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 DiagnosticsEngine &Diags) { 1298 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1299 if (auto E = ReaderOrErr.takeError()) { 1300 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1301 "Error in reading profile %0: %1"); 1302 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1303 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1304 }); 1305 return; 1306 } 1307 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1308 std::move(ReaderOrErr.get()); 1309 // Currently memprof profiles are only added at the IR level. Mark the profile 1310 // type as IR in that case as well and the subsequent matching needs to detect 1311 // which is available (might be one or both). 1312 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1313 if (PGOReader->hasCSIRLevelProfile()) 1314 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1315 else 1316 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1317 } else 1318 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1319 } 1320 1321 void CompilerInvocation::GenerateCodeGenArgs( 1322 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1323 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1324 const LangOptions *LangOpts) { 1325 const CodeGenOptions &CodeGenOpts = Opts; 1326 1327 if (Opts.OptimizationLevel == 0) 1328 GenerateArg(Args, OPT_O0, SA); 1329 else 1330 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1331 1332 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1333 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1334 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1335 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1336 MERGER, EXTRACTOR, TABLE_INDEX) \ 1337 GENERATE_OPTION_WITH_MARSHALLING( \ 1338 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1339 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1340 #include "clang/Driver/Options.inc" 1341 #undef CODEGEN_OPTION_WITH_MARSHALLING 1342 1343 if (Opts.OptimizationLevel > 0) { 1344 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1345 GenerateArg(Args, OPT_finline_functions, SA); 1346 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1347 GenerateArg(Args, OPT_finline_hint_functions, SA); 1348 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1349 GenerateArg(Args, OPT_fno_inline, SA); 1350 } 1351 1352 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1353 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1354 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1355 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1356 1357 Optional<StringRef> DebugInfoVal; 1358 switch (Opts.DebugInfo) { 1359 case codegenoptions::DebugLineTablesOnly: 1360 DebugInfoVal = "line-tables-only"; 1361 break; 1362 case codegenoptions::DebugDirectivesOnly: 1363 DebugInfoVal = "line-directives-only"; 1364 break; 1365 case codegenoptions::DebugInfoConstructor: 1366 DebugInfoVal = "constructor"; 1367 break; 1368 case codegenoptions::LimitedDebugInfo: 1369 DebugInfoVal = "limited"; 1370 break; 1371 case codegenoptions::FullDebugInfo: 1372 DebugInfoVal = "standalone"; 1373 break; 1374 case codegenoptions::UnusedTypeInfo: 1375 DebugInfoVal = "unused-types"; 1376 break; 1377 case codegenoptions::NoDebugInfo: // default value 1378 DebugInfoVal = None; 1379 break; 1380 case codegenoptions::LocTrackingOnly: // implied value 1381 DebugInfoVal = None; 1382 break; 1383 } 1384 if (DebugInfoVal) 1385 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1386 1387 for (const auto &Prefix : Opts.DebugPrefixMap) 1388 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1389 Prefix.first + "=" + Prefix.second, SA); 1390 1391 for (const auto &Prefix : Opts.CoveragePrefixMap) 1392 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1393 Prefix.first + "=" + Prefix.second, SA); 1394 1395 if (Opts.NewStructPathTBAA) 1396 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1397 1398 if (Opts.OptimizeSize == 1) 1399 GenerateArg(Args, OPT_O, "s", SA); 1400 else if (Opts.OptimizeSize == 2) 1401 GenerateArg(Args, OPT_O, "z", SA); 1402 1403 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1404 // -ffreestanding. We'll consider that when generating them. 1405 1406 // NoBuiltinFuncs are generated by LangOptions. 1407 1408 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1409 GenerateArg(Args, OPT_funroll_loops, SA); 1410 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1411 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1412 1413 if (!Opts.BinutilsVersion.empty()) 1414 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1415 1416 if (Opts.DebugNameTable == 1417 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1418 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1419 else if (Opts.DebugNameTable == 1420 static_cast<unsigned>( 1421 llvm::DICompileUnit::DebugNameTableKind::Default)) 1422 GenerateArg(Args, OPT_gpubnames, SA); 1423 1424 auto TNK = Opts.getDebugSimpleTemplateNames(); 1425 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1426 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1427 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1428 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1429 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1430 } 1431 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1432 // it or PGOUseInstrumentor. 1433 1434 if (Opts.TimePasses) { 1435 if (Opts.TimePassesPerRun) 1436 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1437 else 1438 GenerateArg(Args, OPT_ftime_report, SA); 1439 } 1440 1441 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1442 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1443 1444 if (Opts.PrepareForThinLTO) 1445 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1446 1447 if (!Opts.ThinLTOIndexFile.empty()) 1448 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1449 1450 if (Opts.SaveTempsFilePrefix == OutputFile) 1451 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1452 1453 StringRef MemProfileBasename("memprof.profraw"); 1454 if (!Opts.MemoryProfileOutput.empty()) { 1455 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1456 GenerateArg(Args, OPT_fmemory_profile, SA); 1457 } else { 1458 size_t ArgLength = 1459 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1460 GenerateArg(Args, OPT_fmemory_profile_EQ, 1461 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1462 } 1463 } 1464 1465 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1466 GenerateArg(Args, OPT_coverage_version_EQ, 1467 StringRef(Opts.CoverageVersion, 4), SA); 1468 1469 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1470 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1471 // won't be generated.) 1472 1473 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1474 std::string InstrBundle = 1475 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1476 if (!InstrBundle.empty()) 1477 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1478 } 1479 1480 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1481 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1482 else if (Opts.CFProtectionReturn) 1483 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1484 else if (Opts.CFProtectionBranch) 1485 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1486 1487 if (Opts.IBTSeal) 1488 GenerateArg(Args, OPT_mibt_seal, SA); 1489 1490 if (Opts.FunctionReturnThunks) 1491 GenerateArg(Args, OPT_mfunction_return_EQ, "thunk-extern", SA); 1492 1493 for (const auto &F : Opts.LinkBitcodeFiles) { 1494 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1495 F.PropagateAttrs && F.Internalize; 1496 GenerateArg(Args, 1497 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1498 F.Filename, SA); 1499 } 1500 1501 GenerateArg( 1502 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1503 1504 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1505 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1506 1507 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1508 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1509 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1510 SA); 1511 1512 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1513 OptSpecifier Opt = 1514 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1515 GenerateArg(Args, Opt, SA); 1516 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1517 OptSpecifier Opt = 1518 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1519 GenerateArg(Args, Opt, SA); 1520 } 1521 1522 if (Opts.EnableAIXExtendedAltivecABI) 1523 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1524 1525 if (!Opts.OptRecordPasses.empty()) 1526 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1527 1528 if (!Opts.OptRecordFormat.empty()) 1529 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1530 1531 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1532 Opts.OptimizationRemark); 1533 1534 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1535 Opts.OptimizationRemarkMissed); 1536 1537 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1538 Opts.OptimizationRemarkAnalysis); 1539 1540 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1541 Opts.DiagnosticsHotnessThreshold 1542 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1543 : "auto", 1544 SA); 1545 1546 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1547 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1548 1549 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1550 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1551 1552 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1553 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1554 1555 if (!Opts.EmitVersionIdentMetadata) 1556 GenerateArg(Args, OPT_Qn, SA); 1557 1558 switch (Opts.FiniteLoops) { 1559 case CodeGenOptions::FiniteLoopsKind::Language: 1560 break; 1561 case CodeGenOptions::FiniteLoopsKind::Always: 1562 GenerateArg(Args, OPT_ffinite_loops, SA); 1563 break; 1564 case CodeGenOptions::FiniteLoopsKind::Never: 1565 GenerateArg(Args, OPT_fno_finite_loops, SA); 1566 break; 1567 } 1568 } 1569 1570 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1571 InputKind IK, 1572 DiagnosticsEngine &Diags, 1573 const llvm::Triple &T, 1574 const std::string &OutputFile, 1575 const LangOptions &LangOptsRef) { 1576 unsigned NumErrorsBefore = Diags.getNumErrors(); 1577 1578 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1579 // TODO: This could be done in Driver 1580 unsigned MaxOptLevel = 3; 1581 if (OptimizationLevel > MaxOptLevel) { 1582 // If the optimization level is not supported, fall back on the default 1583 // optimization 1584 Diags.Report(diag::warn_drv_optimization_value) 1585 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1586 OptimizationLevel = MaxOptLevel; 1587 } 1588 Opts.OptimizationLevel = OptimizationLevel; 1589 1590 // The key paths of codegen options defined in Options.td start with 1591 // "CodeGenOpts.". Let's provide the expected variable name and type. 1592 CodeGenOptions &CodeGenOpts = Opts; 1593 // Some codegen options depend on language options. Let's provide the expected 1594 // variable name and type. 1595 const LangOptions *LangOpts = &LangOptsRef; 1596 1597 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1598 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1599 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1600 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1601 MERGER, EXTRACTOR, TABLE_INDEX) \ 1602 PARSE_OPTION_WITH_MARSHALLING( \ 1603 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1604 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1605 #include "clang/Driver/Options.inc" 1606 #undef CODEGEN_OPTION_WITH_MARSHALLING 1607 1608 // At O0 we want to fully disable inlining outside of cases marked with 1609 // 'alwaysinline' that are required for correctness. 1610 if (Opts.OptimizationLevel == 0) { 1611 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1612 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1613 options::OPT_finline_hint_functions, 1614 options::OPT_fno_inline_functions, 1615 options::OPT_fno_inline)) { 1616 // Explicit inlining flags can disable some or all inlining even at 1617 // optimization levels above zero. 1618 if (A->getOption().matches(options::OPT_finline_functions)) 1619 Opts.setInlining(CodeGenOptions::NormalInlining); 1620 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1621 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1622 else 1623 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1624 } else { 1625 Opts.setInlining(CodeGenOptions::NormalInlining); 1626 } 1627 1628 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1629 // -fdirect-access-external-data. 1630 Opts.DirectAccessExternalData = 1631 Args.hasArg(OPT_fdirect_access_external_data) || 1632 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1633 LangOpts->PICLevel == 0); 1634 1635 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1636 unsigned Val = 1637 llvm::StringSwitch<unsigned>(A->getValue()) 1638 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1639 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1640 .Case("constructor", codegenoptions::DebugInfoConstructor) 1641 .Case("limited", codegenoptions::LimitedDebugInfo) 1642 .Case("standalone", codegenoptions::FullDebugInfo) 1643 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1644 .Default(~0U); 1645 if (Val == ~0U) 1646 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1647 << A->getValue(); 1648 else 1649 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1650 } 1651 1652 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1653 // constructor homing, and vice versa for -fno-use-ctor-homing. 1654 if (const Arg *A = 1655 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1656 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1657 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1658 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1659 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1660 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1661 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1662 } 1663 1664 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1665 auto Split = StringRef(Arg).split('='); 1666 Opts.DebugPrefixMap.insert( 1667 {std::string(Split.first), std::string(Split.second)}); 1668 } 1669 1670 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1671 auto Split = StringRef(Arg).split('='); 1672 Opts.CoveragePrefixMap.insert( 1673 {std::string(Split.first), std::string(Split.second)}); 1674 } 1675 1676 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1677 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1678 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1679 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1680 1681 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1682 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1683 Opts.EmitCallSiteInfo = true; 1684 1685 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1686 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1687 << Opts.DIBugsReportFilePath; 1688 Opts.DIBugsReportFilePath = ""; 1689 } 1690 1691 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1692 Args.hasArg(OPT_new_struct_path_tbaa); 1693 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1694 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1695 if (Opts.SimplifyLibCalls) 1696 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1697 Opts.UnrollLoops = 1698 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1699 (Opts.OptimizationLevel > 1)); 1700 Opts.BinutilsVersion = 1701 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1702 1703 Opts.DebugNameTable = static_cast<unsigned>( 1704 Args.hasArg(OPT_ggnu_pubnames) 1705 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1706 : Args.hasArg(OPT_gpubnames) 1707 ? llvm::DICompileUnit::DebugNameTableKind::Default 1708 : llvm::DICompileUnit::DebugNameTableKind::None); 1709 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1710 StringRef Value = A->getValue(); 1711 if (Value != "simple" && Value != "mangled") 1712 Diags.Report(diag::err_drv_unsupported_option_argument) 1713 << A->getOption().getName() << A->getValue(); 1714 Opts.setDebugSimpleTemplateNames( 1715 StringRef(A->getValue()) == "simple" 1716 ? codegenoptions::DebugTemplateNamesKind::Simple 1717 : codegenoptions::DebugTemplateNamesKind::Mangled); 1718 } 1719 1720 if (!Opts.ProfileInstrumentUsePath.empty()) 1721 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath, Diags); 1722 1723 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1724 Opts.TimePasses = true; 1725 1726 // -ftime-report= is only for new pass manager. 1727 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1728 StringRef Val = A->getValue(); 1729 if (Val == "per-pass") 1730 Opts.TimePassesPerRun = false; 1731 else if (Val == "per-pass-run") 1732 Opts.TimePassesPerRun = true; 1733 else 1734 Diags.Report(diag::err_drv_invalid_value) 1735 << A->getAsString(Args) << A->getValue(); 1736 } 1737 } 1738 1739 Opts.PrepareForLTO = false; 1740 Opts.PrepareForThinLTO = false; 1741 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1742 Opts.PrepareForLTO = true; 1743 StringRef S = A->getValue(); 1744 if (S == "thin") 1745 Opts.PrepareForThinLTO = true; 1746 else if (S != "full") 1747 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1748 } 1749 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1750 if (IK.getLanguage() != Language::LLVM_IR) 1751 Diags.Report(diag::err_drv_argument_only_allowed_with) 1752 << A->getAsString(Args) << "-x ir"; 1753 Opts.ThinLTOIndexFile = 1754 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1755 } 1756 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1757 Opts.SaveTempsFilePrefix = 1758 llvm::StringSwitch<std::string>(A->getValue()) 1759 .Case("obj", OutputFile) 1760 .Default(llvm::sys::path::filename(OutputFile).str()); 1761 1762 // The memory profile runtime appends the pid to make this name more unique. 1763 const char *MemProfileBasename = "memprof.profraw"; 1764 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1765 SmallString<128> Path( 1766 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1767 llvm::sys::path::append(Path, MemProfileBasename); 1768 Opts.MemoryProfileOutput = std::string(Path); 1769 } else if (Args.hasArg(OPT_fmemory_profile)) 1770 Opts.MemoryProfileOutput = MemProfileBasename; 1771 1772 memcpy(Opts.CoverageVersion, "408*", 4); 1773 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1774 if (Args.hasArg(OPT_coverage_version_EQ)) { 1775 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1776 if (CoverageVersion.size() != 4) { 1777 Diags.Report(diag::err_drv_invalid_value) 1778 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1779 << CoverageVersion; 1780 } else { 1781 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1782 } 1783 } 1784 } 1785 // FIXME: For backend options that are not yet recorded as function 1786 // attributes in the IR, keep track of them so we can embed them in a 1787 // separate data section and use them when building the bitcode. 1788 for (const auto &A : Args) { 1789 // Do not encode output and input. 1790 if (A->getOption().getID() == options::OPT_o || 1791 A->getOption().getID() == options::OPT_INPUT || 1792 A->getOption().getID() == options::OPT_x || 1793 A->getOption().getID() == options::OPT_fembed_bitcode || 1794 A->getOption().matches(options::OPT_W_Group)) 1795 continue; 1796 ArgStringList ASL; 1797 A->render(Args, ASL); 1798 for (const auto &arg : ASL) { 1799 StringRef ArgStr(arg); 1800 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1801 // using \00 to separate each commandline options. 1802 Opts.CmdArgs.push_back('\0'); 1803 } 1804 } 1805 1806 auto XRayInstrBundles = 1807 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1808 if (XRayInstrBundles.empty()) 1809 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1810 else 1811 for (const auto &A : XRayInstrBundles) 1812 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1813 Diags, Opts.XRayInstrumentationBundle); 1814 1815 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1816 StringRef Name = A->getValue(); 1817 if (Name == "full") { 1818 Opts.CFProtectionReturn = 1; 1819 Opts.CFProtectionBranch = 1; 1820 } else if (Name == "return") 1821 Opts.CFProtectionReturn = 1; 1822 else if (Name == "branch") 1823 Opts.CFProtectionBranch = 1; 1824 else if (Name != "none") 1825 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1826 } 1827 1828 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1829 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1830 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1831 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1832 .Default(llvm::FunctionReturnThunksKind::Invalid); 1833 // SystemZ might want to add support for "expolines." 1834 if (!T.isX86()) 1835 Diags.Report(diag::err_drv_argument_not_allowed_with) 1836 << A->getSpelling() << T.getTriple(); 1837 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1838 Diags.Report(diag::err_drv_invalid_value) 1839 << A->getAsString(Args) << A->getValue(); 1840 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1841 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1842 Diags.Report(diag::err_drv_argument_not_allowed_with) 1843 << A->getAsString(Args) 1844 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1845 else 1846 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1847 } 1848 1849 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1850 Opts.IBTSeal = 1; 1851 1852 for (auto *A : 1853 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1854 CodeGenOptions::BitcodeFileToLink F; 1855 F.Filename = A->getValue(); 1856 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1857 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1858 // When linking CUDA bitcode, propagate function attributes so that 1859 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1860 F.PropagateAttrs = true; 1861 F.Internalize = true; 1862 } 1863 Opts.LinkBitcodeFiles.push_back(F); 1864 } 1865 1866 if (!Args.getLastArg(OPT_femulated_tls) && 1867 !Args.getLastArg(OPT_fno_emulated_tls)) { 1868 Opts.EmulatedTLS = T.hasDefaultEmulatedTLS(); 1869 } 1870 1871 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1872 if (T.isOSAIX()) { 1873 StringRef Name = A->getValue(); 1874 if (Name != "global-dynamic") 1875 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1876 } 1877 } 1878 1879 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1880 StringRef Val = A->getValue(); 1881 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1882 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1883 if (!Opts.FPDenormalMode.isValid()) 1884 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1885 } 1886 1887 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1888 StringRef Val = A->getValue(); 1889 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1890 if (!Opts.FP32DenormalMode.isValid()) 1891 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1892 } 1893 1894 // X86_32 has -fppc-struct-return and -freg-struct-return. 1895 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1896 if (Arg *A = 1897 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1898 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1899 // TODO: We might want to consider enabling these options on AIX in the 1900 // future. 1901 if (T.isOSAIX()) 1902 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1903 << A->getSpelling() << T.str(); 1904 1905 const Option &O = A->getOption(); 1906 if (O.matches(OPT_fpcc_struct_return) || 1907 O.matches(OPT_maix_struct_return)) { 1908 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1909 } else { 1910 assert(O.matches(OPT_freg_struct_return) || 1911 O.matches(OPT_msvr4_struct_return)); 1912 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1913 } 1914 } 1915 1916 if (Arg *A = 1917 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1918 if (!T.isOSAIX()) 1919 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1920 << A->getSpelling() << T.str(); 1921 1922 const Option &O = A->getOption(); 1923 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1924 } 1925 1926 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1927 if (!T.isOSAIX() || T.isPPC32()) 1928 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1929 << A->getSpelling() << T.str(); 1930 } 1931 1932 bool NeedLocTracking = false; 1933 1934 if (!Opts.OptRecordFile.empty()) 1935 NeedLocTracking = true; 1936 1937 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1938 Opts.OptRecordPasses = A->getValue(); 1939 NeedLocTracking = true; 1940 } 1941 1942 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1943 Opts.OptRecordFormat = A->getValue(); 1944 NeedLocTracking = true; 1945 } 1946 1947 Opts.OptimizationRemark = 1948 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1949 1950 Opts.OptimizationRemarkMissed = 1951 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1952 1953 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1954 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1955 1956 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1957 Opts.OptimizationRemarkMissed.hasValidPattern() || 1958 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1959 1960 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1961 bool UsingProfile = UsingSampleProfile || 1962 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1963 1964 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1965 // An IR file will contain PGO as metadata 1966 IK.getLanguage() != Language::LLVM_IR) 1967 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1968 << "-fdiagnostics-show-hotness"; 1969 1970 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1971 if (auto *arg = 1972 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1973 auto ResultOrErr = 1974 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1975 1976 if (!ResultOrErr) { 1977 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1978 << "-fdiagnostics-hotness-threshold="; 1979 } else { 1980 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1981 if ((!Opts.DiagnosticsHotnessThreshold || 1982 Opts.DiagnosticsHotnessThreshold.value() > 0) && 1983 !UsingProfile) 1984 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1985 << "-fdiagnostics-hotness-threshold="; 1986 } 1987 } 1988 1989 if (auto *arg = 1990 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1991 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1992 1993 if (!ResultOrErr) { 1994 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 1995 << "-fdiagnostics-misexpect-tolerance="; 1996 } else { 1997 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 1998 if ((!Opts.DiagnosticsMisExpectTolerance || 1999 Opts.DiagnosticsMisExpectTolerance.value() > 0) && 2000 !UsingProfile) 2001 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2002 << "-fdiagnostics-misexpect-tolerance="; 2003 } 2004 } 2005 2006 // If the user requested to use a sample profile for PGO, then the 2007 // backend will need to track source location information so the profile 2008 // can be incorporated into the IR. 2009 if (UsingSampleProfile) 2010 NeedLocTracking = true; 2011 2012 if (!Opts.StackUsageOutput.empty()) 2013 NeedLocTracking = true; 2014 2015 // If the user requested a flag that requires source locations available in 2016 // the backend, make sure that the backend tracks source location information. 2017 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2018 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2019 2020 // Parse -fsanitize-recover= arguments. 2021 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2022 parseSanitizerKinds("-fsanitize-recover=", 2023 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2024 Opts.SanitizeRecover); 2025 parseSanitizerKinds("-fsanitize-trap=", 2026 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2027 Opts.SanitizeTrap); 2028 2029 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2030 2031 if (Args.hasArg(options::OPT_ffinite_loops)) 2032 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2033 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2034 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2035 2036 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2037 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2038 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2039 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2040 2041 return Diags.getNumErrors() == NumErrorsBefore; 2042 } 2043 2044 static void 2045 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2046 SmallVectorImpl<const char *> &Args, 2047 CompilerInvocation::StringAllocator SA) { 2048 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2049 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2050 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2051 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2052 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2053 MERGER, EXTRACTOR, TABLE_INDEX) \ 2054 GENERATE_OPTION_WITH_MARSHALLING( \ 2055 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2056 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2057 #include "clang/Driver/Options.inc" 2058 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2059 2060 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2061 GenerateArg(Args, OPT_show_includes, SA); 2062 2063 for (const auto &Dep : Opts.ExtraDeps) { 2064 switch (Dep.second) { 2065 case EDK_SanitizeIgnorelist: 2066 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2067 continue; 2068 case EDK_ModuleFile: 2069 // Module file arguments are generated from FrontendOptions and 2070 // HeaderSearchOptions. 2071 continue; 2072 case EDK_ProfileList: 2073 // Profile list arguments are generated from LanguageOptions via the 2074 // marshalling infrastructure. 2075 continue; 2076 case EDK_DepFileEntry: 2077 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2078 break; 2079 } 2080 } 2081 } 2082 2083 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2084 ArgList &Args, DiagnosticsEngine &Diags, 2085 frontend::ActionKind Action, 2086 bool ShowLineMarkers) { 2087 unsigned NumErrorsBefore = Diags.getNumErrors(); 2088 2089 DependencyOutputOptions &DependencyOutputOpts = Opts; 2090 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2091 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2092 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2093 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2094 MERGER, EXTRACTOR, TABLE_INDEX) \ 2095 PARSE_OPTION_WITH_MARSHALLING( \ 2096 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2097 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2098 #include "clang/Driver/Options.inc" 2099 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2100 2101 if (Args.hasArg(OPT_show_includes)) { 2102 // Writing both /showIncludes and preprocessor output to stdout 2103 // would produce interleaved output, so use stderr for /showIncludes. 2104 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2105 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2106 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2107 else 2108 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2109 } else { 2110 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2111 } 2112 2113 // Add sanitizer ignorelists as extra dependencies. 2114 // They won't be discovered by the regular preprocessor, so 2115 // we let make / ninja to know about this implicit dependency. 2116 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2117 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2118 StringRef Val = A->getValue(); 2119 if (!Val.contains('=')) 2120 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2121 } 2122 if (Opts.IncludeSystemHeaders) { 2123 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2124 StringRef Val = A->getValue(); 2125 if (!Val.contains('=')) 2126 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2127 } 2128 } 2129 } 2130 2131 // -fprofile-list= dependencies. 2132 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2133 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2134 2135 // Propagate the extra dependencies. 2136 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2137 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2138 2139 // Only the -fmodule-file=<file> form. 2140 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2141 StringRef Val = A->getValue(); 2142 if (!Val.contains('=')) 2143 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2144 } 2145 2146 return Diags.getNumErrors() == NumErrorsBefore; 2147 } 2148 2149 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2150 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2151 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2152 // Support both clang's -f[no-]color-diagnostics and gcc's 2153 // -f[no-]diagnostics-colors[=never|always|auto]. 2154 enum { 2155 Colors_On, 2156 Colors_Off, 2157 Colors_Auto 2158 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2159 for (auto *A : Args) { 2160 const Option &O = A->getOption(); 2161 if (O.matches(options::OPT_fcolor_diagnostics)) { 2162 ShowColors = Colors_On; 2163 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2164 ShowColors = Colors_Off; 2165 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2166 StringRef Value(A->getValue()); 2167 if (Value == "always") 2168 ShowColors = Colors_On; 2169 else if (Value == "never") 2170 ShowColors = Colors_Off; 2171 else if (Value == "auto") 2172 ShowColors = Colors_Auto; 2173 } 2174 } 2175 return ShowColors == Colors_On || 2176 (ShowColors == Colors_Auto && 2177 llvm::sys::Process::StandardErrHasColors()); 2178 } 2179 2180 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2181 DiagnosticsEngine &Diags) { 2182 bool Success = true; 2183 for (const auto &Prefix : VerifyPrefixes) { 2184 // Every prefix must start with a letter and contain only alphanumeric 2185 // characters, hyphens, and underscores. 2186 auto BadChar = llvm::find_if(Prefix, [](char C) { 2187 return !isAlphanumeric(C) && C != '-' && C != '_'; 2188 }); 2189 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2190 Success = false; 2191 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2192 Diags.Report(diag::note_drv_verify_prefix_spelling); 2193 } 2194 } 2195 return Success; 2196 } 2197 2198 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2199 SmallVectorImpl<const char *> &Args, 2200 CompilerInvocation::StringAllocator SA) { 2201 const FileSystemOptions &FileSystemOpts = Opts; 2202 2203 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2204 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2205 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2206 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2207 MERGER, EXTRACTOR, TABLE_INDEX) \ 2208 GENERATE_OPTION_WITH_MARSHALLING( \ 2209 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2210 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2211 #include "clang/Driver/Options.inc" 2212 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2213 } 2214 2215 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2216 DiagnosticsEngine &Diags) { 2217 unsigned NumErrorsBefore = Diags.getNumErrors(); 2218 2219 FileSystemOptions &FileSystemOpts = Opts; 2220 2221 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2222 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2223 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2224 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2225 MERGER, EXTRACTOR, TABLE_INDEX) \ 2226 PARSE_OPTION_WITH_MARSHALLING( \ 2227 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2228 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2229 #include "clang/Driver/Options.inc" 2230 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2231 2232 return Diags.getNumErrors() == NumErrorsBefore; 2233 } 2234 2235 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2236 SmallVectorImpl<const char *> &Args, 2237 CompilerInvocation::StringAllocator SA) { 2238 const MigratorOptions &MigratorOpts = Opts; 2239 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2240 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2241 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2242 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2243 MERGER, EXTRACTOR, TABLE_INDEX) \ 2244 GENERATE_OPTION_WITH_MARSHALLING( \ 2245 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2246 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2247 #include "clang/Driver/Options.inc" 2248 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2249 } 2250 2251 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2252 DiagnosticsEngine &Diags) { 2253 unsigned NumErrorsBefore = Diags.getNumErrors(); 2254 2255 MigratorOptions &MigratorOpts = Opts; 2256 2257 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2258 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2259 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2260 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2261 MERGER, EXTRACTOR, TABLE_INDEX) \ 2262 PARSE_OPTION_WITH_MARSHALLING( \ 2263 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2264 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2265 #include "clang/Driver/Options.inc" 2266 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2267 2268 return Diags.getNumErrors() == NumErrorsBefore; 2269 } 2270 2271 void CompilerInvocation::GenerateDiagnosticArgs( 2272 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2273 StringAllocator SA, bool DefaultDiagColor) { 2274 const DiagnosticOptions *DiagnosticOpts = &Opts; 2275 #define DIAG_OPTION_WITH_MARSHALLING( \ 2276 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2277 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2278 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2279 MERGER, EXTRACTOR, TABLE_INDEX) \ 2280 GENERATE_OPTION_WITH_MARSHALLING( \ 2281 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2282 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2283 #include "clang/Driver/Options.inc" 2284 #undef DIAG_OPTION_WITH_MARSHALLING 2285 2286 if (!Opts.DiagnosticSerializationFile.empty()) 2287 GenerateArg(Args, OPT_diagnostic_serialized_file, 2288 Opts.DiagnosticSerializationFile, SA); 2289 2290 if (Opts.ShowColors) 2291 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2292 2293 if (Opts.VerifyDiagnostics && 2294 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2295 GenerateArg(Args, OPT_verify, SA); 2296 2297 for (const auto &Prefix : Opts.VerifyPrefixes) 2298 if (Prefix != "expected") 2299 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2300 2301 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2302 if (VIU == DiagnosticLevelMask::None) { 2303 // This is the default, don't generate anything. 2304 } else if (VIU == DiagnosticLevelMask::All) { 2305 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2306 } else { 2307 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2308 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2309 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2310 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2311 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2312 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2313 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2314 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2315 } 2316 2317 for (const auto &Warning : Opts.Warnings) { 2318 // This option is automatically generated from UndefPrefixes. 2319 if (Warning == "undef-prefix") 2320 continue; 2321 Args.push_back(SA(StringRef("-W") + Warning)); 2322 } 2323 2324 for (const auto &Remark : Opts.Remarks) { 2325 // These arguments are generated from OptimizationRemark fields of 2326 // CodeGenOptions. 2327 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2328 "pass-analysis", "no-pass-analysis", 2329 "pass-missed", "no-pass-missed"}; 2330 if (llvm::is_contained(IgnoredRemarks, Remark)) 2331 continue; 2332 2333 Args.push_back(SA(StringRef("-R") + Remark)); 2334 } 2335 } 2336 2337 std::unique_ptr<DiagnosticOptions> 2338 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2339 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2340 unsigned MissingArgIndex, MissingArgCount; 2341 InputArgList Args = getDriverOptTable().ParseArgs( 2342 Argv.slice(1), MissingArgIndex, MissingArgCount); 2343 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2344 // Any errors that would be diagnosed here will also be diagnosed later, 2345 // when the DiagnosticsEngine actually exists. 2346 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2347 return DiagOpts; 2348 } 2349 2350 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2351 DiagnosticsEngine *Diags, 2352 bool DefaultDiagColor) { 2353 Optional<DiagnosticsEngine> IgnoringDiags; 2354 if (!Diags) { 2355 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2356 new IgnoringDiagConsumer()); 2357 Diags = &*IgnoringDiags; 2358 } 2359 2360 unsigned NumErrorsBefore = Diags->getNumErrors(); 2361 2362 // The key paths of diagnostic options defined in Options.td start with 2363 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2364 DiagnosticOptions *DiagnosticOpts = &Opts; 2365 2366 #define DIAG_OPTION_WITH_MARSHALLING( \ 2367 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2368 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2369 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2370 MERGER, EXTRACTOR, TABLE_INDEX) \ 2371 PARSE_OPTION_WITH_MARSHALLING( \ 2372 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2373 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2374 #include "clang/Driver/Options.inc" 2375 #undef DIAG_OPTION_WITH_MARSHALLING 2376 2377 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2378 2379 if (Arg *A = 2380 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2381 Opts.DiagnosticSerializationFile = A->getValue(); 2382 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2383 2384 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2385 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2386 if (Args.hasArg(OPT_verify)) 2387 Opts.VerifyPrefixes.push_back("expected"); 2388 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2389 // then sort it to prepare for fast lookup using std::binary_search. 2390 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2391 Opts.VerifyDiagnostics = false; 2392 else 2393 llvm::sort(Opts.VerifyPrefixes); 2394 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2395 parseDiagnosticLevelMask( 2396 "-verify-ignore-unexpected=", 2397 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2398 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2399 DiagMask = DiagnosticLevelMask::All; 2400 Opts.setVerifyIgnoreUnexpected(DiagMask); 2401 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2402 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2403 Diags->Report(diag::warn_ignoring_ftabstop_value) 2404 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2405 } 2406 2407 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2408 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2409 2410 return Diags->getNumErrors() == NumErrorsBefore; 2411 } 2412 2413 /// Parse the argument to the -ftest-module-file-extension 2414 /// command-line argument. 2415 /// 2416 /// \returns true on error, false on success. 2417 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2418 std::string &BlockName, 2419 unsigned &MajorVersion, 2420 unsigned &MinorVersion, 2421 bool &Hashed, 2422 std::string &UserInfo) { 2423 SmallVector<StringRef, 5> Args; 2424 Arg.split(Args, ':', 5); 2425 if (Args.size() < 5) 2426 return true; 2427 2428 BlockName = std::string(Args[0]); 2429 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2430 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2431 if (Args[3].getAsInteger(2, Hashed)) return true; 2432 if (Args.size() > 4) 2433 UserInfo = std::string(Args[4]); 2434 return false; 2435 } 2436 2437 /// Return a table that associates command line option specifiers with the 2438 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2439 /// intentionally missing, as this case is handled separately from other 2440 /// frontend options. 2441 static const auto &getFrontendActionTable() { 2442 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2443 {frontend::ASTDeclList, OPT_ast_list}, 2444 2445 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2446 {frontend::ASTDump, OPT_ast_dump_all}, 2447 {frontend::ASTDump, OPT_ast_dump_EQ}, 2448 {frontend::ASTDump, OPT_ast_dump}, 2449 {frontend::ASTDump, OPT_ast_dump_lookups}, 2450 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2451 2452 {frontend::ASTPrint, OPT_ast_print}, 2453 {frontend::ASTView, OPT_ast_view}, 2454 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2455 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2456 {frontend::DumpTokens, OPT_dump_tokens}, 2457 {frontend::EmitAssembly, OPT_S}, 2458 {frontend::EmitBC, OPT_emit_llvm_bc}, 2459 {frontend::EmitHTML, OPT_emit_html}, 2460 {frontend::EmitLLVM, OPT_emit_llvm}, 2461 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2462 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2463 {frontend::EmitObj, OPT_emit_obj}, 2464 {frontend::ExtractAPI, OPT_extract_api}, 2465 2466 {frontend::FixIt, OPT_fixit_EQ}, 2467 {frontend::FixIt, OPT_fixit}, 2468 2469 {frontend::GenerateModule, OPT_emit_module}, 2470 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2471 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2472 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2473 {frontend::GeneratePCH, OPT_emit_pch}, 2474 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2475 {frontend::InitOnly, OPT_init_only}, 2476 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2477 {frontend::ModuleFileInfo, OPT_module_file_info}, 2478 {frontend::VerifyPCH, OPT_verify_pch}, 2479 {frontend::PrintPreamble, OPT_print_preamble}, 2480 {frontend::PrintPreprocessedInput, OPT_E}, 2481 {frontend::TemplightDump, OPT_templight_dump}, 2482 {frontend::RewriteMacros, OPT_rewrite_macros}, 2483 {frontend::RewriteObjC, OPT_rewrite_objc}, 2484 {frontend::RewriteTest, OPT_rewrite_test}, 2485 {frontend::RunAnalysis, OPT_analyze}, 2486 {frontend::MigrateSource, OPT_migrate}, 2487 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2488 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2489 OPT_print_dependency_directives_minimized_source}, 2490 }; 2491 2492 return Table; 2493 } 2494 2495 /// Maps command line option to frontend action. 2496 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2497 for (const auto &ActionOpt : getFrontendActionTable()) 2498 if (ActionOpt.second == Opt.getID()) 2499 return ActionOpt.first; 2500 2501 return None; 2502 } 2503 2504 /// Maps frontend action to command line option. 2505 static Optional<OptSpecifier> 2506 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2507 for (const auto &ActionOpt : getFrontendActionTable()) 2508 if (ActionOpt.first == ProgramAction) 2509 return OptSpecifier(ActionOpt.second); 2510 2511 return None; 2512 } 2513 2514 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2515 SmallVectorImpl<const char *> &Args, 2516 CompilerInvocation::StringAllocator SA, 2517 bool IsHeader) { 2518 const FrontendOptions &FrontendOpts = Opts; 2519 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2520 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2521 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2522 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2523 MERGER, EXTRACTOR, TABLE_INDEX) \ 2524 GENERATE_OPTION_WITH_MARSHALLING( \ 2525 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2526 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2527 #include "clang/Driver/Options.inc" 2528 #undef FRONTEND_OPTION_WITH_MARSHALLING 2529 2530 Optional<OptSpecifier> ProgramActionOpt = 2531 getProgramActionOpt(Opts.ProgramAction); 2532 2533 // Generating a simple flag covers most frontend actions. 2534 std::function<void()> GenerateProgramAction = [&]() { 2535 GenerateArg(Args, *ProgramActionOpt, SA); 2536 }; 2537 2538 if (!ProgramActionOpt) { 2539 // PluginAction is the only program action handled separately. 2540 assert(Opts.ProgramAction == frontend::PluginAction && 2541 "Frontend action without option."); 2542 GenerateProgramAction = [&]() { 2543 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2544 }; 2545 } 2546 2547 // FIXME: Simplify the complex 'AST dump' command line. 2548 if (Opts.ProgramAction == frontend::ASTDump) { 2549 GenerateProgramAction = [&]() { 2550 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2551 // marshalling infrastructure. 2552 2553 if (Opts.ASTDumpFormat != ADOF_Default) { 2554 StringRef Format; 2555 switch (Opts.ASTDumpFormat) { 2556 case ADOF_Default: 2557 llvm_unreachable("Default AST dump format."); 2558 case ADOF_JSON: 2559 Format = "json"; 2560 break; 2561 } 2562 2563 if (Opts.ASTDumpAll) 2564 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2565 if (Opts.ASTDumpDecls) 2566 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2567 } else { 2568 if (Opts.ASTDumpAll) 2569 GenerateArg(Args, OPT_ast_dump_all, SA); 2570 if (Opts.ASTDumpDecls) 2571 GenerateArg(Args, OPT_ast_dump, SA); 2572 } 2573 }; 2574 } 2575 2576 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2577 GenerateProgramAction = [&]() { 2578 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2579 }; 2580 } 2581 2582 GenerateProgramAction(); 2583 2584 for (const auto &PluginArgs : Opts.PluginArgs) { 2585 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2586 const char *Spelling = 2587 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2588 for (const auto &PluginArg : PluginArgs.second) 2589 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2590 } 2591 2592 for (const auto &Ext : Opts.ModuleFileExtensions) 2593 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2594 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2595 2596 if (!Opts.CodeCompletionAt.FileName.empty()) 2597 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2598 SA); 2599 2600 for (const auto &Plugin : Opts.Plugins) 2601 GenerateArg(Args, OPT_load, Plugin, SA); 2602 2603 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2604 2605 for (const auto &ModuleFile : Opts.ModuleFiles) 2606 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2607 2608 if (Opts.AuxTargetCPU) 2609 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2610 2611 if (Opts.AuxTargetFeatures) 2612 for (const auto &Feature : *Opts.AuxTargetFeatures) 2613 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2614 2615 { 2616 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2617 StringRef ModuleMap = 2618 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2619 StringRef HeaderUnit = ""; 2620 switch (Opts.DashX.getHeaderUnitKind()) { 2621 case InputKind::HeaderUnit_None: 2622 break; 2623 case InputKind::HeaderUnit_User: 2624 HeaderUnit = "-user"; 2625 break; 2626 case InputKind::HeaderUnit_System: 2627 HeaderUnit = "-system"; 2628 break; 2629 case InputKind::HeaderUnit_Abs: 2630 HeaderUnit = "-header-unit"; 2631 break; 2632 } 2633 StringRef Header = IsHeader ? "-header" : ""; 2634 2635 StringRef Lang; 2636 switch (Opts.DashX.getLanguage()) { 2637 case Language::C: 2638 Lang = "c"; 2639 break; 2640 case Language::OpenCL: 2641 Lang = "cl"; 2642 break; 2643 case Language::OpenCLCXX: 2644 Lang = "clcpp"; 2645 break; 2646 case Language::CUDA: 2647 Lang = "cuda"; 2648 break; 2649 case Language::HIP: 2650 Lang = "hip"; 2651 break; 2652 case Language::CXX: 2653 Lang = "c++"; 2654 break; 2655 case Language::ObjC: 2656 Lang = "objective-c"; 2657 break; 2658 case Language::ObjCXX: 2659 Lang = "objective-c++"; 2660 break; 2661 case Language::RenderScript: 2662 Lang = "renderscript"; 2663 break; 2664 case Language::Asm: 2665 Lang = "assembler-with-cpp"; 2666 break; 2667 case Language::Unknown: 2668 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2669 "Generating -x argument for unknown language (not precompiled)."); 2670 Lang = "ast"; 2671 break; 2672 case Language::LLVM_IR: 2673 Lang = "ir"; 2674 break; 2675 case Language::HLSL: 2676 Lang = "hlsl"; 2677 break; 2678 } 2679 2680 GenerateArg(Args, OPT_x, 2681 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2682 } 2683 2684 // OPT_INPUT has a unique class, generate it directly. 2685 for (const auto &Input : Opts.Inputs) 2686 Args.push_back(SA(Input.getFile())); 2687 } 2688 2689 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2690 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2691 unsigned NumErrorsBefore = Diags.getNumErrors(); 2692 2693 FrontendOptions &FrontendOpts = Opts; 2694 2695 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2696 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2697 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2698 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2699 MERGER, EXTRACTOR, TABLE_INDEX) \ 2700 PARSE_OPTION_WITH_MARSHALLING( \ 2701 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2702 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2703 #include "clang/Driver/Options.inc" 2704 #undef FRONTEND_OPTION_WITH_MARSHALLING 2705 2706 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2707 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2708 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2709 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2710 assert(ProgramAction && "Option specifier not in Action_Group."); 2711 2712 if (ProgramAction == frontend::ASTDump && 2713 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2714 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2715 .CaseLower("default", ADOF_Default) 2716 .CaseLower("json", ADOF_JSON) 2717 .Default(std::numeric_limits<unsigned>::max()); 2718 2719 if (Val != std::numeric_limits<unsigned>::max()) 2720 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2721 else { 2722 Diags.Report(diag::err_drv_invalid_value) 2723 << A->getAsString(Args) << A->getValue(); 2724 Opts.ASTDumpFormat = ADOF_Default; 2725 } 2726 } 2727 2728 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2729 Opts.FixItSuffix = A->getValue(); 2730 2731 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2732 StringRef ArgStr = 2733 Args.hasArg(OPT_interface_stub_version_EQ) 2734 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2735 : "ifs-v1"; 2736 if (ArgStr == "experimental-yaml-elf-v1" || 2737 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2738 ArgStr == "experimental-tapi-elf-v1") { 2739 std::string ErrorMessage = 2740 "Invalid interface stub format: " + ArgStr.str() + 2741 " is deprecated."; 2742 Diags.Report(diag::err_drv_invalid_value) 2743 << "Must specify a valid interface stub format type, ie: " 2744 "-interface-stub-version=ifs-v1" 2745 << ErrorMessage; 2746 ProgramAction = frontend::ParseSyntaxOnly; 2747 } else if (!ArgStr.startswith("ifs-")) { 2748 std::string ErrorMessage = 2749 "Invalid interface stub format: " + ArgStr.str() + "."; 2750 Diags.Report(diag::err_drv_invalid_value) 2751 << "Must specify a valid interface stub format type, ie: " 2752 "-interface-stub-version=ifs-v1" 2753 << ErrorMessage; 2754 ProgramAction = frontend::ParseSyntaxOnly; 2755 } 2756 } 2757 2758 Opts.ProgramAction = *ProgramAction; 2759 } 2760 2761 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2762 Opts.Plugins.emplace_back(A->getValue(0)); 2763 Opts.ProgramAction = frontend::PluginAction; 2764 Opts.ActionName = A->getValue(); 2765 } 2766 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2767 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2768 2769 for (const std::string &Arg : 2770 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2771 std::string BlockName; 2772 unsigned MajorVersion; 2773 unsigned MinorVersion; 2774 bool Hashed; 2775 std::string UserInfo; 2776 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2777 MinorVersion, Hashed, UserInfo)) { 2778 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2779 2780 continue; 2781 } 2782 2783 // Add the testing module file extension. 2784 Opts.ModuleFileExtensions.push_back( 2785 std::make_shared<TestModuleFileExtension>( 2786 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2787 } 2788 2789 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2790 Opts.CodeCompletionAt = 2791 ParsedSourceLocation::FromString(A->getValue()); 2792 if (Opts.CodeCompletionAt.FileName.empty()) 2793 Diags.Report(diag::err_drv_invalid_value) 2794 << A->getAsString(Args) << A->getValue(); 2795 } 2796 2797 Opts.Plugins = Args.getAllArgValues(OPT_load); 2798 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2799 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2800 // Only the -fmodule-file=<file> form. 2801 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2802 StringRef Val = A->getValue(); 2803 if (!Val.contains('=')) 2804 Opts.ModuleFiles.push_back(std::string(Val)); 2805 } 2806 2807 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2808 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2809 << "-emit-module"; 2810 2811 if (Args.hasArg(OPT_aux_target_cpu)) 2812 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2813 if (Args.hasArg(OPT_aux_target_feature)) 2814 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2815 2816 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2817 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2818 Diags.Report(diag::err_drv_argument_not_allowed_with) 2819 << "ARC migration" << "ObjC migration"; 2820 } 2821 2822 InputKind DashX(Language::Unknown); 2823 if (const Arg *A = Args.getLastArg(OPT_x)) { 2824 StringRef XValue = A->getValue(); 2825 2826 // Parse suffixes: 2827 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2828 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2829 bool Preprocessed = XValue.consume_back("-cpp-output"); 2830 bool ModuleMap = XValue.consume_back("-module-map"); 2831 // Detect and consume the header indicator. 2832 bool IsHeader = 2833 XValue != "precompiled-header" && XValue.consume_back("-header"); 2834 2835 // If we have c++-{user,system}-header, that indicates a header unit input 2836 // likewise, if the user put -fmodule-header together with a header with an 2837 // absolute path (header-unit-header). 2838 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2839 if (IsHeader || Preprocessed) { 2840 if (XValue.consume_back("-header-unit")) 2841 HUK = InputKind::HeaderUnit_Abs; 2842 else if (XValue.consume_back("-system")) 2843 HUK = InputKind::HeaderUnit_System; 2844 else if (XValue.consume_back("-user")) 2845 HUK = InputKind::HeaderUnit_User; 2846 } 2847 2848 // The value set by this processing is an un-preprocessed source which is 2849 // not intended to be a module map or header unit. 2850 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2851 HUK == InputKind::HeaderUnit_None; 2852 2853 // Principal languages. 2854 DashX = llvm::StringSwitch<InputKind>(XValue) 2855 .Case("c", Language::C) 2856 .Case("cl", Language::OpenCL) 2857 .Case("clcpp", Language::OpenCLCXX) 2858 .Case("cuda", Language::CUDA) 2859 .Case("hip", Language::HIP) 2860 .Case("c++", Language::CXX) 2861 .Case("objective-c", Language::ObjC) 2862 .Case("objective-c++", Language::ObjCXX) 2863 .Case("renderscript", Language::RenderScript) 2864 .Case("hlsl", Language::HLSL) 2865 .Default(Language::Unknown); 2866 2867 // "objc[++]-cpp-output" is an acceptable synonym for 2868 // "objective-c[++]-cpp-output". 2869 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2870 HUK == InputKind::HeaderUnit_None) 2871 DashX = llvm::StringSwitch<InputKind>(XValue) 2872 .Case("objc", Language::ObjC) 2873 .Case("objc++", Language::ObjCXX) 2874 .Default(Language::Unknown); 2875 2876 // Some special cases cannot be combined with suffixes. 2877 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2878 HUK == InputKind::HeaderUnit_None) 2879 DashX = llvm::StringSwitch<InputKind>(XValue) 2880 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2881 .Case("assembler-with-cpp", Language::Asm) 2882 .Cases("ast", "pcm", "precompiled-header", 2883 InputKind(Language::Unknown, InputKind::Precompiled)) 2884 .Case("ir", Language::LLVM_IR) 2885 .Default(Language::Unknown); 2886 2887 if (DashX.isUnknown()) 2888 Diags.Report(diag::err_drv_invalid_value) 2889 << A->getAsString(Args) << A->getValue(); 2890 2891 if (Preprocessed) 2892 DashX = DashX.getPreprocessed(); 2893 // A regular header is considered mutually exclusive with a header unit. 2894 if (HUK != InputKind::HeaderUnit_None) { 2895 DashX = DashX.withHeaderUnit(HUK); 2896 IsHeaderFile = true; 2897 } else if (IsHeaderFile) 2898 DashX = DashX.getHeader(); 2899 if (ModuleMap) 2900 DashX = DashX.withFormat(InputKind::ModuleMap); 2901 } 2902 2903 // '-' is the default input if none is given. 2904 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2905 Opts.Inputs.clear(); 2906 if (Inputs.empty()) 2907 Inputs.push_back("-"); 2908 2909 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2910 Inputs.size() > 1) 2911 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2912 2913 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2914 InputKind IK = DashX; 2915 if (IK.isUnknown()) { 2916 IK = FrontendOptions::getInputKindForExtension( 2917 StringRef(Inputs[i]).rsplit('.').second); 2918 // FIXME: Warn on this? 2919 if (IK.isUnknown()) 2920 IK = Language::C; 2921 // FIXME: Remove this hack. 2922 if (i == 0) 2923 DashX = IK; 2924 } 2925 2926 bool IsSystem = false; 2927 2928 // The -emit-module action implicitly takes a module map. 2929 if (Opts.ProgramAction == frontend::GenerateModule && 2930 IK.getFormat() == InputKind::Source) { 2931 IK = IK.withFormat(InputKind::ModuleMap); 2932 IsSystem = Opts.IsSystemModule; 2933 } 2934 2935 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2936 } 2937 2938 Opts.DashX = DashX; 2939 2940 return Diags.getNumErrors() == NumErrorsBefore; 2941 } 2942 2943 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2944 void *MainAddr) { 2945 std::string ClangExecutable = 2946 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2947 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2948 } 2949 2950 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2951 SmallVectorImpl<const char *> &Args, 2952 CompilerInvocation::StringAllocator SA) { 2953 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2954 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2955 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2956 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2957 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2958 MERGER, EXTRACTOR, TABLE_INDEX) \ 2959 GENERATE_OPTION_WITH_MARSHALLING( \ 2960 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2961 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2962 #include "clang/Driver/Options.inc" 2963 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2964 2965 if (Opts.UseLibcxx) 2966 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2967 2968 if (!Opts.ModuleCachePath.empty()) 2969 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2970 2971 for (const auto &File : Opts.PrebuiltModuleFiles) 2972 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2973 2974 for (const auto &Path : Opts.PrebuiltModulePaths) 2975 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2976 2977 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2978 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2979 2980 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2981 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2982 llvm::Optional<bool> IsFramework, 2983 llvm::Optional<bool> IgnoreSysRoot) { 2984 return llvm::is_contained(Groups, Entry.Group) && 2985 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2986 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2987 }; 2988 2989 auto It = Opts.UserEntries.begin(); 2990 auto End = Opts.UserEntries.end(); 2991 2992 // Add -I..., -F..., and -index-header-map options in order. 2993 for (; It < End && 2994 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2995 ++It) { 2996 OptSpecifier Opt = [It, Matches]() { 2997 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2998 return OPT_F; 2999 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3000 return OPT_I; 3001 if (Matches(*It, frontend::Angled, true, true)) 3002 return OPT_F; 3003 if (Matches(*It, frontend::Angled, false, true)) 3004 return OPT_I; 3005 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3006 }(); 3007 3008 if (It->Group == frontend::IndexHeaderMap) 3009 GenerateArg(Args, OPT_index_header_map, SA); 3010 GenerateArg(Args, Opt, It->Path, SA); 3011 }; 3012 3013 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3014 // have already been generated as "-I[xx]yy". If that's the case, their 3015 // position on command line was such that this has no semantic impact on 3016 // include paths. 3017 for (; It < End && 3018 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3019 ++It) { 3020 OptSpecifier Opt = 3021 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3022 GenerateArg(Args, Opt, It->Path, SA); 3023 } 3024 3025 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3026 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3027 // command line was such that this has no semantic impact on include paths. 3028 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3029 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3030 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3031 GenerateArg(Args, OPT_iquote, It->Path, SA); 3032 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3033 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3034 It->Path, SA); 3035 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3036 GenerateArg(Args, OPT_iframework, It->Path, SA); 3037 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3038 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3039 3040 // Add the paths for the various language specific isystem flags. 3041 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3042 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3043 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3044 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3045 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3046 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3047 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3048 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3049 3050 // Add the internal paths from a driver that detects standard include paths. 3051 // Note: Some paths that came from "-internal-isystem" arguments may have 3052 // already been generated as "-isystem". If that's the case, their position on 3053 // command line was such that this has no semantic impact on include paths. 3054 for (; It < End && 3055 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3056 ++It) { 3057 OptSpecifier Opt = It->Group == frontend::System 3058 ? OPT_internal_isystem 3059 : OPT_internal_externc_isystem; 3060 GenerateArg(Args, Opt, It->Path, SA); 3061 } 3062 3063 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3064 3065 // Add the path prefixes which are implicitly treated as being system headers. 3066 for (const auto &P : Opts.SystemHeaderPrefixes) { 3067 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3068 : OPT_no_system_header_prefix; 3069 GenerateArg(Args, Opt, P.Prefix, SA); 3070 } 3071 3072 for (const std::string &F : Opts.VFSOverlayFiles) 3073 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3074 } 3075 3076 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3077 DiagnosticsEngine &Diags, 3078 const std::string &WorkingDir) { 3079 unsigned NumErrorsBefore = Diags.getNumErrors(); 3080 3081 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3082 3083 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3084 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3085 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3086 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3087 MERGER, EXTRACTOR, TABLE_INDEX) \ 3088 PARSE_OPTION_WITH_MARSHALLING( \ 3089 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3090 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3091 #include "clang/Driver/Options.inc" 3092 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3093 3094 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3095 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3096 3097 // Canonicalize -fmodules-cache-path before storing it. 3098 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3099 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3100 if (WorkingDir.empty()) 3101 llvm::sys::fs::make_absolute(P); 3102 else 3103 llvm::sys::fs::make_absolute(WorkingDir, P); 3104 } 3105 llvm::sys::path::remove_dots(P); 3106 Opts.ModuleCachePath = std::string(P.str()); 3107 3108 // Only the -fmodule-file=<name>=<file> form. 3109 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3110 StringRef Val = A->getValue(); 3111 if (Val.contains('=')) { 3112 auto Split = Val.split('='); 3113 Opts.PrebuiltModuleFiles.insert( 3114 {std::string(Split.first), std::string(Split.second)}); 3115 } 3116 } 3117 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3118 Opts.AddPrebuiltModulePath(A->getValue()); 3119 3120 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3121 StringRef MacroDef = A->getValue(); 3122 Opts.ModulesIgnoreMacros.insert( 3123 llvm::CachedHashString(MacroDef.split('=').first)); 3124 } 3125 3126 // Add -I..., -F..., and -index-header-map options in order. 3127 bool IsIndexHeaderMap = false; 3128 bool IsSysrootSpecified = 3129 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3130 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3131 if (A->getOption().matches(OPT_index_header_map)) { 3132 // -index-header-map applies to the next -I or -F. 3133 IsIndexHeaderMap = true; 3134 continue; 3135 } 3136 3137 frontend::IncludeDirGroup Group = 3138 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3139 3140 bool IsFramework = A->getOption().matches(OPT_F); 3141 std::string Path = A->getValue(); 3142 3143 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3144 SmallString<32> Buffer; 3145 llvm::sys::path::append(Buffer, Opts.Sysroot, 3146 llvm::StringRef(A->getValue()).substr(1)); 3147 Path = std::string(Buffer.str()); 3148 } 3149 3150 Opts.AddPath(Path, Group, IsFramework, 3151 /*IgnoreSysroot*/ true); 3152 IsIndexHeaderMap = false; 3153 } 3154 3155 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3156 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3157 for (const auto *A : 3158 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3159 if (A->getOption().matches(OPT_iprefix)) 3160 Prefix = A->getValue(); 3161 else if (A->getOption().matches(OPT_iwithprefix)) 3162 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3163 else 3164 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3165 } 3166 3167 for (const auto *A : Args.filtered(OPT_idirafter)) 3168 Opts.AddPath(A->getValue(), frontend::After, false, true); 3169 for (const auto *A : Args.filtered(OPT_iquote)) 3170 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3171 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3172 Opts.AddPath(A->getValue(), frontend::System, false, 3173 !A->getOption().matches(OPT_iwithsysroot)); 3174 for (const auto *A : Args.filtered(OPT_iframework)) 3175 Opts.AddPath(A->getValue(), frontend::System, true, true); 3176 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3177 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3178 /*IgnoreSysRoot=*/false); 3179 3180 // Add the paths for the various language specific isystem flags. 3181 for (const auto *A : Args.filtered(OPT_c_isystem)) 3182 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3183 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3184 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3185 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3186 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3187 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3188 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3189 3190 // Add the internal paths from a driver that detects standard include paths. 3191 for (const auto *A : 3192 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3193 frontend::IncludeDirGroup Group = frontend::System; 3194 if (A->getOption().matches(OPT_internal_externc_isystem)) 3195 Group = frontend::ExternCSystem; 3196 Opts.AddPath(A->getValue(), Group, false, true); 3197 } 3198 3199 // Add the path prefixes which are implicitly treated as being system headers. 3200 for (const auto *A : 3201 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3202 Opts.AddSystemHeaderPrefix( 3203 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3204 3205 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3206 Opts.AddVFSOverlayFile(A->getValue()); 3207 3208 return Diags.getNumErrors() == NumErrorsBefore; 3209 } 3210 3211 /// Check if input file kind and language standard are compatible. 3212 static bool IsInputCompatibleWithStandard(InputKind IK, 3213 const LangStandard &S) { 3214 switch (IK.getLanguage()) { 3215 case Language::Unknown: 3216 case Language::LLVM_IR: 3217 llvm_unreachable("should not parse language flags for this input"); 3218 3219 case Language::C: 3220 case Language::ObjC: 3221 case Language::RenderScript: 3222 return S.getLanguage() == Language::C; 3223 3224 case Language::OpenCL: 3225 return S.getLanguage() == Language::OpenCL || 3226 S.getLanguage() == Language::OpenCLCXX; 3227 3228 case Language::OpenCLCXX: 3229 return S.getLanguage() == Language::OpenCLCXX; 3230 3231 case Language::CXX: 3232 case Language::ObjCXX: 3233 return S.getLanguage() == Language::CXX; 3234 3235 case Language::CUDA: 3236 // FIXME: What -std= values should be permitted for CUDA compilations? 3237 return S.getLanguage() == Language::CUDA || 3238 S.getLanguage() == Language::CXX; 3239 3240 case Language::HIP: 3241 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3242 3243 case Language::Asm: 3244 // Accept (and ignore) all -std= values. 3245 // FIXME: The -std= value is not ignored; it affects the tokenization 3246 // and preprocessing rules if we're preprocessing this asm input. 3247 return true; 3248 3249 case Language::HLSL: 3250 return S.getLanguage() == Language::HLSL; 3251 } 3252 3253 llvm_unreachable("unexpected input language"); 3254 } 3255 3256 /// Get language name for given input kind. 3257 static StringRef GetInputKindName(InputKind IK) { 3258 switch (IK.getLanguage()) { 3259 case Language::C: 3260 return "C"; 3261 case Language::ObjC: 3262 return "Objective-C"; 3263 case Language::CXX: 3264 return "C++"; 3265 case Language::ObjCXX: 3266 return "Objective-C++"; 3267 case Language::OpenCL: 3268 return "OpenCL"; 3269 case Language::OpenCLCXX: 3270 return "C++ for OpenCL"; 3271 case Language::CUDA: 3272 return "CUDA"; 3273 case Language::RenderScript: 3274 return "RenderScript"; 3275 case Language::HIP: 3276 return "HIP"; 3277 3278 case Language::Asm: 3279 return "Asm"; 3280 case Language::LLVM_IR: 3281 return "LLVM IR"; 3282 3283 case Language::HLSL: 3284 return "HLSL"; 3285 3286 case Language::Unknown: 3287 break; 3288 } 3289 llvm_unreachable("unknown input language"); 3290 } 3291 3292 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3293 SmallVectorImpl<const char *> &Args, 3294 StringAllocator SA, 3295 const llvm::Triple &T, InputKind IK) { 3296 if (IK.getFormat() == InputKind::Precompiled || 3297 IK.getLanguage() == Language::LLVM_IR) { 3298 if (Opts.ObjCAutoRefCount) 3299 GenerateArg(Args, OPT_fobjc_arc, SA); 3300 if (Opts.PICLevel != 0) 3301 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3302 if (Opts.PIE) 3303 GenerateArg(Args, OPT_pic_is_pie, SA); 3304 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3305 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3306 3307 return; 3308 } 3309 3310 OptSpecifier StdOpt; 3311 switch (Opts.LangStd) { 3312 case LangStandard::lang_opencl10: 3313 case LangStandard::lang_opencl11: 3314 case LangStandard::lang_opencl12: 3315 case LangStandard::lang_opencl20: 3316 case LangStandard::lang_opencl30: 3317 case LangStandard::lang_openclcpp10: 3318 case LangStandard::lang_openclcpp2021: 3319 StdOpt = OPT_cl_std_EQ; 3320 break; 3321 default: 3322 StdOpt = OPT_std_EQ; 3323 break; 3324 } 3325 3326 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3327 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3328 3329 if (Opts.IncludeDefaultHeader) 3330 GenerateArg(Args, OPT_finclude_default_header, SA); 3331 if (Opts.DeclareOpenCLBuiltins) 3332 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3333 3334 const LangOptions *LangOpts = &Opts; 3335 3336 #define LANG_OPTION_WITH_MARSHALLING( \ 3337 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3338 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3339 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3340 MERGER, EXTRACTOR, TABLE_INDEX) \ 3341 GENERATE_OPTION_WITH_MARSHALLING( \ 3342 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3343 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3344 #include "clang/Driver/Options.inc" 3345 #undef LANG_OPTION_WITH_MARSHALLING 3346 3347 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3348 3349 if (Opts.ObjC) { 3350 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3351 3352 if (Opts.GC == LangOptions::GCOnly) 3353 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3354 else if (Opts.GC == LangOptions::HybridGC) 3355 GenerateArg(Args, OPT_fobjc_gc, SA); 3356 else if (Opts.ObjCAutoRefCount == 1) 3357 GenerateArg(Args, OPT_fobjc_arc, SA); 3358 3359 if (Opts.ObjCWeakRuntime) 3360 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3361 3362 if (Opts.ObjCWeak) 3363 GenerateArg(Args, OPT_fobjc_weak, SA); 3364 3365 if (Opts.ObjCSubscriptingLegacyRuntime) 3366 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3367 } 3368 3369 if (Opts.GNUCVersion != 0) { 3370 unsigned Major = Opts.GNUCVersion / 100 / 100; 3371 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3372 unsigned Patch = Opts.GNUCVersion % 100; 3373 GenerateArg(Args, OPT_fgnuc_version_EQ, 3374 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3375 } 3376 3377 if (Opts.IgnoreXCOFFVisibility) 3378 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3379 3380 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3381 GenerateArg(Args, OPT_ftrapv, SA); 3382 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3383 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3384 GenerateArg(Args, OPT_fwrapv, SA); 3385 } 3386 3387 if (Opts.MSCompatibilityVersion != 0) { 3388 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3389 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3390 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3391 GenerateArg(Args, OPT_fms_compatibility_version, 3392 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3393 } 3394 3395 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3396 if (!Opts.Trigraphs) 3397 GenerateArg(Args, OPT_fno_trigraphs, SA); 3398 } else { 3399 if (Opts.Trigraphs) 3400 GenerateArg(Args, OPT_ftrigraphs, SA); 3401 } 3402 3403 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3404 GenerateArg(Args, OPT_fblocks, SA); 3405 3406 if (Opts.ConvergentFunctions && 3407 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3408 GenerateArg(Args, OPT_fconvergent_functions, SA); 3409 3410 if (Opts.NoBuiltin && !Opts.Freestanding) 3411 GenerateArg(Args, OPT_fno_builtin, SA); 3412 3413 if (!Opts.NoBuiltin) 3414 for (const auto &Func : Opts.NoBuiltinFuncs) 3415 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3416 3417 if (Opts.LongDoubleSize == 128) 3418 GenerateArg(Args, OPT_mlong_double_128, SA); 3419 else if (Opts.LongDoubleSize == 64) 3420 GenerateArg(Args, OPT_mlong_double_64, SA); 3421 else if (Opts.LongDoubleSize == 80) 3422 GenerateArg(Args, OPT_mlong_double_80, SA); 3423 3424 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3425 3426 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3427 // '-fopenmp-targets='. 3428 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3429 GenerateArg(Args, OPT_fopenmp, SA); 3430 3431 if (Opts.OpenMP != 50) 3432 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3433 3434 if (!Opts.OpenMPUseTLS) 3435 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3436 3437 if (Opts.OpenMPIsDevice) 3438 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3439 3440 if (Opts.OpenMPIRBuilder) 3441 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3442 } 3443 3444 if (Opts.OpenMPSimd) { 3445 GenerateArg(Args, OPT_fopenmp_simd, SA); 3446 3447 if (Opts.OpenMP != 50) 3448 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3449 } 3450 3451 if (Opts.OpenMPThreadSubscription) 3452 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3453 3454 if (Opts.OpenMPTeamSubscription) 3455 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3456 3457 if (Opts.OpenMPTargetDebug != 0) 3458 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3459 Twine(Opts.OpenMPTargetDebug), SA); 3460 3461 if (Opts.OpenMPCUDANumSMs != 0) 3462 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3463 Twine(Opts.OpenMPCUDANumSMs), SA); 3464 3465 if (Opts.OpenMPCUDABlocksPerSM != 0) 3466 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3467 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3468 3469 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3470 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3471 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3472 3473 if (!Opts.OMPTargetTriples.empty()) { 3474 std::string Targets; 3475 llvm::raw_string_ostream OS(Targets); 3476 llvm::interleave( 3477 Opts.OMPTargetTriples, OS, 3478 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3479 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3480 } 3481 3482 if (!Opts.OMPHostIRFile.empty()) 3483 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3484 3485 if (Opts.OpenMPCUDAMode) 3486 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3487 3488 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3489 // generated from CodeGenOptions. 3490 3491 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3492 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3493 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3494 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3495 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3496 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3497 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3498 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3499 3500 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3501 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3502 3503 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3504 for (const std::string &F : Opts.NoSanitizeFiles) 3505 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3506 3507 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3508 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3509 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3510 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3511 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3512 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3513 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3514 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3515 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3516 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3517 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3518 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3519 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3520 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3521 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3522 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3523 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver15) 3524 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "15.0", SA); 3525 3526 if (Opts.getSignReturnAddressScope() == 3527 LangOptions::SignReturnAddressScopeKind::All) 3528 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3529 else if (Opts.getSignReturnAddressScope() == 3530 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3531 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3532 3533 if (Opts.getSignReturnAddressKey() == 3534 LangOptions::SignReturnAddressKeyKind::BKey) 3535 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3536 3537 if (Opts.CXXABI) 3538 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3539 SA); 3540 3541 if (Opts.RelativeCXXABIVTables) 3542 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3543 else 3544 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3545 3546 if (Opts.UseTargetPathSeparator) 3547 GenerateArg(Args, OPT_ffile_reproducible, SA); 3548 else 3549 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3550 3551 for (const auto &MP : Opts.MacroPrefixMap) 3552 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3553 3554 if (!Opts.RandstructSeed.empty()) 3555 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3556 } 3557 3558 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3559 InputKind IK, const llvm::Triple &T, 3560 std::vector<std::string> &Includes, 3561 DiagnosticsEngine &Diags) { 3562 unsigned NumErrorsBefore = Diags.getNumErrors(); 3563 3564 if (IK.getFormat() == InputKind::Precompiled || 3565 IK.getLanguage() == Language::LLVM_IR) { 3566 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3567 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3568 // what the input type is. 3569 if (Args.hasArg(OPT_fobjc_arc)) 3570 Opts.ObjCAutoRefCount = 1; 3571 // PICLevel and PIELevel are needed during code generation and this should 3572 // be set regardless of the input type. 3573 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3574 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3575 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3576 Diags, Opts.Sanitize); 3577 3578 return Diags.getNumErrors() == NumErrorsBefore; 3579 } 3580 3581 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3582 // FIXME: Should we really be parsing this for an Language::Asm input? 3583 3584 // FIXME: Cleanup per-file based stuff. 3585 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3586 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3587 LangStd = LangStandard::getLangKind(A->getValue()); 3588 if (LangStd == LangStandard::lang_unspecified) { 3589 Diags.Report(diag::err_drv_invalid_value) 3590 << A->getAsString(Args) << A->getValue(); 3591 // Report supported standards with short description. 3592 for (unsigned KindValue = 0; 3593 KindValue != LangStandard::lang_unspecified; 3594 ++KindValue) { 3595 const LangStandard &Std = LangStandard::getLangStandardForKind( 3596 static_cast<LangStandard::Kind>(KindValue)); 3597 if (IsInputCompatibleWithStandard(IK, Std)) { 3598 auto Diag = Diags.Report(diag::note_drv_use_standard); 3599 Diag << Std.getName() << Std.getDescription(); 3600 unsigned NumAliases = 0; 3601 #define LANGSTANDARD(id, name, lang, desc, features) 3602 #define LANGSTANDARD_ALIAS(id, alias) \ 3603 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3604 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3605 #include "clang/Basic/LangStandards.def" 3606 Diag << NumAliases; 3607 #define LANGSTANDARD(id, name, lang, desc, features) 3608 #define LANGSTANDARD_ALIAS(id, alias) \ 3609 if (KindValue == LangStandard::lang_##id) Diag << alias; 3610 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3611 #include "clang/Basic/LangStandards.def" 3612 } 3613 } 3614 } else { 3615 // Valid standard, check to make sure language and standard are 3616 // compatible. 3617 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3618 if (!IsInputCompatibleWithStandard(IK, Std)) { 3619 Diags.Report(diag::err_drv_argument_not_allowed_with) 3620 << A->getAsString(Args) << GetInputKindName(IK); 3621 } 3622 } 3623 } 3624 3625 // -cl-std only applies for OpenCL language standards. 3626 // Override the -std option in this case. 3627 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3628 LangStandard::Kind OpenCLLangStd 3629 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3630 .Cases("cl", "CL", LangStandard::lang_opencl10) 3631 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3632 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3633 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3634 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3635 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3636 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3637 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3638 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3639 .Default(LangStandard::lang_unspecified); 3640 3641 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3642 Diags.Report(diag::err_drv_invalid_value) 3643 << A->getAsString(Args) << A->getValue(); 3644 } 3645 else 3646 LangStd = OpenCLLangStd; 3647 } 3648 3649 // These need to be parsed now. They are used to set OpenCL defaults. 3650 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3651 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3652 3653 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3654 3655 // The key paths of codegen options defined in Options.td start with 3656 // "LangOpts->". Let's provide the expected variable name and type. 3657 LangOptions *LangOpts = &Opts; 3658 3659 #define LANG_OPTION_WITH_MARSHALLING( \ 3660 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3661 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3662 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3663 MERGER, EXTRACTOR, TABLE_INDEX) \ 3664 PARSE_OPTION_WITH_MARSHALLING( \ 3665 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3666 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3667 #include "clang/Driver/Options.inc" 3668 #undef LANG_OPTION_WITH_MARSHALLING 3669 3670 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3671 StringRef Name = A->getValue(); 3672 if (Name == "full" || Name == "branch") { 3673 Opts.CFProtectionBranch = 1; 3674 } 3675 } 3676 3677 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3678 !Args.hasArg(OPT_sycl_std_EQ)) { 3679 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3680 // provide -sycl-std=, we want to default it to whatever the default SYCL 3681 // version is. I could not find a way to express this with the options 3682 // tablegen because we still want this value to be SYCL_None when the user 3683 // is not in device or host mode. 3684 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3685 } 3686 3687 if (Opts.ObjC) { 3688 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3689 StringRef value = arg->getValue(); 3690 if (Opts.ObjCRuntime.tryParse(value)) 3691 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3692 } 3693 3694 if (Args.hasArg(OPT_fobjc_gc_only)) 3695 Opts.setGC(LangOptions::GCOnly); 3696 else if (Args.hasArg(OPT_fobjc_gc)) 3697 Opts.setGC(LangOptions::HybridGC); 3698 else if (Args.hasArg(OPT_fobjc_arc)) { 3699 Opts.ObjCAutoRefCount = 1; 3700 if (!Opts.ObjCRuntime.allowsARC()) 3701 Diags.Report(diag::err_arc_unsupported_on_runtime); 3702 } 3703 3704 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3705 // whether the feature is actually enabled. This is predominantly 3706 // determined by -fobjc-runtime, but we allow it to be overridden 3707 // from the command line for testing purposes. 3708 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3709 Opts.ObjCWeakRuntime = 1; 3710 else 3711 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3712 3713 // ObjCWeak determines whether __weak is actually enabled. 3714 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3715 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3716 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3717 assert(!Opts.ObjCWeak); 3718 } else if (Opts.getGC() != LangOptions::NonGC) { 3719 Diags.Report(diag::err_objc_weak_with_gc); 3720 } else if (!Opts.ObjCWeakRuntime) { 3721 Diags.Report(diag::err_objc_weak_unsupported); 3722 } else { 3723 Opts.ObjCWeak = 1; 3724 } 3725 } else if (Opts.ObjCAutoRefCount) { 3726 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3727 } 3728 3729 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3730 Opts.ObjCSubscriptingLegacyRuntime = 3731 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3732 } 3733 3734 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3735 // Check that the version has 1 to 3 components and the minor and patch 3736 // versions fit in two decimal digits. 3737 VersionTuple GNUCVer; 3738 bool Invalid = GNUCVer.tryParse(A->getValue()); 3739 unsigned Major = GNUCVer.getMajor(); 3740 unsigned Minor = GNUCVer.getMinor().value_or(0); 3741 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3742 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3743 Diags.Report(diag::err_drv_invalid_value) 3744 << A->getAsString(Args) << A->getValue(); 3745 } 3746 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3747 } 3748 3749 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3750 Opts.IgnoreXCOFFVisibility = 1; 3751 3752 if (Args.hasArg(OPT_ftrapv)) { 3753 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3754 // Set the handler, if one is specified. 3755 Opts.OverflowHandler = 3756 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3757 } 3758 else if (Args.hasArg(OPT_fwrapv)) 3759 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3760 3761 Opts.MSCompatibilityVersion = 0; 3762 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3763 VersionTuple VT; 3764 if (VT.tryParse(A->getValue())) 3765 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3766 << A->getValue(); 3767 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3768 VT.getMinor().value_or(0) * 100000 + 3769 VT.getSubminor().value_or(0); 3770 } 3771 3772 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3773 // is specified, or -std is set to a conforming mode. 3774 // Trigraphs are disabled by default in c++1z onwards. 3775 // For z/OS, trigraphs are enabled by default (without regard to the above). 3776 Opts.Trigraphs = 3777 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3778 Opts.Trigraphs = 3779 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3780 3781 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3782 && Opts.OpenCLVersion == 200); 3783 3784 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3785 Opts.SYCLIsDevice || 3786 Args.hasArg(OPT_fconvergent_functions); 3787 3788 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3789 if (!Opts.NoBuiltin) 3790 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3791 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3792 if (A->getOption().matches(options::OPT_mlong_double_64)) 3793 Opts.LongDoubleSize = 64; 3794 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3795 Opts.LongDoubleSize = 80; 3796 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3797 Opts.LongDoubleSize = 128; 3798 else 3799 Opts.LongDoubleSize = 0; 3800 } 3801 if (Opts.FastRelaxedMath) 3802 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3803 3804 llvm::sort(Opts.ModuleFeatures); 3805 3806 // -mrtd option 3807 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3808 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3809 Diags.Report(diag::err_drv_argument_not_allowed_with) 3810 << A->getSpelling() << "-fdefault-calling-conv"; 3811 else { 3812 if (T.getArch() != llvm::Triple::x86) 3813 Diags.Report(diag::err_drv_argument_not_allowed_with) 3814 << A->getSpelling() << T.getTriple(); 3815 else 3816 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3817 } 3818 } 3819 3820 // Check if -fopenmp is specified and set default version to 5.0. 3821 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3822 // Check if -fopenmp-simd is specified. 3823 bool IsSimdSpecified = 3824 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3825 /*Default=*/false); 3826 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3827 Opts.OpenMPUseTLS = 3828 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3829 Opts.OpenMPIsDevice = 3830 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3831 Opts.OpenMPIRBuilder = 3832 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3833 bool IsTargetSpecified = 3834 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3835 3836 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3837 3838 if (Opts.OpenMP || Opts.OpenMPSimd) { 3839 if (int Version = getLastArgIntValue( 3840 Args, OPT_fopenmp_version_EQ, 3841 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3842 Opts.OpenMP = Version; 3843 // Provide diagnostic when a given target is not expected to be an OpenMP 3844 // device or host. 3845 if (!Opts.OpenMPIsDevice) { 3846 switch (T.getArch()) { 3847 default: 3848 break; 3849 // Add unsupported host targets here: 3850 case llvm::Triple::nvptx: 3851 case llvm::Triple::nvptx64: 3852 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3853 break; 3854 } 3855 } 3856 } 3857 3858 // Set the flag to prevent the implementation from emitting device exception 3859 // handling code for those requiring so. 3860 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3861 Opts.OpenCLCPlusPlus) { 3862 3863 Opts.Exceptions = 0; 3864 Opts.CXXExceptions = 0; 3865 } 3866 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3867 Opts.OpenMPCUDANumSMs = 3868 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3869 Opts.OpenMPCUDANumSMs, Diags); 3870 Opts.OpenMPCUDABlocksPerSM = 3871 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3872 Opts.OpenMPCUDABlocksPerSM, Diags); 3873 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3874 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3875 Opts.OpenMPCUDAReductionBufNum, Diags); 3876 } 3877 3878 // Set the value of the debugging flag used in the new offloading device RTL. 3879 // Set either by a specific value or to a default if not specified. 3880 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3881 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3882 Opts.OpenMPTargetDebug = getLastArgIntValue( 3883 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3884 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3885 Opts.OpenMPTargetDebug = 1; 3886 } 3887 3888 if (Opts.OpenMPIsDevice) { 3889 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3890 Opts.OpenMPTeamSubscription = true; 3891 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3892 Opts.OpenMPThreadSubscription = true; 3893 } 3894 3895 // Get the OpenMP target triples if any. 3896 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3897 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3898 auto getArchPtrSize = [](const llvm::Triple &T) { 3899 if (T.isArch16Bit()) 3900 return Arch16Bit; 3901 if (T.isArch32Bit()) 3902 return Arch32Bit; 3903 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3904 return Arch64Bit; 3905 }; 3906 3907 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3908 llvm::Triple TT(A->getValue(i)); 3909 3910 if (TT.getArch() == llvm::Triple::UnknownArch || 3911 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3912 TT.getArch() == llvm::Triple::nvptx || 3913 TT.getArch() == llvm::Triple::nvptx64 || 3914 TT.getArch() == llvm::Triple::amdgcn || 3915 TT.getArch() == llvm::Triple::x86 || 3916 TT.getArch() == llvm::Triple::x86_64)) 3917 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3918 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3919 Diags.Report(diag::err_drv_incompatible_omp_arch) 3920 << A->getValue(i) << T.str(); 3921 else 3922 Opts.OMPTargetTriples.push_back(TT); 3923 } 3924 } 3925 3926 // Get OpenMP host file path if any and report if a non existent file is 3927 // found 3928 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3929 Opts.OMPHostIRFile = A->getValue(); 3930 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3931 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3932 << Opts.OMPHostIRFile; 3933 } 3934 3935 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3936 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3937 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3938 3939 // FIXME: Eliminate this dependency. 3940 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3941 OptSize = getOptimizationLevelSize(Args); 3942 Opts.Optimize = Opt != 0; 3943 Opts.OptimizeSize = OptSize != 0; 3944 3945 // This is the __NO_INLINE__ define, which just depends on things like the 3946 // optimization level and -fno-inline, not actually whether the backend has 3947 // inlining enabled. 3948 Opts.NoInlineDefine = !Opts.Optimize; 3949 if (Arg *InlineArg = Args.getLastArg( 3950 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3951 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3952 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3953 Opts.NoInlineDefine = true; 3954 3955 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3956 StringRef Val = A->getValue(); 3957 if (Val == "fast") 3958 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3959 else if (Val == "on") 3960 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3961 else if (Val == "off") 3962 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3963 else if (Val == "fast-honor-pragmas") 3964 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3965 else 3966 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3967 } 3968 3969 // Parse -fsanitize= arguments. 3970 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3971 Diags, Opts.Sanitize); 3972 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3973 std::vector<std::string> systemIgnorelists = 3974 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3975 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3976 systemIgnorelists.begin(), 3977 systemIgnorelists.end()); 3978 3979 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3980 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3981 3982 StringRef Ver = A->getValue(); 3983 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3984 unsigned Major, Minor = 0; 3985 3986 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3987 // y or y.0 (4 <= y <= current version). 3988 if (!VerParts.first.startswith("0") && 3989 !VerParts.first.getAsInteger(10, Major) && 3990 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3991 (Major == 3 ? VerParts.second.size() == 1 && 3992 !VerParts.second.getAsInteger(10, Minor) 3993 : VerParts.first.size() == Ver.size() || 3994 VerParts.second == "0")) { 3995 // Got a valid version number. 3996 if (Major == 3 && Minor <= 8) 3997 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3998 else if (Major <= 4) 3999 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4000 else if (Major <= 6) 4001 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4002 else if (Major <= 7) 4003 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4004 else if (Major <= 9) 4005 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4006 else if (Major <= 11) 4007 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4008 else if (Major <= 12) 4009 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4010 else if (Major <= 14) 4011 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4012 else if (Major <= 15) 4013 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4014 } else if (Ver != "latest") { 4015 Diags.Report(diag::err_drv_invalid_value) 4016 << A->getAsString(Args) << A->getValue(); 4017 } 4018 } 4019 4020 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4021 StringRef SignScope = A->getValue(); 4022 4023 if (SignScope.equals_insensitive("none")) 4024 Opts.setSignReturnAddressScope( 4025 LangOptions::SignReturnAddressScopeKind::None); 4026 else if (SignScope.equals_insensitive("all")) 4027 Opts.setSignReturnAddressScope( 4028 LangOptions::SignReturnAddressScopeKind::All); 4029 else if (SignScope.equals_insensitive("non-leaf")) 4030 Opts.setSignReturnAddressScope( 4031 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4032 else 4033 Diags.Report(diag::err_drv_invalid_value) 4034 << A->getAsString(Args) << SignScope; 4035 4036 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4037 StringRef SignKey = A->getValue(); 4038 if (!SignScope.empty() && !SignKey.empty()) { 4039 if (SignKey.equals_insensitive("a_key")) 4040 Opts.setSignReturnAddressKey( 4041 LangOptions::SignReturnAddressKeyKind::AKey); 4042 else if (SignKey.equals_insensitive("b_key")) 4043 Opts.setSignReturnAddressKey( 4044 LangOptions::SignReturnAddressKeyKind::BKey); 4045 else 4046 Diags.Report(diag::err_drv_invalid_value) 4047 << A->getAsString(Args) << SignKey; 4048 } 4049 } 4050 } 4051 4052 // The value can be empty, which indicates the system default should be used. 4053 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4054 if (!CXXABI.empty()) { 4055 if (!TargetCXXABI::isABI(CXXABI)) { 4056 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4057 } else { 4058 auto Kind = TargetCXXABI::getKind(CXXABI); 4059 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4060 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4061 else 4062 Opts.CXXABI = Kind; 4063 } 4064 } 4065 4066 Opts.RelativeCXXABIVTables = 4067 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4068 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4069 TargetCXXABI::usesRelativeVTables(T)); 4070 4071 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4072 auto Split = StringRef(A).split('='); 4073 Opts.MacroPrefixMap.insert( 4074 {std::string(Split.first), std::string(Split.second)}); 4075 } 4076 4077 Opts.UseTargetPathSeparator = 4078 !Args.getLastArg(OPT_fno_file_reproducible) && 4079 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4080 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4081 Args.getLastArg(OPT_ffile_reproducible)); 4082 4083 // Error if -mvscale-min is unbounded. 4084 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4085 unsigned VScaleMin; 4086 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4087 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4088 } 4089 4090 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4091 std::ifstream SeedFile(A->getValue(0)); 4092 4093 if (!SeedFile.is_open()) 4094 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4095 << A->getValue(0); 4096 4097 std::getline(SeedFile, Opts.RandstructSeed); 4098 } 4099 4100 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4101 Opts.RandstructSeed = A->getValue(0); 4102 4103 // Validate options for HLSL 4104 if (Opts.HLSL) { 4105 bool SupportedTarget = T.getArch() == llvm::Triple::dxil && 4106 T.getOS() == llvm::Triple::ShaderModel; 4107 if (!SupportedTarget) 4108 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4109 } 4110 4111 return Diags.getNumErrors() == NumErrorsBefore; 4112 } 4113 4114 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4115 switch (Action) { 4116 case frontend::ASTDeclList: 4117 case frontend::ASTDump: 4118 case frontend::ASTPrint: 4119 case frontend::ASTView: 4120 case frontend::EmitAssembly: 4121 case frontend::EmitBC: 4122 case frontend::EmitHTML: 4123 case frontend::EmitLLVM: 4124 case frontend::EmitLLVMOnly: 4125 case frontend::EmitCodeGenOnly: 4126 case frontend::EmitObj: 4127 case frontend::ExtractAPI: 4128 case frontend::FixIt: 4129 case frontend::GenerateModule: 4130 case frontend::GenerateModuleInterface: 4131 case frontend::GenerateHeaderModule: 4132 case frontend::GenerateHeaderUnit: 4133 case frontend::GeneratePCH: 4134 case frontend::GenerateInterfaceStubs: 4135 case frontend::ParseSyntaxOnly: 4136 case frontend::ModuleFileInfo: 4137 case frontend::VerifyPCH: 4138 case frontend::PluginAction: 4139 case frontend::RewriteObjC: 4140 case frontend::RewriteTest: 4141 case frontend::RunAnalysis: 4142 case frontend::TemplightDump: 4143 case frontend::MigrateSource: 4144 return false; 4145 4146 case frontend::DumpCompilerOptions: 4147 case frontend::DumpRawTokens: 4148 case frontend::DumpTokens: 4149 case frontend::InitOnly: 4150 case frontend::PrintPreamble: 4151 case frontend::PrintPreprocessedInput: 4152 case frontend::RewriteMacros: 4153 case frontend::RunPreprocessorOnly: 4154 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4155 return true; 4156 } 4157 llvm_unreachable("invalid frontend action"); 4158 } 4159 4160 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4161 SmallVectorImpl<const char *> &Args, 4162 CompilerInvocation::StringAllocator SA, 4163 const LangOptions &LangOpts, 4164 const FrontendOptions &FrontendOpts, 4165 const CodeGenOptions &CodeGenOpts) { 4166 PreprocessorOptions *PreprocessorOpts = &Opts; 4167 4168 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4169 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4170 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4171 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4172 MERGER, EXTRACTOR, TABLE_INDEX) \ 4173 GENERATE_OPTION_WITH_MARSHALLING( \ 4174 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4175 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4176 #include "clang/Driver/Options.inc" 4177 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4178 4179 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4180 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4181 4182 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4183 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4184 4185 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4186 GenerateArg(Args, OPT_preamble_bytes_EQ, 4187 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4188 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4189 SA); 4190 4191 for (const auto &M : Opts.Macros) { 4192 // Don't generate __CET__ macro definitions. They are implied by the 4193 // -fcf-protection option that is generated elsewhere. 4194 if (M.first == "__CET__=1" && !M.second && 4195 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4196 continue; 4197 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4198 !CodeGenOpts.CFProtectionBranch) 4199 continue; 4200 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4201 CodeGenOpts.CFProtectionBranch) 4202 continue; 4203 4204 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4205 } 4206 4207 for (const auto &I : Opts.Includes) { 4208 // Don't generate OpenCL includes. They are implied by other flags that are 4209 // generated elsewhere. 4210 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4211 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4212 I == "opencl-c.h")) 4213 continue; 4214 // Don't generate HLSL includes. They are implied by other flags that are 4215 // generated elsewhere. 4216 if (LangOpts.HLSL && I == "hlsl.h") 4217 continue; 4218 4219 GenerateArg(Args, OPT_include, I, SA); 4220 } 4221 4222 for (const auto &CI : Opts.ChainedIncludes) 4223 GenerateArg(Args, OPT_chain_include, CI, SA); 4224 4225 for (const auto &RF : Opts.RemappedFiles) 4226 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4227 4228 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4229 // generated elsewhere. 4230 } 4231 4232 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4233 DiagnosticsEngine &Diags, 4234 frontend::ActionKind Action, 4235 const FrontendOptions &FrontendOpts) { 4236 unsigned NumErrorsBefore = Diags.getNumErrors(); 4237 4238 PreprocessorOptions *PreprocessorOpts = &Opts; 4239 4240 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4241 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4242 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4243 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4244 MERGER, EXTRACTOR, TABLE_INDEX) \ 4245 PARSE_OPTION_WITH_MARSHALLING( \ 4246 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4247 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4248 #include "clang/Driver/Options.inc" 4249 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4250 4251 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4252 Args.hasArg(OPT_pch_through_hdrstop_use); 4253 4254 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4255 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4256 4257 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4258 StringRef Value(A->getValue()); 4259 size_t Comma = Value.find(','); 4260 unsigned Bytes = 0; 4261 unsigned EndOfLine = 0; 4262 4263 if (Comma == StringRef::npos || 4264 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4265 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4266 Diags.Report(diag::err_drv_preamble_format); 4267 else { 4268 Opts.PrecompiledPreambleBytes.first = Bytes; 4269 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4270 } 4271 } 4272 4273 // Add the __CET__ macro if a CFProtection option is set. 4274 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4275 StringRef Name = A->getValue(); 4276 if (Name == "branch") 4277 Opts.addMacroDef("__CET__=1"); 4278 else if (Name == "return") 4279 Opts.addMacroDef("__CET__=2"); 4280 else if (Name == "full") 4281 Opts.addMacroDef("__CET__=3"); 4282 } 4283 4284 // Add macros from the command line. 4285 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4286 if (A->getOption().matches(OPT_D)) 4287 Opts.addMacroDef(A->getValue()); 4288 else 4289 Opts.addMacroUndef(A->getValue()); 4290 } 4291 4292 // Add the ordered list of -includes. 4293 for (const auto *A : Args.filtered(OPT_include)) 4294 Opts.Includes.emplace_back(A->getValue()); 4295 4296 for (const auto *A : Args.filtered(OPT_chain_include)) 4297 Opts.ChainedIncludes.emplace_back(A->getValue()); 4298 4299 for (const auto *A : Args.filtered(OPT_remap_file)) { 4300 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4301 4302 if (Split.second.empty()) { 4303 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4304 continue; 4305 } 4306 4307 Opts.addRemappedFile(Split.first, Split.second); 4308 } 4309 4310 // Always avoid lexing editor placeholders when we're just running the 4311 // preprocessor as we never want to emit the 4312 // "editor placeholder in source file" error in PP only mode. 4313 if (isStrictlyPreprocessorAction(Action)) 4314 Opts.LexEditorPlaceholders = false; 4315 4316 return Diags.getNumErrors() == NumErrorsBefore; 4317 } 4318 4319 static void GeneratePreprocessorOutputArgs( 4320 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4321 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4322 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4323 4324 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4325 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4326 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4327 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4328 MERGER, EXTRACTOR, TABLE_INDEX) \ 4329 GENERATE_OPTION_WITH_MARSHALLING( \ 4330 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4331 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4332 #include "clang/Driver/Options.inc" 4333 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4334 4335 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4336 if (Generate_dM) 4337 GenerateArg(Args, OPT_dM, SA); 4338 if (!Generate_dM && Opts.ShowMacros) 4339 GenerateArg(Args, OPT_dD, SA); 4340 if (Opts.DirectivesOnly) 4341 GenerateArg(Args, OPT_fdirectives_only, SA); 4342 } 4343 4344 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4345 ArgList &Args, DiagnosticsEngine &Diags, 4346 frontend::ActionKind Action) { 4347 unsigned NumErrorsBefore = Diags.getNumErrors(); 4348 4349 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4350 4351 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4352 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4353 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4354 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4355 MERGER, EXTRACTOR, TABLE_INDEX) \ 4356 PARSE_OPTION_WITH_MARSHALLING( \ 4357 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4358 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4359 #include "clang/Driver/Options.inc" 4360 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4361 4362 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4363 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4364 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4365 4366 return Diags.getNumErrors() == NumErrorsBefore; 4367 } 4368 4369 static void GenerateTargetArgs(const TargetOptions &Opts, 4370 SmallVectorImpl<const char *> &Args, 4371 CompilerInvocation::StringAllocator SA) { 4372 const TargetOptions *TargetOpts = &Opts; 4373 #define TARGET_OPTION_WITH_MARSHALLING( \ 4374 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4375 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4376 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4377 MERGER, EXTRACTOR, TABLE_INDEX) \ 4378 GENERATE_OPTION_WITH_MARSHALLING( \ 4379 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4380 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4381 #include "clang/Driver/Options.inc" 4382 #undef TARGET_OPTION_WITH_MARSHALLING 4383 4384 if (!Opts.SDKVersion.empty()) 4385 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4386 SA); 4387 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4388 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4389 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4390 } 4391 4392 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4393 DiagnosticsEngine &Diags) { 4394 unsigned NumErrorsBefore = Diags.getNumErrors(); 4395 4396 TargetOptions *TargetOpts = &Opts; 4397 4398 #define TARGET_OPTION_WITH_MARSHALLING( \ 4399 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4400 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4401 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4402 MERGER, EXTRACTOR, TABLE_INDEX) \ 4403 PARSE_OPTION_WITH_MARSHALLING( \ 4404 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4405 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4406 #include "clang/Driver/Options.inc" 4407 #undef TARGET_OPTION_WITH_MARSHALLING 4408 4409 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4410 llvm::VersionTuple Version; 4411 if (Version.tryParse(A->getValue())) 4412 Diags.Report(diag::err_drv_invalid_value) 4413 << A->getAsString(Args) << A->getValue(); 4414 else 4415 Opts.SDKVersion = Version; 4416 } 4417 if (Arg *A = 4418 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4419 llvm::VersionTuple Version; 4420 if (Version.tryParse(A->getValue())) 4421 Diags.Report(diag::err_drv_invalid_value) 4422 << A->getAsString(Args) << A->getValue(); 4423 else 4424 Opts.DarwinTargetVariantSDKVersion = Version; 4425 } 4426 4427 return Diags.getNumErrors() == NumErrorsBefore; 4428 } 4429 4430 bool CompilerInvocation::CreateFromArgsImpl( 4431 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4432 DiagnosticsEngine &Diags, const char *Argv0) { 4433 unsigned NumErrorsBefore = Diags.getNumErrors(); 4434 4435 // Parse the arguments. 4436 const OptTable &Opts = getDriverOptTable(); 4437 const unsigned IncludedFlagsBitmask = options::CC1Option; 4438 unsigned MissingArgIndex, MissingArgCount; 4439 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4440 MissingArgCount, IncludedFlagsBitmask); 4441 LangOptions &LangOpts = *Res.getLangOpts(); 4442 4443 // Check for missing argument error. 4444 if (MissingArgCount) 4445 Diags.Report(diag::err_drv_missing_argument) 4446 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4447 4448 // Issue errors on unknown arguments. 4449 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4450 auto ArgString = A->getAsString(Args); 4451 std::string Nearest; 4452 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4453 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4454 else 4455 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4456 << ArgString << Nearest; 4457 } 4458 4459 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4460 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4461 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4462 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4463 /*DefaultDiagColor=*/false); 4464 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4465 // FIXME: We shouldn't have to pass the DashX option around here 4466 InputKind DashX = Res.getFrontendOpts().DashX; 4467 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4468 llvm::Triple T(Res.getTargetOpts().Triple); 4469 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4470 Res.getFileSystemOpts().WorkingDir); 4471 4472 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4473 Diags); 4474 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4475 LangOpts.ObjCExceptions = 1; 4476 4477 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4478 if (Warning == "misexpect" && 4479 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4480 Res.getCodeGenOpts().MisExpect = true; 4481 } 4482 } 4483 4484 if (LangOpts.CUDA) { 4485 // During CUDA device-side compilation, the aux triple is the 4486 // triple used for host compilation. 4487 if (LangOpts.CUDAIsDevice) 4488 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4489 } 4490 4491 // Set the triple of the host for OpenMP device compile. 4492 if (LangOpts.OpenMPIsDevice) 4493 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4494 4495 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4496 Res.getFrontendOpts().OutputFile, LangOpts); 4497 4498 // FIXME: Override value name discarding when asan or msan is used because the 4499 // backend passes depend on the name of the alloca in order to print out 4500 // names. 4501 Res.getCodeGenOpts().DiscardValueNames &= 4502 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4503 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4504 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4505 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4506 4507 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4508 Res.getFrontendOpts().ProgramAction, 4509 Res.getFrontendOpts()); 4510 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4511 Res.getFrontendOpts().ProgramAction); 4512 4513 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4514 Res.getFrontendOpts().ProgramAction, 4515 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4516 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4517 Res.getDependencyOutputOpts().Targets.empty()) 4518 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4519 4520 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4521 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4522 !Res.getLangOpts()->Sanitize.empty()) { 4523 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4524 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4525 } 4526 4527 // Store the command-line for using in the CodeView backend. 4528 Res.getCodeGenOpts().Argv0 = Argv0; 4529 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4530 4531 FixupInvocation(Res, Diags, Args, DashX); 4532 4533 return Diags.getNumErrors() == NumErrorsBefore; 4534 } 4535 4536 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4537 ArrayRef<const char *> CommandLineArgs, 4538 DiagnosticsEngine &Diags, 4539 const char *Argv0) { 4540 CompilerInvocation DummyInvocation; 4541 4542 return RoundTrip( 4543 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4544 DiagnosticsEngine &Diags, const char *Argv0) { 4545 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4546 }, 4547 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4548 StringAllocator SA) { 4549 Args.push_back("-cc1"); 4550 Invocation.generateCC1CommandLine(Args, SA); 4551 }, 4552 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4553 } 4554 4555 std::string CompilerInvocation::getModuleHash() const { 4556 // FIXME: Consider using SHA1 instead of MD5. 4557 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4558 4559 // Note: For QoI reasons, the things we use as a hash here should all be 4560 // dumped via the -module-info flag. 4561 4562 // Start the signature with the compiler version. 4563 HBuilder.add(getClangFullRepositoryVersion()); 4564 4565 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4566 // and getClangFullRepositoryVersion() doesn't include git revision. 4567 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4568 4569 // Extend the signature with the language options 4570 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4571 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4572 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4573 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4574 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4575 #include "clang/Basic/LangOptions.def" 4576 4577 HBuilder.addRange(LangOpts->ModuleFeatures); 4578 4579 HBuilder.add(LangOpts->ObjCRuntime); 4580 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4581 4582 // Extend the signature with the target options. 4583 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4584 TargetOpts->ABI); 4585 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4586 4587 // Extend the signature with preprocessor options. 4588 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4589 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4590 4591 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4592 for (const auto &Macro : getPreprocessorOpts().Macros) { 4593 // If we're supposed to ignore this macro for the purposes of modules, 4594 // don't put it into the hash. 4595 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4596 // Check whether we're ignoring this macro. 4597 StringRef MacroDef = Macro.first; 4598 if (hsOpts.ModulesIgnoreMacros.count( 4599 llvm::CachedHashString(MacroDef.split('=').first))) 4600 continue; 4601 } 4602 4603 HBuilder.add(Macro); 4604 } 4605 4606 // Extend the signature with the sysroot and other header search options. 4607 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4608 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4609 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4610 hsOpts.ModulesValidateDiagnosticOptions); 4611 HBuilder.add(hsOpts.ResourceDir); 4612 4613 if (hsOpts.ModulesStrictContextHash) { 4614 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4615 HBuilder.addRange(hsOpts.UserEntries); 4616 4617 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4618 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4619 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4620 HBuilder.add(diagOpts.get##Name()); 4621 #include "clang/Basic/DiagnosticOptions.def" 4622 #undef DIAGOPT 4623 #undef ENUM_DIAGOPT 4624 } 4625 4626 // Extend the signature with the user build path. 4627 HBuilder.add(hsOpts.ModuleUserBuildPath); 4628 4629 // Extend the signature with the module file extensions. 4630 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4631 ext->hashExtension(HBuilder); 4632 4633 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4634 // affects the debug info in the PCM. 4635 if (getCodeGenOpts().DebugTypeExtRefs) 4636 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4637 4638 // Extend the signature with the enabled sanitizers, if at least one is 4639 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4640 SanitizerSet SanHash = LangOpts->Sanitize; 4641 SanHash.clear(getPPTransparentSanitizers()); 4642 if (!SanHash.empty()) 4643 HBuilder.add(SanHash.Mask); 4644 4645 llvm::MD5::MD5Result Result; 4646 HBuilder.getHasher().final(Result); 4647 uint64_t Hash = Result.high() ^ Result.low(); 4648 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4649 } 4650 4651 void CompilerInvocation::generateCC1CommandLine( 4652 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4653 llvm::Triple T(TargetOpts->Triple); 4654 4655 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4656 GenerateMigratorArgs(MigratorOpts, Args, SA); 4657 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4658 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4659 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4660 GenerateTargetArgs(*TargetOpts, Args, SA); 4661 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4662 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4663 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4664 &*LangOpts); 4665 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4666 CodeGenOpts); 4667 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4668 FrontendOpts.ProgramAction); 4669 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4670 } 4671 4672 std::vector<std::string> CompilerInvocation::getCC1CommandLine() const { 4673 // Set up string allocator. 4674 llvm::BumpPtrAllocator Alloc; 4675 llvm::StringSaver Strings(Alloc); 4676 auto SA = [&Strings](const Twine &Arg) { return Strings.save(Arg).data(); }; 4677 4678 // Synthesize full command line from the CompilerInvocation, including "-cc1". 4679 SmallVector<const char *, 32> Args{"-cc1"}; 4680 generateCC1CommandLine(Args, SA); 4681 4682 // Convert arguments to the return type. 4683 return std::vector<std::string>{Args.begin(), Args.end()}; 4684 } 4685 4686 void CompilerInvocation::resetNonModularOptions() { 4687 getLangOpts()->resetNonModularOptions(); 4688 getPreprocessorOpts().resetNonModularOptions(); 4689 } 4690 4691 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4692 getLangOpts()->ImplicitModules = false; 4693 getHeaderSearchOpts().ImplicitModuleMaps = false; 4694 getHeaderSearchOpts().ModuleCachePath.clear(); 4695 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4696 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4697 // The specific values we canonicalize to for pruning don't affect behaviour, 4698 /// so use the default values so they may be dropped from the command-line. 4699 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4700 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 4701 } 4702 4703 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4704 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4705 DiagnosticsEngine &Diags) { 4706 return createVFSFromCompilerInvocation(CI, Diags, 4707 llvm::vfs::getRealFileSystem()); 4708 } 4709 4710 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4711 clang::createVFSFromCompilerInvocation( 4712 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4713 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4714 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4715 return BaseFS; 4716 4717 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4718 // earlier vfs files are on the bottom 4719 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4720 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4721 Result->getBufferForFile(File); 4722 if (!Buffer) { 4723 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4724 continue; 4725 } 4726 4727 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4728 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4729 /*DiagContext*/ nullptr, Result); 4730 if (!FS) { 4731 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4732 continue; 4733 } 4734 4735 Result = FS; 4736 } 4737 return Result; 4738 } 4739