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 // Initialization. 111 //===----------------------------------------------------------------------===// 112 113 CompilerInvocationRefBase::CompilerInvocationRefBase() 114 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 115 DiagnosticOpts(new DiagnosticOptions()), 116 HeaderSearchOpts(new HeaderSearchOptions()), 117 PreprocessorOpts(new PreprocessorOptions()), 118 AnalyzerOpts(new AnalyzerOptions()) {} 119 120 CompilerInvocationRefBase::CompilerInvocationRefBase( 121 const CompilerInvocationRefBase &X) 122 : LangOpts(new LangOptions(*X.getLangOpts())), 123 TargetOpts(new TargetOptions(X.getTargetOpts())), 124 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 125 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 126 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 127 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 128 129 CompilerInvocationRefBase::CompilerInvocationRefBase( 130 CompilerInvocationRefBase &&X) = default; 131 132 CompilerInvocationRefBase & 133 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 134 LangOpts.swap(X.LangOpts); 135 TargetOpts.swap(X.TargetOpts); 136 DiagnosticOpts.swap(X.DiagnosticOpts); 137 HeaderSearchOpts.swap(X.HeaderSearchOpts); 138 PreprocessorOpts.swap(X.PreprocessorOpts); 139 AnalyzerOpts.swap(X.AnalyzerOpts); 140 return *this; 141 } 142 143 CompilerInvocationRefBase & 144 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 145 146 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 147 148 //===----------------------------------------------------------------------===// 149 // Normalizers 150 //===----------------------------------------------------------------------===// 151 152 #define SIMPLE_ENUM_VALUE_TABLE 153 #include "clang/Driver/Options.inc" 154 #undef SIMPLE_ENUM_VALUE_TABLE 155 156 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 157 unsigned TableIndex, 158 const ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 if (Args.hasArg(Opt)) 161 return true; 162 return None; 163 } 164 165 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 166 const ArgList &Args, 167 DiagnosticsEngine &) { 168 if (Args.hasArg(Opt)) 169 return false; 170 return None; 171 } 172 173 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 174 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 175 /// unnecessary template instantiations and just ignore it with a variadic 176 /// argument. 177 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 178 const char *Spelling, 179 CompilerInvocation::StringAllocator, 180 Option::OptionClass, unsigned, /*T*/...) { 181 Args.push_back(Spelling); 182 } 183 184 template <typename T> static constexpr bool is_uint64_t_convertible() { 185 return !std::is_same<T, uint64_t>::value && 186 llvm::is_integral_or_enum<T>::value; 187 } 188 189 template <typename T, 190 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 191 static auto makeFlagToValueNormalizer(T Value) { 192 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 193 DiagnosticsEngine &) -> Optional<T> { 194 if (Args.hasArg(Opt)) 195 return Value; 196 return None; 197 }; 198 } 199 200 template <typename T, 201 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 202 static auto makeFlagToValueNormalizer(T Value) { 203 return makeFlagToValueNormalizer(uint64_t(Value)); 204 } 205 206 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 207 OptSpecifier OtherOpt) { 208 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 209 const ArgList &Args, 210 DiagnosticsEngine &) -> Optional<bool> { 211 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 212 return A->getOption().matches(Opt) ? Value : OtherValue; 213 } 214 return None; 215 }; 216 } 217 218 static auto makeBooleanOptionDenormalizer(bool Value) { 219 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 220 CompilerInvocation::StringAllocator, Option::OptionClass, 221 unsigned, bool KeyPath) { 222 if (KeyPath == Value) 223 Args.push_back(Spelling); 224 }; 225 } 226 227 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 228 const char *Spelling, 229 CompilerInvocation::StringAllocator SA, 230 Option::OptionClass OptClass, unsigned, 231 const Twine &Value) { 232 switch (OptClass) { 233 case Option::SeparateClass: 234 case Option::JoinedOrSeparateClass: 235 case Option::JoinedAndSeparateClass: 236 Args.push_back(Spelling); 237 Args.push_back(SA(Value)); 238 break; 239 case Option::JoinedClass: 240 case Option::CommaJoinedClass: 241 Args.push_back(SA(Twine(Spelling) + Value)); 242 break; 243 default: 244 llvm_unreachable("Cannot denormalize an option with option class " 245 "incompatible with string denormalization."); 246 } 247 } 248 249 template <typename T> 250 static void 251 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 252 CompilerInvocation::StringAllocator SA, 253 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 254 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 255 } 256 257 static Optional<SimpleEnumValue> 258 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 259 for (int I = 0, E = Table.Size; I != E; ++I) 260 if (Name == Table.Table[I].Name) 261 return Table.Table[I]; 262 263 return None; 264 } 265 266 static Optional<SimpleEnumValue> 267 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 268 for (int I = 0, E = Table.Size; I != E; ++I) 269 if (Value == Table.Table[I].Value) 270 return Table.Table[I]; 271 272 return None; 273 } 274 275 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 276 unsigned TableIndex, 277 const ArgList &Args, 278 DiagnosticsEngine &Diags) { 279 assert(TableIndex < SimpleEnumValueTablesSize); 280 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 281 282 auto *Arg = Args.getLastArg(Opt); 283 if (!Arg) 284 return None; 285 286 StringRef ArgValue = Arg->getValue(); 287 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 288 return MaybeEnumVal->Value; 289 290 Diags.Report(diag::err_drv_invalid_value) 291 << Arg->getAsString(Args) << ArgValue; 292 return None; 293 } 294 295 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 296 const char *Spelling, 297 CompilerInvocation::StringAllocator SA, 298 Option::OptionClass OptClass, 299 unsigned TableIndex, unsigned Value) { 300 assert(TableIndex < SimpleEnumValueTablesSize); 301 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 302 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 303 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 304 MaybeEnumVal->Name); 305 } else { 306 llvm_unreachable("The simple enum value was not correctly defined in " 307 "the tablegen option description"); 308 } 309 } 310 311 template <typename T> 312 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 313 const char *Spelling, 314 CompilerInvocation::StringAllocator SA, 315 Option::OptionClass OptClass, 316 unsigned TableIndex, T Value) { 317 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 318 static_cast<unsigned>(Value)); 319 } 320 321 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 322 const ArgList &Args, 323 DiagnosticsEngine &Diags) { 324 auto *Arg = Args.getLastArg(Opt); 325 if (!Arg) 326 return None; 327 return std::string(Arg->getValue()); 328 } 329 330 template <typename IntTy> 331 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 332 const ArgList &Args, 333 DiagnosticsEngine &Diags) { 334 auto *Arg = Args.getLastArg(Opt); 335 if (!Arg) 336 return None; 337 IntTy Res; 338 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 339 Diags.Report(diag::err_drv_invalid_int_value) 340 << Arg->getAsString(Args) << Arg->getValue(); 341 return None; 342 } 343 return Res; 344 } 345 346 static Optional<std::vector<std::string>> 347 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 348 DiagnosticsEngine &) { 349 return Args.getAllArgValues(Opt); 350 } 351 352 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 353 const char *Spelling, 354 CompilerInvocation::StringAllocator SA, 355 Option::OptionClass OptClass, 356 unsigned TableIndex, 357 const std::vector<std::string> &Values) { 358 switch (OptClass) { 359 case Option::CommaJoinedClass: { 360 std::string CommaJoinedValue; 361 if (!Values.empty()) { 362 CommaJoinedValue.append(Values.front()); 363 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 364 CommaJoinedValue.append(","); 365 CommaJoinedValue.append(Value); 366 } 367 } 368 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 369 TableIndex, CommaJoinedValue); 370 break; 371 } 372 case Option::JoinedClass: 373 case Option::SeparateClass: 374 case Option::JoinedOrSeparateClass: 375 for (const std::string &Value : Values) 376 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 377 break; 378 default: 379 llvm_unreachable("Cannot denormalize an option with option class " 380 "incompatible with string vector denormalization."); 381 } 382 } 383 384 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 385 const ArgList &Args, 386 DiagnosticsEngine &Diags) { 387 auto *Arg = Args.getLastArg(Opt); 388 if (!Arg) 389 return None; 390 return llvm::Triple::normalize(Arg->getValue()); 391 } 392 393 template <typename T, typename U> 394 static T mergeForwardValue(T KeyPath, U Value) { 395 return static_cast<T>(Value); 396 } 397 398 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 399 return KeyPath | Value; 400 } 401 402 template <typename T> static T extractForwardValue(T KeyPath) { 403 return KeyPath; 404 } 405 406 template <typename T, typename U, U Value> 407 static T extractMaskValue(T KeyPath) { 408 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 409 } 410 411 #define PARSE_OPTION_WITH_MARSHALLING( \ 412 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 413 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 414 if ((FLAGS)&options::CC1Option) { \ 415 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 416 if (IMPLIED_CHECK) \ 417 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 418 if (SHOULD_PARSE) \ 419 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 420 KEYPATH = \ 421 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 422 } 423 424 // Capture the extracted value as a lambda argument to avoid potential issues 425 // with lifetime extension of the reference. 426 #define GENERATE_OPTION_WITH_MARSHALLING( \ 427 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 428 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 429 TABLE_INDEX) \ 430 if ((FLAGS)&options::CC1Option) { \ 431 [&](const auto &Extracted) { \ 432 if (ALWAYS_EMIT || \ 433 (Extracted != \ 434 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 435 : (DEFAULT_VALUE)))) \ 436 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 437 TABLE_INDEX, Extracted); \ 438 }(EXTRACTOR(KEYPATH)); \ 439 } 440 441 static const StringRef GetInputKindName(InputKind IK); 442 443 static bool FixupInvocation(CompilerInvocation &Invocation, 444 DiagnosticsEngine &Diags, const ArgList &Args, 445 InputKind IK) { 446 unsigned NumErrorsBefore = Diags.getNumErrors(); 447 448 LangOptions &LangOpts = *Invocation.getLangOpts(); 449 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 450 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 451 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 452 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 453 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 454 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 455 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 456 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 457 if (FrontendOpts.ShowStats) 458 CodeGenOpts.ClearASTBeforeBackend = false; 459 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 460 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 461 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 462 LangOpts.CurrentModule = LangOpts.ModuleName; 463 464 llvm::Triple T(TargetOpts.Triple); 465 llvm::Triple::ArchType Arch = T.getArch(); 466 467 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 468 469 if (LangOpts.getExceptionHandling() != 470 LangOptions::ExceptionHandlingKind::None && 471 T.isWindowsMSVCEnvironment()) 472 Diags.Report(diag::err_fe_invalid_exception_model) 473 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 474 475 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 476 Diags.Report(diag::warn_c_kext); 477 478 if (Args.hasArg(OPT_fconcepts_ts)) 479 Diags.Report(diag::warn_fe_concepts_ts_flag); 480 481 if (LangOpts.NewAlignOverride && 482 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 483 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 484 Diags.Report(diag::err_fe_invalid_alignment) 485 << A->getAsString(Args) << A->getValue(); 486 LangOpts.NewAlignOverride = 0; 487 } 488 489 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 490 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 491 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 492 << "-fsycl-is-host"; 493 494 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 495 Diags.Report(diag::err_drv_argument_not_allowed_with) 496 << "-fgnu89-inline" << GetInputKindName(IK); 497 498 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 499 Diags.Report(diag::warn_ignored_hip_only_option) 500 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 501 502 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 503 Diags.Report(diag::warn_ignored_hip_only_option) 504 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 505 506 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 507 // This option should be deprecated for CL > 1.0 because 508 // this option was added for compatibility with OpenCL 1.0. 509 if (Args.getLastArg(OPT_cl_strict_aliasing) && 510 (LangOpts.getOpenCLCompatibleVersion() > 100)) 511 Diags.Report(diag::warn_option_invalid_ocl_version) 512 << LangOpts.getOpenCLVersionString() 513 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 514 515 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 516 auto DefaultCC = LangOpts.getDefaultCallingConv(); 517 518 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 519 DefaultCC == LangOptions::DCC_StdCall) && 520 Arch != llvm::Triple::x86; 521 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 522 DefaultCC == LangOptions::DCC_RegCall) && 523 !T.isX86(); 524 if (emitError) 525 Diags.Report(diag::err_drv_argument_not_allowed_with) 526 << A->getSpelling() << T.getTriple(); 527 } 528 529 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 530 Diags.Report(diag::err_drv_argument_only_allowed_with) 531 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 532 << "-fno-legacy-pass-manager"; 533 534 return Diags.getNumErrors() == NumErrorsBefore; 535 } 536 537 //===----------------------------------------------------------------------===// 538 // Deserialization (from args) 539 //===----------------------------------------------------------------------===// 540 541 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 542 DiagnosticsEngine &Diags) { 543 unsigned DefaultOpt = llvm::CodeGenOpt::None; 544 if ((IK.getLanguage() == Language::OpenCL || 545 IK.getLanguage() == Language::OpenCLCXX) && 546 !Args.hasArg(OPT_cl_opt_disable)) 547 DefaultOpt = llvm::CodeGenOpt::Default; 548 549 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 550 if (A->getOption().matches(options::OPT_O0)) 551 return llvm::CodeGenOpt::None; 552 553 if (A->getOption().matches(options::OPT_Ofast)) 554 return llvm::CodeGenOpt::Aggressive; 555 556 assert(A->getOption().matches(options::OPT_O)); 557 558 StringRef S(A->getValue()); 559 if (S == "s" || S == "z") 560 return llvm::CodeGenOpt::Default; 561 562 if (S == "g") 563 return llvm::CodeGenOpt::Less; 564 565 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 566 } 567 568 return DefaultOpt; 569 } 570 571 static unsigned getOptimizationLevelSize(ArgList &Args) { 572 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 573 if (A->getOption().matches(options::OPT_O)) { 574 switch (A->getValue()[0]) { 575 default: 576 return 0; 577 case 's': 578 return 1; 579 case 'z': 580 return 2; 581 } 582 } 583 } 584 return 0; 585 } 586 587 static void GenerateArg(SmallVectorImpl<const char *> &Args, 588 llvm::opt::OptSpecifier OptSpecifier, 589 CompilerInvocation::StringAllocator SA) { 590 Option Opt = getDriverOptTable().getOption(OptSpecifier); 591 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 592 Option::OptionClass::FlagClass, 0); 593 } 594 595 static void GenerateArg(SmallVectorImpl<const char *> &Args, 596 llvm::opt::OptSpecifier OptSpecifier, 597 const Twine &Value, 598 CompilerInvocation::StringAllocator SA) { 599 Option Opt = getDriverOptTable().getOption(OptSpecifier); 600 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 601 Opt.getKind(), 0, Value); 602 } 603 604 // Parse command line arguments into CompilerInvocation. 605 using ParseFn = 606 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 607 DiagnosticsEngine &, const char *)>; 608 609 // Generate command line arguments from CompilerInvocation. 610 using GenerateFn = llvm::function_ref<void( 611 CompilerInvocation &, SmallVectorImpl<const char *> &, 612 CompilerInvocation::StringAllocator)>; 613 614 // May perform round-trip of command line arguments. By default, the round-trip 615 // is enabled in assert builds. This can be overwritten at run-time via the 616 // "-round-trip-args" and "-no-round-trip-args" command line flags. 617 // During round-trip, the command line arguments are parsed into a dummy 618 // instance of CompilerInvocation which is used to generate the command line 619 // arguments again. The real CompilerInvocation instance is then created by 620 // parsing the generated arguments, not the original ones. 621 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 622 CompilerInvocation &RealInvocation, 623 CompilerInvocation &DummyInvocation, 624 ArrayRef<const char *> CommandLineArgs, 625 DiagnosticsEngine &Diags, const char *Argv0) { 626 #ifndef NDEBUG 627 bool DoRoundTripDefault = true; 628 #else 629 bool DoRoundTripDefault = false; 630 #endif 631 632 bool DoRoundTrip = DoRoundTripDefault; 633 for (const auto *Arg : CommandLineArgs) { 634 if (Arg == StringRef("-round-trip-args")) 635 DoRoundTrip = true; 636 if (Arg == StringRef("-no-round-trip-args")) 637 DoRoundTrip = false; 638 } 639 640 // If round-trip was not requested, simply run the parser with the real 641 // invocation diagnostics. 642 if (!DoRoundTrip) 643 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 644 645 // Serializes quoted (and potentially escaped) arguments. 646 auto SerializeArgs = [](ArrayRef<const char *> Args) { 647 std::string Buffer; 648 llvm::raw_string_ostream OS(Buffer); 649 for (const char *Arg : Args) { 650 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 651 OS << ' '; 652 } 653 OS.flush(); 654 return Buffer; 655 }; 656 657 // Setup a dummy DiagnosticsEngine. 658 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 659 DummyDiags.setClient(new TextDiagnosticBuffer()); 660 661 // Run the first parse on the original arguments with the dummy invocation and 662 // diagnostics. 663 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 664 DummyDiags.getNumWarnings() != 0) { 665 // If the first parse did not succeed, it must be user mistake (invalid 666 // command line arguments). We won't be able to generate arguments that 667 // would reproduce the same result. Let's fail again with the real 668 // invocation and diagnostics, so all side-effects of parsing are visible. 669 unsigned NumWarningsBefore = Diags.getNumWarnings(); 670 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 671 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 672 return Success; 673 674 // Parse with original options and diagnostics succeeded even though it 675 // shouldn't have. Something is off. 676 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 677 Diags.Report(diag::note_cc1_round_trip_original) 678 << SerializeArgs(CommandLineArgs); 679 return false; 680 } 681 682 // Setup string allocator. 683 llvm::BumpPtrAllocator Alloc; 684 llvm::StringSaver StringPool(Alloc); 685 auto SA = [&StringPool](const Twine &Arg) { 686 return StringPool.save(Arg).data(); 687 }; 688 689 // Generate arguments from the dummy invocation. If Generate is the 690 // inverse of Parse, the newly generated arguments must have the same 691 // semantics as the original. 692 SmallVector<const char *> GeneratedArgs1; 693 Generate(DummyInvocation, GeneratedArgs1, SA); 694 695 // Run the second parse, now on the generated arguments, and with the real 696 // invocation and diagnostics. The result is what we will end up using for the 697 // rest of compilation, so if Generate is not inverse of Parse, something down 698 // the line will break. 699 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 700 701 // The first parse on original arguments succeeded, but second parse of 702 // generated arguments failed. Something must be wrong with the generator. 703 if (!Success2) { 704 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 705 Diags.Report(diag::note_cc1_round_trip_generated) 706 << 1 << SerializeArgs(GeneratedArgs1); 707 return false; 708 } 709 710 // Generate arguments again, this time from the options we will end up using 711 // for the rest of the compilation. 712 SmallVector<const char *> GeneratedArgs2; 713 Generate(RealInvocation, GeneratedArgs2, SA); 714 715 // Compares two lists of generated arguments. 716 auto Equal = [](const ArrayRef<const char *> A, 717 const ArrayRef<const char *> B) { 718 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 719 [](const char *AElem, const char *BElem) { 720 return StringRef(AElem) == StringRef(BElem); 721 }); 722 }; 723 724 // If we generated different arguments from what we assume are two 725 // semantically equivalent CompilerInvocations, the Generate function may 726 // be non-deterministic. 727 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 728 Diags.Report(diag::err_cc1_round_trip_mismatch); 729 Diags.Report(diag::note_cc1_round_trip_generated) 730 << 1 << SerializeArgs(GeneratedArgs1); 731 Diags.Report(diag::note_cc1_round_trip_generated) 732 << 2 << SerializeArgs(GeneratedArgs2); 733 return false; 734 } 735 736 Diags.Report(diag::remark_cc1_round_trip_generated) 737 << 1 << SerializeArgs(GeneratedArgs1); 738 Diags.Report(diag::remark_cc1_round_trip_generated) 739 << 2 << SerializeArgs(GeneratedArgs2); 740 741 return Success2; 742 } 743 744 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 745 OptSpecifier GroupWithValue, 746 std::vector<std::string> &Diagnostics) { 747 for (auto *A : Args.filtered(Group)) { 748 if (A->getOption().getKind() == Option::FlagClass) { 749 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 750 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 751 Diagnostics.push_back( 752 std::string(A->getOption().getName().drop_front(1))); 753 } else if (A->getOption().matches(GroupWithValue)) { 754 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 755 // group. Add only the group name to the diagnostics. 756 Diagnostics.push_back( 757 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 758 } else { 759 // Otherwise, add its value (for OPT_W_Joined and similar). 760 Diagnostics.push_back(A->getValue()); 761 } 762 } 763 } 764 765 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 766 // it won't verify the input. 767 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 768 DiagnosticsEngine *Diags); 769 770 static void getAllNoBuiltinFuncValues(ArgList &Args, 771 std::vector<std::string> &Funcs) { 772 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 773 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 774 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 775 } 776 777 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 778 SmallVectorImpl<const char *> &Args, 779 CompilerInvocation::StringAllocator SA) { 780 const AnalyzerOptions *AnalyzerOpts = &Opts; 781 782 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 783 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 784 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 785 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 786 MERGER, EXTRACTOR, TABLE_INDEX) \ 787 GENERATE_OPTION_WITH_MARSHALLING( \ 788 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 789 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 790 #include "clang/Driver/Options.inc" 791 #undef ANALYZER_OPTION_WITH_MARSHALLING 792 793 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 794 switch (Opts.AnalysisStoreOpt) { 795 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 796 case NAME##Model: \ 797 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 798 break; 799 #include "clang/StaticAnalyzer/Core/Analyses.def" 800 default: 801 llvm_unreachable("Tried to generate unknown analysis store."); 802 } 803 } 804 805 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 806 switch (Opts.AnalysisConstraintsOpt) { 807 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 808 case NAME##Model: \ 809 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 810 break; 811 #include "clang/StaticAnalyzer/Core/Analyses.def" 812 default: 813 llvm_unreachable("Tried to generate unknown analysis constraint."); 814 } 815 } 816 817 if (Opts.AnalysisDiagOpt != PD_HTML) { 818 switch (Opts.AnalysisDiagOpt) { 819 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 820 case PD_##NAME: \ 821 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 822 break; 823 #include "clang/StaticAnalyzer/Core/Analyses.def" 824 default: 825 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 826 } 827 } 828 829 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 830 switch (Opts.AnalysisPurgeOpt) { 831 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 832 case NAME: \ 833 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 834 break; 835 #include "clang/StaticAnalyzer/Core/Analyses.def" 836 default: 837 llvm_unreachable("Tried to generate unknown analysis purge mode."); 838 } 839 } 840 841 if (Opts.InliningMode != NoRedundancy) { 842 switch (Opts.InliningMode) { 843 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 844 case NAME: \ 845 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 846 break; 847 #include "clang/StaticAnalyzer/Core/Analyses.def" 848 default: 849 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 850 } 851 } 852 853 for (const auto &CP : Opts.CheckersAndPackages) { 854 OptSpecifier Opt = 855 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 856 GenerateArg(Args, Opt, CP.first, SA); 857 } 858 859 AnalyzerOptions ConfigOpts; 860 parseAnalyzerConfigs(ConfigOpts, nullptr); 861 862 for (const auto &C : Opts.Config) { 863 // Don't generate anything that came from parseAnalyzerConfigs. It would be 864 // redundant and may not be valid on the command line. 865 auto Entry = ConfigOpts.Config.find(C.getKey()); 866 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 867 continue; 868 869 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 870 } 871 872 // Nothing to generate for FullCompilerInvocation. 873 } 874 875 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 876 DiagnosticsEngine &Diags) { 877 unsigned NumErrorsBefore = Diags.getNumErrors(); 878 879 AnalyzerOptions *AnalyzerOpts = &Opts; 880 881 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 882 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 883 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 884 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 885 MERGER, EXTRACTOR, TABLE_INDEX) \ 886 PARSE_OPTION_WITH_MARSHALLING( \ 887 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 888 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 889 #include "clang/Driver/Options.inc" 890 #undef ANALYZER_OPTION_WITH_MARSHALLING 891 892 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 893 StringRef Name = A->getValue(); 894 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 895 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 896 .Case(CMDFLAG, NAME##Model) 897 #include "clang/StaticAnalyzer/Core/Analyses.def" 898 .Default(NumStores); 899 if (Value == NumStores) { 900 Diags.Report(diag::err_drv_invalid_value) 901 << A->getAsString(Args) << Name; 902 } else { 903 Opts.AnalysisStoreOpt = Value; 904 } 905 } 906 907 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 908 StringRef Name = A->getValue(); 909 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 910 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 911 .Case(CMDFLAG, NAME##Model) 912 #include "clang/StaticAnalyzer/Core/Analyses.def" 913 .Default(NumConstraints); 914 if (Value == NumConstraints) { 915 Diags.Report(diag::err_drv_invalid_value) 916 << A->getAsString(Args) << Name; 917 } else { 918 Opts.AnalysisConstraintsOpt = Value; 919 } 920 } 921 922 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 923 StringRef Name = A->getValue(); 924 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 925 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 926 .Case(CMDFLAG, PD_##NAME) 927 #include "clang/StaticAnalyzer/Core/Analyses.def" 928 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 929 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 930 Diags.Report(diag::err_drv_invalid_value) 931 << A->getAsString(Args) << Name; 932 } else { 933 Opts.AnalysisDiagOpt = Value; 934 } 935 } 936 937 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 938 StringRef Name = A->getValue(); 939 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 940 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 941 .Case(CMDFLAG, NAME) 942 #include "clang/StaticAnalyzer/Core/Analyses.def" 943 .Default(NumPurgeModes); 944 if (Value == NumPurgeModes) { 945 Diags.Report(diag::err_drv_invalid_value) 946 << A->getAsString(Args) << Name; 947 } else { 948 Opts.AnalysisPurgeOpt = Value; 949 } 950 } 951 952 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 953 StringRef Name = A->getValue(); 954 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 955 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 956 .Case(CMDFLAG, NAME) 957 #include "clang/StaticAnalyzer/Core/Analyses.def" 958 .Default(NumInliningModes); 959 if (Value == NumInliningModes) { 960 Diags.Report(diag::err_drv_invalid_value) 961 << A->getAsString(Args) << Name; 962 } else { 963 Opts.InliningMode = Value; 964 } 965 } 966 967 Opts.CheckersAndPackages.clear(); 968 for (const Arg *A : 969 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 970 A->claim(); 971 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 972 // We can have a list of comma separated checker names, e.g: 973 // '-analyzer-checker=cocoa,unix' 974 StringRef CheckerAndPackageList = A->getValue(); 975 SmallVector<StringRef, 16> CheckersAndPackages; 976 CheckerAndPackageList.split(CheckersAndPackages, ","); 977 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 978 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 979 IsEnabled); 980 } 981 982 // Go through the analyzer configuration options. 983 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 984 985 // We can have a list of comma separated config names, e.g: 986 // '-analyzer-config key1=val1,key2=val2' 987 StringRef configList = A->getValue(); 988 SmallVector<StringRef, 4> configVals; 989 configList.split(configVals, ","); 990 for (const auto &configVal : configVals) { 991 StringRef key, val; 992 std::tie(key, val) = configVal.split("="); 993 if (val.empty()) { 994 Diags.Report(SourceLocation(), 995 diag::err_analyzer_config_no_value) << configVal; 996 break; 997 } 998 if (val.contains('=')) { 999 Diags.Report(SourceLocation(), 1000 diag::err_analyzer_config_multiple_values) 1001 << configVal; 1002 break; 1003 } 1004 1005 // TODO: Check checker options too, possibly in CheckerRegistry. 1006 // Leave unknown non-checker configs unclaimed. 1007 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1008 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1009 Diags.Report(diag::err_analyzer_config_unknown) << key; 1010 continue; 1011 } 1012 1013 A->claim(); 1014 Opts.Config[key] = std::string(val); 1015 } 1016 } 1017 1018 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1019 parseAnalyzerConfigs(Opts, &Diags); 1020 else 1021 parseAnalyzerConfigs(Opts, nullptr); 1022 1023 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1024 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1025 if (i != 0) 1026 os << " "; 1027 os << Args.getArgString(i); 1028 } 1029 os.flush(); 1030 1031 return Diags.getNumErrors() == NumErrorsBefore; 1032 } 1033 1034 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1035 StringRef OptionName, StringRef DefaultVal) { 1036 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1037 } 1038 1039 static void initOption(AnalyzerOptions::ConfigTable &Config, 1040 DiagnosticsEngine *Diags, 1041 StringRef &OptionField, StringRef Name, 1042 StringRef DefaultVal) { 1043 // String options may be known to invalid (e.g. if the expected string is a 1044 // file name, but the file does not exist), those will have to be checked in 1045 // parseConfigs. 1046 OptionField = getStringOption(Config, Name, DefaultVal); 1047 } 1048 1049 static void initOption(AnalyzerOptions::ConfigTable &Config, 1050 DiagnosticsEngine *Diags, 1051 bool &OptionField, StringRef Name, bool DefaultVal) { 1052 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1053 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1054 .Case("true", true) 1055 .Case("false", false) 1056 .Default(None); 1057 1058 if (!PossiblyInvalidVal) { 1059 if (Diags) 1060 Diags->Report(diag::err_analyzer_config_invalid_input) 1061 << Name << "a boolean"; 1062 else 1063 OptionField = DefaultVal; 1064 } else 1065 OptionField = PossiblyInvalidVal.getValue(); 1066 } 1067 1068 static void initOption(AnalyzerOptions::ConfigTable &Config, 1069 DiagnosticsEngine *Diags, 1070 unsigned &OptionField, StringRef Name, 1071 unsigned DefaultVal) { 1072 1073 OptionField = DefaultVal; 1074 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1075 .getAsInteger(0, OptionField); 1076 if (Diags && HasFailed) 1077 Diags->Report(diag::err_analyzer_config_invalid_input) 1078 << Name << "an unsigned"; 1079 } 1080 1081 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1082 DiagnosticsEngine *Diags) { 1083 // TODO: There's no need to store the entire configtable, it'd be plenty 1084 // enough tostore checker options. 1085 1086 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1087 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1088 1089 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1090 SHALLOW_VAL, DEEP_VAL) \ 1091 switch (AnOpts.getUserMode()) { \ 1092 case UMK_Shallow: \ 1093 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1094 break; \ 1095 case UMK_Deep: \ 1096 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1097 break; \ 1098 } \ 1099 1100 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1101 #undef ANALYZER_OPTION 1102 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1103 1104 // At this point, AnalyzerOptions is configured. Let's validate some options. 1105 1106 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1107 // The current approach only validates the registered checkers which does not 1108 // contain the runtime enabled checkers and optimally we would validate both. 1109 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1110 std::vector<StringRef> Checkers = 1111 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1112 std::vector<StringRef> Packages = 1113 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1114 1115 SmallVector<StringRef, 16> CheckersAndPackages; 1116 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1117 1118 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1119 if (Diags) { 1120 bool IsChecker = CheckerOrPackage.contains('.'); 1121 bool IsValidName = IsChecker 1122 ? llvm::is_contained(Checkers, CheckerOrPackage) 1123 : llvm::is_contained(Packages, CheckerOrPackage); 1124 1125 if (!IsValidName) 1126 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1127 << CheckerOrPackage; 1128 } 1129 1130 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1131 } 1132 } 1133 1134 if (!Diags) 1135 return; 1136 1137 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1138 Diags->Report(diag::err_analyzer_config_invalid_input) 1139 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1140 1141 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1142 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1143 << "a filename"; 1144 1145 if (!AnOpts.ModelPath.empty() && 1146 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1147 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1148 << "a filename"; 1149 } 1150 1151 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1152 static void 1153 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1154 CompilerInvocation::StringAllocator SA, 1155 OptSpecifier OptEQ, StringRef Name, 1156 const CodeGenOptions::OptRemark &Remark) { 1157 if (Remark.hasValidPattern()) { 1158 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1159 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1160 GenerateArg(Args, OPT_R_Joined, Name, SA); 1161 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1162 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1163 } 1164 } 1165 1166 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1167 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1168 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1169 static CodeGenOptions::OptRemark 1170 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1171 OptSpecifier OptEQ, StringRef Name) { 1172 CodeGenOptions::OptRemark Result; 1173 1174 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1175 StringRef Pattern) { 1176 Result.Pattern = Pattern.str(); 1177 1178 std::string RegexError; 1179 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1180 if (!Result.Regex->isValid(RegexError)) { 1181 Diags.Report(diag::err_drv_optimization_remark_pattern) 1182 << RegexError << A->getAsString(Args); 1183 return false; 1184 } 1185 1186 return true; 1187 }; 1188 1189 for (Arg *A : Args) { 1190 if (A->getOption().matches(OPT_R_Joined)) { 1191 StringRef Value = A->getValue(); 1192 1193 if (Value == Name) 1194 Result.Kind = CodeGenOptions::RK_Enabled; 1195 else if (Value == "everything") 1196 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1197 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1198 Result.Kind = CodeGenOptions::RK_Disabled; 1199 else if (Value == "no-everything") 1200 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1201 else 1202 continue; 1203 1204 if (Result.Kind == CodeGenOptions::RK_Disabled || 1205 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1206 Result.Pattern = ""; 1207 Result.Regex = nullptr; 1208 } else { 1209 InitializeResultPattern(A, ".*"); 1210 } 1211 } else if (A->getOption().matches(OptEQ)) { 1212 Result.Kind = CodeGenOptions::RK_WithPattern; 1213 if (!InitializeResultPattern(A, A->getValue())) 1214 return CodeGenOptions::OptRemark(); 1215 } 1216 } 1217 1218 return Result; 1219 } 1220 1221 static bool parseDiagnosticLevelMask(StringRef FlagName, 1222 const std::vector<std::string> &Levels, 1223 DiagnosticsEngine &Diags, 1224 DiagnosticLevelMask &M) { 1225 bool Success = true; 1226 for (const auto &Level : Levels) { 1227 DiagnosticLevelMask const PM = 1228 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1229 .Case("note", DiagnosticLevelMask::Note) 1230 .Case("remark", DiagnosticLevelMask::Remark) 1231 .Case("warning", DiagnosticLevelMask::Warning) 1232 .Case("error", DiagnosticLevelMask::Error) 1233 .Default(DiagnosticLevelMask::None); 1234 if (PM == DiagnosticLevelMask::None) { 1235 Success = false; 1236 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1237 } 1238 M = M | PM; 1239 } 1240 return Success; 1241 } 1242 1243 static void parseSanitizerKinds(StringRef FlagName, 1244 const std::vector<std::string> &Sanitizers, 1245 DiagnosticsEngine &Diags, SanitizerSet &S) { 1246 for (const auto &Sanitizer : Sanitizers) { 1247 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1248 if (K == SanitizerMask()) 1249 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1250 else 1251 S.set(K, true); 1252 } 1253 } 1254 1255 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1256 SmallVector<StringRef, 4> Values; 1257 serializeSanitizerSet(S, Values); 1258 return Values; 1259 } 1260 1261 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1262 ArgList &Args, DiagnosticsEngine &D, 1263 XRayInstrSet &S) { 1264 llvm::SmallVector<StringRef, 2> BundleParts; 1265 llvm::SplitString(Bundle, BundleParts, ","); 1266 for (const auto &B : BundleParts) { 1267 auto Mask = parseXRayInstrValue(B); 1268 if (Mask == XRayInstrKind::None) 1269 if (B != "none") 1270 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1271 else 1272 S.Mask = Mask; 1273 else if (Mask == XRayInstrKind::All) 1274 S.Mask = Mask; 1275 else 1276 S.set(Mask, true); 1277 } 1278 } 1279 1280 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1281 llvm::SmallVector<StringRef, 2> BundleParts; 1282 serializeXRayInstrValue(S, BundleParts); 1283 std::string Buffer; 1284 llvm::raw_string_ostream OS(Buffer); 1285 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1286 return Buffer; 1287 } 1288 1289 // Set the profile kind using fprofile-instrument-use-path. 1290 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1291 const Twine &ProfileName) { 1292 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1293 // In error, return silently and let Clang PGOUse report the error message. 1294 if (auto E = ReaderOrErr.takeError()) { 1295 llvm::consumeError(std::move(E)); 1296 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1297 return; 1298 } 1299 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1300 std::move(ReaderOrErr.get()); 1301 if (PGOReader->isIRLevelProfile()) { 1302 if (PGOReader->hasCSIRLevelProfile()) 1303 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1304 else 1305 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1306 } else 1307 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1308 } 1309 1310 void CompilerInvocation::GenerateCodeGenArgs( 1311 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1312 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1313 const LangOptions *LangOpts) { 1314 const CodeGenOptions &CodeGenOpts = Opts; 1315 1316 if (Opts.OptimizationLevel == 0) 1317 GenerateArg(Args, OPT_O0, SA); 1318 else 1319 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1320 1321 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1322 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1323 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1324 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1325 MERGER, EXTRACTOR, TABLE_INDEX) \ 1326 GENERATE_OPTION_WITH_MARSHALLING( \ 1327 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1328 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1329 #include "clang/Driver/Options.inc" 1330 #undef CODEGEN_OPTION_WITH_MARSHALLING 1331 1332 if (Opts.OptimizationLevel > 0) { 1333 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1334 GenerateArg(Args, OPT_finline_functions, SA); 1335 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1336 GenerateArg(Args, OPT_finline_hint_functions, SA); 1337 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1338 GenerateArg(Args, OPT_fno_inline, SA); 1339 } 1340 1341 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1342 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1343 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1344 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1345 1346 Optional<StringRef> DebugInfoVal; 1347 switch (Opts.DebugInfo) { 1348 case codegenoptions::DebugLineTablesOnly: 1349 DebugInfoVal = "line-tables-only"; 1350 break; 1351 case codegenoptions::DebugDirectivesOnly: 1352 DebugInfoVal = "line-directives-only"; 1353 break; 1354 case codegenoptions::DebugInfoConstructor: 1355 DebugInfoVal = "constructor"; 1356 break; 1357 case codegenoptions::LimitedDebugInfo: 1358 DebugInfoVal = "limited"; 1359 break; 1360 case codegenoptions::FullDebugInfo: 1361 DebugInfoVal = "standalone"; 1362 break; 1363 case codegenoptions::UnusedTypeInfo: 1364 DebugInfoVal = "unused-types"; 1365 break; 1366 case codegenoptions::NoDebugInfo: // default value 1367 DebugInfoVal = None; 1368 break; 1369 case codegenoptions::LocTrackingOnly: // implied value 1370 DebugInfoVal = None; 1371 break; 1372 } 1373 if (DebugInfoVal) 1374 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1375 1376 for (const auto &Prefix : Opts.DebugPrefixMap) 1377 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1378 Prefix.first + "=" + Prefix.second, SA); 1379 1380 for (const auto &Prefix : Opts.CoveragePrefixMap) 1381 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1382 Prefix.first + "=" + Prefix.second, SA); 1383 1384 if (Opts.NewStructPathTBAA) 1385 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1386 1387 if (Opts.OptimizeSize == 1) 1388 GenerateArg(Args, OPT_O, "s", SA); 1389 else if (Opts.OptimizeSize == 2) 1390 GenerateArg(Args, OPT_O, "z", SA); 1391 1392 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1393 // -ffreestanding. We'll consider that when generating them. 1394 1395 // NoBuiltinFuncs are generated by LangOptions. 1396 1397 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1398 GenerateArg(Args, OPT_funroll_loops, SA); 1399 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1400 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1401 1402 if (!Opts.BinutilsVersion.empty()) 1403 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1404 1405 if (Opts.DebugNameTable == 1406 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1407 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1408 else if (Opts.DebugNameTable == 1409 static_cast<unsigned>( 1410 llvm::DICompileUnit::DebugNameTableKind::Default)) 1411 GenerateArg(Args, OPT_gpubnames, SA); 1412 1413 auto TNK = Opts.getDebugSimpleTemplateNames(); 1414 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1415 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1416 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1417 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1418 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1419 } 1420 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1421 // it or PGOUseInstrumentor. 1422 1423 if (Opts.TimePasses) { 1424 if (Opts.TimePassesPerRun) 1425 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1426 else 1427 GenerateArg(Args, OPT_ftime_report, SA); 1428 } 1429 1430 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1431 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1432 1433 if (Opts.PrepareForThinLTO) 1434 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1435 1436 if (!Opts.ThinLTOIndexFile.empty()) 1437 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1438 1439 if (Opts.SaveTempsFilePrefix == OutputFile) 1440 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1441 1442 StringRef MemProfileBasename("memprof.profraw"); 1443 if (!Opts.MemoryProfileOutput.empty()) { 1444 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1445 GenerateArg(Args, OPT_fmemory_profile, SA); 1446 } else { 1447 size_t ArgLength = 1448 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1449 GenerateArg(Args, OPT_fmemory_profile_EQ, 1450 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1451 } 1452 } 1453 1454 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1455 GenerateArg(Args, OPT_coverage_version_EQ, 1456 StringRef(Opts.CoverageVersion, 4), SA); 1457 1458 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1459 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1460 // won't be generated.) 1461 1462 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1463 std::string InstrBundle = 1464 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1465 if (!InstrBundle.empty()) 1466 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1467 } 1468 1469 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1470 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1471 else if (Opts.CFProtectionReturn) 1472 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1473 else if (Opts.CFProtectionBranch) 1474 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1475 1476 for (const auto &F : Opts.LinkBitcodeFiles) { 1477 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1478 F.PropagateAttrs && F.Internalize; 1479 GenerateArg(Args, 1480 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1481 F.Filename, SA); 1482 } 1483 1484 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1485 // That would make it easy to generate the option only **once** if it was 1486 // explicitly set to non-default value. 1487 if (Opts.ExplicitEmulatedTLS) { 1488 GenerateArg( 1489 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1490 } 1491 1492 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1493 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1494 1495 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1496 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1497 SA); 1498 1499 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1500 OptSpecifier Opt = 1501 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1502 GenerateArg(Args, Opt, SA); 1503 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1504 OptSpecifier Opt = 1505 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1506 GenerateArg(Args, Opt, SA); 1507 } 1508 1509 if (Opts.EnableAIXExtendedAltivecABI) 1510 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1511 1512 if (!Opts.OptRecordPasses.empty()) 1513 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1514 1515 if (!Opts.OptRecordFormat.empty()) 1516 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1517 1518 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1519 Opts.OptimizationRemark); 1520 1521 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1522 Opts.OptimizationRemarkMissed); 1523 1524 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1525 Opts.OptimizationRemarkAnalysis); 1526 1527 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1528 Opts.DiagnosticsHotnessThreshold 1529 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1530 : "auto", 1531 SA); 1532 1533 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1534 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1535 1536 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1537 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1538 1539 if (!Opts.EmitVersionIdentMetadata) 1540 GenerateArg(Args, OPT_Qn, SA); 1541 1542 switch (Opts.FiniteLoops) { 1543 case CodeGenOptions::FiniteLoopsKind::Language: 1544 break; 1545 case CodeGenOptions::FiniteLoopsKind::Always: 1546 GenerateArg(Args, OPT_ffinite_loops, SA); 1547 break; 1548 case CodeGenOptions::FiniteLoopsKind::Never: 1549 GenerateArg(Args, OPT_fno_finite_loops, SA); 1550 break; 1551 } 1552 } 1553 1554 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1555 InputKind IK, 1556 DiagnosticsEngine &Diags, 1557 const llvm::Triple &T, 1558 const std::string &OutputFile, 1559 const LangOptions &LangOptsRef) { 1560 unsigned NumErrorsBefore = Diags.getNumErrors(); 1561 1562 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1563 // TODO: This could be done in Driver 1564 unsigned MaxOptLevel = 3; 1565 if (OptimizationLevel > MaxOptLevel) { 1566 // If the optimization level is not supported, fall back on the default 1567 // optimization 1568 Diags.Report(diag::warn_drv_optimization_value) 1569 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1570 OptimizationLevel = MaxOptLevel; 1571 } 1572 Opts.OptimizationLevel = OptimizationLevel; 1573 1574 // The key paths of codegen options defined in Options.td start with 1575 // "CodeGenOpts.". Let's provide the expected variable name and type. 1576 CodeGenOptions &CodeGenOpts = Opts; 1577 // Some codegen options depend on language options. Let's provide the expected 1578 // variable name and type. 1579 const LangOptions *LangOpts = &LangOptsRef; 1580 1581 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1582 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1583 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1584 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1585 MERGER, EXTRACTOR, TABLE_INDEX) \ 1586 PARSE_OPTION_WITH_MARSHALLING( \ 1587 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1588 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1589 #include "clang/Driver/Options.inc" 1590 #undef CODEGEN_OPTION_WITH_MARSHALLING 1591 1592 // At O0 we want to fully disable inlining outside of cases marked with 1593 // 'alwaysinline' that are required for correctness. 1594 Opts.setInlining((Opts.OptimizationLevel == 0) 1595 ? CodeGenOptions::OnlyAlwaysInlining 1596 : CodeGenOptions::NormalInlining); 1597 // Explicit inlining flags can disable some or all inlining even at 1598 // optimization levels above zero. 1599 if (Arg *InlineArg = Args.getLastArg( 1600 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1601 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1602 if (Opts.OptimizationLevel > 0) { 1603 const Option &InlineOpt = InlineArg->getOption(); 1604 if (InlineOpt.matches(options::OPT_finline_functions)) 1605 Opts.setInlining(CodeGenOptions::NormalInlining); 1606 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1607 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1608 else 1609 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1610 } 1611 } 1612 1613 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1614 // -fdirect-access-external-data. 1615 Opts.DirectAccessExternalData = 1616 Args.hasArg(OPT_fdirect_access_external_data) || 1617 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1618 LangOpts->PICLevel == 0); 1619 1620 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1621 unsigned Val = 1622 llvm::StringSwitch<unsigned>(A->getValue()) 1623 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1624 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1625 .Case("constructor", codegenoptions::DebugInfoConstructor) 1626 .Case("limited", codegenoptions::LimitedDebugInfo) 1627 .Case("standalone", codegenoptions::FullDebugInfo) 1628 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1629 .Default(~0U); 1630 if (Val == ~0U) 1631 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1632 << A->getValue(); 1633 else 1634 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1635 } 1636 1637 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1638 // constructor homing, and vice versa for -fno-use-ctor-homing. 1639 if (const Arg *A = 1640 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1641 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1642 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1643 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1644 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1645 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1646 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1647 } 1648 1649 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1650 auto Split = StringRef(Arg).split('='); 1651 Opts.DebugPrefixMap.insert( 1652 {std::string(Split.first), std::string(Split.second)}); 1653 } 1654 1655 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1656 auto Split = StringRef(Arg).split('='); 1657 Opts.CoveragePrefixMap.insert( 1658 {std::string(Split.first), std::string(Split.second)}); 1659 } 1660 1661 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1662 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1663 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1664 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1665 1666 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1667 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1668 Opts.EmitCallSiteInfo = true; 1669 1670 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1671 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1672 << Opts.DIBugsReportFilePath; 1673 Opts.DIBugsReportFilePath = ""; 1674 } 1675 1676 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1677 Args.hasArg(OPT_new_struct_path_tbaa); 1678 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1679 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1680 if (Opts.SimplifyLibCalls) 1681 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1682 Opts.UnrollLoops = 1683 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1684 (Opts.OptimizationLevel > 1)); 1685 Opts.BinutilsVersion = 1686 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1687 1688 Opts.DebugNameTable = static_cast<unsigned>( 1689 Args.hasArg(OPT_ggnu_pubnames) 1690 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1691 : Args.hasArg(OPT_gpubnames) 1692 ? llvm::DICompileUnit::DebugNameTableKind::Default 1693 : llvm::DICompileUnit::DebugNameTableKind::None); 1694 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1695 StringRef Value = A->getValue(); 1696 if (Value != "simple" && Value != "mangled") 1697 Diags.Report(diag::err_drv_unsupported_option_argument) 1698 << A->getOption().getName() << A->getValue(); 1699 Opts.setDebugSimpleTemplateNames( 1700 StringRef(A->getValue()) == "simple" 1701 ? codegenoptions::DebugTemplateNamesKind::Simple 1702 : codegenoptions::DebugTemplateNamesKind::Mangled); 1703 } 1704 1705 if (!Opts.ProfileInstrumentUsePath.empty()) 1706 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1707 1708 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1709 Opts.TimePasses = true; 1710 1711 // -ftime-report= is only for new pass manager. 1712 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1713 if (Opts.LegacyPassManager) 1714 Diags.Report(diag::err_drv_argument_only_allowed_with) 1715 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1716 1717 StringRef Val = A->getValue(); 1718 if (Val == "per-pass") 1719 Opts.TimePassesPerRun = false; 1720 else if (Val == "per-pass-run") 1721 Opts.TimePassesPerRun = true; 1722 else 1723 Diags.Report(diag::err_drv_invalid_value) 1724 << A->getAsString(Args) << A->getValue(); 1725 } 1726 } 1727 1728 Opts.PrepareForLTO = false; 1729 Opts.PrepareForThinLTO = false; 1730 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1731 Opts.PrepareForLTO = true; 1732 StringRef S = A->getValue(); 1733 if (S == "thin") 1734 Opts.PrepareForThinLTO = true; 1735 else if (S != "full") 1736 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1737 } 1738 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1739 if (IK.getLanguage() != Language::LLVM_IR) 1740 Diags.Report(diag::err_drv_argument_only_allowed_with) 1741 << A->getAsString(Args) << "-x ir"; 1742 Opts.ThinLTOIndexFile = 1743 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1744 } 1745 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1746 Opts.SaveTempsFilePrefix = 1747 llvm::StringSwitch<std::string>(A->getValue()) 1748 .Case("obj", OutputFile) 1749 .Default(llvm::sys::path::filename(OutputFile).str()); 1750 1751 // The memory profile runtime appends the pid to make this name more unique. 1752 const char *MemProfileBasename = "memprof.profraw"; 1753 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1754 SmallString<128> Path( 1755 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1756 llvm::sys::path::append(Path, MemProfileBasename); 1757 Opts.MemoryProfileOutput = std::string(Path); 1758 } else if (Args.hasArg(OPT_fmemory_profile)) 1759 Opts.MemoryProfileOutput = MemProfileBasename; 1760 1761 memcpy(Opts.CoverageVersion, "408*", 4); 1762 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1763 if (Args.hasArg(OPT_coverage_version_EQ)) { 1764 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1765 if (CoverageVersion.size() != 4) { 1766 Diags.Report(diag::err_drv_invalid_value) 1767 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1768 << CoverageVersion; 1769 } else { 1770 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1771 } 1772 } 1773 } 1774 // FIXME: For backend options that are not yet recorded as function 1775 // attributes in the IR, keep track of them so we can embed them in a 1776 // separate data section and use them when building the bitcode. 1777 for (const auto &A : Args) { 1778 // Do not encode output and input. 1779 if (A->getOption().getID() == options::OPT_o || 1780 A->getOption().getID() == options::OPT_INPUT || 1781 A->getOption().getID() == options::OPT_x || 1782 A->getOption().getID() == options::OPT_fembed_bitcode || 1783 A->getOption().matches(options::OPT_W_Group)) 1784 continue; 1785 ArgStringList ASL; 1786 A->render(Args, ASL); 1787 for (const auto &arg : ASL) { 1788 StringRef ArgStr(arg); 1789 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1790 // using \00 to separate each commandline options. 1791 Opts.CmdArgs.push_back('\0'); 1792 } 1793 } 1794 1795 auto XRayInstrBundles = 1796 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1797 if (XRayInstrBundles.empty()) 1798 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1799 else 1800 for (const auto &A : XRayInstrBundles) 1801 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1802 Diags, Opts.XRayInstrumentationBundle); 1803 1804 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1805 StringRef Name = A->getValue(); 1806 if (Name == "full") { 1807 Opts.CFProtectionReturn = 1; 1808 Opts.CFProtectionBranch = 1; 1809 } else if (Name == "return") 1810 Opts.CFProtectionReturn = 1; 1811 else if (Name == "branch") 1812 Opts.CFProtectionBranch = 1; 1813 else if (Name != "none") 1814 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1815 } 1816 1817 for (auto *A : 1818 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1819 CodeGenOptions::BitcodeFileToLink F; 1820 F.Filename = A->getValue(); 1821 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1822 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1823 // When linking CUDA bitcode, propagate function attributes so that 1824 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1825 F.PropagateAttrs = true; 1826 F.Internalize = true; 1827 } 1828 Opts.LinkBitcodeFiles.push_back(F); 1829 } 1830 1831 if (Args.getLastArg(OPT_femulated_tls) || 1832 Args.getLastArg(OPT_fno_emulated_tls)) { 1833 Opts.ExplicitEmulatedTLS = true; 1834 } 1835 1836 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1837 if (T.isOSAIX()) { 1838 StringRef Name = A->getValue(); 1839 if (Name != "global-dynamic") 1840 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1841 } 1842 } 1843 1844 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1845 StringRef Val = A->getValue(); 1846 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1847 if (!Opts.FPDenormalMode.isValid()) 1848 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1849 } 1850 1851 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1852 StringRef Val = A->getValue(); 1853 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1854 if (!Opts.FP32DenormalMode.isValid()) 1855 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1856 } 1857 1858 // X86_32 has -fppc-struct-return and -freg-struct-return. 1859 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1860 if (Arg *A = 1861 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1862 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1863 // TODO: We might want to consider enabling these options on AIX in the 1864 // future. 1865 if (T.isOSAIX()) 1866 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1867 << A->getSpelling() << T.str(); 1868 1869 const Option &O = A->getOption(); 1870 if (O.matches(OPT_fpcc_struct_return) || 1871 O.matches(OPT_maix_struct_return)) { 1872 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1873 } else { 1874 assert(O.matches(OPT_freg_struct_return) || 1875 O.matches(OPT_msvr4_struct_return)); 1876 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1877 } 1878 } 1879 1880 if (Arg *A = 1881 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1882 if (!T.isOSAIX()) 1883 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1884 << A->getSpelling() << T.str(); 1885 1886 const Option &O = A->getOption(); 1887 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1888 } 1889 1890 bool NeedLocTracking = false; 1891 1892 if (!Opts.OptRecordFile.empty()) 1893 NeedLocTracking = true; 1894 1895 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1896 Opts.OptRecordPasses = A->getValue(); 1897 NeedLocTracking = true; 1898 } 1899 1900 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1901 Opts.OptRecordFormat = A->getValue(); 1902 NeedLocTracking = true; 1903 } 1904 1905 Opts.OptimizationRemark = 1906 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1907 1908 Opts.OptimizationRemarkMissed = 1909 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1910 1911 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1912 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1913 1914 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1915 Opts.OptimizationRemarkMissed.hasValidPattern() || 1916 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1917 1918 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1919 bool UsingProfile = UsingSampleProfile || 1920 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1921 1922 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1923 // An IR file will contain PGO as metadata 1924 IK.getLanguage() != Language::LLVM_IR) 1925 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1926 << "-fdiagnostics-show-hotness"; 1927 1928 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1929 if (auto *arg = 1930 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1931 auto ResultOrErr = 1932 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1933 1934 if (!ResultOrErr) { 1935 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1936 << "-fdiagnostics-hotness-threshold="; 1937 } else { 1938 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1939 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1940 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1941 !UsingProfile) 1942 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1943 << "-fdiagnostics-hotness-threshold="; 1944 } 1945 } 1946 1947 // If the user requested to use a sample profile for PGO, then the 1948 // backend will need to track source location information so the profile 1949 // can be incorporated into the IR. 1950 if (UsingSampleProfile) 1951 NeedLocTracking = true; 1952 1953 if (!Opts.StackUsageOutput.empty()) 1954 NeedLocTracking = true; 1955 1956 // If the user requested a flag that requires source locations available in 1957 // the backend, make sure that the backend tracks source location information. 1958 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1959 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1960 1961 // Parse -fsanitize-recover= arguments. 1962 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1963 parseSanitizerKinds("-fsanitize-recover=", 1964 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1965 Opts.SanitizeRecover); 1966 parseSanitizerKinds("-fsanitize-trap=", 1967 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1968 Opts.SanitizeTrap); 1969 1970 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1971 1972 if (Args.hasArg(options::OPT_ffinite_loops)) 1973 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1974 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1975 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1976 1977 Opts.EmitIEEENaNCompliantInsts = 1978 Args.hasFlag(options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee); 1979 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 1980 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 1981 1982 return Diags.getNumErrors() == NumErrorsBefore; 1983 } 1984 1985 static void 1986 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1987 SmallVectorImpl<const char *> &Args, 1988 CompilerInvocation::StringAllocator SA) { 1989 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1990 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1991 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1992 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1993 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1994 MERGER, EXTRACTOR, TABLE_INDEX) \ 1995 GENERATE_OPTION_WITH_MARSHALLING( \ 1996 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1997 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1998 #include "clang/Driver/Options.inc" 1999 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2000 2001 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2002 GenerateArg(Args, OPT_show_includes, SA); 2003 2004 for (const auto &Dep : Opts.ExtraDeps) { 2005 switch (Dep.second) { 2006 case EDK_SanitizeIgnorelist: 2007 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2008 continue; 2009 case EDK_ModuleFile: 2010 // Module file arguments are generated from FrontendOptions and 2011 // HeaderSearchOptions. 2012 continue; 2013 case EDK_ProfileList: 2014 // Profile list arguments are generated from LanguageOptions via the 2015 // marshalling infrastructure. 2016 continue; 2017 case EDK_DepFileEntry: 2018 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2019 break; 2020 } 2021 } 2022 } 2023 2024 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2025 ArgList &Args, DiagnosticsEngine &Diags, 2026 frontend::ActionKind Action, 2027 bool ShowLineMarkers) { 2028 unsigned NumErrorsBefore = Diags.getNumErrors(); 2029 2030 DependencyOutputOptions &DependencyOutputOpts = Opts; 2031 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2032 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2033 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2034 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2035 MERGER, EXTRACTOR, TABLE_INDEX) \ 2036 PARSE_OPTION_WITH_MARSHALLING( \ 2037 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2038 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2039 #include "clang/Driver/Options.inc" 2040 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2041 2042 if (Args.hasArg(OPT_show_includes)) { 2043 // Writing both /showIncludes and preprocessor output to stdout 2044 // would produce interleaved output, so use stderr for /showIncludes. 2045 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2046 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2047 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2048 else 2049 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2050 } else { 2051 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2052 } 2053 2054 // Add sanitizer ignorelists as extra dependencies. 2055 // They won't be discovered by the regular preprocessor, so 2056 // we let make / ninja to know about this implicit dependency. 2057 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2058 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2059 StringRef Val = A->getValue(); 2060 if (!Val.contains('=')) 2061 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2062 } 2063 if (Opts.IncludeSystemHeaders) { 2064 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2065 StringRef Val = A->getValue(); 2066 if (!Val.contains('=')) 2067 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2068 } 2069 } 2070 } 2071 2072 // -fprofile-list= dependencies. 2073 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2074 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2075 2076 // Propagate the extra dependencies. 2077 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2078 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2079 2080 // Only the -fmodule-file=<file> form. 2081 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2082 StringRef Val = A->getValue(); 2083 if (!Val.contains('=')) 2084 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2085 } 2086 2087 return Diags.getNumErrors() == NumErrorsBefore; 2088 } 2089 2090 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2091 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2092 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2093 // Support both clang's -f[no-]color-diagnostics and gcc's 2094 // -f[no-]diagnostics-colors[=never|always|auto]. 2095 enum { 2096 Colors_On, 2097 Colors_Off, 2098 Colors_Auto 2099 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2100 for (auto *A : Args) { 2101 const Option &O = A->getOption(); 2102 if (O.matches(options::OPT_fcolor_diagnostics) || 2103 O.matches(options::OPT_fdiagnostics_color)) { 2104 ShowColors = Colors_On; 2105 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2106 O.matches(options::OPT_fno_diagnostics_color)) { 2107 ShowColors = Colors_Off; 2108 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2109 StringRef Value(A->getValue()); 2110 if (Value == "always") 2111 ShowColors = Colors_On; 2112 else if (Value == "never") 2113 ShowColors = Colors_Off; 2114 else if (Value == "auto") 2115 ShowColors = Colors_Auto; 2116 } 2117 } 2118 return ShowColors == Colors_On || 2119 (ShowColors == Colors_Auto && 2120 llvm::sys::Process::StandardErrHasColors()); 2121 } 2122 2123 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2124 DiagnosticsEngine &Diags) { 2125 bool Success = true; 2126 for (const auto &Prefix : VerifyPrefixes) { 2127 // Every prefix must start with a letter and contain only alphanumeric 2128 // characters, hyphens, and underscores. 2129 auto BadChar = llvm::find_if(Prefix, [](char C) { 2130 return !isAlphanumeric(C) && C != '-' && C != '_'; 2131 }); 2132 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2133 Success = false; 2134 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2135 Diags.Report(diag::note_drv_verify_prefix_spelling); 2136 } 2137 } 2138 return Success; 2139 } 2140 2141 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2142 SmallVectorImpl<const char *> &Args, 2143 CompilerInvocation::StringAllocator SA) { 2144 const FileSystemOptions &FileSystemOpts = Opts; 2145 2146 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2147 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2148 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2149 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2150 MERGER, EXTRACTOR, TABLE_INDEX) \ 2151 GENERATE_OPTION_WITH_MARSHALLING( \ 2152 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2153 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2154 #include "clang/Driver/Options.inc" 2155 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2156 } 2157 2158 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2159 DiagnosticsEngine &Diags) { 2160 unsigned NumErrorsBefore = Diags.getNumErrors(); 2161 2162 FileSystemOptions &FileSystemOpts = Opts; 2163 2164 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2165 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2166 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2167 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2168 MERGER, EXTRACTOR, TABLE_INDEX) \ 2169 PARSE_OPTION_WITH_MARSHALLING( \ 2170 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2171 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2172 #include "clang/Driver/Options.inc" 2173 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2174 2175 return Diags.getNumErrors() == NumErrorsBefore; 2176 } 2177 2178 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2179 SmallVectorImpl<const char *> &Args, 2180 CompilerInvocation::StringAllocator SA) { 2181 const MigratorOptions &MigratorOpts = Opts; 2182 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2183 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2184 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2185 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2186 MERGER, EXTRACTOR, TABLE_INDEX) \ 2187 GENERATE_OPTION_WITH_MARSHALLING( \ 2188 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2189 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2190 #include "clang/Driver/Options.inc" 2191 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2192 } 2193 2194 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2195 DiagnosticsEngine &Diags) { 2196 unsigned NumErrorsBefore = Diags.getNumErrors(); 2197 2198 MigratorOptions &MigratorOpts = Opts; 2199 2200 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2201 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2202 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2203 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2204 MERGER, EXTRACTOR, TABLE_INDEX) \ 2205 PARSE_OPTION_WITH_MARSHALLING( \ 2206 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2207 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2208 #include "clang/Driver/Options.inc" 2209 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2210 2211 return Diags.getNumErrors() == NumErrorsBefore; 2212 } 2213 2214 void CompilerInvocation::GenerateDiagnosticArgs( 2215 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2216 StringAllocator SA, bool DefaultDiagColor) { 2217 const DiagnosticOptions *DiagnosticOpts = &Opts; 2218 #define DIAG_OPTION_WITH_MARSHALLING( \ 2219 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2220 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2221 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2222 MERGER, EXTRACTOR, TABLE_INDEX) \ 2223 GENERATE_OPTION_WITH_MARSHALLING( \ 2224 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2225 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2226 #include "clang/Driver/Options.inc" 2227 #undef DIAG_OPTION_WITH_MARSHALLING 2228 2229 if (!Opts.DiagnosticSerializationFile.empty()) 2230 GenerateArg(Args, OPT_diagnostic_serialized_file, 2231 Opts.DiagnosticSerializationFile, SA); 2232 2233 if (Opts.ShowColors) 2234 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2235 2236 if (Opts.VerifyDiagnostics && 2237 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2238 GenerateArg(Args, OPT_verify, SA); 2239 2240 for (const auto &Prefix : Opts.VerifyPrefixes) 2241 if (Prefix != "expected") 2242 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2243 2244 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2245 if (VIU == DiagnosticLevelMask::None) { 2246 // This is the default, don't generate anything. 2247 } else if (VIU == DiagnosticLevelMask::All) { 2248 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2249 } else { 2250 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2251 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2252 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2253 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2254 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2255 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2256 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2257 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2258 } 2259 2260 for (const auto &Warning : Opts.Warnings) { 2261 // This option is automatically generated from UndefPrefixes. 2262 if (Warning == "undef-prefix") 2263 continue; 2264 Args.push_back(SA(StringRef("-W") + Warning)); 2265 } 2266 2267 for (const auto &Remark : Opts.Remarks) { 2268 // These arguments are generated from OptimizationRemark fields of 2269 // CodeGenOptions. 2270 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2271 "pass-analysis", "no-pass-analysis", 2272 "pass-missed", "no-pass-missed"}; 2273 if (llvm::is_contained(IgnoredRemarks, Remark)) 2274 continue; 2275 2276 Args.push_back(SA(StringRef("-R") + Remark)); 2277 } 2278 } 2279 2280 std::unique_ptr<DiagnosticOptions> 2281 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2282 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2283 unsigned MissingArgIndex, MissingArgCount; 2284 InputArgList Args = getDriverOptTable().ParseArgs( 2285 Argv.slice(1), MissingArgIndex, MissingArgCount); 2286 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2287 // Any errors that would be diagnosed here will also be diagnosed later, 2288 // when the DiagnosticsEngine actually exists. 2289 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2290 return DiagOpts; 2291 } 2292 2293 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2294 DiagnosticsEngine *Diags, 2295 bool DefaultDiagColor) { 2296 Optional<DiagnosticsEngine> IgnoringDiags; 2297 if (!Diags) { 2298 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2299 new IgnoringDiagConsumer()); 2300 Diags = &*IgnoringDiags; 2301 } 2302 2303 unsigned NumErrorsBefore = Diags->getNumErrors(); 2304 2305 // The key paths of diagnostic options defined in Options.td start with 2306 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2307 DiagnosticOptions *DiagnosticOpts = &Opts; 2308 2309 #define DIAG_OPTION_WITH_MARSHALLING( \ 2310 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2311 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2312 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2313 MERGER, EXTRACTOR, TABLE_INDEX) \ 2314 PARSE_OPTION_WITH_MARSHALLING( \ 2315 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2316 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2317 #include "clang/Driver/Options.inc" 2318 #undef DIAG_OPTION_WITH_MARSHALLING 2319 2320 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2321 2322 if (Arg *A = 2323 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2324 Opts.DiagnosticSerializationFile = A->getValue(); 2325 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2326 2327 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2328 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2329 if (Args.hasArg(OPT_verify)) 2330 Opts.VerifyPrefixes.push_back("expected"); 2331 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2332 // then sort it to prepare for fast lookup using std::binary_search. 2333 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2334 Opts.VerifyDiagnostics = false; 2335 else 2336 llvm::sort(Opts.VerifyPrefixes); 2337 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2338 parseDiagnosticLevelMask( 2339 "-verify-ignore-unexpected=", 2340 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2341 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2342 DiagMask = DiagnosticLevelMask::All; 2343 Opts.setVerifyIgnoreUnexpected(DiagMask); 2344 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2345 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2346 Diags->Report(diag::warn_ignoring_ftabstop_value) 2347 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2348 } 2349 2350 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2351 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2352 2353 return Diags->getNumErrors() == NumErrorsBefore; 2354 } 2355 2356 /// Parse the argument to the -ftest-module-file-extension 2357 /// command-line argument. 2358 /// 2359 /// \returns true on error, false on success. 2360 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2361 std::string &BlockName, 2362 unsigned &MajorVersion, 2363 unsigned &MinorVersion, 2364 bool &Hashed, 2365 std::string &UserInfo) { 2366 SmallVector<StringRef, 5> Args; 2367 Arg.split(Args, ':', 5); 2368 if (Args.size() < 5) 2369 return true; 2370 2371 BlockName = std::string(Args[0]); 2372 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2373 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2374 if (Args[3].getAsInteger(2, Hashed)) return true; 2375 if (Args.size() > 4) 2376 UserInfo = std::string(Args[4]); 2377 return false; 2378 } 2379 2380 /// Return a table that associates command line option specifiers with the 2381 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2382 /// intentionally missing, as this case is handled separately from other 2383 /// frontend options. 2384 static const auto &getFrontendActionTable() { 2385 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2386 {frontend::ASTDeclList, OPT_ast_list}, 2387 2388 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2389 {frontend::ASTDump, OPT_ast_dump_all}, 2390 {frontend::ASTDump, OPT_ast_dump_EQ}, 2391 {frontend::ASTDump, OPT_ast_dump}, 2392 {frontend::ASTDump, OPT_ast_dump_lookups}, 2393 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2394 2395 {frontend::ASTPrint, OPT_ast_print}, 2396 {frontend::ASTView, OPT_ast_view}, 2397 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2398 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2399 {frontend::DumpTokens, OPT_dump_tokens}, 2400 {frontend::EmitAssembly, OPT_S}, 2401 {frontend::EmitBC, OPT_emit_llvm_bc}, 2402 {frontend::EmitHTML, OPT_emit_html}, 2403 {frontend::EmitLLVM, OPT_emit_llvm}, 2404 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2405 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2406 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2407 {frontend::EmitObj, OPT_emit_obj}, 2408 2409 {frontend::FixIt, OPT_fixit_EQ}, 2410 {frontend::FixIt, OPT_fixit}, 2411 2412 {frontend::GenerateModule, OPT_emit_module}, 2413 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2414 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2415 {frontend::GeneratePCH, OPT_emit_pch}, 2416 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2417 {frontend::InitOnly, OPT_init_only}, 2418 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2419 {frontend::ModuleFileInfo, OPT_module_file_info}, 2420 {frontend::VerifyPCH, OPT_verify_pch}, 2421 {frontend::PrintPreamble, OPT_print_preamble}, 2422 {frontend::PrintPreprocessedInput, OPT_E}, 2423 {frontend::TemplightDump, OPT_templight_dump}, 2424 {frontend::RewriteMacros, OPT_rewrite_macros}, 2425 {frontend::RewriteObjC, OPT_rewrite_objc}, 2426 {frontend::RewriteTest, OPT_rewrite_test}, 2427 {frontend::RunAnalysis, OPT_analyze}, 2428 {frontend::MigrateSource, OPT_migrate}, 2429 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2430 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2431 OPT_print_dependency_directives_minimized_source}, 2432 }; 2433 2434 return Table; 2435 } 2436 2437 /// Maps command line option to frontend action. 2438 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2439 for (const auto &ActionOpt : getFrontendActionTable()) 2440 if (ActionOpt.second == Opt.getID()) 2441 return ActionOpt.first; 2442 2443 return None; 2444 } 2445 2446 /// Maps frontend action to command line option. 2447 static Optional<OptSpecifier> 2448 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2449 for (const auto &ActionOpt : getFrontendActionTable()) 2450 if (ActionOpt.first == ProgramAction) 2451 return OptSpecifier(ActionOpt.second); 2452 2453 return None; 2454 } 2455 2456 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2457 SmallVectorImpl<const char *> &Args, 2458 CompilerInvocation::StringAllocator SA, 2459 bool IsHeader) { 2460 const FrontendOptions &FrontendOpts = Opts; 2461 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2462 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2463 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2464 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2465 MERGER, EXTRACTOR, TABLE_INDEX) \ 2466 GENERATE_OPTION_WITH_MARSHALLING( \ 2467 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2468 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2469 #include "clang/Driver/Options.inc" 2470 #undef FRONTEND_OPTION_WITH_MARSHALLING 2471 2472 Optional<OptSpecifier> ProgramActionOpt = 2473 getProgramActionOpt(Opts.ProgramAction); 2474 2475 // Generating a simple flag covers most frontend actions. 2476 std::function<void()> GenerateProgramAction = [&]() { 2477 GenerateArg(Args, *ProgramActionOpt, SA); 2478 }; 2479 2480 if (!ProgramActionOpt) { 2481 // PluginAction is the only program action handled separately. 2482 assert(Opts.ProgramAction == frontend::PluginAction && 2483 "Frontend action without option."); 2484 GenerateProgramAction = [&]() { 2485 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2486 }; 2487 } 2488 2489 // FIXME: Simplify the complex 'AST dump' command line. 2490 if (Opts.ProgramAction == frontend::ASTDump) { 2491 GenerateProgramAction = [&]() { 2492 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2493 // marshalling infrastructure. 2494 2495 if (Opts.ASTDumpFormat != ADOF_Default) { 2496 StringRef Format; 2497 switch (Opts.ASTDumpFormat) { 2498 case ADOF_Default: 2499 llvm_unreachable("Default AST dump format."); 2500 case ADOF_JSON: 2501 Format = "json"; 2502 break; 2503 } 2504 2505 if (Opts.ASTDumpAll) 2506 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2507 if (Opts.ASTDumpDecls) 2508 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2509 } else { 2510 if (Opts.ASTDumpAll) 2511 GenerateArg(Args, OPT_ast_dump_all, SA); 2512 if (Opts.ASTDumpDecls) 2513 GenerateArg(Args, OPT_ast_dump, SA); 2514 } 2515 }; 2516 } 2517 2518 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2519 GenerateProgramAction = [&]() { 2520 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2521 }; 2522 } 2523 2524 GenerateProgramAction(); 2525 2526 for (const auto &PluginArgs : Opts.PluginArgs) { 2527 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2528 const char *Spelling = 2529 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2530 for (const auto &PluginArg : PluginArgs.second) 2531 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2532 } 2533 2534 for (const auto &Ext : Opts.ModuleFileExtensions) 2535 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2536 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2537 2538 if (!Opts.CodeCompletionAt.FileName.empty()) 2539 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2540 SA); 2541 2542 for (const auto &Plugin : Opts.Plugins) 2543 GenerateArg(Args, OPT_load, Plugin, SA); 2544 2545 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2546 2547 for (const auto &ModuleFile : Opts.ModuleFiles) 2548 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2549 2550 if (Opts.AuxTargetCPU.hasValue()) 2551 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2552 2553 if (Opts.AuxTargetFeatures.hasValue()) 2554 for (const auto &Feature : *Opts.AuxTargetFeatures) 2555 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2556 2557 { 2558 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2559 StringRef ModuleMap = 2560 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2561 StringRef Header = IsHeader ? "-header" : ""; 2562 2563 StringRef Lang; 2564 switch (Opts.DashX.getLanguage()) { 2565 case Language::C: 2566 Lang = "c"; 2567 break; 2568 case Language::OpenCL: 2569 Lang = "cl"; 2570 break; 2571 case Language::OpenCLCXX: 2572 Lang = "clcpp"; 2573 break; 2574 case Language::CUDA: 2575 Lang = "cuda"; 2576 break; 2577 case Language::HIP: 2578 Lang = "hip"; 2579 break; 2580 case Language::CXX: 2581 Lang = "c++"; 2582 break; 2583 case Language::ObjC: 2584 Lang = "objective-c"; 2585 break; 2586 case Language::ObjCXX: 2587 Lang = "objective-c++"; 2588 break; 2589 case Language::RenderScript: 2590 Lang = "renderscript"; 2591 break; 2592 case Language::Asm: 2593 Lang = "assembler-with-cpp"; 2594 break; 2595 case Language::Unknown: 2596 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2597 "Generating -x argument for unknown language (not precompiled)."); 2598 Lang = "ast"; 2599 break; 2600 case Language::LLVM_IR: 2601 Lang = "ir"; 2602 break; 2603 } 2604 2605 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2606 } 2607 2608 // OPT_INPUT has a unique class, generate it directly. 2609 for (const auto &Input : Opts.Inputs) 2610 Args.push_back(SA(Input.getFile())); 2611 } 2612 2613 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2614 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2615 unsigned NumErrorsBefore = Diags.getNumErrors(); 2616 2617 FrontendOptions &FrontendOpts = Opts; 2618 2619 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2620 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2621 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2622 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2623 MERGER, EXTRACTOR, TABLE_INDEX) \ 2624 PARSE_OPTION_WITH_MARSHALLING( \ 2625 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2626 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2627 #include "clang/Driver/Options.inc" 2628 #undef FRONTEND_OPTION_WITH_MARSHALLING 2629 2630 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2631 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2632 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2633 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2634 assert(ProgramAction && "Option specifier not in Action_Group."); 2635 2636 if (ProgramAction == frontend::ASTDump && 2637 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2638 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2639 .CaseLower("default", ADOF_Default) 2640 .CaseLower("json", ADOF_JSON) 2641 .Default(std::numeric_limits<unsigned>::max()); 2642 2643 if (Val != std::numeric_limits<unsigned>::max()) 2644 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2645 else { 2646 Diags.Report(diag::err_drv_invalid_value) 2647 << A->getAsString(Args) << A->getValue(); 2648 Opts.ASTDumpFormat = ADOF_Default; 2649 } 2650 } 2651 2652 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2653 Opts.FixItSuffix = A->getValue(); 2654 2655 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2656 StringRef ArgStr = 2657 Args.hasArg(OPT_interface_stub_version_EQ) 2658 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2659 : "ifs-v1"; 2660 if (ArgStr == "experimental-yaml-elf-v1" || 2661 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2662 ArgStr == "experimental-tapi-elf-v1") { 2663 std::string ErrorMessage = 2664 "Invalid interface stub format: " + ArgStr.str() + 2665 " is deprecated."; 2666 Diags.Report(diag::err_drv_invalid_value) 2667 << "Must specify a valid interface stub format type, ie: " 2668 "-interface-stub-version=ifs-v1" 2669 << ErrorMessage; 2670 ProgramAction = frontend::ParseSyntaxOnly; 2671 } else if (!ArgStr.startswith("ifs-")) { 2672 std::string ErrorMessage = 2673 "Invalid interface stub format: " + ArgStr.str() + "."; 2674 Diags.Report(diag::err_drv_invalid_value) 2675 << "Must specify a valid interface stub format type, ie: " 2676 "-interface-stub-version=ifs-v1" 2677 << ErrorMessage; 2678 ProgramAction = frontend::ParseSyntaxOnly; 2679 } 2680 } 2681 2682 Opts.ProgramAction = *ProgramAction; 2683 } 2684 2685 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2686 Opts.Plugins.emplace_back(A->getValue(0)); 2687 Opts.ProgramAction = frontend::PluginAction; 2688 Opts.ActionName = A->getValue(); 2689 } 2690 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2691 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2692 2693 for (const std::string &Arg : 2694 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2695 std::string BlockName; 2696 unsigned MajorVersion; 2697 unsigned MinorVersion; 2698 bool Hashed; 2699 std::string UserInfo; 2700 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2701 MinorVersion, Hashed, UserInfo)) { 2702 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2703 2704 continue; 2705 } 2706 2707 // Add the testing module file extension. 2708 Opts.ModuleFileExtensions.push_back( 2709 std::make_shared<TestModuleFileExtension>( 2710 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2711 } 2712 2713 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2714 Opts.CodeCompletionAt = 2715 ParsedSourceLocation::FromString(A->getValue()); 2716 if (Opts.CodeCompletionAt.FileName.empty()) 2717 Diags.Report(diag::err_drv_invalid_value) 2718 << A->getAsString(Args) << A->getValue(); 2719 } 2720 2721 Opts.Plugins = Args.getAllArgValues(OPT_load); 2722 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2723 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2724 // Only the -fmodule-file=<file> form. 2725 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2726 StringRef Val = A->getValue(); 2727 if (!Val.contains('=')) 2728 Opts.ModuleFiles.push_back(std::string(Val)); 2729 } 2730 2731 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2732 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2733 << "-emit-module"; 2734 2735 if (Args.hasArg(OPT_aux_target_cpu)) 2736 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2737 if (Args.hasArg(OPT_aux_target_feature)) 2738 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2739 2740 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2741 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2742 Diags.Report(diag::err_drv_argument_not_allowed_with) 2743 << "ARC migration" << "ObjC migration"; 2744 } 2745 2746 InputKind DashX(Language::Unknown); 2747 if (const Arg *A = Args.getLastArg(OPT_x)) { 2748 StringRef XValue = A->getValue(); 2749 2750 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2751 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2752 bool Preprocessed = XValue.consume_back("-cpp-output"); 2753 bool ModuleMap = XValue.consume_back("-module-map"); 2754 IsHeaderFile = !Preprocessed && !ModuleMap && 2755 XValue != "precompiled-header" && 2756 XValue.consume_back("-header"); 2757 2758 // Principal languages. 2759 DashX = llvm::StringSwitch<InputKind>(XValue) 2760 .Case("c", Language::C) 2761 .Case("cl", Language::OpenCL) 2762 .Case("clcpp", Language::OpenCLCXX) 2763 .Case("cuda", Language::CUDA) 2764 .Case("hip", Language::HIP) 2765 .Case("c++", Language::CXX) 2766 .Case("objective-c", Language::ObjC) 2767 .Case("objective-c++", Language::ObjCXX) 2768 .Case("renderscript", Language::RenderScript) 2769 .Default(Language::Unknown); 2770 2771 // "objc[++]-cpp-output" is an acceptable synonym for 2772 // "objective-c[++]-cpp-output". 2773 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2774 DashX = llvm::StringSwitch<InputKind>(XValue) 2775 .Case("objc", Language::ObjC) 2776 .Case("objc++", Language::ObjCXX) 2777 .Default(Language::Unknown); 2778 2779 // Some special cases cannot be combined with suffixes. 2780 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2781 DashX = llvm::StringSwitch<InputKind>(XValue) 2782 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2783 .Case("assembler-with-cpp", Language::Asm) 2784 .Cases("ast", "pcm", "precompiled-header", 2785 InputKind(Language::Unknown, InputKind::Precompiled)) 2786 .Case("ir", Language::LLVM_IR) 2787 .Default(Language::Unknown); 2788 2789 if (DashX.isUnknown()) 2790 Diags.Report(diag::err_drv_invalid_value) 2791 << A->getAsString(Args) << A->getValue(); 2792 2793 if (Preprocessed) 2794 DashX = DashX.getPreprocessed(); 2795 if (ModuleMap) 2796 DashX = DashX.withFormat(InputKind::ModuleMap); 2797 } 2798 2799 // '-' is the default input if none is given. 2800 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2801 Opts.Inputs.clear(); 2802 if (Inputs.empty()) 2803 Inputs.push_back("-"); 2804 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2805 InputKind IK = DashX; 2806 if (IK.isUnknown()) { 2807 IK = FrontendOptions::getInputKindForExtension( 2808 StringRef(Inputs[i]).rsplit('.').second); 2809 // FIXME: Warn on this? 2810 if (IK.isUnknown()) 2811 IK = Language::C; 2812 // FIXME: Remove this hack. 2813 if (i == 0) 2814 DashX = IK; 2815 } 2816 2817 bool IsSystem = false; 2818 2819 // The -emit-module action implicitly takes a module map. 2820 if (Opts.ProgramAction == frontend::GenerateModule && 2821 IK.getFormat() == InputKind::Source) { 2822 IK = IK.withFormat(InputKind::ModuleMap); 2823 IsSystem = Opts.IsSystemModule; 2824 } 2825 2826 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2827 } 2828 2829 Opts.DashX = DashX; 2830 2831 return Diags.getNumErrors() == NumErrorsBefore; 2832 } 2833 2834 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2835 void *MainAddr) { 2836 std::string ClangExecutable = 2837 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2838 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2839 } 2840 2841 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2842 SmallVectorImpl<const char *> &Args, 2843 CompilerInvocation::StringAllocator SA) { 2844 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2845 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2846 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2847 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2848 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2849 MERGER, EXTRACTOR, TABLE_INDEX) \ 2850 GENERATE_OPTION_WITH_MARSHALLING( \ 2851 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2852 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2853 #include "clang/Driver/Options.inc" 2854 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2855 2856 if (Opts.UseLibcxx) 2857 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2858 2859 if (!Opts.ModuleCachePath.empty()) 2860 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2861 2862 for (const auto &File : Opts.PrebuiltModuleFiles) 2863 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2864 2865 for (const auto &Path : Opts.PrebuiltModulePaths) 2866 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2867 2868 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2869 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2870 2871 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2872 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2873 llvm::Optional<bool> IsFramework, 2874 llvm::Optional<bool> IgnoreSysRoot) { 2875 return llvm::is_contained(Groups, Entry.Group) && 2876 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2877 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2878 }; 2879 2880 auto It = Opts.UserEntries.begin(); 2881 auto End = Opts.UserEntries.end(); 2882 2883 // Add -I..., -F..., and -index-header-map options in order. 2884 for (; It < End && 2885 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2886 ++It) { 2887 OptSpecifier Opt = [It, Matches]() { 2888 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2889 return OPT_F; 2890 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2891 return OPT_I; 2892 if (Matches(*It, frontend::Angled, true, true)) 2893 return OPT_F; 2894 if (Matches(*It, frontend::Angled, false, true)) 2895 return OPT_I; 2896 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2897 }(); 2898 2899 if (It->Group == frontend::IndexHeaderMap) 2900 GenerateArg(Args, OPT_index_header_map, SA); 2901 GenerateArg(Args, Opt, It->Path, SA); 2902 }; 2903 2904 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2905 // have already been generated as "-I[xx]yy". If that's the case, their 2906 // position on command line was such that this has no semantic impact on 2907 // include paths. 2908 for (; It < End && 2909 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2910 ++It) { 2911 OptSpecifier Opt = 2912 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2913 GenerateArg(Args, Opt, It->Path, SA); 2914 } 2915 2916 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2917 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2918 // command line was such that this has no semantic impact on include paths. 2919 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2920 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2921 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2922 GenerateArg(Args, OPT_iquote, It->Path, SA); 2923 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2924 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2925 It->Path, SA); 2926 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2927 GenerateArg(Args, OPT_iframework, It->Path, SA); 2928 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2929 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2930 2931 // Add the paths for the various language specific isystem flags. 2932 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2933 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2934 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2935 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2936 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2937 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2938 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2939 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2940 2941 // Add the internal paths from a driver that detects standard include paths. 2942 // Note: Some paths that came from "-internal-isystem" arguments may have 2943 // already been generated as "-isystem". If that's the case, their position on 2944 // command line was such that this has no semantic impact on include paths. 2945 for (; It < End && 2946 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2947 ++It) { 2948 OptSpecifier Opt = It->Group == frontend::System 2949 ? OPT_internal_isystem 2950 : OPT_internal_externc_isystem; 2951 GenerateArg(Args, Opt, It->Path, SA); 2952 } 2953 2954 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2955 2956 // Add the path prefixes which are implicitly treated as being system headers. 2957 for (const auto &P : Opts.SystemHeaderPrefixes) { 2958 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2959 : OPT_no_system_header_prefix; 2960 GenerateArg(Args, Opt, P.Prefix, SA); 2961 } 2962 2963 for (const std::string &F : Opts.VFSOverlayFiles) 2964 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2965 } 2966 2967 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2968 DiagnosticsEngine &Diags, 2969 const std::string &WorkingDir) { 2970 unsigned NumErrorsBefore = Diags.getNumErrors(); 2971 2972 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2973 2974 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2975 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2976 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2977 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2978 MERGER, EXTRACTOR, TABLE_INDEX) \ 2979 PARSE_OPTION_WITH_MARSHALLING( \ 2980 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2981 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2982 #include "clang/Driver/Options.inc" 2983 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2984 2985 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2986 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2987 2988 // Canonicalize -fmodules-cache-path before storing it. 2989 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2990 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2991 if (WorkingDir.empty()) 2992 llvm::sys::fs::make_absolute(P); 2993 else 2994 llvm::sys::fs::make_absolute(WorkingDir, P); 2995 } 2996 llvm::sys::path::remove_dots(P); 2997 Opts.ModuleCachePath = std::string(P.str()); 2998 2999 // Only the -fmodule-file=<name>=<file> form. 3000 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3001 StringRef Val = A->getValue(); 3002 if (Val.contains('=')) { 3003 auto Split = Val.split('='); 3004 Opts.PrebuiltModuleFiles.insert( 3005 {std::string(Split.first), std::string(Split.second)}); 3006 } 3007 } 3008 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3009 Opts.AddPrebuiltModulePath(A->getValue()); 3010 3011 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3012 StringRef MacroDef = A->getValue(); 3013 Opts.ModulesIgnoreMacros.insert( 3014 llvm::CachedHashString(MacroDef.split('=').first)); 3015 } 3016 3017 // Add -I..., -F..., and -index-header-map options in order. 3018 bool IsIndexHeaderMap = false; 3019 bool IsSysrootSpecified = 3020 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3021 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3022 if (A->getOption().matches(OPT_index_header_map)) { 3023 // -index-header-map applies to the next -I or -F. 3024 IsIndexHeaderMap = true; 3025 continue; 3026 } 3027 3028 frontend::IncludeDirGroup Group = 3029 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3030 3031 bool IsFramework = A->getOption().matches(OPT_F); 3032 std::string Path = A->getValue(); 3033 3034 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3035 SmallString<32> Buffer; 3036 llvm::sys::path::append(Buffer, Opts.Sysroot, 3037 llvm::StringRef(A->getValue()).substr(1)); 3038 Path = std::string(Buffer.str()); 3039 } 3040 3041 Opts.AddPath(Path, Group, IsFramework, 3042 /*IgnoreSysroot*/ true); 3043 IsIndexHeaderMap = false; 3044 } 3045 3046 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3047 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3048 for (const auto *A : 3049 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3050 if (A->getOption().matches(OPT_iprefix)) 3051 Prefix = A->getValue(); 3052 else if (A->getOption().matches(OPT_iwithprefix)) 3053 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3054 else 3055 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3056 } 3057 3058 for (const auto *A : Args.filtered(OPT_idirafter)) 3059 Opts.AddPath(A->getValue(), frontend::After, false, true); 3060 for (const auto *A : Args.filtered(OPT_iquote)) 3061 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3062 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3063 Opts.AddPath(A->getValue(), frontend::System, false, 3064 !A->getOption().matches(OPT_iwithsysroot)); 3065 for (const auto *A : Args.filtered(OPT_iframework)) 3066 Opts.AddPath(A->getValue(), frontend::System, true, true); 3067 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3068 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3069 /*IgnoreSysRoot=*/false); 3070 3071 // Add the paths for the various language specific isystem flags. 3072 for (const auto *A : Args.filtered(OPT_c_isystem)) 3073 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3074 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3075 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3076 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3077 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3078 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3079 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3080 3081 // Add the internal paths from a driver that detects standard include paths. 3082 for (const auto *A : 3083 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3084 frontend::IncludeDirGroup Group = frontend::System; 3085 if (A->getOption().matches(OPT_internal_externc_isystem)) 3086 Group = frontend::ExternCSystem; 3087 Opts.AddPath(A->getValue(), Group, false, true); 3088 } 3089 3090 // Add the path prefixes which are implicitly treated as being system headers. 3091 for (const auto *A : 3092 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3093 Opts.AddSystemHeaderPrefix( 3094 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3095 3096 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3097 Opts.AddVFSOverlayFile(A->getValue()); 3098 3099 return Diags.getNumErrors() == NumErrorsBefore; 3100 } 3101 3102 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3103 const llvm::Triple &T, 3104 std::vector<std::string> &Includes, 3105 LangStandard::Kind LangStd) { 3106 // Set some properties which depend solely on the input kind; it would be nice 3107 // to move these to the language standard, and have the driver resolve the 3108 // input kind + language standard. 3109 // 3110 // FIXME: Perhaps a better model would be for a single source file to have 3111 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3112 // simultaneously active? 3113 if (IK.getLanguage() == Language::Asm) { 3114 Opts.AsmPreprocessor = 1; 3115 } else if (IK.isObjectiveC()) { 3116 Opts.ObjC = 1; 3117 } 3118 3119 if (LangStd == LangStandard::lang_unspecified) { 3120 // Based on the base language, pick one. 3121 switch (IK.getLanguage()) { 3122 case Language::Unknown: 3123 case Language::LLVM_IR: 3124 llvm_unreachable("Invalid input kind!"); 3125 case Language::OpenCL: 3126 LangStd = LangStandard::lang_opencl12; 3127 break; 3128 case Language::OpenCLCXX: 3129 LangStd = LangStandard::lang_openclcpp10; 3130 break; 3131 case Language::CUDA: 3132 LangStd = LangStandard::lang_cuda; 3133 break; 3134 case Language::Asm: 3135 case Language::C: 3136 #if defined(CLANG_DEFAULT_STD_C) 3137 LangStd = CLANG_DEFAULT_STD_C; 3138 #else 3139 // The PS4 uses C99 as the default C standard. 3140 if (T.isPS4()) 3141 LangStd = LangStandard::lang_gnu99; 3142 else 3143 LangStd = LangStandard::lang_gnu17; 3144 #endif 3145 break; 3146 case Language::ObjC: 3147 #if defined(CLANG_DEFAULT_STD_C) 3148 LangStd = CLANG_DEFAULT_STD_C; 3149 #else 3150 LangStd = LangStandard::lang_gnu11; 3151 #endif 3152 break; 3153 case Language::CXX: 3154 case Language::ObjCXX: 3155 #if defined(CLANG_DEFAULT_STD_CXX) 3156 LangStd = CLANG_DEFAULT_STD_CXX; 3157 #else 3158 LangStd = LangStandard::lang_gnucxx14; 3159 #endif 3160 break; 3161 case Language::RenderScript: 3162 LangStd = LangStandard::lang_c99; 3163 break; 3164 case Language::HIP: 3165 LangStd = LangStandard::lang_hip; 3166 break; 3167 } 3168 } 3169 3170 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3171 Opts.LangStd = LangStd; 3172 Opts.LineComment = Std.hasLineComments(); 3173 Opts.C99 = Std.isC99(); 3174 Opts.C11 = Std.isC11(); 3175 Opts.C17 = Std.isC17(); 3176 Opts.C2x = Std.isC2x(); 3177 Opts.CPlusPlus = Std.isCPlusPlus(); 3178 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3179 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3180 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3181 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3182 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3183 Opts.GNUMode = Std.isGNUMode(); 3184 Opts.GNUCVersion = 0; 3185 Opts.HexFloats = Std.hasHexFloats(); 3186 Opts.ImplicitInt = Std.hasImplicitInt(); 3187 3188 // Set OpenCL Version. 3189 Opts.OpenCL = Std.isOpenCL(); 3190 if (LangStd == LangStandard::lang_opencl10) 3191 Opts.OpenCLVersion = 100; 3192 else if (LangStd == LangStandard::lang_opencl11) 3193 Opts.OpenCLVersion = 110; 3194 else if (LangStd == LangStandard::lang_opencl12) 3195 Opts.OpenCLVersion = 120; 3196 else if (LangStd == LangStandard::lang_opencl20) 3197 Opts.OpenCLVersion = 200; 3198 else if (LangStd == LangStandard::lang_opencl30) 3199 Opts.OpenCLVersion = 300; 3200 else if (LangStd == LangStandard::lang_openclcpp10) 3201 Opts.OpenCLCPlusPlusVersion = 100; 3202 else if (LangStd == LangStandard::lang_openclcpp2021) 3203 Opts.OpenCLCPlusPlusVersion = 202100; 3204 3205 // OpenCL has some additional defaults. 3206 if (Opts.OpenCL) { 3207 Opts.AltiVec = 0; 3208 Opts.ZVector = 0; 3209 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3210 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3211 Opts.OpenCLPipes = Opts.getOpenCLCompatibleVersion() == 200; 3212 Opts.OpenCLGenericAddressSpace = Opts.getOpenCLCompatibleVersion() == 200; 3213 3214 // Include default header file for OpenCL. 3215 if (Opts.IncludeDefaultHeader) { 3216 if (Opts.DeclareOpenCLBuiltins) { 3217 // Only include base header file for builtin types and constants. 3218 Includes.push_back("opencl-c-base.h"); 3219 } else { 3220 Includes.push_back("opencl-c.h"); 3221 } 3222 } 3223 } 3224 3225 Opts.HIP = IK.getLanguage() == Language::HIP; 3226 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3227 if (Opts.HIP) { 3228 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3229 // fuses multiplication/addition instructions without contract flag from 3230 // device library functions in LLVM bitcode, which causes accuracy loss in 3231 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3232 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3233 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3234 // FP contract option is used to allow fuse across statements in frontend 3235 // whereas respecting contract flag in backend. 3236 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3237 } else if (Opts.CUDA) { 3238 // Allow fuse across statements disregarding pragmas. 3239 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3240 } 3241 3242 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3243 3244 // OpenCL and C++ both have bool, true, false keywords. 3245 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3246 3247 // OpenCL has half keyword 3248 Opts.Half = Opts.OpenCL; 3249 } 3250 3251 /// Check if input file kind and language standard are compatible. 3252 static bool IsInputCompatibleWithStandard(InputKind IK, 3253 const LangStandard &S) { 3254 switch (IK.getLanguage()) { 3255 case Language::Unknown: 3256 case Language::LLVM_IR: 3257 llvm_unreachable("should not parse language flags for this input"); 3258 3259 case Language::C: 3260 case Language::ObjC: 3261 case Language::RenderScript: 3262 return S.getLanguage() == Language::C; 3263 3264 case Language::OpenCL: 3265 return S.getLanguage() == Language::OpenCL || 3266 S.getLanguage() == Language::OpenCLCXX; 3267 3268 case Language::OpenCLCXX: 3269 return S.getLanguage() == Language::OpenCLCXX; 3270 3271 case Language::CXX: 3272 case Language::ObjCXX: 3273 return S.getLanguage() == Language::CXX; 3274 3275 case Language::CUDA: 3276 // FIXME: What -std= values should be permitted for CUDA compilations? 3277 return S.getLanguage() == Language::CUDA || 3278 S.getLanguage() == Language::CXX; 3279 3280 case Language::HIP: 3281 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3282 3283 case Language::Asm: 3284 // Accept (and ignore) all -std= values. 3285 // FIXME: The -std= value is not ignored; it affects the tokenization 3286 // and preprocessing rules if we're preprocessing this asm input. 3287 return true; 3288 } 3289 3290 llvm_unreachable("unexpected input language"); 3291 } 3292 3293 /// Get language name for given input kind. 3294 static const StringRef GetInputKindName(InputKind IK) { 3295 switch (IK.getLanguage()) { 3296 case Language::C: 3297 return "C"; 3298 case Language::ObjC: 3299 return "Objective-C"; 3300 case Language::CXX: 3301 return "C++"; 3302 case Language::ObjCXX: 3303 return "Objective-C++"; 3304 case Language::OpenCL: 3305 return "OpenCL"; 3306 case Language::OpenCLCXX: 3307 return "C++ for OpenCL"; 3308 case Language::CUDA: 3309 return "CUDA"; 3310 case Language::RenderScript: 3311 return "RenderScript"; 3312 case Language::HIP: 3313 return "HIP"; 3314 3315 case Language::Asm: 3316 return "Asm"; 3317 case Language::LLVM_IR: 3318 return "LLVM IR"; 3319 3320 case Language::Unknown: 3321 break; 3322 } 3323 llvm_unreachable("unknown input language"); 3324 } 3325 3326 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3327 SmallVectorImpl<const char *> &Args, 3328 StringAllocator SA, 3329 const llvm::Triple &T, InputKind IK) { 3330 if (IK.getFormat() == InputKind::Precompiled || 3331 IK.getLanguage() == Language::LLVM_IR) { 3332 if (Opts.ObjCAutoRefCount) 3333 GenerateArg(Args, OPT_fobjc_arc, SA); 3334 if (Opts.PICLevel != 0) 3335 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3336 if (Opts.PIE) 3337 GenerateArg(Args, OPT_pic_is_pie, SA); 3338 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3339 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3340 3341 return; 3342 } 3343 3344 OptSpecifier StdOpt; 3345 switch (Opts.LangStd) { 3346 case LangStandard::lang_opencl10: 3347 case LangStandard::lang_opencl11: 3348 case LangStandard::lang_opencl12: 3349 case LangStandard::lang_opencl20: 3350 case LangStandard::lang_opencl30: 3351 case LangStandard::lang_openclcpp10: 3352 case LangStandard::lang_openclcpp2021: 3353 StdOpt = OPT_cl_std_EQ; 3354 break; 3355 default: 3356 StdOpt = OPT_std_EQ; 3357 break; 3358 } 3359 3360 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3361 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3362 3363 if (Opts.IncludeDefaultHeader) 3364 GenerateArg(Args, OPT_finclude_default_header, SA); 3365 if (Opts.DeclareOpenCLBuiltins) 3366 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3367 3368 const LangOptions *LangOpts = &Opts; 3369 3370 #define LANG_OPTION_WITH_MARSHALLING( \ 3371 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3372 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3373 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3374 MERGER, EXTRACTOR, TABLE_INDEX) \ 3375 GENERATE_OPTION_WITH_MARSHALLING( \ 3376 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3377 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3378 #include "clang/Driver/Options.inc" 3379 #undef LANG_OPTION_WITH_MARSHALLING 3380 3381 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3382 3383 if (Opts.ObjC) { 3384 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3385 3386 if (Opts.GC == LangOptions::GCOnly) 3387 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3388 else if (Opts.GC == LangOptions::HybridGC) 3389 GenerateArg(Args, OPT_fobjc_gc, SA); 3390 else if (Opts.ObjCAutoRefCount == 1) 3391 GenerateArg(Args, OPT_fobjc_arc, SA); 3392 3393 if (Opts.ObjCWeakRuntime) 3394 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3395 3396 if (Opts.ObjCWeak) 3397 GenerateArg(Args, OPT_fobjc_weak, SA); 3398 3399 if (Opts.ObjCSubscriptingLegacyRuntime) 3400 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3401 } 3402 3403 if (Opts.GNUCVersion != 0) { 3404 unsigned Major = Opts.GNUCVersion / 100 / 100; 3405 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3406 unsigned Patch = Opts.GNUCVersion % 100; 3407 GenerateArg(Args, OPT_fgnuc_version_EQ, 3408 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3409 } 3410 3411 if (Opts.IgnoreXCOFFVisibility) 3412 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3413 3414 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3415 GenerateArg(Args, OPT_ftrapv, SA); 3416 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3417 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3418 GenerateArg(Args, OPT_fwrapv, SA); 3419 } 3420 3421 if (Opts.MSCompatibilityVersion != 0) { 3422 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3423 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3424 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3425 GenerateArg(Args, OPT_fms_compatibility_version, 3426 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3427 } 3428 3429 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3430 if (!Opts.Trigraphs) 3431 GenerateArg(Args, OPT_fno_trigraphs, SA); 3432 } else { 3433 if (Opts.Trigraphs) 3434 GenerateArg(Args, OPT_ftrigraphs, SA); 3435 } 3436 3437 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3438 GenerateArg(Args, OPT_fblocks, SA); 3439 3440 if (Opts.ConvergentFunctions && 3441 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3442 GenerateArg(Args, OPT_fconvergent_functions, SA); 3443 3444 if (Opts.NoBuiltin && !Opts.Freestanding) 3445 GenerateArg(Args, OPT_fno_builtin, SA); 3446 3447 if (!Opts.NoBuiltin) 3448 for (const auto &Func : Opts.NoBuiltinFuncs) 3449 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3450 3451 if (Opts.LongDoubleSize == 128) 3452 GenerateArg(Args, OPT_mlong_double_128, SA); 3453 else if (Opts.LongDoubleSize == 64) 3454 GenerateArg(Args, OPT_mlong_double_64, SA); 3455 3456 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3457 3458 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3459 // '-fopenmp-targets='. 3460 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3461 GenerateArg(Args, OPT_fopenmp, SA); 3462 3463 if (Opts.OpenMP != 50) 3464 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3465 3466 if (!Opts.OpenMPUseTLS) 3467 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3468 3469 if (Opts.OpenMPIsDevice) 3470 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3471 3472 if (Opts.OpenMPIRBuilder) 3473 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3474 } 3475 3476 if (Opts.OpenMPSimd) { 3477 GenerateArg(Args, OPT_fopenmp_simd, SA); 3478 3479 if (Opts.OpenMP != 50) 3480 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3481 } 3482 3483 if (Opts.OpenMPTargetNewRuntime) 3484 GenerateArg(Args, OPT_fopenmp_target_new_runtime, SA); 3485 3486 if (Opts.OpenMPThreadSubscription) 3487 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3488 3489 if (Opts.OpenMPTeamSubscription) 3490 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3491 3492 if (Opts.OpenMPTargetDebug != 0) 3493 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3494 Twine(Opts.OpenMPTargetDebug), SA); 3495 3496 if (Opts.OpenMPCUDANumSMs != 0) 3497 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3498 Twine(Opts.OpenMPCUDANumSMs), SA); 3499 3500 if (Opts.OpenMPCUDABlocksPerSM != 0) 3501 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3502 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3503 3504 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3505 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3506 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3507 3508 if (!Opts.OMPTargetTriples.empty()) { 3509 std::string Targets; 3510 llvm::raw_string_ostream OS(Targets); 3511 llvm::interleave( 3512 Opts.OMPTargetTriples, OS, 3513 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3514 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3515 } 3516 3517 if (!Opts.OMPHostIRFile.empty()) 3518 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3519 3520 if (Opts.OpenMPCUDAMode) 3521 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3522 3523 if (Opts.OpenMPCUDAForceFullRuntime) 3524 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3525 3526 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3527 // generated from CodeGenOptions. 3528 3529 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3530 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3531 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3532 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3533 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3534 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3535 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3536 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3537 3538 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3539 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3540 3541 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3542 for (const std::string &F : Opts.NoSanitizeFiles) 3543 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3544 3545 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3546 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3547 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3548 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3549 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3550 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3551 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3552 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3553 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3554 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3555 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3556 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3557 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3558 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3559 3560 if (Opts.getSignReturnAddressScope() == 3561 LangOptions::SignReturnAddressScopeKind::All) 3562 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3563 else if (Opts.getSignReturnAddressScope() == 3564 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3565 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3566 3567 if (Opts.getSignReturnAddressKey() == 3568 LangOptions::SignReturnAddressKeyKind::BKey) 3569 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3570 3571 if (Opts.CXXABI) 3572 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3573 SA); 3574 3575 if (Opts.RelativeCXXABIVTables) 3576 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3577 else 3578 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3579 3580 for (const auto &MP : Opts.MacroPrefixMap) 3581 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3582 } 3583 3584 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3585 InputKind IK, const llvm::Triple &T, 3586 std::vector<std::string> &Includes, 3587 DiagnosticsEngine &Diags) { 3588 unsigned NumErrorsBefore = Diags.getNumErrors(); 3589 3590 if (IK.getFormat() == InputKind::Precompiled || 3591 IK.getLanguage() == Language::LLVM_IR) { 3592 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3593 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3594 // what the input type is. 3595 if (Args.hasArg(OPT_fobjc_arc)) 3596 Opts.ObjCAutoRefCount = 1; 3597 // PICLevel and PIELevel are needed during code generation and this should 3598 // be set regardless of the input type. 3599 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3600 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3601 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3602 Diags, Opts.Sanitize); 3603 3604 return Diags.getNumErrors() == NumErrorsBefore; 3605 } 3606 3607 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3608 // FIXME: Should we really be parsing this for an Language::Asm input? 3609 3610 // FIXME: Cleanup per-file based stuff. 3611 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3612 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3613 LangStd = LangStandard::getLangKind(A->getValue()); 3614 if (LangStd == LangStandard::lang_unspecified) { 3615 Diags.Report(diag::err_drv_invalid_value) 3616 << A->getAsString(Args) << A->getValue(); 3617 // Report supported standards with short description. 3618 for (unsigned KindValue = 0; 3619 KindValue != LangStandard::lang_unspecified; 3620 ++KindValue) { 3621 const LangStandard &Std = LangStandard::getLangStandardForKind( 3622 static_cast<LangStandard::Kind>(KindValue)); 3623 if (IsInputCompatibleWithStandard(IK, Std)) { 3624 auto Diag = Diags.Report(diag::note_drv_use_standard); 3625 Diag << Std.getName() << Std.getDescription(); 3626 unsigned NumAliases = 0; 3627 #define LANGSTANDARD(id, name, lang, desc, features) 3628 #define LANGSTANDARD_ALIAS(id, alias) \ 3629 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3630 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3631 #include "clang/Basic/LangStandards.def" 3632 Diag << NumAliases; 3633 #define LANGSTANDARD(id, name, lang, desc, features) 3634 #define LANGSTANDARD_ALIAS(id, alias) \ 3635 if (KindValue == LangStandard::lang_##id) Diag << alias; 3636 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3637 #include "clang/Basic/LangStandards.def" 3638 } 3639 } 3640 } else { 3641 // Valid standard, check to make sure language and standard are 3642 // compatible. 3643 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3644 if (!IsInputCompatibleWithStandard(IK, Std)) { 3645 Diags.Report(diag::err_drv_argument_not_allowed_with) 3646 << A->getAsString(Args) << GetInputKindName(IK); 3647 } 3648 } 3649 } 3650 3651 // -cl-std only applies for OpenCL language standards. 3652 // Override the -std option in this case. 3653 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3654 LangStandard::Kind OpenCLLangStd 3655 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3656 .Cases("cl", "CL", LangStandard::lang_opencl10) 3657 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3658 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3659 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3660 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3661 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3662 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3663 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3664 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3665 .Default(LangStandard::lang_unspecified); 3666 3667 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3668 Diags.Report(diag::err_drv_invalid_value) 3669 << A->getAsString(Args) << A->getValue(); 3670 } 3671 else 3672 LangStd = OpenCLLangStd; 3673 } 3674 3675 // These need to be parsed now. They are used to set OpenCL defaults. 3676 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3677 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3678 3679 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3680 3681 // The key paths of codegen options defined in Options.td start with 3682 // "LangOpts->". Let's provide the expected variable name and type. 3683 LangOptions *LangOpts = &Opts; 3684 3685 #define LANG_OPTION_WITH_MARSHALLING( \ 3686 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3687 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3688 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3689 MERGER, EXTRACTOR, TABLE_INDEX) \ 3690 PARSE_OPTION_WITH_MARSHALLING( \ 3691 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3692 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3693 #include "clang/Driver/Options.inc" 3694 #undef LANG_OPTION_WITH_MARSHALLING 3695 3696 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3697 StringRef Name = A->getValue(); 3698 if (Name == "full" || Name == "branch") { 3699 Opts.CFProtectionBranch = 1; 3700 } 3701 } 3702 3703 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3704 !Args.hasArg(OPT_sycl_std_EQ)) { 3705 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3706 // provide -sycl-std=, we want to default it to whatever the default SYCL 3707 // version is. I could not find a way to express this with the options 3708 // tablegen because we still want this value to be SYCL_None when the user 3709 // is not in device or host mode. 3710 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3711 } 3712 3713 if (Opts.ObjC) { 3714 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3715 StringRef value = arg->getValue(); 3716 if (Opts.ObjCRuntime.tryParse(value)) 3717 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3718 } 3719 3720 if (Args.hasArg(OPT_fobjc_gc_only)) 3721 Opts.setGC(LangOptions::GCOnly); 3722 else if (Args.hasArg(OPT_fobjc_gc)) 3723 Opts.setGC(LangOptions::HybridGC); 3724 else if (Args.hasArg(OPT_fobjc_arc)) { 3725 Opts.ObjCAutoRefCount = 1; 3726 if (!Opts.ObjCRuntime.allowsARC()) 3727 Diags.Report(diag::err_arc_unsupported_on_runtime); 3728 } 3729 3730 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3731 // whether the feature is actually enabled. This is predominantly 3732 // determined by -fobjc-runtime, but we allow it to be overridden 3733 // from the command line for testing purposes. 3734 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3735 Opts.ObjCWeakRuntime = 1; 3736 else 3737 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3738 3739 // ObjCWeak determines whether __weak is actually enabled. 3740 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3741 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3742 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3743 assert(!Opts.ObjCWeak); 3744 } else if (Opts.getGC() != LangOptions::NonGC) { 3745 Diags.Report(diag::err_objc_weak_with_gc); 3746 } else if (!Opts.ObjCWeakRuntime) { 3747 Diags.Report(diag::err_objc_weak_unsupported); 3748 } else { 3749 Opts.ObjCWeak = 1; 3750 } 3751 } else if (Opts.ObjCAutoRefCount) { 3752 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3753 } 3754 3755 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3756 Opts.ObjCSubscriptingLegacyRuntime = 3757 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3758 } 3759 3760 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3761 // Check that the version has 1 to 3 components and the minor and patch 3762 // versions fit in two decimal digits. 3763 VersionTuple GNUCVer; 3764 bool Invalid = GNUCVer.tryParse(A->getValue()); 3765 unsigned Major = GNUCVer.getMajor(); 3766 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3767 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3768 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3769 Diags.Report(diag::err_drv_invalid_value) 3770 << A->getAsString(Args) << A->getValue(); 3771 } 3772 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3773 } 3774 3775 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3776 // no -fvisibility=* option. 3777 // This is the reason why '-fvisibility' needs to be always generated: 3778 // its absence implies '-mignore-xcoff-visibility'. 3779 // 3780 // Suppose the original cc1 command line does contain '-fvisibility default': 3781 // '-mignore-xcoff-visibility' should not be implied. 3782 // * If '-fvisibility' is not generated (as most options with default values 3783 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3784 // the command line semantics. 3785 // * If '-fvisibility' is generated regardless of its presence and value, 3786 // '-mignore-xcoff-visibility' won't be implied and the command line 3787 // semantics are kept intact. 3788 // 3789 // When the original cc1 command line does **not** contain '-fvisibility', 3790 // '-mignore-xcoff-visibility' is implied. The generated command line will 3791 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3792 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3793 // produce the same arguments. 3794 3795 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3796 !Args.hasArg(OPT_fvisibility))) 3797 Opts.IgnoreXCOFFVisibility = 1; 3798 3799 if (Args.hasArg(OPT_ftrapv)) { 3800 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3801 // Set the handler, if one is specified. 3802 Opts.OverflowHandler = 3803 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3804 } 3805 else if (Args.hasArg(OPT_fwrapv)) 3806 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3807 3808 Opts.MSCompatibilityVersion = 0; 3809 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3810 VersionTuple VT; 3811 if (VT.tryParse(A->getValue())) 3812 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3813 << A->getValue(); 3814 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3815 VT.getMinor().getValueOr(0) * 100000 + 3816 VT.getSubminor().getValueOr(0); 3817 } 3818 3819 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3820 // is specified, or -std is set to a conforming mode. 3821 // Trigraphs are disabled by default in c++1z onwards. 3822 // For z/OS, trigraphs are enabled by default (without regard to the above). 3823 Opts.Trigraphs = 3824 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3825 Opts.Trigraphs = 3826 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3827 3828 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3829 && Opts.OpenCLVersion == 200); 3830 3831 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3832 Opts.SYCLIsDevice || 3833 Args.hasArg(OPT_fconvergent_functions); 3834 3835 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3836 if (!Opts.NoBuiltin) 3837 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3838 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3839 ? 128 3840 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3841 if (Opts.FastRelaxedMath) 3842 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3843 llvm::sort(Opts.ModuleFeatures); 3844 3845 // -mrtd option 3846 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3847 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3848 Diags.Report(diag::err_drv_argument_not_allowed_with) 3849 << A->getSpelling() << "-fdefault-calling-conv"; 3850 else { 3851 if (T.getArch() != llvm::Triple::x86) 3852 Diags.Report(diag::err_drv_argument_not_allowed_with) 3853 << A->getSpelling() << T.getTriple(); 3854 else 3855 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3856 } 3857 } 3858 3859 // Check if -fopenmp is specified and set default version to 5.0. 3860 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3861 // Check if -fopenmp-simd is specified. 3862 bool IsSimdSpecified = 3863 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3864 /*Default=*/false); 3865 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3866 Opts.OpenMPUseTLS = 3867 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3868 Opts.OpenMPIsDevice = 3869 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3870 Opts.OpenMPIRBuilder = 3871 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3872 bool IsTargetSpecified = 3873 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3874 Opts.OpenMPTargetNewRuntime = 3875 Opts.OpenMPIsDevice && 3876 Args.hasArg(options::OPT_fopenmp_target_new_runtime); 3877 3878 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3879 3880 if (Opts.OpenMP || Opts.OpenMPSimd) { 3881 if (int Version = getLastArgIntValue( 3882 Args, OPT_fopenmp_version_EQ, 3883 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3884 Opts.OpenMP = Version; 3885 // Provide diagnostic when a given target is not expected to be an OpenMP 3886 // device or host. 3887 if (!Opts.OpenMPIsDevice) { 3888 switch (T.getArch()) { 3889 default: 3890 break; 3891 // Add unsupported host targets here: 3892 case llvm::Triple::nvptx: 3893 case llvm::Triple::nvptx64: 3894 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3895 break; 3896 } 3897 } 3898 } 3899 3900 // Set the flag to prevent the implementation from emitting device exception 3901 // handling code for those requiring so. 3902 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3903 Opts.OpenCLCPlusPlus) { 3904 3905 Opts.Exceptions = 0; 3906 Opts.CXXExceptions = 0; 3907 } 3908 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3909 Opts.OpenMPCUDANumSMs = 3910 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3911 Opts.OpenMPCUDANumSMs, Diags); 3912 Opts.OpenMPCUDABlocksPerSM = 3913 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3914 Opts.OpenMPCUDABlocksPerSM, Diags); 3915 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3916 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3917 Opts.OpenMPCUDAReductionBufNum, Diags); 3918 } 3919 3920 // Set the value of the debugging flag used in the new offloading device RTL. 3921 // Set either by a specific value or to a default if not specified. 3922 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3923 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3924 if (Opts.OpenMPTargetNewRuntime) { 3925 Opts.OpenMPTargetDebug = getLastArgIntValue( 3926 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3927 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3928 Opts.OpenMPTargetDebug = 1; 3929 } else { 3930 Diags.Report(diag::err_drv_debug_no_new_runtime); 3931 } 3932 } 3933 3934 if (Opts.OpenMPIsDevice && Opts.OpenMPTargetNewRuntime) { 3935 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3936 Opts.OpenMPTeamSubscription = true; 3937 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3938 Opts.OpenMPThreadSubscription = true; 3939 } 3940 3941 // Get the OpenMP target triples if any. 3942 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3943 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3944 auto getArchPtrSize = [](const llvm::Triple &T) { 3945 if (T.isArch16Bit()) 3946 return Arch16Bit; 3947 if (T.isArch32Bit()) 3948 return Arch32Bit; 3949 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3950 return Arch64Bit; 3951 }; 3952 3953 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3954 llvm::Triple TT(A->getValue(i)); 3955 3956 if (TT.getArch() == llvm::Triple::UnknownArch || 3957 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3958 TT.getArch() == llvm::Triple::nvptx || 3959 TT.getArch() == llvm::Triple::nvptx64 || 3960 TT.getArch() == llvm::Triple::amdgcn || 3961 TT.getArch() == llvm::Triple::x86 || 3962 TT.getArch() == llvm::Triple::x86_64)) 3963 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3964 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3965 Diags.Report(diag::err_drv_incompatible_omp_arch) 3966 << A->getValue(i) << T.str(); 3967 else 3968 Opts.OMPTargetTriples.push_back(TT); 3969 } 3970 } 3971 3972 // Get OpenMP host file path if any and report if a non existent file is 3973 // found 3974 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3975 Opts.OMPHostIRFile = A->getValue(); 3976 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3977 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3978 << Opts.OMPHostIRFile; 3979 } 3980 3981 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3982 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3983 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3984 3985 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3986 Opts.OpenMPCUDAForceFullRuntime = 3987 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3988 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3989 3990 // FIXME: Eliminate this dependency. 3991 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3992 OptSize = getOptimizationLevelSize(Args); 3993 Opts.Optimize = Opt != 0; 3994 Opts.OptimizeSize = OptSize != 0; 3995 3996 // This is the __NO_INLINE__ define, which just depends on things like the 3997 // optimization level and -fno-inline, not actually whether the backend has 3998 // inlining enabled. 3999 Opts.NoInlineDefine = !Opts.Optimize; 4000 if (Arg *InlineArg = Args.getLastArg( 4001 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4002 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4003 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4004 Opts.NoInlineDefine = true; 4005 4006 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4007 StringRef Val = A->getValue(); 4008 if (Val == "fast") 4009 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4010 else if (Val == "on") 4011 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4012 else if (Val == "off") 4013 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4014 else if (Val == "fast-honor-pragmas") 4015 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4016 else 4017 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4018 } 4019 4020 // Parse -fsanitize= arguments. 4021 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4022 Diags, Opts.Sanitize); 4023 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4024 std::vector<std::string> systemIgnorelists = 4025 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4026 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4027 systemIgnorelists.begin(), 4028 systemIgnorelists.end()); 4029 4030 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4031 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4032 4033 StringRef Ver = A->getValue(); 4034 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4035 unsigned Major, Minor = 0; 4036 4037 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4038 // y or y.0 (4 <= y <= current version). 4039 if (!VerParts.first.startswith("0") && 4040 !VerParts.first.getAsInteger(10, Major) && 4041 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4042 (Major == 3 ? VerParts.second.size() == 1 && 4043 !VerParts.second.getAsInteger(10, Minor) 4044 : VerParts.first.size() == Ver.size() || 4045 VerParts.second == "0")) { 4046 // Got a valid version number. 4047 if (Major == 3 && Minor <= 8) 4048 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4049 else if (Major <= 4) 4050 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4051 else if (Major <= 6) 4052 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4053 else if (Major <= 7) 4054 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4055 else if (Major <= 9) 4056 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4057 else if (Major <= 11) 4058 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4059 else if (Major <= 12) 4060 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4061 } else if (Ver != "latest") { 4062 Diags.Report(diag::err_drv_invalid_value) 4063 << A->getAsString(Args) << A->getValue(); 4064 } 4065 } 4066 4067 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4068 StringRef SignScope = A->getValue(); 4069 4070 if (SignScope.equals_insensitive("none")) 4071 Opts.setSignReturnAddressScope( 4072 LangOptions::SignReturnAddressScopeKind::None); 4073 else if (SignScope.equals_insensitive("all")) 4074 Opts.setSignReturnAddressScope( 4075 LangOptions::SignReturnAddressScopeKind::All); 4076 else if (SignScope.equals_insensitive("non-leaf")) 4077 Opts.setSignReturnAddressScope( 4078 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4079 else 4080 Diags.Report(diag::err_drv_invalid_value) 4081 << A->getAsString(Args) << SignScope; 4082 4083 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4084 StringRef SignKey = A->getValue(); 4085 if (!SignScope.empty() && !SignKey.empty()) { 4086 if (SignKey.equals_insensitive("a_key")) 4087 Opts.setSignReturnAddressKey( 4088 LangOptions::SignReturnAddressKeyKind::AKey); 4089 else if (SignKey.equals_insensitive("b_key")) 4090 Opts.setSignReturnAddressKey( 4091 LangOptions::SignReturnAddressKeyKind::BKey); 4092 else 4093 Diags.Report(diag::err_drv_invalid_value) 4094 << A->getAsString(Args) << SignKey; 4095 } 4096 } 4097 } 4098 4099 // The value can be empty, which indicates the system default should be used. 4100 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4101 if (!CXXABI.empty()) { 4102 if (!TargetCXXABI::isABI(CXXABI)) { 4103 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4104 } else { 4105 auto Kind = TargetCXXABI::getKind(CXXABI); 4106 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4107 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4108 else 4109 Opts.CXXABI = Kind; 4110 } 4111 } 4112 4113 Opts.RelativeCXXABIVTables = 4114 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4115 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4116 TargetCXXABI::usesRelativeVTables(T)); 4117 4118 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4119 auto Split = StringRef(A).split('='); 4120 Opts.MacroPrefixMap.insert( 4121 {std::string(Split.first), std::string(Split.second)}); 4122 } 4123 4124 // Error if -mvscale-min is unbounded. 4125 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4126 unsigned VScaleMin; 4127 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4128 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4129 } 4130 4131 return Diags.getNumErrors() == NumErrorsBefore; 4132 } 4133 4134 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4135 switch (Action) { 4136 case frontend::ASTDeclList: 4137 case frontend::ASTDump: 4138 case frontend::ASTPrint: 4139 case frontend::ASTView: 4140 case frontend::EmitAssembly: 4141 case frontend::EmitBC: 4142 case frontend::EmitHTML: 4143 case frontend::EmitLLVM: 4144 case frontend::EmitLLVMOnly: 4145 case frontend::EmitCodeGenOnly: 4146 case frontend::EmitObj: 4147 case frontend::FixIt: 4148 case frontend::GenerateModule: 4149 case frontend::GenerateModuleInterface: 4150 case frontend::GenerateHeaderModule: 4151 case frontend::GeneratePCH: 4152 case frontend::GenerateInterfaceStubs: 4153 case frontend::ParseSyntaxOnly: 4154 case frontend::ModuleFileInfo: 4155 case frontend::VerifyPCH: 4156 case frontend::PluginAction: 4157 case frontend::RewriteObjC: 4158 case frontend::RewriteTest: 4159 case frontend::RunAnalysis: 4160 case frontend::TemplightDump: 4161 case frontend::MigrateSource: 4162 return false; 4163 4164 case frontend::DumpCompilerOptions: 4165 case frontend::DumpRawTokens: 4166 case frontend::DumpTokens: 4167 case frontend::InitOnly: 4168 case frontend::PrintPreamble: 4169 case frontend::PrintPreprocessedInput: 4170 case frontend::RewriteMacros: 4171 case frontend::RunPreprocessorOnly: 4172 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4173 return true; 4174 } 4175 llvm_unreachable("invalid frontend action"); 4176 } 4177 4178 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4179 SmallVectorImpl<const char *> &Args, 4180 CompilerInvocation::StringAllocator SA, 4181 const LangOptions &LangOpts, 4182 const FrontendOptions &FrontendOpts, 4183 const CodeGenOptions &CodeGenOpts) { 4184 PreprocessorOptions *PreprocessorOpts = &Opts; 4185 4186 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4187 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4188 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4189 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4190 MERGER, EXTRACTOR, TABLE_INDEX) \ 4191 GENERATE_OPTION_WITH_MARSHALLING( \ 4192 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4193 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4194 #include "clang/Driver/Options.inc" 4195 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4196 4197 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4198 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4199 4200 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4201 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4202 4203 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4204 GenerateArg(Args, OPT_preamble_bytes_EQ, 4205 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4206 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4207 SA); 4208 4209 for (const auto &M : Opts.Macros) { 4210 // Don't generate __CET__ macro definitions. They are implied by the 4211 // -fcf-protection option that is generated elsewhere. 4212 if (M.first == "__CET__=1" && !M.second && 4213 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4214 continue; 4215 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4216 !CodeGenOpts.CFProtectionBranch) 4217 continue; 4218 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4219 CodeGenOpts.CFProtectionBranch) 4220 continue; 4221 4222 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4223 } 4224 4225 for (const auto &I : Opts.Includes) { 4226 // Don't generate OpenCL includes. They are implied by other flags that are 4227 // generated elsewhere. 4228 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4229 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4230 I == "opencl-c.h")) 4231 continue; 4232 4233 GenerateArg(Args, OPT_include, I, SA); 4234 } 4235 4236 for (const auto &CI : Opts.ChainedIncludes) 4237 GenerateArg(Args, OPT_chain_include, CI, SA); 4238 4239 for (const auto &RF : Opts.RemappedFiles) 4240 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4241 4242 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4243 // generated elsewhere. 4244 } 4245 4246 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4247 DiagnosticsEngine &Diags, 4248 frontend::ActionKind Action, 4249 const FrontendOptions &FrontendOpts) { 4250 unsigned NumErrorsBefore = Diags.getNumErrors(); 4251 4252 PreprocessorOptions *PreprocessorOpts = &Opts; 4253 4254 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4255 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4256 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4257 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4258 MERGER, EXTRACTOR, TABLE_INDEX) \ 4259 PARSE_OPTION_WITH_MARSHALLING( \ 4260 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4261 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4262 #include "clang/Driver/Options.inc" 4263 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4264 4265 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4266 Args.hasArg(OPT_pch_through_hdrstop_use); 4267 4268 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4269 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4270 4271 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4272 StringRef Value(A->getValue()); 4273 size_t Comma = Value.find(','); 4274 unsigned Bytes = 0; 4275 unsigned EndOfLine = 0; 4276 4277 if (Comma == StringRef::npos || 4278 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4279 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4280 Diags.Report(diag::err_drv_preamble_format); 4281 else { 4282 Opts.PrecompiledPreambleBytes.first = Bytes; 4283 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4284 } 4285 } 4286 4287 // Add the __CET__ macro if a CFProtection option is set. 4288 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4289 StringRef Name = A->getValue(); 4290 if (Name == "branch") 4291 Opts.addMacroDef("__CET__=1"); 4292 else if (Name == "return") 4293 Opts.addMacroDef("__CET__=2"); 4294 else if (Name == "full") 4295 Opts.addMacroDef("__CET__=3"); 4296 } 4297 4298 // Add macros from the command line. 4299 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4300 if (A->getOption().matches(OPT_D)) 4301 Opts.addMacroDef(A->getValue()); 4302 else 4303 Opts.addMacroUndef(A->getValue()); 4304 } 4305 4306 // Add the ordered list of -includes. 4307 for (const auto *A : Args.filtered(OPT_include)) 4308 Opts.Includes.emplace_back(A->getValue()); 4309 4310 for (const auto *A : Args.filtered(OPT_chain_include)) 4311 Opts.ChainedIncludes.emplace_back(A->getValue()); 4312 4313 for (const auto *A : Args.filtered(OPT_remap_file)) { 4314 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4315 4316 if (Split.second.empty()) { 4317 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4318 continue; 4319 } 4320 4321 Opts.addRemappedFile(Split.first, Split.second); 4322 } 4323 4324 // Always avoid lexing editor placeholders when we're just running the 4325 // preprocessor as we never want to emit the 4326 // "editor placeholder in source file" error in PP only mode. 4327 if (isStrictlyPreprocessorAction(Action)) 4328 Opts.LexEditorPlaceholders = false; 4329 4330 return Diags.getNumErrors() == NumErrorsBefore; 4331 } 4332 4333 static void GeneratePreprocessorOutputArgs( 4334 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4335 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4336 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4337 4338 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4339 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4340 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4341 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4342 MERGER, EXTRACTOR, TABLE_INDEX) \ 4343 GENERATE_OPTION_WITH_MARSHALLING( \ 4344 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4345 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4346 #include "clang/Driver/Options.inc" 4347 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4348 4349 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4350 if (Generate_dM) 4351 GenerateArg(Args, OPT_dM, SA); 4352 if (!Generate_dM && Opts.ShowMacros) 4353 GenerateArg(Args, OPT_dD, SA); 4354 } 4355 4356 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4357 ArgList &Args, DiagnosticsEngine &Diags, 4358 frontend::ActionKind Action) { 4359 unsigned NumErrorsBefore = Diags.getNumErrors(); 4360 4361 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4362 4363 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4364 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4365 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4366 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4367 MERGER, EXTRACTOR, TABLE_INDEX) \ 4368 PARSE_OPTION_WITH_MARSHALLING( \ 4369 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4370 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4371 #include "clang/Driver/Options.inc" 4372 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4373 4374 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4375 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4376 4377 return Diags.getNumErrors() == NumErrorsBefore; 4378 } 4379 4380 static void GenerateTargetArgs(const TargetOptions &Opts, 4381 SmallVectorImpl<const char *> &Args, 4382 CompilerInvocation::StringAllocator SA) { 4383 const TargetOptions *TargetOpts = &Opts; 4384 #define TARGET_OPTION_WITH_MARSHALLING( \ 4385 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4386 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4387 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4388 MERGER, EXTRACTOR, TABLE_INDEX) \ 4389 GENERATE_OPTION_WITH_MARSHALLING( \ 4390 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4391 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4392 #include "clang/Driver/Options.inc" 4393 #undef TARGET_OPTION_WITH_MARSHALLING 4394 4395 if (!Opts.SDKVersion.empty()) 4396 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4397 SA); 4398 } 4399 4400 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4401 DiagnosticsEngine &Diags) { 4402 unsigned NumErrorsBefore = Diags.getNumErrors(); 4403 4404 TargetOptions *TargetOpts = &Opts; 4405 4406 #define TARGET_OPTION_WITH_MARSHALLING( \ 4407 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4408 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4409 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4410 MERGER, EXTRACTOR, TABLE_INDEX) \ 4411 PARSE_OPTION_WITH_MARSHALLING( \ 4412 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4413 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4414 #include "clang/Driver/Options.inc" 4415 #undef TARGET_OPTION_WITH_MARSHALLING 4416 4417 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4418 llvm::VersionTuple Version; 4419 if (Version.tryParse(A->getValue())) 4420 Diags.Report(diag::err_drv_invalid_value) 4421 << A->getAsString(Args) << A->getValue(); 4422 else 4423 Opts.SDKVersion = Version; 4424 } 4425 4426 return Diags.getNumErrors() == NumErrorsBefore; 4427 } 4428 4429 bool CompilerInvocation::CreateFromArgsImpl( 4430 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4431 DiagnosticsEngine &Diags, const char *Argv0) { 4432 unsigned NumErrorsBefore = Diags.getNumErrors(); 4433 4434 // Parse the arguments. 4435 const OptTable &Opts = getDriverOptTable(); 4436 const unsigned IncludedFlagsBitmask = options::CC1Option; 4437 unsigned MissingArgIndex, MissingArgCount; 4438 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4439 MissingArgCount, IncludedFlagsBitmask); 4440 LangOptions &LangOpts = *Res.getLangOpts(); 4441 4442 // Check for missing argument error. 4443 if (MissingArgCount) 4444 Diags.Report(diag::err_drv_missing_argument) 4445 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4446 4447 // Issue errors on unknown arguments. 4448 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4449 auto ArgString = A->getAsString(Args); 4450 std::string Nearest; 4451 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4452 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4453 else 4454 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4455 << ArgString << Nearest; 4456 } 4457 4458 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4459 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4460 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4461 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4462 /*DefaultDiagColor=*/false); 4463 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4464 // FIXME: We shouldn't have to pass the DashX option around here 4465 InputKind DashX = Res.getFrontendOpts().DashX; 4466 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4467 llvm::Triple T(Res.getTargetOpts().Triple); 4468 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4469 Res.getFileSystemOpts().WorkingDir); 4470 4471 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4472 Diags); 4473 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4474 LangOpts.ObjCExceptions = 1; 4475 4476 if (LangOpts.CUDA) { 4477 // During CUDA device-side compilation, the aux triple is the 4478 // triple used for host compilation. 4479 if (LangOpts.CUDAIsDevice) 4480 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4481 } 4482 4483 // Set the triple of the host for OpenMP device compile. 4484 if (LangOpts.OpenMPIsDevice) 4485 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4486 4487 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4488 Res.getFrontendOpts().OutputFile, LangOpts); 4489 4490 // FIXME: Override value name discarding when asan or msan is used because the 4491 // backend passes depend on the name of the alloca in order to print out 4492 // names. 4493 Res.getCodeGenOpts().DiscardValueNames &= 4494 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4495 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4496 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4497 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4498 4499 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4500 Res.getFrontendOpts().ProgramAction, 4501 Res.getFrontendOpts()); 4502 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4503 Res.getFrontendOpts().ProgramAction); 4504 4505 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4506 Res.getFrontendOpts().ProgramAction, 4507 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4508 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4509 Res.getDependencyOutputOpts().Targets.empty()) 4510 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4511 4512 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4513 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4514 !Res.getLangOpts()->Sanitize.empty()) { 4515 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4516 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4517 } 4518 4519 // Store the command-line for using in the CodeView backend. 4520 Res.getCodeGenOpts().Argv0 = Argv0; 4521 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4522 4523 FixupInvocation(Res, Diags, Args, DashX); 4524 4525 return Diags.getNumErrors() == NumErrorsBefore; 4526 } 4527 4528 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4529 ArrayRef<const char *> CommandLineArgs, 4530 DiagnosticsEngine &Diags, 4531 const char *Argv0) { 4532 CompilerInvocation DummyInvocation; 4533 4534 return RoundTrip( 4535 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4536 DiagnosticsEngine &Diags, const char *Argv0) { 4537 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4538 }, 4539 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4540 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4541 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4542 } 4543 4544 std::string CompilerInvocation::getModuleHash() const { 4545 // FIXME: Consider using SHA1 instead of MD5. 4546 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4547 4548 // Note: For QoI reasons, the things we use as a hash here should all be 4549 // dumped via the -module-info flag. 4550 4551 // Start the signature with the compiler version. 4552 HBuilder.add(getClangFullRepositoryVersion()); 4553 4554 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4555 // and getClangFullRepositoryVersion() doesn't include git revision. 4556 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4557 4558 // Extend the signature with the language options 4559 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4560 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4561 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4562 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4563 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4564 #include "clang/Basic/LangOptions.def" 4565 4566 HBuilder.addRange(LangOpts->ModuleFeatures); 4567 4568 HBuilder.add(LangOpts->ObjCRuntime); 4569 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4570 4571 // Extend the signature with the target options. 4572 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4573 TargetOpts->ABI); 4574 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4575 4576 // Extend the signature with preprocessor options. 4577 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4578 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4579 4580 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4581 for (const auto &Macro : getPreprocessorOpts().Macros) { 4582 // If we're supposed to ignore this macro for the purposes of modules, 4583 // don't put it into the hash. 4584 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4585 // Check whether we're ignoring this macro. 4586 StringRef MacroDef = Macro.first; 4587 if (hsOpts.ModulesIgnoreMacros.count( 4588 llvm::CachedHashString(MacroDef.split('=').first))) 4589 continue; 4590 } 4591 4592 HBuilder.add(Macro); 4593 } 4594 4595 // Extend the signature with the sysroot and other header search options. 4596 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4597 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4598 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4599 hsOpts.ModulesValidateDiagnosticOptions); 4600 HBuilder.add(hsOpts.ResourceDir); 4601 4602 if (hsOpts.ModulesStrictContextHash) { 4603 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4604 HBuilder.addRange(hsOpts.UserEntries); 4605 4606 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4607 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4608 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4609 HBuilder.add(diagOpts.get##Name()); 4610 #include "clang/Basic/DiagnosticOptions.def" 4611 #undef DIAGOPT 4612 #undef ENUM_DIAGOPT 4613 } 4614 4615 // Extend the signature with the user build path. 4616 HBuilder.add(hsOpts.ModuleUserBuildPath); 4617 4618 // Extend the signature with the module file extensions. 4619 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4620 ext->hashExtension(HBuilder); 4621 4622 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4623 // affects the debug info in the PCM. 4624 if (getCodeGenOpts().DebugTypeExtRefs) 4625 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4626 4627 // Extend the signature with the enabled sanitizers, if at least one is 4628 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4629 SanitizerSet SanHash = LangOpts->Sanitize; 4630 SanHash.clear(getPPTransparentSanitizers()); 4631 if (!SanHash.empty()) 4632 HBuilder.add(SanHash.Mask); 4633 4634 llvm::MD5::MD5Result Result; 4635 HBuilder.getHasher().final(Result); 4636 uint64_t Hash = Result.high() ^ Result.low(); 4637 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4638 } 4639 4640 void CompilerInvocation::generateCC1CommandLine( 4641 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4642 llvm::Triple T(TargetOpts->Triple); 4643 4644 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4645 GenerateMigratorArgs(MigratorOpts, Args, SA); 4646 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4647 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4648 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4649 GenerateTargetArgs(*TargetOpts, Args, SA); 4650 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4651 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4652 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4653 &*LangOpts); 4654 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4655 CodeGenOpts); 4656 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4657 FrontendOpts.ProgramAction); 4658 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4659 } 4660 4661 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4662 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4663 DiagnosticsEngine &Diags) { 4664 return createVFSFromCompilerInvocation(CI, Diags, 4665 llvm::vfs::getRealFileSystem()); 4666 } 4667 4668 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4669 clang::createVFSFromCompilerInvocation( 4670 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4671 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4672 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4673 return BaseFS; 4674 4675 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4676 // earlier vfs files are on the bottom 4677 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4678 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4679 Result->getBufferForFile(File); 4680 if (!Buffer) { 4681 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4682 continue; 4683 } 4684 4685 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4686 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4687 /*DiagContext*/ nullptr, Result); 4688 if (!FS) { 4689 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4690 continue; 4691 } 4692 4693 Result = FS; 4694 } 4695 return Result; 4696 } 4697