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/STLExtras.h" 56 #include "llvm/ADT/SmallString.h" 57 #include "llvm/ADT/SmallVector.h" 58 #include "llvm/ADT/StringRef.h" 59 #include "llvm/ADT/StringSwitch.h" 60 #include "llvm/ADT/Triple.h" 61 #include "llvm/ADT/Twine.h" 62 #include "llvm/Config/llvm-config.h" 63 #include "llvm/IR/DebugInfoMetadata.h" 64 #include "llvm/Linker/Linker.h" 65 #include "llvm/MC/MCTargetOptions.h" 66 #include "llvm/Option/Arg.h" 67 #include "llvm/Option/ArgList.h" 68 #include "llvm/Option/OptSpecifier.h" 69 #include "llvm/Option/OptTable.h" 70 #include "llvm/Option/Option.h" 71 #include "llvm/ProfileData/InstrProfReader.h" 72 #include "llvm/Remarks/HotnessThresholdParser.h" 73 #include "llvm/Support/CodeGen.h" 74 #include "llvm/Support/Compiler.h" 75 #include "llvm/Support/Error.h" 76 #include "llvm/Support/ErrorHandling.h" 77 #include "llvm/Support/ErrorOr.h" 78 #include "llvm/Support/FileSystem.h" 79 #include "llvm/Support/HashBuilder.h" 80 #include "llvm/Support/Host.h" 81 #include "llvm/Support/MathExtras.h" 82 #include "llvm/Support/MemoryBuffer.h" 83 #include "llvm/Support/Path.h" 84 #include "llvm/Support/Process.h" 85 #include "llvm/Support/Regex.h" 86 #include "llvm/Support/VersionTuple.h" 87 #include "llvm/Support/VirtualFileSystem.h" 88 #include "llvm/Support/raw_ostream.h" 89 #include "llvm/Target/TargetOptions.h" 90 #include <algorithm> 91 #include <atomic> 92 #include <cassert> 93 #include <cstddef> 94 #include <cstring> 95 #include <ctime> 96 #include <fstream> 97 #include <limits> 98 #include <memory> 99 #include <optional> 100 #include <string> 101 #include <tuple> 102 #include <type_traits> 103 #include <utility> 104 #include <vector> 105 106 using namespace clang; 107 using namespace driver; 108 using namespace options; 109 using namespace llvm::opt; 110 111 //===----------------------------------------------------------------------===// 112 // Helpers. 113 //===----------------------------------------------------------------------===// 114 115 // Parse misexpect tolerance argument value. 116 // Valid option values are integers in the range [0, 100) 117 static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) { 118 uint32_t Val; 119 if (Arg.getAsInteger(10, Val)) 120 return llvm::createStringError(llvm::inconvertibleErrorCode(), 121 "Not an integer: %s", Arg.data()); 122 return Val; 123 } 124 125 //===----------------------------------------------------------------------===// 126 // Initialization. 127 //===----------------------------------------------------------------------===// 128 129 CompilerInvocationRefBase::CompilerInvocationRefBase() 130 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 131 DiagnosticOpts(new DiagnosticOptions()), 132 HeaderSearchOpts(new HeaderSearchOptions()), 133 PreprocessorOpts(new PreprocessorOptions()), 134 AnalyzerOpts(new AnalyzerOptions()) {} 135 136 CompilerInvocationRefBase::CompilerInvocationRefBase( 137 const CompilerInvocationRefBase &X) 138 : LangOpts(new LangOptions(*X.getLangOpts())), 139 TargetOpts(new TargetOptions(X.getTargetOpts())), 140 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 141 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 142 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 143 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 144 145 CompilerInvocationRefBase::CompilerInvocationRefBase( 146 CompilerInvocationRefBase &&X) = default; 147 148 CompilerInvocationRefBase & 149 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 150 LangOpts.swap(X.LangOpts); 151 TargetOpts.swap(X.TargetOpts); 152 DiagnosticOpts.swap(X.DiagnosticOpts); 153 HeaderSearchOpts.swap(X.HeaderSearchOpts); 154 PreprocessorOpts.swap(X.PreprocessorOpts); 155 AnalyzerOpts.swap(X.AnalyzerOpts); 156 return *this; 157 } 158 159 CompilerInvocationRefBase & 160 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 161 162 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 163 164 //===----------------------------------------------------------------------===// 165 // Normalizers 166 //===----------------------------------------------------------------------===// 167 168 #define SIMPLE_ENUM_VALUE_TABLE 169 #include "clang/Driver/Options.inc" 170 #undef SIMPLE_ENUM_VALUE_TABLE 171 172 static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 173 unsigned TableIndex, 174 const ArgList &Args, 175 DiagnosticsEngine &Diags) { 176 if (Args.hasArg(Opt)) 177 return true; 178 return std::nullopt; 179 } 180 181 static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, 182 unsigned, 183 const ArgList &Args, 184 DiagnosticsEngine &) { 185 if (Args.hasArg(Opt)) 186 return false; 187 return std::nullopt; 188 } 189 190 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 191 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 192 /// unnecessary template instantiations and just ignore it with a variadic 193 /// argument. 194 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 195 const char *Spelling, 196 CompilerInvocation::StringAllocator, 197 Option::OptionClass, unsigned, /*T*/...) { 198 Args.push_back(Spelling); 199 } 200 201 template <typename T> static constexpr bool is_uint64_t_convertible() { 202 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 203 } 204 205 template <typename T, 206 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 207 static auto makeFlagToValueNormalizer(T Value) { 208 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 209 DiagnosticsEngine &) -> std::optional<T> { 210 if (Args.hasArg(Opt)) 211 return Value; 212 return std::nullopt; 213 }; 214 } 215 216 template <typename T, 217 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 218 static auto makeFlagToValueNormalizer(T Value) { 219 return makeFlagToValueNormalizer(uint64_t(Value)); 220 } 221 222 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 223 OptSpecifier OtherOpt) { 224 return [Value, OtherValue, 225 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args, 226 DiagnosticsEngine &) -> std::optional<bool> { 227 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 228 return A->getOption().matches(Opt) ? Value : OtherValue; 229 } 230 return std::nullopt; 231 }; 232 } 233 234 static auto makeBooleanOptionDenormalizer(bool Value) { 235 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 236 CompilerInvocation::StringAllocator, Option::OptionClass, 237 unsigned, bool KeyPath) { 238 if (KeyPath == Value) 239 Args.push_back(Spelling); 240 }; 241 } 242 243 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 244 const char *Spelling, 245 CompilerInvocation::StringAllocator SA, 246 Option::OptionClass OptClass, unsigned, 247 const Twine &Value) { 248 switch (OptClass) { 249 case Option::SeparateClass: 250 case Option::JoinedOrSeparateClass: 251 case Option::JoinedAndSeparateClass: 252 Args.push_back(Spelling); 253 Args.push_back(SA(Value)); 254 break; 255 case Option::JoinedClass: 256 case Option::CommaJoinedClass: 257 Args.push_back(SA(Twine(Spelling) + Value)); 258 break; 259 default: 260 llvm_unreachable("Cannot denormalize an option with option class " 261 "incompatible with string denormalization."); 262 } 263 } 264 265 template <typename T> 266 static void 267 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 268 CompilerInvocation::StringAllocator SA, 269 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 270 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 271 } 272 273 static std::optional<SimpleEnumValue> 274 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 275 for (int I = 0, E = Table.Size; I != E; ++I) 276 if (Name == Table.Table[I].Name) 277 return Table.Table[I]; 278 279 return std::nullopt; 280 } 281 282 static std::optional<SimpleEnumValue> 283 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 284 for (int I = 0, E = Table.Size; I != E; ++I) 285 if (Value == Table.Table[I].Value) 286 return Table.Table[I]; 287 288 return std::nullopt; 289 } 290 291 static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 292 unsigned TableIndex, 293 const ArgList &Args, 294 DiagnosticsEngine &Diags) { 295 assert(TableIndex < SimpleEnumValueTablesSize); 296 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 297 298 auto *Arg = Args.getLastArg(Opt); 299 if (!Arg) 300 return std::nullopt; 301 302 StringRef ArgValue = Arg->getValue(); 303 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 304 return MaybeEnumVal->Value; 305 306 Diags.Report(diag::err_drv_invalid_value) 307 << Arg->getAsString(Args) << ArgValue; 308 return std::nullopt; 309 } 310 311 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 312 const char *Spelling, 313 CompilerInvocation::StringAllocator SA, 314 Option::OptionClass OptClass, 315 unsigned TableIndex, unsigned Value) { 316 assert(TableIndex < SimpleEnumValueTablesSize); 317 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 318 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 319 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 320 MaybeEnumVal->Name); 321 } else { 322 llvm_unreachable("The simple enum value was not correctly defined in " 323 "the tablegen option description"); 324 } 325 } 326 327 template <typename T> 328 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 329 const char *Spelling, 330 CompilerInvocation::StringAllocator SA, 331 Option::OptionClass OptClass, 332 unsigned TableIndex, T Value) { 333 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 334 static_cast<unsigned>(Value)); 335 } 336 337 static std::optional<std::string> normalizeString(OptSpecifier Opt, 338 int TableIndex, 339 const ArgList &Args, 340 DiagnosticsEngine &Diags) { 341 auto *Arg = Args.getLastArg(Opt); 342 if (!Arg) 343 return std::nullopt; 344 return std::string(Arg->getValue()); 345 } 346 347 template <typename IntTy> 348 static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 349 const ArgList &Args, 350 DiagnosticsEngine &Diags) { 351 auto *Arg = Args.getLastArg(Opt); 352 if (!Arg) 353 return std::nullopt; 354 IntTy Res; 355 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 356 Diags.Report(diag::err_drv_invalid_int_value) 357 << Arg->getAsString(Args) << Arg->getValue(); 358 return std::nullopt; 359 } 360 return Res; 361 } 362 363 static std::optional<std::vector<std::string>> 364 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 365 DiagnosticsEngine &) { 366 return Args.getAllArgValues(Opt); 367 } 368 369 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 370 const char *Spelling, 371 CompilerInvocation::StringAllocator SA, 372 Option::OptionClass OptClass, 373 unsigned TableIndex, 374 const std::vector<std::string> &Values) { 375 switch (OptClass) { 376 case Option::CommaJoinedClass: { 377 std::string CommaJoinedValue; 378 if (!Values.empty()) { 379 CommaJoinedValue.append(Values.front()); 380 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 381 CommaJoinedValue.append(","); 382 CommaJoinedValue.append(Value); 383 } 384 } 385 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 386 TableIndex, CommaJoinedValue); 387 break; 388 } 389 case Option::JoinedClass: 390 case Option::SeparateClass: 391 case Option::JoinedOrSeparateClass: 392 for (const std::string &Value : Values) 393 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 394 break; 395 default: 396 llvm_unreachable("Cannot denormalize an option with option class " 397 "incompatible with string vector denormalization."); 398 } 399 } 400 401 static std::optional<std::string> normalizeTriple(OptSpecifier Opt, 402 int TableIndex, 403 const ArgList &Args, 404 DiagnosticsEngine &Diags) { 405 auto *Arg = Args.getLastArg(Opt); 406 if (!Arg) 407 return std::nullopt; 408 return llvm::Triple::normalize(Arg->getValue()); 409 } 410 411 template <typename T, typename U> 412 static T mergeForwardValue(T KeyPath, U Value) { 413 return static_cast<T>(Value); 414 } 415 416 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 417 return KeyPath | Value; 418 } 419 420 template <typename T> static T extractForwardValue(T KeyPath) { 421 return KeyPath; 422 } 423 424 template <typename T, typename U, U Value> 425 static T extractMaskValue(T KeyPath) { 426 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 427 } 428 429 #define PARSE_OPTION_WITH_MARSHALLING( \ 430 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 431 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 432 if ((FLAGS)&options::CC1Option) { \ 433 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 434 if (IMPLIED_CHECK) \ 435 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 436 if (SHOULD_PARSE) \ 437 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 438 KEYPATH = \ 439 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 440 } 441 442 // Capture the extracted value as a lambda argument to avoid potential issues 443 // with lifetime extension of the reference. 444 #define GENERATE_OPTION_WITH_MARSHALLING( \ 445 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 446 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 447 TABLE_INDEX) \ 448 if ((FLAGS)&options::CC1Option) { \ 449 [&](const auto &Extracted) { \ 450 if (ALWAYS_EMIT || \ 451 (Extracted != \ 452 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 453 : (DEFAULT_VALUE)))) \ 454 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 455 TABLE_INDEX, Extracted); \ 456 }(EXTRACTOR(KEYPATH)); \ 457 } 458 459 static StringRef GetInputKindName(InputKind IK); 460 461 static bool FixupInvocation(CompilerInvocation &Invocation, 462 DiagnosticsEngine &Diags, const ArgList &Args, 463 InputKind IK) { 464 unsigned NumErrorsBefore = Diags.getNumErrors(); 465 466 LangOptions &LangOpts = *Invocation.getLangOpts(); 467 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 468 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 469 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 470 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 471 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 472 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 473 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 474 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 475 if (FrontendOpts.ShowStats) 476 CodeGenOpts.ClearASTBeforeBackend = false; 477 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 478 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 479 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 480 LangOpts.CurrentModule = LangOpts.ModuleName; 481 482 llvm::Triple T(TargetOpts.Triple); 483 llvm::Triple::ArchType Arch = T.getArch(); 484 485 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 486 487 if (LangOpts.getExceptionHandling() != 488 LangOptions::ExceptionHandlingKind::None && 489 T.isWindowsMSVCEnvironment()) 490 Diags.Report(diag::err_fe_invalid_exception_model) 491 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 492 493 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 494 Diags.Report(diag::warn_c_kext); 495 496 if (LangOpts.NewAlignOverride && 497 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 498 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 499 Diags.Report(diag::err_fe_invalid_alignment) 500 << A->getAsString(Args) << A->getValue(); 501 LangOpts.NewAlignOverride = 0; 502 } 503 504 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 505 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 506 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 507 << "-fsycl-is-host"; 508 509 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 510 Diags.Report(diag::err_drv_argument_not_allowed_with) 511 << "-fgnu89-inline" << GetInputKindName(IK); 512 513 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 514 Diags.Report(diag::err_drv_argument_not_allowed_with) 515 << "-hlsl-entry" << GetInputKindName(IK); 516 517 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 518 Diags.Report(diag::warn_ignored_hip_only_option) 519 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 520 521 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 522 Diags.Report(diag::warn_ignored_hip_only_option) 523 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 524 525 // When these options are used, the compiler is allowed to apply 526 // optimizations that may affect the final result. For example 527 // (x+y)+z is transformed to x+(y+z) but may not give the same 528 // final result; it's not value safe. 529 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 530 // or NaN. Final result may then differ. An error is issued when the eval 531 // method is set with one of these options. 532 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 533 if (LangOpts.ApproxFunc) 534 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 535 if (LangOpts.AllowFPReassoc) 536 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 537 if (LangOpts.AllowRecip) 538 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 539 } 540 541 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 542 // This option should be deprecated for CL > 1.0 because 543 // this option was added for compatibility with OpenCL 1.0. 544 if (Args.getLastArg(OPT_cl_strict_aliasing) && 545 (LangOpts.getOpenCLCompatibleVersion() > 100)) 546 Diags.Report(diag::warn_option_invalid_ocl_version) 547 << LangOpts.getOpenCLVersionString() 548 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 549 550 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 551 auto DefaultCC = LangOpts.getDefaultCallingConv(); 552 553 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 554 DefaultCC == LangOptions::DCC_StdCall) && 555 Arch != llvm::Triple::x86; 556 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 557 DefaultCC == LangOptions::DCC_RegCall) && 558 !T.isX86(); 559 if (emitError) 560 Diags.Report(diag::err_drv_argument_not_allowed_with) 561 << A->getSpelling() << T.getTriple(); 562 } 563 564 return Diags.getNumErrors() == NumErrorsBefore; 565 } 566 567 //===----------------------------------------------------------------------===// 568 // Deserialization (from args) 569 //===----------------------------------------------------------------------===// 570 571 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 572 DiagnosticsEngine &Diags) { 573 unsigned DefaultOpt = llvm::CodeGenOpt::None; 574 if ((IK.getLanguage() == Language::OpenCL || 575 IK.getLanguage() == Language::OpenCLCXX) && 576 !Args.hasArg(OPT_cl_opt_disable)) 577 DefaultOpt = llvm::CodeGenOpt::Default; 578 579 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 580 if (A->getOption().matches(options::OPT_O0)) 581 return llvm::CodeGenOpt::None; 582 583 if (A->getOption().matches(options::OPT_Ofast)) 584 return llvm::CodeGenOpt::Aggressive; 585 586 assert(A->getOption().matches(options::OPT_O)); 587 588 StringRef S(A->getValue()); 589 if (S == "s" || S == "z") 590 return llvm::CodeGenOpt::Default; 591 592 if (S == "g") 593 return llvm::CodeGenOpt::Less; 594 595 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 596 } 597 598 return DefaultOpt; 599 } 600 601 static unsigned getOptimizationLevelSize(ArgList &Args) { 602 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 603 if (A->getOption().matches(options::OPT_O)) { 604 switch (A->getValue()[0]) { 605 default: 606 return 0; 607 case 's': 608 return 1; 609 case 'z': 610 return 2; 611 } 612 } 613 } 614 return 0; 615 } 616 617 static void GenerateArg(SmallVectorImpl<const char *> &Args, 618 llvm::opt::OptSpecifier OptSpecifier, 619 CompilerInvocation::StringAllocator SA) { 620 Option Opt = getDriverOptTable().getOption(OptSpecifier); 621 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 622 Option::OptionClass::FlagClass, 0); 623 } 624 625 static void GenerateArg(SmallVectorImpl<const char *> &Args, 626 llvm::opt::OptSpecifier OptSpecifier, 627 const Twine &Value, 628 CompilerInvocation::StringAllocator SA) { 629 Option Opt = getDriverOptTable().getOption(OptSpecifier); 630 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 631 Opt.getKind(), 0, Value); 632 } 633 634 // Parse command line arguments into CompilerInvocation. 635 using ParseFn = 636 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 637 DiagnosticsEngine &, const char *)>; 638 639 // Generate command line arguments from CompilerInvocation. 640 using GenerateFn = llvm::function_ref<void( 641 CompilerInvocation &, SmallVectorImpl<const char *> &, 642 CompilerInvocation::StringAllocator)>; 643 644 // May perform round-trip of command line arguments. By default, the round-trip 645 // is enabled in assert builds. This can be overwritten at run-time via the 646 // "-round-trip-args" and "-no-round-trip-args" command line flags. 647 // During round-trip, the command line arguments are parsed into a dummy 648 // instance of CompilerInvocation which is used to generate the command line 649 // arguments again. The real CompilerInvocation instance is then created by 650 // parsing the generated arguments, not the original ones. 651 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 652 CompilerInvocation &RealInvocation, 653 CompilerInvocation &DummyInvocation, 654 ArrayRef<const char *> CommandLineArgs, 655 DiagnosticsEngine &Diags, const char *Argv0) { 656 #ifndef NDEBUG 657 bool DoRoundTripDefault = true; 658 #else 659 bool DoRoundTripDefault = false; 660 #endif 661 662 bool DoRoundTrip = DoRoundTripDefault; 663 for (const auto *Arg : CommandLineArgs) { 664 if (Arg == StringRef("-round-trip-args")) 665 DoRoundTrip = true; 666 if (Arg == StringRef("-no-round-trip-args")) 667 DoRoundTrip = false; 668 } 669 670 // If round-trip was not requested, simply run the parser with the real 671 // invocation diagnostics. 672 if (!DoRoundTrip) 673 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 674 675 // Serializes quoted (and potentially escaped) arguments. 676 auto SerializeArgs = [](ArrayRef<const char *> Args) { 677 std::string Buffer; 678 llvm::raw_string_ostream OS(Buffer); 679 for (const char *Arg : Args) { 680 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 681 OS << ' '; 682 } 683 OS.flush(); 684 return Buffer; 685 }; 686 687 // Setup a dummy DiagnosticsEngine. 688 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 689 DummyDiags.setClient(new TextDiagnosticBuffer()); 690 691 // Run the first parse on the original arguments with the dummy invocation and 692 // diagnostics. 693 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 694 DummyDiags.getNumWarnings() != 0) { 695 // If the first parse did not succeed, it must be user mistake (invalid 696 // command line arguments). We won't be able to generate arguments that 697 // would reproduce the same result. Let's fail again with the real 698 // invocation and diagnostics, so all side-effects of parsing are visible. 699 unsigned NumWarningsBefore = Diags.getNumWarnings(); 700 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 701 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 702 return Success; 703 704 // Parse with original options and diagnostics succeeded even though it 705 // shouldn't have. Something is off. 706 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 707 Diags.Report(diag::note_cc1_round_trip_original) 708 << SerializeArgs(CommandLineArgs); 709 return false; 710 } 711 712 // Setup string allocator. 713 llvm::BumpPtrAllocator Alloc; 714 llvm::StringSaver StringPool(Alloc); 715 auto SA = [&StringPool](const Twine &Arg) { 716 return StringPool.save(Arg).data(); 717 }; 718 719 // Generate arguments from the dummy invocation. If Generate is the 720 // inverse of Parse, the newly generated arguments must have the same 721 // semantics as the original. 722 SmallVector<const char *> GeneratedArgs1; 723 Generate(DummyInvocation, GeneratedArgs1, SA); 724 725 // Run the second parse, now on the generated arguments, and with the real 726 // invocation and diagnostics. The result is what we will end up using for the 727 // rest of compilation, so if Generate is not inverse of Parse, something down 728 // the line will break. 729 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 730 731 // The first parse on original arguments succeeded, but second parse of 732 // generated arguments failed. Something must be wrong with the generator. 733 if (!Success2) { 734 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 735 Diags.Report(diag::note_cc1_round_trip_generated) 736 << 1 << SerializeArgs(GeneratedArgs1); 737 return false; 738 } 739 740 // Generate arguments again, this time from the options we will end up using 741 // for the rest of the compilation. 742 SmallVector<const char *> GeneratedArgs2; 743 Generate(RealInvocation, GeneratedArgs2, SA); 744 745 // Compares two lists of generated arguments. 746 auto Equal = [](const ArrayRef<const char *> A, 747 const ArrayRef<const char *> B) { 748 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 749 [](const char *AElem, const char *BElem) { 750 return StringRef(AElem) == StringRef(BElem); 751 }); 752 }; 753 754 // If we generated different arguments from what we assume are two 755 // semantically equivalent CompilerInvocations, the Generate function may 756 // be non-deterministic. 757 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 758 Diags.Report(diag::err_cc1_round_trip_mismatch); 759 Diags.Report(diag::note_cc1_round_trip_generated) 760 << 1 << SerializeArgs(GeneratedArgs1); 761 Diags.Report(diag::note_cc1_round_trip_generated) 762 << 2 << SerializeArgs(GeneratedArgs2); 763 return false; 764 } 765 766 Diags.Report(diag::remark_cc1_round_trip_generated) 767 << 1 << SerializeArgs(GeneratedArgs1); 768 Diags.Report(diag::remark_cc1_round_trip_generated) 769 << 2 << SerializeArgs(GeneratedArgs2); 770 771 return Success2; 772 } 773 774 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 775 OptSpecifier GroupWithValue, 776 std::vector<std::string> &Diagnostics) { 777 for (auto *A : Args.filtered(Group)) { 778 if (A->getOption().getKind() == Option::FlagClass) { 779 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 780 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 781 Diagnostics.push_back( 782 std::string(A->getOption().getName().drop_front(1))); 783 } else if (A->getOption().matches(GroupWithValue)) { 784 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 785 // group. Add only the group name to the diagnostics. 786 Diagnostics.push_back( 787 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 788 } else { 789 // Otherwise, add its value (for OPT_W_Joined and similar). 790 Diagnostics.push_back(A->getValue()); 791 } 792 } 793 } 794 795 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 796 // it won't verify the input. 797 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 798 DiagnosticsEngine *Diags); 799 800 static void getAllNoBuiltinFuncValues(ArgList &Args, 801 std::vector<std::string> &Funcs) { 802 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 803 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 804 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 805 } 806 807 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 808 SmallVectorImpl<const char *> &Args, 809 CompilerInvocation::StringAllocator SA) { 810 const AnalyzerOptions *AnalyzerOpts = &Opts; 811 812 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 813 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 814 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 815 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 816 MERGER, EXTRACTOR, TABLE_INDEX) \ 817 GENERATE_OPTION_WITH_MARSHALLING( \ 818 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 819 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 820 #include "clang/Driver/Options.inc" 821 #undef ANALYZER_OPTION_WITH_MARSHALLING 822 823 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 824 switch (Opts.AnalysisConstraintsOpt) { 825 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 826 case NAME##Model: \ 827 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 828 break; 829 #include "clang/StaticAnalyzer/Core/Analyses.def" 830 default: 831 llvm_unreachable("Tried to generate unknown analysis constraint."); 832 } 833 } 834 835 if (Opts.AnalysisDiagOpt != PD_HTML) { 836 switch (Opts.AnalysisDiagOpt) { 837 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 838 case PD_##NAME: \ 839 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 840 break; 841 #include "clang/StaticAnalyzer/Core/Analyses.def" 842 default: 843 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 844 } 845 } 846 847 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 848 switch (Opts.AnalysisPurgeOpt) { 849 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 850 case NAME: \ 851 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 852 break; 853 #include "clang/StaticAnalyzer/Core/Analyses.def" 854 default: 855 llvm_unreachable("Tried to generate unknown analysis purge mode."); 856 } 857 } 858 859 if (Opts.InliningMode != NoRedundancy) { 860 switch (Opts.InliningMode) { 861 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 862 case NAME: \ 863 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 864 break; 865 #include "clang/StaticAnalyzer/Core/Analyses.def" 866 default: 867 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 868 } 869 } 870 871 for (const auto &CP : Opts.CheckersAndPackages) { 872 OptSpecifier Opt = 873 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 874 GenerateArg(Args, Opt, CP.first, SA); 875 } 876 877 AnalyzerOptions ConfigOpts; 878 parseAnalyzerConfigs(ConfigOpts, nullptr); 879 880 // Sort options by key to avoid relying on StringMap iteration order. 881 SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts; 882 for (const auto &C : Opts.Config) 883 SortedConfigOpts.emplace_back(C.getKey(), C.getValue()); 884 llvm::sort(SortedConfigOpts, llvm::less_first()); 885 886 for (const auto &[Key, Value] : SortedConfigOpts) { 887 // Don't generate anything that came from parseAnalyzerConfigs. It would be 888 // redundant and may not be valid on the command line. 889 auto Entry = ConfigOpts.Config.find(Key); 890 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value) 891 continue; 892 893 GenerateArg(Args, OPT_analyzer_config, Key + "=" + Value, SA); 894 } 895 896 // Nothing to generate for FullCompilerInvocation. 897 } 898 899 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 900 DiagnosticsEngine &Diags) { 901 unsigned NumErrorsBefore = Diags.getNumErrors(); 902 903 AnalyzerOptions *AnalyzerOpts = &Opts; 904 905 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 906 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 907 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 908 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 909 MERGER, EXTRACTOR, TABLE_INDEX) \ 910 PARSE_OPTION_WITH_MARSHALLING( \ 911 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 912 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 913 #include "clang/Driver/Options.inc" 914 #undef ANALYZER_OPTION_WITH_MARSHALLING 915 916 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 917 StringRef Name = A->getValue(); 918 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 919 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 920 .Case(CMDFLAG, NAME##Model) 921 #include "clang/StaticAnalyzer/Core/Analyses.def" 922 .Default(NumConstraints); 923 if (Value == NumConstraints) { 924 Diags.Report(diag::err_drv_invalid_value) 925 << A->getAsString(Args) << Name; 926 } else { 927 #ifndef LLVM_WITH_Z3 928 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 929 Diags.Report(diag::err_analyzer_not_built_with_z3); 930 } 931 #endif // LLVM_WITH_Z3 932 Opts.AnalysisConstraintsOpt = Value; 933 } 934 } 935 936 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 937 StringRef Name = A->getValue(); 938 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 939 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 940 .Case(CMDFLAG, PD_##NAME) 941 #include "clang/StaticAnalyzer/Core/Analyses.def" 942 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 943 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 944 Diags.Report(diag::err_drv_invalid_value) 945 << A->getAsString(Args) << Name; 946 } else { 947 Opts.AnalysisDiagOpt = Value; 948 } 949 } 950 951 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 952 StringRef Name = A->getValue(); 953 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 954 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 955 .Case(CMDFLAG, NAME) 956 #include "clang/StaticAnalyzer/Core/Analyses.def" 957 .Default(NumPurgeModes); 958 if (Value == NumPurgeModes) { 959 Diags.Report(diag::err_drv_invalid_value) 960 << A->getAsString(Args) << Name; 961 } else { 962 Opts.AnalysisPurgeOpt = Value; 963 } 964 } 965 966 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 967 StringRef Name = A->getValue(); 968 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 969 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 970 .Case(CMDFLAG, NAME) 971 #include "clang/StaticAnalyzer/Core/Analyses.def" 972 .Default(NumInliningModes); 973 if (Value == NumInliningModes) { 974 Diags.Report(diag::err_drv_invalid_value) 975 << A->getAsString(Args) << Name; 976 } else { 977 Opts.InliningMode = Value; 978 } 979 } 980 981 Opts.CheckersAndPackages.clear(); 982 for (const Arg *A : 983 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 984 A->claim(); 985 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 986 // We can have a list of comma separated checker names, e.g: 987 // '-analyzer-checker=cocoa,unix' 988 StringRef CheckerAndPackageList = A->getValue(); 989 SmallVector<StringRef, 16> CheckersAndPackages; 990 CheckerAndPackageList.split(CheckersAndPackages, ","); 991 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 992 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 993 IsEnabled); 994 } 995 996 // Go through the analyzer configuration options. 997 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 998 999 // We can have a list of comma separated config names, e.g: 1000 // '-analyzer-config key1=val1,key2=val2' 1001 StringRef configList = A->getValue(); 1002 SmallVector<StringRef, 4> configVals; 1003 configList.split(configVals, ","); 1004 for (const auto &configVal : configVals) { 1005 StringRef key, val; 1006 std::tie(key, val) = configVal.split("="); 1007 if (val.empty()) { 1008 Diags.Report(SourceLocation(), 1009 diag::err_analyzer_config_no_value) << configVal; 1010 break; 1011 } 1012 if (val.contains('=')) { 1013 Diags.Report(SourceLocation(), 1014 diag::err_analyzer_config_multiple_values) 1015 << configVal; 1016 break; 1017 } 1018 1019 // TODO: Check checker options too, possibly in CheckerRegistry. 1020 // Leave unknown non-checker configs unclaimed. 1021 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1022 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1023 Diags.Report(diag::err_analyzer_config_unknown) << key; 1024 continue; 1025 } 1026 1027 A->claim(); 1028 Opts.Config[key] = std::string(val); 1029 1030 // FIXME: Remove this hunk after clang-17 released. 1031 constexpr auto SingleFAM = 1032 "consider-single-element-arrays-as-flexible-array-members"; 1033 if (key == SingleFAM) { 1034 Diags.Report(diag::warn_analyzer_deprecated_option_with_alternative) 1035 << SingleFAM << "clang-17" 1036 << "-fstrict-flex-arrays=<N>"; 1037 } 1038 } 1039 } 1040 1041 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1042 parseAnalyzerConfigs(Opts, &Diags); 1043 else 1044 parseAnalyzerConfigs(Opts, nullptr); 1045 1046 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1047 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1048 if (i != 0) 1049 os << " "; 1050 os << Args.getArgString(i); 1051 } 1052 os.flush(); 1053 1054 return Diags.getNumErrors() == NumErrorsBefore; 1055 } 1056 1057 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1058 StringRef OptionName, StringRef DefaultVal) { 1059 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1060 } 1061 1062 static void initOption(AnalyzerOptions::ConfigTable &Config, 1063 DiagnosticsEngine *Diags, 1064 StringRef &OptionField, StringRef Name, 1065 StringRef DefaultVal) { 1066 // String options may be known to invalid (e.g. if the expected string is a 1067 // file name, but the file does not exist), those will have to be checked in 1068 // parseConfigs. 1069 OptionField = getStringOption(Config, Name, DefaultVal); 1070 } 1071 1072 static void initOption(AnalyzerOptions::ConfigTable &Config, 1073 DiagnosticsEngine *Diags, 1074 bool &OptionField, StringRef Name, bool DefaultVal) { 1075 auto PossiblyInvalidVal = 1076 llvm::StringSwitch<std::optional<bool>>( 1077 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1078 .Case("true", true) 1079 .Case("false", false) 1080 .Default(std::nullopt); 1081 1082 if (!PossiblyInvalidVal) { 1083 if (Diags) 1084 Diags->Report(diag::err_analyzer_config_invalid_input) 1085 << Name << "a boolean"; 1086 else 1087 OptionField = DefaultVal; 1088 } else 1089 OptionField = *PossiblyInvalidVal; 1090 } 1091 1092 static void initOption(AnalyzerOptions::ConfigTable &Config, 1093 DiagnosticsEngine *Diags, 1094 unsigned &OptionField, StringRef Name, 1095 unsigned DefaultVal) { 1096 1097 OptionField = DefaultVal; 1098 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1099 .getAsInteger(0, OptionField); 1100 if (Diags && HasFailed) 1101 Diags->Report(diag::err_analyzer_config_invalid_input) 1102 << Name << "an unsigned"; 1103 } 1104 1105 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1106 DiagnosticsEngine *Diags) { 1107 // TODO: There's no need to store the entire configtable, it'd be plenty 1108 // enough to store checker options. 1109 1110 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1111 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1112 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1113 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1114 1115 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1116 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1117 1118 #define ANALYZER_OPTION(...) 1119 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1120 SHALLOW_VAL, DEEP_VAL) \ 1121 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1122 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1123 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1124 1125 // At this point, AnalyzerOptions is configured. Let's validate some options. 1126 1127 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1128 // The current approach only validates the registered checkers which does not 1129 // contain the runtime enabled checkers and optimally we would validate both. 1130 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1131 std::vector<StringRef> Checkers = 1132 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1133 std::vector<StringRef> Packages = 1134 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1135 1136 SmallVector<StringRef, 16> CheckersAndPackages; 1137 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1138 1139 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1140 if (Diags) { 1141 bool IsChecker = CheckerOrPackage.contains('.'); 1142 bool IsValidName = IsChecker 1143 ? llvm::is_contained(Checkers, CheckerOrPackage) 1144 : llvm::is_contained(Packages, CheckerOrPackage); 1145 1146 if (!IsValidName) 1147 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1148 << CheckerOrPackage; 1149 } 1150 1151 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1152 } 1153 } 1154 1155 if (!Diags) 1156 return; 1157 1158 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1159 Diags->Report(diag::err_analyzer_config_invalid_input) 1160 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1161 1162 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1163 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1164 << "a filename"; 1165 1166 if (!AnOpts.ModelPath.empty() && 1167 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1168 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1169 << "a filename"; 1170 } 1171 1172 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1173 static void 1174 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1175 CompilerInvocation::StringAllocator SA, 1176 OptSpecifier OptEQ, StringRef Name, 1177 const CodeGenOptions::OptRemark &Remark) { 1178 if (Remark.hasValidPattern()) { 1179 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1180 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1181 GenerateArg(Args, OPT_R_Joined, Name, SA); 1182 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1183 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1184 } 1185 } 1186 1187 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1188 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1189 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1190 static CodeGenOptions::OptRemark 1191 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1192 OptSpecifier OptEQ, StringRef Name) { 1193 CodeGenOptions::OptRemark Result; 1194 1195 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1196 StringRef Pattern) { 1197 Result.Pattern = Pattern.str(); 1198 1199 std::string RegexError; 1200 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1201 if (!Result.Regex->isValid(RegexError)) { 1202 Diags.Report(diag::err_drv_optimization_remark_pattern) 1203 << RegexError << A->getAsString(Args); 1204 return false; 1205 } 1206 1207 return true; 1208 }; 1209 1210 for (Arg *A : Args) { 1211 if (A->getOption().matches(OPT_R_Joined)) { 1212 StringRef Value = A->getValue(); 1213 1214 if (Value == Name) 1215 Result.Kind = CodeGenOptions::RK_Enabled; 1216 else if (Value == "everything") 1217 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1218 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1219 Result.Kind = CodeGenOptions::RK_Disabled; 1220 else if (Value == "no-everything") 1221 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1222 else 1223 continue; 1224 1225 if (Result.Kind == CodeGenOptions::RK_Disabled || 1226 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1227 Result.Pattern = ""; 1228 Result.Regex = nullptr; 1229 } else { 1230 InitializeResultPattern(A, ".*"); 1231 } 1232 } else if (A->getOption().matches(OptEQ)) { 1233 Result.Kind = CodeGenOptions::RK_WithPattern; 1234 if (!InitializeResultPattern(A, A->getValue())) 1235 return CodeGenOptions::OptRemark(); 1236 } 1237 } 1238 1239 return Result; 1240 } 1241 1242 static bool parseDiagnosticLevelMask(StringRef FlagName, 1243 const std::vector<std::string> &Levels, 1244 DiagnosticsEngine &Diags, 1245 DiagnosticLevelMask &M) { 1246 bool Success = true; 1247 for (const auto &Level : Levels) { 1248 DiagnosticLevelMask const PM = 1249 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1250 .Case("note", DiagnosticLevelMask::Note) 1251 .Case("remark", DiagnosticLevelMask::Remark) 1252 .Case("warning", DiagnosticLevelMask::Warning) 1253 .Case("error", DiagnosticLevelMask::Error) 1254 .Default(DiagnosticLevelMask::None); 1255 if (PM == DiagnosticLevelMask::None) { 1256 Success = false; 1257 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1258 } 1259 M = M | PM; 1260 } 1261 return Success; 1262 } 1263 1264 static void parseSanitizerKinds(StringRef FlagName, 1265 const std::vector<std::string> &Sanitizers, 1266 DiagnosticsEngine &Diags, SanitizerSet &S) { 1267 for (const auto &Sanitizer : Sanitizers) { 1268 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1269 if (K == SanitizerMask()) 1270 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1271 else 1272 S.set(K, true); 1273 } 1274 } 1275 1276 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1277 SmallVector<StringRef, 4> Values; 1278 serializeSanitizerSet(S, Values); 1279 return Values; 1280 } 1281 1282 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1283 ArgList &Args, DiagnosticsEngine &D, 1284 XRayInstrSet &S) { 1285 llvm::SmallVector<StringRef, 2> BundleParts; 1286 llvm::SplitString(Bundle, BundleParts, ","); 1287 for (const auto &B : BundleParts) { 1288 auto Mask = parseXRayInstrValue(B); 1289 if (Mask == XRayInstrKind::None) 1290 if (B != "none") 1291 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1292 else 1293 S.Mask = Mask; 1294 else if (Mask == XRayInstrKind::All) 1295 S.Mask = Mask; 1296 else 1297 S.set(Mask, true); 1298 } 1299 } 1300 1301 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1302 llvm::SmallVector<StringRef, 2> BundleParts; 1303 serializeXRayInstrValue(S, BundleParts); 1304 std::string Buffer; 1305 llvm::raw_string_ostream OS(Buffer); 1306 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1307 return Buffer; 1308 } 1309 1310 // Set the profile kind using fprofile-instrument-use-path. 1311 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1312 const Twine &ProfileName, 1313 llvm::vfs::FileSystem &FS, 1314 DiagnosticsEngine &Diags) { 1315 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName, FS); 1316 if (auto E = ReaderOrErr.takeError()) { 1317 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1318 "Error in reading profile %0: %1"); 1319 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1320 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1321 }); 1322 return; 1323 } 1324 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1325 std::move(ReaderOrErr.get()); 1326 // Currently memprof profiles are only added at the IR level. Mark the profile 1327 // type as IR in that case as well and the subsequent matching needs to detect 1328 // which is available (might be one or both). 1329 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1330 if (PGOReader->hasCSIRLevelProfile()) 1331 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1332 else 1333 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1334 } else 1335 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1336 } 1337 1338 void CompilerInvocation::GenerateCodeGenArgs( 1339 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1340 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1341 const LangOptions *LangOpts) { 1342 const CodeGenOptions &CodeGenOpts = Opts; 1343 1344 if (Opts.OptimizationLevel == 0) 1345 GenerateArg(Args, OPT_O0, SA); 1346 else 1347 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1348 1349 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1350 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1351 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1352 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1353 MERGER, EXTRACTOR, TABLE_INDEX) \ 1354 GENERATE_OPTION_WITH_MARSHALLING( \ 1355 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1356 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1357 #include "clang/Driver/Options.inc" 1358 #undef CODEGEN_OPTION_WITH_MARSHALLING 1359 1360 if (Opts.OptimizationLevel > 0) { 1361 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1362 GenerateArg(Args, OPT_finline_functions, SA); 1363 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1364 GenerateArg(Args, OPT_finline_hint_functions, SA); 1365 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1366 GenerateArg(Args, OPT_fno_inline, SA); 1367 } 1368 1369 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1370 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1371 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1372 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1373 1374 std::optional<StringRef> DebugInfoVal; 1375 switch (Opts.DebugInfo) { 1376 case codegenoptions::DebugLineTablesOnly: 1377 DebugInfoVal = "line-tables-only"; 1378 break; 1379 case codegenoptions::DebugDirectivesOnly: 1380 DebugInfoVal = "line-directives-only"; 1381 break; 1382 case codegenoptions::DebugInfoConstructor: 1383 DebugInfoVal = "constructor"; 1384 break; 1385 case codegenoptions::LimitedDebugInfo: 1386 DebugInfoVal = "limited"; 1387 break; 1388 case codegenoptions::FullDebugInfo: 1389 DebugInfoVal = "standalone"; 1390 break; 1391 case codegenoptions::UnusedTypeInfo: 1392 DebugInfoVal = "unused-types"; 1393 break; 1394 case codegenoptions::NoDebugInfo: // default value 1395 DebugInfoVal = std::nullopt; 1396 break; 1397 case codegenoptions::LocTrackingOnly: // implied value 1398 DebugInfoVal = std::nullopt; 1399 break; 1400 } 1401 if (DebugInfoVal) 1402 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1403 1404 for (const auto &Prefix : Opts.DebugPrefixMap) 1405 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1406 Prefix.first + "=" + Prefix.second, SA); 1407 1408 for (const auto &Prefix : Opts.CoveragePrefixMap) 1409 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1410 Prefix.first + "=" + Prefix.second, SA); 1411 1412 if (Opts.NewStructPathTBAA) 1413 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1414 1415 if (Opts.OptimizeSize == 1) 1416 GenerateArg(Args, OPT_O, "s", SA); 1417 else if (Opts.OptimizeSize == 2) 1418 GenerateArg(Args, OPT_O, "z", SA); 1419 1420 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1421 // -ffreestanding. We'll consider that when generating them. 1422 1423 // NoBuiltinFuncs are generated by LangOptions. 1424 1425 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1426 GenerateArg(Args, OPT_funroll_loops, SA); 1427 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1428 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1429 1430 if (!Opts.BinutilsVersion.empty()) 1431 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1432 1433 if (Opts.DebugNameTable == 1434 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1435 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1436 else if (Opts.DebugNameTable == 1437 static_cast<unsigned>( 1438 llvm::DICompileUnit::DebugNameTableKind::Default)) 1439 GenerateArg(Args, OPT_gpubnames, SA); 1440 1441 auto TNK = Opts.getDebugSimpleTemplateNames(); 1442 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1443 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1444 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1445 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1446 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1447 } 1448 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1449 // it or PGOUseInstrumentor. 1450 1451 if (Opts.TimePasses) { 1452 if (Opts.TimePassesPerRun) 1453 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1454 else 1455 GenerateArg(Args, OPT_ftime_report, SA); 1456 } 1457 1458 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1459 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1460 1461 if (Opts.PrepareForThinLTO) 1462 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1463 1464 if (!Opts.ThinLTOIndexFile.empty()) 1465 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1466 1467 if (Opts.SaveTempsFilePrefix == OutputFile) 1468 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1469 1470 StringRef MemProfileBasename("memprof.profraw"); 1471 if (!Opts.MemoryProfileOutput.empty()) { 1472 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1473 GenerateArg(Args, OPT_fmemory_profile, SA); 1474 } else { 1475 size_t ArgLength = 1476 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1477 GenerateArg(Args, OPT_fmemory_profile_EQ, 1478 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1479 } 1480 } 1481 1482 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1483 GenerateArg(Args, OPT_coverage_version_EQ, 1484 StringRef(Opts.CoverageVersion, 4), SA); 1485 1486 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1487 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1488 // won't be generated.) 1489 1490 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1491 std::string InstrBundle = 1492 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1493 if (!InstrBundle.empty()) 1494 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1495 } 1496 1497 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1498 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1499 else if (Opts.CFProtectionReturn) 1500 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1501 else if (Opts.CFProtectionBranch) 1502 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1503 1504 if (Opts.FunctionReturnThunks) 1505 GenerateArg(Args, OPT_mfunction_return_EQ, "thunk-extern", SA); 1506 1507 for (const auto &F : Opts.LinkBitcodeFiles) { 1508 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1509 F.PropagateAttrs && F.Internalize; 1510 GenerateArg(Args, 1511 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1512 F.Filename, SA); 1513 } 1514 1515 GenerateArg( 1516 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1517 1518 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1519 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1520 1521 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1522 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1523 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1524 SA); 1525 1526 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1527 OptSpecifier Opt = 1528 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1529 GenerateArg(Args, Opt, SA); 1530 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1531 OptSpecifier Opt = 1532 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1533 GenerateArg(Args, Opt, SA); 1534 } 1535 1536 if (Opts.EnableAIXExtendedAltivecABI) 1537 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1538 1539 if (!Opts.OptRecordPasses.empty()) 1540 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1541 1542 if (!Opts.OptRecordFormat.empty()) 1543 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1544 1545 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1546 Opts.OptimizationRemark); 1547 1548 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1549 Opts.OptimizationRemarkMissed); 1550 1551 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1552 Opts.OptimizationRemarkAnalysis); 1553 1554 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1555 Opts.DiagnosticsHotnessThreshold 1556 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1557 : "auto", 1558 SA); 1559 1560 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1561 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1562 1563 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1564 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1565 1566 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1567 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1568 1569 if (!Opts.EmitVersionIdentMetadata) 1570 GenerateArg(Args, OPT_Qn, SA); 1571 1572 switch (Opts.FiniteLoops) { 1573 case CodeGenOptions::FiniteLoopsKind::Language: 1574 break; 1575 case CodeGenOptions::FiniteLoopsKind::Always: 1576 GenerateArg(Args, OPT_ffinite_loops, SA); 1577 break; 1578 case CodeGenOptions::FiniteLoopsKind::Never: 1579 GenerateArg(Args, OPT_fno_finite_loops, SA); 1580 break; 1581 } 1582 } 1583 1584 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1585 InputKind IK, 1586 DiagnosticsEngine &Diags, 1587 const llvm::Triple &T, 1588 const std::string &OutputFile, 1589 const LangOptions &LangOptsRef) { 1590 unsigned NumErrorsBefore = Diags.getNumErrors(); 1591 1592 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1593 // TODO: This could be done in Driver 1594 unsigned MaxOptLevel = 3; 1595 if (OptimizationLevel > MaxOptLevel) { 1596 // If the optimization level is not supported, fall back on the default 1597 // optimization 1598 Diags.Report(diag::warn_drv_optimization_value) 1599 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1600 OptimizationLevel = MaxOptLevel; 1601 } 1602 Opts.OptimizationLevel = OptimizationLevel; 1603 1604 // The key paths of codegen options defined in Options.td start with 1605 // "CodeGenOpts.". Let's provide the expected variable name and type. 1606 CodeGenOptions &CodeGenOpts = Opts; 1607 // Some codegen options depend on language options. Let's provide the expected 1608 // variable name and type. 1609 const LangOptions *LangOpts = &LangOptsRef; 1610 1611 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1612 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1613 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1614 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1615 MERGER, EXTRACTOR, TABLE_INDEX) \ 1616 PARSE_OPTION_WITH_MARSHALLING( \ 1617 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1618 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1619 #include "clang/Driver/Options.inc" 1620 #undef CODEGEN_OPTION_WITH_MARSHALLING 1621 1622 // At O0 we want to fully disable inlining outside of cases marked with 1623 // 'alwaysinline' that are required for correctness. 1624 if (Opts.OptimizationLevel == 0) { 1625 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1626 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1627 options::OPT_finline_hint_functions, 1628 options::OPT_fno_inline_functions, 1629 options::OPT_fno_inline)) { 1630 // Explicit inlining flags can disable some or all inlining even at 1631 // optimization levels above zero. 1632 if (A->getOption().matches(options::OPT_finline_functions)) 1633 Opts.setInlining(CodeGenOptions::NormalInlining); 1634 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1635 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1636 else 1637 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1638 } else { 1639 Opts.setInlining(CodeGenOptions::NormalInlining); 1640 } 1641 1642 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1643 // -fdirect-access-external-data. 1644 Opts.DirectAccessExternalData = 1645 Args.hasArg(OPT_fdirect_access_external_data) || 1646 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1647 LangOpts->PICLevel == 0); 1648 1649 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1650 unsigned Val = 1651 llvm::StringSwitch<unsigned>(A->getValue()) 1652 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1653 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1654 .Case("constructor", codegenoptions::DebugInfoConstructor) 1655 .Case("limited", codegenoptions::LimitedDebugInfo) 1656 .Case("standalone", codegenoptions::FullDebugInfo) 1657 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1658 .Default(~0U); 1659 if (Val == ~0U) 1660 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1661 << A->getValue(); 1662 else 1663 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1664 } 1665 1666 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1667 // constructor homing, and vice versa for -fno-use-ctor-homing. 1668 if (const Arg *A = 1669 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1670 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1671 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1672 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1673 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1674 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1675 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1676 } 1677 1678 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1679 auto Split = StringRef(Arg).split('='); 1680 Opts.DebugPrefixMap.insert( 1681 {std::string(Split.first), std::string(Split.second)}); 1682 } 1683 1684 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1685 auto Split = StringRef(Arg).split('='); 1686 Opts.CoveragePrefixMap.insert( 1687 {std::string(Split.first), std::string(Split.second)}); 1688 } 1689 1690 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1691 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1692 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1693 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1694 1695 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1696 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1697 Opts.EmitCallSiteInfo = true; 1698 1699 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1700 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1701 << Opts.DIBugsReportFilePath; 1702 Opts.DIBugsReportFilePath = ""; 1703 } 1704 1705 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1706 Args.hasArg(OPT_new_struct_path_tbaa); 1707 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1708 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1709 if (Opts.SimplifyLibCalls) 1710 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1711 Opts.UnrollLoops = 1712 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1713 (Opts.OptimizationLevel > 1)); 1714 Opts.BinutilsVersion = 1715 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1716 1717 Opts.DebugNameTable = static_cast<unsigned>( 1718 Args.hasArg(OPT_ggnu_pubnames) 1719 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1720 : Args.hasArg(OPT_gpubnames) 1721 ? llvm::DICompileUnit::DebugNameTableKind::Default 1722 : llvm::DICompileUnit::DebugNameTableKind::None); 1723 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1724 StringRef Value = A->getValue(); 1725 if (Value != "simple" && Value != "mangled") 1726 Diags.Report(diag::err_drv_unsupported_option_argument) 1727 << A->getSpelling() << A->getValue(); 1728 Opts.setDebugSimpleTemplateNames( 1729 StringRef(A->getValue()) == "simple" 1730 ? codegenoptions::DebugTemplateNamesKind::Simple 1731 : codegenoptions::DebugTemplateNamesKind::Mangled); 1732 } 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 for (auto *A : 1861 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1862 CodeGenOptions::BitcodeFileToLink F; 1863 F.Filename = A->getValue(); 1864 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1865 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1866 // When linking CUDA bitcode, propagate function attributes so that 1867 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1868 F.PropagateAttrs = true; 1869 F.Internalize = true; 1870 } 1871 Opts.LinkBitcodeFiles.push_back(F); 1872 } 1873 1874 if (!Args.getLastArg(OPT_femulated_tls) && 1875 !Args.getLastArg(OPT_fno_emulated_tls)) { 1876 Opts.EmulatedTLS = T.hasDefaultEmulatedTLS(); 1877 } 1878 1879 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1880 if (T.isOSAIX()) { 1881 StringRef Name = A->getValue(); 1882 if (Name != "global-dynamic") 1883 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1884 } 1885 } 1886 1887 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1888 StringRef Val = A->getValue(); 1889 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1890 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1891 if (!Opts.FPDenormalMode.isValid()) 1892 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1893 } 1894 1895 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1896 StringRef Val = A->getValue(); 1897 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1898 if (!Opts.FP32DenormalMode.isValid()) 1899 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1900 } 1901 1902 // X86_32 has -fppc-struct-return and -freg-struct-return. 1903 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1904 if (Arg *A = 1905 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1906 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1907 // TODO: We might want to consider enabling these options on AIX in the 1908 // future. 1909 if (T.isOSAIX()) 1910 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1911 << A->getSpelling() << T.str(); 1912 1913 const Option &O = A->getOption(); 1914 if (O.matches(OPT_fpcc_struct_return) || 1915 O.matches(OPT_maix_struct_return)) { 1916 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1917 } else { 1918 assert(O.matches(OPT_freg_struct_return) || 1919 O.matches(OPT_msvr4_struct_return)); 1920 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1921 } 1922 } 1923 1924 if (Arg *A = 1925 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1926 if (!T.isOSAIX()) 1927 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1928 << A->getSpelling() << T.str(); 1929 1930 const Option &O = A->getOption(); 1931 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1932 } 1933 1934 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1935 if (!T.isOSAIX() || T.isPPC32()) 1936 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1937 << A->getSpelling() << T.str(); 1938 } 1939 1940 bool NeedLocTracking = false; 1941 1942 if (!Opts.OptRecordFile.empty()) 1943 NeedLocTracking = true; 1944 1945 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1946 Opts.OptRecordPasses = A->getValue(); 1947 NeedLocTracking = true; 1948 } 1949 1950 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1951 Opts.OptRecordFormat = A->getValue(); 1952 NeedLocTracking = true; 1953 } 1954 1955 Opts.OptimizationRemark = 1956 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1957 1958 Opts.OptimizationRemarkMissed = 1959 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1960 1961 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1962 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1963 1964 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1965 Opts.OptimizationRemarkMissed.hasValidPattern() || 1966 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1967 1968 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1969 bool UsingProfile = 1970 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 1971 1972 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1973 // An IR file will contain PGO as metadata 1974 IK.getLanguage() != Language::LLVM_IR) 1975 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1976 << "-fdiagnostics-show-hotness"; 1977 1978 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1979 if (auto *arg = 1980 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1981 auto ResultOrErr = 1982 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1983 1984 if (!ResultOrErr) { 1985 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1986 << "-fdiagnostics-hotness-threshold="; 1987 } else { 1988 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1989 if ((!Opts.DiagnosticsHotnessThreshold || 1990 *Opts.DiagnosticsHotnessThreshold > 0) && 1991 !UsingProfile) 1992 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1993 << "-fdiagnostics-hotness-threshold="; 1994 } 1995 } 1996 1997 if (auto *arg = 1998 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1999 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2000 2001 if (!ResultOrErr) { 2002 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2003 << "-fdiagnostics-misexpect-tolerance="; 2004 } else { 2005 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2006 if ((!Opts.DiagnosticsMisExpectTolerance || 2007 *Opts.DiagnosticsMisExpectTolerance > 0) && 2008 !UsingProfile) 2009 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2010 << "-fdiagnostics-misexpect-tolerance="; 2011 } 2012 } 2013 2014 // If the user requested to use a sample profile for PGO, then the 2015 // backend will need to track source location information so the profile 2016 // can be incorporated into the IR. 2017 if (UsingSampleProfile) 2018 NeedLocTracking = true; 2019 2020 if (!Opts.StackUsageOutput.empty()) 2021 NeedLocTracking = true; 2022 2023 // If the user requested a flag that requires source locations available in 2024 // the backend, make sure that the backend tracks source location information. 2025 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2026 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2027 2028 // Parse -fsanitize-recover= arguments. 2029 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2030 parseSanitizerKinds("-fsanitize-recover=", 2031 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2032 Opts.SanitizeRecover); 2033 parseSanitizerKinds("-fsanitize-trap=", 2034 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2035 Opts.SanitizeTrap); 2036 2037 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2038 2039 if (Args.hasArg(options::OPT_ffinite_loops)) 2040 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2041 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2042 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2043 2044 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2045 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2046 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2047 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2048 2049 return Diags.getNumErrors() == NumErrorsBefore; 2050 } 2051 2052 static void 2053 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2054 SmallVectorImpl<const char *> &Args, 2055 CompilerInvocation::StringAllocator SA) { 2056 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2057 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2058 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2059 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2060 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2061 MERGER, EXTRACTOR, TABLE_INDEX) \ 2062 GENERATE_OPTION_WITH_MARSHALLING( \ 2063 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2064 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2065 #include "clang/Driver/Options.inc" 2066 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2067 2068 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2069 GenerateArg(Args, OPT_show_includes, SA); 2070 2071 for (const auto &Dep : Opts.ExtraDeps) { 2072 switch (Dep.second) { 2073 case EDK_SanitizeIgnorelist: 2074 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2075 continue; 2076 case EDK_ModuleFile: 2077 // Module file arguments are generated from FrontendOptions and 2078 // HeaderSearchOptions. 2079 continue; 2080 case EDK_ProfileList: 2081 // Profile list arguments are generated from LanguageOptions via the 2082 // marshalling infrastructure. 2083 continue; 2084 case EDK_DepFileEntry: 2085 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2086 break; 2087 } 2088 } 2089 } 2090 2091 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2092 ArgList &Args, DiagnosticsEngine &Diags, 2093 frontend::ActionKind Action, 2094 bool ShowLineMarkers) { 2095 unsigned NumErrorsBefore = Diags.getNumErrors(); 2096 2097 DependencyOutputOptions &DependencyOutputOpts = Opts; 2098 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2099 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2100 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2101 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2102 MERGER, EXTRACTOR, TABLE_INDEX) \ 2103 PARSE_OPTION_WITH_MARSHALLING( \ 2104 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2105 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2106 #include "clang/Driver/Options.inc" 2107 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2108 2109 if (Args.hasArg(OPT_show_includes)) { 2110 // Writing both /showIncludes and preprocessor output to stdout 2111 // would produce interleaved output, so use stderr for /showIncludes. 2112 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2113 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2114 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2115 else 2116 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2117 } else { 2118 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2119 } 2120 2121 // Add sanitizer ignorelists as extra dependencies. 2122 // They won't be discovered by the regular preprocessor, so 2123 // we let make / ninja to know about this implicit dependency. 2124 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2125 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2126 StringRef Val = A->getValue(); 2127 if (!Val.contains('=')) 2128 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2129 } 2130 if (Opts.IncludeSystemHeaders) { 2131 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2132 StringRef Val = A->getValue(); 2133 if (!Val.contains('=')) 2134 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2135 } 2136 } 2137 } 2138 2139 // -fprofile-list= dependencies. 2140 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2141 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2142 2143 // Propagate the extra dependencies. 2144 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2145 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2146 2147 // Only the -fmodule-file=<file> form. 2148 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2149 StringRef Val = A->getValue(); 2150 if (!Val.contains('=')) 2151 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2152 } 2153 2154 // Check for invalid combinations of header-include-format 2155 // and header-include-filtering. 2156 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2157 Opts.HeaderIncludeFiltering != HIFIL_None) || 2158 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2159 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2160 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2161 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2162 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2163 2164 return Diags.getNumErrors() == NumErrorsBefore; 2165 } 2166 2167 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2168 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2169 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2170 // Support both clang's -f[no-]color-diagnostics and gcc's 2171 // -f[no-]diagnostics-colors[=never|always|auto]. 2172 enum { 2173 Colors_On, 2174 Colors_Off, 2175 Colors_Auto 2176 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2177 for (auto *A : Args) { 2178 const Option &O = A->getOption(); 2179 if (O.matches(options::OPT_fcolor_diagnostics)) { 2180 ShowColors = Colors_On; 2181 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2182 ShowColors = Colors_Off; 2183 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2184 StringRef Value(A->getValue()); 2185 if (Value == "always") 2186 ShowColors = Colors_On; 2187 else if (Value == "never") 2188 ShowColors = Colors_Off; 2189 else if (Value == "auto") 2190 ShowColors = Colors_Auto; 2191 } 2192 } 2193 return ShowColors == Colors_On || 2194 (ShowColors == Colors_Auto && 2195 llvm::sys::Process::StandardErrHasColors()); 2196 } 2197 2198 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2199 DiagnosticsEngine &Diags) { 2200 bool Success = true; 2201 for (const auto &Prefix : VerifyPrefixes) { 2202 // Every prefix must start with a letter and contain only alphanumeric 2203 // characters, hyphens, and underscores. 2204 auto BadChar = llvm::find_if(Prefix, [](char C) { 2205 return !isAlphanumeric(C) && C != '-' && C != '_'; 2206 }); 2207 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2208 Success = false; 2209 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2210 Diags.Report(diag::note_drv_verify_prefix_spelling); 2211 } 2212 } 2213 return Success; 2214 } 2215 2216 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2217 SmallVectorImpl<const char *> &Args, 2218 CompilerInvocation::StringAllocator SA) { 2219 const FileSystemOptions &FileSystemOpts = Opts; 2220 2221 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2222 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2223 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2224 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2225 MERGER, EXTRACTOR, TABLE_INDEX) \ 2226 GENERATE_OPTION_WITH_MARSHALLING( \ 2227 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2228 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2229 #include "clang/Driver/Options.inc" 2230 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2231 } 2232 2233 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2234 DiagnosticsEngine &Diags) { 2235 unsigned NumErrorsBefore = Diags.getNumErrors(); 2236 2237 FileSystemOptions &FileSystemOpts = Opts; 2238 2239 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2240 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2241 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2242 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2243 MERGER, EXTRACTOR, TABLE_INDEX) \ 2244 PARSE_OPTION_WITH_MARSHALLING( \ 2245 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2246 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2247 #include "clang/Driver/Options.inc" 2248 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2249 2250 return Diags.getNumErrors() == NumErrorsBefore; 2251 } 2252 2253 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2254 SmallVectorImpl<const char *> &Args, 2255 CompilerInvocation::StringAllocator SA) { 2256 const MigratorOptions &MigratorOpts = Opts; 2257 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2258 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2259 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2260 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2261 MERGER, EXTRACTOR, TABLE_INDEX) \ 2262 GENERATE_OPTION_WITH_MARSHALLING( \ 2263 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2264 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2265 #include "clang/Driver/Options.inc" 2266 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2267 } 2268 2269 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2270 DiagnosticsEngine &Diags) { 2271 unsigned NumErrorsBefore = Diags.getNumErrors(); 2272 2273 MigratorOptions &MigratorOpts = Opts; 2274 2275 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2276 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2277 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2278 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2279 MERGER, EXTRACTOR, TABLE_INDEX) \ 2280 PARSE_OPTION_WITH_MARSHALLING( \ 2281 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2282 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2283 #include "clang/Driver/Options.inc" 2284 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2285 2286 return Diags.getNumErrors() == NumErrorsBefore; 2287 } 2288 2289 void CompilerInvocation::GenerateDiagnosticArgs( 2290 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2291 StringAllocator SA, bool DefaultDiagColor) { 2292 const DiagnosticOptions *DiagnosticOpts = &Opts; 2293 #define DIAG_OPTION_WITH_MARSHALLING( \ 2294 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2295 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2296 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2297 MERGER, EXTRACTOR, TABLE_INDEX) \ 2298 GENERATE_OPTION_WITH_MARSHALLING( \ 2299 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2300 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2301 #include "clang/Driver/Options.inc" 2302 #undef DIAG_OPTION_WITH_MARSHALLING 2303 2304 if (!Opts.DiagnosticSerializationFile.empty()) 2305 GenerateArg(Args, OPT_diagnostic_serialized_file, 2306 Opts.DiagnosticSerializationFile, SA); 2307 2308 if (Opts.ShowColors) 2309 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2310 2311 if (Opts.VerifyDiagnostics && 2312 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2313 GenerateArg(Args, OPT_verify, SA); 2314 2315 for (const auto &Prefix : Opts.VerifyPrefixes) 2316 if (Prefix != "expected") 2317 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2318 2319 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2320 if (VIU == DiagnosticLevelMask::None) { 2321 // This is the default, don't generate anything. 2322 } else if (VIU == DiagnosticLevelMask::All) { 2323 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2324 } else { 2325 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2326 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2327 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2328 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2329 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2330 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2331 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2332 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2333 } 2334 2335 for (const auto &Warning : Opts.Warnings) { 2336 // This option is automatically generated from UndefPrefixes. 2337 if (Warning == "undef-prefix") 2338 continue; 2339 Args.push_back(SA(StringRef("-W") + Warning)); 2340 } 2341 2342 for (const auto &Remark : Opts.Remarks) { 2343 // These arguments are generated from OptimizationRemark fields of 2344 // CodeGenOptions. 2345 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2346 "pass-analysis", "no-pass-analysis", 2347 "pass-missed", "no-pass-missed"}; 2348 if (llvm::is_contained(IgnoredRemarks, Remark)) 2349 continue; 2350 2351 Args.push_back(SA(StringRef("-R") + Remark)); 2352 } 2353 } 2354 2355 std::unique_ptr<DiagnosticOptions> 2356 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2357 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2358 unsigned MissingArgIndex, MissingArgCount; 2359 InputArgList Args = getDriverOptTable().ParseArgs( 2360 Argv.slice(1), MissingArgIndex, MissingArgCount); 2361 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2362 // Any errors that would be diagnosed here will also be diagnosed later, 2363 // when the DiagnosticsEngine actually exists. 2364 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2365 return DiagOpts; 2366 } 2367 2368 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2369 DiagnosticsEngine *Diags, 2370 bool DefaultDiagColor) { 2371 std::optional<DiagnosticsEngine> IgnoringDiags; 2372 if (!Diags) { 2373 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2374 new IgnoringDiagConsumer()); 2375 Diags = &*IgnoringDiags; 2376 } 2377 2378 unsigned NumErrorsBefore = Diags->getNumErrors(); 2379 2380 // The key paths of diagnostic options defined in Options.td start with 2381 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2382 DiagnosticOptions *DiagnosticOpts = &Opts; 2383 2384 #define DIAG_OPTION_WITH_MARSHALLING( \ 2385 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2386 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2387 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2388 MERGER, EXTRACTOR, TABLE_INDEX) \ 2389 PARSE_OPTION_WITH_MARSHALLING( \ 2390 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2391 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2392 #include "clang/Driver/Options.inc" 2393 #undef DIAG_OPTION_WITH_MARSHALLING 2394 2395 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2396 2397 if (Arg *A = 2398 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2399 Opts.DiagnosticSerializationFile = A->getValue(); 2400 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2401 2402 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2403 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2404 if (Args.hasArg(OPT_verify)) 2405 Opts.VerifyPrefixes.push_back("expected"); 2406 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2407 // then sort it to prepare for fast lookup using std::binary_search. 2408 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2409 Opts.VerifyDiagnostics = false; 2410 else 2411 llvm::sort(Opts.VerifyPrefixes); 2412 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2413 parseDiagnosticLevelMask( 2414 "-verify-ignore-unexpected=", 2415 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2416 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2417 DiagMask = DiagnosticLevelMask::All; 2418 Opts.setVerifyIgnoreUnexpected(DiagMask); 2419 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2420 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2421 Diags->Report(diag::warn_ignoring_ftabstop_value) 2422 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2423 } 2424 2425 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2426 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2427 2428 return Diags->getNumErrors() == NumErrorsBefore; 2429 } 2430 2431 /// Parse the argument to the -ftest-module-file-extension 2432 /// command-line argument. 2433 /// 2434 /// \returns true on error, false on success. 2435 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2436 std::string &BlockName, 2437 unsigned &MajorVersion, 2438 unsigned &MinorVersion, 2439 bool &Hashed, 2440 std::string &UserInfo) { 2441 SmallVector<StringRef, 5> Args; 2442 Arg.split(Args, ':', 5); 2443 if (Args.size() < 5) 2444 return true; 2445 2446 BlockName = std::string(Args[0]); 2447 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2448 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2449 if (Args[3].getAsInteger(2, Hashed)) return true; 2450 if (Args.size() > 4) 2451 UserInfo = std::string(Args[4]); 2452 return false; 2453 } 2454 2455 /// Return a table that associates command line option specifiers with the 2456 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2457 /// intentionally missing, as this case is handled separately from other 2458 /// frontend options. 2459 static const auto &getFrontendActionTable() { 2460 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2461 {frontend::ASTDeclList, OPT_ast_list}, 2462 2463 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2464 {frontend::ASTDump, OPT_ast_dump_all}, 2465 {frontend::ASTDump, OPT_ast_dump_EQ}, 2466 {frontend::ASTDump, OPT_ast_dump}, 2467 {frontend::ASTDump, OPT_ast_dump_lookups}, 2468 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2469 2470 {frontend::ASTPrint, OPT_ast_print}, 2471 {frontend::ASTView, OPT_ast_view}, 2472 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2473 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2474 {frontend::DumpTokens, OPT_dump_tokens}, 2475 {frontend::EmitAssembly, OPT_S}, 2476 {frontend::EmitBC, OPT_emit_llvm_bc}, 2477 {frontend::EmitHTML, OPT_emit_html}, 2478 {frontend::EmitLLVM, OPT_emit_llvm}, 2479 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2480 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2481 {frontend::EmitObj, OPT_emit_obj}, 2482 {frontend::ExtractAPI, OPT_extract_api}, 2483 2484 {frontend::FixIt, OPT_fixit_EQ}, 2485 {frontend::FixIt, OPT_fixit}, 2486 2487 {frontend::GenerateModule, OPT_emit_module}, 2488 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2489 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2490 {frontend::GeneratePCH, OPT_emit_pch}, 2491 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2492 {frontend::InitOnly, OPT_init_only}, 2493 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2494 {frontend::ModuleFileInfo, OPT_module_file_info}, 2495 {frontend::VerifyPCH, OPT_verify_pch}, 2496 {frontend::PrintPreamble, OPT_print_preamble}, 2497 {frontend::PrintPreprocessedInput, OPT_E}, 2498 {frontend::TemplightDump, OPT_templight_dump}, 2499 {frontend::RewriteMacros, OPT_rewrite_macros}, 2500 {frontend::RewriteObjC, OPT_rewrite_objc}, 2501 {frontend::RewriteTest, OPT_rewrite_test}, 2502 {frontend::RunAnalysis, OPT_analyze}, 2503 {frontend::MigrateSource, OPT_migrate}, 2504 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2505 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2506 OPT_print_dependency_directives_minimized_source}, 2507 }; 2508 2509 return Table; 2510 } 2511 2512 /// Maps command line option to frontend action. 2513 static std::optional<frontend::ActionKind> 2514 getFrontendAction(OptSpecifier &Opt) { 2515 for (const auto &ActionOpt : getFrontendActionTable()) 2516 if (ActionOpt.second == Opt.getID()) 2517 return ActionOpt.first; 2518 2519 return std::nullopt; 2520 } 2521 2522 /// Maps frontend action to command line option. 2523 static std::optional<OptSpecifier> 2524 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2525 for (const auto &ActionOpt : getFrontendActionTable()) 2526 if (ActionOpt.first == ProgramAction) 2527 return OptSpecifier(ActionOpt.second); 2528 2529 return std::nullopt; 2530 } 2531 2532 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2533 SmallVectorImpl<const char *> &Args, 2534 CompilerInvocation::StringAllocator SA, 2535 bool IsHeader) { 2536 const FrontendOptions &FrontendOpts = Opts; 2537 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2538 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2539 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2540 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2541 MERGER, EXTRACTOR, TABLE_INDEX) \ 2542 GENERATE_OPTION_WITH_MARSHALLING( \ 2543 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2544 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2545 #include "clang/Driver/Options.inc" 2546 #undef FRONTEND_OPTION_WITH_MARSHALLING 2547 2548 std::optional<OptSpecifier> ProgramActionOpt = 2549 getProgramActionOpt(Opts.ProgramAction); 2550 2551 // Generating a simple flag covers most frontend actions. 2552 std::function<void()> GenerateProgramAction = [&]() { 2553 GenerateArg(Args, *ProgramActionOpt, SA); 2554 }; 2555 2556 if (!ProgramActionOpt) { 2557 // PluginAction is the only program action handled separately. 2558 assert(Opts.ProgramAction == frontend::PluginAction && 2559 "Frontend action without option."); 2560 GenerateProgramAction = [&]() { 2561 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2562 }; 2563 } 2564 2565 // FIXME: Simplify the complex 'AST dump' command line. 2566 if (Opts.ProgramAction == frontend::ASTDump) { 2567 GenerateProgramAction = [&]() { 2568 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2569 // marshalling infrastructure. 2570 2571 if (Opts.ASTDumpFormat != ADOF_Default) { 2572 StringRef Format; 2573 switch (Opts.ASTDumpFormat) { 2574 case ADOF_Default: 2575 llvm_unreachable("Default AST dump format."); 2576 case ADOF_JSON: 2577 Format = "json"; 2578 break; 2579 } 2580 2581 if (Opts.ASTDumpAll) 2582 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2583 if (Opts.ASTDumpDecls) 2584 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2585 } else { 2586 if (Opts.ASTDumpAll) 2587 GenerateArg(Args, OPT_ast_dump_all, SA); 2588 if (Opts.ASTDumpDecls) 2589 GenerateArg(Args, OPT_ast_dump, SA); 2590 } 2591 }; 2592 } 2593 2594 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2595 GenerateProgramAction = [&]() { 2596 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2597 }; 2598 } 2599 2600 GenerateProgramAction(); 2601 2602 for (const auto &PluginArgs : Opts.PluginArgs) { 2603 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2604 const char *Spelling = 2605 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2606 for (const auto &PluginArg : PluginArgs.second) 2607 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2608 } 2609 2610 for (const auto &Ext : Opts.ModuleFileExtensions) 2611 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2612 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2613 2614 if (!Opts.CodeCompletionAt.FileName.empty()) 2615 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2616 SA); 2617 2618 for (const auto &Plugin : Opts.Plugins) 2619 GenerateArg(Args, OPT_load, Plugin, SA); 2620 2621 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2622 2623 for (const auto &ModuleFile : Opts.ModuleFiles) 2624 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2625 2626 if (Opts.AuxTargetCPU) 2627 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2628 2629 if (Opts.AuxTargetFeatures) 2630 for (const auto &Feature : *Opts.AuxTargetFeatures) 2631 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2632 2633 { 2634 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2635 StringRef ModuleMap = 2636 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2637 StringRef HeaderUnit = ""; 2638 switch (Opts.DashX.getHeaderUnitKind()) { 2639 case InputKind::HeaderUnit_None: 2640 break; 2641 case InputKind::HeaderUnit_User: 2642 HeaderUnit = "-user"; 2643 break; 2644 case InputKind::HeaderUnit_System: 2645 HeaderUnit = "-system"; 2646 break; 2647 case InputKind::HeaderUnit_Abs: 2648 HeaderUnit = "-header-unit"; 2649 break; 2650 } 2651 StringRef Header = IsHeader ? "-header" : ""; 2652 2653 StringRef Lang; 2654 switch (Opts.DashX.getLanguage()) { 2655 case Language::C: 2656 Lang = "c"; 2657 break; 2658 case Language::OpenCL: 2659 Lang = "cl"; 2660 break; 2661 case Language::OpenCLCXX: 2662 Lang = "clcpp"; 2663 break; 2664 case Language::CUDA: 2665 Lang = "cuda"; 2666 break; 2667 case Language::HIP: 2668 Lang = "hip"; 2669 break; 2670 case Language::CXX: 2671 Lang = "c++"; 2672 break; 2673 case Language::ObjC: 2674 Lang = "objective-c"; 2675 break; 2676 case Language::ObjCXX: 2677 Lang = "objective-c++"; 2678 break; 2679 case Language::RenderScript: 2680 Lang = "renderscript"; 2681 break; 2682 case Language::Asm: 2683 Lang = "assembler-with-cpp"; 2684 break; 2685 case Language::Unknown: 2686 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2687 "Generating -x argument for unknown language (not precompiled)."); 2688 Lang = "ast"; 2689 break; 2690 case Language::LLVM_IR: 2691 Lang = "ir"; 2692 break; 2693 case Language::HLSL: 2694 Lang = "hlsl"; 2695 break; 2696 } 2697 2698 GenerateArg(Args, OPT_x, 2699 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2700 } 2701 2702 // OPT_INPUT has a unique class, generate it directly. 2703 for (const auto &Input : Opts.Inputs) 2704 Args.push_back(SA(Input.getFile())); 2705 } 2706 2707 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2708 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2709 unsigned NumErrorsBefore = Diags.getNumErrors(); 2710 2711 FrontendOptions &FrontendOpts = Opts; 2712 2713 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2714 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2715 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2716 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2717 MERGER, EXTRACTOR, TABLE_INDEX) \ 2718 PARSE_OPTION_WITH_MARSHALLING( \ 2719 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2720 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2721 #include "clang/Driver/Options.inc" 2722 #undef FRONTEND_OPTION_WITH_MARSHALLING 2723 2724 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2725 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2726 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2727 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2728 assert(ProgramAction && "Option specifier not in Action_Group."); 2729 2730 if (ProgramAction == frontend::ASTDump && 2731 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2732 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2733 .CaseLower("default", ADOF_Default) 2734 .CaseLower("json", ADOF_JSON) 2735 .Default(std::numeric_limits<unsigned>::max()); 2736 2737 if (Val != std::numeric_limits<unsigned>::max()) 2738 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2739 else { 2740 Diags.Report(diag::err_drv_invalid_value) 2741 << A->getAsString(Args) << A->getValue(); 2742 Opts.ASTDumpFormat = ADOF_Default; 2743 } 2744 } 2745 2746 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2747 Opts.FixItSuffix = A->getValue(); 2748 2749 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2750 StringRef ArgStr = 2751 Args.hasArg(OPT_interface_stub_version_EQ) 2752 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2753 : "ifs-v1"; 2754 if (ArgStr == "experimental-yaml-elf-v1" || 2755 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2756 ArgStr == "experimental-tapi-elf-v1") { 2757 std::string ErrorMessage = 2758 "Invalid interface stub format: " + ArgStr.str() + 2759 " is deprecated."; 2760 Diags.Report(diag::err_drv_invalid_value) 2761 << "Must specify a valid interface stub format type, ie: " 2762 "-interface-stub-version=ifs-v1" 2763 << ErrorMessage; 2764 ProgramAction = frontend::ParseSyntaxOnly; 2765 } else if (!ArgStr.startswith("ifs-")) { 2766 std::string ErrorMessage = 2767 "Invalid interface stub format: " + ArgStr.str() + "."; 2768 Diags.Report(diag::err_drv_invalid_value) 2769 << "Must specify a valid interface stub format type, ie: " 2770 "-interface-stub-version=ifs-v1" 2771 << ErrorMessage; 2772 ProgramAction = frontend::ParseSyntaxOnly; 2773 } 2774 } 2775 2776 Opts.ProgramAction = *ProgramAction; 2777 } 2778 2779 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2780 Opts.Plugins.emplace_back(A->getValue(0)); 2781 Opts.ProgramAction = frontend::PluginAction; 2782 Opts.ActionName = A->getValue(); 2783 } 2784 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2785 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2786 2787 for (const std::string &Arg : 2788 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2789 std::string BlockName; 2790 unsigned MajorVersion; 2791 unsigned MinorVersion; 2792 bool Hashed; 2793 std::string UserInfo; 2794 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2795 MinorVersion, Hashed, UserInfo)) { 2796 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2797 2798 continue; 2799 } 2800 2801 // Add the testing module file extension. 2802 Opts.ModuleFileExtensions.push_back( 2803 std::make_shared<TestModuleFileExtension>( 2804 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2805 } 2806 2807 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2808 Opts.CodeCompletionAt = 2809 ParsedSourceLocation::FromString(A->getValue()); 2810 if (Opts.CodeCompletionAt.FileName.empty()) 2811 Diags.Report(diag::err_drv_invalid_value) 2812 << A->getAsString(Args) << A->getValue(); 2813 } 2814 2815 Opts.Plugins = Args.getAllArgValues(OPT_load); 2816 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2817 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2818 // Only the -fmodule-file=<file> form. 2819 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2820 StringRef Val = A->getValue(); 2821 if (!Val.contains('=')) 2822 Opts.ModuleFiles.push_back(std::string(Val)); 2823 } 2824 2825 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2826 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2827 << "-emit-module"; 2828 2829 if (Args.hasArg(OPT_aux_target_cpu)) 2830 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2831 if (Args.hasArg(OPT_aux_target_feature)) 2832 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2833 2834 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2835 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2836 Diags.Report(diag::err_drv_argument_not_allowed_with) 2837 << "ARC migration" << "ObjC migration"; 2838 } 2839 2840 InputKind DashX(Language::Unknown); 2841 if (const Arg *A = Args.getLastArg(OPT_x)) { 2842 StringRef XValue = A->getValue(); 2843 2844 // Parse suffixes: 2845 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2846 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2847 bool Preprocessed = XValue.consume_back("-cpp-output"); 2848 bool ModuleMap = XValue.consume_back("-module-map"); 2849 // Detect and consume the header indicator. 2850 bool IsHeader = 2851 XValue != "precompiled-header" && XValue.consume_back("-header"); 2852 2853 // If we have c++-{user,system}-header, that indicates a header unit input 2854 // likewise, if the user put -fmodule-header together with a header with an 2855 // absolute path (header-unit-header). 2856 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2857 if (IsHeader || Preprocessed) { 2858 if (XValue.consume_back("-header-unit")) 2859 HUK = InputKind::HeaderUnit_Abs; 2860 else if (XValue.consume_back("-system")) 2861 HUK = InputKind::HeaderUnit_System; 2862 else if (XValue.consume_back("-user")) 2863 HUK = InputKind::HeaderUnit_User; 2864 } 2865 2866 // The value set by this processing is an un-preprocessed source which is 2867 // not intended to be a module map or header unit. 2868 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2869 HUK == InputKind::HeaderUnit_None; 2870 2871 // Principal languages. 2872 DashX = llvm::StringSwitch<InputKind>(XValue) 2873 .Case("c", Language::C) 2874 .Case("cl", Language::OpenCL) 2875 .Case("clcpp", Language::OpenCLCXX) 2876 .Case("cuda", Language::CUDA) 2877 .Case("hip", Language::HIP) 2878 .Case("c++", Language::CXX) 2879 .Case("objective-c", Language::ObjC) 2880 .Case("objective-c++", Language::ObjCXX) 2881 .Case("renderscript", Language::RenderScript) 2882 .Case("hlsl", Language::HLSL) 2883 .Default(Language::Unknown); 2884 2885 // "objc[++]-cpp-output" is an acceptable synonym for 2886 // "objective-c[++]-cpp-output". 2887 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2888 HUK == InputKind::HeaderUnit_None) 2889 DashX = llvm::StringSwitch<InputKind>(XValue) 2890 .Case("objc", Language::ObjC) 2891 .Case("objc++", Language::ObjCXX) 2892 .Default(Language::Unknown); 2893 2894 // Some special cases cannot be combined with suffixes. 2895 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2896 HUK == InputKind::HeaderUnit_None) 2897 DashX = llvm::StringSwitch<InputKind>(XValue) 2898 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2899 .Case("assembler-with-cpp", Language::Asm) 2900 .Cases("ast", "pcm", "precompiled-header", 2901 InputKind(Language::Unknown, InputKind::Precompiled)) 2902 .Case("ir", Language::LLVM_IR) 2903 .Default(Language::Unknown); 2904 2905 if (DashX.isUnknown()) 2906 Diags.Report(diag::err_drv_invalid_value) 2907 << A->getAsString(Args) << A->getValue(); 2908 2909 if (Preprocessed) 2910 DashX = DashX.getPreprocessed(); 2911 // A regular header is considered mutually exclusive with a header unit. 2912 if (HUK != InputKind::HeaderUnit_None) { 2913 DashX = DashX.withHeaderUnit(HUK); 2914 IsHeaderFile = true; 2915 } else if (IsHeaderFile) 2916 DashX = DashX.getHeader(); 2917 if (ModuleMap) 2918 DashX = DashX.withFormat(InputKind::ModuleMap); 2919 } 2920 2921 // '-' is the default input if none is given. 2922 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2923 Opts.Inputs.clear(); 2924 if (Inputs.empty()) 2925 Inputs.push_back("-"); 2926 2927 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2928 Inputs.size() > 1) 2929 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2930 2931 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2932 InputKind IK = DashX; 2933 if (IK.isUnknown()) { 2934 IK = FrontendOptions::getInputKindForExtension( 2935 StringRef(Inputs[i]).rsplit('.').second); 2936 // FIXME: Warn on this? 2937 if (IK.isUnknown()) 2938 IK = Language::C; 2939 // FIXME: Remove this hack. 2940 if (i == 0) 2941 DashX = IK; 2942 } 2943 2944 bool IsSystem = false; 2945 2946 // The -emit-module action implicitly takes a module map. 2947 if (Opts.ProgramAction == frontend::GenerateModule && 2948 IK.getFormat() == InputKind::Source) { 2949 IK = IK.withFormat(InputKind::ModuleMap); 2950 IsSystem = Opts.IsSystemModule; 2951 } 2952 2953 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2954 } 2955 2956 Opts.DashX = DashX; 2957 2958 return Diags.getNumErrors() == NumErrorsBefore; 2959 } 2960 2961 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2962 void *MainAddr) { 2963 std::string ClangExecutable = 2964 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2965 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2966 } 2967 2968 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2969 SmallVectorImpl<const char *> &Args, 2970 CompilerInvocation::StringAllocator SA) { 2971 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2972 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2973 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2974 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2975 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2976 MERGER, EXTRACTOR, TABLE_INDEX) \ 2977 GENERATE_OPTION_WITH_MARSHALLING( \ 2978 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2979 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2980 #include "clang/Driver/Options.inc" 2981 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2982 2983 if (Opts.UseLibcxx) 2984 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2985 2986 if (!Opts.ModuleCachePath.empty()) 2987 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2988 2989 for (const auto &File : Opts.PrebuiltModuleFiles) 2990 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2991 2992 for (const auto &Path : Opts.PrebuiltModulePaths) 2993 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2994 2995 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2996 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2997 2998 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2999 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3000 std::optional<bool> IsFramework, 3001 std::optional<bool> IgnoreSysRoot) { 3002 return llvm::is_contained(Groups, Entry.Group) && 3003 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3004 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3005 }; 3006 3007 auto It = Opts.UserEntries.begin(); 3008 auto End = Opts.UserEntries.end(); 3009 3010 // Add -I..., -F..., and -index-header-map options in order. 3011 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3012 std::nullopt, true); 3013 ++It) { 3014 OptSpecifier Opt = [It, Matches]() { 3015 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3016 return OPT_F; 3017 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3018 return OPT_I; 3019 if (Matches(*It, frontend::Angled, true, true)) 3020 return OPT_F; 3021 if (Matches(*It, frontend::Angled, false, true)) 3022 return OPT_I; 3023 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3024 }(); 3025 3026 if (It->Group == frontend::IndexHeaderMap) 3027 GenerateArg(Args, OPT_index_header_map, SA); 3028 GenerateArg(Args, Opt, It->Path, SA); 3029 }; 3030 3031 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3032 // have already been generated as "-I[xx]yy". If that's the case, their 3033 // position on command line was such that this has no semantic impact on 3034 // include paths. 3035 for (; It < End && 3036 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3037 ++It) { 3038 OptSpecifier Opt = 3039 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3040 GenerateArg(Args, Opt, It->Path, SA); 3041 } 3042 3043 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3044 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3045 // command line was such that this has no semantic impact on include paths. 3046 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3047 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3048 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3049 GenerateArg(Args, OPT_iquote, It->Path, SA); 3050 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3051 ++It) 3052 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3053 It->Path, SA); 3054 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3055 GenerateArg(Args, OPT_iframework, It->Path, SA); 3056 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3057 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3058 3059 // Add the paths for the various language specific isystem flags. 3060 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3061 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3062 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3063 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3064 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3065 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3066 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3067 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3068 3069 // Add the internal paths from a driver that detects standard include paths. 3070 // Note: Some paths that came from "-internal-isystem" arguments may have 3071 // already been generated as "-isystem". If that's the case, their position on 3072 // command line was such that this has no semantic impact on include paths. 3073 for (; It < End && 3074 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3075 ++It) { 3076 OptSpecifier Opt = It->Group == frontend::System 3077 ? OPT_internal_isystem 3078 : OPT_internal_externc_isystem; 3079 GenerateArg(Args, Opt, It->Path, SA); 3080 } 3081 3082 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3083 3084 // Add the path prefixes which are implicitly treated as being system headers. 3085 for (const auto &P : Opts.SystemHeaderPrefixes) { 3086 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3087 : OPT_no_system_header_prefix; 3088 GenerateArg(Args, Opt, P.Prefix, SA); 3089 } 3090 3091 for (const std::string &F : Opts.VFSOverlayFiles) 3092 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3093 } 3094 3095 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3096 DiagnosticsEngine &Diags, 3097 const std::string &WorkingDir) { 3098 unsigned NumErrorsBefore = Diags.getNumErrors(); 3099 3100 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3101 3102 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3103 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3104 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3105 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3106 MERGER, EXTRACTOR, TABLE_INDEX) \ 3107 PARSE_OPTION_WITH_MARSHALLING( \ 3108 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3109 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3110 #include "clang/Driver/Options.inc" 3111 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3112 3113 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3114 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3115 3116 // Canonicalize -fmodules-cache-path before storing it. 3117 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3118 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3119 if (WorkingDir.empty()) 3120 llvm::sys::fs::make_absolute(P); 3121 else 3122 llvm::sys::fs::make_absolute(WorkingDir, P); 3123 } 3124 llvm::sys::path::remove_dots(P); 3125 Opts.ModuleCachePath = std::string(P.str()); 3126 3127 // Only the -fmodule-file=<name>=<file> form. 3128 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3129 StringRef Val = A->getValue(); 3130 if (Val.contains('=')) { 3131 auto Split = Val.split('='); 3132 Opts.PrebuiltModuleFiles.insert( 3133 {std::string(Split.first), std::string(Split.second)}); 3134 } 3135 } 3136 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3137 Opts.AddPrebuiltModulePath(A->getValue()); 3138 3139 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3140 StringRef MacroDef = A->getValue(); 3141 Opts.ModulesIgnoreMacros.insert( 3142 llvm::CachedHashString(MacroDef.split('=').first)); 3143 } 3144 3145 // Add -I..., -F..., and -index-header-map options in order. 3146 bool IsIndexHeaderMap = false; 3147 bool IsSysrootSpecified = 3148 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3149 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3150 if (A->getOption().matches(OPT_index_header_map)) { 3151 // -index-header-map applies to the next -I or -F. 3152 IsIndexHeaderMap = true; 3153 continue; 3154 } 3155 3156 frontend::IncludeDirGroup Group = 3157 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3158 3159 bool IsFramework = A->getOption().matches(OPT_F); 3160 std::string Path = A->getValue(); 3161 3162 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3163 SmallString<32> Buffer; 3164 llvm::sys::path::append(Buffer, Opts.Sysroot, 3165 llvm::StringRef(A->getValue()).substr(1)); 3166 Path = std::string(Buffer.str()); 3167 } 3168 3169 Opts.AddPath(Path, Group, IsFramework, 3170 /*IgnoreSysroot*/ true); 3171 IsIndexHeaderMap = false; 3172 } 3173 3174 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3175 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3176 for (const auto *A : 3177 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3178 if (A->getOption().matches(OPT_iprefix)) 3179 Prefix = A->getValue(); 3180 else if (A->getOption().matches(OPT_iwithprefix)) 3181 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3182 else 3183 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3184 } 3185 3186 for (const auto *A : Args.filtered(OPT_idirafter)) 3187 Opts.AddPath(A->getValue(), frontend::After, false, true); 3188 for (const auto *A : Args.filtered(OPT_iquote)) 3189 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3190 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3191 Opts.AddPath(A->getValue(), frontend::System, false, 3192 !A->getOption().matches(OPT_iwithsysroot)); 3193 for (const auto *A : Args.filtered(OPT_iframework)) 3194 Opts.AddPath(A->getValue(), frontend::System, true, true); 3195 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3196 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3197 /*IgnoreSysRoot=*/false); 3198 3199 // Add the paths for the various language specific isystem flags. 3200 for (const auto *A : Args.filtered(OPT_c_isystem)) 3201 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3202 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3203 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3204 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3205 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3206 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3207 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3208 3209 // Add the internal paths from a driver that detects standard include paths. 3210 for (const auto *A : 3211 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3212 frontend::IncludeDirGroup Group = frontend::System; 3213 if (A->getOption().matches(OPT_internal_externc_isystem)) 3214 Group = frontend::ExternCSystem; 3215 Opts.AddPath(A->getValue(), Group, false, true); 3216 } 3217 3218 // Add the path prefixes which are implicitly treated as being system headers. 3219 for (const auto *A : 3220 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3221 Opts.AddSystemHeaderPrefix( 3222 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3223 3224 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3225 Opts.AddVFSOverlayFile(A->getValue()); 3226 3227 return Diags.getNumErrors() == NumErrorsBefore; 3228 } 3229 3230 /// Check if input file kind and language standard are compatible. 3231 static bool IsInputCompatibleWithStandard(InputKind IK, 3232 const LangStandard &S) { 3233 switch (IK.getLanguage()) { 3234 case Language::Unknown: 3235 case Language::LLVM_IR: 3236 llvm_unreachable("should not parse language flags for this input"); 3237 3238 case Language::C: 3239 case Language::ObjC: 3240 case Language::RenderScript: 3241 return S.getLanguage() == Language::C; 3242 3243 case Language::OpenCL: 3244 return S.getLanguage() == Language::OpenCL || 3245 S.getLanguage() == Language::OpenCLCXX; 3246 3247 case Language::OpenCLCXX: 3248 return S.getLanguage() == Language::OpenCLCXX; 3249 3250 case Language::CXX: 3251 case Language::ObjCXX: 3252 return S.getLanguage() == Language::CXX; 3253 3254 case Language::CUDA: 3255 // FIXME: What -std= values should be permitted for CUDA compilations? 3256 return S.getLanguage() == Language::CUDA || 3257 S.getLanguage() == Language::CXX; 3258 3259 case Language::HIP: 3260 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3261 3262 case Language::Asm: 3263 // Accept (and ignore) all -std= values. 3264 // FIXME: The -std= value is not ignored; it affects the tokenization 3265 // and preprocessing rules if we're preprocessing this asm input. 3266 return true; 3267 3268 case Language::HLSL: 3269 return S.getLanguage() == Language::HLSL; 3270 } 3271 3272 llvm_unreachable("unexpected input language"); 3273 } 3274 3275 /// Get language name for given input kind. 3276 static StringRef GetInputKindName(InputKind IK) { 3277 switch (IK.getLanguage()) { 3278 case Language::C: 3279 return "C"; 3280 case Language::ObjC: 3281 return "Objective-C"; 3282 case Language::CXX: 3283 return "C++"; 3284 case Language::ObjCXX: 3285 return "Objective-C++"; 3286 case Language::OpenCL: 3287 return "OpenCL"; 3288 case Language::OpenCLCXX: 3289 return "C++ for OpenCL"; 3290 case Language::CUDA: 3291 return "CUDA"; 3292 case Language::RenderScript: 3293 return "RenderScript"; 3294 case Language::HIP: 3295 return "HIP"; 3296 3297 case Language::Asm: 3298 return "Asm"; 3299 case Language::LLVM_IR: 3300 return "LLVM IR"; 3301 3302 case Language::HLSL: 3303 return "HLSL"; 3304 3305 case Language::Unknown: 3306 break; 3307 } 3308 llvm_unreachable("unknown input language"); 3309 } 3310 3311 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3312 SmallVectorImpl<const char *> &Args, 3313 StringAllocator SA, 3314 const llvm::Triple &T, InputKind IK) { 3315 if (IK.getFormat() == InputKind::Precompiled || 3316 IK.getLanguage() == Language::LLVM_IR) { 3317 if (Opts.ObjCAutoRefCount) 3318 GenerateArg(Args, OPT_fobjc_arc, SA); 3319 if (Opts.PICLevel != 0) 3320 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3321 if (Opts.PIE) 3322 GenerateArg(Args, OPT_pic_is_pie, SA); 3323 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3324 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3325 3326 return; 3327 } 3328 3329 OptSpecifier StdOpt; 3330 switch (Opts.LangStd) { 3331 case LangStandard::lang_opencl10: 3332 case LangStandard::lang_opencl11: 3333 case LangStandard::lang_opencl12: 3334 case LangStandard::lang_opencl20: 3335 case LangStandard::lang_opencl30: 3336 case LangStandard::lang_openclcpp10: 3337 case LangStandard::lang_openclcpp2021: 3338 StdOpt = OPT_cl_std_EQ; 3339 break; 3340 default: 3341 StdOpt = OPT_std_EQ; 3342 break; 3343 } 3344 3345 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3346 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3347 3348 if (Opts.IncludeDefaultHeader) 3349 GenerateArg(Args, OPT_finclude_default_header, SA); 3350 if (Opts.DeclareOpenCLBuiltins) 3351 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3352 3353 const LangOptions *LangOpts = &Opts; 3354 3355 #define LANG_OPTION_WITH_MARSHALLING( \ 3356 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3357 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3358 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3359 MERGER, EXTRACTOR, TABLE_INDEX) \ 3360 GENERATE_OPTION_WITH_MARSHALLING( \ 3361 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3362 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3363 #include "clang/Driver/Options.inc" 3364 #undef LANG_OPTION_WITH_MARSHALLING 3365 3366 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3367 3368 if (Opts.ObjC) { 3369 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3370 3371 if (Opts.GC == LangOptions::GCOnly) 3372 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3373 else if (Opts.GC == LangOptions::HybridGC) 3374 GenerateArg(Args, OPT_fobjc_gc, SA); 3375 else if (Opts.ObjCAutoRefCount == 1) 3376 GenerateArg(Args, OPT_fobjc_arc, SA); 3377 3378 if (Opts.ObjCWeakRuntime) 3379 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3380 3381 if (Opts.ObjCWeak) 3382 GenerateArg(Args, OPT_fobjc_weak, SA); 3383 3384 if (Opts.ObjCSubscriptingLegacyRuntime) 3385 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3386 } 3387 3388 if (Opts.GNUCVersion != 0) { 3389 unsigned Major = Opts.GNUCVersion / 100 / 100; 3390 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3391 unsigned Patch = Opts.GNUCVersion % 100; 3392 GenerateArg(Args, OPT_fgnuc_version_EQ, 3393 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3394 } 3395 3396 if (Opts.IgnoreXCOFFVisibility) 3397 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3398 3399 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3400 GenerateArg(Args, OPT_ftrapv, SA); 3401 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3402 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3403 GenerateArg(Args, OPT_fwrapv, SA); 3404 } 3405 3406 if (Opts.MSCompatibilityVersion != 0) { 3407 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3408 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3409 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3410 GenerateArg(Args, OPT_fms_compatibility_version, 3411 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3412 } 3413 3414 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3415 if (!Opts.Trigraphs) 3416 GenerateArg(Args, OPT_fno_trigraphs, SA); 3417 } else { 3418 if (Opts.Trigraphs) 3419 GenerateArg(Args, OPT_ftrigraphs, SA); 3420 } 3421 3422 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3423 GenerateArg(Args, OPT_fblocks, SA); 3424 3425 if (Opts.ConvergentFunctions && 3426 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3427 GenerateArg(Args, OPT_fconvergent_functions, SA); 3428 3429 if (Opts.NoBuiltin && !Opts.Freestanding) 3430 GenerateArg(Args, OPT_fno_builtin, SA); 3431 3432 if (!Opts.NoBuiltin) 3433 for (const auto &Func : Opts.NoBuiltinFuncs) 3434 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3435 3436 if (Opts.LongDoubleSize == 128) 3437 GenerateArg(Args, OPT_mlong_double_128, SA); 3438 else if (Opts.LongDoubleSize == 64) 3439 GenerateArg(Args, OPT_mlong_double_64, SA); 3440 else if (Opts.LongDoubleSize == 80) 3441 GenerateArg(Args, OPT_mlong_double_80, SA); 3442 3443 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3444 3445 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3446 // '-fopenmp-targets='. 3447 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3448 GenerateArg(Args, OPT_fopenmp, SA); 3449 3450 if (Opts.OpenMP != 50) 3451 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3452 3453 if (!Opts.OpenMPUseTLS) 3454 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3455 3456 if (Opts.OpenMPIsDevice) 3457 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3458 3459 if (Opts.OpenMPIRBuilder) 3460 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3461 } 3462 3463 if (Opts.OpenMPSimd) { 3464 GenerateArg(Args, OPT_fopenmp_simd, SA); 3465 3466 if (Opts.OpenMP != 50) 3467 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3468 } 3469 3470 if (Opts.OpenMPThreadSubscription) 3471 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3472 3473 if (Opts.OpenMPTeamSubscription) 3474 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3475 3476 if (Opts.OpenMPTargetDebug != 0) 3477 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3478 Twine(Opts.OpenMPTargetDebug), SA); 3479 3480 if (Opts.OpenMPCUDANumSMs != 0) 3481 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3482 Twine(Opts.OpenMPCUDANumSMs), SA); 3483 3484 if (Opts.OpenMPCUDABlocksPerSM != 0) 3485 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3486 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3487 3488 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3489 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3490 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3491 3492 if (!Opts.OMPTargetTriples.empty()) { 3493 std::string Targets; 3494 llvm::raw_string_ostream OS(Targets); 3495 llvm::interleave( 3496 Opts.OMPTargetTriples, OS, 3497 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3498 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3499 } 3500 3501 if (!Opts.OMPHostIRFile.empty()) 3502 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3503 3504 if (Opts.OpenMPCUDAMode) 3505 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3506 3507 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3508 // generated from CodeGenOptions. 3509 3510 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3511 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3512 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3513 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3514 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3515 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3516 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3517 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3518 3519 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3520 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3521 3522 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3523 for (const std::string &F : Opts.NoSanitizeFiles) 3524 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3525 3526 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3527 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3528 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3529 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3530 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3531 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3532 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3533 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3534 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3535 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3536 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3537 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3538 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3539 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3540 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3541 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3542 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver15) 3543 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "15.0", SA); 3544 3545 if (Opts.getSignReturnAddressScope() == 3546 LangOptions::SignReturnAddressScopeKind::All) 3547 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3548 else if (Opts.getSignReturnAddressScope() == 3549 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3550 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3551 3552 if (Opts.getSignReturnAddressKey() == 3553 LangOptions::SignReturnAddressKeyKind::BKey) 3554 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3555 3556 if (Opts.CXXABI) 3557 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3558 SA); 3559 3560 if (Opts.RelativeCXXABIVTables) 3561 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3562 else 3563 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3564 3565 if (Opts.UseTargetPathSeparator) 3566 GenerateArg(Args, OPT_ffile_reproducible, SA); 3567 else 3568 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3569 3570 for (const auto &MP : Opts.MacroPrefixMap) 3571 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3572 3573 if (!Opts.RandstructSeed.empty()) 3574 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3575 } 3576 3577 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3578 InputKind IK, const llvm::Triple &T, 3579 std::vector<std::string> &Includes, 3580 DiagnosticsEngine &Diags) { 3581 unsigned NumErrorsBefore = Diags.getNumErrors(); 3582 3583 if (IK.getFormat() == InputKind::Precompiled || 3584 IK.getLanguage() == Language::LLVM_IR) { 3585 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3586 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3587 // what the input type is. 3588 if (Args.hasArg(OPT_fobjc_arc)) 3589 Opts.ObjCAutoRefCount = 1; 3590 // PICLevel and PIELevel are needed during code generation and this should 3591 // be set regardless of the input type. 3592 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3593 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3594 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3595 Diags, Opts.Sanitize); 3596 3597 return Diags.getNumErrors() == NumErrorsBefore; 3598 } 3599 3600 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3601 // FIXME: Should we really be parsing this for an Language::Asm input? 3602 3603 // FIXME: Cleanup per-file based stuff. 3604 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3605 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3606 LangStd = LangStandard::getLangKind(A->getValue()); 3607 if (LangStd == LangStandard::lang_unspecified) { 3608 Diags.Report(diag::err_drv_invalid_value) 3609 << A->getAsString(Args) << A->getValue(); 3610 // Report supported standards with short description. 3611 for (unsigned KindValue = 0; 3612 KindValue != LangStandard::lang_unspecified; 3613 ++KindValue) { 3614 const LangStandard &Std = LangStandard::getLangStandardForKind( 3615 static_cast<LangStandard::Kind>(KindValue)); 3616 if (IsInputCompatibleWithStandard(IK, Std)) { 3617 auto Diag = Diags.Report(diag::note_drv_use_standard); 3618 Diag << Std.getName() << Std.getDescription(); 3619 unsigned NumAliases = 0; 3620 #define LANGSTANDARD(id, name, lang, desc, features) 3621 #define LANGSTANDARD_ALIAS(id, alias) \ 3622 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3623 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3624 #include "clang/Basic/LangStandards.def" 3625 Diag << NumAliases; 3626 #define LANGSTANDARD(id, name, lang, desc, features) 3627 #define LANGSTANDARD_ALIAS(id, alias) \ 3628 if (KindValue == LangStandard::lang_##id) Diag << alias; 3629 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3630 #include "clang/Basic/LangStandards.def" 3631 } 3632 } 3633 } else { 3634 // Valid standard, check to make sure language and standard are 3635 // compatible. 3636 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3637 if (!IsInputCompatibleWithStandard(IK, Std)) { 3638 Diags.Report(diag::err_drv_argument_not_allowed_with) 3639 << A->getAsString(Args) << GetInputKindName(IK); 3640 } 3641 } 3642 } 3643 3644 // -cl-std only applies for OpenCL language standards. 3645 // Override the -std option in this case. 3646 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3647 LangStandard::Kind OpenCLLangStd 3648 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3649 .Cases("cl", "CL", LangStandard::lang_opencl10) 3650 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3651 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3652 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3653 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3654 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3655 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3656 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3657 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3658 .Default(LangStandard::lang_unspecified); 3659 3660 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3661 Diags.Report(diag::err_drv_invalid_value) 3662 << A->getAsString(Args) << A->getValue(); 3663 } 3664 else 3665 LangStd = OpenCLLangStd; 3666 } 3667 3668 // These need to be parsed now. They are used to set OpenCL defaults. 3669 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3670 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3671 3672 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3673 3674 // The key paths of codegen options defined in Options.td start with 3675 // "LangOpts->". Let's provide the expected variable name and type. 3676 LangOptions *LangOpts = &Opts; 3677 3678 #define LANG_OPTION_WITH_MARSHALLING( \ 3679 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3680 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3681 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3682 MERGER, EXTRACTOR, TABLE_INDEX) \ 3683 PARSE_OPTION_WITH_MARSHALLING( \ 3684 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3685 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3686 #include "clang/Driver/Options.inc" 3687 #undef LANG_OPTION_WITH_MARSHALLING 3688 3689 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3690 StringRef Name = A->getValue(); 3691 if (Name == "full" || Name == "branch") { 3692 Opts.CFProtectionBranch = 1; 3693 } 3694 } 3695 3696 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3697 !Args.hasArg(OPT_sycl_std_EQ)) { 3698 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3699 // provide -sycl-std=, we want to default it to whatever the default SYCL 3700 // version is. I could not find a way to express this with the options 3701 // tablegen because we still want this value to be SYCL_None when the user 3702 // is not in device or host mode. 3703 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3704 } 3705 3706 if (Opts.ObjC) { 3707 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3708 StringRef value = arg->getValue(); 3709 if (Opts.ObjCRuntime.tryParse(value)) 3710 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3711 } 3712 3713 if (Args.hasArg(OPT_fobjc_gc_only)) 3714 Opts.setGC(LangOptions::GCOnly); 3715 else if (Args.hasArg(OPT_fobjc_gc)) 3716 Opts.setGC(LangOptions::HybridGC); 3717 else if (Args.hasArg(OPT_fobjc_arc)) { 3718 Opts.ObjCAutoRefCount = 1; 3719 if (!Opts.ObjCRuntime.allowsARC()) 3720 Diags.Report(diag::err_arc_unsupported_on_runtime); 3721 } 3722 3723 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3724 // whether the feature is actually enabled. This is predominantly 3725 // determined by -fobjc-runtime, but we allow it to be overridden 3726 // from the command line for testing purposes. 3727 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3728 Opts.ObjCWeakRuntime = 1; 3729 else 3730 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3731 3732 // ObjCWeak determines whether __weak is actually enabled. 3733 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3734 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3735 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3736 assert(!Opts.ObjCWeak); 3737 } else if (Opts.getGC() != LangOptions::NonGC) { 3738 Diags.Report(diag::err_objc_weak_with_gc); 3739 } else if (!Opts.ObjCWeakRuntime) { 3740 Diags.Report(diag::err_objc_weak_unsupported); 3741 } else { 3742 Opts.ObjCWeak = 1; 3743 } 3744 } else if (Opts.ObjCAutoRefCount) { 3745 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3746 } 3747 3748 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3749 Opts.ObjCSubscriptingLegacyRuntime = 3750 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3751 } 3752 3753 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3754 // Check that the version has 1 to 3 components and the minor and patch 3755 // versions fit in two decimal digits. 3756 VersionTuple GNUCVer; 3757 bool Invalid = GNUCVer.tryParse(A->getValue()); 3758 unsigned Major = GNUCVer.getMajor(); 3759 unsigned Minor = GNUCVer.getMinor().value_or(0); 3760 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3761 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3762 Diags.Report(diag::err_drv_invalid_value) 3763 << A->getAsString(Args) << A->getValue(); 3764 } 3765 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3766 } 3767 3768 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3769 Opts.IgnoreXCOFFVisibility = 1; 3770 3771 if (Args.hasArg(OPT_ftrapv)) { 3772 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3773 // Set the handler, if one is specified. 3774 Opts.OverflowHandler = 3775 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3776 } 3777 else if (Args.hasArg(OPT_fwrapv)) 3778 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3779 3780 Opts.MSCompatibilityVersion = 0; 3781 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3782 VersionTuple VT; 3783 if (VT.tryParse(A->getValue())) 3784 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3785 << A->getValue(); 3786 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3787 VT.getMinor().value_or(0) * 100000 + 3788 VT.getSubminor().value_or(0); 3789 } 3790 3791 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3792 // is specified, or -std is set to a conforming mode. 3793 // Trigraphs are disabled by default in c++1z onwards. 3794 // For z/OS, trigraphs are enabled by default (without regard to the above). 3795 Opts.Trigraphs = 3796 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3797 Opts.Trigraphs = 3798 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3799 3800 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3801 && Opts.OpenCLVersion == 200); 3802 3803 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3804 Opts.SYCLIsDevice || 3805 Args.hasArg(OPT_fconvergent_functions); 3806 3807 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3808 if (!Opts.NoBuiltin) 3809 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3810 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3811 if (A->getOption().matches(options::OPT_mlong_double_64)) 3812 Opts.LongDoubleSize = 64; 3813 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3814 Opts.LongDoubleSize = 80; 3815 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3816 Opts.LongDoubleSize = 128; 3817 else 3818 Opts.LongDoubleSize = 0; 3819 } 3820 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 3821 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3822 3823 llvm::sort(Opts.ModuleFeatures); 3824 3825 // -mrtd option 3826 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3827 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3828 Diags.Report(diag::err_drv_argument_not_allowed_with) 3829 << A->getSpelling() << "-fdefault-calling-conv"; 3830 else { 3831 if (T.getArch() != llvm::Triple::x86) 3832 Diags.Report(diag::err_drv_argument_not_allowed_with) 3833 << A->getSpelling() << T.getTriple(); 3834 else 3835 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3836 } 3837 } 3838 3839 // Check if -fopenmp is specified and set default version to 5.0. 3840 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3841 // Check if -fopenmp-simd is specified. 3842 bool IsSimdSpecified = 3843 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3844 /*Default=*/false); 3845 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3846 Opts.OpenMPUseTLS = 3847 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3848 Opts.OpenMPIsDevice = 3849 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3850 Opts.OpenMPIRBuilder = 3851 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3852 bool IsTargetSpecified = 3853 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3854 3855 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3856 3857 if (Opts.OpenMP || Opts.OpenMPSimd) { 3858 if (int Version = getLastArgIntValue( 3859 Args, OPT_fopenmp_version_EQ, 3860 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3861 Opts.OpenMP = Version; 3862 // Provide diagnostic when a given target is not expected to be an OpenMP 3863 // device or host. 3864 if (!Opts.OpenMPIsDevice) { 3865 switch (T.getArch()) { 3866 default: 3867 break; 3868 // Add unsupported host targets here: 3869 case llvm::Triple::nvptx: 3870 case llvm::Triple::nvptx64: 3871 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3872 break; 3873 } 3874 } 3875 } 3876 3877 // Set the flag to prevent the implementation from emitting device exception 3878 // handling code for those requiring so. 3879 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3880 Opts.OpenCLCPlusPlus) { 3881 3882 Opts.Exceptions = 0; 3883 Opts.CXXExceptions = 0; 3884 } 3885 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3886 Opts.OpenMPCUDANumSMs = 3887 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3888 Opts.OpenMPCUDANumSMs, Diags); 3889 Opts.OpenMPCUDABlocksPerSM = 3890 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3891 Opts.OpenMPCUDABlocksPerSM, Diags); 3892 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3893 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3894 Opts.OpenMPCUDAReductionBufNum, Diags); 3895 } 3896 3897 // Set the value of the debugging flag used in the new offloading device RTL. 3898 // Set either by a specific value or to a default if not specified. 3899 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3900 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3901 Opts.OpenMPTargetDebug = getLastArgIntValue( 3902 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3903 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3904 Opts.OpenMPTargetDebug = 1; 3905 } 3906 3907 if (Opts.OpenMPIsDevice) { 3908 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3909 Opts.OpenMPTeamSubscription = true; 3910 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3911 Opts.OpenMPThreadSubscription = true; 3912 } 3913 3914 // Get the OpenMP target triples if any. 3915 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3916 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3917 auto getArchPtrSize = [](const llvm::Triple &T) { 3918 if (T.isArch16Bit()) 3919 return Arch16Bit; 3920 if (T.isArch32Bit()) 3921 return Arch32Bit; 3922 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3923 return Arch64Bit; 3924 }; 3925 3926 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3927 llvm::Triple TT(A->getValue(i)); 3928 3929 if (TT.getArch() == llvm::Triple::UnknownArch || 3930 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3931 TT.getArch() == llvm::Triple::nvptx || 3932 TT.getArch() == llvm::Triple::nvptx64 || 3933 TT.getArch() == llvm::Triple::amdgcn || 3934 TT.getArch() == llvm::Triple::x86 || 3935 TT.getArch() == llvm::Triple::x86_64)) 3936 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3937 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3938 Diags.Report(diag::err_drv_incompatible_omp_arch) 3939 << A->getValue(i) << T.str(); 3940 else 3941 Opts.OMPTargetTriples.push_back(TT); 3942 } 3943 } 3944 3945 // Get OpenMP host file path if any and report if a non existent file is 3946 // found 3947 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3948 Opts.OMPHostIRFile = A->getValue(); 3949 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3950 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3951 << Opts.OMPHostIRFile; 3952 } 3953 3954 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3955 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3956 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3957 3958 // FIXME: Eliminate this dependency. 3959 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3960 OptSize = getOptimizationLevelSize(Args); 3961 Opts.Optimize = Opt != 0; 3962 Opts.OptimizeSize = OptSize != 0; 3963 3964 // This is the __NO_INLINE__ define, which just depends on things like the 3965 // optimization level and -fno-inline, not actually whether the backend has 3966 // inlining enabled. 3967 Opts.NoInlineDefine = !Opts.Optimize; 3968 if (Arg *InlineArg = Args.getLastArg( 3969 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3970 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3971 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3972 Opts.NoInlineDefine = true; 3973 3974 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3975 StringRef Val = A->getValue(); 3976 if (Val == "fast") 3977 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3978 else if (Val == "on") 3979 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3980 else if (Val == "off") 3981 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3982 else if (Val == "fast-honor-pragmas") 3983 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3984 else 3985 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3986 } 3987 3988 // Parse -fsanitize= arguments. 3989 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3990 Diags, Opts.Sanitize); 3991 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3992 std::vector<std::string> systemIgnorelists = 3993 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3994 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3995 systemIgnorelists.begin(), 3996 systemIgnorelists.end()); 3997 3998 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3999 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4000 4001 StringRef Ver = A->getValue(); 4002 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4003 unsigned Major, Minor = 0; 4004 4005 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4006 // y or y.0 (4 <= y <= current version). 4007 if (!VerParts.first.startswith("0") && 4008 !VerParts.first.getAsInteger(10, Major) && 4009 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4010 (Major == 3 ? VerParts.second.size() == 1 && 4011 !VerParts.second.getAsInteger(10, Minor) 4012 : VerParts.first.size() == Ver.size() || 4013 VerParts.second == "0")) { 4014 // Got a valid version number. 4015 if (Major == 3 && Minor <= 8) 4016 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4017 else if (Major <= 4) 4018 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4019 else if (Major <= 6) 4020 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4021 else if (Major <= 7) 4022 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4023 else if (Major <= 9) 4024 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4025 else if (Major <= 11) 4026 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4027 else if (Major <= 12) 4028 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4029 else if (Major <= 14) 4030 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4031 else if (Major <= 15) 4032 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4033 } else if (Ver != "latest") { 4034 Diags.Report(diag::err_drv_invalid_value) 4035 << A->getAsString(Args) << A->getValue(); 4036 } 4037 } 4038 4039 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4040 StringRef SignScope = A->getValue(); 4041 4042 if (SignScope.equals_insensitive("none")) 4043 Opts.setSignReturnAddressScope( 4044 LangOptions::SignReturnAddressScopeKind::None); 4045 else if (SignScope.equals_insensitive("all")) 4046 Opts.setSignReturnAddressScope( 4047 LangOptions::SignReturnAddressScopeKind::All); 4048 else if (SignScope.equals_insensitive("non-leaf")) 4049 Opts.setSignReturnAddressScope( 4050 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4051 else 4052 Diags.Report(diag::err_drv_invalid_value) 4053 << A->getAsString(Args) << SignScope; 4054 4055 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4056 StringRef SignKey = A->getValue(); 4057 if (!SignScope.empty() && !SignKey.empty()) { 4058 if (SignKey.equals_insensitive("a_key")) 4059 Opts.setSignReturnAddressKey( 4060 LangOptions::SignReturnAddressKeyKind::AKey); 4061 else if (SignKey.equals_insensitive("b_key")) 4062 Opts.setSignReturnAddressKey( 4063 LangOptions::SignReturnAddressKeyKind::BKey); 4064 else 4065 Diags.Report(diag::err_drv_invalid_value) 4066 << A->getAsString(Args) << SignKey; 4067 } 4068 } 4069 } 4070 4071 // The value can be empty, which indicates the system default should be used. 4072 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4073 if (!CXXABI.empty()) { 4074 if (!TargetCXXABI::isABI(CXXABI)) { 4075 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4076 } else { 4077 auto Kind = TargetCXXABI::getKind(CXXABI); 4078 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4079 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4080 else 4081 Opts.CXXABI = Kind; 4082 } 4083 } 4084 4085 Opts.RelativeCXXABIVTables = 4086 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4087 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4088 TargetCXXABI::usesRelativeVTables(T)); 4089 4090 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4091 auto Split = StringRef(A).split('='); 4092 Opts.MacroPrefixMap.insert( 4093 {std::string(Split.first), std::string(Split.second)}); 4094 } 4095 4096 Opts.UseTargetPathSeparator = 4097 !Args.getLastArg(OPT_fno_file_reproducible) && 4098 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4099 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4100 Args.getLastArg(OPT_ffile_reproducible)); 4101 4102 // Error if -mvscale-min is unbounded. 4103 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4104 unsigned VScaleMin; 4105 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4106 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4107 } 4108 4109 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4110 std::ifstream SeedFile(A->getValue(0)); 4111 4112 if (!SeedFile.is_open()) 4113 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4114 << A->getValue(0); 4115 4116 std::getline(SeedFile, Opts.RandstructSeed); 4117 } 4118 4119 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4120 Opts.RandstructSeed = A->getValue(0); 4121 4122 // Validate options for HLSL 4123 if (Opts.HLSL) { 4124 bool SupportedTarget = T.getArch() == llvm::Triple::dxil && 4125 T.getOS() == llvm::Triple::ShaderModel; 4126 if (!SupportedTarget) 4127 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4128 } 4129 4130 return Diags.getNumErrors() == NumErrorsBefore; 4131 } 4132 4133 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4134 switch (Action) { 4135 case frontend::ASTDeclList: 4136 case frontend::ASTDump: 4137 case frontend::ASTPrint: 4138 case frontend::ASTView: 4139 case frontend::EmitAssembly: 4140 case frontend::EmitBC: 4141 case frontend::EmitHTML: 4142 case frontend::EmitLLVM: 4143 case frontend::EmitLLVMOnly: 4144 case frontend::EmitCodeGenOnly: 4145 case frontend::EmitObj: 4146 case frontend::ExtractAPI: 4147 case frontend::FixIt: 4148 case frontend::GenerateModule: 4149 case frontend::GenerateModuleInterface: 4150 case frontend::GenerateHeaderUnit: 4151 case frontend::GeneratePCH: 4152 case frontend::GenerateInterfaceStubs: 4153 case frontend::ParseSyntaxOnly: 4154 case frontend::ModuleFileInfo: 4155 case frontend::VerifyPCH: 4156 case frontend::PluginAction: 4157 case frontend::RewriteObjC: 4158 case frontend::RewriteTest: 4159 case frontend::RunAnalysis: 4160 case frontend::TemplightDump: 4161 case frontend::MigrateSource: 4162 return false; 4163 4164 case frontend::DumpCompilerOptions: 4165 case frontend::DumpRawTokens: 4166 case frontend::DumpTokens: 4167 case frontend::InitOnly: 4168 case frontend::PrintPreamble: 4169 case frontend::PrintPreprocessedInput: 4170 case frontend::RewriteMacros: 4171 case frontend::RunPreprocessorOnly: 4172 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4173 return true; 4174 } 4175 llvm_unreachable("invalid frontend action"); 4176 } 4177 4178 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4179 SmallVectorImpl<const char *> &Args, 4180 CompilerInvocation::StringAllocator SA, 4181 const LangOptions &LangOpts, 4182 const FrontendOptions &FrontendOpts, 4183 const CodeGenOptions &CodeGenOpts) { 4184 PreprocessorOptions *PreprocessorOpts = &Opts; 4185 4186 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4187 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4188 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4189 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4190 MERGER, EXTRACTOR, TABLE_INDEX) \ 4191 GENERATE_OPTION_WITH_MARSHALLING( \ 4192 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4193 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4194 #include "clang/Driver/Options.inc" 4195 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4196 4197 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4198 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4199 4200 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4201 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4202 4203 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4204 GenerateArg(Args, OPT_preamble_bytes_EQ, 4205 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4206 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4207 SA); 4208 4209 for (const auto &M : Opts.Macros) { 4210 // Don't generate __CET__ macro definitions. They are implied by the 4211 // -fcf-protection option that is generated elsewhere. 4212 if (M.first == "__CET__=1" && !M.second && 4213 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4214 continue; 4215 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4216 !CodeGenOpts.CFProtectionBranch) 4217 continue; 4218 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4219 CodeGenOpts.CFProtectionBranch) 4220 continue; 4221 4222 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4223 } 4224 4225 for (const auto &I : Opts.Includes) { 4226 // Don't generate OpenCL includes. They are implied by other flags that are 4227 // generated elsewhere. 4228 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4229 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4230 I == "opencl-c.h")) 4231 continue; 4232 // Don't generate HLSL includes. They are implied by other flags that are 4233 // generated elsewhere. 4234 if (LangOpts.HLSL && I == "hlsl.h") 4235 continue; 4236 4237 GenerateArg(Args, OPT_include, I, SA); 4238 } 4239 4240 for (const auto &CI : Opts.ChainedIncludes) 4241 GenerateArg(Args, OPT_chain_include, CI, SA); 4242 4243 for (const auto &RF : Opts.RemappedFiles) 4244 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4245 4246 if (Opts.SourceDateEpoch) 4247 GenerateArg(Args, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch), SA); 4248 4249 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4250 // generated elsewhere. 4251 } 4252 4253 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4254 DiagnosticsEngine &Diags, 4255 frontend::ActionKind Action, 4256 const FrontendOptions &FrontendOpts) { 4257 unsigned NumErrorsBefore = Diags.getNumErrors(); 4258 4259 PreprocessorOptions *PreprocessorOpts = &Opts; 4260 4261 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4262 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4263 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4264 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4265 MERGER, EXTRACTOR, TABLE_INDEX) \ 4266 PARSE_OPTION_WITH_MARSHALLING( \ 4267 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4268 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4269 #include "clang/Driver/Options.inc" 4270 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4271 4272 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4273 Args.hasArg(OPT_pch_through_hdrstop_use); 4274 4275 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4276 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4277 4278 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4279 StringRef Value(A->getValue()); 4280 size_t Comma = Value.find(','); 4281 unsigned Bytes = 0; 4282 unsigned EndOfLine = 0; 4283 4284 if (Comma == StringRef::npos || 4285 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4286 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4287 Diags.Report(diag::err_drv_preamble_format); 4288 else { 4289 Opts.PrecompiledPreambleBytes.first = Bytes; 4290 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4291 } 4292 } 4293 4294 // Add the __CET__ macro if a CFProtection option is set. 4295 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4296 StringRef Name = A->getValue(); 4297 if (Name == "branch") 4298 Opts.addMacroDef("__CET__=1"); 4299 else if (Name == "return") 4300 Opts.addMacroDef("__CET__=2"); 4301 else if (Name == "full") 4302 Opts.addMacroDef("__CET__=3"); 4303 } 4304 4305 // Add macros from the command line. 4306 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4307 if (A->getOption().matches(OPT_D)) 4308 Opts.addMacroDef(A->getValue()); 4309 else 4310 Opts.addMacroUndef(A->getValue()); 4311 } 4312 4313 // Add the ordered list of -includes. 4314 for (const auto *A : Args.filtered(OPT_include)) 4315 Opts.Includes.emplace_back(A->getValue()); 4316 4317 for (const auto *A : Args.filtered(OPT_chain_include)) 4318 Opts.ChainedIncludes.emplace_back(A->getValue()); 4319 4320 for (const auto *A : Args.filtered(OPT_remap_file)) { 4321 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4322 4323 if (Split.second.empty()) { 4324 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4325 continue; 4326 } 4327 4328 Opts.addRemappedFile(Split.first, Split.second); 4329 } 4330 4331 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4332 StringRef Epoch = A->getValue(); 4333 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4334 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4335 // 9999-12-31T23:59:59Z) as the upper bound. 4336 const uint64_t MaxTimestamp = 4337 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4338 uint64_t V; 4339 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4340 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4341 << Epoch << MaxTimestamp; 4342 } else { 4343 Opts.SourceDateEpoch = V; 4344 } 4345 } 4346 4347 // Always avoid lexing editor placeholders when we're just running the 4348 // preprocessor as we never want to emit the 4349 // "editor placeholder in source file" error in PP only mode. 4350 if (isStrictlyPreprocessorAction(Action)) 4351 Opts.LexEditorPlaceholders = false; 4352 4353 return Diags.getNumErrors() == NumErrorsBefore; 4354 } 4355 4356 static void GeneratePreprocessorOutputArgs( 4357 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4358 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4359 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4360 4361 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4362 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4363 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4364 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4365 MERGER, EXTRACTOR, TABLE_INDEX) \ 4366 GENERATE_OPTION_WITH_MARSHALLING( \ 4367 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4368 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4369 #include "clang/Driver/Options.inc" 4370 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4371 4372 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4373 if (Generate_dM) 4374 GenerateArg(Args, OPT_dM, SA); 4375 if (!Generate_dM && Opts.ShowMacros) 4376 GenerateArg(Args, OPT_dD, SA); 4377 if (Opts.DirectivesOnly) 4378 GenerateArg(Args, OPT_fdirectives_only, SA); 4379 } 4380 4381 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4382 ArgList &Args, DiagnosticsEngine &Diags, 4383 frontend::ActionKind Action) { 4384 unsigned NumErrorsBefore = Diags.getNumErrors(); 4385 4386 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4387 4388 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4389 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4390 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4391 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4392 MERGER, EXTRACTOR, TABLE_INDEX) \ 4393 PARSE_OPTION_WITH_MARSHALLING( \ 4394 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4395 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4396 #include "clang/Driver/Options.inc" 4397 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4398 4399 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4400 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4401 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4402 4403 return Diags.getNumErrors() == NumErrorsBefore; 4404 } 4405 4406 static void GenerateTargetArgs(const TargetOptions &Opts, 4407 SmallVectorImpl<const char *> &Args, 4408 CompilerInvocation::StringAllocator SA) { 4409 const TargetOptions *TargetOpts = &Opts; 4410 #define TARGET_OPTION_WITH_MARSHALLING( \ 4411 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4412 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4413 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4414 MERGER, EXTRACTOR, TABLE_INDEX) \ 4415 GENERATE_OPTION_WITH_MARSHALLING( \ 4416 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4417 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4418 #include "clang/Driver/Options.inc" 4419 #undef TARGET_OPTION_WITH_MARSHALLING 4420 4421 if (!Opts.SDKVersion.empty()) 4422 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4423 SA); 4424 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4425 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4426 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4427 } 4428 4429 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4430 DiagnosticsEngine &Diags) { 4431 unsigned NumErrorsBefore = Diags.getNumErrors(); 4432 4433 TargetOptions *TargetOpts = &Opts; 4434 4435 #define TARGET_OPTION_WITH_MARSHALLING( \ 4436 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4437 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4438 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4439 MERGER, EXTRACTOR, TABLE_INDEX) \ 4440 PARSE_OPTION_WITH_MARSHALLING( \ 4441 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4442 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4443 #include "clang/Driver/Options.inc" 4444 #undef TARGET_OPTION_WITH_MARSHALLING 4445 4446 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4447 llvm::VersionTuple Version; 4448 if (Version.tryParse(A->getValue())) 4449 Diags.Report(diag::err_drv_invalid_value) 4450 << A->getAsString(Args) << A->getValue(); 4451 else 4452 Opts.SDKVersion = Version; 4453 } 4454 if (Arg *A = 4455 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4456 llvm::VersionTuple Version; 4457 if (Version.tryParse(A->getValue())) 4458 Diags.Report(diag::err_drv_invalid_value) 4459 << A->getAsString(Args) << A->getValue(); 4460 else 4461 Opts.DarwinTargetVariantSDKVersion = Version; 4462 } 4463 4464 return Diags.getNumErrors() == NumErrorsBefore; 4465 } 4466 4467 bool CompilerInvocation::CreateFromArgsImpl( 4468 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4469 DiagnosticsEngine &Diags, const char *Argv0) { 4470 unsigned NumErrorsBefore = Diags.getNumErrors(); 4471 4472 // Parse the arguments. 4473 const OptTable &Opts = getDriverOptTable(); 4474 const unsigned IncludedFlagsBitmask = options::CC1Option; 4475 unsigned MissingArgIndex, MissingArgCount; 4476 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4477 MissingArgCount, IncludedFlagsBitmask); 4478 LangOptions &LangOpts = *Res.getLangOpts(); 4479 4480 // Check for missing argument error. 4481 if (MissingArgCount) 4482 Diags.Report(diag::err_drv_missing_argument) 4483 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4484 4485 // Issue errors on unknown arguments. 4486 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4487 auto ArgString = A->getAsString(Args); 4488 std::string Nearest; 4489 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4490 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4491 else 4492 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4493 << ArgString << Nearest; 4494 } 4495 4496 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4497 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4498 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4499 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4500 /*DefaultDiagColor=*/false); 4501 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4502 // FIXME: We shouldn't have to pass the DashX option around here 4503 InputKind DashX = Res.getFrontendOpts().DashX; 4504 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4505 llvm::Triple T(Res.getTargetOpts().Triple); 4506 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4507 Res.getFileSystemOpts().WorkingDir); 4508 4509 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4510 Diags); 4511 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4512 LangOpts.ObjCExceptions = 1; 4513 4514 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4515 if (Warning == "misexpect" && 4516 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4517 Res.getCodeGenOpts().MisExpect = true; 4518 } 4519 } 4520 4521 if (LangOpts.CUDA) { 4522 // During CUDA device-side compilation, the aux triple is the 4523 // triple used for host compilation. 4524 if (LangOpts.CUDAIsDevice) 4525 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4526 } 4527 4528 // Set the triple of the host for OpenMP device compile. 4529 if (LangOpts.OpenMPIsDevice) 4530 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4531 4532 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4533 Res.getFrontendOpts().OutputFile, LangOpts); 4534 4535 // FIXME: Override value name discarding when asan or msan is used because the 4536 // backend passes depend on the name of the alloca in order to print out 4537 // names. 4538 Res.getCodeGenOpts().DiscardValueNames &= 4539 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4540 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4541 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4542 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4543 4544 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4545 Res.getFrontendOpts().ProgramAction, 4546 Res.getFrontendOpts()); 4547 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4548 Res.getFrontendOpts().ProgramAction); 4549 4550 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4551 Res.getFrontendOpts().ProgramAction, 4552 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4553 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4554 Res.getDependencyOutputOpts().Targets.empty()) 4555 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4556 4557 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4558 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4559 !Res.getLangOpts()->Sanitize.empty()) { 4560 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4561 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4562 } 4563 4564 // Store the command-line for using in the CodeView backend. 4565 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4566 Res.getCodeGenOpts().Argv0 = Argv0; 4567 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4568 } 4569 4570 // Set PGOOptions. Need to create a temporary VFS to read the profile 4571 // to determine the PGO type. 4572 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 4573 auto FS = 4574 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 4575 Diags, llvm::vfs::getRealFileSystem()); 4576 setPGOUseInstrumentor(Res.getCodeGenOpts(), 4577 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 4578 Diags); 4579 } 4580 4581 FixupInvocation(Res, Diags, Args, DashX); 4582 4583 return Diags.getNumErrors() == NumErrorsBefore; 4584 } 4585 4586 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4587 ArrayRef<const char *> CommandLineArgs, 4588 DiagnosticsEngine &Diags, 4589 const char *Argv0) { 4590 CompilerInvocation DummyInvocation; 4591 4592 return RoundTrip( 4593 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4594 DiagnosticsEngine &Diags, const char *Argv0) { 4595 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4596 }, 4597 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4598 StringAllocator SA) { 4599 Args.push_back("-cc1"); 4600 Invocation.generateCC1CommandLine(Args, SA); 4601 }, 4602 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4603 } 4604 4605 std::string CompilerInvocation::getModuleHash() const { 4606 // FIXME: Consider using SHA1 instead of MD5. 4607 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4608 4609 // Note: For QoI reasons, the things we use as a hash here should all be 4610 // dumped via the -module-info flag. 4611 4612 // Start the signature with the compiler version. 4613 HBuilder.add(getClangFullRepositoryVersion()); 4614 4615 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4616 // and getClangFullRepositoryVersion() doesn't include git revision. 4617 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4618 4619 // Extend the signature with the language options 4620 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4621 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4622 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4623 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4624 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4625 #include "clang/Basic/LangOptions.def" 4626 4627 HBuilder.addRange(LangOpts->ModuleFeatures); 4628 4629 HBuilder.add(LangOpts->ObjCRuntime); 4630 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4631 4632 // Extend the signature with the target options. 4633 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4634 TargetOpts->ABI); 4635 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4636 4637 // Extend the signature with preprocessor options. 4638 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4639 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4640 4641 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4642 for (const auto &Macro : getPreprocessorOpts().Macros) { 4643 // If we're supposed to ignore this macro for the purposes of modules, 4644 // don't put it into the hash. 4645 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4646 // Check whether we're ignoring this macro. 4647 StringRef MacroDef = Macro.first; 4648 if (hsOpts.ModulesIgnoreMacros.count( 4649 llvm::CachedHashString(MacroDef.split('=').first))) 4650 continue; 4651 } 4652 4653 HBuilder.add(Macro); 4654 } 4655 4656 // Extend the signature with the sysroot and other header search options. 4657 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4658 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4659 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4660 hsOpts.ModulesValidateDiagnosticOptions); 4661 HBuilder.add(hsOpts.ResourceDir); 4662 4663 if (hsOpts.ModulesStrictContextHash) { 4664 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4665 HBuilder.addRange(hsOpts.UserEntries); 4666 4667 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4668 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4669 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4670 HBuilder.add(diagOpts.get##Name()); 4671 #include "clang/Basic/DiagnosticOptions.def" 4672 #undef DIAGOPT 4673 #undef ENUM_DIAGOPT 4674 } 4675 4676 // Extend the signature with the user build path. 4677 HBuilder.add(hsOpts.ModuleUserBuildPath); 4678 4679 // Extend the signature with the module file extensions. 4680 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4681 ext->hashExtension(HBuilder); 4682 4683 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4684 // affects the debug info in the PCM. 4685 if (getCodeGenOpts().DebugTypeExtRefs) 4686 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4687 4688 // Extend the signature with the enabled sanitizers, if at least one is 4689 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4690 SanitizerSet SanHash = LangOpts->Sanitize; 4691 SanHash.clear(getPPTransparentSanitizers()); 4692 if (!SanHash.empty()) 4693 HBuilder.add(SanHash.Mask); 4694 4695 llvm::MD5::MD5Result Result; 4696 HBuilder.getHasher().final(Result); 4697 uint64_t Hash = Result.high() ^ Result.low(); 4698 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4699 } 4700 4701 void CompilerInvocation::generateCC1CommandLine( 4702 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4703 llvm::Triple T(TargetOpts->Triple); 4704 4705 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4706 GenerateMigratorArgs(MigratorOpts, Args, SA); 4707 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4708 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4709 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4710 GenerateTargetArgs(*TargetOpts, Args, SA); 4711 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4712 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4713 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4714 &*LangOpts); 4715 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4716 CodeGenOpts); 4717 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4718 FrontendOpts.ProgramAction); 4719 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4720 } 4721 4722 std::vector<std::string> CompilerInvocation::getCC1CommandLine() const { 4723 // Set up string allocator. 4724 llvm::BumpPtrAllocator Alloc; 4725 llvm::StringSaver Strings(Alloc); 4726 auto SA = [&Strings](const Twine &Arg) { return Strings.save(Arg).data(); }; 4727 4728 // Synthesize full command line from the CompilerInvocation, including "-cc1". 4729 SmallVector<const char *, 32> Args{"-cc1"}; 4730 generateCC1CommandLine(Args, SA); 4731 4732 // Convert arguments to the return type. 4733 return std::vector<std::string>{Args.begin(), Args.end()}; 4734 } 4735 4736 void CompilerInvocation::resetNonModularOptions() { 4737 getLangOpts()->resetNonModularOptions(); 4738 getPreprocessorOpts().resetNonModularOptions(); 4739 } 4740 4741 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4742 getLangOpts()->ImplicitModules = false; 4743 getHeaderSearchOpts().ImplicitModuleMaps = false; 4744 getHeaderSearchOpts().ModuleCachePath.clear(); 4745 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4746 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4747 // The specific values we canonicalize to for pruning don't affect behaviour, 4748 /// so use the default values so they may be dropped from the command-line. 4749 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4750 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 4751 } 4752 4753 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4754 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4755 DiagnosticsEngine &Diags) { 4756 return createVFSFromCompilerInvocation(CI, Diags, 4757 llvm::vfs::getRealFileSystem()); 4758 } 4759 4760 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4761 clang::createVFSFromCompilerInvocation( 4762 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4763 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4764 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 4765 Diags, std::move(BaseFS)); 4766 } 4767 4768 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 4769 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 4770 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4771 if (VFSOverlayFiles.empty()) 4772 return BaseFS; 4773 4774 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4775 // earlier vfs files are on the bottom 4776 for (const auto &File : VFSOverlayFiles) { 4777 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4778 Result->getBufferForFile(File); 4779 if (!Buffer) { 4780 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4781 continue; 4782 } 4783 4784 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4785 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4786 /*DiagContext*/ nullptr, Result); 4787 if (!FS) { 4788 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4789 continue; 4790 } 4791 4792 Result = FS; 4793 } 4794 return Result; 4795 } 4796