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