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> normalizeSimpleFlag(OptSpecifier Opt, 133 unsigned TableIndex, 134 const ArgList &Args, 135 DiagnosticsEngine &Diags) { 136 if (Args.hasArg(Opt)) 137 return true; 138 return None; 139 } 140 141 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 142 const ArgList &Args, 143 DiagnosticsEngine &) { 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, unsigned, 156 /*T*/...) { 157 Args.push_back(Spelling); 158 } 159 160 namespace { 161 template <typename T> struct FlagToValueNormalizer { 162 T Value; 163 164 Optional<T> operator()(OptSpecifier Opt, unsigned, const ArgList &Args, 165 DiagnosticsEngine &) { 166 if (Args.hasArg(Opt)) 167 return Value; 168 return None; 169 } 170 }; 171 } // namespace 172 173 template <typename T> static constexpr bool is_int_convertible() { 174 return sizeof(T) <= sizeof(uint64_t) && 175 std::is_trivially_constructible<T, uint64_t>::value && 176 std::is_trivially_constructible<uint64_t, T>::value; 177 } 178 179 template <typename T, std::enable_if_t<is_int_convertible<T>(), bool> = false> 180 static FlagToValueNormalizer<uint64_t> makeFlagToValueNormalizer(T Value) { 181 return FlagToValueNormalizer<uint64_t>{Value}; 182 } 183 184 template <typename T, std::enable_if_t<!is_int_convertible<T>(), bool> = false> 185 static FlagToValueNormalizer<T> makeFlagToValueNormalizer(T Value) { 186 return FlagToValueNormalizer<T>{std::move(Value)}; 187 } 188 189 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 190 OptSpecifier OtherOpt) { 191 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 192 const ArgList &Args, 193 DiagnosticsEngine &) -> Optional<bool> { 194 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 195 return A->getOption().matches(Opt) ? Value : OtherValue; 196 } 197 return None; 198 }; 199 } 200 201 static auto makeBooleanOptionDenormalizer(bool Value) { 202 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 203 CompilerInvocation::StringAllocator, unsigned, bool KeyPath) { 204 if (KeyPath == Value) 205 Args.push_back(Spelling); 206 }; 207 } 208 209 static Optional<SimpleEnumValue> 210 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 211 for (int I = 0, E = Table.Size; I != E; ++I) 212 if (Name == Table.Table[I].Name) 213 return Table.Table[I]; 214 215 return None; 216 } 217 218 static Optional<SimpleEnumValue> 219 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 220 for (int I = 0, E = Table.Size; I != E; ++I) 221 if (Value == Table.Table[I].Value) 222 return Table.Table[I]; 223 224 return None; 225 } 226 227 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 228 unsigned TableIndex, 229 const ArgList &Args, 230 DiagnosticsEngine &Diags) { 231 assert(TableIndex < SimpleEnumValueTablesSize); 232 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 233 234 auto *Arg = Args.getLastArg(Opt); 235 if (!Arg) 236 return None; 237 238 StringRef ArgValue = Arg->getValue(); 239 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 240 return MaybeEnumVal->Value; 241 242 Diags.Report(diag::err_drv_invalid_value) 243 << Arg->getAsString(Args) << ArgValue; 244 return None; 245 } 246 247 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 248 const char *Spelling, 249 CompilerInvocation::StringAllocator SA, 250 unsigned TableIndex, unsigned Value) { 251 assert(TableIndex < SimpleEnumValueTablesSize); 252 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 253 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 254 Args.push_back(Spelling); 255 Args.push_back(MaybeEnumVal->Name); 256 } else { 257 llvm_unreachable("The simple enum value was not correctly defined in " 258 "the tablegen option description"); 259 } 260 } 261 262 static void denormalizeSimpleEnumJoined(SmallVectorImpl<const char *> &Args, 263 const char *Spelling, 264 CompilerInvocation::StringAllocator SA, 265 unsigned TableIndex, unsigned Value) { 266 assert(TableIndex < SimpleEnumValueTablesSize); 267 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 268 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) 269 Args.push_back(SA(Twine(Spelling) + MaybeEnumVal->Name)); 270 else 271 llvm_unreachable("The simple enum value was not correctly defined in " 272 "the tablegen option description"); 273 } 274 275 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 276 const ArgList &Args, 277 DiagnosticsEngine &Diags) { 278 auto *Arg = Args.getLastArg(Opt); 279 if (!Arg) 280 return None; 281 return std::string(Arg->getValue()); 282 } 283 284 static void denormalizeString(SmallVectorImpl<const char *> &Args, 285 const char *Spelling, 286 CompilerInvocation::StringAllocator SA, unsigned, 287 Twine Value) { 288 Args.push_back(Spelling); 289 Args.push_back(SA(Value)); 290 } 291 292 template <typename T, 293 std::enable_if_t<!std::is_convertible<T, Twine>::value && 294 std::is_constructible<Twine, T>::value, 295 bool> = false> 296 static void denormalizeString(SmallVectorImpl<const char *> &Args, 297 const char *Spelling, 298 CompilerInvocation::StringAllocator SA, 299 unsigned TableIndex, T Value) { 300 denormalizeString(Args, Spelling, SA, TableIndex, Twine(Value)); 301 } 302 303 template <typename IntTy> 304 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 305 const ArgList &Args, 306 DiagnosticsEngine &Diags) { 307 auto *Arg = Args.getLastArg(Opt); 308 if (!Arg) 309 return None; 310 IntTy Res; 311 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 312 Diags.Report(diag::err_drv_invalid_int_value) 313 << Arg->getAsString(Args) << Arg->getValue(); 314 } 315 return Res; 316 } 317 318 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 319 const ArgList &Args, 320 DiagnosticsEngine &Diags) { 321 auto *Arg = Args.getLastArg(Opt); 322 if (!Arg) 323 return None; 324 return llvm::Triple::normalize(Arg->getValue()); 325 } 326 327 template <typename T, typename U> 328 static T mergeForwardValue(T KeyPath, U Value) { 329 return static_cast<T>(Value); 330 } 331 332 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 333 return KeyPath | Value; 334 } 335 336 template <typename T> static T extractForwardValue(T KeyPath) { 337 return KeyPath; 338 } 339 340 template <typename T, typename U, U Value> 341 static T extractMaskValue(T KeyPath) { 342 return KeyPath & Value; 343 } 344 345 static void FixupInvocation(CompilerInvocation &Invocation, 346 DiagnosticsEngine &Diags) { 347 LangOptions &LangOpts = *Invocation.getLangOpts(); 348 DiagnosticOptions &DiagOpts = Invocation.getDiagnosticOpts(); 349 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 350 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 351 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 352 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 353 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 354 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 355 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 356 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 357 358 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 359 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 360 361 llvm::sys::Process::UseANSIEscapeCodes(DiagOpts.UseANSIEscapeCodes); 362 363 llvm::Triple T(TargetOpts.Triple); 364 365 if (LangOpts.getExceptionHandling() != llvm::ExceptionHandling::None && 366 T.isWindowsMSVCEnvironment()) 367 Diags.Report(diag::err_fe_invalid_exception_model) 368 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 369 370 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 371 Diags.Report(diag::warn_c_kext); 372 } 373 374 //===----------------------------------------------------------------------===// 375 // Deserialization (from args) 376 //===----------------------------------------------------------------------===// 377 378 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 379 DiagnosticsEngine &Diags) { 380 unsigned DefaultOpt = llvm::CodeGenOpt::None; 381 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 382 DefaultOpt = llvm::CodeGenOpt::Default; 383 384 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 385 if (A->getOption().matches(options::OPT_O0)) 386 return llvm::CodeGenOpt::None; 387 388 if (A->getOption().matches(options::OPT_Ofast)) 389 return llvm::CodeGenOpt::Aggressive; 390 391 assert(A->getOption().matches(options::OPT_O)); 392 393 StringRef S(A->getValue()); 394 if (S == "s" || S == "z") 395 return llvm::CodeGenOpt::Default; 396 397 if (S == "g") 398 return llvm::CodeGenOpt::Less; 399 400 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 401 } 402 403 return DefaultOpt; 404 } 405 406 static unsigned getOptimizationLevelSize(ArgList &Args) { 407 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 408 if (A->getOption().matches(options::OPT_O)) { 409 switch (A->getValue()[0]) { 410 default: 411 return 0; 412 case 's': 413 return 1; 414 case 'z': 415 return 2; 416 } 417 } 418 } 419 return 0; 420 } 421 422 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 423 OptSpecifier GroupWithValue, 424 std::vector<std::string> &Diagnostics) { 425 for (auto *A : Args.filtered(Group)) { 426 if (A->getOption().getKind() == Option::FlagClass) { 427 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 428 // its name (minus the "W" or "R" at the beginning) to the warning list. 429 Diagnostics.push_back( 430 std::string(A->getOption().getName().drop_front(1))); 431 } else if (A->getOption().matches(GroupWithValue)) { 432 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 433 Diagnostics.push_back( 434 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 435 } else { 436 // Otherwise, add its value (for OPT_W_Joined and similar). 437 for (const auto *Arg : A->getValues()) 438 Diagnostics.emplace_back(Arg); 439 } 440 } 441 } 442 443 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 444 // it won't verify the input. 445 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 446 DiagnosticsEngine *Diags); 447 448 static void getAllNoBuiltinFuncValues(ArgList &Args, 449 std::vector<std::string> &Funcs) { 450 SmallVector<const char *, 8> Values; 451 for (const auto &Arg : Args) { 452 const Option &O = Arg->getOption(); 453 if (O.matches(options::OPT_fno_builtin_)) { 454 const char *FuncName = Arg->getValue(); 455 if (Builtin::Context::isBuiltinFunc(FuncName)) 456 Values.push_back(FuncName); 457 } 458 } 459 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 460 } 461 462 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 463 DiagnosticsEngine &Diags) { 464 bool Success = true; 465 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 466 StringRef Name = A->getValue(); 467 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 468 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 469 .Case(CMDFLAG, NAME##Model) 470 #include "clang/StaticAnalyzer/Core/Analyses.def" 471 .Default(NumStores); 472 if (Value == NumStores) { 473 Diags.Report(diag::err_drv_invalid_value) 474 << A->getAsString(Args) << Name; 475 Success = false; 476 } else { 477 Opts.AnalysisStoreOpt = Value; 478 } 479 } 480 481 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 482 StringRef Name = A->getValue(); 483 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 484 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 485 .Case(CMDFLAG, NAME##Model) 486 #include "clang/StaticAnalyzer/Core/Analyses.def" 487 .Default(NumConstraints); 488 if (Value == NumConstraints) { 489 Diags.Report(diag::err_drv_invalid_value) 490 << A->getAsString(Args) << Name; 491 Success = false; 492 } else { 493 Opts.AnalysisConstraintsOpt = Value; 494 } 495 } 496 497 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 498 StringRef Name = A->getValue(); 499 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 500 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 501 .Case(CMDFLAG, PD_##NAME) 502 #include "clang/StaticAnalyzer/Core/Analyses.def" 503 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 504 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 505 Diags.Report(diag::err_drv_invalid_value) 506 << A->getAsString(Args) << Name; 507 Success = false; 508 } else { 509 Opts.AnalysisDiagOpt = Value; 510 } 511 } 512 513 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 514 StringRef Name = A->getValue(); 515 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 516 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 517 .Case(CMDFLAG, NAME) 518 #include "clang/StaticAnalyzer/Core/Analyses.def" 519 .Default(NumPurgeModes); 520 if (Value == NumPurgeModes) { 521 Diags.Report(diag::err_drv_invalid_value) 522 << A->getAsString(Args) << Name; 523 Success = false; 524 } else { 525 Opts.AnalysisPurgeOpt = Value; 526 } 527 } 528 529 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 530 StringRef Name = A->getValue(); 531 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 532 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 533 .Case(CMDFLAG, NAME) 534 #include "clang/StaticAnalyzer/Core/Analyses.def" 535 .Default(NumInliningModes); 536 if (Value == NumInliningModes) { 537 Diags.Report(diag::err_drv_invalid_value) 538 << A->getAsString(Args) << Name; 539 Success = false; 540 } else { 541 Opts.InliningMode = Value; 542 } 543 } 544 545 Opts.ShouldEmitErrorsOnInvalidConfigValue = 546 /* negated */!llvm::StringSwitch<bool>( 547 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 548 .Case("true", true) 549 .Case("false", false) 550 .Default(false); 551 552 Opts.CheckersAndPackages.clear(); 553 for (const Arg *A : 554 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 555 A->claim(); 556 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 557 // We can have a list of comma separated checker names, e.g: 558 // '-analyzer-checker=cocoa,unix' 559 StringRef CheckerAndPackageList = A->getValue(); 560 SmallVector<StringRef, 16> CheckersAndPackages; 561 CheckerAndPackageList.split(CheckersAndPackages, ","); 562 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 563 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 564 IsEnabled); 565 } 566 567 // Go through the analyzer configuration options. 568 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 569 570 // We can have a list of comma separated config names, e.g: 571 // '-analyzer-config key1=val1,key2=val2' 572 StringRef configList = A->getValue(); 573 SmallVector<StringRef, 4> configVals; 574 configList.split(configVals, ","); 575 for (const auto &configVal : configVals) { 576 StringRef key, val; 577 std::tie(key, val) = configVal.split("="); 578 if (val.empty()) { 579 Diags.Report(SourceLocation(), 580 diag::err_analyzer_config_no_value) << configVal; 581 Success = false; 582 break; 583 } 584 if (val.find('=') != StringRef::npos) { 585 Diags.Report(SourceLocation(), 586 diag::err_analyzer_config_multiple_values) 587 << configVal; 588 Success = false; 589 break; 590 } 591 592 // TODO: Check checker options too, possibly in CheckerRegistry. 593 // Leave unknown non-checker configs unclaimed. 594 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 595 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 596 Diags.Report(diag::err_analyzer_config_unknown) << key; 597 continue; 598 } 599 600 A->claim(); 601 Opts.Config[key] = std::string(val); 602 } 603 } 604 605 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 606 parseAnalyzerConfigs(Opts, &Diags); 607 else 608 parseAnalyzerConfigs(Opts, nullptr); 609 610 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 611 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 612 if (i != 0) 613 os << " "; 614 os << Args.getArgString(i); 615 } 616 os.flush(); 617 618 return Success; 619 } 620 621 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 622 StringRef OptionName, StringRef DefaultVal) { 623 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 624 } 625 626 static void initOption(AnalyzerOptions::ConfigTable &Config, 627 DiagnosticsEngine *Diags, 628 StringRef &OptionField, StringRef Name, 629 StringRef DefaultVal) { 630 // String options may be known to invalid (e.g. if the expected string is a 631 // file name, but the file does not exist), those will have to be checked in 632 // parseConfigs. 633 OptionField = getStringOption(Config, Name, DefaultVal); 634 } 635 636 static void initOption(AnalyzerOptions::ConfigTable &Config, 637 DiagnosticsEngine *Diags, 638 bool &OptionField, StringRef Name, bool DefaultVal) { 639 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 640 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 641 .Case("true", true) 642 .Case("false", false) 643 .Default(None); 644 645 if (!PossiblyInvalidVal) { 646 if (Diags) 647 Diags->Report(diag::err_analyzer_config_invalid_input) 648 << Name << "a boolean"; 649 else 650 OptionField = DefaultVal; 651 } else 652 OptionField = PossiblyInvalidVal.getValue(); 653 } 654 655 static void initOption(AnalyzerOptions::ConfigTable &Config, 656 DiagnosticsEngine *Diags, 657 unsigned &OptionField, StringRef Name, 658 unsigned DefaultVal) { 659 660 OptionField = DefaultVal; 661 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 662 .getAsInteger(0, OptionField); 663 if (Diags && HasFailed) 664 Diags->Report(diag::err_analyzer_config_invalid_input) 665 << Name << "an unsigned"; 666 } 667 668 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 669 DiagnosticsEngine *Diags) { 670 // TODO: There's no need to store the entire configtable, it'd be plenty 671 // enough tostore checker options. 672 673 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 674 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 675 676 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 677 SHALLOW_VAL, DEEP_VAL) \ 678 switch (AnOpts.getUserMode()) { \ 679 case UMK_Shallow: \ 680 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 681 break; \ 682 case UMK_Deep: \ 683 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 684 break; \ 685 } \ 686 687 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 688 #undef ANALYZER_OPTION 689 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 690 691 // At this point, AnalyzerOptions is configured. Let's validate some options. 692 693 // FIXME: Here we try to validate the silenced checkers or packages are valid. 694 // The current approach only validates the registered checkers which does not 695 // contain the runtime enabled checkers and optimally we would validate both. 696 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 697 std::vector<StringRef> Checkers = 698 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 699 std::vector<StringRef> Packages = 700 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 701 702 SmallVector<StringRef, 16> CheckersAndPackages; 703 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 704 705 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 706 if (Diags) { 707 bool IsChecker = CheckerOrPackage.contains('.'); 708 bool IsValidName = 709 IsChecker 710 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 711 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 712 713 if (!IsValidName) 714 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 715 << CheckerOrPackage; 716 } 717 718 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 719 } 720 } 721 722 if (!Diags) 723 return; 724 725 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 726 Diags->Report(diag::err_analyzer_config_invalid_input) 727 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 728 729 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 730 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 731 << "a filename"; 732 733 if (!AnOpts.ModelPath.empty() && 734 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 735 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 736 << "a filename"; 737 } 738 739 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 740 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 741 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 742 } 743 744 /// Create a new Regex instance out of the string value in \p RpassArg. 745 /// It returns a pointer to the newly generated Regex instance. 746 static std::shared_ptr<llvm::Regex> 747 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 748 Arg *RpassArg) { 749 StringRef Val = RpassArg->getValue(); 750 std::string RegexError; 751 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 752 if (!Pattern->isValid(RegexError)) { 753 Diags.Report(diag::err_drv_optimization_remark_pattern) 754 << RegexError << RpassArg->getAsString(Args); 755 Pattern.reset(); 756 } 757 return Pattern; 758 } 759 760 static bool parseDiagnosticLevelMask(StringRef FlagName, 761 const std::vector<std::string> &Levels, 762 DiagnosticsEngine *Diags, 763 DiagnosticLevelMask &M) { 764 bool Success = true; 765 for (const auto &Level : Levels) { 766 DiagnosticLevelMask const PM = 767 llvm::StringSwitch<DiagnosticLevelMask>(Level) 768 .Case("note", DiagnosticLevelMask::Note) 769 .Case("remark", DiagnosticLevelMask::Remark) 770 .Case("warning", DiagnosticLevelMask::Warning) 771 .Case("error", DiagnosticLevelMask::Error) 772 .Default(DiagnosticLevelMask::None); 773 if (PM == DiagnosticLevelMask::None) { 774 Success = false; 775 if (Diags) 776 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 777 } 778 M = M | PM; 779 } 780 return Success; 781 } 782 783 static void parseSanitizerKinds(StringRef FlagName, 784 const std::vector<std::string> &Sanitizers, 785 DiagnosticsEngine &Diags, SanitizerSet &S) { 786 for (const auto &Sanitizer : Sanitizers) { 787 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 788 if (K == SanitizerMask()) 789 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 790 else 791 S.set(K, true); 792 } 793 } 794 795 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 796 ArgList &Args, DiagnosticsEngine &D, 797 XRayInstrSet &S) { 798 llvm::SmallVector<StringRef, 2> BundleParts; 799 llvm::SplitString(Bundle, BundleParts, ","); 800 for (const auto &B : BundleParts) { 801 auto Mask = parseXRayInstrValue(B); 802 if (Mask == XRayInstrKind::None) 803 if (B != "none") 804 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 805 else 806 S.Mask = Mask; 807 else if (Mask == XRayInstrKind::All) 808 S.Mask = Mask; 809 else 810 S.set(Mask, true); 811 } 812 } 813 814 // Set the profile kind for fprofile-instrument. 815 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 816 DiagnosticsEngine &Diags) { 817 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 818 if (A == nullptr) 819 return; 820 StringRef S = A->getValue(); 821 unsigned I = llvm::StringSwitch<unsigned>(S) 822 .Case("none", CodeGenOptions::ProfileNone) 823 .Case("clang", CodeGenOptions::ProfileClangInstr) 824 .Case("llvm", CodeGenOptions::ProfileIRInstr) 825 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 826 .Default(~0U); 827 if (I == ~0U) { 828 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 829 << S; 830 return; 831 } 832 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 833 Opts.setProfileInstr(Instrumentor); 834 } 835 836 // Set the profile kind using fprofile-instrument-use-path. 837 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 838 const Twine &ProfileName) { 839 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 840 // In error, return silently and let Clang PGOUse report the error message. 841 if (auto E = ReaderOrErr.takeError()) { 842 llvm::consumeError(std::move(E)); 843 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 844 return; 845 } 846 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 847 std::move(ReaderOrErr.get()); 848 if (PGOReader->isIRLevelProfile()) { 849 if (PGOReader->hasCSIRLevelProfile()) 850 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 851 else 852 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 853 } else 854 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 855 } 856 857 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 858 DiagnosticsEngine &Diags, 859 const TargetOptions &TargetOpts, 860 const FrontendOptions &FrontendOpts) { 861 bool Success = true; 862 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 863 864 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 865 // TODO: This could be done in Driver 866 unsigned MaxOptLevel = 3; 867 if (OptimizationLevel > MaxOptLevel) { 868 // If the optimization level is not supported, fall back on the default 869 // optimization 870 Diags.Report(diag::warn_drv_optimization_value) 871 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 872 OptimizationLevel = MaxOptLevel; 873 } 874 Opts.OptimizationLevel = OptimizationLevel; 875 876 // At O0 we want to fully disable inlining outside of cases marked with 877 // 'alwaysinline' that are required for correctness. 878 Opts.setInlining((Opts.OptimizationLevel == 0) 879 ? CodeGenOptions::OnlyAlwaysInlining 880 : CodeGenOptions::NormalInlining); 881 // Explicit inlining flags can disable some or all inlining even at 882 // optimization levels above zero. 883 if (Arg *InlineArg = Args.getLastArg( 884 options::OPT_finline_functions, options::OPT_finline_hint_functions, 885 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 886 if (Opts.OptimizationLevel > 0) { 887 const Option &InlineOpt = InlineArg->getOption(); 888 if (InlineOpt.matches(options::OPT_finline_functions)) 889 Opts.setInlining(CodeGenOptions::NormalInlining); 890 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 891 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 892 else 893 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 894 } 895 } 896 897 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 898 StringRef Name = A->getValue(); 899 if (Name == "Accelerate") 900 Opts.setVecLib(CodeGenOptions::Accelerate); 901 else if (Name == "libmvec") 902 Opts.setVecLib(CodeGenOptions::LIBMVEC); 903 else if (Name == "MASSV") 904 Opts.setVecLib(CodeGenOptions::MASSV); 905 else if (Name == "SVML") 906 Opts.setVecLib(CodeGenOptions::SVML); 907 else if (Name == "none") 908 Opts.setVecLib(CodeGenOptions::NoLibrary); 909 else 910 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 911 } 912 913 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 914 unsigned Val = 915 llvm::StringSwitch<unsigned>(A->getValue()) 916 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 917 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 918 .Case("constructor", codegenoptions::DebugInfoConstructor) 919 .Case("limited", codegenoptions::LimitedDebugInfo) 920 .Case("standalone", codegenoptions::FullDebugInfo) 921 .Case("unused-types", codegenoptions::UnusedTypeInfo) 922 .Default(~0U); 923 if (Val == ~0U) 924 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 925 << A->getValue(); 926 else 927 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 928 } 929 // If -fuse-ctor-homing is set and limited debug info is already on, then use 930 // constructor homing. 931 if (Args.getLastArg(OPT_fuse_ctor_homing)) 932 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 933 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 934 935 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 936 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 937 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 938 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 939 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 940 .Default(~0U); 941 if (Val == ~0U) 942 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 943 << A->getValue(); 944 else 945 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 946 } 947 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 948 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 949 Opts.SplitDwarfOutput = 950 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 951 952 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 953 auto Split = StringRef(Arg).split('='); 954 Opts.DebugPrefixMap.insert( 955 {std::string(Split.first), std::string(Split.second)}); 956 } 957 958 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 959 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 960 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 961 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 962 963 llvm::Triple T(TargetOpts.Triple); 964 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 965 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 966 Opts.EmitCallSiteInfo = true; 967 968 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 969 Args.hasArg(OPT_new_struct_path_tbaa); 970 Opts.DwarfDebugFlags = 971 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 972 Opts.RecordCommandLine = 973 std::string(Args.getLastArgValue(OPT_record_command_line)); 974 Opts.OptimizeSize = getOptimizationLevelSize(Args); 975 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 976 Args.hasArg(OPT_ffreestanding)); 977 if (Opts.SimplifyLibCalls) 978 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 979 Opts.UnrollLoops = 980 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 981 (Opts.OptimizationLevel > 1)); 982 983 Opts.SampleProfileFile = 984 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 985 Opts.DebugNameTable = static_cast<unsigned>( 986 Args.hasArg(OPT_ggnu_pubnames) 987 ? llvm::DICompileUnit::DebugNameTableKind::GNU 988 : Args.hasArg(OPT_gpubnames) 989 ? llvm::DICompileUnit::DebugNameTableKind::Default 990 : llvm::DICompileUnit::DebugNameTableKind::None); 991 992 setPGOInstrumentor(Opts, Args, Diags); 993 Opts.InstrProfileOutput = 994 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 995 Opts.ProfileInstrumentUsePath = 996 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 997 if (!Opts.ProfileInstrumentUsePath.empty()) 998 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 999 Opts.ProfileRemappingFile = 1000 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 1001 if (!Opts.ProfileRemappingFile.empty() && Opts.LegacyPassManager) { 1002 Diags.Report(diag::err_drv_argument_only_allowed_with) 1003 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 1004 << "-fno-legacy-pass-manager"; 1005 } 1006 1007 Opts.CodeModel = TargetOpts.CodeModel; 1008 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 1009 1010 // Handle -mframe-pointer option. 1011 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 1012 CodeGenOptions::FramePointerKind FP; 1013 StringRef Name = A->getValue(); 1014 bool ValidFP = true; 1015 if (Name == "none") 1016 FP = CodeGenOptions::FramePointerKind::None; 1017 else if (Name == "non-leaf") 1018 FP = CodeGenOptions::FramePointerKind::NonLeaf; 1019 else if (Name == "all") 1020 FP = CodeGenOptions::FramePointerKind::All; 1021 else { 1022 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1023 Success = false; 1024 ValidFP = false; 1025 } 1026 if (ValidFP) 1027 Opts.setFramePointer(FP); 1028 } 1029 1030 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1031 Opts.TimePasses = true; 1032 1033 // -ftime-report= is only for new pass manager. 1034 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1035 if (Opts.LegacyPassManager) 1036 Diags.Report(diag::err_drv_argument_only_allowed_with) 1037 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1038 1039 StringRef Val = A->getValue(); 1040 if (Val == "per-pass") 1041 Opts.TimePassesPerRun = false; 1042 else if (Val == "per-pass-run") 1043 Opts.TimePassesPerRun = true; 1044 else 1045 Diags.Report(diag::err_drv_invalid_value) 1046 << A->getAsString(Args) << A->getValue(); 1047 } 1048 } 1049 1050 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 1051 Opts.LimitFloatPrecision = 1052 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 1053 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 1054 1055 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 1056 Opts.SmallDataLimit = 1057 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 1058 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 1059 1060 Opts.BBSections = 1061 std::string(Args.getLastArgValue(OPT_fbasic_block_sections_EQ, "none")); 1062 1063 // Basic Block Sections implies Function Sections. 1064 Opts.FunctionSections = 1065 Args.hasArg(OPT_ffunction_sections) || 1066 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 1067 1068 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1069 Opts.PrepareForThinLTO = false; 1070 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1071 StringRef S = A->getValue(); 1072 if (S == "thin") 1073 Opts.PrepareForThinLTO = true; 1074 else if (S != "full") 1075 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1076 } 1077 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1078 if (IK.getLanguage() != Language::LLVM_IR) 1079 Diags.Report(diag::err_drv_argument_only_allowed_with) 1080 << A->getAsString(Args) << "-x ir"; 1081 Opts.ThinLTOIndexFile = 1082 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1083 } 1084 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1085 Opts.SaveTempsFilePrefix = 1086 llvm::StringSwitch<std::string>(A->getValue()) 1087 .Case("obj", FrontendOpts.OutputFile) 1088 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 1089 1090 Opts.ThinLinkBitcodeFile = 1091 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 1092 1093 // The memory profile runtime appends the pid to make this name more unique. 1094 const char *MemProfileBasename = "memprof.profraw"; 1095 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1096 SmallString<128> Path( 1097 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1098 llvm::sys::path::append(Path, MemProfileBasename); 1099 Opts.MemoryProfileOutput = std::string(Path); 1100 } else if (Args.hasArg(OPT_fmemory_profile)) 1101 Opts.MemoryProfileOutput = MemProfileBasename; 1102 1103 Opts.PreferVectorWidth = 1104 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1105 1106 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1107 1108 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1109 Opts.CoverageDataFile = 1110 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1111 Opts.CoverageNotesFile = 1112 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1113 Opts.ProfileFilterFiles = 1114 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1115 Opts.ProfileExcludeFiles = 1116 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1117 if (Args.hasArg(OPT_coverage_version_EQ)) { 1118 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1119 if (CoverageVersion.size() != 4) { 1120 Diags.Report(diag::err_drv_invalid_value) 1121 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1122 << CoverageVersion; 1123 } else { 1124 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1125 } 1126 } 1127 } 1128 // Handle -fembed-bitcode option. 1129 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1130 StringRef Name = A->getValue(); 1131 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1132 .Case("off", CodeGenOptions::Embed_Off) 1133 .Case("all", CodeGenOptions::Embed_All) 1134 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1135 .Case("marker", CodeGenOptions::Embed_Marker) 1136 .Default(~0U); 1137 if (Model == ~0U) { 1138 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1139 Success = false; 1140 } else 1141 Opts.setEmbedBitcode( 1142 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1143 } 1144 // FIXME: For backend options that are not yet recorded as function 1145 // attributes in the IR, keep track of them so we can embed them in a 1146 // separate data section and use them when building the bitcode. 1147 for (const auto &A : Args) { 1148 // Do not encode output and input. 1149 if (A->getOption().getID() == options::OPT_o || 1150 A->getOption().getID() == options::OPT_INPUT || 1151 A->getOption().getID() == options::OPT_x || 1152 A->getOption().getID() == options::OPT_fembed_bitcode || 1153 A->getOption().matches(options::OPT_W_Group)) 1154 continue; 1155 ArgStringList ASL; 1156 A->render(Args, ASL); 1157 for (const auto &arg : ASL) { 1158 StringRef ArgStr(arg); 1159 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1160 // using \00 to separate each commandline options. 1161 Opts.CmdArgs.push_back('\0'); 1162 } 1163 } 1164 1165 Opts.XRayInstructionThreshold = 1166 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1167 Opts.XRayTotalFunctionGroups = 1168 getLastArgIntValue(Args, OPT_fxray_function_groups, 1, Diags); 1169 Opts.XRaySelectedFunctionGroup = 1170 getLastArgIntValue(Args, OPT_fxray_selected_function_group, 0, Diags); 1171 1172 auto XRayInstrBundles = 1173 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1174 if (XRayInstrBundles.empty()) 1175 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1176 else 1177 for (const auto &A : XRayInstrBundles) 1178 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1179 Diags, Opts.XRayInstrumentationBundle); 1180 1181 Opts.PatchableFunctionEntryCount = 1182 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1183 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1184 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1185 1186 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1187 StringRef Name = A->getValue(); 1188 if (Name == "full") { 1189 Opts.CFProtectionReturn = 1; 1190 Opts.CFProtectionBranch = 1; 1191 } else if (Name == "return") 1192 Opts.CFProtectionReturn = 1; 1193 else if (Name == "branch") 1194 Opts.CFProtectionBranch = 1; 1195 else if (Name != "none") { 1196 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1197 Success = false; 1198 } 1199 } 1200 1201 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections_EQ)) { 1202 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1203 .Case("none", llvm::DebugCompressionType::None) 1204 .Case("zlib", llvm::DebugCompressionType::Z) 1205 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1206 .Default(llvm::DebugCompressionType::None); 1207 Opts.setCompressDebugSections(DCT); 1208 } 1209 1210 Opts.DebugCompilationDir = 1211 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1212 for (auto *A : 1213 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1214 CodeGenOptions::BitcodeFileToLink F; 1215 F.Filename = A->getValue(); 1216 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1217 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1218 // When linking CUDA bitcode, propagate function attributes so that 1219 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1220 F.PropagateAttrs = true; 1221 F.Internalize = true; 1222 } 1223 Opts.LinkBitcodeFiles.push_back(F); 1224 } 1225 Opts.SanitizeCoverageType = 1226 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1227 Opts.SanitizeCoverageAllowlistFiles = 1228 Args.getAllArgValues(OPT_fsanitize_coverage_allowlist); 1229 Opts.SanitizeCoverageBlocklistFiles = 1230 Args.getAllArgValues(OPT_fsanitize_coverage_blocklist); 1231 Opts.SanitizeMemoryTrackOrigins = 1232 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1233 Opts.SSPBufferSize = 1234 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1235 1236 Opts.StackProtectorGuard = 1237 std::string(Args.getLastArgValue(OPT_mstack_protector_guard_EQ)); 1238 1239 if (Arg *A = Args.getLastArg(OPT_mstack_protector_guard_offset_EQ)) { 1240 StringRef Val = A->getValue(); 1241 unsigned Offset = Opts.StackProtectorGuardOffset; 1242 Val.getAsInteger(10, Offset); 1243 Opts.StackProtectorGuardOffset = Offset; 1244 } 1245 1246 Opts.StackProtectorGuardReg = 1247 std::string(Args.getLastArgValue(OPT_mstack_protector_guard_reg_EQ, 1248 "none")); 1249 1250 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1251 StringRef Val = A->getValue(); 1252 unsigned StackAlignment = Opts.StackAlignment; 1253 Val.getAsInteger(10, StackAlignment); 1254 Opts.StackAlignment = StackAlignment; 1255 } 1256 1257 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1258 StringRef Val = A->getValue(); 1259 unsigned StackProbeSize = Opts.StackProbeSize; 1260 Val.getAsInteger(0, StackProbeSize); 1261 Opts.StackProbeSize = StackProbeSize; 1262 } 1263 1264 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1265 StringRef Name = A->getValue(); 1266 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1267 .Case("legacy", CodeGenOptions::Legacy) 1268 .Case("non-legacy", CodeGenOptions::NonLegacy) 1269 .Case("mixed", CodeGenOptions::Mixed) 1270 .Default(~0U); 1271 if (Method == ~0U) { 1272 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1273 Success = false; 1274 } else { 1275 Opts.setObjCDispatchMethod( 1276 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1277 } 1278 } 1279 1280 1281 if (Args.getLastArg(OPT_femulated_tls) || 1282 Args.getLastArg(OPT_fno_emulated_tls)) { 1283 Opts.ExplicitEmulatedTLS = true; 1284 Opts.EmulatedTLS = 1285 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1286 } 1287 1288 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1289 StringRef Name = A->getValue(); 1290 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1291 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1292 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1293 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1294 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1295 .Default(~0U); 1296 if (Model == ~0U) { 1297 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1298 Success = false; 1299 } else { 1300 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1301 } 1302 } 1303 1304 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1305 1306 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1307 StringRef Val = A->getValue(); 1308 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1309 if (!Opts.FPDenormalMode.isValid()) 1310 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1311 } 1312 1313 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1314 StringRef Val = A->getValue(); 1315 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1316 if (!Opts.FP32DenormalMode.isValid()) 1317 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1318 } 1319 1320 // X86_32 has -fppc-struct-return and -freg-struct-return. 1321 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1322 if (Arg *A = 1323 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1324 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1325 // TODO: We might want to consider enabling these options on AIX in the 1326 // future. 1327 if (T.isOSAIX()) 1328 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1329 << A->getSpelling() << T.str(); 1330 1331 const Option &O = A->getOption(); 1332 if (O.matches(OPT_fpcc_struct_return) || 1333 O.matches(OPT_maix_struct_return)) { 1334 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1335 } else { 1336 assert(O.matches(OPT_freg_struct_return) || 1337 O.matches(OPT_msvr4_struct_return)); 1338 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1339 } 1340 } 1341 1342 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1343 !Args.hasArg(OPT_fvisibility))) 1344 Opts.IgnoreXCOFFVisibility = 1; 1345 1346 if (Arg *A = 1347 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1348 if (!T.isOSAIX()) 1349 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1350 << A->getSpelling() << T.str(); 1351 1352 const Option &O = A->getOption(); 1353 if (O.matches(OPT_mabi_EQ_vec_default)) 1354 Diags.Report(diag::err_aix_default_altivec_abi) 1355 << A->getSpelling() << T.str(); 1356 else { 1357 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1358 Opts.EnableAIXExtendedAltivecABI = 1; 1359 } 1360 } 1361 1362 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1363 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1364 bool NeedLocTracking = false; 1365 1366 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1367 if (!Opts.OptRecordFile.empty()) 1368 NeedLocTracking = true; 1369 1370 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1371 Opts.OptRecordPasses = A->getValue(); 1372 NeedLocTracking = true; 1373 } 1374 1375 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1376 Opts.OptRecordFormat = A->getValue(); 1377 NeedLocTracking = true; 1378 } 1379 1380 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1381 Opts.OptimizationRemarkPattern = 1382 GenerateOptimizationRemarkRegex(Diags, Args, A); 1383 NeedLocTracking = true; 1384 } 1385 1386 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1387 Opts.OptimizationRemarkMissedPattern = 1388 GenerateOptimizationRemarkRegex(Diags, Args, A); 1389 NeedLocTracking = true; 1390 } 1391 1392 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1393 Opts.OptimizationRemarkAnalysisPattern = 1394 GenerateOptimizationRemarkRegex(Diags, Args, A); 1395 NeedLocTracking = true; 1396 } 1397 1398 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1399 bool UsingProfile = UsingSampleProfile || 1400 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1401 1402 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1403 // An IR file will contain PGO as metadata 1404 IK.getLanguage() != Language::LLVM_IR) 1405 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1406 << "-fdiagnostics-show-hotness"; 1407 1408 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1409 if (auto *arg = 1410 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1411 auto ResultOrErr = 1412 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1413 1414 if (!ResultOrErr) { 1415 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1416 << "-fdiagnostics-hotness-threshold="; 1417 } else { 1418 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1419 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1420 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1421 !UsingProfile) 1422 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1423 << "-fdiagnostics-hotness-threshold="; 1424 } 1425 } 1426 1427 // If the user requested to use a sample profile for PGO, then the 1428 // backend will need to track source location information so the profile 1429 // can be incorporated into the IR. 1430 if (UsingSampleProfile) 1431 NeedLocTracking = true; 1432 1433 // If the user requested a flag that requires source locations available in 1434 // the backend, make sure that the backend tracks source location information. 1435 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1436 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1437 1438 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1439 1440 // Parse -fsanitize-recover= arguments. 1441 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1442 parseSanitizerKinds("-fsanitize-recover=", 1443 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1444 Opts.SanitizeRecover); 1445 parseSanitizerKinds("-fsanitize-trap=", 1446 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1447 Opts.SanitizeTrap); 1448 1449 Opts.CudaGpuBinaryFileName = 1450 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1451 1452 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1453 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1454 1455 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1456 1457 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1458 1459 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1460 1461 Opts.SymbolPartition = 1462 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1463 1464 return Success; 1465 } 1466 1467 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1468 ArgList &Args) { 1469 Opts.Targets = Args.getAllArgValues(OPT_MT); 1470 if (Args.hasArg(OPT_show_includes)) { 1471 // Writing both /showIncludes and preprocessor output to stdout 1472 // would produce interleaved output, so use stderr for /showIncludes. 1473 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1474 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1475 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1476 else 1477 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1478 } else { 1479 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1480 } 1481 // Add sanitizer blacklists as extra dependencies. 1482 // They won't be discovered by the regular preprocessor, so 1483 // we let make / ninja to know about this implicit dependency. 1484 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1485 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1486 StringRef Val = A->getValue(); 1487 if (Val.find('=') == StringRef::npos) 1488 Opts.ExtraDeps.push_back(std::string(Val)); 1489 } 1490 if (Opts.IncludeSystemHeaders) { 1491 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1492 StringRef Val = A->getValue(); 1493 if (Val.find('=') == StringRef::npos) 1494 Opts.ExtraDeps.push_back(std::string(Val)); 1495 } 1496 } 1497 } 1498 1499 // Propagate the extra dependencies. 1500 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1501 Opts.ExtraDeps.push_back(A->getValue()); 1502 } 1503 1504 // Only the -fmodule-file=<file> form. 1505 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1506 StringRef Val = A->getValue(); 1507 if (Val.find('=') == StringRef::npos) 1508 Opts.ExtraDeps.push_back(std::string(Val)); 1509 } 1510 } 1511 1512 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1513 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1514 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1515 // Support both clang's -f[no-]color-diagnostics and gcc's 1516 // -f[no-]diagnostics-colors[=never|always|auto]. 1517 enum { 1518 Colors_On, 1519 Colors_Off, 1520 Colors_Auto 1521 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1522 for (auto *A : Args) { 1523 const Option &O = A->getOption(); 1524 if (O.matches(options::OPT_fcolor_diagnostics) || 1525 O.matches(options::OPT_fdiagnostics_color)) { 1526 ShowColors = Colors_On; 1527 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1528 O.matches(options::OPT_fno_diagnostics_color)) { 1529 ShowColors = Colors_Off; 1530 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1531 StringRef Value(A->getValue()); 1532 if (Value == "always") 1533 ShowColors = Colors_On; 1534 else if (Value == "never") 1535 ShowColors = Colors_Off; 1536 else if (Value == "auto") 1537 ShowColors = Colors_Auto; 1538 } 1539 } 1540 return ShowColors == Colors_On || 1541 (ShowColors == Colors_Auto && 1542 llvm::sys::Process::StandardErrHasColors()); 1543 } 1544 1545 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1546 DiagnosticsEngine *Diags) { 1547 bool Success = true; 1548 for (const auto &Prefix : VerifyPrefixes) { 1549 // Every prefix must start with a letter and contain only alphanumeric 1550 // characters, hyphens, and underscores. 1551 auto BadChar = llvm::find_if(Prefix, [](char C) { 1552 return !isAlphanumeric(C) && C != '-' && C != '_'; 1553 }); 1554 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1555 Success = false; 1556 if (Diags) { 1557 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1558 Diags->Report(diag::note_drv_verify_prefix_spelling); 1559 } 1560 } 1561 } 1562 return Success; 1563 } 1564 1565 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1566 DiagnosticsEngine *Diags, 1567 bool DefaultDiagColor) { 1568 bool Success = true; 1569 1570 Opts.DiagnosticLogFile = 1571 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1572 if (Arg *A = 1573 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1574 Opts.DiagnosticSerializationFile = A->getValue(); 1575 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1576 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1577 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1578 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1579 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1580 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1581 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1582 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1583 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1584 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1585 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1586 1587 // Default behavior is to not to show note include stacks. 1588 Opts.ShowNoteIncludeStack = false; 1589 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1590 OPT_fno_diagnostics_show_note_include_stack)) 1591 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1592 Opts.ShowNoteIncludeStack = true; 1593 1594 StringRef ShowOverloads = 1595 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1596 if (ShowOverloads == "best") 1597 Opts.setShowOverloads(Ovl_Best); 1598 else if (ShowOverloads == "all") 1599 Opts.setShowOverloads(Ovl_All); 1600 else { 1601 Success = false; 1602 if (Diags) 1603 Diags->Report(diag::err_drv_invalid_value) 1604 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1605 << ShowOverloads; 1606 } 1607 1608 StringRef ShowCategory = 1609 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1610 if (ShowCategory == "none") 1611 Opts.ShowCategories = 0; 1612 else if (ShowCategory == "id") 1613 Opts.ShowCategories = 1; 1614 else if (ShowCategory == "name") 1615 Opts.ShowCategories = 2; 1616 else { 1617 Success = false; 1618 if (Diags) 1619 Diags->Report(diag::err_drv_invalid_value) 1620 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1621 << ShowCategory; 1622 } 1623 1624 StringRef Format = 1625 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1626 if (Format == "clang") 1627 Opts.setFormat(DiagnosticOptions::Clang); 1628 else if (Format == "msvc") 1629 Opts.setFormat(DiagnosticOptions::MSVC); 1630 else if (Format == "msvc-fallback") { 1631 Opts.setFormat(DiagnosticOptions::MSVC); 1632 Opts.CLFallbackMode = true; 1633 } else if (Format == "vi") 1634 Opts.setFormat(DiagnosticOptions::Vi); 1635 else { 1636 Success = false; 1637 if (Diags) 1638 Diags->Report(diag::err_drv_invalid_value) 1639 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1640 << Format; 1641 } 1642 1643 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1644 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1645 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1646 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1647 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1648 if (Args.hasArg(OPT_verify)) 1649 Opts.VerifyPrefixes.push_back("expected"); 1650 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1651 // then sort it to prepare for fast lookup using std::binary_search. 1652 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1653 Opts.VerifyDiagnostics = false; 1654 Success = false; 1655 } 1656 else 1657 llvm::sort(Opts.VerifyPrefixes); 1658 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1659 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1660 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1661 Diags, DiagMask); 1662 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1663 DiagMask = DiagnosticLevelMask::All; 1664 Opts.setVerifyIgnoreUnexpected(DiagMask); 1665 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1666 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1667 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1668 Opts.MacroBacktraceLimit = 1669 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1670 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1671 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1672 Args, OPT_ftemplate_backtrace_limit, 1673 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1674 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1675 Args, OPT_fconstexpr_backtrace_limit, 1676 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1677 Opts.SpellCheckingLimit = getLastArgIntValue( 1678 Args, OPT_fspell_checking_limit, 1679 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1680 Opts.SnippetLineLimit = getLastArgIntValue( 1681 Args, OPT_fcaret_diagnostics_max_lines, 1682 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1683 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1684 DiagnosticOptions::DefaultTabStop, Diags); 1685 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1686 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1687 if (Diags) 1688 Diags->Report(diag::warn_ignoring_ftabstop_value) 1689 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1690 } 1691 Opts.MessageLength = 1692 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1693 1694 Opts.UndefPrefixes = Args.getAllArgValues(OPT_Wundef_prefix_EQ); 1695 1696 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1697 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1698 1699 return Success; 1700 } 1701 1702 /// Parse the argument to the -ftest-module-file-extension 1703 /// command-line argument. 1704 /// 1705 /// \returns true on error, false on success. 1706 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1707 std::string &BlockName, 1708 unsigned &MajorVersion, 1709 unsigned &MinorVersion, 1710 bool &Hashed, 1711 std::string &UserInfo) { 1712 SmallVector<StringRef, 5> Args; 1713 Arg.split(Args, ':', 5); 1714 if (Args.size() < 5) 1715 return true; 1716 1717 BlockName = std::string(Args[0]); 1718 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1719 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1720 if (Args[3].getAsInteger(2, Hashed)) return true; 1721 if (Args.size() > 4) 1722 UserInfo = std::string(Args[4]); 1723 return false; 1724 } 1725 1726 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1727 DiagnosticsEngine &Diags, 1728 bool &IsHeaderFile) { 1729 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1730 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1731 switch (A->getOption().getID()) { 1732 default: 1733 llvm_unreachable("Invalid option in group!"); 1734 case OPT_ast_list: 1735 Opts.ProgramAction = frontend::ASTDeclList; break; 1736 case OPT_ast_dump_all_EQ: 1737 case OPT_ast_dump_EQ: { 1738 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1739 .CaseLower("default", ADOF_Default) 1740 .CaseLower("json", ADOF_JSON) 1741 .Default(std::numeric_limits<unsigned>::max()); 1742 1743 if (Val != std::numeric_limits<unsigned>::max()) 1744 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1745 else { 1746 Diags.Report(diag::err_drv_invalid_value) 1747 << A->getAsString(Args) << A->getValue(); 1748 Opts.ASTDumpFormat = ADOF_Default; 1749 } 1750 LLVM_FALLTHROUGH; 1751 } 1752 case OPT_ast_dump: 1753 case OPT_ast_dump_all: 1754 case OPT_ast_dump_lookups: 1755 case OPT_ast_dump_decl_types: 1756 Opts.ProgramAction = frontend::ASTDump; break; 1757 case OPT_ast_print: 1758 Opts.ProgramAction = frontend::ASTPrint; break; 1759 case OPT_ast_view: 1760 Opts.ProgramAction = frontend::ASTView; break; 1761 case OPT_compiler_options_dump: 1762 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1763 case OPT_dump_raw_tokens: 1764 Opts.ProgramAction = frontend::DumpRawTokens; break; 1765 case OPT_dump_tokens: 1766 Opts.ProgramAction = frontend::DumpTokens; break; 1767 case OPT_S: 1768 Opts.ProgramAction = frontend::EmitAssembly; break; 1769 case OPT_emit_llvm_bc: 1770 Opts.ProgramAction = frontend::EmitBC; break; 1771 case OPT_emit_html: 1772 Opts.ProgramAction = frontend::EmitHTML; break; 1773 case OPT_emit_llvm: 1774 Opts.ProgramAction = frontend::EmitLLVM; break; 1775 case OPT_emit_llvm_only: 1776 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1777 case OPT_emit_codegen_only: 1778 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1779 case OPT_emit_obj: 1780 Opts.ProgramAction = frontend::EmitObj; break; 1781 case OPT_fixit_EQ: 1782 Opts.FixItSuffix = A->getValue(); 1783 LLVM_FALLTHROUGH; 1784 case OPT_fixit: 1785 Opts.ProgramAction = frontend::FixIt; break; 1786 case OPT_emit_module: 1787 Opts.ProgramAction = frontend::GenerateModule; break; 1788 case OPT_emit_module_interface: 1789 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1790 case OPT_emit_header_module: 1791 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1792 case OPT_emit_pch: 1793 Opts.ProgramAction = frontend::GeneratePCH; break; 1794 case OPT_emit_interface_stubs: { 1795 StringRef ArgStr = 1796 Args.hasArg(OPT_interface_stub_version_EQ) 1797 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1798 : "experimental-ifs-v2"; 1799 if (ArgStr == "experimental-yaml-elf-v1" || 1800 ArgStr == "experimental-ifs-v1" || 1801 ArgStr == "experimental-tapi-elf-v1") { 1802 std::string ErrorMessage = 1803 "Invalid interface stub format: " + ArgStr.str() + 1804 " is deprecated."; 1805 Diags.Report(diag::err_drv_invalid_value) 1806 << "Must specify a valid interface stub format type, ie: " 1807 "-interface-stub-version=experimental-ifs-v2" 1808 << ErrorMessage; 1809 } else if (!ArgStr.startswith("experimental-ifs-")) { 1810 std::string ErrorMessage = 1811 "Invalid interface stub format: " + ArgStr.str() + "."; 1812 Diags.Report(diag::err_drv_invalid_value) 1813 << "Must specify a valid interface stub format type, ie: " 1814 "-interface-stub-version=experimental-ifs-v2" 1815 << ErrorMessage; 1816 } else { 1817 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1818 } 1819 break; 1820 } 1821 case OPT_init_only: 1822 Opts.ProgramAction = frontend::InitOnly; break; 1823 case OPT_fsyntax_only: 1824 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1825 case OPT_module_file_info: 1826 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1827 case OPT_verify_pch: 1828 Opts.ProgramAction = frontend::VerifyPCH; break; 1829 case OPT_print_preamble: 1830 Opts.ProgramAction = frontend::PrintPreamble; break; 1831 case OPT_E: 1832 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1833 case OPT_templight_dump: 1834 Opts.ProgramAction = frontend::TemplightDump; break; 1835 case OPT_rewrite_macros: 1836 Opts.ProgramAction = frontend::RewriteMacros; break; 1837 case OPT_rewrite_objc: 1838 Opts.ProgramAction = frontend::RewriteObjC; break; 1839 case OPT_rewrite_test: 1840 Opts.ProgramAction = frontend::RewriteTest; break; 1841 case OPT_analyze: 1842 Opts.ProgramAction = frontend::RunAnalysis; break; 1843 case OPT_migrate: 1844 Opts.ProgramAction = frontend::MigrateSource; break; 1845 case OPT_Eonly: 1846 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1847 case OPT_print_dependency_directives_minimized_source: 1848 Opts.ProgramAction = 1849 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1850 break; 1851 } 1852 } 1853 1854 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1855 Opts.Plugins.emplace_back(A->getValue(0)); 1856 Opts.ProgramAction = frontend::PluginAction; 1857 Opts.ActionName = A->getValue(); 1858 } 1859 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1860 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1861 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1862 1863 for (const std::string &Arg : 1864 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1865 std::string BlockName; 1866 unsigned MajorVersion; 1867 unsigned MinorVersion; 1868 bool Hashed; 1869 std::string UserInfo; 1870 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1871 MinorVersion, Hashed, UserInfo)) { 1872 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1873 1874 continue; 1875 } 1876 1877 // Add the testing module file extension. 1878 Opts.ModuleFileExtensions.push_back( 1879 std::make_shared<TestModuleFileExtension>( 1880 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1881 } 1882 1883 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1884 Opts.CodeCompletionAt = 1885 ParsedSourceLocation::FromString(A->getValue()); 1886 if (Opts.CodeCompletionAt.FileName.empty()) 1887 Diags.Report(diag::err_drv_invalid_value) 1888 << A->getAsString(Args) << A->getValue(); 1889 } 1890 1891 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1892 Opts.Plugins = Args.getAllArgValues(OPT_load); 1893 Opts.TimeTraceGranularity = getLastArgIntValue( 1894 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1895 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1896 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1897 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1898 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1899 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1900 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1901 // Only the -fmodule-file=<file> form. 1902 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1903 StringRef Val = A->getValue(); 1904 if (Val.find('=') == StringRef::npos) 1905 Opts.ModuleFiles.push_back(std::string(Val)); 1906 } 1907 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1908 Opts.AllowPCMWithCompilerErrors = Args.hasArg(OPT_fallow_pcm_with_errors); 1909 1910 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1911 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1912 << "-emit-module"; 1913 1914 Opts.OverrideRecordLayoutsFile = 1915 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1916 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1917 if (Args.hasArg(OPT_aux_target_cpu)) 1918 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1919 if (Args.hasArg(OPT_aux_target_feature)) 1920 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1921 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1922 1923 Opts.MTMigrateDir = 1924 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1925 Opts.ARCMTMigrateReportOut = 1926 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1927 1928 Opts.ObjCMTWhiteListPath = 1929 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 1930 1931 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1932 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1933 Diags.Report(diag::err_drv_argument_not_allowed_with) 1934 << "ARC migration" << "ObjC migration"; 1935 } 1936 1937 InputKind DashX(Language::Unknown); 1938 if (const Arg *A = Args.getLastArg(OPT_x)) { 1939 StringRef XValue = A->getValue(); 1940 1941 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1942 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1943 bool Preprocessed = XValue.consume_back("-cpp-output"); 1944 bool ModuleMap = XValue.consume_back("-module-map"); 1945 IsHeaderFile = !Preprocessed && !ModuleMap && 1946 XValue != "precompiled-header" && 1947 XValue.consume_back("-header"); 1948 1949 // Principal languages. 1950 DashX = llvm::StringSwitch<InputKind>(XValue) 1951 .Case("c", Language::C) 1952 .Case("cl", Language::OpenCL) 1953 .Case("cuda", Language::CUDA) 1954 .Case("hip", Language::HIP) 1955 .Case("c++", Language::CXX) 1956 .Case("objective-c", Language::ObjC) 1957 .Case("objective-c++", Language::ObjCXX) 1958 .Case("renderscript", Language::RenderScript) 1959 .Default(Language::Unknown); 1960 1961 // "objc[++]-cpp-output" is an acceptable synonym for 1962 // "objective-c[++]-cpp-output". 1963 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1964 DashX = llvm::StringSwitch<InputKind>(XValue) 1965 .Case("objc", Language::ObjC) 1966 .Case("objc++", Language::ObjCXX) 1967 .Default(Language::Unknown); 1968 1969 // Some special cases cannot be combined with suffixes. 1970 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1971 DashX = llvm::StringSwitch<InputKind>(XValue) 1972 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 1973 .Case("assembler-with-cpp", Language::Asm) 1974 .Cases("ast", "pcm", "precompiled-header", 1975 InputKind(Language::Unknown, InputKind::Precompiled)) 1976 .Case("ir", Language::LLVM_IR) 1977 .Default(Language::Unknown); 1978 1979 if (DashX.isUnknown()) 1980 Diags.Report(diag::err_drv_invalid_value) 1981 << A->getAsString(Args) << A->getValue(); 1982 1983 if (Preprocessed) 1984 DashX = DashX.getPreprocessed(); 1985 if (ModuleMap) 1986 DashX = DashX.withFormat(InputKind::ModuleMap); 1987 } 1988 1989 // '-' is the default input if none is given. 1990 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1991 Opts.Inputs.clear(); 1992 if (Inputs.empty()) 1993 Inputs.push_back("-"); 1994 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1995 InputKind IK = DashX; 1996 if (IK.isUnknown()) { 1997 IK = FrontendOptions::getInputKindForExtension( 1998 StringRef(Inputs[i]).rsplit('.').second); 1999 // FIXME: Warn on this? 2000 if (IK.isUnknown()) 2001 IK = Language::C; 2002 // FIXME: Remove this hack. 2003 if (i == 0) 2004 DashX = IK; 2005 } 2006 2007 bool IsSystem = false; 2008 2009 // The -emit-module action implicitly takes a module map. 2010 if (Opts.ProgramAction == frontend::GenerateModule && 2011 IK.getFormat() == InputKind::Source) { 2012 IK = IK.withFormat(InputKind::ModuleMap); 2013 IsSystem = Opts.IsSystemModule; 2014 } 2015 2016 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2017 } 2018 2019 return DashX; 2020 } 2021 2022 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2023 void *MainAddr) { 2024 std::string ClangExecutable = 2025 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2026 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2027 } 2028 2029 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2030 const std::string &WorkingDir) { 2031 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2032 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2033 2034 // Canonicalize -fmodules-cache-path before storing it. 2035 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2036 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2037 if (WorkingDir.empty()) 2038 llvm::sys::fs::make_absolute(P); 2039 else 2040 llvm::sys::fs::make_absolute(WorkingDir, P); 2041 } 2042 llvm::sys::path::remove_dots(P); 2043 Opts.ModuleCachePath = std::string(P.str()); 2044 2045 // Only the -fmodule-file=<name>=<file> form. 2046 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2047 StringRef Val = A->getValue(); 2048 if (Val.find('=') != StringRef::npos){ 2049 auto Split = Val.split('='); 2050 Opts.PrebuiltModuleFiles.insert( 2051 {std::string(Split.first), std::string(Split.second)}); 2052 } 2053 } 2054 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2055 Opts.AddPrebuiltModulePath(A->getValue()); 2056 2057 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2058 StringRef MacroDef = A->getValue(); 2059 Opts.ModulesIgnoreMacros.insert( 2060 llvm::CachedHashString(MacroDef.split('=').first)); 2061 } 2062 2063 // Add -I..., -F..., and -index-header-map options in order. 2064 bool IsIndexHeaderMap = false; 2065 bool IsSysrootSpecified = 2066 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2067 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2068 if (A->getOption().matches(OPT_index_header_map)) { 2069 // -index-header-map applies to the next -I or -F. 2070 IsIndexHeaderMap = true; 2071 continue; 2072 } 2073 2074 frontend::IncludeDirGroup Group = 2075 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2076 2077 bool IsFramework = A->getOption().matches(OPT_F); 2078 std::string Path = A->getValue(); 2079 2080 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2081 SmallString<32> Buffer; 2082 llvm::sys::path::append(Buffer, Opts.Sysroot, 2083 llvm::StringRef(A->getValue()).substr(1)); 2084 Path = std::string(Buffer.str()); 2085 } 2086 2087 Opts.AddPath(Path, Group, IsFramework, 2088 /*IgnoreSysroot*/ true); 2089 IsIndexHeaderMap = false; 2090 } 2091 2092 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2093 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2094 for (const auto *A : 2095 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2096 if (A->getOption().matches(OPT_iprefix)) 2097 Prefix = A->getValue(); 2098 else if (A->getOption().matches(OPT_iwithprefix)) 2099 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2100 else 2101 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2102 } 2103 2104 for (const auto *A : Args.filtered(OPT_idirafter)) 2105 Opts.AddPath(A->getValue(), frontend::After, false, true); 2106 for (const auto *A : Args.filtered(OPT_iquote)) 2107 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2108 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2109 Opts.AddPath(A->getValue(), frontend::System, false, 2110 !A->getOption().matches(OPT_iwithsysroot)); 2111 for (const auto *A : Args.filtered(OPT_iframework)) 2112 Opts.AddPath(A->getValue(), frontend::System, true, true); 2113 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2114 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2115 /*IgnoreSysRoot=*/false); 2116 2117 // Add the paths for the various language specific isystem flags. 2118 for (const auto *A : Args.filtered(OPT_c_isystem)) 2119 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2120 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2121 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2122 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2123 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2124 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2125 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2126 2127 // Add the internal paths from a driver that detects standard include paths. 2128 for (const auto *A : 2129 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2130 frontend::IncludeDirGroup Group = frontend::System; 2131 if (A->getOption().matches(OPT_internal_externc_isystem)) 2132 Group = frontend::ExternCSystem; 2133 Opts.AddPath(A->getValue(), Group, false, true); 2134 } 2135 2136 // Add the path prefixes which are implicitly treated as being system headers. 2137 for (const auto *A : 2138 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2139 Opts.AddSystemHeaderPrefix( 2140 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2141 2142 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2143 Opts.AddVFSOverlayFile(A->getValue()); 2144 } 2145 2146 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2147 const llvm::Triple &T, 2148 PreprocessorOptions &PPOpts, 2149 LangStandard::Kind LangStd) { 2150 // Set some properties which depend solely on the input kind; it would be nice 2151 // to move these to the language standard, and have the driver resolve the 2152 // input kind + language standard. 2153 // 2154 // FIXME: Perhaps a better model would be for a single source file to have 2155 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2156 // simultaneously active? 2157 if (IK.getLanguage() == Language::Asm) { 2158 Opts.AsmPreprocessor = 1; 2159 } else if (IK.isObjectiveC()) { 2160 Opts.ObjC = 1; 2161 } 2162 2163 if (LangStd == LangStandard::lang_unspecified) { 2164 // Based on the base language, pick one. 2165 switch (IK.getLanguage()) { 2166 case Language::Unknown: 2167 case Language::LLVM_IR: 2168 llvm_unreachable("Invalid input kind!"); 2169 case Language::OpenCL: 2170 LangStd = LangStandard::lang_opencl10; 2171 break; 2172 case Language::CUDA: 2173 LangStd = LangStandard::lang_cuda; 2174 break; 2175 case Language::Asm: 2176 case Language::C: 2177 #if defined(CLANG_DEFAULT_STD_C) 2178 LangStd = CLANG_DEFAULT_STD_C; 2179 #else 2180 // The PS4 uses C99 as the default C standard. 2181 if (T.isPS4()) 2182 LangStd = LangStandard::lang_gnu99; 2183 else 2184 LangStd = LangStandard::lang_gnu17; 2185 #endif 2186 break; 2187 case Language::ObjC: 2188 #if defined(CLANG_DEFAULT_STD_C) 2189 LangStd = CLANG_DEFAULT_STD_C; 2190 #else 2191 LangStd = LangStandard::lang_gnu11; 2192 #endif 2193 break; 2194 case Language::CXX: 2195 case Language::ObjCXX: 2196 #if defined(CLANG_DEFAULT_STD_CXX) 2197 LangStd = CLANG_DEFAULT_STD_CXX; 2198 #else 2199 LangStd = LangStandard::lang_gnucxx14; 2200 #endif 2201 break; 2202 case Language::RenderScript: 2203 LangStd = LangStandard::lang_c99; 2204 break; 2205 case Language::HIP: 2206 LangStd = LangStandard::lang_hip; 2207 break; 2208 } 2209 } 2210 2211 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2212 Opts.LineComment = Std.hasLineComments(); 2213 Opts.C99 = Std.isC99(); 2214 Opts.C11 = Std.isC11(); 2215 Opts.C17 = Std.isC17(); 2216 Opts.C2x = Std.isC2x(); 2217 Opts.CPlusPlus = Std.isCPlusPlus(); 2218 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2219 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2220 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2221 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2222 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 2223 Opts.Digraphs = Std.hasDigraphs(); 2224 Opts.GNUMode = Std.isGNUMode(); 2225 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2226 Opts.GNUCVersion = 0; 2227 Opts.HexFloats = Std.hasHexFloats(); 2228 Opts.ImplicitInt = Std.hasImplicitInt(); 2229 2230 // Set OpenCL Version. 2231 Opts.OpenCL = Std.isOpenCL(); 2232 if (LangStd == LangStandard::lang_opencl10) 2233 Opts.OpenCLVersion = 100; 2234 else if (LangStd == LangStandard::lang_opencl11) 2235 Opts.OpenCLVersion = 110; 2236 else if (LangStd == LangStandard::lang_opencl12) 2237 Opts.OpenCLVersion = 120; 2238 else if (LangStd == LangStandard::lang_opencl20) 2239 Opts.OpenCLVersion = 200; 2240 else if (LangStd == LangStandard::lang_opencl30) 2241 Opts.OpenCLVersion = 300; 2242 else if (LangStd == LangStandard::lang_openclcpp) 2243 Opts.OpenCLCPlusPlusVersion = 100; 2244 2245 // OpenCL has some additional defaults. 2246 if (Opts.OpenCL) { 2247 Opts.AltiVec = 0; 2248 Opts.ZVector = 0; 2249 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2250 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2251 Opts.NativeHalfType = 1; 2252 Opts.NativeHalfArgsAndReturns = 1; 2253 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2254 2255 // Include default header file for OpenCL. 2256 if (Opts.IncludeDefaultHeader) { 2257 if (Opts.DeclareOpenCLBuiltins) { 2258 // Only include base header file for builtin types and constants. 2259 PPOpts.Includes.push_back("opencl-c-base.h"); 2260 } else { 2261 PPOpts.Includes.push_back("opencl-c.h"); 2262 } 2263 } 2264 } 2265 2266 Opts.HIP = IK.getLanguage() == Language::HIP; 2267 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2268 if (Opts.HIP) { 2269 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 2270 // fuses multiplication/addition instructions without contract flag from 2271 // device library functions in LLVM bitcode, which causes accuracy loss in 2272 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 2273 // For device library functions in bitcode to work, 'Strict' or 'Standard' 2274 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 2275 // FP contract option is used to allow fuse across statements in frontend 2276 // whereas respecting contract flag in backend. 2277 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 2278 } else if (Opts.CUDA) { 2279 // Allow fuse across statements disregarding pragmas. 2280 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2281 } 2282 2283 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2284 if (Opts.RenderScript) { 2285 Opts.NativeHalfType = 1; 2286 Opts.NativeHalfArgsAndReturns = 1; 2287 } 2288 2289 // OpenCL and C++ both have bool, true, false keywords. 2290 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2291 2292 // OpenCL has half keyword 2293 Opts.Half = Opts.OpenCL; 2294 2295 // C++ has wchar_t keyword. 2296 Opts.WChar = Opts.CPlusPlus; 2297 2298 Opts.GNUKeywords = Opts.GNUMode; 2299 Opts.CXXOperatorNames = Opts.CPlusPlus; 2300 2301 Opts.AlignedAllocation = Opts.CPlusPlus17; 2302 2303 Opts.DollarIdents = !Opts.AsmPreprocessor; 2304 2305 // Enable [[]] attributes in C++11 and C2x by default. 2306 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2307 } 2308 2309 /// Attempt to parse a visibility value out of the given argument. 2310 static Visibility parseVisibility(Arg *arg, ArgList &args, 2311 DiagnosticsEngine &diags) { 2312 StringRef value = arg->getValue(); 2313 if (value == "default") { 2314 return DefaultVisibility; 2315 } else if (value == "hidden" || value == "internal") { 2316 return HiddenVisibility; 2317 } else if (value == "protected") { 2318 // FIXME: diagnose if target does not support protected visibility 2319 return ProtectedVisibility; 2320 } 2321 2322 diags.Report(diag::err_drv_invalid_value) 2323 << arg->getAsString(args) << value; 2324 return DefaultVisibility; 2325 } 2326 2327 /// Check if input file kind and language standard are compatible. 2328 static bool IsInputCompatibleWithStandard(InputKind IK, 2329 const LangStandard &S) { 2330 switch (IK.getLanguage()) { 2331 case Language::Unknown: 2332 case Language::LLVM_IR: 2333 llvm_unreachable("should not parse language flags for this input"); 2334 2335 case Language::C: 2336 case Language::ObjC: 2337 case Language::RenderScript: 2338 return S.getLanguage() == Language::C; 2339 2340 case Language::OpenCL: 2341 return S.getLanguage() == Language::OpenCL; 2342 2343 case Language::CXX: 2344 case Language::ObjCXX: 2345 return S.getLanguage() == Language::CXX; 2346 2347 case Language::CUDA: 2348 // FIXME: What -std= values should be permitted for CUDA compilations? 2349 return S.getLanguage() == Language::CUDA || 2350 S.getLanguage() == Language::CXX; 2351 2352 case Language::HIP: 2353 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2354 2355 case Language::Asm: 2356 // Accept (and ignore) all -std= values. 2357 // FIXME: The -std= value is not ignored; it affects the tokenization 2358 // and preprocessing rules if we're preprocessing this asm input. 2359 return true; 2360 } 2361 2362 llvm_unreachable("unexpected input language"); 2363 } 2364 2365 /// Get language name for given input kind. 2366 static const StringRef GetInputKindName(InputKind IK) { 2367 switch (IK.getLanguage()) { 2368 case Language::C: 2369 return "C"; 2370 case Language::ObjC: 2371 return "Objective-C"; 2372 case Language::CXX: 2373 return "C++"; 2374 case Language::ObjCXX: 2375 return "Objective-C++"; 2376 case Language::OpenCL: 2377 return "OpenCL"; 2378 case Language::CUDA: 2379 return "CUDA"; 2380 case Language::RenderScript: 2381 return "RenderScript"; 2382 case Language::HIP: 2383 return "HIP"; 2384 2385 case Language::Asm: 2386 return "Asm"; 2387 case Language::LLVM_IR: 2388 return "LLVM IR"; 2389 2390 case Language::Unknown: 2391 break; 2392 } 2393 llvm_unreachable("unknown input language"); 2394 } 2395 2396 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2397 const TargetOptions &TargetOpts, 2398 PreprocessorOptions &PPOpts, 2399 DiagnosticsEngine &Diags) { 2400 // FIXME: Cleanup per-file based stuff. 2401 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2402 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2403 LangStd = LangStandard::getLangKind(A->getValue()); 2404 if (LangStd == LangStandard::lang_unspecified) { 2405 Diags.Report(diag::err_drv_invalid_value) 2406 << A->getAsString(Args) << A->getValue(); 2407 // Report supported standards with short description. 2408 for (unsigned KindValue = 0; 2409 KindValue != LangStandard::lang_unspecified; 2410 ++KindValue) { 2411 const LangStandard &Std = LangStandard::getLangStandardForKind( 2412 static_cast<LangStandard::Kind>(KindValue)); 2413 if (IsInputCompatibleWithStandard(IK, Std)) { 2414 auto Diag = Diags.Report(diag::note_drv_use_standard); 2415 Diag << Std.getName() << Std.getDescription(); 2416 unsigned NumAliases = 0; 2417 #define LANGSTANDARD(id, name, lang, desc, features) 2418 #define LANGSTANDARD_ALIAS(id, alias) \ 2419 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2420 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2421 #include "clang/Basic/LangStandards.def" 2422 Diag << NumAliases; 2423 #define LANGSTANDARD(id, name, lang, desc, features) 2424 #define LANGSTANDARD_ALIAS(id, alias) \ 2425 if (KindValue == LangStandard::lang_##id) Diag << alias; 2426 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2427 #include "clang/Basic/LangStandards.def" 2428 } 2429 } 2430 } else { 2431 // Valid standard, check to make sure language and standard are 2432 // compatible. 2433 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2434 if (!IsInputCompatibleWithStandard(IK, Std)) { 2435 Diags.Report(diag::err_drv_argument_not_allowed_with) 2436 << A->getAsString(Args) << GetInputKindName(IK); 2437 } 2438 } 2439 } 2440 2441 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2442 StringRef Name = A->getValue(); 2443 if (Name == "full" || Name == "branch") { 2444 Opts.CFProtectionBranch = 1; 2445 } 2446 } 2447 // -cl-std only applies for OpenCL language standards. 2448 // Override the -std option in this case. 2449 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2450 LangStandard::Kind OpenCLLangStd 2451 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2452 .Cases("cl", "CL", LangStandard::lang_opencl10) 2453 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 2454 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2455 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2456 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2457 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 2458 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2459 .Default(LangStandard::lang_unspecified); 2460 2461 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2462 Diags.Report(diag::err_drv_invalid_value) 2463 << A->getAsString(Args) << A->getValue(); 2464 } 2465 else 2466 LangStd = OpenCLLangStd; 2467 } 2468 2469 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2470 if (Opts.SYCL) { 2471 // -sycl-std applies to any SYCL source, not only those containing kernels, 2472 // but also those using the SYCL API 2473 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2474 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2475 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2476 .Default(0U); 2477 2478 if (Opts.SYCLVersion == 0U) { 2479 // User has passed an invalid value to the flag, this is an error 2480 Diags.Report(diag::err_drv_invalid_value) 2481 << A->getAsString(Args) << A->getValue(); 2482 } 2483 } 2484 } 2485 2486 llvm::Triple T(TargetOpts.Triple); 2487 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2488 2489 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2490 // This option should be deprecated for CL > 1.0 because 2491 // this option was added for compatibility with OpenCL 1.0. 2492 if (Args.getLastArg(OPT_cl_strict_aliasing) 2493 && Opts.OpenCLVersion > 100) { 2494 Diags.Report(diag::warn_option_invalid_ocl_version) 2495 << Opts.getOpenCLVersionTuple().getAsString() 2496 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2497 } 2498 2499 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2500 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2501 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2502 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2503 // name, as it doesn't seem a useful distinction. 2504 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2505 Opts.GNUKeywords); 2506 2507 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2508 2509 if (Args.hasArg(OPT_fno_operator_names)) 2510 Opts.CXXOperatorNames = 0; 2511 2512 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2513 Opts.CUDADeviceApproxTranscendentals = 1; 2514 2515 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2516 if (Opts.HIP) 2517 Opts.GPUAllowDeviceInit = 1; 2518 else 2519 Diags.Report(diag::warn_ignored_hip_only_option) 2520 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2521 } 2522 if (Opts.HIP) 2523 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2524 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2525 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2526 Diags.Report(diag::warn_ignored_hip_only_option) 2527 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2528 2529 if (Opts.ObjC) { 2530 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2531 StringRef value = arg->getValue(); 2532 if (Opts.ObjCRuntime.tryParse(value)) 2533 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2534 } 2535 2536 if (Args.hasArg(OPT_fobjc_gc_only)) 2537 Opts.setGC(LangOptions::GCOnly); 2538 else if (Args.hasArg(OPT_fobjc_gc)) 2539 Opts.setGC(LangOptions::HybridGC); 2540 else if (Args.hasArg(OPT_fobjc_arc)) { 2541 Opts.ObjCAutoRefCount = 1; 2542 if (!Opts.ObjCRuntime.allowsARC()) 2543 Diags.Report(diag::err_arc_unsupported_on_runtime); 2544 } 2545 2546 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2547 // whether the feature is actually enabled. This is predominantly 2548 // determined by -fobjc-runtime, but we allow it to be overridden 2549 // from the command line for testing purposes. 2550 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2551 Opts.ObjCWeakRuntime = 1; 2552 else 2553 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2554 2555 // ObjCWeak determines whether __weak is actually enabled. 2556 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2557 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2558 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2559 assert(!Opts.ObjCWeak); 2560 } else if (Opts.getGC() != LangOptions::NonGC) { 2561 Diags.Report(diag::err_objc_weak_with_gc); 2562 } else if (!Opts.ObjCWeakRuntime) { 2563 Diags.Report(diag::err_objc_weak_unsupported); 2564 } else { 2565 Opts.ObjCWeak = 1; 2566 } 2567 } else if (Opts.ObjCAutoRefCount) { 2568 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2569 } 2570 2571 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2572 Opts.ObjCSubscriptingLegacyRuntime = 2573 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2574 } 2575 2576 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2577 // Check that the version has 1 to 3 components and the minor and patch 2578 // versions fit in two decimal digits. 2579 VersionTuple GNUCVer; 2580 bool Invalid = GNUCVer.tryParse(A->getValue()); 2581 unsigned Major = GNUCVer.getMajor(); 2582 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2583 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2584 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2585 Diags.Report(diag::err_drv_invalid_value) 2586 << A->getAsString(Args) << A->getValue(); 2587 } 2588 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2589 } 2590 2591 if (Args.hasArg(OPT_fgnu89_inline)) { 2592 if (Opts.CPlusPlus) 2593 Diags.Report(diag::err_drv_argument_not_allowed_with) 2594 << "-fgnu89-inline" << GetInputKindName(IK); 2595 else 2596 Opts.GNUInline = 1; 2597 } 2598 2599 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2600 Opts.CFRuntime = 2601 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2602 .Cases("unspecified", "standalone", "objc", 2603 LangOptions::CoreFoundationABI::ObjectiveC) 2604 .Cases("swift", "swift-5.0", 2605 LangOptions::CoreFoundationABI::Swift5_0) 2606 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2607 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2608 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2609 2610 // The value-visibility mode defaults to "default". 2611 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2612 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2613 } else { 2614 Opts.setValueVisibilityMode(DefaultVisibility); 2615 } 2616 2617 // The type-visibility mode defaults to the value-visibility mode. 2618 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2619 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2620 } else { 2621 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2622 } 2623 2624 if (Args.hasArg(OPT_fvisibility_from_dllstorageclass)) { 2625 Opts.VisibilityFromDLLStorageClass = 1; 2626 2627 // Translate dllexport defintions to default visibility, by default. 2628 if (Arg *O = Args.getLastArg(OPT_fvisibility_dllexport_EQ)) 2629 Opts.setDLLExportVisibility(parseVisibility(O, Args, Diags)); 2630 else 2631 Opts.setDLLExportVisibility(DefaultVisibility); 2632 2633 // Translate defintions without an explict DLL storage class to hidden 2634 // visibility, by default. 2635 if (Arg *O = Args.getLastArg(OPT_fvisibility_nodllstorageclass_EQ)) 2636 Opts.setNoDLLStorageClassVisibility(parseVisibility(O, Args, Diags)); 2637 else 2638 Opts.setNoDLLStorageClassVisibility(HiddenVisibility); 2639 2640 // Translate dllimport external declarations to default visibility, by 2641 // default. 2642 if (Arg *O = Args.getLastArg(OPT_fvisibility_externs_dllimport_EQ)) 2643 Opts.setExternDeclDLLImportVisibility(parseVisibility(O, Args, Diags)); 2644 else 2645 Opts.setExternDeclDLLImportVisibility(DefaultVisibility); 2646 2647 // Translate external declarations without an explicit DLL storage class 2648 // to hidden visibility, by default. 2649 if (Arg *O = Args.getLastArg(OPT_fvisibility_externs_nodllstorageclass_EQ)) 2650 Opts.setExternDeclNoDLLStorageClassVisibility( 2651 parseVisibility(O, Args, Diags)); 2652 else 2653 Opts.setExternDeclNoDLLStorageClassVisibility(HiddenVisibility); 2654 } 2655 2656 if (Args.hasArg(OPT_ftrapv)) { 2657 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2658 // Set the handler, if one is specified. 2659 Opts.OverflowHandler = 2660 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2661 } 2662 else if (Args.hasArg(OPT_fwrapv)) 2663 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2664 2665 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2666 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2667 Opts.MSCompatibilityVersion = 0; 2668 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2669 VersionTuple VT; 2670 if (VT.tryParse(A->getValue())) 2671 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2672 << A->getValue(); 2673 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2674 VT.getMinor().getValueOr(0) * 100000 + 2675 VT.getSubminor().getValueOr(0); 2676 } 2677 2678 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2679 // is specified, or -std is set to a conforming mode. 2680 // Trigraphs are disabled by default in c++1z onwards. 2681 // For z/OS, trigraphs are enabled by default (without regard to the above). 2682 Opts.Trigraphs = 2683 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 2684 Opts.Trigraphs = 2685 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2686 2687 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2688 OPT_fno_dollars_in_identifiers, 2689 Opts.DollarIdents); 2690 Opts.setVtorDispMode( 2691 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2692 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2693 using LaxKind = LangOptions::LaxVectorConversionKind; 2694 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2695 .Case("none", LaxKind::None) 2696 .Case("integer", LaxKind::Integer) 2697 .Case("all", LaxKind::All) 2698 .Default(llvm::None)) 2699 Opts.setLaxVectorConversions(*Kind); 2700 else 2701 Diags.Report(diag::err_drv_invalid_value) 2702 << A->getAsString(Args) << A->getValue(); 2703 } 2704 2705 // -ffixed-point 2706 Opts.FixedPoint = 2707 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2708 !Opts.CPlusPlus; 2709 Opts.PaddingOnUnsignedFixedPoint = 2710 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2711 OPT_fno_padding_on_unsigned_fixed_point, 2712 /*Default=*/false) && 2713 Opts.FixedPoint; 2714 2715 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2716 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2717 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2718 && Opts.OpenCLVersion == 200); 2719 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2720 2721 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2722 Opts.SYCLIsDevice || 2723 Args.hasArg(OPT_fconvergent_functions); 2724 2725 Opts.DoubleSquareBracketAttributes = 2726 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2727 OPT_fno_double_square_bracket_attributes, 2728 Opts.DoubleSquareBracketAttributes); 2729 2730 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2731 Opts.Modules = 2732 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2733 Opts.ModulesDeclUse = 2734 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2735 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2736 // enter a different module (eg, when building a header unit). 2737 Opts.ModulesLocalVisibility = 2738 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2739 Opts.CPlusPlusModules; 2740 Opts.ModulesSearchAll = Opts.Modules && 2741 !Args.hasArg(OPT_fno_modules_search_all) && 2742 Args.hasArg(OPT_fmodules_search_all); 2743 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2744 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2745 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2746 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2747 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2748 .Case("char", 1) 2749 .Case("short", 2) 2750 .Case("int", 4) 2751 .Default(0); 2752 if (Opts.WCharSize == 0) 2753 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2754 } 2755 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2756 if (!Opts.NoBuiltin) 2757 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2758 Opts.AlignedAllocation = 2759 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2760 Opts.AlignedAllocation); 2761 Opts.AlignedAllocationUnavailable = 2762 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2763 Opts.NewAlignOverride = 2764 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2765 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2766 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2767 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2768 << A->getValue(); 2769 Opts.NewAlignOverride = 0; 2770 } 2771 if (Args.hasArg(OPT_fconcepts_ts)) 2772 Diags.Report(diag::warn_fe_concepts_ts_flag); 2773 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2774 Opts.InstantiationDepth = 2775 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2776 Opts.ArrowDepth = 2777 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2778 Opts.ConstexprCallDepth = 2779 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2780 Opts.ConstexprStepLimit = 2781 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2782 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2783 Opts.NumLargeByValueCopy = 2784 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2785 Opts.ObjCConstantStringClass = 2786 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2787 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2788 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2789 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2790 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2791 ? 128 2792 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2793 Opts.EnableAIXExtendedAltivecABI = Args.hasArg(OPT_mabi_EQ_vec_extabi); 2794 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2795 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2796 || Args.hasArg(OPT_fdump_record_layouts); 2797 if (Opts.FastRelaxedMath) 2798 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2799 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2800 Opts.CurrentModule = Opts.ModuleName; 2801 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2802 llvm::sort(Opts.ModuleFeatures); 2803 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2804 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2805 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2806 // is enabled. 2807 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2808 | Opts.NativeHalfArgsAndReturns; 2809 2810 Opts.ArmSveVectorBits = 2811 getLastArgIntValue(Args, options::OPT_msve_vector_bits_EQ, 0, Diags); 2812 2813 // __declspec is enabled by default for the PS4 by the driver, and also 2814 // enabled for Microsoft Extensions or Borland Extensions, here. 2815 // 2816 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2817 // CUDA extension. However, it is required for supporting 2818 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2819 // been rewritten in terms of something more generic, remove the Opts.CUDA 2820 // term here. 2821 Opts.DeclSpecKeyword = 2822 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2823 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2824 2825 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2826 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2827 .Case("target", LangOptions::ASMM_Target) 2828 .Case("no", LangOptions::ASMM_Off) 2829 .Case("yes", LangOptions::ASMM_On) 2830 .Default(255)) { 2831 default: 2832 Diags.Report(diag::err_drv_invalid_value) 2833 << "-faddress-space-map-mangling=" << A->getValue(); 2834 break; 2835 case LangOptions::ASMM_Target: 2836 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2837 break; 2838 case LangOptions::ASMM_On: 2839 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2840 break; 2841 case LangOptions::ASMM_Off: 2842 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2843 break; 2844 } 2845 } 2846 2847 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2848 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2849 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2850 A->getValue()) 2851 .Case("single", 2852 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2853 .Case("multiple", 2854 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2855 .Case("virtual", 2856 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2857 .Default(LangOptions::PPTMK_BestCase); 2858 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2859 Diags.Report(diag::err_drv_invalid_value) 2860 << "-fms-memptr-rep=" << A->getValue(); 2861 2862 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2863 } 2864 2865 // Check for MS default calling conventions being specified. 2866 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2867 LangOptions::DefaultCallingConvention DefaultCC = 2868 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2869 .Case("cdecl", LangOptions::DCC_CDecl) 2870 .Case("fastcall", LangOptions::DCC_FastCall) 2871 .Case("stdcall", LangOptions::DCC_StdCall) 2872 .Case("vectorcall", LangOptions::DCC_VectorCall) 2873 .Case("regcall", LangOptions::DCC_RegCall) 2874 .Default(LangOptions::DCC_None); 2875 if (DefaultCC == LangOptions::DCC_None) 2876 Diags.Report(diag::err_drv_invalid_value) 2877 << "-fdefault-calling-conv=" << A->getValue(); 2878 2879 llvm::Triple T(TargetOpts.Triple); 2880 llvm::Triple::ArchType Arch = T.getArch(); 2881 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2882 DefaultCC == LangOptions::DCC_StdCall) && 2883 Arch != llvm::Triple::x86; 2884 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2885 DefaultCC == LangOptions::DCC_RegCall) && 2886 !T.isX86(); 2887 if (emitError) 2888 Diags.Report(diag::err_drv_argument_not_allowed_with) 2889 << A->getSpelling() << T.getTriple(); 2890 else 2891 Opts.setDefaultCallingConv(DefaultCC); 2892 } 2893 2894 // -mrtd option 2895 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2896 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2897 Diags.Report(diag::err_drv_argument_not_allowed_with) 2898 << A->getSpelling() << "-fdefault-calling-conv"; 2899 else { 2900 llvm::Triple T(TargetOpts.Triple); 2901 if (T.getArch() != llvm::Triple::x86) 2902 Diags.Report(diag::err_drv_argument_not_allowed_with) 2903 << A->getSpelling() << T.getTriple(); 2904 else 2905 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2906 } 2907 } 2908 2909 // Check if -fopenmp-simd is specified. 2910 bool IsSimdSpecified = 2911 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2912 /*Default=*/false); 2913 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2914 Opts.OpenMPUseTLS = 2915 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2916 Opts.OpenMPIsDevice = 2917 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2918 Opts.OpenMPIRBuilder = 2919 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 2920 bool IsTargetSpecified = 2921 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2922 2923 if (Opts.OpenMP || Opts.OpenMPSimd) { 2924 if (int Version = getLastArgIntValue( 2925 Args, OPT_fopenmp_version_EQ, 2926 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 2927 Opts.OpenMP = Version; 2928 // Provide diagnostic when a given target is not expected to be an OpenMP 2929 // device or host. 2930 if (!Opts.OpenMPIsDevice) { 2931 switch (T.getArch()) { 2932 default: 2933 break; 2934 // Add unsupported host targets here: 2935 case llvm::Triple::nvptx: 2936 case llvm::Triple::nvptx64: 2937 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2938 << TargetOpts.Triple; 2939 break; 2940 } 2941 } 2942 } 2943 2944 // Set the flag to prevent the implementation from emitting device exception 2945 // handling code for those requiring so. 2946 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 2947 Opts.OpenCLCPlusPlus) { 2948 Opts.Exceptions = 0; 2949 Opts.CXXExceptions = 0; 2950 } 2951 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2952 Opts.OpenMPCUDANumSMs = 2953 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2954 Opts.OpenMPCUDANumSMs, Diags); 2955 Opts.OpenMPCUDABlocksPerSM = 2956 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2957 Opts.OpenMPCUDABlocksPerSM, Diags); 2958 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 2959 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 2960 Opts.OpenMPCUDAReductionBufNum, Diags); 2961 } 2962 2963 // Get the OpenMP target triples if any. 2964 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2965 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 2966 auto getArchPtrSize = [](const llvm::Triple &T) { 2967 if (T.isArch16Bit()) 2968 return Arch16Bit; 2969 if (T.isArch32Bit()) 2970 return Arch32Bit; 2971 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 2972 return Arch64Bit; 2973 }; 2974 2975 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2976 llvm::Triple TT(A->getValue(i)); 2977 2978 if (TT.getArch() == llvm::Triple::UnknownArch || 2979 !(TT.getArch() == llvm::Triple::aarch64 || 2980 TT.getArch() == llvm::Triple::ppc || 2981 TT.getArch() == llvm::Triple::ppc64 || 2982 TT.getArch() == llvm::Triple::ppc64le || 2983 TT.getArch() == llvm::Triple::nvptx || 2984 TT.getArch() == llvm::Triple::nvptx64 || 2985 TT.getArch() == llvm::Triple::amdgcn || 2986 TT.getArch() == llvm::Triple::x86 || 2987 TT.getArch() == llvm::Triple::x86_64)) 2988 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2989 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 2990 Diags.Report(diag::err_drv_incompatible_omp_arch) 2991 << A->getValue(i) << T.str(); 2992 else 2993 Opts.OMPTargetTriples.push_back(TT); 2994 } 2995 } 2996 2997 // Get OpenMP host file path if any and report if a non existent file is 2998 // found 2999 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3000 Opts.OMPHostIRFile = A->getValue(); 3001 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3002 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3003 << Opts.OMPHostIRFile; 3004 } 3005 3006 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3007 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3008 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3009 3010 // Set CUDA support for parallel execution of target regions for OpenMP target 3011 // NVPTX/AMDGCN if specified in options. 3012 Opts.OpenMPCUDATargetParallel = 3013 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3014 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3015 3016 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3017 Opts.OpenMPCUDAForceFullRuntime = 3018 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3019 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3020 3021 // Record whether the __DEPRECATED define was requested. 3022 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3023 OPT_fno_deprecated_macro, 3024 Opts.Deprecated); 3025 3026 // FIXME: Eliminate this dependency. 3027 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3028 OptSize = getOptimizationLevelSize(Args); 3029 Opts.Optimize = Opt != 0; 3030 Opts.OptimizeSize = OptSize != 0; 3031 3032 // This is the __NO_INLINE__ define, which just depends on things like the 3033 // optimization level and -fno-inline, not actually whether the backend has 3034 // inlining enabled. 3035 Opts.NoInlineDefine = !Opts.Optimize; 3036 if (Arg *InlineArg = Args.getLastArg( 3037 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3038 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3039 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3040 Opts.NoInlineDefine = true; 3041 3042 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3043 StringRef Val = A->getValue(); 3044 if (Val == "fast") 3045 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3046 else if (Val == "on") 3047 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3048 else if (Val == "off") 3049 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3050 else if (Val == "fast-honor-pragmas") 3051 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3052 else 3053 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3054 } 3055 3056 if (Args.hasArg(OPT_ftrapping_math)) { 3057 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3058 } 3059 3060 if (Args.hasArg(OPT_fno_trapping_math)) { 3061 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3062 } 3063 3064 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3065 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3066 StringRef Val = A->getValue(); 3067 if (Val.equals("ignore")) 3068 FPEB = LangOptions::FPE_Ignore; 3069 else if (Val.equals("maytrap")) 3070 FPEB = LangOptions::FPE_MayTrap; 3071 else if (Val.equals("strict")) 3072 FPEB = LangOptions::FPE_Strict; 3073 else 3074 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3075 } 3076 Opts.setFPExceptionMode(FPEB); 3077 3078 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3079 switch (SSP) { 3080 default: 3081 Diags.Report(diag::err_drv_invalid_value) 3082 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3083 break; 3084 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3085 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3086 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3087 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3088 } 3089 3090 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3091 StringRef Val = A->getValue(); 3092 if (Val == "uninitialized") 3093 Opts.setTrivialAutoVarInit( 3094 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3095 else if (Val == "zero") 3096 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3097 else if (Val == "pattern") 3098 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3099 else 3100 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3101 } 3102 3103 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3104 int Val = std::stoi(A->getValue()); 3105 Opts.TrivialAutoVarInitStopAfter = Val; 3106 } 3107 3108 // Parse -fsanitize= arguments. 3109 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3110 Diags, Opts.Sanitize); 3111 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3112 Opts.SanitizeAddressFieldPadding = 3113 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3114 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3115 std::vector<std::string> systemBlacklists = 3116 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3117 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3118 systemBlacklists.begin(), 3119 systemBlacklists.end()); 3120 3121 // -fxray-{always,never}-instrument= filenames. 3122 Opts.XRayAlwaysInstrumentFiles = 3123 Args.getAllArgValues(OPT_fxray_always_instrument); 3124 Opts.XRayNeverInstrumentFiles = 3125 Args.getAllArgValues(OPT_fxray_never_instrument); 3126 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3127 3128 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3129 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3130 3131 StringRef Ver = A->getValue(); 3132 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3133 unsigned Major, Minor = 0; 3134 3135 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3136 // y or y.0 (4 <= y <= current version). 3137 if (!VerParts.first.startswith("0") && 3138 !VerParts.first.getAsInteger(10, Major) && 3139 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3140 (Major == 3 ? VerParts.second.size() == 1 && 3141 !VerParts.second.getAsInteger(10, Minor) 3142 : VerParts.first.size() == Ver.size() || 3143 VerParts.second == "0")) { 3144 // Got a valid version number. 3145 if (Major == 3 && Minor <= 8) 3146 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3147 else if (Major <= 4) 3148 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3149 else if (Major <= 6) 3150 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3151 else if (Major <= 7) 3152 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3153 else if (Major <= 9) 3154 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3155 else if (Major <= 11) 3156 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3157 } else if (Ver != "latest") { 3158 Diags.Report(diag::err_drv_invalid_value) 3159 << A->getAsString(Args) << A->getValue(); 3160 } 3161 } 3162 3163 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3164 3165 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3166 StringRef SignScope = A->getValue(); 3167 3168 if (SignScope.equals_lower("none")) 3169 Opts.setSignReturnAddressScope( 3170 LangOptions::SignReturnAddressScopeKind::None); 3171 else if (SignScope.equals_lower("all")) 3172 Opts.setSignReturnAddressScope( 3173 LangOptions::SignReturnAddressScopeKind::All); 3174 else if (SignScope.equals_lower("non-leaf")) 3175 Opts.setSignReturnAddressScope( 3176 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3177 else 3178 Diags.Report(diag::err_drv_invalid_value) 3179 << A->getAsString(Args) << SignScope; 3180 3181 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3182 StringRef SignKey = A->getValue(); 3183 if (!SignScope.empty() && !SignKey.empty()) { 3184 if (SignKey.equals_lower("a_key")) 3185 Opts.setSignReturnAddressKey( 3186 LangOptions::SignReturnAddressKeyKind::AKey); 3187 else if (SignKey.equals_lower("b_key")) 3188 Opts.setSignReturnAddressKey( 3189 LangOptions::SignReturnAddressKeyKind::BKey); 3190 else 3191 Diags.Report(diag::err_drv_invalid_value) 3192 << A->getAsString(Args) << SignKey; 3193 } 3194 } 3195 } 3196 3197 std::string ThreadModel = 3198 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 3199 if (ThreadModel != "posix" && ThreadModel != "single") 3200 Diags.Report(diag::err_drv_invalid_value) 3201 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) << ThreadModel; 3202 Opts.setThreadModel( 3203 llvm::StringSwitch<LangOptions::ThreadModelKind>(ThreadModel) 3204 .Case("posix", LangOptions::ThreadModelKind::POSIX) 3205 .Case("single", LangOptions::ThreadModelKind::Single)); 3206 } 3207 3208 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3209 switch (Action) { 3210 case frontend::ASTDeclList: 3211 case frontend::ASTDump: 3212 case frontend::ASTPrint: 3213 case frontend::ASTView: 3214 case frontend::EmitAssembly: 3215 case frontend::EmitBC: 3216 case frontend::EmitHTML: 3217 case frontend::EmitLLVM: 3218 case frontend::EmitLLVMOnly: 3219 case frontend::EmitCodeGenOnly: 3220 case frontend::EmitObj: 3221 case frontend::FixIt: 3222 case frontend::GenerateModule: 3223 case frontend::GenerateModuleInterface: 3224 case frontend::GenerateHeaderModule: 3225 case frontend::GeneratePCH: 3226 case frontend::GenerateInterfaceStubs: 3227 case frontend::ParseSyntaxOnly: 3228 case frontend::ModuleFileInfo: 3229 case frontend::VerifyPCH: 3230 case frontend::PluginAction: 3231 case frontend::RewriteObjC: 3232 case frontend::RewriteTest: 3233 case frontend::RunAnalysis: 3234 case frontend::TemplightDump: 3235 case frontend::MigrateSource: 3236 return false; 3237 3238 case frontend::DumpCompilerOptions: 3239 case frontend::DumpRawTokens: 3240 case frontend::DumpTokens: 3241 case frontend::InitOnly: 3242 case frontend::PrintPreamble: 3243 case frontend::PrintPreprocessedInput: 3244 case frontend::RewriteMacros: 3245 case frontend::RunPreprocessorOnly: 3246 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3247 return true; 3248 } 3249 llvm_unreachable("invalid frontend action"); 3250 } 3251 3252 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3253 DiagnosticsEngine &Diags, 3254 frontend::ActionKind Action) { 3255 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3256 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3257 Args.hasArg(OPT_pch_through_hdrstop_use); 3258 Opts.PCHThroughHeader = 3259 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3260 Opts.AllowPCHWithCompilerErrors = 3261 Args.hasArg(OPT_fallow_pch_with_errors, OPT_fallow_pcm_with_errors); 3262 3263 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3264 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3265 3266 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3267 auto Split = StringRef(A).split('='); 3268 Opts.MacroPrefixMap.insert( 3269 {std::string(Split.first), std::string(Split.second)}); 3270 } 3271 3272 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3273 StringRef Value(A->getValue()); 3274 size_t Comma = Value.find(','); 3275 unsigned Bytes = 0; 3276 unsigned EndOfLine = 0; 3277 3278 if (Comma == StringRef::npos || 3279 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3280 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3281 Diags.Report(diag::err_drv_preamble_format); 3282 else { 3283 Opts.PrecompiledPreambleBytes.first = Bytes; 3284 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3285 } 3286 } 3287 3288 // Add the __CET__ macro if a CFProtection option is set. 3289 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3290 StringRef Name = A->getValue(); 3291 if (Name == "branch") 3292 Opts.addMacroDef("__CET__=1"); 3293 else if (Name == "return") 3294 Opts.addMacroDef("__CET__=2"); 3295 else if (Name == "full") 3296 Opts.addMacroDef("__CET__=3"); 3297 } 3298 3299 // Add macros from the command line. 3300 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3301 if (A->getOption().matches(OPT_D)) 3302 Opts.addMacroDef(A->getValue()); 3303 else 3304 Opts.addMacroUndef(A->getValue()); 3305 } 3306 3307 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3308 3309 // Add the ordered list of -includes. 3310 for (const auto *A : Args.filtered(OPT_include)) 3311 Opts.Includes.emplace_back(A->getValue()); 3312 3313 for (const auto *A : Args.filtered(OPT_chain_include)) 3314 Opts.ChainedIncludes.emplace_back(A->getValue()); 3315 3316 for (const auto *A : Args.filtered(OPT_remap_file)) { 3317 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3318 3319 if (Split.second.empty()) { 3320 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3321 continue; 3322 } 3323 3324 Opts.addRemappedFile(Split.first, Split.second); 3325 } 3326 3327 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3328 StringRef Name = A->getValue(); 3329 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3330 .Case("libc++", ARCXX_libcxx) 3331 .Case("libstdc++", ARCXX_libstdcxx) 3332 .Case("none", ARCXX_nolib) 3333 .Default(~0U); 3334 if (Library == ~0U) 3335 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3336 else 3337 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3338 } 3339 3340 // Always avoid lexing editor placeholders when we're just running the 3341 // preprocessor as we never want to emit the 3342 // "editor placeholder in source file" error in PP only mode. 3343 if (isStrictlyPreprocessorAction(Action)) 3344 Opts.LexEditorPlaceholders = false; 3345 } 3346 3347 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3348 ArgList &Args, 3349 frontend::ActionKind Action) { 3350 if (isStrictlyPreprocessorAction(Action)) 3351 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3352 else 3353 Opts.ShowCPP = 0; 3354 3355 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3356 } 3357 3358 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3359 DiagnosticsEngine &Diags) { 3360 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3361 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3362 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3363 StringRef Value = A->getValue(); 3364 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3365 .Case("default", llvm::EABI::Default) 3366 .Case("4", llvm::EABI::EABI4) 3367 .Case("5", llvm::EABI::EABI5) 3368 .Case("gnu", llvm::EABI::GNU) 3369 .Default(llvm::EABI::Unknown); 3370 if (EABIVersion == llvm::EABI::Unknown) 3371 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3372 << Value; 3373 else 3374 Opts.EABIVersion = EABIVersion; 3375 } 3376 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3377 Opts.TuneCPU = std::string(Args.getLastArgValue(OPT_tune_cpu)); 3378 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3379 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3380 Opts.LinkerVersion = 3381 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3382 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3383 Opts.AllowAMDGPUUnsafeFPAtomics = 3384 Args.hasFlag(options::OPT_munsafe_fp_atomics, 3385 options::OPT_mno_unsafe_fp_atomics, false); 3386 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3387 llvm::VersionTuple Version; 3388 if (Version.tryParse(A->getValue())) 3389 Diags.Report(diag::err_drv_invalid_value) 3390 << A->getAsString(Args) << A->getValue(); 3391 else 3392 Opts.SDKVersion = Version; 3393 } 3394 } 3395 3396 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 3397 DiagnosticsEngine &Diags) { 3398 #define OPTION_WITH_MARSHALLING( \ 3399 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3400 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3401 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, \ 3402 TABLE_INDEX) \ 3403 if ((FLAGS)&options::CC1Option) { \ 3404 this->KEYPATH = MERGER(this->KEYPATH, DEFAULT_VALUE); \ 3405 if (IMPLIED_CHECK) \ 3406 this->KEYPATH = MERGER(this->KEYPATH, IMPLIED_VALUE); \ 3407 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, Args, Diags)) \ 3408 this->KEYPATH = MERGER( \ 3409 this->KEYPATH, static_cast<decltype(this->KEYPATH)>(*MaybeValue)); \ 3410 } 3411 3412 #include "clang/Driver/Options.inc" 3413 #undef OPTION_WITH_MARSHALLING 3414 return true; 3415 } 3416 3417 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3418 ArrayRef<const char *> CommandLineArgs, 3419 DiagnosticsEngine &Diags, 3420 const char *Argv0) { 3421 bool Success = true; 3422 3423 // Parse the arguments. 3424 const OptTable &Opts = getDriverOptTable(); 3425 const unsigned IncludedFlagsBitmask = options::CC1Option; 3426 unsigned MissingArgIndex, MissingArgCount; 3427 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3428 MissingArgCount, IncludedFlagsBitmask); 3429 LangOptions &LangOpts = *Res.getLangOpts(); 3430 3431 // Check for missing argument error. 3432 if (MissingArgCount) { 3433 Diags.Report(diag::err_drv_missing_argument) 3434 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3435 Success = false; 3436 } 3437 3438 // Issue errors on unknown arguments. 3439 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3440 auto ArgString = A->getAsString(Args); 3441 std::string Nearest; 3442 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3443 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3444 else 3445 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3446 << ArgString << Nearest; 3447 Success = false; 3448 } 3449 3450 Success &= Res.parseSimpleArgs(Args, Diags); 3451 3452 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3453 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3454 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3455 Res.getDependencyOutputOpts().Targets.empty()) { 3456 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3457 Success = false; 3458 } 3459 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3460 /*DefaultDiagColor=*/false); 3461 ParseCommentArgs(LangOpts.CommentOpts, Args); 3462 // FIXME: We shouldn't have to pass the DashX option around here 3463 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3464 LangOpts.IsHeaderFile); 3465 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3466 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3467 Res.getTargetOpts(), Res.getFrontendOpts()); 3468 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3469 Res.getFileSystemOpts().WorkingDir); 3470 llvm::Triple T(Res.getTargetOpts().Triple); 3471 if (DashX.getFormat() == InputKind::Precompiled || 3472 DashX.getLanguage() == Language::LLVM_IR) { 3473 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3474 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3475 // what the input type is. 3476 if (Args.hasArg(OPT_fobjc_arc)) 3477 LangOpts.ObjCAutoRefCount = 1; 3478 // PIClevel and PIELevel are needed during code generation and this should be 3479 // set regardless of the input type. 3480 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3481 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3482 Diags, LangOpts.Sanitize); 3483 } else { 3484 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3485 // FIXME: Should we really be calling this for an Language::Asm input? 3486 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3487 Res.getPreprocessorOpts(), Diags); 3488 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3489 LangOpts.ObjCExceptions = 1; 3490 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3491 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3492 // preprocessed input as we don't expect it to be used with -std=libc++ 3493 // anyway. 3494 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3495 } 3496 } 3497 3498 LangOpts.FunctionAlignment = 3499 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3500 3501 if (LangOpts.CUDA) { 3502 // During CUDA device-side compilation, the aux triple is the 3503 // triple used for host compilation. 3504 if (LangOpts.CUDAIsDevice) 3505 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3506 } 3507 3508 // Set the triple of the host for OpenMP device compile. 3509 if (LangOpts.OpenMPIsDevice) 3510 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3511 3512 // FIXME: Override value name discarding when asan or msan is used because the 3513 // backend passes depend on the name of the alloca in order to print out 3514 // names. 3515 Res.getCodeGenOpts().DiscardValueNames &= 3516 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3517 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3518 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3519 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3520 3521 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3522 Res.getFrontendOpts().ProgramAction); 3523 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3524 Res.getFrontendOpts().ProgramAction); 3525 3526 // Turn on -Wspir-compat for SPIR target. 3527 if (T.isSPIR()) 3528 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3529 3530 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3531 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3532 !Res.getLangOpts()->Sanitize.empty()) { 3533 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3534 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3535 } 3536 3537 // Store the command-line for using in the CodeView backend. 3538 Res.getCodeGenOpts().Argv0 = Argv0; 3539 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 3540 3541 FixupInvocation(Res, Diags); 3542 3543 return Success; 3544 } 3545 3546 std::string CompilerInvocation::getModuleHash() const { 3547 // Note: For QoI reasons, the things we use as a hash here should all be 3548 // dumped via the -module-info flag. 3549 using llvm::hash_code; 3550 using llvm::hash_value; 3551 using llvm::hash_combine; 3552 using llvm::hash_combine_range; 3553 3554 // Start the signature with the compiler version. 3555 // FIXME: We'd rather use something more cryptographically sound than 3556 // CityHash, but this will do for now. 3557 hash_code code = hash_value(getClangFullRepositoryVersion()); 3558 3559 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3560 // and getClangFullRepositoryVersion() doesn't include git revision. 3561 code = hash_combine(code, serialization::VERSION_MAJOR, 3562 serialization::VERSION_MINOR); 3563 3564 // Extend the signature with the language options 3565 #define LANGOPT(Name, Bits, Default, Description) \ 3566 code = hash_combine(code, LangOpts->Name); 3567 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3568 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3569 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3570 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3571 #include "clang/Basic/LangOptions.def" 3572 3573 for (StringRef Feature : LangOpts->ModuleFeatures) 3574 code = hash_combine(code, Feature); 3575 3576 code = hash_combine(code, LangOpts->ObjCRuntime); 3577 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 3578 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 3579 3580 // Extend the signature with the target options. 3581 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3582 TargetOpts->TuneCPU, TargetOpts->ABI); 3583 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3584 code = hash_combine(code, FeatureAsWritten); 3585 3586 // Extend the signature with preprocessor options. 3587 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3588 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3589 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3590 3591 for (const auto &I : getPreprocessorOpts().Macros) { 3592 // If we're supposed to ignore this macro for the purposes of modules, 3593 // don't put it into the hash. 3594 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3595 // Check whether we're ignoring this macro. 3596 StringRef MacroDef = I.first; 3597 if (hsOpts.ModulesIgnoreMacros.count( 3598 llvm::CachedHashString(MacroDef.split('=').first))) 3599 continue; 3600 } 3601 3602 code = hash_combine(code, I.first, I.second); 3603 } 3604 3605 // Extend the signature with the sysroot and other header search options. 3606 code = hash_combine(code, hsOpts.Sysroot, 3607 hsOpts.ModuleFormat, 3608 hsOpts.UseDebugInfo, 3609 hsOpts.UseBuiltinIncludes, 3610 hsOpts.UseStandardSystemIncludes, 3611 hsOpts.UseStandardCXXIncludes, 3612 hsOpts.UseLibcxx, 3613 hsOpts.ModulesValidateDiagnosticOptions); 3614 code = hash_combine(code, hsOpts.ResourceDir); 3615 3616 if (hsOpts.ModulesStrictContextHash) { 3617 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3618 hsOpts.SystemHeaderPrefixes.end()); 3619 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3620 hsOpts.UserEntries.end()); 3621 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3622 hsOpts.UserEntries.size(), UEC); 3623 3624 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3625 #define DIAGOPT(Name, Bits, Default) \ 3626 code = hash_combine(code, diagOpts.Name); 3627 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3628 code = hash_combine(code, diagOpts.get##Name()); 3629 #include "clang/Basic/DiagnosticOptions.def" 3630 #undef DIAGOPT 3631 #undef ENUM_DIAGOPT 3632 } 3633 3634 // Extend the signature with the user build path. 3635 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3636 3637 // Extend the signature with the module file extensions. 3638 const FrontendOptions &frontendOpts = getFrontendOpts(); 3639 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3640 code = ext->hashExtension(code); 3641 } 3642 3643 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3644 // affects the debug info in the PCM. 3645 if (getCodeGenOpts().DebugTypeExtRefs) 3646 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3647 code = hash_combine(code, KeyValue.first, KeyValue.second); 3648 3649 // Extend the signature with the enabled sanitizers, if at least one is 3650 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3651 SanitizerSet SanHash = LangOpts->Sanitize; 3652 SanHash.clear(getPPTransparentSanitizers()); 3653 if (!SanHash.empty()) 3654 code = hash_combine(code, SanHash.Mask); 3655 3656 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3657 } 3658 3659 void CompilerInvocation::generateCC1CommandLine( 3660 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 3661 // Capture the extracted value as a lambda argument to avoid potential issues 3662 // with lifetime extension of the reference. 3663 #define OPTION_WITH_MARSHALLING( \ 3664 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3665 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3666 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, \ 3667 TABLE_INDEX) \ 3668 if ((FLAGS)&options::CC1Option) { \ 3669 [&](const auto &Extracted) { \ 3670 if (ALWAYS_EMIT || \ 3671 (Extracted != \ 3672 static_cast<decltype(this->KEYPATH)>( \ 3673 (IMPLIED_CHECK) ? (IMPLIED_VALUE) : (DEFAULT_VALUE)))) \ 3674 DENORMALIZER(Args, SPELLING, SA, TABLE_INDEX, Extracted); \ 3675 }(EXTRACTOR(this->KEYPATH)); \ 3676 } 3677 3678 #include "clang/Driver/Options.inc" 3679 #undef OPTION_WITH_MARSHALLING 3680 } 3681 3682 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3683 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3684 DiagnosticsEngine &Diags) { 3685 return createVFSFromCompilerInvocation(CI, Diags, 3686 llvm::vfs::getRealFileSystem()); 3687 } 3688 3689 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3690 clang::createVFSFromCompilerInvocation( 3691 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3692 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3693 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3694 return BaseFS; 3695 3696 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3697 // earlier vfs files are on the bottom 3698 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3699 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3700 Result->getBufferForFile(File); 3701 if (!Buffer) { 3702 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3703 continue; 3704 } 3705 3706 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3707 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3708 /*DiagContext*/ nullptr, Result); 3709 if (!FS) { 3710 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3711 continue; 3712 } 3713 3714 Result = FS; 3715 } 3716 return Result; 3717 } 3718