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