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.IBTSeal) 1499 GenerateArg(Args, OPT_mibt_seal, SA); 1500 1501 if (Opts.FunctionReturnThunks) 1502 GenerateArg(Args, OPT_mfunction_return_EQ, "thunk-extern", SA); 1503 1504 for (const auto &F : Opts.LinkBitcodeFiles) { 1505 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1506 F.PropagateAttrs && F.Internalize; 1507 GenerateArg(Args, 1508 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1509 F.Filename, SA); 1510 } 1511 1512 GenerateArg( 1513 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1514 1515 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1516 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1517 1518 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1519 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1520 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1521 SA); 1522 1523 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1524 OptSpecifier Opt = 1525 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1526 GenerateArg(Args, Opt, SA); 1527 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1528 OptSpecifier Opt = 1529 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1530 GenerateArg(Args, Opt, SA); 1531 } 1532 1533 if (Opts.EnableAIXExtendedAltivecABI) 1534 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1535 1536 if (!Opts.OptRecordPasses.empty()) 1537 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1538 1539 if (!Opts.OptRecordFormat.empty()) 1540 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1541 1542 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1543 Opts.OptimizationRemark); 1544 1545 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1546 Opts.OptimizationRemarkMissed); 1547 1548 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1549 Opts.OptimizationRemarkAnalysis); 1550 1551 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1552 Opts.DiagnosticsHotnessThreshold 1553 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1554 : "auto", 1555 SA); 1556 1557 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1558 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1559 1560 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1561 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1562 1563 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1564 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1565 1566 if (!Opts.EmitVersionIdentMetadata) 1567 GenerateArg(Args, OPT_Qn, SA); 1568 1569 switch (Opts.FiniteLoops) { 1570 case CodeGenOptions::FiniteLoopsKind::Language: 1571 break; 1572 case CodeGenOptions::FiniteLoopsKind::Always: 1573 GenerateArg(Args, OPT_ffinite_loops, SA); 1574 break; 1575 case CodeGenOptions::FiniteLoopsKind::Never: 1576 GenerateArg(Args, OPT_fno_finite_loops, SA); 1577 break; 1578 } 1579 } 1580 1581 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1582 InputKind IK, 1583 DiagnosticsEngine &Diags, 1584 const llvm::Triple &T, 1585 const std::string &OutputFile, 1586 const LangOptions &LangOptsRef) { 1587 unsigned NumErrorsBefore = Diags.getNumErrors(); 1588 1589 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1590 // TODO: This could be done in Driver 1591 unsigned MaxOptLevel = 3; 1592 if (OptimizationLevel > MaxOptLevel) { 1593 // If the optimization level is not supported, fall back on the default 1594 // optimization 1595 Diags.Report(diag::warn_drv_optimization_value) 1596 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1597 OptimizationLevel = MaxOptLevel; 1598 } 1599 Opts.OptimizationLevel = OptimizationLevel; 1600 1601 // The key paths of codegen options defined in Options.td start with 1602 // "CodeGenOpts.". Let's provide the expected variable name and type. 1603 CodeGenOptions &CodeGenOpts = Opts; 1604 // Some codegen options depend on language options. Let's provide the expected 1605 // variable name and type. 1606 const LangOptions *LangOpts = &LangOptsRef; 1607 1608 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1609 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1610 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1611 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1612 MERGER, EXTRACTOR, TABLE_INDEX) \ 1613 PARSE_OPTION_WITH_MARSHALLING( \ 1614 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1615 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1616 #include "clang/Driver/Options.inc" 1617 #undef CODEGEN_OPTION_WITH_MARSHALLING 1618 1619 // At O0 we want to fully disable inlining outside of cases marked with 1620 // 'alwaysinline' that are required for correctness. 1621 if (Opts.OptimizationLevel == 0) { 1622 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1623 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1624 options::OPT_finline_hint_functions, 1625 options::OPT_fno_inline_functions, 1626 options::OPT_fno_inline)) { 1627 // Explicit inlining flags can disable some or all inlining even at 1628 // optimization levels above zero. 1629 if (A->getOption().matches(options::OPT_finline_functions)) 1630 Opts.setInlining(CodeGenOptions::NormalInlining); 1631 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1632 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1633 else 1634 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1635 } else { 1636 Opts.setInlining(CodeGenOptions::NormalInlining); 1637 } 1638 1639 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1640 // -fdirect-access-external-data. 1641 Opts.DirectAccessExternalData = 1642 Args.hasArg(OPT_fdirect_access_external_data) || 1643 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1644 LangOpts->PICLevel == 0); 1645 1646 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1647 unsigned Val = 1648 llvm::StringSwitch<unsigned>(A->getValue()) 1649 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1650 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1651 .Case("constructor", codegenoptions::DebugInfoConstructor) 1652 .Case("limited", codegenoptions::LimitedDebugInfo) 1653 .Case("standalone", codegenoptions::FullDebugInfo) 1654 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1655 .Default(~0U); 1656 if (Val == ~0U) 1657 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1658 << A->getValue(); 1659 else 1660 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1661 } 1662 1663 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1664 // constructor homing, and vice versa for -fno-use-ctor-homing. 1665 if (const Arg *A = 1666 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1667 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1668 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1669 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1670 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1671 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1672 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1673 } 1674 1675 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1676 auto Split = StringRef(Arg).split('='); 1677 Opts.DebugPrefixMap.insert( 1678 {std::string(Split.first), std::string(Split.second)}); 1679 } 1680 1681 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1682 auto Split = StringRef(Arg).split('='); 1683 Opts.CoveragePrefixMap.insert( 1684 {std::string(Split.first), std::string(Split.second)}); 1685 } 1686 1687 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1688 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1689 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1690 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1691 1692 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1693 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1694 Opts.EmitCallSiteInfo = true; 1695 1696 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1697 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1698 << Opts.DIBugsReportFilePath; 1699 Opts.DIBugsReportFilePath = ""; 1700 } 1701 1702 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1703 Args.hasArg(OPT_new_struct_path_tbaa); 1704 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1705 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1706 if (Opts.SimplifyLibCalls) 1707 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1708 Opts.UnrollLoops = 1709 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1710 (Opts.OptimizationLevel > 1)); 1711 Opts.BinutilsVersion = 1712 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1713 1714 Opts.DebugNameTable = static_cast<unsigned>( 1715 Args.hasArg(OPT_ggnu_pubnames) 1716 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1717 : Args.hasArg(OPT_gpubnames) 1718 ? llvm::DICompileUnit::DebugNameTableKind::Default 1719 : llvm::DICompileUnit::DebugNameTableKind::None); 1720 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1721 StringRef Value = A->getValue(); 1722 if (Value != "simple" && Value != "mangled") 1723 Diags.Report(diag::err_drv_unsupported_option_argument) 1724 << A->getSpelling() << A->getValue(); 1725 Opts.setDebugSimpleTemplateNames( 1726 StringRef(A->getValue()) == "simple" 1727 ? codegenoptions::DebugTemplateNamesKind::Simple 1728 : codegenoptions::DebugTemplateNamesKind::Mangled); 1729 } 1730 1731 if (!Opts.ProfileInstrumentUsePath.empty()) 1732 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath, Diags); 1733 1734 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1735 Opts.TimePasses = true; 1736 1737 // -ftime-report= is only for new pass manager. 1738 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1739 StringRef Val = A->getValue(); 1740 if (Val == "per-pass") 1741 Opts.TimePassesPerRun = false; 1742 else if (Val == "per-pass-run") 1743 Opts.TimePassesPerRun = true; 1744 else 1745 Diags.Report(diag::err_drv_invalid_value) 1746 << A->getAsString(Args) << A->getValue(); 1747 } 1748 } 1749 1750 Opts.PrepareForLTO = false; 1751 Opts.PrepareForThinLTO = false; 1752 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1753 Opts.PrepareForLTO = true; 1754 StringRef S = A->getValue(); 1755 if (S == "thin") 1756 Opts.PrepareForThinLTO = true; 1757 else if (S != "full") 1758 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1759 } 1760 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1761 if (IK.getLanguage() != Language::LLVM_IR) 1762 Diags.Report(diag::err_drv_argument_only_allowed_with) 1763 << A->getAsString(Args) << "-x ir"; 1764 Opts.ThinLTOIndexFile = 1765 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1766 } 1767 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1768 Opts.SaveTempsFilePrefix = 1769 llvm::StringSwitch<std::string>(A->getValue()) 1770 .Case("obj", OutputFile) 1771 .Default(llvm::sys::path::filename(OutputFile).str()); 1772 1773 // The memory profile runtime appends the pid to make this name more unique. 1774 const char *MemProfileBasename = "memprof.profraw"; 1775 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1776 SmallString<128> Path( 1777 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1778 llvm::sys::path::append(Path, MemProfileBasename); 1779 Opts.MemoryProfileOutput = std::string(Path); 1780 } else if (Args.hasArg(OPT_fmemory_profile)) 1781 Opts.MemoryProfileOutput = MemProfileBasename; 1782 1783 memcpy(Opts.CoverageVersion, "408*", 4); 1784 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1785 if (Args.hasArg(OPT_coverage_version_EQ)) { 1786 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1787 if (CoverageVersion.size() != 4) { 1788 Diags.Report(diag::err_drv_invalid_value) 1789 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1790 << CoverageVersion; 1791 } else { 1792 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1793 } 1794 } 1795 } 1796 // FIXME: For backend options that are not yet recorded as function 1797 // attributes in the IR, keep track of them so we can embed them in a 1798 // separate data section and use them when building the bitcode. 1799 for (const auto &A : Args) { 1800 // Do not encode output and input. 1801 if (A->getOption().getID() == options::OPT_o || 1802 A->getOption().getID() == options::OPT_INPUT || 1803 A->getOption().getID() == options::OPT_x || 1804 A->getOption().getID() == options::OPT_fembed_bitcode || 1805 A->getOption().matches(options::OPT_W_Group)) 1806 continue; 1807 ArgStringList ASL; 1808 A->render(Args, ASL); 1809 for (const auto &arg : ASL) { 1810 StringRef ArgStr(arg); 1811 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1812 // using \00 to separate each commandline options. 1813 Opts.CmdArgs.push_back('\0'); 1814 } 1815 } 1816 1817 auto XRayInstrBundles = 1818 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1819 if (XRayInstrBundles.empty()) 1820 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1821 else 1822 for (const auto &A : XRayInstrBundles) 1823 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1824 Diags, Opts.XRayInstrumentationBundle); 1825 1826 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1827 StringRef Name = A->getValue(); 1828 if (Name == "full") { 1829 Opts.CFProtectionReturn = 1; 1830 Opts.CFProtectionBranch = 1; 1831 } else if (Name == "return") 1832 Opts.CFProtectionReturn = 1; 1833 else if (Name == "branch") 1834 Opts.CFProtectionBranch = 1; 1835 else if (Name != "none") 1836 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1837 } 1838 1839 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1840 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1841 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1842 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1843 .Default(llvm::FunctionReturnThunksKind::Invalid); 1844 // SystemZ might want to add support for "expolines." 1845 if (!T.isX86()) 1846 Diags.Report(diag::err_drv_argument_not_allowed_with) 1847 << A->getSpelling() << T.getTriple(); 1848 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1849 Diags.Report(diag::err_drv_invalid_value) 1850 << A->getAsString(Args) << A->getValue(); 1851 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1852 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1853 Diags.Report(diag::err_drv_argument_not_allowed_with) 1854 << A->getAsString(Args) 1855 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1856 else 1857 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1858 } 1859 1860 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1861 Opts.IBTSeal = 1; 1862 1863 for (auto *A : 1864 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1865 CodeGenOptions::BitcodeFileToLink F; 1866 F.Filename = A->getValue(); 1867 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1868 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1869 // When linking CUDA bitcode, propagate function attributes so that 1870 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1871 F.PropagateAttrs = true; 1872 F.Internalize = true; 1873 } 1874 Opts.LinkBitcodeFiles.push_back(F); 1875 } 1876 1877 if (!Args.getLastArg(OPT_femulated_tls) && 1878 !Args.getLastArg(OPT_fno_emulated_tls)) { 1879 Opts.EmulatedTLS = T.hasDefaultEmulatedTLS(); 1880 } 1881 1882 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1883 if (T.isOSAIX()) { 1884 StringRef Name = A->getValue(); 1885 if (Name != "global-dynamic") 1886 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1887 } 1888 } 1889 1890 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1891 StringRef Val = A->getValue(); 1892 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1893 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1894 if (!Opts.FPDenormalMode.isValid()) 1895 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1896 } 1897 1898 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1899 StringRef Val = A->getValue(); 1900 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1901 if (!Opts.FP32DenormalMode.isValid()) 1902 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1903 } 1904 1905 // X86_32 has -fppc-struct-return and -freg-struct-return. 1906 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1907 if (Arg *A = 1908 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1909 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1910 // TODO: We might want to consider enabling these options on AIX in the 1911 // future. 1912 if (T.isOSAIX()) 1913 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1914 << A->getSpelling() << T.str(); 1915 1916 const Option &O = A->getOption(); 1917 if (O.matches(OPT_fpcc_struct_return) || 1918 O.matches(OPT_maix_struct_return)) { 1919 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1920 } else { 1921 assert(O.matches(OPT_freg_struct_return) || 1922 O.matches(OPT_msvr4_struct_return)); 1923 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1924 } 1925 } 1926 1927 if (Arg *A = 1928 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1929 if (!T.isOSAIX()) 1930 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1931 << A->getSpelling() << T.str(); 1932 1933 const Option &O = A->getOption(); 1934 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1935 } 1936 1937 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1938 if (!T.isOSAIX() || T.isPPC32()) 1939 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1940 << A->getSpelling() << T.str(); 1941 } 1942 1943 bool NeedLocTracking = false; 1944 1945 if (!Opts.OptRecordFile.empty()) 1946 NeedLocTracking = true; 1947 1948 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1949 Opts.OptRecordPasses = A->getValue(); 1950 NeedLocTracking = true; 1951 } 1952 1953 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1954 Opts.OptRecordFormat = A->getValue(); 1955 NeedLocTracking = true; 1956 } 1957 1958 Opts.OptimizationRemark = 1959 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1960 1961 Opts.OptimizationRemarkMissed = 1962 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1963 1964 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1965 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1966 1967 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1968 Opts.OptimizationRemarkMissed.hasValidPattern() || 1969 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1970 1971 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1972 bool UsingProfile = UsingSampleProfile || 1973 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1974 1975 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1976 // An IR file will contain PGO as metadata 1977 IK.getLanguage() != Language::LLVM_IR) 1978 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1979 << "-fdiagnostics-show-hotness"; 1980 1981 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1982 if (auto *arg = 1983 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1984 auto ResultOrErr = 1985 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1986 1987 if (!ResultOrErr) { 1988 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1989 << "-fdiagnostics-hotness-threshold="; 1990 } else { 1991 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1992 if ((!Opts.DiagnosticsHotnessThreshold || 1993 *Opts.DiagnosticsHotnessThreshold > 0) && 1994 !UsingProfile) 1995 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1996 << "-fdiagnostics-hotness-threshold="; 1997 } 1998 } 1999 2000 if (auto *arg = 2001 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2002 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2003 2004 if (!ResultOrErr) { 2005 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2006 << "-fdiagnostics-misexpect-tolerance="; 2007 } else { 2008 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2009 if ((!Opts.DiagnosticsMisExpectTolerance || 2010 *Opts.DiagnosticsMisExpectTolerance > 0) && 2011 !UsingProfile) 2012 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2013 << "-fdiagnostics-misexpect-tolerance="; 2014 } 2015 } 2016 2017 // If the user requested to use a sample profile for PGO, then the 2018 // backend will need to track source location information so the profile 2019 // can be incorporated into the IR. 2020 if (UsingSampleProfile) 2021 NeedLocTracking = true; 2022 2023 if (!Opts.StackUsageOutput.empty()) 2024 NeedLocTracking = true; 2025 2026 // If the user requested a flag that requires source locations available in 2027 // the backend, make sure that the backend tracks source location information. 2028 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2029 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2030 2031 // Parse -fsanitize-recover= arguments. 2032 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2033 parseSanitizerKinds("-fsanitize-recover=", 2034 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2035 Opts.SanitizeRecover); 2036 parseSanitizerKinds("-fsanitize-trap=", 2037 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2038 Opts.SanitizeTrap); 2039 2040 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2041 2042 if (Args.hasArg(options::OPT_ffinite_loops)) 2043 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2044 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2045 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2046 2047 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2048 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2049 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2050 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2051 2052 return Diags.getNumErrors() == NumErrorsBefore; 2053 } 2054 2055 static void 2056 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2057 SmallVectorImpl<const char *> &Args, 2058 CompilerInvocation::StringAllocator SA) { 2059 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2060 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2061 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2062 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2063 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2064 MERGER, EXTRACTOR, TABLE_INDEX) \ 2065 GENERATE_OPTION_WITH_MARSHALLING( \ 2066 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2067 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2068 #include "clang/Driver/Options.inc" 2069 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2070 2071 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2072 GenerateArg(Args, OPT_show_includes, SA); 2073 2074 for (const auto &Dep : Opts.ExtraDeps) { 2075 switch (Dep.second) { 2076 case EDK_SanitizeIgnorelist: 2077 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2078 continue; 2079 case EDK_ModuleFile: 2080 // Module file arguments are generated from FrontendOptions and 2081 // HeaderSearchOptions. 2082 continue; 2083 case EDK_ProfileList: 2084 // Profile list arguments are generated from LanguageOptions via the 2085 // marshalling infrastructure. 2086 continue; 2087 case EDK_DepFileEntry: 2088 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2089 break; 2090 } 2091 } 2092 } 2093 2094 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2095 ArgList &Args, DiagnosticsEngine &Diags, 2096 frontend::ActionKind Action, 2097 bool ShowLineMarkers) { 2098 unsigned NumErrorsBefore = Diags.getNumErrors(); 2099 2100 DependencyOutputOptions &DependencyOutputOpts = Opts; 2101 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2102 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2103 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2104 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2105 MERGER, EXTRACTOR, TABLE_INDEX) \ 2106 PARSE_OPTION_WITH_MARSHALLING( \ 2107 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2108 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2109 #include "clang/Driver/Options.inc" 2110 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2111 2112 if (Args.hasArg(OPT_show_includes)) { 2113 // Writing both /showIncludes and preprocessor output to stdout 2114 // would produce interleaved output, so use stderr for /showIncludes. 2115 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2116 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2117 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2118 else 2119 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2120 } else { 2121 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2122 } 2123 2124 // Add sanitizer ignorelists as extra dependencies. 2125 // They won't be discovered by the regular preprocessor, so 2126 // we let make / ninja to know about this implicit dependency. 2127 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2128 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2129 StringRef Val = A->getValue(); 2130 if (!Val.contains('=')) 2131 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2132 } 2133 if (Opts.IncludeSystemHeaders) { 2134 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2135 StringRef Val = A->getValue(); 2136 if (!Val.contains('=')) 2137 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2138 } 2139 } 2140 } 2141 2142 // -fprofile-list= dependencies. 2143 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2144 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2145 2146 // Propagate the extra dependencies. 2147 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2148 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2149 2150 // Only the -fmodule-file=<file> form. 2151 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2152 StringRef Val = A->getValue(); 2153 if (!Val.contains('=')) 2154 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2155 } 2156 2157 // Check for invalid combinations of header-include-format 2158 // and header-include-filtering. 2159 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2160 Opts.HeaderIncludeFiltering != HIFIL_None) || 2161 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2162 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2163 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2164 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2165 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2166 2167 return Diags.getNumErrors() == NumErrorsBefore; 2168 } 2169 2170 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2171 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2172 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2173 // Support both clang's -f[no-]color-diagnostics and gcc's 2174 // -f[no-]diagnostics-colors[=never|always|auto]. 2175 enum { 2176 Colors_On, 2177 Colors_Off, 2178 Colors_Auto 2179 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2180 for (auto *A : Args) { 2181 const Option &O = A->getOption(); 2182 if (O.matches(options::OPT_fcolor_diagnostics)) { 2183 ShowColors = Colors_On; 2184 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2185 ShowColors = Colors_Off; 2186 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2187 StringRef Value(A->getValue()); 2188 if (Value == "always") 2189 ShowColors = Colors_On; 2190 else if (Value == "never") 2191 ShowColors = Colors_Off; 2192 else if (Value == "auto") 2193 ShowColors = Colors_Auto; 2194 } 2195 } 2196 return ShowColors == Colors_On || 2197 (ShowColors == Colors_Auto && 2198 llvm::sys::Process::StandardErrHasColors()); 2199 } 2200 2201 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2202 DiagnosticsEngine &Diags) { 2203 bool Success = true; 2204 for (const auto &Prefix : VerifyPrefixes) { 2205 // Every prefix must start with a letter and contain only alphanumeric 2206 // characters, hyphens, and underscores. 2207 auto BadChar = llvm::find_if(Prefix, [](char C) { 2208 return !isAlphanumeric(C) && C != '-' && C != '_'; 2209 }); 2210 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2211 Success = false; 2212 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2213 Diags.Report(diag::note_drv_verify_prefix_spelling); 2214 } 2215 } 2216 return Success; 2217 } 2218 2219 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2220 SmallVectorImpl<const char *> &Args, 2221 CompilerInvocation::StringAllocator SA) { 2222 const FileSystemOptions &FileSystemOpts = Opts; 2223 2224 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2225 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2226 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2227 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2228 MERGER, EXTRACTOR, TABLE_INDEX) \ 2229 GENERATE_OPTION_WITH_MARSHALLING( \ 2230 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2231 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2232 #include "clang/Driver/Options.inc" 2233 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2234 } 2235 2236 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2237 DiagnosticsEngine &Diags) { 2238 unsigned NumErrorsBefore = Diags.getNumErrors(); 2239 2240 FileSystemOptions &FileSystemOpts = Opts; 2241 2242 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2243 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2244 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2245 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2246 MERGER, EXTRACTOR, TABLE_INDEX) \ 2247 PARSE_OPTION_WITH_MARSHALLING( \ 2248 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2249 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2250 #include "clang/Driver/Options.inc" 2251 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2252 2253 return Diags.getNumErrors() == NumErrorsBefore; 2254 } 2255 2256 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2257 SmallVectorImpl<const char *> &Args, 2258 CompilerInvocation::StringAllocator SA) { 2259 const MigratorOptions &MigratorOpts = Opts; 2260 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2261 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2262 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2263 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2264 MERGER, EXTRACTOR, TABLE_INDEX) \ 2265 GENERATE_OPTION_WITH_MARSHALLING( \ 2266 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2267 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2268 #include "clang/Driver/Options.inc" 2269 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2270 } 2271 2272 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2273 DiagnosticsEngine &Diags) { 2274 unsigned NumErrorsBefore = Diags.getNumErrors(); 2275 2276 MigratorOptions &MigratorOpts = Opts; 2277 2278 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2279 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2280 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2281 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2282 MERGER, EXTRACTOR, TABLE_INDEX) \ 2283 PARSE_OPTION_WITH_MARSHALLING( \ 2284 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2285 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2286 #include "clang/Driver/Options.inc" 2287 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2288 2289 return Diags.getNumErrors() == NumErrorsBefore; 2290 } 2291 2292 void CompilerInvocation::GenerateDiagnosticArgs( 2293 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2294 StringAllocator SA, bool DefaultDiagColor) { 2295 const DiagnosticOptions *DiagnosticOpts = &Opts; 2296 #define DIAG_OPTION_WITH_MARSHALLING( \ 2297 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2298 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2299 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2300 MERGER, EXTRACTOR, TABLE_INDEX) \ 2301 GENERATE_OPTION_WITH_MARSHALLING( \ 2302 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2303 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2304 #include "clang/Driver/Options.inc" 2305 #undef DIAG_OPTION_WITH_MARSHALLING 2306 2307 if (!Opts.DiagnosticSerializationFile.empty()) 2308 GenerateArg(Args, OPT_diagnostic_serialized_file, 2309 Opts.DiagnosticSerializationFile, SA); 2310 2311 if (Opts.ShowColors) 2312 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2313 2314 if (Opts.VerifyDiagnostics && 2315 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2316 GenerateArg(Args, OPT_verify, SA); 2317 2318 for (const auto &Prefix : Opts.VerifyPrefixes) 2319 if (Prefix != "expected") 2320 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2321 2322 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2323 if (VIU == DiagnosticLevelMask::None) { 2324 // This is the default, don't generate anything. 2325 } else if (VIU == DiagnosticLevelMask::All) { 2326 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2327 } else { 2328 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2329 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2330 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2331 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2332 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2333 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2334 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2335 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2336 } 2337 2338 for (const auto &Warning : Opts.Warnings) { 2339 // This option is automatically generated from UndefPrefixes. 2340 if (Warning == "undef-prefix") 2341 continue; 2342 Args.push_back(SA(StringRef("-W") + Warning)); 2343 } 2344 2345 for (const auto &Remark : Opts.Remarks) { 2346 // These arguments are generated from OptimizationRemark fields of 2347 // CodeGenOptions. 2348 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2349 "pass-analysis", "no-pass-analysis", 2350 "pass-missed", "no-pass-missed"}; 2351 if (llvm::is_contained(IgnoredRemarks, Remark)) 2352 continue; 2353 2354 Args.push_back(SA(StringRef("-R") + Remark)); 2355 } 2356 } 2357 2358 std::unique_ptr<DiagnosticOptions> 2359 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2360 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2361 unsigned MissingArgIndex, MissingArgCount; 2362 InputArgList Args = getDriverOptTable().ParseArgs( 2363 Argv.slice(1), MissingArgIndex, MissingArgCount); 2364 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2365 // Any errors that would be diagnosed here will also be diagnosed later, 2366 // when the DiagnosticsEngine actually exists. 2367 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2368 return DiagOpts; 2369 } 2370 2371 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2372 DiagnosticsEngine *Diags, 2373 bool DefaultDiagColor) { 2374 std::optional<DiagnosticsEngine> IgnoringDiags; 2375 if (!Diags) { 2376 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2377 new IgnoringDiagConsumer()); 2378 Diags = &*IgnoringDiags; 2379 } 2380 2381 unsigned NumErrorsBefore = Diags->getNumErrors(); 2382 2383 // The key paths of diagnostic options defined in Options.td start with 2384 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2385 DiagnosticOptions *DiagnosticOpts = &Opts; 2386 2387 #define DIAG_OPTION_WITH_MARSHALLING( \ 2388 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2389 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2390 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2391 MERGER, EXTRACTOR, TABLE_INDEX) \ 2392 PARSE_OPTION_WITH_MARSHALLING( \ 2393 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2394 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2395 #include "clang/Driver/Options.inc" 2396 #undef DIAG_OPTION_WITH_MARSHALLING 2397 2398 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2399 2400 if (Arg *A = 2401 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2402 Opts.DiagnosticSerializationFile = A->getValue(); 2403 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2404 2405 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2406 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2407 if (Args.hasArg(OPT_verify)) 2408 Opts.VerifyPrefixes.push_back("expected"); 2409 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2410 // then sort it to prepare for fast lookup using std::binary_search. 2411 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2412 Opts.VerifyDiagnostics = false; 2413 else 2414 llvm::sort(Opts.VerifyPrefixes); 2415 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2416 parseDiagnosticLevelMask( 2417 "-verify-ignore-unexpected=", 2418 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2419 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2420 DiagMask = DiagnosticLevelMask::All; 2421 Opts.setVerifyIgnoreUnexpected(DiagMask); 2422 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2423 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2424 Diags->Report(diag::warn_ignoring_ftabstop_value) 2425 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2426 } 2427 2428 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2429 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2430 2431 return Diags->getNumErrors() == NumErrorsBefore; 2432 } 2433 2434 /// Parse the argument to the -ftest-module-file-extension 2435 /// command-line argument. 2436 /// 2437 /// \returns true on error, false on success. 2438 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2439 std::string &BlockName, 2440 unsigned &MajorVersion, 2441 unsigned &MinorVersion, 2442 bool &Hashed, 2443 std::string &UserInfo) { 2444 SmallVector<StringRef, 5> Args; 2445 Arg.split(Args, ':', 5); 2446 if (Args.size() < 5) 2447 return true; 2448 2449 BlockName = std::string(Args[0]); 2450 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2451 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2452 if (Args[3].getAsInteger(2, Hashed)) return true; 2453 if (Args.size() > 4) 2454 UserInfo = std::string(Args[4]); 2455 return false; 2456 } 2457 2458 /// Return a table that associates command line option specifiers with the 2459 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2460 /// intentionally missing, as this case is handled separately from other 2461 /// frontend options. 2462 static const auto &getFrontendActionTable() { 2463 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2464 {frontend::ASTDeclList, OPT_ast_list}, 2465 2466 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2467 {frontend::ASTDump, OPT_ast_dump_all}, 2468 {frontend::ASTDump, OPT_ast_dump_EQ}, 2469 {frontend::ASTDump, OPT_ast_dump}, 2470 {frontend::ASTDump, OPT_ast_dump_lookups}, 2471 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2472 2473 {frontend::ASTPrint, OPT_ast_print}, 2474 {frontend::ASTView, OPT_ast_view}, 2475 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2476 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2477 {frontend::DumpTokens, OPT_dump_tokens}, 2478 {frontend::EmitAssembly, OPT_S}, 2479 {frontend::EmitBC, OPT_emit_llvm_bc}, 2480 {frontend::EmitHTML, OPT_emit_html}, 2481 {frontend::EmitLLVM, OPT_emit_llvm}, 2482 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2483 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2484 {frontend::EmitObj, OPT_emit_obj}, 2485 {frontend::ExtractAPI, OPT_extract_api}, 2486 2487 {frontend::FixIt, OPT_fixit_EQ}, 2488 {frontend::FixIt, OPT_fixit}, 2489 2490 {frontend::GenerateModule, OPT_emit_module}, 2491 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2492 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2493 {frontend::GeneratePCH, OPT_emit_pch}, 2494 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2495 {frontend::InitOnly, OPT_init_only}, 2496 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2497 {frontend::ModuleFileInfo, OPT_module_file_info}, 2498 {frontend::VerifyPCH, OPT_verify_pch}, 2499 {frontend::PrintPreamble, OPT_print_preamble}, 2500 {frontend::PrintPreprocessedInput, OPT_E}, 2501 {frontend::TemplightDump, OPT_templight_dump}, 2502 {frontend::RewriteMacros, OPT_rewrite_macros}, 2503 {frontend::RewriteObjC, OPT_rewrite_objc}, 2504 {frontend::RewriteTest, OPT_rewrite_test}, 2505 {frontend::RunAnalysis, OPT_analyze}, 2506 {frontend::MigrateSource, OPT_migrate}, 2507 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2508 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2509 OPT_print_dependency_directives_minimized_source}, 2510 }; 2511 2512 return Table; 2513 } 2514 2515 /// Maps command line option to frontend action. 2516 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2517 for (const auto &ActionOpt : getFrontendActionTable()) 2518 if (ActionOpt.second == Opt.getID()) 2519 return ActionOpt.first; 2520 2521 return std::nullopt; 2522 } 2523 2524 /// Maps frontend action to command line option. 2525 static Optional<OptSpecifier> 2526 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2527 for (const auto &ActionOpt : getFrontendActionTable()) 2528 if (ActionOpt.first == ProgramAction) 2529 return OptSpecifier(ActionOpt.second); 2530 2531 return std::nullopt; 2532 } 2533 2534 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2535 SmallVectorImpl<const char *> &Args, 2536 CompilerInvocation::StringAllocator SA, 2537 bool IsHeader) { 2538 const FrontendOptions &FrontendOpts = Opts; 2539 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2540 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2541 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2542 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2543 MERGER, EXTRACTOR, TABLE_INDEX) \ 2544 GENERATE_OPTION_WITH_MARSHALLING( \ 2545 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2546 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2547 #include "clang/Driver/Options.inc" 2548 #undef FRONTEND_OPTION_WITH_MARSHALLING 2549 2550 Optional<OptSpecifier> ProgramActionOpt = 2551 getProgramActionOpt(Opts.ProgramAction); 2552 2553 // Generating a simple flag covers most frontend actions. 2554 std::function<void()> GenerateProgramAction = [&]() { 2555 GenerateArg(Args, *ProgramActionOpt, SA); 2556 }; 2557 2558 if (!ProgramActionOpt) { 2559 // PluginAction is the only program action handled separately. 2560 assert(Opts.ProgramAction == frontend::PluginAction && 2561 "Frontend action without option."); 2562 GenerateProgramAction = [&]() { 2563 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2564 }; 2565 } 2566 2567 // FIXME: Simplify the complex 'AST dump' command line. 2568 if (Opts.ProgramAction == frontend::ASTDump) { 2569 GenerateProgramAction = [&]() { 2570 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2571 // marshalling infrastructure. 2572 2573 if (Opts.ASTDumpFormat != ADOF_Default) { 2574 StringRef Format; 2575 switch (Opts.ASTDumpFormat) { 2576 case ADOF_Default: 2577 llvm_unreachable("Default AST dump format."); 2578 case ADOF_JSON: 2579 Format = "json"; 2580 break; 2581 } 2582 2583 if (Opts.ASTDumpAll) 2584 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2585 if (Opts.ASTDumpDecls) 2586 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2587 } else { 2588 if (Opts.ASTDumpAll) 2589 GenerateArg(Args, OPT_ast_dump_all, SA); 2590 if (Opts.ASTDumpDecls) 2591 GenerateArg(Args, OPT_ast_dump, SA); 2592 } 2593 }; 2594 } 2595 2596 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2597 GenerateProgramAction = [&]() { 2598 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2599 }; 2600 } 2601 2602 GenerateProgramAction(); 2603 2604 for (const auto &PluginArgs : Opts.PluginArgs) { 2605 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2606 const char *Spelling = 2607 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2608 for (const auto &PluginArg : PluginArgs.second) 2609 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2610 } 2611 2612 for (const auto &Ext : Opts.ModuleFileExtensions) 2613 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2614 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2615 2616 if (!Opts.CodeCompletionAt.FileName.empty()) 2617 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2618 SA); 2619 2620 for (const auto &Plugin : Opts.Plugins) 2621 GenerateArg(Args, OPT_load, Plugin, SA); 2622 2623 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2624 2625 for (const auto &ModuleFile : Opts.ModuleFiles) 2626 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2627 2628 if (Opts.AuxTargetCPU) 2629 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2630 2631 if (Opts.AuxTargetFeatures) 2632 for (const auto &Feature : *Opts.AuxTargetFeatures) 2633 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2634 2635 { 2636 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2637 StringRef ModuleMap = 2638 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2639 StringRef HeaderUnit = ""; 2640 switch (Opts.DashX.getHeaderUnitKind()) { 2641 case InputKind::HeaderUnit_None: 2642 break; 2643 case InputKind::HeaderUnit_User: 2644 HeaderUnit = "-user"; 2645 break; 2646 case InputKind::HeaderUnit_System: 2647 HeaderUnit = "-system"; 2648 break; 2649 case InputKind::HeaderUnit_Abs: 2650 HeaderUnit = "-header-unit"; 2651 break; 2652 } 2653 StringRef Header = IsHeader ? "-header" : ""; 2654 2655 StringRef Lang; 2656 switch (Opts.DashX.getLanguage()) { 2657 case Language::C: 2658 Lang = "c"; 2659 break; 2660 case Language::OpenCL: 2661 Lang = "cl"; 2662 break; 2663 case Language::OpenCLCXX: 2664 Lang = "clcpp"; 2665 break; 2666 case Language::CUDA: 2667 Lang = "cuda"; 2668 break; 2669 case Language::HIP: 2670 Lang = "hip"; 2671 break; 2672 case Language::CXX: 2673 Lang = "c++"; 2674 break; 2675 case Language::ObjC: 2676 Lang = "objective-c"; 2677 break; 2678 case Language::ObjCXX: 2679 Lang = "objective-c++"; 2680 break; 2681 case Language::RenderScript: 2682 Lang = "renderscript"; 2683 break; 2684 case Language::Asm: 2685 Lang = "assembler-with-cpp"; 2686 break; 2687 case Language::Unknown: 2688 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2689 "Generating -x argument for unknown language (not precompiled)."); 2690 Lang = "ast"; 2691 break; 2692 case Language::LLVM_IR: 2693 Lang = "ir"; 2694 break; 2695 case Language::HLSL: 2696 Lang = "hlsl"; 2697 break; 2698 } 2699 2700 GenerateArg(Args, OPT_x, 2701 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2702 } 2703 2704 // OPT_INPUT has a unique class, generate it directly. 2705 for (const auto &Input : Opts.Inputs) 2706 Args.push_back(SA(Input.getFile())); 2707 } 2708 2709 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2710 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2711 unsigned NumErrorsBefore = Diags.getNumErrors(); 2712 2713 FrontendOptions &FrontendOpts = Opts; 2714 2715 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2716 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2717 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2718 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2719 MERGER, EXTRACTOR, TABLE_INDEX) \ 2720 PARSE_OPTION_WITH_MARSHALLING( \ 2721 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2722 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2723 #include "clang/Driver/Options.inc" 2724 #undef FRONTEND_OPTION_WITH_MARSHALLING 2725 2726 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2727 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2728 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2729 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2730 assert(ProgramAction && "Option specifier not in Action_Group."); 2731 2732 if (ProgramAction == frontend::ASTDump && 2733 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2734 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2735 .CaseLower("default", ADOF_Default) 2736 .CaseLower("json", ADOF_JSON) 2737 .Default(std::numeric_limits<unsigned>::max()); 2738 2739 if (Val != std::numeric_limits<unsigned>::max()) 2740 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2741 else { 2742 Diags.Report(diag::err_drv_invalid_value) 2743 << A->getAsString(Args) << A->getValue(); 2744 Opts.ASTDumpFormat = ADOF_Default; 2745 } 2746 } 2747 2748 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2749 Opts.FixItSuffix = A->getValue(); 2750 2751 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2752 StringRef ArgStr = 2753 Args.hasArg(OPT_interface_stub_version_EQ) 2754 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2755 : "ifs-v1"; 2756 if (ArgStr == "experimental-yaml-elf-v1" || 2757 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2758 ArgStr == "experimental-tapi-elf-v1") { 2759 std::string ErrorMessage = 2760 "Invalid interface stub format: " + ArgStr.str() + 2761 " is deprecated."; 2762 Diags.Report(diag::err_drv_invalid_value) 2763 << "Must specify a valid interface stub format type, ie: " 2764 "-interface-stub-version=ifs-v1" 2765 << ErrorMessage; 2766 ProgramAction = frontend::ParseSyntaxOnly; 2767 } else if (!ArgStr.startswith("ifs-")) { 2768 std::string ErrorMessage = 2769 "Invalid interface stub format: " + ArgStr.str() + "."; 2770 Diags.Report(diag::err_drv_invalid_value) 2771 << "Must specify a valid interface stub format type, ie: " 2772 "-interface-stub-version=ifs-v1" 2773 << ErrorMessage; 2774 ProgramAction = frontend::ParseSyntaxOnly; 2775 } 2776 } 2777 2778 Opts.ProgramAction = *ProgramAction; 2779 } 2780 2781 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2782 Opts.Plugins.emplace_back(A->getValue(0)); 2783 Opts.ProgramAction = frontend::PluginAction; 2784 Opts.ActionName = A->getValue(); 2785 } 2786 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2787 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2788 2789 for (const std::string &Arg : 2790 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2791 std::string BlockName; 2792 unsigned MajorVersion; 2793 unsigned MinorVersion; 2794 bool Hashed; 2795 std::string UserInfo; 2796 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2797 MinorVersion, Hashed, UserInfo)) { 2798 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2799 2800 continue; 2801 } 2802 2803 // Add the testing module file extension. 2804 Opts.ModuleFileExtensions.push_back( 2805 std::make_shared<TestModuleFileExtension>( 2806 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2807 } 2808 2809 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2810 Opts.CodeCompletionAt = 2811 ParsedSourceLocation::FromString(A->getValue()); 2812 if (Opts.CodeCompletionAt.FileName.empty()) 2813 Diags.Report(diag::err_drv_invalid_value) 2814 << A->getAsString(Args) << A->getValue(); 2815 } 2816 2817 Opts.Plugins = Args.getAllArgValues(OPT_load); 2818 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2819 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2820 // Only the -fmodule-file=<file> form. 2821 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2822 StringRef Val = A->getValue(); 2823 if (!Val.contains('=')) 2824 Opts.ModuleFiles.push_back(std::string(Val)); 2825 } 2826 2827 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2828 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2829 << "-emit-module"; 2830 2831 if (Args.hasArg(OPT_aux_target_cpu)) 2832 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2833 if (Args.hasArg(OPT_aux_target_feature)) 2834 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2835 2836 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2837 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2838 Diags.Report(diag::err_drv_argument_not_allowed_with) 2839 << "ARC migration" << "ObjC migration"; 2840 } 2841 2842 InputKind DashX(Language::Unknown); 2843 if (const Arg *A = Args.getLastArg(OPT_x)) { 2844 StringRef XValue = A->getValue(); 2845 2846 // Parse suffixes: 2847 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2848 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2849 bool Preprocessed = XValue.consume_back("-cpp-output"); 2850 bool ModuleMap = XValue.consume_back("-module-map"); 2851 // Detect and consume the header indicator. 2852 bool IsHeader = 2853 XValue != "precompiled-header" && XValue.consume_back("-header"); 2854 2855 // If we have c++-{user,system}-header, that indicates a header unit input 2856 // likewise, if the user put -fmodule-header together with a header with an 2857 // absolute path (header-unit-header). 2858 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2859 if (IsHeader || Preprocessed) { 2860 if (XValue.consume_back("-header-unit")) 2861 HUK = InputKind::HeaderUnit_Abs; 2862 else if (XValue.consume_back("-system")) 2863 HUK = InputKind::HeaderUnit_System; 2864 else if (XValue.consume_back("-user")) 2865 HUK = InputKind::HeaderUnit_User; 2866 } 2867 2868 // The value set by this processing is an un-preprocessed source which is 2869 // not intended to be a module map or header unit. 2870 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2871 HUK == InputKind::HeaderUnit_None; 2872 2873 // Principal languages. 2874 DashX = llvm::StringSwitch<InputKind>(XValue) 2875 .Case("c", Language::C) 2876 .Case("cl", Language::OpenCL) 2877 .Case("clcpp", Language::OpenCLCXX) 2878 .Case("cuda", Language::CUDA) 2879 .Case("hip", Language::HIP) 2880 .Case("c++", Language::CXX) 2881 .Case("objective-c", Language::ObjC) 2882 .Case("objective-c++", Language::ObjCXX) 2883 .Case("renderscript", Language::RenderScript) 2884 .Case("hlsl", Language::HLSL) 2885 .Default(Language::Unknown); 2886 2887 // "objc[++]-cpp-output" is an acceptable synonym for 2888 // "objective-c[++]-cpp-output". 2889 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2890 HUK == InputKind::HeaderUnit_None) 2891 DashX = llvm::StringSwitch<InputKind>(XValue) 2892 .Case("objc", Language::ObjC) 2893 .Case("objc++", Language::ObjCXX) 2894 .Default(Language::Unknown); 2895 2896 // Some special cases cannot be combined with suffixes. 2897 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2898 HUK == InputKind::HeaderUnit_None) 2899 DashX = llvm::StringSwitch<InputKind>(XValue) 2900 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2901 .Case("assembler-with-cpp", Language::Asm) 2902 .Cases("ast", "pcm", "precompiled-header", 2903 InputKind(Language::Unknown, InputKind::Precompiled)) 2904 .Case("ir", Language::LLVM_IR) 2905 .Default(Language::Unknown); 2906 2907 if (DashX.isUnknown()) 2908 Diags.Report(diag::err_drv_invalid_value) 2909 << A->getAsString(Args) << A->getValue(); 2910 2911 if (Preprocessed) 2912 DashX = DashX.getPreprocessed(); 2913 // A regular header is considered mutually exclusive with a header unit. 2914 if (HUK != InputKind::HeaderUnit_None) { 2915 DashX = DashX.withHeaderUnit(HUK); 2916 IsHeaderFile = true; 2917 } else if (IsHeaderFile) 2918 DashX = DashX.getHeader(); 2919 if (ModuleMap) 2920 DashX = DashX.withFormat(InputKind::ModuleMap); 2921 } 2922 2923 // '-' is the default input if none is given. 2924 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2925 Opts.Inputs.clear(); 2926 if (Inputs.empty()) 2927 Inputs.push_back("-"); 2928 2929 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2930 Inputs.size() > 1) 2931 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2932 2933 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2934 InputKind IK = DashX; 2935 if (IK.isUnknown()) { 2936 IK = FrontendOptions::getInputKindForExtension( 2937 StringRef(Inputs[i]).rsplit('.').second); 2938 // FIXME: Warn on this? 2939 if (IK.isUnknown()) 2940 IK = Language::C; 2941 // FIXME: Remove this hack. 2942 if (i == 0) 2943 DashX = IK; 2944 } 2945 2946 bool IsSystem = false; 2947 2948 // The -emit-module action implicitly takes a module map. 2949 if (Opts.ProgramAction == frontend::GenerateModule && 2950 IK.getFormat() == InputKind::Source) { 2951 IK = IK.withFormat(InputKind::ModuleMap); 2952 IsSystem = Opts.IsSystemModule; 2953 } 2954 2955 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2956 } 2957 2958 Opts.DashX = DashX; 2959 2960 return Diags.getNumErrors() == NumErrorsBefore; 2961 } 2962 2963 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2964 void *MainAddr) { 2965 std::string ClangExecutable = 2966 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2967 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2968 } 2969 2970 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2971 SmallVectorImpl<const char *> &Args, 2972 CompilerInvocation::StringAllocator SA) { 2973 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2974 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2975 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2976 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2977 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2978 MERGER, EXTRACTOR, TABLE_INDEX) \ 2979 GENERATE_OPTION_WITH_MARSHALLING( \ 2980 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2981 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2982 #include "clang/Driver/Options.inc" 2983 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2984 2985 if (Opts.UseLibcxx) 2986 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2987 2988 if (!Opts.ModuleCachePath.empty()) 2989 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2990 2991 for (const auto &File : Opts.PrebuiltModuleFiles) 2992 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2993 2994 for (const auto &Path : Opts.PrebuiltModulePaths) 2995 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2996 2997 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2998 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2999 3000 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3001 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3002 std::optional<bool> IsFramework, 3003 std::optional<bool> IgnoreSysRoot) { 3004 return llvm::is_contained(Groups, Entry.Group) && 3005 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3006 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3007 }; 3008 3009 auto It = Opts.UserEntries.begin(); 3010 auto End = Opts.UserEntries.end(); 3011 3012 // Add -I..., -F..., and -index-header-map options in order. 3013 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3014 std::nullopt, true); 3015 ++It) { 3016 OptSpecifier Opt = [It, Matches]() { 3017 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3018 return OPT_F; 3019 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3020 return OPT_I; 3021 if (Matches(*It, frontend::Angled, true, true)) 3022 return OPT_F; 3023 if (Matches(*It, frontend::Angled, false, true)) 3024 return OPT_I; 3025 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3026 }(); 3027 3028 if (It->Group == frontend::IndexHeaderMap) 3029 GenerateArg(Args, OPT_index_header_map, SA); 3030 GenerateArg(Args, Opt, It->Path, SA); 3031 }; 3032 3033 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3034 // have already been generated as "-I[xx]yy". If that's the case, their 3035 // position on command line was such that this has no semantic impact on 3036 // include paths. 3037 for (; It < End && 3038 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3039 ++It) { 3040 OptSpecifier Opt = 3041 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3042 GenerateArg(Args, Opt, It->Path, SA); 3043 } 3044 3045 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3046 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3047 // command line was such that this has no semantic impact on include paths. 3048 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3049 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3050 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3051 GenerateArg(Args, OPT_iquote, It->Path, SA); 3052 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3053 ++It) 3054 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3055 It->Path, SA); 3056 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3057 GenerateArg(Args, OPT_iframework, It->Path, SA); 3058 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3059 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3060 3061 // Add the paths for the various language specific isystem flags. 3062 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3063 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3064 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3065 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3066 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3067 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3068 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3069 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3070 3071 // Add the internal paths from a driver that detects standard include paths. 3072 // Note: Some paths that came from "-internal-isystem" arguments may have 3073 // already been generated as "-isystem". If that's the case, their position on 3074 // command line was such that this has no semantic impact on include paths. 3075 for (; It < End && 3076 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3077 ++It) { 3078 OptSpecifier Opt = It->Group == frontend::System 3079 ? OPT_internal_isystem 3080 : OPT_internal_externc_isystem; 3081 GenerateArg(Args, Opt, It->Path, SA); 3082 } 3083 3084 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3085 3086 // Add the path prefixes which are implicitly treated as being system headers. 3087 for (const auto &P : Opts.SystemHeaderPrefixes) { 3088 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3089 : OPT_no_system_header_prefix; 3090 GenerateArg(Args, Opt, P.Prefix, SA); 3091 } 3092 3093 for (const std::string &F : Opts.VFSOverlayFiles) 3094 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3095 } 3096 3097 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3098 DiagnosticsEngine &Diags, 3099 const std::string &WorkingDir) { 3100 unsigned NumErrorsBefore = Diags.getNumErrors(); 3101 3102 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3103 3104 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3105 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3106 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3107 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3108 MERGER, EXTRACTOR, TABLE_INDEX) \ 3109 PARSE_OPTION_WITH_MARSHALLING( \ 3110 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3111 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3112 #include "clang/Driver/Options.inc" 3113 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3114 3115 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3116 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3117 3118 // Canonicalize -fmodules-cache-path before storing it. 3119 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3120 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3121 if (WorkingDir.empty()) 3122 llvm::sys::fs::make_absolute(P); 3123 else 3124 llvm::sys::fs::make_absolute(WorkingDir, P); 3125 } 3126 llvm::sys::path::remove_dots(P); 3127 Opts.ModuleCachePath = std::string(P.str()); 3128 3129 // Only the -fmodule-file=<name>=<file> form. 3130 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3131 StringRef Val = A->getValue(); 3132 if (Val.contains('=')) { 3133 auto Split = Val.split('='); 3134 Opts.PrebuiltModuleFiles.insert( 3135 {std::string(Split.first), std::string(Split.second)}); 3136 } 3137 } 3138 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3139 Opts.AddPrebuiltModulePath(A->getValue()); 3140 3141 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3142 StringRef MacroDef = A->getValue(); 3143 Opts.ModulesIgnoreMacros.insert( 3144 llvm::CachedHashString(MacroDef.split('=').first)); 3145 } 3146 3147 // Add -I..., -F..., and -index-header-map options in order. 3148 bool IsIndexHeaderMap = false; 3149 bool IsSysrootSpecified = 3150 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3151 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3152 if (A->getOption().matches(OPT_index_header_map)) { 3153 // -index-header-map applies to the next -I or -F. 3154 IsIndexHeaderMap = true; 3155 continue; 3156 } 3157 3158 frontend::IncludeDirGroup Group = 3159 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3160 3161 bool IsFramework = A->getOption().matches(OPT_F); 3162 std::string Path = A->getValue(); 3163 3164 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3165 SmallString<32> Buffer; 3166 llvm::sys::path::append(Buffer, Opts.Sysroot, 3167 llvm::StringRef(A->getValue()).substr(1)); 3168 Path = std::string(Buffer.str()); 3169 } 3170 3171 Opts.AddPath(Path, Group, IsFramework, 3172 /*IgnoreSysroot*/ true); 3173 IsIndexHeaderMap = false; 3174 } 3175 3176 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3177 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3178 for (const auto *A : 3179 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3180 if (A->getOption().matches(OPT_iprefix)) 3181 Prefix = A->getValue(); 3182 else if (A->getOption().matches(OPT_iwithprefix)) 3183 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3184 else 3185 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3186 } 3187 3188 for (const auto *A : Args.filtered(OPT_idirafter)) 3189 Opts.AddPath(A->getValue(), frontend::After, false, true); 3190 for (const auto *A : Args.filtered(OPT_iquote)) 3191 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3192 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3193 Opts.AddPath(A->getValue(), frontend::System, false, 3194 !A->getOption().matches(OPT_iwithsysroot)); 3195 for (const auto *A : Args.filtered(OPT_iframework)) 3196 Opts.AddPath(A->getValue(), frontend::System, true, true); 3197 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3198 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3199 /*IgnoreSysRoot=*/false); 3200 3201 // Add the paths for the various language specific isystem flags. 3202 for (const auto *A : Args.filtered(OPT_c_isystem)) 3203 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3204 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3205 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3206 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3207 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3208 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3209 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3210 3211 // Add the internal paths from a driver that detects standard include paths. 3212 for (const auto *A : 3213 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3214 frontend::IncludeDirGroup Group = frontend::System; 3215 if (A->getOption().matches(OPT_internal_externc_isystem)) 3216 Group = frontend::ExternCSystem; 3217 Opts.AddPath(A->getValue(), Group, false, true); 3218 } 3219 3220 // Add the path prefixes which are implicitly treated as being system headers. 3221 for (const auto *A : 3222 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3223 Opts.AddSystemHeaderPrefix( 3224 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3225 3226 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3227 Opts.AddVFSOverlayFile(A->getValue()); 3228 3229 return Diags.getNumErrors() == NumErrorsBefore; 3230 } 3231 3232 /// Check if input file kind and language standard are compatible. 3233 static bool IsInputCompatibleWithStandard(InputKind IK, 3234 const LangStandard &S) { 3235 switch (IK.getLanguage()) { 3236 case Language::Unknown: 3237 case Language::LLVM_IR: 3238 llvm_unreachable("should not parse language flags for this input"); 3239 3240 case Language::C: 3241 case Language::ObjC: 3242 case Language::RenderScript: 3243 return S.getLanguage() == Language::C; 3244 3245 case Language::OpenCL: 3246 return S.getLanguage() == Language::OpenCL || 3247 S.getLanguage() == Language::OpenCLCXX; 3248 3249 case Language::OpenCLCXX: 3250 return S.getLanguage() == Language::OpenCLCXX; 3251 3252 case Language::CXX: 3253 case Language::ObjCXX: 3254 return S.getLanguage() == Language::CXX; 3255 3256 case Language::CUDA: 3257 // FIXME: What -std= values should be permitted for CUDA compilations? 3258 return S.getLanguage() == Language::CUDA || 3259 S.getLanguage() == Language::CXX; 3260 3261 case Language::HIP: 3262 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3263 3264 case Language::Asm: 3265 // Accept (and ignore) all -std= values. 3266 // FIXME: The -std= value is not ignored; it affects the tokenization 3267 // and preprocessing rules if we're preprocessing this asm input. 3268 return true; 3269 3270 case Language::HLSL: 3271 return S.getLanguage() == Language::HLSL; 3272 } 3273 3274 llvm_unreachable("unexpected input language"); 3275 } 3276 3277 /// Get language name for given input kind. 3278 static StringRef GetInputKindName(InputKind IK) { 3279 switch (IK.getLanguage()) { 3280 case Language::C: 3281 return "C"; 3282 case Language::ObjC: 3283 return "Objective-C"; 3284 case Language::CXX: 3285 return "C++"; 3286 case Language::ObjCXX: 3287 return "Objective-C++"; 3288 case Language::OpenCL: 3289 return "OpenCL"; 3290 case Language::OpenCLCXX: 3291 return "C++ for OpenCL"; 3292 case Language::CUDA: 3293 return "CUDA"; 3294 case Language::RenderScript: 3295 return "RenderScript"; 3296 case Language::HIP: 3297 return "HIP"; 3298 3299 case Language::Asm: 3300 return "Asm"; 3301 case Language::LLVM_IR: 3302 return "LLVM IR"; 3303 3304 case Language::HLSL: 3305 return "HLSL"; 3306 3307 case Language::Unknown: 3308 break; 3309 } 3310 llvm_unreachable("unknown input language"); 3311 } 3312 3313 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3314 SmallVectorImpl<const char *> &Args, 3315 StringAllocator SA, 3316 const llvm::Triple &T, InputKind IK) { 3317 if (IK.getFormat() == InputKind::Precompiled || 3318 IK.getLanguage() == Language::LLVM_IR) { 3319 if (Opts.ObjCAutoRefCount) 3320 GenerateArg(Args, OPT_fobjc_arc, SA); 3321 if (Opts.PICLevel != 0) 3322 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3323 if (Opts.PIE) 3324 GenerateArg(Args, OPT_pic_is_pie, SA); 3325 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3326 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3327 3328 return; 3329 } 3330 3331 OptSpecifier StdOpt; 3332 switch (Opts.LangStd) { 3333 case LangStandard::lang_opencl10: 3334 case LangStandard::lang_opencl11: 3335 case LangStandard::lang_opencl12: 3336 case LangStandard::lang_opencl20: 3337 case LangStandard::lang_opencl30: 3338 case LangStandard::lang_openclcpp10: 3339 case LangStandard::lang_openclcpp2021: 3340 StdOpt = OPT_cl_std_EQ; 3341 break; 3342 default: 3343 StdOpt = OPT_std_EQ; 3344 break; 3345 } 3346 3347 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3348 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3349 3350 if (Opts.IncludeDefaultHeader) 3351 GenerateArg(Args, OPT_finclude_default_header, SA); 3352 if (Opts.DeclareOpenCLBuiltins) 3353 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3354 3355 const LangOptions *LangOpts = &Opts; 3356 3357 #define LANG_OPTION_WITH_MARSHALLING( \ 3358 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3359 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3360 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3361 MERGER, EXTRACTOR, TABLE_INDEX) \ 3362 GENERATE_OPTION_WITH_MARSHALLING( \ 3363 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3364 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3365 #include "clang/Driver/Options.inc" 3366 #undef LANG_OPTION_WITH_MARSHALLING 3367 3368 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3369 3370 if (Opts.ObjC) { 3371 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3372 3373 if (Opts.GC == LangOptions::GCOnly) 3374 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3375 else if (Opts.GC == LangOptions::HybridGC) 3376 GenerateArg(Args, OPT_fobjc_gc, SA); 3377 else if (Opts.ObjCAutoRefCount == 1) 3378 GenerateArg(Args, OPT_fobjc_arc, SA); 3379 3380 if (Opts.ObjCWeakRuntime) 3381 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3382 3383 if (Opts.ObjCWeak) 3384 GenerateArg(Args, OPT_fobjc_weak, SA); 3385 3386 if (Opts.ObjCSubscriptingLegacyRuntime) 3387 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3388 } 3389 3390 if (Opts.GNUCVersion != 0) { 3391 unsigned Major = Opts.GNUCVersion / 100 / 100; 3392 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3393 unsigned Patch = Opts.GNUCVersion % 100; 3394 GenerateArg(Args, OPT_fgnuc_version_EQ, 3395 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3396 } 3397 3398 if (Opts.IgnoreXCOFFVisibility) 3399 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3400 3401 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3402 GenerateArg(Args, OPT_ftrapv, SA); 3403 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3404 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3405 GenerateArg(Args, OPT_fwrapv, SA); 3406 } 3407 3408 if (Opts.MSCompatibilityVersion != 0) { 3409 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3410 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3411 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3412 GenerateArg(Args, OPT_fms_compatibility_version, 3413 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3414 } 3415 3416 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3417 if (!Opts.Trigraphs) 3418 GenerateArg(Args, OPT_fno_trigraphs, SA); 3419 } else { 3420 if (Opts.Trigraphs) 3421 GenerateArg(Args, OPT_ftrigraphs, SA); 3422 } 3423 3424 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3425 GenerateArg(Args, OPT_fblocks, SA); 3426 3427 if (Opts.ConvergentFunctions && 3428 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3429 GenerateArg(Args, OPT_fconvergent_functions, SA); 3430 3431 if (Opts.NoBuiltin && !Opts.Freestanding) 3432 GenerateArg(Args, OPT_fno_builtin, SA); 3433 3434 if (!Opts.NoBuiltin) 3435 for (const auto &Func : Opts.NoBuiltinFuncs) 3436 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3437 3438 if (Opts.LongDoubleSize == 128) 3439 GenerateArg(Args, OPT_mlong_double_128, SA); 3440 else if (Opts.LongDoubleSize == 64) 3441 GenerateArg(Args, OPT_mlong_double_64, SA); 3442 else if (Opts.LongDoubleSize == 80) 3443 GenerateArg(Args, OPT_mlong_double_80, SA); 3444 3445 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3446 3447 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3448 // '-fopenmp-targets='. 3449 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3450 GenerateArg(Args, OPT_fopenmp, SA); 3451 3452 if (Opts.OpenMP != 50) 3453 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3454 3455 if (!Opts.OpenMPUseTLS) 3456 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3457 3458 if (Opts.OpenMPIsDevice) 3459 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3460 3461 if (Opts.OpenMPIRBuilder) 3462 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3463 } 3464 3465 if (Opts.OpenMPSimd) { 3466 GenerateArg(Args, OPT_fopenmp_simd, SA); 3467 3468 if (Opts.OpenMP != 50) 3469 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3470 } 3471 3472 if (Opts.OpenMPThreadSubscription) 3473 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3474 3475 if (Opts.OpenMPTeamSubscription) 3476 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3477 3478 if (Opts.OpenMPTargetDebug != 0) 3479 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3480 Twine(Opts.OpenMPTargetDebug), SA); 3481 3482 if (Opts.OpenMPCUDANumSMs != 0) 3483 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3484 Twine(Opts.OpenMPCUDANumSMs), SA); 3485 3486 if (Opts.OpenMPCUDABlocksPerSM != 0) 3487 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3488 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3489 3490 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3491 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3492 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3493 3494 if (!Opts.OMPTargetTriples.empty()) { 3495 std::string Targets; 3496 llvm::raw_string_ostream OS(Targets); 3497 llvm::interleave( 3498 Opts.OMPTargetTriples, OS, 3499 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3500 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3501 } 3502 3503 if (!Opts.OMPHostIRFile.empty()) 3504 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3505 3506 if (Opts.OpenMPCUDAMode) 3507 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3508 3509 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3510 // generated from CodeGenOptions. 3511 3512 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3513 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3514 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3515 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3516 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3517 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3518 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3519 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3520 3521 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3522 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3523 3524 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3525 for (const std::string &F : Opts.NoSanitizeFiles) 3526 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3527 3528 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3529 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3530 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3531 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3532 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3533 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3534 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3535 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3536 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3537 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3538 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3539 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3540 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3541 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3542 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3543 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3544 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver15) 3545 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "15.0", SA); 3546 3547 if (Opts.getSignReturnAddressScope() == 3548 LangOptions::SignReturnAddressScopeKind::All) 3549 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3550 else if (Opts.getSignReturnAddressScope() == 3551 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3552 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3553 3554 if (Opts.getSignReturnAddressKey() == 3555 LangOptions::SignReturnAddressKeyKind::BKey) 3556 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3557 3558 if (Opts.CXXABI) 3559 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3560 SA); 3561 3562 if (Opts.RelativeCXXABIVTables) 3563 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3564 else 3565 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3566 3567 if (Opts.UseTargetPathSeparator) 3568 GenerateArg(Args, OPT_ffile_reproducible, SA); 3569 else 3570 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3571 3572 for (const auto &MP : Opts.MacroPrefixMap) 3573 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3574 3575 if (!Opts.RandstructSeed.empty()) 3576 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3577 } 3578 3579 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3580 InputKind IK, const llvm::Triple &T, 3581 std::vector<std::string> &Includes, 3582 DiagnosticsEngine &Diags) { 3583 unsigned NumErrorsBefore = Diags.getNumErrors(); 3584 3585 if (IK.getFormat() == InputKind::Precompiled || 3586 IK.getLanguage() == Language::LLVM_IR) { 3587 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3588 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3589 // what the input type is. 3590 if (Args.hasArg(OPT_fobjc_arc)) 3591 Opts.ObjCAutoRefCount = 1; 3592 // PICLevel and PIELevel are needed during code generation and this should 3593 // be set regardless of the input type. 3594 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3595 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3596 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3597 Diags, Opts.Sanitize); 3598 3599 return Diags.getNumErrors() == NumErrorsBefore; 3600 } 3601 3602 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3603 // FIXME: Should we really be parsing this for an Language::Asm input? 3604 3605 // FIXME: Cleanup per-file based stuff. 3606 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3607 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3608 LangStd = LangStandard::getLangKind(A->getValue()); 3609 if (LangStd == LangStandard::lang_unspecified) { 3610 Diags.Report(diag::err_drv_invalid_value) 3611 << A->getAsString(Args) << A->getValue(); 3612 // Report supported standards with short description. 3613 for (unsigned KindValue = 0; 3614 KindValue != LangStandard::lang_unspecified; 3615 ++KindValue) { 3616 const LangStandard &Std = LangStandard::getLangStandardForKind( 3617 static_cast<LangStandard::Kind>(KindValue)); 3618 if (IsInputCompatibleWithStandard(IK, Std)) { 3619 auto Diag = Diags.Report(diag::note_drv_use_standard); 3620 Diag << Std.getName() << Std.getDescription(); 3621 unsigned NumAliases = 0; 3622 #define LANGSTANDARD(id, name, lang, desc, features) 3623 #define LANGSTANDARD_ALIAS(id, alias) \ 3624 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3625 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3626 #include "clang/Basic/LangStandards.def" 3627 Diag << NumAliases; 3628 #define LANGSTANDARD(id, name, lang, desc, features) 3629 #define LANGSTANDARD_ALIAS(id, alias) \ 3630 if (KindValue == LangStandard::lang_##id) Diag << alias; 3631 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3632 #include "clang/Basic/LangStandards.def" 3633 } 3634 } 3635 } else { 3636 // Valid standard, check to make sure language and standard are 3637 // compatible. 3638 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3639 if (!IsInputCompatibleWithStandard(IK, Std)) { 3640 Diags.Report(diag::err_drv_argument_not_allowed_with) 3641 << A->getAsString(Args) << GetInputKindName(IK); 3642 } 3643 } 3644 } 3645 3646 // -cl-std only applies for OpenCL language standards. 3647 // Override the -std option in this case. 3648 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3649 LangStandard::Kind OpenCLLangStd 3650 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3651 .Cases("cl", "CL", LangStandard::lang_opencl10) 3652 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3653 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3654 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3655 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3656 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3657 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3658 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3659 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3660 .Default(LangStandard::lang_unspecified); 3661 3662 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3663 Diags.Report(diag::err_drv_invalid_value) 3664 << A->getAsString(Args) << A->getValue(); 3665 } 3666 else 3667 LangStd = OpenCLLangStd; 3668 } 3669 3670 // These need to be parsed now. They are used to set OpenCL defaults. 3671 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3672 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3673 3674 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3675 3676 // The key paths of codegen options defined in Options.td start with 3677 // "LangOpts->". Let's provide the expected variable name and type. 3678 LangOptions *LangOpts = &Opts; 3679 3680 #define LANG_OPTION_WITH_MARSHALLING( \ 3681 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3682 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3683 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3684 MERGER, EXTRACTOR, TABLE_INDEX) \ 3685 PARSE_OPTION_WITH_MARSHALLING( \ 3686 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3687 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3688 #include "clang/Driver/Options.inc" 3689 #undef LANG_OPTION_WITH_MARSHALLING 3690 3691 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3692 StringRef Name = A->getValue(); 3693 if (Name == "full" || Name == "branch") { 3694 Opts.CFProtectionBranch = 1; 3695 } 3696 } 3697 3698 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3699 !Args.hasArg(OPT_sycl_std_EQ)) { 3700 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3701 // provide -sycl-std=, we want to default it to whatever the default SYCL 3702 // version is. I could not find a way to express this with the options 3703 // tablegen because we still want this value to be SYCL_None when the user 3704 // is not in device or host mode. 3705 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3706 } 3707 3708 if (Opts.ObjC) { 3709 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3710 StringRef value = arg->getValue(); 3711 if (Opts.ObjCRuntime.tryParse(value)) 3712 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3713 } 3714 3715 if (Args.hasArg(OPT_fobjc_gc_only)) 3716 Opts.setGC(LangOptions::GCOnly); 3717 else if (Args.hasArg(OPT_fobjc_gc)) 3718 Opts.setGC(LangOptions::HybridGC); 3719 else if (Args.hasArg(OPT_fobjc_arc)) { 3720 Opts.ObjCAutoRefCount = 1; 3721 if (!Opts.ObjCRuntime.allowsARC()) 3722 Diags.Report(diag::err_arc_unsupported_on_runtime); 3723 } 3724 3725 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3726 // whether the feature is actually enabled. This is predominantly 3727 // determined by -fobjc-runtime, but we allow it to be overridden 3728 // from the command line for testing purposes. 3729 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3730 Opts.ObjCWeakRuntime = 1; 3731 else 3732 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3733 3734 // ObjCWeak determines whether __weak is actually enabled. 3735 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3736 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3737 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3738 assert(!Opts.ObjCWeak); 3739 } else if (Opts.getGC() != LangOptions::NonGC) { 3740 Diags.Report(diag::err_objc_weak_with_gc); 3741 } else if (!Opts.ObjCWeakRuntime) { 3742 Diags.Report(diag::err_objc_weak_unsupported); 3743 } else { 3744 Opts.ObjCWeak = 1; 3745 } 3746 } else if (Opts.ObjCAutoRefCount) { 3747 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3748 } 3749 3750 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3751 Opts.ObjCSubscriptingLegacyRuntime = 3752 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3753 } 3754 3755 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3756 // Check that the version has 1 to 3 components and the minor and patch 3757 // versions fit in two decimal digits. 3758 VersionTuple GNUCVer; 3759 bool Invalid = GNUCVer.tryParse(A->getValue()); 3760 unsigned Major = GNUCVer.getMajor(); 3761 unsigned Minor = GNUCVer.getMinor().value_or(0); 3762 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3763 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3764 Diags.Report(diag::err_drv_invalid_value) 3765 << A->getAsString(Args) << A->getValue(); 3766 } 3767 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3768 } 3769 3770 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3771 Opts.IgnoreXCOFFVisibility = 1; 3772 3773 if (Args.hasArg(OPT_ftrapv)) { 3774 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3775 // Set the handler, if one is specified. 3776 Opts.OverflowHandler = 3777 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3778 } 3779 else if (Args.hasArg(OPT_fwrapv)) 3780 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3781 3782 Opts.MSCompatibilityVersion = 0; 3783 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3784 VersionTuple VT; 3785 if (VT.tryParse(A->getValue())) 3786 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3787 << A->getValue(); 3788 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3789 VT.getMinor().value_or(0) * 100000 + 3790 VT.getSubminor().value_or(0); 3791 } 3792 3793 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3794 // is specified, or -std is set to a conforming mode. 3795 // Trigraphs are disabled by default in c++1z onwards. 3796 // For z/OS, trigraphs are enabled by default (without regard to the above). 3797 Opts.Trigraphs = 3798 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3799 Opts.Trigraphs = 3800 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3801 3802 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3803 && Opts.OpenCLVersion == 200); 3804 3805 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3806 Opts.SYCLIsDevice || 3807 Args.hasArg(OPT_fconvergent_functions); 3808 3809 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3810 if (!Opts.NoBuiltin) 3811 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3812 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3813 if (A->getOption().matches(options::OPT_mlong_double_64)) 3814 Opts.LongDoubleSize = 64; 3815 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3816 Opts.LongDoubleSize = 80; 3817 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3818 Opts.LongDoubleSize = 128; 3819 else 3820 Opts.LongDoubleSize = 0; 3821 } 3822 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 3823 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3824 3825 llvm::sort(Opts.ModuleFeatures); 3826 3827 // -mrtd option 3828 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3829 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3830 Diags.Report(diag::err_drv_argument_not_allowed_with) 3831 << A->getSpelling() << "-fdefault-calling-conv"; 3832 else { 3833 if (T.getArch() != llvm::Triple::x86) 3834 Diags.Report(diag::err_drv_argument_not_allowed_with) 3835 << A->getSpelling() << T.getTriple(); 3836 else 3837 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3838 } 3839 } 3840 3841 // Check if -fopenmp is specified and set default version to 5.0. 3842 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3843 // Check if -fopenmp-simd is specified. 3844 bool IsSimdSpecified = 3845 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3846 /*Default=*/false); 3847 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3848 Opts.OpenMPUseTLS = 3849 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3850 Opts.OpenMPIsDevice = 3851 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3852 Opts.OpenMPIRBuilder = 3853 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3854 bool IsTargetSpecified = 3855 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3856 3857 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3858 3859 if (Opts.OpenMP || Opts.OpenMPSimd) { 3860 if (int Version = getLastArgIntValue( 3861 Args, OPT_fopenmp_version_EQ, 3862 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3863 Opts.OpenMP = Version; 3864 // Provide diagnostic when a given target is not expected to be an OpenMP 3865 // device or host. 3866 if (!Opts.OpenMPIsDevice) { 3867 switch (T.getArch()) { 3868 default: 3869 break; 3870 // Add unsupported host targets here: 3871 case llvm::Triple::nvptx: 3872 case llvm::Triple::nvptx64: 3873 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3874 break; 3875 } 3876 } 3877 } 3878 3879 // Set the flag to prevent the implementation from emitting device exception 3880 // handling code for those requiring so. 3881 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3882 Opts.OpenCLCPlusPlus) { 3883 3884 Opts.Exceptions = 0; 3885 Opts.CXXExceptions = 0; 3886 } 3887 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3888 Opts.OpenMPCUDANumSMs = 3889 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3890 Opts.OpenMPCUDANumSMs, Diags); 3891 Opts.OpenMPCUDABlocksPerSM = 3892 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3893 Opts.OpenMPCUDABlocksPerSM, Diags); 3894 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3895 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3896 Opts.OpenMPCUDAReductionBufNum, Diags); 3897 } 3898 3899 // Set the value of the debugging flag used in the new offloading device RTL. 3900 // Set either by a specific value or to a default if not specified. 3901 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3902 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3903 Opts.OpenMPTargetDebug = getLastArgIntValue( 3904 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3905 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3906 Opts.OpenMPTargetDebug = 1; 3907 } 3908 3909 if (Opts.OpenMPIsDevice) { 3910 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3911 Opts.OpenMPTeamSubscription = true; 3912 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3913 Opts.OpenMPThreadSubscription = true; 3914 } 3915 3916 // Get the OpenMP target triples if any. 3917 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3918 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3919 auto getArchPtrSize = [](const llvm::Triple &T) { 3920 if (T.isArch16Bit()) 3921 return Arch16Bit; 3922 if (T.isArch32Bit()) 3923 return Arch32Bit; 3924 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3925 return Arch64Bit; 3926 }; 3927 3928 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3929 llvm::Triple TT(A->getValue(i)); 3930 3931 if (TT.getArch() == llvm::Triple::UnknownArch || 3932 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3933 TT.getArch() == llvm::Triple::nvptx || 3934 TT.getArch() == llvm::Triple::nvptx64 || 3935 TT.getArch() == llvm::Triple::amdgcn || 3936 TT.getArch() == llvm::Triple::x86 || 3937 TT.getArch() == llvm::Triple::x86_64)) 3938 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3939 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3940 Diags.Report(diag::err_drv_incompatible_omp_arch) 3941 << A->getValue(i) << T.str(); 3942 else 3943 Opts.OMPTargetTriples.push_back(TT); 3944 } 3945 } 3946 3947 // Get OpenMP host file path if any and report if a non existent file is 3948 // found 3949 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3950 Opts.OMPHostIRFile = A->getValue(); 3951 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3952 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3953 << Opts.OMPHostIRFile; 3954 } 3955 3956 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3957 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3958 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3959 3960 // FIXME: Eliminate this dependency. 3961 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3962 OptSize = getOptimizationLevelSize(Args); 3963 Opts.Optimize = Opt != 0; 3964 Opts.OptimizeSize = OptSize != 0; 3965 3966 // This is the __NO_INLINE__ define, which just depends on things like the 3967 // optimization level and -fno-inline, not actually whether the backend has 3968 // inlining enabled. 3969 Opts.NoInlineDefine = !Opts.Optimize; 3970 if (Arg *InlineArg = Args.getLastArg( 3971 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3972 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3973 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3974 Opts.NoInlineDefine = true; 3975 3976 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3977 StringRef Val = A->getValue(); 3978 if (Val == "fast") 3979 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3980 else if (Val == "on") 3981 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3982 else if (Val == "off") 3983 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3984 else if (Val == "fast-honor-pragmas") 3985 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3986 else 3987 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3988 } 3989 3990 // Parse -fsanitize= arguments. 3991 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3992 Diags, Opts.Sanitize); 3993 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3994 std::vector<std::string> systemIgnorelists = 3995 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3996 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3997 systemIgnorelists.begin(), 3998 systemIgnorelists.end()); 3999 4000 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4001 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4002 4003 StringRef Ver = A->getValue(); 4004 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4005 unsigned Major, Minor = 0; 4006 4007 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4008 // y or y.0 (4 <= y <= current version). 4009 if (!VerParts.first.startswith("0") && 4010 !VerParts.first.getAsInteger(10, Major) && 4011 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4012 (Major == 3 ? VerParts.second.size() == 1 && 4013 !VerParts.second.getAsInteger(10, Minor) 4014 : VerParts.first.size() == Ver.size() || 4015 VerParts.second == "0")) { 4016 // Got a valid version number. 4017 if (Major == 3 && Minor <= 8) 4018 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4019 else if (Major <= 4) 4020 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4021 else if (Major <= 6) 4022 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4023 else if (Major <= 7) 4024 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4025 else if (Major <= 9) 4026 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4027 else if (Major <= 11) 4028 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4029 else if (Major <= 12) 4030 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4031 else if (Major <= 14) 4032 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4033 else if (Major <= 15) 4034 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4035 } else if (Ver != "latest") { 4036 Diags.Report(diag::err_drv_invalid_value) 4037 << A->getAsString(Args) << A->getValue(); 4038 } 4039 } 4040 4041 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4042 StringRef SignScope = A->getValue(); 4043 4044 if (SignScope.equals_insensitive("none")) 4045 Opts.setSignReturnAddressScope( 4046 LangOptions::SignReturnAddressScopeKind::None); 4047 else if (SignScope.equals_insensitive("all")) 4048 Opts.setSignReturnAddressScope( 4049 LangOptions::SignReturnAddressScopeKind::All); 4050 else if (SignScope.equals_insensitive("non-leaf")) 4051 Opts.setSignReturnAddressScope( 4052 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4053 else 4054 Diags.Report(diag::err_drv_invalid_value) 4055 << A->getAsString(Args) << SignScope; 4056 4057 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4058 StringRef SignKey = A->getValue(); 4059 if (!SignScope.empty() && !SignKey.empty()) { 4060 if (SignKey.equals_insensitive("a_key")) 4061 Opts.setSignReturnAddressKey( 4062 LangOptions::SignReturnAddressKeyKind::AKey); 4063 else if (SignKey.equals_insensitive("b_key")) 4064 Opts.setSignReturnAddressKey( 4065 LangOptions::SignReturnAddressKeyKind::BKey); 4066 else 4067 Diags.Report(diag::err_drv_invalid_value) 4068 << A->getAsString(Args) << SignKey; 4069 } 4070 } 4071 } 4072 4073 // The value can be empty, which indicates the system default should be used. 4074 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4075 if (!CXXABI.empty()) { 4076 if (!TargetCXXABI::isABI(CXXABI)) { 4077 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4078 } else { 4079 auto Kind = TargetCXXABI::getKind(CXXABI); 4080 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4081 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4082 else 4083 Opts.CXXABI = Kind; 4084 } 4085 } 4086 4087 Opts.RelativeCXXABIVTables = 4088 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4089 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4090 TargetCXXABI::usesRelativeVTables(T)); 4091 4092 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4093 auto Split = StringRef(A).split('='); 4094 Opts.MacroPrefixMap.insert( 4095 {std::string(Split.first), std::string(Split.second)}); 4096 } 4097 4098 Opts.UseTargetPathSeparator = 4099 !Args.getLastArg(OPT_fno_file_reproducible) && 4100 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4101 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4102 Args.getLastArg(OPT_ffile_reproducible)); 4103 4104 // Error if -mvscale-min is unbounded. 4105 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4106 unsigned VScaleMin; 4107 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4108 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4109 } 4110 4111 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4112 std::ifstream SeedFile(A->getValue(0)); 4113 4114 if (!SeedFile.is_open()) 4115 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4116 << A->getValue(0); 4117 4118 std::getline(SeedFile, Opts.RandstructSeed); 4119 } 4120 4121 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4122 Opts.RandstructSeed = A->getValue(0); 4123 4124 // Validate options for HLSL 4125 if (Opts.HLSL) { 4126 bool SupportedTarget = T.getArch() == llvm::Triple::dxil && 4127 T.getOS() == llvm::Triple::ShaderModel; 4128 if (!SupportedTarget) 4129 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4130 } 4131 4132 return Diags.getNumErrors() == NumErrorsBefore; 4133 } 4134 4135 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4136 switch (Action) { 4137 case frontend::ASTDeclList: 4138 case frontend::ASTDump: 4139 case frontend::ASTPrint: 4140 case frontend::ASTView: 4141 case frontend::EmitAssembly: 4142 case frontend::EmitBC: 4143 case frontend::EmitHTML: 4144 case frontend::EmitLLVM: 4145 case frontend::EmitLLVMOnly: 4146 case frontend::EmitCodeGenOnly: 4147 case frontend::EmitObj: 4148 case frontend::ExtractAPI: 4149 case frontend::FixIt: 4150 case frontend::GenerateModule: 4151 case frontend::GenerateModuleInterface: 4152 case frontend::GenerateHeaderUnit: 4153 case frontend::GeneratePCH: 4154 case frontend::GenerateInterfaceStubs: 4155 case frontend::ParseSyntaxOnly: 4156 case frontend::ModuleFileInfo: 4157 case frontend::VerifyPCH: 4158 case frontend::PluginAction: 4159 case frontend::RewriteObjC: 4160 case frontend::RewriteTest: 4161 case frontend::RunAnalysis: 4162 case frontend::TemplightDump: 4163 case frontend::MigrateSource: 4164 return false; 4165 4166 case frontend::DumpCompilerOptions: 4167 case frontend::DumpRawTokens: 4168 case frontend::DumpTokens: 4169 case frontend::InitOnly: 4170 case frontend::PrintPreamble: 4171 case frontend::PrintPreprocessedInput: 4172 case frontend::RewriteMacros: 4173 case frontend::RunPreprocessorOnly: 4174 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4175 return true; 4176 } 4177 llvm_unreachable("invalid frontend action"); 4178 } 4179 4180 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4181 SmallVectorImpl<const char *> &Args, 4182 CompilerInvocation::StringAllocator SA, 4183 const LangOptions &LangOpts, 4184 const FrontendOptions &FrontendOpts, 4185 const CodeGenOptions &CodeGenOpts) { 4186 PreprocessorOptions *PreprocessorOpts = &Opts; 4187 4188 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4189 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4190 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4191 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4192 MERGER, EXTRACTOR, TABLE_INDEX) \ 4193 GENERATE_OPTION_WITH_MARSHALLING( \ 4194 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4195 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4196 #include "clang/Driver/Options.inc" 4197 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4198 4199 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4200 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4201 4202 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4203 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4204 4205 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4206 GenerateArg(Args, OPT_preamble_bytes_EQ, 4207 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4208 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4209 SA); 4210 4211 for (const auto &M : Opts.Macros) { 4212 // Don't generate __CET__ macro definitions. They are implied by the 4213 // -fcf-protection option that is generated elsewhere. 4214 if (M.first == "__CET__=1" && !M.second && 4215 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4216 continue; 4217 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4218 !CodeGenOpts.CFProtectionBranch) 4219 continue; 4220 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4221 CodeGenOpts.CFProtectionBranch) 4222 continue; 4223 4224 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4225 } 4226 4227 for (const auto &I : Opts.Includes) { 4228 // Don't generate OpenCL includes. They are implied by other flags that are 4229 // generated elsewhere. 4230 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4231 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4232 I == "opencl-c.h")) 4233 continue; 4234 // Don't generate HLSL includes. They are implied by other flags that are 4235 // generated elsewhere. 4236 if (LangOpts.HLSL && I == "hlsl.h") 4237 continue; 4238 4239 GenerateArg(Args, OPT_include, I, SA); 4240 } 4241 4242 for (const auto &CI : Opts.ChainedIncludes) 4243 GenerateArg(Args, OPT_chain_include, CI, SA); 4244 4245 for (const auto &RF : Opts.RemappedFiles) 4246 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4247 4248 if (Opts.SourceDateEpoch) 4249 GenerateArg(Args, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch), SA); 4250 4251 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4252 // generated elsewhere. 4253 } 4254 4255 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4256 DiagnosticsEngine &Diags, 4257 frontend::ActionKind Action, 4258 const FrontendOptions &FrontendOpts) { 4259 unsigned NumErrorsBefore = Diags.getNumErrors(); 4260 4261 PreprocessorOptions *PreprocessorOpts = &Opts; 4262 4263 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4264 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4265 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4266 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4267 MERGER, EXTRACTOR, TABLE_INDEX) \ 4268 PARSE_OPTION_WITH_MARSHALLING( \ 4269 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4270 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4271 #include "clang/Driver/Options.inc" 4272 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4273 4274 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4275 Args.hasArg(OPT_pch_through_hdrstop_use); 4276 4277 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4278 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4279 4280 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4281 StringRef Value(A->getValue()); 4282 size_t Comma = Value.find(','); 4283 unsigned Bytes = 0; 4284 unsigned EndOfLine = 0; 4285 4286 if (Comma == StringRef::npos || 4287 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4288 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4289 Diags.Report(diag::err_drv_preamble_format); 4290 else { 4291 Opts.PrecompiledPreambleBytes.first = Bytes; 4292 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4293 } 4294 } 4295 4296 // Add the __CET__ macro if a CFProtection option is set. 4297 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4298 StringRef Name = A->getValue(); 4299 if (Name == "branch") 4300 Opts.addMacroDef("__CET__=1"); 4301 else if (Name == "return") 4302 Opts.addMacroDef("__CET__=2"); 4303 else if (Name == "full") 4304 Opts.addMacroDef("__CET__=3"); 4305 } 4306 4307 // Add macros from the command line. 4308 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4309 if (A->getOption().matches(OPT_D)) 4310 Opts.addMacroDef(A->getValue()); 4311 else 4312 Opts.addMacroUndef(A->getValue()); 4313 } 4314 4315 // Add the ordered list of -includes. 4316 for (const auto *A : Args.filtered(OPT_include)) 4317 Opts.Includes.emplace_back(A->getValue()); 4318 4319 for (const auto *A : Args.filtered(OPT_chain_include)) 4320 Opts.ChainedIncludes.emplace_back(A->getValue()); 4321 4322 for (const auto *A : Args.filtered(OPT_remap_file)) { 4323 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4324 4325 if (Split.second.empty()) { 4326 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4327 continue; 4328 } 4329 4330 Opts.addRemappedFile(Split.first, Split.second); 4331 } 4332 4333 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4334 StringRef Epoch = A->getValue(); 4335 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4336 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4337 // 9999-12-31T23:59:59Z) as the upper bound. 4338 const uint64_t MaxTimestamp = 4339 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4340 uint64_t V; 4341 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4342 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4343 << Epoch << MaxTimestamp; 4344 } else { 4345 Opts.SourceDateEpoch = V; 4346 } 4347 } 4348 4349 // Always avoid lexing editor placeholders when we're just running the 4350 // preprocessor as we never want to emit the 4351 // "editor placeholder in source file" error in PP only mode. 4352 if (isStrictlyPreprocessorAction(Action)) 4353 Opts.LexEditorPlaceholders = false; 4354 4355 return Diags.getNumErrors() == NumErrorsBefore; 4356 } 4357 4358 static void GeneratePreprocessorOutputArgs( 4359 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4360 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4361 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4362 4363 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4364 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4365 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4366 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4367 MERGER, EXTRACTOR, TABLE_INDEX) \ 4368 GENERATE_OPTION_WITH_MARSHALLING( \ 4369 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4370 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4371 #include "clang/Driver/Options.inc" 4372 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4373 4374 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4375 if (Generate_dM) 4376 GenerateArg(Args, OPT_dM, SA); 4377 if (!Generate_dM && Opts.ShowMacros) 4378 GenerateArg(Args, OPT_dD, SA); 4379 if (Opts.DirectivesOnly) 4380 GenerateArg(Args, OPT_fdirectives_only, SA); 4381 } 4382 4383 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4384 ArgList &Args, DiagnosticsEngine &Diags, 4385 frontend::ActionKind Action) { 4386 unsigned NumErrorsBefore = Diags.getNumErrors(); 4387 4388 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4389 4390 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4391 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4392 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4393 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4394 MERGER, EXTRACTOR, TABLE_INDEX) \ 4395 PARSE_OPTION_WITH_MARSHALLING( \ 4396 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4397 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4398 #include "clang/Driver/Options.inc" 4399 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4400 4401 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4402 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4403 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4404 4405 return Diags.getNumErrors() == NumErrorsBefore; 4406 } 4407 4408 static void GenerateTargetArgs(const TargetOptions &Opts, 4409 SmallVectorImpl<const char *> &Args, 4410 CompilerInvocation::StringAllocator SA) { 4411 const TargetOptions *TargetOpts = &Opts; 4412 #define TARGET_OPTION_WITH_MARSHALLING( \ 4413 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4414 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4415 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4416 MERGER, EXTRACTOR, TABLE_INDEX) \ 4417 GENERATE_OPTION_WITH_MARSHALLING( \ 4418 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4419 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4420 #include "clang/Driver/Options.inc" 4421 #undef TARGET_OPTION_WITH_MARSHALLING 4422 4423 if (!Opts.SDKVersion.empty()) 4424 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4425 SA); 4426 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4427 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4428 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4429 } 4430 4431 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4432 DiagnosticsEngine &Diags) { 4433 unsigned NumErrorsBefore = Diags.getNumErrors(); 4434 4435 TargetOptions *TargetOpts = &Opts; 4436 4437 #define TARGET_OPTION_WITH_MARSHALLING( \ 4438 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4439 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4440 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4441 MERGER, EXTRACTOR, TABLE_INDEX) \ 4442 PARSE_OPTION_WITH_MARSHALLING( \ 4443 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4444 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4445 #include "clang/Driver/Options.inc" 4446 #undef TARGET_OPTION_WITH_MARSHALLING 4447 4448 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4449 llvm::VersionTuple Version; 4450 if (Version.tryParse(A->getValue())) 4451 Diags.Report(diag::err_drv_invalid_value) 4452 << A->getAsString(Args) << A->getValue(); 4453 else 4454 Opts.SDKVersion = Version; 4455 } 4456 if (Arg *A = 4457 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4458 llvm::VersionTuple Version; 4459 if (Version.tryParse(A->getValue())) 4460 Diags.Report(diag::err_drv_invalid_value) 4461 << A->getAsString(Args) << A->getValue(); 4462 else 4463 Opts.DarwinTargetVariantSDKVersion = Version; 4464 } 4465 4466 return Diags.getNumErrors() == NumErrorsBefore; 4467 } 4468 4469 bool CompilerInvocation::CreateFromArgsImpl( 4470 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4471 DiagnosticsEngine &Diags, const char *Argv0) { 4472 unsigned NumErrorsBefore = Diags.getNumErrors(); 4473 4474 // Parse the arguments. 4475 const OptTable &Opts = getDriverOptTable(); 4476 const unsigned IncludedFlagsBitmask = options::CC1Option; 4477 unsigned MissingArgIndex, MissingArgCount; 4478 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4479 MissingArgCount, IncludedFlagsBitmask); 4480 LangOptions &LangOpts = *Res.getLangOpts(); 4481 4482 // Check for missing argument error. 4483 if (MissingArgCount) 4484 Diags.Report(diag::err_drv_missing_argument) 4485 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4486 4487 // Issue errors on unknown arguments. 4488 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4489 auto ArgString = A->getAsString(Args); 4490 std::string Nearest; 4491 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4492 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4493 else 4494 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4495 << ArgString << Nearest; 4496 } 4497 4498 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4499 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4500 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4501 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4502 /*DefaultDiagColor=*/false); 4503 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4504 // FIXME: We shouldn't have to pass the DashX option around here 4505 InputKind DashX = Res.getFrontendOpts().DashX; 4506 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4507 llvm::Triple T(Res.getTargetOpts().Triple); 4508 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4509 Res.getFileSystemOpts().WorkingDir); 4510 4511 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4512 Diags); 4513 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4514 LangOpts.ObjCExceptions = 1; 4515 4516 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4517 if (Warning == "misexpect" && 4518 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4519 Res.getCodeGenOpts().MisExpect = true; 4520 } 4521 } 4522 4523 if (LangOpts.CUDA) { 4524 // During CUDA device-side compilation, the aux triple is the 4525 // triple used for host compilation. 4526 if (LangOpts.CUDAIsDevice) 4527 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4528 } 4529 4530 // Set the triple of the host for OpenMP device compile. 4531 if (LangOpts.OpenMPIsDevice) 4532 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4533 4534 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4535 Res.getFrontendOpts().OutputFile, LangOpts); 4536 4537 // FIXME: Override value name discarding when asan or msan is used because the 4538 // backend passes depend on the name of the alloca in order to print out 4539 // names. 4540 Res.getCodeGenOpts().DiscardValueNames &= 4541 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4542 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4543 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4544 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4545 4546 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4547 Res.getFrontendOpts().ProgramAction, 4548 Res.getFrontendOpts()); 4549 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4550 Res.getFrontendOpts().ProgramAction); 4551 4552 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4553 Res.getFrontendOpts().ProgramAction, 4554 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4555 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4556 Res.getDependencyOutputOpts().Targets.empty()) 4557 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4558 4559 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4560 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4561 !Res.getLangOpts()->Sanitize.empty()) { 4562 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4563 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4564 } 4565 4566 // Store the command-line for using in the CodeView backend. 4567 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4568 Res.getCodeGenOpts().Argv0 = Argv0; 4569 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4570 } 4571 4572 FixupInvocation(Res, Diags, Args, DashX); 4573 4574 return Diags.getNumErrors() == NumErrorsBefore; 4575 } 4576 4577 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4578 ArrayRef<const char *> CommandLineArgs, 4579 DiagnosticsEngine &Diags, 4580 const char *Argv0) { 4581 CompilerInvocation DummyInvocation; 4582 4583 return RoundTrip( 4584 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4585 DiagnosticsEngine &Diags, const char *Argv0) { 4586 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4587 }, 4588 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4589 StringAllocator SA) { 4590 Args.push_back("-cc1"); 4591 Invocation.generateCC1CommandLine(Args, SA); 4592 }, 4593 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4594 } 4595 4596 std::string CompilerInvocation::getModuleHash() const { 4597 // FIXME: Consider using SHA1 instead of MD5. 4598 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4599 4600 // Note: For QoI reasons, the things we use as a hash here should all be 4601 // dumped via the -module-info flag. 4602 4603 // Start the signature with the compiler version. 4604 HBuilder.add(getClangFullRepositoryVersion()); 4605 4606 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4607 // and getClangFullRepositoryVersion() doesn't include git revision. 4608 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4609 4610 // Extend the signature with the language options 4611 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4612 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4613 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4614 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4615 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4616 #include "clang/Basic/LangOptions.def" 4617 4618 HBuilder.addRange(LangOpts->ModuleFeatures); 4619 4620 HBuilder.add(LangOpts->ObjCRuntime); 4621 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4622 4623 // Extend the signature with the target options. 4624 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4625 TargetOpts->ABI); 4626 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4627 4628 // Extend the signature with preprocessor options. 4629 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4630 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4631 4632 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4633 for (const auto &Macro : getPreprocessorOpts().Macros) { 4634 // If we're supposed to ignore this macro for the purposes of modules, 4635 // don't put it into the hash. 4636 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4637 // Check whether we're ignoring this macro. 4638 StringRef MacroDef = Macro.first; 4639 if (hsOpts.ModulesIgnoreMacros.count( 4640 llvm::CachedHashString(MacroDef.split('=').first))) 4641 continue; 4642 } 4643 4644 HBuilder.add(Macro); 4645 } 4646 4647 // Extend the signature with the sysroot and other header search options. 4648 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4649 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4650 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4651 hsOpts.ModulesValidateDiagnosticOptions); 4652 HBuilder.add(hsOpts.ResourceDir); 4653 4654 if (hsOpts.ModulesStrictContextHash) { 4655 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4656 HBuilder.addRange(hsOpts.UserEntries); 4657 4658 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4659 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4660 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4661 HBuilder.add(diagOpts.get##Name()); 4662 #include "clang/Basic/DiagnosticOptions.def" 4663 #undef DIAGOPT 4664 #undef ENUM_DIAGOPT 4665 } 4666 4667 // Extend the signature with the user build path. 4668 HBuilder.add(hsOpts.ModuleUserBuildPath); 4669 4670 // Extend the signature with the module file extensions. 4671 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4672 ext->hashExtension(HBuilder); 4673 4674 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4675 // affects the debug info in the PCM. 4676 if (getCodeGenOpts().DebugTypeExtRefs) 4677 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4678 4679 // Extend the signature with the enabled sanitizers, if at least one is 4680 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4681 SanitizerSet SanHash = LangOpts->Sanitize; 4682 SanHash.clear(getPPTransparentSanitizers()); 4683 if (!SanHash.empty()) 4684 HBuilder.add(SanHash.Mask); 4685 4686 llvm::MD5::MD5Result Result; 4687 HBuilder.getHasher().final(Result); 4688 uint64_t Hash = Result.high() ^ Result.low(); 4689 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4690 } 4691 4692 void CompilerInvocation::generateCC1CommandLine( 4693 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4694 llvm::Triple T(TargetOpts->Triple); 4695 4696 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4697 GenerateMigratorArgs(MigratorOpts, Args, SA); 4698 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4699 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4700 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4701 GenerateTargetArgs(*TargetOpts, Args, SA); 4702 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4703 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4704 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4705 &*LangOpts); 4706 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4707 CodeGenOpts); 4708 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4709 FrontendOpts.ProgramAction); 4710 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4711 } 4712 4713 std::vector<std::string> CompilerInvocation::getCC1CommandLine() const { 4714 // Set up string allocator. 4715 llvm::BumpPtrAllocator Alloc; 4716 llvm::StringSaver Strings(Alloc); 4717 auto SA = [&Strings](const Twine &Arg) { return Strings.save(Arg).data(); }; 4718 4719 // Synthesize full command line from the CompilerInvocation, including "-cc1". 4720 SmallVector<const char *, 32> Args{"-cc1"}; 4721 generateCC1CommandLine(Args, SA); 4722 4723 // Convert arguments to the return type. 4724 return std::vector<std::string>{Args.begin(), Args.end()}; 4725 } 4726 4727 void CompilerInvocation::resetNonModularOptions() { 4728 getLangOpts()->resetNonModularOptions(); 4729 getPreprocessorOpts().resetNonModularOptions(); 4730 } 4731 4732 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4733 getLangOpts()->ImplicitModules = false; 4734 getHeaderSearchOpts().ImplicitModuleMaps = false; 4735 getHeaderSearchOpts().ModuleCachePath.clear(); 4736 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4737 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4738 // The specific values we canonicalize to for pruning don't affect behaviour, 4739 /// so use the default values so they may be dropped from the command-line. 4740 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4741 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 4742 } 4743 4744 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4745 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4746 DiagnosticsEngine &Diags) { 4747 return createVFSFromCompilerInvocation(CI, Diags, 4748 llvm::vfs::getRealFileSystem()); 4749 } 4750 4751 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4752 clang::createVFSFromCompilerInvocation( 4753 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4754 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4755 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 4756 Diags, std::move(BaseFS)); 4757 } 4758 4759 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 4760 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 4761 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4762 if (VFSOverlayFiles.empty()) 4763 return BaseFS; 4764 4765 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4766 // earlier vfs files are on the bottom 4767 for (const auto &File : VFSOverlayFiles) { 4768 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4769 Result->getBufferForFile(File); 4770 if (!Buffer) { 4771 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4772 continue; 4773 } 4774 4775 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4776 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4777 /*DiagContext*/ nullptr, Result); 4778 if (!FS) { 4779 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4780 continue; 4781 } 4782 4783 Result = FS; 4784 } 4785 return Result; 4786 } 4787