1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/HashBuilder.h" 82 #include "llvm/Support/Host.h" 83 #include "llvm/Support/MathExtras.h" 84 #include "llvm/Support/MemoryBuffer.h" 85 #include "llvm/Support/Path.h" 86 #include "llvm/Support/Process.h" 87 #include "llvm/Support/Regex.h" 88 #include "llvm/Support/VersionTuple.h" 89 #include "llvm/Support/VirtualFileSystem.h" 90 #include "llvm/Support/raw_ostream.h" 91 #include "llvm/Target/TargetOptions.h" 92 #include <algorithm> 93 #include <atomic> 94 #include <cassert> 95 #include <cstddef> 96 #include <cstring> 97 #include <fstream> 98 #include <memory> 99 #include <string> 100 #include <tuple> 101 #include <type_traits> 102 #include <utility> 103 #include <vector> 104 105 using namespace clang; 106 using namespace driver; 107 using namespace options; 108 using namespace llvm::opt; 109 110 //===----------------------------------------------------------------------===// 111 // Initialization. 112 //===----------------------------------------------------------------------===// 113 114 CompilerInvocationRefBase::CompilerInvocationRefBase() 115 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 116 DiagnosticOpts(new DiagnosticOptions()), 117 HeaderSearchOpts(new HeaderSearchOptions()), 118 PreprocessorOpts(new PreprocessorOptions()), 119 AnalyzerOpts(new AnalyzerOptions()) {} 120 121 CompilerInvocationRefBase::CompilerInvocationRefBase( 122 const CompilerInvocationRefBase &X) 123 : LangOpts(new LangOptions(*X.getLangOpts())), 124 TargetOpts(new TargetOptions(X.getTargetOpts())), 125 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 126 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 127 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 128 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 129 130 CompilerInvocationRefBase::CompilerInvocationRefBase( 131 CompilerInvocationRefBase &&X) = default; 132 133 CompilerInvocationRefBase & 134 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 135 LangOpts.swap(X.LangOpts); 136 TargetOpts.swap(X.TargetOpts); 137 DiagnosticOpts.swap(X.DiagnosticOpts); 138 HeaderSearchOpts.swap(X.HeaderSearchOpts); 139 PreprocessorOpts.swap(X.PreprocessorOpts); 140 AnalyzerOpts.swap(X.AnalyzerOpts); 141 return *this; 142 } 143 144 CompilerInvocationRefBase & 145 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 146 147 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 148 149 //===----------------------------------------------------------------------===// 150 // Normalizers 151 //===----------------------------------------------------------------------===// 152 153 #define SIMPLE_ENUM_VALUE_TABLE 154 #include "clang/Driver/Options.inc" 155 #undef SIMPLE_ENUM_VALUE_TABLE 156 157 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 158 unsigned TableIndex, 159 const ArgList &Args, 160 DiagnosticsEngine &Diags) { 161 if (Args.hasArg(Opt)) 162 return true; 163 return None; 164 } 165 166 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 167 const ArgList &Args, 168 DiagnosticsEngine &) { 169 if (Args.hasArg(Opt)) 170 return false; 171 return None; 172 } 173 174 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 175 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 176 /// unnecessary template instantiations and just ignore it with a variadic 177 /// argument. 178 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 179 const char *Spelling, 180 CompilerInvocation::StringAllocator, 181 Option::OptionClass, unsigned, /*T*/...) { 182 Args.push_back(Spelling); 183 } 184 185 template <typename T> static constexpr bool is_uint64_t_convertible() { 186 return !std::is_same<T, uint64_t>::value && 187 llvm::is_integral_or_enum<T>::value; 188 } 189 190 template <typename T, 191 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 192 static auto makeFlagToValueNormalizer(T Value) { 193 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 194 DiagnosticsEngine &) -> Optional<T> { 195 if (Args.hasArg(Opt)) 196 return Value; 197 return None; 198 }; 199 } 200 201 template <typename T, 202 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 203 static auto makeFlagToValueNormalizer(T Value) { 204 return makeFlagToValueNormalizer(uint64_t(Value)); 205 } 206 207 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 208 OptSpecifier OtherOpt) { 209 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 210 const ArgList &Args, 211 DiagnosticsEngine &) -> Optional<bool> { 212 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 213 return A->getOption().matches(Opt) ? Value : OtherValue; 214 } 215 return None; 216 }; 217 } 218 219 static auto makeBooleanOptionDenormalizer(bool Value) { 220 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 221 CompilerInvocation::StringAllocator, Option::OptionClass, 222 unsigned, bool KeyPath) { 223 if (KeyPath == Value) 224 Args.push_back(Spelling); 225 }; 226 } 227 228 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 229 const char *Spelling, 230 CompilerInvocation::StringAllocator SA, 231 Option::OptionClass OptClass, unsigned, 232 const Twine &Value) { 233 switch (OptClass) { 234 case Option::SeparateClass: 235 case Option::JoinedOrSeparateClass: 236 case Option::JoinedAndSeparateClass: 237 Args.push_back(Spelling); 238 Args.push_back(SA(Value)); 239 break; 240 case Option::JoinedClass: 241 case Option::CommaJoinedClass: 242 Args.push_back(SA(Twine(Spelling) + Value)); 243 break; 244 default: 245 llvm_unreachable("Cannot denormalize an option with option class " 246 "incompatible with string denormalization."); 247 } 248 } 249 250 template <typename T> 251 static void 252 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 253 CompilerInvocation::StringAllocator SA, 254 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 255 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 256 } 257 258 static Optional<SimpleEnumValue> 259 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 260 for (int I = 0, E = Table.Size; I != E; ++I) 261 if (Name == Table.Table[I].Name) 262 return Table.Table[I]; 263 264 return None; 265 } 266 267 static Optional<SimpleEnumValue> 268 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 269 for (int I = 0, E = Table.Size; I != E; ++I) 270 if (Value == Table.Table[I].Value) 271 return Table.Table[I]; 272 273 return None; 274 } 275 276 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 277 unsigned TableIndex, 278 const ArgList &Args, 279 DiagnosticsEngine &Diags) { 280 assert(TableIndex < SimpleEnumValueTablesSize); 281 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 282 283 auto *Arg = Args.getLastArg(Opt); 284 if (!Arg) 285 return None; 286 287 StringRef ArgValue = Arg->getValue(); 288 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 289 return MaybeEnumVal->Value; 290 291 Diags.Report(diag::err_drv_invalid_value) 292 << Arg->getAsString(Args) << ArgValue; 293 return None; 294 } 295 296 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 297 const char *Spelling, 298 CompilerInvocation::StringAllocator SA, 299 Option::OptionClass OptClass, 300 unsigned TableIndex, unsigned Value) { 301 assert(TableIndex < SimpleEnumValueTablesSize); 302 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 303 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 304 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 305 MaybeEnumVal->Name); 306 } else { 307 llvm_unreachable("The simple enum value was not correctly defined in " 308 "the tablegen option description"); 309 } 310 } 311 312 template <typename T> 313 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 314 const char *Spelling, 315 CompilerInvocation::StringAllocator SA, 316 Option::OptionClass OptClass, 317 unsigned TableIndex, T Value) { 318 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 319 static_cast<unsigned>(Value)); 320 } 321 322 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 323 const ArgList &Args, 324 DiagnosticsEngine &Diags) { 325 auto *Arg = Args.getLastArg(Opt); 326 if (!Arg) 327 return None; 328 return std::string(Arg->getValue()); 329 } 330 331 template <typename IntTy> 332 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 333 const ArgList &Args, 334 DiagnosticsEngine &Diags) { 335 auto *Arg = Args.getLastArg(Opt); 336 if (!Arg) 337 return None; 338 IntTy Res; 339 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 340 Diags.Report(diag::err_drv_invalid_int_value) 341 << Arg->getAsString(Args) << Arg->getValue(); 342 return None; 343 } 344 return Res; 345 } 346 347 static Optional<std::vector<std::string>> 348 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 349 DiagnosticsEngine &) { 350 return Args.getAllArgValues(Opt); 351 } 352 353 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 354 const char *Spelling, 355 CompilerInvocation::StringAllocator SA, 356 Option::OptionClass OptClass, 357 unsigned TableIndex, 358 const std::vector<std::string> &Values) { 359 switch (OptClass) { 360 case Option::CommaJoinedClass: { 361 std::string CommaJoinedValue; 362 if (!Values.empty()) { 363 CommaJoinedValue.append(Values.front()); 364 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 365 CommaJoinedValue.append(","); 366 CommaJoinedValue.append(Value); 367 } 368 } 369 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 370 TableIndex, CommaJoinedValue); 371 break; 372 } 373 case Option::JoinedClass: 374 case Option::SeparateClass: 375 case Option::JoinedOrSeparateClass: 376 for (const std::string &Value : Values) 377 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 378 break; 379 default: 380 llvm_unreachable("Cannot denormalize an option with option class " 381 "incompatible with string vector denormalization."); 382 } 383 } 384 385 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 386 const ArgList &Args, 387 DiagnosticsEngine &Diags) { 388 auto *Arg = Args.getLastArg(Opt); 389 if (!Arg) 390 return None; 391 return llvm::Triple::normalize(Arg->getValue()); 392 } 393 394 template <typename T, typename U> 395 static T mergeForwardValue(T KeyPath, U Value) { 396 return static_cast<T>(Value); 397 } 398 399 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 400 return KeyPath | Value; 401 } 402 403 template <typename T> static T extractForwardValue(T KeyPath) { 404 return KeyPath; 405 } 406 407 template <typename T, typename U, U Value> 408 static T extractMaskValue(T KeyPath) { 409 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 410 } 411 412 #define PARSE_OPTION_WITH_MARSHALLING( \ 413 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 414 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 415 if ((FLAGS)&options::CC1Option) { \ 416 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 417 if (IMPLIED_CHECK) \ 418 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 419 if (SHOULD_PARSE) \ 420 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 421 KEYPATH = \ 422 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 423 } 424 425 // Capture the extracted value as a lambda argument to avoid potential issues 426 // with lifetime extension of the reference. 427 #define GENERATE_OPTION_WITH_MARSHALLING( \ 428 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 429 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 430 TABLE_INDEX) \ 431 if ((FLAGS)&options::CC1Option) { \ 432 [&](const auto &Extracted) { \ 433 if (ALWAYS_EMIT || \ 434 (Extracted != \ 435 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 436 : (DEFAULT_VALUE)))) \ 437 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 438 TABLE_INDEX, Extracted); \ 439 }(EXTRACTOR(KEYPATH)); \ 440 } 441 442 static StringRef GetInputKindName(InputKind IK); 443 444 static bool FixupInvocation(CompilerInvocation &Invocation, 445 DiagnosticsEngine &Diags, const ArgList &Args, 446 InputKind IK) { 447 unsigned NumErrorsBefore = Diags.getNumErrors(); 448 449 LangOptions &LangOpts = *Invocation.getLangOpts(); 450 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 451 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 452 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 453 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 454 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 455 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 456 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 457 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 458 if (FrontendOpts.ShowStats) 459 CodeGenOpts.ClearASTBeforeBackend = false; 460 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 461 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 462 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 463 LangOpts.CurrentModule = LangOpts.ModuleName; 464 465 llvm::Triple T(TargetOpts.Triple); 466 llvm::Triple::ArchType Arch = T.getArch(); 467 468 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 469 470 if (LangOpts.getExceptionHandling() != 471 LangOptions::ExceptionHandlingKind::None && 472 T.isWindowsMSVCEnvironment()) 473 Diags.Report(diag::err_fe_invalid_exception_model) 474 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 475 476 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 477 Diags.Report(diag::warn_c_kext); 478 479 if (Args.hasArg(OPT_fconcepts_ts)) 480 Diags.Report(diag::warn_fe_concepts_ts_flag); 481 482 if (LangOpts.NewAlignOverride && 483 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 484 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 485 Diags.Report(diag::err_fe_invalid_alignment) 486 << A->getAsString(Args) << A->getValue(); 487 LangOpts.NewAlignOverride = 0; 488 } 489 490 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 491 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 492 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 493 << "-fsycl-is-host"; 494 495 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 496 Diags.Report(diag::err_drv_argument_not_allowed_with) 497 << "-fgnu89-inline" << GetInputKindName(IK); 498 499 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 500 Diags.Report(diag::warn_ignored_hip_only_option) 501 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 502 503 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 504 Diags.Report(diag::warn_ignored_hip_only_option) 505 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 506 507 // When these options are used, the compiler is allowed to apply 508 // optimizations that may affect the final result. For example 509 // (x+y)+z is transformed to x+(y+z) but may not give the same 510 // final result; it's not value safe. 511 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 512 // or NaN. Final result may then differ. An error is issued when the eval 513 // method is set with one of these options. 514 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 515 if (LangOpts.ApproxFunc) 516 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 517 if (LangOpts.AllowFPReassoc) 518 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 519 if (LangOpts.AllowRecip) 520 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 521 } 522 523 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 524 // This option should be deprecated for CL > 1.0 because 525 // this option was added for compatibility with OpenCL 1.0. 526 if (Args.getLastArg(OPT_cl_strict_aliasing) && 527 (LangOpts.getOpenCLCompatibleVersion() > 100)) 528 Diags.Report(diag::warn_option_invalid_ocl_version) 529 << LangOpts.getOpenCLVersionString() 530 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 531 532 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 533 auto DefaultCC = LangOpts.getDefaultCallingConv(); 534 535 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 536 DefaultCC == LangOptions::DCC_StdCall) && 537 Arch != llvm::Triple::x86; 538 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 539 DefaultCC == LangOptions::DCC_RegCall) && 540 !T.isX86(); 541 if (emitError) 542 Diags.Report(diag::err_drv_argument_not_allowed_with) 543 << A->getSpelling() << T.getTriple(); 544 } 545 546 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 547 Diags.Report(diag::err_drv_argument_only_allowed_with) 548 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 549 << "-fno-legacy-pass-manager"; 550 551 return Diags.getNumErrors() == NumErrorsBefore; 552 } 553 554 //===----------------------------------------------------------------------===// 555 // Deserialization (from args) 556 //===----------------------------------------------------------------------===// 557 558 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 559 DiagnosticsEngine &Diags) { 560 unsigned DefaultOpt = llvm::CodeGenOpt::None; 561 if ((IK.getLanguage() == Language::OpenCL || 562 IK.getLanguage() == Language::OpenCLCXX) && 563 !Args.hasArg(OPT_cl_opt_disable)) 564 DefaultOpt = llvm::CodeGenOpt::Default; 565 566 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 567 if (A->getOption().matches(options::OPT_O0)) 568 return llvm::CodeGenOpt::None; 569 570 if (A->getOption().matches(options::OPT_Ofast)) 571 return llvm::CodeGenOpt::Aggressive; 572 573 assert(A->getOption().matches(options::OPT_O)); 574 575 StringRef S(A->getValue()); 576 if (S == "s" || S == "z") 577 return llvm::CodeGenOpt::Default; 578 579 if (S == "g") 580 return llvm::CodeGenOpt::Less; 581 582 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 583 } 584 585 return DefaultOpt; 586 } 587 588 static unsigned getOptimizationLevelSize(ArgList &Args) { 589 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 590 if (A->getOption().matches(options::OPT_O)) { 591 switch (A->getValue()[0]) { 592 default: 593 return 0; 594 case 's': 595 return 1; 596 case 'z': 597 return 2; 598 } 599 } 600 } 601 return 0; 602 } 603 604 static void GenerateArg(SmallVectorImpl<const char *> &Args, 605 llvm::opt::OptSpecifier OptSpecifier, 606 CompilerInvocation::StringAllocator SA) { 607 Option Opt = getDriverOptTable().getOption(OptSpecifier); 608 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 609 Option::OptionClass::FlagClass, 0); 610 } 611 612 static void GenerateArg(SmallVectorImpl<const char *> &Args, 613 llvm::opt::OptSpecifier OptSpecifier, 614 const Twine &Value, 615 CompilerInvocation::StringAllocator SA) { 616 Option Opt = getDriverOptTable().getOption(OptSpecifier); 617 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 618 Opt.getKind(), 0, Value); 619 } 620 621 // Parse command line arguments into CompilerInvocation. 622 using ParseFn = 623 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 624 DiagnosticsEngine &, const char *)>; 625 626 // Generate command line arguments from CompilerInvocation. 627 using GenerateFn = llvm::function_ref<void( 628 CompilerInvocation &, SmallVectorImpl<const char *> &, 629 CompilerInvocation::StringAllocator)>; 630 631 // May perform round-trip of command line arguments. By default, the round-trip 632 // is enabled in assert builds. This can be overwritten at run-time via the 633 // "-round-trip-args" and "-no-round-trip-args" command line flags. 634 // During round-trip, the command line arguments are parsed into a dummy 635 // instance of CompilerInvocation which is used to generate the command line 636 // arguments again. The real CompilerInvocation instance is then created by 637 // parsing the generated arguments, not the original ones. 638 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 639 CompilerInvocation &RealInvocation, 640 CompilerInvocation &DummyInvocation, 641 ArrayRef<const char *> CommandLineArgs, 642 DiagnosticsEngine &Diags, const char *Argv0) { 643 #ifndef NDEBUG 644 bool DoRoundTripDefault = true; 645 #else 646 bool DoRoundTripDefault = false; 647 #endif 648 649 bool DoRoundTrip = DoRoundTripDefault; 650 for (const auto *Arg : CommandLineArgs) { 651 if (Arg == StringRef("-round-trip-args")) 652 DoRoundTrip = true; 653 if (Arg == StringRef("-no-round-trip-args")) 654 DoRoundTrip = false; 655 } 656 657 // If round-trip was not requested, simply run the parser with the real 658 // invocation diagnostics. 659 if (!DoRoundTrip) 660 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 661 662 // Serializes quoted (and potentially escaped) arguments. 663 auto SerializeArgs = [](ArrayRef<const char *> Args) { 664 std::string Buffer; 665 llvm::raw_string_ostream OS(Buffer); 666 for (const char *Arg : Args) { 667 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 668 OS << ' '; 669 } 670 OS.flush(); 671 return Buffer; 672 }; 673 674 // Setup a dummy DiagnosticsEngine. 675 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 676 DummyDiags.setClient(new TextDiagnosticBuffer()); 677 678 // Run the first parse on the original arguments with the dummy invocation and 679 // diagnostics. 680 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 681 DummyDiags.getNumWarnings() != 0) { 682 // If the first parse did not succeed, it must be user mistake (invalid 683 // command line arguments). We won't be able to generate arguments that 684 // would reproduce the same result. Let's fail again with the real 685 // invocation and diagnostics, so all side-effects of parsing are visible. 686 unsigned NumWarningsBefore = Diags.getNumWarnings(); 687 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 688 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 689 return Success; 690 691 // Parse with original options and diagnostics succeeded even though it 692 // shouldn't have. Something is off. 693 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 694 Diags.Report(diag::note_cc1_round_trip_original) 695 << SerializeArgs(CommandLineArgs); 696 return false; 697 } 698 699 // Setup string allocator. 700 llvm::BumpPtrAllocator Alloc; 701 llvm::StringSaver StringPool(Alloc); 702 auto SA = [&StringPool](const Twine &Arg) { 703 return StringPool.save(Arg).data(); 704 }; 705 706 // Generate arguments from the dummy invocation. If Generate is the 707 // inverse of Parse, the newly generated arguments must have the same 708 // semantics as the original. 709 SmallVector<const char *> GeneratedArgs1; 710 Generate(DummyInvocation, GeneratedArgs1, SA); 711 712 // Run the second parse, now on the generated arguments, and with the real 713 // invocation and diagnostics. The result is what we will end up using for the 714 // rest of compilation, so if Generate is not inverse of Parse, something down 715 // the line will break. 716 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 717 718 // The first parse on original arguments succeeded, but second parse of 719 // generated arguments failed. Something must be wrong with the generator. 720 if (!Success2) { 721 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 722 Diags.Report(diag::note_cc1_round_trip_generated) 723 << 1 << SerializeArgs(GeneratedArgs1); 724 return false; 725 } 726 727 // Generate arguments again, this time from the options we will end up using 728 // for the rest of the compilation. 729 SmallVector<const char *> GeneratedArgs2; 730 Generate(RealInvocation, GeneratedArgs2, SA); 731 732 // Compares two lists of generated arguments. 733 auto Equal = [](const ArrayRef<const char *> A, 734 const ArrayRef<const char *> B) { 735 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 736 [](const char *AElem, const char *BElem) { 737 return StringRef(AElem) == StringRef(BElem); 738 }); 739 }; 740 741 // If we generated different arguments from what we assume are two 742 // semantically equivalent CompilerInvocations, the Generate function may 743 // be non-deterministic. 744 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 745 Diags.Report(diag::err_cc1_round_trip_mismatch); 746 Diags.Report(diag::note_cc1_round_trip_generated) 747 << 1 << SerializeArgs(GeneratedArgs1); 748 Diags.Report(diag::note_cc1_round_trip_generated) 749 << 2 << SerializeArgs(GeneratedArgs2); 750 return false; 751 } 752 753 Diags.Report(diag::remark_cc1_round_trip_generated) 754 << 1 << SerializeArgs(GeneratedArgs1); 755 Diags.Report(diag::remark_cc1_round_trip_generated) 756 << 2 << SerializeArgs(GeneratedArgs2); 757 758 return Success2; 759 } 760 761 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 762 OptSpecifier GroupWithValue, 763 std::vector<std::string> &Diagnostics) { 764 for (auto *A : Args.filtered(Group)) { 765 if (A->getOption().getKind() == Option::FlagClass) { 766 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 767 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 768 Diagnostics.push_back( 769 std::string(A->getOption().getName().drop_front(1))); 770 } else if (A->getOption().matches(GroupWithValue)) { 771 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 772 // group. Add only the group name to the diagnostics. 773 Diagnostics.push_back( 774 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 775 } else { 776 // Otherwise, add its value (for OPT_W_Joined and similar). 777 Diagnostics.push_back(A->getValue()); 778 } 779 } 780 } 781 782 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 783 // it won't verify the input. 784 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 785 DiagnosticsEngine *Diags); 786 787 static void getAllNoBuiltinFuncValues(ArgList &Args, 788 std::vector<std::string> &Funcs) { 789 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 790 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 791 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 792 } 793 794 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 795 SmallVectorImpl<const char *> &Args, 796 CompilerInvocation::StringAllocator SA) { 797 const AnalyzerOptions *AnalyzerOpts = &Opts; 798 799 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 800 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 801 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 802 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 803 MERGER, EXTRACTOR, TABLE_INDEX) \ 804 GENERATE_OPTION_WITH_MARSHALLING( \ 805 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 806 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 807 #include "clang/Driver/Options.inc" 808 #undef ANALYZER_OPTION_WITH_MARSHALLING 809 810 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 811 switch (Opts.AnalysisStoreOpt) { 812 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 813 case NAME##Model: \ 814 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 815 break; 816 #include "clang/StaticAnalyzer/Core/Analyses.def" 817 default: 818 llvm_unreachable("Tried to generate unknown analysis store."); 819 } 820 } 821 822 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 823 switch (Opts.AnalysisConstraintsOpt) { 824 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 825 case NAME##Model: \ 826 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 827 break; 828 #include "clang/StaticAnalyzer/Core/Analyses.def" 829 default: 830 llvm_unreachable("Tried to generate unknown analysis constraint."); 831 } 832 } 833 834 if (Opts.AnalysisDiagOpt != PD_HTML) { 835 switch (Opts.AnalysisDiagOpt) { 836 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 837 case PD_##NAME: \ 838 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 839 break; 840 #include "clang/StaticAnalyzer/Core/Analyses.def" 841 default: 842 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 843 } 844 } 845 846 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 847 switch (Opts.AnalysisPurgeOpt) { 848 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 849 case NAME: \ 850 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 851 break; 852 #include "clang/StaticAnalyzer/Core/Analyses.def" 853 default: 854 llvm_unreachable("Tried to generate unknown analysis purge mode."); 855 } 856 } 857 858 if (Opts.InliningMode != NoRedundancy) { 859 switch (Opts.InliningMode) { 860 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 861 case NAME: \ 862 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 863 break; 864 #include "clang/StaticAnalyzer/Core/Analyses.def" 865 default: 866 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 867 } 868 } 869 870 for (const auto &CP : Opts.CheckersAndPackages) { 871 OptSpecifier Opt = 872 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 873 GenerateArg(Args, Opt, CP.first, SA); 874 } 875 876 AnalyzerOptions ConfigOpts; 877 parseAnalyzerConfigs(ConfigOpts, nullptr); 878 879 for (const auto &C : Opts.Config) { 880 // Don't generate anything that came from parseAnalyzerConfigs. It would be 881 // redundant and may not be valid on the command line. 882 auto Entry = ConfigOpts.Config.find(C.getKey()); 883 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 884 continue; 885 886 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 887 } 888 889 // Nothing to generate for FullCompilerInvocation. 890 } 891 892 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 893 DiagnosticsEngine &Diags) { 894 unsigned NumErrorsBefore = Diags.getNumErrors(); 895 896 AnalyzerOptions *AnalyzerOpts = &Opts; 897 898 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 899 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 900 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 901 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 902 MERGER, EXTRACTOR, TABLE_INDEX) \ 903 PARSE_OPTION_WITH_MARSHALLING( \ 904 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 905 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 906 #include "clang/Driver/Options.inc" 907 #undef ANALYZER_OPTION_WITH_MARSHALLING 908 909 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 910 StringRef Name = A->getValue(); 911 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 912 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 913 .Case(CMDFLAG, NAME##Model) 914 #include "clang/StaticAnalyzer/Core/Analyses.def" 915 .Default(NumStores); 916 if (Value == NumStores) { 917 Diags.Report(diag::err_drv_invalid_value) 918 << A->getAsString(Args) << Name; 919 } else { 920 Opts.AnalysisStoreOpt = Value; 921 } 922 } 923 924 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 925 StringRef Name = A->getValue(); 926 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 927 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 928 .Case(CMDFLAG, NAME##Model) 929 #include "clang/StaticAnalyzer/Core/Analyses.def" 930 .Default(NumConstraints); 931 if (Value == NumConstraints) { 932 Diags.Report(diag::err_drv_invalid_value) 933 << A->getAsString(Args) << Name; 934 } else { 935 #ifndef LLVM_WITH_Z3 936 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 937 Diags.Report(diag::err_analyzer_not_built_with_z3); 938 } 939 #endif // LLVM_WITH_Z3 940 Opts.AnalysisConstraintsOpt = Value; 941 } 942 } 943 944 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 945 StringRef Name = A->getValue(); 946 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 947 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 948 .Case(CMDFLAG, PD_##NAME) 949 #include "clang/StaticAnalyzer/Core/Analyses.def" 950 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 951 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 952 Diags.Report(diag::err_drv_invalid_value) 953 << A->getAsString(Args) << Name; 954 } else { 955 Opts.AnalysisDiagOpt = Value; 956 } 957 } 958 959 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 960 StringRef Name = A->getValue(); 961 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 962 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 963 .Case(CMDFLAG, NAME) 964 #include "clang/StaticAnalyzer/Core/Analyses.def" 965 .Default(NumPurgeModes); 966 if (Value == NumPurgeModes) { 967 Diags.Report(diag::err_drv_invalid_value) 968 << A->getAsString(Args) << Name; 969 } else { 970 Opts.AnalysisPurgeOpt = Value; 971 } 972 } 973 974 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 975 StringRef Name = A->getValue(); 976 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 977 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 978 .Case(CMDFLAG, NAME) 979 #include "clang/StaticAnalyzer/Core/Analyses.def" 980 .Default(NumInliningModes); 981 if (Value == NumInliningModes) { 982 Diags.Report(diag::err_drv_invalid_value) 983 << A->getAsString(Args) << Name; 984 } else { 985 Opts.InliningMode = Value; 986 } 987 } 988 989 Opts.CheckersAndPackages.clear(); 990 for (const Arg *A : 991 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 992 A->claim(); 993 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 994 // We can have a list of comma separated checker names, e.g: 995 // '-analyzer-checker=cocoa,unix' 996 StringRef CheckerAndPackageList = A->getValue(); 997 SmallVector<StringRef, 16> CheckersAndPackages; 998 CheckerAndPackageList.split(CheckersAndPackages, ","); 999 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 1000 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 1001 IsEnabled); 1002 } 1003 1004 // Go through the analyzer configuration options. 1005 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 1006 1007 // We can have a list of comma separated config names, e.g: 1008 // '-analyzer-config key1=val1,key2=val2' 1009 StringRef configList = A->getValue(); 1010 SmallVector<StringRef, 4> configVals; 1011 configList.split(configVals, ","); 1012 for (const auto &configVal : configVals) { 1013 StringRef key, val; 1014 std::tie(key, val) = configVal.split("="); 1015 if (val.empty()) { 1016 Diags.Report(SourceLocation(), 1017 diag::err_analyzer_config_no_value) << configVal; 1018 break; 1019 } 1020 if (val.contains('=')) { 1021 Diags.Report(SourceLocation(), 1022 diag::err_analyzer_config_multiple_values) 1023 << configVal; 1024 break; 1025 } 1026 1027 // TODO: Check checker options too, possibly in CheckerRegistry. 1028 // Leave unknown non-checker configs unclaimed. 1029 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1030 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1031 Diags.Report(diag::err_analyzer_config_unknown) << key; 1032 continue; 1033 } 1034 1035 A->claim(); 1036 Opts.Config[key] = std::string(val); 1037 } 1038 } 1039 1040 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1041 parseAnalyzerConfigs(Opts, &Diags); 1042 else 1043 parseAnalyzerConfigs(Opts, nullptr); 1044 1045 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1046 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1047 if (i != 0) 1048 os << " "; 1049 os << Args.getArgString(i); 1050 } 1051 os.flush(); 1052 1053 return Diags.getNumErrors() == NumErrorsBefore; 1054 } 1055 1056 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1057 StringRef OptionName, StringRef DefaultVal) { 1058 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1059 } 1060 1061 static void initOption(AnalyzerOptions::ConfigTable &Config, 1062 DiagnosticsEngine *Diags, 1063 StringRef &OptionField, StringRef Name, 1064 StringRef DefaultVal) { 1065 // String options may be known to invalid (e.g. if the expected string is a 1066 // file name, but the file does not exist), those will have to be checked in 1067 // parseConfigs. 1068 OptionField = getStringOption(Config, Name, DefaultVal); 1069 } 1070 1071 static void initOption(AnalyzerOptions::ConfigTable &Config, 1072 DiagnosticsEngine *Diags, 1073 bool &OptionField, StringRef Name, bool DefaultVal) { 1074 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1075 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1076 .Case("true", true) 1077 .Case("false", false) 1078 .Default(None); 1079 1080 if (!PossiblyInvalidVal) { 1081 if (Diags) 1082 Diags->Report(diag::err_analyzer_config_invalid_input) 1083 << Name << "a boolean"; 1084 else 1085 OptionField = DefaultVal; 1086 } else 1087 OptionField = PossiblyInvalidVal.getValue(); 1088 } 1089 1090 static void initOption(AnalyzerOptions::ConfigTable &Config, 1091 DiagnosticsEngine *Diags, 1092 unsigned &OptionField, StringRef Name, 1093 unsigned DefaultVal) { 1094 1095 OptionField = DefaultVal; 1096 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1097 .getAsInteger(0, OptionField); 1098 if (Diags && HasFailed) 1099 Diags->Report(diag::err_analyzer_config_invalid_input) 1100 << Name << "an unsigned"; 1101 } 1102 1103 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1104 DiagnosticsEngine *Diags) { 1105 // TODO: There's no need to store the entire configtable, it'd be plenty 1106 // enough tostore checker options. 1107 1108 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1109 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1110 1111 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1112 SHALLOW_VAL, DEEP_VAL) \ 1113 switch (AnOpts.getUserMode()) { \ 1114 case UMK_Shallow: \ 1115 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1116 break; \ 1117 case UMK_Deep: \ 1118 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1119 break; \ 1120 } \ 1121 1122 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1123 #undef ANALYZER_OPTION 1124 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1125 1126 // At this point, AnalyzerOptions is configured. Let's validate some options. 1127 1128 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1129 // The current approach only validates the registered checkers which does not 1130 // contain the runtime enabled checkers and optimally we would validate both. 1131 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1132 std::vector<StringRef> Checkers = 1133 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1134 std::vector<StringRef> Packages = 1135 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1136 1137 SmallVector<StringRef, 16> CheckersAndPackages; 1138 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1139 1140 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1141 if (Diags) { 1142 bool IsChecker = CheckerOrPackage.contains('.'); 1143 bool IsValidName = IsChecker 1144 ? llvm::is_contained(Checkers, CheckerOrPackage) 1145 : llvm::is_contained(Packages, CheckerOrPackage); 1146 1147 if (!IsValidName) 1148 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1149 << CheckerOrPackage; 1150 } 1151 1152 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1153 } 1154 } 1155 1156 if (!Diags) 1157 return; 1158 1159 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1160 Diags->Report(diag::err_analyzer_config_invalid_input) 1161 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1162 1163 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1164 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1165 << "a filename"; 1166 1167 if (!AnOpts.ModelPath.empty() && 1168 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1169 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1170 << "a filename"; 1171 } 1172 1173 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1174 static void 1175 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1176 CompilerInvocation::StringAllocator SA, 1177 OptSpecifier OptEQ, StringRef Name, 1178 const CodeGenOptions::OptRemark &Remark) { 1179 if (Remark.hasValidPattern()) { 1180 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1181 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1182 GenerateArg(Args, OPT_R_Joined, Name, SA); 1183 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1184 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1185 } 1186 } 1187 1188 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1189 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1190 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1191 static CodeGenOptions::OptRemark 1192 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1193 OptSpecifier OptEQ, StringRef Name) { 1194 CodeGenOptions::OptRemark Result; 1195 1196 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1197 StringRef Pattern) { 1198 Result.Pattern = Pattern.str(); 1199 1200 std::string RegexError; 1201 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1202 if (!Result.Regex->isValid(RegexError)) { 1203 Diags.Report(diag::err_drv_optimization_remark_pattern) 1204 << RegexError << A->getAsString(Args); 1205 return false; 1206 } 1207 1208 return true; 1209 }; 1210 1211 for (Arg *A : Args) { 1212 if (A->getOption().matches(OPT_R_Joined)) { 1213 StringRef Value = A->getValue(); 1214 1215 if (Value == Name) 1216 Result.Kind = CodeGenOptions::RK_Enabled; 1217 else if (Value == "everything") 1218 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1219 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1220 Result.Kind = CodeGenOptions::RK_Disabled; 1221 else if (Value == "no-everything") 1222 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1223 else 1224 continue; 1225 1226 if (Result.Kind == CodeGenOptions::RK_Disabled || 1227 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1228 Result.Pattern = ""; 1229 Result.Regex = nullptr; 1230 } else { 1231 InitializeResultPattern(A, ".*"); 1232 } 1233 } else if (A->getOption().matches(OptEQ)) { 1234 Result.Kind = CodeGenOptions::RK_WithPattern; 1235 if (!InitializeResultPattern(A, A->getValue())) 1236 return CodeGenOptions::OptRemark(); 1237 } 1238 } 1239 1240 return Result; 1241 } 1242 1243 static bool parseDiagnosticLevelMask(StringRef FlagName, 1244 const std::vector<std::string> &Levels, 1245 DiagnosticsEngine &Diags, 1246 DiagnosticLevelMask &M) { 1247 bool Success = true; 1248 for (const auto &Level : Levels) { 1249 DiagnosticLevelMask const PM = 1250 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1251 .Case("note", DiagnosticLevelMask::Note) 1252 .Case("remark", DiagnosticLevelMask::Remark) 1253 .Case("warning", DiagnosticLevelMask::Warning) 1254 .Case("error", DiagnosticLevelMask::Error) 1255 .Default(DiagnosticLevelMask::None); 1256 if (PM == DiagnosticLevelMask::None) { 1257 Success = false; 1258 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1259 } 1260 M = M | PM; 1261 } 1262 return Success; 1263 } 1264 1265 static void parseSanitizerKinds(StringRef FlagName, 1266 const std::vector<std::string> &Sanitizers, 1267 DiagnosticsEngine &Diags, SanitizerSet &S) { 1268 for (const auto &Sanitizer : Sanitizers) { 1269 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1270 if (K == SanitizerMask()) 1271 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1272 else 1273 S.set(K, true); 1274 } 1275 } 1276 1277 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1278 SmallVector<StringRef, 4> Values; 1279 serializeSanitizerSet(S, Values); 1280 return Values; 1281 } 1282 1283 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1284 ArgList &Args, DiagnosticsEngine &D, 1285 XRayInstrSet &S) { 1286 llvm::SmallVector<StringRef, 2> BundleParts; 1287 llvm::SplitString(Bundle, BundleParts, ","); 1288 for (const auto &B : BundleParts) { 1289 auto Mask = parseXRayInstrValue(B); 1290 if (Mask == XRayInstrKind::None) 1291 if (B != "none") 1292 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1293 else 1294 S.Mask = Mask; 1295 else if (Mask == XRayInstrKind::All) 1296 S.Mask = Mask; 1297 else 1298 S.set(Mask, true); 1299 } 1300 } 1301 1302 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1303 llvm::SmallVector<StringRef, 2> BundleParts; 1304 serializeXRayInstrValue(S, BundleParts); 1305 std::string Buffer; 1306 llvm::raw_string_ostream OS(Buffer); 1307 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1308 return Buffer; 1309 } 1310 1311 // Set the profile kind using fprofile-instrument-use-path. 1312 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1313 const Twine &ProfileName) { 1314 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1315 // In error, return silently and let Clang PGOUse report the error message. 1316 if (auto E = ReaderOrErr.takeError()) { 1317 llvm::consumeError(std::move(E)); 1318 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1319 return; 1320 } 1321 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1322 std::move(ReaderOrErr.get()); 1323 if (PGOReader->isIRLevelProfile()) { 1324 if (PGOReader->hasCSIRLevelProfile()) 1325 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1326 else 1327 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1328 } else 1329 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1330 } 1331 1332 void CompilerInvocation::GenerateCodeGenArgs( 1333 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1334 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1335 const LangOptions *LangOpts) { 1336 const CodeGenOptions &CodeGenOpts = Opts; 1337 1338 if (Opts.OptimizationLevel == 0) 1339 GenerateArg(Args, OPT_O0, SA); 1340 else 1341 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1342 1343 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1344 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1345 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1346 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1347 MERGER, EXTRACTOR, TABLE_INDEX) \ 1348 GENERATE_OPTION_WITH_MARSHALLING( \ 1349 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1350 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1351 #include "clang/Driver/Options.inc" 1352 #undef CODEGEN_OPTION_WITH_MARSHALLING 1353 1354 if (Opts.OptimizationLevel > 0) { 1355 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1356 GenerateArg(Args, OPT_finline_functions, SA); 1357 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1358 GenerateArg(Args, OPT_finline_hint_functions, SA); 1359 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1360 GenerateArg(Args, OPT_fno_inline, SA); 1361 } 1362 1363 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1364 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1365 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1366 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1367 1368 Optional<StringRef> DebugInfoVal; 1369 switch (Opts.DebugInfo) { 1370 case codegenoptions::DebugLineTablesOnly: 1371 DebugInfoVal = "line-tables-only"; 1372 break; 1373 case codegenoptions::DebugDirectivesOnly: 1374 DebugInfoVal = "line-directives-only"; 1375 break; 1376 case codegenoptions::DebugInfoConstructor: 1377 DebugInfoVal = "constructor"; 1378 break; 1379 case codegenoptions::LimitedDebugInfo: 1380 DebugInfoVal = "limited"; 1381 break; 1382 case codegenoptions::FullDebugInfo: 1383 DebugInfoVal = "standalone"; 1384 break; 1385 case codegenoptions::UnusedTypeInfo: 1386 DebugInfoVal = "unused-types"; 1387 break; 1388 case codegenoptions::NoDebugInfo: // default value 1389 DebugInfoVal = None; 1390 break; 1391 case codegenoptions::LocTrackingOnly: // implied value 1392 DebugInfoVal = None; 1393 break; 1394 } 1395 if (DebugInfoVal) 1396 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1397 1398 for (const auto &Prefix : Opts.DebugPrefixMap) 1399 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1400 Prefix.first + "=" + Prefix.second, SA); 1401 1402 for (const auto &Prefix : Opts.CoveragePrefixMap) 1403 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1404 Prefix.first + "=" + Prefix.second, SA); 1405 1406 if (Opts.NewStructPathTBAA) 1407 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1408 1409 if (Opts.OptimizeSize == 1) 1410 GenerateArg(Args, OPT_O, "s", SA); 1411 else if (Opts.OptimizeSize == 2) 1412 GenerateArg(Args, OPT_O, "z", SA); 1413 1414 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1415 // -ffreestanding. We'll consider that when generating them. 1416 1417 // NoBuiltinFuncs are generated by LangOptions. 1418 1419 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1420 GenerateArg(Args, OPT_funroll_loops, SA); 1421 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1422 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1423 1424 if (!Opts.BinutilsVersion.empty()) 1425 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1426 1427 if (Opts.DebugNameTable == 1428 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1429 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1430 else if (Opts.DebugNameTable == 1431 static_cast<unsigned>( 1432 llvm::DICompileUnit::DebugNameTableKind::Default)) 1433 GenerateArg(Args, OPT_gpubnames, SA); 1434 1435 auto TNK = Opts.getDebugSimpleTemplateNames(); 1436 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1437 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1438 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1439 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1440 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1441 } 1442 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1443 // it or PGOUseInstrumentor. 1444 1445 if (Opts.TimePasses) { 1446 if (Opts.TimePassesPerRun) 1447 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1448 else 1449 GenerateArg(Args, OPT_ftime_report, SA); 1450 } 1451 1452 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1453 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1454 1455 if (Opts.PrepareForThinLTO) 1456 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1457 1458 if (!Opts.ThinLTOIndexFile.empty()) 1459 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1460 1461 if (Opts.SaveTempsFilePrefix == OutputFile) 1462 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1463 1464 StringRef MemProfileBasename("memprof.profraw"); 1465 if (!Opts.MemoryProfileOutput.empty()) { 1466 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1467 GenerateArg(Args, OPT_fmemory_profile, SA); 1468 } else { 1469 size_t ArgLength = 1470 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1471 GenerateArg(Args, OPT_fmemory_profile_EQ, 1472 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1473 } 1474 } 1475 1476 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1477 GenerateArg(Args, OPT_coverage_version_EQ, 1478 StringRef(Opts.CoverageVersion, 4), SA); 1479 1480 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1481 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1482 // won't be generated.) 1483 1484 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1485 std::string InstrBundle = 1486 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1487 if (!InstrBundle.empty()) 1488 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1489 } 1490 1491 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1492 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1493 else if (Opts.CFProtectionReturn) 1494 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1495 else if (Opts.CFProtectionBranch) 1496 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1497 1498 for (const auto &F : Opts.LinkBitcodeFiles) { 1499 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1500 F.PropagateAttrs && F.Internalize; 1501 GenerateArg(Args, 1502 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1503 F.Filename, SA); 1504 } 1505 1506 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1507 // That would make it easy to generate the option only **once** if it was 1508 // explicitly set to non-default value. 1509 if (Opts.ExplicitEmulatedTLS) { 1510 GenerateArg( 1511 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1512 } 1513 1514 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1515 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1516 1517 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1518 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1519 SA); 1520 1521 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1522 OptSpecifier Opt = 1523 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1524 GenerateArg(Args, Opt, SA); 1525 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1526 OptSpecifier Opt = 1527 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1528 GenerateArg(Args, Opt, SA); 1529 } 1530 1531 if (Opts.EnableAIXExtendedAltivecABI) 1532 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1533 1534 if (!Opts.OptRecordPasses.empty()) 1535 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1536 1537 if (!Opts.OptRecordFormat.empty()) 1538 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1539 1540 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1541 Opts.OptimizationRemark); 1542 1543 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1544 Opts.OptimizationRemarkMissed); 1545 1546 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1547 Opts.OptimizationRemarkAnalysis); 1548 1549 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1550 Opts.DiagnosticsHotnessThreshold 1551 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1552 : "auto", 1553 SA); 1554 1555 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1556 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1557 1558 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1559 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1560 1561 if (!Opts.EmitVersionIdentMetadata) 1562 GenerateArg(Args, OPT_Qn, SA); 1563 1564 switch (Opts.FiniteLoops) { 1565 case CodeGenOptions::FiniteLoopsKind::Language: 1566 break; 1567 case CodeGenOptions::FiniteLoopsKind::Always: 1568 GenerateArg(Args, OPT_ffinite_loops, SA); 1569 break; 1570 case CodeGenOptions::FiniteLoopsKind::Never: 1571 GenerateArg(Args, OPT_fno_finite_loops, SA); 1572 break; 1573 } 1574 } 1575 1576 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1577 InputKind IK, 1578 DiagnosticsEngine &Diags, 1579 const llvm::Triple &T, 1580 const std::string &OutputFile, 1581 const LangOptions &LangOptsRef) { 1582 unsigned NumErrorsBefore = Diags.getNumErrors(); 1583 1584 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1585 // TODO: This could be done in Driver 1586 unsigned MaxOptLevel = 3; 1587 if (OptimizationLevel > MaxOptLevel) { 1588 // If the optimization level is not supported, fall back on the default 1589 // optimization 1590 Diags.Report(diag::warn_drv_optimization_value) 1591 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1592 OptimizationLevel = MaxOptLevel; 1593 } 1594 Opts.OptimizationLevel = OptimizationLevel; 1595 1596 // The key paths of codegen options defined in Options.td start with 1597 // "CodeGenOpts.". Let's provide the expected variable name and type. 1598 CodeGenOptions &CodeGenOpts = Opts; 1599 // Some codegen options depend on language options. Let's provide the expected 1600 // variable name and type. 1601 const LangOptions *LangOpts = &LangOptsRef; 1602 1603 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1604 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1605 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1606 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1607 MERGER, EXTRACTOR, TABLE_INDEX) \ 1608 PARSE_OPTION_WITH_MARSHALLING( \ 1609 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1610 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1611 #include "clang/Driver/Options.inc" 1612 #undef CODEGEN_OPTION_WITH_MARSHALLING 1613 1614 // At O0 we want to fully disable inlining outside of cases marked with 1615 // 'alwaysinline' that are required for correctness. 1616 Opts.setInlining((Opts.OptimizationLevel == 0) 1617 ? CodeGenOptions::OnlyAlwaysInlining 1618 : CodeGenOptions::NormalInlining); 1619 // Explicit inlining flags can disable some or all inlining even at 1620 // optimization levels above zero. 1621 if (Arg *InlineArg = Args.getLastArg( 1622 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1623 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1624 if (Opts.OptimizationLevel > 0) { 1625 const Option &InlineOpt = InlineArg->getOption(); 1626 if (InlineOpt.matches(options::OPT_finline_functions)) 1627 Opts.setInlining(CodeGenOptions::NormalInlining); 1628 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1629 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1630 else 1631 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1632 } 1633 } 1634 1635 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1636 // -fdirect-access-external-data. 1637 Opts.DirectAccessExternalData = 1638 Args.hasArg(OPT_fdirect_access_external_data) || 1639 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1640 LangOpts->PICLevel == 0); 1641 1642 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1643 unsigned Val = 1644 llvm::StringSwitch<unsigned>(A->getValue()) 1645 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1646 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1647 .Case("constructor", codegenoptions::DebugInfoConstructor) 1648 .Case("limited", codegenoptions::LimitedDebugInfo) 1649 .Case("standalone", codegenoptions::FullDebugInfo) 1650 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1651 .Default(~0U); 1652 if (Val == ~0U) 1653 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1654 << A->getValue(); 1655 else 1656 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1657 } 1658 1659 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1660 // constructor homing, and vice versa for -fno-use-ctor-homing. 1661 if (const Arg *A = 1662 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1663 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1664 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1665 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1666 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1667 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1668 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1669 } 1670 1671 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1672 auto Split = StringRef(Arg).split('='); 1673 Opts.DebugPrefixMap.insert( 1674 {std::string(Split.first), std::string(Split.second)}); 1675 } 1676 1677 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1678 auto Split = StringRef(Arg).split('='); 1679 Opts.CoveragePrefixMap.insert( 1680 {std::string(Split.first), std::string(Split.second)}); 1681 } 1682 1683 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1684 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1685 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1686 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1687 1688 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1689 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1690 Opts.EmitCallSiteInfo = true; 1691 1692 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1693 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1694 << Opts.DIBugsReportFilePath; 1695 Opts.DIBugsReportFilePath = ""; 1696 } 1697 1698 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1699 Args.hasArg(OPT_new_struct_path_tbaa); 1700 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1701 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1702 if (Opts.SimplifyLibCalls) 1703 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1704 Opts.UnrollLoops = 1705 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1706 (Opts.OptimizationLevel > 1)); 1707 Opts.BinutilsVersion = 1708 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1709 1710 Opts.DebugNameTable = static_cast<unsigned>( 1711 Args.hasArg(OPT_ggnu_pubnames) 1712 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1713 : Args.hasArg(OPT_gpubnames) 1714 ? llvm::DICompileUnit::DebugNameTableKind::Default 1715 : llvm::DICompileUnit::DebugNameTableKind::None); 1716 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1717 StringRef Value = A->getValue(); 1718 if (Value != "simple" && Value != "mangled") 1719 Diags.Report(diag::err_drv_unsupported_option_argument) 1720 << A->getOption().getName() << A->getValue(); 1721 Opts.setDebugSimpleTemplateNames( 1722 StringRef(A->getValue()) == "simple" 1723 ? codegenoptions::DebugTemplateNamesKind::Simple 1724 : codegenoptions::DebugTemplateNamesKind::Mangled); 1725 } 1726 1727 if (!Opts.ProfileInstrumentUsePath.empty()) 1728 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1729 1730 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1731 Opts.TimePasses = true; 1732 1733 // -ftime-report= is only for new pass manager. 1734 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1735 if (Opts.LegacyPassManager) 1736 Diags.Report(diag::err_drv_argument_only_allowed_with) 1737 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1738 1739 StringRef Val = A->getValue(); 1740 if (Val == "per-pass") 1741 Opts.TimePassesPerRun = false; 1742 else if (Val == "per-pass-run") 1743 Opts.TimePassesPerRun = true; 1744 else 1745 Diags.Report(diag::err_drv_invalid_value) 1746 << A->getAsString(Args) << A->getValue(); 1747 } 1748 } 1749 1750 Opts.PrepareForLTO = false; 1751 Opts.PrepareForThinLTO = false; 1752 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1753 Opts.PrepareForLTO = true; 1754 StringRef S = A->getValue(); 1755 if (S == "thin") 1756 Opts.PrepareForThinLTO = true; 1757 else if (S != "full") 1758 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1759 } 1760 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1761 if (IK.getLanguage() != Language::LLVM_IR) 1762 Diags.Report(diag::err_drv_argument_only_allowed_with) 1763 << A->getAsString(Args) << "-x ir"; 1764 Opts.ThinLTOIndexFile = 1765 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1766 } 1767 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1768 Opts.SaveTempsFilePrefix = 1769 llvm::StringSwitch<std::string>(A->getValue()) 1770 .Case("obj", OutputFile) 1771 .Default(llvm::sys::path::filename(OutputFile).str()); 1772 1773 // The memory profile runtime appends the pid to make this name more unique. 1774 const char *MemProfileBasename = "memprof.profraw"; 1775 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1776 SmallString<128> Path( 1777 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1778 llvm::sys::path::append(Path, MemProfileBasename); 1779 Opts.MemoryProfileOutput = std::string(Path); 1780 } else if (Args.hasArg(OPT_fmemory_profile)) 1781 Opts.MemoryProfileOutput = MemProfileBasename; 1782 1783 memcpy(Opts.CoverageVersion, "408*", 4); 1784 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1785 if (Args.hasArg(OPT_coverage_version_EQ)) { 1786 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1787 if (CoverageVersion.size() != 4) { 1788 Diags.Report(diag::err_drv_invalid_value) 1789 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1790 << CoverageVersion; 1791 } else { 1792 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1793 } 1794 } 1795 } 1796 // FIXME: For backend options that are not yet recorded as function 1797 // attributes in the IR, keep track of them so we can embed them in a 1798 // separate data section and use them when building the bitcode. 1799 for (const auto &A : Args) { 1800 // Do not encode output and input. 1801 if (A->getOption().getID() == options::OPT_o || 1802 A->getOption().getID() == options::OPT_INPUT || 1803 A->getOption().getID() == options::OPT_x || 1804 A->getOption().getID() == options::OPT_fembed_bitcode || 1805 A->getOption().matches(options::OPT_W_Group)) 1806 continue; 1807 ArgStringList ASL; 1808 A->render(Args, ASL); 1809 for (const auto &arg : ASL) { 1810 StringRef ArgStr(arg); 1811 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1812 // using \00 to separate each commandline options. 1813 Opts.CmdArgs.push_back('\0'); 1814 } 1815 } 1816 1817 auto XRayInstrBundles = 1818 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1819 if (XRayInstrBundles.empty()) 1820 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1821 else 1822 for (const auto &A : XRayInstrBundles) 1823 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1824 Diags, Opts.XRayInstrumentationBundle); 1825 1826 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1827 StringRef Name = A->getValue(); 1828 if (Name == "full") { 1829 Opts.CFProtectionReturn = 1; 1830 Opts.CFProtectionBranch = 1; 1831 } else if (Name == "return") 1832 Opts.CFProtectionReturn = 1; 1833 else if (Name == "branch") 1834 Opts.CFProtectionBranch = 1; 1835 else if (Name != "none") 1836 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1837 } 1838 1839 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1840 Opts.IBTSeal = 1; 1841 1842 for (auto *A : 1843 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1844 CodeGenOptions::BitcodeFileToLink F; 1845 F.Filename = A->getValue(); 1846 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1847 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1848 // When linking CUDA bitcode, propagate function attributes so that 1849 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1850 F.PropagateAttrs = true; 1851 F.Internalize = true; 1852 } 1853 Opts.LinkBitcodeFiles.push_back(F); 1854 } 1855 1856 if (Args.getLastArg(OPT_femulated_tls) || 1857 Args.getLastArg(OPT_fno_emulated_tls)) { 1858 Opts.ExplicitEmulatedTLS = true; 1859 } 1860 1861 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1862 if (T.isOSAIX()) { 1863 StringRef Name = A->getValue(); 1864 if (Name != "global-dynamic") 1865 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1866 } 1867 } 1868 1869 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1870 StringRef Val = A->getValue(); 1871 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1872 if (!Opts.FPDenormalMode.isValid()) 1873 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1874 } 1875 1876 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1877 StringRef Val = A->getValue(); 1878 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1879 if (!Opts.FP32DenormalMode.isValid()) 1880 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1881 } 1882 1883 // X86_32 has -fppc-struct-return and -freg-struct-return. 1884 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1885 if (Arg *A = 1886 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1887 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1888 // TODO: We might want to consider enabling these options on AIX in the 1889 // future. 1890 if (T.isOSAIX()) 1891 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1892 << A->getSpelling() << T.str(); 1893 1894 const Option &O = A->getOption(); 1895 if (O.matches(OPT_fpcc_struct_return) || 1896 O.matches(OPT_maix_struct_return)) { 1897 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1898 } else { 1899 assert(O.matches(OPT_freg_struct_return) || 1900 O.matches(OPT_msvr4_struct_return)); 1901 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1902 } 1903 } 1904 1905 if (Arg *A = 1906 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1907 if (!T.isOSAIX()) 1908 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1909 << A->getSpelling() << T.str(); 1910 1911 const Option &O = A->getOption(); 1912 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1913 } 1914 1915 bool NeedLocTracking = false; 1916 1917 if (!Opts.OptRecordFile.empty()) 1918 NeedLocTracking = true; 1919 1920 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1921 Opts.OptRecordPasses = A->getValue(); 1922 NeedLocTracking = true; 1923 } 1924 1925 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1926 Opts.OptRecordFormat = A->getValue(); 1927 NeedLocTracking = true; 1928 } 1929 1930 Opts.OptimizationRemark = 1931 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1932 1933 Opts.OptimizationRemarkMissed = 1934 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1935 1936 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1937 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1938 1939 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1940 Opts.OptimizationRemarkMissed.hasValidPattern() || 1941 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1942 1943 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1944 bool UsingProfile = UsingSampleProfile || 1945 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1946 1947 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1948 // An IR file will contain PGO as metadata 1949 IK.getLanguage() != Language::LLVM_IR) 1950 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1951 << "-fdiagnostics-show-hotness"; 1952 1953 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1954 if (auto *arg = 1955 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1956 auto ResultOrErr = 1957 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1958 1959 if (!ResultOrErr) { 1960 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1961 << "-fdiagnostics-hotness-threshold="; 1962 } else { 1963 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1964 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1965 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1966 !UsingProfile) 1967 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1968 << "-fdiagnostics-hotness-threshold="; 1969 } 1970 } 1971 1972 // If the user requested to use a sample profile for PGO, then the 1973 // backend will need to track source location information so the profile 1974 // can be incorporated into the IR. 1975 if (UsingSampleProfile) 1976 NeedLocTracking = true; 1977 1978 if (!Opts.StackUsageOutput.empty()) 1979 NeedLocTracking = true; 1980 1981 // If the user requested a flag that requires source locations available in 1982 // the backend, make sure that the backend tracks source location information. 1983 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1984 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1985 1986 // Parse -fsanitize-recover= arguments. 1987 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1988 parseSanitizerKinds("-fsanitize-recover=", 1989 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1990 Opts.SanitizeRecover); 1991 parseSanitizerKinds("-fsanitize-trap=", 1992 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1993 Opts.SanitizeTrap); 1994 1995 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1996 1997 if (Args.hasArg(options::OPT_ffinite_loops)) 1998 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1999 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2000 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2001 2002 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2003 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2004 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2005 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2006 2007 return Diags.getNumErrors() == NumErrorsBefore; 2008 } 2009 2010 static void 2011 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2012 SmallVectorImpl<const char *> &Args, 2013 CompilerInvocation::StringAllocator SA) { 2014 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2015 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2016 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2017 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2018 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2019 MERGER, EXTRACTOR, TABLE_INDEX) \ 2020 GENERATE_OPTION_WITH_MARSHALLING( \ 2021 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2022 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2023 #include "clang/Driver/Options.inc" 2024 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2025 2026 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2027 GenerateArg(Args, OPT_show_includes, SA); 2028 2029 for (const auto &Dep : Opts.ExtraDeps) { 2030 switch (Dep.second) { 2031 case EDK_SanitizeIgnorelist: 2032 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2033 continue; 2034 case EDK_ModuleFile: 2035 // Module file arguments are generated from FrontendOptions and 2036 // HeaderSearchOptions. 2037 continue; 2038 case EDK_ProfileList: 2039 // Profile list arguments are generated from LanguageOptions via the 2040 // marshalling infrastructure. 2041 continue; 2042 case EDK_DepFileEntry: 2043 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2044 break; 2045 } 2046 } 2047 } 2048 2049 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2050 ArgList &Args, DiagnosticsEngine &Diags, 2051 frontend::ActionKind Action, 2052 bool ShowLineMarkers) { 2053 unsigned NumErrorsBefore = Diags.getNumErrors(); 2054 2055 DependencyOutputOptions &DependencyOutputOpts = Opts; 2056 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2057 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2058 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2059 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2060 MERGER, EXTRACTOR, TABLE_INDEX) \ 2061 PARSE_OPTION_WITH_MARSHALLING( \ 2062 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2063 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2064 #include "clang/Driver/Options.inc" 2065 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2066 2067 if (Args.hasArg(OPT_show_includes)) { 2068 // Writing both /showIncludes and preprocessor output to stdout 2069 // would produce interleaved output, so use stderr for /showIncludes. 2070 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2071 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2072 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2073 else 2074 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2075 } else { 2076 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2077 } 2078 2079 // Add sanitizer ignorelists as extra dependencies. 2080 // They won't be discovered by the regular preprocessor, so 2081 // we let make / ninja to know about this implicit dependency. 2082 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2083 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2084 StringRef Val = A->getValue(); 2085 if (!Val.contains('=')) 2086 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2087 } 2088 if (Opts.IncludeSystemHeaders) { 2089 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2090 StringRef Val = A->getValue(); 2091 if (!Val.contains('=')) 2092 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2093 } 2094 } 2095 } 2096 2097 // -fprofile-list= dependencies. 2098 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2099 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2100 2101 // Propagate the extra dependencies. 2102 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2103 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2104 2105 // Only the -fmodule-file=<file> form. 2106 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2107 StringRef Val = A->getValue(); 2108 if (!Val.contains('=')) 2109 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2110 } 2111 2112 return Diags.getNumErrors() == NumErrorsBefore; 2113 } 2114 2115 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2116 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2117 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2118 // Support both clang's -f[no-]color-diagnostics and gcc's 2119 // -f[no-]diagnostics-colors[=never|always|auto]. 2120 enum { 2121 Colors_On, 2122 Colors_Off, 2123 Colors_Auto 2124 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2125 for (auto *A : Args) { 2126 const Option &O = A->getOption(); 2127 if (O.matches(options::OPT_fcolor_diagnostics) || 2128 O.matches(options::OPT_fdiagnostics_color)) { 2129 ShowColors = Colors_On; 2130 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2131 O.matches(options::OPT_fno_diagnostics_color)) { 2132 ShowColors = Colors_Off; 2133 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2134 StringRef Value(A->getValue()); 2135 if (Value == "always") 2136 ShowColors = Colors_On; 2137 else if (Value == "never") 2138 ShowColors = Colors_Off; 2139 else if (Value == "auto") 2140 ShowColors = Colors_Auto; 2141 } 2142 } 2143 return ShowColors == Colors_On || 2144 (ShowColors == Colors_Auto && 2145 llvm::sys::Process::StandardErrHasColors()); 2146 } 2147 2148 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2149 DiagnosticsEngine &Diags) { 2150 bool Success = true; 2151 for (const auto &Prefix : VerifyPrefixes) { 2152 // Every prefix must start with a letter and contain only alphanumeric 2153 // characters, hyphens, and underscores. 2154 auto BadChar = llvm::find_if(Prefix, [](char C) { 2155 return !isAlphanumeric(C) && C != '-' && C != '_'; 2156 }); 2157 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2158 Success = false; 2159 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2160 Diags.Report(diag::note_drv_verify_prefix_spelling); 2161 } 2162 } 2163 return Success; 2164 } 2165 2166 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2167 SmallVectorImpl<const char *> &Args, 2168 CompilerInvocation::StringAllocator SA) { 2169 const FileSystemOptions &FileSystemOpts = Opts; 2170 2171 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2172 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2173 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2174 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2175 MERGER, EXTRACTOR, TABLE_INDEX) \ 2176 GENERATE_OPTION_WITH_MARSHALLING( \ 2177 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2178 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2179 #include "clang/Driver/Options.inc" 2180 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2181 } 2182 2183 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2184 DiagnosticsEngine &Diags) { 2185 unsigned NumErrorsBefore = Diags.getNumErrors(); 2186 2187 FileSystemOptions &FileSystemOpts = Opts; 2188 2189 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2190 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2191 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2192 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2193 MERGER, EXTRACTOR, TABLE_INDEX) \ 2194 PARSE_OPTION_WITH_MARSHALLING( \ 2195 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2196 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2197 #include "clang/Driver/Options.inc" 2198 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2199 2200 return Diags.getNumErrors() == NumErrorsBefore; 2201 } 2202 2203 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2204 SmallVectorImpl<const char *> &Args, 2205 CompilerInvocation::StringAllocator SA) { 2206 const MigratorOptions &MigratorOpts = Opts; 2207 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2208 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2209 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2210 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2211 MERGER, EXTRACTOR, TABLE_INDEX) \ 2212 GENERATE_OPTION_WITH_MARSHALLING( \ 2213 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2214 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2215 #include "clang/Driver/Options.inc" 2216 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2217 } 2218 2219 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2220 DiagnosticsEngine &Diags) { 2221 unsigned NumErrorsBefore = Diags.getNumErrors(); 2222 2223 MigratorOptions &MigratorOpts = Opts; 2224 2225 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2226 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2227 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2228 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2229 MERGER, EXTRACTOR, TABLE_INDEX) \ 2230 PARSE_OPTION_WITH_MARSHALLING( \ 2231 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2232 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2233 #include "clang/Driver/Options.inc" 2234 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2235 2236 return Diags.getNumErrors() == NumErrorsBefore; 2237 } 2238 2239 void CompilerInvocation::GenerateDiagnosticArgs( 2240 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2241 StringAllocator SA, bool DefaultDiagColor) { 2242 const DiagnosticOptions *DiagnosticOpts = &Opts; 2243 #define DIAG_OPTION_WITH_MARSHALLING( \ 2244 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2245 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2246 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2247 MERGER, EXTRACTOR, TABLE_INDEX) \ 2248 GENERATE_OPTION_WITH_MARSHALLING( \ 2249 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2250 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2251 #include "clang/Driver/Options.inc" 2252 #undef DIAG_OPTION_WITH_MARSHALLING 2253 2254 if (!Opts.DiagnosticSerializationFile.empty()) 2255 GenerateArg(Args, OPT_diagnostic_serialized_file, 2256 Opts.DiagnosticSerializationFile, SA); 2257 2258 if (Opts.ShowColors) 2259 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2260 2261 if (Opts.VerifyDiagnostics && 2262 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2263 GenerateArg(Args, OPT_verify, SA); 2264 2265 for (const auto &Prefix : Opts.VerifyPrefixes) 2266 if (Prefix != "expected") 2267 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2268 2269 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2270 if (VIU == DiagnosticLevelMask::None) { 2271 // This is the default, don't generate anything. 2272 } else if (VIU == DiagnosticLevelMask::All) { 2273 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2274 } else { 2275 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2276 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2277 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2278 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2279 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2280 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2281 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2282 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2283 } 2284 2285 for (const auto &Warning : Opts.Warnings) { 2286 // This option is automatically generated from UndefPrefixes. 2287 if (Warning == "undef-prefix") 2288 continue; 2289 Args.push_back(SA(StringRef("-W") + Warning)); 2290 } 2291 2292 for (const auto &Remark : Opts.Remarks) { 2293 // These arguments are generated from OptimizationRemark fields of 2294 // CodeGenOptions. 2295 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2296 "pass-analysis", "no-pass-analysis", 2297 "pass-missed", "no-pass-missed"}; 2298 if (llvm::is_contained(IgnoredRemarks, Remark)) 2299 continue; 2300 2301 Args.push_back(SA(StringRef("-R") + Remark)); 2302 } 2303 } 2304 2305 std::unique_ptr<DiagnosticOptions> 2306 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2307 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2308 unsigned MissingArgIndex, MissingArgCount; 2309 InputArgList Args = getDriverOptTable().ParseArgs( 2310 Argv.slice(1), MissingArgIndex, MissingArgCount); 2311 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2312 // Any errors that would be diagnosed here will also be diagnosed later, 2313 // when the DiagnosticsEngine actually exists. 2314 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2315 return DiagOpts; 2316 } 2317 2318 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2319 DiagnosticsEngine *Diags, 2320 bool DefaultDiagColor) { 2321 Optional<DiagnosticsEngine> IgnoringDiags; 2322 if (!Diags) { 2323 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2324 new IgnoringDiagConsumer()); 2325 Diags = &*IgnoringDiags; 2326 } 2327 2328 unsigned NumErrorsBefore = Diags->getNumErrors(); 2329 2330 // The key paths of diagnostic options defined in Options.td start with 2331 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2332 DiagnosticOptions *DiagnosticOpts = &Opts; 2333 2334 #define DIAG_OPTION_WITH_MARSHALLING( \ 2335 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2336 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2337 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2338 MERGER, EXTRACTOR, TABLE_INDEX) \ 2339 PARSE_OPTION_WITH_MARSHALLING( \ 2340 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2341 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2342 #include "clang/Driver/Options.inc" 2343 #undef DIAG_OPTION_WITH_MARSHALLING 2344 2345 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2346 2347 if (Arg *A = 2348 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2349 Opts.DiagnosticSerializationFile = A->getValue(); 2350 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2351 2352 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2353 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2354 if (Args.hasArg(OPT_verify)) 2355 Opts.VerifyPrefixes.push_back("expected"); 2356 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2357 // then sort it to prepare for fast lookup using std::binary_search. 2358 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2359 Opts.VerifyDiagnostics = false; 2360 else 2361 llvm::sort(Opts.VerifyPrefixes); 2362 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2363 parseDiagnosticLevelMask( 2364 "-verify-ignore-unexpected=", 2365 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2366 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2367 DiagMask = DiagnosticLevelMask::All; 2368 Opts.setVerifyIgnoreUnexpected(DiagMask); 2369 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2370 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2371 Diags->Report(diag::warn_ignoring_ftabstop_value) 2372 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2373 } 2374 2375 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2376 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2377 2378 return Diags->getNumErrors() == NumErrorsBefore; 2379 } 2380 2381 /// Parse the argument to the -ftest-module-file-extension 2382 /// command-line argument. 2383 /// 2384 /// \returns true on error, false on success. 2385 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2386 std::string &BlockName, 2387 unsigned &MajorVersion, 2388 unsigned &MinorVersion, 2389 bool &Hashed, 2390 std::string &UserInfo) { 2391 SmallVector<StringRef, 5> Args; 2392 Arg.split(Args, ':', 5); 2393 if (Args.size() < 5) 2394 return true; 2395 2396 BlockName = std::string(Args[0]); 2397 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2398 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2399 if (Args[3].getAsInteger(2, Hashed)) return true; 2400 if (Args.size() > 4) 2401 UserInfo = std::string(Args[4]); 2402 return false; 2403 } 2404 2405 /// Return a table that associates command line option specifiers with the 2406 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2407 /// intentionally missing, as this case is handled separately from other 2408 /// frontend options. 2409 static const auto &getFrontendActionTable() { 2410 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2411 {frontend::ASTDeclList, OPT_ast_list}, 2412 2413 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2414 {frontend::ASTDump, OPT_ast_dump_all}, 2415 {frontend::ASTDump, OPT_ast_dump_EQ}, 2416 {frontend::ASTDump, OPT_ast_dump}, 2417 {frontend::ASTDump, OPT_ast_dump_lookups}, 2418 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2419 2420 {frontend::ASTPrint, OPT_ast_print}, 2421 {frontend::ASTView, OPT_ast_view}, 2422 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2423 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2424 {frontend::DumpTokens, OPT_dump_tokens}, 2425 {frontend::EmitAssembly, OPT_S}, 2426 {frontend::EmitBC, OPT_emit_llvm_bc}, 2427 {frontend::EmitHTML, OPT_emit_html}, 2428 {frontend::EmitLLVM, OPT_emit_llvm}, 2429 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2430 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2431 {frontend::EmitObj, OPT_emit_obj}, 2432 {frontend::ExtractAPI, OPT_extract_api}, 2433 2434 {frontend::FixIt, OPT_fixit_EQ}, 2435 {frontend::FixIt, OPT_fixit}, 2436 2437 {frontend::GenerateModule, OPT_emit_module}, 2438 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2439 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2440 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2441 {frontend::GeneratePCH, OPT_emit_pch}, 2442 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2443 {frontend::InitOnly, OPT_init_only}, 2444 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2445 {frontend::ModuleFileInfo, OPT_module_file_info}, 2446 {frontend::VerifyPCH, OPT_verify_pch}, 2447 {frontend::PrintPreamble, OPT_print_preamble}, 2448 {frontend::PrintPreprocessedInput, OPT_E}, 2449 {frontend::TemplightDump, OPT_templight_dump}, 2450 {frontend::RewriteMacros, OPT_rewrite_macros}, 2451 {frontend::RewriteObjC, OPT_rewrite_objc}, 2452 {frontend::RewriteTest, OPT_rewrite_test}, 2453 {frontend::RunAnalysis, OPT_analyze}, 2454 {frontend::MigrateSource, OPT_migrate}, 2455 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2456 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2457 OPT_print_dependency_directives_minimized_source}, 2458 }; 2459 2460 return Table; 2461 } 2462 2463 /// Maps command line option to frontend action. 2464 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2465 for (const auto &ActionOpt : getFrontendActionTable()) 2466 if (ActionOpt.second == Opt.getID()) 2467 return ActionOpt.first; 2468 2469 return None; 2470 } 2471 2472 /// Maps frontend action to command line option. 2473 static Optional<OptSpecifier> 2474 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2475 for (const auto &ActionOpt : getFrontendActionTable()) 2476 if (ActionOpt.first == ProgramAction) 2477 return OptSpecifier(ActionOpt.second); 2478 2479 return None; 2480 } 2481 2482 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2483 SmallVectorImpl<const char *> &Args, 2484 CompilerInvocation::StringAllocator SA, 2485 bool IsHeader) { 2486 const FrontendOptions &FrontendOpts = Opts; 2487 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2488 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2489 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2490 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2491 MERGER, EXTRACTOR, TABLE_INDEX) \ 2492 GENERATE_OPTION_WITH_MARSHALLING( \ 2493 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2494 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2495 #include "clang/Driver/Options.inc" 2496 #undef FRONTEND_OPTION_WITH_MARSHALLING 2497 2498 Optional<OptSpecifier> ProgramActionOpt = 2499 getProgramActionOpt(Opts.ProgramAction); 2500 2501 // Generating a simple flag covers most frontend actions. 2502 std::function<void()> GenerateProgramAction = [&]() { 2503 GenerateArg(Args, *ProgramActionOpt, SA); 2504 }; 2505 2506 if (!ProgramActionOpt) { 2507 // PluginAction is the only program action handled separately. 2508 assert(Opts.ProgramAction == frontend::PluginAction && 2509 "Frontend action without option."); 2510 GenerateProgramAction = [&]() { 2511 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2512 }; 2513 } 2514 2515 // FIXME: Simplify the complex 'AST dump' command line. 2516 if (Opts.ProgramAction == frontend::ASTDump) { 2517 GenerateProgramAction = [&]() { 2518 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2519 // marshalling infrastructure. 2520 2521 if (Opts.ASTDumpFormat != ADOF_Default) { 2522 StringRef Format; 2523 switch (Opts.ASTDumpFormat) { 2524 case ADOF_Default: 2525 llvm_unreachable("Default AST dump format."); 2526 case ADOF_JSON: 2527 Format = "json"; 2528 break; 2529 } 2530 2531 if (Opts.ASTDumpAll) 2532 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2533 if (Opts.ASTDumpDecls) 2534 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2535 } else { 2536 if (Opts.ASTDumpAll) 2537 GenerateArg(Args, OPT_ast_dump_all, SA); 2538 if (Opts.ASTDumpDecls) 2539 GenerateArg(Args, OPT_ast_dump, SA); 2540 } 2541 }; 2542 } 2543 2544 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2545 GenerateProgramAction = [&]() { 2546 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2547 }; 2548 } 2549 2550 GenerateProgramAction(); 2551 2552 for (const auto &PluginArgs : Opts.PluginArgs) { 2553 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2554 const char *Spelling = 2555 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2556 for (const auto &PluginArg : PluginArgs.second) 2557 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2558 } 2559 2560 for (const auto &Ext : Opts.ModuleFileExtensions) 2561 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2562 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2563 2564 if (!Opts.CodeCompletionAt.FileName.empty()) 2565 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2566 SA); 2567 2568 for (const auto &Plugin : Opts.Plugins) 2569 GenerateArg(Args, OPT_load, Plugin, SA); 2570 2571 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2572 2573 for (const auto &ModuleFile : Opts.ModuleFiles) 2574 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2575 2576 if (Opts.AuxTargetCPU.hasValue()) 2577 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2578 2579 if (Opts.AuxTargetFeatures.hasValue()) 2580 for (const auto &Feature : *Opts.AuxTargetFeatures) 2581 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2582 2583 { 2584 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2585 StringRef ModuleMap = 2586 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2587 StringRef HeaderUnit = ""; 2588 switch (Opts.DashX.getHeaderUnitKind()) { 2589 case InputKind::HeaderUnit_None: 2590 break; 2591 case InputKind::HeaderUnit_User: 2592 HeaderUnit = "-user"; 2593 break; 2594 case InputKind::HeaderUnit_System: 2595 HeaderUnit = "-system"; 2596 break; 2597 case InputKind::HeaderUnit_Abs: 2598 HeaderUnit = "-header-unit"; 2599 break; 2600 } 2601 StringRef Header = IsHeader ? "-header" : ""; 2602 2603 StringRef Lang; 2604 switch (Opts.DashX.getLanguage()) { 2605 case Language::C: 2606 Lang = "c"; 2607 break; 2608 case Language::OpenCL: 2609 Lang = "cl"; 2610 break; 2611 case Language::OpenCLCXX: 2612 Lang = "clcpp"; 2613 break; 2614 case Language::CUDA: 2615 Lang = "cuda"; 2616 break; 2617 case Language::HIP: 2618 Lang = "hip"; 2619 break; 2620 case Language::CXX: 2621 Lang = "c++"; 2622 break; 2623 case Language::ObjC: 2624 Lang = "objective-c"; 2625 break; 2626 case Language::ObjCXX: 2627 Lang = "objective-c++"; 2628 break; 2629 case Language::RenderScript: 2630 Lang = "renderscript"; 2631 break; 2632 case Language::Asm: 2633 Lang = "assembler-with-cpp"; 2634 break; 2635 case Language::Unknown: 2636 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2637 "Generating -x argument for unknown language (not precompiled)."); 2638 Lang = "ast"; 2639 break; 2640 case Language::LLVM_IR: 2641 Lang = "ir"; 2642 break; 2643 case Language::HLSL: 2644 Lang = "hlsl"; 2645 break; 2646 } 2647 2648 GenerateArg(Args, OPT_x, 2649 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2650 } 2651 2652 // OPT_INPUT has a unique class, generate it directly. 2653 for (const auto &Input : Opts.Inputs) 2654 Args.push_back(SA(Input.getFile())); 2655 } 2656 2657 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2658 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2659 unsigned NumErrorsBefore = Diags.getNumErrors(); 2660 2661 FrontendOptions &FrontendOpts = Opts; 2662 2663 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2664 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2665 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2666 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2667 MERGER, EXTRACTOR, TABLE_INDEX) \ 2668 PARSE_OPTION_WITH_MARSHALLING( \ 2669 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2670 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2671 #include "clang/Driver/Options.inc" 2672 #undef FRONTEND_OPTION_WITH_MARSHALLING 2673 2674 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2675 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2676 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2677 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2678 assert(ProgramAction && "Option specifier not in Action_Group."); 2679 2680 if (ProgramAction == frontend::ASTDump && 2681 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2682 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2683 .CaseLower("default", ADOF_Default) 2684 .CaseLower("json", ADOF_JSON) 2685 .Default(std::numeric_limits<unsigned>::max()); 2686 2687 if (Val != std::numeric_limits<unsigned>::max()) 2688 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2689 else { 2690 Diags.Report(diag::err_drv_invalid_value) 2691 << A->getAsString(Args) << A->getValue(); 2692 Opts.ASTDumpFormat = ADOF_Default; 2693 } 2694 } 2695 2696 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2697 Opts.FixItSuffix = A->getValue(); 2698 2699 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2700 StringRef ArgStr = 2701 Args.hasArg(OPT_interface_stub_version_EQ) 2702 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2703 : "ifs-v1"; 2704 if (ArgStr == "experimental-yaml-elf-v1" || 2705 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2706 ArgStr == "experimental-tapi-elf-v1") { 2707 std::string ErrorMessage = 2708 "Invalid interface stub format: " + ArgStr.str() + 2709 " is deprecated."; 2710 Diags.Report(diag::err_drv_invalid_value) 2711 << "Must specify a valid interface stub format type, ie: " 2712 "-interface-stub-version=ifs-v1" 2713 << ErrorMessage; 2714 ProgramAction = frontend::ParseSyntaxOnly; 2715 } else if (!ArgStr.startswith("ifs-")) { 2716 std::string ErrorMessage = 2717 "Invalid interface stub format: " + ArgStr.str() + "."; 2718 Diags.Report(diag::err_drv_invalid_value) 2719 << "Must specify a valid interface stub format type, ie: " 2720 "-interface-stub-version=ifs-v1" 2721 << ErrorMessage; 2722 ProgramAction = frontend::ParseSyntaxOnly; 2723 } 2724 } 2725 2726 Opts.ProgramAction = *ProgramAction; 2727 } 2728 2729 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2730 Opts.Plugins.emplace_back(A->getValue(0)); 2731 Opts.ProgramAction = frontend::PluginAction; 2732 Opts.ActionName = A->getValue(); 2733 } 2734 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2735 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2736 2737 for (const std::string &Arg : 2738 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2739 std::string BlockName; 2740 unsigned MajorVersion; 2741 unsigned MinorVersion; 2742 bool Hashed; 2743 std::string UserInfo; 2744 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2745 MinorVersion, Hashed, UserInfo)) { 2746 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2747 2748 continue; 2749 } 2750 2751 // Add the testing module file extension. 2752 Opts.ModuleFileExtensions.push_back( 2753 std::make_shared<TestModuleFileExtension>( 2754 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2755 } 2756 2757 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2758 Opts.CodeCompletionAt = 2759 ParsedSourceLocation::FromString(A->getValue()); 2760 if (Opts.CodeCompletionAt.FileName.empty()) 2761 Diags.Report(diag::err_drv_invalid_value) 2762 << A->getAsString(Args) << A->getValue(); 2763 } 2764 2765 Opts.Plugins = Args.getAllArgValues(OPT_load); 2766 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2767 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2768 // Only the -fmodule-file=<file> form. 2769 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2770 StringRef Val = A->getValue(); 2771 if (!Val.contains('=')) 2772 Opts.ModuleFiles.push_back(std::string(Val)); 2773 } 2774 2775 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2776 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2777 << "-emit-module"; 2778 2779 if (Args.hasArg(OPT_aux_target_cpu)) 2780 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2781 if (Args.hasArg(OPT_aux_target_feature)) 2782 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2783 2784 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2785 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2786 Diags.Report(diag::err_drv_argument_not_allowed_with) 2787 << "ARC migration" << "ObjC migration"; 2788 } 2789 2790 InputKind DashX(Language::Unknown); 2791 if (const Arg *A = Args.getLastArg(OPT_x)) { 2792 StringRef XValue = A->getValue(); 2793 2794 // Parse suffixes: 2795 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2796 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2797 bool Preprocessed = XValue.consume_back("-cpp-output"); 2798 bool ModuleMap = XValue.consume_back("-module-map"); 2799 // Detect and consume the header indicator. 2800 bool IsHeader = 2801 XValue != "precompiled-header" && XValue.consume_back("-header"); 2802 2803 // If we have c++-{user,system}-header, that indicates a header unit input 2804 // likewise, if the user put -fmodule-header together with a header with an 2805 // absolute path (header-unit-header). 2806 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2807 if (IsHeader || Preprocessed) { 2808 if (XValue.consume_back("-header-unit")) 2809 HUK = InputKind::HeaderUnit_Abs; 2810 else if (XValue.consume_back("-system")) 2811 HUK = InputKind::HeaderUnit_System; 2812 else if (XValue.consume_back("-user")) 2813 HUK = InputKind::HeaderUnit_User; 2814 } 2815 2816 // The value set by this processing is an un-preprocessed source which is 2817 // not intended to be a module map or header unit. 2818 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2819 HUK == InputKind::HeaderUnit_None; 2820 2821 // Principal languages. 2822 DashX = llvm::StringSwitch<InputKind>(XValue) 2823 .Case("c", Language::C) 2824 .Case("cl", Language::OpenCL) 2825 .Case("clcpp", Language::OpenCLCXX) 2826 .Case("cuda", Language::CUDA) 2827 .Case("hip", Language::HIP) 2828 .Case("c++", Language::CXX) 2829 .Case("objective-c", Language::ObjC) 2830 .Case("objective-c++", Language::ObjCXX) 2831 .Case("renderscript", Language::RenderScript) 2832 .Case("hlsl", Language::HLSL) 2833 .Default(Language::Unknown); 2834 2835 // "objc[++]-cpp-output" is an acceptable synonym for 2836 // "objective-c[++]-cpp-output". 2837 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2838 HUK == InputKind::HeaderUnit_None) 2839 DashX = llvm::StringSwitch<InputKind>(XValue) 2840 .Case("objc", Language::ObjC) 2841 .Case("objc++", Language::ObjCXX) 2842 .Default(Language::Unknown); 2843 2844 // Some special cases cannot be combined with suffixes. 2845 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2846 HUK == InputKind::HeaderUnit_None) 2847 DashX = llvm::StringSwitch<InputKind>(XValue) 2848 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2849 .Case("assembler-with-cpp", Language::Asm) 2850 .Cases("ast", "pcm", "precompiled-header", 2851 InputKind(Language::Unknown, InputKind::Precompiled)) 2852 .Case("ir", Language::LLVM_IR) 2853 .Default(Language::Unknown); 2854 2855 if (DashX.isUnknown()) 2856 Diags.Report(diag::err_drv_invalid_value) 2857 << A->getAsString(Args) << A->getValue(); 2858 2859 if (Preprocessed) 2860 DashX = DashX.getPreprocessed(); 2861 // A regular header is considered mutually exclusive with a header unit. 2862 if (HUK != InputKind::HeaderUnit_None) { 2863 DashX = DashX.withHeaderUnit(HUK); 2864 IsHeaderFile = true; 2865 } else if (IsHeaderFile) 2866 DashX = DashX.getHeader(); 2867 if (ModuleMap) 2868 DashX = DashX.withFormat(InputKind::ModuleMap); 2869 } 2870 2871 // '-' is the default input if none is given. 2872 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2873 Opts.Inputs.clear(); 2874 if (Inputs.empty()) 2875 Inputs.push_back("-"); 2876 2877 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2878 Inputs.size() > 1) 2879 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2880 2881 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2882 InputKind IK = DashX; 2883 if (IK.isUnknown()) { 2884 IK = FrontendOptions::getInputKindForExtension( 2885 StringRef(Inputs[i]).rsplit('.').second); 2886 // FIXME: Warn on this? 2887 if (IK.isUnknown()) 2888 IK = Language::C; 2889 // FIXME: Remove this hack. 2890 if (i == 0) 2891 DashX = IK; 2892 } 2893 2894 bool IsSystem = false; 2895 2896 // The -emit-module action implicitly takes a module map. 2897 if (Opts.ProgramAction == frontend::GenerateModule && 2898 IK.getFormat() == InputKind::Source) { 2899 IK = IK.withFormat(InputKind::ModuleMap); 2900 IsSystem = Opts.IsSystemModule; 2901 } 2902 2903 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2904 } 2905 2906 Opts.DashX = DashX; 2907 2908 return Diags.getNumErrors() == NumErrorsBefore; 2909 } 2910 2911 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2912 void *MainAddr) { 2913 std::string ClangExecutable = 2914 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2915 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2916 } 2917 2918 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2919 SmallVectorImpl<const char *> &Args, 2920 CompilerInvocation::StringAllocator SA) { 2921 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2922 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2923 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2924 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2925 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2926 MERGER, EXTRACTOR, TABLE_INDEX) \ 2927 GENERATE_OPTION_WITH_MARSHALLING( \ 2928 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2929 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2930 #include "clang/Driver/Options.inc" 2931 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2932 2933 if (Opts.UseLibcxx) 2934 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2935 2936 if (!Opts.ModuleCachePath.empty()) 2937 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2938 2939 for (const auto &File : Opts.PrebuiltModuleFiles) 2940 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2941 2942 for (const auto &Path : Opts.PrebuiltModulePaths) 2943 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2944 2945 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2946 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2947 2948 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2949 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2950 llvm::Optional<bool> IsFramework, 2951 llvm::Optional<bool> IgnoreSysRoot) { 2952 return llvm::is_contained(Groups, Entry.Group) && 2953 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2954 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2955 }; 2956 2957 auto It = Opts.UserEntries.begin(); 2958 auto End = Opts.UserEntries.end(); 2959 2960 // Add -I..., -F..., and -index-header-map options in order. 2961 for (; It < End && 2962 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2963 ++It) { 2964 OptSpecifier Opt = [It, Matches]() { 2965 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2966 return OPT_F; 2967 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2968 return OPT_I; 2969 if (Matches(*It, frontend::Angled, true, true)) 2970 return OPT_F; 2971 if (Matches(*It, frontend::Angled, false, true)) 2972 return OPT_I; 2973 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2974 }(); 2975 2976 if (It->Group == frontend::IndexHeaderMap) 2977 GenerateArg(Args, OPT_index_header_map, SA); 2978 GenerateArg(Args, Opt, It->Path, SA); 2979 }; 2980 2981 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2982 // have already been generated as "-I[xx]yy". If that's the case, their 2983 // position on command line was such that this has no semantic impact on 2984 // include paths. 2985 for (; It < End && 2986 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2987 ++It) { 2988 OptSpecifier Opt = 2989 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2990 GenerateArg(Args, Opt, It->Path, SA); 2991 } 2992 2993 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2994 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2995 // command line was such that this has no semantic impact on include paths. 2996 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2997 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2998 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2999 GenerateArg(Args, OPT_iquote, It->Path, SA); 3000 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3001 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3002 It->Path, SA); 3003 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3004 GenerateArg(Args, OPT_iframework, It->Path, SA); 3005 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3006 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3007 3008 // Add the paths for the various language specific isystem flags. 3009 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3010 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3011 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3012 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3013 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3014 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3015 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3016 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3017 3018 // Add the internal paths from a driver that detects standard include paths. 3019 // Note: Some paths that came from "-internal-isystem" arguments may have 3020 // already been generated as "-isystem". If that's the case, their position on 3021 // command line was such that this has no semantic impact on include paths. 3022 for (; It < End && 3023 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3024 ++It) { 3025 OptSpecifier Opt = It->Group == frontend::System 3026 ? OPT_internal_isystem 3027 : OPT_internal_externc_isystem; 3028 GenerateArg(Args, Opt, It->Path, SA); 3029 } 3030 3031 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3032 3033 // Add the path prefixes which are implicitly treated as being system headers. 3034 for (const auto &P : Opts.SystemHeaderPrefixes) { 3035 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3036 : OPT_no_system_header_prefix; 3037 GenerateArg(Args, Opt, P.Prefix, SA); 3038 } 3039 3040 for (const std::string &F : Opts.VFSOverlayFiles) 3041 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3042 } 3043 3044 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3045 DiagnosticsEngine &Diags, 3046 const std::string &WorkingDir) { 3047 unsigned NumErrorsBefore = Diags.getNumErrors(); 3048 3049 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3050 3051 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3052 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3053 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3054 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3055 MERGER, EXTRACTOR, TABLE_INDEX) \ 3056 PARSE_OPTION_WITH_MARSHALLING( \ 3057 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3058 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3059 #include "clang/Driver/Options.inc" 3060 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3061 3062 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3063 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3064 3065 // Canonicalize -fmodules-cache-path before storing it. 3066 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3067 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3068 if (WorkingDir.empty()) 3069 llvm::sys::fs::make_absolute(P); 3070 else 3071 llvm::sys::fs::make_absolute(WorkingDir, P); 3072 } 3073 llvm::sys::path::remove_dots(P); 3074 Opts.ModuleCachePath = std::string(P.str()); 3075 3076 // Only the -fmodule-file=<name>=<file> form. 3077 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3078 StringRef Val = A->getValue(); 3079 if (Val.contains('=')) { 3080 auto Split = Val.split('='); 3081 Opts.PrebuiltModuleFiles.insert( 3082 {std::string(Split.first), std::string(Split.second)}); 3083 } 3084 } 3085 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3086 Opts.AddPrebuiltModulePath(A->getValue()); 3087 3088 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3089 StringRef MacroDef = A->getValue(); 3090 Opts.ModulesIgnoreMacros.insert( 3091 llvm::CachedHashString(MacroDef.split('=').first)); 3092 } 3093 3094 // Add -I..., -F..., and -index-header-map options in order. 3095 bool IsIndexHeaderMap = false; 3096 bool IsSysrootSpecified = 3097 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3098 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3099 if (A->getOption().matches(OPT_index_header_map)) { 3100 // -index-header-map applies to the next -I or -F. 3101 IsIndexHeaderMap = true; 3102 continue; 3103 } 3104 3105 frontend::IncludeDirGroup Group = 3106 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3107 3108 bool IsFramework = A->getOption().matches(OPT_F); 3109 std::string Path = A->getValue(); 3110 3111 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3112 SmallString<32> Buffer; 3113 llvm::sys::path::append(Buffer, Opts.Sysroot, 3114 llvm::StringRef(A->getValue()).substr(1)); 3115 Path = std::string(Buffer.str()); 3116 } 3117 3118 Opts.AddPath(Path, Group, IsFramework, 3119 /*IgnoreSysroot*/ true); 3120 IsIndexHeaderMap = false; 3121 } 3122 3123 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3124 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3125 for (const auto *A : 3126 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3127 if (A->getOption().matches(OPT_iprefix)) 3128 Prefix = A->getValue(); 3129 else if (A->getOption().matches(OPT_iwithprefix)) 3130 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3131 else 3132 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3133 } 3134 3135 for (const auto *A : Args.filtered(OPT_idirafter)) 3136 Opts.AddPath(A->getValue(), frontend::After, false, true); 3137 for (const auto *A : Args.filtered(OPT_iquote)) 3138 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3139 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3140 Opts.AddPath(A->getValue(), frontend::System, false, 3141 !A->getOption().matches(OPT_iwithsysroot)); 3142 for (const auto *A : Args.filtered(OPT_iframework)) 3143 Opts.AddPath(A->getValue(), frontend::System, true, true); 3144 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3145 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3146 /*IgnoreSysRoot=*/false); 3147 3148 // Add the paths for the various language specific isystem flags. 3149 for (const auto *A : Args.filtered(OPT_c_isystem)) 3150 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3151 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3152 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3153 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3154 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3155 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3156 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3157 3158 // Add the internal paths from a driver that detects standard include paths. 3159 for (const auto *A : 3160 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3161 frontend::IncludeDirGroup Group = frontend::System; 3162 if (A->getOption().matches(OPT_internal_externc_isystem)) 3163 Group = frontend::ExternCSystem; 3164 Opts.AddPath(A->getValue(), Group, false, true); 3165 } 3166 3167 // Add the path prefixes which are implicitly treated as being system headers. 3168 for (const auto *A : 3169 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3170 Opts.AddSystemHeaderPrefix( 3171 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3172 3173 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3174 Opts.AddVFSOverlayFile(A->getValue()); 3175 3176 return Diags.getNumErrors() == NumErrorsBefore; 3177 } 3178 3179 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3180 const llvm::Triple &T, 3181 std::vector<std::string> &Includes, 3182 LangStandard::Kind LangStd) { 3183 // Set some properties which depend solely on the input kind; it would be nice 3184 // to move these to the language standard, and have the driver resolve the 3185 // input kind + language standard. 3186 // 3187 // FIXME: Perhaps a better model would be for a single source file to have 3188 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3189 // simultaneously active? 3190 if (IK.getLanguage() == Language::Asm) { 3191 Opts.AsmPreprocessor = 1; 3192 } else if (IK.isObjectiveC()) { 3193 Opts.ObjC = 1; 3194 } 3195 3196 if (LangStd == LangStandard::lang_unspecified) { 3197 // Based on the base language, pick one. 3198 switch (IK.getLanguage()) { 3199 case Language::Unknown: 3200 case Language::LLVM_IR: 3201 llvm_unreachable("Invalid input kind!"); 3202 case Language::OpenCL: 3203 LangStd = LangStandard::lang_opencl12; 3204 break; 3205 case Language::OpenCLCXX: 3206 LangStd = LangStandard::lang_openclcpp10; 3207 break; 3208 case Language::CUDA: 3209 LangStd = LangStandard::lang_cuda; 3210 break; 3211 case Language::Asm: 3212 case Language::C: 3213 #if defined(CLANG_DEFAULT_STD_C) 3214 LangStd = CLANG_DEFAULT_STD_C; 3215 #else 3216 // The PS4 uses C99 as the default C standard. 3217 if (T.isPS4()) 3218 LangStd = LangStandard::lang_gnu99; 3219 else 3220 LangStd = LangStandard::lang_gnu17; 3221 #endif 3222 break; 3223 case Language::ObjC: 3224 #if defined(CLANG_DEFAULT_STD_C) 3225 LangStd = CLANG_DEFAULT_STD_C; 3226 #else 3227 LangStd = LangStandard::lang_gnu11; 3228 #endif 3229 break; 3230 case Language::CXX: 3231 case Language::ObjCXX: 3232 #if defined(CLANG_DEFAULT_STD_CXX) 3233 LangStd = CLANG_DEFAULT_STD_CXX; 3234 #else 3235 LangStd = LangStandard::lang_gnucxx14; 3236 #endif 3237 break; 3238 case Language::RenderScript: 3239 LangStd = LangStandard::lang_c99; 3240 break; 3241 case Language::HIP: 3242 LangStd = LangStandard::lang_hip; 3243 break; 3244 case Language::HLSL: 3245 LangStd = LangStandard::lang_hlsl2021; 3246 break; 3247 } 3248 } 3249 3250 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3251 Opts.LangStd = LangStd; 3252 Opts.LineComment = Std.hasLineComments(); 3253 Opts.C99 = Std.isC99(); 3254 Opts.C11 = Std.isC11(); 3255 Opts.C17 = Std.isC17(); 3256 Opts.C2x = Std.isC2x(); 3257 Opts.CPlusPlus = Std.isCPlusPlus(); 3258 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3259 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3260 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3261 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3262 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3263 Opts.GNUMode = Std.isGNUMode(); 3264 Opts.GNUCVersion = 0; 3265 Opts.HexFloats = Std.hasHexFloats(); 3266 Opts.ImplicitInt = Std.hasImplicitInt(); 3267 Opts.WChar = Std.isCPlusPlus(); 3268 Opts.Digraphs = Std.hasDigraphs(); 3269 3270 Opts.HLSL = IK.getLanguage() == Language::HLSL; 3271 3272 // Set OpenCL Version. 3273 Opts.OpenCL = Std.isOpenCL(); 3274 if (LangStd == LangStandard::lang_opencl10) 3275 Opts.OpenCLVersion = 100; 3276 else if (LangStd == LangStandard::lang_opencl11) 3277 Opts.OpenCLVersion = 110; 3278 else if (LangStd == LangStandard::lang_opencl12) 3279 Opts.OpenCLVersion = 120; 3280 else if (LangStd == LangStandard::lang_opencl20) 3281 Opts.OpenCLVersion = 200; 3282 else if (LangStd == LangStandard::lang_opencl30) 3283 Opts.OpenCLVersion = 300; 3284 else if (LangStd == LangStandard::lang_openclcpp10) 3285 Opts.OpenCLCPlusPlusVersion = 100; 3286 else if (LangStd == LangStandard::lang_openclcpp2021) 3287 Opts.OpenCLCPlusPlusVersion = 202100; 3288 else if (LangStd == LangStandard::lang_hlsl2015) 3289 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2015; 3290 else if (LangStd == LangStandard::lang_hlsl2016) 3291 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2016; 3292 else if (LangStd == LangStandard::lang_hlsl2017) 3293 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2017; 3294 else if (LangStd == LangStandard::lang_hlsl2018) 3295 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2018; 3296 else if (LangStd == LangStandard::lang_hlsl2021) 3297 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2021; 3298 else if (LangStd == LangStandard::lang_hlsl202x) 3299 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_202x; 3300 3301 // OpenCL has some additional defaults. 3302 if (Opts.OpenCL) { 3303 Opts.AltiVec = 0; 3304 Opts.ZVector = 0; 3305 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3306 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3307 Opts.OpenCLPipes = Opts.getOpenCLCompatibleVersion() == 200; 3308 Opts.OpenCLGenericAddressSpace = Opts.getOpenCLCompatibleVersion() == 200; 3309 3310 // Include default header file for OpenCL. 3311 if (Opts.IncludeDefaultHeader) { 3312 if (Opts.DeclareOpenCLBuiltins) { 3313 // Only include base header file for builtin types and constants. 3314 Includes.push_back("opencl-c-base.h"); 3315 } else { 3316 Includes.push_back("opencl-c.h"); 3317 } 3318 } 3319 } 3320 3321 Opts.HIP = IK.getLanguage() == Language::HIP; 3322 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3323 if (Opts.HIP) { 3324 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3325 // fuses multiplication/addition instructions without contract flag from 3326 // device library functions in LLVM bitcode, which causes accuracy loss in 3327 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3328 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3329 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3330 // FP contract option is used to allow fuse across statements in frontend 3331 // whereas respecting contract flag in backend. 3332 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3333 } else if (Opts.CUDA) { 3334 if (T.isSPIRV()) { 3335 // Emit OpenCL version metadata in LLVM IR when targeting SPIR-V. 3336 Opts.OpenCLVersion = 200; 3337 } 3338 // Allow fuse across statements disregarding pragmas. 3339 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3340 } 3341 3342 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3343 3344 // OpenCL, C++ and C2x have bool, true, false keywords. 3345 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus || Opts.C2x; 3346 3347 // OpenCL has half keyword 3348 Opts.Half = Opts.OpenCL; 3349 } 3350 3351 /// Check if input file kind and language standard are compatible. 3352 static bool IsInputCompatibleWithStandard(InputKind IK, 3353 const LangStandard &S) { 3354 switch (IK.getLanguage()) { 3355 case Language::Unknown: 3356 case Language::LLVM_IR: 3357 llvm_unreachable("should not parse language flags for this input"); 3358 3359 case Language::C: 3360 case Language::ObjC: 3361 case Language::RenderScript: 3362 return S.getLanguage() == Language::C; 3363 3364 case Language::OpenCL: 3365 return S.getLanguage() == Language::OpenCL || 3366 S.getLanguage() == Language::OpenCLCXX; 3367 3368 case Language::OpenCLCXX: 3369 return S.getLanguage() == Language::OpenCLCXX; 3370 3371 case Language::CXX: 3372 case Language::ObjCXX: 3373 return S.getLanguage() == Language::CXX; 3374 3375 case Language::CUDA: 3376 // FIXME: What -std= values should be permitted for CUDA compilations? 3377 return S.getLanguage() == Language::CUDA || 3378 S.getLanguage() == Language::CXX; 3379 3380 case Language::HIP: 3381 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3382 3383 case Language::Asm: 3384 // Accept (and ignore) all -std= values. 3385 // FIXME: The -std= value is not ignored; it affects the tokenization 3386 // and preprocessing rules if we're preprocessing this asm input. 3387 return true; 3388 3389 case Language::HLSL: 3390 return S.getLanguage() == Language::HLSL; 3391 } 3392 3393 llvm_unreachable("unexpected input language"); 3394 } 3395 3396 /// Get language name for given input kind. 3397 static StringRef GetInputKindName(InputKind IK) { 3398 switch (IK.getLanguage()) { 3399 case Language::C: 3400 return "C"; 3401 case Language::ObjC: 3402 return "Objective-C"; 3403 case Language::CXX: 3404 return "C++"; 3405 case Language::ObjCXX: 3406 return "Objective-C++"; 3407 case Language::OpenCL: 3408 return "OpenCL"; 3409 case Language::OpenCLCXX: 3410 return "C++ for OpenCL"; 3411 case Language::CUDA: 3412 return "CUDA"; 3413 case Language::RenderScript: 3414 return "RenderScript"; 3415 case Language::HIP: 3416 return "HIP"; 3417 3418 case Language::Asm: 3419 return "Asm"; 3420 case Language::LLVM_IR: 3421 return "LLVM IR"; 3422 3423 case Language::HLSL: 3424 return "HLSL"; 3425 3426 case Language::Unknown: 3427 break; 3428 } 3429 llvm_unreachable("unknown input language"); 3430 } 3431 3432 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3433 SmallVectorImpl<const char *> &Args, 3434 StringAllocator SA, 3435 const llvm::Triple &T, InputKind IK) { 3436 if (IK.getFormat() == InputKind::Precompiled || 3437 IK.getLanguage() == Language::LLVM_IR) { 3438 if (Opts.ObjCAutoRefCount) 3439 GenerateArg(Args, OPT_fobjc_arc, SA); 3440 if (Opts.PICLevel != 0) 3441 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3442 if (Opts.PIE) 3443 GenerateArg(Args, OPT_pic_is_pie, SA); 3444 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3445 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3446 3447 return; 3448 } 3449 3450 OptSpecifier StdOpt; 3451 switch (Opts.LangStd) { 3452 case LangStandard::lang_opencl10: 3453 case LangStandard::lang_opencl11: 3454 case LangStandard::lang_opencl12: 3455 case LangStandard::lang_opencl20: 3456 case LangStandard::lang_opencl30: 3457 case LangStandard::lang_openclcpp10: 3458 case LangStandard::lang_openclcpp2021: 3459 StdOpt = OPT_cl_std_EQ; 3460 break; 3461 default: 3462 StdOpt = OPT_std_EQ; 3463 break; 3464 } 3465 3466 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3467 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3468 3469 if (Opts.IncludeDefaultHeader) 3470 GenerateArg(Args, OPT_finclude_default_header, SA); 3471 if (Opts.DeclareOpenCLBuiltins) 3472 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3473 3474 const LangOptions *LangOpts = &Opts; 3475 3476 #define LANG_OPTION_WITH_MARSHALLING( \ 3477 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3478 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3479 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3480 MERGER, EXTRACTOR, TABLE_INDEX) \ 3481 GENERATE_OPTION_WITH_MARSHALLING( \ 3482 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3483 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3484 #include "clang/Driver/Options.inc" 3485 #undef LANG_OPTION_WITH_MARSHALLING 3486 3487 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3488 3489 if (Opts.ObjC) { 3490 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3491 3492 if (Opts.GC == LangOptions::GCOnly) 3493 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3494 else if (Opts.GC == LangOptions::HybridGC) 3495 GenerateArg(Args, OPT_fobjc_gc, SA); 3496 else if (Opts.ObjCAutoRefCount == 1) 3497 GenerateArg(Args, OPT_fobjc_arc, SA); 3498 3499 if (Opts.ObjCWeakRuntime) 3500 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3501 3502 if (Opts.ObjCWeak) 3503 GenerateArg(Args, OPT_fobjc_weak, SA); 3504 3505 if (Opts.ObjCSubscriptingLegacyRuntime) 3506 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3507 } 3508 3509 if (Opts.GNUCVersion != 0) { 3510 unsigned Major = Opts.GNUCVersion / 100 / 100; 3511 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3512 unsigned Patch = Opts.GNUCVersion % 100; 3513 GenerateArg(Args, OPT_fgnuc_version_EQ, 3514 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3515 } 3516 3517 if (Opts.IgnoreXCOFFVisibility) 3518 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3519 3520 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3521 GenerateArg(Args, OPT_ftrapv, SA); 3522 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3523 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3524 GenerateArg(Args, OPT_fwrapv, SA); 3525 } 3526 3527 if (Opts.MSCompatibilityVersion != 0) { 3528 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3529 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3530 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3531 GenerateArg(Args, OPT_fms_compatibility_version, 3532 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3533 } 3534 3535 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3536 if (!Opts.Trigraphs) 3537 GenerateArg(Args, OPT_fno_trigraphs, SA); 3538 } else { 3539 if (Opts.Trigraphs) 3540 GenerateArg(Args, OPT_ftrigraphs, SA); 3541 } 3542 3543 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3544 GenerateArg(Args, OPT_fblocks, SA); 3545 3546 if (Opts.ConvergentFunctions && 3547 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3548 GenerateArg(Args, OPT_fconvergent_functions, SA); 3549 3550 if (Opts.NoBuiltin && !Opts.Freestanding) 3551 GenerateArg(Args, OPT_fno_builtin, SA); 3552 3553 if (!Opts.NoBuiltin) 3554 for (const auto &Func : Opts.NoBuiltinFuncs) 3555 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3556 3557 if (Opts.LongDoubleSize == 128) 3558 GenerateArg(Args, OPT_mlong_double_128, SA); 3559 else if (Opts.LongDoubleSize == 64) 3560 GenerateArg(Args, OPT_mlong_double_64, SA); 3561 else if (Opts.LongDoubleSize == 80) 3562 GenerateArg(Args, OPT_mlong_double_80, SA); 3563 3564 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3565 3566 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3567 // '-fopenmp-targets='. 3568 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3569 GenerateArg(Args, OPT_fopenmp, SA); 3570 3571 if (Opts.OpenMP != 50) 3572 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3573 3574 if (!Opts.OpenMPUseTLS) 3575 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3576 3577 if (Opts.OpenMPIsDevice) 3578 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3579 3580 if (Opts.OpenMPIRBuilder) 3581 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3582 } 3583 3584 if (Opts.OpenMPSimd) { 3585 GenerateArg(Args, OPT_fopenmp_simd, SA); 3586 3587 if (Opts.OpenMP != 50) 3588 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3589 } 3590 3591 if (Opts.OpenMPThreadSubscription) 3592 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3593 3594 if (Opts.OpenMPTeamSubscription) 3595 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3596 3597 if (Opts.OpenMPTargetDebug != 0) 3598 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3599 Twine(Opts.OpenMPTargetDebug), SA); 3600 3601 if (Opts.OpenMPCUDANumSMs != 0) 3602 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3603 Twine(Opts.OpenMPCUDANumSMs), SA); 3604 3605 if (Opts.OpenMPCUDABlocksPerSM != 0) 3606 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3607 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3608 3609 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3610 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3611 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3612 3613 if (!Opts.OMPTargetTriples.empty()) { 3614 std::string Targets; 3615 llvm::raw_string_ostream OS(Targets); 3616 llvm::interleave( 3617 Opts.OMPTargetTriples, OS, 3618 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3619 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3620 } 3621 3622 if (!Opts.OMPHostIRFile.empty()) 3623 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3624 3625 if (Opts.OpenMPCUDAMode) 3626 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3627 3628 if (Opts.OpenMPCUDAForceFullRuntime) 3629 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3630 3631 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3632 // generated from CodeGenOptions. 3633 3634 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3635 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3636 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3637 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3638 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3639 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3640 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3641 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3642 3643 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3644 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3645 3646 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3647 for (const std::string &F : Opts.NoSanitizeFiles) 3648 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3649 3650 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3651 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3652 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3653 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3654 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3655 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3656 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3657 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3658 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3659 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3660 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3661 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3662 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3663 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3664 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver13) 3665 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "13.0", SA); 3666 3667 if (Opts.getSignReturnAddressScope() == 3668 LangOptions::SignReturnAddressScopeKind::All) 3669 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3670 else if (Opts.getSignReturnAddressScope() == 3671 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3672 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3673 3674 if (Opts.getSignReturnAddressKey() == 3675 LangOptions::SignReturnAddressKeyKind::BKey) 3676 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3677 3678 if (Opts.CXXABI) 3679 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3680 SA); 3681 3682 if (Opts.RelativeCXXABIVTables) 3683 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3684 else 3685 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3686 3687 for (const auto &MP : Opts.MacroPrefixMap) 3688 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3689 3690 if (!Opts.RandstructSeed.empty()) 3691 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3692 } 3693 3694 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3695 InputKind IK, const llvm::Triple &T, 3696 std::vector<std::string> &Includes, 3697 DiagnosticsEngine &Diags) { 3698 unsigned NumErrorsBefore = Diags.getNumErrors(); 3699 3700 if (IK.getFormat() == InputKind::Precompiled || 3701 IK.getLanguage() == Language::LLVM_IR) { 3702 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3703 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3704 // what the input type is. 3705 if (Args.hasArg(OPT_fobjc_arc)) 3706 Opts.ObjCAutoRefCount = 1; 3707 // PICLevel and PIELevel are needed during code generation and this should 3708 // be set regardless of the input type. 3709 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3710 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3711 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3712 Diags, Opts.Sanitize); 3713 3714 return Diags.getNumErrors() == NumErrorsBefore; 3715 } 3716 3717 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3718 // FIXME: Should we really be parsing this for an Language::Asm input? 3719 3720 // FIXME: Cleanup per-file based stuff. 3721 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3722 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3723 LangStd = LangStandard::getLangKind(A->getValue()); 3724 if (LangStd == LangStandard::lang_unspecified) { 3725 Diags.Report(diag::err_drv_invalid_value) 3726 << A->getAsString(Args) << A->getValue(); 3727 // Report supported standards with short description. 3728 for (unsigned KindValue = 0; 3729 KindValue != LangStandard::lang_unspecified; 3730 ++KindValue) { 3731 const LangStandard &Std = LangStandard::getLangStandardForKind( 3732 static_cast<LangStandard::Kind>(KindValue)); 3733 if (IsInputCompatibleWithStandard(IK, Std)) { 3734 auto Diag = Diags.Report(diag::note_drv_use_standard); 3735 Diag << Std.getName() << Std.getDescription(); 3736 unsigned NumAliases = 0; 3737 #define LANGSTANDARD(id, name, lang, desc, features) 3738 #define LANGSTANDARD_ALIAS(id, alias) \ 3739 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3740 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3741 #include "clang/Basic/LangStandards.def" 3742 Diag << NumAliases; 3743 #define LANGSTANDARD(id, name, lang, desc, features) 3744 #define LANGSTANDARD_ALIAS(id, alias) \ 3745 if (KindValue == LangStandard::lang_##id) Diag << alias; 3746 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3747 #include "clang/Basic/LangStandards.def" 3748 } 3749 } 3750 } else { 3751 // Valid standard, check to make sure language and standard are 3752 // compatible. 3753 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3754 if (!IsInputCompatibleWithStandard(IK, Std)) { 3755 Diags.Report(diag::err_drv_argument_not_allowed_with) 3756 << A->getAsString(Args) << GetInputKindName(IK); 3757 } 3758 } 3759 } 3760 3761 // -cl-std only applies for OpenCL language standards. 3762 // Override the -std option in this case. 3763 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3764 LangStandard::Kind OpenCLLangStd 3765 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3766 .Cases("cl", "CL", LangStandard::lang_opencl10) 3767 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3768 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3769 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3770 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3771 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3772 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3773 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3774 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3775 .Default(LangStandard::lang_unspecified); 3776 3777 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3778 Diags.Report(diag::err_drv_invalid_value) 3779 << A->getAsString(Args) << A->getValue(); 3780 } 3781 else 3782 LangStd = OpenCLLangStd; 3783 } 3784 3785 // These need to be parsed now. They are used to set OpenCL defaults. 3786 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3787 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3788 3789 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3790 3791 // The key paths of codegen options defined in Options.td start with 3792 // "LangOpts->". Let's provide the expected variable name and type. 3793 LangOptions *LangOpts = &Opts; 3794 3795 #define LANG_OPTION_WITH_MARSHALLING( \ 3796 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3797 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3798 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3799 MERGER, EXTRACTOR, TABLE_INDEX) \ 3800 PARSE_OPTION_WITH_MARSHALLING( \ 3801 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3802 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3803 #include "clang/Driver/Options.inc" 3804 #undef LANG_OPTION_WITH_MARSHALLING 3805 3806 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3807 StringRef Name = A->getValue(); 3808 if (Name == "full" || Name == "branch") { 3809 Opts.CFProtectionBranch = 1; 3810 } 3811 } 3812 3813 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3814 !Args.hasArg(OPT_sycl_std_EQ)) { 3815 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3816 // provide -sycl-std=, we want to default it to whatever the default SYCL 3817 // version is. I could not find a way to express this with the options 3818 // tablegen because we still want this value to be SYCL_None when the user 3819 // is not in device or host mode. 3820 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3821 } 3822 3823 if (Opts.ObjC) { 3824 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3825 StringRef value = arg->getValue(); 3826 if (Opts.ObjCRuntime.tryParse(value)) 3827 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3828 } 3829 3830 if (Args.hasArg(OPT_fobjc_gc_only)) 3831 Opts.setGC(LangOptions::GCOnly); 3832 else if (Args.hasArg(OPT_fobjc_gc)) 3833 Opts.setGC(LangOptions::HybridGC); 3834 else if (Args.hasArg(OPT_fobjc_arc)) { 3835 Opts.ObjCAutoRefCount = 1; 3836 if (!Opts.ObjCRuntime.allowsARC()) 3837 Diags.Report(diag::err_arc_unsupported_on_runtime); 3838 } 3839 3840 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3841 // whether the feature is actually enabled. This is predominantly 3842 // determined by -fobjc-runtime, but we allow it to be overridden 3843 // from the command line for testing purposes. 3844 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3845 Opts.ObjCWeakRuntime = 1; 3846 else 3847 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3848 3849 // ObjCWeak determines whether __weak is actually enabled. 3850 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3851 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3852 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3853 assert(!Opts.ObjCWeak); 3854 } else if (Opts.getGC() != LangOptions::NonGC) { 3855 Diags.Report(diag::err_objc_weak_with_gc); 3856 } else if (!Opts.ObjCWeakRuntime) { 3857 Diags.Report(diag::err_objc_weak_unsupported); 3858 } else { 3859 Opts.ObjCWeak = 1; 3860 } 3861 } else if (Opts.ObjCAutoRefCount) { 3862 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3863 } 3864 3865 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3866 Opts.ObjCSubscriptingLegacyRuntime = 3867 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3868 } 3869 3870 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3871 // Check that the version has 1 to 3 components and the minor and patch 3872 // versions fit in two decimal digits. 3873 VersionTuple GNUCVer; 3874 bool Invalid = GNUCVer.tryParse(A->getValue()); 3875 unsigned Major = GNUCVer.getMajor(); 3876 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3877 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3878 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3879 Diags.Report(diag::err_drv_invalid_value) 3880 << A->getAsString(Args) << A->getValue(); 3881 } 3882 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3883 } 3884 3885 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3886 // no -fvisibility=* option. 3887 // This is the reason why '-fvisibility' needs to be always generated: 3888 // its absence implies '-mignore-xcoff-visibility'. 3889 // 3890 // Suppose the original cc1 command line does contain '-fvisibility default': 3891 // '-mignore-xcoff-visibility' should not be implied. 3892 // * If '-fvisibility' is not generated (as most options with default values 3893 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3894 // the command line semantics. 3895 // * If '-fvisibility' is generated regardless of its presence and value, 3896 // '-mignore-xcoff-visibility' won't be implied and the command line 3897 // semantics are kept intact. 3898 // 3899 // When the original cc1 command line does **not** contain '-fvisibility', 3900 // '-mignore-xcoff-visibility' is implied. The generated command line will 3901 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3902 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3903 // produce the same arguments. 3904 3905 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3906 !Args.hasArg(OPT_fvisibility))) 3907 Opts.IgnoreXCOFFVisibility = 1; 3908 3909 if (Args.hasArg(OPT_ftrapv)) { 3910 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3911 // Set the handler, if one is specified. 3912 Opts.OverflowHandler = 3913 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3914 } 3915 else if (Args.hasArg(OPT_fwrapv)) 3916 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3917 3918 Opts.MSCompatibilityVersion = 0; 3919 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3920 VersionTuple VT; 3921 if (VT.tryParse(A->getValue())) 3922 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3923 << A->getValue(); 3924 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3925 VT.getMinor().getValueOr(0) * 100000 + 3926 VT.getSubminor().getValueOr(0); 3927 } 3928 3929 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3930 // is specified, or -std is set to a conforming mode. 3931 // Trigraphs are disabled by default in c++1z onwards. 3932 // For z/OS, trigraphs are enabled by default (without regard to the above). 3933 Opts.Trigraphs = 3934 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3935 Opts.Trigraphs = 3936 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3937 3938 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3939 && Opts.OpenCLVersion == 200); 3940 3941 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3942 Opts.SYCLIsDevice || 3943 Args.hasArg(OPT_fconvergent_functions); 3944 3945 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3946 if (!Opts.NoBuiltin) 3947 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3948 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3949 if (A->getOption().matches(options::OPT_mlong_double_64)) 3950 Opts.LongDoubleSize = 64; 3951 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3952 Opts.LongDoubleSize = 80; 3953 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3954 Opts.LongDoubleSize = 128; 3955 else 3956 Opts.LongDoubleSize = 0; 3957 } 3958 if (Opts.FastRelaxedMath) 3959 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3960 3961 llvm::sort(Opts.ModuleFeatures); 3962 3963 // -mrtd option 3964 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3965 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3966 Diags.Report(diag::err_drv_argument_not_allowed_with) 3967 << A->getSpelling() << "-fdefault-calling-conv"; 3968 else { 3969 if (T.getArch() != llvm::Triple::x86) 3970 Diags.Report(diag::err_drv_argument_not_allowed_with) 3971 << A->getSpelling() << T.getTriple(); 3972 else 3973 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3974 } 3975 } 3976 3977 // Check if -fopenmp is specified and set default version to 5.0. 3978 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3979 // Check if -fopenmp-simd is specified. 3980 bool IsSimdSpecified = 3981 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3982 /*Default=*/false); 3983 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3984 Opts.OpenMPUseTLS = 3985 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3986 Opts.OpenMPIsDevice = 3987 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3988 Opts.OpenMPIRBuilder = 3989 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3990 bool IsTargetSpecified = 3991 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3992 3993 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3994 3995 if (Opts.OpenMP || Opts.OpenMPSimd) { 3996 if (int Version = getLastArgIntValue( 3997 Args, OPT_fopenmp_version_EQ, 3998 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3999 Opts.OpenMP = Version; 4000 // Provide diagnostic when a given target is not expected to be an OpenMP 4001 // device or host. 4002 if (!Opts.OpenMPIsDevice) { 4003 switch (T.getArch()) { 4004 default: 4005 break; 4006 // Add unsupported host targets here: 4007 case llvm::Triple::nvptx: 4008 case llvm::Triple::nvptx64: 4009 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 4010 break; 4011 } 4012 } 4013 } 4014 4015 // Set the flag to prevent the implementation from emitting device exception 4016 // handling code for those requiring so. 4017 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 4018 Opts.OpenCLCPlusPlus) { 4019 4020 Opts.Exceptions = 0; 4021 Opts.CXXExceptions = 0; 4022 } 4023 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 4024 Opts.OpenMPCUDANumSMs = 4025 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 4026 Opts.OpenMPCUDANumSMs, Diags); 4027 Opts.OpenMPCUDABlocksPerSM = 4028 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 4029 Opts.OpenMPCUDABlocksPerSM, Diags); 4030 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 4031 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 4032 Opts.OpenMPCUDAReductionBufNum, Diags); 4033 } 4034 4035 // Set the value of the debugging flag used in the new offloading device RTL. 4036 // Set either by a specific value or to a default if not specified. 4037 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 4038 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 4039 Opts.OpenMPTargetDebug = getLastArgIntValue( 4040 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 4041 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 4042 Opts.OpenMPTargetDebug = 1; 4043 } 4044 4045 if (Opts.OpenMPIsDevice) { 4046 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 4047 Opts.OpenMPTeamSubscription = true; 4048 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 4049 Opts.OpenMPThreadSubscription = true; 4050 } 4051 4052 // Get the OpenMP target triples if any. 4053 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 4054 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 4055 auto getArchPtrSize = [](const llvm::Triple &T) { 4056 if (T.isArch16Bit()) 4057 return Arch16Bit; 4058 if (T.isArch32Bit()) 4059 return Arch32Bit; 4060 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 4061 return Arch64Bit; 4062 }; 4063 4064 for (unsigned i = 0; i < A->getNumValues(); ++i) { 4065 llvm::Triple TT(A->getValue(i)); 4066 4067 if (TT.getArch() == llvm::Triple::UnknownArch || 4068 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4069 TT.getArch() == llvm::Triple::nvptx || 4070 TT.getArch() == llvm::Triple::nvptx64 || 4071 TT.getArch() == llvm::Triple::amdgcn || 4072 TT.getArch() == llvm::Triple::x86 || 4073 TT.getArch() == llvm::Triple::x86_64)) 4074 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4075 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4076 Diags.Report(diag::err_drv_incompatible_omp_arch) 4077 << A->getValue(i) << T.str(); 4078 else 4079 Opts.OMPTargetTriples.push_back(TT); 4080 } 4081 } 4082 4083 // Get OpenMP host file path if any and report if a non existent file is 4084 // found 4085 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4086 Opts.OMPHostIRFile = A->getValue(); 4087 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4088 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4089 << Opts.OMPHostIRFile; 4090 } 4091 4092 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4093 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 4094 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4095 4096 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4097 Opts.OpenMPCUDAForceFullRuntime = 4098 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 4099 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 4100 4101 // FIXME: Eliminate this dependency. 4102 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4103 OptSize = getOptimizationLevelSize(Args); 4104 Opts.Optimize = Opt != 0; 4105 Opts.OptimizeSize = OptSize != 0; 4106 4107 // This is the __NO_INLINE__ define, which just depends on things like the 4108 // optimization level and -fno-inline, not actually whether the backend has 4109 // inlining enabled. 4110 Opts.NoInlineDefine = !Opts.Optimize; 4111 if (Arg *InlineArg = Args.getLastArg( 4112 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4113 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4114 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4115 Opts.NoInlineDefine = true; 4116 4117 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4118 StringRef Val = A->getValue(); 4119 if (Val == "fast") 4120 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4121 else if (Val == "on") 4122 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4123 else if (Val == "off") 4124 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4125 else if (Val == "fast-honor-pragmas") 4126 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4127 else 4128 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4129 } 4130 4131 // Parse -fsanitize= arguments. 4132 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4133 Diags, Opts.Sanitize); 4134 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4135 std::vector<std::string> systemIgnorelists = 4136 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4137 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4138 systemIgnorelists.begin(), 4139 systemIgnorelists.end()); 4140 4141 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4142 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4143 4144 StringRef Ver = A->getValue(); 4145 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4146 unsigned Major, Minor = 0; 4147 4148 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4149 // y or y.0 (4 <= y <= current version). 4150 if (!VerParts.first.startswith("0") && 4151 !VerParts.first.getAsInteger(10, Major) && 4152 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4153 (Major == 3 ? VerParts.second.size() == 1 && 4154 !VerParts.second.getAsInteger(10, Minor) 4155 : VerParts.first.size() == Ver.size() || 4156 VerParts.second == "0")) { 4157 // Got a valid version number. 4158 if (Major == 3 && Minor <= 8) 4159 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4160 else if (Major <= 4) 4161 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4162 else if (Major <= 6) 4163 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4164 else if (Major <= 7) 4165 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4166 else if (Major <= 9) 4167 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4168 else if (Major <= 11) 4169 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4170 else if (Major <= 12) 4171 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4172 else if (Major <= 13) 4173 Opts.setClangABICompat(LangOptions::ClangABI::Ver13); 4174 } else if (Ver != "latest") { 4175 Diags.Report(diag::err_drv_invalid_value) 4176 << A->getAsString(Args) << A->getValue(); 4177 } 4178 } 4179 4180 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4181 StringRef SignScope = A->getValue(); 4182 4183 if (SignScope.equals_insensitive("none")) 4184 Opts.setSignReturnAddressScope( 4185 LangOptions::SignReturnAddressScopeKind::None); 4186 else if (SignScope.equals_insensitive("all")) 4187 Opts.setSignReturnAddressScope( 4188 LangOptions::SignReturnAddressScopeKind::All); 4189 else if (SignScope.equals_insensitive("non-leaf")) 4190 Opts.setSignReturnAddressScope( 4191 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4192 else 4193 Diags.Report(diag::err_drv_invalid_value) 4194 << A->getAsString(Args) << SignScope; 4195 4196 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4197 StringRef SignKey = A->getValue(); 4198 if (!SignScope.empty() && !SignKey.empty()) { 4199 if (SignKey.equals_insensitive("a_key")) 4200 Opts.setSignReturnAddressKey( 4201 LangOptions::SignReturnAddressKeyKind::AKey); 4202 else if (SignKey.equals_insensitive("b_key")) 4203 Opts.setSignReturnAddressKey( 4204 LangOptions::SignReturnAddressKeyKind::BKey); 4205 else 4206 Diags.Report(diag::err_drv_invalid_value) 4207 << A->getAsString(Args) << SignKey; 4208 } 4209 } 4210 } 4211 4212 // The value can be empty, which indicates the system default should be used. 4213 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4214 if (!CXXABI.empty()) { 4215 if (!TargetCXXABI::isABI(CXXABI)) { 4216 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4217 } else { 4218 auto Kind = TargetCXXABI::getKind(CXXABI); 4219 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4220 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4221 else 4222 Opts.CXXABI = Kind; 4223 } 4224 } 4225 4226 Opts.RelativeCXXABIVTables = 4227 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4228 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4229 TargetCXXABI::usesRelativeVTables(T)); 4230 4231 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4232 auto Split = StringRef(A).split('='); 4233 Opts.MacroPrefixMap.insert( 4234 {std::string(Split.first), std::string(Split.second)}); 4235 } 4236 4237 // Error if -mvscale-min is unbounded. 4238 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4239 unsigned VScaleMin; 4240 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4241 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4242 } 4243 4244 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4245 std::ifstream SeedFile(A->getValue(0)); 4246 4247 if (!SeedFile.is_open()) 4248 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4249 << A->getValue(0); 4250 4251 std::getline(SeedFile, Opts.RandstructSeed); 4252 } 4253 4254 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4255 Opts.RandstructSeed = A->getValue(0); 4256 4257 return Diags.getNumErrors() == NumErrorsBefore; 4258 } 4259 4260 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4261 switch (Action) { 4262 case frontend::ASTDeclList: 4263 case frontend::ASTDump: 4264 case frontend::ASTPrint: 4265 case frontend::ASTView: 4266 case frontend::EmitAssembly: 4267 case frontend::EmitBC: 4268 case frontend::EmitHTML: 4269 case frontend::EmitLLVM: 4270 case frontend::EmitLLVMOnly: 4271 case frontend::EmitCodeGenOnly: 4272 case frontend::EmitObj: 4273 case frontend::ExtractAPI: 4274 case frontend::FixIt: 4275 case frontend::GenerateModule: 4276 case frontend::GenerateModuleInterface: 4277 case frontend::GenerateHeaderModule: 4278 case frontend::GenerateHeaderUnit: 4279 case frontend::GeneratePCH: 4280 case frontend::GenerateInterfaceStubs: 4281 case frontend::ParseSyntaxOnly: 4282 case frontend::ModuleFileInfo: 4283 case frontend::VerifyPCH: 4284 case frontend::PluginAction: 4285 case frontend::RewriteObjC: 4286 case frontend::RewriteTest: 4287 case frontend::RunAnalysis: 4288 case frontend::TemplightDump: 4289 case frontend::MigrateSource: 4290 return false; 4291 4292 case frontend::DumpCompilerOptions: 4293 case frontend::DumpRawTokens: 4294 case frontend::DumpTokens: 4295 case frontend::InitOnly: 4296 case frontend::PrintPreamble: 4297 case frontend::PrintPreprocessedInput: 4298 case frontend::RewriteMacros: 4299 case frontend::RunPreprocessorOnly: 4300 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4301 return true; 4302 } 4303 llvm_unreachable("invalid frontend action"); 4304 } 4305 4306 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4307 SmallVectorImpl<const char *> &Args, 4308 CompilerInvocation::StringAllocator SA, 4309 const LangOptions &LangOpts, 4310 const FrontendOptions &FrontendOpts, 4311 const CodeGenOptions &CodeGenOpts) { 4312 PreprocessorOptions *PreprocessorOpts = &Opts; 4313 4314 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4315 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4316 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4317 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4318 MERGER, EXTRACTOR, TABLE_INDEX) \ 4319 GENERATE_OPTION_WITH_MARSHALLING( \ 4320 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4321 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4322 #include "clang/Driver/Options.inc" 4323 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4324 4325 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4326 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4327 4328 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4329 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4330 4331 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4332 GenerateArg(Args, OPT_preamble_bytes_EQ, 4333 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4334 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4335 SA); 4336 4337 for (const auto &M : Opts.Macros) { 4338 // Don't generate __CET__ macro definitions. They are implied by the 4339 // -fcf-protection option that is generated elsewhere. 4340 if (M.first == "__CET__=1" && !M.second && 4341 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4342 continue; 4343 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4344 !CodeGenOpts.CFProtectionBranch) 4345 continue; 4346 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4347 CodeGenOpts.CFProtectionBranch) 4348 continue; 4349 4350 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4351 } 4352 4353 for (const auto &I : Opts.Includes) { 4354 // Don't generate OpenCL includes. They are implied by other flags that are 4355 // generated elsewhere. 4356 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4357 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4358 I == "opencl-c.h")) 4359 continue; 4360 4361 GenerateArg(Args, OPT_include, I, SA); 4362 } 4363 4364 for (const auto &CI : Opts.ChainedIncludes) 4365 GenerateArg(Args, OPT_chain_include, CI, SA); 4366 4367 for (const auto &RF : Opts.RemappedFiles) 4368 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4369 4370 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4371 // generated elsewhere. 4372 } 4373 4374 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4375 DiagnosticsEngine &Diags, 4376 frontend::ActionKind Action, 4377 const FrontendOptions &FrontendOpts) { 4378 unsigned NumErrorsBefore = Diags.getNumErrors(); 4379 4380 PreprocessorOptions *PreprocessorOpts = &Opts; 4381 4382 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4383 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4384 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4385 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4386 MERGER, EXTRACTOR, TABLE_INDEX) \ 4387 PARSE_OPTION_WITH_MARSHALLING( \ 4388 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4389 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4390 #include "clang/Driver/Options.inc" 4391 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4392 4393 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4394 Args.hasArg(OPT_pch_through_hdrstop_use); 4395 4396 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4397 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4398 4399 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4400 StringRef Value(A->getValue()); 4401 size_t Comma = Value.find(','); 4402 unsigned Bytes = 0; 4403 unsigned EndOfLine = 0; 4404 4405 if (Comma == StringRef::npos || 4406 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4407 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4408 Diags.Report(diag::err_drv_preamble_format); 4409 else { 4410 Opts.PrecompiledPreambleBytes.first = Bytes; 4411 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4412 } 4413 } 4414 4415 // Add the __CET__ macro if a CFProtection option is set. 4416 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4417 StringRef Name = A->getValue(); 4418 if (Name == "branch") 4419 Opts.addMacroDef("__CET__=1"); 4420 else if (Name == "return") 4421 Opts.addMacroDef("__CET__=2"); 4422 else if (Name == "full") 4423 Opts.addMacroDef("__CET__=3"); 4424 } 4425 4426 // Add macros from the command line. 4427 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4428 if (A->getOption().matches(OPT_D)) 4429 Opts.addMacroDef(A->getValue()); 4430 else 4431 Opts.addMacroUndef(A->getValue()); 4432 } 4433 4434 // Add the ordered list of -includes. 4435 for (const auto *A : Args.filtered(OPT_include)) 4436 Opts.Includes.emplace_back(A->getValue()); 4437 4438 for (const auto *A : Args.filtered(OPT_chain_include)) 4439 Opts.ChainedIncludes.emplace_back(A->getValue()); 4440 4441 for (const auto *A : Args.filtered(OPT_remap_file)) { 4442 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4443 4444 if (Split.second.empty()) { 4445 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4446 continue; 4447 } 4448 4449 Opts.addRemappedFile(Split.first, Split.second); 4450 } 4451 4452 // Always avoid lexing editor placeholders when we're just running the 4453 // preprocessor as we never want to emit the 4454 // "editor placeholder in source file" error in PP only mode. 4455 if (isStrictlyPreprocessorAction(Action)) 4456 Opts.LexEditorPlaceholders = false; 4457 4458 return Diags.getNumErrors() == NumErrorsBefore; 4459 } 4460 4461 static void GeneratePreprocessorOutputArgs( 4462 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4463 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4464 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4465 4466 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4467 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4468 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4469 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4470 MERGER, EXTRACTOR, TABLE_INDEX) \ 4471 GENERATE_OPTION_WITH_MARSHALLING( \ 4472 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4473 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4474 #include "clang/Driver/Options.inc" 4475 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4476 4477 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4478 if (Generate_dM) 4479 GenerateArg(Args, OPT_dM, SA); 4480 if (!Generate_dM && Opts.ShowMacros) 4481 GenerateArg(Args, OPT_dD, SA); 4482 if (Opts.DirectivesOnly) 4483 GenerateArg(Args, OPT_fdirectives_only, SA); 4484 } 4485 4486 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4487 ArgList &Args, DiagnosticsEngine &Diags, 4488 frontend::ActionKind Action) { 4489 unsigned NumErrorsBefore = Diags.getNumErrors(); 4490 4491 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4492 4493 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4494 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4495 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4496 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4497 MERGER, EXTRACTOR, TABLE_INDEX) \ 4498 PARSE_OPTION_WITH_MARSHALLING( \ 4499 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4500 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4501 #include "clang/Driver/Options.inc" 4502 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4503 4504 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4505 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4506 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4507 4508 return Diags.getNumErrors() == NumErrorsBefore; 4509 } 4510 4511 static void GenerateTargetArgs(const TargetOptions &Opts, 4512 SmallVectorImpl<const char *> &Args, 4513 CompilerInvocation::StringAllocator SA) { 4514 const TargetOptions *TargetOpts = &Opts; 4515 #define TARGET_OPTION_WITH_MARSHALLING( \ 4516 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4517 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4518 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4519 MERGER, EXTRACTOR, TABLE_INDEX) \ 4520 GENERATE_OPTION_WITH_MARSHALLING( \ 4521 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4522 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4523 #include "clang/Driver/Options.inc" 4524 #undef TARGET_OPTION_WITH_MARSHALLING 4525 4526 if (!Opts.SDKVersion.empty()) 4527 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4528 SA); 4529 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4530 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4531 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4532 } 4533 4534 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4535 DiagnosticsEngine &Diags) { 4536 unsigned NumErrorsBefore = Diags.getNumErrors(); 4537 4538 TargetOptions *TargetOpts = &Opts; 4539 4540 #define TARGET_OPTION_WITH_MARSHALLING( \ 4541 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4542 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4543 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4544 MERGER, EXTRACTOR, TABLE_INDEX) \ 4545 PARSE_OPTION_WITH_MARSHALLING( \ 4546 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4547 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4548 #include "clang/Driver/Options.inc" 4549 #undef TARGET_OPTION_WITH_MARSHALLING 4550 4551 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4552 llvm::VersionTuple Version; 4553 if (Version.tryParse(A->getValue())) 4554 Diags.Report(diag::err_drv_invalid_value) 4555 << A->getAsString(Args) << A->getValue(); 4556 else 4557 Opts.SDKVersion = Version; 4558 } 4559 if (Arg *A = 4560 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4561 llvm::VersionTuple Version; 4562 if (Version.tryParse(A->getValue())) 4563 Diags.Report(diag::err_drv_invalid_value) 4564 << A->getAsString(Args) << A->getValue(); 4565 else 4566 Opts.DarwinTargetVariantSDKVersion = Version; 4567 } 4568 4569 return Diags.getNumErrors() == NumErrorsBefore; 4570 } 4571 4572 bool CompilerInvocation::CreateFromArgsImpl( 4573 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4574 DiagnosticsEngine &Diags, const char *Argv0) { 4575 unsigned NumErrorsBefore = Diags.getNumErrors(); 4576 4577 // Parse the arguments. 4578 const OptTable &Opts = getDriverOptTable(); 4579 const unsigned IncludedFlagsBitmask = options::CC1Option; 4580 unsigned MissingArgIndex, MissingArgCount; 4581 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4582 MissingArgCount, IncludedFlagsBitmask); 4583 LangOptions &LangOpts = *Res.getLangOpts(); 4584 4585 // Check for missing argument error. 4586 if (MissingArgCount) 4587 Diags.Report(diag::err_drv_missing_argument) 4588 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4589 4590 // Issue errors on unknown arguments. 4591 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4592 auto ArgString = A->getAsString(Args); 4593 std::string Nearest; 4594 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4595 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4596 else 4597 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4598 << ArgString << Nearest; 4599 } 4600 4601 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4602 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4603 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4604 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4605 /*DefaultDiagColor=*/false); 4606 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4607 // FIXME: We shouldn't have to pass the DashX option around here 4608 InputKind DashX = Res.getFrontendOpts().DashX; 4609 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4610 llvm::Triple T(Res.getTargetOpts().Triple); 4611 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4612 Res.getFileSystemOpts().WorkingDir); 4613 4614 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4615 Diags); 4616 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4617 LangOpts.ObjCExceptions = 1; 4618 4619 if (LangOpts.CUDA) { 4620 // During CUDA device-side compilation, the aux triple is the 4621 // triple used for host compilation. 4622 if (LangOpts.CUDAIsDevice) 4623 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4624 } 4625 4626 // Set the triple of the host for OpenMP device compile. 4627 if (LangOpts.OpenMPIsDevice) 4628 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4629 4630 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4631 Res.getFrontendOpts().OutputFile, LangOpts); 4632 4633 // FIXME: Override value name discarding when asan or msan is used because the 4634 // backend passes depend on the name of the alloca in order to print out 4635 // names. 4636 Res.getCodeGenOpts().DiscardValueNames &= 4637 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4638 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4639 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4640 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4641 4642 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4643 Res.getFrontendOpts().ProgramAction, 4644 Res.getFrontendOpts()); 4645 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4646 Res.getFrontendOpts().ProgramAction); 4647 4648 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4649 Res.getFrontendOpts().ProgramAction, 4650 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4651 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4652 Res.getDependencyOutputOpts().Targets.empty()) 4653 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4654 4655 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4656 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4657 !Res.getLangOpts()->Sanitize.empty()) { 4658 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4659 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4660 } 4661 4662 // Store the command-line for using in the CodeView backend. 4663 Res.getCodeGenOpts().Argv0 = Argv0; 4664 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4665 4666 FixupInvocation(Res, Diags, Args, DashX); 4667 4668 return Diags.getNumErrors() == NumErrorsBefore; 4669 } 4670 4671 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4672 ArrayRef<const char *> CommandLineArgs, 4673 DiagnosticsEngine &Diags, 4674 const char *Argv0) { 4675 CompilerInvocation DummyInvocation; 4676 4677 return RoundTrip( 4678 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4679 DiagnosticsEngine &Diags, const char *Argv0) { 4680 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4681 }, 4682 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4683 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4684 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4685 } 4686 4687 std::string CompilerInvocation::getModuleHash() const { 4688 // FIXME: Consider using SHA1 instead of MD5. 4689 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4690 4691 // Note: For QoI reasons, the things we use as a hash here should all be 4692 // dumped via the -module-info flag. 4693 4694 // Start the signature with the compiler version. 4695 HBuilder.add(getClangFullRepositoryVersion()); 4696 4697 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4698 // and getClangFullRepositoryVersion() doesn't include git revision. 4699 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4700 4701 // Extend the signature with the language options 4702 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4703 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4704 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4705 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4706 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4707 #include "clang/Basic/LangOptions.def" 4708 4709 HBuilder.addRange(LangOpts->ModuleFeatures); 4710 4711 HBuilder.add(LangOpts->ObjCRuntime); 4712 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4713 4714 // Extend the signature with the target options. 4715 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4716 TargetOpts->ABI); 4717 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4718 4719 // Extend the signature with preprocessor options. 4720 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4721 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4722 4723 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4724 for (const auto &Macro : getPreprocessorOpts().Macros) { 4725 // If we're supposed to ignore this macro for the purposes of modules, 4726 // don't put it into the hash. 4727 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4728 // Check whether we're ignoring this macro. 4729 StringRef MacroDef = Macro.first; 4730 if (hsOpts.ModulesIgnoreMacros.count( 4731 llvm::CachedHashString(MacroDef.split('=').first))) 4732 continue; 4733 } 4734 4735 HBuilder.add(Macro); 4736 } 4737 4738 // Extend the signature with the sysroot and other header search options. 4739 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4740 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4741 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4742 hsOpts.ModulesValidateDiagnosticOptions); 4743 HBuilder.add(hsOpts.ResourceDir); 4744 4745 if (hsOpts.ModulesStrictContextHash) { 4746 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4747 HBuilder.addRange(hsOpts.UserEntries); 4748 4749 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4750 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4751 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4752 HBuilder.add(diagOpts.get##Name()); 4753 #include "clang/Basic/DiagnosticOptions.def" 4754 #undef DIAGOPT 4755 #undef ENUM_DIAGOPT 4756 } 4757 4758 // Extend the signature with the user build path. 4759 HBuilder.add(hsOpts.ModuleUserBuildPath); 4760 4761 // Extend the signature with the module file extensions. 4762 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4763 ext->hashExtension(HBuilder); 4764 4765 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4766 // affects the debug info in the PCM. 4767 if (getCodeGenOpts().DebugTypeExtRefs) 4768 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4769 4770 // Extend the signature with the enabled sanitizers, if at least one is 4771 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4772 SanitizerSet SanHash = LangOpts->Sanitize; 4773 SanHash.clear(getPPTransparentSanitizers()); 4774 if (!SanHash.empty()) 4775 HBuilder.add(SanHash.Mask); 4776 4777 llvm::MD5::MD5Result Result; 4778 HBuilder.getHasher().final(Result); 4779 uint64_t Hash = Result.high() ^ Result.low(); 4780 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4781 } 4782 4783 void CompilerInvocation::generateCC1CommandLine( 4784 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4785 llvm::Triple T(TargetOpts->Triple); 4786 4787 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4788 GenerateMigratorArgs(MigratorOpts, Args, SA); 4789 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4790 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4791 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4792 GenerateTargetArgs(*TargetOpts, Args, SA); 4793 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4794 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4795 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4796 &*LangOpts); 4797 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4798 CodeGenOpts); 4799 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4800 FrontendOpts.ProgramAction); 4801 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4802 } 4803 4804 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4805 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4806 DiagnosticsEngine &Diags) { 4807 return createVFSFromCompilerInvocation(CI, Diags, 4808 llvm::vfs::getRealFileSystem()); 4809 } 4810 4811 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4812 clang::createVFSFromCompilerInvocation( 4813 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4814 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4815 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4816 return BaseFS; 4817 4818 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4819 // earlier vfs files are on the bottom 4820 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4821 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4822 Result->getBufferForFile(File); 4823 if (!Buffer) { 4824 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4825 continue; 4826 } 4827 4828 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4829 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4830 /*DiagContext*/ nullptr, Result); 4831 if (!FS) { 4832 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4833 continue; 4834 } 4835 4836 Result = FS; 4837 } 4838 return Result; 4839 } 4840