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/Optional.h" 56 #include "llvm/ADT/STLExtras.h" 57 #include "llvm/ADT/SmallString.h" 58 #include "llvm/ADT/SmallVector.h" 59 #include "llvm/ADT/StringRef.h" 60 #include "llvm/ADT/StringSwitch.h" 61 #include "llvm/ADT/Triple.h" 62 #include "llvm/ADT/Twine.h" 63 #include "llvm/Config/llvm-config.h" 64 #include "llvm/IR/DebugInfoMetadata.h" 65 #include "llvm/Linker/Linker.h" 66 #include "llvm/MC/MCTargetOptions.h" 67 #include "llvm/Option/Arg.h" 68 #include "llvm/Option/ArgList.h" 69 #include "llvm/Option/OptSpecifier.h" 70 #include "llvm/Option/OptTable.h" 71 #include "llvm/Option/Option.h" 72 #include "llvm/ProfileData/InstrProfReader.h" 73 #include "llvm/Remarks/HotnessThresholdParser.h" 74 #include "llvm/Support/CodeGen.h" 75 #include "llvm/Support/Compiler.h" 76 #include "llvm/Support/Error.h" 77 #include "llvm/Support/ErrorHandling.h" 78 #include "llvm/Support/ErrorOr.h" 79 #include "llvm/Support/FileSystem.h" 80 #include "llvm/Support/HashBuilder.h" 81 #include "llvm/Support/Host.h" 82 #include "llvm/Support/MathExtras.h" 83 #include "llvm/Support/MemoryBuffer.h" 84 #include "llvm/Support/Path.h" 85 #include "llvm/Support/Process.h" 86 #include "llvm/Support/Regex.h" 87 #include "llvm/Support/VersionTuple.h" 88 #include "llvm/Support/VirtualFileSystem.h" 89 #include "llvm/Support/raw_ostream.h" 90 #include "llvm/Target/TargetOptions.h" 91 #include <algorithm> 92 #include <atomic> 93 #include <cassert> 94 #include <cstddef> 95 #include <cstring> 96 #include <ctime> 97 #include <fstream> 98 #include <limits> 99 #include <memory> 100 #include <optional> 101 #include <string> 102 #include <tuple> 103 #include <type_traits> 104 #include <utility> 105 #include <vector> 106 107 using namespace clang; 108 using namespace driver; 109 using namespace options; 110 using namespace llvm::opt; 111 112 //===----------------------------------------------------------------------===// 113 // Helpers. 114 //===----------------------------------------------------------------------===// 115 116 // Parse misexpect tolerance argument value. 117 // Valid option values are integers in the range [0, 100) 118 static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) { 119 uint32_t Val; 120 if (Arg.getAsInteger(10, Val)) 121 return llvm::createStringError(llvm::inconvertibleErrorCode(), 122 "Not an integer: %s", Arg.data()); 123 return Val; 124 } 125 126 //===----------------------------------------------------------------------===// 127 // Initialization. 128 //===----------------------------------------------------------------------===// 129 130 CompilerInvocationRefBase::CompilerInvocationRefBase() 131 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 132 DiagnosticOpts(new DiagnosticOptions()), 133 HeaderSearchOpts(new HeaderSearchOptions()), 134 PreprocessorOpts(new PreprocessorOptions()), 135 AnalyzerOpts(new AnalyzerOptions()) {} 136 137 CompilerInvocationRefBase::CompilerInvocationRefBase( 138 const CompilerInvocationRefBase &X) 139 : LangOpts(new LangOptions(*X.getLangOpts())), 140 TargetOpts(new TargetOptions(X.getTargetOpts())), 141 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 142 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 143 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 144 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 145 146 CompilerInvocationRefBase::CompilerInvocationRefBase( 147 CompilerInvocationRefBase &&X) = default; 148 149 CompilerInvocationRefBase & 150 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 151 LangOpts.swap(X.LangOpts); 152 TargetOpts.swap(X.TargetOpts); 153 DiagnosticOpts.swap(X.DiagnosticOpts); 154 HeaderSearchOpts.swap(X.HeaderSearchOpts); 155 PreprocessorOpts.swap(X.PreprocessorOpts); 156 AnalyzerOpts.swap(X.AnalyzerOpts); 157 return *this; 158 } 159 160 CompilerInvocationRefBase & 161 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 162 163 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 164 165 //===----------------------------------------------------------------------===// 166 // Normalizers 167 //===----------------------------------------------------------------------===// 168 169 #define SIMPLE_ENUM_VALUE_TABLE 170 #include "clang/Driver/Options.inc" 171 #undef SIMPLE_ENUM_VALUE_TABLE 172 173 static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 174 unsigned TableIndex, 175 const ArgList &Args, 176 DiagnosticsEngine &Diags) { 177 if (Args.hasArg(Opt)) 178 return true; 179 return std::nullopt; 180 } 181 182 static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, 183 unsigned, 184 const ArgList &Args, 185 DiagnosticsEngine &) { 186 if (Args.hasArg(Opt)) 187 return false; 188 return std::nullopt; 189 } 190 191 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 192 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 193 /// unnecessary template instantiations and just ignore it with a variadic 194 /// argument. 195 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 196 const char *Spelling, 197 CompilerInvocation::StringAllocator, 198 Option::OptionClass, unsigned, /*T*/...) { 199 Args.push_back(Spelling); 200 } 201 202 template <typename T> static constexpr bool is_uint64_t_convertible() { 203 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 204 } 205 206 template <typename T, 207 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 208 static auto makeFlagToValueNormalizer(T Value) { 209 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 210 DiagnosticsEngine &) -> std::optional<T> { 211 if (Args.hasArg(Opt)) 212 return Value; 213 return std::nullopt; 214 }; 215 } 216 217 template <typename T, 218 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 219 static auto makeFlagToValueNormalizer(T Value) { 220 return makeFlagToValueNormalizer(uint64_t(Value)); 221 } 222 223 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 224 OptSpecifier OtherOpt) { 225 return [Value, OtherValue, 226 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args, 227 DiagnosticsEngine &) -> std::optional<bool> { 228 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 229 return A->getOption().matches(Opt) ? Value : OtherValue; 230 } 231 return std::nullopt; 232 }; 233 } 234 235 static auto makeBooleanOptionDenormalizer(bool Value) { 236 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 237 CompilerInvocation::StringAllocator, Option::OptionClass, 238 unsigned, bool KeyPath) { 239 if (KeyPath == Value) 240 Args.push_back(Spelling); 241 }; 242 } 243 244 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 245 const char *Spelling, 246 CompilerInvocation::StringAllocator SA, 247 Option::OptionClass OptClass, unsigned, 248 const Twine &Value) { 249 switch (OptClass) { 250 case Option::SeparateClass: 251 case Option::JoinedOrSeparateClass: 252 case Option::JoinedAndSeparateClass: 253 Args.push_back(Spelling); 254 Args.push_back(SA(Value)); 255 break; 256 case Option::JoinedClass: 257 case Option::CommaJoinedClass: 258 Args.push_back(SA(Twine(Spelling) + Value)); 259 break; 260 default: 261 llvm_unreachable("Cannot denormalize an option with option class " 262 "incompatible with string denormalization."); 263 } 264 } 265 266 template <typename T> 267 static void 268 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 269 CompilerInvocation::StringAllocator SA, 270 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 271 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 272 } 273 274 static std::optional<SimpleEnumValue> 275 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 276 for (int I = 0, E = Table.Size; I != E; ++I) 277 if (Name == Table.Table[I].Name) 278 return Table.Table[I]; 279 280 return std::nullopt; 281 } 282 283 static std::optional<SimpleEnumValue> 284 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 285 for (int I = 0, E = Table.Size; I != E; ++I) 286 if (Value == Table.Table[I].Value) 287 return Table.Table[I]; 288 289 return std::nullopt; 290 } 291 292 static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 293 unsigned TableIndex, 294 const ArgList &Args, 295 DiagnosticsEngine &Diags) { 296 assert(TableIndex < SimpleEnumValueTablesSize); 297 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 298 299 auto *Arg = Args.getLastArg(Opt); 300 if (!Arg) 301 return std::nullopt; 302 303 StringRef ArgValue = Arg->getValue(); 304 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 305 return MaybeEnumVal->Value; 306 307 Diags.Report(diag::err_drv_invalid_value) 308 << Arg->getAsString(Args) << ArgValue; 309 return std::nullopt; 310 } 311 312 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 313 const char *Spelling, 314 CompilerInvocation::StringAllocator SA, 315 Option::OptionClass OptClass, 316 unsigned TableIndex, unsigned Value) { 317 assert(TableIndex < SimpleEnumValueTablesSize); 318 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 319 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 320 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 321 MaybeEnumVal->Name); 322 } else { 323 llvm_unreachable("The simple enum value was not correctly defined in " 324 "the tablegen option description"); 325 } 326 } 327 328 template <typename T> 329 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 330 const char *Spelling, 331 CompilerInvocation::StringAllocator SA, 332 Option::OptionClass OptClass, 333 unsigned TableIndex, T Value) { 334 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 335 static_cast<unsigned>(Value)); 336 } 337 338 static std::optional<std::string> normalizeString(OptSpecifier Opt, 339 int TableIndex, 340 const ArgList &Args, 341 DiagnosticsEngine &Diags) { 342 auto *Arg = Args.getLastArg(Opt); 343 if (!Arg) 344 return std::nullopt; 345 return std::string(Arg->getValue()); 346 } 347 348 template <typename IntTy> 349 static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 350 const ArgList &Args, 351 DiagnosticsEngine &Diags) { 352 auto *Arg = Args.getLastArg(Opt); 353 if (!Arg) 354 return std::nullopt; 355 IntTy Res; 356 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 357 Diags.Report(diag::err_drv_invalid_int_value) 358 << Arg->getAsString(Args) << Arg->getValue(); 359 return std::nullopt; 360 } 361 return Res; 362 } 363 364 static std::optional<std::vector<std::string>> 365 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 366 DiagnosticsEngine &) { 367 return Args.getAllArgValues(Opt); 368 } 369 370 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 371 const char *Spelling, 372 CompilerInvocation::StringAllocator SA, 373 Option::OptionClass OptClass, 374 unsigned TableIndex, 375 const std::vector<std::string> &Values) { 376 switch (OptClass) { 377 case Option::CommaJoinedClass: { 378 std::string CommaJoinedValue; 379 if (!Values.empty()) { 380 CommaJoinedValue.append(Values.front()); 381 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 382 CommaJoinedValue.append(","); 383 CommaJoinedValue.append(Value); 384 } 385 } 386 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 387 TableIndex, CommaJoinedValue); 388 break; 389 } 390 case Option::JoinedClass: 391 case Option::SeparateClass: 392 case Option::JoinedOrSeparateClass: 393 for (const std::string &Value : Values) 394 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 395 break; 396 default: 397 llvm_unreachable("Cannot denormalize an option with option class " 398 "incompatible with string vector denormalization."); 399 } 400 } 401 402 static std::optional<std::string> normalizeTriple(OptSpecifier Opt, 403 int TableIndex, 404 const ArgList &Args, 405 DiagnosticsEngine &Diags) { 406 auto *Arg = Args.getLastArg(Opt); 407 if (!Arg) 408 return std::nullopt; 409 return llvm::Triple::normalize(Arg->getValue()); 410 } 411 412 template <typename T, typename U> 413 static T mergeForwardValue(T KeyPath, U Value) { 414 return static_cast<T>(Value); 415 } 416 417 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 418 return KeyPath | Value; 419 } 420 421 template <typename T> static T extractForwardValue(T KeyPath) { 422 return KeyPath; 423 } 424 425 template <typename T, typename U, U Value> 426 static T extractMaskValue(T KeyPath) { 427 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 428 } 429 430 #define PARSE_OPTION_WITH_MARSHALLING( \ 431 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 432 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 433 if ((FLAGS)&options::CC1Option) { \ 434 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 435 if (IMPLIED_CHECK) \ 436 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 437 if (SHOULD_PARSE) \ 438 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 439 KEYPATH = \ 440 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 441 } 442 443 // Capture the extracted value as a lambda argument to avoid potential issues 444 // with lifetime extension of the reference. 445 #define GENERATE_OPTION_WITH_MARSHALLING( \ 446 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 447 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 448 TABLE_INDEX) \ 449 if ((FLAGS)&options::CC1Option) { \ 450 [&](const auto &Extracted) { \ 451 if (ALWAYS_EMIT || \ 452 (Extracted != \ 453 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 454 : (DEFAULT_VALUE)))) \ 455 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 456 TABLE_INDEX, Extracted); \ 457 }(EXTRACTOR(KEYPATH)); \ 458 } 459 460 static StringRef GetInputKindName(InputKind IK); 461 462 static bool FixupInvocation(CompilerInvocation &Invocation, 463 DiagnosticsEngine &Diags, const ArgList &Args, 464 InputKind IK) { 465 unsigned NumErrorsBefore = Diags.getNumErrors(); 466 467 LangOptions &LangOpts = *Invocation.getLangOpts(); 468 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 469 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 470 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 471 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 472 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 473 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 474 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 475 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 476 if (FrontendOpts.ShowStats) 477 CodeGenOpts.ClearASTBeforeBackend = false; 478 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 479 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 480 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 481 LangOpts.CurrentModule = LangOpts.ModuleName; 482 483 llvm::Triple T(TargetOpts.Triple); 484 llvm::Triple::ArchType Arch = T.getArch(); 485 486 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 487 488 if (LangOpts.getExceptionHandling() != 489 LangOptions::ExceptionHandlingKind::None && 490 T.isWindowsMSVCEnvironment()) 491 Diags.Report(diag::err_fe_invalid_exception_model) 492 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 493 494 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 495 Diags.Report(diag::warn_c_kext); 496 497 if (LangOpts.NewAlignOverride && 498 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 499 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 500 Diags.Report(diag::err_fe_invalid_alignment) 501 << A->getAsString(Args) << A->getValue(); 502 LangOpts.NewAlignOverride = 0; 503 } 504 505 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 506 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 507 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 508 << "-fsycl-is-host"; 509 510 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 511 Diags.Report(diag::err_drv_argument_not_allowed_with) 512 << "-fgnu89-inline" << GetInputKindName(IK); 513 514 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 515 Diags.Report(diag::err_drv_argument_not_allowed_with) 516 << "-hlsl-entry" << GetInputKindName(IK); 517 518 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 519 Diags.Report(diag::warn_ignored_hip_only_option) 520 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 521 522 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 523 Diags.Report(diag::warn_ignored_hip_only_option) 524 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 525 526 // When these options are used, the compiler is allowed to apply 527 // optimizations that may affect the final result. For example 528 // (x+y)+z is transformed to x+(y+z) but may not give the same 529 // final result; it's not value safe. 530 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 531 // or NaN. Final result may then differ. An error is issued when the eval 532 // method is set with one of these options. 533 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 534 if (LangOpts.ApproxFunc) 535 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 536 if (LangOpts.AllowFPReassoc) 537 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 538 if (LangOpts.AllowRecip) 539 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 540 } 541 542 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 543 // This option should be deprecated for CL > 1.0 because 544 // this option was added for compatibility with OpenCL 1.0. 545 if (Args.getLastArg(OPT_cl_strict_aliasing) && 546 (LangOpts.getOpenCLCompatibleVersion() > 100)) 547 Diags.Report(diag::warn_option_invalid_ocl_version) 548 << LangOpts.getOpenCLVersionString() 549 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 550 551 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 552 auto DefaultCC = LangOpts.getDefaultCallingConv(); 553 554 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 555 DefaultCC == LangOptions::DCC_StdCall) && 556 Arch != llvm::Triple::x86; 557 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 558 DefaultCC == LangOptions::DCC_RegCall) && 559 !T.isX86(); 560 if (emitError) 561 Diags.Report(diag::err_drv_argument_not_allowed_with) 562 << A->getSpelling() << T.getTriple(); 563 } 564 565 return Diags.getNumErrors() == NumErrorsBefore; 566 } 567 568 //===----------------------------------------------------------------------===// 569 // Deserialization (from args) 570 //===----------------------------------------------------------------------===// 571 572 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 573 DiagnosticsEngine &Diags) { 574 unsigned DefaultOpt = llvm::CodeGenOpt::None; 575 if ((IK.getLanguage() == Language::OpenCL || 576 IK.getLanguage() == Language::OpenCLCXX) && 577 !Args.hasArg(OPT_cl_opt_disable)) 578 DefaultOpt = llvm::CodeGenOpt::Default; 579 580 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 581 if (A->getOption().matches(options::OPT_O0)) 582 return llvm::CodeGenOpt::None; 583 584 if (A->getOption().matches(options::OPT_Ofast)) 585 return llvm::CodeGenOpt::Aggressive; 586 587 assert(A->getOption().matches(options::OPT_O)); 588 589 StringRef S(A->getValue()); 590 if (S == "s" || S == "z") 591 return llvm::CodeGenOpt::Default; 592 593 if (S == "g") 594 return llvm::CodeGenOpt::Less; 595 596 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 597 } 598 599 return DefaultOpt; 600 } 601 602 static unsigned getOptimizationLevelSize(ArgList &Args) { 603 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 604 if (A->getOption().matches(options::OPT_O)) { 605 switch (A->getValue()[0]) { 606 default: 607 return 0; 608 case 's': 609 return 1; 610 case 'z': 611 return 2; 612 } 613 } 614 } 615 return 0; 616 } 617 618 static void GenerateArg(SmallVectorImpl<const char *> &Args, 619 llvm::opt::OptSpecifier OptSpecifier, 620 CompilerInvocation::StringAllocator SA) { 621 Option Opt = getDriverOptTable().getOption(OptSpecifier); 622 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 623 Option::OptionClass::FlagClass, 0); 624 } 625 626 static void GenerateArg(SmallVectorImpl<const char *> &Args, 627 llvm::opt::OptSpecifier OptSpecifier, 628 const Twine &Value, 629 CompilerInvocation::StringAllocator SA) { 630 Option Opt = getDriverOptTable().getOption(OptSpecifier); 631 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 632 Opt.getKind(), 0, Value); 633 } 634 635 // Parse command line arguments into CompilerInvocation. 636 using ParseFn = 637 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 638 DiagnosticsEngine &, const char *)>; 639 640 // Generate command line arguments from CompilerInvocation. 641 using GenerateFn = llvm::function_ref<void( 642 CompilerInvocation &, SmallVectorImpl<const char *> &, 643 CompilerInvocation::StringAllocator)>; 644 645 // May perform round-trip of command line arguments. By default, the round-trip 646 // is enabled in assert builds. This can be overwritten at run-time via the 647 // "-round-trip-args" and "-no-round-trip-args" command line flags. 648 // During round-trip, the command line arguments are parsed into a dummy 649 // instance of CompilerInvocation which is used to generate the command line 650 // arguments again. The real CompilerInvocation instance is then created by 651 // parsing the generated arguments, not the original ones. 652 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 653 CompilerInvocation &RealInvocation, 654 CompilerInvocation &DummyInvocation, 655 ArrayRef<const char *> CommandLineArgs, 656 DiagnosticsEngine &Diags, const char *Argv0) { 657 #ifndef NDEBUG 658 bool DoRoundTripDefault = true; 659 #else 660 bool DoRoundTripDefault = false; 661 #endif 662 663 bool DoRoundTrip = DoRoundTripDefault; 664 for (const auto *Arg : CommandLineArgs) { 665 if (Arg == StringRef("-round-trip-args")) 666 DoRoundTrip = true; 667 if (Arg == StringRef("-no-round-trip-args")) 668 DoRoundTrip = false; 669 } 670 671 // If round-trip was not requested, simply run the parser with the real 672 // invocation diagnostics. 673 if (!DoRoundTrip) 674 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 675 676 // Serializes quoted (and potentially escaped) arguments. 677 auto SerializeArgs = [](ArrayRef<const char *> Args) { 678 std::string Buffer; 679 llvm::raw_string_ostream OS(Buffer); 680 for (const char *Arg : Args) { 681 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 682 OS << ' '; 683 } 684 OS.flush(); 685 return Buffer; 686 }; 687 688 // Setup a dummy DiagnosticsEngine. 689 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 690 DummyDiags.setClient(new TextDiagnosticBuffer()); 691 692 // Run the first parse on the original arguments with the dummy invocation and 693 // diagnostics. 694 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 695 DummyDiags.getNumWarnings() != 0) { 696 // If the first parse did not succeed, it must be user mistake (invalid 697 // command line arguments). We won't be able to generate arguments that 698 // would reproduce the same result. Let's fail again with the real 699 // invocation and diagnostics, so all side-effects of parsing are visible. 700 unsigned NumWarningsBefore = Diags.getNumWarnings(); 701 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 702 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 703 return Success; 704 705 // Parse with original options and diagnostics succeeded even though it 706 // shouldn't have. Something is off. 707 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 708 Diags.Report(diag::note_cc1_round_trip_original) 709 << SerializeArgs(CommandLineArgs); 710 return false; 711 } 712 713 // Setup string allocator. 714 llvm::BumpPtrAllocator Alloc; 715 llvm::StringSaver StringPool(Alloc); 716 auto SA = [&StringPool](const Twine &Arg) { 717 return StringPool.save(Arg).data(); 718 }; 719 720 // Generate arguments from the dummy invocation. If Generate is the 721 // inverse of Parse, the newly generated arguments must have the same 722 // semantics as the original. 723 SmallVector<const char *> GeneratedArgs1; 724 Generate(DummyInvocation, GeneratedArgs1, SA); 725 726 // Run the second parse, now on the generated arguments, and with the real 727 // invocation and diagnostics. The result is what we will end up using for the 728 // rest of compilation, so if Generate is not inverse of Parse, something down 729 // the line will break. 730 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 731 732 // The first parse on original arguments succeeded, but second parse of 733 // generated arguments failed. Something must be wrong with the generator. 734 if (!Success2) { 735 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 736 Diags.Report(diag::note_cc1_round_trip_generated) 737 << 1 << SerializeArgs(GeneratedArgs1); 738 return false; 739 } 740 741 // Generate arguments again, this time from the options we will end up using 742 // for the rest of the compilation. 743 SmallVector<const char *> GeneratedArgs2; 744 Generate(RealInvocation, GeneratedArgs2, SA); 745 746 // Compares two lists of generated arguments. 747 auto Equal = [](const ArrayRef<const char *> A, 748 const ArrayRef<const char *> B) { 749 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 750 [](const char *AElem, const char *BElem) { 751 return StringRef(AElem) == StringRef(BElem); 752 }); 753 }; 754 755 // If we generated different arguments from what we assume are two 756 // semantically equivalent CompilerInvocations, the Generate function may 757 // be non-deterministic. 758 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 759 Diags.Report(diag::err_cc1_round_trip_mismatch); 760 Diags.Report(diag::note_cc1_round_trip_generated) 761 << 1 << SerializeArgs(GeneratedArgs1); 762 Diags.Report(diag::note_cc1_round_trip_generated) 763 << 2 << SerializeArgs(GeneratedArgs2); 764 return false; 765 } 766 767 Diags.Report(diag::remark_cc1_round_trip_generated) 768 << 1 << SerializeArgs(GeneratedArgs1); 769 Diags.Report(diag::remark_cc1_round_trip_generated) 770 << 2 << SerializeArgs(GeneratedArgs2); 771 772 return Success2; 773 } 774 775 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 776 OptSpecifier GroupWithValue, 777 std::vector<std::string> &Diagnostics) { 778 for (auto *A : Args.filtered(Group)) { 779 if (A->getOption().getKind() == Option::FlagClass) { 780 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 781 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 782 Diagnostics.push_back( 783 std::string(A->getOption().getName().drop_front(1))); 784 } else if (A->getOption().matches(GroupWithValue)) { 785 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 786 // group. Add only the group name to the diagnostics. 787 Diagnostics.push_back( 788 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 789 } else { 790 // Otherwise, add its value (for OPT_W_Joined and similar). 791 Diagnostics.push_back(A->getValue()); 792 } 793 } 794 } 795 796 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 797 // it won't verify the input. 798 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 799 DiagnosticsEngine *Diags); 800 801 static void getAllNoBuiltinFuncValues(ArgList &Args, 802 std::vector<std::string> &Funcs) { 803 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 804 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 805 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 806 } 807 808 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 809 SmallVectorImpl<const char *> &Args, 810 CompilerInvocation::StringAllocator SA) { 811 const AnalyzerOptions *AnalyzerOpts = &Opts; 812 813 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 814 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 815 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 816 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 817 MERGER, EXTRACTOR, TABLE_INDEX) \ 818 GENERATE_OPTION_WITH_MARSHALLING( \ 819 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 820 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 821 #include "clang/Driver/Options.inc" 822 #undef ANALYZER_OPTION_WITH_MARSHALLING 823 824 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 825 switch (Opts.AnalysisConstraintsOpt) { 826 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 827 case NAME##Model: \ 828 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 829 break; 830 #include "clang/StaticAnalyzer/Core/Analyses.def" 831 default: 832 llvm_unreachable("Tried to generate unknown analysis constraint."); 833 } 834 } 835 836 if (Opts.AnalysisDiagOpt != PD_HTML) { 837 switch (Opts.AnalysisDiagOpt) { 838 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 839 case PD_##NAME: \ 840 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 841 break; 842 #include "clang/StaticAnalyzer/Core/Analyses.def" 843 default: 844 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 845 } 846 } 847 848 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 849 switch (Opts.AnalysisPurgeOpt) { 850 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 851 case NAME: \ 852 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 853 break; 854 #include "clang/StaticAnalyzer/Core/Analyses.def" 855 default: 856 llvm_unreachable("Tried to generate unknown analysis purge mode."); 857 } 858 } 859 860 if (Opts.InliningMode != NoRedundancy) { 861 switch (Opts.InliningMode) { 862 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 863 case NAME: \ 864 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 865 break; 866 #include "clang/StaticAnalyzer/Core/Analyses.def" 867 default: 868 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 869 } 870 } 871 872 for (const auto &CP : Opts.CheckersAndPackages) { 873 OptSpecifier Opt = 874 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 875 GenerateArg(Args, Opt, CP.first, SA); 876 } 877 878 AnalyzerOptions ConfigOpts; 879 parseAnalyzerConfigs(ConfigOpts, nullptr); 880 881 for (const auto &C : Opts.Config) { 882 // Don't generate anything that came from parseAnalyzerConfigs. It would be 883 // redundant and may not be valid on the command line. 884 auto Entry = ConfigOpts.Config.find(C.getKey()); 885 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 886 continue; 887 888 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 889 } 890 891 // Nothing to generate for FullCompilerInvocation. 892 } 893 894 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 895 DiagnosticsEngine &Diags) { 896 unsigned NumErrorsBefore = Diags.getNumErrors(); 897 898 AnalyzerOptions *AnalyzerOpts = &Opts; 899 900 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 901 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 902 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 903 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 904 MERGER, EXTRACTOR, TABLE_INDEX) \ 905 PARSE_OPTION_WITH_MARSHALLING( \ 906 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 907 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 908 #include "clang/Driver/Options.inc" 909 #undef ANALYZER_OPTION_WITH_MARSHALLING 910 911 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 912 StringRef Name = A->getValue(); 913 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 914 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 915 .Case(CMDFLAG, NAME##Model) 916 #include "clang/StaticAnalyzer/Core/Analyses.def" 917 .Default(NumConstraints); 918 if (Value == NumConstraints) { 919 Diags.Report(diag::err_drv_invalid_value) 920 << A->getAsString(Args) << Name; 921 } else { 922 #ifndef LLVM_WITH_Z3 923 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 924 Diags.Report(diag::err_analyzer_not_built_with_z3); 925 } 926 #endif // LLVM_WITH_Z3 927 Opts.AnalysisConstraintsOpt = Value; 928 } 929 } 930 931 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 932 StringRef Name = A->getValue(); 933 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 934 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 935 .Case(CMDFLAG, PD_##NAME) 936 #include "clang/StaticAnalyzer/Core/Analyses.def" 937 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 938 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 939 Diags.Report(diag::err_drv_invalid_value) 940 << A->getAsString(Args) << Name; 941 } else { 942 Opts.AnalysisDiagOpt = Value; 943 } 944 } 945 946 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 947 StringRef Name = A->getValue(); 948 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 949 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 950 .Case(CMDFLAG, NAME) 951 #include "clang/StaticAnalyzer/Core/Analyses.def" 952 .Default(NumPurgeModes); 953 if (Value == NumPurgeModes) { 954 Diags.Report(diag::err_drv_invalid_value) 955 << A->getAsString(Args) << Name; 956 } else { 957 Opts.AnalysisPurgeOpt = Value; 958 } 959 } 960 961 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 962 StringRef Name = A->getValue(); 963 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 964 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 965 .Case(CMDFLAG, NAME) 966 #include "clang/StaticAnalyzer/Core/Analyses.def" 967 .Default(NumInliningModes); 968 if (Value == NumInliningModes) { 969 Diags.Report(diag::err_drv_invalid_value) 970 << A->getAsString(Args) << Name; 971 } else { 972 Opts.InliningMode = Value; 973 } 974 } 975 976 Opts.CheckersAndPackages.clear(); 977 for (const Arg *A : 978 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 979 A->claim(); 980 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 981 // We can have a list of comma separated checker names, e.g: 982 // '-analyzer-checker=cocoa,unix' 983 StringRef CheckerAndPackageList = A->getValue(); 984 SmallVector<StringRef, 16> CheckersAndPackages; 985 CheckerAndPackageList.split(CheckersAndPackages, ","); 986 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 987 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 988 IsEnabled); 989 } 990 991 // Go through the analyzer configuration options. 992 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 993 994 // We can have a list of comma separated config names, e.g: 995 // '-analyzer-config key1=val1,key2=val2' 996 StringRef configList = A->getValue(); 997 SmallVector<StringRef, 4> configVals; 998 configList.split(configVals, ","); 999 for (const auto &configVal : configVals) { 1000 StringRef key, val; 1001 std::tie(key, val) = configVal.split("="); 1002 if (val.empty()) { 1003 Diags.Report(SourceLocation(), 1004 diag::err_analyzer_config_no_value) << configVal; 1005 break; 1006 } 1007 if (val.contains('=')) { 1008 Diags.Report(SourceLocation(), 1009 diag::err_analyzer_config_multiple_values) 1010 << configVal; 1011 break; 1012 } 1013 1014 // TODO: Check checker options too, possibly in CheckerRegistry. 1015 // Leave unknown non-checker configs unclaimed. 1016 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1017 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1018 Diags.Report(diag::err_analyzer_config_unknown) << key; 1019 continue; 1020 } 1021 1022 A->claim(); 1023 Opts.Config[key] = std::string(val); 1024 1025 // FIXME: Remove this hunk after clang-17 released. 1026 constexpr auto SingleFAM = 1027 "consider-single-element-arrays-as-flexible-array-members"; 1028 if (key == SingleFAM) { 1029 Diags.Report(diag::warn_analyzer_deprecated_option_with_alternative) 1030 << SingleFAM << "clang-17" 1031 << "-fstrict-flex-arrays=<N>"; 1032 } 1033 } 1034 } 1035 1036 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1037 parseAnalyzerConfigs(Opts, &Diags); 1038 else 1039 parseAnalyzerConfigs(Opts, nullptr); 1040 1041 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1042 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1043 if (i != 0) 1044 os << " "; 1045 os << Args.getArgString(i); 1046 } 1047 os.flush(); 1048 1049 return Diags.getNumErrors() == NumErrorsBefore; 1050 } 1051 1052 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1053 StringRef OptionName, StringRef DefaultVal) { 1054 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1055 } 1056 1057 static void initOption(AnalyzerOptions::ConfigTable &Config, 1058 DiagnosticsEngine *Diags, 1059 StringRef &OptionField, StringRef Name, 1060 StringRef DefaultVal) { 1061 // String options may be known to invalid (e.g. if the expected string is a 1062 // file name, but the file does not exist), those will have to be checked in 1063 // parseConfigs. 1064 OptionField = getStringOption(Config, Name, DefaultVal); 1065 } 1066 1067 static void initOption(AnalyzerOptions::ConfigTable &Config, 1068 DiagnosticsEngine *Diags, 1069 bool &OptionField, StringRef Name, bool DefaultVal) { 1070 auto PossiblyInvalidVal = 1071 llvm::StringSwitch<std::optional<bool>>( 1072 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1073 .Case("true", true) 1074 .Case("false", false) 1075 .Default(std::nullopt); 1076 1077 if (!PossiblyInvalidVal) { 1078 if (Diags) 1079 Diags->Report(diag::err_analyzer_config_invalid_input) 1080 << Name << "a boolean"; 1081 else 1082 OptionField = DefaultVal; 1083 } else 1084 OptionField = *PossiblyInvalidVal; 1085 } 1086 1087 static void initOption(AnalyzerOptions::ConfigTable &Config, 1088 DiagnosticsEngine *Diags, 1089 unsigned &OptionField, StringRef Name, 1090 unsigned DefaultVal) { 1091 1092 OptionField = DefaultVal; 1093 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1094 .getAsInteger(0, OptionField); 1095 if (Diags && HasFailed) 1096 Diags->Report(diag::err_analyzer_config_invalid_input) 1097 << Name << "an unsigned"; 1098 } 1099 1100 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1101 DiagnosticsEngine *Diags) { 1102 // TODO: There's no need to store the entire configtable, it'd be plenty 1103 // enough to store checker options. 1104 1105 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1106 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1107 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1108 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1109 1110 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1111 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1112 1113 #define ANALYZER_OPTION(...) 1114 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1115 SHALLOW_VAL, DEEP_VAL) \ 1116 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1117 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1118 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1119 1120 // At this point, AnalyzerOptions is configured. Let's validate some options. 1121 1122 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1123 // The current approach only validates the registered checkers which does not 1124 // contain the runtime enabled checkers and optimally we would validate both. 1125 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1126 std::vector<StringRef> Checkers = 1127 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1128 std::vector<StringRef> Packages = 1129 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1130 1131 SmallVector<StringRef, 16> CheckersAndPackages; 1132 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1133 1134 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1135 if (Diags) { 1136 bool IsChecker = CheckerOrPackage.contains('.'); 1137 bool IsValidName = IsChecker 1138 ? llvm::is_contained(Checkers, CheckerOrPackage) 1139 : llvm::is_contained(Packages, CheckerOrPackage); 1140 1141 if (!IsValidName) 1142 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1143 << CheckerOrPackage; 1144 } 1145 1146 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1147 } 1148 } 1149 1150 if (!Diags) 1151 return; 1152 1153 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1154 Diags->Report(diag::err_analyzer_config_invalid_input) 1155 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1156 1157 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1158 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1159 << "a filename"; 1160 1161 if (!AnOpts.ModelPath.empty() && 1162 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1163 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1164 << "a filename"; 1165 } 1166 1167 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1168 static void 1169 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1170 CompilerInvocation::StringAllocator SA, 1171 OptSpecifier OptEQ, StringRef Name, 1172 const CodeGenOptions::OptRemark &Remark) { 1173 if (Remark.hasValidPattern()) { 1174 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1175 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1176 GenerateArg(Args, OPT_R_Joined, Name, SA); 1177 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1178 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1179 } 1180 } 1181 1182 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1183 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1184 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1185 static CodeGenOptions::OptRemark 1186 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1187 OptSpecifier OptEQ, StringRef Name) { 1188 CodeGenOptions::OptRemark Result; 1189 1190 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1191 StringRef Pattern) { 1192 Result.Pattern = Pattern.str(); 1193 1194 std::string RegexError; 1195 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1196 if (!Result.Regex->isValid(RegexError)) { 1197 Diags.Report(diag::err_drv_optimization_remark_pattern) 1198 << RegexError << A->getAsString(Args); 1199 return false; 1200 } 1201 1202 return true; 1203 }; 1204 1205 for (Arg *A : Args) { 1206 if (A->getOption().matches(OPT_R_Joined)) { 1207 StringRef Value = A->getValue(); 1208 1209 if (Value == Name) 1210 Result.Kind = CodeGenOptions::RK_Enabled; 1211 else if (Value == "everything") 1212 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1213 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1214 Result.Kind = CodeGenOptions::RK_Disabled; 1215 else if (Value == "no-everything") 1216 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1217 else 1218 continue; 1219 1220 if (Result.Kind == CodeGenOptions::RK_Disabled || 1221 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1222 Result.Pattern = ""; 1223 Result.Regex = nullptr; 1224 } else { 1225 InitializeResultPattern(A, ".*"); 1226 } 1227 } else if (A->getOption().matches(OptEQ)) { 1228 Result.Kind = CodeGenOptions::RK_WithPattern; 1229 if (!InitializeResultPattern(A, A->getValue())) 1230 return CodeGenOptions::OptRemark(); 1231 } 1232 } 1233 1234 return Result; 1235 } 1236 1237 static bool parseDiagnosticLevelMask(StringRef FlagName, 1238 const std::vector<std::string> &Levels, 1239 DiagnosticsEngine &Diags, 1240 DiagnosticLevelMask &M) { 1241 bool Success = true; 1242 for (const auto &Level : Levels) { 1243 DiagnosticLevelMask const PM = 1244 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1245 .Case("note", DiagnosticLevelMask::Note) 1246 .Case("remark", DiagnosticLevelMask::Remark) 1247 .Case("warning", DiagnosticLevelMask::Warning) 1248 .Case("error", DiagnosticLevelMask::Error) 1249 .Default(DiagnosticLevelMask::None); 1250 if (PM == DiagnosticLevelMask::None) { 1251 Success = false; 1252 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1253 } 1254 M = M | PM; 1255 } 1256 return Success; 1257 } 1258 1259 static void parseSanitizerKinds(StringRef FlagName, 1260 const std::vector<std::string> &Sanitizers, 1261 DiagnosticsEngine &Diags, SanitizerSet &S) { 1262 for (const auto &Sanitizer : Sanitizers) { 1263 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1264 if (K == SanitizerMask()) 1265 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1266 else 1267 S.set(K, true); 1268 } 1269 } 1270 1271 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1272 SmallVector<StringRef, 4> Values; 1273 serializeSanitizerSet(S, Values); 1274 return Values; 1275 } 1276 1277 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1278 ArgList &Args, DiagnosticsEngine &D, 1279 XRayInstrSet &S) { 1280 llvm::SmallVector<StringRef, 2> BundleParts; 1281 llvm::SplitString(Bundle, BundleParts, ","); 1282 for (const auto &B : BundleParts) { 1283 auto Mask = parseXRayInstrValue(B); 1284 if (Mask == XRayInstrKind::None) 1285 if (B != "none") 1286 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1287 else 1288 S.Mask = Mask; 1289 else if (Mask == XRayInstrKind::All) 1290 S.Mask = Mask; 1291 else 1292 S.set(Mask, true); 1293 } 1294 } 1295 1296 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1297 llvm::SmallVector<StringRef, 2> BundleParts; 1298 serializeXRayInstrValue(S, BundleParts); 1299 std::string Buffer; 1300 llvm::raw_string_ostream OS(Buffer); 1301 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1302 return Buffer; 1303 } 1304 1305 // Set the profile kind using fprofile-instrument-use-path. 1306 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1307 const Twine &ProfileName, 1308 DiagnosticsEngine &Diags) { 1309 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1310 if (auto E = ReaderOrErr.takeError()) { 1311 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1312 "Error in reading profile %0: %1"); 1313 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1314 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1315 }); 1316 return; 1317 } 1318 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1319 std::move(ReaderOrErr.get()); 1320 // Currently memprof profiles are only added at the IR level. Mark the profile 1321 // type as IR in that case as well and the subsequent matching needs to detect 1322 // which is available (might be one or both). 1323 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1324 if (PGOReader->hasCSIRLevelProfile()) 1325 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1326 else 1327 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1328 } else 1329 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1330 } 1331 1332 void CompilerInvocation::GenerateCodeGenArgs( 1333 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1334 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1335 const LangOptions *LangOpts) { 1336 const CodeGenOptions &CodeGenOpts = Opts; 1337 1338 if (Opts.OptimizationLevel == 0) 1339 GenerateArg(Args, OPT_O0, SA); 1340 else 1341 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1342 1343 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1344 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1345 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1346 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1347 MERGER, EXTRACTOR, TABLE_INDEX) \ 1348 GENERATE_OPTION_WITH_MARSHALLING( \ 1349 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1350 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1351 #include "clang/Driver/Options.inc" 1352 #undef CODEGEN_OPTION_WITH_MARSHALLING 1353 1354 if (Opts.OptimizationLevel > 0) { 1355 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1356 GenerateArg(Args, OPT_finline_functions, SA); 1357 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1358 GenerateArg(Args, OPT_finline_hint_functions, SA); 1359 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1360 GenerateArg(Args, OPT_fno_inline, SA); 1361 } 1362 1363 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1364 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1365 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1366 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1367 1368 std::optional<StringRef> DebugInfoVal; 1369 switch (Opts.DebugInfo) { 1370 case codegenoptions::DebugLineTablesOnly: 1371 DebugInfoVal = "line-tables-only"; 1372 break; 1373 case codegenoptions::DebugDirectivesOnly: 1374 DebugInfoVal = "line-directives-only"; 1375 break; 1376 case codegenoptions::DebugInfoConstructor: 1377 DebugInfoVal = "constructor"; 1378 break; 1379 case codegenoptions::LimitedDebugInfo: 1380 DebugInfoVal = "limited"; 1381 break; 1382 case codegenoptions::FullDebugInfo: 1383 DebugInfoVal = "standalone"; 1384 break; 1385 case codegenoptions::UnusedTypeInfo: 1386 DebugInfoVal = "unused-types"; 1387 break; 1388 case codegenoptions::NoDebugInfo: // default value 1389 DebugInfoVal = std::nullopt; 1390 break; 1391 case codegenoptions::LocTrackingOnly: // implied value 1392 DebugInfoVal = std::nullopt; 1393 break; 1394 } 1395 if (DebugInfoVal) 1396 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1397 1398 for (const auto &Prefix : Opts.DebugPrefixMap) 1399 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1400 Prefix.first + "=" + Prefix.second, SA); 1401 1402 for (const auto &Prefix : Opts.CoveragePrefixMap) 1403 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1404 Prefix.first + "=" + Prefix.second, SA); 1405 1406 if (Opts.NewStructPathTBAA) 1407 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1408 1409 if (Opts.OptimizeSize == 1) 1410 GenerateArg(Args, OPT_O, "s", SA); 1411 else if (Opts.OptimizeSize == 2) 1412 GenerateArg(Args, OPT_O, "z", SA); 1413 1414 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1415 // -ffreestanding. We'll consider that when generating them. 1416 1417 // NoBuiltinFuncs are generated by LangOptions. 1418 1419 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1420 GenerateArg(Args, OPT_funroll_loops, SA); 1421 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1422 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1423 1424 if (!Opts.BinutilsVersion.empty()) 1425 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1426 1427 if (Opts.DebugNameTable == 1428 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1429 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1430 else if (Opts.DebugNameTable == 1431 static_cast<unsigned>( 1432 llvm::DICompileUnit::DebugNameTableKind::Default)) 1433 GenerateArg(Args, OPT_gpubnames, SA); 1434 1435 auto TNK = Opts.getDebugSimpleTemplateNames(); 1436 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1437 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1438 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1439 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1440 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1441 } 1442 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1443 // it or PGOUseInstrumentor. 1444 1445 if (Opts.TimePasses) { 1446 if (Opts.TimePassesPerRun) 1447 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1448 else 1449 GenerateArg(Args, OPT_ftime_report, SA); 1450 } 1451 1452 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1453 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1454 1455 if (Opts.PrepareForThinLTO) 1456 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1457 1458 if (!Opts.ThinLTOIndexFile.empty()) 1459 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1460 1461 if (Opts.SaveTempsFilePrefix == OutputFile) 1462 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1463 1464 StringRef MemProfileBasename("memprof.profraw"); 1465 if (!Opts.MemoryProfileOutput.empty()) { 1466 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1467 GenerateArg(Args, OPT_fmemory_profile, SA); 1468 } else { 1469 size_t ArgLength = 1470 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1471 GenerateArg(Args, OPT_fmemory_profile_EQ, 1472 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1473 } 1474 } 1475 1476 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1477 GenerateArg(Args, OPT_coverage_version_EQ, 1478 StringRef(Opts.CoverageVersion, 4), SA); 1479 1480 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1481 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1482 // won't be generated.) 1483 1484 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1485 std::string InstrBundle = 1486 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1487 if (!InstrBundle.empty()) 1488 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1489 } 1490 1491 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1492 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1493 else if (Opts.CFProtectionReturn) 1494 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1495 else if (Opts.CFProtectionBranch) 1496 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1497 1498 if (Opts.FunctionReturnThunks) 1499 GenerateArg(Args, OPT_mfunction_return_EQ, "thunk-extern", SA); 1500 1501 for (const auto &F : Opts.LinkBitcodeFiles) { 1502 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1503 F.PropagateAttrs && F.Internalize; 1504 GenerateArg(Args, 1505 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1506 F.Filename, SA); 1507 } 1508 1509 GenerateArg( 1510 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1511 1512 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1513 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1514 1515 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1516 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1517 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1518 SA); 1519 1520 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1521 OptSpecifier Opt = 1522 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1523 GenerateArg(Args, Opt, SA); 1524 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1525 OptSpecifier Opt = 1526 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1527 GenerateArg(Args, Opt, SA); 1528 } 1529 1530 if (Opts.EnableAIXExtendedAltivecABI) 1531 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1532 1533 if (!Opts.OptRecordPasses.empty()) 1534 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1535 1536 if (!Opts.OptRecordFormat.empty()) 1537 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1538 1539 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1540 Opts.OptimizationRemark); 1541 1542 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1543 Opts.OptimizationRemarkMissed); 1544 1545 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1546 Opts.OptimizationRemarkAnalysis); 1547 1548 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1549 Opts.DiagnosticsHotnessThreshold 1550 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1551 : "auto", 1552 SA); 1553 1554 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1555 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1556 1557 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1558 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1559 1560 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1561 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1562 1563 if (!Opts.EmitVersionIdentMetadata) 1564 GenerateArg(Args, OPT_Qn, SA); 1565 1566 switch (Opts.FiniteLoops) { 1567 case CodeGenOptions::FiniteLoopsKind::Language: 1568 break; 1569 case CodeGenOptions::FiniteLoopsKind::Always: 1570 GenerateArg(Args, OPT_ffinite_loops, SA); 1571 break; 1572 case CodeGenOptions::FiniteLoopsKind::Never: 1573 GenerateArg(Args, OPT_fno_finite_loops, SA); 1574 break; 1575 } 1576 } 1577 1578 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1579 InputKind IK, 1580 DiagnosticsEngine &Diags, 1581 const llvm::Triple &T, 1582 const std::string &OutputFile, 1583 const LangOptions &LangOptsRef) { 1584 unsigned NumErrorsBefore = Diags.getNumErrors(); 1585 1586 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1587 // TODO: This could be done in Driver 1588 unsigned MaxOptLevel = 3; 1589 if (OptimizationLevel > MaxOptLevel) { 1590 // If the optimization level is not supported, fall back on the default 1591 // optimization 1592 Diags.Report(diag::warn_drv_optimization_value) 1593 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1594 OptimizationLevel = MaxOptLevel; 1595 } 1596 Opts.OptimizationLevel = OptimizationLevel; 1597 1598 // The key paths of codegen options defined in Options.td start with 1599 // "CodeGenOpts.". Let's provide the expected variable name and type. 1600 CodeGenOptions &CodeGenOpts = Opts; 1601 // Some codegen options depend on language options. Let's provide the expected 1602 // variable name and type. 1603 const LangOptions *LangOpts = &LangOptsRef; 1604 1605 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1606 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1607 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1608 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1609 MERGER, EXTRACTOR, TABLE_INDEX) \ 1610 PARSE_OPTION_WITH_MARSHALLING( \ 1611 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1612 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1613 #include "clang/Driver/Options.inc" 1614 #undef CODEGEN_OPTION_WITH_MARSHALLING 1615 1616 // At O0 we want to fully disable inlining outside of cases marked with 1617 // 'alwaysinline' that are required for correctness. 1618 if (Opts.OptimizationLevel == 0) { 1619 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1620 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1621 options::OPT_finline_hint_functions, 1622 options::OPT_fno_inline_functions, 1623 options::OPT_fno_inline)) { 1624 // Explicit inlining flags can disable some or all inlining even at 1625 // optimization levels above zero. 1626 if (A->getOption().matches(options::OPT_finline_functions)) 1627 Opts.setInlining(CodeGenOptions::NormalInlining); 1628 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1629 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1630 else 1631 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1632 } else { 1633 Opts.setInlining(CodeGenOptions::NormalInlining); 1634 } 1635 1636 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1637 // -fdirect-access-external-data. 1638 Opts.DirectAccessExternalData = 1639 Args.hasArg(OPT_fdirect_access_external_data) || 1640 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1641 LangOpts->PICLevel == 0); 1642 1643 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1644 unsigned Val = 1645 llvm::StringSwitch<unsigned>(A->getValue()) 1646 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1647 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1648 .Case("constructor", codegenoptions::DebugInfoConstructor) 1649 .Case("limited", codegenoptions::LimitedDebugInfo) 1650 .Case("standalone", codegenoptions::FullDebugInfo) 1651 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1652 .Default(~0U); 1653 if (Val == ~0U) 1654 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1655 << A->getValue(); 1656 else 1657 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1658 } 1659 1660 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1661 // constructor homing, and vice versa for -fno-use-ctor-homing. 1662 if (const Arg *A = 1663 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1664 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1665 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1666 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1667 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1668 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1669 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1670 } 1671 1672 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1673 auto Split = StringRef(Arg).split('='); 1674 Opts.DebugPrefixMap.insert( 1675 {std::string(Split.first), std::string(Split.second)}); 1676 } 1677 1678 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1679 auto Split = StringRef(Arg).split('='); 1680 Opts.CoveragePrefixMap.insert( 1681 {std::string(Split.first), std::string(Split.second)}); 1682 } 1683 1684 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1685 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1686 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1687 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1688 1689 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1690 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1691 Opts.EmitCallSiteInfo = true; 1692 1693 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1694 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1695 << Opts.DIBugsReportFilePath; 1696 Opts.DIBugsReportFilePath = ""; 1697 } 1698 1699 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1700 Args.hasArg(OPT_new_struct_path_tbaa); 1701 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1702 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1703 if (Opts.SimplifyLibCalls) 1704 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1705 Opts.UnrollLoops = 1706 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1707 (Opts.OptimizationLevel > 1)); 1708 Opts.BinutilsVersion = 1709 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1710 1711 Opts.DebugNameTable = static_cast<unsigned>( 1712 Args.hasArg(OPT_ggnu_pubnames) 1713 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1714 : Args.hasArg(OPT_gpubnames) 1715 ? llvm::DICompileUnit::DebugNameTableKind::Default 1716 : llvm::DICompileUnit::DebugNameTableKind::None); 1717 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1718 StringRef Value = A->getValue(); 1719 if (Value != "simple" && Value != "mangled") 1720 Diags.Report(diag::err_drv_unsupported_option_argument) 1721 << A->getSpelling() << A->getValue(); 1722 Opts.setDebugSimpleTemplateNames( 1723 StringRef(A->getValue()) == "simple" 1724 ? codegenoptions::DebugTemplateNamesKind::Simple 1725 : codegenoptions::DebugTemplateNamesKind::Mangled); 1726 } 1727 1728 if (!Opts.ProfileInstrumentUsePath.empty()) 1729 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath, Diags); 1730 1731 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1732 Opts.TimePasses = true; 1733 1734 // -ftime-report= is only for new pass manager. 1735 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1736 StringRef Val = A->getValue(); 1737 if (Val == "per-pass") 1738 Opts.TimePassesPerRun = false; 1739 else if (Val == "per-pass-run") 1740 Opts.TimePassesPerRun = true; 1741 else 1742 Diags.Report(diag::err_drv_invalid_value) 1743 << A->getAsString(Args) << A->getValue(); 1744 } 1745 } 1746 1747 Opts.PrepareForLTO = false; 1748 Opts.PrepareForThinLTO = false; 1749 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1750 Opts.PrepareForLTO = true; 1751 StringRef S = A->getValue(); 1752 if (S == "thin") 1753 Opts.PrepareForThinLTO = true; 1754 else if (S != "full") 1755 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1756 } 1757 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1758 if (IK.getLanguage() != Language::LLVM_IR) 1759 Diags.Report(diag::err_drv_argument_only_allowed_with) 1760 << A->getAsString(Args) << "-x ir"; 1761 Opts.ThinLTOIndexFile = 1762 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1763 } 1764 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1765 Opts.SaveTempsFilePrefix = 1766 llvm::StringSwitch<std::string>(A->getValue()) 1767 .Case("obj", OutputFile) 1768 .Default(llvm::sys::path::filename(OutputFile).str()); 1769 1770 // The memory profile runtime appends the pid to make this name more unique. 1771 const char *MemProfileBasename = "memprof.profraw"; 1772 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1773 SmallString<128> Path( 1774 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1775 llvm::sys::path::append(Path, MemProfileBasename); 1776 Opts.MemoryProfileOutput = std::string(Path); 1777 } else if (Args.hasArg(OPT_fmemory_profile)) 1778 Opts.MemoryProfileOutput = MemProfileBasename; 1779 1780 memcpy(Opts.CoverageVersion, "408*", 4); 1781 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1782 if (Args.hasArg(OPT_coverage_version_EQ)) { 1783 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1784 if (CoverageVersion.size() != 4) { 1785 Diags.Report(diag::err_drv_invalid_value) 1786 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1787 << CoverageVersion; 1788 } else { 1789 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1790 } 1791 } 1792 } 1793 // FIXME: For backend options that are not yet recorded as function 1794 // attributes in the IR, keep track of them so we can embed them in a 1795 // separate data section and use them when building the bitcode. 1796 for (const auto &A : Args) { 1797 // Do not encode output and input. 1798 if (A->getOption().getID() == options::OPT_o || 1799 A->getOption().getID() == options::OPT_INPUT || 1800 A->getOption().getID() == options::OPT_x || 1801 A->getOption().getID() == options::OPT_fembed_bitcode || 1802 A->getOption().matches(options::OPT_W_Group)) 1803 continue; 1804 ArgStringList ASL; 1805 A->render(Args, ASL); 1806 for (const auto &arg : ASL) { 1807 StringRef ArgStr(arg); 1808 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1809 // using \00 to separate each commandline options. 1810 Opts.CmdArgs.push_back('\0'); 1811 } 1812 } 1813 1814 auto XRayInstrBundles = 1815 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1816 if (XRayInstrBundles.empty()) 1817 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1818 else 1819 for (const auto &A : XRayInstrBundles) 1820 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1821 Diags, Opts.XRayInstrumentationBundle); 1822 1823 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1824 StringRef Name = A->getValue(); 1825 if (Name == "full") { 1826 Opts.CFProtectionReturn = 1; 1827 Opts.CFProtectionBranch = 1; 1828 } else if (Name == "return") 1829 Opts.CFProtectionReturn = 1; 1830 else if (Name == "branch") 1831 Opts.CFProtectionBranch = 1; 1832 else if (Name != "none") 1833 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1834 } 1835 1836 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1837 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1838 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1839 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1840 .Default(llvm::FunctionReturnThunksKind::Invalid); 1841 // SystemZ might want to add support for "expolines." 1842 if (!T.isX86()) 1843 Diags.Report(diag::err_drv_argument_not_allowed_with) 1844 << A->getSpelling() << T.getTriple(); 1845 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1846 Diags.Report(diag::err_drv_invalid_value) 1847 << A->getAsString(Args) << A->getValue(); 1848 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1849 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1850 Diags.Report(diag::err_drv_argument_not_allowed_with) 1851 << A->getAsString(Args) 1852 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1853 else 1854 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1855 } 1856 1857 for (auto *A : 1858 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1859 CodeGenOptions::BitcodeFileToLink F; 1860 F.Filename = A->getValue(); 1861 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1862 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1863 // When linking CUDA bitcode, propagate function attributes so that 1864 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1865 F.PropagateAttrs = true; 1866 F.Internalize = true; 1867 } 1868 Opts.LinkBitcodeFiles.push_back(F); 1869 } 1870 1871 if (!Args.getLastArg(OPT_femulated_tls) && 1872 !Args.getLastArg(OPT_fno_emulated_tls)) { 1873 Opts.EmulatedTLS = T.hasDefaultEmulatedTLS(); 1874 } 1875 1876 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1877 if (T.isOSAIX()) { 1878 StringRef Name = A->getValue(); 1879 if (Name != "global-dynamic") 1880 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1881 } 1882 } 1883 1884 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1885 StringRef Val = A->getValue(); 1886 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1887 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1888 if (!Opts.FPDenormalMode.isValid()) 1889 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1890 } 1891 1892 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1893 StringRef Val = A->getValue(); 1894 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1895 if (!Opts.FP32DenormalMode.isValid()) 1896 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1897 } 1898 1899 // X86_32 has -fppc-struct-return and -freg-struct-return. 1900 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1901 if (Arg *A = 1902 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1903 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1904 // TODO: We might want to consider enabling these options on AIX in the 1905 // future. 1906 if (T.isOSAIX()) 1907 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1908 << A->getSpelling() << T.str(); 1909 1910 const Option &O = A->getOption(); 1911 if (O.matches(OPT_fpcc_struct_return) || 1912 O.matches(OPT_maix_struct_return)) { 1913 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1914 } else { 1915 assert(O.matches(OPT_freg_struct_return) || 1916 O.matches(OPT_msvr4_struct_return)); 1917 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1918 } 1919 } 1920 1921 if (Arg *A = 1922 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1923 if (!T.isOSAIX()) 1924 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1925 << A->getSpelling() << T.str(); 1926 1927 const Option &O = A->getOption(); 1928 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1929 } 1930 1931 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1932 if (!T.isOSAIX() || T.isPPC32()) 1933 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1934 << A->getSpelling() << T.str(); 1935 } 1936 1937 bool NeedLocTracking = false; 1938 1939 if (!Opts.OptRecordFile.empty()) 1940 NeedLocTracking = true; 1941 1942 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1943 Opts.OptRecordPasses = A->getValue(); 1944 NeedLocTracking = true; 1945 } 1946 1947 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1948 Opts.OptRecordFormat = A->getValue(); 1949 NeedLocTracking = true; 1950 } 1951 1952 Opts.OptimizationRemark = 1953 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1954 1955 Opts.OptimizationRemarkMissed = 1956 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1957 1958 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1959 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1960 1961 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1962 Opts.OptimizationRemarkMissed.hasValidPattern() || 1963 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1964 1965 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1966 bool UsingProfile = UsingSampleProfile || 1967 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1968 1969 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1970 // An IR file will contain PGO as metadata 1971 IK.getLanguage() != Language::LLVM_IR) 1972 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1973 << "-fdiagnostics-show-hotness"; 1974 1975 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1976 if (auto *arg = 1977 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1978 auto ResultOrErr = 1979 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1980 1981 if (!ResultOrErr) { 1982 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1983 << "-fdiagnostics-hotness-threshold="; 1984 } else { 1985 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1986 if ((!Opts.DiagnosticsHotnessThreshold || 1987 *Opts.DiagnosticsHotnessThreshold > 0) && 1988 !UsingProfile) 1989 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1990 << "-fdiagnostics-hotness-threshold="; 1991 } 1992 } 1993 1994 if (auto *arg = 1995 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1996 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1997 1998 if (!ResultOrErr) { 1999 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2000 << "-fdiagnostics-misexpect-tolerance="; 2001 } else { 2002 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2003 if ((!Opts.DiagnosticsMisExpectTolerance || 2004 *Opts.DiagnosticsMisExpectTolerance > 0) && 2005 !UsingProfile) 2006 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2007 << "-fdiagnostics-misexpect-tolerance="; 2008 } 2009 } 2010 2011 // If the user requested to use a sample profile for PGO, then the 2012 // backend will need to track source location information so the profile 2013 // can be incorporated into the IR. 2014 if (UsingSampleProfile) 2015 NeedLocTracking = true; 2016 2017 if (!Opts.StackUsageOutput.empty()) 2018 NeedLocTracking = true; 2019 2020 // If the user requested a flag that requires source locations available in 2021 // the backend, make sure that the backend tracks source location information. 2022 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2023 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2024 2025 // Parse -fsanitize-recover= arguments. 2026 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2027 parseSanitizerKinds("-fsanitize-recover=", 2028 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2029 Opts.SanitizeRecover); 2030 parseSanitizerKinds("-fsanitize-trap=", 2031 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2032 Opts.SanitizeTrap); 2033 2034 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2035 2036 if (Args.hasArg(options::OPT_ffinite_loops)) 2037 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2038 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2039 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2040 2041 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2042 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2043 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2044 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2045 2046 return Diags.getNumErrors() == NumErrorsBefore; 2047 } 2048 2049 static void 2050 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2051 SmallVectorImpl<const char *> &Args, 2052 CompilerInvocation::StringAllocator SA) { 2053 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2054 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2055 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2056 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2057 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2058 MERGER, EXTRACTOR, TABLE_INDEX) \ 2059 GENERATE_OPTION_WITH_MARSHALLING( \ 2060 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2061 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2062 #include "clang/Driver/Options.inc" 2063 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2064 2065 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2066 GenerateArg(Args, OPT_show_includes, SA); 2067 2068 for (const auto &Dep : Opts.ExtraDeps) { 2069 switch (Dep.second) { 2070 case EDK_SanitizeIgnorelist: 2071 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2072 continue; 2073 case EDK_ModuleFile: 2074 // Module file arguments are generated from FrontendOptions and 2075 // HeaderSearchOptions. 2076 continue; 2077 case EDK_ProfileList: 2078 // Profile list arguments are generated from LanguageOptions via the 2079 // marshalling infrastructure. 2080 continue; 2081 case EDK_DepFileEntry: 2082 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2083 break; 2084 } 2085 } 2086 } 2087 2088 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2089 ArgList &Args, DiagnosticsEngine &Diags, 2090 frontend::ActionKind Action, 2091 bool ShowLineMarkers) { 2092 unsigned NumErrorsBefore = Diags.getNumErrors(); 2093 2094 DependencyOutputOptions &DependencyOutputOpts = Opts; 2095 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2096 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2097 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2098 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2099 MERGER, EXTRACTOR, TABLE_INDEX) \ 2100 PARSE_OPTION_WITH_MARSHALLING( \ 2101 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2102 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2103 #include "clang/Driver/Options.inc" 2104 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2105 2106 if (Args.hasArg(OPT_show_includes)) { 2107 // Writing both /showIncludes and preprocessor output to stdout 2108 // would produce interleaved output, so use stderr for /showIncludes. 2109 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2110 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2111 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2112 else 2113 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2114 } else { 2115 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2116 } 2117 2118 // Add sanitizer ignorelists as extra dependencies. 2119 // They won't be discovered by the regular preprocessor, so 2120 // we let make / ninja to know about this implicit dependency. 2121 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2122 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2123 StringRef Val = A->getValue(); 2124 if (!Val.contains('=')) 2125 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2126 } 2127 if (Opts.IncludeSystemHeaders) { 2128 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2129 StringRef Val = A->getValue(); 2130 if (!Val.contains('=')) 2131 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2132 } 2133 } 2134 } 2135 2136 // -fprofile-list= dependencies. 2137 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2138 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2139 2140 // Propagate the extra dependencies. 2141 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2142 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2143 2144 // Only the -fmodule-file=<file> form. 2145 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2146 StringRef Val = A->getValue(); 2147 if (!Val.contains('=')) 2148 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2149 } 2150 2151 // Check for invalid combinations of header-include-format 2152 // and header-include-filtering. 2153 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2154 Opts.HeaderIncludeFiltering != HIFIL_None) || 2155 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2156 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2157 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2158 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2159 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2160 2161 return Diags.getNumErrors() == NumErrorsBefore; 2162 } 2163 2164 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2165 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2166 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2167 // Support both clang's -f[no-]color-diagnostics and gcc's 2168 // -f[no-]diagnostics-colors[=never|always|auto]. 2169 enum { 2170 Colors_On, 2171 Colors_Off, 2172 Colors_Auto 2173 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2174 for (auto *A : Args) { 2175 const Option &O = A->getOption(); 2176 if (O.matches(options::OPT_fcolor_diagnostics)) { 2177 ShowColors = Colors_On; 2178 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2179 ShowColors = Colors_Off; 2180 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2181 StringRef Value(A->getValue()); 2182 if (Value == "always") 2183 ShowColors = Colors_On; 2184 else if (Value == "never") 2185 ShowColors = Colors_Off; 2186 else if (Value == "auto") 2187 ShowColors = Colors_Auto; 2188 } 2189 } 2190 return ShowColors == Colors_On || 2191 (ShowColors == Colors_Auto && 2192 llvm::sys::Process::StandardErrHasColors()); 2193 } 2194 2195 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2196 DiagnosticsEngine &Diags) { 2197 bool Success = true; 2198 for (const auto &Prefix : VerifyPrefixes) { 2199 // Every prefix must start with a letter and contain only alphanumeric 2200 // characters, hyphens, and underscores. 2201 auto BadChar = llvm::find_if(Prefix, [](char C) { 2202 return !isAlphanumeric(C) && C != '-' && C != '_'; 2203 }); 2204 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2205 Success = false; 2206 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2207 Diags.Report(diag::note_drv_verify_prefix_spelling); 2208 } 2209 } 2210 return Success; 2211 } 2212 2213 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2214 SmallVectorImpl<const char *> &Args, 2215 CompilerInvocation::StringAllocator SA) { 2216 const FileSystemOptions &FileSystemOpts = Opts; 2217 2218 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2219 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2220 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2221 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2222 MERGER, EXTRACTOR, TABLE_INDEX) \ 2223 GENERATE_OPTION_WITH_MARSHALLING( \ 2224 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2225 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2226 #include "clang/Driver/Options.inc" 2227 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2228 } 2229 2230 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2231 DiagnosticsEngine &Diags) { 2232 unsigned NumErrorsBefore = Diags.getNumErrors(); 2233 2234 FileSystemOptions &FileSystemOpts = Opts; 2235 2236 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2237 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2238 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2239 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2240 MERGER, EXTRACTOR, TABLE_INDEX) \ 2241 PARSE_OPTION_WITH_MARSHALLING( \ 2242 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2243 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2244 #include "clang/Driver/Options.inc" 2245 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2246 2247 return Diags.getNumErrors() == NumErrorsBefore; 2248 } 2249 2250 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2251 SmallVectorImpl<const char *> &Args, 2252 CompilerInvocation::StringAllocator SA) { 2253 const MigratorOptions &MigratorOpts = Opts; 2254 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2255 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2256 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2257 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2258 MERGER, EXTRACTOR, TABLE_INDEX) \ 2259 GENERATE_OPTION_WITH_MARSHALLING( \ 2260 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2261 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2262 #include "clang/Driver/Options.inc" 2263 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2264 } 2265 2266 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2267 DiagnosticsEngine &Diags) { 2268 unsigned NumErrorsBefore = Diags.getNumErrors(); 2269 2270 MigratorOptions &MigratorOpts = Opts; 2271 2272 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2273 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2274 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2275 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2276 MERGER, EXTRACTOR, TABLE_INDEX) \ 2277 PARSE_OPTION_WITH_MARSHALLING( \ 2278 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2279 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2280 #include "clang/Driver/Options.inc" 2281 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2282 2283 return Diags.getNumErrors() == NumErrorsBefore; 2284 } 2285 2286 void CompilerInvocation::GenerateDiagnosticArgs( 2287 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2288 StringAllocator SA, bool DefaultDiagColor) { 2289 const DiagnosticOptions *DiagnosticOpts = &Opts; 2290 #define DIAG_OPTION_WITH_MARSHALLING( \ 2291 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2292 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2293 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2294 MERGER, EXTRACTOR, TABLE_INDEX) \ 2295 GENERATE_OPTION_WITH_MARSHALLING( \ 2296 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2297 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2298 #include "clang/Driver/Options.inc" 2299 #undef DIAG_OPTION_WITH_MARSHALLING 2300 2301 if (!Opts.DiagnosticSerializationFile.empty()) 2302 GenerateArg(Args, OPT_diagnostic_serialized_file, 2303 Opts.DiagnosticSerializationFile, SA); 2304 2305 if (Opts.ShowColors) 2306 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2307 2308 if (Opts.VerifyDiagnostics && 2309 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2310 GenerateArg(Args, OPT_verify, SA); 2311 2312 for (const auto &Prefix : Opts.VerifyPrefixes) 2313 if (Prefix != "expected") 2314 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2315 2316 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2317 if (VIU == DiagnosticLevelMask::None) { 2318 // This is the default, don't generate anything. 2319 } else if (VIU == DiagnosticLevelMask::All) { 2320 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2321 } else { 2322 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2323 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2324 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2325 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2326 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2327 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2328 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2329 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2330 } 2331 2332 for (const auto &Warning : Opts.Warnings) { 2333 // This option is automatically generated from UndefPrefixes. 2334 if (Warning == "undef-prefix") 2335 continue; 2336 Args.push_back(SA(StringRef("-W") + Warning)); 2337 } 2338 2339 for (const auto &Remark : Opts.Remarks) { 2340 // These arguments are generated from OptimizationRemark fields of 2341 // CodeGenOptions. 2342 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2343 "pass-analysis", "no-pass-analysis", 2344 "pass-missed", "no-pass-missed"}; 2345 if (llvm::is_contained(IgnoredRemarks, Remark)) 2346 continue; 2347 2348 Args.push_back(SA(StringRef("-R") + Remark)); 2349 } 2350 } 2351 2352 std::unique_ptr<DiagnosticOptions> 2353 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2354 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2355 unsigned MissingArgIndex, MissingArgCount; 2356 InputArgList Args = getDriverOptTable().ParseArgs( 2357 Argv.slice(1), MissingArgIndex, MissingArgCount); 2358 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2359 // Any errors that would be diagnosed here will also be diagnosed later, 2360 // when the DiagnosticsEngine actually exists. 2361 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2362 return DiagOpts; 2363 } 2364 2365 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2366 DiagnosticsEngine *Diags, 2367 bool DefaultDiagColor) { 2368 std::optional<DiagnosticsEngine> IgnoringDiags; 2369 if (!Diags) { 2370 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2371 new IgnoringDiagConsumer()); 2372 Diags = &*IgnoringDiags; 2373 } 2374 2375 unsigned NumErrorsBefore = Diags->getNumErrors(); 2376 2377 // The key paths of diagnostic options defined in Options.td start with 2378 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2379 DiagnosticOptions *DiagnosticOpts = &Opts; 2380 2381 #define DIAG_OPTION_WITH_MARSHALLING( \ 2382 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2383 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2384 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2385 MERGER, EXTRACTOR, TABLE_INDEX) \ 2386 PARSE_OPTION_WITH_MARSHALLING( \ 2387 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2388 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2389 #include "clang/Driver/Options.inc" 2390 #undef DIAG_OPTION_WITH_MARSHALLING 2391 2392 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2393 2394 if (Arg *A = 2395 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2396 Opts.DiagnosticSerializationFile = A->getValue(); 2397 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2398 2399 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2400 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2401 if (Args.hasArg(OPT_verify)) 2402 Opts.VerifyPrefixes.push_back("expected"); 2403 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2404 // then sort it to prepare for fast lookup using std::binary_search. 2405 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2406 Opts.VerifyDiagnostics = false; 2407 else 2408 llvm::sort(Opts.VerifyPrefixes); 2409 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2410 parseDiagnosticLevelMask( 2411 "-verify-ignore-unexpected=", 2412 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2413 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2414 DiagMask = DiagnosticLevelMask::All; 2415 Opts.setVerifyIgnoreUnexpected(DiagMask); 2416 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2417 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2418 Diags->Report(diag::warn_ignoring_ftabstop_value) 2419 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2420 } 2421 2422 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2423 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2424 2425 return Diags->getNumErrors() == NumErrorsBefore; 2426 } 2427 2428 /// Parse the argument to the -ftest-module-file-extension 2429 /// command-line argument. 2430 /// 2431 /// \returns true on error, false on success. 2432 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2433 std::string &BlockName, 2434 unsigned &MajorVersion, 2435 unsigned &MinorVersion, 2436 bool &Hashed, 2437 std::string &UserInfo) { 2438 SmallVector<StringRef, 5> Args; 2439 Arg.split(Args, ':', 5); 2440 if (Args.size() < 5) 2441 return true; 2442 2443 BlockName = std::string(Args[0]); 2444 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2445 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2446 if (Args[3].getAsInteger(2, Hashed)) return true; 2447 if (Args.size() > 4) 2448 UserInfo = std::string(Args[4]); 2449 return false; 2450 } 2451 2452 /// Return a table that associates command line option specifiers with the 2453 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2454 /// intentionally missing, as this case is handled separately from other 2455 /// frontend options. 2456 static const auto &getFrontendActionTable() { 2457 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2458 {frontend::ASTDeclList, OPT_ast_list}, 2459 2460 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2461 {frontend::ASTDump, OPT_ast_dump_all}, 2462 {frontend::ASTDump, OPT_ast_dump_EQ}, 2463 {frontend::ASTDump, OPT_ast_dump}, 2464 {frontend::ASTDump, OPT_ast_dump_lookups}, 2465 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2466 2467 {frontend::ASTPrint, OPT_ast_print}, 2468 {frontend::ASTView, OPT_ast_view}, 2469 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2470 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2471 {frontend::DumpTokens, OPT_dump_tokens}, 2472 {frontend::EmitAssembly, OPT_S}, 2473 {frontend::EmitBC, OPT_emit_llvm_bc}, 2474 {frontend::EmitHTML, OPT_emit_html}, 2475 {frontend::EmitLLVM, OPT_emit_llvm}, 2476 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2477 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2478 {frontend::EmitObj, OPT_emit_obj}, 2479 {frontend::ExtractAPI, OPT_extract_api}, 2480 2481 {frontend::FixIt, OPT_fixit_EQ}, 2482 {frontend::FixIt, OPT_fixit}, 2483 2484 {frontend::GenerateModule, OPT_emit_module}, 2485 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2486 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2487 {frontend::GeneratePCH, OPT_emit_pch}, 2488 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2489 {frontend::InitOnly, OPT_init_only}, 2490 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2491 {frontend::ModuleFileInfo, OPT_module_file_info}, 2492 {frontend::VerifyPCH, OPT_verify_pch}, 2493 {frontend::PrintPreamble, OPT_print_preamble}, 2494 {frontend::PrintPreprocessedInput, OPT_E}, 2495 {frontend::TemplightDump, OPT_templight_dump}, 2496 {frontend::RewriteMacros, OPT_rewrite_macros}, 2497 {frontend::RewriteObjC, OPT_rewrite_objc}, 2498 {frontend::RewriteTest, OPT_rewrite_test}, 2499 {frontend::RunAnalysis, OPT_analyze}, 2500 {frontend::MigrateSource, OPT_migrate}, 2501 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2502 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2503 OPT_print_dependency_directives_minimized_source}, 2504 }; 2505 2506 return Table; 2507 } 2508 2509 /// Maps command line option to frontend action. 2510 static std::optional<frontend::ActionKind> 2511 getFrontendAction(OptSpecifier &Opt) { 2512 for (const auto &ActionOpt : getFrontendActionTable()) 2513 if (ActionOpt.second == Opt.getID()) 2514 return ActionOpt.first; 2515 2516 return std::nullopt; 2517 } 2518 2519 /// Maps frontend action to command line option. 2520 static std::optional<OptSpecifier> 2521 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2522 for (const auto &ActionOpt : getFrontendActionTable()) 2523 if (ActionOpt.first == ProgramAction) 2524 return OptSpecifier(ActionOpt.second); 2525 2526 return std::nullopt; 2527 } 2528 2529 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2530 SmallVectorImpl<const char *> &Args, 2531 CompilerInvocation::StringAllocator SA, 2532 bool IsHeader) { 2533 const FrontendOptions &FrontendOpts = Opts; 2534 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2535 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2536 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2537 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2538 MERGER, EXTRACTOR, TABLE_INDEX) \ 2539 GENERATE_OPTION_WITH_MARSHALLING( \ 2540 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2541 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2542 #include "clang/Driver/Options.inc" 2543 #undef FRONTEND_OPTION_WITH_MARSHALLING 2544 2545 std::optional<OptSpecifier> ProgramActionOpt = 2546 getProgramActionOpt(Opts.ProgramAction); 2547 2548 // Generating a simple flag covers most frontend actions. 2549 std::function<void()> GenerateProgramAction = [&]() { 2550 GenerateArg(Args, *ProgramActionOpt, SA); 2551 }; 2552 2553 if (!ProgramActionOpt) { 2554 // PluginAction is the only program action handled separately. 2555 assert(Opts.ProgramAction == frontend::PluginAction && 2556 "Frontend action without option."); 2557 GenerateProgramAction = [&]() { 2558 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2559 }; 2560 } 2561 2562 // FIXME: Simplify the complex 'AST dump' command line. 2563 if (Opts.ProgramAction == frontend::ASTDump) { 2564 GenerateProgramAction = [&]() { 2565 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2566 // marshalling infrastructure. 2567 2568 if (Opts.ASTDumpFormat != ADOF_Default) { 2569 StringRef Format; 2570 switch (Opts.ASTDumpFormat) { 2571 case ADOF_Default: 2572 llvm_unreachable("Default AST dump format."); 2573 case ADOF_JSON: 2574 Format = "json"; 2575 break; 2576 } 2577 2578 if (Opts.ASTDumpAll) 2579 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2580 if (Opts.ASTDumpDecls) 2581 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2582 } else { 2583 if (Opts.ASTDumpAll) 2584 GenerateArg(Args, OPT_ast_dump_all, SA); 2585 if (Opts.ASTDumpDecls) 2586 GenerateArg(Args, OPT_ast_dump, SA); 2587 } 2588 }; 2589 } 2590 2591 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2592 GenerateProgramAction = [&]() { 2593 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2594 }; 2595 } 2596 2597 GenerateProgramAction(); 2598 2599 for (const auto &PluginArgs : Opts.PluginArgs) { 2600 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2601 const char *Spelling = 2602 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2603 for (const auto &PluginArg : PluginArgs.second) 2604 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2605 } 2606 2607 for (const auto &Ext : Opts.ModuleFileExtensions) 2608 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2609 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2610 2611 if (!Opts.CodeCompletionAt.FileName.empty()) 2612 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2613 SA); 2614 2615 for (const auto &Plugin : Opts.Plugins) 2616 GenerateArg(Args, OPT_load, Plugin, SA); 2617 2618 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2619 2620 for (const auto &ModuleFile : Opts.ModuleFiles) 2621 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2622 2623 if (Opts.AuxTargetCPU) 2624 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2625 2626 if (Opts.AuxTargetFeatures) 2627 for (const auto &Feature : *Opts.AuxTargetFeatures) 2628 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2629 2630 { 2631 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2632 StringRef ModuleMap = 2633 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2634 StringRef HeaderUnit = ""; 2635 switch (Opts.DashX.getHeaderUnitKind()) { 2636 case InputKind::HeaderUnit_None: 2637 break; 2638 case InputKind::HeaderUnit_User: 2639 HeaderUnit = "-user"; 2640 break; 2641 case InputKind::HeaderUnit_System: 2642 HeaderUnit = "-system"; 2643 break; 2644 case InputKind::HeaderUnit_Abs: 2645 HeaderUnit = "-header-unit"; 2646 break; 2647 } 2648 StringRef Header = IsHeader ? "-header" : ""; 2649 2650 StringRef Lang; 2651 switch (Opts.DashX.getLanguage()) { 2652 case Language::C: 2653 Lang = "c"; 2654 break; 2655 case Language::OpenCL: 2656 Lang = "cl"; 2657 break; 2658 case Language::OpenCLCXX: 2659 Lang = "clcpp"; 2660 break; 2661 case Language::CUDA: 2662 Lang = "cuda"; 2663 break; 2664 case Language::HIP: 2665 Lang = "hip"; 2666 break; 2667 case Language::CXX: 2668 Lang = "c++"; 2669 break; 2670 case Language::ObjC: 2671 Lang = "objective-c"; 2672 break; 2673 case Language::ObjCXX: 2674 Lang = "objective-c++"; 2675 break; 2676 case Language::RenderScript: 2677 Lang = "renderscript"; 2678 break; 2679 case Language::Asm: 2680 Lang = "assembler-with-cpp"; 2681 break; 2682 case Language::Unknown: 2683 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2684 "Generating -x argument for unknown language (not precompiled)."); 2685 Lang = "ast"; 2686 break; 2687 case Language::LLVM_IR: 2688 Lang = "ir"; 2689 break; 2690 case Language::HLSL: 2691 Lang = "hlsl"; 2692 break; 2693 } 2694 2695 GenerateArg(Args, OPT_x, 2696 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2697 } 2698 2699 // OPT_INPUT has a unique class, generate it directly. 2700 for (const auto &Input : Opts.Inputs) 2701 Args.push_back(SA(Input.getFile())); 2702 } 2703 2704 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2705 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2706 unsigned NumErrorsBefore = Diags.getNumErrors(); 2707 2708 FrontendOptions &FrontendOpts = Opts; 2709 2710 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2711 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2712 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2713 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2714 MERGER, EXTRACTOR, TABLE_INDEX) \ 2715 PARSE_OPTION_WITH_MARSHALLING( \ 2716 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2717 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2718 #include "clang/Driver/Options.inc" 2719 #undef FRONTEND_OPTION_WITH_MARSHALLING 2720 2721 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2722 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2723 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2724 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2725 assert(ProgramAction && "Option specifier not in Action_Group."); 2726 2727 if (ProgramAction == frontend::ASTDump && 2728 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2729 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2730 .CaseLower("default", ADOF_Default) 2731 .CaseLower("json", ADOF_JSON) 2732 .Default(std::numeric_limits<unsigned>::max()); 2733 2734 if (Val != std::numeric_limits<unsigned>::max()) 2735 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2736 else { 2737 Diags.Report(diag::err_drv_invalid_value) 2738 << A->getAsString(Args) << A->getValue(); 2739 Opts.ASTDumpFormat = ADOF_Default; 2740 } 2741 } 2742 2743 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2744 Opts.FixItSuffix = A->getValue(); 2745 2746 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2747 StringRef ArgStr = 2748 Args.hasArg(OPT_interface_stub_version_EQ) 2749 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2750 : "ifs-v1"; 2751 if (ArgStr == "experimental-yaml-elf-v1" || 2752 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2753 ArgStr == "experimental-tapi-elf-v1") { 2754 std::string ErrorMessage = 2755 "Invalid interface stub format: " + ArgStr.str() + 2756 " is deprecated."; 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 } else if (!ArgStr.startswith("ifs-")) { 2763 std::string ErrorMessage = 2764 "Invalid interface stub format: " + ArgStr.str() + "."; 2765 Diags.Report(diag::err_drv_invalid_value) 2766 << "Must specify a valid interface stub format type, ie: " 2767 "-interface-stub-version=ifs-v1" 2768 << ErrorMessage; 2769 ProgramAction = frontend::ParseSyntaxOnly; 2770 } 2771 } 2772 2773 Opts.ProgramAction = *ProgramAction; 2774 } 2775 2776 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2777 Opts.Plugins.emplace_back(A->getValue(0)); 2778 Opts.ProgramAction = frontend::PluginAction; 2779 Opts.ActionName = A->getValue(); 2780 } 2781 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2782 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2783 2784 for (const std::string &Arg : 2785 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2786 std::string BlockName; 2787 unsigned MajorVersion; 2788 unsigned MinorVersion; 2789 bool Hashed; 2790 std::string UserInfo; 2791 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2792 MinorVersion, Hashed, UserInfo)) { 2793 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2794 2795 continue; 2796 } 2797 2798 // Add the testing module file extension. 2799 Opts.ModuleFileExtensions.push_back( 2800 std::make_shared<TestModuleFileExtension>( 2801 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2802 } 2803 2804 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2805 Opts.CodeCompletionAt = 2806 ParsedSourceLocation::FromString(A->getValue()); 2807 if (Opts.CodeCompletionAt.FileName.empty()) 2808 Diags.Report(diag::err_drv_invalid_value) 2809 << A->getAsString(Args) << A->getValue(); 2810 } 2811 2812 Opts.Plugins = Args.getAllArgValues(OPT_load); 2813 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2814 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2815 // Only the -fmodule-file=<file> form. 2816 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2817 StringRef Val = A->getValue(); 2818 if (!Val.contains('=')) 2819 Opts.ModuleFiles.push_back(std::string(Val)); 2820 } 2821 2822 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2823 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2824 << "-emit-module"; 2825 2826 if (Args.hasArg(OPT_aux_target_cpu)) 2827 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2828 if (Args.hasArg(OPT_aux_target_feature)) 2829 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2830 2831 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2832 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2833 Diags.Report(diag::err_drv_argument_not_allowed_with) 2834 << "ARC migration" << "ObjC migration"; 2835 } 2836 2837 InputKind DashX(Language::Unknown); 2838 if (const Arg *A = Args.getLastArg(OPT_x)) { 2839 StringRef XValue = A->getValue(); 2840 2841 // Parse suffixes: 2842 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2843 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2844 bool Preprocessed = XValue.consume_back("-cpp-output"); 2845 bool ModuleMap = XValue.consume_back("-module-map"); 2846 // Detect and consume the header indicator. 2847 bool IsHeader = 2848 XValue != "precompiled-header" && XValue.consume_back("-header"); 2849 2850 // If we have c++-{user,system}-header, that indicates a header unit input 2851 // likewise, if the user put -fmodule-header together with a header with an 2852 // absolute path (header-unit-header). 2853 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2854 if (IsHeader || Preprocessed) { 2855 if (XValue.consume_back("-header-unit")) 2856 HUK = InputKind::HeaderUnit_Abs; 2857 else if (XValue.consume_back("-system")) 2858 HUK = InputKind::HeaderUnit_System; 2859 else if (XValue.consume_back("-user")) 2860 HUK = InputKind::HeaderUnit_User; 2861 } 2862 2863 // The value set by this processing is an un-preprocessed source which is 2864 // not intended to be a module map or header unit. 2865 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2866 HUK == InputKind::HeaderUnit_None; 2867 2868 // Principal languages. 2869 DashX = llvm::StringSwitch<InputKind>(XValue) 2870 .Case("c", Language::C) 2871 .Case("cl", Language::OpenCL) 2872 .Case("clcpp", Language::OpenCLCXX) 2873 .Case("cuda", Language::CUDA) 2874 .Case("hip", Language::HIP) 2875 .Case("c++", Language::CXX) 2876 .Case("objective-c", Language::ObjC) 2877 .Case("objective-c++", Language::ObjCXX) 2878 .Case("renderscript", Language::RenderScript) 2879 .Case("hlsl", Language::HLSL) 2880 .Default(Language::Unknown); 2881 2882 // "objc[++]-cpp-output" is an acceptable synonym for 2883 // "objective-c[++]-cpp-output". 2884 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2885 HUK == InputKind::HeaderUnit_None) 2886 DashX = llvm::StringSwitch<InputKind>(XValue) 2887 .Case("objc", Language::ObjC) 2888 .Case("objc++", Language::ObjCXX) 2889 .Default(Language::Unknown); 2890 2891 // Some special cases cannot be combined with suffixes. 2892 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2893 HUK == InputKind::HeaderUnit_None) 2894 DashX = llvm::StringSwitch<InputKind>(XValue) 2895 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2896 .Case("assembler-with-cpp", Language::Asm) 2897 .Cases("ast", "pcm", "precompiled-header", 2898 InputKind(Language::Unknown, InputKind::Precompiled)) 2899 .Case("ir", Language::LLVM_IR) 2900 .Default(Language::Unknown); 2901 2902 if (DashX.isUnknown()) 2903 Diags.Report(diag::err_drv_invalid_value) 2904 << A->getAsString(Args) << A->getValue(); 2905 2906 if (Preprocessed) 2907 DashX = DashX.getPreprocessed(); 2908 // A regular header is considered mutually exclusive with a header unit. 2909 if (HUK != InputKind::HeaderUnit_None) { 2910 DashX = DashX.withHeaderUnit(HUK); 2911 IsHeaderFile = true; 2912 } else if (IsHeaderFile) 2913 DashX = DashX.getHeader(); 2914 if (ModuleMap) 2915 DashX = DashX.withFormat(InputKind::ModuleMap); 2916 } 2917 2918 // '-' is the default input if none is given. 2919 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2920 Opts.Inputs.clear(); 2921 if (Inputs.empty()) 2922 Inputs.push_back("-"); 2923 2924 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2925 Inputs.size() > 1) 2926 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2927 2928 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2929 InputKind IK = DashX; 2930 if (IK.isUnknown()) { 2931 IK = FrontendOptions::getInputKindForExtension( 2932 StringRef(Inputs[i]).rsplit('.').second); 2933 // FIXME: Warn on this? 2934 if (IK.isUnknown()) 2935 IK = Language::C; 2936 // FIXME: Remove this hack. 2937 if (i == 0) 2938 DashX = IK; 2939 } 2940 2941 bool IsSystem = false; 2942 2943 // The -emit-module action implicitly takes a module map. 2944 if (Opts.ProgramAction == frontend::GenerateModule && 2945 IK.getFormat() == InputKind::Source) { 2946 IK = IK.withFormat(InputKind::ModuleMap); 2947 IsSystem = Opts.IsSystemModule; 2948 } 2949 2950 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2951 } 2952 2953 Opts.DashX = DashX; 2954 2955 return Diags.getNumErrors() == NumErrorsBefore; 2956 } 2957 2958 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2959 void *MainAddr) { 2960 std::string ClangExecutable = 2961 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2962 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2963 } 2964 2965 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2966 SmallVectorImpl<const char *> &Args, 2967 CompilerInvocation::StringAllocator SA) { 2968 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2969 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2970 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2971 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2972 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2973 MERGER, EXTRACTOR, TABLE_INDEX) \ 2974 GENERATE_OPTION_WITH_MARSHALLING( \ 2975 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2976 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2977 #include "clang/Driver/Options.inc" 2978 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2979 2980 if (Opts.UseLibcxx) 2981 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2982 2983 if (!Opts.ModuleCachePath.empty()) 2984 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2985 2986 for (const auto &File : Opts.PrebuiltModuleFiles) 2987 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2988 2989 for (const auto &Path : Opts.PrebuiltModulePaths) 2990 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2991 2992 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2993 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2994 2995 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2996 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2997 std::optional<bool> IsFramework, 2998 std::optional<bool> IgnoreSysRoot) { 2999 return llvm::is_contained(Groups, Entry.Group) && 3000 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3001 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3002 }; 3003 3004 auto It = Opts.UserEntries.begin(); 3005 auto End = Opts.UserEntries.end(); 3006 3007 // Add -I..., -F..., and -index-header-map options in order. 3008 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3009 std::nullopt, true); 3010 ++It) { 3011 OptSpecifier Opt = [It, Matches]() { 3012 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3013 return OPT_F; 3014 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3015 return OPT_I; 3016 if (Matches(*It, frontend::Angled, true, true)) 3017 return OPT_F; 3018 if (Matches(*It, frontend::Angled, false, true)) 3019 return OPT_I; 3020 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3021 }(); 3022 3023 if (It->Group == frontend::IndexHeaderMap) 3024 GenerateArg(Args, OPT_index_header_map, SA); 3025 GenerateArg(Args, Opt, It->Path, SA); 3026 }; 3027 3028 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3029 // have already been generated as "-I[xx]yy". If that's the case, their 3030 // position on command line was such that this has no semantic impact on 3031 // include paths. 3032 for (; It < End && 3033 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3034 ++It) { 3035 OptSpecifier Opt = 3036 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3037 GenerateArg(Args, Opt, It->Path, SA); 3038 } 3039 3040 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3041 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3042 // command line was such that this has no semantic impact on include paths. 3043 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3044 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3045 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3046 GenerateArg(Args, OPT_iquote, It->Path, SA); 3047 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3048 ++It) 3049 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3050 It->Path, SA); 3051 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3052 GenerateArg(Args, OPT_iframework, It->Path, SA); 3053 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3054 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3055 3056 // Add the paths for the various language specific isystem flags. 3057 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3058 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3059 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3060 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3061 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3062 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3063 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3064 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3065 3066 // Add the internal paths from a driver that detects standard include paths. 3067 // Note: Some paths that came from "-internal-isystem" arguments may have 3068 // already been generated as "-isystem". If that's the case, their position on 3069 // command line was such that this has no semantic impact on include paths. 3070 for (; It < End && 3071 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3072 ++It) { 3073 OptSpecifier Opt = It->Group == frontend::System 3074 ? OPT_internal_isystem 3075 : OPT_internal_externc_isystem; 3076 GenerateArg(Args, Opt, It->Path, SA); 3077 } 3078 3079 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3080 3081 // Add the path prefixes which are implicitly treated as being system headers. 3082 for (const auto &P : Opts.SystemHeaderPrefixes) { 3083 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3084 : OPT_no_system_header_prefix; 3085 GenerateArg(Args, Opt, P.Prefix, SA); 3086 } 3087 3088 for (const std::string &F : Opts.VFSOverlayFiles) 3089 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3090 } 3091 3092 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3093 DiagnosticsEngine &Diags, 3094 const std::string &WorkingDir) { 3095 unsigned NumErrorsBefore = Diags.getNumErrors(); 3096 3097 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3098 3099 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3100 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3101 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3102 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3103 MERGER, EXTRACTOR, TABLE_INDEX) \ 3104 PARSE_OPTION_WITH_MARSHALLING( \ 3105 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3106 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3107 #include "clang/Driver/Options.inc" 3108 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3109 3110 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3111 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3112 3113 // Canonicalize -fmodules-cache-path before storing it. 3114 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3115 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3116 if (WorkingDir.empty()) 3117 llvm::sys::fs::make_absolute(P); 3118 else 3119 llvm::sys::fs::make_absolute(WorkingDir, P); 3120 } 3121 llvm::sys::path::remove_dots(P); 3122 Opts.ModuleCachePath = std::string(P.str()); 3123 3124 // Only the -fmodule-file=<name>=<file> form. 3125 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3126 StringRef Val = A->getValue(); 3127 if (Val.contains('=')) { 3128 auto Split = Val.split('='); 3129 Opts.PrebuiltModuleFiles.insert( 3130 {std::string(Split.first), std::string(Split.second)}); 3131 } 3132 } 3133 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3134 Opts.AddPrebuiltModulePath(A->getValue()); 3135 3136 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3137 StringRef MacroDef = A->getValue(); 3138 Opts.ModulesIgnoreMacros.insert( 3139 llvm::CachedHashString(MacroDef.split('=').first)); 3140 } 3141 3142 // Add -I..., -F..., and -index-header-map options in order. 3143 bool IsIndexHeaderMap = false; 3144 bool IsSysrootSpecified = 3145 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3146 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3147 if (A->getOption().matches(OPT_index_header_map)) { 3148 // -index-header-map applies to the next -I or -F. 3149 IsIndexHeaderMap = true; 3150 continue; 3151 } 3152 3153 frontend::IncludeDirGroup Group = 3154 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3155 3156 bool IsFramework = A->getOption().matches(OPT_F); 3157 std::string Path = A->getValue(); 3158 3159 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3160 SmallString<32> Buffer; 3161 llvm::sys::path::append(Buffer, Opts.Sysroot, 3162 llvm::StringRef(A->getValue()).substr(1)); 3163 Path = std::string(Buffer.str()); 3164 } 3165 3166 Opts.AddPath(Path, Group, IsFramework, 3167 /*IgnoreSysroot*/ true); 3168 IsIndexHeaderMap = false; 3169 } 3170 3171 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3172 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3173 for (const auto *A : 3174 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3175 if (A->getOption().matches(OPT_iprefix)) 3176 Prefix = A->getValue(); 3177 else if (A->getOption().matches(OPT_iwithprefix)) 3178 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3179 else 3180 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3181 } 3182 3183 for (const auto *A : Args.filtered(OPT_idirafter)) 3184 Opts.AddPath(A->getValue(), frontend::After, false, true); 3185 for (const auto *A : Args.filtered(OPT_iquote)) 3186 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3187 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3188 Opts.AddPath(A->getValue(), frontend::System, false, 3189 !A->getOption().matches(OPT_iwithsysroot)); 3190 for (const auto *A : Args.filtered(OPT_iframework)) 3191 Opts.AddPath(A->getValue(), frontend::System, true, true); 3192 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3193 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3194 /*IgnoreSysRoot=*/false); 3195 3196 // Add the paths for the various language specific isystem flags. 3197 for (const auto *A : Args.filtered(OPT_c_isystem)) 3198 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3199 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3200 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3201 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3202 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3203 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3204 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3205 3206 // Add the internal paths from a driver that detects standard include paths. 3207 for (const auto *A : 3208 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3209 frontend::IncludeDirGroup Group = frontend::System; 3210 if (A->getOption().matches(OPT_internal_externc_isystem)) 3211 Group = frontend::ExternCSystem; 3212 Opts.AddPath(A->getValue(), Group, false, true); 3213 } 3214 3215 // Add the path prefixes which are implicitly treated as being system headers. 3216 for (const auto *A : 3217 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3218 Opts.AddSystemHeaderPrefix( 3219 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3220 3221 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3222 Opts.AddVFSOverlayFile(A->getValue()); 3223 3224 return Diags.getNumErrors() == NumErrorsBefore; 3225 } 3226 3227 /// Check if input file kind and language standard are compatible. 3228 static bool IsInputCompatibleWithStandard(InputKind IK, 3229 const LangStandard &S) { 3230 switch (IK.getLanguage()) { 3231 case Language::Unknown: 3232 case Language::LLVM_IR: 3233 llvm_unreachable("should not parse language flags for this input"); 3234 3235 case Language::C: 3236 case Language::ObjC: 3237 case Language::RenderScript: 3238 return S.getLanguage() == Language::C; 3239 3240 case Language::OpenCL: 3241 return S.getLanguage() == Language::OpenCL || 3242 S.getLanguage() == Language::OpenCLCXX; 3243 3244 case Language::OpenCLCXX: 3245 return S.getLanguage() == Language::OpenCLCXX; 3246 3247 case Language::CXX: 3248 case Language::ObjCXX: 3249 return S.getLanguage() == Language::CXX; 3250 3251 case Language::CUDA: 3252 // FIXME: What -std= values should be permitted for CUDA compilations? 3253 return S.getLanguage() == Language::CUDA || 3254 S.getLanguage() == Language::CXX; 3255 3256 case Language::HIP: 3257 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3258 3259 case Language::Asm: 3260 // Accept (and ignore) all -std= values. 3261 // FIXME: The -std= value is not ignored; it affects the tokenization 3262 // and preprocessing rules if we're preprocessing this asm input. 3263 return true; 3264 3265 case Language::HLSL: 3266 return S.getLanguage() == Language::HLSL; 3267 } 3268 3269 llvm_unreachable("unexpected input language"); 3270 } 3271 3272 /// Get language name for given input kind. 3273 static StringRef GetInputKindName(InputKind IK) { 3274 switch (IK.getLanguage()) { 3275 case Language::C: 3276 return "C"; 3277 case Language::ObjC: 3278 return "Objective-C"; 3279 case Language::CXX: 3280 return "C++"; 3281 case Language::ObjCXX: 3282 return "Objective-C++"; 3283 case Language::OpenCL: 3284 return "OpenCL"; 3285 case Language::OpenCLCXX: 3286 return "C++ for OpenCL"; 3287 case Language::CUDA: 3288 return "CUDA"; 3289 case Language::RenderScript: 3290 return "RenderScript"; 3291 case Language::HIP: 3292 return "HIP"; 3293 3294 case Language::Asm: 3295 return "Asm"; 3296 case Language::LLVM_IR: 3297 return "LLVM IR"; 3298 3299 case Language::HLSL: 3300 return "HLSL"; 3301 3302 case Language::Unknown: 3303 break; 3304 } 3305 llvm_unreachable("unknown input language"); 3306 } 3307 3308 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3309 SmallVectorImpl<const char *> &Args, 3310 StringAllocator SA, 3311 const llvm::Triple &T, InputKind IK) { 3312 if (IK.getFormat() == InputKind::Precompiled || 3313 IK.getLanguage() == Language::LLVM_IR) { 3314 if (Opts.ObjCAutoRefCount) 3315 GenerateArg(Args, OPT_fobjc_arc, SA); 3316 if (Opts.PICLevel != 0) 3317 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3318 if (Opts.PIE) 3319 GenerateArg(Args, OPT_pic_is_pie, SA); 3320 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3321 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3322 3323 return; 3324 } 3325 3326 OptSpecifier StdOpt; 3327 switch (Opts.LangStd) { 3328 case LangStandard::lang_opencl10: 3329 case LangStandard::lang_opencl11: 3330 case LangStandard::lang_opencl12: 3331 case LangStandard::lang_opencl20: 3332 case LangStandard::lang_opencl30: 3333 case LangStandard::lang_openclcpp10: 3334 case LangStandard::lang_openclcpp2021: 3335 StdOpt = OPT_cl_std_EQ; 3336 break; 3337 default: 3338 StdOpt = OPT_std_EQ; 3339 break; 3340 } 3341 3342 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3343 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3344 3345 if (Opts.IncludeDefaultHeader) 3346 GenerateArg(Args, OPT_finclude_default_header, SA); 3347 if (Opts.DeclareOpenCLBuiltins) 3348 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3349 3350 const LangOptions *LangOpts = &Opts; 3351 3352 #define LANG_OPTION_WITH_MARSHALLING( \ 3353 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3354 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3355 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3356 MERGER, EXTRACTOR, TABLE_INDEX) \ 3357 GENERATE_OPTION_WITH_MARSHALLING( \ 3358 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3359 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3360 #include "clang/Driver/Options.inc" 3361 #undef LANG_OPTION_WITH_MARSHALLING 3362 3363 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3364 3365 if (Opts.ObjC) { 3366 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3367 3368 if (Opts.GC == LangOptions::GCOnly) 3369 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3370 else if (Opts.GC == LangOptions::HybridGC) 3371 GenerateArg(Args, OPT_fobjc_gc, SA); 3372 else if (Opts.ObjCAutoRefCount == 1) 3373 GenerateArg(Args, OPT_fobjc_arc, SA); 3374 3375 if (Opts.ObjCWeakRuntime) 3376 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3377 3378 if (Opts.ObjCWeak) 3379 GenerateArg(Args, OPT_fobjc_weak, SA); 3380 3381 if (Opts.ObjCSubscriptingLegacyRuntime) 3382 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3383 } 3384 3385 if (Opts.GNUCVersion != 0) { 3386 unsigned Major = Opts.GNUCVersion / 100 / 100; 3387 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3388 unsigned Patch = Opts.GNUCVersion % 100; 3389 GenerateArg(Args, OPT_fgnuc_version_EQ, 3390 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3391 } 3392 3393 if (Opts.IgnoreXCOFFVisibility) 3394 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3395 3396 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3397 GenerateArg(Args, OPT_ftrapv, SA); 3398 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3399 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3400 GenerateArg(Args, OPT_fwrapv, SA); 3401 } 3402 3403 if (Opts.MSCompatibilityVersion != 0) { 3404 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3405 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3406 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3407 GenerateArg(Args, OPT_fms_compatibility_version, 3408 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3409 } 3410 3411 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3412 if (!Opts.Trigraphs) 3413 GenerateArg(Args, OPT_fno_trigraphs, SA); 3414 } else { 3415 if (Opts.Trigraphs) 3416 GenerateArg(Args, OPT_ftrigraphs, SA); 3417 } 3418 3419 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3420 GenerateArg(Args, OPT_fblocks, SA); 3421 3422 if (Opts.ConvergentFunctions && 3423 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3424 GenerateArg(Args, OPT_fconvergent_functions, SA); 3425 3426 if (Opts.NoBuiltin && !Opts.Freestanding) 3427 GenerateArg(Args, OPT_fno_builtin, SA); 3428 3429 if (!Opts.NoBuiltin) 3430 for (const auto &Func : Opts.NoBuiltinFuncs) 3431 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3432 3433 if (Opts.LongDoubleSize == 128) 3434 GenerateArg(Args, OPT_mlong_double_128, SA); 3435 else if (Opts.LongDoubleSize == 64) 3436 GenerateArg(Args, OPT_mlong_double_64, SA); 3437 else if (Opts.LongDoubleSize == 80) 3438 GenerateArg(Args, OPT_mlong_double_80, SA); 3439 3440 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3441 3442 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3443 // '-fopenmp-targets='. 3444 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3445 GenerateArg(Args, OPT_fopenmp, SA); 3446 3447 if (Opts.OpenMP != 50) 3448 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3449 3450 if (!Opts.OpenMPUseTLS) 3451 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3452 3453 if (Opts.OpenMPIsDevice) 3454 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3455 3456 if (Opts.OpenMPIRBuilder) 3457 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3458 } 3459 3460 if (Opts.OpenMPSimd) { 3461 GenerateArg(Args, OPT_fopenmp_simd, SA); 3462 3463 if (Opts.OpenMP != 50) 3464 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3465 } 3466 3467 if (Opts.OpenMPThreadSubscription) 3468 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3469 3470 if (Opts.OpenMPTeamSubscription) 3471 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3472 3473 if (Opts.OpenMPTargetDebug != 0) 3474 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3475 Twine(Opts.OpenMPTargetDebug), SA); 3476 3477 if (Opts.OpenMPCUDANumSMs != 0) 3478 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3479 Twine(Opts.OpenMPCUDANumSMs), SA); 3480 3481 if (Opts.OpenMPCUDABlocksPerSM != 0) 3482 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3483 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3484 3485 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3486 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3487 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3488 3489 if (!Opts.OMPTargetTriples.empty()) { 3490 std::string Targets; 3491 llvm::raw_string_ostream OS(Targets); 3492 llvm::interleave( 3493 Opts.OMPTargetTriples, OS, 3494 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3495 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3496 } 3497 3498 if (!Opts.OMPHostIRFile.empty()) 3499 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3500 3501 if (Opts.OpenMPCUDAMode) 3502 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3503 3504 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3505 // generated from CodeGenOptions. 3506 3507 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3508 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3509 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3510 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3511 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3512 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3513 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3514 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3515 3516 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3517 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3518 3519 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3520 for (const std::string &F : Opts.NoSanitizeFiles) 3521 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3522 3523 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3524 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3525 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3526 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3527 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3528 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3529 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3530 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3531 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3532 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3533 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3534 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3535 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3536 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3537 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3538 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3539 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver15) 3540 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "15.0", SA); 3541 3542 if (Opts.getSignReturnAddressScope() == 3543 LangOptions::SignReturnAddressScopeKind::All) 3544 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3545 else if (Opts.getSignReturnAddressScope() == 3546 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3547 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3548 3549 if (Opts.getSignReturnAddressKey() == 3550 LangOptions::SignReturnAddressKeyKind::BKey) 3551 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3552 3553 if (Opts.CXXABI) 3554 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3555 SA); 3556 3557 if (Opts.RelativeCXXABIVTables) 3558 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3559 else 3560 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3561 3562 if (Opts.UseTargetPathSeparator) 3563 GenerateArg(Args, OPT_ffile_reproducible, SA); 3564 else 3565 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3566 3567 for (const auto &MP : Opts.MacroPrefixMap) 3568 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3569 3570 if (!Opts.RandstructSeed.empty()) 3571 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3572 } 3573 3574 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3575 InputKind IK, const llvm::Triple &T, 3576 std::vector<std::string> &Includes, 3577 DiagnosticsEngine &Diags) { 3578 unsigned NumErrorsBefore = Diags.getNumErrors(); 3579 3580 if (IK.getFormat() == InputKind::Precompiled || 3581 IK.getLanguage() == Language::LLVM_IR) { 3582 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3583 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3584 // what the input type is. 3585 if (Args.hasArg(OPT_fobjc_arc)) 3586 Opts.ObjCAutoRefCount = 1; 3587 // PICLevel and PIELevel are needed during code generation and this should 3588 // be set regardless of the input type. 3589 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3590 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3591 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3592 Diags, Opts.Sanitize); 3593 3594 return Diags.getNumErrors() == NumErrorsBefore; 3595 } 3596 3597 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3598 // FIXME: Should we really be parsing this for an Language::Asm input? 3599 3600 // FIXME: Cleanup per-file based stuff. 3601 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3602 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3603 LangStd = LangStandard::getLangKind(A->getValue()); 3604 if (LangStd == LangStandard::lang_unspecified) { 3605 Diags.Report(diag::err_drv_invalid_value) 3606 << A->getAsString(Args) << A->getValue(); 3607 // Report supported standards with short description. 3608 for (unsigned KindValue = 0; 3609 KindValue != LangStandard::lang_unspecified; 3610 ++KindValue) { 3611 const LangStandard &Std = LangStandard::getLangStandardForKind( 3612 static_cast<LangStandard::Kind>(KindValue)); 3613 if (IsInputCompatibleWithStandard(IK, Std)) { 3614 auto Diag = Diags.Report(diag::note_drv_use_standard); 3615 Diag << Std.getName() << Std.getDescription(); 3616 unsigned NumAliases = 0; 3617 #define LANGSTANDARD(id, name, lang, desc, features) 3618 #define LANGSTANDARD_ALIAS(id, alias) \ 3619 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3620 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3621 #include "clang/Basic/LangStandards.def" 3622 Diag << NumAliases; 3623 #define LANGSTANDARD(id, name, lang, desc, features) 3624 #define LANGSTANDARD_ALIAS(id, alias) \ 3625 if (KindValue == LangStandard::lang_##id) Diag << alias; 3626 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3627 #include "clang/Basic/LangStandards.def" 3628 } 3629 } 3630 } else { 3631 // Valid standard, check to make sure language and standard are 3632 // compatible. 3633 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3634 if (!IsInputCompatibleWithStandard(IK, Std)) { 3635 Diags.Report(diag::err_drv_argument_not_allowed_with) 3636 << A->getAsString(Args) << GetInputKindName(IK); 3637 } 3638 } 3639 } 3640 3641 // -cl-std only applies for OpenCL language standards. 3642 // Override the -std option in this case. 3643 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3644 LangStandard::Kind OpenCLLangStd 3645 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3646 .Cases("cl", "CL", LangStandard::lang_opencl10) 3647 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3648 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3649 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3650 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3651 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3652 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3653 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3654 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3655 .Default(LangStandard::lang_unspecified); 3656 3657 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3658 Diags.Report(diag::err_drv_invalid_value) 3659 << A->getAsString(Args) << A->getValue(); 3660 } 3661 else 3662 LangStd = OpenCLLangStd; 3663 } 3664 3665 // These need to be parsed now. They are used to set OpenCL defaults. 3666 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3667 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3668 3669 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3670 3671 // The key paths of codegen options defined in Options.td start with 3672 // "LangOpts->". Let's provide the expected variable name and type. 3673 LangOptions *LangOpts = &Opts; 3674 3675 #define LANG_OPTION_WITH_MARSHALLING( \ 3676 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3677 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3678 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3679 MERGER, EXTRACTOR, TABLE_INDEX) \ 3680 PARSE_OPTION_WITH_MARSHALLING( \ 3681 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3682 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3683 #include "clang/Driver/Options.inc" 3684 #undef LANG_OPTION_WITH_MARSHALLING 3685 3686 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3687 StringRef Name = A->getValue(); 3688 if (Name == "full" || Name == "branch") { 3689 Opts.CFProtectionBranch = 1; 3690 } 3691 } 3692 3693 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3694 !Args.hasArg(OPT_sycl_std_EQ)) { 3695 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3696 // provide -sycl-std=, we want to default it to whatever the default SYCL 3697 // version is. I could not find a way to express this with the options 3698 // tablegen because we still want this value to be SYCL_None when the user 3699 // is not in device or host mode. 3700 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3701 } 3702 3703 if (Opts.ObjC) { 3704 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3705 StringRef value = arg->getValue(); 3706 if (Opts.ObjCRuntime.tryParse(value)) 3707 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3708 } 3709 3710 if (Args.hasArg(OPT_fobjc_gc_only)) 3711 Opts.setGC(LangOptions::GCOnly); 3712 else if (Args.hasArg(OPT_fobjc_gc)) 3713 Opts.setGC(LangOptions::HybridGC); 3714 else if (Args.hasArg(OPT_fobjc_arc)) { 3715 Opts.ObjCAutoRefCount = 1; 3716 if (!Opts.ObjCRuntime.allowsARC()) 3717 Diags.Report(diag::err_arc_unsupported_on_runtime); 3718 } 3719 3720 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3721 // whether the feature is actually enabled. This is predominantly 3722 // determined by -fobjc-runtime, but we allow it to be overridden 3723 // from the command line for testing purposes. 3724 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3725 Opts.ObjCWeakRuntime = 1; 3726 else 3727 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3728 3729 // ObjCWeak determines whether __weak is actually enabled. 3730 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3731 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3732 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3733 assert(!Opts.ObjCWeak); 3734 } else if (Opts.getGC() != LangOptions::NonGC) { 3735 Diags.Report(diag::err_objc_weak_with_gc); 3736 } else if (!Opts.ObjCWeakRuntime) { 3737 Diags.Report(diag::err_objc_weak_unsupported); 3738 } else { 3739 Opts.ObjCWeak = 1; 3740 } 3741 } else if (Opts.ObjCAutoRefCount) { 3742 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3743 } 3744 3745 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3746 Opts.ObjCSubscriptingLegacyRuntime = 3747 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3748 } 3749 3750 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3751 // Check that the version has 1 to 3 components and the minor and patch 3752 // versions fit in two decimal digits. 3753 VersionTuple GNUCVer; 3754 bool Invalid = GNUCVer.tryParse(A->getValue()); 3755 unsigned Major = GNUCVer.getMajor(); 3756 unsigned Minor = GNUCVer.getMinor().value_or(0); 3757 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3758 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3759 Diags.Report(diag::err_drv_invalid_value) 3760 << A->getAsString(Args) << A->getValue(); 3761 } 3762 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3763 } 3764 3765 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3766 Opts.IgnoreXCOFFVisibility = 1; 3767 3768 if (Args.hasArg(OPT_ftrapv)) { 3769 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3770 // Set the handler, if one is specified. 3771 Opts.OverflowHandler = 3772 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3773 } 3774 else if (Args.hasArg(OPT_fwrapv)) 3775 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3776 3777 Opts.MSCompatibilityVersion = 0; 3778 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3779 VersionTuple VT; 3780 if (VT.tryParse(A->getValue())) 3781 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3782 << A->getValue(); 3783 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3784 VT.getMinor().value_or(0) * 100000 + 3785 VT.getSubminor().value_or(0); 3786 } 3787 3788 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3789 // is specified, or -std is set to a conforming mode. 3790 // Trigraphs are disabled by default in c++1z onwards. 3791 // For z/OS, trigraphs are enabled by default (without regard to the above). 3792 Opts.Trigraphs = 3793 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3794 Opts.Trigraphs = 3795 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3796 3797 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3798 && Opts.OpenCLVersion == 200); 3799 3800 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3801 Opts.SYCLIsDevice || 3802 Args.hasArg(OPT_fconvergent_functions); 3803 3804 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3805 if (!Opts.NoBuiltin) 3806 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3807 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3808 if (A->getOption().matches(options::OPT_mlong_double_64)) 3809 Opts.LongDoubleSize = 64; 3810 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3811 Opts.LongDoubleSize = 80; 3812 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3813 Opts.LongDoubleSize = 128; 3814 else 3815 Opts.LongDoubleSize = 0; 3816 } 3817 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 3818 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3819 3820 llvm::sort(Opts.ModuleFeatures); 3821 3822 // -mrtd option 3823 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3824 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3825 Diags.Report(diag::err_drv_argument_not_allowed_with) 3826 << A->getSpelling() << "-fdefault-calling-conv"; 3827 else { 3828 if (T.getArch() != llvm::Triple::x86) 3829 Diags.Report(diag::err_drv_argument_not_allowed_with) 3830 << A->getSpelling() << T.getTriple(); 3831 else 3832 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3833 } 3834 } 3835 3836 // Check if -fopenmp is specified and set default version to 5.0. 3837 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3838 // Check if -fopenmp-simd is specified. 3839 bool IsSimdSpecified = 3840 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3841 /*Default=*/false); 3842 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3843 Opts.OpenMPUseTLS = 3844 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3845 Opts.OpenMPIsDevice = 3846 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3847 Opts.OpenMPIRBuilder = 3848 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3849 bool IsTargetSpecified = 3850 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3851 3852 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3853 3854 if (Opts.OpenMP || Opts.OpenMPSimd) { 3855 if (int Version = getLastArgIntValue( 3856 Args, OPT_fopenmp_version_EQ, 3857 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3858 Opts.OpenMP = Version; 3859 // Provide diagnostic when a given target is not expected to be an OpenMP 3860 // device or host. 3861 if (!Opts.OpenMPIsDevice) { 3862 switch (T.getArch()) { 3863 default: 3864 break; 3865 // Add unsupported host targets here: 3866 case llvm::Triple::nvptx: 3867 case llvm::Triple::nvptx64: 3868 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3869 break; 3870 } 3871 } 3872 } 3873 3874 // Set the flag to prevent the implementation from emitting device exception 3875 // handling code for those requiring so. 3876 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3877 Opts.OpenCLCPlusPlus) { 3878 3879 Opts.Exceptions = 0; 3880 Opts.CXXExceptions = 0; 3881 } 3882 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3883 Opts.OpenMPCUDANumSMs = 3884 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3885 Opts.OpenMPCUDANumSMs, Diags); 3886 Opts.OpenMPCUDABlocksPerSM = 3887 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3888 Opts.OpenMPCUDABlocksPerSM, Diags); 3889 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3890 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3891 Opts.OpenMPCUDAReductionBufNum, Diags); 3892 } 3893 3894 // Set the value of the debugging flag used in the new offloading device RTL. 3895 // Set either by a specific value or to a default if not specified. 3896 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3897 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3898 Opts.OpenMPTargetDebug = getLastArgIntValue( 3899 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3900 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3901 Opts.OpenMPTargetDebug = 1; 3902 } 3903 3904 if (Opts.OpenMPIsDevice) { 3905 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3906 Opts.OpenMPTeamSubscription = true; 3907 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3908 Opts.OpenMPThreadSubscription = true; 3909 } 3910 3911 // Get the OpenMP target triples if any. 3912 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3913 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3914 auto getArchPtrSize = [](const llvm::Triple &T) { 3915 if (T.isArch16Bit()) 3916 return Arch16Bit; 3917 if (T.isArch32Bit()) 3918 return Arch32Bit; 3919 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3920 return Arch64Bit; 3921 }; 3922 3923 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3924 llvm::Triple TT(A->getValue(i)); 3925 3926 if (TT.getArch() == llvm::Triple::UnknownArch || 3927 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3928 TT.getArch() == llvm::Triple::nvptx || 3929 TT.getArch() == llvm::Triple::nvptx64 || 3930 TT.getArch() == llvm::Triple::amdgcn || 3931 TT.getArch() == llvm::Triple::x86 || 3932 TT.getArch() == llvm::Triple::x86_64)) 3933 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3934 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3935 Diags.Report(diag::err_drv_incompatible_omp_arch) 3936 << A->getValue(i) << T.str(); 3937 else 3938 Opts.OMPTargetTriples.push_back(TT); 3939 } 3940 } 3941 3942 // Get OpenMP host file path if any and report if a non existent file is 3943 // found 3944 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3945 Opts.OMPHostIRFile = A->getValue(); 3946 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3947 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3948 << Opts.OMPHostIRFile; 3949 } 3950 3951 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3952 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3953 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3954 3955 // FIXME: Eliminate this dependency. 3956 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3957 OptSize = getOptimizationLevelSize(Args); 3958 Opts.Optimize = Opt != 0; 3959 Opts.OptimizeSize = OptSize != 0; 3960 3961 // This is the __NO_INLINE__ define, which just depends on things like the 3962 // optimization level and -fno-inline, not actually whether the backend has 3963 // inlining enabled. 3964 Opts.NoInlineDefine = !Opts.Optimize; 3965 if (Arg *InlineArg = Args.getLastArg( 3966 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3967 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3968 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3969 Opts.NoInlineDefine = true; 3970 3971 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3972 StringRef Val = A->getValue(); 3973 if (Val == "fast") 3974 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3975 else if (Val == "on") 3976 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3977 else if (Val == "off") 3978 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3979 else if (Val == "fast-honor-pragmas") 3980 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3981 else 3982 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3983 } 3984 3985 // Parse -fsanitize= arguments. 3986 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3987 Diags, Opts.Sanitize); 3988 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3989 std::vector<std::string> systemIgnorelists = 3990 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3991 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3992 systemIgnorelists.begin(), 3993 systemIgnorelists.end()); 3994 3995 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3996 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3997 3998 StringRef Ver = A->getValue(); 3999 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4000 unsigned Major, Minor = 0; 4001 4002 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4003 // y or y.0 (4 <= y <= current version). 4004 if (!VerParts.first.startswith("0") && 4005 !VerParts.first.getAsInteger(10, Major) && 4006 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4007 (Major == 3 ? VerParts.second.size() == 1 && 4008 !VerParts.second.getAsInteger(10, Minor) 4009 : VerParts.first.size() == Ver.size() || 4010 VerParts.second == "0")) { 4011 // Got a valid version number. 4012 if (Major == 3 && Minor <= 8) 4013 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4014 else if (Major <= 4) 4015 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4016 else if (Major <= 6) 4017 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4018 else if (Major <= 7) 4019 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4020 else if (Major <= 9) 4021 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4022 else if (Major <= 11) 4023 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4024 else if (Major <= 12) 4025 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4026 else if (Major <= 14) 4027 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4028 else if (Major <= 15) 4029 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4030 } else if (Ver != "latest") { 4031 Diags.Report(diag::err_drv_invalid_value) 4032 << A->getAsString(Args) << A->getValue(); 4033 } 4034 } 4035 4036 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4037 StringRef SignScope = A->getValue(); 4038 4039 if (SignScope.equals_insensitive("none")) 4040 Opts.setSignReturnAddressScope( 4041 LangOptions::SignReturnAddressScopeKind::None); 4042 else if (SignScope.equals_insensitive("all")) 4043 Opts.setSignReturnAddressScope( 4044 LangOptions::SignReturnAddressScopeKind::All); 4045 else if (SignScope.equals_insensitive("non-leaf")) 4046 Opts.setSignReturnAddressScope( 4047 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4048 else 4049 Diags.Report(diag::err_drv_invalid_value) 4050 << A->getAsString(Args) << SignScope; 4051 4052 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4053 StringRef SignKey = A->getValue(); 4054 if (!SignScope.empty() && !SignKey.empty()) { 4055 if (SignKey.equals_insensitive("a_key")) 4056 Opts.setSignReturnAddressKey( 4057 LangOptions::SignReturnAddressKeyKind::AKey); 4058 else if (SignKey.equals_insensitive("b_key")) 4059 Opts.setSignReturnAddressKey( 4060 LangOptions::SignReturnAddressKeyKind::BKey); 4061 else 4062 Diags.Report(diag::err_drv_invalid_value) 4063 << A->getAsString(Args) << SignKey; 4064 } 4065 } 4066 } 4067 4068 // The value can be empty, which indicates the system default should be used. 4069 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4070 if (!CXXABI.empty()) { 4071 if (!TargetCXXABI::isABI(CXXABI)) { 4072 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4073 } else { 4074 auto Kind = TargetCXXABI::getKind(CXXABI); 4075 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4076 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4077 else 4078 Opts.CXXABI = Kind; 4079 } 4080 } 4081 4082 Opts.RelativeCXXABIVTables = 4083 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4084 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4085 TargetCXXABI::usesRelativeVTables(T)); 4086 4087 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4088 auto Split = StringRef(A).split('='); 4089 Opts.MacroPrefixMap.insert( 4090 {std::string(Split.first), std::string(Split.second)}); 4091 } 4092 4093 Opts.UseTargetPathSeparator = 4094 !Args.getLastArg(OPT_fno_file_reproducible) && 4095 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4096 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4097 Args.getLastArg(OPT_ffile_reproducible)); 4098 4099 // Error if -mvscale-min is unbounded. 4100 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4101 unsigned VScaleMin; 4102 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4103 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4104 } 4105 4106 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4107 std::ifstream SeedFile(A->getValue(0)); 4108 4109 if (!SeedFile.is_open()) 4110 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4111 << A->getValue(0); 4112 4113 std::getline(SeedFile, Opts.RandstructSeed); 4114 } 4115 4116 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4117 Opts.RandstructSeed = A->getValue(0); 4118 4119 // Validate options for HLSL 4120 if (Opts.HLSL) { 4121 bool SupportedTarget = T.getArch() == llvm::Triple::dxil && 4122 T.getOS() == llvm::Triple::ShaderModel; 4123 if (!SupportedTarget) 4124 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4125 } 4126 4127 return Diags.getNumErrors() == NumErrorsBefore; 4128 } 4129 4130 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4131 switch (Action) { 4132 case frontend::ASTDeclList: 4133 case frontend::ASTDump: 4134 case frontend::ASTPrint: 4135 case frontend::ASTView: 4136 case frontend::EmitAssembly: 4137 case frontend::EmitBC: 4138 case frontend::EmitHTML: 4139 case frontend::EmitLLVM: 4140 case frontend::EmitLLVMOnly: 4141 case frontend::EmitCodeGenOnly: 4142 case frontend::EmitObj: 4143 case frontend::ExtractAPI: 4144 case frontend::FixIt: 4145 case frontend::GenerateModule: 4146 case frontend::GenerateModuleInterface: 4147 case frontend::GenerateHeaderUnit: 4148 case frontend::GeneratePCH: 4149 case frontend::GenerateInterfaceStubs: 4150 case frontend::ParseSyntaxOnly: 4151 case frontend::ModuleFileInfo: 4152 case frontend::VerifyPCH: 4153 case frontend::PluginAction: 4154 case frontend::RewriteObjC: 4155 case frontend::RewriteTest: 4156 case frontend::RunAnalysis: 4157 case frontend::TemplightDump: 4158 case frontend::MigrateSource: 4159 return false; 4160 4161 case frontend::DumpCompilerOptions: 4162 case frontend::DumpRawTokens: 4163 case frontend::DumpTokens: 4164 case frontend::InitOnly: 4165 case frontend::PrintPreamble: 4166 case frontend::PrintPreprocessedInput: 4167 case frontend::RewriteMacros: 4168 case frontend::RunPreprocessorOnly: 4169 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4170 return true; 4171 } 4172 llvm_unreachable("invalid frontend action"); 4173 } 4174 4175 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4176 SmallVectorImpl<const char *> &Args, 4177 CompilerInvocation::StringAllocator SA, 4178 const LangOptions &LangOpts, 4179 const FrontendOptions &FrontendOpts, 4180 const CodeGenOptions &CodeGenOpts) { 4181 PreprocessorOptions *PreprocessorOpts = &Opts; 4182 4183 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4184 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4185 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4186 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4187 MERGER, EXTRACTOR, TABLE_INDEX) \ 4188 GENERATE_OPTION_WITH_MARSHALLING( \ 4189 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4190 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4191 #include "clang/Driver/Options.inc" 4192 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4193 4194 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4195 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4196 4197 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4198 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4199 4200 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4201 GenerateArg(Args, OPT_preamble_bytes_EQ, 4202 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4203 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4204 SA); 4205 4206 for (const auto &M : Opts.Macros) { 4207 // Don't generate __CET__ macro definitions. They are implied by the 4208 // -fcf-protection option that is generated elsewhere. 4209 if (M.first == "__CET__=1" && !M.second && 4210 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4211 continue; 4212 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4213 !CodeGenOpts.CFProtectionBranch) 4214 continue; 4215 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4216 CodeGenOpts.CFProtectionBranch) 4217 continue; 4218 4219 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4220 } 4221 4222 for (const auto &I : Opts.Includes) { 4223 // Don't generate OpenCL includes. They are implied by other flags that are 4224 // generated elsewhere. 4225 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4226 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4227 I == "opencl-c.h")) 4228 continue; 4229 // Don't generate HLSL includes. They are implied by other flags that are 4230 // generated elsewhere. 4231 if (LangOpts.HLSL && I == "hlsl.h") 4232 continue; 4233 4234 GenerateArg(Args, OPT_include, I, SA); 4235 } 4236 4237 for (const auto &CI : Opts.ChainedIncludes) 4238 GenerateArg(Args, OPT_chain_include, CI, SA); 4239 4240 for (const auto &RF : Opts.RemappedFiles) 4241 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4242 4243 if (Opts.SourceDateEpoch) 4244 GenerateArg(Args, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch), SA); 4245 4246 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4247 // generated elsewhere. 4248 } 4249 4250 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4251 DiagnosticsEngine &Diags, 4252 frontend::ActionKind Action, 4253 const FrontendOptions &FrontendOpts) { 4254 unsigned NumErrorsBefore = Diags.getNumErrors(); 4255 4256 PreprocessorOptions *PreprocessorOpts = &Opts; 4257 4258 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4259 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4260 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4261 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4262 MERGER, EXTRACTOR, TABLE_INDEX) \ 4263 PARSE_OPTION_WITH_MARSHALLING( \ 4264 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4265 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4266 #include "clang/Driver/Options.inc" 4267 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4268 4269 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4270 Args.hasArg(OPT_pch_through_hdrstop_use); 4271 4272 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4273 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4274 4275 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4276 StringRef Value(A->getValue()); 4277 size_t Comma = Value.find(','); 4278 unsigned Bytes = 0; 4279 unsigned EndOfLine = 0; 4280 4281 if (Comma == StringRef::npos || 4282 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4283 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4284 Diags.Report(diag::err_drv_preamble_format); 4285 else { 4286 Opts.PrecompiledPreambleBytes.first = Bytes; 4287 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4288 } 4289 } 4290 4291 // Add the __CET__ macro if a CFProtection option is set. 4292 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4293 StringRef Name = A->getValue(); 4294 if (Name == "branch") 4295 Opts.addMacroDef("__CET__=1"); 4296 else if (Name == "return") 4297 Opts.addMacroDef("__CET__=2"); 4298 else if (Name == "full") 4299 Opts.addMacroDef("__CET__=3"); 4300 } 4301 4302 // Add macros from the command line. 4303 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4304 if (A->getOption().matches(OPT_D)) 4305 Opts.addMacroDef(A->getValue()); 4306 else 4307 Opts.addMacroUndef(A->getValue()); 4308 } 4309 4310 // Add the ordered list of -includes. 4311 for (const auto *A : Args.filtered(OPT_include)) 4312 Opts.Includes.emplace_back(A->getValue()); 4313 4314 for (const auto *A : Args.filtered(OPT_chain_include)) 4315 Opts.ChainedIncludes.emplace_back(A->getValue()); 4316 4317 for (const auto *A : Args.filtered(OPT_remap_file)) { 4318 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4319 4320 if (Split.second.empty()) { 4321 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4322 continue; 4323 } 4324 4325 Opts.addRemappedFile(Split.first, Split.second); 4326 } 4327 4328 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4329 StringRef Epoch = A->getValue(); 4330 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4331 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4332 // 9999-12-31T23:59:59Z) as the upper bound. 4333 const uint64_t MaxTimestamp = 4334 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4335 uint64_t V; 4336 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4337 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4338 << Epoch << MaxTimestamp; 4339 } else { 4340 Opts.SourceDateEpoch = V; 4341 } 4342 } 4343 4344 // Always avoid lexing editor placeholders when we're just running the 4345 // preprocessor as we never want to emit the 4346 // "editor placeholder in source file" error in PP only mode. 4347 if (isStrictlyPreprocessorAction(Action)) 4348 Opts.LexEditorPlaceholders = false; 4349 4350 return Diags.getNumErrors() == NumErrorsBefore; 4351 } 4352 4353 static void GeneratePreprocessorOutputArgs( 4354 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4355 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4356 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4357 4358 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4359 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4360 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4361 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4362 MERGER, EXTRACTOR, TABLE_INDEX) \ 4363 GENERATE_OPTION_WITH_MARSHALLING( \ 4364 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4365 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4366 #include "clang/Driver/Options.inc" 4367 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4368 4369 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4370 if (Generate_dM) 4371 GenerateArg(Args, OPT_dM, SA); 4372 if (!Generate_dM && Opts.ShowMacros) 4373 GenerateArg(Args, OPT_dD, SA); 4374 if (Opts.DirectivesOnly) 4375 GenerateArg(Args, OPT_fdirectives_only, SA); 4376 } 4377 4378 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4379 ArgList &Args, DiagnosticsEngine &Diags, 4380 frontend::ActionKind Action) { 4381 unsigned NumErrorsBefore = Diags.getNumErrors(); 4382 4383 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4384 4385 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4386 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4387 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4388 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4389 MERGER, EXTRACTOR, TABLE_INDEX) \ 4390 PARSE_OPTION_WITH_MARSHALLING( \ 4391 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4392 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4393 #include "clang/Driver/Options.inc" 4394 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4395 4396 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4397 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4398 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4399 4400 return Diags.getNumErrors() == NumErrorsBefore; 4401 } 4402 4403 static void GenerateTargetArgs(const TargetOptions &Opts, 4404 SmallVectorImpl<const char *> &Args, 4405 CompilerInvocation::StringAllocator SA) { 4406 const TargetOptions *TargetOpts = &Opts; 4407 #define TARGET_OPTION_WITH_MARSHALLING( \ 4408 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4409 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4410 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4411 MERGER, EXTRACTOR, TABLE_INDEX) \ 4412 GENERATE_OPTION_WITH_MARSHALLING( \ 4413 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4414 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4415 #include "clang/Driver/Options.inc" 4416 #undef TARGET_OPTION_WITH_MARSHALLING 4417 4418 if (!Opts.SDKVersion.empty()) 4419 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4420 SA); 4421 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4422 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4423 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4424 } 4425 4426 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4427 DiagnosticsEngine &Diags) { 4428 unsigned NumErrorsBefore = Diags.getNumErrors(); 4429 4430 TargetOptions *TargetOpts = &Opts; 4431 4432 #define TARGET_OPTION_WITH_MARSHALLING( \ 4433 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4434 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4435 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4436 MERGER, EXTRACTOR, TABLE_INDEX) \ 4437 PARSE_OPTION_WITH_MARSHALLING( \ 4438 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4439 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4440 #include "clang/Driver/Options.inc" 4441 #undef TARGET_OPTION_WITH_MARSHALLING 4442 4443 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4444 llvm::VersionTuple Version; 4445 if (Version.tryParse(A->getValue())) 4446 Diags.Report(diag::err_drv_invalid_value) 4447 << A->getAsString(Args) << A->getValue(); 4448 else 4449 Opts.SDKVersion = Version; 4450 } 4451 if (Arg *A = 4452 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4453 llvm::VersionTuple Version; 4454 if (Version.tryParse(A->getValue())) 4455 Diags.Report(diag::err_drv_invalid_value) 4456 << A->getAsString(Args) << A->getValue(); 4457 else 4458 Opts.DarwinTargetVariantSDKVersion = Version; 4459 } 4460 4461 return Diags.getNumErrors() == NumErrorsBefore; 4462 } 4463 4464 bool CompilerInvocation::CreateFromArgsImpl( 4465 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4466 DiagnosticsEngine &Diags, const char *Argv0) { 4467 unsigned NumErrorsBefore = Diags.getNumErrors(); 4468 4469 // Parse the arguments. 4470 const OptTable &Opts = getDriverOptTable(); 4471 const unsigned IncludedFlagsBitmask = options::CC1Option; 4472 unsigned MissingArgIndex, MissingArgCount; 4473 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4474 MissingArgCount, IncludedFlagsBitmask); 4475 LangOptions &LangOpts = *Res.getLangOpts(); 4476 4477 // Check for missing argument error. 4478 if (MissingArgCount) 4479 Diags.Report(diag::err_drv_missing_argument) 4480 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4481 4482 // Issue errors on unknown arguments. 4483 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4484 auto ArgString = A->getAsString(Args); 4485 std::string Nearest; 4486 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4487 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4488 else 4489 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4490 << ArgString << Nearest; 4491 } 4492 4493 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4494 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4495 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4496 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4497 /*DefaultDiagColor=*/false); 4498 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4499 // FIXME: We shouldn't have to pass the DashX option around here 4500 InputKind DashX = Res.getFrontendOpts().DashX; 4501 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4502 llvm::Triple T(Res.getTargetOpts().Triple); 4503 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4504 Res.getFileSystemOpts().WorkingDir); 4505 4506 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4507 Diags); 4508 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4509 LangOpts.ObjCExceptions = 1; 4510 4511 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4512 if (Warning == "misexpect" && 4513 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4514 Res.getCodeGenOpts().MisExpect = true; 4515 } 4516 } 4517 4518 if (LangOpts.CUDA) { 4519 // During CUDA device-side compilation, the aux triple is the 4520 // triple used for host compilation. 4521 if (LangOpts.CUDAIsDevice) 4522 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4523 } 4524 4525 // Set the triple of the host for OpenMP device compile. 4526 if (LangOpts.OpenMPIsDevice) 4527 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4528 4529 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4530 Res.getFrontendOpts().OutputFile, LangOpts); 4531 4532 // FIXME: Override value name discarding when asan or msan is used because the 4533 // backend passes depend on the name of the alloca in order to print out 4534 // names. 4535 Res.getCodeGenOpts().DiscardValueNames &= 4536 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4537 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4538 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4539 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4540 4541 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4542 Res.getFrontendOpts().ProgramAction, 4543 Res.getFrontendOpts()); 4544 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4545 Res.getFrontendOpts().ProgramAction); 4546 4547 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4548 Res.getFrontendOpts().ProgramAction, 4549 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4550 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4551 Res.getDependencyOutputOpts().Targets.empty()) 4552 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4553 4554 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4555 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4556 !Res.getLangOpts()->Sanitize.empty()) { 4557 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4558 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4559 } 4560 4561 // Store the command-line for using in the CodeView backend. 4562 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4563 Res.getCodeGenOpts().Argv0 = Argv0; 4564 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4565 } 4566 4567 FixupInvocation(Res, Diags, Args, DashX); 4568 4569 return Diags.getNumErrors() == NumErrorsBefore; 4570 } 4571 4572 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4573 ArrayRef<const char *> CommandLineArgs, 4574 DiagnosticsEngine &Diags, 4575 const char *Argv0) { 4576 CompilerInvocation DummyInvocation; 4577 4578 return RoundTrip( 4579 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4580 DiagnosticsEngine &Diags, const char *Argv0) { 4581 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4582 }, 4583 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4584 StringAllocator SA) { 4585 Args.push_back("-cc1"); 4586 Invocation.generateCC1CommandLine(Args, SA); 4587 }, 4588 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4589 } 4590 4591 std::string CompilerInvocation::getModuleHash() const { 4592 // FIXME: Consider using SHA1 instead of MD5. 4593 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4594 4595 // Note: For QoI reasons, the things we use as a hash here should all be 4596 // dumped via the -module-info flag. 4597 4598 // Start the signature with the compiler version. 4599 HBuilder.add(getClangFullRepositoryVersion()); 4600 4601 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4602 // and getClangFullRepositoryVersion() doesn't include git revision. 4603 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4604 4605 // Extend the signature with the language options 4606 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4607 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4608 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4609 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4610 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4611 #include "clang/Basic/LangOptions.def" 4612 4613 HBuilder.addRange(LangOpts->ModuleFeatures); 4614 4615 HBuilder.add(LangOpts->ObjCRuntime); 4616 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4617 4618 // Extend the signature with the target options. 4619 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4620 TargetOpts->ABI); 4621 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4622 4623 // Extend the signature with preprocessor options. 4624 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4625 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4626 4627 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4628 for (const auto &Macro : getPreprocessorOpts().Macros) { 4629 // If we're supposed to ignore this macro for the purposes of modules, 4630 // don't put it into the hash. 4631 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4632 // Check whether we're ignoring this macro. 4633 StringRef MacroDef = Macro.first; 4634 if (hsOpts.ModulesIgnoreMacros.count( 4635 llvm::CachedHashString(MacroDef.split('=').first))) 4636 continue; 4637 } 4638 4639 HBuilder.add(Macro); 4640 } 4641 4642 // Extend the signature with the sysroot and other header search options. 4643 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4644 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4645 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4646 hsOpts.ModulesValidateDiagnosticOptions); 4647 HBuilder.add(hsOpts.ResourceDir); 4648 4649 if (hsOpts.ModulesStrictContextHash) { 4650 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4651 HBuilder.addRange(hsOpts.UserEntries); 4652 4653 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4654 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4655 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4656 HBuilder.add(diagOpts.get##Name()); 4657 #include "clang/Basic/DiagnosticOptions.def" 4658 #undef DIAGOPT 4659 #undef ENUM_DIAGOPT 4660 } 4661 4662 // Extend the signature with the user build path. 4663 HBuilder.add(hsOpts.ModuleUserBuildPath); 4664 4665 // Extend the signature with the module file extensions. 4666 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4667 ext->hashExtension(HBuilder); 4668 4669 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4670 // affects the debug info in the PCM. 4671 if (getCodeGenOpts().DebugTypeExtRefs) 4672 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4673 4674 // Extend the signature with the enabled sanitizers, if at least one is 4675 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4676 SanitizerSet SanHash = LangOpts->Sanitize; 4677 SanHash.clear(getPPTransparentSanitizers()); 4678 if (!SanHash.empty()) 4679 HBuilder.add(SanHash.Mask); 4680 4681 llvm::MD5::MD5Result Result; 4682 HBuilder.getHasher().final(Result); 4683 uint64_t Hash = Result.high() ^ Result.low(); 4684 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4685 } 4686 4687 void CompilerInvocation::generateCC1CommandLine( 4688 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4689 llvm::Triple T(TargetOpts->Triple); 4690 4691 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4692 GenerateMigratorArgs(MigratorOpts, Args, SA); 4693 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4694 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4695 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4696 GenerateTargetArgs(*TargetOpts, Args, SA); 4697 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4698 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4699 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4700 &*LangOpts); 4701 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4702 CodeGenOpts); 4703 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4704 FrontendOpts.ProgramAction); 4705 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4706 } 4707 4708 std::vector<std::string> CompilerInvocation::getCC1CommandLine() const { 4709 // Set up string allocator. 4710 llvm::BumpPtrAllocator Alloc; 4711 llvm::StringSaver Strings(Alloc); 4712 auto SA = [&Strings](const Twine &Arg) { return Strings.save(Arg).data(); }; 4713 4714 // Synthesize full command line from the CompilerInvocation, including "-cc1". 4715 SmallVector<const char *, 32> Args{"-cc1"}; 4716 generateCC1CommandLine(Args, SA); 4717 4718 // Convert arguments to the return type. 4719 return std::vector<std::string>{Args.begin(), Args.end()}; 4720 } 4721 4722 void CompilerInvocation::resetNonModularOptions() { 4723 getLangOpts()->resetNonModularOptions(); 4724 getPreprocessorOpts().resetNonModularOptions(); 4725 } 4726 4727 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4728 getLangOpts()->ImplicitModules = false; 4729 getHeaderSearchOpts().ImplicitModuleMaps = false; 4730 getHeaderSearchOpts().ModuleCachePath.clear(); 4731 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4732 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4733 // The specific values we canonicalize to for pruning don't affect behaviour, 4734 /// so use the default values so they may be dropped from the command-line. 4735 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4736 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 4737 } 4738 4739 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4740 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4741 DiagnosticsEngine &Diags) { 4742 return createVFSFromCompilerInvocation(CI, Diags, 4743 llvm::vfs::getRealFileSystem()); 4744 } 4745 4746 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4747 clang::createVFSFromCompilerInvocation( 4748 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4749 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4750 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 4751 Diags, std::move(BaseFS)); 4752 } 4753 4754 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 4755 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 4756 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4757 if (VFSOverlayFiles.empty()) 4758 return BaseFS; 4759 4760 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4761 // earlier vfs files are on the bottom 4762 for (const auto &File : VFSOverlayFiles) { 4763 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4764 Result->getBufferForFile(File); 4765 if (!Buffer) { 4766 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4767 continue; 4768 } 4769 4770 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4771 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4772 /*DiagContext*/ nullptr, Result); 4773 if (!FS) { 4774 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4775 continue; 4776 } 4777 4778 Result = FS; 4779 } 4780 return Result; 4781 } 4782