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 <ctime> 98 #include <fstream> 99 #include <limits> 100 #include <memory> 101 #include <string> 102 #include <tuple> 103 #include <type_traits> 104 #include <utility> 105 #include <vector> 106 107 using namespace clang; 108 using namespace driver; 109 using namespace options; 110 using namespace llvm::opt; 111 112 //===----------------------------------------------------------------------===// 113 // Helpers. 114 //===----------------------------------------------------------------------===// 115 116 // Parse misexpect tolerance argument value. 117 // Valid option values are integers in the range [0, 100) 118 static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) { 119 uint32_t Val; 120 if (Arg.getAsInteger(10, Val)) 121 return llvm::createStringError(llvm::inconvertibleErrorCode(), 122 "Not an integer: %s", Arg.data()); 123 return Val; 124 } 125 126 //===----------------------------------------------------------------------===// 127 // Initialization. 128 //===----------------------------------------------------------------------===// 129 130 CompilerInvocationRefBase::CompilerInvocationRefBase() 131 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 132 DiagnosticOpts(new DiagnosticOptions()), 133 HeaderSearchOpts(new HeaderSearchOptions()), 134 PreprocessorOpts(new PreprocessorOptions()), 135 AnalyzerOpts(new AnalyzerOptions()) {} 136 137 CompilerInvocationRefBase::CompilerInvocationRefBase( 138 const CompilerInvocationRefBase &X) 139 : LangOpts(new LangOptions(*X.getLangOpts())), 140 TargetOpts(new TargetOptions(X.getTargetOpts())), 141 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 142 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 143 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 144 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 145 146 CompilerInvocationRefBase::CompilerInvocationRefBase( 147 CompilerInvocationRefBase &&X) = default; 148 149 CompilerInvocationRefBase & 150 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 151 LangOpts.swap(X.LangOpts); 152 TargetOpts.swap(X.TargetOpts); 153 DiagnosticOpts.swap(X.DiagnosticOpts); 154 HeaderSearchOpts.swap(X.HeaderSearchOpts); 155 PreprocessorOpts.swap(X.PreprocessorOpts); 156 AnalyzerOpts.swap(X.AnalyzerOpts); 157 return *this; 158 } 159 160 CompilerInvocationRefBase & 161 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 162 163 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 164 165 //===----------------------------------------------------------------------===// 166 // Normalizers 167 //===----------------------------------------------------------------------===// 168 169 #define SIMPLE_ENUM_VALUE_TABLE 170 #include "clang/Driver/Options.inc" 171 #undef SIMPLE_ENUM_VALUE_TABLE 172 173 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 174 unsigned TableIndex, 175 const ArgList &Args, 176 DiagnosticsEngine &Diags) { 177 if (Args.hasArg(Opt)) 178 return true; 179 return std::nullopt; 180 } 181 182 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 183 const ArgList &Args, 184 DiagnosticsEngine &) { 185 if (Args.hasArg(Opt)) 186 return false; 187 return std::nullopt; 188 } 189 190 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 191 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 192 /// unnecessary template instantiations and just ignore it with a variadic 193 /// argument. 194 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 195 const char *Spelling, 196 CompilerInvocation::StringAllocator, 197 Option::OptionClass, unsigned, /*T*/...) { 198 Args.push_back(Spelling); 199 } 200 201 template <typename T> static constexpr bool is_uint64_t_convertible() { 202 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 203 } 204 205 template <typename T, 206 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 207 static auto makeFlagToValueNormalizer(T Value) { 208 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 209 DiagnosticsEngine &) -> Optional<T> { 210 if (Args.hasArg(Opt)) 211 return Value; 212 return std::nullopt; 213 }; 214 } 215 216 template <typename T, 217 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 218 static auto makeFlagToValueNormalizer(T Value) { 219 return makeFlagToValueNormalizer(uint64_t(Value)); 220 } 221 222 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 223 OptSpecifier OtherOpt) { 224 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 225 const ArgList &Args, 226 DiagnosticsEngine &) -> Optional<bool> { 227 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 228 return A->getOption().matches(Opt) ? Value : OtherValue; 229 } 230 return std::nullopt; 231 }; 232 } 233 234 static auto makeBooleanOptionDenormalizer(bool Value) { 235 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 236 CompilerInvocation::StringAllocator, Option::OptionClass, 237 unsigned, bool KeyPath) { 238 if (KeyPath == Value) 239 Args.push_back(Spelling); 240 }; 241 } 242 243 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 244 const char *Spelling, 245 CompilerInvocation::StringAllocator SA, 246 Option::OptionClass OptClass, unsigned, 247 const Twine &Value) { 248 switch (OptClass) { 249 case Option::SeparateClass: 250 case Option::JoinedOrSeparateClass: 251 case Option::JoinedAndSeparateClass: 252 Args.push_back(Spelling); 253 Args.push_back(SA(Value)); 254 break; 255 case Option::JoinedClass: 256 case Option::CommaJoinedClass: 257 Args.push_back(SA(Twine(Spelling) + Value)); 258 break; 259 default: 260 llvm_unreachable("Cannot denormalize an option with option class " 261 "incompatible with string denormalization."); 262 } 263 } 264 265 template <typename T> 266 static void 267 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 268 CompilerInvocation::StringAllocator SA, 269 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 270 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 271 } 272 273 static Optional<SimpleEnumValue> 274 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 275 for (int I = 0, E = Table.Size; I != E; ++I) 276 if (Name == Table.Table[I].Name) 277 return Table.Table[I]; 278 279 return std::nullopt; 280 } 281 282 static Optional<SimpleEnumValue> 283 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 284 for (int I = 0, E = Table.Size; I != E; ++I) 285 if (Value == Table.Table[I].Value) 286 return Table.Table[I]; 287 288 return std::nullopt; 289 } 290 291 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 292 unsigned TableIndex, 293 const ArgList &Args, 294 DiagnosticsEngine &Diags) { 295 assert(TableIndex < SimpleEnumValueTablesSize); 296 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 297 298 auto *Arg = Args.getLastArg(Opt); 299 if (!Arg) 300 return std::nullopt; 301 302 StringRef ArgValue = Arg->getValue(); 303 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 304 return MaybeEnumVal->Value; 305 306 Diags.Report(diag::err_drv_invalid_value) 307 << Arg->getAsString(Args) << ArgValue; 308 return std::nullopt; 309 } 310 311 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 312 const char *Spelling, 313 CompilerInvocation::StringAllocator SA, 314 Option::OptionClass OptClass, 315 unsigned TableIndex, unsigned Value) { 316 assert(TableIndex < SimpleEnumValueTablesSize); 317 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 318 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 319 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 320 MaybeEnumVal->Name); 321 } else { 322 llvm_unreachable("The simple enum value was not correctly defined in " 323 "the tablegen option description"); 324 } 325 } 326 327 template <typename T> 328 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 329 const char *Spelling, 330 CompilerInvocation::StringAllocator SA, 331 Option::OptionClass OptClass, 332 unsigned TableIndex, T Value) { 333 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 334 static_cast<unsigned>(Value)); 335 } 336 337 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 338 const ArgList &Args, 339 DiagnosticsEngine &Diags) { 340 auto *Arg = Args.getLastArg(Opt); 341 if (!Arg) 342 return std::nullopt; 343 return std::string(Arg->getValue()); 344 } 345 346 template <typename IntTy> 347 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 348 const ArgList &Args, 349 DiagnosticsEngine &Diags) { 350 auto *Arg = Args.getLastArg(Opt); 351 if (!Arg) 352 return std::nullopt; 353 IntTy Res; 354 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 355 Diags.Report(diag::err_drv_invalid_int_value) 356 << Arg->getAsString(Args) << Arg->getValue(); 357 return std::nullopt; 358 } 359 return Res; 360 } 361 362 static Optional<std::vector<std::string>> 363 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 364 DiagnosticsEngine &) { 365 return Args.getAllArgValues(Opt); 366 } 367 368 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 369 const char *Spelling, 370 CompilerInvocation::StringAllocator SA, 371 Option::OptionClass OptClass, 372 unsigned TableIndex, 373 const std::vector<std::string> &Values) { 374 switch (OptClass) { 375 case Option::CommaJoinedClass: { 376 std::string CommaJoinedValue; 377 if (!Values.empty()) { 378 CommaJoinedValue.append(Values.front()); 379 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 380 CommaJoinedValue.append(","); 381 CommaJoinedValue.append(Value); 382 } 383 } 384 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 385 TableIndex, CommaJoinedValue); 386 break; 387 } 388 case Option::JoinedClass: 389 case Option::SeparateClass: 390 case Option::JoinedOrSeparateClass: 391 for (const std::string &Value : Values) 392 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 393 break; 394 default: 395 llvm_unreachable("Cannot denormalize an option with option class " 396 "incompatible with string vector denormalization."); 397 } 398 } 399 400 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 401 const ArgList &Args, 402 DiagnosticsEngine &Diags) { 403 auto *Arg = Args.getLastArg(Opt); 404 if (!Arg) 405 return std::nullopt; 406 return llvm::Triple::normalize(Arg->getValue()); 407 } 408 409 template <typename T, typename U> 410 static T mergeForwardValue(T KeyPath, U Value) { 411 return static_cast<T>(Value); 412 } 413 414 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 415 return KeyPath | Value; 416 } 417 418 template <typename T> static T extractForwardValue(T KeyPath) { 419 return KeyPath; 420 } 421 422 template <typename T, typename U, U Value> 423 static T extractMaskValue(T KeyPath) { 424 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 425 } 426 427 #define PARSE_OPTION_WITH_MARSHALLING( \ 428 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 429 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 430 if ((FLAGS)&options::CC1Option) { \ 431 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 432 if (IMPLIED_CHECK) \ 433 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 434 if (SHOULD_PARSE) \ 435 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 436 KEYPATH = \ 437 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 438 } 439 440 // Capture the extracted value as a lambda argument to avoid potential issues 441 // with lifetime extension of the reference. 442 #define GENERATE_OPTION_WITH_MARSHALLING( \ 443 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 444 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 445 TABLE_INDEX) \ 446 if ((FLAGS)&options::CC1Option) { \ 447 [&](const auto &Extracted) { \ 448 if (ALWAYS_EMIT || \ 449 (Extracted != \ 450 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 451 : (DEFAULT_VALUE)))) \ 452 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 453 TABLE_INDEX, Extracted); \ 454 }(EXTRACTOR(KEYPATH)); \ 455 } 456 457 static StringRef GetInputKindName(InputKind IK); 458 459 static bool FixupInvocation(CompilerInvocation &Invocation, 460 DiagnosticsEngine &Diags, const ArgList &Args, 461 InputKind IK) { 462 unsigned NumErrorsBefore = Diags.getNumErrors(); 463 464 LangOptions &LangOpts = *Invocation.getLangOpts(); 465 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 466 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 467 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 468 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 469 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 470 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 471 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 472 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 473 if (FrontendOpts.ShowStats) 474 CodeGenOpts.ClearASTBeforeBackend = false; 475 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 476 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 477 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 478 LangOpts.CurrentModule = LangOpts.ModuleName; 479 480 llvm::Triple T(TargetOpts.Triple); 481 llvm::Triple::ArchType Arch = T.getArch(); 482 483 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 484 485 if (LangOpts.getExceptionHandling() != 486 LangOptions::ExceptionHandlingKind::None && 487 T.isWindowsMSVCEnvironment()) 488 Diags.Report(diag::err_fe_invalid_exception_model) 489 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 490 491 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 492 Diags.Report(diag::warn_c_kext); 493 494 if (LangOpts.NewAlignOverride && 495 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 496 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 497 Diags.Report(diag::err_fe_invalid_alignment) 498 << A->getAsString(Args) << A->getValue(); 499 LangOpts.NewAlignOverride = 0; 500 } 501 502 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 503 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 504 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 505 << "-fsycl-is-host"; 506 507 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 508 Diags.Report(diag::err_drv_argument_not_allowed_with) 509 << "-fgnu89-inline" << GetInputKindName(IK); 510 511 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 512 Diags.Report(diag::err_drv_argument_not_allowed_with) 513 << "-hlsl-entry" << GetInputKindName(IK); 514 515 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 516 Diags.Report(diag::warn_ignored_hip_only_option) 517 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 518 519 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 520 Diags.Report(diag::warn_ignored_hip_only_option) 521 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 522 523 // When these options are used, the compiler is allowed to apply 524 // optimizations that may affect the final result. For example 525 // (x+y)+z is transformed to x+(y+z) but may not give the same 526 // final result; it's not value safe. 527 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 528 // or NaN. Final result may then differ. An error is issued when the eval 529 // method is set with one of these options. 530 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 531 if (LangOpts.ApproxFunc) 532 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 533 if (LangOpts.AllowFPReassoc) 534 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 535 if (LangOpts.AllowRecip) 536 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 537 } 538 539 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 540 // This option should be deprecated for CL > 1.0 because 541 // this option was added for compatibility with OpenCL 1.0. 542 if (Args.getLastArg(OPT_cl_strict_aliasing) && 543 (LangOpts.getOpenCLCompatibleVersion() > 100)) 544 Diags.Report(diag::warn_option_invalid_ocl_version) 545 << LangOpts.getOpenCLVersionString() 546 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 547 548 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 549 auto DefaultCC = LangOpts.getDefaultCallingConv(); 550 551 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 552 DefaultCC == LangOptions::DCC_StdCall) && 553 Arch != llvm::Triple::x86; 554 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 555 DefaultCC == LangOptions::DCC_RegCall) && 556 !T.isX86(); 557 if (emitError) 558 Diags.Report(diag::err_drv_argument_not_allowed_with) 559 << A->getSpelling() << T.getTriple(); 560 } 561 562 return Diags.getNumErrors() == NumErrorsBefore; 563 } 564 565 //===----------------------------------------------------------------------===// 566 // Deserialization (from args) 567 //===----------------------------------------------------------------------===// 568 569 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 570 DiagnosticsEngine &Diags) { 571 unsigned DefaultOpt = llvm::CodeGenOpt::None; 572 if ((IK.getLanguage() == Language::OpenCL || 573 IK.getLanguage() == Language::OpenCLCXX) && 574 !Args.hasArg(OPT_cl_opt_disable)) 575 DefaultOpt = llvm::CodeGenOpt::Default; 576 577 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 578 if (A->getOption().matches(options::OPT_O0)) 579 return llvm::CodeGenOpt::None; 580 581 if (A->getOption().matches(options::OPT_Ofast)) 582 return llvm::CodeGenOpt::Aggressive; 583 584 assert(A->getOption().matches(options::OPT_O)); 585 586 StringRef S(A->getValue()); 587 if (S == "s" || S == "z") 588 return llvm::CodeGenOpt::Default; 589 590 if (S == "g") 591 return llvm::CodeGenOpt::Less; 592 593 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 594 } 595 596 return DefaultOpt; 597 } 598 599 static unsigned getOptimizationLevelSize(ArgList &Args) { 600 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 601 if (A->getOption().matches(options::OPT_O)) { 602 switch (A->getValue()[0]) { 603 default: 604 return 0; 605 case 's': 606 return 1; 607 case 'z': 608 return 2; 609 } 610 } 611 } 612 return 0; 613 } 614 615 static void GenerateArg(SmallVectorImpl<const char *> &Args, 616 llvm::opt::OptSpecifier OptSpecifier, 617 CompilerInvocation::StringAllocator SA) { 618 Option Opt = getDriverOptTable().getOption(OptSpecifier); 619 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 620 Option::OptionClass::FlagClass, 0); 621 } 622 623 static void GenerateArg(SmallVectorImpl<const char *> &Args, 624 llvm::opt::OptSpecifier OptSpecifier, 625 const Twine &Value, 626 CompilerInvocation::StringAllocator SA) { 627 Option Opt = getDriverOptTable().getOption(OptSpecifier); 628 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 629 Opt.getKind(), 0, Value); 630 } 631 632 // Parse command line arguments into CompilerInvocation. 633 using ParseFn = 634 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 635 DiagnosticsEngine &, const char *)>; 636 637 // Generate command line arguments from CompilerInvocation. 638 using GenerateFn = llvm::function_ref<void( 639 CompilerInvocation &, SmallVectorImpl<const char *> &, 640 CompilerInvocation::StringAllocator)>; 641 642 // May perform round-trip of command line arguments. By default, the round-trip 643 // is enabled in assert builds. This can be overwritten at run-time via the 644 // "-round-trip-args" and "-no-round-trip-args" command line flags. 645 // During round-trip, the command line arguments are parsed into a dummy 646 // instance of CompilerInvocation which is used to generate the command line 647 // arguments again. The real CompilerInvocation instance is then created by 648 // parsing the generated arguments, not the original ones. 649 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 650 CompilerInvocation &RealInvocation, 651 CompilerInvocation &DummyInvocation, 652 ArrayRef<const char *> CommandLineArgs, 653 DiagnosticsEngine &Diags, const char *Argv0) { 654 #ifndef NDEBUG 655 bool DoRoundTripDefault = true; 656 #else 657 bool DoRoundTripDefault = false; 658 #endif 659 660 bool DoRoundTrip = DoRoundTripDefault; 661 for (const auto *Arg : CommandLineArgs) { 662 if (Arg == StringRef("-round-trip-args")) 663 DoRoundTrip = true; 664 if (Arg == StringRef("-no-round-trip-args")) 665 DoRoundTrip = false; 666 } 667 668 // If round-trip was not requested, simply run the parser with the real 669 // invocation diagnostics. 670 if (!DoRoundTrip) 671 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 672 673 // Serializes quoted (and potentially escaped) arguments. 674 auto SerializeArgs = [](ArrayRef<const char *> Args) { 675 std::string Buffer; 676 llvm::raw_string_ostream OS(Buffer); 677 for (const char *Arg : Args) { 678 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 679 OS << ' '; 680 } 681 OS.flush(); 682 return Buffer; 683 }; 684 685 // Setup a dummy DiagnosticsEngine. 686 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 687 DummyDiags.setClient(new TextDiagnosticBuffer()); 688 689 // Run the first parse on the original arguments with the dummy invocation and 690 // diagnostics. 691 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 692 DummyDiags.getNumWarnings() != 0) { 693 // If the first parse did not succeed, it must be user mistake (invalid 694 // command line arguments). We won't be able to generate arguments that 695 // would reproduce the same result. Let's fail again with the real 696 // invocation and diagnostics, so all side-effects of parsing are visible. 697 unsigned NumWarningsBefore = Diags.getNumWarnings(); 698 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 699 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 700 return Success; 701 702 // Parse with original options and diagnostics succeeded even though it 703 // shouldn't have. Something is off. 704 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 705 Diags.Report(diag::note_cc1_round_trip_original) 706 << SerializeArgs(CommandLineArgs); 707 return false; 708 } 709 710 // Setup string allocator. 711 llvm::BumpPtrAllocator Alloc; 712 llvm::StringSaver StringPool(Alloc); 713 auto SA = [&StringPool](const Twine &Arg) { 714 return StringPool.save(Arg).data(); 715 }; 716 717 // Generate arguments from the dummy invocation. If Generate is the 718 // inverse of Parse, the newly generated arguments must have the same 719 // semantics as the original. 720 SmallVector<const char *> GeneratedArgs1; 721 Generate(DummyInvocation, GeneratedArgs1, SA); 722 723 // Run the second parse, now on the generated arguments, and with the real 724 // invocation and diagnostics. The result is what we will end up using for the 725 // rest of compilation, so if Generate is not inverse of Parse, something down 726 // the line will break. 727 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 728 729 // The first parse on original arguments succeeded, but second parse of 730 // generated arguments failed. Something must be wrong with the generator. 731 if (!Success2) { 732 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 733 Diags.Report(diag::note_cc1_round_trip_generated) 734 << 1 << SerializeArgs(GeneratedArgs1); 735 return false; 736 } 737 738 // Generate arguments again, this time from the options we will end up using 739 // for the rest of the compilation. 740 SmallVector<const char *> GeneratedArgs2; 741 Generate(RealInvocation, GeneratedArgs2, SA); 742 743 // Compares two lists of generated arguments. 744 auto Equal = [](const ArrayRef<const char *> A, 745 const ArrayRef<const char *> B) { 746 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 747 [](const char *AElem, const char *BElem) { 748 return StringRef(AElem) == StringRef(BElem); 749 }); 750 }; 751 752 // If we generated different arguments from what we assume are two 753 // semantically equivalent CompilerInvocations, the Generate function may 754 // be non-deterministic. 755 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 756 Diags.Report(diag::err_cc1_round_trip_mismatch); 757 Diags.Report(diag::note_cc1_round_trip_generated) 758 << 1 << SerializeArgs(GeneratedArgs1); 759 Diags.Report(diag::note_cc1_round_trip_generated) 760 << 2 << SerializeArgs(GeneratedArgs2); 761 return false; 762 } 763 764 Diags.Report(diag::remark_cc1_round_trip_generated) 765 << 1 << SerializeArgs(GeneratedArgs1); 766 Diags.Report(diag::remark_cc1_round_trip_generated) 767 << 2 << SerializeArgs(GeneratedArgs2); 768 769 return Success2; 770 } 771 772 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 773 OptSpecifier GroupWithValue, 774 std::vector<std::string> &Diagnostics) { 775 for (auto *A : Args.filtered(Group)) { 776 if (A->getOption().getKind() == Option::FlagClass) { 777 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 778 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 779 Diagnostics.push_back( 780 std::string(A->getOption().getName().drop_front(1))); 781 } else if (A->getOption().matches(GroupWithValue)) { 782 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 783 // group. Add only the group name to the diagnostics. 784 Diagnostics.push_back( 785 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 786 } else { 787 // Otherwise, add its value (for OPT_W_Joined and similar). 788 Diagnostics.push_back(A->getValue()); 789 } 790 } 791 } 792 793 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 794 // it won't verify the input. 795 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 796 DiagnosticsEngine *Diags); 797 798 static void getAllNoBuiltinFuncValues(ArgList &Args, 799 std::vector<std::string> &Funcs) { 800 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 801 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 802 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 803 } 804 805 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 806 SmallVectorImpl<const char *> &Args, 807 CompilerInvocation::StringAllocator SA) { 808 const AnalyzerOptions *AnalyzerOpts = &Opts; 809 810 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 811 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 812 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 813 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 814 MERGER, EXTRACTOR, TABLE_INDEX) \ 815 GENERATE_OPTION_WITH_MARSHALLING( \ 816 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 817 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 818 #include "clang/Driver/Options.inc" 819 #undef ANALYZER_OPTION_WITH_MARSHALLING 820 821 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 822 switch (Opts.AnalysisConstraintsOpt) { 823 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 824 case NAME##Model: \ 825 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 826 break; 827 #include "clang/StaticAnalyzer/Core/Analyses.def" 828 default: 829 llvm_unreachable("Tried to generate unknown analysis constraint."); 830 } 831 } 832 833 if (Opts.AnalysisDiagOpt != PD_HTML) { 834 switch (Opts.AnalysisDiagOpt) { 835 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 836 case PD_##NAME: \ 837 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 838 break; 839 #include "clang/StaticAnalyzer/Core/Analyses.def" 840 default: 841 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 842 } 843 } 844 845 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 846 switch (Opts.AnalysisPurgeOpt) { 847 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 848 case NAME: \ 849 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 850 break; 851 #include "clang/StaticAnalyzer/Core/Analyses.def" 852 default: 853 llvm_unreachable("Tried to generate unknown analysis purge mode."); 854 } 855 } 856 857 if (Opts.InliningMode != NoRedundancy) { 858 switch (Opts.InliningMode) { 859 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 860 case NAME: \ 861 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 862 break; 863 #include "clang/StaticAnalyzer/Core/Analyses.def" 864 default: 865 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 866 } 867 } 868 869 for (const auto &CP : Opts.CheckersAndPackages) { 870 OptSpecifier Opt = 871 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 872 GenerateArg(Args, Opt, CP.first, SA); 873 } 874 875 AnalyzerOptions ConfigOpts; 876 parseAnalyzerConfigs(ConfigOpts, nullptr); 877 878 for (const auto &C : Opts.Config) { 879 // Don't generate anything that came from parseAnalyzerConfigs. It would be 880 // redundant and may not be valid on the command line. 881 auto Entry = ConfigOpts.Config.find(C.getKey()); 882 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 883 continue; 884 885 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 886 } 887 888 // Nothing to generate for FullCompilerInvocation. 889 } 890 891 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 892 DiagnosticsEngine &Diags) { 893 unsigned NumErrorsBefore = Diags.getNumErrors(); 894 895 AnalyzerOptions *AnalyzerOpts = &Opts; 896 897 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 898 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 899 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 900 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 901 MERGER, EXTRACTOR, TABLE_INDEX) \ 902 PARSE_OPTION_WITH_MARSHALLING( \ 903 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 904 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 905 #include "clang/Driver/Options.inc" 906 #undef ANALYZER_OPTION_WITH_MARSHALLING 907 908 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 909 StringRef Name = A->getValue(); 910 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 911 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 912 .Case(CMDFLAG, NAME##Model) 913 #include "clang/StaticAnalyzer/Core/Analyses.def" 914 .Default(NumConstraints); 915 if (Value == NumConstraints) { 916 Diags.Report(diag::err_drv_invalid_value) 917 << A->getAsString(Args) << Name; 918 } else { 919 #ifndef LLVM_WITH_Z3 920 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 921 Diags.Report(diag::err_analyzer_not_built_with_z3); 922 } 923 #endif // LLVM_WITH_Z3 924 Opts.AnalysisConstraintsOpt = Value; 925 } 926 } 927 928 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 929 StringRef Name = A->getValue(); 930 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 931 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 932 .Case(CMDFLAG, PD_##NAME) 933 #include "clang/StaticAnalyzer/Core/Analyses.def" 934 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 935 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 936 Diags.Report(diag::err_drv_invalid_value) 937 << A->getAsString(Args) << Name; 938 } else { 939 Opts.AnalysisDiagOpt = Value; 940 } 941 } 942 943 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 944 StringRef Name = A->getValue(); 945 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 946 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 947 .Case(CMDFLAG, NAME) 948 #include "clang/StaticAnalyzer/Core/Analyses.def" 949 .Default(NumPurgeModes); 950 if (Value == NumPurgeModes) { 951 Diags.Report(diag::err_drv_invalid_value) 952 << A->getAsString(Args) << Name; 953 } else { 954 Opts.AnalysisPurgeOpt = Value; 955 } 956 } 957 958 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 959 StringRef Name = A->getValue(); 960 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 961 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 962 .Case(CMDFLAG, NAME) 963 #include "clang/StaticAnalyzer/Core/Analyses.def" 964 .Default(NumInliningModes); 965 if (Value == NumInliningModes) { 966 Diags.Report(diag::err_drv_invalid_value) 967 << A->getAsString(Args) << Name; 968 } else { 969 Opts.InliningMode = Value; 970 } 971 } 972 973 Opts.CheckersAndPackages.clear(); 974 for (const Arg *A : 975 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 976 A->claim(); 977 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 978 // We can have a list of comma separated checker names, e.g: 979 // '-analyzer-checker=cocoa,unix' 980 StringRef CheckerAndPackageList = A->getValue(); 981 SmallVector<StringRef, 16> CheckersAndPackages; 982 CheckerAndPackageList.split(CheckersAndPackages, ","); 983 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 984 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 985 IsEnabled); 986 } 987 988 // Go through the analyzer configuration options. 989 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 990 991 // We can have a list of comma separated config names, e.g: 992 // '-analyzer-config key1=val1,key2=val2' 993 StringRef configList = A->getValue(); 994 SmallVector<StringRef, 4> configVals; 995 configList.split(configVals, ","); 996 for (const auto &configVal : configVals) { 997 StringRef key, val; 998 std::tie(key, val) = configVal.split("="); 999 if (val.empty()) { 1000 Diags.Report(SourceLocation(), 1001 diag::err_analyzer_config_no_value) << configVal; 1002 break; 1003 } 1004 if (val.contains('=')) { 1005 Diags.Report(SourceLocation(), 1006 diag::err_analyzer_config_multiple_values) 1007 << configVal; 1008 break; 1009 } 1010 1011 // TODO: Check checker options too, possibly in CheckerRegistry. 1012 // Leave unknown non-checker configs unclaimed. 1013 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1014 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1015 Diags.Report(diag::err_analyzer_config_unknown) << key; 1016 continue; 1017 } 1018 1019 A->claim(); 1020 Opts.Config[key] = std::string(val); 1021 1022 // FIXME: Remove this hunk after clang-17 released. 1023 constexpr auto SingleFAM = 1024 "consider-single-element-arrays-as-flexible-array-members"; 1025 if (key == SingleFAM) { 1026 Diags.Report(diag::warn_analyzer_deprecated_option_with_alternative) 1027 << SingleFAM << "clang-17" 1028 << "-fstrict-flex-arrays=<N>"; 1029 } 1030 } 1031 } 1032 1033 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1034 parseAnalyzerConfigs(Opts, &Diags); 1035 else 1036 parseAnalyzerConfigs(Opts, nullptr); 1037 1038 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1039 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1040 if (i != 0) 1041 os << " "; 1042 os << Args.getArgString(i); 1043 } 1044 os.flush(); 1045 1046 return Diags.getNumErrors() == NumErrorsBefore; 1047 } 1048 1049 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1050 StringRef OptionName, StringRef DefaultVal) { 1051 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1052 } 1053 1054 static void initOption(AnalyzerOptions::ConfigTable &Config, 1055 DiagnosticsEngine *Diags, 1056 StringRef &OptionField, StringRef Name, 1057 StringRef DefaultVal) { 1058 // String options may be known to invalid (e.g. if the expected string is a 1059 // file name, but the file does not exist), those will have to be checked in 1060 // parseConfigs. 1061 OptionField = getStringOption(Config, Name, DefaultVal); 1062 } 1063 1064 static void initOption(AnalyzerOptions::ConfigTable &Config, 1065 DiagnosticsEngine *Diags, 1066 bool &OptionField, StringRef Name, bool DefaultVal) { 1067 auto PossiblyInvalidVal = 1068 llvm::StringSwitch<Optional<bool>>( 1069 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1070 .Case("true", true) 1071 .Case("false", false) 1072 .Default(std::nullopt); 1073 1074 if (!PossiblyInvalidVal) { 1075 if (Diags) 1076 Diags->Report(diag::err_analyzer_config_invalid_input) 1077 << Name << "a boolean"; 1078 else 1079 OptionField = DefaultVal; 1080 } else 1081 OptionField = *PossiblyInvalidVal; 1082 } 1083 1084 static void initOption(AnalyzerOptions::ConfigTable &Config, 1085 DiagnosticsEngine *Diags, 1086 unsigned &OptionField, StringRef Name, 1087 unsigned DefaultVal) { 1088 1089 OptionField = DefaultVal; 1090 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1091 .getAsInteger(0, OptionField); 1092 if (Diags && HasFailed) 1093 Diags->Report(diag::err_analyzer_config_invalid_input) 1094 << Name << "an unsigned"; 1095 } 1096 1097 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1098 DiagnosticsEngine *Diags) { 1099 // TODO: There's no need to store the entire configtable, it'd be plenty 1100 // enough to store checker options. 1101 1102 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1103 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1104 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1105 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1106 1107 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1108 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1109 1110 #define ANALYZER_OPTION(...) 1111 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1112 SHALLOW_VAL, DEEP_VAL) \ 1113 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1114 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1115 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1116 1117 // At this point, AnalyzerOptions is configured. Let's validate some options. 1118 1119 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1120 // The current approach only validates the registered checkers which does not 1121 // contain the runtime enabled checkers and optimally we would validate both. 1122 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1123 std::vector<StringRef> Checkers = 1124 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1125 std::vector<StringRef> Packages = 1126 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1127 1128 SmallVector<StringRef, 16> CheckersAndPackages; 1129 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1130 1131 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1132 if (Diags) { 1133 bool IsChecker = CheckerOrPackage.contains('.'); 1134 bool IsValidName = IsChecker 1135 ? llvm::is_contained(Checkers, CheckerOrPackage) 1136 : llvm::is_contained(Packages, CheckerOrPackage); 1137 1138 if (!IsValidName) 1139 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1140 << CheckerOrPackage; 1141 } 1142 1143 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1144 } 1145 } 1146 1147 if (!Diags) 1148 return; 1149 1150 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1151 Diags->Report(diag::err_analyzer_config_invalid_input) 1152 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1153 1154 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1155 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1156 << "a filename"; 1157 1158 if (!AnOpts.ModelPath.empty() && 1159 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1160 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1161 << "a filename"; 1162 } 1163 1164 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1165 static void 1166 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1167 CompilerInvocation::StringAllocator SA, 1168 OptSpecifier OptEQ, StringRef Name, 1169 const CodeGenOptions::OptRemark &Remark) { 1170 if (Remark.hasValidPattern()) { 1171 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1172 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1173 GenerateArg(Args, OPT_R_Joined, Name, SA); 1174 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1175 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1176 } 1177 } 1178 1179 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1180 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1181 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1182 static CodeGenOptions::OptRemark 1183 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1184 OptSpecifier OptEQ, StringRef Name) { 1185 CodeGenOptions::OptRemark Result; 1186 1187 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1188 StringRef Pattern) { 1189 Result.Pattern = Pattern.str(); 1190 1191 std::string RegexError; 1192 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1193 if (!Result.Regex->isValid(RegexError)) { 1194 Diags.Report(diag::err_drv_optimization_remark_pattern) 1195 << RegexError << A->getAsString(Args); 1196 return false; 1197 } 1198 1199 return true; 1200 }; 1201 1202 for (Arg *A : Args) { 1203 if (A->getOption().matches(OPT_R_Joined)) { 1204 StringRef Value = A->getValue(); 1205 1206 if (Value == Name) 1207 Result.Kind = CodeGenOptions::RK_Enabled; 1208 else if (Value == "everything") 1209 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1210 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1211 Result.Kind = CodeGenOptions::RK_Disabled; 1212 else if (Value == "no-everything") 1213 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1214 else 1215 continue; 1216 1217 if (Result.Kind == CodeGenOptions::RK_Disabled || 1218 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1219 Result.Pattern = ""; 1220 Result.Regex = nullptr; 1221 } else { 1222 InitializeResultPattern(A, ".*"); 1223 } 1224 } else if (A->getOption().matches(OptEQ)) { 1225 Result.Kind = CodeGenOptions::RK_WithPattern; 1226 if (!InitializeResultPattern(A, A->getValue())) 1227 return CodeGenOptions::OptRemark(); 1228 } 1229 } 1230 1231 return Result; 1232 } 1233 1234 static bool parseDiagnosticLevelMask(StringRef FlagName, 1235 const std::vector<std::string> &Levels, 1236 DiagnosticsEngine &Diags, 1237 DiagnosticLevelMask &M) { 1238 bool Success = true; 1239 for (const auto &Level : Levels) { 1240 DiagnosticLevelMask const PM = 1241 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1242 .Case("note", DiagnosticLevelMask::Note) 1243 .Case("remark", DiagnosticLevelMask::Remark) 1244 .Case("warning", DiagnosticLevelMask::Warning) 1245 .Case("error", DiagnosticLevelMask::Error) 1246 .Default(DiagnosticLevelMask::None); 1247 if (PM == DiagnosticLevelMask::None) { 1248 Success = false; 1249 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1250 } 1251 M = M | PM; 1252 } 1253 return Success; 1254 } 1255 1256 static void parseSanitizerKinds(StringRef FlagName, 1257 const std::vector<std::string> &Sanitizers, 1258 DiagnosticsEngine &Diags, SanitizerSet &S) { 1259 for (const auto &Sanitizer : Sanitizers) { 1260 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1261 if (K == SanitizerMask()) 1262 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1263 else 1264 S.set(K, true); 1265 } 1266 } 1267 1268 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1269 SmallVector<StringRef, 4> Values; 1270 serializeSanitizerSet(S, Values); 1271 return Values; 1272 } 1273 1274 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1275 ArgList &Args, DiagnosticsEngine &D, 1276 XRayInstrSet &S) { 1277 llvm::SmallVector<StringRef, 2> BundleParts; 1278 llvm::SplitString(Bundle, BundleParts, ","); 1279 for (const auto &B : BundleParts) { 1280 auto Mask = parseXRayInstrValue(B); 1281 if (Mask == XRayInstrKind::None) 1282 if (B != "none") 1283 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1284 else 1285 S.Mask = Mask; 1286 else if (Mask == XRayInstrKind::All) 1287 S.Mask = Mask; 1288 else 1289 S.set(Mask, true); 1290 } 1291 } 1292 1293 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1294 llvm::SmallVector<StringRef, 2> BundleParts; 1295 serializeXRayInstrValue(S, BundleParts); 1296 std::string Buffer; 1297 llvm::raw_string_ostream OS(Buffer); 1298 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1299 return Buffer; 1300 } 1301 1302 // Set the profile kind using fprofile-instrument-use-path. 1303 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1304 const Twine &ProfileName, 1305 DiagnosticsEngine &Diags) { 1306 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1307 if (auto E = ReaderOrErr.takeError()) { 1308 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1309 "Error in reading profile %0: %1"); 1310 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1311 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1312 }); 1313 return; 1314 } 1315 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1316 std::move(ReaderOrErr.get()); 1317 // Currently memprof profiles are only added at the IR level. Mark the profile 1318 // type as IR in that case as well and the subsequent matching needs to detect 1319 // which is available (might be one or both). 1320 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1321 if (PGOReader->hasCSIRLevelProfile()) 1322 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1323 else 1324 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1325 } else 1326 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1327 } 1328 1329 void CompilerInvocation::GenerateCodeGenArgs( 1330 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1331 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1332 const LangOptions *LangOpts) { 1333 const CodeGenOptions &CodeGenOpts = Opts; 1334 1335 if (Opts.OptimizationLevel == 0) 1336 GenerateArg(Args, OPT_O0, SA); 1337 else 1338 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1339 1340 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1341 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1342 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1343 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1344 MERGER, EXTRACTOR, TABLE_INDEX) \ 1345 GENERATE_OPTION_WITH_MARSHALLING( \ 1346 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1347 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1348 #include "clang/Driver/Options.inc" 1349 #undef CODEGEN_OPTION_WITH_MARSHALLING 1350 1351 if (Opts.OptimizationLevel > 0) { 1352 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1353 GenerateArg(Args, OPT_finline_functions, SA); 1354 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1355 GenerateArg(Args, OPT_finline_hint_functions, SA); 1356 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1357 GenerateArg(Args, OPT_fno_inline, SA); 1358 } 1359 1360 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1361 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1362 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1363 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1364 1365 Optional<StringRef> DebugInfoVal; 1366 switch (Opts.DebugInfo) { 1367 case codegenoptions::DebugLineTablesOnly: 1368 DebugInfoVal = "line-tables-only"; 1369 break; 1370 case codegenoptions::DebugDirectivesOnly: 1371 DebugInfoVal = "line-directives-only"; 1372 break; 1373 case codegenoptions::DebugInfoConstructor: 1374 DebugInfoVal = "constructor"; 1375 break; 1376 case codegenoptions::LimitedDebugInfo: 1377 DebugInfoVal = "limited"; 1378 break; 1379 case codegenoptions::FullDebugInfo: 1380 DebugInfoVal = "standalone"; 1381 break; 1382 case codegenoptions::UnusedTypeInfo: 1383 DebugInfoVal = "unused-types"; 1384 break; 1385 case codegenoptions::NoDebugInfo: // default value 1386 DebugInfoVal = std::nullopt; 1387 break; 1388 case codegenoptions::LocTrackingOnly: // implied value 1389 DebugInfoVal = std::nullopt; 1390 break; 1391 } 1392 if (DebugInfoVal) 1393 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1394 1395 for (const auto &Prefix : Opts.DebugPrefixMap) 1396 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1397 Prefix.first + "=" + Prefix.second, SA); 1398 1399 for (const auto &Prefix : Opts.CoveragePrefixMap) 1400 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1401 Prefix.first + "=" + Prefix.second, SA); 1402 1403 if (Opts.NewStructPathTBAA) 1404 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1405 1406 if (Opts.OptimizeSize == 1) 1407 GenerateArg(Args, OPT_O, "s", SA); 1408 else if (Opts.OptimizeSize == 2) 1409 GenerateArg(Args, OPT_O, "z", SA); 1410 1411 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1412 // -ffreestanding. We'll consider that when generating them. 1413 1414 // NoBuiltinFuncs are generated by LangOptions. 1415 1416 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1417 GenerateArg(Args, OPT_funroll_loops, SA); 1418 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1419 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1420 1421 if (!Opts.BinutilsVersion.empty()) 1422 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1423 1424 if (Opts.DebugNameTable == 1425 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1426 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1427 else if (Opts.DebugNameTable == 1428 static_cast<unsigned>( 1429 llvm::DICompileUnit::DebugNameTableKind::Default)) 1430 GenerateArg(Args, OPT_gpubnames, SA); 1431 1432 auto TNK = Opts.getDebugSimpleTemplateNames(); 1433 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1434 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1435 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1436 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1437 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1438 } 1439 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1440 // it or PGOUseInstrumentor. 1441 1442 if (Opts.TimePasses) { 1443 if (Opts.TimePassesPerRun) 1444 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1445 else 1446 GenerateArg(Args, OPT_ftime_report, SA); 1447 } 1448 1449 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1450 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1451 1452 if (Opts.PrepareForThinLTO) 1453 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1454 1455 if (!Opts.ThinLTOIndexFile.empty()) 1456 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1457 1458 if (Opts.SaveTempsFilePrefix == OutputFile) 1459 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1460 1461 StringRef MemProfileBasename("memprof.profraw"); 1462 if (!Opts.MemoryProfileOutput.empty()) { 1463 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1464 GenerateArg(Args, OPT_fmemory_profile, SA); 1465 } else { 1466 size_t ArgLength = 1467 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1468 GenerateArg(Args, OPT_fmemory_profile_EQ, 1469 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1470 } 1471 } 1472 1473 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1474 GenerateArg(Args, OPT_coverage_version_EQ, 1475 StringRef(Opts.CoverageVersion, 4), SA); 1476 1477 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1478 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1479 // won't be generated.) 1480 1481 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1482 std::string InstrBundle = 1483 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1484 if (!InstrBundle.empty()) 1485 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1486 } 1487 1488 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1489 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1490 else if (Opts.CFProtectionReturn) 1491 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1492 else if (Opts.CFProtectionBranch) 1493 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1494 1495 if (Opts.IBTSeal) 1496 GenerateArg(Args, OPT_mibt_seal, SA); 1497 1498 if (Opts.FunctionReturnThunks) 1499 GenerateArg(Args, OPT_mfunction_return_EQ, "thunk-extern", SA); 1500 1501 for (const auto &F : Opts.LinkBitcodeFiles) { 1502 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1503 F.PropagateAttrs && F.Internalize; 1504 GenerateArg(Args, 1505 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1506 F.Filename, SA); 1507 } 1508 1509 GenerateArg( 1510 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1511 1512 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1513 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1514 1515 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1516 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1517 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1518 SA); 1519 1520 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1521 OptSpecifier Opt = 1522 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1523 GenerateArg(Args, Opt, SA); 1524 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1525 OptSpecifier Opt = 1526 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1527 GenerateArg(Args, Opt, SA); 1528 } 1529 1530 if (Opts.EnableAIXExtendedAltivecABI) 1531 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1532 1533 if (!Opts.OptRecordPasses.empty()) 1534 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1535 1536 if (!Opts.OptRecordFormat.empty()) 1537 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1538 1539 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1540 Opts.OptimizationRemark); 1541 1542 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1543 Opts.OptimizationRemarkMissed); 1544 1545 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1546 Opts.OptimizationRemarkAnalysis); 1547 1548 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1549 Opts.DiagnosticsHotnessThreshold 1550 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1551 : "auto", 1552 SA); 1553 1554 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1555 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1556 1557 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1558 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1559 1560 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1561 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1562 1563 if (!Opts.EmitVersionIdentMetadata) 1564 GenerateArg(Args, OPT_Qn, SA); 1565 1566 switch (Opts.FiniteLoops) { 1567 case CodeGenOptions::FiniteLoopsKind::Language: 1568 break; 1569 case CodeGenOptions::FiniteLoopsKind::Always: 1570 GenerateArg(Args, OPT_ffinite_loops, SA); 1571 break; 1572 case CodeGenOptions::FiniteLoopsKind::Never: 1573 GenerateArg(Args, OPT_fno_finite_loops, SA); 1574 break; 1575 } 1576 } 1577 1578 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1579 InputKind IK, 1580 DiagnosticsEngine &Diags, 1581 const llvm::Triple &T, 1582 const std::string &OutputFile, 1583 const LangOptions &LangOptsRef) { 1584 unsigned NumErrorsBefore = Diags.getNumErrors(); 1585 1586 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1587 // TODO: This could be done in Driver 1588 unsigned MaxOptLevel = 3; 1589 if (OptimizationLevel > MaxOptLevel) { 1590 // If the optimization level is not supported, fall back on the default 1591 // optimization 1592 Diags.Report(diag::warn_drv_optimization_value) 1593 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1594 OptimizationLevel = MaxOptLevel; 1595 } 1596 Opts.OptimizationLevel = OptimizationLevel; 1597 1598 // The key paths of codegen options defined in Options.td start with 1599 // "CodeGenOpts.". Let's provide the expected variable name and type. 1600 CodeGenOptions &CodeGenOpts = Opts; 1601 // Some codegen options depend on language options. Let's provide the expected 1602 // variable name and type. 1603 const LangOptions *LangOpts = &LangOptsRef; 1604 1605 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1606 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1607 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1608 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1609 MERGER, EXTRACTOR, TABLE_INDEX) \ 1610 PARSE_OPTION_WITH_MARSHALLING( \ 1611 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1612 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1613 #include "clang/Driver/Options.inc" 1614 #undef CODEGEN_OPTION_WITH_MARSHALLING 1615 1616 // At O0 we want to fully disable inlining outside of cases marked with 1617 // 'alwaysinline' that are required for correctness. 1618 if (Opts.OptimizationLevel == 0) { 1619 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1620 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1621 options::OPT_finline_hint_functions, 1622 options::OPT_fno_inline_functions, 1623 options::OPT_fno_inline)) { 1624 // Explicit inlining flags can disable some or all inlining even at 1625 // optimization levels above zero. 1626 if (A->getOption().matches(options::OPT_finline_functions)) 1627 Opts.setInlining(CodeGenOptions::NormalInlining); 1628 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1629 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1630 else 1631 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1632 } else { 1633 Opts.setInlining(CodeGenOptions::NormalInlining); 1634 } 1635 1636 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1637 // -fdirect-access-external-data. 1638 Opts.DirectAccessExternalData = 1639 Args.hasArg(OPT_fdirect_access_external_data) || 1640 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1641 LangOpts->PICLevel == 0); 1642 1643 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1644 unsigned Val = 1645 llvm::StringSwitch<unsigned>(A->getValue()) 1646 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1647 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1648 .Case("constructor", codegenoptions::DebugInfoConstructor) 1649 .Case("limited", codegenoptions::LimitedDebugInfo) 1650 .Case("standalone", codegenoptions::FullDebugInfo) 1651 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1652 .Default(~0U); 1653 if (Val == ~0U) 1654 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1655 << A->getValue(); 1656 else 1657 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1658 } 1659 1660 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1661 // constructor homing, and vice versa for -fno-use-ctor-homing. 1662 if (const Arg *A = 1663 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1664 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1665 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1666 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1667 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1668 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1669 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1670 } 1671 1672 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1673 auto Split = StringRef(Arg).split('='); 1674 Opts.DebugPrefixMap.insert( 1675 {std::string(Split.first), std::string(Split.second)}); 1676 } 1677 1678 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1679 auto Split = StringRef(Arg).split('='); 1680 Opts.CoveragePrefixMap.insert( 1681 {std::string(Split.first), std::string(Split.second)}); 1682 } 1683 1684 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1685 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1686 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1687 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1688 1689 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1690 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1691 Opts.EmitCallSiteInfo = true; 1692 1693 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1694 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1695 << Opts.DIBugsReportFilePath; 1696 Opts.DIBugsReportFilePath = ""; 1697 } 1698 1699 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1700 Args.hasArg(OPT_new_struct_path_tbaa); 1701 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1702 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1703 if (Opts.SimplifyLibCalls) 1704 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1705 Opts.UnrollLoops = 1706 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1707 (Opts.OptimizationLevel > 1)); 1708 Opts.BinutilsVersion = 1709 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1710 1711 Opts.DebugNameTable = static_cast<unsigned>( 1712 Args.hasArg(OPT_ggnu_pubnames) 1713 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1714 : Args.hasArg(OPT_gpubnames) 1715 ? llvm::DICompileUnit::DebugNameTableKind::Default 1716 : llvm::DICompileUnit::DebugNameTableKind::None); 1717 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1718 StringRef Value = A->getValue(); 1719 if (Value != "simple" && Value != "mangled") 1720 Diags.Report(diag::err_drv_unsupported_option_argument) 1721 << A->getSpelling() << A->getValue(); 1722 Opts.setDebugSimpleTemplateNames( 1723 StringRef(A->getValue()) == "simple" 1724 ? codegenoptions::DebugTemplateNamesKind::Simple 1725 : codegenoptions::DebugTemplateNamesKind::Mangled); 1726 } 1727 1728 if (!Opts.ProfileInstrumentUsePath.empty()) 1729 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath, Diags); 1730 1731 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1732 Opts.TimePasses = true; 1733 1734 // -ftime-report= is only for new pass manager. 1735 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1736 StringRef Val = A->getValue(); 1737 if (Val == "per-pass") 1738 Opts.TimePassesPerRun = false; 1739 else if (Val == "per-pass-run") 1740 Opts.TimePassesPerRun = true; 1741 else 1742 Diags.Report(diag::err_drv_invalid_value) 1743 << A->getAsString(Args) << A->getValue(); 1744 } 1745 } 1746 1747 Opts.PrepareForLTO = false; 1748 Opts.PrepareForThinLTO = false; 1749 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1750 Opts.PrepareForLTO = true; 1751 StringRef S = A->getValue(); 1752 if (S == "thin") 1753 Opts.PrepareForThinLTO = true; 1754 else if (S != "full") 1755 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1756 } 1757 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1758 if (IK.getLanguage() != Language::LLVM_IR) 1759 Diags.Report(diag::err_drv_argument_only_allowed_with) 1760 << A->getAsString(Args) << "-x ir"; 1761 Opts.ThinLTOIndexFile = 1762 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1763 } 1764 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1765 Opts.SaveTempsFilePrefix = 1766 llvm::StringSwitch<std::string>(A->getValue()) 1767 .Case("obj", OutputFile) 1768 .Default(llvm::sys::path::filename(OutputFile).str()); 1769 1770 // The memory profile runtime appends the pid to make this name more unique. 1771 const char *MemProfileBasename = "memprof.profraw"; 1772 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1773 SmallString<128> Path( 1774 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1775 llvm::sys::path::append(Path, MemProfileBasename); 1776 Opts.MemoryProfileOutput = std::string(Path); 1777 } else if (Args.hasArg(OPT_fmemory_profile)) 1778 Opts.MemoryProfileOutput = MemProfileBasename; 1779 1780 memcpy(Opts.CoverageVersion, "408*", 4); 1781 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1782 if (Args.hasArg(OPT_coverage_version_EQ)) { 1783 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1784 if (CoverageVersion.size() != 4) { 1785 Diags.Report(diag::err_drv_invalid_value) 1786 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1787 << CoverageVersion; 1788 } else { 1789 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1790 } 1791 } 1792 } 1793 // FIXME: For backend options that are not yet recorded as function 1794 // attributes in the IR, keep track of them so we can embed them in a 1795 // separate data section and use them when building the bitcode. 1796 for (const auto &A : Args) { 1797 // Do not encode output and input. 1798 if (A->getOption().getID() == options::OPT_o || 1799 A->getOption().getID() == options::OPT_INPUT || 1800 A->getOption().getID() == options::OPT_x || 1801 A->getOption().getID() == options::OPT_fembed_bitcode || 1802 A->getOption().matches(options::OPT_W_Group)) 1803 continue; 1804 ArgStringList ASL; 1805 A->render(Args, ASL); 1806 for (const auto &arg : ASL) { 1807 StringRef ArgStr(arg); 1808 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1809 // using \00 to separate each commandline options. 1810 Opts.CmdArgs.push_back('\0'); 1811 } 1812 } 1813 1814 auto XRayInstrBundles = 1815 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1816 if (XRayInstrBundles.empty()) 1817 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1818 else 1819 for (const auto &A : XRayInstrBundles) 1820 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1821 Diags, Opts.XRayInstrumentationBundle); 1822 1823 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1824 StringRef Name = A->getValue(); 1825 if (Name == "full") { 1826 Opts.CFProtectionReturn = 1; 1827 Opts.CFProtectionBranch = 1; 1828 } else if (Name == "return") 1829 Opts.CFProtectionReturn = 1; 1830 else if (Name == "branch") 1831 Opts.CFProtectionBranch = 1; 1832 else if (Name != "none") 1833 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1834 } 1835 1836 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1837 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1838 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1839 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1840 .Default(llvm::FunctionReturnThunksKind::Invalid); 1841 // SystemZ might want to add support for "expolines." 1842 if (!T.isX86()) 1843 Diags.Report(diag::err_drv_argument_not_allowed_with) 1844 << A->getSpelling() << T.getTriple(); 1845 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1846 Diags.Report(diag::err_drv_invalid_value) 1847 << A->getAsString(Args) << A->getValue(); 1848 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1849 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1850 Diags.Report(diag::err_drv_argument_not_allowed_with) 1851 << A->getAsString(Args) 1852 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1853 else 1854 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1855 } 1856 1857 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1858 Opts.IBTSeal = 1; 1859 1860 for (auto *A : 1861 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1862 CodeGenOptions::BitcodeFileToLink F; 1863 F.Filename = A->getValue(); 1864 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1865 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1866 // When linking CUDA bitcode, propagate function attributes so that 1867 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1868 F.PropagateAttrs = true; 1869 F.Internalize = true; 1870 } 1871 Opts.LinkBitcodeFiles.push_back(F); 1872 } 1873 1874 if (!Args.getLastArg(OPT_femulated_tls) && 1875 !Args.getLastArg(OPT_fno_emulated_tls)) { 1876 Opts.EmulatedTLS = T.hasDefaultEmulatedTLS(); 1877 } 1878 1879 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1880 if (T.isOSAIX()) { 1881 StringRef Name = A->getValue(); 1882 if (Name != "global-dynamic") 1883 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1884 } 1885 } 1886 1887 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1888 StringRef Val = A->getValue(); 1889 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1890 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1891 if (!Opts.FPDenormalMode.isValid()) 1892 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1893 } 1894 1895 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1896 StringRef Val = A->getValue(); 1897 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1898 if (!Opts.FP32DenormalMode.isValid()) 1899 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1900 } 1901 1902 // X86_32 has -fppc-struct-return and -freg-struct-return. 1903 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1904 if (Arg *A = 1905 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1906 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1907 // TODO: We might want to consider enabling these options on AIX in the 1908 // future. 1909 if (T.isOSAIX()) 1910 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1911 << A->getSpelling() << T.str(); 1912 1913 const Option &O = A->getOption(); 1914 if (O.matches(OPT_fpcc_struct_return) || 1915 O.matches(OPT_maix_struct_return)) { 1916 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1917 } else { 1918 assert(O.matches(OPT_freg_struct_return) || 1919 O.matches(OPT_msvr4_struct_return)); 1920 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1921 } 1922 } 1923 1924 if (Arg *A = 1925 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1926 if (!T.isOSAIX()) 1927 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1928 << A->getSpelling() << T.str(); 1929 1930 const Option &O = A->getOption(); 1931 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1932 } 1933 1934 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1935 if (!T.isOSAIX() || T.isPPC32()) 1936 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1937 << A->getSpelling() << T.str(); 1938 } 1939 1940 bool NeedLocTracking = false; 1941 1942 if (!Opts.OptRecordFile.empty()) 1943 NeedLocTracking = true; 1944 1945 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1946 Opts.OptRecordPasses = A->getValue(); 1947 NeedLocTracking = true; 1948 } 1949 1950 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1951 Opts.OptRecordFormat = A->getValue(); 1952 NeedLocTracking = true; 1953 } 1954 1955 Opts.OptimizationRemark = 1956 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1957 1958 Opts.OptimizationRemarkMissed = 1959 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1960 1961 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1962 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1963 1964 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1965 Opts.OptimizationRemarkMissed.hasValidPattern() || 1966 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1967 1968 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1969 bool UsingProfile = UsingSampleProfile || 1970 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1971 1972 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1973 // An IR file will contain PGO as metadata 1974 IK.getLanguage() != Language::LLVM_IR) 1975 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1976 << "-fdiagnostics-show-hotness"; 1977 1978 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1979 if (auto *arg = 1980 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1981 auto ResultOrErr = 1982 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1983 1984 if (!ResultOrErr) { 1985 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1986 << "-fdiagnostics-hotness-threshold="; 1987 } else { 1988 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1989 if ((!Opts.DiagnosticsHotnessThreshold || 1990 Opts.DiagnosticsHotnessThreshold.value() > 0) && 1991 !UsingProfile) 1992 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1993 << "-fdiagnostics-hotness-threshold="; 1994 } 1995 } 1996 1997 if (auto *arg = 1998 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1999 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2000 2001 if (!ResultOrErr) { 2002 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2003 << "-fdiagnostics-misexpect-tolerance="; 2004 } else { 2005 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2006 if ((!Opts.DiagnosticsMisExpectTolerance || 2007 Opts.DiagnosticsMisExpectTolerance.value() > 0) && 2008 !UsingProfile) 2009 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2010 << "-fdiagnostics-misexpect-tolerance="; 2011 } 2012 } 2013 2014 // If the user requested to use a sample profile for PGO, then the 2015 // backend will need to track source location information so the profile 2016 // can be incorporated into the IR. 2017 if (UsingSampleProfile) 2018 NeedLocTracking = true; 2019 2020 if (!Opts.StackUsageOutput.empty()) 2021 NeedLocTracking = true; 2022 2023 // If the user requested a flag that requires source locations available in 2024 // the backend, make sure that the backend tracks source location information. 2025 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2026 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2027 2028 // Parse -fsanitize-recover= arguments. 2029 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2030 parseSanitizerKinds("-fsanitize-recover=", 2031 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2032 Opts.SanitizeRecover); 2033 parseSanitizerKinds("-fsanitize-trap=", 2034 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2035 Opts.SanitizeTrap); 2036 2037 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2038 2039 if (Args.hasArg(options::OPT_ffinite_loops)) 2040 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2041 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2042 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2043 2044 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2045 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2046 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2047 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2048 2049 return Diags.getNumErrors() == NumErrorsBefore; 2050 } 2051 2052 static void 2053 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2054 SmallVectorImpl<const char *> &Args, 2055 CompilerInvocation::StringAllocator SA) { 2056 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2057 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2058 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2059 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2060 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2061 MERGER, EXTRACTOR, TABLE_INDEX) \ 2062 GENERATE_OPTION_WITH_MARSHALLING( \ 2063 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2064 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2065 #include "clang/Driver/Options.inc" 2066 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2067 2068 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2069 GenerateArg(Args, OPT_show_includes, SA); 2070 2071 for (const auto &Dep : Opts.ExtraDeps) { 2072 switch (Dep.second) { 2073 case EDK_SanitizeIgnorelist: 2074 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2075 continue; 2076 case EDK_ModuleFile: 2077 // Module file arguments are generated from FrontendOptions and 2078 // HeaderSearchOptions. 2079 continue; 2080 case EDK_ProfileList: 2081 // Profile list arguments are generated from LanguageOptions via the 2082 // marshalling infrastructure. 2083 continue; 2084 case EDK_DepFileEntry: 2085 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2086 break; 2087 } 2088 } 2089 } 2090 2091 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2092 ArgList &Args, DiagnosticsEngine &Diags, 2093 frontend::ActionKind Action, 2094 bool ShowLineMarkers) { 2095 unsigned NumErrorsBefore = Diags.getNumErrors(); 2096 2097 DependencyOutputOptions &DependencyOutputOpts = Opts; 2098 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2099 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2100 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2101 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2102 MERGER, EXTRACTOR, TABLE_INDEX) \ 2103 PARSE_OPTION_WITH_MARSHALLING( \ 2104 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2105 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2106 #include "clang/Driver/Options.inc" 2107 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2108 2109 if (Args.hasArg(OPT_show_includes)) { 2110 // Writing both /showIncludes and preprocessor output to stdout 2111 // would produce interleaved output, so use stderr for /showIncludes. 2112 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2113 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2114 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2115 else 2116 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2117 } else { 2118 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2119 } 2120 2121 // Add sanitizer ignorelists as extra dependencies. 2122 // They won't be discovered by the regular preprocessor, so 2123 // we let make / ninja to know about this implicit dependency. 2124 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2125 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2126 StringRef Val = A->getValue(); 2127 if (!Val.contains('=')) 2128 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2129 } 2130 if (Opts.IncludeSystemHeaders) { 2131 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2132 StringRef Val = A->getValue(); 2133 if (!Val.contains('=')) 2134 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2135 } 2136 } 2137 } 2138 2139 // -fprofile-list= dependencies. 2140 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2141 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2142 2143 // Propagate the extra dependencies. 2144 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2145 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2146 2147 // Only the -fmodule-file=<file> form. 2148 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2149 StringRef Val = A->getValue(); 2150 if (!Val.contains('=')) 2151 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2152 } 2153 2154 // Check for invalid combinations of header-include-format 2155 // and header-include-filtering. 2156 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2157 Opts.HeaderIncludeFiltering != HIFIL_None) || 2158 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2159 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2160 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2161 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2162 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2163 2164 return Diags.getNumErrors() == NumErrorsBefore; 2165 } 2166 2167 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2168 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2169 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2170 // Support both clang's -f[no-]color-diagnostics and gcc's 2171 // -f[no-]diagnostics-colors[=never|always|auto]. 2172 enum { 2173 Colors_On, 2174 Colors_Off, 2175 Colors_Auto 2176 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2177 for (auto *A : Args) { 2178 const Option &O = A->getOption(); 2179 if (O.matches(options::OPT_fcolor_diagnostics)) { 2180 ShowColors = Colors_On; 2181 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2182 ShowColors = Colors_Off; 2183 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2184 StringRef Value(A->getValue()); 2185 if (Value == "always") 2186 ShowColors = Colors_On; 2187 else if (Value == "never") 2188 ShowColors = Colors_Off; 2189 else if (Value == "auto") 2190 ShowColors = Colors_Auto; 2191 } 2192 } 2193 return ShowColors == Colors_On || 2194 (ShowColors == Colors_Auto && 2195 llvm::sys::Process::StandardErrHasColors()); 2196 } 2197 2198 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2199 DiagnosticsEngine &Diags) { 2200 bool Success = true; 2201 for (const auto &Prefix : VerifyPrefixes) { 2202 // Every prefix must start with a letter and contain only alphanumeric 2203 // characters, hyphens, and underscores. 2204 auto BadChar = llvm::find_if(Prefix, [](char C) { 2205 return !isAlphanumeric(C) && C != '-' && C != '_'; 2206 }); 2207 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2208 Success = false; 2209 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2210 Diags.Report(diag::note_drv_verify_prefix_spelling); 2211 } 2212 } 2213 return Success; 2214 } 2215 2216 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2217 SmallVectorImpl<const char *> &Args, 2218 CompilerInvocation::StringAllocator SA) { 2219 const FileSystemOptions &FileSystemOpts = Opts; 2220 2221 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2222 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2223 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2224 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2225 MERGER, EXTRACTOR, TABLE_INDEX) \ 2226 GENERATE_OPTION_WITH_MARSHALLING( \ 2227 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2228 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2229 #include "clang/Driver/Options.inc" 2230 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2231 } 2232 2233 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2234 DiagnosticsEngine &Diags) { 2235 unsigned NumErrorsBefore = Diags.getNumErrors(); 2236 2237 FileSystemOptions &FileSystemOpts = Opts; 2238 2239 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2240 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2241 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2242 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2243 MERGER, EXTRACTOR, TABLE_INDEX) \ 2244 PARSE_OPTION_WITH_MARSHALLING( \ 2245 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2246 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2247 #include "clang/Driver/Options.inc" 2248 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2249 2250 return Diags.getNumErrors() == NumErrorsBefore; 2251 } 2252 2253 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2254 SmallVectorImpl<const char *> &Args, 2255 CompilerInvocation::StringAllocator SA) { 2256 const MigratorOptions &MigratorOpts = Opts; 2257 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2258 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2259 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2260 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2261 MERGER, EXTRACTOR, TABLE_INDEX) \ 2262 GENERATE_OPTION_WITH_MARSHALLING( \ 2263 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2264 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2265 #include "clang/Driver/Options.inc" 2266 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2267 } 2268 2269 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2270 DiagnosticsEngine &Diags) { 2271 unsigned NumErrorsBefore = Diags.getNumErrors(); 2272 2273 MigratorOptions &MigratorOpts = Opts; 2274 2275 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2276 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2277 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2278 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2279 MERGER, EXTRACTOR, TABLE_INDEX) \ 2280 PARSE_OPTION_WITH_MARSHALLING( \ 2281 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2282 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2283 #include "clang/Driver/Options.inc" 2284 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2285 2286 return Diags.getNumErrors() == NumErrorsBefore; 2287 } 2288 2289 void CompilerInvocation::GenerateDiagnosticArgs( 2290 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2291 StringAllocator SA, bool DefaultDiagColor) { 2292 const DiagnosticOptions *DiagnosticOpts = &Opts; 2293 #define DIAG_OPTION_WITH_MARSHALLING( \ 2294 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2295 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2296 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2297 MERGER, EXTRACTOR, TABLE_INDEX) \ 2298 GENERATE_OPTION_WITH_MARSHALLING( \ 2299 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2300 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2301 #include "clang/Driver/Options.inc" 2302 #undef DIAG_OPTION_WITH_MARSHALLING 2303 2304 if (!Opts.DiagnosticSerializationFile.empty()) 2305 GenerateArg(Args, OPT_diagnostic_serialized_file, 2306 Opts.DiagnosticSerializationFile, SA); 2307 2308 if (Opts.ShowColors) 2309 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2310 2311 if (Opts.VerifyDiagnostics && 2312 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2313 GenerateArg(Args, OPT_verify, SA); 2314 2315 for (const auto &Prefix : Opts.VerifyPrefixes) 2316 if (Prefix != "expected") 2317 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2318 2319 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2320 if (VIU == DiagnosticLevelMask::None) { 2321 // This is the default, don't generate anything. 2322 } else if (VIU == DiagnosticLevelMask::All) { 2323 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2324 } else { 2325 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2326 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2327 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2328 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2329 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2330 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2331 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2332 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2333 } 2334 2335 for (const auto &Warning : Opts.Warnings) { 2336 // This option is automatically generated from UndefPrefixes. 2337 if (Warning == "undef-prefix") 2338 continue; 2339 Args.push_back(SA(StringRef("-W") + Warning)); 2340 } 2341 2342 for (const auto &Remark : Opts.Remarks) { 2343 // These arguments are generated from OptimizationRemark fields of 2344 // CodeGenOptions. 2345 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2346 "pass-analysis", "no-pass-analysis", 2347 "pass-missed", "no-pass-missed"}; 2348 if (llvm::is_contained(IgnoredRemarks, Remark)) 2349 continue; 2350 2351 Args.push_back(SA(StringRef("-R") + Remark)); 2352 } 2353 } 2354 2355 std::unique_ptr<DiagnosticOptions> 2356 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2357 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2358 unsigned MissingArgIndex, MissingArgCount; 2359 InputArgList Args = getDriverOptTable().ParseArgs( 2360 Argv.slice(1), MissingArgIndex, MissingArgCount); 2361 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2362 // Any errors that would be diagnosed here will also be diagnosed later, 2363 // when the DiagnosticsEngine actually exists. 2364 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2365 return DiagOpts; 2366 } 2367 2368 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2369 DiagnosticsEngine *Diags, 2370 bool DefaultDiagColor) { 2371 Optional<DiagnosticsEngine> IgnoringDiags; 2372 if (!Diags) { 2373 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2374 new IgnoringDiagConsumer()); 2375 Diags = &*IgnoringDiags; 2376 } 2377 2378 unsigned NumErrorsBefore = Diags->getNumErrors(); 2379 2380 // The key paths of diagnostic options defined in Options.td start with 2381 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2382 DiagnosticOptions *DiagnosticOpts = &Opts; 2383 2384 #define DIAG_OPTION_WITH_MARSHALLING( \ 2385 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2386 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2387 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2388 MERGER, EXTRACTOR, TABLE_INDEX) \ 2389 PARSE_OPTION_WITH_MARSHALLING( \ 2390 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2391 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2392 #include "clang/Driver/Options.inc" 2393 #undef DIAG_OPTION_WITH_MARSHALLING 2394 2395 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2396 2397 if (Arg *A = 2398 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2399 Opts.DiagnosticSerializationFile = A->getValue(); 2400 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2401 2402 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2403 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2404 if (Args.hasArg(OPT_verify)) 2405 Opts.VerifyPrefixes.push_back("expected"); 2406 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2407 // then sort it to prepare for fast lookup using std::binary_search. 2408 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2409 Opts.VerifyDiagnostics = false; 2410 else 2411 llvm::sort(Opts.VerifyPrefixes); 2412 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2413 parseDiagnosticLevelMask( 2414 "-verify-ignore-unexpected=", 2415 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2416 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2417 DiagMask = DiagnosticLevelMask::All; 2418 Opts.setVerifyIgnoreUnexpected(DiagMask); 2419 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2420 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2421 Diags->Report(diag::warn_ignoring_ftabstop_value) 2422 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2423 } 2424 2425 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2426 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2427 2428 return Diags->getNumErrors() == NumErrorsBefore; 2429 } 2430 2431 /// Parse the argument to the -ftest-module-file-extension 2432 /// command-line argument. 2433 /// 2434 /// \returns true on error, false on success. 2435 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2436 std::string &BlockName, 2437 unsigned &MajorVersion, 2438 unsigned &MinorVersion, 2439 bool &Hashed, 2440 std::string &UserInfo) { 2441 SmallVector<StringRef, 5> Args; 2442 Arg.split(Args, ':', 5); 2443 if (Args.size() < 5) 2444 return true; 2445 2446 BlockName = std::string(Args[0]); 2447 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2448 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2449 if (Args[3].getAsInteger(2, Hashed)) return true; 2450 if (Args.size() > 4) 2451 UserInfo = std::string(Args[4]); 2452 return false; 2453 } 2454 2455 /// Return a table that associates command line option specifiers with the 2456 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2457 /// intentionally missing, as this case is handled separately from other 2458 /// frontend options. 2459 static const auto &getFrontendActionTable() { 2460 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2461 {frontend::ASTDeclList, OPT_ast_list}, 2462 2463 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2464 {frontend::ASTDump, OPT_ast_dump_all}, 2465 {frontend::ASTDump, OPT_ast_dump_EQ}, 2466 {frontend::ASTDump, OPT_ast_dump}, 2467 {frontend::ASTDump, OPT_ast_dump_lookups}, 2468 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2469 2470 {frontend::ASTPrint, OPT_ast_print}, 2471 {frontend::ASTView, OPT_ast_view}, 2472 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2473 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2474 {frontend::DumpTokens, OPT_dump_tokens}, 2475 {frontend::EmitAssembly, OPT_S}, 2476 {frontend::EmitBC, OPT_emit_llvm_bc}, 2477 {frontend::EmitHTML, OPT_emit_html}, 2478 {frontend::EmitLLVM, OPT_emit_llvm}, 2479 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2480 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2481 {frontend::EmitObj, OPT_emit_obj}, 2482 {frontend::ExtractAPI, OPT_extract_api}, 2483 2484 {frontend::FixIt, OPT_fixit_EQ}, 2485 {frontend::FixIt, OPT_fixit}, 2486 2487 {frontend::GenerateModule, OPT_emit_module}, 2488 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2489 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2490 {frontend::GeneratePCH, OPT_emit_pch}, 2491 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2492 {frontend::InitOnly, OPT_init_only}, 2493 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2494 {frontend::ModuleFileInfo, OPT_module_file_info}, 2495 {frontend::VerifyPCH, OPT_verify_pch}, 2496 {frontend::PrintPreamble, OPT_print_preamble}, 2497 {frontend::PrintPreprocessedInput, OPT_E}, 2498 {frontend::TemplightDump, OPT_templight_dump}, 2499 {frontend::RewriteMacros, OPT_rewrite_macros}, 2500 {frontend::RewriteObjC, OPT_rewrite_objc}, 2501 {frontend::RewriteTest, OPT_rewrite_test}, 2502 {frontend::RunAnalysis, OPT_analyze}, 2503 {frontend::MigrateSource, OPT_migrate}, 2504 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2505 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2506 OPT_print_dependency_directives_minimized_source}, 2507 }; 2508 2509 return Table; 2510 } 2511 2512 /// Maps command line option to frontend action. 2513 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2514 for (const auto &ActionOpt : getFrontendActionTable()) 2515 if (ActionOpt.second == Opt.getID()) 2516 return ActionOpt.first; 2517 2518 return std::nullopt; 2519 } 2520 2521 /// Maps frontend action to command line option. 2522 static Optional<OptSpecifier> 2523 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2524 for (const auto &ActionOpt : getFrontendActionTable()) 2525 if (ActionOpt.first == ProgramAction) 2526 return OptSpecifier(ActionOpt.second); 2527 2528 return std::nullopt; 2529 } 2530 2531 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2532 SmallVectorImpl<const char *> &Args, 2533 CompilerInvocation::StringAllocator SA, 2534 bool IsHeader) { 2535 const FrontendOptions &FrontendOpts = Opts; 2536 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2537 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2538 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2539 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2540 MERGER, EXTRACTOR, TABLE_INDEX) \ 2541 GENERATE_OPTION_WITH_MARSHALLING( \ 2542 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2543 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2544 #include "clang/Driver/Options.inc" 2545 #undef FRONTEND_OPTION_WITH_MARSHALLING 2546 2547 Optional<OptSpecifier> ProgramActionOpt = 2548 getProgramActionOpt(Opts.ProgramAction); 2549 2550 // Generating a simple flag covers most frontend actions. 2551 std::function<void()> GenerateProgramAction = [&]() { 2552 GenerateArg(Args, *ProgramActionOpt, SA); 2553 }; 2554 2555 if (!ProgramActionOpt) { 2556 // PluginAction is the only program action handled separately. 2557 assert(Opts.ProgramAction == frontend::PluginAction && 2558 "Frontend action without option."); 2559 GenerateProgramAction = [&]() { 2560 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2561 }; 2562 } 2563 2564 // FIXME: Simplify the complex 'AST dump' command line. 2565 if (Opts.ProgramAction == frontend::ASTDump) { 2566 GenerateProgramAction = [&]() { 2567 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2568 // marshalling infrastructure. 2569 2570 if (Opts.ASTDumpFormat != ADOF_Default) { 2571 StringRef Format; 2572 switch (Opts.ASTDumpFormat) { 2573 case ADOF_Default: 2574 llvm_unreachable("Default AST dump format."); 2575 case ADOF_JSON: 2576 Format = "json"; 2577 break; 2578 } 2579 2580 if (Opts.ASTDumpAll) 2581 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2582 if (Opts.ASTDumpDecls) 2583 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2584 } else { 2585 if (Opts.ASTDumpAll) 2586 GenerateArg(Args, OPT_ast_dump_all, SA); 2587 if (Opts.ASTDumpDecls) 2588 GenerateArg(Args, OPT_ast_dump, SA); 2589 } 2590 }; 2591 } 2592 2593 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2594 GenerateProgramAction = [&]() { 2595 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2596 }; 2597 } 2598 2599 GenerateProgramAction(); 2600 2601 for (const auto &PluginArgs : Opts.PluginArgs) { 2602 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2603 const char *Spelling = 2604 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2605 for (const auto &PluginArg : PluginArgs.second) 2606 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2607 } 2608 2609 for (const auto &Ext : Opts.ModuleFileExtensions) 2610 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2611 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2612 2613 if (!Opts.CodeCompletionAt.FileName.empty()) 2614 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2615 SA); 2616 2617 for (const auto &Plugin : Opts.Plugins) 2618 GenerateArg(Args, OPT_load, Plugin, SA); 2619 2620 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2621 2622 for (const auto &ModuleFile : Opts.ModuleFiles) 2623 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2624 2625 if (Opts.AuxTargetCPU) 2626 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2627 2628 if (Opts.AuxTargetFeatures) 2629 for (const auto &Feature : *Opts.AuxTargetFeatures) 2630 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2631 2632 { 2633 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2634 StringRef ModuleMap = 2635 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2636 StringRef HeaderUnit = ""; 2637 switch (Opts.DashX.getHeaderUnitKind()) { 2638 case InputKind::HeaderUnit_None: 2639 break; 2640 case InputKind::HeaderUnit_User: 2641 HeaderUnit = "-user"; 2642 break; 2643 case InputKind::HeaderUnit_System: 2644 HeaderUnit = "-system"; 2645 break; 2646 case InputKind::HeaderUnit_Abs: 2647 HeaderUnit = "-header-unit"; 2648 break; 2649 } 2650 StringRef Header = IsHeader ? "-header" : ""; 2651 2652 StringRef Lang; 2653 switch (Opts.DashX.getLanguage()) { 2654 case Language::C: 2655 Lang = "c"; 2656 break; 2657 case Language::OpenCL: 2658 Lang = "cl"; 2659 break; 2660 case Language::OpenCLCXX: 2661 Lang = "clcpp"; 2662 break; 2663 case Language::CUDA: 2664 Lang = "cuda"; 2665 break; 2666 case Language::HIP: 2667 Lang = "hip"; 2668 break; 2669 case Language::CXX: 2670 Lang = "c++"; 2671 break; 2672 case Language::ObjC: 2673 Lang = "objective-c"; 2674 break; 2675 case Language::ObjCXX: 2676 Lang = "objective-c++"; 2677 break; 2678 case Language::RenderScript: 2679 Lang = "renderscript"; 2680 break; 2681 case Language::Asm: 2682 Lang = "assembler-with-cpp"; 2683 break; 2684 case Language::Unknown: 2685 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2686 "Generating -x argument for unknown language (not precompiled)."); 2687 Lang = "ast"; 2688 break; 2689 case Language::LLVM_IR: 2690 Lang = "ir"; 2691 break; 2692 case Language::HLSL: 2693 Lang = "hlsl"; 2694 break; 2695 } 2696 2697 GenerateArg(Args, OPT_x, 2698 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2699 } 2700 2701 // OPT_INPUT has a unique class, generate it directly. 2702 for (const auto &Input : Opts.Inputs) 2703 Args.push_back(SA(Input.getFile())); 2704 } 2705 2706 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2707 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2708 unsigned NumErrorsBefore = Diags.getNumErrors(); 2709 2710 FrontendOptions &FrontendOpts = Opts; 2711 2712 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2713 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2714 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2715 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2716 MERGER, EXTRACTOR, TABLE_INDEX) \ 2717 PARSE_OPTION_WITH_MARSHALLING( \ 2718 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2719 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2720 #include "clang/Driver/Options.inc" 2721 #undef FRONTEND_OPTION_WITH_MARSHALLING 2722 2723 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2724 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2725 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2726 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2727 assert(ProgramAction && "Option specifier not in Action_Group."); 2728 2729 if (ProgramAction == frontend::ASTDump && 2730 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2731 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2732 .CaseLower("default", ADOF_Default) 2733 .CaseLower("json", ADOF_JSON) 2734 .Default(std::numeric_limits<unsigned>::max()); 2735 2736 if (Val != std::numeric_limits<unsigned>::max()) 2737 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2738 else { 2739 Diags.Report(diag::err_drv_invalid_value) 2740 << A->getAsString(Args) << A->getValue(); 2741 Opts.ASTDumpFormat = ADOF_Default; 2742 } 2743 } 2744 2745 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2746 Opts.FixItSuffix = A->getValue(); 2747 2748 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2749 StringRef ArgStr = 2750 Args.hasArg(OPT_interface_stub_version_EQ) 2751 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2752 : "ifs-v1"; 2753 if (ArgStr == "experimental-yaml-elf-v1" || 2754 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2755 ArgStr == "experimental-tapi-elf-v1") { 2756 std::string ErrorMessage = 2757 "Invalid interface stub format: " + ArgStr.str() + 2758 " is deprecated."; 2759 Diags.Report(diag::err_drv_invalid_value) 2760 << "Must specify a valid interface stub format type, ie: " 2761 "-interface-stub-version=ifs-v1" 2762 << ErrorMessage; 2763 ProgramAction = frontend::ParseSyntaxOnly; 2764 } else if (!ArgStr.startswith("ifs-")) { 2765 std::string ErrorMessage = 2766 "Invalid interface stub format: " + ArgStr.str() + "."; 2767 Diags.Report(diag::err_drv_invalid_value) 2768 << "Must specify a valid interface stub format type, ie: " 2769 "-interface-stub-version=ifs-v1" 2770 << ErrorMessage; 2771 ProgramAction = frontend::ParseSyntaxOnly; 2772 } 2773 } 2774 2775 Opts.ProgramAction = *ProgramAction; 2776 } 2777 2778 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2779 Opts.Plugins.emplace_back(A->getValue(0)); 2780 Opts.ProgramAction = frontend::PluginAction; 2781 Opts.ActionName = A->getValue(); 2782 } 2783 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2784 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2785 2786 for (const std::string &Arg : 2787 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2788 std::string BlockName; 2789 unsigned MajorVersion; 2790 unsigned MinorVersion; 2791 bool Hashed; 2792 std::string UserInfo; 2793 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2794 MinorVersion, Hashed, UserInfo)) { 2795 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2796 2797 continue; 2798 } 2799 2800 // Add the testing module file extension. 2801 Opts.ModuleFileExtensions.push_back( 2802 std::make_shared<TestModuleFileExtension>( 2803 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2804 } 2805 2806 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2807 Opts.CodeCompletionAt = 2808 ParsedSourceLocation::FromString(A->getValue()); 2809 if (Opts.CodeCompletionAt.FileName.empty()) 2810 Diags.Report(diag::err_drv_invalid_value) 2811 << A->getAsString(Args) << A->getValue(); 2812 } 2813 2814 Opts.Plugins = Args.getAllArgValues(OPT_load); 2815 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2816 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2817 // Only the -fmodule-file=<file> form. 2818 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2819 StringRef Val = A->getValue(); 2820 if (!Val.contains('=')) 2821 Opts.ModuleFiles.push_back(std::string(Val)); 2822 } 2823 2824 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2825 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2826 << "-emit-module"; 2827 2828 if (Args.hasArg(OPT_aux_target_cpu)) 2829 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2830 if (Args.hasArg(OPT_aux_target_feature)) 2831 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2832 2833 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2834 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2835 Diags.Report(diag::err_drv_argument_not_allowed_with) 2836 << "ARC migration" << "ObjC migration"; 2837 } 2838 2839 InputKind DashX(Language::Unknown); 2840 if (const Arg *A = Args.getLastArg(OPT_x)) { 2841 StringRef XValue = A->getValue(); 2842 2843 // Parse suffixes: 2844 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2845 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2846 bool Preprocessed = XValue.consume_back("-cpp-output"); 2847 bool ModuleMap = XValue.consume_back("-module-map"); 2848 // Detect and consume the header indicator. 2849 bool IsHeader = 2850 XValue != "precompiled-header" && XValue.consume_back("-header"); 2851 2852 // If we have c++-{user,system}-header, that indicates a header unit input 2853 // likewise, if the user put -fmodule-header together with a header with an 2854 // absolute path (header-unit-header). 2855 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2856 if (IsHeader || Preprocessed) { 2857 if (XValue.consume_back("-header-unit")) 2858 HUK = InputKind::HeaderUnit_Abs; 2859 else if (XValue.consume_back("-system")) 2860 HUK = InputKind::HeaderUnit_System; 2861 else if (XValue.consume_back("-user")) 2862 HUK = InputKind::HeaderUnit_User; 2863 } 2864 2865 // The value set by this processing is an un-preprocessed source which is 2866 // not intended to be a module map or header unit. 2867 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2868 HUK == InputKind::HeaderUnit_None; 2869 2870 // Principal languages. 2871 DashX = llvm::StringSwitch<InputKind>(XValue) 2872 .Case("c", Language::C) 2873 .Case("cl", Language::OpenCL) 2874 .Case("clcpp", Language::OpenCLCXX) 2875 .Case("cuda", Language::CUDA) 2876 .Case("hip", Language::HIP) 2877 .Case("c++", Language::CXX) 2878 .Case("objective-c", Language::ObjC) 2879 .Case("objective-c++", Language::ObjCXX) 2880 .Case("renderscript", Language::RenderScript) 2881 .Case("hlsl", Language::HLSL) 2882 .Default(Language::Unknown); 2883 2884 // "objc[++]-cpp-output" is an acceptable synonym for 2885 // "objective-c[++]-cpp-output". 2886 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2887 HUK == InputKind::HeaderUnit_None) 2888 DashX = llvm::StringSwitch<InputKind>(XValue) 2889 .Case("objc", Language::ObjC) 2890 .Case("objc++", Language::ObjCXX) 2891 .Default(Language::Unknown); 2892 2893 // Some special cases cannot be combined with suffixes. 2894 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2895 HUK == InputKind::HeaderUnit_None) 2896 DashX = llvm::StringSwitch<InputKind>(XValue) 2897 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2898 .Case("assembler-with-cpp", Language::Asm) 2899 .Cases("ast", "pcm", "precompiled-header", 2900 InputKind(Language::Unknown, InputKind::Precompiled)) 2901 .Case("ir", Language::LLVM_IR) 2902 .Default(Language::Unknown); 2903 2904 if (DashX.isUnknown()) 2905 Diags.Report(diag::err_drv_invalid_value) 2906 << A->getAsString(Args) << A->getValue(); 2907 2908 if (Preprocessed) 2909 DashX = DashX.getPreprocessed(); 2910 // A regular header is considered mutually exclusive with a header unit. 2911 if (HUK != InputKind::HeaderUnit_None) { 2912 DashX = DashX.withHeaderUnit(HUK); 2913 IsHeaderFile = true; 2914 } else if (IsHeaderFile) 2915 DashX = DashX.getHeader(); 2916 if (ModuleMap) 2917 DashX = DashX.withFormat(InputKind::ModuleMap); 2918 } 2919 2920 // '-' is the default input if none is given. 2921 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2922 Opts.Inputs.clear(); 2923 if (Inputs.empty()) 2924 Inputs.push_back("-"); 2925 2926 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2927 Inputs.size() > 1) 2928 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2929 2930 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2931 InputKind IK = DashX; 2932 if (IK.isUnknown()) { 2933 IK = FrontendOptions::getInputKindForExtension( 2934 StringRef(Inputs[i]).rsplit('.').second); 2935 // FIXME: Warn on this? 2936 if (IK.isUnknown()) 2937 IK = Language::C; 2938 // FIXME: Remove this hack. 2939 if (i == 0) 2940 DashX = IK; 2941 } 2942 2943 bool IsSystem = false; 2944 2945 // The -emit-module action implicitly takes a module map. 2946 if (Opts.ProgramAction == frontend::GenerateModule && 2947 IK.getFormat() == InputKind::Source) { 2948 IK = IK.withFormat(InputKind::ModuleMap); 2949 IsSystem = Opts.IsSystemModule; 2950 } 2951 2952 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2953 } 2954 2955 Opts.DashX = DashX; 2956 2957 return Diags.getNumErrors() == NumErrorsBefore; 2958 } 2959 2960 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2961 void *MainAddr) { 2962 std::string ClangExecutable = 2963 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2964 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2965 } 2966 2967 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2968 SmallVectorImpl<const char *> &Args, 2969 CompilerInvocation::StringAllocator SA) { 2970 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2971 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2972 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2973 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2974 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2975 MERGER, EXTRACTOR, TABLE_INDEX) \ 2976 GENERATE_OPTION_WITH_MARSHALLING( \ 2977 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2978 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2979 #include "clang/Driver/Options.inc" 2980 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2981 2982 if (Opts.UseLibcxx) 2983 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2984 2985 if (!Opts.ModuleCachePath.empty()) 2986 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2987 2988 for (const auto &File : Opts.PrebuiltModuleFiles) 2989 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2990 2991 for (const auto &Path : Opts.PrebuiltModulePaths) 2992 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2993 2994 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2995 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2996 2997 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2998 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2999 llvm::Optional<bool> IsFramework, 3000 llvm::Optional<bool> IgnoreSysRoot) { 3001 return llvm::is_contained(Groups, Entry.Group) && 3002 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3003 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3004 }; 3005 3006 auto It = Opts.UserEntries.begin(); 3007 auto End = Opts.UserEntries.end(); 3008 3009 // Add -I..., -F..., and -index-header-map options in order. 3010 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3011 std::nullopt, true); 3012 ++It) { 3013 OptSpecifier Opt = [It, Matches]() { 3014 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3015 return OPT_F; 3016 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3017 return OPT_I; 3018 if (Matches(*It, frontend::Angled, true, true)) 3019 return OPT_F; 3020 if (Matches(*It, frontend::Angled, false, true)) 3021 return OPT_I; 3022 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3023 }(); 3024 3025 if (It->Group == frontend::IndexHeaderMap) 3026 GenerateArg(Args, OPT_index_header_map, SA); 3027 GenerateArg(Args, Opt, It->Path, SA); 3028 }; 3029 3030 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3031 // have already been generated as "-I[xx]yy". If that's the case, their 3032 // position on command line was such that this has no semantic impact on 3033 // include paths. 3034 for (; It < End && 3035 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3036 ++It) { 3037 OptSpecifier Opt = 3038 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3039 GenerateArg(Args, Opt, It->Path, SA); 3040 } 3041 3042 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3043 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3044 // command line was such that this has no semantic impact on include paths. 3045 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3046 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3047 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3048 GenerateArg(Args, OPT_iquote, It->Path, SA); 3049 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3050 ++It) 3051 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3052 It->Path, SA); 3053 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3054 GenerateArg(Args, OPT_iframework, It->Path, SA); 3055 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3056 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3057 3058 // Add the paths for the various language specific isystem flags. 3059 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3060 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3061 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3062 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3063 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3064 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3065 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3066 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3067 3068 // Add the internal paths from a driver that detects standard include paths. 3069 // Note: Some paths that came from "-internal-isystem" arguments may have 3070 // already been generated as "-isystem". If that's the case, their position on 3071 // command line was such that this has no semantic impact on include paths. 3072 for (; It < End && 3073 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3074 ++It) { 3075 OptSpecifier Opt = It->Group == frontend::System 3076 ? OPT_internal_isystem 3077 : OPT_internal_externc_isystem; 3078 GenerateArg(Args, Opt, It->Path, SA); 3079 } 3080 3081 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3082 3083 // Add the path prefixes which are implicitly treated as being system headers. 3084 for (const auto &P : Opts.SystemHeaderPrefixes) { 3085 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3086 : OPT_no_system_header_prefix; 3087 GenerateArg(Args, Opt, P.Prefix, SA); 3088 } 3089 3090 for (const std::string &F : Opts.VFSOverlayFiles) 3091 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3092 } 3093 3094 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3095 DiagnosticsEngine &Diags, 3096 const std::string &WorkingDir) { 3097 unsigned NumErrorsBefore = Diags.getNumErrors(); 3098 3099 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3100 3101 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3102 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3103 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3104 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3105 MERGER, EXTRACTOR, TABLE_INDEX) \ 3106 PARSE_OPTION_WITH_MARSHALLING( \ 3107 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3108 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3109 #include "clang/Driver/Options.inc" 3110 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3111 3112 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3113 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3114 3115 // Canonicalize -fmodules-cache-path before storing it. 3116 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3117 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3118 if (WorkingDir.empty()) 3119 llvm::sys::fs::make_absolute(P); 3120 else 3121 llvm::sys::fs::make_absolute(WorkingDir, P); 3122 } 3123 llvm::sys::path::remove_dots(P); 3124 Opts.ModuleCachePath = std::string(P.str()); 3125 3126 // Only the -fmodule-file=<name>=<file> form. 3127 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3128 StringRef Val = A->getValue(); 3129 if (Val.contains('=')) { 3130 auto Split = Val.split('='); 3131 Opts.PrebuiltModuleFiles.insert( 3132 {std::string(Split.first), std::string(Split.second)}); 3133 } 3134 } 3135 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3136 Opts.AddPrebuiltModulePath(A->getValue()); 3137 3138 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3139 StringRef MacroDef = A->getValue(); 3140 Opts.ModulesIgnoreMacros.insert( 3141 llvm::CachedHashString(MacroDef.split('=').first)); 3142 } 3143 3144 // Add -I..., -F..., and -index-header-map options in order. 3145 bool IsIndexHeaderMap = false; 3146 bool IsSysrootSpecified = 3147 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3148 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3149 if (A->getOption().matches(OPT_index_header_map)) { 3150 // -index-header-map applies to the next -I or -F. 3151 IsIndexHeaderMap = true; 3152 continue; 3153 } 3154 3155 frontend::IncludeDirGroup Group = 3156 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3157 3158 bool IsFramework = A->getOption().matches(OPT_F); 3159 std::string Path = A->getValue(); 3160 3161 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3162 SmallString<32> Buffer; 3163 llvm::sys::path::append(Buffer, Opts.Sysroot, 3164 llvm::StringRef(A->getValue()).substr(1)); 3165 Path = std::string(Buffer.str()); 3166 } 3167 3168 Opts.AddPath(Path, Group, IsFramework, 3169 /*IgnoreSysroot*/ true); 3170 IsIndexHeaderMap = false; 3171 } 3172 3173 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3174 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3175 for (const auto *A : 3176 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3177 if (A->getOption().matches(OPT_iprefix)) 3178 Prefix = A->getValue(); 3179 else if (A->getOption().matches(OPT_iwithprefix)) 3180 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3181 else 3182 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3183 } 3184 3185 for (const auto *A : Args.filtered(OPT_idirafter)) 3186 Opts.AddPath(A->getValue(), frontend::After, false, true); 3187 for (const auto *A : Args.filtered(OPT_iquote)) 3188 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3189 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3190 Opts.AddPath(A->getValue(), frontend::System, false, 3191 !A->getOption().matches(OPT_iwithsysroot)); 3192 for (const auto *A : Args.filtered(OPT_iframework)) 3193 Opts.AddPath(A->getValue(), frontend::System, true, true); 3194 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3195 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3196 /*IgnoreSysRoot=*/false); 3197 3198 // Add the paths for the various language specific isystem flags. 3199 for (const auto *A : Args.filtered(OPT_c_isystem)) 3200 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3201 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3202 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3203 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3204 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3205 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3206 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3207 3208 // Add the internal paths from a driver that detects standard include paths. 3209 for (const auto *A : 3210 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3211 frontend::IncludeDirGroup Group = frontend::System; 3212 if (A->getOption().matches(OPT_internal_externc_isystem)) 3213 Group = frontend::ExternCSystem; 3214 Opts.AddPath(A->getValue(), Group, false, true); 3215 } 3216 3217 // Add the path prefixes which are implicitly treated as being system headers. 3218 for (const auto *A : 3219 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3220 Opts.AddSystemHeaderPrefix( 3221 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3222 3223 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3224 Opts.AddVFSOverlayFile(A->getValue()); 3225 3226 return Diags.getNumErrors() == NumErrorsBefore; 3227 } 3228 3229 /// Check if input file kind and language standard are compatible. 3230 static bool IsInputCompatibleWithStandard(InputKind IK, 3231 const LangStandard &S) { 3232 switch (IK.getLanguage()) { 3233 case Language::Unknown: 3234 case Language::LLVM_IR: 3235 llvm_unreachable("should not parse language flags for this input"); 3236 3237 case Language::C: 3238 case Language::ObjC: 3239 case Language::RenderScript: 3240 return S.getLanguage() == Language::C; 3241 3242 case Language::OpenCL: 3243 return S.getLanguage() == Language::OpenCL || 3244 S.getLanguage() == Language::OpenCLCXX; 3245 3246 case Language::OpenCLCXX: 3247 return S.getLanguage() == Language::OpenCLCXX; 3248 3249 case Language::CXX: 3250 case Language::ObjCXX: 3251 return S.getLanguage() == Language::CXX; 3252 3253 case Language::CUDA: 3254 // FIXME: What -std= values should be permitted for CUDA compilations? 3255 return S.getLanguage() == Language::CUDA || 3256 S.getLanguage() == Language::CXX; 3257 3258 case Language::HIP: 3259 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3260 3261 case Language::Asm: 3262 // Accept (and ignore) all -std= values. 3263 // FIXME: The -std= value is not ignored; it affects the tokenization 3264 // and preprocessing rules if we're preprocessing this asm input. 3265 return true; 3266 3267 case Language::HLSL: 3268 return S.getLanguage() == Language::HLSL; 3269 } 3270 3271 llvm_unreachable("unexpected input language"); 3272 } 3273 3274 /// Get language name for given input kind. 3275 static StringRef GetInputKindName(InputKind IK) { 3276 switch (IK.getLanguage()) { 3277 case Language::C: 3278 return "C"; 3279 case Language::ObjC: 3280 return "Objective-C"; 3281 case Language::CXX: 3282 return "C++"; 3283 case Language::ObjCXX: 3284 return "Objective-C++"; 3285 case Language::OpenCL: 3286 return "OpenCL"; 3287 case Language::OpenCLCXX: 3288 return "C++ for OpenCL"; 3289 case Language::CUDA: 3290 return "CUDA"; 3291 case Language::RenderScript: 3292 return "RenderScript"; 3293 case Language::HIP: 3294 return "HIP"; 3295 3296 case Language::Asm: 3297 return "Asm"; 3298 case Language::LLVM_IR: 3299 return "LLVM IR"; 3300 3301 case Language::HLSL: 3302 return "HLSL"; 3303 3304 case Language::Unknown: 3305 break; 3306 } 3307 llvm_unreachable("unknown input language"); 3308 } 3309 3310 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3311 SmallVectorImpl<const char *> &Args, 3312 StringAllocator SA, 3313 const llvm::Triple &T, InputKind IK) { 3314 if (IK.getFormat() == InputKind::Precompiled || 3315 IK.getLanguage() == Language::LLVM_IR) { 3316 if (Opts.ObjCAutoRefCount) 3317 GenerateArg(Args, OPT_fobjc_arc, SA); 3318 if (Opts.PICLevel != 0) 3319 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3320 if (Opts.PIE) 3321 GenerateArg(Args, OPT_pic_is_pie, SA); 3322 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3323 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3324 3325 return; 3326 } 3327 3328 OptSpecifier StdOpt; 3329 switch (Opts.LangStd) { 3330 case LangStandard::lang_opencl10: 3331 case LangStandard::lang_opencl11: 3332 case LangStandard::lang_opencl12: 3333 case LangStandard::lang_opencl20: 3334 case LangStandard::lang_opencl30: 3335 case LangStandard::lang_openclcpp10: 3336 case LangStandard::lang_openclcpp2021: 3337 StdOpt = OPT_cl_std_EQ; 3338 break; 3339 default: 3340 StdOpt = OPT_std_EQ; 3341 break; 3342 } 3343 3344 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3345 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3346 3347 if (Opts.IncludeDefaultHeader) 3348 GenerateArg(Args, OPT_finclude_default_header, SA); 3349 if (Opts.DeclareOpenCLBuiltins) 3350 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3351 3352 const LangOptions *LangOpts = &Opts; 3353 3354 #define LANG_OPTION_WITH_MARSHALLING( \ 3355 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3356 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3357 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3358 MERGER, EXTRACTOR, TABLE_INDEX) \ 3359 GENERATE_OPTION_WITH_MARSHALLING( \ 3360 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3361 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3362 #include "clang/Driver/Options.inc" 3363 #undef LANG_OPTION_WITH_MARSHALLING 3364 3365 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3366 3367 if (Opts.ObjC) { 3368 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3369 3370 if (Opts.GC == LangOptions::GCOnly) 3371 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3372 else if (Opts.GC == LangOptions::HybridGC) 3373 GenerateArg(Args, OPT_fobjc_gc, SA); 3374 else if (Opts.ObjCAutoRefCount == 1) 3375 GenerateArg(Args, OPT_fobjc_arc, SA); 3376 3377 if (Opts.ObjCWeakRuntime) 3378 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3379 3380 if (Opts.ObjCWeak) 3381 GenerateArg(Args, OPT_fobjc_weak, SA); 3382 3383 if (Opts.ObjCSubscriptingLegacyRuntime) 3384 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3385 } 3386 3387 if (Opts.GNUCVersion != 0) { 3388 unsigned Major = Opts.GNUCVersion / 100 / 100; 3389 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3390 unsigned Patch = Opts.GNUCVersion % 100; 3391 GenerateArg(Args, OPT_fgnuc_version_EQ, 3392 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3393 } 3394 3395 if (Opts.IgnoreXCOFFVisibility) 3396 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3397 3398 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3399 GenerateArg(Args, OPT_ftrapv, SA); 3400 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3401 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3402 GenerateArg(Args, OPT_fwrapv, SA); 3403 } 3404 3405 if (Opts.MSCompatibilityVersion != 0) { 3406 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3407 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3408 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3409 GenerateArg(Args, OPT_fms_compatibility_version, 3410 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3411 } 3412 3413 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3414 if (!Opts.Trigraphs) 3415 GenerateArg(Args, OPT_fno_trigraphs, SA); 3416 } else { 3417 if (Opts.Trigraphs) 3418 GenerateArg(Args, OPT_ftrigraphs, SA); 3419 } 3420 3421 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3422 GenerateArg(Args, OPT_fblocks, SA); 3423 3424 if (Opts.ConvergentFunctions && 3425 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3426 GenerateArg(Args, OPT_fconvergent_functions, SA); 3427 3428 if (Opts.NoBuiltin && !Opts.Freestanding) 3429 GenerateArg(Args, OPT_fno_builtin, SA); 3430 3431 if (!Opts.NoBuiltin) 3432 for (const auto &Func : Opts.NoBuiltinFuncs) 3433 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3434 3435 if (Opts.LongDoubleSize == 128) 3436 GenerateArg(Args, OPT_mlong_double_128, SA); 3437 else if (Opts.LongDoubleSize == 64) 3438 GenerateArg(Args, OPT_mlong_double_64, SA); 3439 else if (Opts.LongDoubleSize == 80) 3440 GenerateArg(Args, OPT_mlong_double_80, SA); 3441 3442 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3443 3444 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3445 // '-fopenmp-targets='. 3446 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3447 GenerateArg(Args, OPT_fopenmp, SA); 3448 3449 if (Opts.OpenMP != 50) 3450 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3451 3452 if (!Opts.OpenMPUseTLS) 3453 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3454 3455 if (Opts.OpenMPIsDevice) 3456 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3457 3458 if (Opts.OpenMPIRBuilder) 3459 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3460 } 3461 3462 if (Opts.OpenMPSimd) { 3463 GenerateArg(Args, OPT_fopenmp_simd, SA); 3464 3465 if (Opts.OpenMP != 50) 3466 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3467 } 3468 3469 if (Opts.OpenMPThreadSubscription) 3470 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3471 3472 if (Opts.OpenMPTeamSubscription) 3473 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3474 3475 if (Opts.OpenMPTargetDebug != 0) 3476 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3477 Twine(Opts.OpenMPTargetDebug), SA); 3478 3479 if (Opts.OpenMPCUDANumSMs != 0) 3480 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3481 Twine(Opts.OpenMPCUDANumSMs), SA); 3482 3483 if (Opts.OpenMPCUDABlocksPerSM != 0) 3484 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3485 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3486 3487 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3488 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3489 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3490 3491 if (!Opts.OMPTargetTriples.empty()) { 3492 std::string Targets; 3493 llvm::raw_string_ostream OS(Targets); 3494 llvm::interleave( 3495 Opts.OMPTargetTriples, OS, 3496 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3497 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3498 } 3499 3500 if (!Opts.OMPHostIRFile.empty()) 3501 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3502 3503 if (Opts.OpenMPCUDAMode) 3504 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3505 3506 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3507 // generated from CodeGenOptions. 3508 3509 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3510 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3511 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3512 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3513 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3514 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3515 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3516 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3517 3518 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3519 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3520 3521 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3522 for (const std::string &F : Opts.NoSanitizeFiles) 3523 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3524 3525 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3526 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3527 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3528 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3529 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3530 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3531 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3532 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3533 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3534 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3535 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3536 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3537 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3538 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3539 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3540 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3541 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver15) 3542 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "15.0", SA); 3543 3544 if (Opts.getSignReturnAddressScope() == 3545 LangOptions::SignReturnAddressScopeKind::All) 3546 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3547 else if (Opts.getSignReturnAddressScope() == 3548 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3549 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3550 3551 if (Opts.getSignReturnAddressKey() == 3552 LangOptions::SignReturnAddressKeyKind::BKey) 3553 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3554 3555 if (Opts.CXXABI) 3556 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3557 SA); 3558 3559 if (Opts.RelativeCXXABIVTables) 3560 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3561 else 3562 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3563 3564 if (Opts.UseTargetPathSeparator) 3565 GenerateArg(Args, OPT_ffile_reproducible, SA); 3566 else 3567 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3568 3569 for (const auto &MP : Opts.MacroPrefixMap) 3570 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3571 3572 if (!Opts.RandstructSeed.empty()) 3573 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3574 } 3575 3576 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3577 InputKind IK, const llvm::Triple &T, 3578 std::vector<std::string> &Includes, 3579 DiagnosticsEngine &Diags) { 3580 unsigned NumErrorsBefore = Diags.getNumErrors(); 3581 3582 if (IK.getFormat() == InputKind::Precompiled || 3583 IK.getLanguage() == Language::LLVM_IR) { 3584 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3585 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3586 // what the input type is. 3587 if (Args.hasArg(OPT_fobjc_arc)) 3588 Opts.ObjCAutoRefCount = 1; 3589 // PICLevel and PIELevel are needed during code generation and this should 3590 // be set regardless of the input type. 3591 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3592 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3593 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3594 Diags, Opts.Sanitize); 3595 3596 return Diags.getNumErrors() == NumErrorsBefore; 3597 } 3598 3599 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3600 // FIXME: Should we really be parsing this for an Language::Asm input? 3601 3602 // FIXME: Cleanup per-file based stuff. 3603 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3604 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3605 LangStd = LangStandard::getLangKind(A->getValue()); 3606 if (LangStd == LangStandard::lang_unspecified) { 3607 Diags.Report(diag::err_drv_invalid_value) 3608 << A->getAsString(Args) << A->getValue(); 3609 // Report supported standards with short description. 3610 for (unsigned KindValue = 0; 3611 KindValue != LangStandard::lang_unspecified; 3612 ++KindValue) { 3613 const LangStandard &Std = LangStandard::getLangStandardForKind( 3614 static_cast<LangStandard::Kind>(KindValue)); 3615 if (IsInputCompatibleWithStandard(IK, Std)) { 3616 auto Diag = Diags.Report(diag::note_drv_use_standard); 3617 Diag << Std.getName() << Std.getDescription(); 3618 unsigned NumAliases = 0; 3619 #define LANGSTANDARD(id, name, lang, desc, features) 3620 #define LANGSTANDARD_ALIAS(id, alias) \ 3621 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3622 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3623 #include "clang/Basic/LangStandards.def" 3624 Diag << NumAliases; 3625 #define LANGSTANDARD(id, name, lang, desc, features) 3626 #define LANGSTANDARD_ALIAS(id, alias) \ 3627 if (KindValue == LangStandard::lang_##id) Diag << alias; 3628 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3629 #include "clang/Basic/LangStandards.def" 3630 } 3631 } 3632 } else { 3633 // Valid standard, check to make sure language and standard are 3634 // compatible. 3635 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3636 if (!IsInputCompatibleWithStandard(IK, Std)) { 3637 Diags.Report(diag::err_drv_argument_not_allowed_with) 3638 << A->getAsString(Args) << GetInputKindName(IK); 3639 } 3640 } 3641 } 3642 3643 // -cl-std only applies for OpenCL language standards. 3644 // Override the -std option in this case. 3645 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3646 LangStandard::Kind OpenCLLangStd 3647 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3648 .Cases("cl", "CL", LangStandard::lang_opencl10) 3649 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3650 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3651 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3652 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3653 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3654 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3655 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3656 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3657 .Default(LangStandard::lang_unspecified); 3658 3659 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3660 Diags.Report(diag::err_drv_invalid_value) 3661 << A->getAsString(Args) << A->getValue(); 3662 } 3663 else 3664 LangStd = OpenCLLangStd; 3665 } 3666 3667 // These need to be parsed now. They are used to set OpenCL defaults. 3668 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3669 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3670 3671 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3672 3673 // The key paths of codegen options defined in Options.td start with 3674 // "LangOpts->". Let's provide the expected variable name and type. 3675 LangOptions *LangOpts = &Opts; 3676 3677 #define LANG_OPTION_WITH_MARSHALLING( \ 3678 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3679 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3680 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3681 MERGER, EXTRACTOR, TABLE_INDEX) \ 3682 PARSE_OPTION_WITH_MARSHALLING( \ 3683 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3684 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3685 #include "clang/Driver/Options.inc" 3686 #undef LANG_OPTION_WITH_MARSHALLING 3687 3688 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3689 StringRef Name = A->getValue(); 3690 if (Name == "full" || Name == "branch") { 3691 Opts.CFProtectionBranch = 1; 3692 } 3693 } 3694 3695 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3696 !Args.hasArg(OPT_sycl_std_EQ)) { 3697 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3698 // provide -sycl-std=, we want to default it to whatever the default SYCL 3699 // version is. I could not find a way to express this with the options 3700 // tablegen because we still want this value to be SYCL_None when the user 3701 // is not in device or host mode. 3702 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3703 } 3704 3705 if (Opts.ObjC) { 3706 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3707 StringRef value = arg->getValue(); 3708 if (Opts.ObjCRuntime.tryParse(value)) 3709 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3710 } 3711 3712 if (Args.hasArg(OPT_fobjc_gc_only)) 3713 Opts.setGC(LangOptions::GCOnly); 3714 else if (Args.hasArg(OPT_fobjc_gc)) 3715 Opts.setGC(LangOptions::HybridGC); 3716 else if (Args.hasArg(OPT_fobjc_arc)) { 3717 Opts.ObjCAutoRefCount = 1; 3718 if (!Opts.ObjCRuntime.allowsARC()) 3719 Diags.Report(diag::err_arc_unsupported_on_runtime); 3720 } 3721 3722 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3723 // whether the feature is actually enabled. This is predominantly 3724 // determined by -fobjc-runtime, but we allow it to be overridden 3725 // from the command line for testing purposes. 3726 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3727 Opts.ObjCWeakRuntime = 1; 3728 else 3729 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3730 3731 // ObjCWeak determines whether __weak is actually enabled. 3732 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3733 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3734 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3735 assert(!Opts.ObjCWeak); 3736 } else if (Opts.getGC() != LangOptions::NonGC) { 3737 Diags.Report(diag::err_objc_weak_with_gc); 3738 } else if (!Opts.ObjCWeakRuntime) { 3739 Diags.Report(diag::err_objc_weak_unsupported); 3740 } else { 3741 Opts.ObjCWeak = 1; 3742 } 3743 } else if (Opts.ObjCAutoRefCount) { 3744 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3745 } 3746 3747 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3748 Opts.ObjCSubscriptingLegacyRuntime = 3749 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3750 } 3751 3752 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3753 // Check that the version has 1 to 3 components and the minor and patch 3754 // versions fit in two decimal digits. 3755 VersionTuple GNUCVer; 3756 bool Invalid = GNUCVer.tryParse(A->getValue()); 3757 unsigned Major = GNUCVer.getMajor(); 3758 unsigned Minor = GNUCVer.getMinor().value_or(0); 3759 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3760 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3761 Diags.Report(diag::err_drv_invalid_value) 3762 << A->getAsString(Args) << A->getValue(); 3763 } 3764 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3765 } 3766 3767 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3768 Opts.IgnoreXCOFFVisibility = 1; 3769 3770 if (Args.hasArg(OPT_ftrapv)) { 3771 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3772 // Set the handler, if one is specified. 3773 Opts.OverflowHandler = 3774 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3775 } 3776 else if (Args.hasArg(OPT_fwrapv)) 3777 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3778 3779 Opts.MSCompatibilityVersion = 0; 3780 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3781 VersionTuple VT; 3782 if (VT.tryParse(A->getValue())) 3783 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3784 << A->getValue(); 3785 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3786 VT.getMinor().value_or(0) * 100000 + 3787 VT.getSubminor().value_or(0); 3788 } 3789 3790 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3791 // is specified, or -std is set to a conforming mode. 3792 // Trigraphs are disabled by default in c++1z onwards. 3793 // For z/OS, trigraphs are enabled by default (without regard to the above). 3794 Opts.Trigraphs = 3795 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3796 Opts.Trigraphs = 3797 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3798 3799 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3800 && Opts.OpenCLVersion == 200); 3801 3802 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3803 Opts.SYCLIsDevice || 3804 Args.hasArg(OPT_fconvergent_functions); 3805 3806 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3807 if (!Opts.NoBuiltin) 3808 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3809 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3810 if (A->getOption().matches(options::OPT_mlong_double_64)) 3811 Opts.LongDoubleSize = 64; 3812 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3813 Opts.LongDoubleSize = 80; 3814 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3815 Opts.LongDoubleSize = 128; 3816 else 3817 Opts.LongDoubleSize = 0; 3818 } 3819 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 3820 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3821 3822 llvm::sort(Opts.ModuleFeatures); 3823 3824 // -mrtd option 3825 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3826 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3827 Diags.Report(diag::err_drv_argument_not_allowed_with) 3828 << A->getSpelling() << "-fdefault-calling-conv"; 3829 else { 3830 if (T.getArch() != llvm::Triple::x86) 3831 Diags.Report(diag::err_drv_argument_not_allowed_with) 3832 << A->getSpelling() << T.getTriple(); 3833 else 3834 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3835 } 3836 } 3837 3838 // Check if -fopenmp is specified and set default version to 5.0. 3839 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3840 // Check if -fopenmp-simd is specified. 3841 bool IsSimdSpecified = 3842 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3843 /*Default=*/false); 3844 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3845 Opts.OpenMPUseTLS = 3846 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3847 Opts.OpenMPIsDevice = 3848 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3849 Opts.OpenMPIRBuilder = 3850 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3851 bool IsTargetSpecified = 3852 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3853 3854 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3855 3856 if (Opts.OpenMP || Opts.OpenMPSimd) { 3857 if (int Version = getLastArgIntValue( 3858 Args, OPT_fopenmp_version_EQ, 3859 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3860 Opts.OpenMP = Version; 3861 // Provide diagnostic when a given target is not expected to be an OpenMP 3862 // device or host. 3863 if (!Opts.OpenMPIsDevice) { 3864 switch (T.getArch()) { 3865 default: 3866 break; 3867 // Add unsupported host targets here: 3868 case llvm::Triple::nvptx: 3869 case llvm::Triple::nvptx64: 3870 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3871 break; 3872 } 3873 } 3874 } 3875 3876 // Set the flag to prevent the implementation from emitting device exception 3877 // handling code for those requiring so. 3878 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3879 Opts.OpenCLCPlusPlus) { 3880 3881 Opts.Exceptions = 0; 3882 Opts.CXXExceptions = 0; 3883 } 3884 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3885 Opts.OpenMPCUDANumSMs = 3886 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3887 Opts.OpenMPCUDANumSMs, Diags); 3888 Opts.OpenMPCUDABlocksPerSM = 3889 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3890 Opts.OpenMPCUDABlocksPerSM, Diags); 3891 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3892 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3893 Opts.OpenMPCUDAReductionBufNum, Diags); 3894 } 3895 3896 // Set the value of the debugging flag used in the new offloading device RTL. 3897 // Set either by a specific value or to a default if not specified. 3898 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3899 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3900 Opts.OpenMPTargetDebug = getLastArgIntValue( 3901 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3902 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3903 Opts.OpenMPTargetDebug = 1; 3904 } 3905 3906 if (Opts.OpenMPIsDevice) { 3907 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3908 Opts.OpenMPTeamSubscription = true; 3909 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3910 Opts.OpenMPThreadSubscription = true; 3911 } 3912 3913 // Get the OpenMP target triples if any. 3914 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3915 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3916 auto getArchPtrSize = [](const llvm::Triple &T) { 3917 if (T.isArch16Bit()) 3918 return Arch16Bit; 3919 if (T.isArch32Bit()) 3920 return Arch32Bit; 3921 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3922 return Arch64Bit; 3923 }; 3924 3925 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3926 llvm::Triple TT(A->getValue(i)); 3927 3928 if (TT.getArch() == llvm::Triple::UnknownArch || 3929 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3930 TT.getArch() == llvm::Triple::nvptx || 3931 TT.getArch() == llvm::Triple::nvptx64 || 3932 TT.getArch() == llvm::Triple::amdgcn || 3933 TT.getArch() == llvm::Triple::x86 || 3934 TT.getArch() == llvm::Triple::x86_64)) 3935 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3936 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3937 Diags.Report(diag::err_drv_incompatible_omp_arch) 3938 << A->getValue(i) << T.str(); 3939 else 3940 Opts.OMPTargetTriples.push_back(TT); 3941 } 3942 } 3943 3944 // Get OpenMP host file path if any and report if a non existent file is 3945 // found 3946 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3947 Opts.OMPHostIRFile = A->getValue(); 3948 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3949 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3950 << Opts.OMPHostIRFile; 3951 } 3952 3953 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3954 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3955 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3956 3957 // FIXME: Eliminate this dependency. 3958 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3959 OptSize = getOptimizationLevelSize(Args); 3960 Opts.Optimize = Opt != 0; 3961 Opts.OptimizeSize = OptSize != 0; 3962 3963 // This is the __NO_INLINE__ define, which just depends on things like the 3964 // optimization level and -fno-inline, not actually whether the backend has 3965 // inlining enabled. 3966 Opts.NoInlineDefine = !Opts.Optimize; 3967 if (Arg *InlineArg = Args.getLastArg( 3968 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3969 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3970 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3971 Opts.NoInlineDefine = true; 3972 3973 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3974 StringRef Val = A->getValue(); 3975 if (Val == "fast") 3976 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3977 else if (Val == "on") 3978 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3979 else if (Val == "off") 3980 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3981 else if (Val == "fast-honor-pragmas") 3982 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3983 else 3984 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3985 } 3986 3987 // Parse -fsanitize= arguments. 3988 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3989 Diags, Opts.Sanitize); 3990 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3991 std::vector<std::string> systemIgnorelists = 3992 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3993 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3994 systemIgnorelists.begin(), 3995 systemIgnorelists.end()); 3996 3997 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3998 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3999 4000 StringRef Ver = A->getValue(); 4001 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4002 unsigned Major, Minor = 0; 4003 4004 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4005 // y or y.0 (4 <= y <= current version). 4006 if (!VerParts.first.startswith("0") && 4007 !VerParts.first.getAsInteger(10, Major) && 4008 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4009 (Major == 3 ? VerParts.second.size() == 1 && 4010 !VerParts.second.getAsInteger(10, Minor) 4011 : VerParts.first.size() == Ver.size() || 4012 VerParts.second == "0")) { 4013 // Got a valid version number. 4014 if (Major == 3 && Minor <= 8) 4015 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4016 else if (Major <= 4) 4017 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4018 else if (Major <= 6) 4019 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4020 else if (Major <= 7) 4021 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4022 else if (Major <= 9) 4023 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4024 else if (Major <= 11) 4025 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4026 else if (Major <= 12) 4027 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4028 else if (Major <= 14) 4029 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4030 else if (Major <= 15) 4031 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4032 } else if (Ver != "latest") { 4033 Diags.Report(diag::err_drv_invalid_value) 4034 << A->getAsString(Args) << A->getValue(); 4035 } 4036 } 4037 4038 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4039 StringRef SignScope = A->getValue(); 4040 4041 if (SignScope.equals_insensitive("none")) 4042 Opts.setSignReturnAddressScope( 4043 LangOptions::SignReturnAddressScopeKind::None); 4044 else if (SignScope.equals_insensitive("all")) 4045 Opts.setSignReturnAddressScope( 4046 LangOptions::SignReturnAddressScopeKind::All); 4047 else if (SignScope.equals_insensitive("non-leaf")) 4048 Opts.setSignReturnAddressScope( 4049 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4050 else 4051 Diags.Report(diag::err_drv_invalid_value) 4052 << A->getAsString(Args) << SignScope; 4053 4054 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4055 StringRef SignKey = A->getValue(); 4056 if (!SignScope.empty() && !SignKey.empty()) { 4057 if (SignKey.equals_insensitive("a_key")) 4058 Opts.setSignReturnAddressKey( 4059 LangOptions::SignReturnAddressKeyKind::AKey); 4060 else if (SignKey.equals_insensitive("b_key")) 4061 Opts.setSignReturnAddressKey( 4062 LangOptions::SignReturnAddressKeyKind::BKey); 4063 else 4064 Diags.Report(diag::err_drv_invalid_value) 4065 << A->getAsString(Args) << SignKey; 4066 } 4067 } 4068 } 4069 4070 // The value can be empty, which indicates the system default should be used. 4071 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4072 if (!CXXABI.empty()) { 4073 if (!TargetCXXABI::isABI(CXXABI)) { 4074 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4075 } else { 4076 auto Kind = TargetCXXABI::getKind(CXXABI); 4077 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4078 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4079 else 4080 Opts.CXXABI = Kind; 4081 } 4082 } 4083 4084 Opts.RelativeCXXABIVTables = 4085 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4086 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4087 TargetCXXABI::usesRelativeVTables(T)); 4088 4089 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4090 auto Split = StringRef(A).split('='); 4091 Opts.MacroPrefixMap.insert( 4092 {std::string(Split.first), std::string(Split.second)}); 4093 } 4094 4095 Opts.UseTargetPathSeparator = 4096 !Args.getLastArg(OPT_fno_file_reproducible) && 4097 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4098 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4099 Args.getLastArg(OPT_ffile_reproducible)); 4100 4101 // Error if -mvscale-min is unbounded. 4102 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4103 unsigned VScaleMin; 4104 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4105 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4106 } 4107 4108 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4109 std::ifstream SeedFile(A->getValue(0)); 4110 4111 if (!SeedFile.is_open()) 4112 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4113 << A->getValue(0); 4114 4115 std::getline(SeedFile, Opts.RandstructSeed); 4116 } 4117 4118 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4119 Opts.RandstructSeed = A->getValue(0); 4120 4121 // Validate options for HLSL 4122 if (Opts.HLSL) { 4123 bool SupportedTarget = T.getArch() == llvm::Triple::dxil && 4124 T.getOS() == llvm::Triple::ShaderModel; 4125 if (!SupportedTarget) 4126 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4127 } 4128 4129 return Diags.getNumErrors() == NumErrorsBefore; 4130 } 4131 4132 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4133 switch (Action) { 4134 case frontend::ASTDeclList: 4135 case frontend::ASTDump: 4136 case frontend::ASTPrint: 4137 case frontend::ASTView: 4138 case frontend::EmitAssembly: 4139 case frontend::EmitBC: 4140 case frontend::EmitHTML: 4141 case frontend::EmitLLVM: 4142 case frontend::EmitLLVMOnly: 4143 case frontend::EmitCodeGenOnly: 4144 case frontend::EmitObj: 4145 case frontend::ExtractAPI: 4146 case frontend::FixIt: 4147 case frontend::GenerateModule: 4148 case frontend::GenerateModuleInterface: 4149 case frontend::GenerateHeaderUnit: 4150 case frontend::GeneratePCH: 4151 case frontend::GenerateInterfaceStubs: 4152 case frontend::ParseSyntaxOnly: 4153 case frontend::ModuleFileInfo: 4154 case frontend::VerifyPCH: 4155 case frontend::PluginAction: 4156 case frontend::RewriteObjC: 4157 case frontend::RewriteTest: 4158 case frontend::RunAnalysis: 4159 case frontend::TemplightDump: 4160 case frontend::MigrateSource: 4161 return false; 4162 4163 case frontend::DumpCompilerOptions: 4164 case frontend::DumpRawTokens: 4165 case frontend::DumpTokens: 4166 case frontend::InitOnly: 4167 case frontend::PrintPreamble: 4168 case frontend::PrintPreprocessedInput: 4169 case frontend::RewriteMacros: 4170 case frontend::RunPreprocessorOnly: 4171 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4172 return true; 4173 } 4174 llvm_unreachable("invalid frontend action"); 4175 } 4176 4177 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4178 SmallVectorImpl<const char *> &Args, 4179 CompilerInvocation::StringAllocator SA, 4180 const LangOptions &LangOpts, 4181 const FrontendOptions &FrontendOpts, 4182 const CodeGenOptions &CodeGenOpts) { 4183 PreprocessorOptions *PreprocessorOpts = &Opts; 4184 4185 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4186 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4187 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4188 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4189 MERGER, EXTRACTOR, TABLE_INDEX) \ 4190 GENERATE_OPTION_WITH_MARSHALLING( \ 4191 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4192 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4193 #include "clang/Driver/Options.inc" 4194 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4195 4196 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4197 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4198 4199 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4200 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4201 4202 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4203 GenerateArg(Args, OPT_preamble_bytes_EQ, 4204 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4205 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4206 SA); 4207 4208 for (const auto &M : Opts.Macros) { 4209 // Don't generate __CET__ macro definitions. They are implied by the 4210 // -fcf-protection option that is generated elsewhere. 4211 if (M.first == "__CET__=1" && !M.second && 4212 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4213 continue; 4214 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4215 !CodeGenOpts.CFProtectionBranch) 4216 continue; 4217 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4218 CodeGenOpts.CFProtectionBranch) 4219 continue; 4220 4221 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4222 } 4223 4224 for (const auto &I : Opts.Includes) { 4225 // Don't generate OpenCL includes. They are implied by other flags that are 4226 // generated elsewhere. 4227 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4228 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4229 I == "opencl-c.h")) 4230 continue; 4231 // Don't generate HLSL includes. They are implied by other flags that are 4232 // generated elsewhere. 4233 if (LangOpts.HLSL && I == "hlsl.h") 4234 continue; 4235 4236 GenerateArg(Args, OPT_include, I, SA); 4237 } 4238 4239 for (const auto &CI : Opts.ChainedIncludes) 4240 GenerateArg(Args, OPT_chain_include, CI, SA); 4241 4242 for (const auto &RF : Opts.RemappedFiles) 4243 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4244 4245 if (Opts.SourceDateEpoch) 4246 GenerateArg(Args, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch), SA); 4247 4248 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4249 // generated elsewhere. 4250 } 4251 4252 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4253 DiagnosticsEngine &Diags, 4254 frontend::ActionKind Action, 4255 const FrontendOptions &FrontendOpts) { 4256 unsigned NumErrorsBefore = Diags.getNumErrors(); 4257 4258 PreprocessorOptions *PreprocessorOpts = &Opts; 4259 4260 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4261 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4262 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4263 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4264 MERGER, EXTRACTOR, TABLE_INDEX) \ 4265 PARSE_OPTION_WITH_MARSHALLING( \ 4266 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4267 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4268 #include "clang/Driver/Options.inc" 4269 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4270 4271 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4272 Args.hasArg(OPT_pch_through_hdrstop_use); 4273 4274 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4275 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4276 4277 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4278 StringRef Value(A->getValue()); 4279 size_t Comma = Value.find(','); 4280 unsigned Bytes = 0; 4281 unsigned EndOfLine = 0; 4282 4283 if (Comma == StringRef::npos || 4284 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4285 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4286 Diags.Report(diag::err_drv_preamble_format); 4287 else { 4288 Opts.PrecompiledPreambleBytes.first = Bytes; 4289 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4290 } 4291 } 4292 4293 // Add the __CET__ macro if a CFProtection option is set. 4294 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4295 StringRef Name = A->getValue(); 4296 if (Name == "branch") 4297 Opts.addMacroDef("__CET__=1"); 4298 else if (Name == "return") 4299 Opts.addMacroDef("__CET__=2"); 4300 else if (Name == "full") 4301 Opts.addMacroDef("__CET__=3"); 4302 } 4303 4304 // Add macros from the command line. 4305 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4306 if (A->getOption().matches(OPT_D)) 4307 Opts.addMacroDef(A->getValue()); 4308 else 4309 Opts.addMacroUndef(A->getValue()); 4310 } 4311 4312 // Add the ordered list of -includes. 4313 for (const auto *A : Args.filtered(OPT_include)) 4314 Opts.Includes.emplace_back(A->getValue()); 4315 4316 for (const auto *A : Args.filtered(OPT_chain_include)) 4317 Opts.ChainedIncludes.emplace_back(A->getValue()); 4318 4319 for (const auto *A : Args.filtered(OPT_remap_file)) { 4320 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4321 4322 if (Split.second.empty()) { 4323 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4324 continue; 4325 } 4326 4327 Opts.addRemappedFile(Split.first, Split.second); 4328 } 4329 4330 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4331 StringRef Epoch = A->getValue(); 4332 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4333 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4334 // 9999-12-31T23:59:59Z) as the upper bound. 4335 const uint64_t MaxTimestamp = 4336 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4337 uint64_t V; 4338 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4339 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4340 << Epoch << MaxTimestamp; 4341 } else { 4342 Opts.SourceDateEpoch = V; 4343 } 4344 } 4345 4346 // Always avoid lexing editor placeholders when we're just running the 4347 // preprocessor as we never want to emit the 4348 // "editor placeholder in source file" error in PP only mode. 4349 if (isStrictlyPreprocessorAction(Action)) 4350 Opts.LexEditorPlaceholders = false; 4351 4352 return Diags.getNumErrors() == NumErrorsBefore; 4353 } 4354 4355 static void GeneratePreprocessorOutputArgs( 4356 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4357 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4358 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4359 4360 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4361 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4362 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4363 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4364 MERGER, EXTRACTOR, TABLE_INDEX) \ 4365 GENERATE_OPTION_WITH_MARSHALLING( \ 4366 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4367 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4368 #include "clang/Driver/Options.inc" 4369 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4370 4371 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4372 if (Generate_dM) 4373 GenerateArg(Args, OPT_dM, SA); 4374 if (!Generate_dM && Opts.ShowMacros) 4375 GenerateArg(Args, OPT_dD, SA); 4376 if (Opts.DirectivesOnly) 4377 GenerateArg(Args, OPT_fdirectives_only, SA); 4378 } 4379 4380 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4381 ArgList &Args, DiagnosticsEngine &Diags, 4382 frontend::ActionKind Action) { 4383 unsigned NumErrorsBefore = Diags.getNumErrors(); 4384 4385 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4386 4387 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4388 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4389 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4390 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4391 MERGER, EXTRACTOR, TABLE_INDEX) \ 4392 PARSE_OPTION_WITH_MARSHALLING( \ 4393 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4394 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4395 #include "clang/Driver/Options.inc" 4396 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4397 4398 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4399 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4400 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4401 4402 return Diags.getNumErrors() == NumErrorsBefore; 4403 } 4404 4405 static void GenerateTargetArgs(const TargetOptions &Opts, 4406 SmallVectorImpl<const char *> &Args, 4407 CompilerInvocation::StringAllocator SA) { 4408 const TargetOptions *TargetOpts = &Opts; 4409 #define TARGET_OPTION_WITH_MARSHALLING( \ 4410 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4411 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4412 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4413 MERGER, EXTRACTOR, TABLE_INDEX) \ 4414 GENERATE_OPTION_WITH_MARSHALLING( \ 4415 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4416 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4417 #include "clang/Driver/Options.inc" 4418 #undef TARGET_OPTION_WITH_MARSHALLING 4419 4420 if (!Opts.SDKVersion.empty()) 4421 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4422 SA); 4423 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4424 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4425 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4426 } 4427 4428 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4429 DiagnosticsEngine &Diags) { 4430 unsigned NumErrorsBefore = Diags.getNumErrors(); 4431 4432 TargetOptions *TargetOpts = &Opts; 4433 4434 #define TARGET_OPTION_WITH_MARSHALLING( \ 4435 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4436 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4437 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4438 MERGER, EXTRACTOR, TABLE_INDEX) \ 4439 PARSE_OPTION_WITH_MARSHALLING( \ 4440 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4441 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4442 #include "clang/Driver/Options.inc" 4443 #undef TARGET_OPTION_WITH_MARSHALLING 4444 4445 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4446 llvm::VersionTuple Version; 4447 if (Version.tryParse(A->getValue())) 4448 Diags.Report(diag::err_drv_invalid_value) 4449 << A->getAsString(Args) << A->getValue(); 4450 else 4451 Opts.SDKVersion = Version; 4452 } 4453 if (Arg *A = 4454 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4455 llvm::VersionTuple Version; 4456 if (Version.tryParse(A->getValue())) 4457 Diags.Report(diag::err_drv_invalid_value) 4458 << A->getAsString(Args) << A->getValue(); 4459 else 4460 Opts.DarwinTargetVariantSDKVersion = Version; 4461 } 4462 4463 return Diags.getNumErrors() == NumErrorsBefore; 4464 } 4465 4466 bool CompilerInvocation::CreateFromArgsImpl( 4467 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4468 DiagnosticsEngine &Diags, const char *Argv0) { 4469 unsigned NumErrorsBefore = Diags.getNumErrors(); 4470 4471 // Parse the arguments. 4472 const OptTable &Opts = getDriverOptTable(); 4473 const unsigned IncludedFlagsBitmask = options::CC1Option; 4474 unsigned MissingArgIndex, MissingArgCount; 4475 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4476 MissingArgCount, IncludedFlagsBitmask); 4477 LangOptions &LangOpts = *Res.getLangOpts(); 4478 4479 // Check for missing argument error. 4480 if (MissingArgCount) 4481 Diags.Report(diag::err_drv_missing_argument) 4482 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4483 4484 // Issue errors on unknown arguments. 4485 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4486 auto ArgString = A->getAsString(Args); 4487 std::string Nearest; 4488 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4489 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4490 else 4491 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4492 << ArgString << Nearest; 4493 } 4494 4495 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4496 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4497 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4498 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4499 /*DefaultDiagColor=*/false); 4500 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4501 // FIXME: We shouldn't have to pass the DashX option around here 4502 InputKind DashX = Res.getFrontendOpts().DashX; 4503 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4504 llvm::Triple T(Res.getTargetOpts().Triple); 4505 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4506 Res.getFileSystemOpts().WorkingDir); 4507 4508 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4509 Diags); 4510 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4511 LangOpts.ObjCExceptions = 1; 4512 4513 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4514 if (Warning == "misexpect" && 4515 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4516 Res.getCodeGenOpts().MisExpect = true; 4517 } 4518 } 4519 4520 if (LangOpts.CUDA) { 4521 // During CUDA device-side compilation, the aux triple is the 4522 // triple used for host compilation. 4523 if (LangOpts.CUDAIsDevice) 4524 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4525 } 4526 4527 // Set the triple of the host for OpenMP device compile. 4528 if (LangOpts.OpenMPIsDevice) 4529 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4530 4531 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4532 Res.getFrontendOpts().OutputFile, LangOpts); 4533 4534 // FIXME: Override value name discarding when asan or msan is used because the 4535 // backend passes depend on the name of the alloca in order to print out 4536 // names. 4537 Res.getCodeGenOpts().DiscardValueNames &= 4538 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4539 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4540 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4541 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4542 4543 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4544 Res.getFrontendOpts().ProgramAction, 4545 Res.getFrontendOpts()); 4546 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4547 Res.getFrontendOpts().ProgramAction); 4548 4549 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4550 Res.getFrontendOpts().ProgramAction, 4551 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4552 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4553 Res.getDependencyOutputOpts().Targets.empty()) 4554 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4555 4556 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4557 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4558 !Res.getLangOpts()->Sanitize.empty()) { 4559 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4560 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4561 } 4562 4563 // Store the command-line for using in the CodeView backend. 4564 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4565 Res.getCodeGenOpts().Argv0 = Argv0; 4566 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4567 } 4568 4569 FixupInvocation(Res, Diags, Args, DashX); 4570 4571 return Diags.getNumErrors() == NumErrorsBefore; 4572 } 4573 4574 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4575 ArrayRef<const char *> CommandLineArgs, 4576 DiagnosticsEngine &Diags, 4577 const char *Argv0) { 4578 CompilerInvocation DummyInvocation; 4579 4580 return RoundTrip( 4581 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4582 DiagnosticsEngine &Diags, const char *Argv0) { 4583 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4584 }, 4585 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4586 StringAllocator SA) { 4587 Args.push_back("-cc1"); 4588 Invocation.generateCC1CommandLine(Args, SA); 4589 }, 4590 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4591 } 4592 4593 std::string CompilerInvocation::getModuleHash() const { 4594 // FIXME: Consider using SHA1 instead of MD5. 4595 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4596 4597 // Note: For QoI reasons, the things we use as a hash here should all be 4598 // dumped via the -module-info flag. 4599 4600 // Start the signature with the compiler version. 4601 HBuilder.add(getClangFullRepositoryVersion()); 4602 4603 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4604 // and getClangFullRepositoryVersion() doesn't include git revision. 4605 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4606 4607 // Extend the signature with the language options 4608 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4609 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4610 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4611 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4612 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4613 #include "clang/Basic/LangOptions.def" 4614 4615 HBuilder.addRange(LangOpts->ModuleFeatures); 4616 4617 HBuilder.add(LangOpts->ObjCRuntime); 4618 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4619 4620 // Extend the signature with the target options. 4621 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4622 TargetOpts->ABI); 4623 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4624 4625 // Extend the signature with preprocessor options. 4626 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4627 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4628 4629 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4630 for (const auto &Macro : getPreprocessorOpts().Macros) { 4631 // If we're supposed to ignore this macro for the purposes of modules, 4632 // don't put it into the hash. 4633 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4634 // Check whether we're ignoring this macro. 4635 StringRef MacroDef = Macro.first; 4636 if (hsOpts.ModulesIgnoreMacros.count( 4637 llvm::CachedHashString(MacroDef.split('=').first))) 4638 continue; 4639 } 4640 4641 HBuilder.add(Macro); 4642 } 4643 4644 // Extend the signature with the sysroot and other header search options. 4645 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4646 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4647 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4648 hsOpts.ModulesValidateDiagnosticOptions); 4649 HBuilder.add(hsOpts.ResourceDir); 4650 4651 if (hsOpts.ModulesStrictContextHash) { 4652 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4653 HBuilder.addRange(hsOpts.UserEntries); 4654 4655 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4656 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4657 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4658 HBuilder.add(diagOpts.get##Name()); 4659 #include "clang/Basic/DiagnosticOptions.def" 4660 #undef DIAGOPT 4661 #undef ENUM_DIAGOPT 4662 } 4663 4664 // Extend the signature with the user build path. 4665 HBuilder.add(hsOpts.ModuleUserBuildPath); 4666 4667 // Extend the signature with the module file extensions. 4668 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4669 ext->hashExtension(HBuilder); 4670 4671 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4672 // affects the debug info in the PCM. 4673 if (getCodeGenOpts().DebugTypeExtRefs) 4674 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4675 4676 // Extend the signature with the enabled sanitizers, if at least one is 4677 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4678 SanitizerSet SanHash = LangOpts->Sanitize; 4679 SanHash.clear(getPPTransparentSanitizers()); 4680 if (!SanHash.empty()) 4681 HBuilder.add(SanHash.Mask); 4682 4683 llvm::MD5::MD5Result Result; 4684 HBuilder.getHasher().final(Result); 4685 uint64_t Hash = Result.high() ^ Result.low(); 4686 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4687 } 4688 4689 void CompilerInvocation::generateCC1CommandLine( 4690 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4691 llvm::Triple T(TargetOpts->Triple); 4692 4693 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4694 GenerateMigratorArgs(MigratorOpts, Args, SA); 4695 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4696 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4697 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4698 GenerateTargetArgs(*TargetOpts, Args, SA); 4699 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4700 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4701 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4702 &*LangOpts); 4703 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4704 CodeGenOpts); 4705 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4706 FrontendOpts.ProgramAction); 4707 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4708 } 4709 4710 std::vector<std::string> CompilerInvocation::getCC1CommandLine() const { 4711 // Set up string allocator. 4712 llvm::BumpPtrAllocator Alloc; 4713 llvm::StringSaver Strings(Alloc); 4714 auto SA = [&Strings](const Twine &Arg) { return Strings.save(Arg).data(); }; 4715 4716 // Synthesize full command line from the CompilerInvocation, including "-cc1". 4717 SmallVector<const char *, 32> Args{"-cc1"}; 4718 generateCC1CommandLine(Args, SA); 4719 4720 // Convert arguments to the return type. 4721 return std::vector<std::string>{Args.begin(), Args.end()}; 4722 } 4723 4724 void CompilerInvocation::resetNonModularOptions() { 4725 getLangOpts()->resetNonModularOptions(); 4726 getPreprocessorOpts().resetNonModularOptions(); 4727 } 4728 4729 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4730 getLangOpts()->ImplicitModules = false; 4731 getHeaderSearchOpts().ImplicitModuleMaps = false; 4732 getHeaderSearchOpts().ModuleCachePath.clear(); 4733 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4734 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4735 // The specific values we canonicalize to for pruning don't affect behaviour, 4736 /// so use the default values so they may be dropped from the command-line. 4737 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4738 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 4739 } 4740 4741 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4742 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4743 DiagnosticsEngine &Diags) { 4744 return createVFSFromCompilerInvocation(CI, Diags, 4745 llvm::vfs::getRealFileSystem()); 4746 } 4747 4748 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4749 clang::createVFSFromCompilerInvocation( 4750 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4751 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4752 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 4753 Diags, std::move(BaseFS)); 4754 } 4755 4756 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 4757 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 4758 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4759 if (VFSOverlayFiles.empty()) 4760 return BaseFS; 4761 4762 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4763 // earlier vfs files are on the bottom 4764 for (const auto &File : VFSOverlayFiles) { 4765 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4766 Result->getBufferForFile(File); 4767 if (!Buffer) { 4768 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4769 continue; 4770 } 4771 4772 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4773 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4774 /*DiagContext*/ nullptr, Result); 4775 if (!FS) { 4776 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4777 continue; 4778 } 4779 4780 Result = FS; 4781 } 4782 return Result; 4783 } 4784