1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/HashBuilder.h" 82 #include "llvm/Support/Host.h" 83 #include "llvm/Support/MathExtras.h" 84 #include "llvm/Support/MemoryBuffer.h" 85 #include "llvm/Support/Path.h" 86 #include "llvm/Support/Process.h" 87 #include "llvm/Support/Regex.h" 88 #include "llvm/Support/VersionTuple.h" 89 #include "llvm/Support/VirtualFileSystem.h" 90 #include "llvm/Support/raw_ostream.h" 91 #include "llvm/Target/TargetOptions.h" 92 #include <algorithm> 93 #include <atomic> 94 #include <cassert> 95 #include <cstddef> 96 #include <cstring> 97 #include <fstream> 98 #include <memory> 99 #include <string> 100 #include <tuple> 101 #include <type_traits> 102 #include <utility> 103 #include <vector> 104 105 using namespace clang; 106 using namespace driver; 107 using namespace options; 108 using namespace llvm::opt; 109 110 //===----------------------------------------------------------------------===// 111 // Helpers. 112 //===----------------------------------------------------------------------===// 113 114 // Parse misexpect tolerance argument value. 115 // Valid option values are integers in the range [0, 100) 116 inline Expected<Optional<uint32_t>> parseToleranceOption(StringRef Arg) { 117 uint32_t Val; 118 if (Arg.getAsInteger(10, Val)) 119 return llvm::createStringError(llvm::inconvertibleErrorCode(), 120 "Not an integer: %s", Arg.data()); 121 return Val; 122 } 123 124 //===----------------------------------------------------------------------===// 125 // Initialization. 126 //===----------------------------------------------------------------------===// 127 128 CompilerInvocationRefBase::CompilerInvocationRefBase() 129 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 130 DiagnosticOpts(new DiagnosticOptions()), 131 HeaderSearchOpts(new HeaderSearchOptions()), 132 PreprocessorOpts(new PreprocessorOptions()), 133 AnalyzerOpts(new AnalyzerOptions()) {} 134 135 CompilerInvocationRefBase::CompilerInvocationRefBase( 136 const CompilerInvocationRefBase &X) 137 : LangOpts(new LangOptions(*X.getLangOpts())), 138 TargetOpts(new TargetOptions(X.getTargetOpts())), 139 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 140 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 141 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 142 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 143 144 CompilerInvocationRefBase::CompilerInvocationRefBase( 145 CompilerInvocationRefBase &&X) = default; 146 147 CompilerInvocationRefBase & 148 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 149 LangOpts.swap(X.LangOpts); 150 TargetOpts.swap(X.TargetOpts); 151 DiagnosticOpts.swap(X.DiagnosticOpts); 152 HeaderSearchOpts.swap(X.HeaderSearchOpts); 153 PreprocessorOpts.swap(X.PreprocessorOpts); 154 AnalyzerOpts.swap(X.AnalyzerOpts); 155 return *this; 156 } 157 158 CompilerInvocationRefBase & 159 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 160 161 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 162 163 //===----------------------------------------------------------------------===// 164 // Normalizers 165 //===----------------------------------------------------------------------===// 166 167 #define SIMPLE_ENUM_VALUE_TABLE 168 #include "clang/Driver/Options.inc" 169 #undef SIMPLE_ENUM_VALUE_TABLE 170 171 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 172 unsigned TableIndex, 173 const ArgList &Args, 174 DiagnosticsEngine &Diags) { 175 if (Args.hasArg(Opt)) 176 return true; 177 return None; 178 } 179 180 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 181 const ArgList &Args, 182 DiagnosticsEngine &) { 183 if (Args.hasArg(Opt)) 184 return false; 185 return None; 186 } 187 188 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 189 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 190 /// unnecessary template instantiations and just ignore it with a variadic 191 /// argument. 192 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 193 const char *Spelling, 194 CompilerInvocation::StringAllocator, 195 Option::OptionClass, unsigned, /*T*/...) { 196 Args.push_back(Spelling); 197 } 198 199 template <typename T> static constexpr bool is_uint64_t_convertible() { 200 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 201 } 202 203 template <typename T, 204 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 205 static auto makeFlagToValueNormalizer(T Value) { 206 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 207 DiagnosticsEngine &) -> Optional<T> { 208 if (Args.hasArg(Opt)) 209 return Value; 210 return None; 211 }; 212 } 213 214 template <typename T, 215 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 216 static auto makeFlagToValueNormalizer(T Value) { 217 return makeFlagToValueNormalizer(uint64_t(Value)); 218 } 219 220 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 221 OptSpecifier OtherOpt) { 222 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 223 const ArgList &Args, 224 DiagnosticsEngine &) -> Optional<bool> { 225 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 226 return A->getOption().matches(Opt) ? Value : OtherValue; 227 } 228 return None; 229 }; 230 } 231 232 static auto makeBooleanOptionDenormalizer(bool Value) { 233 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 234 CompilerInvocation::StringAllocator, Option::OptionClass, 235 unsigned, bool KeyPath) { 236 if (KeyPath == Value) 237 Args.push_back(Spelling); 238 }; 239 } 240 241 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 242 const char *Spelling, 243 CompilerInvocation::StringAllocator SA, 244 Option::OptionClass OptClass, unsigned, 245 const Twine &Value) { 246 switch (OptClass) { 247 case Option::SeparateClass: 248 case Option::JoinedOrSeparateClass: 249 case Option::JoinedAndSeparateClass: 250 Args.push_back(Spelling); 251 Args.push_back(SA(Value)); 252 break; 253 case Option::JoinedClass: 254 case Option::CommaJoinedClass: 255 Args.push_back(SA(Twine(Spelling) + Value)); 256 break; 257 default: 258 llvm_unreachable("Cannot denormalize an option with option class " 259 "incompatible with string denormalization."); 260 } 261 } 262 263 template <typename T> 264 static void 265 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 266 CompilerInvocation::StringAllocator SA, 267 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 268 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 269 } 270 271 static Optional<SimpleEnumValue> 272 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 273 for (int I = 0, E = Table.Size; I != E; ++I) 274 if (Name == Table.Table[I].Name) 275 return Table.Table[I]; 276 277 return None; 278 } 279 280 static Optional<SimpleEnumValue> 281 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 282 for (int I = 0, E = Table.Size; I != E; ++I) 283 if (Value == Table.Table[I].Value) 284 return Table.Table[I]; 285 286 return None; 287 } 288 289 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 290 unsigned TableIndex, 291 const ArgList &Args, 292 DiagnosticsEngine &Diags) { 293 assert(TableIndex < SimpleEnumValueTablesSize); 294 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 295 296 auto *Arg = Args.getLastArg(Opt); 297 if (!Arg) 298 return None; 299 300 StringRef ArgValue = Arg->getValue(); 301 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 302 return MaybeEnumVal->Value; 303 304 Diags.Report(diag::err_drv_invalid_value) 305 << Arg->getAsString(Args) << ArgValue; 306 return None; 307 } 308 309 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 310 const char *Spelling, 311 CompilerInvocation::StringAllocator SA, 312 Option::OptionClass OptClass, 313 unsigned TableIndex, unsigned Value) { 314 assert(TableIndex < SimpleEnumValueTablesSize); 315 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 316 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 317 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 318 MaybeEnumVal->Name); 319 } else { 320 llvm_unreachable("The simple enum value was not correctly defined in " 321 "the tablegen option description"); 322 } 323 } 324 325 template <typename T> 326 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 327 const char *Spelling, 328 CompilerInvocation::StringAllocator SA, 329 Option::OptionClass OptClass, 330 unsigned TableIndex, T Value) { 331 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 332 static_cast<unsigned>(Value)); 333 } 334 335 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 336 const ArgList &Args, 337 DiagnosticsEngine &Diags) { 338 auto *Arg = Args.getLastArg(Opt); 339 if (!Arg) 340 return None; 341 return std::string(Arg->getValue()); 342 } 343 344 template <typename IntTy> 345 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 346 const ArgList &Args, 347 DiagnosticsEngine &Diags) { 348 auto *Arg = Args.getLastArg(Opt); 349 if (!Arg) 350 return None; 351 IntTy Res; 352 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 353 Diags.Report(diag::err_drv_invalid_int_value) 354 << Arg->getAsString(Args) << Arg->getValue(); 355 return None; 356 } 357 return Res; 358 } 359 360 static Optional<std::vector<std::string>> 361 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 362 DiagnosticsEngine &) { 363 return Args.getAllArgValues(Opt); 364 } 365 366 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 367 const char *Spelling, 368 CompilerInvocation::StringAllocator SA, 369 Option::OptionClass OptClass, 370 unsigned TableIndex, 371 const std::vector<std::string> &Values) { 372 switch (OptClass) { 373 case Option::CommaJoinedClass: { 374 std::string CommaJoinedValue; 375 if (!Values.empty()) { 376 CommaJoinedValue.append(Values.front()); 377 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 378 CommaJoinedValue.append(","); 379 CommaJoinedValue.append(Value); 380 } 381 } 382 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 383 TableIndex, CommaJoinedValue); 384 break; 385 } 386 case Option::JoinedClass: 387 case Option::SeparateClass: 388 case Option::JoinedOrSeparateClass: 389 for (const std::string &Value : Values) 390 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 391 break; 392 default: 393 llvm_unreachable("Cannot denormalize an option with option class " 394 "incompatible with string vector denormalization."); 395 } 396 } 397 398 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 399 const ArgList &Args, 400 DiagnosticsEngine &Diags) { 401 auto *Arg = Args.getLastArg(Opt); 402 if (!Arg) 403 return None; 404 return llvm::Triple::normalize(Arg->getValue()); 405 } 406 407 template <typename T, typename U> 408 static T mergeForwardValue(T KeyPath, U Value) { 409 return static_cast<T>(Value); 410 } 411 412 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 413 return KeyPath | Value; 414 } 415 416 template <typename T> static T extractForwardValue(T KeyPath) { 417 return KeyPath; 418 } 419 420 template <typename T, typename U, U Value> 421 static T extractMaskValue(T KeyPath) { 422 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 423 } 424 425 #define PARSE_OPTION_WITH_MARSHALLING( \ 426 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 427 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 428 if ((FLAGS)&options::CC1Option) { \ 429 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 430 if (IMPLIED_CHECK) \ 431 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 432 if (SHOULD_PARSE) \ 433 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 434 KEYPATH = \ 435 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 436 } 437 438 // Capture the extracted value as a lambda argument to avoid potential issues 439 // with lifetime extension of the reference. 440 #define GENERATE_OPTION_WITH_MARSHALLING( \ 441 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 442 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 443 TABLE_INDEX) \ 444 if ((FLAGS)&options::CC1Option) { \ 445 [&](const auto &Extracted) { \ 446 if (ALWAYS_EMIT || \ 447 (Extracted != \ 448 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 449 : (DEFAULT_VALUE)))) \ 450 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 451 TABLE_INDEX, Extracted); \ 452 }(EXTRACTOR(KEYPATH)); \ 453 } 454 455 static StringRef GetInputKindName(InputKind IK); 456 457 static bool FixupInvocation(CompilerInvocation &Invocation, 458 DiagnosticsEngine &Diags, const ArgList &Args, 459 InputKind IK) { 460 unsigned NumErrorsBefore = Diags.getNumErrors(); 461 462 LangOptions &LangOpts = *Invocation.getLangOpts(); 463 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 464 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 465 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 466 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 467 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 468 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 469 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 470 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 471 if (FrontendOpts.ShowStats) 472 CodeGenOpts.ClearASTBeforeBackend = false; 473 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 474 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 475 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 476 LangOpts.CurrentModule = LangOpts.ModuleName; 477 478 llvm::Triple T(TargetOpts.Triple); 479 llvm::Triple::ArchType Arch = T.getArch(); 480 481 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 482 483 if (LangOpts.getExceptionHandling() != 484 LangOptions::ExceptionHandlingKind::None && 485 T.isWindowsMSVCEnvironment()) 486 Diags.Report(diag::err_fe_invalid_exception_model) 487 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 488 489 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 490 Diags.Report(diag::warn_c_kext); 491 492 if (Args.hasArg(OPT_fconcepts_ts)) 493 Diags.Report(diag::warn_fe_concepts_ts_flag); 494 495 if (LangOpts.NewAlignOverride && 496 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 497 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 498 Diags.Report(diag::err_fe_invalid_alignment) 499 << A->getAsString(Args) << A->getValue(); 500 LangOpts.NewAlignOverride = 0; 501 } 502 503 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 504 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 505 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 506 << "-fsycl-is-host"; 507 508 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 509 Diags.Report(diag::err_drv_argument_not_allowed_with) 510 << "-fgnu89-inline" << GetInputKindName(IK); 511 512 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 513 Diags.Report(diag::err_drv_argument_not_allowed_with) 514 << "-hlsl-entry" << GetInputKindName(IK); 515 516 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 517 Diags.Report(diag::warn_ignored_hip_only_option) 518 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 519 520 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 521 Diags.Report(diag::warn_ignored_hip_only_option) 522 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 523 524 // When these options are used, the compiler is allowed to apply 525 // optimizations that may affect the final result. For example 526 // (x+y)+z is transformed to x+(y+z) but may not give the same 527 // final result; it's not value safe. 528 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 529 // or NaN. Final result may then differ. An error is issued when the eval 530 // method is set with one of these options. 531 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 532 if (LangOpts.ApproxFunc) 533 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 534 if (LangOpts.AllowFPReassoc) 535 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 536 if (LangOpts.AllowRecip) 537 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 538 } 539 540 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 541 // This option should be deprecated for CL > 1.0 because 542 // this option was added for compatibility with OpenCL 1.0. 543 if (Args.getLastArg(OPT_cl_strict_aliasing) && 544 (LangOpts.getOpenCLCompatibleVersion() > 100)) 545 Diags.Report(diag::warn_option_invalid_ocl_version) 546 << LangOpts.getOpenCLVersionString() 547 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 548 549 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 550 auto DefaultCC = LangOpts.getDefaultCallingConv(); 551 552 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 553 DefaultCC == LangOptions::DCC_StdCall) && 554 Arch != llvm::Triple::x86; 555 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 556 DefaultCC == LangOptions::DCC_RegCall) && 557 !T.isX86(); 558 if (emitError) 559 Diags.Report(diag::err_drv_argument_not_allowed_with) 560 << A->getSpelling() << T.getTriple(); 561 } 562 563 return Diags.getNumErrors() == NumErrorsBefore; 564 } 565 566 //===----------------------------------------------------------------------===// 567 // Deserialization (from args) 568 //===----------------------------------------------------------------------===// 569 570 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 571 DiagnosticsEngine &Diags) { 572 unsigned DefaultOpt = llvm::CodeGenOpt::None; 573 if ((IK.getLanguage() == Language::OpenCL || 574 IK.getLanguage() == Language::OpenCLCXX) && 575 !Args.hasArg(OPT_cl_opt_disable)) 576 DefaultOpt = llvm::CodeGenOpt::Default; 577 578 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 579 if (A->getOption().matches(options::OPT_O0)) 580 return llvm::CodeGenOpt::None; 581 582 if (A->getOption().matches(options::OPT_Ofast)) 583 return llvm::CodeGenOpt::Aggressive; 584 585 assert(A->getOption().matches(options::OPT_O)); 586 587 StringRef S(A->getValue()); 588 if (S == "s" || S == "z") 589 return llvm::CodeGenOpt::Default; 590 591 if (S == "g") 592 return llvm::CodeGenOpt::Less; 593 594 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 595 } 596 597 return DefaultOpt; 598 } 599 600 static unsigned getOptimizationLevelSize(ArgList &Args) { 601 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 602 if (A->getOption().matches(options::OPT_O)) { 603 switch (A->getValue()[0]) { 604 default: 605 return 0; 606 case 's': 607 return 1; 608 case 'z': 609 return 2; 610 } 611 } 612 } 613 return 0; 614 } 615 616 static void GenerateArg(SmallVectorImpl<const char *> &Args, 617 llvm::opt::OptSpecifier OptSpecifier, 618 CompilerInvocation::StringAllocator SA) { 619 Option Opt = getDriverOptTable().getOption(OptSpecifier); 620 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 621 Option::OptionClass::FlagClass, 0); 622 } 623 624 static void GenerateArg(SmallVectorImpl<const char *> &Args, 625 llvm::opt::OptSpecifier OptSpecifier, 626 const Twine &Value, 627 CompilerInvocation::StringAllocator SA) { 628 Option Opt = getDriverOptTable().getOption(OptSpecifier); 629 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 630 Opt.getKind(), 0, Value); 631 } 632 633 // Parse command line arguments into CompilerInvocation. 634 using ParseFn = 635 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 636 DiagnosticsEngine &, const char *)>; 637 638 // Generate command line arguments from CompilerInvocation. 639 using GenerateFn = llvm::function_ref<void( 640 CompilerInvocation &, SmallVectorImpl<const char *> &, 641 CompilerInvocation::StringAllocator)>; 642 643 // May perform round-trip of command line arguments. By default, the round-trip 644 // is enabled in assert builds. This can be overwritten at run-time via the 645 // "-round-trip-args" and "-no-round-trip-args" command line flags. 646 // During round-trip, the command line arguments are parsed into a dummy 647 // instance of CompilerInvocation which is used to generate the command line 648 // arguments again. The real CompilerInvocation instance is then created by 649 // parsing the generated arguments, not the original ones. 650 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 651 CompilerInvocation &RealInvocation, 652 CompilerInvocation &DummyInvocation, 653 ArrayRef<const char *> CommandLineArgs, 654 DiagnosticsEngine &Diags, const char *Argv0) { 655 #ifndef NDEBUG 656 bool DoRoundTripDefault = true; 657 #else 658 bool DoRoundTripDefault = false; 659 #endif 660 661 bool DoRoundTrip = DoRoundTripDefault; 662 for (const auto *Arg : CommandLineArgs) { 663 if (Arg == StringRef("-round-trip-args")) 664 DoRoundTrip = true; 665 if (Arg == StringRef("-no-round-trip-args")) 666 DoRoundTrip = false; 667 } 668 669 // If round-trip was not requested, simply run the parser with the real 670 // invocation diagnostics. 671 if (!DoRoundTrip) 672 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 673 674 // Serializes quoted (and potentially escaped) arguments. 675 auto SerializeArgs = [](ArrayRef<const char *> Args) { 676 std::string Buffer; 677 llvm::raw_string_ostream OS(Buffer); 678 for (const char *Arg : Args) { 679 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 680 OS << ' '; 681 } 682 OS.flush(); 683 return Buffer; 684 }; 685 686 // Setup a dummy DiagnosticsEngine. 687 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 688 DummyDiags.setClient(new TextDiagnosticBuffer()); 689 690 // Run the first parse on the original arguments with the dummy invocation and 691 // diagnostics. 692 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 693 DummyDiags.getNumWarnings() != 0) { 694 // If the first parse did not succeed, it must be user mistake (invalid 695 // command line arguments). We won't be able to generate arguments that 696 // would reproduce the same result. Let's fail again with the real 697 // invocation and diagnostics, so all side-effects of parsing are visible. 698 unsigned NumWarningsBefore = Diags.getNumWarnings(); 699 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 700 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 701 return Success; 702 703 // Parse with original options and diagnostics succeeded even though it 704 // shouldn't have. Something is off. 705 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 706 Diags.Report(diag::note_cc1_round_trip_original) 707 << SerializeArgs(CommandLineArgs); 708 return false; 709 } 710 711 // Setup string allocator. 712 llvm::BumpPtrAllocator Alloc; 713 llvm::StringSaver StringPool(Alloc); 714 auto SA = [&StringPool](const Twine &Arg) { 715 return StringPool.save(Arg).data(); 716 }; 717 718 // Generate arguments from the dummy invocation. If Generate is the 719 // inverse of Parse, the newly generated arguments must have the same 720 // semantics as the original. 721 SmallVector<const char *> GeneratedArgs1; 722 Generate(DummyInvocation, GeneratedArgs1, SA); 723 724 // Run the second parse, now on the generated arguments, and with the real 725 // invocation and diagnostics. The result is what we will end up using for the 726 // rest of compilation, so if Generate is not inverse of Parse, something down 727 // the line will break. 728 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 729 730 // The first parse on original arguments succeeded, but second parse of 731 // generated arguments failed. Something must be wrong with the generator. 732 if (!Success2) { 733 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 734 Diags.Report(diag::note_cc1_round_trip_generated) 735 << 1 << SerializeArgs(GeneratedArgs1); 736 return false; 737 } 738 739 // Generate arguments again, this time from the options we will end up using 740 // for the rest of the compilation. 741 SmallVector<const char *> GeneratedArgs2; 742 Generate(RealInvocation, GeneratedArgs2, SA); 743 744 // Compares two lists of generated arguments. 745 auto Equal = [](const ArrayRef<const char *> A, 746 const ArrayRef<const char *> B) { 747 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 748 [](const char *AElem, const char *BElem) { 749 return StringRef(AElem) == StringRef(BElem); 750 }); 751 }; 752 753 // If we generated different arguments from what we assume are two 754 // semantically equivalent CompilerInvocations, the Generate function may 755 // be non-deterministic. 756 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 757 Diags.Report(diag::err_cc1_round_trip_mismatch); 758 Diags.Report(diag::note_cc1_round_trip_generated) 759 << 1 << SerializeArgs(GeneratedArgs1); 760 Diags.Report(diag::note_cc1_round_trip_generated) 761 << 2 << SerializeArgs(GeneratedArgs2); 762 return false; 763 } 764 765 Diags.Report(diag::remark_cc1_round_trip_generated) 766 << 1 << SerializeArgs(GeneratedArgs1); 767 Diags.Report(diag::remark_cc1_round_trip_generated) 768 << 2 << SerializeArgs(GeneratedArgs2); 769 770 return Success2; 771 } 772 773 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 774 OptSpecifier GroupWithValue, 775 std::vector<std::string> &Diagnostics) { 776 for (auto *A : Args.filtered(Group)) { 777 if (A->getOption().getKind() == Option::FlagClass) { 778 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 779 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 780 Diagnostics.push_back( 781 std::string(A->getOption().getName().drop_front(1))); 782 } else if (A->getOption().matches(GroupWithValue)) { 783 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 784 // group. Add only the group name to the diagnostics. 785 Diagnostics.push_back( 786 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 787 } else { 788 // Otherwise, add its value (for OPT_W_Joined and similar). 789 Diagnostics.push_back(A->getValue()); 790 } 791 } 792 } 793 794 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 795 // it won't verify the input. 796 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 797 DiagnosticsEngine *Diags); 798 799 static void getAllNoBuiltinFuncValues(ArgList &Args, 800 std::vector<std::string> &Funcs) { 801 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 802 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 803 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 804 } 805 806 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 807 SmallVectorImpl<const char *> &Args, 808 CompilerInvocation::StringAllocator SA) { 809 const AnalyzerOptions *AnalyzerOpts = &Opts; 810 811 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 812 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 813 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 814 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 815 MERGER, EXTRACTOR, TABLE_INDEX) \ 816 GENERATE_OPTION_WITH_MARSHALLING( \ 817 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 818 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 819 #include "clang/Driver/Options.inc" 820 #undef ANALYZER_OPTION_WITH_MARSHALLING 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 (Args.hasArg(OPT_analyzer_store)) 910 Diags.Report(diag::warn_analyzer_deprecated_option) << "-analyzer-store" 911 << "clang-16"; 912 if (Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks)) 913 Diags.Report(diag::warn_analyzer_deprecated_option) 914 << "-analyzer-opt-analyze-nested-blocks" 915 << "clang-16"; 916 917 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 918 StringRef Name = A->getValue(); 919 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 920 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 921 .Case(CMDFLAG, NAME##Model) 922 #include "clang/StaticAnalyzer/Core/Analyses.def" 923 .Default(NumConstraints); 924 if (Value == NumConstraints) { 925 Diags.Report(diag::err_drv_invalid_value) 926 << A->getAsString(Args) << Name; 927 } else { 928 #ifndef LLVM_WITH_Z3 929 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 930 Diags.Report(diag::err_analyzer_not_built_with_z3); 931 } 932 #endif // LLVM_WITH_Z3 933 Opts.AnalysisConstraintsOpt = Value; 934 } 935 } 936 937 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 938 StringRef Name = A->getValue(); 939 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 940 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 941 .Case(CMDFLAG, PD_##NAME) 942 #include "clang/StaticAnalyzer/Core/Analyses.def" 943 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 944 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 945 Diags.Report(diag::err_drv_invalid_value) 946 << A->getAsString(Args) << Name; 947 } else { 948 Opts.AnalysisDiagOpt = Value; 949 } 950 } 951 952 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 953 StringRef Name = A->getValue(); 954 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 955 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 956 .Case(CMDFLAG, NAME) 957 #include "clang/StaticAnalyzer/Core/Analyses.def" 958 .Default(NumPurgeModes); 959 if (Value == NumPurgeModes) { 960 Diags.Report(diag::err_drv_invalid_value) 961 << A->getAsString(Args) << Name; 962 } else { 963 Opts.AnalysisPurgeOpt = Value; 964 } 965 } 966 967 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 968 StringRef Name = A->getValue(); 969 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 970 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 971 .Case(CMDFLAG, NAME) 972 #include "clang/StaticAnalyzer/Core/Analyses.def" 973 .Default(NumInliningModes); 974 if (Value == NumInliningModes) { 975 Diags.Report(diag::err_drv_invalid_value) 976 << A->getAsString(Args) << Name; 977 } else { 978 Opts.InliningMode = Value; 979 } 980 } 981 982 Opts.CheckersAndPackages.clear(); 983 for (const Arg *A : 984 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 985 A->claim(); 986 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 987 // We can have a list of comma separated checker names, e.g: 988 // '-analyzer-checker=cocoa,unix' 989 StringRef CheckerAndPackageList = A->getValue(); 990 SmallVector<StringRef, 16> CheckersAndPackages; 991 CheckerAndPackageList.split(CheckersAndPackages, ","); 992 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 993 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 994 IsEnabled); 995 } 996 997 // Go through the analyzer configuration options. 998 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 999 1000 // We can have a list of comma separated config names, e.g: 1001 // '-analyzer-config key1=val1,key2=val2' 1002 StringRef configList = A->getValue(); 1003 SmallVector<StringRef, 4> configVals; 1004 configList.split(configVals, ","); 1005 for (const auto &configVal : configVals) { 1006 StringRef key, val; 1007 std::tie(key, val) = configVal.split("="); 1008 if (val.empty()) { 1009 Diags.Report(SourceLocation(), 1010 diag::err_analyzer_config_no_value) << configVal; 1011 break; 1012 } 1013 if (val.contains('=')) { 1014 Diags.Report(SourceLocation(), 1015 diag::err_analyzer_config_multiple_values) 1016 << configVal; 1017 break; 1018 } 1019 1020 // TODO: Check checker options too, possibly in CheckerRegistry. 1021 // Leave unknown non-checker configs unclaimed. 1022 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1023 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1024 Diags.Report(diag::err_analyzer_config_unknown) << key; 1025 continue; 1026 } 1027 1028 A->claim(); 1029 Opts.Config[key] = std::string(val); 1030 } 1031 } 1032 1033 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1034 parseAnalyzerConfigs(Opts, &Diags); 1035 else 1036 parseAnalyzerConfigs(Opts, nullptr); 1037 1038 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1039 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1040 if (i != 0) 1041 os << " "; 1042 os << Args.getArgString(i); 1043 } 1044 os.flush(); 1045 1046 return Diags.getNumErrors() == NumErrorsBefore; 1047 } 1048 1049 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1050 StringRef OptionName, StringRef DefaultVal) { 1051 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1052 } 1053 1054 static void initOption(AnalyzerOptions::ConfigTable &Config, 1055 DiagnosticsEngine *Diags, 1056 StringRef &OptionField, StringRef Name, 1057 StringRef DefaultVal) { 1058 // String options may be known to invalid (e.g. if the expected string is a 1059 // file name, but the file does not exist), those will have to be checked in 1060 // parseConfigs. 1061 OptionField = getStringOption(Config, Name, DefaultVal); 1062 } 1063 1064 static void initOption(AnalyzerOptions::ConfigTable &Config, 1065 DiagnosticsEngine *Diags, 1066 bool &OptionField, StringRef Name, bool DefaultVal) { 1067 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1068 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1069 .Case("true", true) 1070 .Case("false", false) 1071 .Default(None); 1072 1073 if (!PossiblyInvalidVal) { 1074 if (Diags) 1075 Diags->Report(diag::err_analyzer_config_invalid_input) 1076 << Name << "a boolean"; 1077 else 1078 OptionField = DefaultVal; 1079 } else 1080 OptionField = *PossiblyInvalidVal; 1081 } 1082 1083 static void initOption(AnalyzerOptions::ConfigTable &Config, 1084 DiagnosticsEngine *Diags, 1085 unsigned &OptionField, StringRef Name, 1086 unsigned DefaultVal) { 1087 1088 OptionField = DefaultVal; 1089 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1090 .getAsInteger(0, OptionField); 1091 if (Diags && HasFailed) 1092 Diags->Report(diag::err_analyzer_config_invalid_input) 1093 << Name << "an unsigned"; 1094 } 1095 1096 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1097 DiagnosticsEngine *Diags) { 1098 // TODO: There's no need to store the entire configtable, it'd be plenty 1099 // enough to store checker options. 1100 1101 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1102 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1103 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1104 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1105 1106 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1107 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1108 1109 #define ANALYZER_OPTION(...) 1110 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1111 SHALLOW_VAL, DEEP_VAL) \ 1112 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1113 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1114 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1115 1116 // At this point, AnalyzerOptions is configured. Let's validate some options. 1117 1118 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1119 // The current approach only validates the registered checkers which does not 1120 // contain the runtime enabled checkers and optimally we would validate both. 1121 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1122 std::vector<StringRef> Checkers = 1123 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1124 std::vector<StringRef> Packages = 1125 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1126 1127 SmallVector<StringRef, 16> CheckersAndPackages; 1128 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1129 1130 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1131 if (Diags) { 1132 bool IsChecker = CheckerOrPackage.contains('.'); 1133 bool IsValidName = IsChecker 1134 ? llvm::is_contained(Checkers, CheckerOrPackage) 1135 : llvm::is_contained(Packages, CheckerOrPackage); 1136 1137 if (!IsValidName) 1138 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1139 << CheckerOrPackage; 1140 } 1141 1142 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1143 } 1144 } 1145 1146 if (!Diags) 1147 return; 1148 1149 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1150 Diags->Report(diag::err_analyzer_config_invalid_input) 1151 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1152 1153 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1154 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1155 << "a filename"; 1156 1157 if (!AnOpts.ModelPath.empty() && 1158 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1159 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1160 << "a filename"; 1161 } 1162 1163 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1164 static void 1165 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1166 CompilerInvocation::StringAllocator SA, 1167 OptSpecifier OptEQ, StringRef Name, 1168 const CodeGenOptions::OptRemark &Remark) { 1169 if (Remark.hasValidPattern()) { 1170 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1171 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1172 GenerateArg(Args, OPT_R_Joined, Name, SA); 1173 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1174 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1175 } 1176 } 1177 1178 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1179 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1180 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1181 static CodeGenOptions::OptRemark 1182 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1183 OptSpecifier OptEQ, StringRef Name) { 1184 CodeGenOptions::OptRemark Result; 1185 1186 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1187 StringRef Pattern) { 1188 Result.Pattern = Pattern.str(); 1189 1190 std::string RegexError; 1191 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1192 if (!Result.Regex->isValid(RegexError)) { 1193 Diags.Report(diag::err_drv_optimization_remark_pattern) 1194 << RegexError << A->getAsString(Args); 1195 return false; 1196 } 1197 1198 return true; 1199 }; 1200 1201 for (Arg *A : Args) { 1202 if (A->getOption().matches(OPT_R_Joined)) { 1203 StringRef Value = A->getValue(); 1204 1205 if (Value == Name) 1206 Result.Kind = CodeGenOptions::RK_Enabled; 1207 else if (Value == "everything") 1208 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1209 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1210 Result.Kind = CodeGenOptions::RK_Disabled; 1211 else if (Value == "no-everything") 1212 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1213 else 1214 continue; 1215 1216 if (Result.Kind == CodeGenOptions::RK_Disabled || 1217 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1218 Result.Pattern = ""; 1219 Result.Regex = nullptr; 1220 } else { 1221 InitializeResultPattern(A, ".*"); 1222 } 1223 } else if (A->getOption().matches(OptEQ)) { 1224 Result.Kind = CodeGenOptions::RK_WithPattern; 1225 if (!InitializeResultPattern(A, A->getValue())) 1226 return CodeGenOptions::OptRemark(); 1227 } 1228 } 1229 1230 return Result; 1231 } 1232 1233 static bool parseDiagnosticLevelMask(StringRef FlagName, 1234 const std::vector<std::string> &Levels, 1235 DiagnosticsEngine &Diags, 1236 DiagnosticLevelMask &M) { 1237 bool Success = true; 1238 for (const auto &Level : Levels) { 1239 DiagnosticLevelMask const PM = 1240 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1241 .Case("note", DiagnosticLevelMask::Note) 1242 .Case("remark", DiagnosticLevelMask::Remark) 1243 .Case("warning", DiagnosticLevelMask::Warning) 1244 .Case("error", DiagnosticLevelMask::Error) 1245 .Default(DiagnosticLevelMask::None); 1246 if (PM == DiagnosticLevelMask::None) { 1247 Success = false; 1248 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1249 } 1250 M = M | PM; 1251 } 1252 return Success; 1253 } 1254 1255 static void parseSanitizerKinds(StringRef FlagName, 1256 const std::vector<std::string> &Sanitizers, 1257 DiagnosticsEngine &Diags, SanitizerSet &S) { 1258 for (const auto &Sanitizer : Sanitizers) { 1259 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1260 if (K == SanitizerMask()) 1261 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1262 else 1263 S.set(K, true); 1264 } 1265 } 1266 1267 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1268 SmallVector<StringRef, 4> Values; 1269 serializeSanitizerSet(S, Values); 1270 return Values; 1271 } 1272 1273 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1274 ArgList &Args, DiagnosticsEngine &D, 1275 XRayInstrSet &S) { 1276 llvm::SmallVector<StringRef, 2> BundleParts; 1277 llvm::SplitString(Bundle, BundleParts, ","); 1278 for (const auto &B : BundleParts) { 1279 auto Mask = parseXRayInstrValue(B); 1280 if (Mask == XRayInstrKind::None) 1281 if (B != "none") 1282 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1283 else 1284 S.Mask = Mask; 1285 else if (Mask == XRayInstrKind::All) 1286 S.Mask = Mask; 1287 else 1288 S.set(Mask, true); 1289 } 1290 } 1291 1292 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1293 llvm::SmallVector<StringRef, 2> BundleParts; 1294 serializeXRayInstrValue(S, BundleParts); 1295 std::string Buffer; 1296 llvm::raw_string_ostream OS(Buffer); 1297 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1298 return Buffer; 1299 } 1300 1301 // Set the profile kind using fprofile-instrument-use-path. 1302 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1303 const Twine &ProfileName) { 1304 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1305 // In error, return silently and let Clang PGOUse report the error message. 1306 if (auto E = ReaderOrErr.takeError()) { 1307 llvm::consumeError(std::move(E)); 1308 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1309 return; 1310 } 1311 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1312 std::move(ReaderOrErr.get()); 1313 if (PGOReader->isIRLevelProfile()) { 1314 if (PGOReader->hasCSIRLevelProfile()) 1315 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1316 else 1317 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1318 } else 1319 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1320 } 1321 1322 void CompilerInvocation::GenerateCodeGenArgs( 1323 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1324 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1325 const LangOptions *LangOpts) { 1326 const CodeGenOptions &CodeGenOpts = Opts; 1327 1328 if (Opts.OptimizationLevel == 0) 1329 GenerateArg(Args, OPT_O0, SA); 1330 else 1331 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1332 1333 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1334 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1335 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1336 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1337 MERGER, EXTRACTOR, TABLE_INDEX) \ 1338 GENERATE_OPTION_WITH_MARSHALLING( \ 1339 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1340 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1341 #include "clang/Driver/Options.inc" 1342 #undef CODEGEN_OPTION_WITH_MARSHALLING 1343 1344 if (Opts.OptimizationLevel > 0) { 1345 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1346 GenerateArg(Args, OPT_finline_functions, SA); 1347 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1348 GenerateArg(Args, OPT_finline_hint_functions, SA); 1349 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1350 GenerateArg(Args, OPT_fno_inline, SA); 1351 } 1352 1353 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1354 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1355 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1356 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1357 1358 Optional<StringRef> DebugInfoVal; 1359 switch (Opts.DebugInfo) { 1360 case codegenoptions::DebugLineTablesOnly: 1361 DebugInfoVal = "line-tables-only"; 1362 break; 1363 case codegenoptions::DebugDirectivesOnly: 1364 DebugInfoVal = "line-directives-only"; 1365 break; 1366 case codegenoptions::DebugInfoConstructor: 1367 DebugInfoVal = "constructor"; 1368 break; 1369 case codegenoptions::LimitedDebugInfo: 1370 DebugInfoVal = "limited"; 1371 break; 1372 case codegenoptions::FullDebugInfo: 1373 DebugInfoVal = "standalone"; 1374 break; 1375 case codegenoptions::UnusedTypeInfo: 1376 DebugInfoVal = "unused-types"; 1377 break; 1378 case codegenoptions::NoDebugInfo: // default value 1379 DebugInfoVal = None; 1380 break; 1381 case codegenoptions::LocTrackingOnly: // implied value 1382 DebugInfoVal = None; 1383 break; 1384 } 1385 if (DebugInfoVal) 1386 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1387 1388 for (const auto &Prefix : Opts.DebugPrefixMap) 1389 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1390 Prefix.first + "=" + Prefix.second, SA); 1391 1392 for (const auto &Prefix : Opts.CoveragePrefixMap) 1393 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1394 Prefix.first + "=" + Prefix.second, SA); 1395 1396 if (Opts.NewStructPathTBAA) 1397 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1398 1399 if (Opts.OptimizeSize == 1) 1400 GenerateArg(Args, OPT_O, "s", SA); 1401 else if (Opts.OptimizeSize == 2) 1402 GenerateArg(Args, OPT_O, "z", SA); 1403 1404 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1405 // -ffreestanding. We'll consider that when generating them. 1406 1407 // NoBuiltinFuncs are generated by LangOptions. 1408 1409 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1410 GenerateArg(Args, OPT_funroll_loops, SA); 1411 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1412 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1413 1414 if (!Opts.BinutilsVersion.empty()) 1415 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1416 1417 if (Opts.DebugNameTable == 1418 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1419 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1420 else if (Opts.DebugNameTable == 1421 static_cast<unsigned>( 1422 llvm::DICompileUnit::DebugNameTableKind::Default)) 1423 GenerateArg(Args, OPT_gpubnames, SA); 1424 1425 auto TNK = Opts.getDebugSimpleTemplateNames(); 1426 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1427 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1428 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1429 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1430 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1431 } 1432 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1433 // it or PGOUseInstrumentor. 1434 1435 if (Opts.TimePasses) { 1436 if (Opts.TimePassesPerRun) 1437 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1438 else 1439 GenerateArg(Args, OPT_ftime_report, SA); 1440 } 1441 1442 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1443 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1444 1445 if (Opts.PrepareForThinLTO) 1446 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1447 1448 if (!Opts.ThinLTOIndexFile.empty()) 1449 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1450 1451 if (Opts.SaveTempsFilePrefix == OutputFile) 1452 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1453 1454 StringRef MemProfileBasename("memprof.profraw"); 1455 if (!Opts.MemoryProfileOutput.empty()) { 1456 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1457 GenerateArg(Args, OPT_fmemory_profile, SA); 1458 } else { 1459 size_t ArgLength = 1460 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1461 GenerateArg(Args, OPT_fmemory_profile_EQ, 1462 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1463 } 1464 } 1465 1466 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1467 GenerateArg(Args, OPT_coverage_version_EQ, 1468 StringRef(Opts.CoverageVersion, 4), SA); 1469 1470 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1471 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1472 // won't be generated.) 1473 1474 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1475 std::string InstrBundle = 1476 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1477 if (!InstrBundle.empty()) 1478 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1479 } 1480 1481 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1482 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1483 else if (Opts.CFProtectionReturn) 1484 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1485 else if (Opts.CFProtectionBranch) 1486 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1487 1488 if (Opts.IBTSeal) 1489 GenerateArg(Args, OPT_mibt_seal, SA); 1490 1491 if (Opts.FunctionReturnThunks) 1492 GenerateArg(Args, OPT_mfunction_return_EQ, "thunk-extern", SA); 1493 1494 for (const auto &F : Opts.LinkBitcodeFiles) { 1495 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1496 F.PropagateAttrs && F.Internalize; 1497 GenerateArg(Args, 1498 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1499 F.Filename, SA); 1500 } 1501 1502 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1503 // That would make it easy to generate the option only **once** if it was 1504 // explicitly set to non-default value. 1505 if (Opts.ExplicitEmulatedTLS) { 1506 GenerateArg( 1507 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1508 } 1509 1510 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1511 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1512 1513 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1514 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1515 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1516 SA); 1517 1518 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1519 OptSpecifier Opt = 1520 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1521 GenerateArg(Args, Opt, SA); 1522 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1523 OptSpecifier Opt = 1524 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1525 GenerateArg(Args, Opt, SA); 1526 } 1527 1528 if (Opts.EnableAIXExtendedAltivecABI) 1529 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1530 1531 if (!Opts.OptRecordPasses.empty()) 1532 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1533 1534 if (!Opts.OptRecordFormat.empty()) 1535 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1536 1537 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1538 Opts.OptimizationRemark); 1539 1540 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1541 Opts.OptimizationRemarkMissed); 1542 1543 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1544 Opts.OptimizationRemarkAnalysis); 1545 1546 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1547 Opts.DiagnosticsHotnessThreshold 1548 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1549 : "auto", 1550 SA); 1551 1552 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1553 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1554 1555 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1556 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1557 1558 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1559 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1560 1561 if (!Opts.EmitVersionIdentMetadata) 1562 GenerateArg(Args, OPT_Qn, SA); 1563 1564 switch (Opts.FiniteLoops) { 1565 case CodeGenOptions::FiniteLoopsKind::Language: 1566 break; 1567 case CodeGenOptions::FiniteLoopsKind::Always: 1568 GenerateArg(Args, OPT_ffinite_loops, SA); 1569 break; 1570 case CodeGenOptions::FiniteLoopsKind::Never: 1571 GenerateArg(Args, OPT_fno_finite_loops, SA); 1572 break; 1573 } 1574 } 1575 1576 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1577 InputKind IK, 1578 DiagnosticsEngine &Diags, 1579 const llvm::Triple &T, 1580 const std::string &OutputFile, 1581 const LangOptions &LangOptsRef) { 1582 unsigned NumErrorsBefore = Diags.getNumErrors(); 1583 1584 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1585 // TODO: This could be done in Driver 1586 unsigned MaxOptLevel = 3; 1587 if (OptimizationLevel > MaxOptLevel) { 1588 // If the optimization level is not supported, fall back on the default 1589 // optimization 1590 Diags.Report(diag::warn_drv_optimization_value) 1591 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1592 OptimizationLevel = MaxOptLevel; 1593 } 1594 Opts.OptimizationLevel = OptimizationLevel; 1595 1596 // The key paths of codegen options defined in Options.td start with 1597 // "CodeGenOpts.". Let's provide the expected variable name and type. 1598 CodeGenOptions &CodeGenOpts = Opts; 1599 // Some codegen options depend on language options. Let's provide the expected 1600 // variable name and type. 1601 const LangOptions *LangOpts = &LangOptsRef; 1602 1603 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1604 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1605 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1606 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1607 MERGER, EXTRACTOR, TABLE_INDEX) \ 1608 PARSE_OPTION_WITH_MARSHALLING( \ 1609 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1610 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1611 #include "clang/Driver/Options.inc" 1612 #undef CODEGEN_OPTION_WITH_MARSHALLING 1613 1614 // At O0 we want to fully disable inlining outside of cases marked with 1615 // 'alwaysinline' that are required for correctness. 1616 if (Opts.OptimizationLevel == 0) { 1617 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1618 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1619 options::OPT_finline_hint_functions, 1620 options::OPT_fno_inline_functions, 1621 options::OPT_fno_inline)) { 1622 // Explicit inlining flags can disable some or all inlining even at 1623 // optimization levels above zero. 1624 if (A->getOption().matches(options::OPT_finline_functions)) 1625 Opts.setInlining(CodeGenOptions::NormalInlining); 1626 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1627 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1628 else 1629 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1630 } else { 1631 Opts.setInlining(CodeGenOptions::NormalInlining); 1632 } 1633 1634 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1635 // -fdirect-access-external-data. 1636 Opts.DirectAccessExternalData = 1637 Args.hasArg(OPT_fdirect_access_external_data) || 1638 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1639 LangOpts->PICLevel == 0); 1640 1641 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1642 unsigned Val = 1643 llvm::StringSwitch<unsigned>(A->getValue()) 1644 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1645 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1646 .Case("constructor", codegenoptions::DebugInfoConstructor) 1647 .Case("limited", codegenoptions::LimitedDebugInfo) 1648 .Case("standalone", codegenoptions::FullDebugInfo) 1649 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1650 .Default(~0U); 1651 if (Val == ~0U) 1652 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1653 << A->getValue(); 1654 else 1655 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1656 } 1657 1658 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1659 // constructor homing, and vice versa for -fno-use-ctor-homing. 1660 if (const Arg *A = 1661 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1662 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1663 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1664 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1665 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1666 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1667 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1668 } 1669 1670 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1671 auto Split = StringRef(Arg).split('='); 1672 Opts.DebugPrefixMap.insert( 1673 {std::string(Split.first), std::string(Split.second)}); 1674 } 1675 1676 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1677 auto Split = StringRef(Arg).split('='); 1678 Opts.CoveragePrefixMap.insert( 1679 {std::string(Split.first), std::string(Split.second)}); 1680 } 1681 1682 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1683 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1684 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1685 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1686 1687 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1688 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1689 Opts.EmitCallSiteInfo = true; 1690 1691 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1692 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1693 << Opts.DIBugsReportFilePath; 1694 Opts.DIBugsReportFilePath = ""; 1695 } 1696 1697 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1698 Args.hasArg(OPT_new_struct_path_tbaa); 1699 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1700 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1701 if (Opts.SimplifyLibCalls) 1702 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1703 Opts.UnrollLoops = 1704 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1705 (Opts.OptimizationLevel > 1)); 1706 Opts.BinutilsVersion = 1707 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1708 1709 Opts.DebugNameTable = static_cast<unsigned>( 1710 Args.hasArg(OPT_ggnu_pubnames) 1711 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1712 : Args.hasArg(OPT_gpubnames) 1713 ? llvm::DICompileUnit::DebugNameTableKind::Default 1714 : llvm::DICompileUnit::DebugNameTableKind::None); 1715 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1716 StringRef Value = A->getValue(); 1717 if (Value != "simple" && Value != "mangled") 1718 Diags.Report(diag::err_drv_unsupported_option_argument) 1719 << A->getOption().getName() << A->getValue(); 1720 Opts.setDebugSimpleTemplateNames( 1721 StringRef(A->getValue()) == "simple" 1722 ? codegenoptions::DebugTemplateNamesKind::Simple 1723 : codegenoptions::DebugTemplateNamesKind::Mangled); 1724 } 1725 1726 if (!Opts.ProfileInstrumentUsePath.empty()) 1727 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1728 1729 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1730 Opts.TimePasses = true; 1731 1732 // -ftime-report= is only for new pass manager. 1733 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1734 StringRef Val = A->getValue(); 1735 if (Val == "per-pass") 1736 Opts.TimePassesPerRun = false; 1737 else if (Val == "per-pass-run") 1738 Opts.TimePassesPerRun = true; 1739 else 1740 Diags.Report(diag::err_drv_invalid_value) 1741 << A->getAsString(Args) << A->getValue(); 1742 } 1743 } 1744 1745 Opts.PrepareForLTO = false; 1746 Opts.PrepareForThinLTO = false; 1747 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1748 Opts.PrepareForLTO = true; 1749 StringRef S = A->getValue(); 1750 if (S == "thin") 1751 Opts.PrepareForThinLTO = true; 1752 else if (S != "full") 1753 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1754 } 1755 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1756 if (IK.getLanguage() != Language::LLVM_IR) 1757 Diags.Report(diag::err_drv_argument_only_allowed_with) 1758 << A->getAsString(Args) << "-x ir"; 1759 Opts.ThinLTOIndexFile = 1760 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1761 } 1762 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1763 Opts.SaveTempsFilePrefix = 1764 llvm::StringSwitch<std::string>(A->getValue()) 1765 .Case("obj", OutputFile) 1766 .Default(llvm::sys::path::filename(OutputFile).str()); 1767 1768 // The memory profile runtime appends the pid to make this name more unique. 1769 const char *MemProfileBasename = "memprof.profraw"; 1770 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1771 SmallString<128> Path( 1772 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1773 llvm::sys::path::append(Path, MemProfileBasename); 1774 Opts.MemoryProfileOutput = std::string(Path); 1775 } else if (Args.hasArg(OPT_fmemory_profile)) 1776 Opts.MemoryProfileOutput = MemProfileBasename; 1777 1778 memcpy(Opts.CoverageVersion, "408*", 4); 1779 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1780 if (Args.hasArg(OPT_coverage_version_EQ)) { 1781 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1782 if (CoverageVersion.size() != 4) { 1783 Diags.Report(diag::err_drv_invalid_value) 1784 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1785 << CoverageVersion; 1786 } else { 1787 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1788 } 1789 } 1790 } 1791 // FIXME: For backend options that are not yet recorded as function 1792 // attributes in the IR, keep track of them so we can embed them in a 1793 // separate data section and use them when building the bitcode. 1794 for (const auto &A : Args) { 1795 // Do not encode output and input. 1796 if (A->getOption().getID() == options::OPT_o || 1797 A->getOption().getID() == options::OPT_INPUT || 1798 A->getOption().getID() == options::OPT_x || 1799 A->getOption().getID() == options::OPT_fembed_bitcode || 1800 A->getOption().matches(options::OPT_W_Group)) 1801 continue; 1802 ArgStringList ASL; 1803 A->render(Args, ASL); 1804 for (const auto &arg : ASL) { 1805 StringRef ArgStr(arg); 1806 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1807 // using \00 to separate each commandline options. 1808 Opts.CmdArgs.push_back('\0'); 1809 } 1810 } 1811 1812 auto XRayInstrBundles = 1813 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1814 if (XRayInstrBundles.empty()) 1815 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1816 else 1817 for (const auto &A : XRayInstrBundles) 1818 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1819 Diags, Opts.XRayInstrumentationBundle); 1820 1821 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1822 StringRef Name = A->getValue(); 1823 if (Name == "full") { 1824 Opts.CFProtectionReturn = 1; 1825 Opts.CFProtectionBranch = 1; 1826 } else if (Name == "return") 1827 Opts.CFProtectionReturn = 1; 1828 else if (Name == "branch") 1829 Opts.CFProtectionBranch = 1; 1830 else if (Name != "none") 1831 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1832 } 1833 1834 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1835 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1836 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1837 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1838 .Default(llvm::FunctionReturnThunksKind::Invalid); 1839 // SystemZ might want to add support for "expolines." 1840 if (!T.isX86()) 1841 Diags.Report(diag::err_drv_argument_not_allowed_with) 1842 << A->getSpelling() << T.getTriple(); 1843 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1844 Diags.Report(diag::err_drv_invalid_value) 1845 << A->getAsString(Args) << A->getValue(); 1846 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1847 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1848 Diags.Report(diag::err_drv_argument_not_allowed_with) 1849 << A->getAsString(Args) 1850 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1851 else 1852 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1853 } 1854 1855 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1856 Opts.IBTSeal = 1; 1857 1858 for (auto *A : 1859 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1860 CodeGenOptions::BitcodeFileToLink F; 1861 F.Filename = A->getValue(); 1862 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1863 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1864 // When linking CUDA bitcode, propagate function attributes so that 1865 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1866 F.PropagateAttrs = true; 1867 F.Internalize = true; 1868 } 1869 Opts.LinkBitcodeFiles.push_back(F); 1870 } 1871 1872 if (Args.getLastArg(OPT_femulated_tls) || 1873 Args.getLastArg(OPT_fno_emulated_tls)) { 1874 Opts.ExplicitEmulatedTLS = true; 1875 } 1876 1877 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1878 if (T.isOSAIX()) { 1879 StringRef Name = A->getValue(); 1880 if (Name != "global-dynamic") 1881 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1882 } 1883 } 1884 1885 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1886 StringRef Val = A->getValue(); 1887 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1888 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1889 if (!Opts.FPDenormalMode.isValid()) 1890 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1891 } 1892 1893 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1894 StringRef Val = A->getValue(); 1895 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1896 if (!Opts.FP32DenormalMode.isValid()) 1897 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1898 } 1899 1900 // X86_32 has -fppc-struct-return and -freg-struct-return. 1901 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1902 if (Arg *A = 1903 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1904 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1905 // TODO: We might want to consider enabling these options on AIX in the 1906 // future. 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 if (O.matches(OPT_fpcc_struct_return) || 1913 O.matches(OPT_maix_struct_return)) { 1914 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1915 } else { 1916 assert(O.matches(OPT_freg_struct_return) || 1917 O.matches(OPT_msvr4_struct_return)); 1918 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1919 } 1920 } 1921 1922 if (Arg *A = 1923 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1924 if (!T.isOSAIX()) 1925 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1926 << A->getSpelling() << T.str(); 1927 1928 const Option &O = A->getOption(); 1929 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1930 } 1931 1932 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1933 if (!T.isOSAIX() || T.isPPC32()) 1934 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1935 << A->getSpelling() << T.str(); 1936 } 1937 1938 bool NeedLocTracking = false; 1939 1940 if (!Opts.OptRecordFile.empty()) 1941 NeedLocTracking = true; 1942 1943 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1944 Opts.OptRecordPasses = A->getValue(); 1945 NeedLocTracking = true; 1946 } 1947 1948 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1949 Opts.OptRecordFormat = A->getValue(); 1950 NeedLocTracking = true; 1951 } 1952 1953 Opts.OptimizationRemark = 1954 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1955 1956 Opts.OptimizationRemarkMissed = 1957 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1958 1959 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1960 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1961 1962 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1963 Opts.OptimizationRemarkMissed.hasValidPattern() || 1964 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1965 1966 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1967 bool UsingProfile = UsingSampleProfile || 1968 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1969 1970 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1971 // An IR file will contain PGO as metadata 1972 IK.getLanguage() != Language::LLVM_IR) 1973 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1974 << "-fdiagnostics-show-hotness"; 1975 1976 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1977 if (auto *arg = 1978 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1979 auto ResultOrErr = 1980 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1981 1982 if (!ResultOrErr) { 1983 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1984 << "-fdiagnostics-hotness-threshold="; 1985 } else { 1986 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1987 if ((!Opts.DiagnosticsHotnessThreshold || 1988 Opts.DiagnosticsHotnessThreshold.value() > 0) && 1989 !UsingProfile) 1990 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1991 << "-fdiagnostics-hotness-threshold="; 1992 } 1993 } 1994 1995 if (auto *arg = 1996 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1997 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1998 1999 if (!ResultOrErr) { 2000 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2001 << "-fdiagnostics-misexpect-tolerance="; 2002 } else { 2003 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2004 if ((!Opts.DiagnosticsMisExpectTolerance || 2005 Opts.DiagnosticsMisExpectTolerance.value() > 0) && 2006 !UsingProfile) 2007 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2008 << "-fdiagnostics-misexpect-tolerance="; 2009 } 2010 } 2011 2012 // If the user requested to use a sample profile for PGO, then the 2013 // backend will need to track source location information so the profile 2014 // can be incorporated into the IR. 2015 if (UsingSampleProfile) 2016 NeedLocTracking = true; 2017 2018 if (!Opts.StackUsageOutput.empty()) 2019 NeedLocTracking = true; 2020 2021 // If the user requested a flag that requires source locations available in 2022 // the backend, make sure that the backend tracks source location information. 2023 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2024 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2025 2026 // Parse -fsanitize-recover= arguments. 2027 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2028 parseSanitizerKinds("-fsanitize-recover=", 2029 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2030 Opts.SanitizeRecover); 2031 parseSanitizerKinds("-fsanitize-trap=", 2032 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2033 Opts.SanitizeTrap); 2034 2035 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2036 2037 if (Args.hasArg(options::OPT_ffinite_loops)) 2038 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2039 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2040 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2041 2042 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2043 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2044 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2045 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2046 2047 return Diags.getNumErrors() == NumErrorsBefore; 2048 } 2049 2050 static void 2051 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2052 SmallVectorImpl<const char *> &Args, 2053 CompilerInvocation::StringAllocator SA) { 2054 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2055 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2056 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2057 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2058 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2059 MERGER, EXTRACTOR, TABLE_INDEX) \ 2060 GENERATE_OPTION_WITH_MARSHALLING( \ 2061 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2062 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2063 #include "clang/Driver/Options.inc" 2064 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2065 2066 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2067 GenerateArg(Args, OPT_show_includes, SA); 2068 2069 for (const auto &Dep : Opts.ExtraDeps) { 2070 switch (Dep.second) { 2071 case EDK_SanitizeIgnorelist: 2072 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2073 continue; 2074 case EDK_ModuleFile: 2075 // Module file arguments are generated from FrontendOptions and 2076 // HeaderSearchOptions. 2077 continue; 2078 case EDK_ProfileList: 2079 // Profile list arguments are generated from LanguageOptions via the 2080 // marshalling infrastructure. 2081 continue; 2082 case EDK_DepFileEntry: 2083 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2084 break; 2085 } 2086 } 2087 } 2088 2089 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2090 ArgList &Args, DiagnosticsEngine &Diags, 2091 frontend::ActionKind Action, 2092 bool ShowLineMarkers) { 2093 unsigned NumErrorsBefore = Diags.getNumErrors(); 2094 2095 DependencyOutputOptions &DependencyOutputOpts = Opts; 2096 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2097 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2098 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2099 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2100 MERGER, EXTRACTOR, TABLE_INDEX) \ 2101 PARSE_OPTION_WITH_MARSHALLING( \ 2102 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2103 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2104 #include "clang/Driver/Options.inc" 2105 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2106 2107 if (Args.hasArg(OPT_show_includes)) { 2108 // Writing both /showIncludes and preprocessor output to stdout 2109 // would produce interleaved output, so use stderr for /showIncludes. 2110 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2111 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2112 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2113 else 2114 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2115 } else { 2116 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2117 } 2118 2119 // Add sanitizer ignorelists as extra dependencies. 2120 // They won't be discovered by the regular preprocessor, so 2121 // we let make / ninja to know about this implicit dependency. 2122 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2123 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2124 StringRef Val = A->getValue(); 2125 if (!Val.contains('=')) 2126 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2127 } 2128 if (Opts.IncludeSystemHeaders) { 2129 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2130 StringRef Val = A->getValue(); 2131 if (!Val.contains('=')) 2132 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2133 } 2134 } 2135 } 2136 2137 // -fprofile-list= dependencies. 2138 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2139 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2140 2141 // Propagate the extra dependencies. 2142 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2143 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2144 2145 // Only the -fmodule-file=<file> form. 2146 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2147 StringRef Val = A->getValue(); 2148 if (!Val.contains('=')) 2149 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2150 } 2151 2152 return Diags.getNumErrors() == NumErrorsBefore; 2153 } 2154 2155 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2156 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2157 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2158 // Support both clang's -f[no-]color-diagnostics and gcc's 2159 // -f[no-]diagnostics-colors[=never|always|auto]. 2160 enum { 2161 Colors_On, 2162 Colors_Off, 2163 Colors_Auto 2164 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2165 for (auto *A : Args) { 2166 const Option &O = A->getOption(); 2167 if (O.matches(options::OPT_fcolor_diagnostics)) { 2168 ShowColors = Colors_On; 2169 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2170 ShowColors = Colors_Off; 2171 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2172 StringRef Value(A->getValue()); 2173 if (Value == "always") 2174 ShowColors = Colors_On; 2175 else if (Value == "never") 2176 ShowColors = Colors_Off; 2177 else if (Value == "auto") 2178 ShowColors = Colors_Auto; 2179 } 2180 } 2181 return ShowColors == Colors_On || 2182 (ShowColors == Colors_Auto && 2183 llvm::sys::Process::StandardErrHasColors()); 2184 } 2185 2186 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2187 DiagnosticsEngine &Diags) { 2188 bool Success = true; 2189 for (const auto &Prefix : VerifyPrefixes) { 2190 // Every prefix must start with a letter and contain only alphanumeric 2191 // characters, hyphens, and underscores. 2192 auto BadChar = llvm::find_if(Prefix, [](char C) { 2193 return !isAlphanumeric(C) && C != '-' && C != '_'; 2194 }); 2195 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2196 Success = false; 2197 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2198 Diags.Report(diag::note_drv_verify_prefix_spelling); 2199 } 2200 } 2201 return Success; 2202 } 2203 2204 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2205 SmallVectorImpl<const char *> &Args, 2206 CompilerInvocation::StringAllocator SA) { 2207 const FileSystemOptions &FileSystemOpts = Opts; 2208 2209 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2210 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2211 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2212 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2213 MERGER, EXTRACTOR, TABLE_INDEX) \ 2214 GENERATE_OPTION_WITH_MARSHALLING( \ 2215 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2216 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2217 #include "clang/Driver/Options.inc" 2218 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2219 } 2220 2221 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2222 DiagnosticsEngine &Diags) { 2223 unsigned NumErrorsBefore = Diags.getNumErrors(); 2224 2225 FileSystemOptions &FileSystemOpts = Opts; 2226 2227 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2228 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2229 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2230 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2231 MERGER, EXTRACTOR, TABLE_INDEX) \ 2232 PARSE_OPTION_WITH_MARSHALLING( \ 2233 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2234 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2235 #include "clang/Driver/Options.inc" 2236 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2237 2238 return Diags.getNumErrors() == NumErrorsBefore; 2239 } 2240 2241 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2242 SmallVectorImpl<const char *> &Args, 2243 CompilerInvocation::StringAllocator SA) { 2244 const MigratorOptions &MigratorOpts = Opts; 2245 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2246 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2247 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2248 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2249 MERGER, EXTRACTOR, TABLE_INDEX) \ 2250 GENERATE_OPTION_WITH_MARSHALLING( \ 2251 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2252 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2253 #include "clang/Driver/Options.inc" 2254 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2255 } 2256 2257 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2258 DiagnosticsEngine &Diags) { 2259 unsigned NumErrorsBefore = Diags.getNumErrors(); 2260 2261 MigratorOptions &MigratorOpts = Opts; 2262 2263 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2264 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2265 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2266 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2267 MERGER, EXTRACTOR, TABLE_INDEX) \ 2268 PARSE_OPTION_WITH_MARSHALLING( \ 2269 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2270 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2271 #include "clang/Driver/Options.inc" 2272 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2273 2274 return Diags.getNumErrors() == NumErrorsBefore; 2275 } 2276 2277 void CompilerInvocation::GenerateDiagnosticArgs( 2278 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2279 StringAllocator SA, bool DefaultDiagColor) { 2280 const DiagnosticOptions *DiagnosticOpts = &Opts; 2281 #define DIAG_OPTION_WITH_MARSHALLING( \ 2282 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2283 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2284 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2285 MERGER, EXTRACTOR, TABLE_INDEX) \ 2286 GENERATE_OPTION_WITH_MARSHALLING( \ 2287 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2288 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2289 #include "clang/Driver/Options.inc" 2290 #undef DIAG_OPTION_WITH_MARSHALLING 2291 2292 if (!Opts.DiagnosticSerializationFile.empty()) 2293 GenerateArg(Args, OPT_diagnostic_serialized_file, 2294 Opts.DiagnosticSerializationFile, SA); 2295 2296 if (Opts.ShowColors) 2297 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2298 2299 if (Opts.VerifyDiagnostics && 2300 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2301 GenerateArg(Args, OPT_verify, SA); 2302 2303 for (const auto &Prefix : Opts.VerifyPrefixes) 2304 if (Prefix != "expected") 2305 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2306 2307 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2308 if (VIU == DiagnosticLevelMask::None) { 2309 // This is the default, don't generate anything. 2310 } else if (VIU == DiagnosticLevelMask::All) { 2311 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2312 } else { 2313 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2314 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2315 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2316 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2317 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2318 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2319 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2320 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2321 } 2322 2323 for (const auto &Warning : Opts.Warnings) { 2324 // This option is automatically generated from UndefPrefixes. 2325 if (Warning == "undef-prefix") 2326 continue; 2327 Args.push_back(SA(StringRef("-W") + Warning)); 2328 } 2329 2330 for (const auto &Remark : Opts.Remarks) { 2331 // These arguments are generated from OptimizationRemark fields of 2332 // CodeGenOptions. 2333 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2334 "pass-analysis", "no-pass-analysis", 2335 "pass-missed", "no-pass-missed"}; 2336 if (llvm::is_contained(IgnoredRemarks, Remark)) 2337 continue; 2338 2339 Args.push_back(SA(StringRef("-R") + Remark)); 2340 } 2341 } 2342 2343 std::unique_ptr<DiagnosticOptions> 2344 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2345 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2346 unsigned MissingArgIndex, MissingArgCount; 2347 InputArgList Args = getDriverOptTable().ParseArgs( 2348 Argv.slice(1), MissingArgIndex, MissingArgCount); 2349 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2350 // Any errors that would be diagnosed here will also be diagnosed later, 2351 // when the DiagnosticsEngine actually exists. 2352 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2353 return DiagOpts; 2354 } 2355 2356 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2357 DiagnosticsEngine *Diags, 2358 bool DefaultDiagColor) { 2359 Optional<DiagnosticsEngine> IgnoringDiags; 2360 if (!Diags) { 2361 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2362 new IgnoringDiagConsumer()); 2363 Diags = &*IgnoringDiags; 2364 } 2365 2366 unsigned NumErrorsBefore = Diags->getNumErrors(); 2367 2368 // The key paths of diagnostic options defined in Options.td start with 2369 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2370 DiagnosticOptions *DiagnosticOpts = &Opts; 2371 2372 #define DIAG_OPTION_WITH_MARSHALLING( \ 2373 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2374 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2375 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2376 MERGER, EXTRACTOR, TABLE_INDEX) \ 2377 PARSE_OPTION_WITH_MARSHALLING( \ 2378 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2379 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2380 #include "clang/Driver/Options.inc" 2381 #undef DIAG_OPTION_WITH_MARSHALLING 2382 2383 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2384 2385 if (Arg *A = 2386 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2387 Opts.DiagnosticSerializationFile = A->getValue(); 2388 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2389 2390 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2391 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2392 if (Args.hasArg(OPT_verify)) 2393 Opts.VerifyPrefixes.push_back("expected"); 2394 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2395 // then sort it to prepare for fast lookup using std::binary_search. 2396 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2397 Opts.VerifyDiagnostics = false; 2398 else 2399 llvm::sort(Opts.VerifyPrefixes); 2400 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2401 parseDiagnosticLevelMask( 2402 "-verify-ignore-unexpected=", 2403 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2404 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2405 DiagMask = DiagnosticLevelMask::All; 2406 Opts.setVerifyIgnoreUnexpected(DiagMask); 2407 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2408 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2409 Diags->Report(diag::warn_ignoring_ftabstop_value) 2410 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2411 } 2412 2413 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2414 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2415 2416 return Diags->getNumErrors() == NumErrorsBefore; 2417 } 2418 2419 /// Parse the argument to the -ftest-module-file-extension 2420 /// command-line argument. 2421 /// 2422 /// \returns true on error, false on success. 2423 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2424 std::string &BlockName, 2425 unsigned &MajorVersion, 2426 unsigned &MinorVersion, 2427 bool &Hashed, 2428 std::string &UserInfo) { 2429 SmallVector<StringRef, 5> Args; 2430 Arg.split(Args, ':', 5); 2431 if (Args.size() < 5) 2432 return true; 2433 2434 BlockName = std::string(Args[0]); 2435 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2436 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2437 if (Args[3].getAsInteger(2, Hashed)) return true; 2438 if (Args.size() > 4) 2439 UserInfo = std::string(Args[4]); 2440 return false; 2441 } 2442 2443 /// Return a table that associates command line option specifiers with the 2444 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2445 /// intentionally missing, as this case is handled separately from other 2446 /// frontend options. 2447 static const auto &getFrontendActionTable() { 2448 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2449 {frontend::ASTDeclList, OPT_ast_list}, 2450 2451 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2452 {frontend::ASTDump, OPT_ast_dump_all}, 2453 {frontend::ASTDump, OPT_ast_dump_EQ}, 2454 {frontend::ASTDump, OPT_ast_dump}, 2455 {frontend::ASTDump, OPT_ast_dump_lookups}, 2456 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2457 2458 {frontend::ASTPrint, OPT_ast_print}, 2459 {frontend::ASTView, OPT_ast_view}, 2460 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2461 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2462 {frontend::DumpTokens, OPT_dump_tokens}, 2463 {frontend::EmitAssembly, OPT_S}, 2464 {frontend::EmitBC, OPT_emit_llvm_bc}, 2465 {frontend::EmitHTML, OPT_emit_html}, 2466 {frontend::EmitLLVM, OPT_emit_llvm}, 2467 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2468 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2469 {frontend::EmitObj, OPT_emit_obj}, 2470 {frontend::ExtractAPI, OPT_extract_api}, 2471 2472 {frontend::FixIt, OPT_fixit_EQ}, 2473 {frontend::FixIt, OPT_fixit}, 2474 2475 {frontend::GenerateModule, OPT_emit_module}, 2476 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2477 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2478 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2479 {frontend::GeneratePCH, OPT_emit_pch}, 2480 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2481 {frontend::InitOnly, OPT_init_only}, 2482 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2483 {frontend::ModuleFileInfo, OPT_module_file_info}, 2484 {frontend::VerifyPCH, OPT_verify_pch}, 2485 {frontend::PrintPreamble, OPT_print_preamble}, 2486 {frontend::PrintPreprocessedInput, OPT_E}, 2487 {frontend::TemplightDump, OPT_templight_dump}, 2488 {frontend::RewriteMacros, OPT_rewrite_macros}, 2489 {frontend::RewriteObjC, OPT_rewrite_objc}, 2490 {frontend::RewriteTest, OPT_rewrite_test}, 2491 {frontend::RunAnalysis, OPT_analyze}, 2492 {frontend::MigrateSource, OPT_migrate}, 2493 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2494 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2495 OPT_print_dependency_directives_minimized_source}, 2496 }; 2497 2498 return Table; 2499 } 2500 2501 /// Maps command line option to frontend action. 2502 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2503 for (const auto &ActionOpt : getFrontendActionTable()) 2504 if (ActionOpt.second == Opt.getID()) 2505 return ActionOpt.first; 2506 2507 return None; 2508 } 2509 2510 /// Maps frontend action to command line option. 2511 static Optional<OptSpecifier> 2512 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2513 for (const auto &ActionOpt : getFrontendActionTable()) 2514 if (ActionOpt.first == ProgramAction) 2515 return OptSpecifier(ActionOpt.second); 2516 2517 return None; 2518 } 2519 2520 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2521 SmallVectorImpl<const char *> &Args, 2522 CompilerInvocation::StringAllocator SA, 2523 bool IsHeader) { 2524 const FrontendOptions &FrontendOpts = Opts; 2525 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2526 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2527 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2528 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2529 MERGER, EXTRACTOR, TABLE_INDEX) \ 2530 GENERATE_OPTION_WITH_MARSHALLING( \ 2531 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2532 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2533 #include "clang/Driver/Options.inc" 2534 #undef FRONTEND_OPTION_WITH_MARSHALLING 2535 2536 Optional<OptSpecifier> ProgramActionOpt = 2537 getProgramActionOpt(Opts.ProgramAction); 2538 2539 // Generating a simple flag covers most frontend actions. 2540 std::function<void()> GenerateProgramAction = [&]() { 2541 GenerateArg(Args, *ProgramActionOpt, SA); 2542 }; 2543 2544 if (!ProgramActionOpt) { 2545 // PluginAction is the only program action handled separately. 2546 assert(Opts.ProgramAction == frontend::PluginAction && 2547 "Frontend action without option."); 2548 GenerateProgramAction = [&]() { 2549 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2550 }; 2551 } 2552 2553 // FIXME: Simplify the complex 'AST dump' command line. 2554 if (Opts.ProgramAction == frontend::ASTDump) { 2555 GenerateProgramAction = [&]() { 2556 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2557 // marshalling infrastructure. 2558 2559 if (Opts.ASTDumpFormat != ADOF_Default) { 2560 StringRef Format; 2561 switch (Opts.ASTDumpFormat) { 2562 case ADOF_Default: 2563 llvm_unreachable("Default AST dump format."); 2564 case ADOF_JSON: 2565 Format = "json"; 2566 break; 2567 } 2568 2569 if (Opts.ASTDumpAll) 2570 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2571 if (Opts.ASTDumpDecls) 2572 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2573 } else { 2574 if (Opts.ASTDumpAll) 2575 GenerateArg(Args, OPT_ast_dump_all, SA); 2576 if (Opts.ASTDumpDecls) 2577 GenerateArg(Args, OPT_ast_dump, SA); 2578 } 2579 }; 2580 } 2581 2582 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2583 GenerateProgramAction = [&]() { 2584 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2585 }; 2586 } 2587 2588 GenerateProgramAction(); 2589 2590 for (const auto &PluginArgs : Opts.PluginArgs) { 2591 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2592 const char *Spelling = 2593 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2594 for (const auto &PluginArg : PluginArgs.second) 2595 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2596 } 2597 2598 for (const auto &Ext : Opts.ModuleFileExtensions) 2599 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2600 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2601 2602 if (!Opts.CodeCompletionAt.FileName.empty()) 2603 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2604 SA); 2605 2606 for (const auto &Plugin : Opts.Plugins) 2607 GenerateArg(Args, OPT_load, Plugin, SA); 2608 2609 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2610 2611 for (const auto &ModuleFile : Opts.ModuleFiles) 2612 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2613 2614 if (Opts.AuxTargetCPU) 2615 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2616 2617 if (Opts.AuxTargetFeatures) 2618 for (const auto &Feature : *Opts.AuxTargetFeatures) 2619 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2620 2621 { 2622 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2623 StringRef ModuleMap = 2624 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2625 StringRef HeaderUnit = ""; 2626 switch (Opts.DashX.getHeaderUnitKind()) { 2627 case InputKind::HeaderUnit_None: 2628 break; 2629 case InputKind::HeaderUnit_User: 2630 HeaderUnit = "-user"; 2631 break; 2632 case InputKind::HeaderUnit_System: 2633 HeaderUnit = "-system"; 2634 break; 2635 case InputKind::HeaderUnit_Abs: 2636 HeaderUnit = "-header-unit"; 2637 break; 2638 } 2639 StringRef Header = IsHeader ? "-header" : ""; 2640 2641 StringRef Lang; 2642 switch (Opts.DashX.getLanguage()) { 2643 case Language::C: 2644 Lang = "c"; 2645 break; 2646 case Language::OpenCL: 2647 Lang = "cl"; 2648 break; 2649 case Language::OpenCLCXX: 2650 Lang = "clcpp"; 2651 break; 2652 case Language::CUDA: 2653 Lang = "cuda"; 2654 break; 2655 case Language::HIP: 2656 Lang = "hip"; 2657 break; 2658 case Language::CXX: 2659 Lang = "c++"; 2660 break; 2661 case Language::ObjC: 2662 Lang = "objective-c"; 2663 break; 2664 case Language::ObjCXX: 2665 Lang = "objective-c++"; 2666 break; 2667 case Language::RenderScript: 2668 Lang = "renderscript"; 2669 break; 2670 case Language::Asm: 2671 Lang = "assembler-with-cpp"; 2672 break; 2673 case Language::Unknown: 2674 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2675 "Generating -x argument for unknown language (not precompiled)."); 2676 Lang = "ast"; 2677 break; 2678 case Language::LLVM_IR: 2679 Lang = "ir"; 2680 break; 2681 case Language::HLSL: 2682 Lang = "hlsl"; 2683 break; 2684 } 2685 2686 GenerateArg(Args, OPT_x, 2687 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2688 } 2689 2690 // OPT_INPUT has a unique class, generate it directly. 2691 for (const auto &Input : Opts.Inputs) 2692 Args.push_back(SA(Input.getFile())); 2693 } 2694 2695 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2696 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2697 unsigned NumErrorsBefore = Diags.getNumErrors(); 2698 2699 FrontendOptions &FrontendOpts = Opts; 2700 2701 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2702 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2703 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2704 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2705 MERGER, EXTRACTOR, TABLE_INDEX) \ 2706 PARSE_OPTION_WITH_MARSHALLING( \ 2707 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2708 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2709 #include "clang/Driver/Options.inc" 2710 #undef FRONTEND_OPTION_WITH_MARSHALLING 2711 2712 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2713 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2714 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2715 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2716 assert(ProgramAction && "Option specifier not in Action_Group."); 2717 2718 if (ProgramAction == frontend::ASTDump && 2719 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2720 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2721 .CaseLower("default", ADOF_Default) 2722 .CaseLower("json", ADOF_JSON) 2723 .Default(std::numeric_limits<unsigned>::max()); 2724 2725 if (Val != std::numeric_limits<unsigned>::max()) 2726 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2727 else { 2728 Diags.Report(diag::err_drv_invalid_value) 2729 << A->getAsString(Args) << A->getValue(); 2730 Opts.ASTDumpFormat = ADOF_Default; 2731 } 2732 } 2733 2734 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2735 Opts.FixItSuffix = A->getValue(); 2736 2737 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2738 StringRef ArgStr = 2739 Args.hasArg(OPT_interface_stub_version_EQ) 2740 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2741 : "ifs-v1"; 2742 if (ArgStr == "experimental-yaml-elf-v1" || 2743 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2744 ArgStr == "experimental-tapi-elf-v1") { 2745 std::string ErrorMessage = 2746 "Invalid interface stub format: " + ArgStr.str() + 2747 " is deprecated."; 2748 Diags.Report(diag::err_drv_invalid_value) 2749 << "Must specify a valid interface stub format type, ie: " 2750 "-interface-stub-version=ifs-v1" 2751 << ErrorMessage; 2752 ProgramAction = frontend::ParseSyntaxOnly; 2753 } else if (!ArgStr.startswith("ifs-")) { 2754 std::string ErrorMessage = 2755 "Invalid interface stub format: " + ArgStr.str() + "."; 2756 Diags.Report(diag::err_drv_invalid_value) 2757 << "Must specify a valid interface stub format type, ie: " 2758 "-interface-stub-version=ifs-v1" 2759 << ErrorMessage; 2760 ProgramAction = frontend::ParseSyntaxOnly; 2761 } 2762 } 2763 2764 Opts.ProgramAction = *ProgramAction; 2765 } 2766 2767 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2768 Opts.Plugins.emplace_back(A->getValue(0)); 2769 Opts.ProgramAction = frontend::PluginAction; 2770 Opts.ActionName = A->getValue(); 2771 } 2772 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2773 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2774 2775 for (const std::string &Arg : 2776 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2777 std::string BlockName; 2778 unsigned MajorVersion; 2779 unsigned MinorVersion; 2780 bool Hashed; 2781 std::string UserInfo; 2782 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2783 MinorVersion, Hashed, UserInfo)) { 2784 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2785 2786 continue; 2787 } 2788 2789 // Add the testing module file extension. 2790 Opts.ModuleFileExtensions.push_back( 2791 std::make_shared<TestModuleFileExtension>( 2792 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2793 } 2794 2795 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2796 Opts.CodeCompletionAt = 2797 ParsedSourceLocation::FromString(A->getValue()); 2798 if (Opts.CodeCompletionAt.FileName.empty()) 2799 Diags.Report(diag::err_drv_invalid_value) 2800 << A->getAsString(Args) << A->getValue(); 2801 } 2802 2803 Opts.Plugins = Args.getAllArgValues(OPT_load); 2804 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2805 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2806 // Only the -fmodule-file=<file> form. 2807 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2808 StringRef Val = A->getValue(); 2809 if (!Val.contains('=')) 2810 Opts.ModuleFiles.push_back(std::string(Val)); 2811 } 2812 2813 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2814 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2815 << "-emit-module"; 2816 2817 if (Args.hasArg(OPT_aux_target_cpu)) 2818 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2819 if (Args.hasArg(OPT_aux_target_feature)) 2820 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2821 2822 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2823 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2824 Diags.Report(diag::err_drv_argument_not_allowed_with) 2825 << "ARC migration" << "ObjC migration"; 2826 } 2827 2828 InputKind DashX(Language::Unknown); 2829 if (const Arg *A = Args.getLastArg(OPT_x)) { 2830 StringRef XValue = A->getValue(); 2831 2832 // Parse suffixes: 2833 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2834 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2835 bool Preprocessed = XValue.consume_back("-cpp-output"); 2836 bool ModuleMap = XValue.consume_back("-module-map"); 2837 // Detect and consume the header indicator. 2838 bool IsHeader = 2839 XValue != "precompiled-header" && XValue.consume_back("-header"); 2840 2841 // If we have c++-{user,system}-header, that indicates a header unit input 2842 // likewise, if the user put -fmodule-header together with a header with an 2843 // absolute path (header-unit-header). 2844 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2845 if (IsHeader || Preprocessed) { 2846 if (XValue.consume_back("-header-unit")) 2847 HUK = InputKind::HeaderUnit_Abs; 2848 else if (XValue.consume_back("-system")) 2849 HUK = InputKind::HeaderUnit_System; 2850 else if (XValue.consume_back("-user")) 2851 HUK = InputKind::HeaderUnit_User; 2852 } 2853 2854 // The value set by this processing is an un-preprocessed source which is 2855 // not intended to be a module map or header unit. 2856 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2857 HUK == InputKind::HeaderUnit_None; 2858 2859 // Principal languages. 2860 DashX = llvm::StringSwitch<InputKind>(XValue) 2861 .Case("c", Language::C) 2862 .Case("cl", Language::OpenCL) 2863 .Case("clcpp", Language::OpenCLCXX) 2864 .Case("cuda", Language::CUDA) 2865 .Case("hip", Language::HIP) 2866 .Case("c++", Language::CXX) 2867 .Case("objective-c", Language::ObjC) 2868 .Case("objective-c++", Language::ObjCXX) 2869 .Case("renderscript", Language::RenderScript) 2870 .Case("hlsl", Language::HLSL) 2871 .Default(Language::Unknown); 2872 2873 // "objc[++]-cpp-output" is an acceptable synonym for 2874 // "objective-c[++]-cpp-output". 2875 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2876 HUK == InputKind::HeaderUnit_None) 2877 DashX = llvm::StringSwitch<InputKind>(XValue) 2878 .Case("objc", Language::ObjC) 2879 .Case("objc++", Language::ObjCXX) 2880 .Default(Language::Unknown); 2881 2882 // Some special cases cannot be combined with suffixes. 2883 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2884 HUK == InputKind::HeaderUnit_None) 2885 DashX = llvm::StringSwitch<InputKind>(XValue) 2886 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2887 .Case("assembler-with-cpp", Language::Asm) 2888 .Cases("ast", "pcm", "precompiled-header", 2889 InputKind(Language::Unknown, InputKind::Precompiled)) 2890 .Case("ir", Language::LLVM_IR) 2891 .Default(Language::Unknown); 2892 2893 if (DashX.isUnknown()) 2894 Diags.Report(diag::err_drv_invalid_value) 2895 << A->getAsString(Args) << A->getValue(); 2896 2897 if (Preprocessed) 2898 DashX = DashX.getPreprocessed(); 2899 // A regular header is considered mutually exclusive with a header unit. 2900 if (HUK != InputKind::HeaderUnit_None) { 2901 DashX = DashX.withHeaderUnit(HUK); 2902 IsHeaderFile = true; 2903 } else if (IsHeaderFile) 2904 DashX = DashX.getHeader(); 2905 if (ModuleMap) 2906 DashX = DashX.withFormat(InputKind::ModuleMap); 2907 } 2908 2909 // '-' is the default input if none is given. 2910 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2911 Opts.Inputs.clear(); 2912 if (Inputs.empty()) 2913 Inputs.push_back("-"); 2914 2915 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2916 Inputs.size() > 1) 2917 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2918 2919 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2920 InputKind IK = DashX; 2921 if (IK.isUnknown()) { 2922 IK = FrontendOptions::getInputKindForExtension( 2923 StringRef(Inputs[i]).rsplit('.').second); 2924 // FIXME: Warn on this? 2925 if (IK.isUnknown()) 2926 IK = Language::C; 2927 // FIXME: Remove this hack. 2928 if (i == 0) 2929 DashX = IK; 2930 } 2931 2932 bool IsSystem = false; 2933 2934 // The -emit-module action implicitly takes a module map. 2935 if (Opts.ProgramAction == frontend::GenerateModule && 2936 IK.getFormat() == InputKind::Source) { 2937 IK = IK.withFormat(InputKind::ModuleMap); 2938 IsSystem = Opts.IsSystemModule; 2939 } 2940 2941 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2942 } 2943 2944 Opts.DashX = DashX; 2945 2946 return Diags.getNumErrors() == NumErrorsBefore; 2947 } 2948 2949 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2950 void *MainAddr) { 2951 std::string ClangExecutable = 2952 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2953 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2954 } 2955 2956 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2957 SmallVectorImpl<const char *> &Args, 2958 CompilerInvocation::StringAllocator SA) { 2959 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2960 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2961 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2962 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2963 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2964 MERGER, EXTRACTOR, TABLE_INDEX) \ 2965 GENERATE_OPTION_WITH_MARSHALLING( \ 2966 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2967 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2968 #include "clang/Driver/Options.inc" 2969 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2970 2971 if (Opts.UseLibcxx) 2972 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2973 2974 if (!Opts.ModuleCachePath.empty()) 2975 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2976 2977 for (const auto &File : Opts.PrebuiltModuleFiles) 2978 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2979 2980 for (const auto &Path : Opts.PrebuiltModulePaths) 2981 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2982 2983 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2984 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2985 2986 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2987 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2988 llvm::Optional<bool> IsFramework, 2989 llvm::Optional<bool> IgnoreSysRoot) { 2990 return llvm::is_contained(Groups, Entry.Group) && 2991 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2992 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2993 }; 2994 2995 auto It = Opts.UserEntries.begin(); 2996 auto End = Opts.UserEntries.end(); 2997 2998 // Add -I..., -F..., and -index-header-map options in order. 2999 for (; It < End && 3000 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 3001 ++It) { 3002 OptSpecifier Opt = [It, Matches]() { 3003 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3004 return OPT_F; 3005 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3006 return OPT_I; 3007 if (Matches(*It, frontend::Angled, true, true)) 3008 return OPT_F; 3009 if (Matches(*It, frontend::Angled, false, true)) 3010 return OPT_I; 3011 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3012 }(); 3013 3014 if (It->Group == frontend::IndexHeaderMap) 3015 GenerateArg(Args, OPT_index_header_map, SA); 3016 GenerateArg(Args, Opt, It->Path, SA); 3017 }; 3018 3019 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3020 // have already been generated as "-I[xx]yy". If that's the case, their 3021 // position on command line was such that this has no semantic impact on 3022 // include paths. 3023 for (; It < End && 3024 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3025 ++It) { 3026 OptSpecifier Opt = 3027 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3028 GenerateArg(Args, Opt, It->Path, SA); 3029 } 3030 3031 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3032 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3033 // command line was such that this has no semantic impact on include paths. 3034 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3035 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3036 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3037 GenerateArg(Args, OPT_iquote, It->Path, SA); 3038 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3039 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3040 It->Path, SA); 3041 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3042 GenerateArg(Args, OPT_iframework, It->Path, SA); 3043 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3044 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3045 3046 // Add the paths for the various language specific isystem flags. 3047 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3048 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3049 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3050 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3051 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3052 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3053 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3054 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3055 3056 // Add the internal paths from a driver that detects standard include paths. 3057 // Note: Some paths that came from "-internal-isystem" arguments may have 3058 // already been generated as "-isystem". If that's the case, their position on 3059 // command line was such that this has no semantic impact on include paths. 3060 for (; It < End && 3061 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3062 ++It) { 3063 OptSpecifier Opt = It->Group == frontend::System 3064 ? OPT_internal_isystem 3065 : OPT_internal_externc_isystem; 3066 GenerateArg(Args, Opt, It->Path, SA); 3067 } 3068 3069 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3070 3071 // Add the path prefixes which are implicitly treated as being system headers. 3072 for (const auto &P : Opts.SystemHeaderPrefixes) { 3073 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3074 : OPT_no_system_header_prefix; 3075 GenerateArg(Args, Opt, P.Prefix, SA); 3076 } 3077 3078 for (const std::string &F : Opts.VFSOverlayFiles) 3079 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3080 } 3081 3082 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3083 DiagnosticsEngine &Diags, 3084 const std::string &WorkingDir) { 3085 unsigned NumErrorsBefore = Diags.getNumErrors(); 3086 3087 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3088 3089 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3090 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3091 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3092 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3093 MERGER, EXTRACTOR, TABLE_INDEX) \ 3094 PARSE_OPTION_WITH_MARSHALLING( \ 3095 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3096 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3097 #include "clang/Driver/Options.inc" 3098 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3099 3100 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3101 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3102 3103 // Canonicalize -fmodules-cache-path before storing it. 3104 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3105 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3106 if (WorkingDir.empty()) 3107 llvm::sys::fs::make_absolute(P); 3108 else 3109 llvm::sys::fs::make_absolute(WorkingDir, P); 3110 } 3111 llvm::sys::path::remove_dots(P); 3112 Opts.ModuleCachePath = std::string(P.str()); 3113 3114 // Only the -fmodule-file=<name>=<file> form. 3115 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3116 StringRef Val = A->getValue(); 3117 if (Val.contains('=')) { 3118 auto Split = Val.split('='); 3119 Opts.PrebuiltModuleFiles.insert( 3120 {std::string(Split.first), std::string(Split.second)}); 3121 } 3122 } 3123 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3124 Opts.AddPrebuiltModulePath(A->getValue()); 3125 3126 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3127 StringRef MacroDef = A->getValue(); 3128 Opts.ModulesIgnoreMacros.insert( 3129 llvm::CachedHashString(MacroDef.split('=').first)); 3130 } 3131 3132 // Add -I..., -F..., and -index-header-map options in order. 3133 bool IsIndexHeaderMap = false; 3134 bool IsSysrootSpecified = 3135 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3136 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3137 if (A->getOption().matches(OPT_index_header_map)) { 3138 // -index-header-map applies to the next -I or -F. 3139 IsIndexHeaderMap = true; 3140 continue; 3141 } 3142 3143 frontend::IncludeDirGroup Group = 3144 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3145 3146 bool IsFramework = A->getOption().matches(OPT_F); 3147 std::string Path = A->getValue(); 3148 3149 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3150 SmallString<32> Buffer; 3151 llvm::sys::path::append(Buffer, Opts.Sysroot, 3152 llvm::StringRef(A->getValue()).substr(1)); 3153 Path = std::string(Buffer.str()); 3154 } 3155 3156 Opts.AddPath(Path, Group, IsFramework, 3157 /*IgnoreSysroot*/ true); 3158 IsIndexHeaderMap = false; 3159 } 3160 3161 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3162 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3163 for (const auto *A : 3164 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3165 if (A->getOption().matches(OPT_iprefix)) 3166 Prefix = A->getValue(); 3167 else if (A->getOption().matches(OPT_iwithprefix)) 3168 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3169 else 3170 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3171 } 3172 3173 for (const auto *A : Args.filtered(OPT_idirafter)) 3174 Opts.AddPath(A->getValue(), frontend::After, false, true); 3175 for (const auto *A : Args.filtered(OPT_iquote)) 3176 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3177 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3178 Opts.AddPath(A->getValue(), frontend::System, false, 3179 !A->getOption().matches(OPT_iwithsysroot)); 3180 for (const auto *A : Args.filtered(OPT_iframework)) 3181 Opts.AddPath(A->getValue(), frontend::System, true, true); 3182 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3183 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3184 /*IgnoreSysRoot=*/false); 3185 3186 // Add the paths for the various language specific isystem flags. 3187 for (const auto *A : Args.filtered(OPT_c_isystem)) 3188 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3189 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3190 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3191 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3192 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3193 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3194 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3195 3196 // Add the internal paths from a driver that detects standard include paths. 3197 for (const auto *A : 3198 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3199 frontend::IncludeDirGroup Group = frontend::System; 3200 if (A->getOption().matches(OPT_internal_externc_isystem)) 3201 Group = frontend::ExternCSystem; 3202 Opts.AddPath(A->getValue(), Group, false, true); 3203 } 3204 3205 // Add the path prefixes which are implicitly treated as being system headers. 3206 for (const auto *A : 3207 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3208 Opts.AddSystemHeaderPrefix( 3209 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3210 3211 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3212 Opts.AddVFSOverlayFile(A->getValue()); 3213 3214 return Diags.getNumErrors() == NumErrorsBefore; 3215 } 3216 3217 /// Check if input file kind and language standard are compatible. 3218 static bool IsInputCompatibleWithStandard(InputKind IK, 3219 const LangStandard &S) { 3220 switch (IK.getLanguage()) { 3221 case Language::Unknown: 3222 case Language::LLVM_IR: 3223 llvm_unreachable("should not parse language flags for this input"); 3224 3225 case Language::C: 3226 case Language::ObjC: 3227 case Language::RenderScript: 3228 return S.getLanguage() == Language::C; 3229 3230 case Language::OpenCL: 3231 return S.getLanguage() == Language::OpenCL || 3232 S.getLanguage() == Language::OpenCLCXX; 3233 3234 case Language::OpenCLCXX: 3235 return S.getLanguage() == Language::OpenCLCXX; 3236 3237 case Language::CXX: 3238 case Language::ObjCXX: 3239 return S.getLanguage() == Language::CXX; 3240 3241 case Language::CUDA: 3242 // FIXME: What -std= values should be permitted for CUDA compilations? 3243 return S.getLanguage() == Language::CUDA || 3244 S.getLanguage() == Language::CXX; 3245 3246 case Language::HIP: 3247 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3248 3249 case Language::Asm: 3250 // Accept (and ignore) all -std= values. 3251 // FIXME: The -std= value is not ignored; it affects the tokenization 3252 // and preprocessing rules if we're preprocessing this asm input. 3253 return true; 3254 3255 case Language::HLSL: 3256 return S.getLanguage() == Language::HLSL; 3257 } 3258 3259 llvm_unreachable("unexpected input language"); 3260 } 3261 3262 /// Get language name for given input kind. 3263 static StringRef GetInputKindName(InputKind IK) { 3264 switch (IK.getLanguage()) { 3265 case Language::C: 3266 return "C"; 3267 case Language::ObjC: 3268 return "Objective-C"; 3269 case Language::CXX: 3270 return "C++"; 3271 case Language::ObjCXX: 3272 return "Objective-C++"; 3273 case Language::OpenCL: 3274 return "OpenCL"; 3275 case Language::OpenCLCXX: 3276 return "C++ for OpenCL"; 3277 case Language::CUDA: 3278 return "CUDA"; 3279 case Language::RenderScript: 3280 return "RenderScript"; 3281 case Language::HIP: 3282 return "HIP"; 3283 3284 case Language::Asm: 3285 return "Asm"; 3286 case Language::LLVM_IR: 3287 return "LLVM IR"; 3288 3289 case Language::HLSL: 3290 return "HLSL"; 3291 3292 case Language::Unknown: 3293 break; 3294 } 3295 llvm_unreachable("unknown input language"); 3296 } 3297 3298 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3299 SmallVectorImpl<const char *> &Args, 3300 StringAllocator SA, 3301 const llvm::Triple &T, InputKind IK) { 3302 if (IK.getFormat() == InputKind::Precompiled || 3303 IK.getLanguage() == Language::LLVM_IR) { 3304 if (Opts.ObjCAutoRefCount) 3305 GenerateArg(Args, OPT_fobjc_arc, SA); 3306 if (Opts.PICLevel != 0) 3307 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3308 if (Opts.PIE) 3309 GenerateArg(Args, OPT_pic_is_pie, SA); 3310 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3311 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3312 3313 return; 3314 } 3315 3316 OptSpecifier StdOpt; 3317 switch (Opts.LangStd) { 3318 case LangStandard::lang_opencl10: 3319 case LangStandard::lang_opencl11: 3320 case LangStandard::lang_opencl12: 3321 case LangStandard::lang_opencl20: 3322 case LangStandard::lang_opencl30: 3323 case LangStandard::lang_openclcpp10: 3324 case LangStandard::lang_openclcpp2021: 3325 StdOpt = OPT_cl_std_EQ; 3326 break; 3327 default: 3328 StdOpt = OPT_std_EQ; 3329 break; 3330 } 3331 3332 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3333 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3334 3335 if (Opts.IncludeDefaultHeader) 3336 GenerateArg(Args, OPT_finclude_default_header, SA); 3337 if (Opts.DeclareOpenCLBuiltins) 3338 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3339 3340 const LangOptions *LangOpts = &Opts; 3341 3342 #define LANG_OPTION_WITH_MARSHALLING( \ 3343 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3344 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3345 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3346 MERGER, EXTRACTOR, TABLE_INDEX) \ 3347 GENERATE_OPTION_WITH_MARSHALLING( \ 3348 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3349 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3350 #include "clang/Driver/Options.inc" 3351 #undef LANG_OPTION_WITH_MARSHALLING 3352 3353 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3354 3355 if (Opts.ObjC) { 3356 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3357 3358 if (Opts.GC == LangOptions::GCOnly) 3359 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3360 else if (Opts.GC == LangOptions::HybridGC) 3361 GenerateArg(Args, OPT_fobjc_gc, SA); 3362 else if (Opts.ObjCAutoRefCount == 1) 3363 GenerateArg(Args, OPT_fobjc_arc, SA); 3364 3365 if (Opts.ObjCWeakRuntime) 3366 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3367 3368 if (Opts.ObjCWeak) 3369 GenerateArg(Args, OPT_fobjc_weak, SA); 3370 3371 if (Opts.ObjCSubscriptingLegacyRuntime) 3372 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3373 } 3374 3375 if (Opts.GNUCVersion != 0) { 3376 unsigned Major = Opts.GNUCVersion / 100 / 100; 3377 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3378 unsigned Patch = Opts.GNUCVersion % 100; 3379 GenerateArg(Args, OPT_fgnuc_version_EQ, 3380 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3381 } 3382 3383 if (Opts.IgnoreXCOFFVisibility) 3384 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3385 3386 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3387 GenerateArg(Args, OPT_ftrapv, SA); 3388 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3389 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3390 GenerateArg(Args, OPT_fwrapv, SA); 3391 } 3392 3393 if (Opts.MSCompatibilityVersion != 0) { 3394 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3395 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3396 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3397 GenerateArg(Args, OPT_fms_compatibility_version, 3398 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3399 } 3400 3401 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3402 if (!Opts.Trigraphs) 3403 GenerateArg(Args, OPT_fno_trigraphs, SA); 3404 } else { 3405 if (Opts.Trigraphs) 3406 GenerateArg(Args, OPT_ftrigraphs, SA); 3407 } 3408 3409 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3410 GenerateArg(Args, OPT_fblocks, SA); 3411 3412 if (Opts.ConvergentFunctions && 3413 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3414 GenerateArg(Args, OPT_fconvergent_functions, SA); 3415 3416 if (Opts.NoBuiltin && !Opts.Freestanding) 3417 GenerateArg(Args, OPT_fno_builtin, SA); 3418 3419 if (!Opts.NoBuiltin) 3420 for (const auto &Func : Opts.NoBuiltinFuncs) 3421 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3422 3423 if (Opts.LongDoubleSize == 128) 3424 GenerateArg(Args, OPT_mlong_double_128, SA); 3425 else if (Opts.LongDoubleSize == 64) 3426 GenerateArg(Args, OPT_mlong_double_64, SA); 3427 else if (Opts.LongDoubleSize == 80) 3428 GenerateArg(Args, OPT_mlong_double_80, SA); 3429 3430 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3431 3432 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3433 // '-fopenmp-targets='. 3434 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3435 GenerateArg(Args, OPT_fopenmp, SA); 3436 3437 if (Opts.OpenMP != 50) 3438 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3439 3440 if (!Opts.OpenMPUseTLS) 3441 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3442 3443 if (Opts.OpenMPIsDevice) 3444 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3445 3446 if (Opts.OpenMPIRBuilder) 3447 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3448 } 3449 3450 if (Opts.OpenMPSimd) { 3451 GenerateArg(Args, OPT_fopenmp_simd, SA); 3452 3453 if (Opts.OpenMP != 50) 3454 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3455 } 3456 3457 if (Opts.OpenMPThreadSubscription) 3458 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3459 3460 if (Opts.OpenMPTeamSubscription) 3461 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3462 3463 if (Opts.OpenMPTargetDebug != 0) 3464 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3465 Twine(Opts.OpenMPTargetDebug), SA); 3466 3467 if (Opts.OpenMPCUDANumSMs != 0) 3468 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3469 Twine(Opts.OpenMPCUDANumSMs), SA); 3470 3471 if (Opts.OpenMPCUDABlocksPerSM != 0) 3472 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3473 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3474 3475 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3476 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3477 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3478 3479 if (!Opts.OMPTargetTriples.empty()) { 3480 std::string Targets; 3481 llvm::raw_string_ostream OS(Targets); 3482 llvm::interleave( 3483 Opts.OMPTargetTriples, OS, 3484 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3485 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3486 } 3487 3488 if (!Opts.OMPHostIRFile.empty()) 3489 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3490 3491 if (Opts.OpenMPCUDAMode) 3492 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3493 3494 if (Opts.OpenMPCUDAForceFullRuntime) 3495 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3496 3497 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3498 // generated from CodeGenOptions. 3499 3500 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3501 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3502 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3503 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3504 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3505 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3506 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3507 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3508 3509 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3510 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3511 3512 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3513 for (const std::string &F : Opts.NoSanitizeFiles) 3514 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3515 3516 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3517 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3518 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3519 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3520 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3521 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3522 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3523 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3524 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3525 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3526 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3527 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3528 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3529 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3530 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3531 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3532 3533 if (Opts.getSignReturnAddressScope() == 3534 LangOptions::SignReturnAddressScopeKind::All) 3535 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3536 else if (Opts.getSignReturnAddressScope() == 3537 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3538 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3539 3540 if (Opts.getSignReturnAddressKey() == 3541 LangOptions::SignReturnAddressKeyKind::BKey) 3542 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3543 3544 if (Opts.CXXABI) 3545 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3546 SA); 3547 3548 if (Opts.RelativeCXXABIVTables) 3549 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3550 else 3551 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3552 3553 if (Opts.UseTargetPathSeparator) 3554 GenerateArg(Args, OPT_ffile_reproducible, SA); 3555 else 3556 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3557 3558 for (const auto &MP : Opts.MacroPrefixMap) 3559 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3560 3561 if (!Opts.RandstructSeed.empty()) 3562 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3563 } 3564 3565 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3566 InputKind IK, const llvm::Triple &T, 3567 std::vector<std::string> &Includes, 3568 DiagnosticsEngine &Diags) { 3569 unsigned NumErrorsBefore = Diags.getNumErrors(); 3570 3571 if (IK.getFormat() == InputKind::Precompiled || 3572 IK.getLanguage() == Language::LLVM_IR) { 3573 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3574 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3575 // what the input type is. 3576 if (Args.hasArg(OPT_fobjc_arc)) 3577 Opts.ObjCAutoRefCount = 1; 3578 // PICLevel and PIELevel are needed during code generation and this should 3579 // be set regardless of the input type. 3580 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3581 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3582 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3583 Diags, Opts.Sanitize); 3584 3585 return Diags.getNumErrors() == NumErrorsBefore; 3586 } 3587 3588 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3589 // FIXME: Should we really be parsing this for an Language::Asm input? 3590 3591 // FIXME: Cleanup per-file based stuff. 3592 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3593 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3594 LangStd = LangStandard::getLangKind(A->getValue()); 3595 if (LangStd == LangStandard::lang_unspecified) { 3596 Diags.Report(diag::err_drv_invalid_value) 3597 << A->getAsString(Args) << A->getValue(); 3598 // Report supported standards with short description. 3599 for (unsigned KindValue = 0; 3600 KindValue != LangStandard::lang_unspecified; 3601 ++KindValue) { 3602 const LangStandard &Std = LangStandard::getLangStandardForKind( 3603 static_cast<LangStandard::Kind>(KindValue)); 3604 if (IsInputCompatibleWithStandard(IK, Std)) { 3605 auto Diag = Diags.Report(diag::note_drv_use_standard); 3606 Diag << Std.getName() << Std.getDescription(); 3607 unsigned NumAliases = 0; 3608 #define LANGSTANDARD(id, name, lang, desc, features) 3609 #define LANGSTANDARD_ALIAS(id, alias) \ 3610 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3611 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3612 #include "clang/Basic/LangStandards.def" 3613 Diag << NumAliases; 3614 #define LANGSTANDARD(id, name, lang, desc, features) 3615 #define LANGSTANDARD_ALIAS(id, alias) \ 3616 if (KindValue == LangStandard::lang_##id) Diag << alias; 3617 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3618 #include "clang/Basic/LangStandards.def" 3619 } 3620 } 3621 } else { 3622 // Valid standard, check to make sure language and standard are 3623 // compatible. 3624 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3625 if (!IsInputCompatibleWithStandard(IK, Std)) { 3626 Diags.Report(diag::err_drv_argument_not_allowed_with) 3627 << A->getAsString(Args) << GetInputKindName(IK); 3628 } 3629 } 3630 } 3631 3632 // -cl-std only applies for OpenCL language standards. 3633 // Override the -std option in this case. 3634 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3635 LangStandard::Kind OpenCLLangStd 3636 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3637 .Cases("cl", "CL", LangStandard::lang_opencl10) 3638 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3639 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3640 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3641 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3642 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3643 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3644 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3645 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3646 .Default(LangStandard::lang_unspecified); 3647 3648 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3649 Diags.Report(diag::err_drv_invalid_value) 3650 << A->getAsString(Args) << A->getValue(); 3651 } 3652 else 3653 LangStd = OpenCLLangStd; 3654 } 3655 3656 // These need to be parsed now. They are used to set OpenCL defaults. 3657 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3658 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3659 3660 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3661 3662 // The key paths of codegen options defined in Options.td start with 3663 // "LangOpts->". Let's provide the expected variable name and type. 3664 LangOptions *LangOpts = &Opts; 3665 3666 #define LANG_OPTION_WITH_MARSHALLING( \ 3667 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3668 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3669 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3670 MERGER, EXTRACTOR, TABLE_INDEX) \ 3671 PARSE_OPTION_WITH_MARSHALLING( \ 3672 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3673 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3674 #include "clang/Driver/Options.inc" 3675 #undef LANG_OPTION_WITH_MARSHALLING 3676 3677 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3678 StringRef Name = A->getValue(); 3679 if (Name == "full" || Name == "branch") { 3680 Opts.CFProtectionBranch = 1; 3681 } 3682 } 3683 3684 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3685 !Args.hasArg(OPT_sycl_std_EQ)) { 3686 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3687 // provide -sycl-std=, we want to default it to whatever the default SYCL 3688 // version is. I could not find a way to express this with the options 3689 // tablegen because we still want this value to be SYCL_None when the user 3690 // is not in device or host mode. 3691 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3692 } 3693 3694 if (Opts.ObjC) { 3695 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3696 StringRef value = arg->getValue(); 3697 if (Opts.ObjCRuntime.tryParse(value)) 3698 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3699 } 3700 3701 if (Args.hasArg(OPT_fobjc_gc_only)) 3702 Opts.setGC(LangOptions::GCOnly); 3703 else if (Args.hasArg(OPT_fobjc_gc)) 3704 Opts.setGC(LangOptions::HybridGC); 3705 else if (Args.hasArg(OPT_fobjc_arc)) { 3706 Opts.ObjCAutoRefCount = 1; 3707 if (!Opts.ObjCRuntime.allowsARC()) 3708 Diags.Report(diag::err_arc_unsupported_on_runtime); 3709 } 3710 3711 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3712 // whether the feature is actually enabled. This is predominantly 3713 // determined by -fobjc-runtime, but we allow it to be overridden 3714 // from the command line for testing purposes. 3715 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3716 Opts.ObjCWeakRuntime = 1; 3717 else 3718 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3719 3720 // ObjCWeak determines whether __weak is actually enabled. 3721 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3722 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3723 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3724 assert(!Opts.ObjCWeak); 3725 } else if (Opts.getGC() != LangOptions::NonGC) { 3726 Diags.Report(diag::err_objc_weak_with_gc); 3727 } else if (!Opts.ObjCWeakRuntime) { 3728 Diags.Report(diag::err_objc_weak_unsupported); 3729 } else { 3730 Opts.ObjCWeak = 1; 3731 } 3732 } else if (Opts.ObjCAutoRefCount) { 3733 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3734 } 3735 3736 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3737 Opts.ObjCSubscriptingLegacyRuntime = 3738 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3739 } 3740 3741 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3742 // Check that the version has 1 to 3 components and the minor and patch 3743 // versions fit in two decimal digits. 3744 VersionTuple GNUCVer; 3745 bool Invalid = GNUCVer.tryParse(A->getValue()); 3746 unsigned Major = GNUCVer.getMajor(); 3747 unsigned Minor = GNUCVer.getMinor().value_or(0); 3748 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3749 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3750 Diags.Report(diag::err_drv_invalid_value) 3751 << A->getAsString(Args) << A->getValue(); 3752 } 3753 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3754 } 3755 3756 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3757 Opts.IgnoreXCOFFVisibility = 1; 3758 3759 if (Args.hasArg(OPT_ftrapv)) { 3760 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3761 // Set the handler, if one is specified. 3762 Opts.OverflowHandler = 3763 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3764 } 3765 else if (Args.hasArg(OPT_fwrapv)) 3766 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3767 3768 Opts.MSCompatibilityVersion = 0; 3769 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3770 VersionTuple VT; 3771 if (VT.tryParse(A->getValue())) 3772 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3773 << A->getValue(); 3774 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3775 VT.getMinor().value_or(0) * 100000 + 3776 VT.getSubminor().value_or(0); 3777 } 3778 3779 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3780 // is specified, or -std is set to a conforming mode. 3781 // Trigraphs are disabled by default in c++1z onwards. 3782 // For z/OS, trigraphs are enabled by default (without regard to the above). 3783 Opts.Trigraphs = 3784 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3785 Opts.Trigraphs = 3786 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3787 3788 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3789 && Opts.OpenCLVersion == 200); 3790 3791 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3792 Opts.SYCLIsDevice || 3793 Args.hasArg(OPT_fconvergent_functions); 3794 3795 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3796 if (!Opts.NoBuiltin) 3797 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3798 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3799 if (A->getOption().matches(options::OPT_mlong_double_64)) 3800 Opts.LongDoubleSize = 64; 3801 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3802 Opts.LongDoubleSize = 80; 3803 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3804 Opts.LongDoubleSize = 128; 3805 else 3806 Opts.LongDoubleSize = 0; 3807 } 3808 if (Opts.FastRelaxedMath) 3809 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3810 3811 llvm::sort(Opts.ModuleFeatures); 3812 3813 // -mrtd option 3814 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3815 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3816 Diags.Report(diag::err_drv_argument_not_allowed_with) 3817 << A->getSpelling() << "-fdefault-calling-conv"; 3818 else { 3819 if (T.getArch() != llvm::Triple::x86) 3820 Diags.Report(diag::err_drv_argument_not_allowed_with) 3821 << A->getSpelling() << T.getTriple(); 3822 else 3823 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3824 } 3825 } 3826 3827 // Check if -fopenmp is specified and set default version to 5.0. 3828 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3829 // Check if -fopenmp-simd is specified. 3830 bool IsSimdSpecified = 3831 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3832 /*Default=*/false); 3833 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3834 Opts.OpenMPUseTLS = 3835 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3836 Opts.OpenMPIsDevice = 3837 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3838 Opts.OpenMPIRBuilder = 3839 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3840 bool IsTargetSpecified = 3841 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3842 3843 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3844 3845 if (Opts.OpenMP || Opts.OpenMPSimd) { 3846 if (int Version = getLastArgIntValue( 3847 Args, OPT_fopenmp_version_EQ, 3848 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3849 Opts.OpenMP = Version; 3850 // Provide diagnostic when a given target is not expected to be an OpenMP 3851 // device or host. 3852 if (!Opts.OpenMPIsDevice) { 3853 switch (T.getArch()) { 3854 default: 3855 break; 3856 // Add unsupported host targets here: 3857 case llvm::Triple::nvptx: 3858 case llvm::Triple::nvptx64: 3859 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3860 break; 3861 } 3862 } 3863 } 3864 3865 // Set the flag to prevent the implementation from emitting device exception 3866 // handling code for those requiring so. 3867 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3868 Opts.OpenCLCPlusPlus) { 3869 3870 Opts.Exceptions = 0; 3871 Opts.CXXExceptions = 0; 3872 } 3873 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3874 Opts.OpenMPCUDANumSMs = 3875 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3876 Opts.OpenMPCUDANumSMs, Diags); 3877 Opts.OpenMPCUDABlocksPerSM = 3878 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3879 Opts.OpenMPCUDABlocksPerSM, Diags); 3880 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3881 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3882 Opts.OpenMPCUDAReductionBufNum, Diags); 3883 } 3884 3885 // Set the value of the debugging flag used in the new offloading device RTL. 3886 // Set either by a specific value or to a default if not specified. 3887 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3888 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3889 Opts.OpenMPTargetDebug = getLastArgIntValue( 3890 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3891 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3892 Opts.OpenMPTargetDebug = 1; 3893 } 3894 3895 if (Opts.OpenMPIsDevice) { 3896 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3897 Opts.OpenMPTeamSubscription = true; 3898 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3899 Opts.OpenMPThreadSubscription = true; 3900 } 3901 3902 // Get the OpenMP target triples if any. 3903 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3904 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3905 auto getArchPtrSize = [](const llvm::Triple &T) { 3906 if (T.isArch16Bit()) 3907 return Arch16Bit; 3908 if (T.isArch32Bit()) 3909 return Arch32Bit; 3910 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3911 return Arch64Bit; 3912 }; 3913 3914 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3915 llvm::Triple TT(A->getValue(i)); 3916 3917 if (TT.getArch() == llvm::Triple::UnknownArch || 3918 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3919 TT.getArch() == llvm::Triple::nvptx || 3920 TT.getArch() == llvm::Triple::nvptx64 || 3921 TT.getArch() == llvm::Triple::amdgcn || 3922 TT.getArch() == llvm::Triple::x86 || 3923 TT.getArch() == llvm::Triple::x86_64)) 3924 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3925 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3926 Diags.Report(diag::err_drv_incompatible_omp_arch) 3927 << A->getValue(i) << T.str(); 3928 else 3929 Opts.OMPTargetTriples.push_back(TT); 3930 } 3931 } 3932 3933 // Get OpenMP host file path if any and report if a non existent file is 3934 // found 3935 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3936 Opts.OMPHostIRFile = A->getValue(); 3937 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3938 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3939 << Opts.OMPHostIRFile; 3940 } 3941 3942 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3943 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3944 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3945 3946 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3947 Opts.OpenMPCUDAForceFullRuntime = 3948 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3949 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3950 3951 // FIXME: Eliminate this dependency. 3952 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3953 OptSize = getOptimizationLevelSize(Args); 3954 Opts.Optimize = Opt != 0; 3955 Opts.OptimizeSize = OptSize != 0; 3956 3957 // This is the __NO_INLINE__ define, which just depends on things like the 3958 // optimization level and -fno-inline, not actually whether the backend has 3959 // inlining enabled. 3960 Opts.NoInlineDefine = !Opts.Optimize; 3961 if (Arg *InlineArg = Args.getLastArg( 3962 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3963 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3964 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3965 Opts.NoInlineDefine = true; 3966 3967 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3968 StringRef Val = A->getValue(); 3969 if (Val == "fast") 3970 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3971 else if (Val == "on") 3972 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3973 else if (Val == "off") 3974 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3975 else if (Val == "fast-honor-pragmas") 3976 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3977 else 3978 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3979 } 3980 3981 // Parse -fsanitize= arguments. 3982 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3983 Diags, Opts.Sanitize); 3984 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3985 std::vector<std::string> systemIgnorelists = 3986 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3987 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3988 systemIgnorelists.begin(), 3989 systemIgnorelists.end()); 3990 3991 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3992 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3993 3994 StringRef Ver = A->getValue(); 3995 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3996 unsigned Major, Minor = 0; 3997 3998 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3999 // y or y.0 (4 <= y <= current version). 4000 if (!VerParts.first.startswith("0") && 4001 !VerParts.first.getAsInteger(10, Major) && 4002 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4003 (Major == 3 ? VerParts.second.size() == 1 && 4004 !VerParts.second.getAsInteger(10, Minor) 4005 : VerParts.first.size() == Ver.size() || 4006 VerParts.second == "0")) { 4007 // Got a valid version number. 4008 if (Major == 3 && Minor <= 8) 4009 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4010 else if (Major <= 4) 4011 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4012 else if (Major <= 6) 4013 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4014 else if (Major <= 7) 4015 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4016 else if (Major <= 9) 4017 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4018 else if (Major <= 11) 4019 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4020 else if (Major <= 12) 4021 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4022 else if (Major <= 14) 4023 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4024 } else if (Ver != "latest") { 4025 Diags.Report(diag::err_drv_invalid_value) 4026 << A->getAsString(Args) << A->getValue(); 4027 } 4028 } 4029 4030 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4031 StringRef SignScope = A->getValue(); 4032 4033 if (SignScope.equals_insensitive("none")) 4034 Opts.setSignReturnAddressScope( 4035 LangOptions::SignReturnAddressScopeKind::None); 4036 else if (SignScope.equals_insensitive("all")) 4037 Opts.setSignReturnAddressScope( 4038 LangOptions::SignReturnAddressScopeKind::All); 4039 else if (SignScope.equals_insensitive("non-leaf")) 4040 Opts.setSignReturnAddressScope( 4041 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4042 else 4043 Diags.Report(diag::err_drv_invalid_value) 4044 << A->getAsString(Args) << SignScope; 4045 4046 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4047 StringRef SignKey = A->getValue(); 4048 if (!SignScope.empty() && !SignKey.empty()) { 4049 if (SignKey.equals_insensitive("a_key")) 4050 Opts.setSignReturnAddressKey( 4051 LangOptions::SignReturnAddressKeyKind::AKey); 4052 else if (SignKey.equals_insensitive("b_key")) 4053 Opts.setSignReturnAddressKey( 4054 LangOptions::SignReturnAddressKeyKind::BKey); 4055 else 4056 Diags.Report(diag::err_drv_invalid_value) 4057 << A->getAsString(Args) << SignKey; 4058 } 4059 } 4060 } 4061 4062 // The value can be empty, which indicates the system default should be used. 4063 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4064 if (!CXXABI.empty()) { 4065 if (!TargetCXXABI::isABI(CXXABI)) { 4066 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4067 } else { 4068 auto Kind = TargetCXXABI::getKind(CXXABI); 4069 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4070 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4071 else 4072 Opts.CXXABI = Kind; 4073 } 4074 } 4075 4076 Opts.RelativeCXXABIVTables = 4077 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4078 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4079 TargetCXXABI::usesRelativeVTables(T)); 4080 4081 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4082 auto Split = StringRef(A).split('='); 4083 Opts.MacroPrefixMap.insert( 4084 {std::string(Split.first), std::string(Split.second)}); 4085 } 4086 4087 Opts.UseTargetPathSeparator = 4088 !Args.getLastArg(OPT_fno_file_reproducible) && 4089 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4090 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4091 Args.getLastArg(OPT_ffile_reproducible)); 4092 4093 // Error if -mvscale-min is unbounded. 4094 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4095 unsigned VScaleMin; 4096 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4097 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4098 } 4099 4100 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4101 std::ifstream SeedFile(A->getValue(0)); 4102 4103 if (!SeedFile.is_open()) 4104 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4105 << A->getValue(0); 4106 4107 std::getline(SeedFile, Opts.RandstructSeed); 4108 } 4109 4110 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4111 Opts.RandstructSeed = A->getValue(0); 4112 4113 return Diags.getNumErrors() == NumErrorsBefore; 4114 } 4115 4116 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4117 switch (Action) { 4118 case frontend::ASTDeclList: 4119 case frontend::ASTDump: 4120 case frontend::ASTPrint: 4121 case frontend::ASTView: 4122 case frontend::EmitAssembly: 4123 case frontend::EmitBC: 4124 case frontend::EmitHTML: 4125 case frontend::EmitLLVM: 4126 case frontend::EmitLLVMOnly: 4127 case frontend::EmitCodeGenOnly: 4128 case frontend::EmitObj: 4129 case frontend::ExtractAPI: 4130 case frontend::FixIt: 4131 case frontend::GenerateModule: 4132 case frontend::GenerateModuleInterface: 4133 case frontend::GenerateHeaderModule: 4134 case frontend::GenerateHeaderUnit: 4135 case frontend::GeneratePCH: 4136 case frontend::GenerateInterfaceStubs: 4137 case frontend::ParseSyntaxOnly: 4138 case frontend::ModuleFileInfo: 4139 case frontend::VerifyPCH: 4140 case frontend::PluginAction: 4141 case frontend::RewriteObjC: 4142 case frontend::RewriteTest: 4143 case frontend::RunAnalysis: 4144 case frontend::TemplightDump: 4145 case frontend::MigrateSource: 4146 return false; 4147 4148 case frontend::DumpCompilerOptions: 4149 case frontend::DumpRawTokens: 4150 case frontend::DumpTokens: 4151 case frontend::InitOnly: 4152 case frontend::PrintPreamble: 4153 case frontend::PrintPreprocessedInput: 4154 case frontend::RewriteMacros: 4155 case frontend::RunPreprocessorOnly: 4156 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4157 return true; 4158 } 4159 llvm_unreachable("invalid frontend action"); 4160 } 4161 4162 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4163 SmallVectorImpl<const char *> &Args, 4164 CompilerInvocation::StringAllocator SA, 4165 const LangOptions &LangOpts, 4166 const FrontendOptions &FrontendOpts, 4167 const CodeGenOptions &CodeGenOpts) { 4168 PreprocessorOptions *PreprocessorOpts = &Opts; 4169 4170 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4171 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4172 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4173 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4174 MERGER, EXTRACTOR, TABLE_INDEX) \ 4175 GENERATE_OPTION_WITH_MARSHALLING( \ 4176 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4177 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4178 #include "clang/Driver/Options.inc" 4179 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4180 4181 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4182 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4183 4184 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4185 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4186 4187 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4188 GenerateArg(Args, OPT_preamble_bytes_EQ, 4189 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4190 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4191 SA); 4192 4193 for (const auto &M : Opts.Macros) { 4194 // Don't generate __CET__ macro definitions. They are implied by the 4195 // -fcf-protection option that is generated elsewhere. 4196 if (M.first == "__CET__=1" && !M.second && 4197 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4198 continue; 4199 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4200 !CodeGenOpts.CFProtectionBranch) 4201 continue; 4202 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4203 CodeGenOpts.CFProtectionBranch) 4204 continue; 4205 4206 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4207 } 4208 4209 for (const auto &I : Opts.Includes) { 4210 // Don't generate OpenCL includes. They are implied by other flags that are 4211 // generated elsewhere. 4212 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4213 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4214 I == "opencl-c.h")) 4215 continue; 4216 // Don't generate HLSL includes. They are implied by other flags that are 4217 // generated elsewhere. 4218 if (LangOpts.HLSL && I == "hlsl.h") 4219 continue; 4220 4221 GenerateArg(Args, OPT_include, I, SA); 4222 } 4223 4224 for (const auto &CI : Opts.ChainedIncludes) 4225 GenerateArg(Args, OPT_chain_include, CI, SA); 4226 4227 for (const auto &RF : Opts.RemappedFiles) 4228 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4229 4230 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4231 // generated elsewhere. 4232 } 4233 4234 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4235 DiagnosticsEngine &Diags, 4236 frontend::ActionKind Action, 4237 const FrontendOptions &FrontendOpts) { 4238 unsigned NumErrorsBefore = Diags.getNumErrors(); 4239 4240 PreprocessorOptions *PreprocessorOpts = &Opts; 4241 4242 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4243 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4244 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4245 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4246 MERGER, EXTRACTOR, TABLE_INDEX) \ 4247 PARSE_OPTION_WITH_MARSHALLING( \ 4248 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4249 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4250 #include "clang/Driver/Options.inc" 4251 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4252 4253 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4254 Args.hasArg(OPT_pch_through_hdrstop_use); 4255 4256 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4257 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4258 4259 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4260 StringRef Value(A->getValue()); 4261 size_t Comma = Value.find(','); 4262 unsigned Bytes = 0; 4263 unsigned EndOfLine = 0; 4264 4265 if (Comma == StringRef::npos || 4266 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4267 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4268 Diags.Report(diag::err_drv_preamble_format); 4269 else { 4270 Opts.PrecompiledPreambleBytes.first = Bytes; 4271 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4272 } 4273 } 4274 4275 // Add the __CET__ macro if a CFProtection option is set. 4276 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4277 StringRef Name = A->getValue(); 4278 if (Name == "branch") 4279 Opts.addMacroDef("__CET__=1"); 4280 else if (Name == "return") 4281 Opts.addMacroDef("__CET__=2"); 4282 else if (Name == "full") 4283 Opts.addMacroDef("__CET__=3"); 4284 } 4285 4286 // Add macros from the command line. 4287 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4288 if (A->getOption().matches(OPT_D)) 4289 Opts.addMacroDef(A->getValue()); 4290 else 4291 Opts.addMacroUndef(A->getValue()); 4292 } 4293 4294 // Add the ordered list of -includes. 4295 for (const auto *A : Args.filtered(OPT_include)) 4296 Opts.Includes.emplace_back(A->getValue()); 4297 4298 for (const auto *A : Args.filtered(OPT_chain_include)) 4299 Opts.ChainedIncludes.emplace_back(A->getValue()); 4300 4301 for (const auto *A : Args.filtered(OPT_remap_file)) { 4302 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4303 4304 if (Split.second.empty()) { 4305 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4306 continue; 4307 } 4308 4309 Opts.addRemappedFile(Split.first, Split.second); 4310 } 4311 4312 // Always avoid lexing editor placeholders when we're just running the 4313 // preprocessor as we never want to emit the 4314 // "editor placeholder in source file" error in PP only mode. 4315 if (isStrictlyPreprocessorAction(Action)) 4316 Opts.LexEditorPlaceholders = false; 4317 4318 return Diags.getNumErrors() == NumErrorsBefore; 4319 } 4320 4321 static void GeneratePreprocessorOutputArgs( 4322 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4323 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4324 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4325 4326 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4327 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4328 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4329 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4330 MERGER, EXTRACTOR, TABLE_INDEX) \ 4331 GENERATE_OPTION_WITH_MARSHALLING( \ 4332 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4333 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4334 #include "clang/Driver/Options.inc" 4335 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4336 4337 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4338 if (Generate_dM) 4339 GenerateArg(Args, OPT_dM, SA); 4340 if (!Generate_dM && Opts.ShowMacros) 4341 GenerateArg(Args, OPT_dD, SA); 4342 if (Opts.DirectivesOnly) 4343 GenerateArg(Args, OPT_fdirectives_only, SA); 4344 } 4345 4346 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4347 ArgList &Args, DiagnosticsEngine &Diags, 4348 frontend::ActionKind Action) { 4349 unsigned NumErrorsBefore = Diags.getNumErrors(); 4350 4351 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4352 4353 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4354 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4355 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4356 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4357 MERGER, EXTRACTOR, TABLE_INDEX) \ 4358 PARSE_OPTION_WITH_MARSHALLING( \ 4359 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4360 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4361 #include "clang/Driver/Options.inc" 4362 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4363 4364 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4365 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4366 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4367 4368 return Diags.getNumErrors() == NumErrorsBefore; 4369 } 4370 4371 static void GenerateTargetArgs(const TargetOptions &Opts, 4372 SmallVectorImpl<const char *> &Args, 4373 CompilerInvocation::StringAllocator SA) { 4374 const TargetOptions *TargetOpts = &Opts; 4375 #define TARGET_OPTION_WITH_MARSHALLING( \ 4376 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4377 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4378 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4379 MERGER, EXTRACTOR, TABLE_INDEX) \ 4380 GENERATE_OPTION_WITH_MARSHALLING( \ 4381 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4382 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4383 #include "clang/Driver/Options.inc" 4384 #undef TARGET_OPTION_WITH_MARSHALLING 4385 4386 if (!Opts.SDKVersion.empty()) 4387 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4388 SA); 4389 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4390 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4391 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4392 } 4393 4394 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4395 DiagnosticsEngine &Diags) { 4396 unsigned NumErrorsBefore = Diags.getNumErrors(); 4397 4398 TargetOptions *TargetOpts = &Opts; 4399 4400 #define TARGET_OPTION_WITH_MARSHALLING( \ 4401 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4402 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4403 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4404 MERGER, EXTRACTOR, TABLE_INDEX) \ 4405 PARSE_OPTION_WITH_MARSHALLING( \ 4406 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4407 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4408 #include "clang/Driver/Options.inc" 4409 #undef TARGET_OPTION_WITH_MARSHALLING 4410 4411 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4412 llvm::VersionTuple Version; 4413 if (Version.tryParse(A->getValue())) 4414 Diags.Report(diag::err_drv_invalid_value) 4415 << A->getAsString(Args) << A->getValue(); 4416 else 4417 Opts.SDKVersion = Version; 4418 } 4419 if (Arg *A = 4420 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4421 llvm::VersionTuple Version; 4422 if (Version.tryParse(A->getValue())) 4423 Diags.Report(diag::err_drv_invalid_value) 4424 << A->getAsString(Args) << A->getValue(); 4425 else 4426 Opts.DarwinTargetVariantSDKVersion = Version; 4427 } 4428 4429 return Diags.getNumErrors() == NumErrorsBefore; 4430 } 4431 4432 bool CompilerInvocation::CreateFromArgsImpl( 4433 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4434 DiagnosticsEngine &Diags, const char *Argv0) { 4435 unsigned NumErrorsBefore = Diags.getNumErrors(); 4436 4437 // Parse the arguments. 4438 const OptTable &Opts = getDriverOptTable(); 4439 const unsigned IncludedFlagsBitmask = options::CC1Option; 4440 unsigned MissingArgIndex, MissingArgCount; 4441 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4442 MissingArgCount, IncludedFlagsBitmask); 4443 LangOptions &LangOpts = *Res.getLangOpts(); 4444 4445 // Check for missing argument error. 4446 if (MissingArgCount) 4447 Diags.Report(diag::err_drv_missing_argument) 4448 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4449 4450 // Issue errors on unknown arguments. 4451 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4452 auto ArgString = A->getAsString(Args); 4453 std::string Nearest; 4454 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4455 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4456 else 4457 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4458 << ArgString << Nearest; 4459 } 4460 4461 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4462 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4463 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4464 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4465 /*DefaultDiagColor=*/false); 4466 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4467 // FIXME: We shouldn't have to pass the DashX option around here 4468 InputKind DashX = Res.getFrontendOpts().DashX; 4469 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4470 llvm::Triple T(Res.getTargetOpts().Triple); 4471 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4472 Res.getFileSystemOpts().WorkingDir); 4473 4474 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4475 Diags); 4476 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4477 LangOpts.ObjCExceptions = 1; 4478 4479 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4480 if (Warning == "misexpect" && 4481 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4482 Res.getCodeGenOpts().MisExpect = true; 4483 } 4484 } 4485 4486 if (LangOpts.CUDA) { 4487 // During CUDA device-side compilation, the aux triple is the 4488 // triple used for host compilation. 4489 if (LangOpts.CUDAIsDevice) 4490 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4491 } 4492 4493 // Set the triple of the host for OpenMP device compile. 4494 if (LangOpts.OpenMPIsDevice) 4495 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4496 4497 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4498 Res.getFrontendOpts().OutputFile, LangOpts); 4499 4500 // FIXME: Override value name discarding when asan or msan is used because the 4501 // backend passes depend on the name of the alloca in order to print out 4502 // names. 4503 Res.getCodeGenOpts().DiscardValueNames &= 4504 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4505 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4506 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4507 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4508 4509 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4510 Res.getFrontendOpts().ProgramAction, 4511 Res.getFrontendOpts()); 4512 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4513 Res.getFrontendOpts().ProgramAction); 4514 4515 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4516 Res.getFrontendOpts().ProgramAction, 4517 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4518 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4519 Res.getDependencyOutputOpts().Targets.empty()) 4520 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4521 4522 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4523 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4524 !Res.getLangOpts()->Sanitize.empty()) { 4525 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4526 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4527 } 4528 4529 // Store the command-line for using in the CodeView backend. 4530 Res.getCodeGenOpts().Argv0 = Argv0; 4531 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4532 4533 FixupInvocation(Res, Diags, Args, DashX); 4534 4535 return Diags.getNumErrors() == NumErrorsBefore; 4536 } 4537 4538 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4539 ArrayRef<const char *> CommandLineArgs, 4540 DiagnosticsEngine &Diags, 4541 const char *Argv0) { 4542 CompilerInvocation DummyInvocation; 4543 4544 return RoundTrip( 4545 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4546 DiagnosticsEngine &Diags, const char *Argv0) { 4547 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4548 }, 4549 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4550 StringAllocator SA) { 4551 Args.push_back("-cc1"); 4552 Invocation.generateCC1CommandLine(Args, SA); 4553 }, 4554 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4555 } 4556 4557 std::string CompilerInvocation::getModuleHash() const { 4558 // FIXME: Consider using SHA1 instead of MD5. 4559 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4560 4561 // Note: For QoI reasons, the things we use as a hash here should all be 4562 // dumped via the -module-info flag. 4563 4564 // Start the signature with the compiler version. 4565 HBuilder.add(getClangFullRepositoryVersion()); 4566 4567 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4568 // and getClangFullRepositoryVersion() doesn't include git revision. 4569 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4570 4571 // Extend the signature with the language options 4572 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4573 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4574 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4575 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4576 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4577 #include "clang/Basic/LangOptions.def" 4578 4579 HBuilder.addRange(LangOpts->ModuleFeatures); 4580 4581 HBuilder.add(LangOpts->ObjCRuntime); 4582 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4583 4584 // Extend the signature with the target options. 4585 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4586 TargetOpts->ABI); 4587 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4588 4589 // Extend the signature with preprocessor options. 4590 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4591 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4592 4593 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4594 for (const auto &Macro : getPreprocessorOpts().Macros) { 4595 // If we're supposed to ignore this macro for the purposes of modules, 4596 // don't put it into the hash. 4597 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4598 // Check whether we're ignoring this macro. 4599 StringRef MacroDef = Macro.first; 4600 if (hsOpts.ModulesIgnoreMacros.count( 4601 llvm::CachedHashString(MacroDef.split('=').first))) 4602 continue; 4603 } 4604 4605 HBuilder.add(Macro); 4606 } 4607 4608 // Extend the signature with the sysroot and other header search options. 4609 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4610 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4611 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4612 hsOpts.ModulesValidateDiagnosticOptions); 4613 HBuilder.add(hsOpts.ResourceDir); 4614 4615 if (hsOpts.ModulesStrictContextHash) { 4616 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4617 HBuilder.addRange(hsOpts.UserEntries); 4618 4619 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4620 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4621 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4622 HBuilder.add(diagOpts.get##Name()); 4623 #include "clang/Basic/DiagnosticOptions.def" 4624 #undef DIAGOPT 4625 #undef ENUM_DIAGOPT 4626 } 4627 4628 // Extend the signature with the user build path. 4629 HBuilder.add(hsOpts.ModuleUserBuildPath); 4630 4631 // Extend the signature with the module file extensions. 4632 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4633 ext->hashExtension(HBuilder); 4634 4635 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4636 // affects the debug info in the PCM. 4637 if (getCodeGenOpts().DebugTypeExtRefs) 4638 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4639 4640 // Extend the signature with the enabled sanitizers, if at least one is 4641 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4642 SanitizerSet SanHash = LangOpts->Sanitize; 4643 SanHash.clear(getPPTransparentSanitizers()); 4644 if (!SanHash.empty()) 4645 HBuilder.add(SanHash.Mask); 4646 4647 llvm::MD5::MD5Result Result; 4648 HBuilder.getHasher().final(Result); 4649 uint64_t Hash = Result.high() ^ Result.low(); 4650 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4651 } 4652 4653 void CompilerInvocation::generateCC1CommandLine( 4654 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4655 llvm::Triple T(TargetOpts->Triple); 4656 4657 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4658 GenerateMigratorArgs(MigratorOpts, Args, SA); 4659 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4660 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4661 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4662 GenerateTargetArgs(*TargetOpts, Args, SA); 4663 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4664 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4665 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4666 &*LangOpts); 4667 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4668 CodeGenOpts); 4669 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4670 FrontendOpts.ProgramAction); 4671 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4672 } 4673 4674 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4675 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4676 DiagnosticsEngine &Diags) { 4677 return createVFSFromCompilerInvocation(CI, Diags, 4678 llvm::vfs::getRealFileSystem()); 4679 } 4680 4681 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4682 clang::createVFSFromCompilerInvocation( 4683 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4684 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4685 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4686 return BaseFS; 4687 4688 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4689 // earlier vfs files are on the bottom 4690 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4691 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4692 Result->getBufferForFile(File); 4693 if (!Buffer) { 4694 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4695 continue; 4696 } 4697 4698 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4699 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4700 /*DiagContext*/ nullptr, Result); 4701 if (!FS) { 4702 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4703 continue; 4704 } 4705 4706 Result = FS; 4707 } 4708 return Result; 4709 } 4710