1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/HashBuilder.h" 82 #include "llvm/Support/Host.h" 83 #include "llvm/Support/MathExtras.h" 84 #include "llvm/Support/MemoryBuffer.h" 85 #include "llvm/Support/Path.h" 86 #include "llvm/Support/Process.h" 87 #include "llvm/Support/Regex.h" 88 #include "llvm/Support/VersionTuple.h" 89 #include "llvm/Support/VirtualFileSystem.h" 90 #include "llvm/Support/raw_ostream.h" 91 #include "llvm/Target/TargetOptions.h" 92 #include <algorithm> 93 #include <atomic> 94 #include <cassert> 95 #include <cstddef> 96 #include <cstring> 97 #include <fstream> 98 #include <memory> 99 #include <string> 100 #include <tuple> 101 #include <type_traits> 102 #include <utility> 103 #include <vector> 104 105 using namespace clang; 106 using namespace driver; 107 using namespace options; 108 using namespace llvm::opt; 109 110 //===----------------------------------------------------------------------===// 111 // Helpers. 112 //===----------------------------------------------------------------------===// 113 114 // Parse misexpect tolerance argument value. 115 // Valid option values are integers in the range [0, 100) 116 inline Expected<Optional<uint32_t>> parseToleranceOption(StringRef Arg) { 117 uint32_t Val; 118 if (Arg.getAsInteger(10, Val)) 119 return llvm::createStringError(llvm::inconvertibleErrorCode(), 120 "Not an integer: %s", Arg.data()); 121 return Val; 122 } 123 124 //===----------------------------------------------------------------------===// 125 // Initialization. 126 //===----------------------------------------------------------------------===// 127 128 CompilerInvocationRefBase::CompilerInvocationRefBase() 129 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 130 DiagnosticOpts(new DiagnosticOptions()), 131 HeaderSearchOpts(new HeaderSearchOptions()), 132 PreprocessorOpts(new PreprocessorOptions()), 133 AnalyzerOpts(new AnalyzerOptions()) {} 134 135 CompilerInvocationRefBase::CompilerInvocationRefBase( 136 const CompilerInvocationRefBase &X) 137 : LangOpts(new LangOptions(*X.getLangOpts())), 138 TargetOpts(new TargetOptions(X.getTargetOpts())), 139 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 140 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 141 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 142 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 143 144 CompilerInvocationRefBase::CompilerInvocationRefBase( 145 CompilerInvocationRefBase &&X) = default; 146 147 CompilerInvocationRefBase & 148 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 149 LangOpts.swap(X.LangOpts); 150 TargetOpts.swap(X.TargetOpts); 151 DiagnosticOpts.swap(X.DiagnosticOpts); 152 HeaderSearchOpts.swap(X.HeaderSearchOpts); 153 PreprocessorOpts.swap(X.PreprocessorOpts); 154 AnalyzerOpts.swap(X.AnalyzerOpts); 155 return *this; 156 } 157 158 CompilerInvocationRefBase & 159 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 160 161 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 162 163 //===----------------------------------------------------------------------===// 164 // Normalizers 165 //===----------------------------------------------------------------------===// 166 167 #define SIMPLE_ENUM_VALUE_TABLE 168 #include "clang/Driver/Options.inc" 169 #undef SIMPLE_ENUM_VALUE_TABLE 170 171 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 172 unsigned TableIndex, 173 const ArgList &Args, 174 DiagnosticsEngine &Diags) { 175 if (Args.hasArg(Opt)) 176 return true; 177 return None; 178 } 179 180 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 181 const ArgList &Args, 182 DiagnosticsEngine &) { 183 if (Args.hasArg(Opt)) 184 return false; 185 return None; 186 } 187 188 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 189 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 190 /// unnecessary template instantiations and just ignore it with a variadic 191 /// argument. 192 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 193 const char *Spelling, 194 CompilerInvocation::StringAllocator, 195 Option::OptionClass, unsigned, /*T*/...) { 196 Args.push_back(Spelling); 197 } 198 199 template <typename T> static constexpr bool is_uint64_t_convertible() { 200 return !std::is_same<T, uint64_t>::value && 201 llvm::is_integral_or_enum<T>::value; 202 } 203 204 template <typename T, 205 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 206 static auto makeFlagToValueNormalizer(T Value) { 207 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 208 DiagnosticsEngine &) -> Optional<T> { 209 if (Args.hasArg(Opt)) 210 return Value; 211 return None; 212 }; 213 } 214 215 template <typename T, 216 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 217 static auto makeFlagToValueNormalizer(T Value) { 218 return makeFlagToValueNormalizer(uint64_t(Value)); 219 } 220 221 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 222 OptSpecifier OtherOpt) { 223 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 224 const ArgList &Args, 225 DiagnosticsEngine &) -> Optional<bool> { 226 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 227 return A->getOption().matches(Opt) ? Value : OtherValue; 228 } 229 return None; 230 }; 231 } 232 233 static auto makeBooleanOptionDenormalizer(bool Value) { 234 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 235 CompilerInvocation::StringAllocator, Option::OptionClass, 236 unsigned, bool KeyPath) { 237 if (KeyPath == Value) 238 Args.push_back(Spelling); 239 }; 240 } 241 242 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 243 const char *Spelling, 244 CompilerInvocation::StringAllocator SA, 245 Option::OptionClass OptClass, unsigned, 246 const Twine &Value) { 247 switch (OptClass) { 248 case Option::SeparateClass: 249 case Option::JoinedOrSeparateClass: 250 case Option::JoinedAndSeparateClass: 251 Args.push_back(Spelling); 252 Args.push_back(SA(Value)); 253 break; 254 case Option::JoinedClass: 255 case Option::CommaJoinedClass: 256 Args.push_back(SA(Twine(Spelling) + Value)); 257 break; 258 default: 259 llvm_unreachable("Cannot denormalize an option with option class " 260 "incompatible with string denormalization."); 261 } 262 } 263 264 template <typename T> 265 static void 266 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 267 CompilerInvocation::StringAllocator SA, 268 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 269 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 270 } 271 272 static Optional<SimpleEnumValue> 273 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 274 for (int I = 0, E = Table.Size; I != E; ++I) 275 if (Name == Table.Table[I].Name) 276 return Table.Table[I]; 277 278 return None; 279 } 280 281 static Optional<SimpleEnumValue> 282 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 283 for (int I = 0, E = Table.Size; I != E; ++I) 284 if (Value == Table.Table[I].Value) 285 return Table.Table[I]; 286 287 return None; 288 } 289 290 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 291 unsigned TableIndex, 292 const ArgList &Args, 293 DiagnosticsEngine &Diags) { 294 assert(TableIndex < SimpleEnumValueTablesSize); 295 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 296 297 auto *Arg = Args.getLastArg(Opt); 298 if (!Arg) 299 return None; 300 301 StringRef ArgValue = Arg->getValue(); 302 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 303 return MaybeEnumVal->Value; 304 305 Diags.Report(diag::err_drv_invalid_value) 306 << Arg->getAsString(Args) << ArgValue; 307 return None; 308 } 309 310 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 311 const char *Spelling, 312 CompilerInvocation::StringAllocator SA, 313 Option::OptionClass OptClass, 314 unsigned TableIndex, unsigned Value) { 315 assert(TableIndex < SimpleEnumValueTablesSize); 316 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 317 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 318 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 319 MaybeEnumVal->Name); 320 } else { 321 llvm_unreachable("The simple enum value was not correctly defined in " 322 "the tablegen option description"); 323 } 324 } 325 326 template <typename T> 327 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 328 const char *Spelling, 329 CompilerInvocation::StringAllocator SA, 330 Option::OptionClass OptClass, 331 unsigned TableIndex, T Value) { 332 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 333 static_cast<unsigned>(Value)); 334 } 335 336 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 337 const ArgList &Args, 338 DiagnosticsEngine &Diags) { 339 auto *Arg = Args.getLastArg(Opt); 340 if (!Arg) 341 return None; 342 return std::string(Arg->getValue()); 343 } 344 345 template <typename IntTy> 346 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 347 const ArgList &Args, 348 DiagnosticsEngine &Diags) { 349 auto *Arg = Args.getLastArg(Opt); 350 if (!Arg) 351 return None; 352 IntTy Res; 353 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 354 Diags.Report(diag::err_drv_invalid_int_value) 355 << Arg->getAsString(Args) << Arg->getValue(); 356 return None; 357 } 358 return Res; 359 } 360 361 static Optional<std::vector<std::string>> 362 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 363 DiagnosticsEngine &) { 364 return Args.getAllArgValues(Opt); 365 } 366 367 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 368 const char *Spelling, 369 CompilerInvocation::StringAllocator SA, 370 Option::OptionClass OptClass, 371 unsigned TableIndex, 372 const std::vector<std::string> &Values) { 373 switch (OptClass) { 374 case Option::CommaJoinedClass: { 375 std::string CommaJoinedValue; 376 if (!Values.empty()) { 377 CommaJoinedValue.append(Values.front()); 378 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 379 CommaJoinedValue.append(","); 380 CommaJoinedValue.append(Value); 381 } 382 } 383 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 384 TableIndex, CommaJoinedValue); 385 break; 386 } 387 case Option::JoinedClass: 388 case Option::SeparateClass: 389 case Option::JoinedOrSeparateClass: 390 for (const std::string &Value : Values) 391 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 392 break; 393 default: 394 llvm_unreachable("Cannot denormalize an option with option class " 395 "incompatible with string vector denormalization."); 396 } 397 } 398 399 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 400 const ArgList &Args, 401 DiagnosticsEngine &Diags) { 402 auto *Arg = Args.getLastArg(Opt); 403 if (!Arg) 404 return None; 405 return llvm::Triple::normalize(Arg->getValue()); 406 } 407 408 template <typename T, typename U> 409 static T mergeForwardValue(T KeyPath, U Value) { 410 return static_cast<T>(Value); 411 } 412 413 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 414 return KeyPath | Value; 415 } 416 417 template <typename T> static T extractForwardValue(T KeyPath) { 418 return KeyPath; 419 } 420 421 template <typename T, typename U, U Value> 422 static T extractMaskValue(T KeyPath) { 423 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 424 } 425 426 #define PARSE_OPTION_WITH_MARSHALLING( \ 427 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 428 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 429 if ((FLAGS)&options::CC1Option) { \ 430 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 431 if (IMPLIED_CHECK) \ 432 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 433 if (SHOULD_PARSE) \ 434 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 435 KEYPATH = \ 436 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 437 } 438 439 // Capture the extracted value as a lambda argument to avoid potential issues 440 // with lifetime extension of the reference. 441 #define GENERATE_OPTION_WITH_MARSHALLING( \ 442 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 443 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 444 TABLE_INDEX) \ 445 if ((FLAGS)&options::CC1Option) { \ 446 [&](const auto &Extracted) { \ 447 if (ALWAYS_EMIT || \ 448 (Extracted != \ 449 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 450 : (DEFAULT_VALUE)))) \ 451 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 452 TABLE_INDEX, Extracted); \ 453 }(EXTRACTOR(KEYPATH)); \ 454 } 455 456 static StringRef GetInputKindName(InputKind IK); 457 458 static bool FixupInvocation(CompilerInvocation &Invocation, 459 DiagnosticsEngine &Diags, const ArgList &Args, 460 InputKind IK) { 461 unsigned NumErrorsBefore = Diags.getNumErrors(); 462 463 LangOptions &LangOpts = *Invocation.getLangOpts(); 464 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 465 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 466 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 467 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 468 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 469 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 470 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 471 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 472 if (FrontendOpts.ShowStats) 473 CodeGenOpts.ClearASTBeforeBackend = false; 474 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 475 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 476 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 477 LangOpts.CurrentModule = LangOpts.ModuleName; 478 479 llvm::Triple T(TargetOpts.Triple); 480 llvm::Triple::ArchType Arch = T.getArch(); 481 482 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 483 484 if (LangOpts.getExceptionHandling() != 485 LangOptions::ExceptionHandlingKind::None && 486 T.isWindowsMSVCEnvironment()) 487 Diags.Report(diag::err_fe_invalid_exception_model) 488 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 489 490 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 491 Diags.Report(diag::warn_c_kext); 492 493 if (Args.hasArg(OPT_fconcepts_ts)) 494 Diags.Report(diag::warn_fe_concepts_ts_flag); 495 496 if (LangOpts.NewAlignOverride && 497 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 498 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 499 Diags.Report(diag::err_fe_invalid_alignment) 500 << A->getAsString(Args) << A->getValue(); 501 LangOpts.NewAlignOverride = 0; 502 } 503 504 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 505 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 506 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 507 << "-fsycl-is-host"; 508 509 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 510 Diags.Report(diag::err_drv_argument_not_allowed_with) 511 << "-fgnu89-inline" << GetInputKindName(IK); 512 513 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 514 Diags.Report(diag::err_drv_argument_not_allowed_with) 515 << "-hlsl-entry" << GetInputKindName(IK); 516 517 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 518 Diags.Report(diag::warn_ignored_hip_only_option) 519 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 520 521 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 522 Diags.Report(diag::warn_ignored_hip_only_option) 523 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 524 525 // When these options are used, the compiler is allowed to apply 526 // optimizations that may affect the final result. For example 527 // (x+y)+z is transformed to x+(y+z) but may not give the same 528 // final result; it's not value safe. 529 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 530 // or NaN. Final result may then differ. An error is issued when the eval 531 // method is set with one of these options. 532 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 533 if (LangOpts.ApproxFunc) 534 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 535 if (LangOpts.AllowFPReassoc) 536 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 537 if (LangOpts.AllowRecip) 538 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 539 } 540 541 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 542 // This option should be deprecated for CL > 1.0 because 543 // this option was added for compatibility with OpenCL 1.0. 544 if (Args.getLastArg(OPT_cl_strict_aliasing) && 545 (LangOpts.getOpenCLCompatibleVersion() > 100)) 546 Diags.Report(diag::warn_option_invalid_ocl_version) 547 << LangOpts.getOpenCLVersionString() 548 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 549 550 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 551 auto DefaultCC = LangOpts.getDefaultCallingConv(); 552 553 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 554 DefaultCC == LangOptions::DCC_StdCall) && 555 Arch != llvm::Triple::x86; 556 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 557 DefaultCC == LangOptions::DCC_RegCall) && 558 !T.isX86(); 559 if (emitError) 560 Diags.Report(diag::err_drv_argument_not_allowed_with) 561 << A->getSpelling() << T.getTriple(); 562 } 563 564 return Diags.getNumErrors() == NumErrorsBefore; 565 } 566 567 //===----------------------------------------------------------------------===// 568 // Deserialization (from args) 569 //===----------------------------------------------------------------------===// 570 571 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 572 DiagnosticsEngine &Diags) { 573 unsigned DefaultOpt = llvm::CodeGenOpt::None; 574 if ((IK.getLanguage() == Language::OpenCL || 575 IK.getLanguage() == Language::OpenCLCXX) && 576 !Args.hasArg(OPT_cl_opt_disable)) 577 DefaultOpt = llvm::CodeGenOpt::Default; 578 579 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 580 if (A->getOption().matches(options::OPT_O0)) 581 return llvm::CodeGenOpt::None; 582 583 if (A->getOption().matches(options::OPT_Ofast)) 584 return llvm::CodeGenOpt::Aggressive; 585 586 assert(A->getOption().matches(options::OPT_O)); 587 588 StringRef S(A->getValue()); 589 if (S == "s" || S == "z") 590 return llvm::CodeGenOpt::Default; 591 592 if (S == "g") 593 return llvm::CodeGenOpt::Less; 594 595 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 596 } 597 598 return DefaultOpt; 599 } 600 601 static unsigned getOptimizationLevelSize(ArgList &Args) { 602 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 603 if (A->getOption().matches(options::OPT_O)) { 604 switch (A->getValue()[0]) { 605 default: 606 return 0; 607 case 's': 608 return 1; 609 case 'z': 610 return 2; 611 } 612 } 613 } 614 return 0; 615 } 616 617 static void GenerateArg(SmallVectorImpl<const char *> &Args, 618 llvm::opt::OptSpecifier OptSpecifier, 619 CompilerInvocation::StringAllocator SA) { 620 Option Opt = getDriverOptTable().getOption(OptSpecifier); 621 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 622 Option::OptionClass::FlagClass, 0); 623 } 624 625 static void GenerateArg(SmallVectorImpl<const char *> &Args, 626 llvm::opt::OptSpecifier OptSpecifier, 627 const Twine &Value, 628 CompilerInvocation::StringAllocator SA) { 629 Option Opt = getDriverOptTable().getOption(OptSpecifier); 630 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 631 Opt.getKind(), 0, Value); 632 } 633 634 // Parse command line arguments into CompilerInvocation. 635 using ParseFn = 636 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 637 DiagnosticsEngine &, const char *)>; 638 639 // Generate command line arguments from CompilerInvocation. 640 using GenerateFn = llvm::function_ref<void( 641 CompilerInvocation &, SmallVectorImpl<const char *> &, 642 CompilerInvocation::StringAllocator)>; 643 644 // May perform round-trip of command line arguments. By default, the round-trip 645 // is enabled in assert builds. This can be overwritten at run-time via the 646 // "-round-trip-args" and "-no-round-trip-args" command line flags. 647 // During round-trip, the command line arguments are parsed into a dummy 648 // instance of CompilerInvocation which is used to generate the command line 649 // arguments again. The real CompilerInvocation instance is then created by 650 // parsing the generated arguments, not the original ones. 651 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 652 CompilerInvocation &RealInvocation, 653 CompilerInvocation &DummyInvocation, 654 ArrayRef<const char *> CommandLineArgs, 655 DiagnosticsEngine &Diags, const char *Argv0) { 656 #ifndef NDEBUG 657 bool DoRoundTripDefault = true; 658 #else 659 bool DoRoundTripDefault = false; 660 #endif 661 662 bool DoRoundTrip = DoRoundTripDefault; 663 for (const auto *Arg : CommandLineArgs) { 664 if (Arg == StringRef("-round-trip-args")) 665 DoRoundTrip = true; 666 if (Arg == StringRef("-no-round-trip-args")) 667 DoRoundTrip = false; 668 } 669 670 // If round-trip was not requested, simply run the parser with the real 671 // invocation diagnostics. 672 if (!DoRoundTrip) 673 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 674 675 // Serializes quoted (and potentially escaped) arguments. 676 auto SerializeArgs = [](ArrayRef<const char *> Args) { 677 std::string Buffer; 678 llvm::raw_string_ostream OS(Buffer); 679 for (const char *Arg : Args) { 680 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 681 OS << ' '; 682 } 683 OS.flush(); 684 return Buffer; 685 }; 686 687 // Setup a dummy DiagnosticsEngine. 688 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 689 DummyDiags.setClient(new TextDiagnosticBuffer()); 690 691 // Run the first parse on the original arguments with the dummy invocation and 692 // diagnostics. 693 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 694 DummyDiags.getNumWarnings() != 0) { 695 // If the first parse did not succeed, it must be user mistake (invalid 696 // command line arguments). We won't be able to generate arguments that 697 // would reproduce the same result. Let's fail again with the real 698 // invocation and diagnostics, so all side-effects of parsing are visible. 699 unsigned NumWarningsBefore = Diags.getNumWarnings(); 700 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 701 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 702 return Success; 703 704 // Parse with original options and diagnostics succeeded even though it 705 // shouldn't have. Something is off. 706 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 707 Diags.Report(diag::note_cc1_round_trip_original) 708 << SerializeArgs(CommandLineArgs); 709 return false; 710 } 711 712 // Setup string allocator. 713 llvm::BumpPtrAllocator Alloc; 714 llvm::StringSaver StringPool(Alloc); 715 auto SA = [&StringPool](const Twine &Arg) { 716 return StringPool.save(Arg).data(); 717 }; 718 719 // Generate arguments from the dummy invocation. If Generate is the 720 // inverse of Parse, the newly generated arguments must have the same 721 // semantics as the original. 722 SmallVector<const char *> GeneratedArgs1; 723 Generate(DummyInvocation, GeneratedArgs1, SA); 724 725 // Run the second parse, now on the generated arguments, and with the real 726 // invocation and diagnostics. The result is what we will end up using for the 727 // rest of compilation, so if Generate is not inverse of Parse, something down 728 // the line will break. 729 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 730 731 // The first parse on original arguments succeeded, but second parse of 732 // generated arguments failed. Something must be wrong with the generator. 733 if (!Success2) { 734 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 735 Diags.Report(diag::note_cc1_round_trip_generated) 736 << 1 << SerializeArgs(GeneratedArgs1); 737 return false; 738 } 739 740 // Generate arguments again, this time from the options we will end up using 741 // for the rest of the compilation. 742 SmallVector<const char *> GeneratedArgs2; 743 Generate(RealInvocation, GeneratedArgs2, SA); 744 745 // Compares two lists of generated arguments. 746 auto Equal = [](const ArrayRef<const char *> A, 747 const ArrayRef<const char *> B) { 748 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 749 [](const char *AElem, const char *BElem) { 750 return StringRef(AElem) == StringRef(BElem); 751 }); 752 }; 753 754 // If we generated different arguments from what we assume are two 755 // semantically equivalent CompilerInvocations, the Generate function may 756 // be non-deterministic. 757 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 758 Diags.Report(diag::err_cc1_round_trip_mismatch); 759 Diags.Report(diag::note_cc1_round_trip_generated) 760 << 1 << SerializeArgs(GeneratedArgs1); 761 Diags.Report(diag::note_cc1_round_trip_generated) 762 << 2 << SerializeArgs(GeneratedArgs2); 763 return false; 764 } 765 766 Diags.Report(diag::remark_cc1_round_trip_generated) 767 << 1 << SerializeArgs(GeneratedArgs1); 768 Diags.Report(diag::remark_cc1_round_trip_generated) 769 << 2 << SerializeArgs(GeneratedArgs2); 770 771 return Success2; 772 } 773 774 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 775 OptSpecifier GroupWithValue, 776 std::vector<std::string> &Diagnostics) { 777 for (auto *A : Args.filtered(Group)) { 778 if (A->getOption().getKind() == Option::FlagClass) { 779 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 780 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 781 Diagnostics.push_back( 782 std::string(A->getOption().getName().drop_front(1))); 783 } else if (A->getOption().matches(GroupWithValue)) { 784 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 785 // group. Add only the group name to the diagnostics. 786 Diagnostics.push_back( 787 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 788 } else { 789 // Otherwise, add its value (for OPT_W_Joined and similar). 790 Diagnostics.push_back(A->getValue()); 791 } 792 } 793 } 794 795 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 796 // it won't verify the input. 797 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 798 DiagnosticsEngine *Diags); 799 800 static void getAllNoBuiltinFuncValues(ArgList &Args, 801 std::vector<std::string> &Funcs) { 802 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 803 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 804 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 805 } 806 807 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 808 SmallVectorImpl<const char *> &Args, 809 CompilerInvocation::StringAllocator SA) { 810 const AnalyzerOptions *AnalyzerOpts = &Opts; 811 812 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 813 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 814 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 815 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 816 MERGER, EXTRACTOR, TABLE_INDEX) \ 817 GENERATE_OPTION_WITH_MARSHALLING( \ 818 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 819 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 820 #include "clang/Driver/Options.inc" 821 #undef ANALYZER_OPTION_WITH_MARSHALLING 822 823 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 824 switch (Opts.AnalysisConstraintsOpt) { 825 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 826 case NAME##Model: \ 827 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 828 break; 829 #include "clang/StaticAnalyzer/Core/Analyses.def" 830 default: 831 llvm_unreachable("Tried to generate unknown analysis constraint."); 832 } 833 } 834 835 if (Opts.AnalysisDiagOpt != PD_HTML) { 836 switch (Opts.AnalysisDiagOpt) { 837 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 838 case PD_##NAME: \ 839 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 840 break; 841 #include "clang/StaticAnalyzer/Core/Analyses.def" 842 default: 843 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 844 } 845 } 846 847 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 848 switch (Opts.AnalysisPurgeOpt) { 849 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 850 case NAME: \ 851 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 852 break; 853 #include "clang/StaticAnalyzer/Core/Analyses.def" 854 default: 855 llvm_unreachable("Tried to generate unknown analysis purge mode."); 856 } 857 } 858 859 if (Opts.InliningMode != NoRedundancy) { 860 switch (Opts.InliningMode) { 861 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 862 case NAME: \ 863 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 864 break; 865 #include "clang/StaticAnalyzer/Core/Analyses.def" 866 default: 867 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 868 } 869 } 870 871 for (const auto &CP : Opts.CheckersAndPackages) { 872 OptSpecifier Opt = 873 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 874 GenerateArg(Args, Opt, CP.first, SA); 875 } 876 877 AnalyzerOptions ConfigOpts; 878 parseAnalyzerConfigs(ConfigOpts, nullptr); 879 880 for (const auto &C : Opts.Config) { 881 // Don't generate anything that came from parseAnalyzerConfigs. It would be 882 // redundant and may not be valid on the command line. 883 auto Entry = ConfigOpts.Config.find(C.getKey()); 884 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 885 continue; 886 887 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 888 } 889 890 // Nothing to generate for FullCompilerInvocation. 891 } 892 893 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 894 DiagnosticsEngine &Diags) { 895 unsigned NumErrorsBefore = Diags.getNumErrors(); 896 897 AnalyzerOptions *AnalyzerOpts = &Opts; 898 899 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 900 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 901 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 902 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 903 MERGER, EXTRACTOR, TABLE_INDEX) \ 904 PARSE_OPTION_WITH_MARSHALLING( \ 905 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 906 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 907 #include "clang/Driver/Options.inc" 908 #undef ANALYZER_OPTION_WITH_MARSHALLING 909 910 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 911 StringRef Name = A->getValue(); 912 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 913 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 914 .Case(CMDFLAG, NAME##Model) 915 #include "clang/StaticAnalyzer/Core/Analyses.def" 916 .Default(NumConstraints); 917 if (Value == NumConstraints) { 918 Diags.Report(diag::err_drv_invalid_value) 919 << A->getAsString(Args) << Name; 920 } else { 921 #ifndef LLVM_WITH_Z3 922 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 923 Diags.Report(diag::err_analyzer_not_built_with_z3); 924 } 925 #endif // LLVM_WITH_Z3 926 Opts.AnalysisConstraintsOpt = Value; 927 } 928 } 929 930 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 931 StringRef Name = A->getValue(); 932 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 933 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 934 .Case(CMDFLAG, PD_##NAME) 935 #include "clang/StaticAnalyzer/Core/Analyses.def" 936 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 937 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 938 Diags.Report(diag::err_drv_invalid_value) 939 << A->getAsString(Args) << Name; 940 } else { 941 Opts.AnalysisDiagOpt = Value; 942 } 943 } 944 945 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 946 StringRef Name = A->getValue(); 947 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 948 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 949 .Case(CMDFLAG, NAME) 950 #include "clang/StaticAnalyzer/Core/Analyses.def" 951 .Default(NumPurgeModes); 952 if (Value == NumPurgeModes) { 953 Diags.Report(diag::err_drv_invalid_value) 954 << A->getAsString(Args) << Name; 955 } else { 956 Opts.AnalysisPurgeOpt = Value; 957 } 958 } 959 960 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 961 StringRef Name = A->getValue(); 962 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 963 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 964 .Case(CMDFLAG, NAME) 965 #include "clang/StaticAnalyzer/Core/Analyses.def" 966 .Default(NumInliningModes); 967 if (Value == NumInliningModes) { 968 Diags.Report(diag::err_drv_invalid_value) 969 << A->getAsString(Args) << Name; 970 } else { 971 Opts.InliningMode = Value; 972 } 973 } 974 975 Opts.CheckersAndPackages.clear(); 976 for (const Arg *A : 977 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 978 A->claim(); 979 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 980 // We can have a list of comma separated checker names, e.g: 981 // '-analyzer-checker=cocoa,unix' 982 StringRef CheckerAndPackageList = A->getValue(); 983 SmallVector<StringRef, 16> CheckersAndPackages; 984 CheckerAndPackageList.split(CheckersAndPackages, ","); 985 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 986 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 987 IsEnabled); 988 } 989 990 // Go through the analyzer configuration options. 991 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 992 993 // We can have a list of comma separated config names, e.g: 994 // '-analyzer-config key1=val1,key2=val2' 995 StringRef configList = A->getValue(); 996 SmallVector<StringRef, 4> configVals; 997 configList.split(configVals, ","); 998 for (const auto &configVal : configVals) { 999 StringRef key, val; 1000 std::tie(key, val) = configVal.split("="); 1001 if (val.empty()) { 1002 Diags.Report(SourceLocation(), 1003 diag::err_analyzer_config_no_value) << configVal; 1004 break; 1005 } 1006 if (val.contains('=')) { 1007 Diags.Report(SourceLocation(), 1008 diag::err_analyzer_config_multiple_values) 1009 << configVal; 1010 break; 1011 } 1012 1013 // TODO: Check checker options too, possibly in CheckerRegistry. 1014 // Leave unknown non-checker configs unclaimed. 1015 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1016 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1017 Diags.Report(diag::err_analyzer_config_unknown) << key; 1018 continue; 1019 } 1020 1021 A->claim(); 1022 Opts.Config[key] = std::string(val); 1023 } 1024 } 1025 1026 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1027 parseAnalyzerConfigs(Opts, &Diags); 1028 else 1029 parseAnalyzerConfigs(Opts, nullptr); 1030 1031 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1032 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1033 if (i != 0) 1034 os << " "; 1035 os << Args.getArgString(i); 1036 } 1037 os.flush(); 1038 1039 return Diags.getNumErrors() == NumErrorsBefore; 1040 } 1041 1042 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1043 StringRef OptionName, StringRef DefaultVal) { 1044 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1045 } 1046 1047 static void initOption(AnalyzerOptions::ConfigTable &Config, 1048 DiagnosticsEngine *Diags, 1049 StringRef &OptionField, StringRef Name, 1050 StringRef DefaultVal) { 1051 // String options may be known to invalid (e.g. if the expected string is a 1052 // file name, but the file does not exist), those will have to be checked in 1053 // parseConfigs. 1054 OptionField = getStringOption(Config, Name, DefaultVal); 1055 } 1056 1057 static void initOption(AnalyzerOptions::ConfigTable &Config, 1058 DiagnosticsEngine *Diags, 1059 bool &OptionField, StringRef Name, bool DefaultVal) { 1060 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1061 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1062 .Case("true", true) 1063 .Case("false", false) 1064 .Default(None); 1065 1066 if (!PossiblyInvalidVal) { 1067 if (Diags) 1068 Diags->Report(diag::err_analyzer_config_invalid_input) 1069 << Name << "a boolean"; 1070 else 1071 OptionField = DefaultVal; 1072 } else 1073 OptionField = *PossiblyInvalidVal; 1074 } 1075 1076 static void initOption(AnalyzerOptions::ConfigTable &Config, 1077 DiagnosticsEngine *Diags, 1078 unsigned &OptionField, StringRef Name, 1079 unsigned DefaultVal) { 1080 1081 OptionField = DefaultVal; 1082 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1083 .getAsInteger(0, OptionField); 1084 if (Diags && HasFailed) 1085 Diags->Report(diag::err_analyzer_config_invalid_input) 1086 << Name << "an unsigned"; 1087 } 1088 1089 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1090 DiagnosticsEngine *Diags) { 1091 // TODO: There's no need to store the entire configtable, it'd be plenty 1092 // enough to store checker options. 1093 1094 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1095 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1096 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1097 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1098 1099 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1100 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1101 1102 #define ANALYZER_OPTION(...) 1103 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1104 SHALLOW_VAL, DEEP_VAL) \ 1105 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1106 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1107 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1108 1109 // At this point, AnalyzerOptions is configured. Let's validate some options. 1110 1111 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1112 // The current approach only validates the registered checkers which does not 1113 // contain the runtime enabled checkers and optimally we would validate both. 1114 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1115 std::vector<StringRef> Checkers = 1116 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1117 std::vector<StringRef> Packages = 1118 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1119 1120 SmallVector<StringRef, 16> CheckersAndPackages; 1121 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1122 1123 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1124 if (Diags) { 1125 bool IsChecker = CheckerOrPackage.contains('.'); 1126 bool IsValidName = IsChecker 1127 ? llvm::is_contained(Checkers, CheckerOrPackage) 1128 : llvm::is_contained(Packages, CheckerOrPackage); 1129 1130 if (!IsValidName) 1131 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1132 << CheckerOrPackage; 1133 } 1134 1135 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1136 } 1137 } 1138 1139 if (!Diags) 1140 return; 1141 1142 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1143 Diags->Report(diag::err_analyzer_config_invalid_input) 1144 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1145 1146 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1147 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1148 << "a filename"; 1149 1150 if (!AnOpts.ModelPath.empty() && 1151 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1152 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1153 << "a filename"; 1154 } 1155 1156 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1157 static void 1158 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1159 CompilerInvocation::StringAllocator SA, 1160 OptSpecifier OptEQ, StringRef Name, 1161 const CodeGenOptions::OptRemark &Remark) { 1162 if (Remark.hasValidPattern()) { 1163 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1164 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1165 GenerateArg(Args, OPT_R_Joined, Name, SA); 1166 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1167 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1168 } 1169 } 1170 1171 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1172 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1173 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1174 static CodeGenOptions::OptRemark 1175 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1176 OptSpecifier OptEQ, StringRef Name) { 1177 CodeGenOptions::OptRemark Result; 1178 1179 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1180 StringRef Pattern) { 1181 Result.Pattern = Pattern.str(); 1182 1183 std::string RegexError; 1184 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1185 if (!Result.Regex->isValid(RegexError)) { 1186 Diags.Report(diag::err_drv_optimization_remark_pattern) 1187 << RegexError << A->getAsString(Args); 1188 return false; 1189 } 1190 1191 return true; 1192 }; 1193 1194 for (Arg *A : Args) { 1195 if (A->getOption().matches(OPT_R_Joined)) { 1196 StringRef Value = A->getValue(); 1197 1198 if (Value == Name) 1199 Result.Kind = CodeGenOptions::RK_Enabled; 1200 else if (Value == "everything") 1201 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1202 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1203 Result.Kind = CodeGenOptions::RK_Disabled; 1204 else if (Value == "no-everything") 1205 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1206 else 1207 continue; 1208 1209 if (Result.Kind == CodeGenOptions::RK_Disabled || 1210 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1211 Result.Pattern = ""; 1212 Result.Regex = nullptr; 1213 } else { 1214 InitializeResultPattern(A, ".*"); 1215 } 1216 } else if (A->getOption().matches(OptEQ)) { 1217 Result.Kind = CodeGenOptions::RK_WithPattern; 1218 if (!InitializeResultPattern(A, A->getValue())) 1219 return CodeGenOptions::OptRemark(); 1220 } 1221 } 1222 1223 return Result; 1224 } 1225 1226 static bool parseDiagnosticLevelMask(StringRef FlagName, 1227 const std::vector<std::string> &Levels, 1228 DiagnosticsEngine &Diags, 1229 DiagnosticLevelMask &M) { 1230 bool Success = true; 1231 for (const auto &Level : Levels) { 1232 DiagnosticLevelMask const PM = 1233 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1234 .Case("note", DiagnosticLevelMask::Note) 1235 .Case("remark", DiagnosticLevelMask::Remark) 1236 .Case("warning", DiagnosticLevelMask::Warning) 1237 .Case("error", DiagnosticLevelMask::Error) 1238 .Default(DiagnosticLevelMask::None); 1239 if (PM == DiagnosticLevelMask::None) { 1240 Success = false; 1241 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1242 } 1243 M = M | PM; 1244 } 1245 return Success; 1246 } 1247 1248 static void parseSanitizerKinds(StringRef FlagName, 1249 const std::vector<std::string> &Sanitizers, 1250 DiagnosticsEngine &Diags, SanitizerSet &S) { 1251 for (const auto &Sanitizer : Sanitizers) { 1252 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1253 if (K == SanitizerMask()) 1254 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1255 else 1256 S.set(K, true); 1257 } 1258 } 1259 1260 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1261 SmallVector<StringRef, 4> Values; 1262 serializeSanitizerSet(S, Values); 1263 return Values; 1264 } 1265 1266 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1267 ArgList &Args, DiagnosticsEngine &D, 1268 XRayInstrSet &S) { 1269 llvm::SmallVector<StringRef, 2> BundleParts; 1270 llvm::SplitString(Bundle, BundleParts, ","); 1271 for (const auto &B : BundleParts) { 1272 auto Mask = parseXRayInstrValue(B); 1273 if (Mask == XRayInstrKind::None) 1274 if (B != "none") 1275 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1276 else 1277 S.Mask = Mask; 1278 else if (Mask == XRayInstrKind::All) 1279 S.Mask = Mask; 1280 else 1281 S.set(Mask, true); 1282 } 1283 } 1284 1285 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1286 llvm::SmallVector<StringRef, 2> BundleParts; 1287 serializeXRayInstrValue(S, BundleParts); 1288 std::string Buffer; 1289 llvm::raw_string_ostream OS(Buffer); 1290 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1291 return Buffer; 1292 } 1293 1294 // Set the profile kind using fprofile-instrument-use-path. 1295 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1296 const Twine &ProfileName) { 1297 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1298 // In error, return silently and let Clang PGOUse report the error message. 1299 if (auto E = ReaderOrErr.takeError()) { 1300 llvm::consumeError(std::move(E)); 1301 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1302 return; 1303 } 1304 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1305 std::move(ReaderOrErr.get()); 1306 if (PGOReader->isIRLevelProfile()) { 1307 if (PGOReader->hasCSIRLevelProfile()) 1308 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1309 else 1310 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1311 } else 1312 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1313 } 1314 1315 void CompilerInvocation::GenerateCodeGenArgs( 1316 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1317 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1318 const LangOptions *LangOpts) { 1319 const CodeGenOptions &CodeGenOpts = Opts; 1320 1321 if (Opts.OptimizationLevel == 0) 1322 GenerateArg(Args, OPT_O0, SA); 1323 else 1324 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1325 1326 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1327 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1328 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1329 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1330 MERGER, EXTRACTOR, TABLE_INDEX) \ 1331 GENERATE_OPTION_WITH_MARSHALLING( \ 1332 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1333 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1334 #include "clang/Driver/Options.inc" 1335 #undef CODEGEN_OPTION_WITH_MARSHALLING 1336 1337 if (Opts.OptimizationLevel > 0) { 1338 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1339 GenerateArg(Args, OPT_finline_functions, SA); 1340 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1341 GenerateArg(Args, OPT_finline_hint_functions, SA); 1342 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1343 GenerateArg(Args, OPT_fno_inline, SA); 1344 } 1345 1346 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1347 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1348 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1349 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1350 1351 Optional<StringRef> DebugInfoVal; 1352 switch (Opts.DebugInfo) { 1353 case codegenoptions::DebugLineTablesOnly: 1354 DebugInfoVal = "line-tables-only"; 1355 break; 1356 case codegenoptions::DebugDirectivesOnly: 1357 DebugInfoVal = "line-directives-only"; 1358 break; 1359 case codegenoptions::DebugInfoConstructor: 1360 DebugInfoVal = "constructor"; 1361 break; 1362 case codegenoptions::LimitedDebugInfo: 1363 DebugInfoVal = "limited"; 1364 break; 1365 case codegenoptions::FullDebugInfo: 1366 DebugInfoVal = "standalone"; 1367 break; 1368 case codegenoptions::UnusedTypeInfo: 1369 DebugInfoVal = "unused-types"; 1370 break; 1371 case codegenoptions::NoDebugInfo: // default value 1372 DebugInfoVal = None; 1373 break; 1374 case codegenoptions::LocTrackingOnly: // implied value 1375 DebugInfoVal = None; 1376 break; 1377 } 1378 if (DebugInfoVal) 1379 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1380 1381 for (const auto &Prefix : Opts.DebugPrefixMap) 1382 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1383 Prefix.first + "=" + Prefix.second, SA); 1384 1385 for (const auto &Prefix : Opts.CoveragePrefixMap) 1386 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1387 Prefix.first + "=" + Prefix.second, SA); 1388 1389 if (Opts.NewStructPathTBAA) 1390 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1391 1392 if (Opts.OptimizeSize == 1) 1393 GenerateArg(Args, OPT_O, "s", SA); 1394 else if (Opts.OptimizeSize == 2) 1395 GenerateArg(Args, OPT_O, "z", SA); 1396 1397 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1398 // -ffreestanding. We'll consider that when generating them. 1399 1400 // NoBuiltinFuncs are generated by LangOptions. 1401 1402 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1403 GenerateArg(Args, OPT_funroll_loops, SA); 1404 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1405 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1406 1407 if (!Opts.BinutilsVersion.empty()) 1408 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1409 1410 if (Opts.DebugNameTable == 1411 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1412 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1413 else if (Opts.DebugNameTable == 1414 static_cast<unsigned>( 1415 llvm::DICompileUnit::DebugNameTableKind::Default)) 1416 GenerateArg(Args, OPT_gpubnames, SA); 1417 1418 auto TNK = Opts.getDebugSimpleTemplateNames(); 1419 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1420 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1421 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1422 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1423 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1424 } 1425 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1426 // it or PGOUseInstrumentor. 1427 1428 if (Opts.TimePasses) { 1429 if (Opts.TimePassesPerRun) 1430 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1431 else 1432 GenerateArg(Args, OPT_ftime_report, SA); 1433 } 1434 1435 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1436 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1437 1438 if (Opts.PrepareForThinLTO) 1439 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1440 1441 if (!Opts.ThinLTOIndexFile.empty()) 1442 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1443 1444 if (Opts.SaveTempsFilePrefix == OutputFile) 1445 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1446 1447 StringRef MemProfileBasename("memprof.profraw"); 1448 if (!Opts.MemoryProfileOutput.empty()) { 1449 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1450 GenerateArg(Args, OPT_fmemory_profile, SA); 1451 } else { 1452 size_t ArgLength = 1453 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1454 GenerateArg(Args, OPT_fmemory_profile_EQ, 1455 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1456 } 1457 } 1458 1459 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1460 GenerateArg(Args, OPT_coverage_version_EQ, 1461 StringRef(Opts.CoverageVersion, 4), SA); 1462 1463 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1464 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1465 // won't be generated.) 1466 1467 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1468 std::string InstrBundle = 1469 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1470 if (!InstrBundle.empty()) 1471 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1472 } 1473 1474 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1475 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1476 else if (Opts.CFProtectionReturn) 1477 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1478 else if (Opts.CFProtectionBranch) 1479 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1480 1481 if (Opts.IBTSeal) 1482 GenerateArg(Args, OPT_mibt_seal, SA); 1483 1484 if (Opts.FunctionReturnThunks) 1485 GenerateArg(Args, OPT_mfunction_return_EQ, "thunk-extern", SA); 1486 1487 for (const auto &F : Opts.LinkBitcodeFiles) { 1488 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1489 F.PropagateAttrs && F.Internalize; 1490 GenerateArg(Args, 1491 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1492 F.Filename, SA); 1493 } 1494 1495 GenerateArg( 1496 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1497 1498 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1499 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1500 1501 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1502 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1503 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1504 SA); 1505 1506 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1507 OptSpecifier Opt = 1508 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1509 GenerateArg(Args, Opt, SA); 1510 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1511 OptSpecifier Opt = 1512 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1513 GenerateArg(Args, Opt, SA); 1514 } 1515 1516 if (Opts.EnableAIXExtendedAltivecABI) 1517 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1518 1519 if (!Opts.OptRecordPasses.empty()) 1520 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1521 1522 if (!Opts.OptRecordFormat.empty()) 1523 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1524 1525 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1526 Opts.OptimizationRemark); 1527 1528 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1529 Opts.OptimizationRemarkMissed); 1530 1531 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1532 Opts.OptimizationRemarkAnalysis); 1533 1534 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1535 Opts.DiagnosticsHotnessThreshold 1536 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1537 : "auto", 1538 SA); 1539 1540 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1541 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1542 1543 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1544 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1545 1546 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1547 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1548 1549 if (!Opts.EmitVersionIdentMetadata) 1550 GenerateArg(Args, OPT_Qn, SA); 1551 1552 switch (Opts.FiniteLoops) { 1553 case CodeGenOptions::FiniteLoopsKind::Language: 1554 break; 1555 case CodeGenOptions::FiniteLoopsKind::Always: 1556 GenerateArg(Args, OPT_ffinite_loops, SA); 1557 break; 1558 case CodeGenOptions::FiniteLoopsKind::Never: 1559 GenerateArg(Args, OPT_fno_finite_loops, SA); 1560 break; 1561 } 1562 } 1563 1564 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1565 InputKind IK, 1566 DiagnosticsEngine &Diags, 1567 const llvm::Triple &T, 1568 const std::string &OutputFile, 1569 const LangOptions &LangOptsRef) { 1570 unsigned NumErrorsBefore = Diags.getNumErrors(); 1571 1572 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1573 // TODO: This could be done in Driver 1574 unsigned MaxOptLevel = 3; 1575 if (OptimizationLevel > MaxOptLevel) { 1576 // If the optimization level is not supported, fall back on the default 1577 // optimization 1578 Diags.Report(diag::warn_drv_optimization_value) 1579 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1580 OptimizationLevel = MaxOptLevel; 1581 } 1582 Opts.OptimizationLevel = OptimizationLevel; 1583 1584 // The key paths of codegen options defined in Options.td start with 1585 // "CodeGenOpts.". Let's provide the expected variable name and type. 1586 CodeGenOptions &CodeGenOpts = Opts; 1587 // Some codegen options depend on language options. Let's provide the expected 1588 // variable name and type. 1589 const LangOptions *LangOpts = &LangOptsRef; 1590 1591 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1592 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1593 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1594 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1595 MERGER, EXTRACTOR, TABLE_INDEX) \ 1596 PARSE_OPTION_WITH_MARSHALLING( \ 1597 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1598 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1599 #include "clang/Driver/Options.inc" 1600 #undef CODEGEN_OPTION_WITH_MARSHALLING 1601 1602 // At O0 we want to fully disable inlining outside of cases marked with 1603 // 'alwaysinline' that are required for correctness. 1604 if (Opts.OptimizationLevel == 0) { 1605 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1606 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1607 options::OPT_finline_hint_functions, 1608 options::OPT_fno_inline_functions, 1609 options::OPT_fno_inline)) { 1610 // Explicit inlining flags can disable some or all inlining even at 1611 // optimization levels above zero. 1612 if (A->getOption().matches(options::OPT_finline_functions)) 1613 Opts.setInlining(CodeGenOptions::NormalInlining); 1614 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1615 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1616 else 1617 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1618 } else { 1619 Opts.setInlining(CodeGenOptions::NormalInlining); 1620 } 1621 1622 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1623 // -fdirect-access-external-data. 1624 Opts.DirectAccessExternalData = 1625 Args.hasArg(OPT_fdirect_access_external_data) || 1626 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1627 LangOpts->PICLevel == 0); 1628 1629 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1630 unsigned Val = 1631 llvm::StringSwitch<unsigned>(A->getValue()) 1632 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1633 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1634 .Case("constructor", codegenoptions::DebugInfoConstructor) 1635 .Case("limited", codegenoptions::LimitedDebugInfo) 1636 .Case("standalone", codegenoptions::FullDebugInfo) 1637 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1638 .Default(~0U); 1639 if (Val == ~0U) 1640 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1641 << A->getValue(); 1642 else 1643 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1644 } 1645 1646 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1647 // constructor homing, and vice versa for -fno-use-ctor-homing. 1648 if (const Arg *A = 1649 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1650 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1651 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1652 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1653 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1654 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1655 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1656 } 1657 1658 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1659 auto Split = StringRef(Arg).split('='); 1660 Opts.DebugPrefixMap.insert( 1661 {std::string(Split.first), std::string(Split.second)}); 1662 } 1663 1664 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1665 auto Split = StringRef(Arg).split('='); 1666 Opts.CoveragePrefixMap.insert( 1667 {std::string(Split.first), std::string(Split.second)}); 1668 } 1669 1670 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1671 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1672 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1673 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1674 1675 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1676 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1677 Opts.EmitCallSiteInfo = true; 1678 1679 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1680 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1681 << Opts.DIBugsReportFilePath; 1682 Opts.DIBugsReportFilePath = ""; 1683 } 1684 1685 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1686 Args.hasArg(OPT_new_struct_path_tbaa); 1687 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1688 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1689 if (Opts.SimplifyLibCalls) 1690 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1691 Opts.UnrollLoops = 1692 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1693 (Opts.OptimizationLevel > 1)); 1694 Opts.BinutilsVersion = 1695 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1696 1697 Opts.DebugNameTable = static_cast<unsigned>( 1698 Args.hasArg(OPT_ggnu_pubnames) 1699 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1700 : Args.hasArg(OPT_gpubnames) 1701 ? llvm::DICompileUnit::DebugNameTableKind::Default 1702 : llvm::DICompileUnit::DebugNameTableKind::None); 1703 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1704 StringRef Value = A->getValue(); 1705 if (Value != "simple" && Value != "mangled") 1706 Diags.Report(diag::err_drv_unsupported_option_argument) 1707 << A->getOption().getName() << A->getValue(); 1708 Opts.setDebugSimpleTemplateNames( 1709 StringRef(A->getValue()) == "simple" 1710 ? codegenoptions::DebugTemplateNamesKind::Simple 1711 : codegenoptions::DebugTemplateNamesKind::Mangled); 1712 } 1713 1714 if (!Opts.ProfileInstrumentUsePath.empty()) 1715 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1716 1717 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1718 Opts.TimePasses = true; 1719 1720 // -ftime-report= is only for new pass manager. 1721 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1722 StringRef Val = A->getValue(); 1723 if (Val == "per-pass") 1724 Opts.TimePassesPerRun = false; 1725 else if (Val == "per-pass-run") 1726 Opts.TimePassesPerRun = true; 1727 else 1728 Diags.Report(diag::err_drv_invalid_value) 1729 << A->getAsString(Args) << A->getValue(); 1730 } 1731 } 1732 1733 Opts.PrepareForLTO = false; 1734 Opts.PrepareForThinLTO = false; 1735 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1736 Opts.PrepareForLTO = true; 1737 StringRef S = A->getValue(); 1738 if (S == "thin") 1739 Opts.PrepareForThinLTO = true; 1740 else if (S != "full") 1741 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1742 } 1743 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1744 if (IK.getLanguage() != Language::LLVM_IR) 1745 Diags.Report(diag::err_drv_argument_only_allowed_with) 1746 << A->getAsString(Args) << "-x ir"; 1747 Opts.ThinLTOIndexFile = 1748 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1749 } 1750 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1751 Opts.SaveTempsFilePrefix = 1752 llvm::StringSwitch<std::string>(A->getValue()) 1753 .Case("obj", OutputFile) 1754 .Default(llvm::sys::path::filename(OutputFile).str()); 1755 1756 // The memory profile runtime appends the pid to make this name more unique. 1757 const char *MemProfileBasename = "memprof.profraw"; 1758 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1759 SmallString<128> Path( 1760 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1761 llvm::sys::path::append(Path, MemProfileBasename); 1762 Opts.MemoryProfileOutput = std::string(Path); 1763 } else if (Args.hasArg(OPT_fmemory_profile)) 1764 Opts.MemoryProfileOutput = MemProfileBasename; 1765 1766 memcpy(Opts.CoverageVersion, "408*", 4); 1767 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1768 if (Args.hasArg(OPT_coverage_version_EQ)) { 1769 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1770 if (CoverageVersion.size() != 4) { 1771 Diags.Report(diag::err_drv_invalid_value) 1772 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1773 << CoverageVersion; 1774 } else { 1775 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1776 } 1777 } 1778 } 1779 // FIXME: For backend options that are not yet recorded as function 1780 // attributes in the IR, keep track of them so we can embed them in a 1781 // separate data section and use them when building the bitcode. 1782 for (const auto &A : Args) { 1783 // Do not encode output and input. 1784 if (A->getOption().getID() == options::OPT_o || 1785 A->getOption().getID() == options::OPT_INPUT || 1786 A->getOption().getID() == options::OPT_x || 1787 A->getOption().getID() == options::OPT_fembed_bitcode || 1788 A->getOption().matches(options::OPT_W_Group)) 1789 continue; 1790 ArgStringList ASL; 1791 A->render(Args, ASL); 1792 for (const auto &arg : ASL) { 1793 StringRef ArgStr(arg); 1794 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1795 // using \00 to separate each commandline options. 1796 Opts.CmdArgs.push_back('\0'); 1797 } 1798 } 1799 1800 auto XRayInstrBundles = 1801 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1802 if (XRayInstrBundles.empty()) 1803 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1804 else 1805 for (const auto &A : XRayInstrBundles) 1806 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1807 Diags, Opts.XRayInstrumentationBundle); 1808 1809 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1810 StringRef Name = A->getValue(); 1811 if (Name == "full") { 1812 Opts.CFProtectionReturn = 1; 1813 Opts.CFProtectionBranch = 1; 1814 } else if (Name == "return") 1815 Opts.CFProtectionReturn = 1; 1816 else if (Name == "branch") 1817 Opts.CFProtectionBranch = 1; 1818 else if (Name != "none") 1819 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1820 } 1821 1822 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1823 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1824 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1825 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1826 .Default(llvm::FunctionReturnThunksKind::Invalid); 1827 // SystemZ might want to add support for "expolines." 1828 if (!T.isX86()) 1829 Diags.Report(diag::err_drv_argument_not_allowed_with) 1830 << A->getSpelling() << T.getTriple(); 1831 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1832 Diags.Report(diag::err_drv_invalid_value) 1833 << A->getAsString(Args) << A->getValue(); 1834 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1835 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1836 Diags.Report(diag::err_drv_argument_not_allowed_with) 1837 << A->getAsString(Args) 1838 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1839 else 1840 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1841 } 1842 1843 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1844 Opts.IBTSeal = 1; 1845 1846 for (auto *A : 1847 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1848 CodeGenOptions::BitcodeFileToLink F; 1849 F.Filename = A->getValue(); 1850 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1851 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1852 // When linking CUDA bitcode, propagate function attributes so that 1853 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1854 F.PropagateAttrs = true; 1855 F.Internalize = true; 1856 } 1857 Opts.LinkBitcodeFiles.push_back(F); 1858 } 1859 1860 if (!Args.getLastArg(OPT_femulated_tls) && 1861 !Args.getLastArg(OPT_fno_emulated_tls)) { 1862 Opts.EmulatedTLS = T.hasDefaultEmulatedTLS(); 1863 } 1864 1865 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1866 if (T.isOSAIX()) { 1867 StringRef Name = A->getValue(); 1868 if (Name != "global-dynamic") 1869 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1870 } 1871 } 1872 1873 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1874 StringRef Val = A->getValue(); 1875 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1876 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1877 if (!Opts.FPDenormalMode.isValid()) 1878 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1879 } 1880 1881 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1882 StringRef Val = A->getValue(); 1883 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1884 if (!Opts.FP32DenormalMode.isValid()) 1885 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1886 } 1887 1888 // X86_32 has -fppc-struct-return and -freg-struct-return. 1889 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1890 if (Arg *A = 1891 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1892 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1893 // TODO: We might want to consider enabling these options on AIX in the 1894 // future. 1895 if (T.isOSAIX()) 1896 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1897 << A->getSpelling() << T.str(); 1898 1899 const Option &O = A->getOption(); 1900 if (O.matches(OPT_fpcc_struct_return) || 1901 O.matches(OPT_maix_struct_return)) { 1902 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1903 } else { 1904 assert(O.matches(OPT_freg_struct_return) || 1905 O.matches(OPT_msvr4_struct_return)); 1906 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1907 } 1908 } 1909 1910 if (Arg *A = 1911 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1912 if (!T.isOSAIX()) 1913 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1914 << A->getSpelling() << T.str(); 1915 1916 const Option &O = A->getOption(); 1917 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1918 } 1919 1920 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1921 if (!T.isOSAIX() || T.isPPC32()) 1922 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1923 << A->getSpelling() << T.str(); 1924 } 1925 1926 bool NeedLocTracking = false; 1927 1928 if (!Opts.OptRecordFile.empty()) 1929 NeedLocTracking = true; 1930 1931 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1932 Opts.OptRecordPasses = A->getValue(); 1933 NeedLocTracking = true; 1934 } 1935 1936 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1937 Opts.OptRecordFormat = A->getValue(); 1938 NeedLocTracking = true; 1939 } 1940 1941 Opts.OptimizationRemark = 1942 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1943 1944 Opts.OptimizationRemarkMissed = 1945 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1946 1947 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1948 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1949 1950 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1951 Opts.OptimizationRemarkMissed.hasValidPattern() || 1952 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1953 1954 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1955 bool UsingProfile = UsingSampleProfile || 1956 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1957 1958 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1959 // An IR file will contain PGO as metadata 1960 IK.getLanguage() != Language::LLVM_IR) 1961 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1962 << "-fdiagnostics-show-hotness"; 1963 1964 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1965 if (auto *arg = 1966 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1967 auto ResultOrErr = 1968 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1969 1970 if (!ResultOrErr) { 1971 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1972 << "-fdiagnostics-hotness-threshold="; 1973 } else { 1974 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1975 if ((!Opts.DiagnosticsHotnessThreshold || 1976 Opts.DiagnosticsHotnessThreshold.value() > 0) && 1977 !UsingProfile) 1978 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1979 << "-fdiagnostics-hotness-threshold="; 1980 } 1981 } 1982 1983 if (auto *arg = 1984 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1985 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1986 1987 if (!ResultOrErr) { 1988 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 1989 << "-fdiagnostics-misexpect-tolerance="; 1990 } else { 1991 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 1992 if ((!Opts.DiagnosticsMisExpectTolerance || 1993 Opts.DiagnosticsMisExpectTolerance.value() > 0) && 1994 !UsingProfile) 1995 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 1996 << "-fdiagnostics-misexpect-tolerance="; 1997 } 1998 } 1999 2000 // If the user requested to use a sample profile for PGO, then the 2001 // backend will need to track source location information so the profile 2002 // can be incorporated into the IR. 2003 if (UsingSampleProfile) 2004 NeedLocTracking = true; 2005 2006 if (!Opts.StackUsageOutput.empty()) 2007 NeedLocTracking = true; 2008 2009 // If the user requested a flag that requires source locations available in 2010 // the backend, make sure that the backend tracks source location information. 2011 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2012 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2013 2014 // Parse -fsanitize-recover= arguments. 2015 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2016 parseSanitizerKinds("-fsanitize-recover=", 2017 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2018 Opts.SanitizeRecover); 2019 parseSanitizerKinds("-fsanitize-trap=", 2020 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2021 Opts.SanitizeTrap); 2022 2023 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2024 2025 if (Args.hasArg(options::OPT_ffinite_loops)) 2026 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2027 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2028 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2029 2030 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2031 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2032 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2033 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2034 2035 return Diags.getNumErrors() == NumErrorsBefore; 2036 } 2037 2038 static void 2039 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2040 SmallVectorImpl<const char *> &Args, 2041 CompilerInvocation::StringAllocator SA) { 2042 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2043 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2044 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2045 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2046 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2047 MERGER, EXTRACTOR, TABLE_INDEX) \ 2048 GENERATE_OPTION_WITH_MARSHALLING( \ 2049 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2050 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2051 #include "clang/Driver/Options.inc" 2052 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2053 2054 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2055 GenerateArg(Args, OPT_show_includes, SA); 2056 2057 for (const auto &Dep : Opts.ExtraDeps) { 2058 switch (Dep.second) { 2059 case EDK_SanitizeIgnorelist: 2060 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2061 continue; 2062 case EDK_ModuleFile: 2063 // Module file arguments are generated from FrontendOptions and 2064 // HeaderSearchOptions. 2065 continue; 2066 case EDK_ProfileList: 2067 // Profile list arguments are generated from LanguageOptions via the 2068 // marshalling infrastructure. 2069 continue; 2070 case EDK_DepFileEntry: 2071 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2072 break; 2073 } 2074 } 2075 } 2076 2077 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2078 ArgList &Args, DiagnosticsEngine &Diags, 2079 frontend::ActionKind Action, 2080 bool ShowLineMarkers) { 2081 unsigned NumErrorsBefore = Diags.getNumErrors(); 2082 2083 DependencyOutputOptions &DependencyOutputOpts = Opts; 2084 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2085 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2086 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2087 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2088 MERGER, EXTRACTOR, TABLE_INDEX) \ 2089 PARSE_OPTION_WITH_MARSHALLING( \ 2090 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2091 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2092 #include "clang/Driver/Options.inc" 2093 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2094 2095 if (Args.hasArg(OPT_show_includes)) { 2096 // Writing both /showIncludes and preprocessor output to stdout 2097 // would produce interleaved output, so use stderr for /showIncludes. 2098 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2099 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2100 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2101 else 2102 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2103 } else { 2104 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2105 } 2106 2107 // Add sanitizer ignorelists as extra dependencies. 2108 // They won't be discovered by the regular preprocessor, so 2109 // we let make / ninja to know about this implicit dependency. 2110 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2111 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2112 StringRef Val = A->getValue(); 2113 if (!Val.contains('=')) 2114 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2115 } 2116 if (Opts.IncludeSystemHeaders) { 2117 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2118 StringRef Val = A->getValue(); 2119 if (!Val.contains('=')) 2120 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2121 } 2122 } 2123 } 2124 2125 // -fprofile-list= dependencies. 2126 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2127 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2128 2129 // Propagate the extra dependencies. 2130 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2131 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2132 2133 // Only the -fmodule-file=<file> form. 2134 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2135 StringRef Val = A->getValue(); 2136 if (!Val.contains('=')) 2137 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2138 } 2139 2140 return Diags.getNumErrors() == NumErrorsBefore; 2141 } 2142 2143 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2144 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2145 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2146 // Support both clang's -f[no-]color-diagnostics and gcc's 2147 // -f[no-]diagnostics-colors[=never|always|auto]. 2148 enum { 2149 Colors_On, 2150 Colors_Off, 2151 Colors_Auto 2152 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2153 for (auto *A : Args) { 2154 const Option &O = A->getOption(); 2155 if (O.matches(options::OPT_fcolor_diagnostics)) { 2156 ShowColors = Colors_On; 2157 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2158 ShowColors = Colors_Off; 2159 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2160 StringRef Value(A->getValue()); 2161 if (Value == "always") 2162 ShowColors = Colors_On; 2163 else if (Value == "never") 2164 ShowColors = Colors_Off; 2165 else if (Value == "auto") 2166 ShowColors = Colors_Auto; 2167 } 2168 } 2169 return ShowColors == Colors_On || 2170 (ShowColors == Colors_Auto && 2171 llvm::sys::Process::StandardErrHasColors()); 2172 } 2173 2174 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2175 DiagnosticsEngine &Diags) { 2176 bool Success = true; 2177 for (const auto &Prefix : VerifyPrefixes) { 2178 // Every prefix must start with a letter and contain only alphanumeric 2179 // characters, hyphens, and underscores. 2180 auto BadChar = llvm::find_if(Prefix, [](char C) { 2181 return !isAlphanumeric(C) && C != '-' && C != '_'; 2182 }); 2183 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2184 Success = false; 2185 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2186 Diags.Report(diag::note_drv_verify_prefix_spelling); 2187 } 2188 } 2189 return Success; 2190 } 2191 2192 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2193 SmallVectorImpl<const char *> &Args, 2194 CompilerInvocation::StringAllocator SA) { 2195 const FileSystemOptions &FileSystemOpts = Opts; 2196 2197 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2198 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2199 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2200 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2201 MERGER, EXTRACTOR, TABLE_INDEX) \ 2202 GENERATE_OPTION_WITH_MARSHALLING( \ 2203 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2204 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2205 #include "clang/Driver/Options.inc" 2206 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2207 } 2208 2209 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2210 DiagnosticsEngine &Diags) { 2211 unsigned NumErrorsBefore = Diags.getNumErrors(); 2212 2213 FileSystemOptions &FileSystemOpts = Opts; 2214 2215 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2216 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2217 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2218 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2219 MERGER, EXTRACTOR, TABLE_INDEX) \ 2220 PARSE_OPTION_WITH_MARSHALLING( \ 2221 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2222 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2223 #include "clang/Driver/Options.inc" 2224 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2225 2226 return Diags.getNumErrors() == NumErrorsBefore; 2227 } 2228 2229 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2230 SmallVectorImpl<const char *> &Args, 2231 CompilerInvocation::StringAllocator SA) { 2232 const MigratorOptions &MigratorOpts = Opts; 2233 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2234 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2235 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2236 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2237 MERGER, EXTRACTOR, TABLE_INDEX) \ 2238 GENERATE_OPTION_WITH_MARSHALLING( \ 2239 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2240 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2241 #include "clang/Driver/Options.inc" 2242 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2243 } 2244 2245 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2246 DiagnosticsEngine &Diags) { 2247 unsigned NumErrorsBefore = Diags.getNumErrors(); 2248 2249 MigratorOptions &MigratorOpts = Opts; 2250 2251 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2252 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2253 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2254 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2255 MERGER, EXTRACTOR, TABLE_INDEX) \ 2256 PARSE_OPTION_WITH_MARSHALLING( \ 2257 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2258 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2259 #include "clang/Driver/Options.inc" 2260 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2261 2262 return Diags.getNumErrors() == NumErrorsBefore; 2263 } 2264 2265 void CompilerInvocation::GenerateDiagnosticArgs( 2266 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2267 StringAllocator SA, bool DefaultDiagColor) { 2268 const DiagnosticOptions *DiagnosticOpts = &Opts; 2269 #define DIAG_OPTION_WITH_MARSHALLING( \ 2270 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2271 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2272 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2273 MERGER, EXTRACTOR, TABLE_INDEX) \ 2274 GENERATE_OPTION_WITH_MARSHALLING( \ 2275 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2276 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2277 #include "clang/Driver/Options.inc" 2278 #undef DIAG_OPTION_WITH_MARSHALLING 2279 2280 if (!Opts.DiagnosticSerializationFile.empty()) 2281 GenerateArg(Args, OPT_diagnostic_serialized_file, 2282 Opts.DiagnosticSerializationFile, SA); 2283 2284 if (Opts.ShowColors) 2285 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2286 2287 if (Opts.VerifyDiagnostics && 2288 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2289 GenerateArg(Args, OPT_verify, SA); 2290 2291 for (const auto &Prefix : Opts.VerifyPrefixes) 2292 if (Prefix != "expected") 2293 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2294 2295 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2296 if (VIU == DiagnosticLevelMask::None) { 2297 // This is the default, don't generate anything. 2298 } else if (VIU == DiagnosticLevelMask::All) { 2299 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2300 } else { 2301 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2302 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2303 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2304 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2305 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2306 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2307 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2308 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2309 } 2310 2311 for (const auto &Warning : Opts.Warnings) { 2312 // This option is automatically generated from UndefPrefixes. 2313 if (Warning == "undef-prefix") 2314 continue; 2315 Args.push_back(SA(StringRef("-W") + Warning)); 2316 } 2317 2318 for (const auto &Remark : Opts.Remarks) { 2319 // These arguments are generated from OptimizationRemark fields of 2320 // CodeGenOptions. 2321 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2322 "pass-analysis", "no-pass-analysis", 2323 "pass-missed", "no-pass-missed"}; 2324 if (llvm::is_contained(IgnoredRemarks, Remark)) 2325 continue; 2326 2327 Args.push_back(SA(StringRef("-R") + Remark)); 2328 } 2329 } 2330 2331 std::unique_ptr<DiagnosticOptions> 2332 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2333 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2334 unsigned MissingArgIndex, MissingArgCount; 2335 InputArgList Args = getDriverOptTable().ParseArgs( 2336 Argv.slice(1), MissingArgIndex, MissingArgCount); 2337 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2338 // Any errors that would be diagnosed here will also be diagnosed later, 2339 // when the DiagnosticsEngine actually exists. 2340 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2341 return DiagOpts; 2342 } 2343 2344 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2345 DiagnosticsEngine *Diags, 2346 bool DefaultDiagColor) { 2347 Optional<DiagnosticsEngine> IgnoringDiags; 2348 if (!Diags) { 2349 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2350 new IgnoringDiagConsumer()); 2351 Diags = &*IgnoringDiags; 2352 } 2353 2354 unsigned NumErrorsBefore = Diags->getNumErrors(); 2355 2356 // The key paths of diagnostic options defined in Options.td start with 2357 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2358 DiagnosticOptions *DiagnosticOpts = &Opts; 2359 2360 #define DIAG_OPTION_WITH_MARSHALLING( \ 2361 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2362 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2363 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2364 MERGER, EXTRACTOR, TABLE_INDEX) \ 2365 PARSE_OPTION_WITH_MARSHALLING( \ 2366 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2367 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2368 #include "clang/Driver/Options.inc" 2369 #undef DIAG_OPTION_WITH_MARSHALLING 2370 2371 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2372 2373 if (Arg *A = 2374 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2375 Opts.DiagnosticSerializationFile = A->getValue(); 2376 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2377 2378 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2379 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2380 if (Args.hasArg(OPT_verify)) 2381 Opts.VerifyPrefixes.push_back("expected"); 2382 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2383 // then sort it to prepare for fast lookup using std::binary_search. 2384 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2385 Opts.VerifyDiagnostics = false; 2386 else 2387 llvm::sort(Opts.VerifyPrefixes); 2388 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2389 parseDiagnosticLevelMask( 2390 "-verify-ignore-unexpected=", 2391 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2392 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2393 DiagMask = DiagnosticLevelMask::All; 2394 Opts.setVerifyIgnoreUnexpected(DiagMask); 2395 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2396 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2397 Diags->Report(diag::warn_ignoring_ftabstop_value) 2398 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2399 } 2400 2401 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2402 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2403 2404 return Diags->getNumErrors() == NumErrorsBefore; 2405 } 2406 2407 /// Parse the argument to the -ftest-module-file-extension 2408 /// command-line argument. 2409 /// 2410 /// \returns true on error, false on success. 2411 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2412 std::string &BlockName, 2413 unsigned &MajorVersion, 2414 unsigned &MinorVersion, 2415 bool &Hashed, 2416 std::string &UserInfo) { 2417 SmallVector<StringRef, 5> Args; 2418 Arg.split(Args, ':', 5); 2419 if (Args.size() < 5) 2420 return true; 2421 2422 BlockName = std::string(Args[0]); 2423 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2424 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2425 if (Args[3].getAsInteger(2, Hashed)) return true; 2426 if (Args.size() > 4) 2427 UserInfo = std::string(Args[4]); 2428 return false; 2429 } 2430 2431 /// Return a table that associates command line option specifiers with the 2432 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2433 /// intentionally missing, as this case is handled separately from other 2434 /// frontend options. 2435 static const auto &getFrontendActionTable() { 2436 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2437 {frontend::ASTDeclList, OPT_ast_list}, 2438 2439 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2440 {frontend::ASTDump, OPT_ast_dump_all}, 2441 {frontend::ASTDump, OPT_ast_dump_EQ}, 2442 {frontend::ASTDump, OPT_ast_dump}, 2443 {frontend::ASTDump, OPT_ast_dump_lookups}, 2444 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2445 2446 {frontend::ASTPrint, OPT_ast_print}, 2447 {frontend::ASTView, OPT_ast_view}, 2448 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2449 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2450 {frontend::DumpTokens, OPT_dump_tokens}, 2451 {frontend::EmitAssembly, OPT_S}, 2452 {frontend::EmitBC, OPT_emit_llvm_bc}, 2453 {frontend::EmitHTML, OPT_emit_html}, 2454 {frontend::EmitLLVM, OPT_emit_llvm}, 2455 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2456 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2457 {frontend::EmitObj, OPT_emit_obj}, 2458 {frontend::ExtractAPI, OPT_extract_api}, 2459 2460 {frontend::FixIt, OPT_fixit_EQ}, 2461 {frontend::FixIt, OPT_fixit}, 2462 2463 {frontend::GenerateModule, OPT_emit_module}, 2464 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2465 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2466 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2467 {frontend::GeneratePCH, OPT_emit_pch}, 2468 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2469 {frontend::InitOnly, OPT_init_only}, 2470 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2471 {frontend::ModuleFileInfo, OPT_module_file_info}, 2472 {frontend::VerifyPCH, OPT_verify_pch}, 2473 {frontend::PrintPreamble, OPT_print_preamble}, 2474 {frontend::PrintPreprocessedInput, OPT_E}, 2475 {frontend::TemplightDump, OPT_templight_dump}, 2476 {frontend::RewriteMacros, OPT_rewrite_macros}, 2477 {frontend::RewriteObjC, OPT_rewrite_objc}, 2478 {frontend::RewriteTest, OPT_rewrite_test}, 2479 {frontend::RunAnalysis, OPT_analyze}, 2480 {frontend::MigrateSource, OPT_migrate}, 2481 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2482 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2483 OPT_print_dependency_directives_minimized_source}, 2484 }; 2485 2486 return Table; 2487 } 2488 2489 /// Maps command line option to frontend action. 2490 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2491 for (const auto &ActionOpt : getFrontendActionTable()) 2492 if (ActionOpt.second == Opt.getID()) 2493 return ActionOpt.first; 2494 2495 return None; 2496 } 2497 2498 /// Maps frontend action to command line option. 2499 static Optional<OptSpecifier> 2500 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2501 for (const auto &ActionOpt : getFrontendActionTable()) 2502 if (ActionOpt.first == ProgramAction) 2503 return OptSpecifier(ActionOpt.second); 2504 2505 return None; 2506 } 2507 2508 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2509 SmallVectorImpl<const char *> &Args, 2510 CompilerInvocation::StringAllocator SA, 2511 bool IsHeader) { 2512 const FrontendOptions &FrontendOpts = Opts; 2513 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2514 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2515 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2516 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2517 MERGER, EXTRACTOR, TABLE_INDEX) \ 2518 GENERATE_OPTION_WITH_MARSHALLING( \ 2519 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2520 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2521 #include "clang/Driver/Options.inc" 2522 #undef FRONTEND_OPTION_WITH_MARSHALLING 2523 2524 Optional<OptSpecifier> ProgramActionOpt = 2525 getProgramActionOpt(Opts.ProgramAction); 2526 2527 // Generating a simple flag covers most frontend actions. 2528 std::function<void()> GenerateProgramAction = [&]() { 2529 GenerateArg(Args, *ProgramActionOpt, SA); 2530 }; 2531 2532 if (!ProgramActionOpt) { 2533 // PluginAction is the only program action handled separately. 2534 assert(Opts.ProgramAction == frontend::PluginAction && 2535 "Frontend action without option."); 2536 GenerateProgramAction = [&]() { 2537 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2538 }; 2539 } 2540 2541 // FIXME: Simplify the complex 'AST dump' command line. 2542 if (Opts.ProgramAction == frontend::ASTDump) { 2543 GenerateProgramAction = [&]() { 2544 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2545 // marshalling infrastructure. 2546 2547 if (Opts.ASTDumpFormat != ADOF_Default) { 2548 StringRef Format; 2549 switch (Opts.ASTDumpFormat) { 2550 case ADOF_Default: 2551 llvm_unreachable("Default AST dump format."); 2552 case ADOF_JSON: 2553 Format = "json"; 2554 break; 2555 } 2556 2557 if (Opts.ASTDumpAll) 2558 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2559 if (Opts.ASTDumpDecls) 2560 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2561 } else { 2562 if (Opts.ASTDumpAll) 2563 GenerateArg(Args, OPT_ast_dump_all, SA); 2564 if (Opts.ASTDumpDecls) 2565 GenerateArg(Args, OPT_ast_dump, SA); 2566 } 2567 }; 2568 } 2569 2570 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2571 GenerateProgramAction = [&]() { 2572 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2573 }; 2574 } 2575 2576 GenerateProgramAction(); 2577 2578 for (const auto &PluginArgs : Opts.PluginArgs) { 2579 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2580 const char *Spelling = 2581 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2582 for (const auto &PluginArg : PluginArgs.second) 2583 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2584 } 2585 2586 for (const auto &Ext : Opts.ModuleFileExtensions) 2587 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2588 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2589 2590 if (!Opts.CodeCompletionAt.FileName.empty()) 2591 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2592 SA); 2593 2594 for (const auto &Plugin : Opts.Plugins) 2595 GenerateArg(Args, OPT_load, Plugin, SA); 2596 2597 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2598 2599 for (const auto &ModuleFile : Opts.ModuleFiles) 2600 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2601 2602 if (Opts.AuxTargetCPU) 2603 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2604 2605 if (Opts.AuxTargetFeatures) 2606 for (const auto &Feature : *Opts.AuxTargetFeatures) 2607 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2608 2609 { 2610 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2611 StringRef ModuleMap = 2612 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2613 StringRef HeaderUnit = ""; 2614 switch (Opts.DashX.getHeaderUnitKind()) { 2615 case InputKind::HeaderUnit_None: 2616 break; 2617 case InputKind::HeaderUnit_User: 2618 HeaderUnit = "-user"; 2619 break; 2620 case InputKind::HeaderUnit_System: 2621 HeaderUnit = "-system"; 2622 break; 2623 case InputKind::HeaderUnit_Abs: 2624 HeaderUnit = "-header-unit"; 2625 break; 2626 } 2627 StringRef Header = IsHeader ? "-header" : ""; 2628 2629 StringRef Lang; 2630 switch (Opts.DashX.getLanguage()) { 2631 case Language::C: 2632 Lang = "c"; 2633 break; 2634 case Language::OpenCL: 2635 Lang = "cl"; 2636 break; 2637 case Language::OpenCLCXX: 2638 Lang = "clcpp"; 2639 break; 2640 case Language::CUDA: 2641 Lang = "cuda"; 2642 break; 2643 case Language::HIP: 2644 Lang = "hip"; 2645 break; 2646 case Language::CXX: 2647 Lang = "c++"; 2648 break; 2649 case Language::ObjC: 2650 Lang = "objective-c"; 2651 break; 2652 case Language::ObjCXX: 2653 Lang = "objective-c++"; 2654 break; 2655 case Language::RenderScript: 2656 Lang = "renderscript"; 2657 break; 2658 case Language::Asm: 2659 Lang = "assembler-with-cpp"; 2660 break; 2661 case Language::Unknown: 2662 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2663 "Generating -x argument for unknown language (not precompiled)."); 2664 Lang = "ast"; 2665 break; 2666 case Language::LLVM_IR: 2667 Lang = "ir"; 2668 break; 2669 case Language::HLSL: 2670 Lang = "hlsl"; 2671 break; 2672 } 2673 2674 GenerateArg(Args, OPT_x, 2675 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2676 } 2677 2678 // OPT_INPUT has a unique class, generate it directly. 2679 for (const auto &Input : Opts.Inputs) 2680 Args.push_back(SA(Input.getFile())); 2681 } 2682 2683 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2684 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2685 unsigned NumErrorsBefore = Diags.getNumErrors(); 2686 2687 FrontendOptions &FrontendOpts = Opts; 2688 2689 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2690 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2691 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2692 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2693 MERGER, EXTRACTOR, TABLE_INDEX) \ 2694 PARSE_OPTION_WITH_MARSHALLING( \ 2695 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2696 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2697 #include "clang/Driver/Options.inc" 2698 #undef FRONTEND_OPTION_WITH_MARSHALLING 2699 2700 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2701 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2702 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2703 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2704 assert(ProgramAction && "Option specifier not in Action_Group."); 2705 2706 if (ProgramAction == frontend::ASTDump && 2707 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2708 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2709 .CaseLower("default", ADOF_Default) 2710 .CaseLower("json", ADOF_JSON) 2711 .Default(std::numeric_limits<unsigned>::max()); 2712 2713 if (Val != std::numeric_limits<unsigned>::max()) 2714 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2715 else { 2716 Diags.Report(diag::err_drv_invalid_value) 2717 << A->getAsString(Args) << A->getValue(); 2718 Opts.ASTDumpFormat = ADOF_Default; 2719 } 2720 } 2721 2722 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2723 Opts.FixItSuffix = A->getValue(); 2724 2725 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2726 StringRef ArgStr = 2727 Args.hasArg(OPT_interface_stub_version_EQ) 2728 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2729 : "ifs-v1"; 2730 if (ArgStr == "experimental-yaml-elf-v1" || 2731 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2732 ArgStr == "experimental-tapi-elf-v1") { 2733 std::string ErrorMessage = 2734 "Invalid interface stub format: " + ArgStr.str() + 2735 " is deprecated."; 2736 Diags.Report(diag::err_drv_invalid_value) 2737 << "Must specify a valid interface stub format type, ie: " 2738 "-interface-stub-version=ifs-v1" 2739 << ErrorMessage; 2740 ProgramAction = frontend::ParseSyntaxOnly; 2741 } else if (!ArgStr.startswith("ifs-")) { 2742 std::string ErrorMessage = 2743 "Invalid interface stub format: " + ArgStr.str() + "."; 2744 Diags.Report(diag::err_drv_invalid_value) 2745 << "Must specify a valid interface stub format type, ie: " 2746 "-interface-stub-version=ifs-v1" 2747 << ErrorMessage; 2748 ProgramAction = frontend::ParseSyntaxOnly; 2749 } 2750 } 2751 2752 Opts.ProgramAction = *ProgramAction; 2753 } 2754 2755 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2756 Opts.Plugins.emplace_back(A->getValue(0)); 2757 Opts.ProgramAction = frontend::PluginAction; 2758 Opts.ActionName = A->getValue(); 2759 } 2760 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2761 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2762 2763 for (const std::string &Arg : 2764 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2765 std::string BlockName; 2766 unsigned MajorVersion; 2767 unsigned MinorVersion; 2768 bool Hashed; 2769 std::string UserInfo; 2770 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2771 MinorVersion, Hashed, UserInfo)) { 2772 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2773 2774 continue; 2775 } 2776 2777 // Add the testing module file extension. 2778 Opts.ModuleFileExtensions.push_back( 2779 std::make_shared<TestModuleFileExtension>( 2780 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2781 } 2782 2783 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2784 Opts.CodeCompletionAt = 2785 ParsedSourceLocation::FromString(A->getValue()); 2786 if (Opts.CodeCompletionAt.FileName.empty()) 2787 Diags.Report(diag::err_drv_invalid_value) 2788 << A->getAsString(Args) << A->getValue(); 2789 } 2790 2791 Opts.Plugins = Args.getAllArgValues(OPT_load); 2792 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2793 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2794 // Only the -fmodule-file=<file> form. 2795 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2796 StringRef Val = A->getValue(); 2797 if (!Val.contains('=')) 2798 Opts.ModuleFiles.push_back(std::string(Val)); 2799 } 2800 2801 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2802 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2803 << "-emit-module"; 2804 2805 if (Args.hasArg(OPT_aux_target_cpu)) 2806 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2807 if (Args.hasArg(OPT_aux_target_feature)) 2808 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2809 2810 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2811 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2812 Diags.Report(diag::err_drv_argument_not_allowed_with) 2813 << "ARC migration" << "ObjC migration"; 2814 } 2815 2816 InputKind DashX(Language::Unknown); 2817 if (const Arg *A = Args.getLastArg(OPT_x)) { 2818 StringRef XValue = A->getValue(); 2819 2820 // Parse suffixes: 2821 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2822 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2823 bool Preprocessed = XValue.consume_back("-cpp-output"); 2824 bool ModuleMap = XValue.consume_back("-module-map"); 2825 // Detect and consume the header indicator. 2826 bool IsHeader = 2827 XValue != "precompiled-header" && XValue.consume_back("-header"); 2828 2829 // If we have c++-{user,system}-header, that indicates a header unit input 2830 // likewise, if the user put -fmodule-header together with a header with an 2831 // absolute path (header-unit-header). 2832 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2833 if (IsHeader || Preprocessed) { 2834 if (XValue.consume_back("-header-unit")) 2835 HUK = InputKind::HeaderUnit_Abs; 2836 else if (XValue.consume_back("-system")) 2837 HUK = InputKind::HeaderUnit_System; 2838 else if (XValue.consume_back("-user")) 2839 HUK = InputKind::HeaderUnit_User; 2840 } 2841 2842 // The value set by this processing is an un-preprocessed source which is 2843 // not intended to be a module map or header unit. 2844 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2845 HUK == InputKind::HeaderUnit_None; 2846 2847 // Principal languages. 2848 DashX = llvm::StringSwitch<InputKind>(XValue) 2849 .Case("c", Language::C) 2850 .Case("cl", Language::OpenCL) 2851 .Case("clcpp", Language::OpenCLCXX) 2852 .Case("cuda", Language::CUDA) 2853 .Case("hip", Language::HIP) 2854 .Case("c++", Language::CXX) 2855 .Case("objective-c", Language::ObjC) 2856 .Case("objective-c++", Language::ObjCXX) 2857 .Case("renderscript", Language::RenderScript) 2858 .Case("hlsl", Language::HLSL) 2859 .Default(Language::Unknown); 2860 2861 // "objc[++]-cpp-output" is an acceptable synonym for 2862 // "objective-c[++]-cpp-output". 2863 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2864 HUK == InputKind::HeaderUnit_None) 2865 DashX = llvm::StringSwitch<InputKind>(XValue) 2866 .Case("objc", Language::ObjC) 2867 .Case("objc++", Language::ObjCXX) 2868 .Default(Language::Unknown); 2869 2870 // Some special cases cannot be combined with suffixes. 2871 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2872 HUK == InputKind::HeaderUnit_None) 2873 DashX = llvm::StringSwitch<InputKind>(XValue) 2874 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2875 .Case("assembler-with-cpp", Language::Asm) 2876 .Cases("ast", "pcm", "precompiled-header", 2877 InputKind(Language::Unknown, InputKind::Precompiled)) 2878 .Case("ir", Language::LLVM_IR) 2879 .Default(Language::Unknown); 2880 2881 if (DashX.isUnknown()) 2882 Diags.Report(diag::err_drv_invalid_value) 2883 << A->getAsString(Args) << A->getValue(); 2884 2885 if (Preprocessed) 2886 DashX = DashX.getPreprocessed(); 2887 // A regular header is considered mutually exclusive with a header unit. 2888 if (HUK != InputKind::HeaderUnit_None) { 2889 DashX = DashX.withHeaderUnit(HUK); 2890 IsHeaderFile = true; 2891 } else if (IsHeaderFile) 2892 DashX = DashX.getHeader(); 2893 if (ModuleMap) 2894 DashX = DashX.withFormat(InputKind::ModuleMap); 2895 } 2896 2897 // '-' is the default input if none is given. 2898 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2899 Opts.Inputs.clear(); 2900 if (Inputs.empty()) 2901 Inputs.push_back("-"); 2902 2903 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2904 Inputs.size() > 1) 2905 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2906 2907 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2908 InputKind IK = DashX; 2909 if (IK.isUnknown()) { 2910 IK = FrontendOptions::getInputKindForExtension( 2911 StringRef(Inputs[i]).rsplit('.').second); 2912 // FIXME: Warn on this? 2913 if (IK.isUnknown()) 2914 IK = Language::C; 2915 // FIXME: Remove this hack. 2916 if (i == 0) 2917 DashX = IK; 2918 } 2919 2920 bool IsSystem = false; 2921 2922 // The -emit-module action implicitly takes a module map. 2923 if (Opts.ProgramAction == frontend::GenerateModule && 2924 IK.getFormat() == InputKind::Source) { 2925 IK = IK.withFormat(InputKind::ModuleMap); 2926 IsSystem = Opts.IsSystemModule; 2927 } 2928 2929 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2930 } 2931 2932 Opts.DashX = DashX; 2933 2934 return Diags.getNumErrors() == NumErrorsBefore; 2935 } 2936 2937 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2938 void *MainAddr) { 2939 std::string ClangExecutable = 2940 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2941 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2942 } 2943 2944 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2945 SmallVectorImpl<const char *> &Args, 2946 CompilerInvocation::StringAllocator SA) { 2947 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2948 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2949 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2950 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2951 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2952 MERGER, EXTRACTOR, TABLE_INDEX) \ 2953 GENERATE_OPTION_WITH_MARSHALLING( \ 2954 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2955 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2956 #include "clang/Driver/Options.inc" 2957 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2958 2959 if (Opts.UseLibcxx) 2960 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2961 2962 if (!Opts.ModuleCachePath.empty()) 2963 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2964 2965 for (const auto &File : Opts.PrebuiltModuleFiles) 2966 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2967 2968 for (const auto &Path : Opts.PrebuiltModulePaths) 2969 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2970 2971 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2972 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2973 2974 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2975 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2976 llvm::Optional<bool> IsFramework, 2977 llvm::Optional<bool> IgnoreSysRoot) { 2978 return llvm::is_contained(Groups, Entry.Group) && 2979 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2980 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2981 }; 2982 2983 auto It = Opts.UserEntries.begin(); 2984 auto End = Opts.UserEntries.end(); 2985 2986 // Add -I..., -F..., and -index-header-map options in order. 2987 for (; It < End && 2988 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2989 ++It) { 2990 OptSpecifier Opt = [It, Matches]() { 2991 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2992 return OPT_F; 2993 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2994 return OPT_I; 2995 if (Matches(*It, frontend::Angled, true, true)) 2996 return OPT_F; 2997 if (Matches(*It, frontend::Angled, false, true)) 2998 return OPT_I; 2999 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3000 }(); 3001 3002 if (It->Group == frontend::IndexHeaderMap) 3003 GenerateArg(Args, OPT_index_header_map, SA); 3004 GenerateArg(Args, Opt, It->Path, SA); 3005 }; 3006 3007 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3008 // have already been generated as "-I[xx]yy". If that's the case, their 3009 // position on command line was such that this has no semantic impact on 3010 // include paths. 3011 for (; It < End && 3012 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3013 ++It) { 3014 OptSpecifier Opt = 3015 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3016 GenerateArg(Args, Opt, It->Path, SA); 3017 } 3018 3019 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3020 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3021 // command line was such that this has no semantic impact on include paths. 3022 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3023 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3024 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3025 GenerateArg(Args, OPT_iquote, It->Path, SA); 3026 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3027 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3028 It->Path, SA); 3029 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3030 GenerateArg(Args, OPT_iframework, It->Path, SA); 3031 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3032 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3033 3034 // Add the paths for the various language specific isystem flags. 3035 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3036 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3037 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3038 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3039 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3040 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3041 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3042 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3043 3044 // Add the internal paths from a driver that detects standard include paths. 3045 // Note: Some paths that came from "-internal-isystem" arguments may have 3046 // already been generated as "-isystem". If that's the case, their position on 3047 // command line was such that this has no semantic impact on include paths. 3048 for (; It < End && 3049 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3050 ++It) { 3051 OptSpecifier Opt = It->Group == frontend::System 3052 ? OPT_internal_isystem 3053 : OPT_internal_externc_isystem; 3054 GenerateArg(Args, Opt, It->Path, SA); 3055 } 3056 3057 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3058 3059 // Add the path prefixes which are implicitly treated as being system headers. 3060 for (const auto &P : Opts.SystemHeaderPrefixes) { 3061 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3062 : OPT_no_system_header_prefix; 3063 GenerateArg(Args, Opt, P.Prefix, SA); 3064 } 3065 3066 for (const std::string &F : Opts.VFSOverlayFiles) 3067 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3068 } 3069 3070 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3071 DiagnosticsEngine &Diags, 3072 const std::string &WorkingDir) { 3073 unsigned NumErrorsBefore = Diags.getNumErrors(); 3074 3075 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3076 3077 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3078 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3079 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3080 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3081 MERGER, EXTRACTOR, TABLE_INDEX) \ 3082 PARSE_OPTION_WITH_MARSHALLING( \ 3083 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3084 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3085 #include "clang/Driver/Options.inc" 3086 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3087 3088 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3089 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3090 3091 // Canonicalize -fmodules-cache-path before storing it. 3092 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3093 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3094 if (WorkingDir.empty()) 3095 llvm::sys::fs::make_absolute(P); 3096 else 3097 llvm::sys::fs::make_absolute(WorkingDir, P); 3098 } 3099 llvm::sys::path::remove_dots(P); 3100 Opts.ModuleCachePath = std::string(P.str()); 3101 3102 // Only the -fmodule-file=<name>=<file> form. 3103 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3104 StringRef Val = A->getValue(); 3105 if (Val.contains('=')) { 3106 auto Split = Val.split('='); 3107 Opts.PrebuiltModuleFiles.insert( 3108 {std::string(Split.first), std::string(Split.second)}); 3109 } 3110 } 3111 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3112 Opts.AddPrebuiltModulePath(A->getValue()); 3113 3114 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3115 StringRef MacroDef = A->getValue(); 3116 Opts.ModulesIgnoreMacros.insert( 3117 llvm::CachedHashString(MacroDef.split('=').first)); 3118 } 3119 3120 // Add -I..., -F..., and -index-header-map options in order. 3121 bool IsIndexHeaderMap = false; 3122 bool IsSysrootSpecified = 3123 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3124 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3125 if (A->getOption().matches(OPT_index_header_map)) { 3126 // -index-header-map applies to the next -I or -F. 3127 IsIndexHeaderMap = true; 3128 continue; 3129 } 3130 3131 frontend::IncludeDirGroup Group = 3132 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3133 3134 bool IsFramework = A->getOption().matches(OPT_F); 3135 std::string Path = A->getValue(); 3136 3137 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3138 SmallString<32> Buffer; 3139 llvm::sys::path::append(Buffer, Opts.Sysroot, 3140 llvm::StringRef(A->getValue()).substr(1)); 3141 Path = std::string(Buffer.str()); 3142 } 3143 3144 Opts.AddPath(Path, Group, IsFramework, 3145 /*IgnoreSysroot*/ true); 3146 IsIndexHeaderMap = false; 3147 } 3148 3149 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3150 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3151 for (const auto *A : 3152 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3153 if (A->getOption().matches(OPT_iprefix)) 3154 Prefix = A->getValue(); 3155 else if (A->getOption().matches(OPT_iwithprefix)) 3156 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3157 else 3158 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3159 } 3160 3161 for (const auto *A : Args.filtered(OPT_idirafter)) 3162 Opts.AddPath(A->getValue(), frontend::After, false, true); 3163 for (const auto *A : Args.filtered(OPT_iquote)) 3164 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3165 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3166 Opts.AddPath(A->getValue(), frontend::System, false, 3167 !A->getOption().matches(OPT_iwithsysroot)); 3168 for (const auto *A : Args.filtered(OPT_iframework)) 3169 Opts.AddPath(A->getValue(), frontend::System, true, true); 3170 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3171 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3172 /*IgnoreSysRoot=*/false); 3173 3174 // Add the paths for the various language specific isystem flags. 3175 for (const auto *A : Args.filtered(OPT_c_isystem)) 3176 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3177 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3178 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3179 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3180 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3181 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3182 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3183 3184 // Add the internal paths from a driver that detects standard include paths. 3185 for (const auto *A : 3186 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3187 frontend::IncludeDirGroup Group = frontend::System; 3188 if (A->getOption().matches(OPT_internal_externc_isystem)) 3189 Group = frontend::ExternCSystem; 3190 Opts.AddPath(A->getValue(), Group, false, true); 3191 } 3192 3193 // Add the path prefixes which are implicitly treated as being system headers. 3194 for (const auto *A : 3195 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3196 Opts.AddSystemHeaderPrefix( 3197 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3198 3199 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3200 Opts.AddVFSOverlayFile(A->getValue()); 3201 3202 return Diags.getNumErrors() == NumErrorsBefore; 3203 } 3204 3205 /// Check if input file kind and language standard are compatible. 3206 static bool IsInputCompatibleWithStandard(InputKind IK, 3207 const LangStandard &S) { 3208 switch (IK.getLanguage()) { 3209 case Language::Unknown: 3210 case Language::LLVM_IR: 3211 llvm_unreachable("should not parse language flags for this input"); 3212 3213 case Language::C: 3214 case Language::ObjC: 3215 case Language::RenderScript: 3216 return S.getLanguage() == Language::C; 3217 3218 case Language::OpenCL: 3219 return S.getLanguage() == Language::OpenCL || 3220 S.getLanguage() == Language::OpenCLCXX; 3221 3222 case Language::OpenCLCXX: 3223 return S.getLanguage() == Language::OpenCLCXX; 3224 3225 case Language::CXX: 3226 case Language::ObjCXX: 3227 return S.getLanguage() == Language::CXX; 3228 3229 case Language::CUDA: 3230 // FIXME: What -std= values should be permitted for CUDA compilations? 3231 return S.getLanguage() == Language::CUDA || 3232 S.getLanguage() == Language::CXX; 3233 3234 case Language::HIP: 3235 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3236 3237 case Language::Asm: 3238 // Accept (and ignore) all -std= values. 3239 // FIXME: The -std= value is not ignored; it affects the tokenization 3240 // and preprocessing rules if we're preprocessing this asm input. 3241 return true; 3242 3243 case Language::HLSL: 3244 return S.getLanguage() == Language::HLSL; 3245 } 3246 3247 llvm_unreachable("unexpected input language"); 3248 } 3249 3250 /// Get language name for given input kind. 3251 static StringRef GetInputKindName(InputKind IK) { 3252 switch (IK.getLanguage()) { 3253 case Language::C: 3254 return "C"; 3255 case Language::ObjC: 3256 return "Objective-C"; 3257 case Language::CXX: 3258 return "C++"; 3259 case Language::ObjCXX: 3260 return "Objective-C++"; 3261 case Language::OpenCL: 3262 return "OpenCL"; 3263 case Language::OpenCLCXX: 3264 return "C++ for OpenCL"; 3265 case Language::CUDA: 3266 return "CUDA"; 3267 case Language::RenderScript: 3268 return "RenderScript"; 3269 case Language::HIP: 3270 return "HIP"; 3271 3272 case Language::Asm: 3273 return "Asm"; 3274 case Language::LLVM_IR: 3275 return "LLVM IR"; 3276 3277 case Language::HLSL: 3278 return "HLSL"; 3279 3280 case Language::Unknown: 3281 break; 3282 } 3283 llvm_unreachable("unknown input language"); 3284 } 3285 3286 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3287 SmallVectorImpl<const char *> &Args, 3288 StringAllocator SA, 3289 const llvm::Triple &T, InputKind IK) { 3290 if (IK.getFormat() == InputKind::Precompiled || 3291 IK.getLanguage() == Language::LLVM_IR) { 3292 if (Opts.ObjCAutoRefCount) 3293 GenerateArg(Args, OPT_fobjc_arc, SA); 3294 if (Opts.PICLevel != 0) 3295 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3296 if (Opts.PIE) 3297 GenerateArg(Args, OPT_pic_is_pie, SA); 3298 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3299 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3300 3301 return; 3302 } 3303 3304 OptSpecifier StdOpt; 3305 switch (Opts.LangStd) { 3306 case LangStandard::lang_opencl10: 3307 case LangStandard::lang_opencl11: 3308 case LangStandard::lang_opencl12: 3309 case LangStandard::lang_opencl20: 3310 case LangStandard::lang_opencl30: 3311 case LangStandard::lang_openclcpp10: 3312 case LangStandard::lang_openclcpp2021: 3313 StdOpt = OPT_cl_std_EQ; 3314 break; 3315 default: 3316 StdOpt = OPT_std_EQ; 3317 break; 3318 } 3319 3320 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3321 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3322 3323 if (Opts.IncludeDefaultHeader) 3324 GenerateArg(Args, OPT_finclude_default_header, SA); 3325 if (Opts.DeclareOpenCLBuiltins) 3326 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3327 3328 const LangOptions *LangOpts = &Opts; 3329 3330 #define LANG_OPTION_WITH_MARSHALLING( \ 3331 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3332 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3333 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3334 MERGER, EXTRACTOR, TABLE_INDEX) \ 3335 GENERATE_OPTION_WITH_MARSHALLING( \ 3336 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3337 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3338 #include "clang/Driver/Options.inc" 3339 #undef LANG_OPTION_WITH_MARSHALLING 3340 3341 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3342 3343 if (Opts.ObjC) { 3344 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3345 3346 if (Opts.GC == LangOptions::GCOnly) 3347 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3348 else if (Opts.GC == LangOptions::HybridGC) 3349 GenerateArg(Args, OPT_fobjc_gc, SA); 3350 else if (Opts.ObjCAutoRefCount == 1) 3351 GenerateArg(Args, OPT_fobjc_arc, SA); 3352 3353 if (Opts.ObjCWeakRuntime) 3354 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3355 3356 if (Opts.ObjCWeak) 3357 GenerateArg(Args, OPT_fobjc_weak, SA); 3358 3359 if (Opts.ObjCSubscriptingLegacyRuntime) 3360 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3361 } 3362 3363 if (Opts.GNUCVersion != 0) { 3364 unsigned Major = Opts.GNUCVersion / 100 / 100; 3365 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3366 unsigned Patch = Opts.GNUCVersion % 100; 3367 GenerateArg(Args, OPT_fgnuc_version_EQ, 3368 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3369 } 3370 3371 if (Opts.IgnoreXCOFFVisibility) 3372 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3373 3374 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3375 GenerateArg(Args, OPT_ftrapv, SA); 3376 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3377 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3378 GenerateArg(Args, OPT_fwrapv, SA); 3379 } 3380 3381 if (Opts.MSCompatibilityVersion != 0) { 3382 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3383 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3384 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3385 GenerateArg(Args, OPT_fms_compatibility_version, 3386 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3387 } 3388 3389 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3390 if (!Opts.Trigraphs) 3391 GenerateArg(Args, OPT_fno_trigraphs, SA); 3392 } else { 3393 if (Opts.Trigraphs) 3394 GenerateArg(Args, OPT_ftrigraphs, SA); 3395 } 3396 3397 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3398 GenerateArg(Args, OPT_fblocks, SA); 3399 3400 if (Opts.ConvergentFunctions && 3401 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3402 GenerateArg(Args, OPT_fconvergent_functions, SA); 3403 3404 if (Opts.NoBuiltin && !Opts.Freestanding) 3405 GenerateArg(Args, OPT_fno_builtin, SA); 3406 3407 if (!Opts.NoBuiltin) 3408 for (const auto &Func : Opts.NoBuiltinFuncs) 3409 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3410 3411 if (Opts.LongDoubleSize == 128) 3412 GenerateArg(Args, OPT_mlong_double_128, SA); 3413 else if (Opts.LongDoubleSize == 64) 3414 GenerateArg(Args, OPT_mlong_double_64, SA); 3415 else if (Opts.LongDoubleSize == 80) 3416 GenerateArg(Args, OPT_mlong_double_80, SA); 3417 3418 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3419 3420 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3421 // '-fopenmp-targets='. 3422 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3423 GenerateArg(Args, OPT_fopenmp, SA); 3424 3425 if (Opts.OpenMP != 50) 3426 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3427 3428 if (!Opts.OpenMPUseTLS) 3429 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3430 3431 if (Opts.OpenMPIsDevice) 3432 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3433 3434 if (Opts.OpenMPIRBuilder) 3435 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3436 } 3437 3438 if (Opts.OpenMPSimd) { 3439 GenerateArg(Args, OPT_fopenmp_simd, SA); 3440 3441 if (Opts.OpenMP != 50) 3442 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3443 } 3444 3445 if (Opts.OpenMPThreadSubscription) 3446 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3447 3448 if (Opts.OpenMPTeamSubscription) 3449 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3450 3451 if (Opts.OpenMPTargetDebug != 0) 3452 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3453 Twine(Opts.OpenMPTargetDebug), SA); 3454 3455 if (Opts.OpenMPCUDANumSMs != 0) 3456 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3457 Twine(Opts.OpenMPCUDANumSMs), SA); 3458 3459 if (Opts.OpenMPCUDABlocksPerSM != 0) 3460 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3461 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3462 3463 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3464 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3465 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3466 3467 if (!Opts.OMPTargetTriples.empty()) { 3468 std::string Targets; 3469 llvm::raw_string_ostream OS(Targets); 3470 llvm::interleave( 3471 Opts.OMPTargetTriples, OS, 3472 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3473 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3474 } 3475 3476 if (!Opts.OMPHostIRFile.empty()) 3477 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3478 3479 if (Opts.OpenMPCUDAMode) 3480 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3481 3482 if (Opts.OpenMPCUDAForceFullRuntime) 3483 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, 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 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3937 Opts.OpenMPCUDAForceFullRuntime = 3938 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3939 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3940 3941 // FIXME: Eliminate this dependency. 3942 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3943 OptSize = getOptimizationLevelSize(Args); 3944 Opts.Optimize = Opt != 0; 3945 Opts.OptimizeSize = OptSize != 0; 3946 3947 // This is the __NO_INLINE__ define, which just depends on things like the 3948 // optimization level and -fno-inline, not actually whether the backend has 3949 // inlining enabled. 3950 Opts.NoInlineDefine = !Opts.Optimize; 3951 if (Arg *InlineArg = Args.getLastArg( 3952 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3953 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3954 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3955 Opts.NoInlineDefine = true; 3956 3957 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3958 StringRef Val = A->getValue(); 3959 if (Val == "fast") 3960 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3961 else if (Val == "on") 3962 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3963 else if (Val == "off") 3964 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3965 else if (Val == "fast-honor-pragmas") 3966 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3967 else 3968 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3969 } 3970 3971 // Parse -fsanitize= arguments. 3972 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3973 Diags, Opts.Sanitize); 3974 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3975 std::vector<std::string> systemIgnorelists = 3976 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3977 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3978 systemIgnorelists.begin(), 3979 systemIgnorelists.end()); 3980 3981 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3982 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3983 3984 StringRef Ver = A->getValue(); 3985 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3986 unsigned Major, Minor = 0; 3987 3988 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3989 // y or y.0 (4 <= y <= current version). 3990 if (!VerParts.first.startswith("0") && 3991 !VerParts.first.getAsInteger(10, Major) && 3992 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3993 (Major == 3 ? VerParts.second.size() == 1 && 3994 !VerParts.second.getAsInteger(10, Minor) 3995 : VerParts.first.size() == Ver.size() || 3996 VerParts.second == "0")) { 3997 // Got a valid version number. 3998 if (Major == 3 && Minor <= 8) 3999 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4000 else if (Major <= 4) 4001 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4002 else if (Major <= 6) 4003 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4004 else if (Major <= 7) 4005 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4006 else if (Major <= 9) 4007 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4008 else if (Major <= 11) 4009 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4010 else if (Major <= 12) 4011 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4012 else if (Major <= 14) 4013 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4014 else if (Major <= 15) 4015 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4016 } else if (Ver != "latest") { 4017 Diags.Report(diag::err_drv_invalid_value) 4018 << A->getAsString(Args) << A->getValue(); 4019 } 4020 } 4021 4022 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4023 StringRef SignScope = A->getValue(); 4024 4025 if (SignScope.equals_insensitive("none")) 4026 Opts.setSignReturnAddressScope( 4027 LangOptions::SignReturnAddressScopeKind::None); 4028 else if (SignScope.equals_insensitive("all")) 4029 Opts.setSignReturnAddressScope( 4030 LangOptions::SignReturnAddressScopeKind::All); 4031 else if (SignScope.equals_insensitive("non-leaf")) 4032 Opts.setSignReturnAddressScope( 4033 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4034 else 4035 Diags.Report(diag::err_drv_invalid_value) 4036 << A->getAsString(Args) << SignScope; 4037 4038 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4039 StringRef SignKey = A->getValue(); 4040 if (!SignScope.empty() && !SignKey.empty()) { 4041 if (SignKey.equals_insensitive("a_key")) 4042 Opts.setSignReturnAddressKey( 4043 LangOptions::SignReturnAddressKeyKind::AKey); 4044 else if (SignKey.equals_insensitive("b_key")) 4045 Opts.setSignReturnAddressKey( 4046 LangOptions::SignReturnAddressKeyKind::BKey); 4047 else 4048 Diags.Report(diag::err_drv_invalid_value) 4049 << A->getAsString(Args) << SignKey; 4050 } 4051 } 4052 } 4053 4054 // The value can be empty, which indicates the system default should be used. 4055 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4056 if (!CXXABI.empty()) { 4057 if (!TargetCXXABI::isABI(CXXABI)) { 4058 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4059 } else { 4060 auto Kind = TargetCXXABI::getKind(CXXABI); 4061 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4062 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4063 else 4064 Opts.CXXABI = Kind; 4065 } 4066 } 4067 4068 Opts.RelativeCXXABIVTables = 4069 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4070 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4071 TargetCXXABI::usesRelativeVTables(T)); 4072 4073 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4074 auto Split = StringRef(A).split('='); 4075 Opts.MacroPrefixMap.insert( 4076 {std::string(Split.first), std::string(Split.second)}); 4077 } 4078 4079 Opts.UseTargetPathSeparator = 4080 !Args.getLastArg(OPT_fno_file_reproducible) && 4081 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4082 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4083 Args.getLastArg(OPT_ffile_reproducible)); 4084 4085 // Error if -mvscale-min is unbounded. 4086 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4087 unsigned VScaleMin; 4088 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4089 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4090 } 4091 4092 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4093 std::ifstream SeedFile(A->getValue(0)); 4094 4095 if (!SeedFile.is_open()) 4096 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4097 << A->getValue(0); 4098 4099 std::getline(SeedFile, Opts.RandstructSeed); 4100 } 4101 4102 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4103 Opts.RandstructSeed = A->getValue(0); 4104 4105 // Validate options for HLSL 4106 if (Opts.HLSL) { 4107 bool SupportedTarget = T.getArch() == llvm::Triple::dxil && 4108 T.getOS() == llvm::Triple::ShaderModel; 4109 if (!SupportedTarget) 4110 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4111 } 4112 4113 return Diags.getNumErrors() == NumErrorsBefore; 4114 } 4115 4116 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4117 switch (Action) { 4118 case frontend::ASTDeclList: 4119 case frontend::ASTDump: 4120 case frontend::ASTPrint: 4121 case frontend::ASTView: 4122 case frontend::EmitAssembly: 4123 case frontend::EmitBC: 4124 case frontend::EmitHTML: 4125 case frontend::EmitLLVM: 4126 case frontend::EmitLLVMOnly: 4127 case frontend::EmitCodeGenOnly: 4128 case frontend::EmitObj: 4129 case frontend::ExtractAPI: 4130 case frontend::FixIt: 4131 case frontend::GenerateModule: 4132 case frontend::GenerateModuleInterface: 4133 case frontend::GenerateHeaderModule: 4134 case frontend::GenerateHeaderUnit: 4135 case frontend::GeneratePCH: 4136 case frontend::GenerateInterfaceStubs: 4137 case frontend::ParseSyntaxOnly: 4138 case frontend::ModuleFileInfo: 4139 case frontend::VerifyPCH: 4140 case frontend::PluginAction: 4141 case frontend::RewriteObjC: 4142 case frontend::RewriteTest: 4143 case frontend::RunAnalysis: 4144 case frontend::TemplightDump: 4145 case frontend::MigrateSource: 4146 return false; 4147 4148 case frontend::DumpCompilerOptions: 4149 case frontend::DumpRawTokens: 4150 case frontend::DumpTokens: 4151 case frontend::InitOnly: 4152 case frontend::PrintPreamble: 4153 case frontend::PrintPreprocessedInput: 4154 case frontend::RewriteMacros: 4155 case frontend::RunPreprocessorOnly: 4156 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4157 return true; 4158 } 4159 llvm_unreachable("invalid frontend action"); 4160 } 4161 4162 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4163 SmallVectorImpl<const char *> &Args, 4164 CompilerInvocation::StringAllocator SA, 4165 const LangOptions &LangOpts, 4166 const FrontendOptions &FrontendOpts, 4167 const CodeGenOptions &CodeGenOpts) { 4168 PreprocessorOptions *PreprocessorOpts = &Opts; 4169 4170 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4171 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4172 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4173 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4174 MERGER, EXTRACTOR, TABLE_INDEX) \ 4175 GENERATE_OPTION_WITH_MARSHALLING( \ 4176 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4177 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4178 #include "clang/Driver/Options.inc" 4179 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4180 4181 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4182 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4183 4184 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4185 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4186 4187 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4188 GenerateArg(Args, OPT_preamble_bytes_EQ, 4189 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4190 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4191 SA); 4192 4193 for (const auto &M : Opts.Macros) { 4194 // Don't generate __CET__ macro definitions. They are implied by the 4195 // -fcf-protection option that is generated elsewhere. 4196 if (M.first == "__CET__=1" && !M.second && 4197 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4198 continue; 4199 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4200 !CodeGenOpts.CFProtectionBranch) 4201 continue; 4202 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4203 CodeGenOpts.CFProtectionBranch) 4204 continue; 4205 4206 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4207 } 4208 4209 for (const auto &I : Opts.Includes) { 4210 // Don't generate OpenCL includes. They are implied by other flags that are 4211 // generated elsewhere. 4212 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4213 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4214 I == "opencl-c.h")) 4215 continue; 4216 // Don't generate HLSL includes. They are implied by other flags that are 4217 // generated elsewhere. 4218 if (LangOpts.HLSL && I == "hlsl.h") 4219 continue; 4220 4221 GenerateArg(Args, OPT_include, I, SA); 4222 } 4223 4224 for (const auto &CI : Opts.ChainedIncludes) 4225 GenerateArg(Args, OPT_chain_include, CI, SA); 4226 4227 for (const auto &RF : Opts.RemappedFiles) 4228 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4229 4230 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4231 // generated elsewhere. 4232 } 4233 4234 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4235 DiagnosticsEngine &Diags, 4236 frontend::ActionKind Action, 4237 const FrontendOptions &FrontendOpts) { 4238 unsigned NumErrorsBefore = Diags.getNumErrors(); 4239 4240 PreprocessorOptions *PreprocessorOpts = &Opts; 4241 4242 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4243 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4244 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4245 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4246 MERGER, EXTRACTOR, TABLE_INDEX) \ 4247 PARSE_OPTION_WITH_MARSHALLING( \ 4248 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4249 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4250 #include "clang/Driver/Options.inc" 4251 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4252 4253 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4254 Args.hasArg(OPT_pch_through_hdrstop_use); 4255 4256 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4257 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4258 4259 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4260 StringRef Value(A->getValue()); 4261 size_t Comma = Value.find(','); 4262 unsigned Bytes = 0; 4263 unsigned EndOfLine = 0; 4264 4265 if (Comma == StringRef::npos || 4266 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4267 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4268 Diags.Report(diag::err_drv_preamble_format); 4269 else { 4270 Opts.PrecompiledPreambleBytes.first = Bytes; 4271 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4272 } 4273 } 4274 4275 // Add the __CET__ macro if a CFProtection option is set. 4276 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4277 StringRef Name = A->getValue(); 4278 if (Name == "branch") 4279 Opts.addMacroDef("__CET__=1"); 4280 else if (Name == "return") 4281 Opts.addMacroDef("__CET__=2"); 4282 else if (Name == "full") 4283 Opts.addMacroDef("__CET__=3"); 4284 } 4285 4286 // Add macros from the command line. 4287 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4288 if (A->getOption().matches(OPT_D)) 4289 Opts.addMacroDef(A->getValue()); 4290 else 4291 Opts.addMacroUndef(A->getValue()); 4292 } 4293 4294 // Add the ordered list of -includes. 4295 for (const auto *A : Args.filtered(OPT_include)) 4296 Opts.Includes.emplace_back(A->getValue()); 4297 4298 for (const auto *A : Args.filtered(OPT_chain_include)) 4299 Opts.ChainedIncludes.emplace_back(A->getValue()); 4300 4301 for (const auto *A : Args.filtered(OPT_remap_file)) { 4302 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4303 4304 if (Split.second.empty()) { 4305 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4306 continue; 4307 } 4308 4309 Opts.addRemappedFile(Split.first, Split.second); 4310 } 4311 4312 // Always avoid lexing editor placeholders when we're just running the 4313 // preprocessor as we never want to emit the 4314 // "editor placeholder in source file" error in PP only mode. 4315 if (isStrictlyPreprocessorAction(Action)) 4316 Opts.LexEditorPlaceholders = false; 4317 4318 return Diags.getNumErrors() == NumErrorsBefore; 4319 } 4320 4321 static void GeneratePreprocessorOutputArgs( 4322 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4323 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4324 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4325 4326 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4327 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4328 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4329 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4330 MERGER, EXTRACTOR, TABLE_INDEX) \ 4331 GENERATE_OPTION_WITH_MARSHALLING( \ 4332 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4333 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4334 #include "clang/Driver/Options.inc" 4335 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4336 4337 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4338 if (Generate_dM) 4339 GenerateArg(Args, OPT_dM, SA); 4340 if (!Generate_dM && Opts.ShowMacros) 4341 GenerateArg(Args, OPT_dD, SA); 4342 if (Opts.DirectivesOnly) 4343 GenerateArg(Args, OPT_fdirectives_only, SA); 4344 } 4345 4346 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4347 ArgList &Args, DiagnosticsEngine &Diags, 4348 frontend::ActionKind Action) { 4349 unsigned NumErrorsBefore = Diags.getNumErrors(); 4350 4351 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4352 4353 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4354 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4355 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4356 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4357 MERGER, EXTRACTOR, TABLE_INDEX) \ 4358 PARSE_OPTION_WITH_MARSHALLING( \ 4359 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4360 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4361 #include "clang/Driver/Options.inc" 4362 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4363 4364 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4365 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4366 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4367 4368 return Diags.getNumErrors() == NumErrorsBefore; 4369 } 4370 4371 static void GenerateTargetArgs(const TargetOptions &Opts, 4372 SmallVectorImpl<const char *> &Args, 4373 CompilerInvocation::StringAllocator SA) { 4374 const TargetOptions *TargetOpts = &Opts; 4375 #define TARGET_OPTION_WITH_MARSHALLING( \ 4376 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4377 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4378 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4379 MERGER, EXTRACTOR, TABLE_INDEX) \ 4380 GENERATE_OPTION_WITH_MARSHALLING( \ 4381 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4382 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4383 #include "clang/Driver/Options.inc" 4384 #undef TARGET_OPTION_WITH_MARSHALLING 4385 4386 if (!Opts.SDKVersion.empty()) 4387 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4388 SA); 4389 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4390 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4391 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4392 } 4393 4394 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4395 DiagnosticsEngine &Diags) { 4396 unsigned NumErrorsBefore = Diags.getNumErrors(); 4397 4398 TargetOptions *TargetOpts = &Opts; 4399 4400 #define TARGET_OPTION_WITH_MARSHALLING( \ 4401 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4402 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4403 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4404 MERGER, EXTRACTOR, TABLE_INDEX) \ 4405 PARSE_OPTION_WITH_MARSHALLING( \ 4406 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4407 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4408 #include "clang/Driver/Options.inc" 4409 #undef TARGET_OPTION_WITH_MARSHALLING 4410 4411 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4412 llvm::VersionTuple Version; 4413 if (Version.tryParse(A->getValue())) 4414 Diags.Report(diag::err_drv_invalid_value) 4415 << A->getAsString(Args) << A->getValue(); 4416 else 4417 Opts.SDKVersion = Version; 4418 } 4419 if (Arg *A = 4420 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4421 llvm::VersionTuple Version; 4422 if (Version.tryParse(A->getValue())) 4423 Diags.Report(diag::err_drv_invalid_value) 4424 << A->getAsString(Args) << A->getValue(); 4425 else 4426 Opts.DarwinTargetVariantSDKVersion = Version; 4427 } 4428 4429 return Diags.getNumErrors() == NumErrorsBefore; 4430 } 4431 4432 bool CompilerInvocation::CreateFromArgsImpl( 4433 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4434 DiagnosticsEngine &Diags, const char *Argv0) { 4435 unsigned NumErrorsBefore = Diags.getNumErrors(); 4436 4437 // Parse the arguments. 4438 const OptTable &Opts = getDriverOptTable(); 4439 const unsigned IncludedFlagsBitmask = options::CC1Option; 4440 unsigned MissingArgIndex, MissingArgCount; 4441 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4442 MissingArgCount, IncludedFlagsBitmask); 4443 LangOptions &LangOpts = *Res.getLangOpts(); 4444 4445 // Check for missing argument error. 4446 if (MissingArgCount) 4447 Diags.Report(diag::err_drv_missing_argument) 4448 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4449 4450 // Issue errors on unknown arguments. 4451 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4452 auto ArgString = A->getAsString(Args); 4453 std::string Nearest; 4454 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4455 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4456 else 4457 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4458 << ArgString << Nearest; 4459 } 4460 4461 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4462 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4463 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4464 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4465 /*DefaultDiagColor=*/false); 4466 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4467 // FIXME: We shouldn't have to pass the DashX option around here 4468 InputKind DashX = Res.getFrontendOpts().DashX; 4469 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4470 llvm::Triple T(Res.getTargetOpts().Triple); 4471 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4472 Res.getFileSystemOpts().WorkingDir); 4473 4474 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4475 Diags); 4476 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4477 LangOpts.ObjCExceptions = 1; 4478 4479 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4480 if (Warning == "misexpect" && 4481 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4482 Res.getCodeGenOpts().MisExpect = true; 4483 } 4484 } 4485 4486 if (LangOpts.CUDA) { 4487 // During CUDA device-side compilation, the aux triple is the 4488 // triple used for host compilation. 4489 if (LangOpts.CUDAIsDevice) 4490 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4491 } 4492 4493 // Set the triple of the host for OpenMP device compile. 4494 if (LangOpts.OpenMPIsDevice) 4495 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4496 4497 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4498 Res.getFrontendOpts().OutputFile, LangOpts); 4499 4500 // FIXME: Override value name discarding when asan or msan is used because the 4501 // backend passes depend on the name of the alloca in order to print out 4502 // names. 4503 Res.getCodeGenOpts().DiscardValueNames &= 4504 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4505 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4506 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4507 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4508 4509 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4510 Res.getFrontendOpts().ProgramAction, 4511 Res.getFrontendOpts()); 4512 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4513 Res.getFrontendOpts().ProgramAction); 4514 4515 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4516 Res.getFrontendOpts().ProgramAction, 4517 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4518 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4519 Res.getDependencyOutputOpts().Targets.empty()) 4520 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4521 4522 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4523 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4524 !Res.getLangOpts()->Sanitize.empty()) { 4525 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4526 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4527 } 4528 4529 // Store the command-line for using in the CodeView backend. 4530 Res.getCodeGenOpts().Argv0 = Argv0; 4531 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4532 4533 FixupInvocation(Res, Diags, Args, DashX); 4534 4535 return Diags.getNumErrors() == NumErrorsBefore; 4536 } 4537 4538 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4539 ArrayRef<const char *> CommandLineArgs, 4540 DiagnosticsEngine &Diags, 4541 const char *Argv0) { 4542 CompilerInvocation DummyInvocation; 4543 4544 return RoundTrip( 4545 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4546 DiagnosticsEngine &Diags, const char *Argv0) { 4547 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4548 }, 4549 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4550 StringAllocator SA) { 4551 Args.push_back("-cc1"); 4552 Invocation.generateCC1CommandLine(Args, SA); 4553 }, 4554 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4555 } 4556 4557 std::string CompilerInvocation::getModuleHash() const { 4558 // FIXME: Consider using SHA1 instead of MD5. 4559 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4560 4561 // Note: For QoI reasons, the things we use as a hash here should all be 4562 // dumped via the -module-info flag. 4563 4564 // Start the signature with the compiler version. 4565 HBuilder.add(getClangFullRepositoryVersion()); 4566 4567 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4568 // and getClangFullRepositoryVersion() doesn't include git revision. 4569 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4570 4571 // Extend the signature with the language options 4572 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4573 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4574 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4575 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4576 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4577 #include "clang/Basic/LangOptions.def" 4578 4579 HBuilder.addRange(LangOpts->ModuleFeatures); 4580 4581 HBuilder.add(LangOpts->ObjCRuntime); 4582 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4583 4584 // Extend the signature with the target options. 4585 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4586 TargetOpts->ABI); 4587 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4588 4589 // Extend the signature with preprocessor options. 4590 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4591 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4592 4593 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4594 for (const auto &Macro : getPreprocessorOpts().Macros) { 4595 // If we're supposed to ignore this macro for the purposes of modules, 4596 // don't put it into the hash. 4597 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4598 // Check whether we're ignoring this macro. 4599 StringRef MacroDef = Macro.first; 4600 if (hsOpts.ModulesIgnoreMacros.count( 4601 llvm::CachedHashString(MacroDef.split('=').first))) 4602 continue; 4603 } 4604 4605 HBuilder.add(Macro); 4606 } 4607 4608 // Extend the signature with the sysroot and other header search options. 4609 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4610 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4611 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4612 hsOpts.ModulesValidateDiagnosticOptions); 4613 HBuilder.add(hsOpts.ResourceDir); 4614 4615 if (hsOpts.ModulesStrictContextHash) { 4616 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4617 HBuilder.addRange(hsOpts.UserEntries); 4618 4619 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4620 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4621 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4622 HBuilder.add(diagOpts.get##Name()); 4623 #include "clang/Basic/DiagnosticOptions.def" 4624 #undef DIAGOPT 4625 #undef ENUM_DIAGOPT 4626 } 4627 4628 // Extend the signature with the user build path. 4629 HBuilder.add(hsOpts.ModuleUserBuildPath); 4630 4631 // Extend the signature with the module file extensions. 4632 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4633 ext->hashExtension(HBuilder); 4634 4635 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4636 // affects the debug info in the PCM. 4637 if (getCodeGenOpts().DebugTypeExtRefs) 4638 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4639 4640 // Extend the signature with the enabled sanitizers, if at least one is 4641 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4642 SanitizerSet SanHash = LangOpts->Sanitize; 4643 SanHash.clear(getPPTransparentSanitizers()); 4644 if (!SanHash.empty()) 4645 HBuilder.add(SanHash.Mask); 4646 4647 llvm::MD5::MD5Result Result; 4648 HBuilder.getHasher().final(Result); 4649 uint64_t Hash = Result.high() ^ Result.low(); 4650 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4651 } 4652 4653 void CompilerInvocation::generateCC1CommandLine( 4654 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4655 llvm::Triple T(TargetOpts->Triple); 4656 4657 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4658 GenerateMigratorArgs(MigratorOpts, Args, SA); 4659 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4660 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4661 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4662 GenerateTargetArgs(*TargetOpts, Args, SA); 4663 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4664 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4665 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4666 &*LangOpts); 4667 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4668 CodeGenOpts); 4669 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4670 FrontendOpts.ProgramAction); 4671 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4672 } 4673 4674 std::vector<std::string> CompilerInvocation::getCC1CommandLine() const { 4675 // Set up string allocator. 4676 llvm::BumpPtrAllocator Alloc; 4677 llvm::StringSaver Strings(Alloc); 4678 auto SA = [&Strings](const Twine &Arg) { return Strings.save(Arg).data(); }; 4679 4680 // Synthesize full command line from the CompilerInvocation, including "-cc1". 4681 SmallVector<const char *, 32> Args{"-cc1"}; 4682 generateCC1CommandLine(Args, SA); 4683 4684 // Convert arguments to the return type. 4685 return std::vector<std::string>{Args.begin(), Args.end()}; 4686 } 4687 4688 void CompilerInvocation::resetNonModularOptions() { 4689 getLangOpts()->resetNonModularOptions(); 4690 getPreprocessorOpts().resetNonModularOptions(); 4691 } 4692 4693 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4694 getLangOpts()->ImplicitModules = false; 4695 getHeaderSearchOpts().ImplicitModuleMaps = false; 4696 getHeaderSearchOpts().ModuleCachePath.clear(); 4697 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4698 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4699 // The specific values we canonicalize to for pruning don't affect behaviour, 4700 /// so use the default values so they may be dropped from the command-line. 4701 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4702 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 4703 } 4704 4705 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4706 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4707 DiagnosticsEngine &Diags) { 4708 return createVFSFromCompilerInvocation(CI, Diags, 4709 llvm::vfs::getRealFileSystem()); 4710 } 4711 4712 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4713 clang::createVFSFromCompilerInvocation( 4714 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4715 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4716 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4717 return BaseFS; 4718 4719 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4720 // earlier vfs files are on the bottom 4721 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4722 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4723 Result->getBufferForFile(File); 4724 if (!Buffer) { 4725 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4726 continue; 4727 } 4728 4729 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4730 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4731 /*DiagContext*/ nullptr, Result); 4732 if (!FS) { 4733 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4734 continue; 4735 } 4736 4737 Result = FS; 4738 } 4739 return Result; 4740 } 4741