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/Utils.h" 42 #include "clang/Lex/HeaderSearchOptions.h" 43 #include "clang/Lex/PreprocessorOptions.h" 44 #include "clang/Sema/CodeCompleteOptions.h" 45 #include "clang/Serialization/ASTBitCodes.h" 46 #include "clang/Serialization/ModuleFileExtension.h" 47 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 48 #include "llvm/ADT/APInt.h" 49 #include "llvm/ADT/ArrayRef.h" 50 #include "llvm/ADT/CachedHashString.h" 51 #include "llvm/ADT/FloatingPointMode.h" 52 #include "llvm/ADT/Hashing.h" 53 #include "llvm/ADT/None.h" 54 #include "llvm/ADT/Optional.h" 55 #include "llvm/ADT/SmallString.h" 56 #include "llvm/ADT/SmallVector.h" 57 #include "llvm/ADT/StringRef.h" 58 #include "llvm/ADT/StringSwitch.h" 59 #include "llvm/ADT/Triple.h" 60 #include "llvm/ADT/Twine.h" 61 #include "llvm/Config/llvm-config.h" 62 #include "llvm/IR/DebugInfoMetadata.h" 63 #include "llvm/Linker/Linker.h" 64 #include "llvm/MC/MCTargetOptions.h" 65 #include "llvm/Option/Arg.h" 66 #include "llvm/Option/ArgList.h" 67 #include "llvm/Option/OptSpecifier.h" 68 #include "llvm/Option/OptTable.h" 69 #include "llvm/Option/Option.h" 70 #include "llvm/ProfileData/InstrProfReader.h" 71 #include "llvm/Remarks/HotnessThresholdParser.h" 72 #include "llvm/Support/CodeGen.h" 73 #include "llvm/Support/Compiler.h" 74 #include "llvm/Support/Error.h" 75 #include "llvm/Support/ErrorHandling.h" 76 #include "llvm/Support/ErrorOr.h" 77 #include "llvm/Support/FileSystem.h" 78 #include "llvm/Support/Host.h" 79 #include "llvm/Support/MathExtras.h" 80 #include "llvm/Support/MemoryBuffer.h" 81 #include "llvm/Support/Path.h" 82 #include "llvm/Support/Process.h" 83 #include "llvm/Support/Regex.h" 84 #include "llvm/Support/VersionTuple.h" 85 #include "llvm/Support/VirtualFileSystem.h" 86 #include "llvm/Support/raw_ostream.h" 87 #include "llvm/Target/TargetOptions.h" 88 #include <algorithm> 89 #include <atomic> 90 #include <cassert> 91 #include <cstddef> 92 #include <cstring> 93 #include <memory> 94 #include <string> 95 #include <tuple> 96 #include <type_traits> 97 #include <utility> 98 #include <vector> 99 100 using namespace clang; 101 using namespace driver; 102 using namespace options; 103 using namespace llvm::opt; 104 105 //===----------------------------------------------------------------------===// 106 // Initialization. 107 //===----------------------------------------------------------------------===// 108 109 CompilerInvocationBase::CompilerInvocationBase() 110 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 111 DiagnosticOpts(new DiagnosticOptions()), 112 HeaderSearchOpts(new HeaderSearchOptions()), 113 PreprocessorOpts(new PreprocessorOptions()) {} 114 115 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 116 : LangOpts(new LangOptions(*X.getLangOpts())), 117 TargetOpts(new TargetOptions(X.getTargetOpts())), 118 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 119 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 120 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 121 122 CompilerInvocationBase::~CompilerInvocationBase() = default; 123 124 //===----------------------------------------------------------------------===// 125 // Normalizers 126 //===----------------------------------------------------------------------===// 127 128 #define SIMPLE_ENUM_VALUE_TABLE 129 #include "clang/Driver/Options.inc" 130 #undef SIMPLE_ENUM_VALUE_TABLE 131 132 static llvm::Optional<bool> 133 normalizeSimpleFlag(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 134 DiagnosticsEngine &Diags, bool &Success) { 135 if (Args.hasArg(Opt)) 136 return true; 137 return None; 138 } 139 140 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 141 const ArgList &Args, 142 DiagnosticsEngine &, 143 bool &Success) { 144 if (Args.hasArg(Opt)) 145 return false; 146 return None; 147 } 148 149 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 150 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 151 /// unnecessary template instantiations and just ignore it with a variadic 152 /// argument. 153 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 154 const char *Spelling, 155 CompilerInvocation::StringAllocator, 156 Option::OptionClass, unsigned, /*T*/...) { 157 Args.push_back(Spelling); 158 } 159 160 template <typename T> static constexpr bool is_uint64_t_convertible() { 161 return !std::is_same<T, uint64_t>::value && 162 llvm::is_integral_or_enum<T>::value; 163 } 164 165 template <typename T, 166 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 167 static auto makeFlagToValueNormalizer(T Value) { 168 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 169 DiagnosticsEngine &, bool &Success) -> Optional<T> { 170 if (Args.hasArg(Opt)) 171 return Value; 172 return None; 173 }; 174 } 175 176 template <typename T, 177 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 178 static auto makeFlagToValueNormalizer(T Value) { 179 return makeFlagToValueNormalizer(uint64_t(Value)); 180 } 181 182 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 183 OptSpecifier OtherOpt) { 184 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 185 const ArgList &Args, DiagnosticsEngine &, 186 bool &Success) -> Optional<bool> { 187 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 188 return A->getOption().matches(Opt) ? Value : OtherValue; 189 } 190 return None; 191 }; 192 } 193 194 static auto makeBooleanOptionDenormalizer(bool Value) { 195 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 196 CompilerInvocation::StringAllocator, Option::OptionClass, 197 unsigned, bool KeyPath) { 198 if (KeyPath == Value) 199 Args.push_back(Spelling); 200 }; 201 } 202 203 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 204 const char *Spelling, 205 CompilerInvocation::StringAllocator SA, 206 Option::OptionClass OptClass, unsigned, 207 Twine Value) { 208 switch (OptClass) { 209 case Option::SeparateClass: 210 case Option::JoinedOrSeparateClass: 211 Args.push_back(Spelling); 212 Args.push_back(SA(Value)); 213 break; 214 case Option::JoinedClass: 215 Args.push_back(SA(Twine(Spelling) + Value)); 216 break; 217 default: 218 llvm_unreachable("Cannot denormalize an option with option class " 219 "incompatible with string denormalization."); 220 } 221 } 222 223 template <typename T> 224 static void 225 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 226 CompilerInvocation::StringAllocator SA, 227 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 228 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 229 } 230 231 static Optional<SimpleEnumValue> 232 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 233 for (int I = 0, E = Table.Size; I != E; ++I) 234 if (Name == Table.Table[I].Name) 235 return Table.Table[I]; 236 237 return None; 238 } 239 240 static Optional<SimpleEnumValue> 241 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 242 for (int I = 0, E = Table.Size; I != E; ++I) 243 if (Value == Table.Table[I].Value) 244 return Table.Table[I]; 245 246 return None; 247 } 248 249 static llvm::Optional<unsigned> 250 normalizeSimpleEnum(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 251 DiagnosticsEngine &Diags, bool &Success) { 252 assert(TableIndex < SimpleEnumValueTablesSize); 253 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 254 255 auto *Arg = Args.getLastArg(Opt); 256 if (!Arg) 257 return None; 258 259 StringRef ArgValue = Arg->getValue(); 260 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 261 return MaybeEnumVal->Value; 262 263 Success = false; 264 Diags.Report(diag::err_drv_invalid_value) 265 << Arg->getAsString(Args) << ArgValue; 266 return None; 267 } 268 269 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 270 const char *Spelling, 271 CompilerInvocation::StringAllocator SA, 272 Option::OptionClass OptClass, 273 unsigned TableIndex, unsigned Value) { 274 assert(TableIndex < SimpleEnumValueTablesSize); 275 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 276 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 277 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 278 MaybeEnumVal->Name); 279 } else { 280 llvm_unreachable("The simple enum value was not correctly defined in " 281 "the tablegen option description"); 282 } 283 } 284 285 template <typename T> 286 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 287 const char *Spelling, 288 CompilerInvocation::StringAllocator SA, 289 Option::OptionClass OptClass, 290 unsigned TableIndex, T Value) { 291 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 292 static_cast<unsigned>(Value)); 293 } 294 295 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 296 const ArgList &Args, 297 DiagnosticsEngine &Diags, 298 bool &Success) { 299 auto *Arg = Args.getLastArg(Opt); 300 if (!Arg) 301 return None; 302 return std::string(Arg->getValue()); 303 } 304 305 template <typename IntTy> 306 static Optional<IntTy> 307 normalizeStringIntegral(OptSpecifier Opt, int, const ArgList &Args, 308 DiagnosticsEngine &Diags, bool &Success) { 309 auto *Arg = Args.getLastArg(Opt); 310 if (!Arg) 311 return None; 312 IntTy Res; 313 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 314 Success = false; 315 Diags.Report(diag::err_drv_invalid_int_value) 316 << Arg->getAsString(Args) << Arg->getValue(); 317 return None; 318 } 319 return Res; 320 } 321 322 static Optional<std::vector<std::string>> 323 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 324 DiagnosticsEngine &, bool &Success) { 325 return Args.getAllArgValues(Opt); 326 } 327 328 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 329 const char *Spelling, 330 CompilerInvocation::StringAllocator SA, 331 Option::OptionClass OptClass, 332 unsigned TableIndex, 333 const std::vector<std::string> &Values) { 334 switch (OptClass) { 335 case Option::CommaJoinedClass: { 336 std::string CommaJoinedValue; 337 if (!Values.empty()) { 338 CommaJoinedValue.append(Values.front()); 339 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 340 CommaJoinedValue.append(","); 341 CommaJoinedValue.append(Value); 342 } 343 } 344 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 345 TableIndex, CommaJoinedValue); 346 break; 347 } 348 case Option::JoinedClass: 349 case Option::SeparateClass: 350 case Option::JoinedOrSeparateClass: 351 for (const std::string &Value : Values) 352 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 353 break; 354 default: 355 llvm_unreachable("Cannot denormalize an option with option class " 356 "incompatible with string vector denormalization."); 357 } 358 } 359 360 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 361 const ArgList &Args, 362 DiagnosticsEngine &Diags, 363 bool &Success) { 364 auto *Arg = Args.getLastArg(Opt); 365 if (!Arg) 366 return None; 367 return llvm::Triple::normalize(Arg->getValue()); 368 } 369 370 template <typename T, typename U> 371 static T mergeForwardValue(T KeyPath, U Value) { 372 return static_cast<T>(Value); 373 } 374 375 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 376 return KeyPath | Value; 377 } 378 379 template <typename T> static T extractForwardValue(T KeyPath) { 380 return KeyPath; 381 } 382 383 template <typename T, typename U, U Value> 384 static T extractMaskValue(T KeyPath) { 385 return KeyPath & Value; 386 } 387 388 #define PARSE_OPTION_WITH_MARSHALLING(ARGS, DIAGS, SUCCESS, ID, FLAGS, PARAM, \ 389 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 390 IMPLIED_CHECK, IMPLIED_VALUE, \ 391 NORMALIZER, MERGER, TABLE_INDEX) \ 392 if ((FLAGS)&options::CC1Option) { \ 393 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 394 if (IMPLIED_CHECK) \ 395 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 396 if (SHOULD_PARSE) \ 397 if (auto MaybeValue = \ 398 NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS, SUCCESS)) \ 399 KEYPATH = \ 400 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 401 } 402 403 static const StringRef GetInputKindName(InputKind IK); 404 405 static void FixupInvocation(CompilerInvocation &Invocation, 406 DiagnosticsEngine &Diags, const InputArgList &Args, 407 InputKind IK) { 408 LangOptions &LangOpts = *Invocation.getLangOpts(); 409 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 410 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 411 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 412 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 413 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 414 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 415 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 416 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 417 418 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 419 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 420 LangOpts.CurrentModule = LangOpts.ModuleName; 421 422 llvm::Triple T(TargetOpts.Triple); 423 llvm::Triple::ArchType Arch = T.getArch(); 424 425 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 426 427 if (LangOpts.getExceptionHandling() != llvm::ExceptionHandling::None && 428 T.isWindowsMSVCEnvironment()) 429 Diags.Report(diag::err_fe_invalid_exception_model) 430 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 431 432 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 433 Diags.Report(diag::warn_c_kext); 434 435 if (LangOpts.NewAlignOverride && 436 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 437 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 438 Diags.Report(diag::err_fe_invalid_alignment) 439 << A->getAsString(Args) << A->getValue(); 440 LangOpts.NewAlignOverride = 0; 441 } 442 443 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 444 Diags.Report(diag::err_drv_argument_not_allowed_with) 445 << "-fgnu89-inline" << GetInputKindName(IK); 446 447 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 448 auto DefaultCC = LangOpts.getDefaultCallingConv(); 449 450 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 451 DefaultCC == LangOptions::DCC_StdCall) && 452 Arch != llvm::Triple::x86; 453 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 454 DefaultCC == LangOptions::DCC_RegCall) && 455 !T.isX86(); 456 if (emitError) 457 Diags.Report(diag::err_drv_argument_not_allowed_with) 458 << A->getSpelling() << T.getTriple(); 459 } 460 461 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 462 Diags.Report(diag::err_drv_argument_only_allowed_with) 463 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 464 << "-fno-legacy-pass-manager"; 465 } 466 467 //===----------------------------------------------------------------------===// 468 // Deserialization (from args) 469 //===----------------------------------------------------------------------===// 470 471 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 472 DiagnosticsEngine &Diags) { 473 unsigned DefaultOpt = llvm::CodeGenOpt::None; 474 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 475 DefaultOpt = llvm::CodeGenOpt::Default; 476 477 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 478 if (A->getOption().matches(options::OPT_O0)) 479 return llvm::CodeGenOpt::None; 480 481 if (A->getOption().matches(options::OPT_Ofast)) 482 return llvm::CodeGenOpt::Aggressive; 483 484 assert(A->getOption().matches(options::OPT_O)); 485 486 StringRef S(A->getValue()); 487 if (S == "s" || S == "z") 488 return llvm::CodeGenOpt::Default; 489 490 if (S == "g") 491 return llvm::CodeGenOpt::Less; 492 493 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 494 } 495 496 return DefaultOpt; 497 } 498 499 static unsigned getOptimizationLevelSize(ArgList &Args) { 500 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 501 if (A->getOption().matches(options::OPT_O)) { 502 switch (A->getValue()[0]) { 503 default: 504 return 0; 505 case 's': 506 return 1; 507 case 'z': 508 return 2; 509 } 510 } 511 } 512 return 0; 513 } 514 515 static std::string GetOptName(llvm::opt::OptSpecifier OptSpecifier) { 516 static const OptTable &OptTable = getDriverOptTable(); 517 return OptTable.getOption(OptSpecifier).getPrefixedName(); 518 } 519 520 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 521 OptSpecifier GroupWithValue, 522 std::vector<std::string> &Diagnostics) { 523 for (auto *A : Args.filtered(Group)) { 524 if (A->getOption().getKind() == Option::FlagClass) { 525 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 526 // its name (minus the "W" or "R" at the beginning) to the warning list. 527 Diagnostics.push_back( 528 std::string(A->getOption().getName().drop_front(1))); 529 } else if (A->getOption().matches(GroupWithValue)) { 530 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 531 Diagnostics.push_back( 532 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 533 } else { 534 // Otherwise, add its value (for OPT_W_Joined and similar). 535 for (const auto *Arg : A->getValues()) 536 Diagnostics.emplace_back(Arg); 537 } 538 } 539 } 540 541 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 542 // it won't verify the input. 543 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 544 DiagnosticsEngine *Diags); 545 546 static void getAllNoBuiltinFuncValues(ArgList &Args, 547 std::vector<std::string> &Funcs) { 548 SmallVector<const char *, 8> Values; 549 for (const auto &Arg : Args) { 550 const Option &O = Arg->getOption(); 551 if (O.matches(options::OPT_fno_builtin_)) { 552 const char *FuncName = Arg->getValue(); 553 if (Builtin::Context::isBuiltinFunc(FuncName)) 554 Values.push_back(FuncName); 555 } 556 } 557 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 558 } 559 560 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 561 DiagnosticsEngine &Diags) { 562 bool Success = true; 563 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 564 StringRef Name = A->getValue(); 565 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 566 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 567 .Case(CMDFLAG, NAME##Model) 568 #include "clang/StaticAnalyzer/Core/Analyses.def" 569 .Default(NumStores); 570 if (Value == NumStores) { 571 Diags.Report(diag::err_drv_invalid_value) 572 << A->getAsString(Args) << Name; 573 Success = false; 574 } else { 575 Opts.AnalysisStoreOpt = Value; 576 } 577 } 578 579 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 580 StringRef Name = A->getValue(); 581 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 582 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 583 .Case(CMDFLAG, NAME##Model) 584 #include "clang/StaticAnalyzer/Core/Analyses.def" 585 .Default(NumConstraints); 586 if (Value == NumConstraints) { 587 Diags.Report(diag::err_drv_invalid_value) 588 << A->getAsString(Args) << Name; 589 Success = false; 590 } else { 591 Opts.AnalysisConstraintsOpt = Value; 592 } 593 } 594 595 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 596 StringRef Name = A->getValue(); 597 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 598 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 599 .Case(CMDFLAG, PD_##NAME) 600 #include "clang/StaticAnalyzer/Core/Analyses.def" 601 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 602 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 603 Diags.Report(diag::err_drv_invalid_value) 604 << A->getAsString(Args) << Name; 605 Success = false; 606 } else { 607 Opts.AnalysisDiagOpt = Value; 608 } 609 } 610 611 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 612 StringRef Name = A->getValue(); 613 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 614 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 615 .Case(CMDFLAG, NAME) 616 #include "clang/StaticAnalyzer/Core/Analyses.def" 617 .Default(NumPurgeModes); 618 if (Value == NumPurgeModes) { 619 Diags.Report(diag::err_drv_invalid_value) 620 << A->getAsString(Args) << Name; 621 Success = false; 622 } else { 623 Opts.AnalysisPurgeOpt = Value; 624 } 625 } 626 627 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 628 StringRef Name = A->getValue(); 629 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 630 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 631 .Case(CMDFLAG, NAME) 632 #include "clang/StaticAnalyzer/Core/Analyses.def" 633 .Default(NumInliningModes); 634 if (Value == NumInliningModes) { 635 Diags.Report(diag::err_drv_invalid_value) 636 << A->getAsString(Args) << Name; 637 Success = false; 638 } else { 639 Opts.InliningMode = Value; 640 } 641 } 642 643 Opts.CheckersAndPackages.clear(); 644 for (const Arg *A : 645 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 646 A->claim(); 647 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 648 // We can have a list of comma separated checker names, e.g: 649 // '-analyzer-checker=cocoa,unix' 650 StringRef CheckerAndPackageList = A->getValue(); 651 SmallVector<StringRef, 16> CheckersAndPackages; 652 CheckerAndPackageList.split(CheckersAndPackages, ","); 653 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 654 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 655 IsEnabled); 656 } 657 658 // Go through the analyzer configuration options. 659 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 660 661 // We can have a list of comma separated config names, e.g: 662 // '-analyzer-config key1=val1,key2=val2' 663 StringRef configList = A->getValue(); 664 SmallVector<StringRef, 4> configVals; 665 configList.split(configVals, ","); 666 for (const auto &configVal : configVals) { 667 StringRef key, val; 668 std::tie(key, val) = configVal.split("="); 669 if (val.empty()) { 670 Diags.Report(SourceLocation(), 671 diag::err_analyzer_config_no_value) << configVal; 672 Success = false; 673 break; 674 } 675 if (val.find('=') != StringRef::npos) { 676 Diags.Report(SourceLocation(), 677 diag::err_analyzer_config_multiple_values) 678 << configVal; 679 Success = false; 680 break; 681 } 682 683 // TODO: Check checker options too, possibly in CheckerRegistry. 684 // Leave unknown non-checker configs unclaimed. 685 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 686 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 687 Diags.Report(diag::err_analyzer_config_unknown) << key; 688 continue; 689 } 690 691 A->claim(); 692 Opts.Config[key] = std::string(val); 693 } 694 } 695 696 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 697 parseAnalyzerConfigs(Opts, &Diags); 698 else 699 parseAnalyzerConfigs(Opts, nullptr); 700 701 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 702 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 703 if (i != 0) 704 os << " "; 705 os << Args.getArgString(i); 706 } 707 os.flush(); 708 709 return Success; 710 } 711 712 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 713 StringRef OptionName, StringRef DefaultVal) { 714 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 715 } 716 717 static void initOption(AnalyzerOptions::ConfigTable &Config, 718 DiagnosticsEngine *Diags, 719 StringRef &OptionField, StringRef Name, 720 StringRef DefaultVal) { 721 // String options may be known to invalid (e.g. if the expected string is a 722 // file name, but the file does not exist), those will have to be checked in 723 // parseConfigs. 724 OptionField = getStringOption(Config, Name, DefaultVal); 725 } 726 727 static void initOption(AnalyzerOptions::ConfigTable &Config, 728 DiagnosticsEngine *Diags, 729 bool &OptionField, StringRef Name, bool DefaultVal) { 730 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 731 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 732 .Case("true", true) 733 .Case("false", false) 734 .Default(None); 735 736 if (!PossiblyInvalidVal) { 737 if (Diags) 738 Diags->Report(diag::err_analyzer_config_invalid_input) 739 << Name << "a boolean"; 740 else 741 OptionField = DefaultVal; 742 } else 743 OptionField = PossiblyInvalidVal.getValue(); 744 } 745 746 static void initOption(AnalyzerOptions::ConfigTable &Config, 747 DiagnosticsEngine *Diags, 748 unsigned &OptionField, StringRef Name, 749 unsigned DefaultVal) { 750 751 OptionField = DefaultVal; 752 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 753 .getAsInteger(0, OptionField); 754 if (Diags && HasFailed) 755 Diags->Report(diag::err_analyzer_config_invalid_input) 756 << Name << "an unsigned"; 757 } 758 759 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 760 DiagnosticsEngine *Diags) { 761 // TODO: There's no need to store the entire configtable, it'd be plenty 762 // enough tostore checker options. 763 764 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 765 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 766 767 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 768 SHALLOW_VAL, DEEP_VAL) \ 769 switch (AnOpts.getUserMode()) { \ 770 case UMK_Shallow: \ 771 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 772 break; \ 773 case UMK_Deep: \ 774 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 775 break; \ 776 } \ 777 778 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 779 #undef ANALYZER_OPTION 780 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 781 782 // At this point, AnalyzerOptions is configured. Let's validate some options. 783 784 // FIXME: Here we try to validate the silenced checkers or packages are valid. 785 // The current approach only validates the registered checkers which does not 786 // contain the runtime enabled checkers and optimally we would validate both. 787 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 788 std::vector<StringRef> Checkers = 789 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 790 std::vector<StringRef> Packages = 791 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 792 793 SmallVector<StringRef, 16> CheckersAndPackages; 794 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 795 796 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 797 if (Diags) { 798 bool IsChecker = CheckerOrPackage.contains('.'); 799 bool IsValidName = 800 IsChecker 801 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 802 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 803 804 if (!IsValidName) 805 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 806 << CheckerOrPackage; 807 } 808 809 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 810 } 811 } 812 813 if (!Diags) 814 return; 815 816 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 817 Diags->Report(diag::err_analyzer_config_invalid_input) 818 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 819 820 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 821 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 822 << "a filename"; 823 824 if (!AnOpts.ModelPath.empty() && 825 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 826 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 827 << "a filename"; 828 } 829 830 /// Create a new Regex instance out of the string value in \p RpassArg. 831 /// It returns a pointer to the newly generated Regex instance. 832 static std::shared_ptr<llvm::Regex> 833 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 834 Arg *RpassArg) { 835 StringRef Val = RpassArg->getValue(); 836 std::string RegexError; 837 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 838 if (!Pattern->isValid(RegexError)) { 839 Diags.Report(diag::err_drv_optimization_remark_pattern) 840 << RegexError << RpassArg->getAsString(Args); 841 Pattern.reset(); 842 } 843 return Pattern; 844 } 845 846 static bool parseDiagnosticLevelMask(StringRef FlagName, 847 const std::vector<std::string> &Levels, 848 DiagnosticsEngine &Diags, 849 DiagnosticLevelMask &M) { 850 bool Success = true; 851 for (const auto &Level : Levels) { 852 DiagnosticLevelMask const PM = 853 llvm::StringSwitch<DiagnosticLevelMask>(Level) 854 .Case("note", DiagnosticLevelMask::Note) 855 .Case("remark", DiagnosticLevelMask::Remark) 856 .Case("warning", DiagnosticLevelMask::Warning) 857 .Case("error", DiagnosticLevelMask::Error) 858 .Default(DiagnosticLevelMask::None); 859 if (PM == DiagnosticLevelMask::None) { 860 Success = false; 861 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 862 } 863 M = M | PM; 864 } 865 return Success; 866 } 867 868 static void parseSanitizerKinds(StringRef FlagName, 869 const std::vector<std::string> &Sanitizers, 870 DiagnosticsEngine &Diags, SanitizerSet &S) { 871 for (const auto &Sanitizer : Sanitizers) { 872 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 873 if (K == SanitizerMask()) 874 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 875 else 876 S.set(K, true); 877 } 878 } 879 880 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 881 ArgList &Args, DiagnosticsEngine &D, 882 XRayInstrSet &S) { 883 llvm::SmallVector<StringRef, 2> BundleParts; 884 llvm::SplitString(Bundle, BundleParts, ","); 885 for (const auto &B : BundleParts) { 886 auto Mask = parseXRayInstrValue(B); 887 if (Mask == XRayInstrKind::None) 888 if (B != "none") 889 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 890 else 891 S.Mask = Mask; 892 else if (Mask == XRayInstrKind::All) 893 S.Mask = Mask; 894 else 895 S.set(Mask, true); 896 } 897 } 898 899 // Set the profile kind using fprofile-instrument-use-path. 900 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 901 const Twine &ProfileName) { 902 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 903 // In error, return silently and let Clang PGOUse report the error message. 904 if (auto E = ReaderOrErr.takeError()) { 905 llvm::consumeError(std::move(E)); 906 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 907 return; 908 } 909 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 910 std::move(ReaderOrErr.get()); 911 if (PGOReader->isIRLevelProfile()) { 912 if (PGOReader->hasCSIRLevelProfile()) 913 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 914 else 915 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 916 } else 917 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 918 } 919 920 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 921 InputKind IK, 922 DiagnosticsEngine &Diags, 923 const llvm::Triple &T, 924 const std::string &OutputFile, 925 const LangOptions &LangOptsRef) { 926 bool Success = true; 927 928 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 929 // TODO: This could be done in Driver 930 unsigned MaxOptLevel = 3; 931 if (OptimizationLevel > MaxOptLevel) { 932 // If the optimization level is not supported, fall back on the default 933 // optimization 934 Diags.Report(diag::warn_drv_optimization_value) 935 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 936 OptimizationLevel = MaxOptLevel; 937 } 938 Opts.OptimizationLevel = OptimizationLevel; 939 940 // The key paths of codegen options defined in Options.td start with 941 // "CodeGenOpts.". Let's provide the expected variable name and type. 942 CodeGenOptions &CodeGenOpts = Opts; 943 // Some codegen options depend on language options. Let's provide the expected 944 // variable name and type. 945 const LangOptions *LangOpts = &LangOptsRef; 946 947 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 948 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 949 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 950 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 951 MERGER, EXTRACTOR, TABLE_INDEX) \ 952 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 953 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 954 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 955 MERGER, TABLE_INDEX) 956 #include "clang/Driver/Options.inc" 957 #undef CODEGEN_OPTION_WITH_MARSHALLING 958 959 // At O0 we want to fully disable inlining outside of cases marked with 960 // 'alwaysinline' that are required for correctness. 961 Opts.setInlining((Opts.OptimizationLevel == 0) 962 ? CodeGenOptions::OnlyAlwaysInlining 963 : CodeGenOptions::NormalInlining); 964 // Explicit inlining flags can disable some or all inlining even at 965 // optimization levels above zero. 966 if (Arg *InlineArg = Args.getLastArg( 967 options::OPT_finline_functions, options::OPT_finline_hint_functions, 968 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 969 if (Opts.OptimizationLevel > 0) { 970 const Option &InlineOpt = InlineArg->getOption(); 971 if (InlineOpt.matches(options::OPT_finline_functions)) 972 Opts.setInlining(CodeGenOptions::NormalInlining); 973 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 974 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 975 else 976 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 977 } 978 } 979 980 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 981 // -fdirect-access-external-data. 982 Opts.DirectAccessExternalData = 983 Args.hasArg(OPT_fdirect_access_external_data) || 984 (!Args.hasArg(OPT_fno_direct_access_external_data) && 985 getLastArgIntValue(Args, OPT_pic_level, 0, Diags) == 0); 986 987 // If -fuse-ctor-homing is set and limited debug info is already on, then use 988 // constructor homing. 989 if (Args.getLastArg(OPT_fuse_ctor_homing)) 990 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 991 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 992 993 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 994 auto Split = StringRef(Arg).split('='); 995 Opts.DebugPrefixMap.insert( 996 {std::string(Split.first), std::string(Split.second)}); 997 } 998 999 for (const auto &Arg : Args.getAllArgValues(OPT_fprofile_prefix_map_EQ)) { 1000 auto Split = StringRef(Arg).split('='); 1001 Opts.ProfilePrefixMap.insert( 1002 {std::string(Split.first), std::string(Split.second)}); 1003 } 1004 1005 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1006 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1007 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1008 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1009 1010 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1011 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1012 Opts.EmitCallSiteInfo = true; 1013 1014 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1015 Args.hasArg(OPT_new_struct_path_tbaa); 1016 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1017 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 1018 Args.hasArg(OPT_ffreestanding)); 1019 if (Opts.SimplifyLibCalls) 1020 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 1021 Opts.UnrollLoops = 1022 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1023 (Opts.OptimizationLevel > 1)); 1024 1025 Opts.DebugNameTable = static_cast<unsigned>( 1026 Args.hasArg(OPT_ggnu_pubnames) 1027 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1028 : Args.hasArg(OPT_gpubnames) 1029 ? llvm::DICompileUnit::DebugNameTableKind::Default 1030 : llvm::DICompileUnit::DebugNameTableKind::None); 1031 1032 if (!Opts.ProfileInstrumentUsePath.empty()) 1033 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1034 1035 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1036 Opts.TimePasses = true; 1037 1038 // -ftime-report= is only for new pass manager. 1039 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1040 if (Opts.LegacyPassManager) 1041 Diags.Report(diag::err_drv_argument_only_allowed_with) 1042 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1043 1044 StringRef Val = A->getValue(); 1045 if (Val == "per-pass") 1046 Opts.TimePassesPerRun = false; 1047 else if (Val == "per-pass-run") 1048 Opts.TimePassesPerRun = true; 1049 else 1050 Diags.Report(diag::err_drv_invalid_value) 1051 << A->getAsString(Args) << A->getValue(); 1052 } 1053 } 1054 1055 // Basic Block Sections implies Function Sections. 1056 Opts.FunctionSections = 1057 Args.hasArg(OPT_ffunction_sections) || 1058 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 1059 1060 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1061 Opts.PrepareForThinLTO = false; 1062 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1063 StringRef S = A->getValue(); 1064 if (S == "thin") 1065 Opts.PrepareForThinLTO = true; 1066 else if (S != "full") 1067 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1068 } 1069 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1070 if (IK.getLanguage() != Language::LLVM_IR) 1071 Diags.Report(diag::err_drv_argument_only_allowed_with) 1072 << A->getAsString(Args) << "-x ir"; 1073 Opts.ThinLTOIndexFile = 1074 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1075 } 1076 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1077 Opts.SaveTempsFilePrefix = 1078 llvm::StringSwitch<std::string>(A->getValue()) 1079 .Case("obj", OutputFile) 1080 .Default(llvm::sys::path::filename(OutputFile).str()); 1081 1082 // The memory profile runtime appends the pid to make this name more unique. 1083 const char *MemProfileBasename = "memprof.profraw"; 1084 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1085 SmallString<128> Path( 1086 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1087 llvm::sys::path::append(Path, MemProfileBasename); 1088 Opts.MemoryProfileOutput = std::string(Path); 1089 } else if (Args.hasArg(OPT_fmemory_profile)) 1090 Opts.MemoryProfileOutput = MemProfileBasename; 1091 1092 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1093 if (Args.hasArg(OPT_coverage_version_EQ)) { 1094 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1095 if (CoverageVersion.size() != 4) { 1096 Diags.Report(diag::err_drv_invalid_value) 1097 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1098 << CoverageVersion; 1099 } else { 1100 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1101 } 1102 } 1103 } 1104 // FIXME: For backend options that are not yet recorded as function 1105 // attributes in the IR, keep track of them so we can embed them in a 1106 // separate data section and use them when building the bitcode. 1107 for (const auto &A : Args) { 1108 // Do not encode output and input. 1109 if (A->getOption().getID() == options::OPT_o || 1110 A->getOption().getID() == options::OPT_INPUT || 1111 A->getOption().getID() == options::OPT_x || 1112 A->getOption().getID() == options::OPT_fembed_bitcode || 1113 A->getOption().matches(options::OPT_W_Group)) 1114 continue; 1115 ArgStringList ASL; 1116 A->render(Args, ASL); 1117 for (const auto &arg : ASL) { 1118 StringRef ArgStr(arg); 1119 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1120 // using \00 to separate each commandline options. 1121 Opts.CmdArgs.push_back('\0'); 1122 } 1123 } 1124 1125 auto XRayInstrBundles = 1126 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1127 if (XRayInstrBundles.empty()) 1128 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1129 else 1130 for (const auto &A : XRayInstrBundles) 1131 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1132 Diags, Opts.XRayInstrumentationBundle); 1133 1134 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1135 StringRef Name = A->getValue(); 1136 if (Name == "full") { 1137 Opts.CFProtectionReturn = 1; 1138 Opts.CFProtectionBranch = 1; 1139 } else if (Name == "return") 1140 Opts.CFProtectionReturn = 1; 1141 else if (Name == "branch") 1142 Opts.CFProtectionBranch = 1; 1143 else if (Name != "none") { 1144 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1145 Success = false; 1146 } 1147 } 1148 1149 for (auto *A : 1150 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1151 CodeGenOptions::BitcodeFileToLink F; 1152 F.Filename = A->getValue(); 1153 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1154 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1155 // When linking CUDA bitcode, propagate function attributes so that 1156 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1157 F.PropagateAttrs = true; 1158 F.Internalize = true; 1159 } 1160 Opts.LinkBitcodeFiles.push_back(F); 1161 } 1162 1163 if (Args.getLastArg(OPT_femulated_tls) || 1164 Args.getLastArg(OPT_fno_emulated_tls)) { 1165 Opts.ExplicitEmulatedTLS = true; 1166 } 1167 1168 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1169 StringRef Val = A->getValue(); 1170 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1171 if (!Opts.FPDenormalMode.isValid()) 1172 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1173 } 1174 1175 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1176 StringRef Val = A->getValue(); 1177 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1178 if (!Opts.FP32DenormalMode.isValid()) 1179 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1180 } 1181 1182 // X86_32 has -fppc-struct-return and -freg-struct-return. 1183 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1184 if (Arg *A = 1185 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1186 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1187 // TODO: We might want to consider enabling these options on AIX in the 1188 // future. 1189 if (T.isOSAIX()) 1190 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1191 << A->getSpelling() << T.str(); 1192 1193 const Option &O = A->getOption(); 1194 if (O.matches(OPT_fpcc_struct_return) || 1195 O.matches(OPT_maix_struct_return)) { 1196 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1197 } else { 1198 assert(O.matches(OPT_freg_struct_return) || 1199 O.matches(OPT_msvr4_struct_return)); 1200 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1201 } 1202 } 1203 1204 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1205 !Args.hasArg(OPT_fvisibility))) 1206 Opts.IgnoreXCOFFVisibility = 1; 1207 1208 if (Arg *A = 1209 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1210 if (!T.isOSAIX()) 1211 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1212 << A->getSpelling() << T.str(); 1213 1214 const Option &O = A->getOption(); 1215 if (O.matches(OPT_mabi_EQ_vec_default)) 1216 Diags.Report(diag::err_aix_default_altivec_abi) 1217 << A->getSpelling() << T.str(); 1218 else { 1219 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1220 Opts.EnableAIXExtendedAltivecABI = 1; 1221 } 1222 } 1223 1224 bool NeedLocTracking = false; 1225 1226 if (!Opts.OptRecordFile.empty()) 1227 NeedLocTracking = true; 1228 1229 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1230 Opts.OptRecordPasses = A->getValue(); 1231 NeedLocTracking = true; 1232 } 1233 1234 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1235 Opts.OptRecordFormat = A->getValue(); 1236 NeedLocTracking = true; 1237 } 1238 1239 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1240 Opts.OptimizationRemarkPattern = 1241 GenerateOptimizationRemarkRegex(Diags, Args, A); 1242 NeedLocTracking = true; 1243 } 1244 1245 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1246 Opts.OptimizationRemarkMissedPattern = 1247 GenerateOptimizationRemarkRegex(Diags, Args, A); 1248 NeedLocTracking = true; 1249 } 1250 1251 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1252 Opts.OptimizationRemarkAnalysisPattern = 1253 GenerateOptimizationRemarkRegex(Diags, Args, A); 1254 NeedLocTracking = true; 1255 } 1256 1257 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1258 bool UsingProfile = UsingSampleProfile || 1259 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1260 1261 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1262 // An IR file will contain PGO as metadata 1263 IK.getLanguage() != Language::LLVM_IR) 1264 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1265 << "-fdiagnostics-show-hotness"; 1266 1267 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1268 if (auto *arg = 1269 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1270 auto ResultOrErr = 1271 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1272 1273 if (!ResultOrErr) { 1274 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1275 << "-fdiagnostics-hotness-threshold="; 1276 } else { 1277 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1278 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1279 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1280 !UsingProfile) 1281 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1282 << "-fdiagnostics-hotness-threshold="; 1283 } 1284 } 1285 1286 // If the user requested to use a sample profile for PGO, then the 1287 // backend will need to track source location information so the profile 1288 // can be incorporated into the IR. 1289 if (UsingSampleProfile) 1290 NeedLocTracking = true; 1291 1292 // If the user requested a flag that requires source locations available in 1293 // the backend, make sure that the backend tracks source location information. 1294 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1295 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1296 1297 // Parse -fsanitize-recover= arguments. 1298 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1299 parseSanitizerKinds("-fsanitize-recover=", 1300 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1301 Opts.SanitizeRecover); 1302 parseSanitizerKinds("-fsanitize-trap=", 1303 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1304 Opts.SanitizeTrap); 1305 1306 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1307 1308 return Success; 1309 } 1310 1311 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1312 ArgList &Args) { 1313 if (Args.hasArg(OPT_show_includes)) { 1314 // Writing both /showIncludes and preprocessor output to stdout 1315 // would produce interleaved output, so use stderr for /showIncludes. 1316 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1317 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1318 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1319 else 1320 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1321 } else { 1322 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1323 } 1324 // Add sanitizer blacklists as extra dependencies. 1325 // They won't be discovered by the regular preprocessor, so 1326 // we let make / ninja to know about this implicit dependency. 1327 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1328 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1329 StringRef Val = A->getValue(); 1330 if (Val.find('=') == StringRef::npos) 1331 Opts.ExtraDeps.push_back(std::string(Val)); 1332 } 1333 if (Opts.IncludeSystemHeaders) { 1334 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1335 StringRef Val = A->getValue(); 1336 if (Val.find('=') == StringRef::npos) 1337 Opts.ExtraDeps.push_back(std::string(Val)); 1338 } 1339 } 1340 } 1341 1342 // Propagate the extra dependencies. 1343 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1344 Opts.ExtraDeps.push_back(A->getValue()); 1345 } 1346 1347 // Only the -fmodule-file=<file> form. 1348 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1349 StringRef Val = A->getValue(); 1350 if (Val.find('=') == StringRef::npos) 1351 Opts.ExtraDeps.push_back(std::string(Val)); 1352 } 1353 } 1354 1355 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1356 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1357 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1358 // Support both clang's -f[no-]color-diagnostics and gcc's 1359 // -f[no-]diagnostics-colors[=never|always|auto]. 1360 enum { 1361 Colors_On, 1362 Colors_Off, 1363 Colors_Auto 1364 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1365 for (auto *A : Args) { 1366 const Option &O = A->getOption(); 1367 if (O.matches(options::OPT_fcolor_diagnostics) || 1368 O.matches(options::OPT_fdiagnostics_color)) { 1369 ShowColors = Colors_On; 1370 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1371 O.matches(options::OPT_fno_diagnostics_color)) { 1372 ShowColors = Colors_Off; 1373 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1374 StringRef Value(A->getValue()); 1375 if (Value == "always") 1376 ShowColors = Colors_On; 1377 else if (Value == "never") 1378 ShowColors = Colors_Off; 1379 else if (Value == "auto") 1380 ShowColors = Colors_Auto; 1381 } 1382 } 1383 return ShowColors == Colors_On || 1384 (ShowColors == Colors_Auto && 1385 llvm::sys::Process::StandardErrHasColors()); 1386 } 1387 1388 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1389 DiagnosticsEngine &Diags) { 1390 bool Success = true; 1391 for (const auto &Prefix : VerifyPrefixes) { 1392 // Every prefix must start with a letter and contain only alphanumeric 1393 // characters, hyphens, and underscores. 1394 auto BadChar = llvm::find_if(Prefix, [](char C) { 1395 return !isAlphanumeric(C) && C != '-' && C != '_'; 1396 }); 1397 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1398 Success = false; 1399 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1400 Diags.Report(diag::note_drv_verify_prefix_spelling); 1401 } 1402 } 1403 return Success; 1404 } 1405 1406 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 1407 DiagnosticsEngine &Diags) { 1408 bool Success = true; 1409 1410 #define OPTION_WITH_MARSHALLING( \ 1411 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1412 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1413 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1414 MERGER, EXTRACTOR, TABLE_INDEX) \ 1415 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 1416 SHOULD_PARSE, this->KEYPATH, DEFAULT_VALUE, \ 1417 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1418 MERGER, TABLE_INDEX) 1419 #include "clang/Driver/Options.inc" 1420 #undef OPTION_WITH_MARSHALLING 1421 1422 return Success; 1423 } 1424 1425 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1426 DiagnosticsEngine *Diags, 1427 bool DefaultDiagColor) { 1428 Optional<DiagnosticsEngine> IgnoringDiags; 1429 if (!Diags) { 1430 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 1431 new IgnoringDiagConsumer()); 1432 Diags = &*IgnoringDiags; 1433 } 1434 1435 // The key paths of diagnostic options defined in Options.td start with 1436 // "DiagnosticOpts->". Let's provide the expected variable name and type. 1437 DiagnosticOptions *DiagnosticOpts = &Opts; 1438 bool Success = true; 1439 1440 #define DIAG_OPTION_WITH_MARSHALLING( \ 1441 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1442 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1443 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1444 MERGER, EXTRACTOR, TABLE_INDEX) \ 1445 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \ 1446 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1447 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1448 MERGER, TABLE_INDEX) 1449 #include "clang/Driver/Options.inc" 1450 #undef DIAG_OPTION_WITH_MARSHALLING 1451 1452 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 1453 1454 if (Arg *A = 1455 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1456 Opts.DiagnosticSerializationFile = A->getValue(); 1457 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1458 1459 if (Args.getLastArgValue(OPT_fdiagnostics_format) == "msvc-fallback") 1460 Opts.CLFallbackMode = true; 1461 1462 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1463 if (Args.hasArg(OPT_verify)) 1464 Opts.VerifyPrefixes.push_back("expected"); 1465 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1466 // then sort it to prepare for fast lookup using std::binary_search. 1467 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) { 1468 Opts.VerifyDiagnostics = false; 1469 Success = false; 1470 } 1471 else 1472 llvm::sort(Opts.VerifyPrefixes); 1473 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1474 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1475 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1476 *Diags, DiagMask); 1477 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1478 DiagMask = DiagnosticLevelMask::All; 1479 Opts.setVerifyIgnoreUnexpected(DiagMask); 1480 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1481 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1482 Diags->Report(diag::warn_ignoring_ftabstop_value) 1483 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1484 } 1485 1486 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1487 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1488 1489 return Success; 1490 } 1491 1492 /// Parse the argument to the -ftest-module-file-extension 1493 /// command-line argument. 1494 /// 1495 /// \returns true on error, false on success. 1496 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1497 std::string &BlockName, 1498 unsigned &MajorVersion, 1499 unsigned &MinorVersion, 1500 bool &Hashed, 1501 std::string &UserInfo) { 1502 SmallVector<StringRef, 5> Args; 1503 Arg.split(Args, ':', 5); 1504 if (Args.size() < 5) 1505 return true; 1506 1507 BlockName = std::string(Args[0]); 1508 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1509 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1510 if (Args[3].getAsInteger(2, Hashed)) return true; 1511 if (Args.size() > 4) 1512 UserInfo = std::string(Args[4]); 1513 return false; 1514 } 1515 1516 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1517 DiagnosticsEngine &Diags, 1518 bool &IsHeaderFile) { 1519 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1520 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1521 switch (A->getOption().getID()) { 1522 default: 1523 llvm_unreachable("Invalid option in group!"); 1524 case OPT_ast_list: 1525 Opts.ProgramAction = frontend::ASTDeclList; break; 1526 case OPT_ast_dump_all_EQ: 1527 case OPT_ast_dump_EQ: { 1528 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1529 .CaseLower("default", ADOF_Default) 1530 .CaseLower("json", ADOF_JSON) 1531 .Default(std::numeric_limits<unsigned>::max()); 1532 1533 if (Val != std::numeric_limits<unsigned>::max()) 1534 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1535 else { 1536 Diags.Report(diag::err_drv_invalid_value) 1537 << A->getAsString(Args) << A->getValue(); 1538 Opts.ASTDumpFormat = ADOF_Default; 1539 } 1540 LLVM_FALLTHROUGH; 1541 } 1542 case OPT_ast_dump: 1543 case OPT_ast_dump_all: 1544 case OPT_ast_dump_lookups: 1545 case OPT_ast_dump_decl_types: 1546 Opts.ProgramAction = frontend::ASTDump; break; 1547 case OPT_ast_print: 1548 Opts.ProgramAction = frontend::ASTPrint; break; 1549 case OPT_ast_view: 1550 Opts.ProgramAction = frontend::ASTView; break; 1551 case OPT_compiler_options_dump: 1552 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1553 case OPT_dump_raw_tokens: 1554 Opts.ProgramAction = frontend::DumpRawTokens; break; 1555 case OPT_dump_tokens: 1556 Opts.ProgramAction = frontend::DumpTokens; break; 1557 case OPT_S: 1558 Opts.ProgramAction = frontend::EmitAssembly; break; 1559 case OPT_emit_llvm_bc: 1560 Opts.ProgramAction = frontend::EmitBC; break; 1561 case OPT_emit_html: 1562 Opts.ProgramAction = frontend::EmitHTML; break; 1563 case OPT_emit_llvm: 1564 Opts.ProgramAction = frontend::EmitLLVM; break; 1565 case OPT_emit_llvm_only: 1566 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1567 case OPT_emit_codegen_only: 1568 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1569 case OPT_emit_obj: 1570 Opts.ProgramAction = frontend::EmitObj; break; 1571 case OPT_fixit_EQ: 1572 Opts.FixItSuffix = A->getValue(); 1573 LLVM_FALLTHROUGH; 1574 case OPT_fixit: 1575 Opts.ProgramAction = frontend::FixIt; break; 1576 case OPT_emit_module: 1577 Opts.ProgramAction = frontend::GenerateModule; break; 1578 case OPT_emit_module_interface: 1579 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1580 case OPT_emit_header_module: 1581 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1582 case OPT_emit_pch: 1583 Opts.ProgramAction = frontend::GeneratePCH; break; 1584 case OPT_emit_interface_stubs: { 1585 StringRef ArgStr = 1586 Args.hasArg(OPT_interface_stub_version_EQ) 1587 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1588 : "experimental-ifs-v2"; 1589 if (ArgStr == "experimental-yaml-elf-v1" || 1590 ArgStr == "experimental-ifs-v1" || 1591 ArgStr == "experimental-tapi-elf-v1") { 1592 std::string ErrorMessage = 1593 "Invalid interface stub format: " + ArgStr.str() + 1594 " is deprecated."; 1595 Diags.Report(diag::err_drv_invalid_value) 1596 << "Must specify a valid interface stub format type, ie: " 1597 "-interface-stub-version=experimental-ifs-v2" 1598 << ErrorMessage; 1599 } else if (!ArgStr.startswith("experimental-ifs-")) { 1600 std::string ErrorMessage = 1601 "Invalid interface stub format: " + ArgStr.str() + "."; 1602 Diags.Report(diag::err_drv_invalid_value) 1603 << "Must specify a valid interface stub format type, ie: " 1604 "-interface-stub-version=experimental-ifs-v2" 1605 << ErrorMessage; 1606 } else { 1607 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1608 } 1609 break; 1610 } 1611 case OPT_init_only: 1612 Opts.ProgramAction = frontend::InitOnly; break; 1613 case OPT_fsyntax_only: 1614 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1615 case OPT_module_file_info: 1616 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1617 case OPT_verify_pch: 1618 Opts.ProgramAction = frontend::VerifyPCH; break; 1619 case OPT_print_preamble: 1620 Opts.ProgramAction = frontend::PrintPreamble; break; 1621 case OPT_E: 1622 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1623 case OPT_templight_dump: 1624 Opts.ProgramAction = frontend::TemplightDump; break; 1625 case OPT_rewrite_macros: 1626 Opts.ProgramAction = frontend::RewriteMacros; break; 1627 case OPT_rewrite_objc: 1628 Opts.ProgramAction = frontend::RewriteObjC; break; 1629 case OPT_rewrite_test: 1630 Opts.ProgramAction = frontend::RewriteTest; break; 1631 case OPT_analyze: 1632 Opts.ProgramAction = frontend::RunAnalysis; break; 1633 case OPT_migrate: 1634 Opts.ProgramAction = frontend::MigrateSource; break; 1635 case OPT_Eonly: 1636 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1637 case OPT_print_dependency_directives_minimized_source: 1638 Opts.ProgramAction = 1639 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1640 break; 1641 } 1642 } 1643 1644 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1645 Opts.Plugins.emplace_back(A->getValue(0)); 1646 Opts.ProgramAction = frontend::PluginAction; 1647 Opts.ActionName = A->getValue(); 1648 } 1649 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1650 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1651 1652 for (const std::string &Arg : 1653 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1654 std::string BlockName; 1655 unsigned MajorVersion; 1656 unsigned MinorVersion; 1657 bool Hashed; 1658 std::string UserInfo; 1659 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1660 MinorVersion, Hashed, UserInfo)) { 1661 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1662 1663 continue; 1664 } 1665 1666 // Add the testing module file extension. 1667 Opts.ModuleFileExtensions.push_back( 1668 std::make_shared<TestModuleFileExtension>( 1669 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1670 } 1671 1672 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1673 Opts.CodeCompletionAt = 1674 ParsedSourceLocation::FromString(A->getValue()); 1675 if (Opts.CodeCompletionAt.FileName.empty()) 1676 Diags.Report(diag::err_drv_invalid_value) 1677 << A->getAsString(Args) << A->getValue(); 1678 } 1679 1680 Opts.Plugins = Args.getAllArgValues(OPT_load); 1681 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1682 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1683 // Only the -fmodule-file=<file> form. 1684 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1685 StringRef Val = A->getValue(); 1686 if (Val.find('=') == StringRef::npos) 1687 Opts.ModuleFiles.push_back(std::string(Val)); 1688 } 1689 1690 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1691 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1692 << "-emit-module"; 1693 1694 if (Args.hasArg(OPT_aux_target_cpu)) 1695 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1696 if (Args.hasArg(OPT_aux_target_feature)) 1697 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1698 1699 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1700 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1701 Diags.Report(diag::err_drv_argument_not_allowed_with) 1702 << "ARC migration" << "ObjC migration"; 1703 } 1704 1705 InputKind DashX(Language::Unknown); 1706 if (const Arg *A = Args.getLastArg(OPT_x)) { 1707 StringRef XValue = A->getValue(); 1708 1709 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1710 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1711 bool Preprocessed = XValue.consume_back("-cpp-output"); 1712 bool ModuleMap = XValue.consume_back("-module-map"); 1713 IsHeaderFile = !Preprocessed && !ModuleMap && 1714 XValue != "precompiled-header" && 1715 XValue.consume_back("-header"); 1716 1717 // Principal languages. 1718 DashX = llvm::StringSwitch<InputKind>(XValue) 1719 .Case("c", Language::C) 1720 .Case("cl", Language::OpenCL) 1721 .Case("cuda", Language::CUDA) 1722 .Case("hip", Language::HIP) 1723 .Case("c++", Language::CXX) 1724 .Case("objective-c", Language::ObjC) 1725 .Case("objective-c++", Language::ObjCXX) 1726 .Case("renderscript", Language::RenderScript) 1727 .Default(Language::Unknown); 1728 1729 // "objc[++]-cpp-output" is an acceptable synonym for 1730 // "objective-c[++]-cpp-output". 1731 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1732 DashX = llvm::StringSwitch<InputKind>(XValue) 1733 .Case("objc", Language::ObjC) 1734 .Case("objc++", Language::ObjCXX) 1735 .Default(Language::Unknown); 1736 1737 // Some special cases cannot be combined with suffixes. 1738 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1739 DashX = llvm::StringSwitch<InputKind>(XValue) 1740 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 1741 .Case("assembler-with-cpp", Language::Asm) 1742 .Cases("ast", "pcm", "precompiled-header", 1743 InputKind(Language::Unknown, InputKind::Precompiled)) 1744 .Case("ir", Language::LLVM_IR) 1745 .Default(Language::Unknown); 1746 1747 if (DashX.isUnknown()) 1748 Diags.Report(diag::err_drv_invalid_value) 1749 << A->getAsString(Args) << A->getValue(); 1750 1751 if (Preprocessed) 1752 DashX = DashX.getPreprocessed(); 1753 if (ModuleMap) 1754 DashX = DashX.withFormat(InputKind::ModuleMap); 1755 } 1756 1757 // '-' is the default input if none is given. 1758 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1759 Opts.Inputs.clear(); 1760 if (Inputs.empty()) 1761 Inputs.push_back("-"); 1762 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1763 InputKind IK = DashX; 1764 if (IK.isUnknown()) { 1765 IK = FrontendOptions::getInputKindForExtension( 1766 StringRef(Inputs[i]).rsplit('.').second); 1767 // FIXME: Warn on this? 1768 if (IK.isUnknown()) 1769 IK = Language::C; 1770 // FIXME: Remove this hack. 1771 if (i == 0) 1772 DashX = IK; 1773 } 1774 1775 bool IsSystem = false; 1776 1777 // The -emit-module action implicitly takes a module map. 1778 if (Opts.ProgramAction == frontend::GenerateModule && 1779 IK.getFormat() == InputKind::Source) { 1780 IK = IK.withFormat(InputKind::ModuleMap); 1781 IsSystem = Opts.IsSystemModule; 1782 } 1783 1784 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 1785 } 1786 1787 return DashX; 1788 } 1789 1790 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1791 void *MainAddr) { 1792 std::string ClangExecutable = 1793 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1794 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 1795 } 1796 1797 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1798 const std::string &WorkingDir) { 1799 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1800 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1801 1802 // Canonicalize -fmodules-cache-path before storing it. 1803 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1804 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1805 if (WorkingDir.empty()) 1806 llvm::sys::fs::make_absolute(P); 1807 else 1808 llvm::sys::fs::make_absolute(WorkingDir, P); 1809 } 1810 llvm::sys::path::remove_dots(P); 1811 Opts.ModuleCachePath = std::string(P.str()); 1812 1813 // Only the -fmodule-file=<name>=<file> form. 1814 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1815 StringRef Val = A->getValue(); 1816 if (Val.find('=') != StringRef::npos){ 1817 auto Split = Val.split('='); 1818 Opts.PrebuiltModuleFiles.insert( 1819 {std::string(Split.first), std::string(Split.second)}); 1820 } 1821 } 1822 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 1823 Opts.AddPrebuiltModulePath(A->getValue()); 1824 1825 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1826 StringRef MacroDef = A->getValue(); 1827 Opts.ModulesIgnoreMacros.insert( 1828 llvm::CachedHashString(MacroDef.split('=').first)); 1829 } 1830 1831 // Add -I..., -F..., and -index-header-map options in order. 1832 bool IsIndexHeaderMap = false; 1833 bool IsSysrootSpecified = 1834 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1835 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1836 if (A->getOption().matches(OPT_index_header_map)) { 1837 // -index-header-map applies to the next -I or -F. 1838 IsIndexHeaderMap = true; 1839 continue; 1840 } 1841 1842 frontend::IncludeDirGroup Group = 1843 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1844 1845 bool IsFramework = A->getOption().matches(OPT_F); 1846 std::string Path = A->getValue(); 1847 1848 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1849 SmallString<32> Buffer; 1850 llvm::sys::path::append(Buffer, Opts.Sysroot, 1851 llvm::StringRef(A->getValue()).substr(1)); 1852 Path = std::string(Buffer.str()); 1853 } 1854 1855 Opts.AddPath(Path, Group, IsFramework, 1856 /*IgnoreSysroot*/ true); 1857 IsIndexHeaderMap = false; 1858 } 1859 1860 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1861 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1862 for (const auto *A : 1863 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1864 if (A->getOption().matches(OPT_iprefix)) 1865 Prefix = A->getValue(); 1866 else if (A->getOption().matches(OPT_iwithprefix)) 1867 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1868 else 1869 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1870 } 1871 1872 for (const auto *A : Args.filtered(OPT_idirafter)) 1873 Opts.AddPath(A->getValue(), frontend::After, false, true); 1874 for (const auto *A : Args.filtered(OPT_iquote)) 1875 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1876 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1877 Opts.AddPath(A->getValue(), frontend::System, false, 1878 !A->getOption().matches(OPT_iwithsysroot)); 1879 for (const auto *A : Args.filtered(OPT_iframework)) 1880 Opts.AddPath(A->getValue(), frontend::System, true, true); 1881 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 1882 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1883 /*IgnoreSysRoot=*/false); 1884 1885 // Add the paths for the various language specific isystem flags. 1886 for (const auto *A : Args.filtered(OPT_c_isystem)) 1887 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1888 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 1889 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1890 for (const auto *A : Args.filtered(OPT_objc_isystem)) 1891 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1892 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 1893 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1894 1895 // Add the internal paths from a driver that detects standard include paths. 1896 for (const auto *A : 1897 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1898 frontend::IncludeDirGroup Group = frontend::System; 1899 if (A->getOption().matches(OPT_internal_externc_isystem)) 1900 Group = frontend::ExternCSystem; 1901 Opts.AddPath(A->getValue(), Group, false, true); 1902 } 1903 1904 // Add the path prefixes which are implicitly treated as being system headers. 1905 for (const auto *A : 1906 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1907 Opts.AddSystemHeaderPrefix( 1908 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1909 1910 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 1911 Opts.AddVFSOverlayFile(A->getValue()); 1912 } 1913 1914 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1915 const llvm::Triple &T, 1916 std::vector<std::string> &Includes, 1917 LangStandard::Kind LangStd) { 1918 // Set some properties which depend solely on the input kind; it would be nice 1919 // to move these to the language standard, and have the driver resolve the 1920 // input kind + language standard. 1921 // 1922 // FIXME: Perhaps a better model would be for a single source file to have 1923 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1924 // simultaneously active? 1925 if (IK.getLanguage() == Language::Asm) { 1926 Opts.AsmPreprocessor = 1; 1927 } else if (IK.isObjectiveC()) { 1928 Opts.ObjC = 1; 1929 } 1930 1931 if (LangStd == LangStandard::lang_unspecified) { 1932 // Based on the base language, pick one. 1933 switch (IK.getLanguage()) { 1934 case Language::Unknown: 1935 case Language::LLVM_IR: 1936 llvm_unreachable("Invalid input kind!"); 1937 case Language::OpenCL: 1938 LangStd = LangStandard::lang_opencl10; 1939 break; 1940 case Language::CUDA: 1941 LangStd = LangStandard::lang_cuda; 1942 break; 1943 case Language::Asm: 1944 case Language::C: 1945 #if defined(CLANG_DEFAULT_STD_C) 1946 LangStd = CLANG_DEFAULT_STD_C; 1947 #else 1948 // The PS4 uses C99 as the default C standard. 1949 if (T.isPS4()) 1950 LangStd = LangStandard::lang_gnu99; 1951 else 1952 LangStd = LangStandard::lang_gnu17; 1953 #endif 1954 break; 1955 case Language::ObjC: 1956 #if defined(CLANG_DEFAULT_STD_C) 1957 LangStd = CLANG_DEFAULT_STD_C; 1958 #else 1959 LangStd = LangStandard::lang_gnu11; 1960 #endif 1961 break; 1962 case Language::CXX: 1963 case Language::ObjCXX: 1964 #if defined(CLANG_DEFAULT_STD_CXX) 1965 LangStd = CLANG_DEFAULT_STD_CXX; 1966 #else 1967 LangStd = LangStandard::lang_gnucxx14; 1968 #endif 1969 break; 1970 case Language::RenderScript: 1971 LangStd = LangStandard::lang_c99; 1972 break; 1973 case Language::HIP: 1974 LangStd = LangStandard::lang_hip; 1975 break; 1976 } 1977 } 1978 1979 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1980 Opts.LangStd = LangStd; 1981 Opts.LineComment = Std.hasLineComments(); 1982 Opts.C99 = Std.isC99(); 1983 Opts.C11 = Std.isC11(); 1984 Opts.C17 = Std.isC17(); 1985 Opts.C2x = Std.isC2x(); 1986 Opts.CPlusPlus = Std.isCPlusPlus(); 1987 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1988 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1989 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 1990 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 1991 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 1992 Opts.GNUMode = Std.isGNUMode(); 1993 Opts.GNUCVersion = 0; 1994 Opts.HexFloats = Std.hasHexFloats(); 1995 Opts.ImplicitInt = Std.hasImplicitInt(); 1996 1997 // Set OpenCL Version. 1998 Opts.OpenCL = Std.isOpenCL(); 1999 if (LangStd == LangStandard::lang_opencl10) 2000 Opts.OpenCLVersion = 100; 2001 else if (LangStd == LangStandard::lang_opencl11) 2002 Opts.OpenCLVersion = 110; 2003 else if (LangStd == LangStandard::lang_opencl12) 2004 Opts.OpenCLVersion = 120; 2005 else if (LangStd == LangStandard::lang_opencl20) 2006 Opts.OpenCLVersion = 200; 2007 else if (LangStd == LangStandard::lang_opencl30) 2008 Opts.OpenCLVersion = 300; 2009 else if (LangStd == LangStandard::lang_openclcpp) 2010 Opts.OpenCLCPlusPlusVersion = 100; 2011 2012 // OpenCL has some additional defaults. 2013 if (Opts.OpenCL) { 2014 Opts.AltiVec = 0; 2015 Opts.ZVector = 0; 2016 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2017 Opts.NativeHalfType = 1; 2018 Opts.NativeHalfArgsAndReturns = 1; 2019 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2020 2021 // Include default header file for OpenCL. 2022 if (Opts.IncludeDefaultHeader) { 2023 if (Opts.DeclareOpenCLBuiltins) { 2024 // Only include base header file for builtin types and constants. 2025 Includes.push_back("opencl-c-base.h"); 2026 } else { 2027 Includes.push_back("opencl-c.h"); 2028 } 2029 } 2030 } 2031 2032 Opts.HIP = IK.getLanguage() == Language::HIP; 2033 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2034 if (Opts.HIP) { 2035 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 2036 // fuses multiplication/addition instructions without contract flag from 2037 // device library functions in LLVM bitcode, which causes accuracy loss in 2038 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 2039 // For device library functions in bitcode to work, 'Strict' or 'Standard' 2040 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 2041 // FP contract option is used to allow fuse across statements in frontend 2042 // whereas respecting contract flag in backend. 2043 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 2044 } else if (Opts.CUDA) { 2045 // Allow fuse across statements disregarding pragmas. 2046 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2047 } 2048 2049 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2050 if (Opts.RenderScript) { 2051 Opts.NativeHalfType = 1; 2052 Opts.NativeHalfArgsAndReturns = 1; 2053 } 2054 2055 // OpenCL and C++ both have bool, true, false keywords. 2056 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2057 2058 // OpenCL has half keyword 2059 Opts.Half = Opts.OpenCL; 2060 2061 // C++ has wchar_t keyword. 2062 Opts.WChar = Opts.CPlusPlus; 2063 2064 Opts.CXXOperatorNames = Opts.CPlusPlus; 2065 2066 Opts.AlignedAllocation = Opts.CPlusPlus17; 2067 2068 Opts.DollarIdents = !Opts.AsmPreprocessor; 2069 2070 // Enable [[]] attributes in C++11 and C2x by default. 2071 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2072 } 2073 2074 /// Check if input file kind and language standard are compatible. 2075 static bool IsInputCompatibleWithStandard(InputKind IK, 2076 const LangStandard &S) { 2077 switch (IK.getLanguage()) { 2078 case Language::Unknown: 2079 case Language::LLVM_IR: 2080 llvm_unreachable("should not parse language flags for this input"); 2081 2082 case Language::C: 2083 case Language::ObjC: 2084 case Language::RenderScript: 2085 return S.getLanguage() == Language::C; 2086 2087 case Language::OpenCL: 2088 return S.getLanguage() == Language::OpenCL; 2089 2090 case Language::CXX: 2091 case Language::ObjCXX: 2092 return S.getLanguage() == Language::CXX; 2093 2094 case Language::CUDA: 2095 // FIXME: What -std= values should be permitted for CUDA compilations? 2096 return S.getLanguage() == Language::CUDA || 2097 S.getLanguage() == Language::CXX; 2098 2099 case Language::HIP: 2100 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2101 2102 case Language::Asm: 2103 // Accept (and ignore) all -std= values. 2104 // FIXME: The -std= value is not ignored; it affects the tokenization 2105 // and preprocessing rules if we're preprocessing this asm input. 2106 return true; 2107 } 2108 2109 llvm_unreachable("unexpected input language"); 2110 } 2111 2112 /// Get language name for given input kind. 2113 static const StringRef GetInputKindName(InputKind IK) { 2114 switch (IK.getLanguage()) { 2115 case Language::C: 2116 return "C"; 2117 case Language::ObjC: 2118 return "Objective-C"; 2119 case Language::CXX: 2120 return "C++"; 2121 case Language::ObjCXX: 2122 return "Objective-C++"; 2123 case Language::OpenCL: 2124 return "OpenCL"; 2125 case Language::CUDA: 2126 return "CUDA"; 2127 case Language::RenderScript: 2128 return "RenderScript"; 2129 case Language::HIP: 2130 return "HIP"; 2131 2132 case Language::Asm: 2133 return "Asm"; 2134 case Language::LLVM_IR: 2135 return "LLVM IR"; 2136 2137 case Language::Unknown: 2138 break; 2139 } 2140 llvm_unreachable("unknown input language"); 2141 } 2142 2143 static void GenerateLangArgs(const LangOptions &Opts, 2144 SmallVectorImpl<const char *> &Args, 2145 CompilerInvocation::StringAllocator SA) { 2146 if (Opts.IncludeDefaultHeader) 2147 Args.push_back(SA(GetOptName(OPT_finclude_default_header))); 2148 if (Opts.DeclareOpenCLBuiltins) 2149 Args.push_back(SA(GetOptName(OPT_fdeclare_opencl_builtins))); 2150 } 2151 2152 void CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 2153 InputKind IK, const llvm::Triple &T, 2154 std::vector<std::string> &Includes, 2155 DiagnosticsEngine &Diags) { 2156 // FIXME: Cleanup per-file based stuff. 2157 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2158 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2159 LangStd = LangStandard::getLangKind(A->getValue()); 2160 if (LangStd == LangStandard::lang_unspecified) { 2161 Diags.Report(diag::err_drv_invalid_value) 2162 << A->getAsString(Args) << A->getValue(); 2163 // Report supported standards with short description. 2164 for (unsigned KindValue = 0; 2165 KindValue != LangStandard::lang_unspecified; 2166 ++KindValue) { 2167 const LangStandard &Std = LangStandard::getLangStandardForKind( 2168 static_cast<LangStandard::Kind>(KindValue)); 2169 if (IsInputCompatibleWithStandard(IK, Std)) { 2170 auto Diag = Diags.Report(diag::note_drv_use_standard); 2171 Diag << Std.getName() << Std.getDescription(); 2172 unsigned NumAliases = 0; 2173 #define LANGSTANDARD(id, name, lang, desc, features) 2174 #define LANGSTANDARD_ALIAS(id, alias) \ 2175 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2176 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2177 #include "clang/Basic/LangStandards.def" 2178 Diag << NumAliases; 2179 #define LANGSTANDARD(id, name, lang, desc, features) 2180 #define LANGSTANDARD_ALIAS(id, alias) \ 2181 if (KindValue == LangStandard::lang_##id) Diag << alias; 2182 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2183 #include "clang/Basic/LangStandards.def" 2184 } 2185 } 2186 } else { 2187 // Valid standard, check to make sure language and standard are 2188 // compatible. 2189 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2190 if (!IsInputCompatibleWithStandard(IK, Std)) { 2191 Diags.Report(diag::err_drv_argument_not_allowed_with) 2192 << A->getAsString(Args) << GetInputKindName(IK); 2193 } 2194 } 2195 } 2196 2197 // -cl-std only applies for OpenCL language standards. 2198 // Override the -std option in this case. 2199 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2200 LangStandard::Kind OpenCLLangStd 2201 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2202 .Cases("cl", "CL", LangStandard::lang_opencl10) 2203 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 2204 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2205 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2206 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2207 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 2208 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2209 .Default(LangStandard::lang_unspecified); 2210 2211 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2212 Diags.Report(diag::err_drv_invalid_value) 2213 << A->getAsString(Args) << A->getValue(); 2214 } 2215 else 2216 LangStd = OpenCLLangStd; 2217 } 2218 2219 // These need to be parsed now. They are used to set OpenCL defaults. 2220 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2221 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2222 2223 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 2224 2225 // The key paths of codegen options defined in Options.td start with 2226 // "LangOpts->". Let's provide the expected variable name and type. 2227 LangOptions *LangOpts = &Opts; 2228 bool Success = true; 2229 2230 #define LANG_OPTION_WITH_MARSHALLING( \ 2231 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2232 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2233 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2234 MERGER, EXTRACTOR, TABLE_INDEX) \ 2235 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2236 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2237 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2238 MERGER, TABLE_INDEX) 2239 #include "clang/Driver/Options.inc" 2240 #undef LANG_OPTION_WITH_MARSHALLING 2241 2242 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2243 StringRef Name = A->getValue(); 2244 if (Name == "full" || Name == "branch") { 2245 Opts.CFProtectionBranch = 1; 2246 } 2247 } 2248 2249 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2250 2251 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2252 // This option should be deprecated for CL > 1.0 because 2253 // this option was added for compatibility with OpenCL 1.0. 2254 if (Args.getLastArg(OPT_cl_strict_aliasing) 2255 && Opts.OpenCLVersion > 100) { 2256 Diags.Report(diag::warn_option_invalid_ocl_version) 2257 << Opts.getOpenCLVersionTuple().getAsString() 2258 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2259 } 2260 2261 if (Args.hasArg(OPT_fno_operator_names)) 2262 Opts.CXXOperatorNames = 0; 2263 2264 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2265 Opts.CUDADeviceApproxTranscendentals = 1; 2266 2267 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2268 if (Opts.HIP) 2269 Opts.GPUAllowDeviceInit = 1; 2270 else 2271 Diags.Report(diag::warn_ignored_hip_only_option) 2272 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2273 } 2274 if (Opts.HIP) 2275 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2276 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2277 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2278 Diags.Report(diag::warn_ignored_hip_only_option) 2279 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2280 2281 if (Opts.ObjC) { 2282 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2283 StringRef value = arg->getValue(); 2284 if (Opts.ObjCRuntime.tryParse(value)) 2285 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2286 } 2287 2288 if (Args.hasArg(OPT_fobjc_gc_only)) 2289 Opts.setGC(LangOptions::GCOnly); 2290 else if (Args.hasArg(OPT_fobjc_gc)) 2291 Opts.setGC(LangOptions::HybridGC); 2292 else if (Args.hasArg(OPT_fobjc_arc)) { 2293 Opts.ObjCAutoRefCount = 1; 2294 if (!Opts.ObjCRuntime.allowsARC()) 2295 Diags.Report(diag::err_arc_unsupported_on_runtime); 2296 } 2297 2298 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2299 // whether the feature is actually enabled. This is predominantly 2300 // determined by -fobjc-runtime, but we allow it to be overridden 2301 // from the command line for testing purposes. 2302 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2303 Opts.ObjCWeakRuntime = 1; 2304 else 2305 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2306 2307 // ObjCWeak determines whether __weak is actually enabled. 2308 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2309 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2310 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2311 assert(!Opts.ObjCWeak); 2312 } else if (Opts.getGC() != LangOptions::NonGC) { 2313 Diags.Report(diag::err_objc_weak_with_gc); 2314 } else if (!Opts.ObjCWeakRuntime) { 2315 Diags.Report(diag::err_objc_weak_unsupported); 2316 } else { 2317 Opts.ObjCWeak = 1; 2318 } 2319 } else if (Opts.ObjCAutoRefCount) { 2320 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2321 } 2322 2323 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2324 Opts.ObjCSubscriptingLegacyRuntime = 2325 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2326 } 2327 2328 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2329 // Check that the version has 1 to 3 components and the minor and patch 2330 // versions fit in two decimal digits. 2331 VersionTuple GNUCVer; 2332 bool Invalid = GNUCVer.tryParse(A->getValue()); 2333 unsigned Major = GNUCVer.getMajor(); 2334 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2335 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2336 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2337 Diags.Report(diag::err_drv_invalid_value) 2338 << A->getAsString(Args) << A->getValue(); 2339 } 2340 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2341 } 2342 2343 if (Args.hasArg(OPT_ftrapv)) { 2344 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2345 // Set the handler, if one is specified. 2346 Opts.OverflowHandler = 2347 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2348 } 2349 else if (Args.hasArg(OPT_fwrapv)) 2350 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2351 2352 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2353 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2354 Opts.MSCompatibilityVersion = 0; 2355 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2356 VersionTuple VT; 2357 if (VT.tryParse(A->getValue())) 2358 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2359 << A->getValue(); 2360 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2361 VT.getMinor().getValueOr(0) * 100000 + 2362 VT.getSubminor().getValueOr(0); 2363 } 2364 2365 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2366 // is specified, or -std is set to a conforming mode. 2367 // Trigraphs are disabled by default in c++1z onwards. 2368 // For z/OS, trigraphs are enabled by default (without regard to the above). 2369 Opts.Trigraphs = 2370 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 2371 Opts.Trigraphs = 2372 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2373 2374 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2375 OPT_fno_dollars_in_identifiers, 2376 Opts.DollarIdents); 2377 2378 // -ffixed-point 2379 Opts.FixedPoint = 2380 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2381 !Opts.CPlusPlus; 2382 Opts.PaddingOnUnsignedFixedPoint = 2383 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2384 OPT_fno_padding_on_unsigned_fixed_point, 2385 /*Default=*/false) && 2386 Opts.FixedPoint; 2387 2388 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2389 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2390 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2391 && Opts.OpenCLVersion == 200); 2392 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2393 2394 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2395 Opts.SYCLIsDevice || 2396 Args.hasArg(OPT_fconvergent_functions); 2397 2398 Opts.DoubleSquareBracketAttributes = 2399 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2400 OPT_fno_double_square_bracket_attributes, 2401 Opts.DoubleSquareBracketAttributes); 2402 2403 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2404 Opts.Modules = 2405 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2406 Opts.ModulesDeclUse = 2407 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2408 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2409 // enter a different module (eg, when building a header unit). 2410 Opts.ModulesLocalVisibility = 2411 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2412 Opts.CPlusPlusModules; 2413 Opts.ModulesSearchAll = Opts.Modules && 2414 !Args.hasArg(OPT_fno_modules_search_all) && 2415 Args.hasArg(OPT_fmodules_search_all); 2416 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2417 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2418 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2419 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2420 if (!Opts.NoBuiltin) 2421 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2422 Opts.AlignedAllocation = 2423 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2424 Opts.AlignedAllocation); 2425 Opts.AlignedAllocationUnavailable = 2426 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2427 if (Args.hasArg(OPT_fconcepts_ts)) 2428 Diags.Report(diag::warn_fe_concepts_ts_flag); 2429 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2430 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2431 ? 128 2432 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2433 Opts.EnableAIXExtendedAltivecABI = Args.hasArg(OPT_mabi_EQ_vec_extabi); 2434 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2435 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2436 || Args.hasArg(OPT_fdump_record_layouts); 2437 if (Opts.FastRelaxedMath) 2438 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2439 Opts.XLPragmaPack = Args.hasArg(OPT_fxl_pragma_pack); 2440 llvm::sort(Opts.ModuleFeatures); 2441 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2442 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2443 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2444 // is enabled. 2445 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2446 | Opts.NativeHalfArgsAndReturns; 2447 2448 Opts.ArmSveVectorBits = 2449 getLastArgIntValue(Args, options::OPT_msve_vector_bits_EQ, 0, Diags); 2450 2451 // __declspec is enabled by default for the PS4 by the driver, and also 2452 // enabled for Microsoft Extensions or Borland Extensions, here. 2453 // 2454 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2455 // CUDA extension. However, it is required for supporting 2456 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2457 // been rewritten in terms of something more generic, remove the Opts.CUDA 2458 // term here. 2459 Opts.DeclSpecKeyword = 2460 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2461 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2462 2463 // -mrtd option 2464 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2465 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2466 Diags.Report(diag::err_drv_argument_not_allowed_with) 2467 << A->getSpelling() << "-fdefault-calling-conv"; 2468 else { 2469 if (T.getArch() != llvm::Triple::x86) 2470 Diags.Report(diag::err_drv_argument_not_allowed_with) 2471 << A->getSpelling() << T.getTriple(); 2472 else 2473 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2474 } 2475 } 2476 2477 // Check if -fopenmp-simd is specified. 2478 bool IsSimdSpecified = 2479 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2480 /*Default=*/false); 2481 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2482 Opts.OpenMPUseTLS = 2483 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2484 Opts.OpenMPIsDevice = 2485 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2486 Opts.OpenMPIRBuilder = 2487 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 2488 bool IsTargetSpecified = 2489 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2490 2491 if (Opts.OpenMP || Opts.OpenMPSimd) { 2492 if (int Version = getLastArgIntValue( 2493 Args, OPT_fopenmp_version_EQ, 2494 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 2495 Opts.OpenMP = Version; 2496 // Provide diagnostic when a given target is not expected to be an OpenMP 2497 // device or host. 2498 if (!Opts.OpenMPIsDevice) { 2499 switch (T.getArch()) { 2500 default: 2501 break; 2502 // Add unsupported host targets here: 2503 case llvm::Triple::nvptx: 2504 case llvm::Triple::nvptx64: 2505 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 2506 break; 2507 } 2508 } 2509 } 2510 2511 // Set the flag to prevent the implementation from emitting device exception 2512 // handling code for those requiring so. 2513 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 2514 Opts.OpenCLCPlusPlus) { 2515 Opts.Exceptions = 0; 2516 Opts.CXXExceptions = 0; 2517 } 2518 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2519 Opts.OpenMPCUDANumSMs = 2520 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2521 Opts.OpenMPCUDANumSMs, Diags); 2522 Opts.OpenMPCUDABlocksPerSM = 2523 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2524 Opts.OpenMPCUDABlocksPerSM, Diags); 2525 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 2526 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 2527 Opts.OpenMPCUDAReductionBufNum, Diags); 2528 } 2529 2530 // Get the OpenMP target triples if any. 2531 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2532 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 2533 auto getArchPtrSize = [](const llvm::Triple &T) { 2534 if (T.isArch16Bit()) 2535 return Arch16Bit; 2536 if (T.isArch32Bit()) 2537 return Arch32Bit; 2538 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 2539 return Arch64Bit; 2540 }; 2541 2542 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2543 llvm::Triple TT(A->getValue(i)); 2544 2545 if (TT.getArch() == llvm::Triple::UnknownArch || 2546 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 2547 TT.getArch() == llvm::Triple::nvptx || 2548 TT.getArch() == llvm::Triple::nvptx64 || 2549 TT.getArch() == llvm::Triple::amdgcn || 2550 TT.getArch() == llvm::Triple::x86 || 2551 TT.getArch() == llvm::Triple::x86_64)) 2552 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2553 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 2554 Diags.Report(diag::err_drv_incompatible_omp_arch) 2555 << A->getValue(i) << T.str(); 2556 else 2557 Opts.OMPTargetTriples.push_back(TT); 2558 } 2559 } 2560 2561 // Get OpenMP host file path if any and report if a non existent file is 2562 // found 2563 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2564 Opts.OMPHostIRFile = A->getValue(); 2565 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2566 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 2567 << Opts.OMPHostIRFile; 2568 } 2569 2570 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 2571 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 2572 Args.hasArg(options::OPT_fopenmp_cuda_mode); 2573 2574 // Set CUDA support for parallel execution of target regions for OpenMP target 2575 // NVPTX/AMDGCN if specified in options. 2576 Opts.OpenMPCUDATargetParallel = 2577 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 2578 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 2579 2580 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 2581 Opts.OpenMPCUDAForceFullRuntime = 2582 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 2583 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 2584 2585 // Record whether the __DEPRECATED define was requested. 2586 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2587 OPT_fno_deprecated_macro, 2588 Opts.Deprecated); 2589 2590 // FIXME: Eliminate this dependency. 2591 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2592 OptSize = getOptimizationLevelSize(Args); 2593 Opts.Optimize = Opt != 0; 2594 Opts.OptimizeSize = OptSize != 0; 2595 2596 // This is the __NO_INLINE__ define, which just depends on things like the 2597 // optimization level and -fno-inline, not actually whether the backend has 2598 // inlining enabled. 2599 Opts.NoInlineDefine = !Opts.Optimize; 2600 if (Arg *InlineArg = Args.getLastArg( 2601 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2602 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2603 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2604 Opts.NoInlineDefine = true; 2605 2606 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2607 StringRef Val = A->getValue(); 2608 if (Val == "fast") 2609 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2610 else if (Val == "on") 2611 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2612 else if (Val == "off") 2613 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 2614 else if (Val == "fast-honor-pragmas") 2615 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 2616 else 2617 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2618 } 2619 2620 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 2621 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 2622 StringRef Val = A->getValue(); 2623 if (Val.equals("ignore")) 2624 FPEB = LangOptions::FPE_Ignore; 2625 else if (Val.equals("maytrap")) 2626 FPEB = LangOptions::FPE_MayTrap; 2627 else if (Val.equals("strict")) 2628 FPEB = LangOptions::FPE_Strict; 2629 else 2630 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2631 } 2632 Opts.setFPExceptionMode(FPEB); 2633 2634 // Parse -fsanitize= arguments. 2635 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2636 Diags, Opts.Sanitize); 2637 std::vector<std::string> systemBlacklists = 2638 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 2639 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 2640 systemBlacklists.begin(), 2641 systemBlacklists.end()); 2642 2643 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 2644 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 2645 2646 StringRef Ver = A->getValue(); 2647 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 2648 unsigned Major, Minor = 0; 2649 2650 // Check the version number is valid: either 3.x (0 <= x <= 9) or 2651 // y or y.0 (4 <= y <= current version). 2652 if (!VerParts.first.startswith("0") && 2653 !VerParts.first.getAsInteger(10, Major) && 2654 3 <= Major && Major <= CLANG_VERSION_MAJOR && 2655 (Major == 3 ? VerParts.second.size() == 1 && 2656 !VerParts.second.getAsInteger(10, Minor) 2657 : VerParts.first.size() == Ver.size() || 2658 VerParts.second == "0")) { 2659 // Got a valid version number. 2660 if (Major == 3 && Minor <= 8) 2661 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 2662 else if (Major <= 4) 2663 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 2664 else if (Major <= 6) 2665 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 2666 else if (Major <= 7) 2667 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 2668 else if (Major <= 9) 2669 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 2670 else if (Major <= 11) 2671 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 2672 } else if (Ver != "latest") { 2673 Diags.Report(diag::err_drv_invalid_value) 2674 << A->getAsString(Args) << A->getValue(); 2675 } 2676 } 2677 2678 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 2679 StringRef SignScope = A->getValue(); 2680 2681 if (SignScope.equals_lower("none")) 2682 Opts.setSignReturnAddressScope( 2683 LangOptions::SignReturnAddressScopeKind::None); 2684 else if (SignScope.equals_lower("all")) 2685 Opts.setSignReturnAddressScope( 2686 LangOptions::SignReturnAddressScopeKind::All); 2687 else if (SignScope.equals_lower("non-leaf")) 2688 Opts.setSignReturnAddressScope( 2689 LangOptions::SignReturnAddressScopeKind::NonLeaf); 2690 else 2691 Diags.Report(diag::err_drv_invalid_value) 2692 << A->getAsString(Args) << SignScope; 2693 2694 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 2695 StringRef SignKey = A->getValue(); 2696 if (!SignScope.empty() && !SignKey.empty()) { 2697 if (SignKey.equals_lower("a_key")) 2698 Opts.setSignReturnAddressKey( 2699 LangOptions::SignReturnAddressKeyKind::AKey); 2700 else if (SignKey.equals_lower("b_key")) 2701 Opts.setSignReturnAddressKey( 2702 LangOptions::SignReturnAddressKeyKind::BKey); 2703 else 2704 Diags.Report(diag::err_drv_invalid_value) 2705 << A->getAsString(Args) << SignKey; 2706 } 2707 } 2708 } 2709 2710 std::string ThreadModel = 2711 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 2712 if (ThreadModel != "posix" && ThreadModel != "single") 2713 Diags.Report(diag::err_drv_invalid_value) 2714 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) << ThreadModel; 2715 Opts.setThreadModel( 2716 llvm::StringSwitch<LangOptions::ThreadModelKind>(ThreadModel) 2717 .Case("posix", LangOptions::ThreadModelKind::POSIX) 2718 .Case("single", LangOptions::ThreadModelKind::Single)); 2719 } 2720 2721 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2722 switch (Action) { 2723 case frontend::ASTDeclList: 2724 case frontend::ASTDump: 2725 case frontend::ASTPrint: 2726 case frontend::ASTView: 2727 case frontend::EmitAssembly: 2728 case frontend::EmitBC: 2729 case frontend::EmitHTML: 2730 case frontend::EmitLLVM: 2731 case frontend::EmitLLVMOnly: 2732 case frontend::EmitCodeGenOnly: 2733 case frontend::EmitObj: 2734 case frontend::FixIt: 2735 case frontend::GenerateModule: 2736 case frontend::GenerateModuleInterface: 2737 case frontend::GenerateHeaderModule: 2738 case frontend::GeneratePCH: 2739 case frontend::GenerateInterfaceStubs: 2740 case frontend::ParseSyntaxOnly: 2741 case frontend::ModuleFileInfo: 2742 case frontend::VerifyPCH: 2743 case frontend::PluginAction: 2744 case frontend::RewriteObjC: 2745 case frontend::RewriteTest: 2746 case frontend::RunAnalysis: 2747 case frontend::TemplightDump: 2748 case frontend::MigrateSource: 2749 return false; 2750 2751 case frontend::DumpCompilerOptions: 2752 case frontend::DumpRawTokens: 2753 case frontend::DumpTokens: 2754 case frontend::InitOnly: 2755 case frontend::PrintPreamble: 2756 case frontend::PrintPreprocessedInput: 2757 case frontend::RewriteMacros: 2758 case frontend::RunPreprocessorOnly: 2759 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 2760 return true; 2761 } 2762 llvm_unreachable("invalid frontend action"); 2763 } 2764 2765 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2766 DiagnosticsEngine &Diags, 2767 frontend::ActionKind Action) { 2768 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 2769 Args.hasArg(OPT_pch_through_hdrstop_use); 2770 2771 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2772 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2773 2774 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 2775 auto Split = StringRef(A).split('='); 2776 Opts.MacroPrefixMap.insert( 2777 {std::string(Split.first), std::string(Split.second)}); 2778 } 2779 2780 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2781 StringRef Value(A->getValue()); 2782 size_t Comma = Value.find(','); 2783 unsigned Bytes = 0; 2784 unsigned EndOfLine = 0; 2785 2786 if (Comma == StringRef::npos || 2787 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2788 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2789 Diags.Report(diag::err_drv_preamble_format); 2790 else { 2791 Opts.PrecompiledPreambleBytes.first = Bytes; 2792 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2793 } 2794 } 2795 2796 // Add the __CET__ macro if a CFProtection option is set. 2797 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2798 StringRef Name = A->getValue(); 2799 if (Name == "branch") 2800 Opts.addMacroDef("__CET__=1"); 2801 else if (Name == "return") 2802 Opts.addMacroDef("__CET__=2"); 2803 else if (Name == "full") 2804 Opts.addMacroDef("__CET__=3"); 2805 } 2806 2807 // Add macros from the command line. 2808 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 2809 if (A->getOption().matches(OPT_D)) 2810 Opts.addMacroDef(A->getValue()); 2811 else 2812 Opts.addMacroUndef(A->getValue()); 2813 } 2814 2815 // Add the ordered list of -includes. 2816 for (const auto *A : Args.filtered(OPT_include)) 2817 Opts.Includes.emplace_back(A->getValue()); 2818 2819 for (const auto *A : Args.filtered(OPT_chain_include)) 2820 Opts.ChainedIncludes.emplace_back(A->getValue()); 2821 2822 for (const auto *A : Args.filtered(OPT_remap_file)) { 2823 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2824 2825 if (Split.second.empty()) { 2826 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2827 continue; 2828 } 2829 2830 Opts.addRemappedFile(Split.first, Split.second); 2831 } 2832 2833 // Always avoid lexing editor placeholders when we're just running the 2834 // preprocessor as we never want to emit the 2835 // "editor placeholder in source file" error in PP only mode. 2836 if (isStrictlyPreprocessorAction(Action)) 2837 Opts.LexEditorPlaceholders = false; 2838 } 2839 2840 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2841 ArgList &Args, 2842 frontend::ActionKind Action) { 2843 if (isStrictlyPreprocessorAction(Action)) 2844 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2845 else 2846 Opts.ShowCPP = 0; 2847 2848 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2849 } 2850 2851 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2852 DiagnosticsEngine &Diags) { 2853 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 2854 llvm::VersionTuple Version; 2855 if (Version.tryParse(A->getValue())) 2856 Diags.Report(diag::err_drv_invalid_value) 2857 << A->getAsString(Args) << A->getValue(); 2858 else 2859 Opts.SDKVersion = Version; 2860 } 2861 } 2862 2863 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2864 ArrayRef<const char *> CommandLineArgs, 2865 DiagnosticsEngine &Diags, 2866 const char *Argv0) { 2867 bool Success = true; 2868 2869 // Parse the arguments. 2870 const OptTable &Opts = getDriverOptTable(); 2871 const unsigned IncludedFlagsBitmask = options::CC1Option; 2872 unsigned MissingArgIndex, MissingArgCount; 2873 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 2874 MissingArgCount, IncludedFlagsBitmask); 2875 LangOptions &LangOpts = *Res.getLangOpts(); 2876 2877 // Check for missing argument error. 2878 if (MissingArgCount) { 2879 Diags.Report(diag::err_drv_missing_argument) 2880 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2881 Success = false; 2882 } 2883 2884 // Issue errors on unknown arguments. 2885 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 2886 auto ArgString = A->getAsString(Args); 2887 std::string Nearest; 2888 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 2889 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 2890 else 2891 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 2892 << ArgString << Nearest; 2893 Success = false; 2894 } 2895 2896 Success &= Res.parseSimpleArgs(Args, Diags); 2897 2898 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2899 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2900 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 2901 Res.getDependencyOutputOpts().Targets.empty()) { 2902 Diags.Report(diag::err_fe_dependency_file_requires_MT); 2903 Success = false; 2904 } 2905 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2906 /*DefaultDiagColor=*/false); 2907 // FIXME: We shouldn't have to pass the DashX option around here 2908 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2909 LangOpts.IsHeaderFile); 2910 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2911 llvm::Triple T(Res.getTargetOpts().Triple); 2912 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2913 Res.getFileSystemOpts().WorkingDir); 2914 if (DashX.getFormat() == InputKind::Precompiled || 2915 DashX.getLanguage() == Language::LLVM_IR) { 2916 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2917 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2918 // what the input type is. 2919 if (Args.hasArg(OPT_fobjc_arc)) 2920 LangOpts.ObjCAutoRefCount = 1; 2921 // PIClevel and PIELevel are needed during code generation and this should be 2922 // set regardless of the input type. 2923 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2924 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2925 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2926 Diags, LangOpts.Sanitize); 2927 } else { 2928 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 2929 // FIXME: Should we really be calling this for an Language::Asm input? 2930 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 2931 Diags); 2932 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2933 LangOpts.ObjCExceptions = 1; 2934 if (T.isOSDarwin() && DashX.isPreprocessed()) { 2935 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 2936 // preprocessed input as we don't expect it to be used with -std=libc++ 2937 // anyway. 2938 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 2939 } 2940 } 2941 2942 if (LangOpts.CUDA) { 2943 // During CUDA device-side compilation, the aux triple is the 2944 // triple used for host compilation. 2945 if (LangOpts.CUDAIsDevice) 2946 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2947 } 2948 2949 // Set the triple of the host for OpenMP device compile. 2950 if (LangOpts.OpenMPIsDevice) 2951 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2952 2953 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 2954 Res.getFrontendOpts().OutputFile, LangOpts); 2955 2956 // FIXME: Override value name discarding when asan or msan is used because the 2957 // backend passes depend on the name of the alloca in order to print out 2958 // names. 2959 Res.getCodeGenOpts().DiscardValueNames &= 2960 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2961 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 2962 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 2963 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 2964 2965 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 2966 Res.getFrontendOpts().ProgramAction); 2967 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2968 Res.getFrontendOpts().ProgramAction); 2969 2970 // Turn on -Wspir-compat for SPIR target. 2971 if (T.isSPIR()) 2972 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2973 2974 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 2975 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 2976 !Res.getLangOpts()->Sanitize.empty()) { 2977 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 2978 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 2979 } 2980 2981 // Store the command-line for using in the CodeView backend. 2982 Res.getCodeGenOpts().Argv0 = Argv0; 2983 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 2984 2985 FixupInvocation(Res, Diags, Args, DashX); 2986 2987 return Success; 2988 } 2989 2990 std::string CompilerInvocation::getModuleHash() const { 2991 // Note: For QoI reasons, the things we use as a hash here should all be 2992 // dumped via the -module-info flag. 2993 using llvm::hash_code; 2994 using llvm::hash_value; 2995 using llvm::hash_combine; 2996 using llvm::hash_combine_range; 2997 2998 // Start the signature with the compiler version. 2999 // FIXME: We'd rather use something more cryptographically sound than 3000 // CityHash, but this will do for now. 3001 hash_code code = hash_value(getClangFullRepositoryVersion()); 3002 3003 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3004 // and getClangFullRepositoryVersion() doesn't include git revision. 3005 code = hash_combine(code, serialization::VERSION_MAJOR, 3006 serialization::VERSION_MINOR); 3007 3008 // Extend the signature with the language options 3009 #define LANGOPT(Name, Bits, Default, Description) \ 3010 code = hash_combine(code, LangOpts->Name); 3011 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3012 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3013 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3014 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3015 #include "clang/Basic/LangOptions.def" 3016 3017 for (StringRef Feature : LangOpts->ModuleFeatures) 3018 code = hash_combine(code, Feature); 3019 3020 code = hash_combine(code, LangOpts->ObjCRuntime); 3021 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 3022 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 3023 3024 // Extend the signature with the target options. 3025 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3026 TargetOpts->TuneCPU, TargetOpts->ABI); 3027 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3028 code = hash_combine(code, FeatureAsWritten); 3029 3030 // Extend the signature with preprocessor options. 3031 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3032 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3033 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3034 3035 for (const auto &I : getPreprocessorOpts().Macros) { 3036 // If we're supposed to ignore this macro for the purposes of modules, 3037 // don't put it into the hash. 3038 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3039 // Check whether we're ignoring this macro. 3040 StringRef MacroDef = I.first; 3041 if (hsOpts.ModulesIgnoreMacros.count( 3042 llvm::CachedHashString(MacroDef.split('=').first))) 3043 continue; 3044 } 3045 3046 code = hash_combine(code, I.first, I.second); 3047 } 3048 3049 // Extend the signature with the sysroot and other header search options. 3050 code = hash_combine(code, hsOpts.Sysroot, 3051 hsOpts.ModuleFormat, 3052 hsOpts.UseDebugInfo, 3053 hsOpts.UseBuiltinIncludes, 3054 hsOpts.UseStandardSystemIncludes, 3055 hsOpts.UseStandardCXXIncludes, 3056 hsOpts.UseLibcxx, 3057 hsOpts.ModulesValidateDiagnosticOptions); 3058 code = hash_combine(code, hsOpts.ResourceDir); 3059 3060 if (hsOpts.ModulesStrictContextHash) { 3061 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3062 hsOpts.SystemHeaderPrefixes.end()); 3063 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3064 hsOpts.UserEntries.end()); 3065 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3066 hsOpts.UserEntries.size(), UEC); 3067 3068 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3069 #define DIAGOPT(Name, Bits, Default) \ 3070 code = hash_combine(code, diagOpts.Name); 3071 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3072 code = hash_combine(code, diagOpts.get##Name()); 3073 #include "clang/Basic/DiagnosticOptions.def" 3074 #undef DIAGOPT 3075 #undef ENUM_DIAGOPT 3076 } 3077 3078 // Extend the signature with the user build path. 3079 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3080 3081 // Extend the signature with the module file extensions. 3082 const FrontendOptions &frontendOpts = getFrontendOpts(); 3083 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3084 code = ext->hashExtension(code); 3085 } 3086 3087 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3088 // affects the debug info in the PCM. 3089 if (getCodeGenOpts().DebugTypeExtRefs) 3090 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3091 code = hash_combine(code, KeyValue.first, KeyValue.second); 3092 3093 // Extend the signature with the enabled sanitizers, if at least one is 3094 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3095 SanitizerSet SanHash = LangOpts->Sanitize; 3096 SanHash.clear(getPPTransparentSanitizers()); 3097 if (!SanHash.empty()) 3098 code = hash_combine(code, SanHash.Mask); 3099 3100 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3101 } 3102 3103 void CompilerInvocation::generateCC1CommandLine( 3104 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 3105 // Capture the extracted value as a lambda argument to avoid potential issues 3106 // with lifetime extension of the reference. 3107 #define GENERATE_OPTION_WITH_MARSHALLING( \ 3108 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 3109 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 3110 TABLE_INDEX) \ 3111 if ((FLAGS)&options::CC1Option) { \ 3112 [&](const auto &Extracted) { \ 3113 if (ALWAYS_EMIT || \ 3114 (Extracted != \ 3115 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 3116 : (DEFAULT_VALUE)))) \ 3117 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 3118 TABLE_INDEX, Extracted); \ 3119 }(EXTRACTOR(KEYPATH)); \ 3120 } 3121 3122 #define OPTION_WITH_MARSHALLING( \ 3123 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3124 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3125 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3126 MERGER, EXTRACTOR, TABLE_INDEX) \ 3127 GENERATE_OPTION_WITH_MARSHALLING(Args, SA, KIND, FLAGS, SPELLING, \ 3128 ALWAYS_EMIT, this->KEYPATH, DEFAULT_VALUE, \ 3129 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, \ 3130 EXTRACTOR, TABLE_INDEX) 3131 3132 #define DIAG_OPTION_WITH_MARSHALLING OPTION_WITH_MARSHALLING 3133 #define LANG_OPTION_WITH_MARSHALLING OPTION_WITH_MARSHALLING 3134 #define CODEGEN_OPTION_WITH_MARSHALLING OPTION_WITH_MARSHALLING 3135 3136 #include "clang/Driver/Options.inc" 3137 3138 #undef CODEGEN_OPTION_WITH_MARSHALLING 3139 #undef LANG_OPTION_WITH_MARSHALLING 3140 #undef DIAG_OPTION_WITH_MARSHALLING 3141 #undef OPTION_WITH_MARSHALLING 3142 #undef GENERATE_OPTION_WITH_MARSHALLING 3143 3144 GenerateLangArgs(*LangOpts, Args, SA); 3145 } 3146 3147 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3148 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3149 DiagnosticsEngine &Diags) { 3150 return createVFSFromCompilerInvocation(CI, Diags, 3151 llvm::vfs::getRealFileSystem()); 3152 } 3153 3154 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3155 clang::createVFSFromCompilerInvocation( 3156 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3157 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3158 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3159 return BaseFS; 3160 3161 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3162 // earlier vfs files are on the bottom 3163 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3164 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3165 Result->getBufferForFile(File); 3166 if (!Buffer) { 3167 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3168 continue; 3169 } 3170 3171 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3172 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3173 /*DiagContext*/ nullptr, Result); 3174 if (!FS) { 3175 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3176 continue; 3177 } 3178 3179 Result = FS; 3180 } 3181 return Result; 3182 } 3183