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 <memory> 98 #include <string> 99 #include <tuple> 100 #include <type_traits> 101 #include <utility> 102 #include <vector> 103 104 using namespace clang; 105 using namespace driver; 106 using namespace options; 107 using namespace llvm::opt; 108 109 //===----------------------------------------------------------------------===// 110 // Helpers. 111 //===----------------------------------------------------------------------===// 112 113 // Parse misexpect tolerance argument value. 114 // Valid option values are integers in the range [0, 100) 115 inline Expected<Optional<uint64_t>> parseToleranceOption(StringRef Arg) { 116 int64_t Val; 117 if (Arg.getAsInteger(10, Val)) 118 return llvm::createStringError(llvm::inconvertibleErrorCode(), 119 "Not an integer: %s", Arg.data()); 120 return Val; 121 } 122 123 //===----------------------------------------------------------------------===// 124 // Initialization. 125 //===----------------------------------------------------------------------===// 126 127 CompilerInvocationRefBase::CompilerInvocationRefBase() 128 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 129 DiagnosticOpts(new DiagnosticOptions()), 130 HeaderSearchOpts(new HeaderSearchOptions()), 131 PreprocessorOpts(new PreprocessorOptions()), 132 AnalyzerOpts(new AnalyzerOptions()) {} 133 134 CompilerInvocationRefBase::CompilerInvocationRefBase( 135 const CompilerInvocationRefBase &X) 136 : LangOpts(new LangOptions(*X.getLangOpts())), 137 TargetOpts(new TargetOptions(X.getTargetOpts())), 138 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 139 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 140 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 141 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 142 143 CompilerInvocationRefBase::CompilerInvocationRefBase( 144 CompilerInvocationRefBase &&X) = default; 145 146 CompilerInvocationRefBase & 147 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 148 LangOpts.swap(X.LangOpts); 149 TargetOpts.swap(X.TargetOpts); 150 DiagnosticOpts.swap(X.DiagnosticOpts); 151 HeaderSearchOpts.swap(X.HeaderSearchOpts); 152 PreprocessorOpts.swap(X.PreprocessorOpts); 153 AnalyzerOpts.swap(X.AnalyzerOpts); 154 return *this; 155 } 156 157 CompilerInvocationRefBase & 158 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 159 160 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 161 162 //===----------------------------------------------------------------------===// 163 // Normalizers 164 //===----------------------------------------------------------------------===// 165 166 #define SIMPLE_ENUM_VALUE_TABLE 167 #include "clang/Driver/Options.inc" 168 #undef SIMPLE_ENUM_VALUE_TABLE 169 170 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 171 unsigned TableIndex, 172 const ArgList &Args, 173 DiagnosticsEngine &Diags) { 174 if (Args.hasArg(Opt)) 175 return true; 176 return None; 177 } 178 179 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 180 const ArgList &Args, 181 DiagnosticsEngine &) { 182 if (Args.hasArg(Opt)) 183 return false; 184 return None; 185 } 186 187 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 188 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 189 /// unnecessary template instantiations and just ignore it with a variadic 190 /// argument. 191 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 192 const char *Spelling, 193 CompilerInvocation::StringAllocator, 194 Option::OptionClass, unsigned, /*T*/...) { 195 Args.push_back(Spelling); 196 } 197 198 template <typename T> static constexpr bool is_uint64_t_convertible() { 199 return !std::is_same<T, uint64_t>::value && 200 llvm::is_integral_or_enum<T>::value; 201 } 202 203 template <typename T, 204 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 205 static auto makeFlagToValueNormalizer(T Value) { 206 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 207 DiagnosticsEngine &) -> Optional<T> { 208 if (Args.hasArg(Opt)) 209 return Value; 210 return None; 211 }; 212 } 213 214 template <typename T, 215 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 216 static auto makeFlagToValueNormalizer(T Value) { 217 return makeFlagToValueNormalizer(uint64_t(Value)); 218 } 219 220 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 221 OptSpecifier OtherOpt) { 222 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 223 const ArgList &Args, 224 DiagnosticsEngine &) -> Optional<bool> { 225 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 226 return A->getOption().matches(Opt) ? Value : OtherValue; 227 } 228 return None; 229 }; 230 } 231 232 static auto makeBooleanOptionDenormalizer(bool Value) { 233 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 234 CompilerInvocation::StringAllocator, Option::OptionClass, 235 unsigned, bool KeyPath) { 236 if (KeyPath == Value) 237 Args.push_back(Spelling); 238 }; 239 } 240 241 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 242 const char *Spelling, 243 CompilerInvocation::StringAllocator SA, 244 Option::OptionClass OptClass, unsigned, 245 const Twine &Value) { 246 switch (OptClass) { 247 case Option::SeparateClass: 248 case Option::JoinedOrSeparateClass: 249 case Option::JoinedAndSeparateClass: 250 Args.push_back(Spelling); 251 Args.push_back(SA(Value)); 252 break; 253 case Option::JoinedClass: 254 case Option::CommaJoinedClass: 255 Args.push_back(SA(Twine(Spelling) + Value)); 256 break; 257 default: 258 llvm_unreachable("Cannot denormalize an option with option class " 259 "incompatible with string denormalization."); 260 } 261 } 262 263 template <typename T> 264 static void 265 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 266 CompilerInvocation::StringAllocator SA, 267 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 268 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 269 } 270 271 static Optional<SimpleEnumValue> 272 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 273 for (int I = 0, E = Table.Size; I != E; ++I) 274 if (Name == Table.Table[I].Name) 275 return Table.Table[I]; 276 277 return None; 278 } 279 280 static Optional<SimpleEnumValue> 281 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 282 for (int I = 0, E = Table.Size; I != E; ++I) 283 if (Value == Table.Table[I].Value) 284 return Table.Table[I]; 285 286 return None; 287 } 288 289 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 290 unsigned TableIndex, 291 const ArgList &Args, 292 DiagnosticsEngine &Diags) { 293 assert(TableIndex < SimpleEnumValueTablesSize); 294 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 295 296 auto *Arg = Args.getLastArg(Opt); 297 if (!Arg) 298 return None; 299 300 StringRef ArgValue = Arg->getValue(); 301 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 302 return MaybeEnumVal->Value; 303 304 Diags.Report(diag::err_drv_invalid_value) 305 << Arg->getAsString(Args) << ArgValue; 306 return None; 307 } 308 309 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 310 const char *Spelling, 311 CompilerInvocation::StringAllocator SA, 312 Option::OptionClass OptClass, 313 unsigned TableIndex, unsigned Value) { 314 assert(TableIndex < SimpleEnumValueTablesSize); 315 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 316 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 317 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 318 MaybeEnumVal->Name); 319 } else { 320 llvm_unreachable("The simple enum value was not correctly defined in " 321 "the tablegen option description"); 322 } 323 } 324 325 template <typename T> 326 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 327 const char *Spelling, 328 CompilerInvocation::StringAllocator SA, 329 Option::OptionClass OptClass, 330 unsigned TableIndex, T Value) { 331 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 332 static_cast<unsigned>(Value)); 333 } 334 335 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 336 const ArgList &Args, 337 DiagnosticsEngine &Diags) { 338 auto *Arg = Args.getLastArg(Opt); 339 if (!Arg) 340 return None; 341 return std::string(Arg->getValue()); 342 } 343 344 template <typename IntTy> 345 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 346 const ArgList &Args, 347 DiagnosticsEngine &Diags) { 348 auto *Arg = Args.getLastArg(Opt); 349 if (!Arg) 350 return None; 351 IntTy Res; 352 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 353 Diags.Report(diag::err_drv_invalid_int_value) 354 << Arg->getAsString(Args) << Arg->getValue(); 355 return None; 356 } 357 return Res; 358 } 359 360 static Optional<std::vector<std::string>> 361 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 362 DiagnosticsEngine &) { 363 return Args.getAllArgValues(Opt); 364 } 365 366 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 367 const char *Spelling, 368 CompilerInvocation::StringAllocator SA, 369 Option::OptionClass OptClass, 370 unsigned TableIndex, 371 const std::vector<std::string> &Values) { 372 switch (OptClass) { 373 case Option::CommaJoinedClass: { 374 std::string CommaJoinedValue; 375 if (!Values.empty()) { 376 CommaJoinedValue.append(Values.front()); 377 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 378 CommaJoinedValue.append(","); 379 CommaJoinedValue.append(Value); 380 } 381 } 382 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 383 TableIndex, CommaJoinedValue); 384 break; 385 } 386 case Option::JoinedClass: 387 case Option::SeparateClass: 388 case Option::JoinedOrSeparateClass: 389 for (const std::string &Value : Values) 390 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 391 break; 392 default: 393 llvm_unreachable("Cannot denormalize an option with option class " 394 "incompatible with string vector denormalization."); 395 } 396 } 397 398 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 399 const ArgList &Args, 400 DiagnosticsEngine &Diags) { 401 auto *Arg = Args.getLastArg(Opt); 402 if (!Arg) 403 return None; 404 return llvm::Triple::normalize(Arg->getValue()); 405 } 406 407 template <typename T, typename U> 408 static T mergeForwardValue(T KeyPath, U Value) { 409 return static_cast<T>(Value); 410 } 411 412 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 413 return KeyPath | Value; 414 } 415 416 template <typename T> static T extractForwardValue(T KeyPath) { 417 return KeyPath; 418 } 419 420 template <typename T, typename U, U Value> 421 static T extractMaskValue(T KeyPath) { 422 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 423 } 424 425 #define PARSE_OPTION_WITH_MARSHALLING( \ 426 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 427 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 428 if ((FLAGS)&options::CC1Option) { \ 429 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 430 if (IMPLIED_CHECK) \ 431 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 432 if (SHOULD_PARSE) \ 433 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 434 KEYPATH = \ 435 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 436 } 437 438 // Capture the extracted value as a lambda argument to avoid potential issues 439 // with lifetime extension of the reference. 440 #define GENERATE_OPTION_WITH_MARSHALLING( \ 441 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 442 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 443 TABLE_INDEX) \ 444 if ((FLAGS)&options::CC1Option) { \ 445 [&](const auto &Extracted) { \ 446 if (ALWAYS_EMIT || \ 447 (Extracted != \ 448 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 449 : (DEFAULT_VALUE)))) \ 450 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 451 TABLE_INDEX, Extracted); \ 452 }(EXTRACTOR(KEYPATH)); \ 453 } 454 455 static StringRef GetInputKindName(InputKind IK); 456 457 static bool FixupInvocation(CompilerInvocation &Invocation, 458 DiagnosticsEngine &Diags, const ArgList &Args, 459 InputKind IK) { 460 unsigned NumErrorsBefore = Diags.getNumErrors(); 461 462 LangOptions &LangOpts = *Invocation.getLangOpts(); 463 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 464 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 465 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 466 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 467 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 468 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 469 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 470 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 471 if (FrontendOpts.ShowStats) 472 CodeGenOpts.ClearASTBeforeBackend = false; 473 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 474 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 475 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 476 LangOpts.CurrentModule = LangOpts.ModuleName; 477 478 llvm::Triple T(TargetOpts.Triple); 479 llvm::Triple::ArchType Arch = T.getArch(); 480 481 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 482 483 if (LangOpts.getExceptionHandling() != 484 LangOptions::ExceptionHandlingKind::None && 485 T.isWindowsMSVCEnvironment()) 486 Diags.Report(diag::err_fe_invalid_exception_model) 487 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 488 489 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 490 Diags.Report(diag::warn_c_kext); 491 492 if (Args.hasArg(OPT_fconcepts_ts)) 493 Diags.Report(diag::warn_fe_concepts_ts_flag); 494 495 if (LangOpts.NewAlignOverride && 496 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 497 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 498 Diags.Report(diag::err_fe_invalid_alignment) 499 << A->getAsString(Args) << A->getValue(); 500 LangOpts.NewAlignOverride = 0; 501 } 502 503 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 504 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 505 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 506 << "-fsycl-is-host"; 507 508 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 509 Diags.Report(diag::err_drv_argument_not_allowed_with) 510 << "-fgnu89-inline" << GetInputKindName(IK); 511 512 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 513 Diags.Report(diag::warn_ignored_hip_only_option) 514 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 515 516 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 517 Diags.Report(diag::warn_ignored_hip_only_option) 518 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 519 520 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 521 // This option should be deprecated for CL > 1.0 because 522 // this option was added for compatibility with OpenCL 1.0. 523 if (Args.getLastArg(OPT_cl_strict_aliasing) && 524 (LangOpts.getOpenCLCompatibleVersion() > 100)) 525 Diags.Report(diag::warn_option_invalid_ocl_version) 526 << LangOpts.getOpenCLVersionString() 527 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 528 529 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 530 auto DefaultCC = LangOpts.getDefaultCallingConv(); 531 532 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 533 DefaultCC == LangOptions::DCC_StdCall) && 534 Arch != llvm::Triple::x86; 535 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 536 DefaultCC == LangOptions::DCC_RegCall) && 537 !T.isX86(); 538 if (emitError) 539 Diags.Report(diag::err_drv_argument_not_allowed_with) 540 << A->getSpelling() << T.getTriple(); 541 } 542 543 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 544 Diags.Report(diag::err_drv_argument_only_allowed_with) 545 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 546 << "-fno-legacy-pass-manager"; 547 548 return Diags.getNumErrors() == NumErrorsBefore; 549 } 550 551 //===----------------------------------------------------------------------===// 552 // Deserialization (from args) 553 //===----------------------------------------------------------------------===// 554 555 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 556 DiagnosticsEngine &Diags) { 557 unsigned DefaultOpt = llvm::CodeGenOpt::None; 558 if ((IK.getLanguage() == Language::OpenCL || 559 IK.getLanguage() == Language::OpenCLCXX) && 560 !Args.hasArg(OPT_cl_opt_disable)) 561 DefaultOpt = llvm::CodeGenOpt::Default; 562 563 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 564 if (A->getOption().matches(options::OPT_O0)) 565 return llvm::CodeGenOpt::None; 566 567 if (A->getOption().matches(options::OPT_Ofast)) 568 return llvm::CodeGenOpt::Aggressive; 569 570 assert(A->getOption().matches(options::OPT_O)); 571 572 StringRef S(A->getValue()); 573 if (S == "s" || S == "z") 574 return llvm::CodeGenOpt::Default; 575 576 if (S == "g") 577 return llvm::CodeGenOpt::Less; 578 579 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 580 } 581 582 return DefaultOpt; 583 } 584 585 static unsigned getOptimizationLevelSize(ArgList &Args) { 586 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 587 if (A->getOption().matches(options::OPT_O)) { 588 switch (A->getValue()[0]) { 589 default: 590 return 0; 591 case 's': 592 return 1; 593 case 'z': 594 return 2; 595 } 596 } 597 } 598 return 0; 599 } 600 601 static void GenerateArg(SmallVectorImpl<const char *> &Args, 602 llvm::opt::OptSpecifier OptSpecifier, 603 CompilerInvocation::StringAllocator SA) { 604 Option Opt = getDriverOptTable().getOption(OptSpecifier); 605 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 606 Option::OptionClass::FlagClass, 0); 607 } 608 609 static void GenerateArg(SmallVectorImpl<const char *> &Args, 610 llvm::opt::OptSpecifier OptSpecifier, 611 const Twine &Value, 612 CompilerInvocation::StringAllocator SA) { 613 Option Opt = getDriverOptTable().getOption(OptSpecifier); 614 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 615 Opt.getKind(), 0, Value); 616 } 617 618 // Parse command line arguments into CompilerInvocation. 619 using ParseFn = 620 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 621 DiagnosticsEngine &, const char *)>; 622 623 // Generate command line arguments from CompilerInvocation. 624 using GenerateFn = llvm::function_ref<void( 625 CompilerInvocation &, SmallVectorImpl<const char *> &, 626 CompilerInvocation::StringAllocator)>; 627 628 // May perform round-trip of command line arguments. By default, the round-trip 629 // is enabled in assert builds. This can be overwritten at run-time via the 630 // "-round-trip-args" and "-no-round-trip-args" command line flags. 631 // During round-trip, the command line arguments are parsed into a dummy 632 // instance of CompilerInvocation which is used to generate the command line 633 // arguments again. The real CompilerInvocation instance is then created by 634 // parsing the generated arguments, not the original ones. 635 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 636 CompilerInvocation &RealInvocation, 637 CompilerInvocation &DummyInvocation, 638 ArrayRef<const char *> CommandLineArgs, 639 DiagnosticsEngine &Diags, const char *Argv0) { 640 #ifndef NDEBUG 641 bool DoRoundTripDefault = true; 642 #else 643 bool DoRoundTripDefault = false; 644 #endif 645 646 bool DoRoundTrip = DoRoundTripDefault; 647 for (const auto *Arg : CommandLineArgs) { 648 if (Arg == StringRef("-round-trip-args")) 649 DoRoundTrip = true; 650 if (Arg == StringRef("-no-round-trip-args")) 651 DoRoundTrip = false; 652 } 653 654 // If round-trip was not requested, simply run the parser with the real 655 // invocation diagnostics. 656 if (!DoRoundTrip) 657 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 658 659 // Serializes quoted (and potentially escaped) arguments. 660 auto SerializeArgs = [](ArrayRef<const char *> Args) { 661 std::string Buffer; 662 llvm::raw_string_ostream OS(Buffer); 663 for (const char *Arg : Args) { 664 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 665 OS << ' '; 666 } 667 OS.flush(); 668 return Buffer; 669 }; 670 671 // Setup a dummy DiagnosticsEngine. 672 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 673 DummyDiags.setClient(new TextDiagnosticBuffer()); 674 675 // Run the first parse on the original arguments with the dummy invocation and 676 // diagnostics. 677 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 678 DummyDiags.getNumWarnings() != 0) { 679 // If the first parse did not succeed, it must be user mistake (invalid 680 // command line arguments). We won't be able to generate arguments that 681 // would reproduce the same result. Let's fail again with the real 682 // invocation and diagnostics, so all side-effects of parsing are visible. 683 unsigned NumWarningsBefore = Diags.getNumWarnings(); 684 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 685 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 686 return Success; 687 688 // Parse with original options and diagnostics succeeded even though it 689 // shouldn't have. Something is off. 690 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 691 Diags.Report(diag::note_cc1_round_trip_original) 692 << SerializeArgs(CommandLineArgs); 693 return false; 694 } 695 696 // Setup string allocator. 697 llvm::BumpPtrAllocator Alloc; 698 llvm::StringSaver StringPool(Alloc); 699 auto SA = [&StringPool](const Twine &Arg) { 700 return StringPool.save(Arg).data(); 701 }; 702 703 // Generate arguments from the dummy invocation. If Generate is the 704 // inverse of Parse, the newly generated arguments must have the same 705 // semantics as the original. 706 SmallVector<const char *> GeneratedArgs1; 707 Generate(DummyInvocation, GeneratedArgs1, SA); 708 709 // Run the second parse, now on the generated arguments, and with the real 710 // invocation and diagnostics. The result is what we will end up using for the 711 // rest of compilation, so if Generate is not inverse of Parse, something down 712 // the line will break. 713 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 714 715 // The first parse on original arguments succeeded, but second parse of 716 // generated arguments failed. Something must be wrong with the generator. 717 if (!Success2) { 718 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 719 Diags.Report(diag::note_cc1_round_trip_generated) 720 << 1 << SerializeArgs(GeneratedArgs1); 721 return false; 722 } 723 724 // Generate arguments again, this time from the options we will end up using 725 // for the rest of the compilation. 726 SmallVector<const char *> GeneratedArgs2; 727 Generate(RealInvocation, GeneratedArgs2, SA); 728 729 // Compares two lists of generated arguments. 730 auto Equal = [](const ArrayRef<const char *> A, 731 const ArrayRef<const char *> B) { 732 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 733 [](const char *AElem, const char *BElem) { 734 return StringRef(AElem) == StringRef(BElem); 735 }); 736 }; 737 738 // If we generated different arguments from what we assume are two 739 // semantically equivalent CompilerInvocations, the Generate function may 740 // be non-deterministic. 741 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 742 Diags.Report(diag::err_cc1_round_trip_mismatch); 743 Diags.Report(diag::note_cc1_round_trip_generated) 744 << 1 << SerializeArgs(GeneratedArgs1); 745 Diags.Report(diag::note_cc1_round_trip_generated) 746 << 2 << SerializeArgs(GeneratedArgs2); 747 return false; 748 } 749 750 Diags.Report(diag::remark_cc1_round_trip_generated) 751 << 1 << SerializeArgs(GeneratedArgs1); 752 Diags.Report(diag::remark_cc1_round_trip_generated) 753 << 2 << SerializeArgs(GeneratedArgs2); 754 755 return Success2; 756 } 757 758 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 759 OptSpecifier GroupWithValue, 760 std::vector<std::string> &Diagnostics) { 761 for (auto *A : Args.filtered(Group)) { 762 if (A->getOption().getKind() == Option::FlagClass) { 763 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 764 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 765 Diagnostics.push_back( 766 std::string(A->getOption().getName().drop_front(1))); 767 } else if (A->getOption().matches(GroupWithValue)) { 768 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 769 // group. Add only the group name to the diagnostics. 770 Diagnostics.push_back( 771 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 772 } else { 773 // Otherwise, add its value (for OPT_W_Joined and similar). 774 Diagnostics.push_back(A->getValue()); 775 } 776 } 777 } 778 779 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 780 // it won't verify the input. 781 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 782 DiagnosticsEngine *Diags); 783 784 static void getAllNoBuiltinFuncValues(ArgList &Args, 785 std::vector<std::string> &Funcs) { 786 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 787 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 788 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 789 } 790 791 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 792 SmallVectorImpl<const char *> &Args, 793 CompilerInvocation::StringAllocator SA) { 794 const AnalyzerOptions *AnalyzerOpts = &Opts; 795 796 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 797 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 798 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 799 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 800 MERGER, EXTRACTOR, TABLE_INDEX) \ 801 GENERATE_OPTION_WITH_MARSHALLING( \ 802 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 803 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 804 #include "clang/Driver/Options.inc" 805 #undef ANALYZER_OPTION_WITH_MARSHALLING 806 807 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 808 switch (Opts.AnalysisStoreOpt) { 809 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 810 case NAME##Model: \ 811 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 812 break; 813 #include "clang/StaticAnalyzer/Core/Analyses.def" 814 default: 815 llvm_unreachable("Tried to generate unknown analysis store."); 816 } 817 } 818 819 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 820 switch (Opts.AnalysisConstraintsOpt) { 821 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 822 case NAME##Model: \ 823 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 824 break; 825 #include "clang/StaticAnalyzer/Core/Analyses.def" 826 default: 827 llvm_unreachable("Tried to generate unknown analysis constraint."); 828 } 829 } 830 831 if (Opts.AnalysisDiagOpt != PD_HTML) { 832 switch (Opts.AnalysisDiagOpt) { 833 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 834 case PD_##NAME: \ 835 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 836 break; 837 #include "clang/StaticAnalyzer/Core/Analyses.def" 838 default: 839 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 840 } 841 } 842 843 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 844 switch (Opts.AnalysisPurgeOpt) { 845 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 846 case NAME: \ 847 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 848 break; 849 #include "clang/StaticAnalyzer/Core/Analyses.def" 850 default: 851 llvm_unreachable("Tried to generate unknown analysis purge mode."); 852 } 853 } 854 855 if (Opts.InliningMode != NoRedundancy) { 856 switch (Opts.InliningMode) { 857 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 858 case NAME: \ 859 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 860 break; 861 #include "clang/StaticAnalyzer/Core/Analyses.def" 862 default: 863 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 864 } 865 } 866 867 for (const auto &CP : Opts.CheckersAndPackages) { 868 OptSpecifier Opt = 869 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 870 GenerateArg(Args, Opt, CP.first, SA); 871 } 872 873 AnalyzerOptions ConfigOpts; 874 parseAnalyzerConfigs(ConfigOpts, nullptr); 875 876 for (const auto &C : Opts.Config) { 877 // Don't generate anything that came from parseAnalyzerConfigs. It would be 878 // redundant and may not be valid on the command line. 879 auto Entry = ConfigOpts.Config.find(C.getKey()); 880 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 881 continue; 882 883 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 884 } 885 886 // Nothing to generate for FullCompilerInvocation. 887 } 888 889 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 890 DiagnosticsEngine &Diags) { 891 unsigned NumErrorsBefore = Diags.getNumErrors(); 892 893 AnalyzerOptions *AnalyzerOpts = &Opts; 894 895 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 896 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 897 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 898 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 899 MERGER, EXTRACTOR, TABLE_INDEX) \ 900 PARSE_OPTION_WITH_MARSHALLING( \ 901 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 902 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 903 #include "clang/Driver/Options.inc" 904 #undef ANALYZER_OPTION_WITH_MARSHALLING 905 906 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 907 StringRef Name = A->getValue(); 908 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 909 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 910 .Case(CMDFLAG, NAME##Model) 911 #include "clang/StaticAnalyzer/Core/Analyses.def" 912 .Default(NumStores); 913 if (Value == NumStores) { 914 Diags.Report(diag::err_drv_invalid_value) 915 << A->getAsString(Args) << Name; 916 } else { 917 Opts.AnalysisStoreOpt = Value; 918 } 919 } 920 921 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 922 StringRef Name = A->getValue(); 923 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 924 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 925 .Case(CMDFLAG, NAME##Model) 926 #include "clang/StaticAnalyzer/Core/Analyses.def" 927 .Default(NumConstraints); 928 if (Value == NumConstraints) { 929 Diags.Report(diag::err_drv_invalid_value) 930 << A->getAsString(Args) << Name; 931 } else { 932 #ifndef LLVM_WITH_Z3 933 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 934 Diags.Report(diag::err_analyzer_not_built_with_z3); 935 } 936 #endif // LLVM_WITH_Z3 937 Opts.AnalysisConstraintsOpt = Value; 938 } 939 } 940 941 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 942 StringRef Name = A->getValue(); 943 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 944 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 945 .Case(CMDFLAG, PD_##NAME) 946 #include "clang/StaticAnalyzer/Core/Analyses.def" 947 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 948 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 949 Diags.Report(diag::err_drv_invalid_value) 950 << A->getAsString(Args) << Name; 951 } else { 952 Opts.AnalysisDiagOpt = Value; 953 } 954 } 955 956 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 957 StringRef Name = A->getValue(); 958 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 959 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 960 .Case(CMDFLAG, NAME) 961 #include "clang/StaticAnalyzer/Core/Analyses.def" 962 .Default(NumPurgeModes); 963 if (Value == NumPurgeModes) { 964 Diags.Report(diag::err_drv_invalid_value) 965 << A->getAsString(Args) << Name; 966 } else { 967 Opts.AnalysisPurgeOpt = Value; 968 } 969 } 970 971 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 972 StringRef Name = A->getValue(); 973 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 974 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 975 .Case(CMDFLAG, NAME) 976 #include "clang/StaticAnalyzer/Core/Analyses.def" 977 .Default(NumInliningModes); 978 if (Value == NumInliningModes) { 979 Diags.Report(diag::err_drv_invalid_value) 980 << A->getAsString(Args) << Name; 981 } else { 982 Opts.InliningMode = Value; 983 } 984 } 985 986 Opts.CheckersAndPackages.clear(); 987 for (const Arg *A : 988 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 989 A->claim(); 990 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 991 // We can have a list of comma separated checker names, e.g: 992 // '-analyzer-checker=cocoa,unix' 993 StringRef CheckerAndPackageList = A->getValue(); 994 SmallVector<StringRef, 16> CheckersAndPackages; 995 CheckerAndPackageList.split(CheckersAndPackages, ","); 996 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 997 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 998 IsEnabled); 999 } 1000 1001 // Go through the analyzer configuration options. 1002 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 1003 1004 // We can have a list of comma separated config names, e.g: 1005 // '-analyzer-config key1=val1,key2=val2' 1006 StringRef configList = A->getValue(); 1007 SmallVector<StringRef, 4> configVals; 1008 configList.split(configVals, ","); 1009 for (const auto &configVal : configVals) { 1010 StringRef key, val; 1011 std::tie(key, val) = configVal.split("="); 1012 if (val.empty()) { 1013 Diags.Report(SourceLocation(), 1014 diag::err_analyzer_config_no_value) << configVal; 1015 break; 1016 } 1017 if (val.contains('=')) { 1018 Diags.Report(SourceLocation(), 1019 diag::err_analyzer_config_multiple_values) 1020 << configVal; 1021 break; 1022 } 1023 1024 // TODO: Check checker options too, possibly in CheckerRegistry. 1025 // Leave unknown non-checker configs unclaimed. 1026 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1027 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1028 Diags.Report(diag::err_analyzer_config_unknown) << key; 1029 continue; 1030 } 1031 1032 A->claim(); 1033 Opts.Config[key] = std::string(val); 1034 } 1035 } 1036 1037 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1038 parseAnalyzerConfigs(Opts, &Diags); 1039 else 1040 parseAnalyzerConfigs(Opts, nullptr); 1041 1042 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1043 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1044 if (i != 0) 1045 os << " "; 1046 os << Args.getArgString(i); 1047 } 1048 os.flush(); 1049 1050 return Diags.getNumErrors() == NumErrorsBefore; 1051 } 1052 1053 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1054 StringRef OptionName, StringRef DefaultVal) { 1055 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1056 } 1057 1058 static void initOption(AnalyzerOptions::ConfigTable &Config, 1059 DiagnosticsEngine *Diags, 1060 StringRef &OptionField, StringRef Name, 1061 StringRef DefaultVal) { 1062 // String options may be known to invalid (e.g. if the expected string is a 1063 // file name, but the file does not exist), those will have to be checked in 1064 // parseConfigs. 1065 OptionField = getStringOption(Config, Name, DefaultVal); 1066 } 1067 1068 static void initOption(AnalyzerOptions::ConfigTable &Config, 1069 DiagnosticsEngine *Diags, 1070 bool &OptionField, StringRef Name, bool DefaultVal) { 1071 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1072 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1073 .Case("true", true) 1074 .Case("false", false) 1075 .Default(None); 1076 1077 if (!PossiblyInvalidVal) { 1078 if (Diags) 1079 Diags->Report(diag::err_analyzer_config_invalid_input) 1080 << Name << "a boolean"; 1081 else 1082 OptionField = DefaultVal; 1083 } else 1084 OptionField = PossiblyInvalidVal.getValue(); 1085 } 1086 1087 static void initOption(AnalyzerOptions::ConfigTable &Config, 1088 DiagnosticsEngine *Diags, 1089 unsigned &OptionField, StringRef Name, 1090 unsigned DefaultVal) { 1091 1092 OptionField = DefaultVal; 1093 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1094 .getAsInteger(0, OptionField); 1095 if (Diags && HasFailed) 1096 Diags->Report(diag::err_analyzer_config_invalid_input) 1097 << Name << "an unsigned"; 1098 } 1099 1100 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1101 DiagnosticsEngine *Diags) { 1102 // TODO: There's no need to store the entire configtable, it'd be plenty 1103 // enough tostore checker options. 1104 1105 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1106 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1107 1108 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1109 SHALLOW_VAL, DEEP_VAL) \ 1110 switch (AnOpts.getUserMode()) { \ 1111 case UMK_Shallow: \ 1112 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1113 break; \ 1114 case UMK_Deep: \ 1115 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1116 break; \ 1117 } \ 1118 1119 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1120 #undef ANALYZER_OPTION 1121 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1122 1123 // At this point, AnalyzerOptions is configured. Let's validate some options. 1124 1125 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1126 // The current approach only validates the registered checkers which does not 1127 // contain the runtime enabled checkers and optimally we would validate both. 1128 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1129 std::vector<StringRef> Checkers = 1130 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1131 std::vector<StringRef> Packages = 1132 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1133 1134 SmallVector<StringRef, 16> CheckersAndPackages; 1135 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1136 1137 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1138 if (Diags) { 1139 bool IsChecker = CheckerOrPackage.contains('.'); 1140 bool IsValidName = IsChecker 1141 ? llvm::is_contained(Checkers, CheckerOrPackage) 1142 : llvm::is_contained(Packages, CheckerOrPackage); 1143 1144 if (!IsValidName) 1145 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1146 << CheckerOrPackage; 1147 } 1148 1149 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1150 } 1151 } 1152 1153 if (!Diags) 1154 return; 1155 1156 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1157 Diags->Report(diag::err_analyzer_config_invalid_input) 1158 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1159 1160 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1161 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1162 << "a filename"; 1163 1164 if (!AnOpts.ModelPath.empty() && 1165 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1166 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1167 << "a filename"; 1168 } 1169 1170 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1171 static void 1172 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1173 CompilerInvocation::StringAllocator SA, 1174 OptSpecifier OptEQ, StringRef Name, 1175 const CodeGenOptions::OptRemark &Remark) { 1176 if (Remark.hasValidPattern()) { 1177 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1178 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1179 GenerateArg(Args, OPT_R_Joined, Name, SA); 1180 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1181 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1182 } 1183 } 1184 1185 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1186 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1187 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1188 static CodeGenOptions::OptRemark 1189 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1190 OptSpecifier OptEQ, StringRef Name) { 1191 CodeGenOptions::OptRemark Result; 1192 1193 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1194 StringRef Pattern) { 1195 Result.Pattern = Pattern.str(); 1196 1197 std::string RegexError; 1198 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1199 if (!Result.Regex->isValid(RegexError)) { 1200 Diags.Report(diag::err_drv_optimization_remark_pattern) 1201 << RegexError << A->getAsString(Args); 1202 return false; 1203 } 1204 1205 return true; 1206 }; 1207 1208 for (Arg *A : Args) { 1209 if (A->getOption().matches(OPT_R_Joined)) { 1210 StringRef Value = A->getValue(); 1211 1212 if (Value == Name) 1213 Result.Kind = CodeGenOptions::RK_Enabled; 1214 else if (Value == "everything") 1215 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1216 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1217 Result.Kind = CodeGenOptions::RK_Disabled; 1218 else if (Value == "no-everything") 1219 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1220 else 1221 continue; 1222 1223 if (Result.Kind == CodeGenOptions::RK_Disabled || 1224 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1225 Result.Pattern = ""; 1226 Result.Regex = nullptr; 1227 } else { 1228 InitializeResultPattern(A, ".*"); 1229 } 1230 } else if (A->getOption().matches(OptEQ)) { 1231 Result.Kind = CodeGenOptions::RK_WithPattern; 1232 if (!InitializeResultPattern(A, A->getValue())) 1233 return CodeGenOptions::OptRemark(); 1234 } 1235 } 1236 1237 return Result; 1238 } 1239 1240 static bool parseDiagnosticLevelMask(StringRef FlagName, 1241 const std::vector<std::string> &Levels, 1242 DiagnosticsEngine &Diags, 1243 DiagnosticLevelMask &M) { 1244 bool Success = true; 1245 for (const auto &Level : Levels) { 1246 DiagnosticLevelMask const PM = 1247 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1248 .Case("note", DiagnosticLevelMask::Note) 1249 .Case("remark", DiagnosticLevelMask::Remark) 1250 .Case("warning", DiagnosticLevelMask::Warning) 1251 .Case("error", DiagnosticLevelMask::Error) 1252 .Default(DiagnosticLevelMask::None); 1253 if (PM == DiagnosticLevelMask::None) { 1254 Success = false; 1255 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1256 } 1257 M = M | PM; 1258 } 1259 return Success; 1260 } 1261 1262 static void parseSanitizerKinds(StringRef FlagName, 1263 const std::vector<std::string> &Sanitizers, 1264 DiagnosticsEngine &Diags, SanitizerSet &S) { 1265 for (const auto &Sanitizer : Sanitizers) { 1266 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1267 if (K == SanitizerMask()) 1268 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1269 else 1270 S.set(K, true); 1271 } 1272 } 1273 1274 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1275 SmallVector<StringRef, 4> Values; 1276 serializeSanitizerSet(S, Values); 1277 return Values; 1278 } 1279 1280 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1281 ArgList &Args, DiagnosticsEngine &D, 1282 XRayInstrSet &S) { 1283 llvm::SmallVector<StringRef, 2> BundleParts; 1284 llvm::SplitString(Bundle, BundleParts, ","); 1285 for (const auto &B : BundleParts) { 1286 auto Mask = parseXRayInstrValue(B); 1287 if (Mask == XRayInstrKind::None) 1288 if (B != "none") 1289 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1290 else 1291 S.Mask = Mask; 1292 else if (Mask == XRayInstrKind::All) 1293 S.Mask = Mask; 1294 else 1295 S.set(Mask, true); 1296 } 1297 } 1298 1299 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1300 llvm::SmallVector<StringRef, 2> BundleParts; 1301 serializeXRayInstrValue(S, BundleParts); 1302 std::string Buffer; 1303 llvm::raw_string_ostream OS(Buffer); 1304 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1305 return Buffer; 1306 } 1307 1308 // Set the profile kind using fprofile-instrument-use-path. 1309 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1310 const Twine &ProfileName) { 1311 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1312 // In error, return silently and let Clang PGOUse report the error message. 1313 if (auto E = ReaderOrErr.takeError()) { 1314 llvm::consumeError(std::move(E)); 1315 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1316 return; 1317 } 1318 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1319 std::move(ReaderOrErr.get()); 1320 if (PGOReader->isIRLevelProfile()) { 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 = None; 1387 break; 1388 case codegenoptions::LocTrackingOnly: // implied value 1389 DebugInfoVal = None; 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 for (const auto &F : Opts.LinkBitcodeFiles) { 1496 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1497 F.PropagateAttrs && F.Internalize; 1498 GenerateArg(Args, 1499 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1500 F.Filename, SA); 1501 } 1502 1503 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1504 // That would make it easy to generate the option only **once** if it was 1505 // explicitly set to non-default value. 1506 if (Opts.ExplicitEmulatedTLS) { 1507 GenerateArg( 1508 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1509 } 1510 1511 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1512 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1513 1514 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1515 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1516 SA); 1517 1518 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1519 OptSpecifier Opt = 1520 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1521 GenerateArg(Args, Opt, SA); 1522 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1523 OptSpecifier Opt = 1524 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1525 GenerateArg(Args, Opt, SA); 1526 } 1527 1528 if (Opts.EnableAIXExtendedAltivecABI) 1529 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1530 1531 if (!Opts.OptRecordPasses.empty()) 1532 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1533 1534 if (!Opts.OptRecordFormat.empty()) 1535 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1536 1537 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1538 Opts.OptimizationRemark); 1539 1540 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1541 Opts.OptimizationRemarkMissed); 1542 1543 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1544 Opts.OptimizationRemarkAnalysis); 1545 1546 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1547 Opts.DiagnosticsHotnessThreshold 1548 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1549 : "auto", 1550 SA); 1551 1552 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1553 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1554 1555 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1556 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1557 1558 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1559 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1560 1561 if (!Opts.EmitVersionIdentMetadata) 1562 GenerateArg(Args, OPT_Qn, SA); 1563 1564 switch (Opts.FiniteLoops) { 1565 case CodeGenOptions::FiniteLoopsKind::Language: 1566 break; 1567 case CodeGenOptions::FiniteLoopsKind::Always: 1568 GenerateArg(Args, OPT_ffinite_loops, SA); 1569 break; 1570 case CodeGenOptions::FiniteLoopsKind::Never: 1571 GenerateArg(Args, OPT_fno_finite_loops, SA); 1572 break; 1573 } 1574 } 1575 1576 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1577 InputKind IK, 1578 DiagnosticsEngine &Diags, 1579 const llvm::Triple &T, 1580 const std::string &OutputFile, 1581 const LangOptions &LangOptsRef) { 1582 unsigned NumErrorsBefore = Diags.getNumErrors(); 1583 1584 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1585 // TODO: This could be done in Driver 1586 unsigned MaxOptLevel = 3; 1587 if (OptimizationLevel > MaxOptLevel) { 1588 // If the optimization level is not supported, fall back on the default 1589 // optimization 1590 Diags.Report(diag::warn_drv_optimization_value) 1591 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1592 OptimizationLevel = MaxOptLevel; 1593 } 1594 Opts.OptimizationLevel = OptimizationLevel; 1595 1596 // The key paths of codegen options defined in Options.td start with 1597 // "CodeGenOpts.". Let's provide the expected variable name and type. 1598 CodeGenOptions &CodeGenOpts = Opts; 1599 // Some codegen options depend on language options. Let's provide the expected 1600 // variable name and type. 1601 const LangOptions *LangOpts = &LangOptsRef; 1602 1603 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1604 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1605 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1606 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1607 MERGER, EXTRACTOR, TABLE_INDEX) \ 1608 PARSE_OPTION_WITH_MARSHALLING( \ 1609 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1610 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1611 #include "clang/Driver/Options.inc" 1612 #undef CODEGEN_OPTION_WITH_MARSHALLING 1613 1614 // At O0 we want to fully disable inlining outside of cases marked with 1615 // 'alwaysinline' that are required for correctness. 1616 Opts.setInlining((Opts.OptimizationLevel == 0) 1617 ? CodeGenOptions::OnlyAlwaysInlining 1618 : CodeGenOptions::NormalInlining); 1619 // Explicit inlining flags can disable some or all inlining even at 1620 // optimization levels above zero. 1621 if (Arg *InlineArg = Args.getLastArg( 1622 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1623 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1624 if (Opts.OptimizationLevel > 0) { 1625 const Option &InlineOpt = InlineArg->getOption(); 1626 if (InlineOpt.matches(options::OPT_finline_functions)) 1627 Opts.setInlining(CodeGenOptions::NormalInlining); 1628 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1629 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1630 else 1631 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1632 } 1633 } 1634 1635 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1636 // -fdirect-access-external-data. 1637 Opts.DirectAccessExternalData = 1638 Args.hasArg(OPT_fdirect_access_external_data) || 1639 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1640 LangOpts->PICLevel == 0); 1641 1642 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1643 unsigned Val = 1644 llvm::StringSwitch<unsigned>(A->getValue()) 1645 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1646 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1647 .Case("constructor", codegenoptions::DebugInfoConstructor) 1648 .Case("limited", codegenoptions::LimitedDebugInfo) 1649 .Case("standalone", codegenoptions::FullDebugInfo) 1650 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1651 .Default(~0U); 1652 if (Val == ~0U) 1653 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1654 << A->getValue(); 1655 else 1656 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1657 } 1658 1659 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1660 // constructor homing, and vice versa for -fno-use-ctor-homing. 1661 if (const Arg *A = 1662 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1663 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1664 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1665 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1666 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1667 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1668 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1669 } 1670 1671 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1672 auto Split = StringRef(Arg).split('='); 1673 Opts.DebugPrefixMap.insert( 1674 {std::string(Split.first), std::string(Split.second)}); 1675 } 1676 1677 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1678 auto Split = StringRef(Arg).split('='); 1679 Opts.CoveragePrefixMap.insert( 1680 {std::string(Split.first), std::string(Split.second)}); 1681 } 1682 1683 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1684 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1685 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1686 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1687 1688 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1689 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1690 Opts.EmitCallSiteInfo = true; 1691 1692 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1693 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1694 << Opts.DIBugsReportFilePath; 1695 Opts.DIBugsReportFilePath = ""; 1696 } 1697 1698 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1699 Args.hasArg(OPT_new_struct_path_tbaa); 1700 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1701 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1702 if (Opts.SimplifyLibCalls) 1703 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1704 Opts.UnrollLoops = 1705 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1706 (Opts.OptimizationLevel > 1)); 1707 Opts.BinutilsVersion = 1708 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1709 1710 Opts.DebugNameTable = static_cast<unsigned>( 1711 Args.hasArg(OPT_ggnu_pubnames) 1712 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1713 : Args.hasArg(OPT_gpubnames) 1714 ? llvm::DICompileUnit::DebugNameTableKind::Default 1715 : llvm::DICompileUnit::DebugNameTableKind::None); 1716 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1717 StringRef Value = A->getValue(); 1718 if (Value != "simple" && Value != "mangled") 1719 Diags.Report(diag::err_drv_unsupported_option_argument) 1720 << A->getOption().getName() << A->getValue(); 1721 Opts.setDebugSimpleTemplateNames( 1722 StringRef(A->getValue()) == "simple" 1723 ? codegenoptions::DebugTemplateNamesKind::Simple 1724 : codegenoptions::DebugTemplateNamesKind::Mangled); 1725 } 1726 1727 if (!Opts.ProfileInstrumentUsePath.empty()) 1728 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1729 1730 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1731 Opts.TimePasses = true; 1732 1733 // -ftime-report= is only for new pass manager. 1734 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1735 if (Opts.LegacyPassManager) 1736 Diags.Report(diag::err_drv_argument_only_allowed_with) 1737 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1738 1739 StringRef Val = A->getValue(); 1740 if (Val == "per-pass") 1741 Opts.TimePassesPerRun = false; 1742 else if (Val == "per-pass-run") 1743 Opts.TimePassesPerRun = true; 1744 else 1745 Diags.Report(diag::err_drv_invalid_value) 1746 << A->getAsString(Args) << A->getValue(); 1747 } 1748 } 1749 1750 Opts.PrepareForLTO = false; 1751 Opts.PrepareForThinLTO = false; 1752 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1753 Opts.PrepareForLTO = true; 1754 StringRef S = A->getValue(); 1755 if (S == "thin") 1756 Opts.PrepareForThinLTO = true; 1757 else if (S != "full") 1758 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1759 } 1760 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1761 if (IK.getLanguage() != Language::LLVM_IR) 1762 Diags.Report(diag::err_drv_argument_only_allowed_with) 1763 << A->getAsString(Args) << "-x ir"; 1764 Opts.ThinLTOIndexFile = 1765 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1766 } 1767 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1768 Opts.SaveTempsFilePrefix = 1769 llvm::StringSwitch<std::string>(A->getValue()) 1770 .Case("obj", OutputFile) 1771 .Default(llvm::sys::path::filename(OutputFile).str()); 1772 1773 // The memory profile runtime appends the pid to make this name more unique. 1774 const char *MemProfileBasename = "memprof.profraw"; 1775 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1776 SmallString<128> Path( 1777 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1778 llvm::sys::path::append(Path, MemProfileBasename); 1779 Opts.MemoryProfileOutput = std::string(Path); 1780 } else if (Args.hasArg(OPT_fmemory_profile)) 1781 Opts.MemoryProfileOutput = MemProfileBasename; 1782 1783 memcpy(Opts.CoverageVersion, "408*", 4); 1784 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1785 if (Args.hasArg(OPT_coverage_version_EQ)) { 1786 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1787 if (CoverageVersion.size() != 4) { 1788 Diags.Report(diag::err_drv_invalid_value) 1789 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1790 << CoverageVersion; 1791 } else { 1792 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1793 } 1794 } 1795 } 1796 // FIXME: For backend options that are not yet recorded as function 1797 // attributes in the IR, keep track of them so we can embed them in a 1798 // separate data section and use them when building the bitcode. 1799 for (const auto &A : Args) { 1800 // Do not encode output and input. 1801 if (A->getOption().getID() == options::OPT_o || 1802 A->getOption().getID() == options::OPT_INPUT || 1803 A->getOption().getID() == options::OPT_x || 1804 A->getOption().getID() == options::OPT_fembed_bitcode || 1805 A->getOption().matches(options::OPT_W_Group)) 1806 continue; 1807 ArgStringList ASL; 1808 A->render(Args, ASL); 1809 for (const auto &arg : ASL) { 1810 StringRef ArgStr(arg); 1811 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1812 // using \00 to separate each commandline options. 1813 Opts.CmdArgs.push_back('\0'); 1814 } 1815 } 1816 1817 auto XRayInstrBundles = 1818 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1819 if (XRayInstrBundles.empty()) 1820 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1821 else 1822 for (const auto &A : XRayInstrBundles) 1823 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1824 Diags, Opts.XRayInstrumentationBundle); 1825 1826 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1827 StringRef Name = A->getValue(); 1828 if (Name == "full") { 1829 Opts.CFProtectionReturn = 1; 1830 Opts.CFProtectionBranch = 1; 1831 } else if (Name == "return") 1832 Opts.CFProtectionReturn = 1; 1833 else if (Name == "branch") 1834 Opts.CFProtectionBranch = 1; 1835 else if (Name != "none") 1836 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1837 } 1838 1839 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1840 Opts.IBTSeal = 1; 1841 1842 for (auto *A : 1843 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1844 CodeGenOptions::BitcodeFileToLink F; 1845 F.Filename = A->getValue(); 1846 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1847 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1848 // When linking CUDA bitcode, propagate function attributes so that 1849 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1850 F.PropagateAttrs = true; 1851 F.Internalize = true; 1852 } 1853 Opts.LinkBitcodeFiles.push_back(F); 1854 } 1855 1856 if (Args.getLastArg(OPT_femulated_tls) || 1857 Args.getLastArg(OPT_fno_emulated_tls)) { 1858 Opts.ExplicitEmulatedTLS = true; 1859 } 1860 1861 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1862 if (T.isOSAIX()) { 1863 StringRef Name = A->getValue(); 1864 if (Name != "global-dynamic") 1865 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1866 } 1867 } 1868 1869 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1870 StringRef Val = A->getValue(); 1871 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1872 if (!Opts.FPDenormalMode.isValid()) 1873 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1874 } 1875 1876 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1877 StringRef Val = A->getValue(); 1878 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1879 if (!Opts.FP32DenormalMode.isValid()) 1880 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1881 } 1882 1883 // X86_32 has -fppc-struct-return and -freg-struct-return. 1884 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1885 if (Arg *A = 1886 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1887 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1888 // TODO: We might want to consider enabling these options on AIX in the 1889 // future. 1890 if (T.isOSAIX()) 1891 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1892 << A->getSpelling() << T.str(); 1893 1894 const Option &O = A->getOption(); 1895 if (O.matches(OPT_fpcc_struct_return) || 1896 O.matches(OPT_maix_struct_return)) { 1897 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1898 } else { 1899 assert(O.matches(OPT_freg_struct_return) || 1900 O.matches(OPT_msvr4_struct_return)); 1901 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1902 } 1903 } 1904 1905 if (Arg *A = 1906 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1907 if (!T.isOSAIX()) 1908 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1909 << A->getSpelling() << T.str(); 1910 1911 const Option &O = A->getOption(); 1912 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1913 } 1914 1915 bool NeedLocTracking = false; 1916 1917 if (!Opts.OptRecordFile.empty()) 1918 NeedLocTracking = true; 1919 1920 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1921 Opts.OptRecordPasses = A->getValue(); 1922 NeedLocTracking = true; 1923 } 1924 1925 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1926 Opts.OptRecordFormat = A->getValue(); 1927 NeedLocTracking = true; 1928 } 1929 1930 Opts.OptimizationRemark = 1931 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1932 1933 Opts.OptimizationRemarkMissed = 1934 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1935 1936 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1937 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1938 1939 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1940 Opts.OptimizationRemarkMissed.hasValidPattern() || 1941 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1942 1943 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1944 bool UsingProfile = UsingSampleProfile || 1945 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1946 1947 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1948 // An IR file will contain PGO as metadata 1949 IK.getLanguage() != Language::LLVM_IR) 1950 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1951 << "-fdiagnostics-show-hotness"; 1952 1953 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1954 if (auto *arg = 1955 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1956 auto ResultOrErr = 1957 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1958 1959 if (!ResultOrErr) { 1960 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1961 << "-fdiagnostics-hotness-threshold="; 1962 } else { 1963 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1964 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1965 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1966 !UsingProfile) 1967 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1968 << "-fdiagnostics-hotness-threshold="; 1969 } 1970 } 1971 1972 if (auto *arg = 1973 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1974 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1975 1976 if (!ResultOrErr) { 1977 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 1978 << "-fdiagnostics-misexpect-tolerance="; 1979 } else { 1980 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 1981 if ((!Opts.DiagnosticsMisExpectTolerance.hasValue() || 1982 Opts.DiagnosticsMisExpectTolerance.getValue() > 0) && 1983 !UsingProfile) 1984 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 1985 << "-fdiagnostics-misexpect-tolerance="; 1986 } 1987 } 1988 1989 // If the user requested to use a sample profile for PGO, then the 1990 // backend will need to track source location information so the profile 1991 // can be incorporated into the IR. 1992 if (UsingSampleProfile) 1993 NeedLocTracking = true; 1994 1995 if (!Opts.StackUsageOutput.empty()) 1996 NeedLocTracking = true; 1997 1998 // If the user requested a flag that requires source locations available in 1999 // the backend, make sure that the backend tracks source location information. 2000 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2001 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2002 2003 // Parse -fsanitize-recover= arguments. 2004 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2005 parseSanitizerKinds("-fsanitize-recover=", 2006 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2007 Opts.SanitizeRecover); 2008 parseSanitizerKinds("-fsanitize-trap=", 2009 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2010 Opts.SanitizeTrap); 2011 2012 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2013 2014 if (Args.hasArg(options::OPT_ffinite_loops)) 2015 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2016 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2017 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2018 2019 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2020 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2021 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2022 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2023 2024 return Diags.getNumErrors() == NumErrorsBefore; 2025 } 2026 2027 static void 2028 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2029 SmallVectorImpl<const char *> &Args, 2030 CompilerInvocation::StringAllocator SA) { 2031 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2032 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2033 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2034 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2035 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2036 MERGER, EXTRACTOR, TABLE_INDEX) \ 2037 GENERATE_OPTION_WITH_MARSHALLING( \ 2038 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2039 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2040 #include "clang/Driver/Options.inc" 2041 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2042 2043 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2044 GenerateArg(Args, OPT_show_includes, SA); 2045 2046 for (const auto &Dep : Opts.ExtraDeps) { 2047 switch (Dep.second) { 2048 case EDK_SanitizeIgnorelist: 2049 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2050 continue; 2051 case EDK_ModuleFile: 2052 // Module file arguments are generated from FrontendOptions and 2053 // HeaderSearchOptions. 2054 continue; 2055 case EDK_ProfileList: 2056 // Profile list arguments are generated from LanguageOptions via the 2057 // marshalling infrastructure. 2058 continue; 2059 case EDK_DepFileEntry: 2060 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2061 break; 2062 } 2063 } 2064 } 2065 2066 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2067 ArgList &Args, DiagnosticsEngine &Diags, 2068 frontend::ActionKind Action, 2069 bool ShowLineMarkers) { 2070 unsigned NumErrorsBefore = Diags.getNumErrors(); 2071 2072 DependencyOutputOptions &DependencyOutputOpts = Opts; 2073 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2074 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2075 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2076 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2077 MERGER, EXTRACTOR, TABLE_INDEX) \ 2078 PARSE_OPTION_WITH_MARSHALLING( \ 2079 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2080 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2081 #include "clang/Driver/Options.inc" 2082 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2083 2084 if (Args.hasArg(OPT_show_includes)) { 2085 // Writing both /showIncludes and preprocessor output to stdout 2086 // would produce interleaved output, so use stderr for /showIncludes. 2087 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2088 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2089 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2090 else 2091 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2092 } else { 2093 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2094 } 2095 2096 // Add sanitizer ignorelists as extra dependencies. 2097 // They won't be discovered by the regular preprocessor, so 2098 // we let make / ninja to know about this implicit dependency. 2099 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2100 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2101 StringRef Val = A->getValue(); 2102 if (!Val.contains('=')) 2103 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2104 } 2105 if (Opts.IncludeSystemHeaders) { 2106 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2107 StringRef Val = A->getValue(); 2108 if (!Val.contains('=')) 2109 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2110 } 2111 } 2112 } 2113 2114 // -fprofile-list= dependencies. 2115 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2116 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2117 2118 // Propagate the extra dependencies. 2119 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2120 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2121 2122 // Only the -fmodule-file=<file> form. 2123 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2124 StringRef Val = A->getValue(); 2125 if (!Val.contains('=')) 2126 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2127 } 2128 2129 return Diags.getNumErrors() == NumErrorsBefore; 2130 } 2131 2132 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2133 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2134 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2135 // Support both clang's -f[no-]color-diagnostics and gcc's 2136 // -f[no-]diagnostics-colors[=never|always|auto]. 2137 enum { 2138 Colors_On, 2139 Colors_Off, 2140 Colors_Auto 2141 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2142 for (auto *A : Args) { 2143 const Option &O = A->getOption(); 2144 if (O.matches(options::OPT_fcolor_diagnostics) || 2145 O.matches(options::OPT_fdiagnostics_color)) { 2146 ShowColors = Colors_On; 2147 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2148 O.matches(options::OPT_fno_diagnostics_color)) { 2149 ShowColors = Colors_Off; 2150 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2151 StringRef Value(A->getValue()); 2152 if (Value == "always") 2153 ShowColors = Colors_On; 2154 else if (Value == "never") 2155 ShowColors = Colors_Off; 2156 else if (Value == "auto") 2157 ShowColors = Colors_Auto; 2158 } 2159 } 2160 return ShowColors == Colors_On || 2161 (ShowColors == Colors_Auto && 2162 llvm::sys::Process::StandardErrHasColors()); 2163 } 2164 2165 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2166 DiagnosticsEngine &Diags) { 2167 bool Success = true; 2168 for (const auto &Prefix : VerifyPrefixes) { 2169 // Every prefix must start with a letter and contain only alphanumeric 2170 // characters, hyphens, and underscores. 2171 auto BadChar = llvm::find_if(Prefix, [](char C) { 2172 return !isAlphanumeric(C) && C != '-' && C != '_'; 2173 }); 2174 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2175 Success = false; 2176 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2177 Diags.Report(diag::note_drv_verify_prefix_spelling); 2178 } 2179 } 2180 return Success; 2181 } 2182 2183 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2184 SmallVectorImpl<const char *> &Args, 2185 CompilerInvocation::StringAllocator SA) { 2186 const FileSystemOptions &FileSystemOpts = Opts; 2187 2188 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2189 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2190 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2191 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2192 MERGER, EXTRACTOR, TABLE_INDEX) \ 2193 GENERATE_OPTION_WITH_MARSHALLING( \ 2194 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2195 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2196 #include "clang/Driver/Options.inc" 2197 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2198 } 2199 2200 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2201 DiagnosticsEngine &Diags) { 2202 unsigned NumErrorsBefore = Diags.getNumErrors(); 2203 2204 FileSystemOptions &FileSystemOpts = Opts; 2205 2206 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2207 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2208 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2209 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2210 MERGER, EXTRACTOR, TABLE_INDEX) \ 2211 PARSE_OPTION_WITH_MARSHALLING( \ 2212 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2213 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2214 #include "clang/Driver/Options.inc" 2215 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2216 2217 return Diags.getNumErrors() == NumErrorsBefore; 2218 } 2219 2220 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2221 SmallVectorImpl<const char *> &Args, 2222 CompilerInvocation::StringAllocator SA) { 2223 const MigratorOptions &MigratorOpts = Opts; 2224 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2225 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2226 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2227 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2228 MERGER, EXTRACTOR, TABLE_INDEX) \ 2229 GENERATE_OPTION_WITH_MARSHALLING( \ 2230 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2231 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2232 #include "clang/Driver/Options.inc" 2233 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2234 } 2235 2236 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2237 DiagnosticsEngine &Diags) { 2238 unsigned NumErrorsBefore = Diags.getNumErrors(); 2239 2240 MigratorOptions &MigratorOpts = Opts; 2241 2242 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2243 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2244 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2245 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2246 MERGER, EXTRACTOR, TABLE_INDEX) \ 2247 PARSE_OPTION_WITH_MARSHALLING( \ 2248 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2249 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2250 #include "clang/Driver/Options.inc" 2251 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2252 2253 return Diags.getNumErrors() == NumErrorsBefore; 2254 } 2255 2256 void CompilerInvocation::GenerateDiagnosticArgs( 2257 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2258 StringAllocator SA, bool DefaultDiagColor) { 2259 const DiagnosticOptions *DiagnosticOpts = &Opts; 2260 #define DIAG_OPTION_WITH_MARSHALLING( \ 2261 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2262 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2263 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2264 MERGER, EXTRACTOR, TABLE_INDEX) \ 2265 GENERATE_OPTION_WITH_MARSHALLING( \ 2266 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2267 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2268 #include "clang/Driver/Options.inc" 2269 #undef DIAG_OPTION_WITH_MARSHALLING 2270 2271 if (!Opts.DiagnosticSerializationFile.empty()) 2272 GenerateArg(Args, OPT_diagnostic_serialized_file, 2273 Opts.DiagnosticSerializationFile, SA); 2274 2275 if (Opts.ShowColors) 2276 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2277 2278 if (Opts.VerifyDiagnostics && 2279 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2280 GenerateArg(Args, OPT_verify, SA); 2281 2282 for (const auto &Prefix : Opts.VerifyPrefixes) 2283 if (Prefix != "expected") 2284 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2285 2286 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2287 if (VIU == DiagnosticLevelMask::None) { 2288 // This is the default, don't generate anything. 2289 } else if (VIU == DiagnosticLevelMask::All) { 2290 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2291 } else { 2292 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2293 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2294 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2295 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2296 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2297 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2298 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2299 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2300 } 2301 2302 for (const auto &Warning : Opts.Warnings) { 2303 // This option is automatically generated from UndefPrefixes. 2304 if (Warning == "undef-prefix") 2305 continue; 2306 Args.push_back(SA(StringRef("-W") + Warning)); 2307 } 2308 2309 for (const auto &Remark : Opts.Remarks) { 2310 // These arguments are generated from OptimizationRemark fields of 2311 // CodeGenOptions. 2312 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2313 "pass-analysis", "no-pass-analysis", 2314 "pass-missed", "no-pass-missed"}; 2315 if (llvm::is_contained(IgnoredRemarks, Remark)) 2316 continue; 2317 2318 Args.push_back(SA(StringRef("-R") + Remark)); 2319 } 2320 } 2321 2322 std::unique_ptr<DiagnosticOptions> 2323 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2324 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2325 unsigned MissingArgIndex, MissingArgCount; 2326 InputArgList Args = getDriverOptTable().ParseArgs( 2327 Argv.slice(1), MissingArgIndex, MissingArgCount); 2328 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2329 // Any errors that would be diagnosed here will also be diagnosed later, 2330 // when the DiagnosticsEngine actually exists. 2331 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2332 return DiagOpts; 2333 } 2334 2335 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2336 DiagnosticsEngine *Diags, 2337 bool DefaultDiagColor) { 2338 Optional<DiagnosticsEngine> IgnoringDiags; 2339 if (!Diags) { 2340 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2341 new IgnoringDiagConsumer()); 2342 Diags = &*IgnoringDiags; 2343 } 2344 2345 unsigned NumErrorsBefore = Diags->getNumErrors(); 2346 2347 // The key paths of diagnostic options defined in Options.td start with 2348 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2349 DiagnosticOptions *DiagnosticOpts = &Opts; 2350 2351 #define DIAG_OPTION_WITH_MARSHALLING( \ 2352 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2353 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2354 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2355 MERGER, EXTRACTOR, TABLE_INDEX) \ 2356 PARSE_OPTION_WITH_MARSHALLING( \ 2357 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2358 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2359 #include "clang/Driver/Options.inc" 2360 #undef DIAG_OPTION_WITH_MARSHALLING 2361 2362 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2363 2364 if (Arg *A = 2365 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2366 Opts.DiagnosticSerializationFile = A->getValue(); 2367 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2368 2369 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2370 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2371 if (Args.hasArg(OPT_verify)) 2372 Opts.VerifyPrefixes.push_back("expected"); 2373 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2374 // then sort it to prepare for fast lookup using std::binary_search. 2375 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2376 Opts.VerifyDiagnostics = false; 2377 else 2378 llvm::sort(Opts.VerifyPrefixes); 2379 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2380 parseDiagnosticLevelMask( 2381 "-verify-ignore-unexpected=", 2382 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2383 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2384 DiagMask = DiagnosticLevelMask::All; 2385 Opts.setVerifyIgnoreUnexpected(DiagMask); 2386 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2387 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2388 Diags->Report(diag::warn_ignoring_ftabstop_value) 2389 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2390 } 2391 2392 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2393 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2394 2395 return Diags->getNumErrors() == NumErrorsBefore; 2396 } 2397 2398 /// Parse the argument to the -ftest-module-file-extension 2399 /// command-line argument. 2400 /// 2401 /// \returns true on error, false on success. 2402 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2403 std::string &BlockName, 2404 unsigned &MajorVersion, 2405 unsigned &MinorVersion, 2406 bool &Hashed, 2407 std::string &UserInfo) { 2408 SmallVector<StringRef, 5> Args; 2409 Arg.split(Args, ':', 5); 2410 if (Args.size() < 5) 2411 return true; 2412 2413 BlockName = std::string(Args[0]); 2414 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2415 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2416 if (Args[3].getAsInteger(2, Hashed)) return true; 2417 if (Args.size() > 4) 2418 UserInfo = std::string(Args[4]); 2419 return false; 2420 } 2421 2422 /// Return a table that associates command line option specifiers with the 2423 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2424 /// intentionally missing, as this case is handled separately from other 2425 /// frontend options. 2426 static const auto &getFrontendActionTable() { 2427 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2428 {frontend::ASTDeclList, OPT_ast_list}, 2429 2430 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2431 {frontend::ASTDump, OPT_ast_dump_all}, 2432 {frontend::ASTDump, OPT_ast_dump_EQ}, 2433 {frontend::ASTDump, OPT_ast_dump}, 2434 {frontend::ASTDump, OPT_ast_dump_lookups}, 2435 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2436 2437 {frontend::ASTPrint, OPT_ast_print}, 2438 {frontend::ASTView, OPT_ast_view}, 2439 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2440 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2441 {frontend::DumpTokens, OPT_dump_tokens}, 2442 {frontend::EmitAssembly, OPT_S}, 2443 {frontend::EmitBC, OPT_emit_llvm_bc}, 2444 {frontend::EmitHTML, OPT_emit_html}, 2445 {frontend::EmitLLVM, OPT_emit_llvm}, 2446 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2447 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2448 {frontend::EmitObj, OPT_emit_obj}, 2449 {frontend::ExtractAPI, OPT_extract_api}, 2450 2451 {frontend::FixIt, OPT_fixit_EQ}, 2452 {frontend::FixIt, OPT_fixit}, 2453 2454 {frontend::GenerateModule, OPT_emit_module}, 2455 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2456 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2457 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2458 {frontend::GeneratePCH, OPT_emit_pch}, 2459 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2460 {frontend::InitOnly, OPT_init_only}, 2461 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2462 {frontend::ModuleFileInfo, OPT_module_file_info}, 2463 {frontend::VerifyPCH, OPT_verify_pch}, 2464 {frontend::PrintPreamble, OPT_print_preamble}, 2465 {frontend::PrintPreprocessedInput, OPT_E}, 2466 {frontend::TemplightDump, OPT_templight_dump}, 2467 {frontend::RewriteMacros, OPT_rewrite_macros}, 2468 {frontend::RewriteObjC, OPT_rewrite_objc}, 2469 {frontend::RewriteTest, OPT_rewrite_test}, 2470 {frontend::RunAnalysis, OPT_analyze}, 2471 {frontend::MigrateSource, OPT_migrate}, 2472 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2473 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2474 OPT_print_dependency_directives_minimized_source}, 2475 }; 2476 2477 return Table; 2478 } 2479 2480 /// Maps command line option to frontend action. 2481 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2482 for (const auto &ActionOpt : getFrontendActionTable()) 2483 if (ActionOpt.second == Opt.getID()) 2484 return ActionOpt.first; 2485 2486 return None; 2487 } 2488 2489 /// Maps frontend action to command line option. 2490 static Optional<OptSpecifier> 2491 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2492 for (const auto &ActionOpt : getFrontendActionTable()) 2493 if (ActionOpt.first == ProgramAction) 2494 return OptSpecifier(ActionOpt.second); 2495 2496 return None; 2497 } 2498 2499 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2500 SmallVectorImpl<const char *> &Args, 2501 CompilerInvocation::StringAllocator SA, 2502 bool IsHeader) { 2503 const FrontendOptions &FrontendOpts = Opts; 2504 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2505 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2506 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2507 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2508 MERGER, EXTRACTOR, TABLE_INDEX) \ 2509 GENERATE_OPTION_WITH_MARSHALLING( \ 2510 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2511 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2512 #include "clang/Driver/Options.inc" 2513 #undef FRONTEND_OPTION_WITH_MARSHALLING 2514 2515 Optional<OptSpecifier> ProgramActionOpt = 2516 getProgramActionOpt(Opts.ProgramAction); 2517 2518 // Generating a simple flag covers most frontend actions. 2519 std::function<void()> GenerateProgramAction = [&]() { 2520 GenerateArg(Args, *ProgramActionOpt, SA); 2521 }; 2522 2523 if (!ProgramActionOpt) { 2524 // PluginAction is the only program action handled separately. 2525 assert(Opts.ProgramAction == frontend::PluginAction && 2526 "Frontend action without option."); 2527 GenerateProgramAction = [&]() { 2528 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2529 }; 2530 } 2531 2532 // FIXME: Simplify the complex 'AST dump' command line. 2533 if (Opts.ProgramAction == frontend::ASTDump) { 2534 GenerateProgramAction = [&]() { 2535 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2536 // marshalling infrastructure. 2537 2538 if (Opts.ASTDumpFormat != ADOF_Default) { 2539 StringRef Format; 2540 switch (Opts.ASTDumpFormat) { 2541 case ADOF_Default: 2542 llvm_unreachable("Default AST dump format."); 2543 case ADOF_JSON: 2544 Format = "json"; 2545 break; 2546 } 2547 2548 if (Opts.ASTDumpAll) 2549 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2550 if (Opts.ASTDumpDecls) 2551 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2552 } else { 2553 if (Opts.ASTDumpAll) 2554 GenerateArg(Args, OPT_ast_dump_all, SA); 2555 if (Opts.ASTDumpDecls) 2556 GenerateArg(Args, OPT_ast_dump, SA); 2557 } 2558 }; 2559 } 2560 2561 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2562 GenerateProgramAction = [&]() { 2563 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2564 }; 2565 } 2566 2567 GenerateProgramAction(); 2568 2569 for (const auto &PluginArgs : Opts.PluginArgs) { 2570 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2571 const char *Spelling = 2572 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2573 for (const auto &PluginArg : PluginArgs.second) 2574 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2575 } 2576 2577 for (const auto &Ext : Opts.ModuleFileExtensions) 2578 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2579 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2580 2581 if (!Opts.CodeCompletionAt.FileName.empty()) 2582 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2583 SA); 2584 2585 for (const auto &Plugin : Opts.Plugins) 2586 GenerateArg(Args, OPT_load, Plugin, SA); 2587 2588 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2589 2590 for (const auto &ModuleFile : Opts.ModuleFiles) 2591 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2592 2593 if (Opts.AuxTargetCPU.hasValue()) 2594 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2595 2596 if (Opts.AuxTargetFeatures.hasValue()) 2597 for (const auto &Feature : *Opts.AuxTargetFeatures) 2598 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2599 2600 { 2601 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2602 StringRef ModuleMap = 2603 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2604 StringRef HeaderUnit = ""; 2605 switch (Opts.DashX.getHeaderUnitKind()) { 2606 case InputKind::HeaderUnit_None: 2607 break; 2608 case InputKind::HeaderUnit_User: 2609 HeaderUnit = "-user"; 2610 break; 2611 case InputKind::HeaderUnit_System: 2612 HeaderUnit = "-system"; 2613 break; 2614 case InputKind::HeaderUnit_Abs: 2615 HeaderUnit = "-header-unit"; 2616 break; 2617 } 2618 StringRef Header = IsHeader ? "-header" : ""; 2619 2620 StringRef Lang; 2621 switch (Opts.DashX.getLanguage()) { 2622 case Language::C: 2623 Lang = "c"; 2624 break; 2625 case Language::OpenCL: 2626 Lang = "cl"; 2627 break; 2628 case Language::OpenCLCXX: 2629 Lang = "clcpp"; 2630 break; 2631 case Language::CUDA: 2632 Lang = "cuda"; 2633 break; 2634 case Language::HIP: 2635 Lang = "hip"; 2636 break; 2637 case Language::CXX: 2638 Lang = "c++"; 2639 break; 2640 case Language::ObjC: 2641 Lang = "objective-c"; 2642 break; 2643 case Language::ObjCXX: 2644 Lang = "objective-c++"; 2645 break; 2646 case Language::RenderScript: 2647 Lang = "renderscript"; 2648 break; 2649 case Language::Asm: 2650 Lang = "assembler-with-cpp"; 2651 break; 2652 case Language::Unknown: 2653 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2654 "Generating -x argument for unknown language (not precompiled)."); 2655 Lang = "ast"; 2656 break; 2657 case Language::LLVM_IR: 2658 Lang = "ir"; 2659 break; 2660 case Language::HLSL: 2661 Lang = "hlsl"; 2662 break; 2663 } 2664 2665 GenerateArg(Args, OPT_x, 2666 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2667 } 2668 2669 // OPT_INPUT has a unique class, generate it directly. 2670 for (const auto &Input : Opts.Inputs) 2671 Args.push_back(SA(Input.getFile())); 2672 } 2673 2674 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2675 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2676 unsigned NumErrorsBefore = Diags.getNumErrors(); 2677 2678 FrontendOptions &FrontendOpts = Opts; 2679 2680 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2681 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2682 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2683 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2684 MERGER, EXTRACTOR, TABLE_INDEX) \ 2685 PARSE_OPTION_WITH_MARSHALLING( \ 2686 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2687 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2688 #include "clang/Driver/Options.inc" 2689 #undef FRONTEND_OPTION_WITH_MARSHALLING 2690 2691 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2692 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2693 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2694 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2695 assert(ProgramAction && "Option specifier not in Action_Group."); 2696 2697 if (ProgramAction == frontend::ASTDump && 2698 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2699 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2700 .CaseLower("default", ADOF_Default) 2701 .CaseLower("json", ADOF_JSON) 2702 .Default(std::numeric_limits<unsigned>::max()); 2703 2704 if (Val != std::numeric_limits<unsigned>::max()) 2705 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2706 else { 2707 Diags.Report(diag::err_drv_invalid_value) 2708 << A->getAsString(Args) << A->getValue(); 2709 Opts.ASTDumpFormat = ADOF_Default; 2710 } 2711 } 2712 2713 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2714 Opts.FixItSuffix = A->getValue(); 2715 2716 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2717 StringRef ArgStr = 2718 Args.hasArg(OPT_interface_stub_version_EQ) 2719 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2720 : "ifs-v1"; 2721 if (ArgStr == "experimental-yaml-elf-v1" || 2722 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2723 ArgStr == "experimental-tapi-elf-v1") { 2724 std::string ErrorMessage = 2725 "Invalid interface stub format: " + ArgStr.str() + 2726 " is deprecated."; 2727 Diags.Report(diag::err_drv_invalid_value) 2728 << "Must specify a valid interface stub format type, ie: " 2729 "-interface-stub-version=ifs-v1" 2730 << ErrorMessage; 2731 ProgramAction = frontend::ParseSyntaxOnly; 2732 } else if (!ArgStr.startswith("ifs-")) { 2733 std::string ErrorMessage = 2734 "Invalid interface stub format: " + ArgStr.str() + "."; 2735 Diags.Report(diag::err_drv_invalid_value) 2736 << "Must specify a valid interface stub format type, ie: " 2737 "-interface-stub-version=ifs-v1" 2738 << ErrorMessage; 2739 ProgramAction = frontend::ParseSyntaxOnly; 2740 } 2741 } 2742 2743 Opts.ProgramAction = *ProgramAction; 2744 } 2745 2746 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2747 Opts.Plugins.emplace_back(A->getValue(0)); 2748 Opts.ProgramAction = frontend::PluginAction; 2749 Opts.ActionName = A->getValue(); 2750 } 2751 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2752 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2753 2754 for (const std::string &Arg : 2755 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2756 std::string BlockName; 2757 unsigned MajorVersion; 2758 unsigned MinorVersion; 2759 bool Hashed; 2760 std::string UserInfo; 2761 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2762 MinorVersion, Hashed, UserInfo)) { 2763 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2764 2765 continue; 2766 } 2767 2768 // Add the testing module file extension. 2769 Opts.ModuleFileExtensions.push_back( 2770 std::make_shared<TestModuleFileExtension>( 2771 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2772 } 2773 2774 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2775 Opts.CodeCompletionAt = 2776 ParsedSourceLocation::FromString(A->getValue()); 2777 if (Opts.CodeCompletionAt.FileName.empty()) 2778 Diags.Report(diag::err_drv_invalid_value) 2779 << A->getAsString(Args) << A->getValue(); 2780 } 2781 2782 Opts.Plugins = Args.getAllArgValues(OPT_load); 2783 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2784 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2785 // Only the -fmodule-file=<file> form. 2786 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2787 StringRef Val = A->getValue(); 2788 if (!Val.contains('=')) 2789 Opts.ModuleFiles.push_back(std::string(Val)); 2790 } 2791 2792 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2793 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2794 << "-emit-module"; 2795 2796 if (Args.hasArg(OPT_aux_target_cpu)) 2797 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2798 if (Args.hasArg(OPT_aux_target_feature)) 2799 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2800 2801 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2802 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2803 Diags.Report(diag::err_drv_argument_not_allowed_with) 2804 << "ARC migration" << "ObjC migration"; 2805 } 2806 2807 InputKind DashX(Language::Unknown); 2808 if (const Arg *A = Args.getLastArg(OPT_x)) { 2809 StringRef XValue = A->getValue(); 2810 2811 // Parse suffixes: 2812 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2813 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2814 bool Preprocessed = XValue.consume_back("-cpp-output"); 2815 bool ModuleMap = XValue.consume_back("-module-map"); 2816 // Detect and consume the header indicator. 2817 bool IsHeader = 2818 XValue != "precompiled-header" && XValue.consume_back("-header"); 2819 2820 // If we have c++-{user,system}-header, that indicates a header unit input 2821 // likewise, if the user put -fmodule-header together with a header with an 2822 // absolute path (header-unit-header). 2823 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2824 if (IsHeader || Preprocessed) { 2825 if (XValue.consume_back("-header-unit")) 2826 HUK = InputKind::HeaderUnit_Abs; 2827 else if (XValue.consume_back("-system")) 2828 HUK = InputKind::HeaderUnit_System; 2829 else if (XValue.consume_back("-user")) 2830 HUK = InputKind::HeaderUnit_User; 2831 } 2832 2833 // The value set by this processing is an un-preprocessed source which is 2834 // not intended to be a module map or header unit. 2835 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2836 HUK == InputKind::HeaderUnit_None; 2837 2838 // Principal languages. 2839 DashX = llvm::StringSwitch<InputKind>(XValue) 2840 .Case("c", Language::C) 2841 .Case("cl", Language::OpenCL) 2842 .Case("clcpp", Language::OpenCLCXX) 2843 .Case("cuda", Language::CUDA) 2844 .Case("hip", Language::HIP) 2845 .Case("c++", Language::CXX) 2846 .Case("objective-c", Language::ObjC) 2847 .Case("objective-c++", Language::ObjCXX) 2848 .Case("renderscript", Language::RenderScript) 2849 .Case("hlsl", Language::HLSL) 2850 .Default(Language::Unknown); 2851 2852 // "objc[++]-cpp-output" is an acceptable synonym for 2853 // "objective-c[++]-cpp-output". 2854 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2855 HUK == InputKind::HeaderUnit_None) 2856 DashX = llvm::StringSwitch<InputKind>(XValue) 2857 .Case("objc", Language::ObjC) 2858 .Case("objc++", Language::ObjCXX) 2859 .Default(Language::Unknown); 2860 2861 // Some special cases cannot be combined with suffixes. 2862 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2863 HUK == InputKind::HeaderUnit_None) 2864 DashX = llvm::StringSwitch<InputKind>(XValue) 2865 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2866 .Case("assembler-with-cpp", Language::Asm) 2867 .Cases("ast", "pcm", "precompiled-header", 2868 InputKind(Language::Unknown, InputKind::Precompiled)) 2869 .Case("ir", Language::LLVM_IR) 2870 .Default(Language::Unknown); 2871 2872 if (DashX.isUnknown()) 2873 Diags.Report(diag::err_drv_invalid_value) 2874 << A->getAsString(Args) << A->getValue(); 2875 2876 if (Preprocessed) 2877 DashX = DashX.getPreprocessed(); 2878 // A regular header is considered mutually exclusive with a header unit. 2879 if (HUK != InputKind::HeaderUnit_None) { 2880 DashX = DashX.withHeaderUnit(HUK); 2881 IsHeaderFile = true; 2882 } else if (IsHeaderFile) 2883 DashX = DashX.getHeader(); 2884 if (ModuleMap) 2885 DashX = DashX.withFormat(InputKind::ModuleMap); 2886 } 2887 2888 // '-' is the default input if none is given. 2889 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2890 Opts.Inputs.clear(); 2891 if (Inputs.empty()) 2892 Inputs.push_back("-"); 2893 2894 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2895 Inputs.size() > 1) 2896 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2897 2898 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2899 InputKind IK = DashX; 2900 if (IK.isUnknown()) { 2901 IK = FrontendOptions::getInputKindForExtension( 2902 StringRef(Inputs[i]).rsplit('.').second); 2903 // FIXME: Warn on this? 2904 if (IK.isUnknown()) 2905 IK = Language::C; 2906 // FIXME: Remove this hack. 2907 if (i == 0) 2908 DashX = IK; 2909 } 2910 2911 bool IsSystem = false; 2912 2913 // The -emit-module action implicitly takes a module map. 2914 if (Opts.ProgramAction == frontend::GenerateModule && 2915 IK.getFormat() == InputKind::Source) { 2916 IK = IK.withFormat(InputKind::ModuleMap); 2917 IsSystem = Opts.IsSystemModule; 2918 } 2919 2920 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2921 } 2922 2923 Opts.DashX = DashX; 2924 2925 return Diags.getNumErrors() == NumErrorsBefore; 2926 } 2927 2928 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2929 void *MainAddr) { 2930 std::string ClangExecutable = 2931 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2932 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2933 } 2934 2935 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2936 SmallVectorImpl<const char *> &Args, 2937 CompilerInvocation::StringAllocator SA) { 2938 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2939 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2940 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2941 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2942 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2943 MERGER, EXTRACTOR, TABLE_INDEX) \ 2944 GENERATE_OPTION_WITH_MARSHALLING( \ 2945 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2946 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2947 #include "clang/Driver/Options.inc" 2948 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2949 2950 if (Opts.UseLibcxx) 2951 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2952 2953 if (!Opts.ModuleCachePath.empty()) 2954 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2955 2956 for (const auto &File : Opts.PrebuiltModuleFiles) 2957 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2958 2959 for (const auto &Path : Opts.PrebuiltModulePaths) 2960 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2961 2962 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2963 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2964 2965 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2966 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2967 llvm::Optional<bool> IsFramework, 2968 llvm::Optional<bool> IgnoreSysRoot) { 2969 return llvm::is_contained(Groups, Entry.Group) && 2970 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2971 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2972 }; 2973 2974 auto It = Opts.UserEntries.begin(); 2975 auto End = Opts.UserEntries.end(); 2976 2977 // Add -I..., -F..., and -index-header-map options in order. 2978 for (; It < End && 2979 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2980 ++It) { 2981 OptSpecifier Opt = [It, Matches]() { 2982 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2983 return OPT_F; 2984 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2985 return OPT_I; 2986 if (Matches(*It, frontend::Angled, true, true)) 2987 return OPT_F; 2988 if (Matches(*It, frontend::Angled, false, true)) 2989 return OPT_I; 2990 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2991 }(); 2992 2993 if (It->Group == frontend::IndexHeaderMap) 2994 GenerateArg(Args, OPT_index_header_map, SA); 2995 GenerateArg(Args, Opt, It->Path, SA); 2996 }; 2997 2998 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2999 // have already been generated as "-I[xx]yy". If that's the case, their 3000 // position on command line was such that this has no semantic impact on 3001 // include paths. 3002 for (; It < End && 3003 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3004 ++It) { 3005 OptSpecifier Opt = 3006 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3007 GenerateArg(Args, Opt, It->Path, SA); 3008 } 3009 3010 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3011 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3012 // command line was such that this has no semantic impact on include paths. 3013 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3014 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3015 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3016 GenerateArg(Args, OPT_iquote, It->Path, SA); 3017 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3018 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3019 It->Path, SA); 3020 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3021 GenerateArg(Args, OPT_iframework, It->Path, SA); 3022 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3023 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3024 3025 // Add the paths for the various language specific isystem flags. 3026 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3027 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3028 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3029 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3030 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3031 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3032 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3033 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3034 3035 // Add the internal paths from a driver that detects standard include paths. 3036 // Note: Some paths that came from "-internal-isystem" arguments may have 3037 // already been generated as "-isystem". If that's the case, their position on 3038 // command line was such that this has no semantic impact on include paths. 3039 for (; It < End && 3040 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3041 ++It) { 3042 OptSpecifier Opt = It->Group == frontend::System 3043 ? OPT_internal_isystem 3044 : OPT_internal_externc_isystem; 3045 GenerateArg(Args, Opt, It->Path, SA); 3046 } 3047 3048 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3049 3050 // Add the path prefixes which are implicitly treated as being system headers. 3051 for (const auto &P : Opts.SystemHeaderPrefixes) { 3052 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3053 : OPT_no_system_header_prefix; 3054 GenerateArg(Args, Opt, P.Prefix, SA); 3055 } 3056 3057 for (const std::string &F : Opts.VFSOverlayFiles) 3058 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3059 } 3060 3061 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3062 DiagnosticsEngine &Diags, 3063 const std::string &WorkingDir) { 3064 unsigned NumErrorsBefore = Diags.getNumErrors(); 3065 3066 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3067 3068 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3069 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3070 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3071 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3072 MERGER, EXTRACTOR, TABLE_INDEX) \ 3073 PARSE_OPTION_WITH_MARSHALLING( \ 3074 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3075 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3076 #include "clang/Driver/Options.inc" 3077 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3078 3079 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3080 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3081 3082 // Canonicalize -fmodules-cache-path before storing it. 3083 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3084 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3085 if (WorkingDir.empty()) 3086 llvm::sys::fs::make_absolute(P); 3087 else 3088 llvm::sys::fs::make_absolute(WorkingDir, P); 3089 } 3090 llvm::sys::path::remove_dots(P); 3091 Opts.ModuleCachePath = std::string(P.str()); 3092 3093 // Only the -fmodule-file=<name>=<file> form. 3094 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3095 StringRef Val = A->getValue(); 3096 if (Val.contains('=')) { 3097 auto Split = Val.split('='); 3098 Opts.PrebuiltModuleFiles.insert( 3099 {std::string(Split.first), std::string(Split.second)}); 3100 } 3101 } 3102 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3103 Opts.AddPrebuiltModulePath(A->getValue()); 3104 3105 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3106 StringRef MacroDef = A->getValue(); 3107 Opts.ModulesIgnoreMacros.insert( 3108 llvm::CachedHashString(MacroDef.split('=').first)); 3109 } 3110 3111 // Add -I..., -F..., and -index-header-map options in order. 3112 bool IsIndexHeaderMap = false; 3113 bool IsSysrootSpecified = 3114 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3115 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3116 if (A->getOption().matches(OPT_index_header_map)) { 3117 // -index-header-map applies to the next -I or -F. 3118 IsIndexHeaderMap = true; 3119 continue; 3120 } 3121 3122 frontend::IncludeDirGroup Group = 3123 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3124 3125 bool IsFramework = A->getOption().matches(OPT_F); 3126 std::string Path = A->getValue(); 3127 3128 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3129 SmallString<32> Buffer; 3130 llvm::sys::path::append(Buffer, Opts.Sysroot, 3131 llvm::StringRef(A->getValue()).substr(1)); 3132 Path = std::string(Buffer.str()); 3133 } 3134 3135 Opts.AddPath(Path, Group, IsFramework, 3136 /*IgnoreSysroot*/ true); 3137 IsIndexHeaderMap = false; 3138 } 3139 3140 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3141 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3142 for (const auto *A : 3143 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3144 if (A->getOption().matches(OPT_iprefix)) 3145 Prefix = A->getValue(); 3146 else if (A->getOption().matches(OPT_iwithprefix)) 3147 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3148 else 3149 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3150 } 3151 3152 for (const auto *A : Args.filtered(OPT_idirafter)) 3153 Opts.AddPath(A->getValue(), frontend::After, false, true); 3154 for (const auto *A : Args.filtered(OPT_iquote)) 3155 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3156 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3157 Opts.AddPath(A->getValue(), frontend::System, false, 3158 !A->getOption().matches(OPT_iwithsysroot)); 3159 for (const auto *A : Args.filtered(OPT_iframework)) 3160 Opts.AddPath(A->getValue(), frontend::System, true, true); 3161 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3162 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3163 /*IgnoreSysRoot=*/false); 3164 3165 // Add the paths for the various language specific isystem flags. 3166 for (const auto *A : Args.filtered(OPT_c_isystem)) 3167 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3168 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3169 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3170 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3171 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3172 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3173 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3174 3175 // Add the internal paths from a driver that detects standard include paths. 3176 for (const auto *A : 3177 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3178 frontend::IncludeDirGroup Group = frontend::System; 3179 if (A->getOption().matches(OPT_internal_externc_isystem)) 3180 Group = frontend::ExternCSystem; 3181 Opts.AddPath(A->getValue(), Group, false, true); 3182 } 3183 3184 // Add the path prefixes which are implicitly treated as being system headers. 3185 for (const auto *A : 3186 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3187 Opts.AddSystemHeaderPrefix( 3188 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3189 3190 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3191 Opts.AddVFSOverlayFile(A->getValue()); 3192 3193 return Diags.getNumErrors() == NumErrorsBefore; 3194 } 3195 3196 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3197 const llvm::Triple &T, 3198 std::vector<std::string> &Includes, 3199 LangStandard::Kind LangStd) { 3200 // Set some properties which depend solely on the input kind; it would be nice 3201 // to move these to the language standard, and have the driver resolve the 3202 // input kind + language standard. 3203 // 3204 // FIXME: Perhaps a better model would be for a single source file to have 3205 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3206 // simultaneously active? 3207 if (IK.getLanguage() == Language::Asm) { 3208 Opts.AsmPreprocessor = 1; 3209 } else if (IK.isObjectiveC()) { 3210 Opts.ObjC = 1; 3211 } 3212 3213 if (LangStd == LangStandard::lang_unspecified) { 3214 // Based on the base language, pick one. 3215 switch (IK.getLanguage()) { 3216 case Language::Unknown: 3217 case Language::LLVM_IR: 3218 llvm_unreachable("Invalid input kind!"); 3219 case Language::OpenCL: 3220 LangStd = LangStandard::lang_opencl12; 3221 break; 3222 case Language::OpenCLCXX: 3223 LangStd = LangStandard::lang_openclcpp10; 3224 break; 3225 case Language::CUDA: 3226 LangStd = LangStandard::lang_cuda; 3227 break; 3228 case Language::Asm: 3229 case Language::C: 3230 #if defined(CLANG_DEFAULT_STD_C) 3231 LangStd = CLANG_DEFAULT_STD_C; 3232 #else 3233 // The PS4 uses C99 as the default C standard. 3234 if (T.isPS4()) 3235 LangStd = LangStandard::lang_gnu99; 3236 else 3237 LangStd = LangStandard::lang_gnu17; 3238 #endif 3239 break; 3240 case Language::ObjC: 3241 #if defined(CLANG_DEFAULT_STD_C) 3242 LangStd = CLANG_DEFAULT_STD_C; 3243 #else 3244 LangStd = LangStandard::lang_gnu11; 3245 #endif 3246 break; 3247 case Language::CXX: 3248 case Language::ObjCXX: 3249 #if defined(CLANG_DEFAULT_STD_CXX) 3250 LangStd = CLANG_DEFAULT_STD_CXX; 3251 #else 3252 LangStd = LangStandard::lang_gnucxx14; 3253 #endif 3254 break; 3255 case Language::RenderScript: 3256 LangStd = LangStandard::lang_c99; 3257 break; 3258 case Language::HIP: 3259 LangStd = LangStandard::lang_hip; 3260 break; 3261 case Language::HLSL: 3262 LangStd = LangStandard::lang_hlsl2021; 3263 break; 3264 } 3265 } 3266 3267 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3268 Opts.LangStd = LangStd; 3269 Opts.LineComment = Std.hasLineComments(); 3270 Opts.C99 = Std.isC99(); 3271 Opts.C11 = Std.isC11(); 3272 Opts.C17 = Std.isC17(); 3273 Opts.C2x = Std.isC2x(); 3274 Opts.CPlusPlus = Std.isCPlusPlus(); 3275 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3276 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3277 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3278 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3279 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3280 Opts.GNUMode = Std.isGNUMode(); 3281 Opts.GNUCVersion = 0; 3282 Opts.HexFloats = Std.hasHexFloats(); 3283 Opts.ImplicitInt = Std.hasImplicitInt(); 3284 3285 Opts.HLSL = IK.getLanguage() == Language::HLSL; 3286 3287 // Set OpenCL Version. 3288 Opts.OpenCL = Std.isOpenCL(); 3289 if (LangStd == LangStandard::lang_opencl10) 3290 Opts.OpenCLVersion = 100; 3291 else if (LangStd == LangStandard::lang_opencl11) 3292 Opts.OpenCLVersion = 110; 3293 else if (LangStd == LangStandard::lang_opencl12) 3294 Opts.OpenCLVersion = 120; 3295 else if (LangStd == LangStandard::lang_opencl20) 3296 Opts.OpenCLVersion = 200; 3297 else if (LangStd == LangStandard::lang_opencl30) 3298 Opts.OpenCLVersion = 300; 3299 else if (LangStd == LangStandard::lang_openclcpp10) 3300 Opts.OpenCLCPlusPlusVersion = 100; 3301 else if (LangStd == LangStandard::lang_openclcpp2021) 3302 Opts.OpenCLCPlusPlusVersion = 202100; 3303 else if (LangStd == LangStandard::lang_hlsl2015) 3304 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2015; 3305 else if (LangStd == LangStandard::lang_hlsl2016) 3306 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2016; 3307 else if (LangStd == LangStandard::lang_hlsl2017) 3308 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2017; 3309 else if (LangStd == LangStandard::lang_hlsl2018) 3310 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2018; 3311 else if (LangStd == LangStandard::lang_hlsl2021) 3312 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2021; 3313 else if (LangStd == LangStandard::lang_hlsl202x) 3314 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_202x; 3315 3316 // OpenCL has some additional defaults. 3317 if (Opts.OpenCL) { 3318 Opts.AltiVec = 0; 3319 Opts.ZVector = 0; 3320 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3321 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3322 Opts.OpenCLPipes = Opts.getOpenCLCompatibleVersion() == 200; 3323 Opts.OpenCLGenericAddressSpace = Opts.getOpenCLCompatibleVersion() == 200; 3324 3325 // Include default header file for OpenCL. 3326 if (Opts.IncludeDefaultHeader) { 3327 if (Opts.DeclareOpenCLBuiltins) { 3328 // Only include base header file for builtin types and constants. 3329 Includes.push_back("opencl-c-base.h"); 3330 } else { 3331 Includes.push_back("opencl-c.h"); 3332 } 3333 } 3334 } 3335 3336 Opts.HIP = IK.getLanguage() == Language::HIP; 3337 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3338 if (Opts.HIP) { 3339 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3340 // fuses multiplication/addition instructions without contract flag from 3341 // device library functions in LLVM bitcode, which causes accuracy loss in 3342 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3343 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3344 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3345 // FP contract option is used to allow fuse across statements in frontend 3346 // whereas respecting contract flag in backend. 3347 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3348 } else if (Opts.CUDA) { 3349 // Allow fuse across statements disregarding pragmas. 3350 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3351 } 3352 3353 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3354 3355 // OpenCL, C++ and C2x have bool, true, false keywords. 3356 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus || Opts.C2x; 3357 3358 // OpenCL has half keyword 3359 Opts.Half = Opts.OpenCL; 3360 } 3361 3362 /// Check if input file kind and language standard are compatible. 3363 static bool IsInputCompatibleWithStandard(InputKind IK, 3364 const LangStandard &S) { 3365 switch (IK.getLanguage()) { 3366 case Language::Unknown: 3367 case Language::LLVM_IR: 3368 llvm_unreachable("should not parse language flags for this input"); 3369 3370 case Language::C: 3371 case Language::ObjC: 3372 case Language::RenderScript: 3373 return S.getLanguage() == Language::C; 3374 3375 case Language::OpenCL: 3376 return S.getLanguage() == Language::OpenCL || 3377 S.getLanguage() == Language::OpenCLCXX; 3378 3379 case Language::OpenCLCXX: 3380 return S.getLanguage() == Language::OpenCLCXX; 3381 3382 case Language::CXX: 3383 case Language::ObjCXX: 3384 return S.getLanguage() == Language::CXX; 3385 3386 case Language::CUDA: 3387 // FIXME: What -std= values should be permitted for CUDA compilations? 3388 return S.getLanguage() == Language::CUDA || 3389 S.getLanguage() == Language::CXX; 3390 3391 case Language::HIP: 3392 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3393 3394 case Language::Asm: 3395 // Accept (and ignore) all -std= values. 3396 // FIXME: The -std= value is not ignored; it affects the tokenization 3397 // and preprocessing rules if we're preprocessing this asm input. 3398 return true; 3399 3400 case Language::HLSL: 3401 return S.getLanguage() == Language::HLSL; 3402 } 3403 3404 llvm_unreachable("unexpected input language"); 3405 } 3406 3407 /// Get language name for given input kind. 3408 static StringRef GetInputKindName(InputKind IK) { 3409 switch (IK.getLanguage()) { 3410 case Language::C: 3411 return "C"; 3412 case Language::ObjC: 3413 return "Objective-C"; 3414 case Language::CXX: 3415 return "C++"; 3416 case Language::ObjCXX: 3417 return "Objective-C++"; 3418 case Language::OpenCL: 3419 return "OpenCL"; 3420 case Language::OpenCLCXX: 3421 return "C++ for OpenCL"; 3422 case Language::CUDA: 3423 return "CUDA"; 3424 case Language::RenderScript: 3425 return "RenderScript"; 3426 case Language::HIP: 3427 return "HIP"; 3428 3429 case Language::Asm: 3430 return "Asm"; 3431 case Language::LLVM_IR: 3432 return "LLVM IR"; 3433 3434 case Language::HLSL: 3435 return "HLSL"; 3436 3437 case Language::Unknown: 3438 break; 3439 } 3440 llvm_unreachable("unknown input language"); 3441 } 3442 3443 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3444 SmallVectorImpl<const char *> &Args, 3445 StringAllocator SA, 3446 const llvm::Triple &T, InputKind IK) { 3447 if (IK.getFormat() == InputKind::Precompiled || 3448 IK.getLanguage() == Language::LLVM_IR) { 3449 if (Opts.ObjCAutoRefCount) 3450 GenerateArg(Args, OPT_fobjc_arc, SA); 3451 if (Opts.PICLevel != 0) 3452 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3453 if (Opts.PIE) 3454 GenerateArg(Args, OPT_pic_is_pie, SA); 3455 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3456 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3457 3458 return; 3459 } 3460 3461 OptSpecifier StdOpt; 3462 switch (Opts.LangStd) { 3463 case LangStandard::lang_opencl10: 3464 case LangStandard::lang_opencl11: 3465 case LangStandard::lang_opencl12: 3466 case LangStandard::lang_opencl20: 3467 case LangStandard::lang_opencl30: 3468 case LangStandard::lang_openclcpp10: 3469 case LangStandard::lang_openclcpp2021: 3470 StdOpt = OPT_cl_std_EQ; 3471 break; 3472 default: 3473 StdOpt = OPT_std_EQ; 3474 break; 3475 } 3476 3477 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3478 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3479 3480 if (Opts.IncludeDefaultHeader) 3481 GenerateArg(Args, OPT_finclude_default_header, SA); 3482 if (Opts.DeclareOpenCLBuiltins) 3483 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3484 3485 const LangOptions *LangOpts = &Opts; 3486 3487 #define LANG_OPTION_WITH_MARSHALLING( \ 3488 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3489 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3490 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3491 MERGER, EXTRACTOR, TABLE_INDEX) \ 3492 GENERATE_OPTION_WITH_MARSHALLING( \ 3493 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3494 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3495 #include "clang/Driver/Options.inc" 3496 #undef LANG_OPTION_WITH_MARSHALLING 3497 3498 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3499 3500 if (Opts.ObjC) { 3501 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3502 3503 if (Opts.GC == LangOptions::GCOnly) 3504 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3505 else if (Opts.GC == LangOptions::HybridGC) 3506 GenerateArg(Args, OPT_fobjc_gc, SA); 3507 else if (Opts.ObjCAutoRefCount == 1) 3508 GenerateArg(Args, OPT_fobjc_arc, SA); 3509 3510 if (Opts.ObjCWeakRuntime) 3511 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3512 3513 if (Opts.ObjCWeak) 3514 GenerateArg(Args, OPT_fobjc_weak, SA); 3515 3516 if (Opts.ObjCSubscriptingLegacyRuntime) 3517 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3518 } 3519 3520 if (Opts.GNUCVersion != 0) { 3521 unsigned Major = Opts.GNUCVersion / 100 / 100; 3522 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3523 unsigned Patch = Opts.GNUCVersion % 100; 3524 GenerateArg(Args, OPT_fgnuc_version_EQ, 3525 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3526 } 3527 3528 if (Opts.IgnoreXCOFFVisibility) 3529 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3530 3531 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3532 GenerateArg(Args, OPT_ftrapv, SA); 3533 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3534 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3535 GenerateArg(Args, OPT_fwrapv, SA); 3536 } 3537 3538 if (Opts.MSCompatibilityVersion != 0) { 3539 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3540 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3541 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3542 GenerateArg(Args, OPT_fms_compatibility_version, 3543 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3544 } 3545 3546 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3547 if (!Opts.Trigraphs) 3548 GenerateArg(Args, OPT_fno_trigraphs, SA); 3549 } else { 3550 if (Opts.Trigraphs) 3551 GenerateArg(Args, OPT_ftrigraphs, SA); 3552 } 3553 3554 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3555 GenerateArg(Args, OPT_fblocks, SA); 3556 3557 if (Opts.ConvergentFunctions && 3558 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3559 GenerateArg(Args, OPT_fconvergent_functions, SA); 3560 3561 if (Opts.NoBuiltin && !Opts.Freestanding) 3562 GenerateArg(Args, OPT_fno_builtin, SA); 3563 3564 if (!Opts.NoBuiltin) 3565 for (const auto &Func : Opts.NoBuiltinFuncs) 3566 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3567 3568 if (Opts.LongDoubleSize == 128) 3569 GenerateArg(Args, OPT_mlong_double_128, SA); 3570 else if (Opts.LongDoubleSize == 64) 3571 GenerateArg(Args, OPT_mlong_double_64, SA); 3572 else if (Opts.LongDoubleSize == 80) 3573 GenerateArg(Args, OPT_mlong_double_80, SA); 3574 3575 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3576 3577 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3578 // '-fopenmp-targets='. 3579 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3580 GenerateArg(Args, OPT_fopenmp, SA); 3581 3582 if (Opts.OpenMP != 50) 3583 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3584 3585 if (!Opts.OpenMPUseTLS) 3586 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3587 3588 if (Opts.OpenMPIsDevice) 3589 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3590 3591 if (Opts.OpenMPIRBuilder) 3592 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3593 } 3594 3595 if (Opts.OpenMPSimd) { 3596 GenerateArg(Args, OPT_fopenmp_simd, SA); 3597 3598 if (Opts.OpenMP != 50) 3599 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3600 } 3601 3602 if (Opts.OpenMPThreadSubscription) 3603 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3604 3605 if (Opts.OpenMPTeamSubscription) 3606 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3607 3608 if (Opts.OpenMPTargetDebug != 0) 3609 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3610 Twine(Opts.OpenMPTargetDebug), SA); 3611 3612 if (Opts.OpenMPCUDANumSMs != 0) 3613 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3614 Twine(Opts.OpenMPCUDANumSMs), SA); 3615 3616 if (Opts.OpenMPCUDABlocksPerSM != 0) 3617 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3618 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3619 3620 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3621 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3622 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3623 3624 if (!Opts.OMPTargetTriples.empty()) { 3625 std::string Targets; 3626 llvm::raw_string_ostream OS(Targets); 3627 llvm::interleave( 3628 Opts.OMPTargetTriples, OS, 3629 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3630 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3631 } 3632 3633 if (!Opts.OMPHostIRFile.empty()) 3634 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3635 3636 if (Opts.OpenMPCUDAMode) 3637 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3638 3639 if (Opts.OpenMPCUDAForceFullRuntime) 3640 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3641 3642 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3643 // generated from CodeGenOptions. 3644 3645 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3646 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3647 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3648 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3649 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3650 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3651 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3652 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3653 3654 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3655 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3656 3657 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3658 for (const std::string &F : Opts.NoSanitizeFiles) 3659 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3660 3661 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3662 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3663 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3664 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3665 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3666 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3667 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3668 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3669 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3670 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3671 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3672 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3673 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3674 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3675 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver13) 3676 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "13.0", SA); 3677 3678 if (Opts.getSignReturnAddressScope() == 3679 LangOptions::SignReturnAddressScopeKind::All) 3680 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3681 else if (Opts.getSignReturnAddressScope() == 3682 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3683 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3684 3685 if (Opts.getSignReturnAddressKey() == 3686 LangOptions::SignReturnAddressKeyKind::BKey) 3687 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3688 3689 if (Opts.CXXABI) 3690 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3691 SA); 3692 3693 if (Opts.RelativeCXXABIVTables) 3694 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3695 else 3696 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3697 3698 for (const auto &MP : Opts.MacroPrefixMap) 3699 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3700 } 3701 3702 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3703 InputKind IK, const llvm::Triple &T, 3704 std::vector<std::string> &Includes, 3705 DiagnosticsEngine &Diags) { 3706 unsigned NumErrorsBefore = Diags.getNumErrors(); 3707 3708 if (IK.getFormat() == InputKind::Precompiled || 3709 IK.getLanguage() == Language::LLVM_IR) { 3710 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3711 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3712 // what the input type is. 3713 if (Args.hasArg(OPT_fobjc_arc)) 3714 Opts.ObjCAutoRefCount = 1; 3715 // PICLevel and PIELevel are needed during code generation and this should 3716 // be set regardless of the input type. 3717 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3718 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3719 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3720 Diags, Opts.Sanitize); 3721 3722 return Diags.getNumErrors() == NumErrorsBefore; 3723 } 3724 3725 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3726 // FIXME: Should we really be parsing this for an Language::Asm input? 3727 3728 // FIXME: Cleanup per-file based stuff. 3729 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3730 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3731 LangStd = LangStandard::getLangKind(A->getValue()); 3732 if (LangStd == LangStandard::lang_unspecified) { 3733 Diags.Report(diag::err_drv_invalid_value) 3734 << A->getAsString(Args) << A->getValue(); 3735 // Report supported standards with short description. 3736 for (unsigned KindValue = 0; 3737 KindValue != LangStandard::lang_unspecified; 3738 ++KindValue) { 3739 const LangStandard &Std = LangStandard::getLangStandardForKind( 3740 static_cast<LangStandard::Kind>(KindValue)); 3741 if (IsInputCompatibleWithStandard(IK, Std)) { 3742 auto Diag = Diags.Report(diag::note_drv_use_standard); 3743 Diag << Std.getName() << Std.getDescription(); 3744 unsigned NumAliases = 0; 3745 #define LANGSTANDARD(id, name, lang, desc, features) 3746 #define LANGSTANDARD_ALIAS(id, alias) \ 3747 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3748 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3749 #include "clang/Basic/LangStandards.def" 3750 Diag << NumAliases; 3751 #define LANGSTANDARD(id, name, lang, desc, features) 3752 #define LANGSTANDARD_ALIAS(id, alias) \ 3753 if (KindValue == LangStandard::lang_##id) Diag << alias; 3754 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3755 #include "clang/Basic/LangStandards.def" 3756 } 3757 } 3758 } else { 3759 // Valid standard, check to make sure language and standard are 3760 // compatible. 3761 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3762 if (!IsInputCompatibleWithStandard(IK, Std)) { 3763 Diags.Report(diag::err_drv_argument_not_allowed_with) 3764 << A->getAsString(Args) << GetInputKindName(IK); 3765 } 3766 } 3767 } 3768 3769 // -cl-std only applies for OpenCL language standards. 3770 // Override the -std option in this case. 3771 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3772 LangStandard::Kind OpenCLLangStd 3773 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3774 .Cases("cl", "CL", LangStandard::lang_opencl10) 3775 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3776 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3777 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3778 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3779 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3780 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3781 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3782 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3783 .Default(LangStandard::lang_unspecified); 3784 3785 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3786 Diags.Report(diag::err_drv_invalid_value) 3787 << A->getAsString(Args) << A->getValue(); 3788 } 3789 else 3790 LangStd = OpenCLLangStd; 3791 } 3792 3793 // These need to be parsed now. They are used to set OpenCL defaults. 3794 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3795 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3796 3797 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3798 3799 // The key paths of codegen options defined in Options.td start with 3800 // "LangOpts->". Let's provide the expected variable name and type. 3801 LangOptions *LangOpts = &Opts; 3802 3803 #define LANG_OPTION_WITH_MARSHALLING( \ 3804 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3805 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3806 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3807 MERGER, EXTRACTOR, TABLE_INDEX) \ 3808 PARSE_OPTION_WITH_MARSHALLING( \ 3809 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3810 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3811 #include "clang/Driver/Options.inc" 3812 #undef LANG_OPTION_WITH_MARSHALLING 3813 3814 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3815 StringRef Name = A->getValue(); 3816 if (Name == "full" || Name == "branch") { 3817 Opts.CFProtectionBranch = 1; 3818 } 3819 } 3820 3821 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3822 !Args.hasArg(OPT_sycl_std_EQ)) { 3823 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3824 // provide -sycl-std=, we want to default it to whatever the default SYCL 3825 // version is. I could not find a way to express this with the options 3826 // tablegen because we still want this value to be SYCL_None when the user 3827 // is not in device or host mode. 3828 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3829 } 3830 3831 if (Opts.ObjC) { 3832 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3833 StringRef value = arg->getValue(); 3834 if (Opts.ObjCRuntime.tryParse(value)) 3835 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3836 } 3837 3838 if (Args.hasArg(OPT_fobjc_gc_only)) 3839 Opts.setGC(LangOptions::GCOnly); 3840 else if (Args.hasArg(OPT_fobjc_gc)) 3841 Opts.setGC(LangOptions::HybridGC); 3842 else if (Args.hasArg(OPT_fobjc_arc)) { 3843 Opts.ObjCAutoRefCount = 1; 3844 if (!Opts.ObjCRuntime.allowsARC()) 3845 Diags.Report(diag::err_arc_unsupported_on_runtime); 3846 } 3847 3848 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3849 // whether the feature is actually enabled. This is predominantly 3850 // determined by -fobjc-runtime, but we allow it to be overridden 3851 // from the command line for testing purposes. 3852 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3853 Opts.ObjCWeakRuntime = 1; 3854 else 3855 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3856 3857 // ObjCWeak determines whether __weak is actually enabled. 3858 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3859 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3860 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3861 assert(!Opts.ObjCWeak); 3862 } else if (Opts.getGC() != LangOptions::NonGC) { 3863 Diags.Report(diag::err_objc_weak_with_gc); 3864 } else if (!Opts.ObjCWeakRuntime) { 3865 Diags.Report(diag::err_objc_weak_unsupported); 3866 } else { 3867 Opts.ObjCWeak = 1; 3868 } 3869 } else if (Opts.ObjCAutoRefCount) { 3870 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3871 } 3872 3873 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3874 Opts.ObjCSubscriptingLegacyRuntime = 3875 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3876 } 3877 3878 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3879 // Check that the version has 1 to 3 components and the minor and patch 3880 // versions fit in two decimal digits. 3881 VersionTuple GNUCVer; 3882 bool Invalid = GNUCVer.tryParse(A->getValue()); 3883 unsigned Major = GNUCVer.getMajor(); 3884 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3885 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3886 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3887 Diags.Report(diag::err_drv_invalid_value) 3888 << A->getAsString(Args) << A->getValue(); 3889 } 3890 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3891 } 3892 3893 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3894 // no -fvisibility=* option. 3895 // This is the reason why '-fvisibility' needs to be always generated: 3896 // its absence implies '-mignore-xcoff-visibility'. 3897 // 3898 // Suppose the original cc1 command line does contain '-fvisibility default': 3899 // '-mignore-xcoff-visibility' should not be implied. 3900 // * If '-fvisibility' is not generated (as most options with default values 3901 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3902 // the command line semantics. 3903 // * If '-fvisibility' is generated regardless of its presence and value, 3904 // '-mignore-xcoff-visibility' won't be implied and the command line 3905 // semantics are kept intact. 3906 // 3907 // When the original cc1 command line does **not** contain '-fvisibility', 3908 // '-mignore-xcoff-visibility' is implied. The generated command line will 3909 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3910 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3911 // produce the same arguments. 3912 3913 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3914 !Args.hasArg(OPT_fvisibility))) 3915 Opts.IgnoreXCOFFVisibility = 1; 3916 3917 if (Args.hasArg(OPT_ftrapv)) { 3918 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3919 // Set the handler, if one is specified. 3920 Opts.OverflowHandler = 3921 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3922 } 3923 else if (Args.hasArg(OPT_fwrapv)) 3924 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3925 3926 Opts.MSCompatibilityVersion = 0; 3927 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3928 VersionTuple VT; 3929 if (VT.tryParse(A->getValue())) 3930 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3931 << A->getValue(); 3932 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3933 VT.getMinor().getValueOr(0) * 100000 + 3934 VT.getSubminor().getValueOr(0); 3935 } 3936 3937 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3938 // is specified, or -std is set to a conforming mode. 3939 // Trigraphs are disabled by default in c++1z onwards. 3940 // For z/OS, trigraphs are enabled by default (without regard to the above). 3941 Opts.Trigraphs = 3942 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3943 Opts.Trigraphs = 3944 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3945 3946 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3947 && Opts.OpenCLVersion == 200); 3948 3949 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3950 Opts.SYCLIsDevice || 3951 Args.hasArg(OPT_fconvergent_functions); 3952 3953 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3954 if (!Opts.NoBuiltin) 3955 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3956 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3957 if (A->getOption().matches(options::OPT_mlong_double_64)) 3958 Opts.LongDoubleSize = 64; 3959 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3960 Opts.LongDoubleSize = 80; 3961 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3962 Opts.LongDoubleSize = 128; 3963 else 3964 Opts.LongDoubleSize = 0; 3965 } 3966 if (Opts.FastRelaxedMath) 3967 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3968 3969 llvm::sort(Opts.ModuleFeatures); 3970 3971 // -mrtd option 3972 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3973 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3974 Diags.Report(diag::err_drv_argument_not_allowed_with) 3975 << A->getSpelling() << "-fdefault-calling-conv"; 3976 else { 3977 if (T.getArch() != llvm::Triple::x86) 3978 Diags.Report(diag::err_drv_argument_not_allowed_with) 3979 << A->getSpelling() << T.getTriple(); 3980 else 3981 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3982 } 3983 } 3984 3985 // Check if -fopenmp is specified and set default version to 5.0. 3986 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3987 // Check if -fopenmp-simd is specified. 3988 bool IsSimdSpecified = 3989 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3990 /*Default=*/false); 3991 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3992 Opts.OpenMPUseTLS = 3993 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3994 Opts.OpenMPIsDevice = 3995 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3996 Opts.OpenMPIRBuilder = 3997 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3998 bool IsTargetSpecified = 3999 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 4000 4001 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 4002 4003 if (Opts.OpenMP || Opts.OpenMPSimd) { 4004 if (int Version = getLastArgIntValue( 4005 Args, OPT_fopenmp_version_EQ, 4006 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 4007 Opts.OpenMP = Version; 4008 // Provide diagnostic when a given target is not expected to be an OpenMP 4009 // device or host. 4010 if (!Opts.OpenMPIsDevice) { 4011 switch (T.getArch()) { 4012 default: 4013 break; 4014 // Add unsupported host targets here: 4015 case llvm::Triple::nvptx: 4016 case llvm::Triple::nvptx64: 4017 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 4018 break; 4019 } 4020 } 4021 } 4022 4023 // Set the flag to prevent the implementation from emitting device exception 4024 // handling code for those requiring so. 4025 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 4026 Opts.OpenCLCPlusPlus) { 4027 4028 Opts.Exceptions = 0; 4029 Opts.CXXExceptions = 0; 4030 } 4031 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 4032 Opts.OpenMPCUDANumSMs = 4033 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 4034 Opts.OpenMPCUDANumSMs, Diags); 4035 Opts.OpenMPCUDABlocksPerSM = 4036 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 4037 Opts.OpenMPCUDABlocksPerSM, Diags); 4038 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 4039 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 4040 Opts.OpenMPCUDAReductionBufNum, Diags); 4041 } 4042 4043 // Set the value of the debugging flag used in the new offloading device RTL. 4044 // Set either by a specific value or to a default if not specified. 4045 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 4046 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 4047 Opts.OpenMPTargetDebug = getLastArgIntValue( 4048 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 4049 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 4050 Opts.OpenMPTargetDebug = 1; 4051 } 4052 4053 if (Opts.OpenMPIsDevice) { 4054 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 4055 Opts.OpenMPTeamSubscription = true; 4056 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 4057 Opts.OpenMPThreadSubscription = true; 4058 } 4059 4060 // Get the OpenMP target triples if any. 4061 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 4062 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 4063 auto getArchPtrSize = [](const llvm::Triple &T) { 4064 if (T.isArch16Bit()) 4065 return Arch16Bit; 4066 if (T.isArch32Bit()) 4067 return Arch32Bit; 4068 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 4069 return Arch64Bit; 4070 }; 4071 4072 for (unsigned i = 0; i < A->getNumValues(); ++i) { 4073 llvm::Triple TT(A->getValue(i)); 4074 4075 if (TT.getArch() == llvm::Triple::UnknownArch || 4076 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4077 TT.getArch() == llvm::Triple::nvptx || 4078 TT.getArch() == llvm::Triple::nvptx64 || 4079 TT.getArch() == llvm::Triple::amdgcn || 4080 TT.getArch() == llvm::Triple::x86 || 4081 TT.getArch() == llvm::Triple::x86_64)) 4082 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4083 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4084 Diags.Report(diag::err_drv_incompatible_omp_arch) 4085 << A->getValue(i) << T.str(); 4086 else 4087 Opts.OMPTargetTriples.push_back(TT); 4088 } 4089 } 4090 4091 // Get OpenMP host file path if any and report if a non existent file is 4092 // found 4093 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4094 Opts.OMPHostIRFile = A->getValue(); 4095 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4096 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4097 << Opts.OMPHostIRFile; 4098 } 4099 4100 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4101 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 4102 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4103 4104 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4105 Opts.OpenMPCUDAForceFullRuntime = 4106 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 4107 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 4108 4109 // FIXME: Eliminate this dependency. 4110 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4111 OptSize = getOptimizationLevelSize(Args); 4112 Opts.Optimize = Opt != 0; 4113 Opts.OptimizeSize = OptSize != 0; 4114 4115 // This is the __NO_INLINE__ define, which just depends on things like the 4116 // optimization level and -fno-inline, not actually whether the backend has 4117 // inlining enabled. 4118 Opts.NoInlineDefine = !Opts.Optimize; 4119 if (Arg *InlineArg = Args.getLastArg( 4120 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4121 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4122 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4123 Opts.NoInlineDefine = true; 4124 4125 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4126 StringRef Val = A->getValue(); 4127 if (Val == "fast") 4128 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4129 else if (Val == "on") 4130 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4131 else if (Val == "off") 4132 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4133 else if (Val == "fast-honor-pragmas") 4134 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4135 else 4136 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4137 } 4138 4139 // Parse -fsanitize= arguments. 4140 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4141 Diags, Opts.Sanitize); 4142 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4143 std::vector<std::string> systemIgnorelists = 4144 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4145 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4146 systemIgnorelists.begin(), 4147 systemIgnorelists.end()); 4148 4149 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4150 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4151 4152 StringRef Ver = A->getValue(); 4153 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4154 unsigned Major, Minor = 0; 4155 4156 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4157 // y or y.0 (4 <= y <= current version). 4158 if (!VerParts.first.startswith("0") && 4159 !VerParts.first.getAsInteger(10, Major) && 4160 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4161 (Major == 3 ? VerParts.second.size() == 1 && 4162 !VerParts.second.getAsInteger(10, Minor) 4163 : VerParts.first.size() == Ver.size() || 4164 VerParts.second == "0")) { 4165 // Got a valid version number. 4166 if (Major == 3 && Minor <= 8) 4167 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4168 else if (Major <= 4) 4169 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4170 else if (Major <= 6) 4171 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4172 else if (Major <= 7) 4173 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4174 else if (Major <= 9) 4175 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4176 else if (Major <= 11) 4177 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4178 else if (Major <= 12) 4179 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4180 else if (Major <= 13) 4181 Opts.setClangABICompat(LangOptions::ClangABI::Ver13); 4182 } else if (Ver != "latest") { 4183 Diags.Report(diag::err_drv_invalid_value) 4184 << A->getAsString(Args) << A->getValue(); 4185 } 4186 } 4187 4188 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4189 StringRef SignScope = A->getValue(); 4190 4191 if (SignScope.equals_insensitive("none")) 4192 Opts.setSignReturnAddressScope( 4193 LangOptions::SignReturnAddressScopeKind::None); 4194 else if (SignScope.equals_insensitive("all")) 4195 Opts.setSignReturnAddressScope( 4196 LangOptions::SignReturnAddressScopeKind::All); 4197 else if (SignScope.equals_insensitive("non-leaf")) 4198 Opts.setSignReturnAddressScope( 4199 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4200 else 4201 Diags.Report(diag::err_drv_invalid_value) 4202 << A->getAsString(Args) << SignScope; 4203 4204 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4205 StringRef SignKey = A->getValue(); 4206 if (!SignScope.empty() && !SignKey.empty()) { 4207 if (SignKey.equals_insensitive("a_key")) 4208 Opts.setSignReturnAddressKey( 4209 LangOptions::SignReturnAddressKeyKind::AKey); 4210 else if (SignKey.equals_insensitive("b_key")) 4211 Opts.setSignReturnAddressKey( 4212 LangOptions::SignReturnAddressKeyKind::BKey); 4213 else 4214 Diags.Report(diag::err_drv_invalid_value) 4215 << A->getAsString(Args) << SignKey; 4216 } 4217 } 4218 } 4219 4220 // The value can be empty, which indicates the system default should be used. 4221 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4222 if (!CXXABI.empty()) { 4223 if (!TargetCXXABI::isABI(CXXABI)) { 4224 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4225 } else { 4226 auto Kind = TargetCXXABI::getKind(CXXABI); 4227 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4228 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4229 else 4230 Opts.CXXABI = Kind; 4231 } 4232 } 4233 4234 Opts.RelativeCXXABIVTables = 4235 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4236 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4237 TargetCXXABI::usesRelativeVTables(T)); 4238 4239 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4240 auto Split = StringRef(A).split('='); 4241 Opts.MacroPrefixMap.insert( 4242 {std::string(Split.first), std::string(Split.second)}); 4243 } 4244 4245 // Error if -mvscale-min is unbounded. 4246 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4247 unsigned VScaleMin; 4248 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4249 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4250 } 4251 4252 return Diags.getNumErrors() == NumErrorsBefore; 4253 } 4254 4255 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4256 switch (Action) { 4257 case frontend::ASTDeclList: 4258 case frontend::ASTDump: 4259 case frontend::ASTPrint: 4260 case frontend::ASTView: 4261 case frontend::EmitAssembly: 4262 case frontend::EmitBC: 4263 case frontend::EmitHTML: 4264 case frontend::EmitLLVM: 4265 case frontend::EmitLLVMOnly: 4266 case frontend::EmitCodeGenOnly: 4267 case frontend::EmitObj: 4268 case frontend::ExtractAPI: 4269 case frontend::FixIt: 4270 case frontend::GenerateModule: 4271 case frontend::GenerateModuleInterface: 4272 case frontend::GenerateHeaderModule: 4273 case frontend::GenerateHeaderUnit: 4274 case frontend::GeneratePCH: 4275 case frontend::GenerateInterfaceStubs: 4276 case frontend::ParseSyntaxOnly: 4277 case frontend::ModuleFileInfo: 4278 case frontend::VerifyPCH: 4279 case frontend::PluginAction: 4280 case frontend::RewriteObjC: 4281 case frontend::RewriteTest: 4282 case frontend::RunAnalysis: 4283 case frontend::TemplightDump: 4284 case frontend::MigrateSource: 4285 return false; 4286 4287 case frontend::DumpCompilerOptions: 4288 case frontend::DumpRawTokens: 4289 case frontend::DumpTokens: 4290 case frontend::InitOnly: 4291 case frontend::PrintPreamble: 4292 case frontend::PrintPreprocessedInput: 4293 case frontend::RewriteMacros: 4294 case frontend::RunPreprocessorOnly: 4295 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4296 return true; 4297 } 4298 llvm_unreachable("invalid frontend action"); 4299 } 4300 4301 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4302 SmallVectorImpl<const char *> &Args, 4303 CompilerInvocation::StringAllocator SA, 4304 const LangOptions &LangOpts, 4305 const FrontendOptions &FrontendOpts, 4306 const CodeGenOptions &CodeGenOpts) { 4307 PreprocessorOptions *PreprocessorOpts = &Opts; 4308 4309 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4310 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4311 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4312 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4313 MERGER, EXTRACTOR, TABLE_INDEX) \ 4314 GENERATE_OPTION_WITH_MARSHALLING( \ 4315 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4316 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4317 #include "clang/Driver/Options.inc" 4318 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4319 4320 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4321 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4322 4323 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4324 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4325 4326 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4327 GenerateArg(Args, OPT_preamble_bytes_EQ, 4328 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4329 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4330 SA); 4331 4332 for (const auto &M : Opts.Macros) { 4333 // Don't generate __CET__ macro definitions. They are implied by the 4334 // -fcf-protection option that is generated elsewhere. 4335 if (M.first == "__CET__=1" && !M.second && 4336 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4337 continue; 4338 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4339 !CodeGenOpts.CFProtectionBranch) 4340 continue; 4341 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4342 CodeGenOpts.CFProtectionBranch) 4343 continue; 4344 4345 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4346 } 4347 4348 for (const auto &I : Opts.Includes) { 4349 // Don't generate OpenCL includes. They are implied by other flags that are 4350 // generated elsewhere. 4351 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4352 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4353 I == "opencl-c.h")) 4354 continue; 4355 4356 GenerateArg(Args, OPT_include, I, SA); 4357 } 4358 4359 for (const auto &CI : Opts.ChainedIncludes) 4360 GenerateArg(Args, OPT_chain_include, CI, SA); 4361 4362 for (const auto &RF : Opts.RemappedFiles) 4363 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4364 4365 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4366 // generated elsewhere. 4367 } 4368 4369 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4370 DiagnosticsEngine &Diags, 4371 frontend::ActionKind Action, 4372 const FrontendOptions &FrontendOpts) { 4373 unsigned NumErrorsBefore = Diags.getNumErrors(); 4374 4375 PreprocessorOptions *PreprocessorOpts = &Opts; 4376 4377 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4378 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4379 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4380 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4381 MERGER, EXTRACTOR, TABLE_INDEX) \ 4382 PARSE_OPTION_WITH_MARSHALLING( \ 4383 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4384 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4385 #include "clang/Driver/Options.inc" 4386 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4387 4388 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4389 Args.hasArg(OPT_pch_through_hdrstop_use); 4390 4391 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4392 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4393 4394 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4395 StringRef Value(A->getValue()); 4396 size_t Comma = Value.find(','); 4397 unsigned Bytes = 0; 4398 unsigned EndOfLine = 0; 4399 4400 if (Comma == StringRef::npos || 4401 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4402 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4403 Diags.Report(diag::err_drv_preamble_format); 4404 else { 4405 Opts.PrecompiledPreambleBytes.first = Bytes; 4406 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4407 } 4408 } 4409 4410 // Add the __CET__ macro if a CFProtection option is set. 4411 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4412 StringRef Name = A->getValue(); 4413 if (Name == "branch") 4414 Opts.addMacroDef("__CET__=1"); 4415 else if (Name == "return") 4416 Opts.addMacroDef("__CET__=2"); 4417 else if (Name == "full") 4418 Opts.addMacroDef("__CET__=3"); 4419 } 4420 4421 // Add macros from the command line. 4422 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4423 if (A->getOption().matches(OPT_D)) 4424 Opts.addMacroDef(A->getValue()); 4425 else 4426 Opts.addMacroUndef(A->getValue()); 4427 } 4428 4429 // Add the ordered list of -includes. 4430 for (const auto *A : Args.filtered(OPT_include)) 4431 Opts.Includes.emplace_back(A->getValue()); 4432 4433 for (const auto *A : Args.filtered(OPT_chain_include)) 4434 Opts.ChainedIncludes.emplace_back(A->getValue()); 4435 4436 for (const auto *A : Args.filtered(OPT_remap_file)) { 4437 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4438 4439 if (Split.second.empty()) { 4440 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4441 continue; 4442 } 4443 4444 Opts.addRemappedFile(Split.first, Split.second); 4445 } 4446 4447 // Always avoid lexing editor placeholders when we're just running the 4448 // preprocessor as we never want to emit the 4449 // "editor placeholder in source file" error in PP only mode. 4450 if (isStrictlyPreprocessorAction(Action)) 4451 Opts.LexEditorPlaceholders = false; 4452 4453 return Diags.getNumErrors() == NumErrorsBefore; 4454 } 4455 4456 static void GeneratePreprocessorOutputArgs( 4457 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4458 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4459 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4460 4461 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4462 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4463 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4464 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4465 MERGER, EXTRACTOR, TABLE_INDEX) \ 4466 GENERATE_OPTION_WITH_MARSHALLING( \ 4467 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4468 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4469 #include "clang/Driver/Options.inc" 4470 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4471 4472 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4473 if (Generate_dM) 4474 GenerateArg(Args, OPT_dM, SA); 4475 if (!Generate_dM && Opts.ShowMacros) 4476 GenerateArg(Args, OPT_dD, SA); 4477 if (Opts.DirectivesOnly) 4478 GenerateArg(Args, OPT_fdirectives_only, SA); 4479 } 4480 4481 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4482 ArgList &Args, DiagnosticsEngine &Diags, 4483 frontend::ActionKind Action) { 4484 unsigned NumErrorsBefore = Diags.getNumErrors(); 4485 4486 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4487 4488 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4489 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4490 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4491 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4492 MERGER, EXTRACTOR, TABLE_INDEX) \ 4493 PARSE_OPTION_WITH_MARSHALLING( \ 4494 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4495 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4496 #include "clang/Driver/Options.inc" 4497 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4498 4499 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4500 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4501 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4502 4503 return Diags.getNumErrors() == NumErrorsBefore; 4504 } 4505 4506 static void GenerateTargetArgs(const TargetOptions &Opts, 4507 SmallVectorImpl<const char *> &Args, 4508 CompilerInvocation::StringAllocator SA) { 4509 const TargetOptions *TargetOpts = &Opts; 4510 #define TARGET_OPTION_WITH_MARSHALLING( \ 4511 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4512 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4513 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4514 MERGER, EXTRACTOR, TABLE_INDEX) \ 4515 GENERATE_OPTION_WITH_MARSHALLING( \ 4516 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4517 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4518 #include "clang/Driver/Options.inc" 4519 #undef TARGET_OPTION_WITH_MARSHALLING 4520 4521 if (!Opts.SDKVersion.empty()) 4522 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4523 SA); 4524 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4525 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4526 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4527 } 4528 4529 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4530 DiagnosticsEngine &Diags) { 4531 unsigned NumErrorsBefore = Diags.getNumErrors(); 4532 4533 TargetOptions *TargetOpts = &Opts; 4534 4535 #define TARGET_OPTION_WITH_MARSHALLING( \ 4536 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4537 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4538 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4539 MERGER, EXTRACTOR, TABLE_INDEX) \ 4540 PARSE_OPTION_WITH_MARSHALLING( \ 4541 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4542 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4543 #include "clang/Driver/Options.inc" 4544 #undef TARGET_OPTION_WITH_MARSHALLING 4545 4546 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4547 llvm::VersionTuple Version; 4548 if (Version.tryParse(A->getValue())) 4549 Diags.Report(diag::err_drv_invalid_value) 4550 << A->getAsString(Args) << A->getValue(); 4551 else 4552 Opts.SDKVersion = Version; 4553 } 4554 if (Arg *A = 4555 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4556 llvm::VersionTuple Version; 4557 if (Version.tryParse(A->getValue())) 4558 Diags.Report(diag::err_drv_invalid_value) 4559 << A->getAsString(Args) << A->getValue(); 4560 else 4561 Opts.DarwinTargetVariantSDKVersion = Version; 4562 } 4563 4564 return Diags.getNumErrors() == NumErrorsBefore; 4565 } 4566 4567 bool CompilerInvocation::CreateFromArgsImpl( 4568 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4569 DiagnosticsEngine &Diags, const char *Argv0) { 4570 unsigned NumErrorsBefore = Diags.getNumErrors(); 4571 4572 // Parse the arguments. 4573 const OptTable &Opts = getDriverOptTable(); 4574 const unsigned IncludedFlagsBitmask = options::CC1Option; 4575 unsigned MissingArgIndex, MissingArgCount; 4576 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4577 MissingArgCount, IncludedFlagsBitmask); 4578 LangOptions &LangOpts = *Res.getLangOpts(); 4579 4580 // Check for missing argument error. 4581 if (MissingArgCount) 4582 Diags.Report(diag::err_drv_missing_argument) 4583 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4584 4585 // Issue errors on unknown arguments. 4586 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4587 auto ArgString = A->getAsString(Args); 4588 std::string Nearest; 4589 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4590 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4591 else 4592 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4593 << ArgString << Nearest; 4594 } 4595 4596 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4597 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4598 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4599 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4600 /*DefaultDiagColor=*/false); 4601 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4602 // FIXME: We shouldn't have to pass the DashX option around here 4603 InputKind DashX = Res.getFrontendOpts().DashX; 4604 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4605 llvm::Triple T(Res.getTargetOpts().Triple); 4606 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4607 Res.getFileSystemOpts().WorkingDir); 4608 4609 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4610 Diags); 4611 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4612 LangOpts.ObjCExceptions = 1; 4613 4614 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4615 if (Warning == "misexpect" && 4616 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4617 Res.getCodeGenOpts().MisExpect = true; 4618 } 4619 } 4620 4621 if (LangOpts.CUDA) { 4622 // During CUDA device-side compilation, the aux triple is the 4623 // triple used for host compilation. 4624 if (LangOpts.CUDAIsDevice) 4625 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4626 } 4627 4628 // Set the triple of the host for OpenMP device compile. 4629 if (LangOpts.OpenMPIsDevice) 4630 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4631 4632 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4633 Res.getFrontendOpts().OutputFile, LangOpts); 4634 4635 // FIXME: Override value name discarding when asan or msan is used because the 4636 // backend passes depend on the name of the alloca in order to print out 4637 // names. 4638 Res.getCodeGenOpts().DiscardValueNames &= 4639 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4640 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4641 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4642 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4643 4644 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4645 Res.getFrontendOpts().ProgramAction, 4646 Res.getFrontendOpts()); 4647 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4648 Res.getFrontendOpts().ProgramAction); 4649 4650 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4651 Res.getFrontendOpts().ProgramAction, 4652 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4653 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4654 Res.getDependencyOutputOpts().Targets.empty()) 4655 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4656 4657 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4658 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4659 !Res.getLangOpts()->Sanitize.empty()) { 4660 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4661 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4662 } 4663 4664 // Store the command-line for using in the CodeView backend. 4665 Res.getCodeGenOpts().Argv0 = Argv0; 4666 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4667 4668 FixupInvocation(Res, Diags, Args, DashX); 4669 4670 return Diags.getNumErrors() == NumErrorsBefore; 4671 } 4672 4673 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4674 ArrayRef<const char *> CommandLineArgs, 4675 DiagnosticsEngine &Diags, 4676 const char *Argv0) { 4677 CompilerInvocation DummyInvocation; 4678 4679 return RoundTrip( 4680 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4681 DiagnosticsEngine &Diags, const char *Argv0) { 4682 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4683 }, 4684 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4685 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4686 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4687 } 4688 4689 std::string CompilerInvocation::getModuleHash() const { 4690 // FIXME: Consider using SHA1 instead of MD5. 4691 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4692 4693 // Note: For QoI reasons, the things we use as a hash here should all be 4694 // dumped via the -module-info flag. 4695 4696 // Start the signature with the compiler version. 4697 HBuilder.add(getClangFullRepositoryVersion()); 4698 4699 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4700 // and getClangFullRepositoryVersion() doesn't include git revision. 4701 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4702 4703 // Extend the signature with the language options 4704 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4705 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4706 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4707 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4708 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4709 #include "clang/Basic/LangOptions.def" 4710 4711 HBuilder.addRange(LangOpts->ModuleFeatures); 4712 4713 HBuilder.add(LangOpts->ObjCRuntime); 4714 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4715 4716 // Extend the signature with the target options. 4717 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4718 TargetOpts->ABI); 4719 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4720 4721 // Extend the signature with preprocessor options. 4722 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4723 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4724 4725 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4726 for (const auto &Macro : getPreprocessorOpts().Macros) { 4727 // If we're supposed to ignore this macro for the purposes of modules, 4728 // don't put it into the hash. 4729 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4730 // Check whether we're ignoring this macro. 4731 StringRef MacroDef = Macro.first; 4732 if (hsOpts.ModulesIgnoreMacros.count( 4733 llvm::CachedHashString(MacroDef.split('=').first))) 4734 continue; 4735 } 4736 4737 HBuilder.add(Macro); 4738 } 4739 4740 // Extend the signature with the sysroot and other header search options. 4741 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4742 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4743 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4744 hsOpts.ModulesValidateDiagnosticOptions); 4745 HBuilder.add(hsOpts.ResourceDir); 4746 4747 if (hsOpts.ModulesStrictContextHash) { 4748 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4749 HBuilder.addRange(hsOpts.UserEntries); 4750 4751 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4752 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4753 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4754 HBuilder.add(diagOpts.get##Name()); 4755 #include "clang/Basic/DiagnosticOptions.def" 4756 #undef DIAGOPT 4757 #undef ENUM_DIAGOPT 4758 } 4759 4760 // Extend the signature with the user build path. 4761 HBuilder.add(hsOpts.ModuleUserBuildPath); 4762 4763 // Extend the signature with the module file extensions. 4764 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4765 ext->hashExtension(HBuilder); 4766 4767 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4768 // affects the debug info in the PCM. 4769 if (getCodeGenOpts().DebugTypeExtRefs) 4770 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4771 4772 // Extend the signature with the enabled sanitizers, if at least one is 4773 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4774 SanitizerSet SanHash = LangOpts->Sanitize; 4775 SanHash.clear(getPPTransparentSanitizers()); 4776 if (!SanHash.empty()) 4777 HBuilder.add(SanHash.Mask); 4778 4779 llvm::MD5::MD5Result Result; 4780 HBuilder.getHasher().final(Result); 4781 uint64_t Hash = Result.high() ^ Result.low(); 4782 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4783 } 4784 4785 void CompilerInvocation::generateCC1CommandLine( 4786 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4787 llvm::Triple T(TargetOpts->Triple); 4788 4789 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4790 GenerateMigratorArgs(MigratorOpts, Args, SA); 4791 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4792 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4793 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4794 GenerateTargetArgs(*TargetOpts, Args, SA); 4795 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4796 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4797 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4798 &*LangOpts); 4799 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4800 CodeGenOpts); 4801 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4802 FrontendOpts.ProgramAction); 4803 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4804 } 4805 4806 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4807 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4808 DiagnosticsEngine &Diags) { 4809 return createVFSFromCompilerInvocation(CI, Diags, 4810 llvm::vfs::getRealFileSystem()); 4811 } 4812 4813 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4814 clang::createVFSFromCompilerInvocation( 4815 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4816 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4817 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4818 return BaseFS; 4819 4820 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4821 // earlier vfs files are on the bottom 4822 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4823 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4824 Result->getBufferForFile(File); 4825 if (!Buffer) { 4826 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4827 continue; 4828 } 4829 4830 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4831 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4832 /*DiagContext*/ nullptr, Result); 4833 if (!FS) { 4834 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4835 continue; 4836 } 4837 4838 Result = FS; 4839 } 4840 return Result; 4841 } 4842