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