = Kind; 4384 } 4385 } 4386 4387 Opts.RelativeCXXABIVTables = 4388 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4389 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4390 TargetCXXABI::usesRelativeVTables(T)); 4391 4392 // RTTI is on by default. 4393 bool HasRTTI = !Args.hasArg(options::OPT_fno_rtti); 4394 Opts.OmitVTableRTTI = 4395 Args.hasFlag(options::OPT_fexperimental_omit_vtable_rtti, 4396 options::OPT_fno_experimental_omit_vtable_rtti, false); 4397 if (Opts.OmitVTableRTTI && HasRTTI) 4398 Diags.Report(diag::err_drv_using_omit_rtti_component_without_no_rtti); 4399 4400 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4401 auto Split = StringRef(A).split('='); 4402 Opts.MacroPrefixMap.insert( 4403 {std::string(Split.first), std::string(Split.second)}); 4404 } 4405 4406 Opts.UseTargetPathSeparator = 4407 !Args.getLastArg(OPT_fno_file_reproducible) && 4408 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4409 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4410 Args.getLastArg(OPT_ffile_reproducible)); 4411 4412 // Error if -mvscale-min is unbounded. 4413 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4414 unsigned VScaleMin; 4415 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4416 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4417 } 4418 4419 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4420 std::ifstream SeedFile(A->getValue(0)); 4421 4422 if (!SeedFile.is_open()) 4423 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4424 << A->getValue(0); 4425 4426 std::getline(SeedFile, Opts.RandstructSeed); 4427 } 4428 4429 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4430 Opts.RandstructSeed = A->getValue(0); 4431 4432 // Validate options for HLSL 4433 if (Opts.HLSL) { 4434 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to 4435 // handle PhysicalStorageBuffer64 memory model 4436 if (T.isDXIL() || T.isSPIRVLogical()) { 4437 enum { ShaderModel, VulkanEnv, ShaderStage }; 4438 enum { OS, Environment }; 4439 4440 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel; 4441 4442 if (T.getOSName().empty()) { 4443 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4444 << ExpectedOS << OS << T.str(); 4445 } else if (T.getEnvironmentName().empty()) { 4446 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4447 << ShaderStage << Environment << T.str(); 4448 } else if (!T.isShaderStageEnvironment()) { 4449 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4450 << ShaderStage << T.getEnvironmentName() << T.str(); 4451 } 4452 4453 if (T.isDXIL()) { 4454 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) { 4455 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4456 << ShaderModel << T.getOSName() << T.str(); 4457 } 4458 // Validate that if fnative-half-type is given, that 4459 // the language standard is at least hlsl2018, and that 4460 // the target shader model is at least 6.2. 4461 if (Args.getLastArg(OPT_fnative_half_type)) { 4462 const LangStandard &Std = 4463 LangStandard::getLangStandardForKind(Opts.LangStd); 4464 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018 && 4465 T.getOSVersion() >= VersionTuple(6, 2))) 4466 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4467 << "-enable-16bit-types" << true << Std.getName() 4468 << T.getOSVersion().getAsString(); 4469 } 4470 } else if (T.isSPIRVLogical()) { 4471 if (!T.isVulkanOS() || T.getVulkanVersion() == VersionTuple(0)) { 4472 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4473 << VulkanEnv << T.getOSName() << T.str(); 4474 } 4475 if (Args.getLastArg(OPT_fnative_half_type)) { 4476 const LangStandard &Std = 4477 LangStandard::getLangStandardForKind(Opts.LangStd); 4478 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018)) 4479 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4480 << "-fnative-half-type" << false << Std.getName(); 4481 } 4482 } else { 4483 llvm_unreachable("expected DXIL or SPIR-V target"); 4484 } 4485 } else 4486 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4487 } 4488 4489 return Diags.getNumErrors() == NumErrorsBefore; 4490 } 4491 4492 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4493 switch (Action) { 4494 case frontend::ASTDeclList: 4495 case frontend::ASTDump: 4496 case frontend::ASTPrint: 4497 case frontend::ASTView: 4498 case frontend::EmitAssembly: 4499 case frontend::EmitBC: 4500 case frontend::EmitCIR: 4501 case frontend::EmitHTML: 4502 case frontend::EmitLLVM: 4503 case frontend::EmitLLVMOnly: 4504 case frontend::EmitCodeGenOnly: 4505 case frontend::EmitObj: 4506 case frontend::ExtractAPI: 4507 case frontend::FixIt: 4508 case frontend::GenerateModule: 4509 case frontend::GenerateModuleInterface: 4510 case frontend::GenerateReducedModuleInterface: 4511 case frontend::GenerateHeaderUnit: 4512 case frontend::GeneratePCH: 4513 case frontend::GenerateInterfaceStubs: 4514 case frontend::ParseSyntaxOnly: 4515 case frontend::ModuleFileInfo: 4516 case frontend::VerifyPCH: 4517 case frontend::PluginAction: 4518 case frontend::RewriteObjC: 4519 case frontend::RewriteTest: 4520 case frontend::RunAnalysis: 4521 case frontend::TemplightDump: 4522 case frontend::MigrateSource: 4523 return false; 4524 4525 case frontend::DumpCompilerOptions: 4526 case frontend::DumpRawTokens: 4527 case frontend::DumpTokens: 4528 case frontend::InitOnly: 4529 case frontend::PrintPreamble: 4530 case frontend::PrintPreprocessedInput: 4531 case frontend::RewriteMacros: 4532 case frontend::RunPreprocessorOnly: 4533 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4534 return true; 4535 } 4536 llvm_unreachable("invalid frontend action"); 4537 } 4538 4539 static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts, 4540 ArgumentConsumer Consumer, 4541 const LangOptions &LangOpts, 4542 const FrontendOptions &FrontendOpts, 4543 const CodeGenOptions &CodeGenOpts) { 4544 const PreprocessorOptions *PreprocessorOpts = &Opts; 4545 4546 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4547 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4548 #include "clang/Driver/Options.inc" 4549 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4550 4551 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4552 GenerateArg(Consumer, OPT_pch_through_hdrstop_use); 4553 4554 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4555 GenerateArg(Consumer, OPT_error_on_deserialized_pch_decl, D); 4556 4557 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4558 GenerateArg(Consumer, OPT_preamble_bytes_EQ, 4559 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4560 (Opts.PrecompiledPreambleBytes.second ? "1" : "0")); 4561 4562 for (const auto &M : Opts.Macros) { 4563 // Don't generate __CET__ macro definitions. They are implied by the 4564 // -fcf-protection option that is generated elsewhere. 4565 if (M.first == "__CET__=1" && !M.second && 4566 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4567 continue; 4568 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4569 !CodeGenOpts.CFProtectionBranch) 4570 continue; 4571 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4572 CodeGenOpts.CFProtectionBranch) 4573 continue; 4574 4575 GenerateArg(Consumer, M.second ? OPT_U : OPT_D, M.first); 4576 } 4577 4578 for (const auto &I : Opts.Includes) { 4579 // Don't generate OpenCL includes. They are implied by other flags that are 4580 // generated elsewhere. 4581 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4582 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4583 I == "opencl-c.h")) 4584 continue; 4585 // Don't generate HLSL includes. They are implied by other flags that are 4586 // generated elsewhere. 4587 if (LangOpts.HLSL && I == "hlsl.h") 4588 continue; 4589 4590 GenerateArg(Consumer, OPT_include, I); 4591 } 4592 4593 for (const auto &CI : Opts.ChainedIncludes) 4594 GenerateArg(Consumer, OPT_chain_include, CI); 4595 4596 for (const auto &RF : Opts.RemappedFiles) 4597 GenerateArg(Consumer, OPT_remap_file, RF.first + ";" + RF.second); 4598 4599 if (Opts.SourceDateEpoch) 4600 GenerateArg(Consumer, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch)); 4601 4602 if (Opts.DefineTargetOSMacros) 4603 GenerateArg(Consumer, OPT_fdefine_target_os_macros); 4604 4605 for (const auto &EmbedEntry : Opts.EmbedEntries) 4606 GenerateArg(Consumer, OPT_embed_dir_EQ, EmbedEntry); 4607 4608 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4609 // generated elsewhere. 4610 } 4611 4612 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4613 DiagnosticsEngine &Diags, 4614 frontend::ActionKind Action, 4615 const FrontendOptions &FrontendOpts) { 4616 unsigned NumErrorsBefore = Diags.getNumErrors(); 4617 4618 PreprocessorOptions *PreprocessorOpts = &Opts; 4619 4620 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4621 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4622 #include "clang/Driver/Options.inc" 4623 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4624 4625 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4626 Args.hasArg(OPT_pch_through_hdrstop_use); 4627 4628 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4629 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4630 4631 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4632 StringRef Value(A->getValue()); 4633 size_t Comma = Value.find(','); 4634 unsigned Bytes = 0; 4635 unsigned EndOfLine = 0; 4636 4637 if (Comma == StringRef::npos || 4638 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4639 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4640 Diags.Report(diag::err_drv_preamble_format); 4641 else { 4642 Opts.PrecompiledPreambleBytes.first = Bytes; 4643 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4644 } 4645 } 4646 4647 // Add the __CET__ macro if a CFProtection option is set. 4648 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4649 StringRef Name = A->getValue(); 4650 if (Name == "branch") 4651 Opts.addMacroDef("__CET__=1"); 4652 else if (Name == "return") 4653 Opts.addMacroDef("__CET__=2"); 4654 else if (Name == "full") 4655 Opts.addMacroDef("__CET__=3"); 4656 } 4657 4658 // Add macros from the command line. 4659 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4660 if (A->getOption().matches(OPT_D)) 4661 Opts.addMacroDef(A->getValue()); 4662 else 4663 Opts.addMacroUndef(A->getValue()); 4664 } 4665 4666 // Add the ordered list of -includes. 4667 for (const auto *A : Args.filtered(OPT_include)) 4668 Opts.Includes.emplace_back(A->getValue()); 4669 4670 for (const auto *A : Args.filtered(OPT_chain_include)) 4671 Opts.ChainedIncludes.emplace_back(A->getValue()); 4672 4673 for (const auto *A : Args.filtered(OPT_remap_file)) { 4674 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4675 4676 if (Split.second.empty()) { 4677 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4678 continue; 4679 } 4680 4681 Opts.addRemappedFile(Split.first, Split.second); 4682 } 4683 4684 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4685 StringRef Epoch = A->getValue(); 4686 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4687 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4688 // 9999-12-31T23:59:59Z) as the upper bound. 4689 const uint64_t MaxTimestamp = 4690 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4691 uint64_t V; 4692 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4693 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4694 << Epoch << MaxTimestamp; 4695 } else { 4696 Opts.SourceDateEpoch = V; 4697 } 4698 } 4699 4700 for (const auto *A : Args.filtered(OPT_embed_dir_EQ)) { 4701 StringRef Val = A->getValue(); 4702 Opts.EmbedEntries.push_back(std::string(Val)); 4703 } 4704 4705 // Always avoid lexing editor placeholders when we're just running the 4706 // preprocessor as we never want to emit the 4707 // "editor placeholder in source file" error in PP only mode. 4708 if (isStrictlyPreprocessorAction(Action)) 4709 Opts.LexEditorPlaceholders = false; 4710 4711 Opts.DefineTargetOSMacros = 4712 Args.hasFlag(OPT_fdefine_target_os_macros, 4713 OPT_fno_define_target_os_macros, Opts.DefineTargetOSMacros); 4714 4715 return Diags.getNumErrors() == NumErrorsBefore; 4716 } 4717 4718 static void 4719 GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts, 4720 ArgumentConsumer Consumer, 4721 frontend::ActionKind Action) { 4722 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4723 4724 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4725 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4726 #include "clang/Driver/Options.inc" 4727 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4728 4729 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4730 if (Generate_dM) 4731 GenerateArg(Consumer, OPT_dM); 4732 if (!Generate_dM && Opts.ShowMacros) 4733 GenerateArg(Consumer, OPT_dD); 4734 if (Opts.DirectivesOnly) 4735 GenerateArg(Consumer, OPT_fdirectives_only); 4736 } 4737 4738 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4739 ArgList &Args, DiagnosticsEngine &Diags, 4740 frontend::ActionKind Action) { 4741 unsigned NumErrorsBefore = Diags.getNumErrors(); 4742 4743 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4744 4745 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4746 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4747 #include "clang/Driver/Options.inc" 4748 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4749 4750 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4751 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4752 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4753 4754 return Diags.getNumErrors() == NumErrorsBefore; 4755 } 4756 4757 static void GenerateTargetArgs(const TargetOptions &Opts, 4758 ArgumentConsumer Consumer) { 4759 const TargetOptions *TargetOpts = &Opts; 4760 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4761 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4762 #include "clang/Driver/Options.inc" 4763 #undef TARGET_OPTION_WITH_MARSHALLING 4764 4765 if (!Opts.SDKVersion.empty()) 4766 GenerateArg(Consumer, OPT_target_sdk_version_EQ, 4767 Opts.SDKVersion.getAsString()); 4768 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4769 GenerateArg(Consumer, OPT_darwin_target_variant_sdk_version_EQ, 4770 Opts.DarwinTargetVariantSDKVersion.getAsString()); 4771 } 4772 4773 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4774 DiagnosticsEngine &Diags) { 4775 unsigned NumErrorsBefore = Diags.getNumErrors(); 4776 4777 TargetOptions *TargetOpts = &Opts; 4778 4779 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4780 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4781 #include "clang/Driver/Options.inc" 4782 #undef TARGET_OPTION_WITH_MARSHALLING 4783 4784 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4785 llvm::VersionTuple Version; 4786 if (Version.tryParse(A->getValue())) 4787 Diags.Report(diag::err_drv_invalid_value) 4788 << A->getAsString(Args) << A->getValue(); 4789 else 4790 Opts.SDKVersion = Version; 4791 } 4792 if (Arg *A = 4793 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4794 llvm::VersionTuple Version; 4795 if (Version.tryParse(A->getValue())) 4796 Diags.Report(diag::err_drv_invalid_value) 4797 << A->getAsString(Args) << A->getValue(); 4798 else 4799 Opts.DarwinTargetVariantSDKVersion = Version; 4800 } 4801 4802 return Diags.getNumErrors() == NumErrorsBefore; 4803 } 4804 4805 bool CompilerInvocation::CreateFromArgsImpl( 4806 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4807 DiagnosticsEngine &Diags, const char *Argv0) { 4808 unsigned NumErrorsBefore = Diags.getNumErrors(); 4809 4810 // Parse the arguments. 4811 const OptTable &Opts = getDriverOptTable(); 4812 llvm::opt::Visibility VisibilityMask(options::CC1Option); 4813 unsigned MissingArgIndex, MissingArgCount; 4814 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4815 MissingArgCount, VisibilityMask); 4816 LangOptions &LangOpts = Res.getLangOpts(); 4817 4818 // Check for missing argument error. 4819 if (MissingArgCount) 4820 Diags.Report(diag::err_drv_missing_argument) 4821 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4822 4823 // Issue errors on unknown arguments. 4824 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4825 auto ArgString = A->getAsString(Args); 4826 std::string Nearest; 4827 if (Opts.findNearest(ArgString, Nearest, VisibilityMask) > 1) 4828 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4829 else 4830 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4831 << ArgString << Nearest; 4832 } 4833 4834 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4835 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4836 ParseAnalyzerArgs(Res.getAnalyzerOpts(), Args, Diags); 4837 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4838 /*DefaultDiagColor=*/false); 4839 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4840 // FIXME: We shouldn't have to pass the DashX option around here 4841 InputKind DashX = Res.getFrontendOpts().DashX; 4842 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4843 llvm::Triple T(Res.getTargetOpts().Triple); 4844 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4845 Res.getFileSystemOpts().WorkingDir); 4846 ParseAPINotesArgs(Res.getAPINotesOpts(), Args, Diags); 4847 4848 ParsePointerAuthArgs(LangOpts, Args, Diags); 4849 4850 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4851 Diags); 4852 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4853 LangOpts.ObjCExceptions = 1; 4854 4855 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4856 if (Warning == "misexpect" && 4857 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4858 Res.getCodeGenOpts().MisExpect = true; 4859 } 4860 } 4861 4862 if (LangOpts.CUDA) { 4863 // During CUDA device-side compilation, the aux triple is the 4864 // triple used for host compilation. 4865 if (LangOpts.CUDAIsDevice) 4866 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4867 } 4868 4869 // Set the triple of the host for OpenMP device compile. 4870 if (LangOpts.OpenMPIsTargetDevice) 4871 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4872 4873 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4874 Res.getFrontendOpts().OutputFile, LangOpts); 4875 4876 // FIXME: Override value name discarding when asan or msan is used because the 4877 // backend passes depend on the name of the alloca in order to print out 4878 // names. 4879 Res.getCodeGenOpts().DiscardValueNames &= 4880 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4881 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4882 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4883 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4884 4885 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4886 Res.getFrontendOpts().ProgramAction, 4887 Res.getFrontendOpts()); 4888 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4889 Res.getFrontendOpts().ProgramAction); 4890 4891 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4892 Res.getFrontendOpts().ProgramAction, 4893 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4894 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4895 Res.getDependencyOutputOpts().Targets.empty()) 4896 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4897 4898 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4899 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4900 !Res.getLangOpts().Sanitize.empty()) { 4901 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4902 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4903 } 4904 4905 // Store the command-line for using in the CodeView backend. 4906 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4907 Res.getCodeGenOpts().Argv0 = Argv0; 4908 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4909 } 4910 4911 // Set PGOOptions. Need to create a temporary VFS to read the profile 4912 // to determine the PGO type. 4913 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 4914 auto FS = 4915 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 4916 Diags, llvm::vfs::getRealFileSystem()); 4917 setPGOUseInstrumentor(Res.getCodeGenOpts(), 4918 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 4919 Diags); 4920 } 4921 4922 FixupInvocation(Res, Diags, Args, DashX); 4923 4924 return Diags.getNumErrors() == NumErrorsBefore; 4925 } 4926 4927 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4928 ArrayRef<const char *> CommandLineArgs, 4929 DiagnosticsEngine &Diags, 4930 const char *Argv0) { 4931 CompilerInvocation DummyInvocation; 4932 4933 return RoundTrip( 4934 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4935 DiagnosticsEngine &Diags, const char *Argv0) { 4936 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4937 }, 4938 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4939 StringAllocator SA) { 4940 Args.push_back("-cc1"); 4941 Invocation.generateCC1CommandLine(Args, SA); 4942 }, 4943 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4944 } 4945 4946 std::string CompilerInvocation::getModuleHash() const { 4947 // FIXME: Consider using SHA1 instead of MD5. 4948 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder; 4949 4950 // Note: For QoI reasons, the things we use as a hash here should all be 4951 // dumped via the -module-info flag. 4952 4953 // Start the signature with the compiler version. 4954 HBuilder.add(getClangFullRepositoryVersion()); 4955 4956 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4957 // and getClangFullRepositoryVersion() doesn't include git revision. 4958 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4959 4960 // Extend the signature with the language options 4961 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4962 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4963 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4964 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4965 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4966 #include "clang/Basic/LangOptions.def" 4967 4968 HBuilder.addRange(getLangOpts().ModuleFeatures); 4969 4970 HBuilder.add(getLangOpts().ObjCRuntime); 4971 HBuilder.addRange(getLangOpts().CommentOpts.BlockCommandNames); 4972 4973 // Extend the signature with the target options. 4974 HBuilder.add(getTargetOpts().Triple, getTargetOpts().CPU, 4975 getTargetOpts().TuneCPU, getTargetOpts().ABI); 4976 HBuilder.addRange(getTargetOpts().FeaturesAsWritten); 4977 4978 // Extend the signature with preprocessor options. 4979 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4980 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4981 4982 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4983 for (const auto &Macro : getPreprocessorOpts().Macros) { 4984 // If we're supposed to ignore this macro for the purposes of modules, 4985 // don't put it into the hash. 4986 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4987 // Check whether we're ignoring this macro. 4988 StringRef MacroDef = Macro.first; 4989 if (hsOpts.ModulesIgnoreMacros.count( 4990 llvm::CachedHashString(MacroDef.split('=').first))) 4991 continue; 4992 } 4993 4994 HBuilder.add(Macro); 4995 } 4996 4997 // Extend the signature with the sysroot and other header search options. 4998 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4999 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 5000 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 5001 hsOpts.ModulesValidateDiagnosticOptions); 5002 HBuilder.add(hsOpts.ResourceDir); 5003 5004 if (hsOpts.ModulesStrictContextHash) { 5005 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 5006 HBuilder.addRange(hsOpts.UserEntries); 5007 HBuilder.addRange(hsOpts.VFSOverlayFiles); 5008 5009 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 5010 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 5011 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 5012 HBuilder.add(diagOpts.get##Name()); 5013 #include "clang/Basic/DiagnosticOptions.def" 5014 #undef DIAGOPT 5015 #undef ENUM_DIAGOPT 5016 } 5017 5018 // Extend the signature with the user build path. 5019 HBuilder.add(hsOpts.ModuleUserBuildPath); 5020 5021 // Extend the signature with the module file extensions. 5022 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 5023 ext->hashExtension(HBuilder); 5024 5025 // Extend the signature with the Swift version for API notes. 5026 const APINotesOptions &APINotesOpts = getAPINotesOpts(); 5027 if (!APINotesOpts.SwiftVersion.empty()) { 5028 HBuilder.add(APINotesOpts.SwiftVersion.getMajor()); 5029 if (auto Minor = APINotesOpts.SwiftVersion.getMinor()) 5030 HBuilder.add(*Minor); 5031 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor()) 5032 HBuilder.add(*Subminor); 5033 if (auto Build = APINotesOpts.SwiftVersion.getBuild()) 5034 HBuilder.add(*Build); 5035 } 5036 5037 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 5038 // affects the debug info in the PCM. 5039 if (getCodeGenOpts().DebugTypeExtRefs) 5040 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 5041 5042 // Extend the signature with the affecting debug options. 5043 if (getHeaderSearchOpts().ModuleFormat == "obj") { 5044 #define DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 5045 #define VALUE_DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 5046 #define ENUM_DEBUGOPT(Name, Type, Bits, Default) \ 5047 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name())); 5048 #define BENIGN_DEBUGOPT(Name, Bits, Default) 5049 #define BENIGN_VALUE_DEBUGOPT(Name, Bits, Default) 5050 #define BENIGN_ENUM_DEBUGOPT(Name, Type, Bits, Default) 5051 #include "clang/Basic/DebugOptions.def" 5052 } 5053 5054 // Extend the signature with the enabled sanitizers, if at least one is 5055 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 5056 SanitizerSet SanHash = getLangOpts().Sanitize; 5057 SanHash.clear(getPPTransparentSanitizers()); 5058 if (!SanHash.empty()) 5059 HBuilder.add(SanHash.Mask); 5060 5061 llvm::MD5::MD5Result Result; 5062 HBuilder.getHasher().final(Result); 5063 uint64_t Hash = Result.high() ^ Result.low(); 5064 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 5065 } 5066 5067 void CompilerInvocationBase::generateCC1CommandLine( 5068 ArgumentConsumer Consumer) const { 5069 llvm::Triple T(getTargetOpts().Triple); 5070 5071 GenerateFileSystemArgs(getFileSystemOpts(), Consumer); 5072 GenerateMigratorArgs(getMigratorOpts(), Consumer); 5073 GenerateAnalyzerArgs(getAnalyzerOpts(), Consumer); 5074 GenerateDiagnosticArgs(getDiagnosticOpts(), Consumer, 5075 /*DefaultDiagColor=*/false); 5076 GenerateFrontendArgs(getFrontendOpts(), Consumer, getLangOpts().IsHeaderFile); 5077 GenerateTargetArgs(getTargetOpts(), Consumer); 5078 GenerateHeaderSearchArgs(getHeaderSearchOpts(), Consumer); 5079 GenerateAPINotesArgs(getAPINotesOpts(), Consumer); 5080 GeneratePointerAuthArgs(getLangOpts(), Consumer); 5081 GenerateLangArgs(getLangOpts(), Consumer, T, getFrontendOpts().DashX); 5082 GenerateCodeGenArgs(getCodeGenOpts(), Consumer, T, 5083 getFrontendOpts().OutputFile, &getLangOpts()); 5084 GeneratePreprocessorArgs(getPreprocessorOpts(), Consumer, getLangOpts(), 5085 getFrontendOpts(), getCodeGenOpts()); 5086 GeneratePreprocessorOutputArgs(getPreprocessorOutputOpts(), Consumer, 5087 getFrontendOpts().ProgramAction); 5088 GenerateDependencyOutputArgs(getDependencyOutputOpts(), Consumer); 5089 } 5090 5091 std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const { 5092 std::vector<std::string> Args{"-cc1"}; 5093 generateCC1CommandLine( 5094 [&Args](const Twine &Arg) { Args.push_back(Arg.str()); }); 5095 return Args; 5096 } 5097 5098 void CompilerInvocation::resetNonModularOptions() { 5099 getLangOpts().resetNonModularOptions(); 5100 getPreprocessorOpts().resetNonModularOptions(); 5101 getCodeGenOpts().resetNonModularOptions(getHeaderSearchOpts().ModuleFormat); 5102 } 5103 5104 void CompilerInvocation::clearImplicitModuleBuildOptions() { 5105 getLangOpts().ImplicitModules = false; 5106 getHeaderSearchOpts().ImplicitModuleMaps = false; 5107 getHeaderSearchOpts().ModuleCachePath.clear(); 5108 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 5109 getHeaderSearchOpts().BuildSessionTimestamp = 0; 5110 // The specific values we canonicalize to for pruning don't affect behaviour, 5111 /// so use the default values so they may be dropped from the command-line. 5112 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 5113 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 5114 } 5115 5116 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5117 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 5118 DiagnosticsEngine &Diags) { 5119 return createVFSFromCompilerInvocation(CI, Diags, 5120 llvm::vfs::getRealFileSystem()); 5121 } 5122 5123 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5124 clang::createVFSFromCompilerInvocation( 5125 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 5126 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5127 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 5128 Diags, std::move(BaseFS)); 5129 } 5130 5131 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 5132 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 5133 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5134 if (VFSOverlayFiles.empty()) 5135 return BaseFS; 5136 5137 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 5138 // earlier vfs files are on the bottom 5139 for (const auto &File : VFSOverlayFiles) { 5140 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 5141 Result->getBufferForFile(File); 5142 if (!Buffer) { 5143 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 5144 continue; 5145 } 5146 5147 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 5148 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 5149 /*DiagContext*/ nullptr, Result); 5150 if (!FS) { 5151 Diags.Report(diag::err_invalid_vfs_overlay) << File; 5152 continue; 5153 } 5154 5155 Result = FS; 5156 } 5157 return Result; 5158 } 5159