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/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/HashBuilder.h" 82 #include "llvm/Support/Host.h" 83 #include "llvm/Support/MathExtras.h" 84 #include "llvm/Support/MemoryBuffer.h" 85 #include "llvm/Support/Path.h" 86 #include "llvm/Support/Process.h" 87 #include "llvm/Support/Regex.h" 88 #include "llvm/Support/VersionTuple.h" 89 #include "llvm/Support/VirtualFileSystem.h" 90 #include "llvm/Support/raw_ostream.h" 91 #include "llvm/Target/TargetOptions.h" 92 #include <algorithm> 93 #include <atomic> 94 #include <cassert> 95 #include <cstddef> 96 #include <cstring> 97 #include <fstream> 98 #include <memory> 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 inline Expected<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 CompilerInvocationRefBase::CompilerInvocationRefBase() 129 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 130 DiagnosticOpts(new DiagnosticOptions()), 131 HeaderSearchOpts(new HeaderSearchOptions()), 132 PreprocessorOpts(new PreprocessorOptions()), 133 AnalyzerOpts(new AnalyzerOptions()) {} 134 135 CompilerInvocationRefBase::CompilerInvocationRefBase( 136 const CompilerInvocationRefBase &X) 137 : LangOpts(new LangOptions(*X.getLangOpts())), 138 TargetOpts(new TargetOptions(X.getTargetOpts())), 139 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 140 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 141 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 142 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 143 144 CompilerInvocationRefBase::CompilerInvocationRefBase( 145 CompilerInvocationRefBase &&X) = default; 146 147 CompilerInvocationRefBase & 148 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 149 LangOpts.swap(X.LangOpts); 150 TargetOpts.swap(X.TargetOpts); 151 DiagnosticOpts.swap(X.DiagnosticOpts); 152 HeaderSearchOpts.swap(X.HeaderSearchOpts); 153 PreprocessorOpts.swap(X.PreprocessorOpts); 154 AnalyzerOpts.swap(X.AnalyzerOpts); 155 return *this; 156 } 157 158 CompilerInvocationRefBase & 159 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 160 161 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 162 163 //===----------------------------------------------------------------------===// 164 // Normalizers 165 //===----------------------------------------------------------------------===// 166 167 #define SIMPLE_ENUM_VALUE_TABLE 168 #include "clang/Driver/Options.inc" 169 #undef SIMPLE_ENUM_VALUE_TABLE 170 171 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 172 unsigned TableIndex, 173 const ArgList &Args, 174 DiagnosticsEngine &Diags) { 175 if (Args.hasArg(Opt)) 176 return true; 177 return None; 178 } 179 180 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 181 const ArgList &Args, 182 DiagnosticsEngine &) { 183 if (Args.hasArg(Opt)) 184 return false; 185 return None; 186 } 187 188 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 189 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 190 /// unnecessary template instantiations and just ignore it with a variadic 191 /// argument. 192 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 193 const char *Spelling, 194 CompilerInvocation::StringAllocator, 195 Option::OptionClass, unsigned, /*T*/...) { 196 Args.push_back(Spelling); 197 } 198 199 template <typename T> static constexpr bool is_uint64_t_convertible() { 200 return !std::is_same<T, uint64_t>::value && 201 llvm::is_integral_or_enum<T>::value; 202 } 203 204 template <typename T, 205 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 206 static auto makeFlagToValueNormalizer(T Value) { 207 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 208 DiagnosticsEngine &) -> Optional<T> { 209 if (Args.hasArg(Opt)) 210 return Value; 211 return None; 212 }; 213 } 214 215 template <typename T, 216 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 217 static auto makeFlagToValueNormalizer(T Value) { 218 return makeFlagToValueNormalizer(uint64_t(Value)); 219 } 220 221 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 222 OptSpecifier OtherOpt) { 223 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 224 const ArgList &Args, 225 DiagnosticsEngine &) -> Optional<bool> { 226 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 227 return A->getOption().matches(Opt) ? Value : OtherValue; 228 } 229 return None; 230 }; 231 } 232 233 static auto makeBooleanOptionDenormalizer(bool Value) { 234 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 235 CompilerInvocation::StringAllocator, Option::OptionClass, 236 unsigned, bool KeyPath) { 237 if (KeyPath == Value) 238 Args.push_back(Spelling); 239 }; 240 } 241 242 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 243 const char *Spelling, 244 CompilerInvocation::StringAllocator SA, 245 Option::OptionClass OptClass, unsigned, 246 const Twine &Value) { 247 switch (OptClass) { 248 case Option::SeparateClass: 249 case Option::JoinedOrSeparateClass: 250 case Option::JoinedAndSeparateClass: 251 Args.push_back(Spelling); 252 Args.push_back(SA(Value)); 253 break; 254 case Option::JoinedClass: 255 case Option::CommaJoinedClass: 256 Args.push_back(SA(Twine(Spelling) + Value)); 257 break; 258 default: 259 llvm_unreachable("Cannot denormalize an option with option class " 260 "incompatible with string denormalization."); 261 } 262 } 263 264 template <typename T> 265 static void 266 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 267 CompilerInvocation::StringAllocator SA, 268 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 269 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 270 } 271 272 static Optional<SimpleEnumValue> 273 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 274 for (int I = 0, E = Table.Size; I != E; ++I) 275 if (Name == Table.Table[I].Name) 276 return Table.Table[I]; 277 278 return None; 279 } 280 281 static Optional<SimpleEnumValue> 282 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 283 for (int I = 0, E = Table.Size; I != E; ++I) 284 if (Value == Table.Table[I].Value) 285 return Table.Table[I]; 286 287 return None; 288 } 289 290 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 291 unsigned TableIndex, 292 const ArgList &Args, 293 DiagnosticsEngine &Diags) { 294 assert(TableIndex < SimpleEnumValueTablesSize); 295 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 296 297 auto *Arg = Args.getLastArg(Opt); 298 if (!Arg) 299 return None; 300 301 StringRef ArgValue = Arg->getValue(); 302 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 303 return MaybeEnumVal->Value; 304 305 Diags.Report(diag::err_drv_invalid_value) 306 << Arg->getAsString(Args) << ArgValue; 307 return None; 308 } 309 310 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 311 const char *Spelling, 312 CompilerInvocation::StringAllocator SA, 313 Option::OptionClass OptClass, 314 unsigned TableIndex, unsigned Value) { 315 assert(TableIndex < SimpleEnumValueTablesSize); 316 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 317 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 318 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 319 MaybeEnumVal->Name); 320 } else { 321 llvm_unreachable("The simple enum value was not correctly defined in " 322 "the tablegen option description"); 323 } 324 } 325 326 template <typename T> 327 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 328 const char *Spelling, 329 CompilerInvocation::StringAllocator SA, 330 Option::OptionClass OptClass, 331 unsigned TableIndex, T Value) { 332 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 333 static_cast<unsigned>(Value)); 334 } 335 336 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 337 const ArgList &Args, 338 DiagnosticsEngine &Diags) { 339 auto *Arg = Args.getLastArg(Opt); 340 if (!Arg) 341 return None; 342 return std::string(Arg->getValue()); 343 } 344 345 template <typename IntTy> 346 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 347 const ArgList &Args, 348 DiagnosticsEngine &Diags) { 349 auto *Arg = Args.getLastArg(Opt); 350 if (!Arg) 351 return None; 352 IntTy Res; 353 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 354 Diags.Report(diag::err_drv_invalid_int_value) 355 << Arg->getAsString(Args) << Arg->getValue(); 356 return None; 357 } 358 return Res; 359 } 360 361 static Optional<std::vector<std::string>> 362 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 363 DiagnosticsEngine &) { 364 return Args.getAllArgValues(Opt); 365 } 366 367 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 368 const char *Spelling, 369 CompilerInvocation::StringAllocator SA, 370 Option::OptionClass OptClass, 371 unsigned TableIndex, 372 const std::vector<std::string> &Values) { 373 switch (OptClass) { 374 case Option::CommaJoinedClass: { 375 std::string CommaJoinedValue; 376 if (!Values.empty()) { 377 CommaJoinedValue.append(Values.front()); 378 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 379 CommaJoinedValue.append(","); 380 CommaJoinedValue.append(Value); 381 } 382 } 383 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 384 TableIndex, CommaJoinedValue); 385 break; 386 } 387 case Option::JoinedClass: 388 case Option::SeparateClass: 389 case Option::JoinedOrSeparateClass: 390 for (const std::string &Value : Values) 391 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 392 break; 393 default: 394 llvm_unreachable("Cannot denormalize an option with option class " 395 "incompatible with string vector denormalization."); 396 } 397 } 398 399 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 400 const ArgList &Args, 401 DiagnosticsEngine &Diags) { 402 auto *Arg = Args.getLastArg(Opt); 403 if (!Arg) 404 return None; 405 return llvm::Triple::normalize(Arg->getValue()); 406 } 407 408 template <typename T, typename U> 409 static T mergeForwardValue(T KeyPath, U Value) { 410 return static_cast<T>(Value); 411 } 412 413 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 414 return KeyPath | Value; 415 } 416 417 template <typename T> static T extractForwardValue(T KeyPath) { 418 return KeyPath; 419 } 420 421 template <typename T, typename U, U Value> 422 static T extractMaskValue(T KeyPath) { 423 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 424 } 425 426 #define PARSE_OPTION_WITH_MARSHALLING( \ 427 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 428 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 429 if ((FLAGS)&options::CC1Option) { \ 430 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 431 if (IMPLIED_CHECK) \ 432 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 433 if (SHOULD_PARSE) \ 434 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 435 KEYPATH = \ 436 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 437 } 438 439 // Capture the extracted value as a lambda argument to avoid potential issues 440 // with lifetime extension of the reference. 441 #define GENERATE_OPTION_WITH_MARSHALLING( \ 442 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 443 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 444 TABLE_INDEX) \ 445 if ((FLAGS)&options::CC1Option) { \ 446 [&](const auto &Extracted) { \ 447 if (ALWAYS_EMIT || \ 448 (Extracted != \ 449 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 450 : (DEFAULT_VALUE)))) \ 451 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 452 TABLE_INDEX, Extracted); \ 453 }(EXTRACTOR(KEYPATH)); \ 454 } 455 456 static StringRef GetInputKindName(InputKind IK); 457 458 static bool FixupInvocation(CompilerInvocation &Invocation, 459 DiagnosticsEngine &Diags, const ArgList &Args, 460 InputKind IK) { 461 unsigned NumErrorsBefore = Diags.getNumErrors(); 462 463 LangOptions &LangOpts = *Invocation.getLangOpts(); 464 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 465 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 466 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 467 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 468 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 469 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 470 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 471 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 472 if (FrontendOpts.ShowStats) 473 CodeGenOpts.ClearASTBeforeBackend = false; 474 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 475 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 476 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 477 LangOpts.CurrentModule = LangOpts.ModuleName; 478 479 llvm::Triple T(TargetOpts.Triple); 480 llvm::Triple::ArchType Arch = T.getArch(); 481 482 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 483 484 if (LangOpts.getExceptionHandling() != 485 LangOptions::ExceptionHandlingKind::None && 486 T.isWindowsMSVCEnvironment()) 487 Diags.Report(diag::err_fe_invalid_exception_model) 488 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 489 490 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 491 Diags.Report(diag::warn_c_kext); 492 493 if (Args.hasArg(OPT_fconcepts_ts)) 494 Diags.Report(diag::warn_fe_concepts_ts_flag); 495 496 if (LangOpts.NewAlignOverride && 497 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 498 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 499 Diags.Report(diag::err_fe_invalid_alignment) 500 << A->getAsString(Args) << A->getValue(); 501 LangOpts.NewAlignOverride = 0; 502 } 503 504 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 505 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 506 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 507 << "-fsycl-is-host"; 508 509 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 510 Diags.Report(diag::err_drv_argument_not_allowed_with) 511 << "-fgnu89-inline" << GetInputKindName(IK); 512 513 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 514 Diags.Report(diag::err_drv_argument_not_allowed_with) 515 << "-hlsl-entry" << GetInputKindName(IK); 516 517 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 518 Diags.Report(diag::warn_ignored_hip_only_option) 519 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 520 521 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 522 Diags.Report(diag::warn_ignored_hip_only_option) 523 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 524 525 // When these options are used, the compiler is allowed to apply 526 // optimizations that may affect the final result. For example 527 // (x+y)+z is transformed to x+(y+z) but may not give the same 528 // final result; it's not value safe. 529 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 530 // or NaN. Final result may then differ. An error is issued when the eval 531 // method is set with one of these options. 532 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 533 if (LangOpts.ApproxFunc) 534 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 535 if (LangOpts.AllowFPReassoc) 536 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 537 if (LangOpts.AllowRecip) 538 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 539 } 540 541 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 542 // This option should be deprecated for CL > 1.0 because 543 // this option was added for compatibility with OpenCL 1.0. 544 if (Args.getLastArg(OPT_cl_strict_aliasing) && 545 (LangOpts.getOpenCLCompatibleVersion() > 100)) 546 Diags.Report(diag::warn_option_invalid_ocl_version) 547 << LangOpts.getOpenCLVersionString() 548 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 549 550 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 551 auto DefaultCC = LangOpts.getDefaultCallingConv(); 552 553 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 554 DefaultCC == LangOptions::DCC_StdCall) && 555 Arch != llvm::Triple::x86; 556 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 557 DefaultCC == LangOptions::DCC_RegCall) && 558 !T.isX86(); 559 if (emitError) 560 Diags.Report(diag::err_drv_argument_not_allowed_with) 561 << A->getSpelling() << T.getTriple(); 562 } 563 564 return Diags.getNumErrors() == NumErrorsBefore; 565 } 566 567 //===----------------------------------------------------------------------===// 568 // Deserialization (from args) 569 //===----------------------------------------------------------------------===// 570 571 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 572 DiagnosticsEngine &Diags) { 573 unsigned DefaultOpt = llvm::CodeGenOpt::None; 574 if ((IK.getLanguage() == Language::OpenCL || 575 IK.getLanguage() == Language::OpenCLCXX) && 576 !Args.hasArg(OPT_cl_opt_disable)) 577 DefaultOpt = llvm::CodeGenOpt::Default; 578 579 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 580 if (A->getOption().matches(options::OPT_O0)) 581 return llvm::CodeGenOpt::None; 582 583 if (A->getOption().matches(options::OPT_Ofast)) 584 return llvm::CodeGenOpt::Aggressive; 585 586 assert(A->getOption().matches(options::OPT_O)); 587 588 StringRef S(A->getValue()); 589 if (S == "s" || S == "z") 590 return llvm::CodeGenOpt::Default; 591 592 if (S == "g") 593 return llvm::CodeGenOpt::Less; 594 595 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 596 } 597 598 return DefaultOpt; 599 } 600 601 static unsigned getOptimizationLevelSize(ArgList &Args) { 602 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 603 if (A->getOption().matches(options::OPT_O)) { 604 switch (A->getValue()[0]) { 605 default: 606 return 0; 607 case 's': 608 return 1; 609 case 'z': 610 return 2; 611 } 612 } 613 } 614 return 0; 615 } 616 617 static void GenerateArg(SmallVectorImpl<const char *> &Args, 618 llvm::opt::OptSpecifier OptSpecifier, 619 CompilerInvocation::StringAllocator SA) { 620 Option Opt = getDriverOptTable().getOption(OptSpecifier); 621 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 622 Option::OptionClass::FlagClass, 0); 623 } 624 625 static void GenerateArg(SmallVectorImpl<const char *> &Args, 626 llvm::opt::OptSpecifier OptSpecifier, 627 const Twine &Value, 628 CompilerInvocation::StringAllocator SA) { 629 Option Opt = getDriverOptTable().getOption(OptSpecifier); 630 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 631 Opt.getKind(), 0, Value); 632 } 633 634 // Parse command line arguments into CompilerInvocation. 635 using ParseFn = 636 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 637 DiagnosticsEngine &, const char *)>; 638 639 // Generate command line arguments from CompilerInvocation. 640 using GenerateFn = llvm::function_ref<void( 641 CompilerInvocation &, SmallVectorImpl<const char *> &, 642 CompilerInvocation::StringAllocator)>; 643 644 // May perform round-trip of command line arguments. By default, the round-trip 645 // is enabled in assert builds. This can be overwritten at run-time via the 646 // "-round-trip-args" and "-no-round-trip-args" command line flags. 647 // During round-trip, the command line arguments are parsed into a dummy 648 // instance of CompilerInvocation which is used to generate the command line 649 // arguments again. The real CompilerInvocation instance is then created by 650 // parsing the generated arguments, not the original ones. 651 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 652 CompilerInvocation &RealInvocation, 653 CompilerInvocation &DummyInvocation, 654 ArrayRef<const char *> CommandLineArgs, 655 DiagnosticsEngine &Diags, const char *Argv0) { 656 #ifndef NDEBUG 657 bool DoRoundTripDefault = true; 658 #else 659 bool DoRoundTripDefault = false; 660 #endif 661 662 bool DoRoundTrip = DoRoundTripDefault; 663 for (const auto *Arg : CommandLineArgs) { 664 if (Arg == StringRef("-round-trip-args")) 665 DoRoundTrip = true; 666 if (Arg == StringRef("-no-round-trip-args")) 667 DoRoundTrip = false; 668 } 669 670 // If round-trip was not requested, simply run the parser with the real 671 // invocation diagnostics. 672 if (!DoRoundTrip) 673 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 674 675 // Serializes quoted (and potentially escaped) arguments. 676 auto SerializeArgs = [](ArrayRef<const char *> Args) { 677 std::string Buffer; 678 llvm::raw_string_ostream OS(Buffer); 679 for (const char *Arg : Args) { 680 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 681 OS << ' '; 682 } 683 OS.flush(); 684 return Buffer; 685 }; 686 687 // Setup a dummy DiagnosticsEngine. 688 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 689 DummyDiags.setClient(new TextDiagnosticBuffer()); 690 691 // Run the first parse on the original arguments with the dummy invocation and 692 // diagnostics. 693 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 694 DummyDiags.getNumWarnings() != 0) { 695 // If the first parse did not succeed, it must be user mistake (invalid 696 // command line arguments). We won't be able to generate arguments that 697 // would reproduce the same result. Let's fail again with the real 698 // invocation and diagnostics, so all side-effects of parsing are visible. 699 unsigned NumWarningsBefore = Diags.getNumWarnings(); 700 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 701 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 702 return Success; 703 704 // Parse with original options and diagnostics succeeded even though it 705 // shouldn't have. Something is off. 706 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 707 Diags.Report(diag::note_cc1_round_trip_original) 708 << SerializeArgs(CommandLineArgs); 709 return false; 710 } 711 712 // Setup string allocator. 713 llvm::BumpPtrAllocator Alloc; 714 llvm::StringSaver StringPool(Alloc); 715 auto SA = [&StringPool](const Twine &Arg) { 716 return StringPool.save(Arg).data(); 717 }; 718 719 // Generate arguments from the dummy invocation. If Generate is the 720 // inverse of Parse, the newly generated arguments must have the same 721 // semantics as the original. 722 SmallVector<const char *> GeneratedArgs1; 723 Generate(DummyInvocation, GeneratedArgs1, SA); 724 725 // Run the second parse, now on the generated arguments, and with the real 726 // invocation and diagnostics. The result is what we will end up using for the 727 // rest of compilation, so if Generate is not inverse of Parse, something down 728 // the line will break. 729 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 730 731 // The first parse on original arguments succeeded, but second parse of 732 // generated arguments failed. Something must be wrong with the generator. 733 if (!Success2) { 734 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 735 Diags.Report(diag::note_cc1_round_trip_generated) 736 << 1 << SerializeArgs(GeneratedArgs1); 737 return false; 738 } 739 740 // Generate arguments again, this time from the options we will end up using 741 // for the rest of the compilation. 742 SmallVector<const char *> GeneratedArgs2; 743 Generate(RealInvocation, GeneratedArgs2, SA); 744 745 // Compares two lists of generated arguments. 746 auto Equal = [](const ArrayRef<const char *> A, 747 const ArrayRef<const char *> B) { 748 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 749 [](const char *AElem, const char *BElem) { 750 return StringRef(AElem) == StringRef(BElem); 751 }); 752 }; 753 754 // If we generated different arguments from what we assume are two 755 // semantically equivalent CompilerInvocations, the Generate function may 756 // be non-deterministic. 757 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 758 Diags.Report(diag::err_cc1_round_trip_mismatch); 759 Diags.Report(diag::note_cc1_round_trip_generated) 760 << 1 << SerializeArgs(GeneratedArgs1); 761 Diags.Report(diag::note_cc1_round_trip_generated) 762 << 2 << SerializeArgs(GeneratedArgs2); 763 return false; 764 } 765 766 Diags.Report(diag::remark_cc1_round_trip_generated) 767 << 1 << SerializeArgs(GeneratedArgs1); 768 Diags.Report(diag::remark_cc1_round_trip_generated) 769 << 2 << SerializeArgs(GeneratedArgs2); 770 771 return Success2; 772 } 773 774 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 775 OptSpecifier GroupWithValue, 776 std::vector<std::string> &Diagnostics) { 777 for (auto *A : Args.filtered(Group)) { 778 if (A->getOption().getKind() == Option::FlagClass) { 779 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 780 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 781 Diagnostics.push_back( 782 std::string(A->getOption().getName().drop_front(1))); 783 } else if (A->getOption().matches(GroupWithValue)) { 784 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 785 // group. Add only the group name to the diagnostics. 786 Diagnostics.push_back( 787 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 788 } else { 789 // Otherwise, add its value (for OPT_W_Joined and similar). 790 Diagnostics.push_back(A->getValue()); 791 } 792 } 793 } 794 795 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 796 // it won't verify the input. 797 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 798 DiagnosticsEngine *Diags); 799 800 static void getAllNoBuiltinFuncValues(ArgList &Args, 801 std::vector<std::string> &Funcs) { 802 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 803 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 804 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 805 } 806 807 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 808 SmallVectorImpl<const char *> &Args, 809 CompilerInvocation::StringAllocator SA) { 810 const AnalyzerOptions *AnalyzerOpts = &Opts; 811 812 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 813 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 814 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 815 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 816 MERGER, EXTRACTOR, TABLE_INDEX) \ 817 GENERATE_OPTION_WITH_MARSHALLING( \ 818 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 819 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 820 #include "clang/Driver/Options.inc" 821 #undef ANALYZER_OPTION_WITH_MARSHALLING 822 823 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 824 switch (Opts.AnalysisConstraintsOpt) { 825 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 826 case NAME##Model: \ 827 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 828 break; 829 #include "clang/StaticAnalyzer/Core/Analyses.def" 830 default: 831 llvm_unreachable("Tried to generate unknown analysis constraint."); 832 } 833 } 834 835 if (Opts.AnalysisDiagOpt != PD_HTML) { 836 switch (Opts.AnalysisDiagOpt) { 837 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 838 case PD_##NAME: \ 839 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 840 break; 841 #include "clang/StaticAnalyzer/Core/Analyses.def" 842 default: 843 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 844 } 845 } 846 847 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 848 switch (Opts.AnalysisPurgeOpt) { 849 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 850 case NAME: \ 851 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 852 break; 853 #include "clang/StaticAnalyzer/Core/Analyses.def" 854 default: 855 llvm_unreachable("Tried to generate unknown analysis purge mode."); 856 } 857 } 858 859 if (Opts.InliningMode != NoRedundancy) { 860 switch (Opts.InliningMode) { 861 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 862 case NAME: \ 863 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 864 break; 865 #include "clang/StaticAnalyzer/Core/Analyses.def" 866 default: 867 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 868 } 869 } 870 871 for (const auto &CP : Opts.CheckersAndPackages) { 872 OptSpecifier Opt = 873 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 874 GenerateArg(Args, Opt, CP.first, SA); 875 } 876 877 AnalyzerOptions ConfigOpts; 878 parseAnalyzerConfigs(ConfigOpts, nullptr); 879 880 for (const auto &C : Opts.Config) { 881 // Don't generate anything that came from parseAnalyzerConfigs. It would be 882 // redundant and may not be valid on the command line. 883 auto Entry = ConfigOpts.Config.find(C.getKey()); 884 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 885 continue; 886 887 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 888 } 889 890 // Nothing to generate for FullCompilerInvocation. 891 } 892 893 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 894 DiagnosticsEngine &Diags) { 895 unsigned NumErrorsBefore = Diags.getNumErrors(); 896 897 AnalyzerOptions *AnalyzerOpts = &Opts; 898 899 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 900 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 901 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 902 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 903 MERGER, EXTRACTOR, TABLE_INDEX) \ 904 PARSE_OPTION_WITH_MARSHALLING( \ 905 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 906 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 907 #include "clang/Driver/Options.inc" 908 #undef ANALYZER_OPTION_WITH_MARSHALLING 909 910 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 911 StringRef Name = A->getValue(); 912 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 913 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 914 .Case(CMDFLAG, NAME##Model) 915 #include "clang/StaticAnalyzer/Core/Analyses.def" 916 .Default(NumConstraints); 917 if (Value == NumConstraints) { 918 Diags.Report(diag::err_drv_invalid_value) 919 << A->getAsString(Args) << Name; 920 } else { 921 #ifndef LLVM_WITH_Z3 922 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 923 Diags.Report(diag::err_analyzer_not_built_with_z3); 924 } 925 #endif // LLVM_WITH_Z3 926 Opts.AnalysisConstraintsOpt = Value; 927 } 928 } 929 930 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 931 StringRef Name = A->getValue(); 932 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 933 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 934 .Case(CMDFLAG, PD_##NAME) 935 #include "clang/StaticAnalyzer/Core/Analyses.def" 936 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 937 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 938 Diags.Report(diag::err_drv_invalid_value) 939 << A->getAsString(Args) << Name; 940 } else { 941 Opts.AnalysisDiagOpt = Value; 942 } 943 } 944 945 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 946 StringRef Name = A->getValue(); 947 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 948 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 949 .Case(CMDFLAG, NAME) 950 #include "clang/StaticAnalyzer/Core/Analyses.def" 951 .Default(NumPurgeModes); 952 if (Value == NumPurgeModes) { 953 Diags.Report(diag::err_drv_invalid_value) 954 << A->getAsString(Args) << Name; 955 } else { 956 Opts.AnalysisPurgeOpt = Value; 957 } 958 } 959 960 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 961 StringRef Name = A->getValue(); 962 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 963 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 964 .Case(CMDFLAG, NAME) 965 #include "clang/StaticAnalyzer/Core/Analyses.def" 966 .Default(NumInliningModes); 967 if (Value == NumInliningModes) { 968 Diags.Report(diag::err_drv_invalid_value) 969 << A->getAsString(Args) << Name; 970 } else { 971 Opts.InliningMode = Value; 972 } 973 } 974 975 Opts.CheckersAndPackages.clear(); 976 for (const Arg *A : 977 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 978 A->claim(); 979 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 980 // We can have a list of comma separated checker names, e.g: 981 // '-analyzer-checker=cocoa,unix' 982 StringRef CheckerAndPackageList = A->getValue(); 983 SmallVector<StringRef, 16> CheckersAndPackages; 984 CheckerAndPackageList.split(CheckersAndPackages, ","); 985 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 986 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 987 IsEnabled); 988 } 989 990 // Go through the analyzer configuration options. 991 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 992 993 // We can have a list of comma separated config names, e.g: 994 // '-analyzer-config key1=val1,key2=val2' 995 StringRef configList = A->getValue(); 996 SmallVector<StringRef, 4> configVals; 997 configList.split(configVals, ","); 998 for (const auto &configVal : configVals) { 999 StringRef key, val; 1000 std::tie(key, val) = configVal.split("="); 1001 if (val.empty()) { 1002 Diags.Report(SourceLocation(), 1003 diag::err_analyzer_config_no_value) << configVal; 1004 break; 1005 } 1006 if (val.contains('=')) { 1007 Diags.Report(SourceLocation(), 1008 diag::err_analyzer_config_multiple_values) 1009 << configVal; 1010 break; 1011 } 1012 1013 // TODO: Check checker options too, possibly in CheckerRegistry. 1014 // Leave unknown non-checker configs unclaimed. 1015 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1016 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1017 Diags.Report(diag::err_analyzer_config_unknown) << key; 1018 continue; 1019 } 1020 1021 A->claim(); 1022 Opts.Config[key] = std::string(val); 1023 } 1024 } 1025 1026 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1027 parseAnalyzerConfigs(Opts, &Diags); 1028 else 1029 parseAnalyzerConfigs(Opts, nullptr); 1030 1031 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1032 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1033 if (i != 0) 1034 os << " "; 1035 os << Args.getArgString(i); 1036 } 1037 os.flush(); 1038 1039 return Diags.getNumErrors() == NumErrorsBefore; 1040 } 1041 1042 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1043 StringRef OptionName, StringRef DefaultVal) { 1044 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1045 } 1046 1047 static void initOption(AnalyzerOptions::ConfigTable &Config, 1048 DiagnosticsEngine *Diags, 1049 StringRef &OptionField, StringRef Name, 1050 StringRef DefaultVal) { 1051 // String options may be known to invalid (e.g. if the expected string is a 1052 // file name, but the file does not exist), those will have to be checked in 1053 // parseConfigs. 1054 OptionField = getStringOption(Config, Name, DefaultVal); 1055 } 1056 1057 static void initOption(AnalyzerOptions::ConfigTable &Config, 1058 DiagnosticsEngine *Diags, 1059 bool &OptionField, StringRef Name, bool DefaultVal) { 1060 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1061 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1062 .Case("true", true) 1063 .Case("false", false) 1064 .Default(None); 1065 1066 if (!PossiblyInvalidVal) { 1067 if (Diags) 1068 Diags->Report(diag::err_analyzer_config_invalid_input) 1069 << Name << "a boolean"; 1070 else 1071 OptionField = DefaultVal; 1072 } else 1073 OptionField = *PossiblyInvalidVal; 1074 } 1075 1076 static void initOption(AnalyzerOptions::ConfigTable &Config, 1077 DiagnosticsEngine *Diags, 1078 unsigned &OptionField, StringRef Name, 1079 unsigned DefaultVal) { 1080 1081 OptionField = DefaultVal; 1082 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1083 .getAsInteger(0, OptionField); 1084 if (Diags && HasFailed) 1085 Diags->Report(diag::err_analyzer_config_invalid_input) 1086 << Name << "an unsigned"; 1087 } 1088 1089 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1090 DiagnosticsEngine *Diags) { 1091 // TODO: There's no need to store the entire configtable, it'd be plenty 1092 // enough to store checker options. 1093 1094 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1095 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1096 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1097 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1098 1099 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1100 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1101 1102 #define ANALYZER_OPTION(...) 1103 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1104 SHALLOW_VAL, DEEP_VAL) \ 1105 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1106 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1107 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1108 1109 // At this point, AnalyzerOptions is configured. Let's validate some options. 1110 1111 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1112 // The current approach only validates the registered checkers which does not 1113 // contain the runtime enabled checkers and optimally we would validate both. 1114 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1115 std::vector<StringRef> Checkers = 1116 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1117 std::vector<StringRef> Packages = 1118 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1119 1120 SmallVector<StringRef, 16> CheckersAndPackages; 1121 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1122 1123 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1124 if (Diags) { 1125 bool IsChecker = CheckerOrPackage.contains('.'); 1126 bool IsValidName = IsChecker 1127 ? llvm::is_contained(Checkers, CheckerOrPackage) 1128 : llvm::is_contained(Packages, CheckerOrPackage); 1129 1130 if (!IsValidName) 1131 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1132 << CheckerOrPackage; 1133 } 1134 1135 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1136 } 1137 } 1138 1139 if (!Diags) 1140 return; 1141 1142 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1143 Diags->Report(diag::err_analyzer_config_invalid_input) 1144 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1145 1146 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1147 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1148 << "a filename"; 1149 1150 if (!AnOpts.ModelPath.empty() && 1151 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1152 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1153 << "a filename"; 1154 } 1155 1156 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1157 static void 1158 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1159 CompilerInvocation::StringAllocator SA, 1160 OptSpecifier OptEQ, StringRef Name, 1161 const CodeGenOptions::OptRemark &Remark) { 1162 if (Remark.hasValidPattern()) { 1163 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1164 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1165 GenerateArg(Args, OPT_R_Joined, Name, SA); 1166 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1167 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1168 } 1169 } 1170 1171 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1172 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1173 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1174 static CodeGenOptions::OptRemark 1175 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1176 OptSpecifier OptEQ, StringRef Name) { 1177 CodeGenOptions::OptRemark Result; 1178 1179 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1180 StringRef Pattern) { 1181 Result.Pattern = Pattern.str(); 1182 1183 std::string RegexError; 1184 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1185 if (!Result.Regex->isValid(RegexError)) { 1186 Diags.Report(diag::err_drv_optimization_remark_pattern) 1187 << RegexError << A->getAsString(Args); 1188 return false; 1189 } 1190 1191 return true; 1192 }; 1193 1194 for (Arg *A : Args) { 1195 if (A->getOption().matches(OPT_R_Joined)) { 1196 StringRef Value = A->getValue(); 1197 1198 if (Value == Name) 1199 Result.Kind = CodeGenOptions::RK_Enabled; 1200 else if (Value == "everything") 1201 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1202 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1203 Result.Kind = CodeGenOptions::RK_Disabled; 1204 else if (Value == "no-everything") 1205 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1206 else 1207 continue; 1208 1209 if (Result.Kind == CodeGenOptions::RK_Disabled || 1210 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1211 Result.Pattern = ""; 1212 Result.Regex = nullptr; 1213 } else { 1214 InitializeResultPattern(A, ".*"); 1215 } 1216 } else if (A->getOption().matches(OptEQ)) { 1217 Result.Kind = CodeGenOptions::RK_WithPattern; 1218 if (!InitializeResultPattern(A, A->getValue())) 1219 return CodeGenOptions::OptRemark(); 1220 } 1221 } 1222 1223 return Result; 1224 } 1225 1226 static bool parseDiagnosticLevelMask(StringRef FlagName, 1227 const std::vector<std::string> &Levels, 1228 DiagnosticsEngine &Diags, 1229 DiagnosticLevelMask &M) { 1230 bool Success = true; 1231 for (const auto &Level : Levels) { 1232 DiagnosticLevelMask const PM = 1233 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1234 .Case("note", DiagnosticLevelMask::Note) 1235 .Case("remark", DiagnosticLevelMask::Remark) 1236 .Case("warning", DiagnosticLevelMask::Warning) 1237 .Case("error", DiagnosticLevelMask::Error) 1238 .Default(DiagnosticLevelMask::None); 1239 if (PM == DiagnosticLevelMask::None) { 1240 Success = false; 1241 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1242 } 1243 M = M | PM; 1244 } 1245 return Success; 1246 } 1247 1248 static void parseSanitizerKinds(StringRef FlagName, 1249 const std::vector<std::string> &Sanitizers, 1250 DiagnosticsEngine &Diags, SanitizerSet &S) { 1251 for (const auto &Sanitizer : Sanitizers) { 1252 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1253 if (K == SanitizerMask()) 1254 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1255 else 1256 S.set(K, true); 1257 } 1258 } 1259 1260 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1261 SmallVector<StringRef, 4> Values; 1262 serializeSanitizerSet(S, Values); 1263 return Values; 1264 } 1265 1266 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1267 ArgList &Args, DiagnosticsEngine &D, 1268 XRayInstrSet &S) { 1269 llvm::SmallVector<StringRef, 2> BundleParts; 1270 llvm::SplitString(Bundle, BundleParts, ","); 1271 for (const auto &B : BundleParts) { 1272 auto Mask = parseXRayInstrValue(B); 1273 if (Mask == XRayInstrKind::None) 1274 if (B != "none") 1275 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1276 else 1277 S.Mask = Mask; 1278 else if (Mask == XRayInstrKind::All) 1279 S.Mask = Mask; 1280 else 1281 S.set(Mask, true); 1282 } 1283 } 1284 1285 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1286 llvm::SmallVector<StringRef, 2> BundleParts; 1287 serializeXRayInstrValue(S, BundleParts); 1288 std::string Buffer; 1289 llvm::raw_string_ostream OS(Buffer); 1290 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1291 return Buffer; 1292 } 1293 1294 // Set the profile kind using fprofile-instrument-use-path. 1295 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1296 const Twine &ProfileName) { 1297 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1298 // In error, return silently and let Clang PGOUse report the error message. 1299 if (auto E = ReaderOrErr.takeError()) { 1300 llvm::consumeError(std::move(E)); 1301 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1302 return; 1303 } 1304 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1305 std::move(ReaderOrErr.get()); 1306 if (PGOReader->isIRLevelProfile()) { 1307 if (PGOReader->hasCSIRLevelProfile()) 1308 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1309 else 1310 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1311 } else 1312 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1313 } 1314 1315 void CompilerInvocation::GenerateCodeGenArgs( 1316 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1317 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1318 const LangOptions *LangOpts) { 1319 const CodeGenOptions &CodeGenOpts = Opts; 1320 1321 if (Opts.OptimizationLevel == 0) 1322 GenerateArg(Args, OPT_O0, SA); 1323 else 1324 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1325 1326 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1327 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1328 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1329 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1330 MERGER, EXTRACTOR, TABLE_INDEX) \ 1331 GENERATE_OPTION_WITH_MARSHALLING( \ 1332 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1333 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1334 #include "clang/Driver/Options.inc" 1335 #undef CODEGEN_OPTION_WITH_MARSHALLING 1336 1337 if (Opts.OptimizationLevel > 0) { 1338 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1339 GenerateArg(Args, OPT_finline_functions, SA); 1340 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1341 GenerateArg(Args, OPT_finline_hint_functions, SA); 1342 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1343 GenerateArg(Args, OPT_fno_inline, SA); 1344 } 1345 1346 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1347 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1348 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1349 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1350 1351 Optional<StringRef> DebugInfoVal; 1352 switch (Opts.DebugInfo) { 1353 case codegenoptions::DebugLineTablesOnly: 1354 DebugInfoVal = "line-tables-only"; 1355 break; 1356 case codegenoptions::DebugDirectivesOnly: 1357 DebugInfoVal = "line-directives-only"; 1358 break; 1359 case codegenoptions::DebugInfoConstructor: 1360 DebugInfoVal = "constructor"; 1361 break; 1362 case codegenoptions::LimitedDebugInfo: 1363 DebugInfoVal = "limited"; 1364 break; 1365 case codegenoptions::FullDebugInfo: 1366 DebugInfoVal = "standalone"; 1367 break; 1368 case codegenoptions::UnusedTypeInfo: 1369 DebugInfoVal = "unused-types"; 1370 break; 1371 case codegenoptions::NoDebugInfo: // default value 1372 DebugInfoVal = None; 1373 break; 1374 case codegenoptions::LocTrackingOnly: // implied value 1375 DebugInfoVal = None; 1376 break; 1377 } 1378 if (DebugInfoVal) 1379 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1380 1381 for (const auto &Prefix : Opts.DebugPrefixMap) 1382 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1383 Prefix.first + "=" + Prefix.second, SA); 1384 1385 for (const auto &Prefix : Opts.CoveragePrefixMap) 1386 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1387 Prefix.first + "=" + Prefix.second, SA); 1388 1389 if (Opts.NewStructPathTBAA) 1390 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1391 1392 if (Opts.OptimizeSize == 1) 1393 GenerateArg(Args, OPT_O, "s", SA); 1394 else if (Opts.OptimizeSize == 2) 1395 GenerateArg(Args, OPT_O, "z", SA); 1396 1397 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1398 // -ffreestanding. We'll consider that when generating them. 1399 1400 // NoBuiltinFuncs are generated by LangOptions. 1401 1402 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1403 GenerateArg(Args, OPT_funroll_loops, SA); 1404 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1405 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1406 1407 if (!Opts.BinutilsVersion.empty()) 1408 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1409 1410 if (Opts.DebugNameTable == 1411 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1412 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1413 else if (Opts.DebugNameTable == 1414 static_cast<unsigned>( 1415 llvm::DICompileUnit::DebugNameTableKind::Default)) 1416 GenerateArg(Args, OPT_gpubnames, SA); 1417 1418 auto TNK = Opts.getDebugSimpleTemplateNames(); 1419 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1420 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1421 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1422 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1423 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1424 } 1425 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1426 // it or PGOUseInstrumentor. 1427 1428 if (Opts.TimePasses) { 1429 if (Opts.TimePassesPerRun) 1430 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1431 else 1432 GenerateArg(Args, OPT_ftime_report, SA); 1433 } 1434 1435 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1436 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1437 1438 if (Opts.PrepareForThinLTO) 1439 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1440 1441 if (!Opts.ThinLTOIndexFile.empty()) 1442 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1443 1444 if (Opts.SaveTempsFilePrefix == OutputFile) 1445 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1446 1447 StringRef MemProfileBasename("memprof.profraw"); 1448 if (!Opts.MemoryProfileOutput.empty()) { 1449 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1450 GenerateArg(Args, OPT_fmemory_profile, SA); 1451 } else { 1452 size_t ArgLength = 1453 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1454 GenerateArg(Args, OPT_fmemory_profile_EQ, 1455 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1456 } 1457 } 1458 1459 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1460 GenerateArg(Args, OPT_coverage_version_EQ, 1461 StringRef(Opts.CoverageVersion, 4), SA); 1462 1463 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1464 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1465 // won't be generated.) 1466 1467 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1468 std::string InstrBundle = 1469 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1470 if (!InstrBundle.empty()) 1471 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1472 } 1473 1474 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1475 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1476 else if (Opts.CFProtectionReturn) 1477 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1478 else if (Opts.CFProtectionBranch) 1479 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1480 1481 if (Opts.IBTSeal) 1482 GenerateArg(Args, OPT_mibt_seal, SA); 1483 1484 if (Opts.FunctionReturnThunks) 1485 GenerateArg(Args, OPT_mfunction_return_EQ, "thunk-extern", SA); 1486 1487 for (const auto &F : Opts.LinkBitcodeFiles) { 1488 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1489 F.PropagateAttrs && F.Internalize; 1490 GenerateArg(Args, 1491 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1492 F.Filename, SA); 1493 } 1494 1495 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1496 // That would make it easy to generate the option only **once** if it was 1497 // explicitly set to non-default value. 1498 if (Opts.ExplicitEmulatedTLS) { 1499 GenerateArg( 1500 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1501 } 1502 1503 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1504 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1505 1506 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1507 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1508 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1509 SA); 1510 1511 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1512 OptSpecifier Opt = 1513 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1514 GenerateArg(Args, Opt, SA); 1515 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1516 OptSpecifier Opt = 1517 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1518 GenerateArg(Args, Opt, SA); 1519 } 1520 1521 if (Opts.EnableAIXExtendedAltivecABI) 1522 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1523 1524 if (!Opts.OptRecordPasses.empty()) 1525 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1526 1527 if (!Opts.OptRecordFormat.empty()) 1528 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1529 1530 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1531 Opts.OptimizationRemark); 1532 1533 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1534 Opts.OptimizationRemarkMissed); 1535 1536 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1537 Opts.OptimizationRemarkAnalysis); 1538 1539 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1540 Opts.DiagnosticsHotnessThreshold 1541 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1542 : "auto", 1543 SA); 1544 1545 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1546 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1547 1548 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1549 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1550 1551 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1552 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1553 1554 if (!Opts.EmitVersionIdentMetadata) 1555 GenerateArg(Args, OPT_Qn, SA); 1556 1557 switch (Opts.FiniteLoops) { 1558 case CodeGenOptions::FiniteLoopsKind::Language: 1559 break; 1560 case CodeGenOptions::FiniteLoopsKind::Always: 1561 GenerateArg(Args, OPT_ffinite_loops, SA); 1562 break; 1563 case CodeGenOptions::FiniteLoopsKind::Never: 1564 GenerateArg(Args, OPT_fno_finite_loops, SA); 1565 break; 1566 } 1567 } 1568 1569 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1570 InputKind IK, 1571 DiagnosticsEngine &Diags, 1572 const llvm::Triple &T, 1573 const std::string &OutputFile, 1574 const LangOptions &LangOptsRef) { 1575 unsigned NumErrorsBefore = Diags.getNumErrors(); 1576 1577 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1578 // TODO: This could be done in Driver 1579 unsigned MaxOptLevel = 3; 1580 if (OptimizationLevel > MaxOptLevel) { 1581 // If the optimization level is not supported, fall back on the default 1582 // optimization 1583 Diags.Report(diag::warn_drv_optimization_value) 1584 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1585 OptimizationLevel = MaxOptLevel; 1586 } 1587 Opts.OptimizationLevel = OptimizationLevel; 1588 1589 // The key paths of codegen options defined in Options.td start with 1590 // "CodeGenOpts.". Let's provide the expected variable name and type. 1591 CodeGenOptions &CodeGenOpts = Opts; 1592 // Some codegen options depend on language options. Let's provide the expected 1593 // variable name and type. 1594 const LangOptions *LangOpts = &LangOptsRef; 1595 1596 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1597 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1598 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1599 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1600 MERGER, EXTRACTOR, TABLE_INDEX) \ 1601 PARSE_OPTION_WITH_MARSHALLING( \ 1602 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1603 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1604 #include "clang/Driver/Options.inc" 1605 #undef CODEGEN_OPTION_WITH_MARSHALLING 1606 1607 // At O0 we want to fully disable inlining outside of cases marked with 1608 // 'alwaysinline' that are required for correctness. 1609 if (Opts.OptimizationLevel == 0) { 1610 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1611 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1612 options::OPT_finline_hint_functions, 1613 options::OPT_fno_inline_functions, 1614 options::OPT_fno_inline)) { 1615 // Explicit inlining flags can disable some or all inlining even at 1616 // optimization levels above zero. 1617 if (A->getOption().matches(options::OPT_finline_functions)) 1618 Opts.setInlining(CodeGenOptions::NormalInlining); 1619 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1620 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1621 else 1622 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1623 } else { 1624 Opts.setInlining(CodeGenOptions::NormalInlining); 1625 } 1626 1627 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1628 // -fdirect-access-external-data. 1629 Opts.DirectAccessExternalData = 1630 Args.hasArg(OPT_fdirect_access_external_data) || 1631 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1632 LangOpts->PICLevel == 0); 1633 1634 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1635 unsigned Val = 1636 llvm::StringSwitch<unsigned>(A->getValue()) 1637 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1638 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1639 .Case("constructor", codegenoptions::DebugInfoConstructor) 1640 .Case("limited", codegenoptions::LimitedDebugInfo) 1641 .Case("standalone", codegenoptions::FullDebugInfo) 1642 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1643 .Default(~0U); 1644 if (Val == ~0U) 1645 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1646 << A->getValue(); 1647 else 1648 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1649 } 1650 1651 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1652 // constructor homing, and vice versa for -fno-use-ctor-homing. 1653 if (const Arg *A = 1654 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1655 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1656 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1657 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1658 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1659 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1660 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1661 } 1662 1663 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1664 auto Split = StringRef(Arg).split('='); 1665 Opts.DebugPrefixMap.insert( 1666 {std::string(Split.first), std::string(Split.second)}); 1667 } 1668 1669 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1670 auto Split = StringRef(Arg).split('='); 1671 Opts.CoveragePrefixMap.insert( 1672 {std::string(Split.first), std::string(Split.second)}); 1673 } 1674 1675 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1676 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1677 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1678 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1679 1680 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1681 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1682 Opts.EmitCallSiteInfo = true; 1683 1684 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1685 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1686 << Opts.DIBugsReportFilePath; 1687 Opts.DIBugsReportFilePath = ""; 1688 } 1689 1690 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1691 Args.hasArg(OPT_new_struct_path_tbaa); 1692 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1693 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1694 if (Opts.SimplifyLibCalls) 1695 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1696 Opts.UnrollLoops = 1697 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1698 (Opts.OptimizationLevel > 1)); 1699 Opts.BinutilsVersion = 1700 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1701 1702 Opts.DebugNameTable = static_cast<unsigned>( 1703 Args.hasArg(OPT_ggnu_pubnames) 1704 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1705 : Args.hasArg(OPT_gpubnames) 1706 ? llvm::DICompileUnit::DebugNameTableKind::Default 1707 : llvm::DICompileUnit::DebugNameTableKind::None); 1708 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1709 StringRef Value = A->getValue(); 1710 if (Value != "simple" && Value != "mangled") 1711 Diags.Report(diag::err_drv_unsupported_option_argument) 1712 << A->getOption().getName() << A->getValue(); 1713 Opts.setDebugSimpleTemplateNames( 1714 StringRef(A->getValue()) == "simple" 1715 ? codegenoptions::DebugTemplateNamesKind::Simple 1716 : codegenoptions::DebugTemplateNamesKind::Mangled); 1717 } 1718 1719 if (!Opts.ProfileInstrumentUsePath.empty()) 1720 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1721 1722 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1723 Opts.TimePasses = true; 1724 1725 // -ftime-report= is only for new pass manager. 1726 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1727 StringRef Val = A->getValue(); 1728 if (Val == "per-pass") 1729 Opts.TimePassesPerRun = false; 1730 else if (Val == "per-pass-run") 1731 Opts.TimePassesPerRun = true; 1732 else 1733 Diags.Report(diag::err_drv_invalid_value) 1734 << A->getAsString(Args) << A->getValue(); 1735 } 1736 } 1737 1738 Opts.PrepareForLTO = false; 1739 Opts.PrepareForThinLTO = false; 1740 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1741 Opts.PrepareForLTO = true; 1742 StringRef S = A->getValue(); 1743 if (S == "thin") 1744 Opts.PrepareForThinLTO = true; 1745 else if (S != "full") 1746 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1747 } 1748 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1749 if (IK.getLanguage() != Language::LLVM_IR) 1750 Diags.Report(diag::err_drv_argument_only_allowed_with) 1751 << A->getAsString(Args) << "-x ir"; 1752 Opts.ThinLTOIndexFile = 1753 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1754 } 1755 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1756 Opts.SaveTempsFilePrefix = 1757 llvm::StringSwitch<std::string>(A->getValue()) 1758 .Case("obj", OutputFile) 1759 .Default(llvm::sys::path::filename(OutputFile).str()); 1760 1761 // The memory profile runtime appends the pid to make this name more unique. 1762 const char *MemProfileBasename = "memprof.profraw"; 1763 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1764 SmallString<128> Path( 1765 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1766 llvm::sys::path::append(Path, MemProfileBasename); 1767 Opts.MemoryProfileOutput = std::string(Path); 1768 } else if (Args.hasArg(OPT_fmemory_profile)) 1769 Opts.MemoryProfileOutput = MemProfileBasename; 1770 1771 memcpy(Opts.CoverageVersion, "408*", 4); 1772 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1773 if (Args.hasArg(OPT_coverage_version_EQ)) { 1774 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1775 if (CoverageVersion.size() != 4) { 1776 Diags.Report(diag::err_drv_invalid_value) 1777 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1778 << CoverageVersion; 1779 } else { 1780 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1781 } 1782 } 1783 } 1784 // FIXME: For backend options that are not yet recorded as function 1785 // attributes in the IR, keep track of them so we can embed them in a 1786 // separate data section and use them when building the bitcode. 1787 for (const auto &A : Args) { 1788 // Do not encode output and input. 1789 if (A->getOption().getID() == options::OPT_o || 1790 A->getOption().getID() == options::OPT_INPUT || 1791 A->getOption().getID() == options::OPT_x || 1792 A->getOption().getID() == options::OPT_fembed_bitcode || 1793 A->getOption().matches(options::OPT_W_Group)) 1794 continue; 1795 ArgStringList ASL; 1796 A->render(Args, ASL); 1797 for (const auto &arg : ASL) { 1798 StringRef ArgStr(arg); 1799 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1800 // using \00 to separate each commandline options. 1801 Opts.CmdArgs.push_back('\0'); 1802 } 1803 } 1804 1805 auto XRayInstrBundles = 1806 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1807 if (XRayInstrBundles.empty()) 1808 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1809 else 1810 for (const auto &A : XRayInstrBundles) 1811 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1812 Diags, Opts.XRayInstrumentationBundle); 1813 1814 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1815 StringRef Name = A->getValue(); 1816 if (Name == "full") { 1817 Opts.CFProtectionReturn = 1; 1818 Opts.CFProtectionBranch = 1; 1819 } else if (Name == "return") 1820 Opts.CFProtectionReturn = 1; 1821 else if (Name == "branch") 1822 Opts.CFProtectionBranch = 1; 1823 else if (Name != "none") 1824 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1825 } 1826 1827 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1828 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1829 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1830 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1831 .Default(llvm::FunctionReturnThunksKind::Invalid); 1832 // SystemZ might want to add support for "expolines." 1833 if (!T.isX86()) 1834 Diags.Report(diag::err_drv_argument_not_allowed_with) 1835 << A->getSpelling() << T.getTriple(); 1836 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1837 Diags.Report(diag::err_drv_invalid_value) 1838 << A->getAsString(Args) << A->getValue(); 1839 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1840 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1841 Diags.Report(diag::err_drv_argument_not_allowed_with) 1842 << A->getAsString(Args) 1843 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1844 else 1845 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1846 } 1847 1848 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1849 Opts.IBTSeal = 1; 1850 1851 for (auto *A : 1852 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1853 CodeGenOptions::BitcodeFileToLink F; 1854 F.Filename = A->getValue(); 1855 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1856 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1857 // When linking CUDA bitcode, propagate function attributes so that 1858 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1859 F.PropagateAttrs = true; 1860 F.Internalize = true; 1861 } 1862 Opts.LinkBitcodeFiles.push_back(F); 1863 } 1864 1865 if (Args.getLastArg(OPT_femulated_tls) || 1866 Args.getLastArg(OPT_fno_emulated_tls)) { 1867 Opts.ExplicitEmulatedTLS = true; 1868 } 1869 1870 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1871 if (T.isOSAIX()) { 1872 StringRef Name = A->getValue(); 1873 if (Name != "global-dynamic") 1874 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1875 } 1876 } 1877 1878 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1879 StringRef Val = A->getValue(); 1880 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1881 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1882 if (!Opts.FPDenormalMode.isValid()) 1883 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1884 } 1885 1886 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1887 StringRef Val = A->getValue(); 1888 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1889 if (!Opts.FP32DenormalMode.isValid()) 1890 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1891 } 1892 1893 // X86_32 has -fppc-struct-return and -freg-struct-return. 1894 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1895 if (Arg *A = 1896 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1897 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1898 // TODO: We might want to consider enabling these options on AIX in the 1899 // future. 1900 if (T.isOSAIX()) 1901 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1902 << A->getSpelling() << T.str(); 1903 1904 const Option &O = A->getOption(); 1905 if (O.matches(OPT_fpcc_struct_return) || 1906 O.matches(OPT_maix_struct_return)) { 1907 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1908 } else { 1909 assert(O.matches(OPT_freg_struct_return) || 1910 O.matches(OPT_msvr4_struct_return)); 1911 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1912 } 1913 } 1914 1915 if (Arg *A = 1916 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1917 if (!T.isOSAIX()) 1918 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1919 << A->getSpelling() << T.str(); 1920 1921 const Option &O = A->getOption(); 1922 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1923 } 1924 1925 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1926 if (!T.isOSAIX() || T.isPPC32()) 1927 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1928 << A->getSpelling() << T.str(); 1929 } 1930 1931 bool NeedLocTracking = false; 1932 1933 if (!Opts.OptRecordFile.empty()) 1934 NeedLocTracking = true; 1935 1936 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1937 Opts.OptRecordPasses = A->getValue(); 1938 NeedLocTracking = true; 1939 } 1940 1941 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1942 Opts.OptRecordFormat = A->getValue(); 1943 NeedLocTracking = true; 1944 } 1945 1946 Opts.OptimizationRemark = 1947 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1948 1949 Opts.OptimizationRemarkMissed = 1950 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1951 1952 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1953 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1954 1955 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1956 Opts.OptimizationRemarkMissed.hasValidPattern() || 1957 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1958 1959 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1960 bool UsingProfile = UsingSampleProfile || 1961 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1962 1963 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1964 // An IR file will contain PGO as metadata 1965 IK.getLanguage() != Language::LLVM_IR) 1966 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1967 << "-fdiagnostics-show-hotness"; 1968 1969 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1970 if (auto *arg = 1971 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1972 auto ResultOrErr = 1973 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1974 1975 if (!ResultOrErr) { 1976 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1977 << "-fdiagnostics-hotness-threshold="; 1978 } else { 1979 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1980 if ((!Opts.DiagnosticsHotnessThreshold || 1981 Opts.DiagnosticsHotnessThreshold.value() > 0) && 1982 !UsingProfile) 1983 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1984 << "-fdiagnostics-hotness-threshold="; 1985 } 1986 } 1987 1988 if (auto *arg = 1989 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1990 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1991 1992 if (!ResultOrErr) { 1993 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 1994 << "-fdiagnostics-misexpect-tolerance="; 1995 } else { 1996 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 1997 if ((!Opts.DiagnosticsMisExpectTolerance || 1998 Opts.DiagnosticsMisExpectTolerance.value() > 0) && 1999 !UsingProfile) 2000 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2001 << "-fdiagnostics-misexpect-tolerance="; 2002 } 2003 } 2004 2005 // If the user requested to use a sample profile for PGO, then the 2006 // backend will need to track source location information so the profile 2007 // can be incorporated into the IR. 2008 if (UsingSampleProfile) 2009 NeedLocTracking = true; 2010 2011 if (!Opts.StackUsageOutput.empty()) 2012 NeedLocTracking = true; 2013 2014 // If the user requested a flag that requires source locations available in 2015 // the backend, make sure that the backend tracks source location information. 2016 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2017 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2018 2019 // Parse -fsanitize-recover= arguments. 2020 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2021 parseSanitizerKinds("-fsanitize-recover=", 2022 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2023 Opts.SanitizeRecover); 2024 parseSanitizerKinds("-fsanitize-trap=", 2025 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2026 Opts.SanitizeTrap); 2027 2028 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2029 2030 if (Args.hasArg(options::OPT_ffinite_loops)) 2031 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2032 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2033 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2034 2035 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2036 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2037 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2038 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2039 2040 return Diags.getNumErrors() == NumErrorsBefore; 2041 } 2042 2043 static void 2044 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2045 SmallVectorImpl<const char *> &Args, 2046 CompilerInvocation::StringAllocator SA) { 2047 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2048 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2049 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2050 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2051 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2052 MERGER, EXTRACTOR, TABLE_INDEX) \ 2053 GENERATE_OPTION_WITH_MARSHALLING( \ 2054 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2055 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2056 #include "clang/Driver/Options.inc" 2057 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2058 2059 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2060 GenerateArg(Args, OPT_show_includes, SA); 2061 2062 for (const auto &Dep : Opts.ExtraDeps) { 2063 switch (Dep.second) { 2064 case EDK_SanitizeIgnorelist: 2065 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2066 continue; 2067 case EDK_ModuleFile: 2068 // Module file arguments are generated from FrontendOptions and 2069 // HeaderSearchOptions. 2070 continue; 2071 case EDK_ProfileList: 2072 // Profile list arguments are generated from LanguageOptions via the 2073 // marshalling infrastructure. 2074 continue; 2075 case EDK_DepFileEntry: 2076 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2077 break; 2078 } 2079 } 2080 } 2081 2082 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2083 ArgList &Args, DiagnosticsEngine &Diags, 2084 frontend::ActionKind Action, 2085 bool ShowLineMarkers) { 2086 unsigned NumErrorsBefore = Diags.getNumErrors(); 2087 2088 DependencyOutputOptions &DependencyOutputOpts = Opts; 2089 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2090 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2091 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2092 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2093 MERGER, EXTRACTOR, TABLE_INDEX) \ 2094 PARSE_OPTION_WITH_MARSHALLING( \ 2095 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2096 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2097 #include "clang/Driver/Options.inc" 2098 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2099 2100 if (Args.hasArg(OPT_show_includes)) { 2101 // Writing both /showIncludes and preprocessor output to stdout 2102 // would produce interleaved output, so use stderr for /showIncludes. 2103 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2104 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2105 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2106 else 2107 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2108 } else { 2109 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2110 } 2111 2112 // Add sanitizer ignorelists as extra dependencies. 2113 // They won't be discovered by the regular preprocessor, so 2114 // we let make / ninja to know about this implicit dependency. 2115 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2116 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2117 StringRef Val = A->getValue(); 2118 if (!Val.contains('=')) 2119 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2120 } 2121 if (Opts.IncludeSystemHeaders) { 2122 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2123 StringRef Val = A->getValue(); 2124 if (!Val.contains('=')) 2125 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2126 } 2127 } 2128 } 2129 2130 // -fprofile-list= dependencies. 2131 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2132 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2133 2134 // Propagate the extra dependencies. 2135 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2136 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2137 2138 // Only the -fmodule-file=<file> form. 2139 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2140 StringRef Val = A->getValue(); 2141 if (!Val.contains('=')) 2142 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2143 } 2144 2145 return Diags.getNumErrors() == NumErrorsBefore; 2146 } 2147 2148 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2149 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2150 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2151 // Support both clang's -f[no-]color-diagnostics and gcc's 2152 // -f[no-]diagnostics-colors[=never|always|auto]. 2153 enum { 2154 Colors_On, 2155 Colors_Off, 2156 Colors_Auto 2157 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2158 for (auto *A : Args) { 2159 const Option &O = A->getOption(); 2160 if (O.matches(options::OPT_fcolor_diagnostics)) { 2161 ShowColors = Colors_On; 2162 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2163 ShowColors = Colors_Off; 2164 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2165 StringRef Value(A->getValue()); 2166 if (Value == "always") 2167 ShowColors = Colors_On; 2168 else if (Value == "never") 2169 ShowColors = Colors_Off; 2170 else if (Value == "auto") 2171 ShowColors = Colors_Auto; 2172 } 2173 } 2174 return ShowColors == Colors_On || 2175 (ShowColors == Colors_Auto && 2176 llvm::sys::Process::StandardErrHasColors()); 2177 } 2178 2179 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2180 DiagnosticsEngine &Diags) { 2181 bool Success = true; 2182 for (const auto &Prefix : VerifyPrefixes) { 2183 // Every prefix must start with a letter and contain only alphanumeric 2184 // characters, hyphens, and underscores. 2185 auto BadChar = llvm::find_if(Prefix, [](char C) { 2186 return !isAlphanumeric(C) && C != '-' && C != '_'; 2187 }); 2188 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2189 Success = false; 2190 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2191 Diags.Report(diag::note_drv_verify_prefix_spelling); 2192 } 2193 } 2194 return Success; 2195 } 2196 2197 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2198 SmallVectorImpl<const char *> &Args, 2199 CompilerInvocation::StringAllocator SA) { 2200 const FileSystemOptions &FileSystemOpts = Opts; 2201 2202 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2203 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2204 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2205 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2206 MERGER, EXTRACTOR, TABLE_INDEX) \ 2207 GENERATE_OPTION_WITH_MARSHALLING( \ 2208 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2209 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2210 #include "clang/Driver/Options.inc" 2211 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2212 } 2213 2214 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2215 DiagnosticsEngine &Diags) { 2216 unsigned NumErrorsBefore = Diags.getNumErrors(); 2217 2218 FileSystemOptions &FileSystemOpts = Opts; 2219 2220 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2221 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2222 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2223 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2224 MERGER, EXTRACTOR, TABLE_INDEX) \ 2225 PARSE_OPTION_WITH_MARSHALLING( \ 2226 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2227 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2228 #include "clang/Driver/Options.inc" 2229 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2230 2231 return Diags.getNumErrors() == NumErrorsBefore; 2232 } 2233 2234 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2235 SmallVectorImpl<const char *> &Args, 2236 CompilerInvocation::StringAllocator SA) { 2237 const MigratorOptions &MigratorOpts = Opts; 2238 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2239 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2240 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2241 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2242 MERGER, EXTRACTOR, TABLE_INDEX) \ 2243 GENERATE_OPTION_WITH_MARSHALLING( \ 2244 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2245 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2246 #include "clang/Driver/Options.inc" 2247 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2248 } 2249 2250 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2251 DiagnosticsEngine &Diags) { 2252 unsigned NumErrorsBefore = Diags.getNumErrors(); 2253 2254 MigratorOptions &MigratorOpts = Opts; 2255 2256 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2257 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2258 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2259 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2260 MERGER, EXTRACTOR, TABLE_INDEX) \ 2261 PARSE_OPTION_WITH_MARSHALLING( \ 2262 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2263 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2264 #include "clang/Driver/Options.inc" 2265 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2266 2267 return Diags.getNumErrors() == NumErrorsBefore; 2268 } 2269 2270 void CompilerInvocation::GenerateDiagnosticArgs( 2271 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2272 StringAllocator SA, bool DefaultDiagColor) { 2273 const DiagnosticOptions *DiagnosticOpts = &Opts; 2274 #define DIAG_OPTION_WITH_MARSHALLING( \ 2275 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2276 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2277 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2278 MERGER, EXTRACTOR, TABLE_INDEX) \ 2279 GENERATE_OPTION_WITH_MARSHALLING( \ 2280 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2281 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2282 #include "clang/Driver/Options.inc" 2283 #undef DIAG_OPTION_WITH_MARSHALLING 2284 2285 if (!Opts.DiagnosticSerializationFile.empty()) 2286 GenerateArg(Args, OPT_diagnostic_serialized_file, 2287 Opts.DiagnosticSerializationFile, SA); 2288 2289 if (Opts.ShowColors) 2290 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2291 2292 if (Opts.VerifyDiagnostics && 2293 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2294 GenerateArg(Args, OPT_verify, SA); 2295 2296 for (const auto &Prefix : Opts.VerifyPrefixes) 2297 if (Prefix != "expected") 2298 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2299 2300 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2301 if (VIU == DiagnosticLevelMask::None) { 2302 // This is the default, don't generate anything. 2303 } else if (VIU == DiagnosticLevelMask::All) { 2304 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2305 } else { 2306 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2307 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2308 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2309 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2310 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2311 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2312 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2313 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2314 } 2315 2316 for (const auto &Warning : Opts.Warnings) { 2317 // This option is automatically generated from UndefPrefixes. 2318 if (Warning == "undef-prefix") 2319 continue; 2320 Args.push_back(SA(StringRef("-W") + Warning)); 2321 } 2322 2323 for (const auto &Remark : Opts.Remarks) { 2324 // These arguments are generated from OptimizationRemark fields of 2325 // CodeGenOptions. 2326 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2327 "pass-analysis", "no-pass-analysis", 2328 "pass-missed", "no-pass-missed"}; 2329 if (llvm::is_contained(IgnoredRemarks, Remark)) 2330 continue; 2331 2332 Args.push_back(SA(StringRef("-R") + Remark)); 2333 } 2334 } 2335 2336 std::unique_ptr<DiagnosticOptions> 2337 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2338 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2339 unsigned MissingArgIndex, MissingArgCount; 2340 InputArgList Args = getDriverOptTable().ParseArgs( 2341 Argv.slice(1), MissingArgIndex, MissingArgCount); 2342 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2343 // Any errors that would be diagnosed here will also be diagnosed later, 2344 // when the DiagnosticsEngine actually exists. 2345 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2346 return DiagOpts; 2347 } 2348 2349 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2350 DiagnosticsEngine *Diags, 2351 bool DefaultDiagColor) { 2352 Optional<DiagnosticsEngine> IgnoringDiags; 2353 if (!Diags) { 2354 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2355 new IgnoringDiagConsumer()); 2356 Diags = &*IgnoringDiags; 2357 } 2358 2359 unsigned NumErrorsBefore = Diags->getNumErrors(); 2360 2361 // The key paths of diagnostic options defined in Options.td start with 2362 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2363 DiagnosticOptions *DiagnosticOpts = &Opts; 2364 2365 #define DIAG_OPTION_WITH_MARSHALLING( \ 2366 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2367 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2368 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2369 MERGER, EXTRACTOR, TABLE_INDEX) \ 2370 PARSE_OPTION_WITH_MARSHALLING( \ 2371 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2372 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2373 #include "clang/Driver/Options.inc" 2374 #undef DIAG_OPTION_WITH_MARSHALLING 2375 2376 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2377 2378 if (Arg *A = 2379 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2380 Opts.DiagnosticSerializationFile = A->getValue(); 2381 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2382 2383 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2384 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2385 if (Args.hasArg(OPT_verify)) 2386 Opts.VerifyPrefixes.push_back("expected"); 2387 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2388 // then sort it to prepare for fast lookup using std::binary_search. 2389 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2390 Opts.VerifyDiagnostics = false; 2391 else 2392 llvm::sort(Opts.VerifyPrefixes); 2393 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2394 parseDiagnosticLevelMask( 2395 "-verify-ignore-unexpected=", 2396 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2397 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2398 DiagMask = DiagnosticLevelMask::All; 2399 Opts.setVerifyIgnoreUnexpected(DiagMask); 2400 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2401 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2402 Diags->Report(diag::warn_ignoring_ftabstop_value) 2403 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2404 } 2405 2406 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2407 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2408 2409 return Diags->getNumErrors() == NumErrorsBefore; 2410 } 2411 2412 /// Parse the argument to the -ftest-module-file-extension 2413 /// command-line argument. 2414 /// 2415 /// \returns true on error, false on success. 2416 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2417 std::string &BlockName, 2418 unsigned &MajorVersion, 2419 unsigned &MinorVersion, 2420 bool &Hashed, 2421 std::string &UserInfo) { 2422 SmallVector<StringRef, 5> Args; 2423 Arg.split(Args, ':', 5); 2424 if (Args.size() < 5) 2425 return true; 2426 2427 BlockName = std::string(Args[0]); 2428 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2429 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2430 if (Args[3].getAsInteger(2, Hashed)) return true; 2431 if (Args.size() > 4) 2432 UserInfo = std::string(Args[4]); 2433 return false; 2434 } 2435 2436 /// Return a table that associates command line option specifiers with the 2437 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2438 /// intentionally missing, as this case is handled separately from other 2439 /// frontend options. 2440 static const auto &getFrontendActionTable() { 2441 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2442 {frontend::ASTDeclList, OPT_ast_list}, 2443 2444 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2445 {frontend::ASTDump, OPT_ast_dump_all}, 2446 {frontend::ASTDump, OPT_ast_dump_EQ}, 2447 {frontend::ASTDump, OPT_ast_dump}, 2448 {frontend::ASTDump, OPT_ast_dump_lookups}, 2449 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2450 2451 {frontend::ASTPrint, OPT_ast_print}, 2452 {frontend::ASTView, OPT_ast_view}, 2453 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2454 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2455 {frontend::DumpTokens, OPT_dump_tokens}, 2456 {frontend::EmitAssembly, OPT_S}, 2457 {frontend::EmitBC, OPT_emit_llvm_bc}, 2458 {frontend::EmitHTML, OPT_emit_html}, 2459 {frontend::EmitLLVM, OPT_emit_llvm}, 2460 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2461 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2462 {frontend::EmitObj, OPT_emit_obj}, 2463 {frontend::ExtractAPI, OPT_extract_api}, 2464 2465 {frontend::FixIt, OPT_fixit_EQ}, 2466 {frontend::FixIt, OPT_fixit}, 2467 2468 {frontend::GenerateModule, OPT_emit_module}, 2469 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2470 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2471 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2472 {frontend::GeneratePCH, OPT_emit_pch}, 2473 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2474 {frontend::InitOnly, OPT_init_only}, 2475 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2476 {frontend::ModuleFileInfo, OPT_module_file_info}, 2477 {frontend::VerifyPCH, OPT_verify_pch}, 2478 {frontend::PrintPreamble, OPT_print_preamble}, 2479 {frontend::PrintPreprocessedInput, OPT_E}, 2480 {frontend::TemplightDump, OPT_templight_dump}, 2481 {frontend::RewriteMacros, OPT_rewrite_macros}, 2482 {frontend::RewriteObjC, OPT_rewrite_objc}, 2483 {frontend::RewriteTest, OPT_rewrite_test}, 2484 {frontend::RunAnalysis, OPT_analyze}, 2485 {frontend::MigrateSource, OPT_migrate}, 2486 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2487 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2488 OPT_print_dependency_directives_minimized_source}, 2489 }; 2490 2491 return Table; 2492 } 2493 2494 /// Maps command line option to frontend action. 2495 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2496 for (const auto &ActionOpt : getFrontendActionTable()) 2497 if (ActionOpt.second == Opt.getID()) 2498 return ActionOpt.first; 2499 2500 return None; 2501 } 2502 2503 /// Maps frontend action to command line option. 2504 static Optional<OptSpecifier> 2505 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2506 for (const auto &ActionOpt : getFrontendActionTable()) 2507 if (ActionOpt.first == ProgramAction) 2508 return OptSpecifier(ActionOpt.second); 2509 2510 return None; 2511 } 2512 2513 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2514 SmallVectorImpl<const char *> &Args, 2515 CompilerInvocation::StringAllocator SA, 2516 bool IsHeader) { 2517 const FrontendOptions &FrontendOpts = Opts; 2518 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2519 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2520 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2521 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2522 MERGER, EXTRACTOR, TABLE_INDEX) \ 2523 GENERATE_OPTION_WITH_MARSHALLING( \ 2524 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2525 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2526 #include "clang/Driver/Options.inc" 2527 #undef FRONTEND_OPTION_WITH_MARSHALLING 2528 2529 Optional<OptSpecifier> ProgramActionOpt = 2530 getProgramActionOpt(Opts.ProgramAction); 2531 2532 // Generating a simple flag covers most frontend actions. 2533 std::function<void()> GenerateProgramAction = [&]() { 2534 GenerateArg(Args, *ProgramActionOpt, SA); 2535 }; 2536 2537 if (!ProgramActionOpt) { 2538 // PluginAction is the only program action handled separately. 2539 assert(Opts.ProgramAction == frontend::PluginAction && 2540 "Frontend action without option."); 2541 GenerateProgramAction = [&]() { 2542 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2543 }; 2544 } 2545 2546 // FIXME: Simplify the complex 'AST dump' command line. 2547 if (Opts.ProgramAction == frontend::ASTDump) { 2548 GenerateProgramAction = [&]() { 2549 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2550 // marshalling infrastructure. 2551 2552 if (Opts.ASTDumpFormat != ADOF_Default) { 2553 StringRef Format; 2554 switch (Opts.ASTDumpFormat) { 2555 case ADOF_Default: 2556 llvm_unreachable("Default AST dump format."); 2557 case ADOF_JSON: 2558 Format = "json"; 2559 break; 2560 } 2561 2562 if (Opts.ASTDumpAll) 2563 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2564 if (Opts.ASTDumpDecls) 2565 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2566 } else { 2567 if (Opts.ASTDumpAll) 2568 GenerateArg(Args, OPT_ast_dump_all, SA); 2569 if (Opts.ASTDumpDecls) 2570 GenerateArg(Args, OPT_ast_dump, SA); 2571 } 2572 }; 2573 } 2574 2575 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2576 GenerateProgramAction = [&]() { 2577 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2578 }; 2579 } 2580 2581 GenerateProgramAction(); 2582 2583 for (const auto &PluginArgs : Opts.PluginArgs) { 2584 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2585 const char *Spelling = 2586 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2587 for (const auto &PluginArg : PluginArgs.second) 2588 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2589 } 2590 2591 for (const auto &Ext : Opts.ModuleFileExtensions) 2592 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2593 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2594 2595 if (!Opts.CodeCompletionAt.FileName.empty()) 2596 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2597 SA); 2598 2599 for (const auto &Plugin : Opts.Plugins) 2600 GenerateArg(Args, OPT_load, Plugin, SA); 2601 2602 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2603 2604 for (const auto &ModuleFile : Opts.ModuleFiles) 2605 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2606 2607 if (Opts.AuxTargetCPU) 2608 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2609 2610 if (Opts.AuxTargetFeatures) 2611 for (const auto &Feature : *Opts.AuxTargetFeatures) 2612 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2613 2614 { 2615 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2616 StringRef ModuleMap = 2617 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2618 StringRef HeaderUnit = ""; 2619 switch (Opts.DashX.getHeaderUnitKind()) { 2620 case InputKind::HeaderUnit_None: 2621 break; 2622 case InputKind::HeaderUnit_User: 2623 HeaderUnit = "-user"; 2624 break; 2625 case InputKind::HeaderUnit_System: 2626 HeaderUnit = "-system"; 2627 break; 2628 case InputKind::HeaderUnit_Abs: 2629 HeaderUnit = "-header-unit"; 2630 break; 2631 } 2632 StringRef Header = IsHeader ? "-header" : ""; 2633 2634 StringRef Lang; 2635 switch (Opts.DashX.getLanguage()) { 2636 case Language::C: 2637 Lang = "c"; 2638 break; 2639 case Language::OpenCL: 2640 Lang = "cl"; 2641 break; 2642 case Language::OpenCLCXX: 2643 Lang = "clcpp"; 2644 break; 2645 case Language::CUDA: 2646 Lang = "cuda"; 2647 break; 2648 case Language::HIP: 2649 Lang = "hip"; 2650 break; 2651 case Language::CXX: 2652 Lang = "c++"; 2653 break; 2654 case Language::ObjC: 2655 Lang = "objective-c"; 2656 break; 2657 case Language::ObjCXX: 2658 Lang = "objective-c++"; 2659 break; 2660 case Language::RenderScript: 2661 Lang = "renderscript"; 2662 break; 2663 case Language::Asm: 2664 Lang = "assembler-with-cpp"; 2665 break; 2666 case Language::Unknown: 2667 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2668 "Generating -x argument for unknown language (not precompiled)."); 2669 Lang = "ast"; 2670 break; 2671 case Language::LLVM_IR: 2672 Lang = "ir"; 2673 break; 2674 case Language::HLSL: 2675 Lang = "hlsl"; 2676 break; 2677 } 2678 2679 GenerateArg(Args, OPT_x, 2680 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2681 } 2682 2683 // OPT_INPUT has a unique class, generate it directly. 2684 for (const auto &Input : Opts.Inputs) 2685 Args.push_back(SA(Input.getFile())); 2686 } 2687 2688 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2689 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2690 unsigned NumErrorsBefore = Diags.getNumErrors(); 2691 2692 FrontendOptions &FrontendOpts = Opts; 2693 2694 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2695 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2696 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2697 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2698 MERGER, EXTRACTOR, TABLE_INDEX) \ 2699 PARSE_OPTION_WITH_MARSHALLING( \ 2700 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2701 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2702 #include "clang/Driver/Options.inc" 2703 #undef FRONTEND_OPTION_WITH_MARSHALLING 2704 2705 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2706 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2707 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2708 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2709 assert(ProgramAction && "Option specifier not in Action_Group."); 2710 2711 if (ProgramAction == frontend::ASTDump && 2712 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2713 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2714 .CaseLower("default", ADOF_Default) 2715 .CaseLower("json", ADOF_JSON) 2716 .Default(std::numeric_limits<unsigned>::max()); 2717 2718 if (Val != std::numeric_limits<unsigned>::max()) 2719 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2720 else { 2721 Diags.Report(diag::err_drv_invalid_value) 2722 << A->getAsString(Args) << A->getValue(); 2723 Opts.ASTDumpFormat = ADOF_Default; 2724 } 2725 } 2726 2727 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2728 Opts.FixItSuffix = A->getValue(); 2729 2730 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2731 StringRef ArgStr = 2732 Args.hasArg(OPT_interface_stub_version_EQ) 2733 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2734 : "ifs-v1"; 2735 if (ArgStr == "experimental-yaml-elf-v1" || 2736 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2737 ArgStr == "experimental-tapi-elf-v1") { 2738 std::string ErrorMessage = 2739 "Invalid interface stub format: " + ArgStr.str() + 2740 " is deprecated."; 2741 Diags.Report(diag::err_drv_invalid_value) 2742 << "Must specify a valid interface stub format type, ie: " 2743 "-interface-stub-version=ifs-v1" 2744 << ErrorMessage; 2745 ProgramAction = frontend::ParseSyntaxOnly; 2746 } else if (!ArgStr.startswith("ifs-")) { 2747 std::string ErrorMessage = 2748 "Invalid interface stub format: " + ArgStr.str() + "."; 2749 Diags.Report(diag::err_drv_invalid_value) 2750 << "Must specify a valid interface stub format type, ie: " 2751 "-interface-stub-version=ifs-v1" 2752 << ErrorMessage; 2753 ProgramAction = frontend::ParseSyntaxOnly; 2754 } 2755 } 2756 2757 Opts.ProgramAction = *ProgramAction; 2758 } 2759 2760 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2761 Opts.Plugins.emplace_back(A->getValue(0)); 2762 Opts.ProgramAction = frontend::PluginAction; 2763 Opts.ActionName = A->getValue(); 2764 } 2765 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2766 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2767 2768 for (const std::string &Arg : 2769 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2770 std::string BlockName; 2771 unsigned MajorVersion; 2772 unsigned MinorVersion; 2773 bool Hashed; 2774 std::string UserInfo; 2775 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2776 MinorVersion, Hashed, UserInfo)) { 2777 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2778 2779 continue; 2780 } 2781 2782 // Add the testing module file extension. 2783 Opts.ModuleFileExtensions.push_back( 2784 std::make_shared<TestModuleFileExtension>( 2785 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2786 } 2787 2788 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2789 Opts.CodeCompletionAt = 2790 ParsedSourceLocation::FromString(A->getValue()); 2791 if (Opts.CodeCompletionAt.FileName.empty()) 2792 Diags.Report(diag::err_drv_invalid_value) 2793 << A->getAsString(Args) << A->getValue(); 2794 } 2795 2796 Opts.Plugins = Args.getAllArgValues(OPT_load); 2797 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2798 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2799 // Only the -fmodule-file=<file> form. 2800 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2801 StringRef Val = A->getValue(); 2802 if (!Val.contains('=')) 2803 Opts.ModuleFiles.push_back(std::string(Val)); 2804 } 2805 2806 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2807 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2808 << "-emit-module"; 2809 2810 if (Args.hasArg(OPT_aux_target_cpu)) 2811 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2812 if (Args.hasArg(OPT_aux_target_feature)) 2813 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2814 2815 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2816 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2817 Diags.Report(diag::err_drv_argument_not_allowed_with) 2818 << "ARC migration" << "ObjC migration"; 2819 } 2820 2821 InputKind DashX(Language::Unknown); 2822 if (const Arg *A = Args.getLastArg(OPT_x)) { 2823 StringRef XValue = A->getValue(); 2824 2825 // Parse suffixes: 2826 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2827 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2828 bool Preprocessed = XValue.consume_back("-cpp-output"); 2829 bool ModuleMap = XValue.consume_back("-module-map"); 2830 // Detect and consume the header indicator. 2831 bool IsHeader = 2832 XValue != "precompiled-header" && XValue.consume_back("-header"); 2833 2834 // If we have c++-{user,system}-header, that indicates a header unit input 2835 // likewise, if the user put -fmodule-header together with a header with an 2836 // absolute path (header-unit-header). 2837 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2838 if (IsHeader || Preprocessed) { 2839 if (XValue.consume_back("-header-unit")) 2840 HUK = InputKind::HeaderUnit_Abs; 2841 else if (XValue.consume_back("-system")) 2842 HUK = InputKind::HeaderUnit_System; 2843 else if (XValue.consume_back("-user")) 2844 HUK = InputKind::HeaderUnit_User; 2845 } 2846 2847 // The value set by this processing is an un-preprocessed source which is 2848 // not intended to be a module map or header unit. 2849 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2850 HUK == InputKind::HeaderUnit_None; 2851 2852 // Principal languages. 2853 DashX = llvm::StringSwitch<InputKind>(XValue) 2854 .Case("c", Language::C) 2855 .Case("cl", Language::OpenCL) 2856 .Case("clcpp", Language::OpenCLCXX) 2857 .Case("cuda", Language::CUDA) 2858 .Case("hip", Language::HIP) 2859 .Case("c++", Language::CXX) 2860 .Case("objective-c", Language::ObjC) 2861 .Case("objective-c++", Language::ObjCXX) 2862 .Case("renderscript", Language::RenderScript) 2863 .Case("hlsl", Language::HLSL) 2864 .Default(Language::Unknown); 2865 2866 // "objc[++]-cpp-output" is an acceptable synonym for 2867 // "objective-c[++]-cpp-output". 2868 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2869 HUK == InputKind::HeaderUnit_None) 2870 DashX = llvm::StringSwitch<InputKind>(XValue) 2871 .Case("objc", Language::ObjC) 2872 .Case("objc++", Language::ObjCXX) 2873 .Default(Language::Unknown); 2874 2875 // Some special cases cannot be combined with suffixes. 2876 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2877 HUK == InputKind::HeaderUnit_None) 2878 DashX = llvm::StringSwitch<InputKind>(XValue) 2879 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2880 .Case("assembler-with-cpp", Language::Asm) 2881 .Cases("ast", "pcm", "precompiled-header", 2882 InputKind(Language::Unknown, InputKind::Precompiled)) 2883 .Case("ir", Language::LLVM_IR) 2884 .Default(Language::Unknown); 2885 2886 if (DashX.isUnknown()) 2887 Diags.Report(diag::err_drv_invalid_value) 2888 << A->getAsString(Args) << A->getValue(); 2889 2890 if (Preprocessed) 2891 DashX = DashX.getPreprocessed(); 2892 // A regular header is considered mutually exclusive with a header unit. 2893 if (HUK != InputKind::HeaderUnit_None) { 2894 DashX = DashX.withHeaderUnit(HUK); 2895 IsHeaderFile = true; 2896 } else if (IsHeaderFile) 2897 DashX = DashX.getHeader(); 2898 if (ModuleMap) 2899 DashX = DashX.withFormat(InputKind::ModuleMap); 2900 } 2901 2902 // '-' is the default input if none is given. 2903 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2904 Opts.Inputs.clear(); 2905 if (Inputs.empty()) 2906 Inputs.push_back("-"); 2907 2908 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2909 Inputs.size() > 1) 2910 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2911 2912 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2913 InputKind IK = DashX; 2914 if (IK.isUnknown()) { 2915 IK = FrontendOptions::getInputKindForExtension( 2916 StringRef(Inputs[i]).rsplit('.').second); 2917 // FIXME: Warn on this? 2918 if (IK.isUnknown()) 2919 IK = Language::C; 2920 // FIXME: Remove this hack. 2921 if (i == 0) 2922 DashX = IK; 2923 } 2924 2925 bool IsSystem = false; 2926 2927 // The -emit-module action implicitly takes a module map. 2928 if (Opts.ProgramAction == frontend::GenerateModule && 2929 IK.getFormat() == InputKind::Source) { 2930 IK = IK.withFormat(InputKind::ModuleMap); 2931 IsSystem = Opts.IsSystemModule; 2932 } 2933 2934 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2935 } 2936 2937 Opts.DashX = DashX; 2938 2939 return Diags.getNumErrors() == NumErrorsBefore; 2940 } 2941 2942 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2943 void *MainAddr) { 2944 std::string ClangExecutable = 2945 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2946 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2947 } 2948 2949 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2950 SmallVectorImpl<const char *> &Args, 2951 CompilerInvocation::StringAllocator SA) { 2952 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2953 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2954 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2955 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2956 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2957 MERGER, EXTRACTOR, TABLE_INDEX) \ 2958 GENERATE_OPTION_WITH_MARSHALLING( \ 2959 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2960 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2961 #include "clang/Driver/Options.inc" 2962 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2963 2964 if (Opts.UseLibcxx) 2965 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2966 2967 if (!Opts.ModuleCachePath.empty()) 2968 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2969 2970 for (const auto &File : Opts.PrebuiltModuleFiles) 2971 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2972 2973 for (const auto &Path : Opts.PrebuiltModulePaths) 2974 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2975 2976 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2977 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2978 2979 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2980 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2981 llvm::Optional<bool> IsFramework, 2982 llvm::Optional<bool> IgnoreSysRoot) { 2983 return llvm::is_contained(Groups, Entry.Group) && 2984 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2985 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2986 }; 2987 2988 auto It = Opts.UserEntries.begin(); 2989 auto End = Opts.UserEntries.end(); 2990 2991 // Add -I..., -F..., and -index-header-map options in order. 2992 for (; It < End && 2993 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2994 ++It) { 2995 OptSpecifier Opt = [It, Matches]() { 2996 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2997 return OPT_F; 2998 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2999 return OPT_I; 3000 if (Matches(*It, frontend::Angled, true, true)) 3001 return OPT_F; 3002 if (Matches(*It, frontend::Angled, false, true)) 3003 return OPT_I; 3004 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3005 }(); 3006 3007 if (It->Group == frontend::IndexHeaderMap) 3008 GenerateArg(Args, OPT_index_header_map, SA); 3009 GenerateArg(Args, Opt, It->Path, SA); 3010 }; 3011 3012 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3013 // have already been generated as "-I[xx]yy". If that's the case, their 3014 // position on command line was such that this has no semantic impact on 3015 // include paths. 3016 for (; It < End && 3017 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3018 ++It) { 3019 OptSpecifier Opt = 3020 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3021 GenerateArg(Args, Opt, It->Path, SA); 3022 } 3023 3024 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3025 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3026 // command line was such that this has no semantic impact on include paths. 3027 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3028 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3029 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3030 GenerateArg(Args, OPT_iquote, It->Path, SA); 3031 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3032 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3033 It->Path, SA); 3034 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3035 GenerateArg(Args, OPT_iframework, It->Path, SA); 3036 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3037 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3038 3039 // Add the paths for the various language specific isystem flags. 3040 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3041 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3042 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3043 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3044 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3045 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3046 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3047 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3048 3049 // Add the internal paths from a driver that detects standard include paths. 3050 // Note: Some paths that came from "-internal-isystem" arguments may have 3051 // already been generated as "-isystem". If that's the case, their position on 3052 // command line was such that this has no semantic impact on include paths. 3053 for (; It < End && 3054 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3055 ++It) { 3056 OptSpecifier Opt = It->Group == frontend::System 3057 ? OPT_internal_isystem 3058 : OPT_internal_externc_isystem; 3059 GenerateArg(Args, Opt, It->Path, SA); 3060 } 3061 3062 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3063 3064 // Add the path prefixes which are implicitly treated as being system headers. 3065 for (const auto &P : Opts.SystemHeaderPrefixes) { 3066 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3067 : OPT_no_system_header_prefix; 3068 GenerateArg(Args, Opt, P.Prefix, SA); 3069 } 3070 3071 for (const std::string &F : Opts.VFSOverlayFiles) 3072 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3073 } 3074 3075 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3076 DiagnosticsEngine &Diags, 3077 const std::string &WorkingDir) { 3078 unsigned NumErrorsBefore = Diags.getNumErrors(); 3079 3080 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3081 3082 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3083 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3084 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3085 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3086 MERGER, EXTRACTOR, TABLE_INDEX) \ 3087 PARSE_OPTION_WITH_MARSHALLING( \ 3088 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3089 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3090 #include "clang/Driver/Options.inc" 3091 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3092 3093 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3094 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3095 3096 // Canonicalize -fmodules-cache-path before storing it. 3097 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3098 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3099 if (WorkingDir.empty()) 3100 llvm::sys::fs::make_absolute(P); 3101 else 3102 llvm::sys::fs::make_absolute(WorkingDir, P); 3103 } 3104 llvm::sys::path::remove_dots(P); 3105 Opts.ModuleCachePath = std::string(P.str()); 3106 3107 // Only the -fmodule-file=<name>=<file> form. 3108 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3109 StringRef Val = A->getValue(); 3110 if (Val.contains('=')) { 3111 auto Split = Val.split('='); 3112 Opts.PrebuiltModuleFiles.insert( 3113 {std::string(Split.first), std::string(Split.second)}); 3114 } 3115 } 3116 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3117 Opts.AddPrebuiltModulePath(A->getValue()); 3118 3119 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3120 StringRef MacroDef = A->getValue(); 3121 Opts.ModulesIgnoreMacros.insert( 3122 llvm::CachedHashString(MacroDef.split('=').first)); 3123 } 3124 3125 // Add -I..., -F..., and -index-header-map options in order. 3126 bool IsIndexHeaderMap = false; 3127 bool IsSysrootSpecified = 3128 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3129 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3130 if (A->getOption().matches(OPT_index_header_map)) { 3131 // -index-header-map applies to the next -I or -F. 3132 IsIndexHeaderMap = true; 3133 continue; 3134 } 3135 3136 frontend::IncludeDirGroup Group = 3137 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3138 3139 bool IsFramework = A->getOption().matches(OPT_F); 3140 std::string Path = A->getValue(); 3141 3142 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3143 SmallString<32> Buffer; 3144 llvm::sys::path::append(Buffer, Opts.Sysroot, 3145 llvm::StringRef(A->getValue()).substr(1)); 3146 Path = std::string(Buffer.str()); 3147 } 3148 3149 Opts.AddPath(Path, Group, IsFramework, 3150 /*IgnoreSysroot*/ true); 3151 IsIndexHeaderMap = false; 3152 } 3153 3154 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3155 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3156 for (const auto *A : 3157 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3158 if (A->getOption().matches(OPT_iprefix)) 3159 Prefix = A->getValue(); 3160 else if (A->getOption().matches(OPT_iwithprefix)) 3161 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3162 else 3163 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3164 } 3165 3166 for (const auto *A : Args.filtered(OPT_idirafter)) 3167 Opts.AddPath(A->getValue(), frontend::After, false, true); 3168 for (const auto *A : Args.filtered(OPT_iquote)) 3169 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3170 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3171 Opts.AddPath(A->getValue(), frontend::System, false, 3172 !A->getOption().matches(OPT_iwithsysroot)); 3173 for (const auto *A : Args.filtered(OPT_iframework)) 3174 Opts.AddPath(A->getValue(), frontend::System, true, true); 3175 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3176 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3177 /*IgnoreSysRoot=*/false); 3178 3179 // Add the paths for the various language specific isystem flags. 3180 for (const auto *A : Args.filtered(OPT_c_isystem)) 3181 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3182 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3183 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3184 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3185 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3186 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3187 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3188 3189 // Add the internal paths from a driver that detects standard include paths. 3190 for (const auto *A : 3191 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3192 frontend::IncludeDirGroup Group = frontend::System; 3193 if (A->getOption().matches(OPT_internal_externc_isystem)) 3194 Group = frontend::ExternCSystem; 3195 Opts.AddPath(A->getValue(), Group, false, true); 3196 } 3197 3198 // Add the path prefixes which are implicitly treated as being system headers. 3199 for (const auto *A : 3200 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3201 Opts.AddSystemHeaderPrefix( 3202 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3203 3204 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3205 Opts.AddVFSOverlayFile(A->getValue()); 3206 3207 return Diags.getNumErrors() == NumErrorsBefore; 3208 } 3209 3210 /// Check if input file kind and language standard are compatible. 3211 static bool IsInputCompatibleWithStandard(InputKind IK, 3212 const LangStandard &S) { 3213 switch (IK.getLanguage()) { 3214 case Language::Unknown: 3215 case Language::LLVM_IR: 3216 llvm_unreachable("should not parse language flags for this input"); 3217 3218 case Language::C: 3219 case Language::ObjC: 3220 case Language::RenderScript: 3221 return S.getLanguage() == Language::C; 3222 3223 case Language::OpenCL: 3224 return S.getLanguage() == Language::OpenCL || 3225 S.getLanguage() == Language::OpenCLCXX; 3226 3227 case Language::OpenCLCXX: 3228 return S.getLanguage() == Language::OpenCLCXX; 3229 3230 case Language::CXX: 3231 case Language::ObjCXX: 3232 return S.getLanguage() == Language::CXX; 3233 3234 case Language::CUDA: 3235 // FIXME: What -std= values should be permitted for CUDA compilations? 3236 return S.getLanguage() == Language::CUDA || 3237 S.getLanguage() == Language::CXX; 3238 3239 case Language::HIP: 3240 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3241 3242 case Language::Asm: 3243 // Accept (and ignore) all -std= values. 3244 // FIXME: The -std= value is not ignored; it affects the tokenization 3245 // and preprocessing rules if we're preprocessing this asm input. 3246 return true; 3247 3248 case Language::HLSL: 3249 return S.getLanguage() == Language::HLSL; 3250 } 3251 3252 llvm_unreachable("unexpected input language"); 3253 } 3254 3255 /// Get language name for given input kind. 3256 static StringRef GetInputKindName(InputKind IK) { 3257 switch (IK.getLanguage()) { 3258 case Language::C: 3259 return "C"; 3260 case Language::ObjC: 3261 return "Objective-C"; 3262 case Language::CXX: 3263 return "C++"; 3264 case Language::ObjCXX: 3265 return "Objective-C++"; 3266 case Language::OpenCL: 3267 return "OpenCL"; 3268 case Language::OpenCLCXX: 3269 return "C++ for OpenCL"; 3270 case Language::CUDA: 3271 return "CUDA"; 3272 case Language::RenderScript: 3273 return "RenderScript"; 3274 case Language::HIP: 3275 return "HIP"; 3276 3277 case Language::Asm: 3278 return "Asm"; 3279 case Language::LLVM_IR: 3280 return "LLVM IR"; 3281 3282 case Language::HLSL: 3283 return "HLSL"; 3284 3285 case Language::Unknown: 3286 break; 3287 } 3288 llvm_unreachable("unknown input language"); 3289 } 3290 3291 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3292 SmallVectorImpl<const char *> &Args, 3293 StringAllocator SA, 3294 const llvm::Triple &T, InputKind IK) { 3295 if (IK.getFormat() == InputKind::Precompiled || 3296 IK.getLanguage() == Language::LLVM_IR) { 3297 if (Opts.ObjCAutoRefCount) 3298 GenerateArg(Args, OPT_fobjc_arc, SA); 3299 if (Opts.PICLevel != 0) 3300 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3301 if (Opts.PIE) 3302 GenerateArg(Args, OPT_pic_is_pie, SA); 3303 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3304 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3305 3306 return; 3307 } 3308 3309 OptSpecifier StdOpt; 3310 switch (Opts.LangStd) { 3311 case LangStandard::lang_opencl10: 3312 case LangStandard::lang_opencl11: 3313 case LangStandard::lang_opencl12: 3314 case LangStandard::lang_opencl20: 3315 case LangStandard::lang_opencl30: 3316 case LangStandard::lang_openclcpp10: 3317 case LangStandard::lang_openclcpp2021: 3318 StdOpt = OPT_cl_std_EQ; 3319 break; 3320 default: 3321 StdOpt = OPT_std_EQ; 3322 break; 3323 } 3324 3325 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3326 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3327 3328 if (Opts.IncludeDefaultHeader) 3329 GenerateArg(Args, OPT_finclude_default_header, SA); 3330 if (Opts.DeclareOpenCLBuiltins) 3331 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3332 3333 const LangOptions *LangOpts = &Opts; 3334 3335 #define LANG_OPTION_WITH_MARSHALLING( \ 3336 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3337 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3338 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3339 MERGER, EXTRACTOR, TABLE_INDEX) \ 3340 GENERATE_OPTION_WITH_MARSHALLING( \ 3341 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3342 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3343 #include "clang/Driver/Options.inc" 3344 #undef LANG_OPTION_WITH_MARSHALLING 3345 3346 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3347 3348 if (Opts.ObjC) { 3349 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3350 3351 if (Opts.GC == LangOptions::GCOnly) 3352 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3353 else if (Opts.GC == LangOptions::HybridGC) 3354 GenerateArg(Args, OPT_fobjc_gc, SA); 3355 else if (Opts.ObjCAutoRefCount == 1) 3356 GenerateArg(Args, OPT_fobjc_arc, SA); 3357 3358 if (Opts.ObjCWeakRuntime) 3359 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3360 3361 if (Opts.ObjCWeak) 3362 GenerateArg(Args, OPT_fobjc_weak, SA); 3363 3364 if (Opts.ObjCSubscriptingLegacyRuntime) 3365 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3366 } 3367 3368 if (Opts.GNUCVersion != 0) { 3369 unsigned Major = Opts.GNUCVersion / 100 / 100; 3370 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3371 unsigned Patch = Opts.GNUCVersion % 100; 3372 GenerateArg(Args, OPT_fgnuc_version_EQ, 3373 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3374 } 3375 3376 if (Opts.IgnoreXCOFFVisibility) 3377 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3378 3379 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3380 GenerateArg(Args, OPT_ftrapv, SA); 3381 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3382 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3383 GenerateArg(Args, OPT_fwrapv, SA); 3384 } 3385 3386 if (Opts.MSCompatibilityVersion != 0) { 3387 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3388 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3389 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3390 GenerateArg(Args, OPT_fms_compatibility_version, 3391 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3392 } 3393 3394 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3395 if (!Opts.Trigraphs) 3396 GenerateArg(Args, OPT_fno_trigraphs, SA); 3397 } else { 3398 if (Opts.Trigraphs) 3399 GenerateArg(Args, OPT_ftrigraphs, SA); 3400 } 3401 3402 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3403 GenerateArg(Args, OPT_fblocks, SA); 3404 3405 if (Opts.ConvergentFunctions && 3406 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3407 GenerateArg(Args, OPT_fconvergent_functions, SA); 3408 3409 if (Opts.NoBuiltin && !Opts.Freestanding) 3410 GenerateArg(Args, OPT_fno_builtin, SA); 3411 3412 if (!Opts.NoBuiltin) 3413 for (const auto &Func : Opts.NoBuiltinFuncs) 3414 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3415 3416 if (Opts.LongDoubleSize == 128) 3417 GenerateArg(Args, OPT_mlong_double_128, SA); 3418 else if (Opts.LongDoubleSize == 64) 3419 GenerateArg(Args, OPT_mlong_double_64, SA); 3420 else if (Opts.LongDoubleSize == 80) 3421 GenerateArg(Args, OPT_mlong_double_80, SA); 3422 3423 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3424 3425 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3426 // '-fopenmp-targets='. 3427 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3428 GenerateArg(Args, OPT_fopenmp, SA); 3429 3430 if (Opts.OpenMP != 50) 3431 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3432 3433 if (!Opts.OpenMPUseTLS) 3434 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3435 3436 if (Opts.OpenMPIsDevice) 3437 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3438 3439 if (Opts.OpenMPIRBuilder) 3440 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3441 } 3442 3443 if (Opts.OpenMPSimd) { 3444 GenerateArg(Args, OPT_fopenmp_simd, SA); 3445 3446 if (Opts.OpenMP != 50) 3447 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3448 } 3449 3450 if (Opts.OpenMPThreadSubscription) 3451 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3452 3453 if (Opts.OpenMPTeamSubscription) 3454 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3455 3456 if (Opts.OpenMPTargetDebug != 0) 3457 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3458 Twine(Opts.OpenMPTargetDebug), SA); 3459 3460 if (Opts.OpenMPCUDANumSMs != 0) 3461 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3462 Twine(Opts.OpenMPCUDANumSMs), SA); 3463 3464 if (Opts.OpenMPCUDABlocksPerSM != 0) 3465 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3466 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3467 3468 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3469 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3470 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3471 3472 if (!Opts.OMPTargetTriples.empty()) { 3473 std::string Targets; 3474 llvm::raw_string_ostream OS(Targets); 3475 llvm::interleave( 3476 Opts.OMPTargetTriples, OS, 3477 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3478 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3479 } 3480 3481 if (!Opts.OMPHostIRFile.empty()) 3482 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3483 3484 if (Opts.OpenMPCUDAMode) 3485 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3486 3487 if (Opts.OpenMPCUDAForceFullRuntime) 3488 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3489 3490 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3491 // generated from CodeGenOptions. 3492 3493 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3494 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3495 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3496 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3497 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3498 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3499 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3500 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3501 3502 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3503 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3504 3505 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3506 for (const std::string &F : Opts.NoSanitizeFiles) 3507 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3508 3509 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3510 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3511 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3512 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3513 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3514 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3515 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3516 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3517 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3518 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3519 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3520 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3521 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3522 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3523 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3524 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3525 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver15) 3526 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "15.0", SA); 3527 3528 if (Opts.getSignReturnAddressScope() == 3529 LangOptions::SignReturnAddressScopeKind::All) 3530 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3531 else if (Opts.getSignReturnAddressScope() == 3532 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3533 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3534 3535 if (Opts.getSignReturnAddressKey() == 3536 LangOptions::SignReturnAddressKeyKind::BKey) 3537 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3538 3539 if (Opts.CXXABI) 3540 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3541 SA); 3542 3543 if (Opts.RelativeCXXABIVTables) 3544 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3545 else 3546 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3547 3548 if (Opts.UseTargetPathSeparator) 3549 GenerateArg(Args, OPT_ffile_reproducible, SA); 3550 else 3551 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3552 3553 for (const auto &MP : Opts.MacroPrefixMap) 3554 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3555 3556 if (!Opts.RandstructSeed.empty()) 3557 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3558 } 3559 3560 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3561 InputKind IK, const llvm::Triple &T, 3562 std::vector<std::string> &Includes, 3563 DiagnosticsEngine &Diags) { 3564 unsigned NumErrorsBefore = Diags.getNumErrors(); 3565 3566 if (IK.getFormat() == InputKind::Precompiled || 3567 IK.getLanguage() == Language::LLVM_IR) { 3568 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3569 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3570 // what the input type is. 3571 if (Args.hasArg(OPT_fobjc_arc)) 3572 Opts.ObjCAutoRefCount = 1; 3573 // PICLevel and PIELevel are needed during code generation and this should 3574 // be set regardless of the input type. 3575 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3576 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3577 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3578 Diags, Opts.Sanitize); 3579 3580 return Diags.getNumErrors() == NumErrorsBefore; 3581 } 3582 3583 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3584 // FIXME: Should we really be parsing this for an Language::Asm input? 3585 3586 // FIXME: Cleanup per-file based stuff. 3587 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3588 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3589 LangStd = LangStandard::getLangKind(A->getValue()); 3590 if (LangStd == LangStandard::lang_unspecified) { 3591 Diags.Report(diag::err_drv_invalid_value) 3592 << A->getAsString(Args) << A->getValue(); 3593 // Report supported standards with short description. 3594 for (unsigned KindValue = 0; 3595 KindValue != LangStandard::lang_unspecified; 3596 ++KindValue) { 3597 const LangStandard &Std = LangStandard::getLangStandardForKind( 3598 static_cast<LangStandard::Kind>(KindValue)); 3599 if (IsInputCompatibleWithStandard(IK, Std)) { 3600 auto Diag = Diags.Report(diag::note_drv_use_standard); 3601 Diag << Std.getName() << Std.getDescription(); 3602 unsigned NumAliases = 0; 3603 #define LANGSTANDARD(id, name, lang, desc, features) 3604 #define LANGSTANDARD_ALIAS(id, alias) \ 3605 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3606 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3607 #include "clang/Basic/LangStandards.def" 3608 Diag << NumAliases; 3609 #define LANGSTANDARD(id, name, lang, desc, features) 3610 #define LANGSTANDARD_ALIAS(id, alias) \ 3611 if (KindValue == LangStandard::lang_##id) Diag << alias; 3612 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3613 #include "clang/Basic/LangStandards.def" 3614 } 3615 } 3616 } else { 3617 // Valid standard, check to make sure language and standard are 3618 // compatible. 3619 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3620 if (!IsInputCompatibleWithStandard(IK, Std)) { 3621 Diags.Report(diag::err_drv_argument_not_allowed_with) 3622 << A->getAsString(Args) << GetInputKindName(IK); 3623 } 3624 } 3625 } 3626 3627 // -cl-std only applies for OpenCL language standards. 3628 // Override the -std option in this case. 3629 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3630 LangStandard::Kind OpenCLLangStd 3631 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3632 .Cases("cl", "CL", LangStandard::lang_opencl10) 3633 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3634 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3635 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3636 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3637 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3638 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3639 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3640 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3641 .Default(LangStandard::lang_unspecified); 3642 3643 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3644 Diags.Report(diag::err_drv_invalid_value) 3645 << A->getAsString(Args) << A->getValue(); 3646 } 3647 else 3648 LangStd = OpenCLLangStd; 3649 } 3650 3651 // These need to be parsed now. They are used to set OpenCL defaults. 3652 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3653 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3654 3655 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3656 3657 // The key paths of codegen options defined in Options.td start with 3658 // "LangOpts->". Let's provide the expected variable name and type. 3659 LangOptions *LangOpts = &Opts; 3660 3661 #define LANG_OPTION_WITH_MARSHALLING( \ 3662 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3663 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3664 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3665 MERGER, EXTRACTOR, TABLE_INDEX) \ 3666 PARSE_OPTION_WITH_MARSHALLING( \ 3667 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3668 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3669 #include "clang/Driver/Options.inc" 3670 #undef LANG_OPTION_WITH_MARSHALLING 3671 3672 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3673 StringRef Name = A->getValue(); 3674 if (Name == "full" || Name == "branch") { 3675 Opts.CFProtectionBranch = 1; 3676 } 3677 } 3678 3679 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3680 !Args.hasArg(OPT_sycl_std_EQ)) { 3681 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3682 // provide -sycl-std=, we want to default it to whatever the default SYCL 3683 // version is. I could not find a way to express this with the options 3684 // tablegen because we still want this value to be SYCL_None when the user 3685 // is not in device or host mode. 3686 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3687 } 3688 3689 if (Opts.ObjC) { 3690 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3691 StringRef value = arg->getValue(); 3692 if (Opts.ObjCRuntime.tryParse(value)) 3693 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3694 } 3695 3696 if (Args.hasArg(OPT_fobjc_gc_only)) 3697 Opts.setGC(LangOptions::GCOnly); 3698 else if (Args.hasArg(OPT_fobjc_gc)) 3699 Opts.setGC(LangOptions::HybridGC); 3700 else if (Args.hasArg(OPT_fobjc_arc)) { 3701 Opts.ObjCAutoRefCount = 1; 3702 if (!Opts.ObjCRuntime.allowsARC()) 3703 Diags.Report(diag::err_arc_unsupported_on_runtime); 3704 } 3705 3706 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3707 // whether the feature is actually enabled. This is predominantly 3708 // determined by -fobjc-runtime, but we allow it to be overridden 3709 // from the command line for testing purposes. 3710 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3711 Opts.ObjCWeakRuntime = 1; 3712 else 3713 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3714 3715 // ObjCWeak determines whether __weak is actually enabled. 3716 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3717 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3718 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3719 assert(!Opts.ObjCWeak); 3720 } else if (Opts.getGC() != LangOptions::NonGC) { 3721 Diags.Report(diag::err_objc_weak_with_gc); 3722 } else if (!Opts.ObjCWeakRuntime) { 3723 Diags.Report(diag::err_objc_weak_unsupported); 3724 } else { 3725 Opts.ObjCWeak = 1; 3726 } 3727 } else if (Opts.ObjCAutoRefCount) { 3728 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3729 } 3730 3731 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3732 Opts.ObjCSubscriptingLegacyRuntime = 3733 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3734 } 3735 3736 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3737 // Check that the version has 1 to 3 components and the minor and patch 3738 // versions fit in two decimal digits. 3739 VersionTuple GNUCVer; 3740 bool Invalid = GNUCVer.tryParse(A->getValue()); 3741 unsigned Major = GNUCVer.getMajor(); 3742 unsigned Minor = GNUCVer.getMinor().value_or(0); 3743 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3744 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3745 Diags.Report(diag::err_drv_invalid_value) 3746 << A->getAsString(Args) << A->getValue(); 3747 } 3748 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3749 } 3750 3751 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3752 Opts.IgnoreXCOFFVisibility = 1; 3753 3754 if (Args.hasArg(OPT_ftrapv)) { 3755 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3756 // Set the handler, if one is specified. 3757 Opts.OverflowHandler = 3758 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3759 } 3760 else if (Args.hasArg(OPT_fwrapv)) 3761 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3762 3763 Opts.MSCompatibilityVersion = 0; 3764 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3765 VersionTuple VT; 3766 if (VT.tryParse(A->getValue())) 3767 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3768 << A->getValue(); 3769 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3770 VT.getMinor().value_or(0) * 100000 + 3771 VT.getSubminor().value_or(0); 3772 } 3773 3774 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3775 // is specified, or -std is set to a conforming mode. 3776 // Trigraphs are disabled by default in c++1z onwards. 3777 // For z/OS, trigraphs are enabled by default (without regard to the above). 3778 Opts.Trigraphs = 3779 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3780 Opts.Trigraphs = 3781 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3782 3783 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3784 && Opts.OpenCLVersion == 200); 3785 3786 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3787 Opts.SYCLIsDevice || 3788 Args.hasArg(OPT_fconvergent_functions); 3789 3790 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3791 if (!Opts.NoBuiltin) 3792 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3793 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3794 if (A->getOption().matches(options::OPT_mlong_double_64)) 3795 Opts.LongDoubleSize = 64; 3796 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3797 Opts.LongDoubleSize = 80; 3798 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3799 Opts.LongDoubleSize = 128; 3800 else 3801 Opts.LongDoubleSize = 0; 3802 } 3803 if (Opts.FastRelaxedMath) 3804 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3805 3806 llvm::sort(Opts.ModuleFeatures); 3807 3808 // -mrtd option 3809 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3810 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3811 Diags.Report(diag::err_drv_argument_not_allowed_with) 3812 << A->getSpelling() << "-fdefault-calling-conv"; 3813 else { 3814 if (T.getArch() != llvm::Triple::x86) 3815 Diags.Report(diag::err_drv_argument_not_allowed_with) 3816 << A->getSpelling() << T.getTriple(); 3817 else 3818 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3819 } 3820 } 3821 3822 // Check if -fopenmp is specified and set default version to 5.0. 3823 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3824 // Check if -fopenmp-simd is specified. 3825 bool IsSimdSpecified = 3826 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3827 /*Default=*/false); 3828 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3829 Opts.OpenMPUseTLS = 3830 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3831 Opts.OpenMPIsDevice = 3832 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3833 Opts.OpenMPIRBuilder = 3834 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3835 bool IsTargetSpecified = 3836 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3837 3838 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3839 3840 if (Opts.OpenMP || Opts.OpenMPSimd) { 3841 if (int Version = getLastArgIntValue( 3842 Args, OPT_fopenmp_version_EQ, 3843 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3844 Opts.OpenMP = Version; 3845 // Provide diagnostic when a given target is not expected to be an OpenMP 3846 // device or host. 3847 if (!Opts.OpenMPIsDevice) { 3848 switch (T.getArch()) { 3849 default: 3850 break; 3851 // Add unsupported host targets here: 3852 case llvm::Triple::nvptx: 3853 case llvm::Triple::nvptx64: 3854 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3855 break; 3856 } 3857 } 3858 } 3859 3860 // Set the flag to prevent the implementation from emitting device exception 3861 // handling code for those requiring so. 3862 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3863 Opts.OpenCLCPlusPlus) { 3864 3865 Opts.Exceptions = 0; 3866 Opts.CXXExceptions = 0; 3867 } 3868 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3869 Opts.OpenMPCUDANumSMs = 3870 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3871 Opts.OpenMPCUDANumSMs, Diags); 3872 Opts.OpenMPCUDABlocksPerSM = 3873 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3874 Opts.OpenMPCUDABlocksPerSM, Diags); 3875 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3876 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3877 Opts.OpenMPCUDAReductionBufNum, Diags); 3878 } 3879 3880 // Set the value of the debugging flag used in the new offloading device RTL. 3881 // Set either by a specific value or to a default if not specified. 3882 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3883 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3884 Opts.OpenMPTargetDebug = getLastArgIntValue( 3885 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3886 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3887 Opts.OpenMPTargetDebug = 1; 3888 } 3889 3890 if (Opts.OpenMPIsDevice) { 3891 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3892 Opts.OpenMPTeamSubscription = true; 3893 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3894 Opts.OpenMPThreadSubscription = true; 3895 } 3896 3897 // Get the OpenMP target triples if any. 3898 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3899 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3900 auto getArchPtrSize = [](const llvm::Triple &T) { 3901 if (T.isArch16Bit()) 3902 return Arch16Bit; 3903 if (T.isArch32Bit()) 3904 return Arch32Bit; 3905 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3906 return Arch64Bit; 3907 }; 3908 3909 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3910 llvm::Triple TT(A->getValue(i)); 3911 3912 if (TT.getArch() == llvm::Triple::UnknownArch || 3913 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3914 TT.getArch() == llvm::Triple::nvptx || 3915 TT.getArch() == llvm::Triple::nvptx64 || 3916 TT.getArch() == llvm::Triple::amdgcn || 3917 TT.getArch() == llvm::Triple::x86 || 3918 TT.getArch() == llvm::Triple::x86_64)) 3919 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3920 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3921 Diags.Report(diag::err_drv_incompatible_omp_arch) 3922 << A->getValue(i) << T.str(); 3923 else 3924 Opts.OMPTargetTriples.push_back(TT); 3925 } 3926 } 3927 3928 // Get OpenMP host file path if any and report if a non existent file is 3929 // found 3930 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3931 Opts.OMPHostIRFile = A->getValue(); 3932 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3933 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3934 << Opts.OMPHostIRFile; 3935 } 3936 3937 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3938 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3939 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3940 3941 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3942 Opts.OpenMPCUDAForceFullRuntime = 3943 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3944 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3945 3946 // FIXME: Eliminate this dependency. 3947 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3948 OptSize = getOptimizationLevelSize(Args); 3949 Opts.Optimize = Opt != 0; 3950 Opts.OptimizeSize = OptSize != 0; 3951 3952 // This is the __NO_INLINE__ define, which just depends on things like the 3953 // optimization level and -fno-inline, not actually whether the backend has 3954 // inlining enabled. 3955 Opts.NoInlineDefine = !Opts.Optimize; 3956 if (Arg *InlineArg = Args.getLastArg( 3957 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3958 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3959 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3960 Opts.NoInlineDefine = true; 3961 3962 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3963 StringRef Val = A->getValue(); 3964 if (Val == "fast") 3965 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3966 else if (Val == "on") 3967 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3968 else if (Val == "off") 3969 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3970 else if (Val == "fast-honor-pragmas") 3971 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3972 else 3973 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3974 } 3975 3976 // Parse -fsanitize= arguments. 3977 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3978 Diags, Opts.Sanitize); 3979 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3980 std::vector<std::string> systemIgnorelists = 3981 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3982 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3983 systemIgnorelists.begin(), 3984 systemIgnorelists.end()); 3985 3986 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3987 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3988 3989 StringRef Ver = A->getValue(); 3990 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3991 unsigned Major, Minor = 0; 3992 3993 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3994 // y or y.0 (4 <= y <= current version). 3995 if (!VerParts.first.startswith("0") && 3996 !VerParts.first.getAsInteger(10, Major) && 3997 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3998 (Major == 3 ? VerParts.second.size() == 1 && 3999 !VerParts.second.getAsInteger(10, Minor) 4000 : VerParts.first.size() == Ver.size() || 4001 VerParts.second == "0")) { 4002 // Got a valid version number. 4003 if (Major == 3 && Minor <= 8) 4004 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4005 else if (Major <= 4) 4006 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4007 else if (Major <= 6) 4008 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4009 else if (Major <= 7) 4010 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4011 else if (Major <= 9) 4012 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4013 else if (Major <= 11) 4014 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4015 else if (Major <= 12) 4016 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4017 else if (Major <= 14) 4018 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4019 else if (Major <= 15) 4020 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4021 } else if (Ver != "latest") { 4022 Diags.Report(diag::err_drv_invalid_value) 4023 << A->getAsString(Args) << A->getValue(); 4024 } 4025 } 4026 4027 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4028 StringRef SignScope = A->getValue(); 4029 4030 if (SignScope.equals_insensitive("none")) 4031 Opts.setSignReturnAddressScope( 4032 LangOptions::SignReturnAddressScopeKind::None); 4033 else if (SignScope.equals_insensitive("all")) 4034 Opts.setSignReturnAddressScope( 4035 LangOptions::SignReturnAddressScopeKind::All); 4036 else if (SignScope.equals_insensitive("non-leaf")) 4037 Opts.setSignReturnAddressScope( 4038 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4039 else 4040 Diags.Report(diag::err_drv_invalid_value) 4041 << A->getAsString(Args) << SignScope; 4042 4043 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4044 StringRef SignKey = A->getValue(); 4045 if (!SignScope.empty() && !SignKey.empty()) { 4046 if (SignKey.equals_insensitive("a_key")) 4047 Opts.setSignReturnAddressKey( 4048 LangOptions::SignReturnAddressKeyKind::AKey); 4049 else if (SignKey.equals_insensitive("b_key")) 4050 Opts.setSignReturnAddressKey( 4051 LangOptions::SignReturnAddressKeyKind::BKey); 4052 else 4053 Diags.Report(diag::err_drv_invalid_value) 4054 << A->getAsString(Args) << SignKey; 4055 } 4056 } 4057 } 4058 4059 // The value can be empty, which indicates the system default should be used. 4060 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4061 if (!CXXABI.empty()) { 4062 if (!TargetCXXABI::isABI(CXXABI)) { 4063 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4064 } else { 4065 auto Kind = TargetCXXABI::getKind(CXXABI); 4066 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4067 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4068 else 4069 Opts.CXXABI = Kind; 4070 } 4071 } 4072 4073 Opts.RelativeCXXABIVTables = 4074 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4075 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4076 TargetCXXABI::usesRelativeVTables(T)); 4077 4078 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4079 auto Split = StringRef(A).split('='); 4080 Opts.MacroPrefixMap.insert( 4081 {std::string(Split.first), std::string(Split.second)}); 4082 } 4083 4084 Opts.UseTargetPathSeparator = 4085 !Args.getLastArg(OPT_fno_file_reproducible) && 4086 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4087 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4088 Args.getLastArg(OPT_ffile_reproducible)); 4089 4090 // Error if -mvscale-min is unbounded. 4091 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4092 unsigned VScaleMin; 4093 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4094 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4095 } 4096 4097 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4098 std::ifstream SeedFile(A->getValue(0)); 4099 4100 if (!SeedFile.is_open()) 4101 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4102 << A->getValue(0); 4103 4104 std::getline(SeedFile, Opts.RandstructSeed); 4105 } 4106 4107 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4108 Opts.RandstructSeed = A->getValue(0); 4109 4110 return Diags.getNumErrors() == NumErrorsBefore; 4111 } 4112 4113 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4114 switch (Action) { 4115 case frontend::ASTDeclList: 4116 case frontend::ASTDump: 4117 case frontend::ASTPrint: 4118 case frontend::ASTView: 4119 case frontend::EmitAssembly: 4120 case frontend::EmitBC: 4121 case frontend::EmitHTML: 4122 case frontend::EmitLLVM: 4123 case frontend::EmitLLVMOnly: 4124 case frontend::EmitCodeGenOnly: 4125 case frontend::EmitObj: 4126 case frontend::ExtractAPI: 4127 case frontend::FixIt: 4128 case frontend::GenerateModule: 4129 case frontend::GenerateModuleInterface: 4130 case frontend::GenerateHeaderModule: 4131 case frontend::GenerateHeaderUnit: 4132 case frontend::GeneratePCH: 4133 case frontend::GenerateInterfaceStubs: 4134 case frontend::ParseSyntaxOnly: 4135 case frontend::ModuleFileInfo: 4136 case frontend::VerifyPCH: 4137 case frontend::PluginAction: 4138 case frontend::RewriteObjC: 4139 case frontend::RewriteTest: 4140 case frontend::RunAnalysis: 4141 case frontend::TemplightDump: 4142 case frontend::MigrateSource: 4143 return false; 4144 4145 case frontend::DumpCompilerOptions: 4146 case frontend::DumpRawTokens: 4147 case frontend::DumpTokens: 4148 case frontend::InitOnly: 4149 case frontend::PrintPreamble: 4150 case frontend::PrintPreprocessedInput: 4151 case frontend::RewriteMacros: 4152 case frontend::RunPreprocessorOnly: 4153 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4154 return true; 4155 } 4156 llvm_unreachable("invalid frontend action"); 4157 } 4158 4159 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4160 SmallVectorImpl<const char *> &Args, 4161 CompilerInvocation::StringAllocator SA, 4162 const LangOptions &LangOpts, 4163 const FrontendOptions &FrontendOpts, 4164 const CodeGenOptions &CodeGenOpts) { 4165 PreprocessorOptions *PreprocessorOpts = &Opts; 4166 4167 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4168 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4169 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4170 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4171 MERGER, EXTRACTOR, TABLE_INDEX) \ 4172 GENERATE_OPTION_WITH_MARSHALLING( \ 4173 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4174 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4175 #include "clang/Driver/Options.inc" 4176 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4177 4178 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4179 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4180 4181 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4182 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4183 4184 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4185 GenerateArg(Args, OPT_preamble_bytes_EQ, 4186 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4187 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4188 SA); 4189 4190 for (const auto &M : Opts.Macros) { 4191 // Don't generate __CET__ macro definitions. They are implied by the 4192 // -fcf-protection option that is generated elsewhere. 4193 if (M.first == "__CET__=1" && !M.second && 4194 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4195 continue; 4196 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4197 !CodeGenOpts.CFProtectionBranch) 4198 continue; 4199 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4200 CodeGenOpts.CFProtectionBranch) 4201 continue; 4202 4203 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4204 } 4205 4206 for (const auto &I : Opts.Includes) { 4207 // Don't generate OpenCL includes. They are implied by other flags that are 4208 // generated elsewhere. 4209 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4210 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4211 I == "opencl-c.h")) 4212 continue; 4213 // Don't generate HLSL includes. They are implied by other flags that are 4214 // generated elsewhere. 4215 if (LangOpts.HLSL && I == "hlsl.h") 4216 continue; 4217 4218 GenerateArg(Args, OPT_include, I, SA); 4219 } 4220 4221 for (const auto &CI : Opts.ChainedIncludes) 4222 GenerateArg(Args, OPT_chain_include, CI, SA); 4223 4224 for (const auto &RF : Opts.RemappedFiles) 4225 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4226 4227 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4228 // generated elsewhere. 4229 } 4230 4231 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4232 DiagnosticsEngine &Diags, 4233 frontend::ActionKind Action, 4234 const FrontendOptions &FrontendOpts) { 4235 unsigned NumErrorsBefore = Diags.getNumErrors(); 4236 4237 PreprocessorOptions *PreprocessorOpts = &Opts; 4238 4239 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4240 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4241 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4242 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4243 MERGER, EXTRACTOR, TABLE_INDEX) \ 4244 PARSE_OPTION_WITH_MARSHALLING( \ 4245 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4246 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4247 #include "clang/Driver/Options.inc" 4248 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4249 4250 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4251 Args.hasArg(OPT_pch_through_hdrstop_use); 4252 4253 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4254 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4255 4256 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4257 StringRef Value(A->getValue()); 4258 size_t Comma = Value.find(','); 4259 unsigned Bytes = 0; 4260 unsigned EndOfLine = 0; 4261 4262 if (Comma == StringRef::npos || 4263 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4264 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4265 Diags.Report(diag::err_drv_preamble_format); 4266 else { 4267 Opts.PrecompiledPreambleBytes.first = Bytes; 4268 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4269 } 4270 } 4271 4272 // Add the __CET__ macro if a CFProtection option is set. 4273 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4274 StringRef Name = A->getValue(); 4275 if (Name == "branch") 4276 Opts.addMacroDef("__CET__=1"); 4277 else if (Name == "return") 4278 Opts.addMacroDef("__CET__=2"); 4279 else if (Name == "full") 4280 Opts.addMacroDef("__CET__=3"); 4281 } 4282 4283 // Add macros from the command line. 4284 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4285 if (A->getOption().matches(OPT_D)) 4286 Opts.addMacroDef(A->getValue()); 4287 else 4288 Opts.addMacroUndef(A->getValue()); 4289 } 4290 4291 // Add the ordered list of -includes. 4292 for (const auto *A : Args.filtered(OPT_include)) 4293 Opts.Includes.emplace_back(A->getValue()); 4294 4295 for (const auto *A : Args.filtered(OPT_chain_include)) 4296 Opts.ChainedIncludes.emplace_back(A->getValue()); 4297 4298 for (const auto *A : Args.filtered(OPT_remap_file)) { 4299 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4300 4301 if (Split.second.empty()) { 4302 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4303 continue; 4304 } 4305 4306 Opts.addRemappedFile(Split.first, Split.second); 4307 } 4308 4309 // Always avoid lexing editor placeholders when we're just running the 4310 // preprocessor as we never want to emit the 4311 // "editor placeholder in source file" error in PP only mode. 4312 if (isStrictlyPreprocessorAction(Action)) 4313 Opts.LexEditorPlaceholders = false; 4314 4315 return Diags.getNumErrors() == NumErrorsBefore; 4316 } 4317 4318 static void GeneratePreprocessorOutputArgs( 4319 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4320 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4321 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4322 4323 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4324 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4325 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4326 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4327 MERGER, EXTRACTOR, TABLE_INDEX) \ 4328 GENERATE_OPTION_WITH_MARSHALLING( \ 4329 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4330 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4331 #include "clang/Driver/Options.inc" 4332 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4333 4334 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4335 if (Generate_dM) 4336 GenerateArg(Args, OPT_dM, SA); 4337 if (!Generate_dM && Opts.ShowMacros) 4338 GenerateArg(Args, OPT_dD, SA); 4339 if (Opts.DirectivesOnly) 4340 GenerateArg(Args, OPT_fdirectives_only, SA); 4341 } 4342 4343 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4344 ArgList &Args, DiagnosticsEngine &Diags, 4345 frontend::ActionKind Action) { 4346 unsigned NumErrorsBefore = Diags.getNumErrors(); 4347 4348 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4349 4350 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4351 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4352 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4353 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4354 MERGER, EXTRACTOR, TABLE_INDEX) \ 4355 PARSE_OPTION_WITH_MARSHALLING( \ 4356 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4357 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4358 #include "clang/Driver/Options.inc" 4359 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4360 4361 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4362 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4363 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4364 4365 return Diags.getNumErrors() == NumErrorsBefore; 4366 } 4367 4368 static void GenerateTargetArgs(const TargetOptions &Opts, 4369 SmallVectorImpl<const char *> &Args, 4370 CompilerInvocation::StringAllocator SA) { 4371 const TargetOptions *TargetOpts = &Opts; 4372 #define TARGET_OPTION_WITH_MARSHALLING( \ 4373 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4374 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4375 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4376 MERGER, EXTRACTOR, TABLE_INDEX) \ 4377 GENERATE_OPTION_WITH_MARSHALLING( \ 4378 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4379 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4380 #include "clang/Driver/Options.inc" 4381 #undef TARGET_OPTION_WITH_MARSHALLING 4382 4383 if (!Opts.SDKVersion.empty()) 4384 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4385 SA); 4386 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4387 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4388 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4389 } 4390 4391 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4392 DiagnosticsEngine &Diags) { 4393 unsigned NumErrorsBefore = Diags.getNumErrors(); 4394 4395 TargetOptions *TargetOpts = &Opts; 4396 4397 #define TARGET_OPTION_WITH_MARSHALLING( \ 4398 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4399 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4400 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4401 MERGER, EXTRACTOR, TABLE_INDEX) \ 4402 PARSE_OPTION_WITH_MARSHALLING( \ 4403 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4404 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4405 #include "clang/Driver/Options.inc" 4406 #undef TARGET_OPTION_WITH_MARSHALLING 4407 4408 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4409 llvm::VersionTuple Version; 4410 if (Version.tryParse(A->getValue())) 4411 Diags.Report(diag::err_drv_invalid_value) 4412 << A->getAsString(Args) << A->getValue(); 4413 else 4414 Opts.SDKVersion = Version; 4415 } 4416 if (Arg *A = 4417 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4418 llvm::VersionTuple Version; 4419 if (Version.tryParse(A->getValue())) 4420 Diags.Report(diag::err_drv_invalid_value) 4421 << A->getAsString(Args) << A->getValue(); 4422 else 4423 Opts.DarwinTargetVariantSDKVersion = Version; 4424 } 4425 4426 return Diags.getNumErrors() == NumErrorsBefore; 4427 } 4428 4429 bool CompilerInvocation::CreateFromArgsImpl( 4430 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4431 DiagnosticsEngine &Diags, const char *Argv0) { 4432 unsigned NumErrorsBefore = Diags.getNumErrors(); 4433 4434 // Parse the arguments. 4435 const OptTable &Opts = getDriverOptTable(); 4436 const unsigned IncludedFlagsBitmask = options::CC1Option; 4437 unsigned MissingArgIndex, MissingArgCount; 4438 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4439 MissingArgCount, IncludedFlagsBitmask); 4440 LangOptions &LangOpts = *Res.getLangOpts(); 4441 4442 // Check for missing argument error. 4443 if (MissingArgCount) 4444 Diags.Report(diag::err_drv_missing_argument) 4445 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4446 4447 // Issue errors on unknown arguments. 4448 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4449 auto ArgString = A->getAsString(Args); 4450 std::string Nearest; 4451 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4452 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4453 else 4454 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4455 << ArgString << Nearest; 4456 } 4457 4458 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4459 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4460 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4461 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4462 /*DefaultDiagColor=*/false); 4463 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4464 // FIXME: We shouldn't have to pass the DashX option around here 4465 InputKind DashX = Res.getFrontendOpts().DashX; 4466 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4467 llvm::Triple T(Res.getTargetOpts().Triple); 4468 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4469 Res.getFileSystemOpts().WorkingDir); 4470 4471 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4472 Diags); 4473 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4474 LangOpts.ObjCExceptions = 1; 4475 4476 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4477 if (Warning == "misexpect" && 4478 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4479 Res.getCodeGenOpts().MisExpect = true; 4480 } 4481 } 4482 4483 if (LangOpts.CUDA) { 4484 // During CUDA device-side compilation, the aux triple is the 4485 // triple used for host compilation. 4486 if (LangOpts.CUDAIsDevice) 4487 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4488 } 4489 4490 // Set the triple of the host for OpenMP device compile. 4491 if (LangOpts.OpenMPIsDevice) 4492 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4493 4494 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4495 Res.getFrontendOpts().OutputFile, LangOpts); 4496 4497 // FIXME: Override value name discarding when asan or msan is used because the 4498 // backend passes depend on the name of the alloca in order to print out 4499 // names. 4500 Res.getCodeGenOpts().DiscardValueNames &= 4501 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4502 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4503 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4504 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4505 4506 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4507 Res.getFrontendOpts().ProgramAction, 4508 Res.getFrontendOpts()); 4509 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4510 Res.getFrontendOpts().ProgramAction); 4511 4512 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4513 Res.getFrontendOpts().ProgramAction, 4514 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4515 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4516 Res.getDependencyOutputOpts().Targets.empty()) 4517 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4518 4519 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4520 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4521 !Res.getLangOpts()->Sanitize.empty()) { 4522 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4523 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4524 } 4525 4526 // Store the command-line for using in the CodeView backend. 4527 Res.getCodeGenOpts().Argv0 = Argv0; 4528 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4529 4530 FixupInvocation(Res, Diags, Args, DashX); 4531 4532 return Diags.getNumErrors() == NumErrorsBefore; 4533 } 4534 4535 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4536 ArrayRef<const char *> CommandLineArgs, 4537 DiagnosticsEngine &Diags, 4538 const char *Argv0) { 4539 CompilerInvocation DummyInvocation; 4540 4541 return RoundTrip( 4542 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4543 DiagnosticsEngine &Diags, const char *Argv0) { 4544 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4545 }, 4546 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4547 StringAllocator SA) { 4548 Args.push_back("-cc1"); 4549 Invocation.generateCC1CommandLine(Args, SA); 4550 }, 4551 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4552 } 4553 4554 std::string CompilerInvocation::getModuleHash() const { 4555 // FIXME: Consider using SHA1 instead of MD5. 4556 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4557 4558 // Note: For QoI reasons, the things we use as a hash here should all be 4559 // dumped via the -module-info flag. 4560 4561 // Start the signature with the compiler version. 4562 HBuilder.add(getClangFullRepositoryVersion()); 4563 4564 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4565 // and getClangFullRepositoryVersion() doesn't include git revision. 4566 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4567 4568 // Extend the signature with the language options 4569 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4570 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4571 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4572 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4573 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4574 #include "clang/Basic/LangOptions.def" 4575 4576 HBuilder.addRange(LangOpts->ModuleFeatures); 4577 4578 HBuilder.add(LangOpts->ObjCRuntime); 4579 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4580 4581 // Extend the signature with the target options. 4582 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4583 TargetOpts->ABI); 4584 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4585 4586 // Extend the signature with preprocessor options. 4587 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4588 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4589 4590 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4591 for (const auto &Macro : getPreprocessorOpts().Macros) { 4592 // If we're supposed to ignore this macro for the purposes of modules, 4593 // don't put it into the hash. 4594 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4595 // Check whether we're ignoring this macro. 4596 StringRef MacroDef = Macro.first; 4597 if (hsOpts.ModulesIgnoreMacros.count( 4598 llvm::CachedHashString(MacroDef.split('=').first))) 4599 continue; 4600 } 4601 4602 HBuilder.add(Macro); 4603 } 4604 4605 // Extend the signature with the sysroot and other header search options. 4606 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4607 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4608 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4609 hsOpts.ModulesValidateDiagnosticOptions); 4610 HBuilder.add(hsOpts.ResourceDir); 4611 4612 if (hsOpts.ModulesStrictContextHash) { 4613 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4614 HBuilder.addRange(hsOpts.UserEntries); 4615 4616 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4617 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4618 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4619 HBuilder.add(diagOpts.get##Name()); 4620 #include "clang/Basic/DiagnosticOptions.def" 4621 #undef DIAGOPT 4622 #undef ENUM_DIAGOPT 4623 } 4624 4625 // Extend the signature with the user build path. 4626 HBuilder.add(hsOpts.ModuleUserBuildPath); 4627 4628 // Extend the signature with the module file extensions. 4629 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4630 ext->hashExtension(HBuilder); 4631 4632 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4633 // affects the debug info in the PCM. 4634 if (getCodeGenOpts().DebugTypeExtRefs) 4635 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4636 4637 // Extend the signature with the enabled sanitizers, if at least one is 4638 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4639 SanitizerSet SanHash = LangOpts->Sanitize; 4640 SanHash.clear(getPPTransparentSanitizers()); 4641 if (!SanHash.empty()) 4642 HBuilder.add(SanHash.Mask); 4643 4644 llvm::MD5::MD5Result Result; 4645 HBuilder.getHasher().final(Result); 4646 uint64_t Hash = Result.high() ^ Result.low(); 4647 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4648 } 4649 4650 void CompilerInvocation::generateCC1CommandLine( 4651 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4652 llvm::Triple T(TargetOpts->Triple); 4653 4654 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4655 GenerateMigratorArgs(MigratorOpts, Args, SA); 4656 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4657 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4658 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4659 GenerateTargetArgs(*TargetOpts, Args, SA); 4660 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4661 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4662 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4663 &*LangOpts); 4664 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4665 CodeGenOpts); 4666 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4667 FrontendOpts.ProgramAction); 4668 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4669 } 4670 4671 std::vector<std::string> CompilerInvocation::getCC1CommandLine() const { 4672 // Set up string allocator. 4673 llvm::BumpPtrAllocator Alloc; 4674 llvm::StringSaver Strings(Alloc); 4675 auto SA = [&Strings](const Twine &Arg) { return Strings.save(Arg).data(); }; 4676 4677 // Synthesize full command line from the CompilerInvocation, including "-cc1". 4678 SmallVector<const char *, 32> Args{"-cc1"}; 4679 generateCC1CommandLine(Args, SA); 4680 4681 // Convert arguments to the return type. 4682 return std::vector<std::string>{Args.begin(), Args.end()}; 4683 } 4684 4685 void CompilerInvocation::resetNonModularOptions() { 4686 getLangOpts()->resetNonModularOptions(); 4687 getPreprocessorOpts().resetNonModularOptions(); 4688 } 4689 4690 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4691 getLangOpts()->ImplicitModules = false; 4692 getHeaderSearchOpts().ImplicitModuleMaps = false; 4693 getHeaderSearchOpts().ModuleCachePath.clear(); 4694 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4695 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4696 // The specific values we canonicalize to for pruning don't affect behaviour, 4697 /// so use the default values so they may be dropped from the command-line. 4698 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4699 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 4700 } 4701 4702 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4703 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4704 DiagnosticsEngine &Diags) { 4705 return createVFSFromCompilerInvocation(CI, Diags, 4706 llvm::vfs::getRealFileSystem()); 4707 } 4708 4709 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4710 clang::createVFSFromCompilerInvocation( 4711 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4712 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4713 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4714 return BaseFS; 4715 4716 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4717 // earlier vfs files are on the bottom 4718 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4719 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4720 Result->getBufferForFile(File); 4721 if (!Buffer) { 4722 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4723 continue; 4724 } 4725 4726 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4727 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4728 /*DiagContext*/ nullptr, Result); 4729 if (!FS) { 4730 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4731 continue; 4732 } 4733 4734 Result = FS; 4735 } 4736 return Result; 4737 } 4738