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