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/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/Utils.h" 41 #include "clang/Lex/HeaderSearchOptions.h" 42 #include "clang/Lex/PreprocessorOptions.h" 43 #include "clang/Sema/CodeCompleteOptions.h" 44 #include "clang/Serialization/ASTBitCodes.h" 45 #include "clang/Serialization/ModuleFileExtension.h" 46 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 47 #include "llvm/ADT/APInt.h" 48 #include "llvm/ADT/ArrayRef.h" 49 #include "llvm/ADT/CachedHashString.h" 50 #include "llvm/ADT/FloatingPointMode.h" 51 #include "llvm/ADT/Hashing.h" 52 #include "llvm/ADT/None.h" 53 #include "llvm/ADT/Optional.h" 54 #include "llvm/ADT/SmallString.h" 55 #include "llvm/ADT/SmallVector.h" 56 #include "llvm/ADT/StringRef.h" 57 #include "llvm/ADT/StringSwitch.h" 58 #include "llvm/ADT/Triple.h" 59 #include "llvm/ADT/Twine.h" 60 #include "llvm/IR/DebugInfoMetadata.h" 61 #include "llvm/Linker/Linker.h" 62 #include "llvm/MC/MCTargetOptions.h" 63 #include "llvm/Option/Arg.h" 64 #include "llvm/Option/ArgList.h" 65 #include "llvm/Option/OptSpecifier.h" 66 #include "llvm/Option/OptTable.h" 67 #include "llvm/Option/Option.h" 68 #include "llvm/ProfileData/InstrProfReader.h" 69 #include "llvm/Support/CodeGen.h" 70 #include "llvm/Support/Compiler.h" 71 #include "llvm/Support/Error.h" 72 #include "llvm/Support/ErrorHandling.h" 73 #include "llvm/Support/ErrorOr.h" 74 #include "llvm/Support/FileSystem.h" 75 #include "llvm/Support/Host.h" 76 #include "llvm/Support/MathExtras.h" 77 #include "llvm/Support/MemoryBuffer.h" 78 #include "llvm/Support/Path.h" 79 #include "llvm/Support/Process.h" 80 #include "llvm/Support/Regex.h" 81 #include "llvm/Support/VersionTuple.h" 82 #include "llvm/Support/VirtualFileSystem.h" 83 #include "llvm/Support/raw_ostream.h" 84 #include "llvm/Target/TargetOptions.h" 85 #include <algorithm> 86 #include <atomic> 87 #include <cassert> 88 #include <cstddef> 89 #include <cstring> 90 #include <memory> 91 #include <string> 92 #include <tuple> 93 #include <utility> 94 #include <vector> 95 96 using namespace clang; 97 using namespace driver; 98 using namespace options; 99 using namespace llvm::opt; 100 101 //===----------------------------------------------------------------------===// 102 // Initialization. 103 //===----------------------------------------------------------------------===// 104 105 CompilerInvocationBase::CompilerInvocationBase() 106 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 107 DiagnosticOpts(new DiagnosticOptions()), 108 HeaderSearchOpts(new HeaderSearchOptions()), 109 PreprocessorOpts(new PreprocessorOptions()) {} 110 111 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 112 : LangOpts(new LangOptions(*X.getLangOpts())), 113 TargetOpts(new TargetOptions(X.getTargetOpts())), 114 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 115 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 116 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 117 118 CompilerInvocationBase::~CompilerInvocationBase() = default; 119 120 //===----------------------------------------------------------------------===// 121 // Normalizers 122 //===----------------------------------------------------------------------===// 123 124 #define SIMPLE_ENUM_VALUE_TABLE 125 #include "clang/Driver/Options.inc" 126 #undef SIMPLE_ENUM_VALUE_TABLE 127 128 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 129 unsigned TableIndex, 130 const ArgList &Args, 131 DiagnosticsEngine &Diags) { 132 if (Args.hasArg(Opt)) 133 return true; 134 return None; 135 } 136 137 void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 138 const char *Spelling, 139 CompilerInvocation::StringAllocator SA, 140 unsigned TableIndex, unsigned Value) { 141 Args.push_back(Spelling); 142 } 143 144 template <typename T, T Value> 145 static llvm::Optional<T> 146 normalizeFlagToValue(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 147 DiagnosticsEngine &Diags) { 148 if (Args.hasArg(Opt)) 149 return Value; 150 return None; 151 } 152 153 static Optional<bool> normalizeBooleanFlag(OptSpecifier PosOpt, 154 OptSpecifier NegOpt, 155 unsigned TableIndex, 156 const ArgList &Args, 157 DiagnosticsEngine &Diags) { 158 if (const Arg *A = Args.getLastArg(PosOpt, NegOpt)) 159 return A->getOption().matches(PosOpt); 160 return None; 161 } 162 163 static void denormalizeBooleanFlag(SmallVectorImpl<const char *> &Args, 164 const char *Spelling, 165 const char *NegSpelling, 166 CompilerInvocation::StringAllocator SA, 167 unsigned TableIndex, unsigned Value) { 168 if (Value) 169 Args.push_back(Spelling); 170 else 171 Args.push_back(NegSpelling); 172 } 173 174 static Optional<SimpleEnumValue> 175 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 176 for (int I = 0, E = Table.Size; I != E; ++I) 177 if (Name == Table.Table[I].Name) 178 return Table.Table[I]; 179 180 return None; 181 } 182 183 static Optional<SimpleEnumValue> 184 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 185 for (int I = 0, E = Table.Size; I != E; ++I) 186 if (Value == Table.Table[I].Value) 187 return Table.Table[I]; 188 189 return None; 190 } 191 192 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 193 unsigned TableIndex, 194 const ArgList &Args, 195 DiagnosticsEngine &Diags) { 196 assert(TableIndex < SimpleEnumValueTablesSize); 197 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 198 199 auto *Arg = Args.getLastArg(Opt); 200 if (!Arg) 201 return None; 202 203 StringRef ArgValue = Arg->getValue(); 204 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 205 return MaybeEnumVal->Value; 206 207 Diags.Report(diag::err_drv_invalid_value) 208 << Arg->getAsString(Args) << ArgValue; 209 return None; 210 } 211 212 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 213 const char *Spelling, 214 CompilerInvocation::StringAllocator SA, 215 unsigned TableIndex, unsigned Value) { 216 assert(TableIndex < SimpleEnumValueTablesSize); 217 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 218 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 219 Args.push_back(Spelling); 220 Args.push_back(MaybeEnumVal->Name); 221 } else { 222 llvm_unreachable("The simple enum value was not correctly defined in " 223 "the tablegen option description"); 224 } 225 } 226 227 static void denormalizeSimpleEnumJoined(SmallVectorImpl<const char *> &Args, 228 const char *Spelling, 229 CompilerInvocation::StringAllocator SA, 230 unsigned TableIndex, unsigned Value) { 231 assert(TableIndex < SimpleEnumValueTablesSize); 232 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 233 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) 234 Args.push_back(SA(Twine(Spelling) + MaybeEnumVal->Name)); 235 else 236 llvm_unreachable("The simple enum value was not correctly defined in " 237 "the tablegen option description"); 238 } 239 240 static void denormalizeString(SmallVectorImpl<const char *> &Args, 241 const char *Spelling, 242 CompilerInvocation::StringAllocator SA, 243 unsigned TableIndex, const std::string &Value) { 244 Args.push_back(Spelling); 245 Args.push_back(SA(Value)); 246 } 247 248 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 249 const ArgList &Args, 250 DiagnosticsEngine &Diags) { 251 auto *Arg = Args.getLastArg(Opt); 252 if (!Arg) 253 return None; 254 return llvm::Triple::normalize(Arg->getValue()); 255 } 256 257 template <typename T, typename U> 258 static T mergeForwardValue(T KeyPath, U Value) { 259 return static_cast<T>(Value); 260 } 261 262 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 263 return KeyPath | Value; 264 } 265 266 template <typename T> static T extractForwardValue(T KeyPath) { 267 return KeyPath; 268 } 269 270 template <typename T, typename U, U Value> 271 static T extractMaskValue(T KeyPath) { 272 return KeyPath & Value; 273 } 274 275 static void FixupInvocation(CompilerInvocation &Invocation) { 276 LangOptions &LangOpts = *Invocation.getLangOpts(); 277 DiagnosticOptions &DiagOpts = Invocation.getDiagnosticOpts(); 278 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 279 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 280 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 281 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 282 283 llvm::sys::Process::UseANSIEscapeCodes(DiagOpts.UseANSIEscapeCodes); 284 } 285 286 //===----------------------------------------------------------------------===// 287 // Deserialization (from args) 288 //===----------------------------------------------------------------------===// 289 290 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 291 DiagnosticsEngine &Diags) { 292 unsigned DefaultOpt = llvm::CodeGenOpt::None; 293 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 294 DefaultOpt = llvm::CodeGenOpt::Default; 295 296 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 297 if (A->getOption().matches(options::OPT_O0)) 298 return llvm::CodeGenOpt::None; 299 300 if (A->getOption().matches(options::OPT_Ofast)) 301 return llvm::CodeGenOpt::Aggressive; 302 303 assert(A->getOption().matches(options::OPT_O)); 304 305 StringRef S(A->getValue()); 306 if (S == "s" || S == "z") 307 return llvm::CodeGenOpt::Default; 308 309 if (S == "g") 310 return llvm::CodeGenOpt::Less; 311 312 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 313 } 314 315 return DefaultOpt; 316 } 317 318 static unsigned getOptimizationLevelSize(ArgList &Args) { 319 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 320 if (A->getOption().matches(options::OPT_O)) { 321 switch (A->getValue()[0]) { 322 default: 323 return 0; 324 case 's': 325 return 1; 326 case 'z': 327 return 2; 328 } 329 } 330 } 331 return 0; 332 } 333 334 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 335 OptSpecifier GroupWithValue, 336 std::vector<std::string> &Diagnostics) { 337 for (auto *A : Args.filtered(Group)) { 338 if (A->getOption().getKind() == Option::FlagClass) { 339 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 340 // its name (minus the "W" or "R" at the beginning) to the warning list. 341 Diagnostics.push_back( 342 std::string(A->getOption().getName().drop_front(1))); 343 } else if (A->getOption().matches(GroupWithValue)) { 344 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 345 Diagnostics.push_back( 346 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 347 } else { 348 // Otherwise, add its value (for OPT_W_Joined and similar). 349 for (const auto *Arg : A->getValues()) 350 Diagnostics.emplace_back(Arg); 351 } 352 } 353 } 354 355 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 356 // it won't verify the input. 357 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 358 DiagnosticsEngine *Diags); 359 360 static void getAllNoBuiltinFuncValues(ArgList &Args, 361 std::vector<std::string> &Funcs) { 362 SmallVector<const char *, 8> Values; 363 for (const auto &Arg : Args) { 364 const Option &O = Arg->getOption(); 365 if (O.matches(options::OPT_fno_builtin_)) { 366 const char *FuncName = Arg->getValue(); 367 if (Builtin::Context::isBuiltinFunc(FuncName)) 368 Values.push_back(FuncName); 369 } 370 } 371 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 372 } 373 374 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 375 DiagnosticsEngine &Diags) { 376 bool Success = true; 377 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 378 StringRef Name = A->getValue(); 379 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 380 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 381 .Case(CMDFLAG, NAME##Model) 382 #include "clang/StaticAnalyzer/Core/Analyses.def" 383 .Default(NumStores); 384 if (Value == NumStores) { 385 Diags.Report(diag::err_drv_invalid_value) 386 << A->getAsString(Args) << Name; 387 Success = false; 388 } else { 389 Opts.AnalysisStoreOpt = Value; 390 } 391 } 392 393 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 394 StringRef Name = A->getValue(); 395 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 396 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 397 .Case(CMDFLAG, NAME##Model) 398 #include "clang/StaticAnalyzer/Core/Analyses.def" 399 .Default(NumConstraints); 400 if (Value == NumConstraints) { 401 Diags.Report(diag::err_drv_invalid_value) 402 << A->getAsString(Args) << Name; 403 Success = false; 404 } else { 405 Opts.AnalysisConstraintsOpt = Value; 406 } 407 } 408 409 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 410 StringRef Name = A->getValue(); 411 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 412 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 413 .Case(CMDFLAG, PD_##NAME) 414 #include "clang/StaticAnalyzer/Core/Analyses.def" 415 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 416 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 417 Diags.Report(diag::err_drv_invalid_value) 418 << A->getAsString(Args) << Name; 419 Success = false; 420 } else { 421 Opts.AnalysisDiagOpt = Value; 422 } 423 } 424 425 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 426 StringRef Name = A->getValue(); 427 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 428 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 429 .Case(CMDFLAG, NAME) 430 #include "clang/StaticAnalyzer/Core/Analyses.def" 431 .Default(NumPurgeModes); 432 if (Value == NumPurgeModes) { 433 Diags.Report(diag::err_drv_invalid_value) 434 << A->getAsString(Args) << Name; 435 Success = false; 436 } else { 437 Opts.AnalysisPurgeOpt = Value; 438 } 439 } 440 441 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 442 StringRef Name = A->getValue(); 443 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 444 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 445 .Case(CMDFLAG, NAME) 446 #include "clang/StaticAnalyzer/Core/Analyses.def" 447 .Default(NumInliningModes); 448 if (Value == NumInliningModes) { 449 Diags.Report(diag::err_drv_invalid_value) 450 << A->getAsString(Args) << Name; 451 Success = false; 452 } else { 453 Opts.InliningMode = Value; 454 } 455 } 456 457 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 458 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 459 Opts.ShowCheckerHelpDeveloper = 460 Args.hasArg(OPT_analyzer_checker_help_developer); 461 462 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 463 Opts.ShowCheckerOptionAlphaList = 464 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 465 Opts.ShowCheckerOptionDeveloperList = 466 Args.hasArg(OPT_analyzer_checker_option_help_developer); 467 468 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 469 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 470 Opts.ShouldEmitErrorsOnInvalidConfigValue = 471 /* negated */!llvm::StringSwitch<bool>( 472 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 473 .Case("true", true) 474 .Case("false", false) 475 .Default(false); 476 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 477 478 Opts.visualizeExplodedGraphWithGraphViz = 479 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 480 Opts.DumpExplodedGraphTo = 481 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 482 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 483 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 484 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 485 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 486 Opts.AnalyzeNestedBlocks = 487 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 488 Opts.AnalyzeSpecificFunction = 489 std::string(Args.getLastArgValue(OPT_analyze_function)); 490 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 491 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 492 Opts.maxBlockVisitOnPath = 493 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 494 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 495 Opts.InlineMaxStackDepth = 496 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 497 Opts.InlineMaxStackDepth, Diags); 498 499 Opts.CheckersAndPackages.clear(); 500 for (const Arg *A : 501 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 502 A->claim(); 503 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 504 // We can have a list of comma separated checker names, e.g: 505 // '-analyzer-checker=cocoa,unix' 506 StringRef CheckerAndPackageList = A->getValue(); 507 SmallVector<StringRef, 16> CheckersAndPackages; 508 CheckerAndPackageList.split(CheckersAndPackages, ","); 509 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 510 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 511 IsEnabled); 512 } 513 514 // Go through the analyzer configuration options. 515 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 516 517 // We can have a list of comma separated config names, e.g: 518 // '-analyzer-config key1=val1,key2=val2' 519 StringRef configList = A->getValue(); 520 SmallVector<StringRef, 4> configVals; 521 configList.split(configVals, ","); 522 for (const auto &configVal : configVals) { 523 StringRef key, val; 524 std::tie(key, val) = configVal.split("="); 525 if (val.empty()) { 526 Diags.Report(SourceLocation(), 527 diag::err_analyzer_config_no_value) << configVal; 528 Success = false; 529 break; 530 } 531 if (val.find('=') != StringRef::npos) { 532 Diags.Report(SourceLocation(), 533 diag::err_analyzer_config_multiple_values) 534 << configVal; 535 Success = false; 536 break; 537 } 538 539 // TODO: Check checker options too, possibly in CheckerRegistry. 540 // Leave unknown non-checker configs unclaimed. 541 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 542 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 543 Diags.Report(diag::err_analyzer_config_unknown) << key; 544 continue; 545 } 546 547 A->claim(); 548 Opts.Config[key] = std::string(val); 549 } 550 } 551 552 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 553 parseAnalyzerConfigs(Opts, &Diags); 554 else 555 parseAnalyzerConfigs(Opts, nullptr); 556 557 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 558 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 559 if (i != 0) 560 os << " "; 561 os << Args.getArgString(i); 562 } 563 os.flush(); 564 565 return Success; 566 } 567 568 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 569 StringRef OptionName, StringRef DefaultVal) { 570 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 571 } 572 573 static void initOption(AnalyzerOptions::ConfigTable &Config, 574 DiagnosticsEngine *Diags, 575 StringRef &OptionField, StringRef Name, 576 StringRef DefaultVal) { 577 // String options may be known to invalid (e.g. if the expected string is a 578 // file name, but the file does not exist), those will have to be checked in 579 // parseConfigs. 580 OptionField = getStringOption(Config, Name, DefaultVal); 581 } 582 583 static void initOption(AnalyzerOptions::ConfigTable &Config, 584 DiagnosticsEngine *Diags, 585 bool &OptionField, StringRef Name, bool DefaultVal) { 586 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 587 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 588 .Case("true", true) 589 .Case("false", false) 590 .Default(None); 591 592 if (!PossiblyInvalidVal) { 593 if (Diags) 594 Diags->Report(diag::err_analyzer_config_invalid_input) 595 << Name << "a boolean"; 596 else 597 OptionField = DefaultVal; 598 } else 599 OptionField = PossiblyInvalidVal.getValue(); 600 } 601 602 static void initOption(AnalyzerOptions::ConfigTable &Config, 603 DiagnosticsEngine *Diags, 604 unsigned &OptionField, StringRef Name, 605 unsigned DefaultVal) { 606 607 OptionField = DefaultVal; 608 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 609 .getAsInteger(0, OptionField); 610 if (Diags && HasFailed) 611 Diags->Report(diag::err_analyzer_config_invalid_input) 612 << Name << "an unsigned"; 613 } 614 615 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 616 DiagnosticsEngine *Diags) { 617 // TODO: There's no need to store the entire configtable, it'd be plenty 618 // enough tostore checker options. 619 620 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 621 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 622 623 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 624 SHALLOW_VAL, DEEP_VAL) \ 625 switch (AnOpts.getUserMode()) { \ 626 case UMK_Shallow: \ 627 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 628 break; \ 629 case UMK_Deep: \ 630 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 631 break; \ 632 } \ 633 634 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 635 #undef ANALYZER_OPTION 636 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 637 638 // At this point, AnalyzerOptions is configured. Let's validate some options. 639 640 // FIXME: Here we try to validate the silenced checkers or packages are valid. 641 // The current approach only validates the registered checkers which does not 642 // contain the runtime enabled checkers and optimally we would validate both. 643 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 644 std::vector<StringRef> Checkers = 645 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 646 std::vector<StringRef> Packages = 647 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 648 649 SmallVector<StringRef, 16> CheckersAndPackages; 650 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 651 652 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 653 if (Diags) { 654 bool IsChecker = CheckerOrPackage.contains('.'); 655 bool IsValidName = 656 IsChecker 657 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 658 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 659 660 if (!IsValidName) 661 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 662 << CheckerOrPackage; 663 } 664 665 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 666 } 667 } 668 669 if (!Diags) 670 return; 671 672 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 673 Diags->Report(diag::err_analyzer_config_invalid_input) 674 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 675 676 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 677 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 678 << "a filename"; 679 680 if (!AnOpts.ModelPath.empty() && 681 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 682 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 683 << "a filename"; 684 } 685 686 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 687 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 688 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 689 return true; 690 } 691 692 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 693 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 694 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 695 } 696 697 /// Create a new Regex instance out of the string value in \p RpassArg. 698 /// It returns a pointer to the newly generated Regex instance. 699 static std::shared_ptr<llvm::Regex> 700 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 701 Arg *RpassArg) { 702 StringRef Val = RpassArg->getValue(); 703 std::string RegexError; 704 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 705 if (!Pattern->isValid(RegexError)) { 706 Diags.Report(diag::err_drv_optimization_remark_pattern) 707 << RegexError << RpassArg->getAsString(Args); 708 Pattern.reset(); 709 } 710 return Pattern; 711 } 712 713 static bool parseDiagnosticLevelMask(StringRef FlagName, 714 const std::vector<std::string> &Levels, 715 DiagnosticsEngine *Diags, 716 DiagnosticLevelMask &M) { 717 bool Success = true; 718 for (const auto &Level : Levels) { 719 DiagnosticLevelMask const PM = 720 llvm::StringSwitch<DiagnosticLevelMask>(Level) 721 .Case("note", DiagnosticLevelMask::Note) 722 .Case("remark", DiagnosticLevelMask::Remark) 723 .Case("warning", DiagnosticLevelMask::Warning) 724 .Case("error", DiagnosticLevelMask::Error) 725 .Default(DiagnosticLevelMask::None); 726 if (PM == DiagnosticLevelMask::None) { 727 Success = false; 728 if (Diags) 729 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 730 } 731 M = M | PM; 732 } 733 return Success; 734 } 735 736 static void parseSanitizerKinds(StringRef FlagName, 737 const std::vector<std::string> &Sanitizers, 738 DiagnosticsEngine &Diags, SanitizerSet &S) { 739 for (const auto &Sanitizer : Sanitizers) { 740 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 741 if (K == SanitizerMask()) 742 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 743 else 744 S.set(K, true); 745 } 746 } 747 748 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 749 ArgList &Args, DiagnosticsEngine &D, 750 XRayInstrSet &S) { 751 llvm::SmallVector<StringRef, 2> BundleParts; 752 llvm::SplitString(Bundle, BundleParts, ","); 753 for (const auto &B : BundleParts) { 754 auto Mask = parseXRayInstrValue(B); 755 if (Mask == XRayInstrKind::None) 756 if (B != "none") 757 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 758 else 759 S.Mask = Mask; 760 else if (Mask == XRayInstrKind::All) 761 S.Mask = Mask; 762 else 763 S.set(Mask, true); 764 } 765 } 766 767 // Set the profile kind for fprofile-instrument. 768 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 769 DiagnosticsEngine &Diags) { 770 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 771 if (A == nullptr) 772 return; 773 StringRef S = A->getValue(); 774 unsigned I = llvm::StringSwitch<unsigned>(S) 775 .Case("none", CodeGenOptions::ProfileNone) 776 .Case("clang", CodeGenOptions::ProfileClangInstr) 777 .Case("llvm", CodeGenOptions::ProfileIRInstr) 778 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 779 .Default(~0U); 780 if (I == ~0U) { 781 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 782 << S; 783 return; 784 } 785 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 786 Opts.setProfileInstr(Instrumentor); 787 } 788 789 // Set the profile kind using fprofile-instrument-use-path. 790 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 791 const Twine &ProfileName) { 792 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 793 // In error, return silently and let Clang PGOUse report the error message. 794 if (auto E = ReaderOrErr.takeError()) { 795 llvm::consumeError(std::move(E)); 796 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 797 return; 798 } 799 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 800 std::move(ReaderOrErr.get()); 801 if (PGOReader->isIRLevelProfile()) { 802 if (PGOReader->hasCSIRLevelProfile()) 803 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 804 else 805 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 806 } else 807 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 808 } 809 810 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 811 DiagnosticsEngine &Diags, 812 const TargetOptions &TargetOpts, 813 const FrontendOptions &FrontendOpts) { 814 bool Success = true; 815 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 816 817 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 818 // TODO: This could be done in Driver 819 unsigned MaxOptLevel = 3; 820 if (OptimizationLevel > MaxOptLevel) { 821 // If the optimization level is not supported, fall back on the default 822 // optimization 823 Diags.Report(diag::warn_drv_optimization_value) 824 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 825 OptimizationLevel = MaxOptLevel; 826 } 827 Opts.OptimizationLevel = OptimizationLevel; 828 829 // At O0 we want to fully disable inlining outside of cases marked with 830 // 'alwaysinline' that are required for correctness. 831 Opts.setInlining((Opts.OptimizationLevel == 0) 832 ? CodeGenOptions::OnlyAlwaysInlining 833 : CodeGenOptions::NormalInlining); 834 // Explicit inlining flags can disable some or all inlining even at 835 // optimization levels above zero. 836 if (Arg *InlineArg = Args.getLastArg( 837 options::OPT_finline_functions, options::OPT_finline_hint_functions, 838 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 839 if (Opts.OptimizationLevel > 0) { 840 const Option &InlineOpt = InlineArg->getOption(); 841 if (InlineOpt.matches(options::OPT_finline_functions)) 842 Opts.setInlining(CodeGenOptions::NormalInlining); 843 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 844 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 845 else 846 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 847 } 848 } 849 850 Opts.DebugPassManager = 851 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 852 /* Default */ false); 853 854 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 855 StringRef Name = A->getValue(); 856 if (Name == "Accelerate") 857 Opts.setVecLib(CodeGenOptions::Accelerate); 858 else if (Name == "libmvec") 859 Opts.setVecLib(CodeGenOptions::LIBMVEC); 860 else if (Name == "MASSV") 861 Opts.setVecLib(CodeGenOptions::MASSV); 862 else if (Name == "SVML") 863 Opts.setVecLib(CodeGenOptions::SVML); 864 else if (Name == "none") 865 Opts.setVecLib(CodeGenOptions::NoLibrary); 866 else 867 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 868 } 869 870 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 871 unsigned Val = 872 llvm::StringSwitch<unsigned>(A->getValue()) 873 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 874 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 875 .Case("constructor", codegenoptions::DebugInfoConstructor) 876 .Case("limited", codegenoptions::LimitedDebugInfo) 877 .Case("standalone", codegenoptions::FullDebugInfo) 878 .Case("unused-types", codegenoptions::UnusedTypeInfo) 879 .Default(~0U); 880 if (Val == ~0U) 881 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 882 << A->getValue(); 883 else 884 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 885 } 886 // If -fuse-ctor-homing is set and limited debug info is already on, then use 887 // constructor homing. 888 if (Args.getLastArg(OPT_fuse_ctor_homing)) 889 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 890 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 891 892 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 893 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 894 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 895 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 896 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 897 .Default(~0U); 898 if (Val == ~0U) 899 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 900 << A->getValue(); 901 else 902 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 903 } 904 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 905 Opts.DebugColumnInfo = !Args.hasArg(OPT_gno_column_info); 906 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 907 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 908 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 909 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 910 Opts.VirtualFunctionElimination = 911 Args.hasArg(OPT_fvirtual_function_elimination); 912 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 913 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 914 Opts.SplitDwarfOutput = 915 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 916 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 917 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 918 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 919 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 920 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 921 Opts.ForceDwarfFrameSection = Args.hasArg(OPT_fforce_dwarf_frame); 922 923 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 924 auto Split = StringRef(Arg).split('='); 925 Opts.DebugPrefixMap.insert( 926 {std::string(Split.first), std::string(Split.second)}); 927 } 928 929 if (const Arg *A = 930 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 931 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 932 933 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 934 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 935 936 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 937 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 938 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 939 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 940 941 llvm::Triple T(TargetOpts.Triple); 942 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 943 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 944 Opts.EmitCallSiteInfo = true; 945 946 Opts.ValueTrackingVariableLocations = 947 Args.hasArg(OPT_fexperimental_debug_variable_locations); 948 949 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 950 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 951 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 952 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 953 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 954 OPT_fuse_register_sized_bitfield_access); 955 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 956 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 957 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 958 Args.hasArg(OPT_new_struct_path_tbaa); 959 Opts.FineGrainedBitfieldAccesses = 960 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 961 OPT_fno_fine_grained_bitfield_accesses, false); 962 Opts.DwarfDebugFlags = 963 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 964 Opts.RecordCommandLine = 965 std::string(Args.getLastArgValue(OPT_record_command_line)); 966 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 967 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 968 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 969 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 970 Opts.OptimizeSize = getOptimizationLevelSize(Args); 971 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 972 Args.hasArg(OPT_ffreestanding)); 973 if (Opts.SimplifyLibCalls) 974 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 975 Opts.UnrollLoops = 976 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 977 (Opts.OptimizationLevel > 1)); 978 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 979 980 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 981 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 982 Opts.SampleProfileFile = 983 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 984 Opts.DebugInfoForProfiling = Args.hasFlag( 985 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 986 Opts.DebugNameTable = static_cast<unsigned>( 987 Args.hasArg(OPT_ggnu_pubnames) 988 ? llvm::DICompileUnit::DebugNameTableKind::GNU 989 : Args.hasArg(OPT_gpubnames) 990 ? llvm::DICompileUnit::DebugNameTableKind::Default 991 : llvm::DICompileUnit::DebugNameTableKind::None); 992 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 993 994 setPGOInstrumentor(Opts, Args, Diags); 995 Opts.AtomicProfileUpdate = Args.hasArg(OPT_fprofile_update_EQ); 996 Opts.InstrProfileOutput = 997 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 998 Opts.ProfileInstrumentUsePath = 999 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 1000 if (!Opts.ProfileInstrumentUsePath.empty()) 1001 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1002 Opts.ProfileRemappingFile = 1003 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 1004 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 1005 Diags.Report(diag::err_drv_argument_only_allowed_with) 1006 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 1007 << "-fexperimental-new-pass-manager"; 1008 } 1009 1010 Opts.CoverageMapping = 1011 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 1012 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 1013 Opts.AsmVerbose = !Args.hasArg(OPT_fno_verbose_asm); 1014 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 1015 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1016 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 1017 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 1018 Opts.RegisterGlobalDtorsWithAtExit = 1019 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 1020 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 1021 Opts.CodeModel = TargetOpts.CodeModel; 1022 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 1023 1024 // Handle -mframe-pointer option. 1025 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 1026 CodeGenOptions::FramePointerKind FP; 1027 StringRef Name = A->getValue(); 1028 bool ValidFP = true; 1029 if (Name == "none") 1030 FP = CodeGenOptions::FramePointerKind::None; 1031 else if (Name == "non-leaf") 1032 FP = CodeGenOptions::FramePointerKind::NonLeaf; 1033 else if (Name == "all") 1034 FP = CodeGenOptions::FramePointerKind::All; 1035 else { 1036 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1037 Success = false; 1038 ValidFP = false; 1039 } 1040 if (ValidFP) 1041 Opts.setFramePointer(FP); 1042 } 1043 1044 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1045 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 1046 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 1047 Opts.NoEscapingBlockTailCalls = 1048 Args.hasArg(OPT_fno_escaping_block_tail_calls); 1049 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 1050 Opts.LimitFloatPrecision = 1051 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 1052 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 1053 Opts.StrictFloatCastOverflow = 1054 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 1055 1056 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_fno_zero_initialized_in_bss); 1057 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 1058 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 1059 Opts.SmallDataLimit = 1060 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 1061 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 1062 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 1063 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 1064 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 1065 Opts.IncrementalLinkerCompatible = 1066 Args.hasArg(OPT_mincremental_linker_compatible); 1067 Opts.PIECopyRelocations = 1068 Args.hasArg(OPT_mpie_copy_relocations); 1069 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 1070 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 1071 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 1072 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 1073 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 1074 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 1075 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 1076 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 1077 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 1078 Opts.ThreadModel = 1079 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 1080 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 1081 Diags.Report(diag::err_drv_invalid_value) 1082 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 1083 << Opts.ThreadModel; 1084 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 1085 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 1086 1087 Opts.BBSections = 1088 std::string(Args.getLastArgValue(OPT_fbasic_block_sections_EQ, "none")); 1089 1090 // Basic Block Sections implies Function Sections. 1091 Opts.FunctionSections = 1092 Args.hasArg(OPT_ffunction_sections) || 1093 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 1094 1095 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 1096 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 1097 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 1098 Opts.UniqueBasicBlockSectionNames = 1099 Args.hasArg(OPT_funique_basic_block_section_names); 1100 Opts.UniqueInternalLinkageNames = 1101 Args.hasArg(OPT_funique_internal_linkage_names); 1102 1103 Opts.SplitMachineFunctions = Args.hasArg(OPT_fsplit_machine_functions); 1104 1105 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 1106 1107 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 1108 1109 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 1110 1111 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 1112 1113 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1114 Opts.PrepareForThinLTO = false; 1115 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1116 StringRef S = A->getValue(); 1117 if (S == "thin") 1118 Opts.PrepareForThinLTO = true; 1119 else if (S != "full") 1120 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1121 } 1122 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 1123 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 1124 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1125 if (IK.getLanguage() != Language::LLVM_IR) 1126 Diags.Report(diag::err_drv_argument_only_allowed_with) 1127 << A->getAsString(Args) << "-x ir"; 1128 Opts.ThinLTOIndexFile = 1129 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1130 } 1131 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1132 Opts.SaveTempsFilePrefix = 1133 llvm::StringSwitch<std::string>(A->getValue()) 1134 .Case("obj", FrontendOpts.OutputFile) 1135 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 1136 1137 Opts.ThinLinkBitcodeFile = 1138 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 1139 1140 // The memory profile runtime appends the pid to make this name more unique. 1141 const char *MemProfileBasename = "memprof.profraw"; 1142 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1143 SmallString<128> Path( 1144 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1145 llvm::sys::path::append(Path, MemProfileBasename); 1146 Opts.MemoryProfileOutput = std::string(Path); 1147 } else if (Args.hasArg(OPT_fmemory_profile)) 1148 Opts.MemoryProfileOutput = MemProfileBasename; 1149 1150 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 1151 1152 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1153 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1154 1155 Opts.PreferVectorWidth = 1156 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1157 1158 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1159 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1160 1161 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1162 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1163 1164 Opts.EmitGcovNotes = Args.hasArg(OPT_ftest_coverage); 1165 Opts.EmitGcovArcs = Args.hasArg(OPT_fprofile_arcs); 1166 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1167 Opts.CoverageDataFile = 1168 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1169 Opts.CoverageNotesFile = 1170 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1171 Opts.ProfileFilterFiles = 1172 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1173 Opts.ProfileExcludeFiles = 1174 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1175 if (Args.hasArg(OPT_coverage_version_EQ)) { 1176 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1177 if (CoverageVersion.size() != 4) { 1178 Diags.Report(diag::err_drv_invalid_value) 1179 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1180 << CoverageVersion; 1181 } else { 1182 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1183 } 1184 } 1185 } 1186 // Handle -fembed-bitcode option. 1187 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1188 StringRef Name = A->getValue(); 1189 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1190 .Case("off", CodeGenOptions::Embed_Off) 1191 .Case("all", CodeGenOptions::Embed_All) 1192 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1193 .Case("marker", CodeGenOptions::Embed_Marker) 1194 .Default(~0U); 1195 if (Model == ~0U) { 1196 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1197 Success = false; 1198 } else 1199 Opts.setEmbedBitcode( 1200 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1201 } 1202 // FIXME: For backend options that are not yet recorded as function 1203 // attributes in the IR, keep track of them so we can embed them in a 1204 // separate data section and use them when building the bitcode. 1205 for (const auto &A : Args) { 1206 // Do not encode output and input. 1207 if (A->getOption().getID() == options::OPT_o || 1208 A->getOption().getID() == options::OPT_INPUT || 1209 A->getOption().getID() == options::OPT_x || 1210 A->getOption().getID() == options::OPT_fembed_bitcode || 1211 A->getOption().matches(options::OPT_W_Group)) 1212 continue; 1213 ArgStringList ASL; 1214 A->render(Args, ASL); 1215 for (const auto &arg : ASL) { 1216 StringRef ArgStr(arg); 1217 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1218 // using \00 to separate each commandline options. 1219 Opts.CmdArgs.push_back('\0'); 1220 } 1221 } 1222 1223 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1224 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1225 Opts.InstrumentFunctionsAfterInlining = 1226 Args.hasArg(OPT_finstrument_functions_after_inlining); 1227 Opts.InstrumentFunctionEntryBare = 1228 Args.hasArg(OPT_finstrument_function_entry_bare); 1229 1230 Opts.XRayInstructionThreshold = 1231 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1232 Opts.XRayTotalFunctionGroups = 1233 getLastArgIntValue(Args, OPT_fxray_function_groups, 1, Diags); 1234 Opts.XRaySelectedFunctionGroup = 1235 getLastArgIntValue(Args, OPT_fxray_selected_function_group, 0, Diags); 1236 1237 auto XRayInstrBundles = 1238 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1239 if (XRayInstrBundles.empty()) 1240 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1241 else 1242 for (const auto &A : XRayInstrBundles) 1243 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1244 Diags, Opts.XRayInstrumentationBundle); 1245 1246 Opts.PatchableFunctionEntryCount = 1247 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1248 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1249 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1250 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1251 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1252 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1253 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1254 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1255 1256 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1257 StringRef Name = A->getValue(); 1258 if (Name == "full") { 1259 Opts.CFProtectionReturn = 1; 1260 Opts.CFProtectionBranch = 1; 1261 } else if (Name == "return") 1262 Opts.CFProtectionReturn = 1; 1263 else if (Name == "branch") 1264 Opts.CFProtectionBranch = 1; 1265 else if (Name != "none") { 1266 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1267 Success = false; 1268 } 1269 } 1270 1271 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections_EQ)) { 1272 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1273 .Case("none", llvm::DebugCompressionType::None) 1274 .Case("zlib", llvm::DebugCompressionType::Z) 1275 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1276 .Default(llvm::DebugCompressionType::None); 1277 Opts.setCompressDebugSections(DCT); 1278 } 1279 1280 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1281 Opts.DebugCompilationDir = 1282 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1283 for (auto *A : 1284 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1285 CodeGenOptions::BitcodeFileToLink F; 1286 F.Filename = A->getValue(); 1287 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1288 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1289 // When linking CUDA bitcode, propagate function attributes so that 1290 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1291 F.PropagateAttrs = true; 1292 F.Internalize = true; 1293 } 1294 Opts.LinkBitcodeFiles.push_back(F); 1295 } 1296 Opts.SanitizeCoverageType = 1297 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1298 Opts.SanitizeCoverageIndirectCalls = 1299 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1300 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1301 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1302 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1303 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1304 Opts.SanitizeCoverage8bitCounters = 1305 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1306 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1307 Opts.SanitizeCoverageTracePCGuard = 1308 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1309 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1310 Opts.SanitizeCoverageInline8bitCounters = 1311 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1312 Opts.SanitizeCoverageInlineBoolFlag = 1313 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1314 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1315 Opts.SanitizeCoverageStackDepth = 1316 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1317 Opts.SanitizeCoverageAllowlistFiles = 1318 Args.getAllArgValues(OPT_fsanitize_coverage_allowlist); 1319 Opts.SanitizeCoverageBlocklistFiles = 1320 Args.getAllArgValues(OPT_fsanitize_coverage_blocklist); 1321 Opts.SanitizeMemoryTrackOrigins = 1322 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1323 Opts.SanitizeMemoryUseAfterDtor = 1324 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1325 OPT_fno_sanitize_memory_use_after_dtor, 1326 false); 1327 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1328 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1329 Opts.SanitizeCfiICallGeneralizePointers = 1330 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1331 Opts.SanitizeCfiCanonicalJumpTables = 1332 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1333 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1334 if (Arg *A = Args.getLastArg( 1335 OPT_fsanitize_address_poison_custom_array_cookie, 1336 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1337 Opts.SanitizeAddressPoisonCustomArrayCookie = 1338 A->getOption().getID() == 1339 OPT_fsanitize_address_poison_custom_array_cookie; 1340 } 1341 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1342 OPT_fno_sanitize_address_use_after_scope)) { 1343 Opts.SanitizeAddressUseAfterScope = 1344 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1345 } 1346 Opts.SanitizeAddressGlobalsDeadStripping = 1347 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1348 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1349 OPT_fno_sanitize_address_use_odr_indicator)) { 1350 Opts.SanitizeAddressUseOdrIndicator = 1351 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1352 } 1353 Opts.SSPBufferSize = 1354 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1355 1356 Opts.StackProtectorGuard = 1357 std::string(Args.getLastArgValue(OPT_mstack_protector_guard_EQ)); 1358 1359 if (Arg *A = Args.getLastArg(OPT_mstack_protector_guard_offset_EQ)) { 1360 StringRef Val = A->getValue(); 1361 unsigned Offset = Opts.StackProtectorGuardOffset; 1362 Val.getAsInteger(10, Offset); 1363 Opts.StackProtectorGuardOffset = Offset; 1364 } 1365 1366 Opts.StackProtectorGuardReg = 1367 std::string(Args.getLastArgValue(OPT_mstack_protector_guard_reg_EQ, 1368 "none")); 1369 1370 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1371 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1372 StringRef Val = A->getValue(); 1373 unsigned StackAlignment = Opts.StackAlignment; 1374 Val.getAsInteger(10, StackAlignment); 1375 Opts.StackAlignment = StackAlignment; 1376 } 1377 1378 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1379 StringRef Val = A->getValue(); 1380 unsigned StackProbeSize = Opts.StackProbeSize; 1381 Val.getAsInteger(0, StackProbeSize); 1382 Opts.StackProbeSize = StackProbeSize; 1383 } 1384 1385 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1386 1387 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1388 1389 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1390 StringRef Name = A->getValue(); 1391 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1392 .Case("legacy", CodeGenOptions::Legacy) 1393 .Case("non-legacy", CodeGenOptions::NonLegacy) 1394 .Case("mixed", CodeGenOptions::Mixed) 1395 .Default(~0U); 1396 if (Method == ~0U) { 1397 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1398 Success = false; 1399 } else { 1400 Opts.setObjCDispatchMethod( 1401 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1402 } 1403 } 1404 1405 1406 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1407 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1408 1409 if (Args.getLastArg(OPT_femulated_tls) || 1410 Args.getLastArg(OPT_fno_emulated_tls)) { 1411 Opts.ExplicitEmulatedTLS = true; 1412 Opts.EmulatedTLS = 1413 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1414 } 1415 1416 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1417 StringRef Name = A->getValue(); 1418 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1419 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1420 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1421 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1422 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1423 .Default(~0U); 1424 if (Model == ~0U) { 1425 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1426 Success = false; 1427 } else { 1428 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1429 } 1430 } 1431 1432 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1433 1434 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1435 StringRef Val = A->getValue(); 1436 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1437 if (!Opts.FPDenormalMode.isValid()) 1438 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1439 } 1440 1441 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1442 StringRef Val = A->getValue(); 1443 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1444 if (!Opts.FP32DenormalMode.isValid()) 1445 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1446 } 1447 1448 // X86_32 has -fppc-struct-return and -freg-struct-return. 1449 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1450 if (Arg *A = 1451 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1452 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1453 // TODO: We might want to consider enabling these options on AIX in the 1454 // future. 1455 if (T.isOSAIX()) 1456 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1457 << A->getSpelling() << T.str(); 1458 1459 const Option &O = A->getOption(); 1460 if (O.matches(OPT_fpcc_struct_return) || 1461 O.matches(OPT_maix_struct_return)) { 1462 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1463 } else { 1464 assert(O.matches(OPT_freg_struct_return) || 1465 O.matches(OPT_msvr4_struct_return)); 1466 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1467 } 1468 } 1469 1470 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1471 !Args.hasArg(OPT_fvisibility))) 1472 Opts.IgnoreXCOFFVisibility = 1; 1473 1474 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1475 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1476 bool NeedLocTracking = false; 1477 1478 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1479 if (!Opts.OptRecordFile.empty()) 1480 NeedLocTracking = true; 1481 1482 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1483 Opts.OptRecordPasses = A->getValue(); 1484 NeedLocTracking = true; 1485 } 1486 1487 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1488 Opts.OptRecordFormat = A->getValue(); 1489 NeedLocTracking = true; 1490 } 1491 1492 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1493 Opts.OptimizationRemarkPattern = 1494 GenerateOptimizationRemarkRegex(Diags, Args, A); 1495 NeedLocTracking = true; 1496 } 1497 1498 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1499 Opts.OptimizationRemarkMissedPattern = 1500 GenerateOptimizationRemarkRegex(Diags, Args, A); 1501 NeedLocTracking = true; 1502 } 1503 1504 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1505 Opts.OptimizationRemarkAnalysisPattern = 1506 GenerateOptimizationRemarkRegex(Diags, Args, A); 1507 NeedLocTracking = true; 1508 } 1509 1510 Opts.DiagnosticsWithHotness = 1511 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1512 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1513 bool UsingProfile = UsingSampleProfile || 1514 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1515 1516 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1517 // An IR file will contain PGO as metadata 1518 IK.getLanguage() != Language::LLVM_IR) 1519 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1520 << "-fdiagnostics-show-hotness"; 1521 1522 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1523 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1524 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1525 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1526 << "-fdiagnostics-hotness-threshold="; 1527 1528 // If the user requested to use a sample profile for PGO, then the 1529 // backend will need to track source location information so the profile 1530 // can be incorporated into the IR. 1531 if (UsingSampleProfile) 1532 NeedLocTracking = true; 1533 1534 // If the user requested a flag that requires source locations available in 1535 // the backend, make sure that the backend tracks source location information. 1536 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1537 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1538 1539 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1540 1541 // Parse -fsanitize-recover= arguments. 1542 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1543 parseSanitizerKinds("-fsanitize-recover=", 1544 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1545 Opts.SanitizeRecover); 1546 parseSanitizerKinds("-fsanitize-trap=", 1547 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1548 Opts.SanitizeTrap); 1549 1550 Opts.CudaGpuBinaryFileName = 1551 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1552 1553 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1554 1555 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1556 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1557 1558 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1559 1560 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1561 1562 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1563 1564 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1565 1566 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1567 1568 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1569 1570 Opts.SymbolPartition = 1571 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1572 1573 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1574 Opts.AAPCSBitfieldWidth = 1575 Args.hasFlag(OPT_AAPCSBitfieldWidth, OPT_ForceNoAAPCSBitfieldWidth, true); 1576 1577 Opts.PassByValueIsNoAlias = Args.hasArg(OPT_fpass_by_value_is_noalias); 1578 1579 return Success; 1580 } 1581 1582 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1583 ArgList &Args) { 1584 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1585 Opts.Targets = Args.getAllArgValues(OPT_MT); 1586 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1587 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1588 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1589 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1590 Opts.HeaderIncludeOutputFile = 1591 std::string(Args.getLastArgValue(OPT_header_include_file)); 1592 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1593 if (Args.hasArg(OPT_show_includes)) { 1594 // Writing both /showIncludes and preprocessor output to stdout 1595 // would produce interleaved output, so use stderr for /showIncludes. 1596 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1597 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1598 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1599 else 1600 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1601 } else { 1602 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1603 } 1604 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1605 Opts.ModuleDependencyOutputDir = 1606 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1607 if (Args.hasArg(OPT_MV)) 1608 Opts.OutputFormat = DependencyOutputFormat::NMake; 1609 // Add sanitizer blacklists as extra dependencies. 1610 // They won't be discovered by the regular preprocessor, so 1611 // we let make / ninja to know about this implicit dependency. 1612 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1613 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1614 StringRef Val = A->getValue(); 1615 if (Val.find('=') == StringRef::npos) 1616 Opts.ExtraDeps.push_back(std::string(Val)); 1617 } 1618 if (Opts.IncludeSystemHeaders) { 1619 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1620 StringRef Val = A->getValue(); 1621 if (Val.find('=') == StringRef::npos) 1622 Opts.ExtraDeps.push_back(std::string(Val)); 1623 } 1624 } 1625 } 1626 1627 // Propagate the extra dependencies. 1628 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1629 Opts.ExtraDeps.push_back(A->getValue()); 1630 } 1631 1632 // Only the -fmodule-file=<file> form. 1633 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1634 StringRef Val = A->getValue(); 1635 if (Val.find('=') == StringRef::npos) 1636 Opts.ExtraDeps.push_back(std::string(Val)); 1637 } 1638 } 1639 1640 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1641 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1642 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1643 // Support both clang's -f[no-]color-diagnostics and gcc's 1644 // -f[no-]diagnostics-colors[=never|always|auto]. 1645 enum { 1646 Colors_On, 1647 Colors_Off, 1648 Colors_Auto 1649 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1650 for (auto *A : Args) { 1651 const Option &O = A->getOption(); 1652 if (O.matches(options::OPT_fcolor_diagnostics) || 1653 O.matches(options::OPT_fdiagnostics_color)) { 1654 ShowColors = Colors_On; 1655 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1656 O.matches(options::OPT_fno_diagnostics_color)) { 1657 ShowColors = Colors_Off; 1658 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1659 StringRef Value(A->getValue()); 1660 if (Value == "always") 1661 ShowColors = Colors_On; 1662 else if (Value == "never") 1663 ShowColors = Colors_Off; 1664 else if (Value == "auto") 1665 ShowColors = Colors_Auto; 1666 } 1667 } 1668 return ShowColors == Colors_On || 1669 (ShowColors == Colors_Auto && 1670 llvm::sys::Process::StandardErrHasColors()); 1671 } 1672 1673 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1674 DiagnosticsEngine *Diags) { 1675 bool Success = true; 1676 for (const auto &Prefix : VerifyPrefixes) { 1677 // Every prefix must start with a letter and contain only alphanumeric 1678 // characters, hyphens, and underscores. 1679 auto BadChar = llvm::find_if(Prefix, [](char C) { 1680 return !isAlphanumeric(C) && C != '-' && C != '_'; 1681 }); 1682 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1683 Success = false; 1684 if (Diags) { 1685 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1686 Diags->Report(diag::note_drv_verify_prefix_spelling); 1687 } 1688 } 1689 } 1690 return Success; 1691 } 1692 1693 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1694 DiagnosticsEngine *Diags, 1695 bool DefaultDiagColor) { 1696 bool Success = true; 1697 1698 Opts.DiagnosticLogFile = 1699 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1700 if (Arg *A = 1701 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1702 Opts.DiagnosticSerializationFile = A->getValue(); 1703 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1704 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1705 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1706 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1707 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1708 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1709 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1710 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1711 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1712 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1713 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1714 1715 // Default behavior is to not to show note include stacks. 1716 Opts.ShowNoteIncludeStack = false; 1717 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1718 OPT_fno_diagnostics_show_note_include_stack)) 1719 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1720 Opts.ShowNoteIncludeStack = true; 1721 1722 StringRef ShowOverloads = 1723 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1724 if (ShowOverloads == "best") 1725 Opts.setShowOverloads(Ovl_Best); 1726 else if (ShowOverloads == "all") 1727 Opts.setShowOverloads(Ovl_All); 1728 else { 1729 Success = false; 1730 if (Diags) 1731 Diags->Report(diag::err_drv_invalid_value) 1732 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1733 << ShowOverloads; 1734 } 1735 1736 StringRef ShowCategory = 1737 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1738 if (ShowCategory == "none") 1739 Opts.ShowCategories = 0; 1740 else if (ShowCategory == "id") 1741 Opts.ShowCategories = 1; 1742 else if (ShowCategory == "name") 1743 Opts.ShowCategories = 2; 1744 else { 1745 Success = false; 1746 if (Diags) 1747 Diags->Report(diag::err_drv_invalid_value) 1748 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1749 << ShowCategory; 1750 } 1751 1752 StringRef Format = 1753 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1754 if (Format == "clang") 1755 Opts.setFormat(DiagnosticOptions::Clang); 1756 else if (Format == "msvc") 1757 Opts.setFormat(DiagnosticOptions::MSVC); 1758 else if (Format == "msvc-fallback") { 1759 Opts.setFormat(DiagnosticOptions::MSVC); 1760 Opts.CLFallbackMode = true; 1761 } else if (Format == "vi") 1762 Opts.setFormat(DiagnosticOptions::Vi); 1763 else { 1764 Success = false; 1765 if (Diags) 1766 Diags->Report(diag::err_drv_invalid_value) 1767 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1768 << Format; 1769 } 1770 1771 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1772 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1773 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1774 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1775 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1776 if (Args.hasArg(OPT_verify)) 1777 Opts.VerifyPrefixes.push_back("expected"); 1778 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1779 // then sort it to prepare for fast lookup using std::binary_search. 1780 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1781 Opts.VerifyDiagnostics = false; 1782 Success = false; 1783 } 1784 else 1785 llvm::sort(Opts.VerifyPrefixes); 1786 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1787 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1788 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1789 Diags, DiagMask); 1790 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1791 DiagMask = DiagnosticLevelMask::All; 1792 Opts.setVerifyIgnoreUnexpected(DiagMask); 1793 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1794 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1795 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1796 Opts.MacroBacktraceLimit = 1797 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1798 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1799 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1800 Args, OPT_ftemplate_backtrace_limit, 1801 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1802 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1803 Args, OPT_fconstexpr_backtrace_limit, 1804 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1805 Opts.SpellCheckingLimit = getLastArgIntValue( 1806 Args, OPT_fspell_checking_limit, 1807 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1808 Opts.SnippetLineLimit = getLastArgIntValue( 1809 Args, OPT_fcaret_diagnostics_max_lines, 1810 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1811 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1812 DiagnosticOptions::DefaultTabStop, Diags); 1813 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1814 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1815 if (Diags) 1816 Diags->Report(diag::warn_ignoring_ftabstop_value) 1817 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1818 } 1819 Opts.MessageLength = 1820 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1821 1822 Opts.UndefPrefixes = Args.getAllArgValues(OPT_Wundef_prefix_EQ); 1823 1824 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1825 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1826 1827 return Success; 1828 } 1829 1830 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1831 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1832 } 1833 1834 /// Parse the argument to the -ftest-module-file-extension 1835 /// command-line argument. 1836 /// 1837 /// \returns true on error, false on success. 1838 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1839 std::string &BlockName, 1840 unsigned &MajorVersion, 1841 unsigned &MinorVersion, 1842 bool &Hashed, 1843 std::string &UserInfo) { 1844 SmallVector<StringRef, 5> Args; 1845 Arg.split(Args, ':', 5); 1846 if (Args.size() < 5) 1847 return true; 1848 1849 BlockName = std::string(Args[0]); 1850 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1851 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1852 if (Args[3].getAsInteger(2, Hashed)) return true; 1853 if (Args.size() > 4) 1854 UserInfo = std::string(Args[4]); 1855 return false; 1856 } 1857 1858 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1859 DiagnosticsEngine &Diags, 1860 bool &IsHeaderFile) { 1861 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1862 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1863 switch (A->getOption().getID()) { 1864 default: 1865 llvm_unreachable("Invalid option in group!"); 1866 case OPT_ast_list: 1867 Opts.ProgramAction = frontend::ASTDeclList; break; 1868 case OPT_ast_dump_all_EQ: 1869 case OPT_ast_dump_EQ: { 1870 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1871 .CaseLower("default", ADOF_Default) 1872 .CaseLower("json", ADOF_JSON) 1873 .Default(std::numeric_limits<unsigned>::max()); 1874 1875 if (Val != std::numeric_limits<unsigned>::max()) 1876 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1877 else { 1878 Diags.Report(diag::err_drv_invalid_value) 1879 << A->getAsString(Args) << A->getValue(); 1880 Opts.ASTDumpFormat = ADOF_Default; 1881 } 1882 LLVM_FALLTHROUGH; 1883 } 1884 case OPT_ast_dump: 1885 case OPT_ast_dump_all: 1886 case OPT_ast_dump_lookups: 1887 case OPT_ast_dump_decl_types: 1888 Opts.ProgramAction = frontend::ASTDump; break; 1889 case OPT_ast_print: 1890 Opts.ProgramAction = frontend::ASTPrint; break; 1891 case OPT_ast_view: 1892 Opts.ProgramAction = frontend::ASTView; break; 1893 case OPT_compiler_options_dump: 1894 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1895 case OPT_dump_raw_tokens: 1896 Opts.ProgramAction = frontend::DumpRawTokens; break; 1897 case OPT_dump_tokens: 1898 Opts.ProgramAction = frontend::DumpTokens; break; 1899 case OPT_S: 1900 Opts.ProgramAction = frontend::EmitAssembly; break; 1901 case OPT_emit_llvm_bc: 1902 Opts.ProgramAction = frontend::EmitBC; break; 1903 case OPT_emit_html: 1904 Opts.ProgramAction = frontend::EmitHTML; break; 1905 case OPT_emit_llvm: 1906 Opts.ProgramAction = frontend::EmitLLVM; break; 1907 case OPT_emit_llvm_only: 1908 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1909 case OPT_emit_codegen_only: 1910 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1911 case OPT_emit_obj: 1912 Opts.ProgramAction = frontend::EmitObj; break; 1913 case OPT_fixit_EQ: 1914 Opts.FixItSuffix = A->getValue(); 1915 LLVM_FALLTHROUGH; 1916 case OPT_fixit: 1917 Opts.ProgramAction = frontend::FixIt; break; 1918 case OPT_emit_module: 1919 Opts.ProgramAction = frontend::GenerateModule; break; 1920 case OPT_emit_module_interface: 1921 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1922 case OPT_emit_header_module: 1923 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1924 case OPT_emit_pch: 1925 Opts.ProgramAction = frontend::GeneratePCH; break; 1926 case OPT_emit_interface_stubs: { 1927 StringRef ArgStr = 1928 Args.hasArg(OPT_interface_stub_version_EQ) 1929 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1930 : "experimental-ifs-v2"; 1931 if (ArgStr == "experimental-yaml-elf-v1" || 1932 ArgStr == "experimental-ifs-v1" || 1933 ArgStr == "experimental-tapi-elf-v1") { 1934 std::string ErrorMessage = 1935 "Invalid interface stub format: " + ArgStr.str() + 1936 " is deprecated."; 1937 Diags.Report(diag::err_drv_invalid_value) 1938 << "Must specify a valid interface stub format type, ie: " 1939 "-interface-stub-version=experimental-ifs-v2" 1940 << ErrorMessage; 1941 } else if (!ArgStr.startswith("experimental-ifs-")) { 1942 std::string ErrorMessage = 1943 "Invalid interface stub format: " + ArgStr.str() + "."; 1944 Diags.Report(diag::err_drv_invalid_value) 1945 << "Must specify a valid interface stub format type, ie: " 1946 "-interface-stub-version=experimental-ifs-v2" 1947 << ErrorMessage; 1948 } else { 1949 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1950 } 1951 break; 1952 } 1953 case OPT_init_only: 1954 Opts.ProgramAction = frontend::InitOnly; break; 1955 case OPT_fsyntax_only: 1956 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1957 case OPT_module_file_info: 1958 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1959 case OPT_verify_pch: 1960 Opts.ProgramAction = frontend::VerifyPCH; break; 1961 case OPT_print_preamble: 1962 Opts.ProgramAction = frontend::PrintPreamble; break; 1963 case OPT_E: 1964 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1965 case OPT_templight_dump: 1966 Opts.ProgramAction = frontend::TemplightDump; break; 1967 case OPT_rewrite_macros: 1968 Opts.ProgramAction = frontend::RewriteMacros; break; 1969 case OPT_rewrite_objc: 1970 Opts.ProgramAction = frontend::RewriteObjC; break; 1971 case OPT_rewrite_test: 1972 Opts.ProgramAction = frontend::RewriteTest; break; 1973 case OPT_analyze: 1974 Opts.ProgramAction = frontend::RunAnalysis; break; 1975 case OPT_migrate: 1976 Opts.ProgramAction = frontend::MigrateSource; break; 1977 case OPT_Eonly: 1978 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1979 case OPT_print_dependency_directives_minimized_source: 1980 Opts.ProgramAction = 1981 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1982 break; 1983 } 1984 } 1985 1986 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1987 Opts.Plugins.emplace_back(A->getValue(0)); 1988 Opts.ProgramAction = frontend::PluginAction; 1989 Opts.ActionName = A->getValue(); 1990 } 1991 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1992 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1993 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1994 1995 for (const std::string &Arg : 1996 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1997 std::string BlockName; 1998 unsigned MajorVersion; 1999 unsigned MinorVersion; 2000 bool Hashed; 2001 std::string UserInfo; 2002 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2003 MinorVersion, Hashed, UserInfo)) { 2004 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2005 2006 continue; 2007 } 2008 2009 // Add the testing module file extension. 2010 Opts.ModuleFileExtensions.push_back( 2011 std::make_shared<TestModuleFileExtension>( 2012 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2013 } 2014 2015 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2016 Opts.CodeCompletionAt = 2017 ParsedSourceLocation::FromString(A->getValue()); 2018 if (Opts.CodeCompletionAt.FileName.empty()) 2019 Diags.Report(diag::err_drv_invalid_value) 2020 << A->getAsString(Args) << A->getValue(); 2021 } 2022 Opts.DisableFree = Args.hasArg(OPT_disable_free); 2023 2024 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 2025 Opts.Plugins = Args.getAllArgValues(OPT_load); 2026 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 2027 Opts.ShowHelp = Args.hasArg(OPT_help); 2028 Opts.ShowStats = Args.hasArg(OPT_print_stats); 2029 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 2030 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 2031 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 2032 Opts.TimeTraceGranularity = getLastArgIntValue( 2033 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 2034 Opts.ShowVersion = Args.hasArg(OPT_version); 2035 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 2036 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 2037 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 2038 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 2039 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 2040 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 2041 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2042 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2043 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 2044 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 2045 Opts.ASTDumpDeclTypes = Args.hasArg(OPT_ast_dump_decl_types); 2046 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 2047 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 2048 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 2049 // Only the -fmodule-file=<file> form. 2050 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2051 StringRef Val = A->getValue(); 2052 if (Val.find('=') == StringRef::npos) 2053 Opts.ModuleFiles.push_back(std::string(Val)); 2054 } 2055 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 2056 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 2057 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 2058 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 2059 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 2060 Opts.AllowPCMWithCompilerErrors = Args.hasArg(OPT_fallow_pcm_with_errors); 2061 2062 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2063 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2064 << "-emit-module"; 2065 2066 Opts.CodeCompleteOpts.IncludeMacros 2067 = Args.hasArg(OPT_code_completion_macros); 2068 Opts.CodeCompleteOpts.IncludeCodePatterns 2069 = Args.hasArg(OPT_code_completion_patterns); 2070 Opts.CodeCompleteOpts.IncludeGlobals 2071 = !Args.hasArg(OPT_no_code_completion_globals); 2072 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 2073 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 2074 Opts.CodeCompleteOpts.IncludeBriefComments 2075 = Args.hasArg(OPT_code_completion_brief_comments); 2076 Opts.CodeCompleteOpts.IncludeFixIts 2077 = Args.hasArg(OPT_code_completion_with_fixits); 2078 2079 Opts.OverrideRecordLayoutsFile = 2080 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 2081 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 2082 if (Args.hasArg(OPT_aux_target_cpu)) 2083 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2084 if (Args.hasArg(OPT_aux_target_feature)) 2085 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2086 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 2087 2088 Opts.MTMigrateDir = 2089 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 2090 Opts.ARCMTMigrateReportOut = 2091 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 2092 Opts.ARCMTMigrateEmitARCErrors 2093 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 2094 2095 Opts.ObjCMTWhiteListPath = 2096 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 2097 2098 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2099 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2100 Diags.Report(diag::err_drv_argument_not_allowed_with) 2101 << "ARC migration" << "ObjC migration"; 2102 } 2103 2104 InputKind DashX(Language::Unknown); 2105 if (const Arg *A = Args.getLastArg(OPT_x)) { 2106 StringRef XValue = A->getValue(); 2107 2108 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2109 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2110 bool Preprocessed = XValue.consume_back("-cpp-output"); 2111 bool ModuleMap = XValue.consume_back("-module-map"); 2112 IsHeaderFile = !Preprocessed && !ModuleMap && 2113 XValue != "precompiled-header" && 2114 XValue.consume_back("-header"); 2115 2116 // Principal languages. 2117 DashX = llvm::StringSwitch<InputKind>(XValue) 2118 .Case("c", Language::C) 2119 .Case("cl", Language::OpenCL) 2120 .Case("cuda", Language::CUDA) 2121 .Case("hip", Language::HIP) 2122 .Case("c++", Language::CXX) 2123 .Case("objective-c", Language::ObjC) 2124 .Case("objective-c++", Language::ObjCXX) 2125 .Case("renderscript", Language::RenderScript) 2126 .Default(Language::Unknown); 2127 2128 // "objc[++]-cpp-output" is an acceptable synonym for 2129 // "objective-c[++]-cpp-output". 2130 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2131 DashX = llvm::StringSwitch<InputKind>(XValue) 2132 .Case("objc", Language::ObjC) 2133 .Case("objc++", Language::ObjCXX) 2134 .Default(Language::Unknown); 2135 2136 // Some special cases cannot be combined with suffixes. 2137 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2138 DashX = llvm::StringSwitch<InputKind>(XValue) 2139 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2140 .Case("assembler-with-cpp", Language::Asm) 2141 .Cases("ast", "pcm", "precompiled-header", 2142 InputKind(Language::Unknown, InputKind::Precompiled)) 2143 .Case("ir", Language::LLVM_IR) 2144 .Default(Language::Unknown); 2145 2146 if (DashX.isUnknown()) 2147 Diags.Report(diag::err_drv_invalid_value) 2148 << A->getAsString(Args) << A->getValue(); 2149 2150 if (Preprocessed) 2151 DashX = DashX.getPreprocessed(); 2152 if (ModuleMap) 2153 DashX = DashX.withFormat(InputKind::ModuleMap); 2154 } 2155 2156 // '-' is the default input if none is given. 2157 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2158 Opts.Inputs.clear(); 2159 if (Inputs.empty()) 2160 Inputs.push_back("-"); 2161 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2162 InputKind IK = DashX; 2163 if (IK.isUnknown()) { 2164 IK = FrontendOptions::getInputKindForExtension( 2165 StringRef(Inputs[i]).rsplit('.').second); 2166 // FIXME: Warn on this? 2167 if (IK.isUnknown()) 2168 IK = Language::C; 2169 // FIXME: Remove this hack. 2170 if (i == 0) 2171 DashX = IK; 2172 } 2173 2174 bool IsSystem = false; 2175 2176 // The -emit-module action implicitly takes a module map. 2177 if (Opts.ProgramAction == frontend::GenerateModule && 2178 IK.getFormat() == InputKind::Source) { 2179 IK = IK.withFormat(InputKind::ModuleMap); 2180 IsSystem = Opts.IsSystemModule; 2181 } 2182 2183 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2184 } 2185 2186 return DashX; 2187 } 2188 2189 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2190 void *MainAddr) { 2191 std::string ClangExecutable = 2192 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2193 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2194 } 2195 2196 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2197 const std::string &WorkingDir) { 2198 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2199 Opts.Verbose = Args.hasArg(OPT_v); 2200 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2201 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2202 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2203 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2204 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2205 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2206 2207 // Canonicalize -fmodules-cache-path before storing it. 2208 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2209 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2210 if (WorkingDir.empty()) 2211 llvm::sys::fs::make_absolute(P); 2212 else 2213 llvm::sys::fs::make_absolute(WorkingDir, P); 2214 } 2215 llvm::sys::path::remove_dots(P); 2216 Opts.ModuleCachePath = std::string(P.str()); 2217 2218 Opts.ModuleUserBuildPath = 2219 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2220 // Only the -fmodule-file=<name>=<file> form. 2221 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2222 StringRef Val = A->getValue(); 2223 if (Val.find('=') != StringRef::npos){ 2224 auto Split = Val.split('='); 2225 Opts.PrebuiltModuleFiles.insert( 2226 {std::string(Split.first), std::string(Split.second)}); 2227 } 2228 } 2229 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2230 Opts.AddPrebuiltModulePath(A->getValue()); 2231 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2232 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2233 Opts.ModulesValidateDiagnosticOptions = 2234 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2235 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2236 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2237 Opts.EnablePrebuiltImplicitModules = 2238 Args.hasArg(OPT_fprebuilt_implicit_modules); 2239 Opts.ModuleCachePruneInterval = 2240 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2241 Opts.ModuleCachePruneAfter = 2242 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2243 Opts.ModulesValidateOncePerBuildSession = 2244 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2245 Opts.BuildSessionTimestamp = 2246 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2247 Opts.ModulesValidateSystemHeaders = 2248 Args.hasArg(OPT_fmodules_validate_system_headers); 2249 Opts.ValidateASTInputFilesContent = 2250 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2251 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2252 Opts.ModuleFormat = A->getValue(); 2253 2254 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2255 StringRef MacroDef = A->getValue(); 2256 Opts.ModulesIgnoreMacros.insert( 2257 llvm::CachedHashString(MacroDef.split('=').first)); 2258 } 2259 2260 // Add -I..., -F..., and -index-header-map options in order. 2261 bool IsIndexHeaderMap = false; 2262 bool IsSysrootSpecified = 2263 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2264 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2265 if (A->getOption().matches(OPT_index_header_map)) { 2266 // -index-header-map applies to the next -I or -F. 2267 IsIndexHeaderMap = true; 2268 continue; 2269 } 2270 2271 frontend::IncludeDirGroup Group = 2272 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2273 2274 bool IsFramework = A->getOption().matches(OPT_F); 2275 std::string Path = A->getValue(); 2276 2277 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2278 SmallString<32> Buffer; 2279 llvm::sys::path::append(Buffer, Opts.Sysroot, 2280 llvm::StringRef(A->getValue()).substr(1)); 2281 Path = std::string(Buffer.str()); 2282 } 2283 2284 Opts.AddPath(Path, Group, IsFramework, 2285 /*IgnoreSysroot*/ true); 2286 IsIndexHeaderMap = false; 2287 } 2288 2289 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2290 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2291 for (const auto *A : 2292 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2293 if (A->getOption().matches(OPT_iprefix)) 2294 Prefix = A->getValue(); 2295 else if (A->getOption().matches(OPT_iwithprefix)) 2296 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2297 else 2298 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2299 } 2300 2301 for (const auto *A : Args.filtered(OPT_idirafter)) 2302 Opts.AddPath(A->getValue(), frontend::After, false, true); 2303 for (const auto *A : Args.filtered(OPT_iquote)) 2304 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2305 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2306 Opts.AddPath(A->getValue(), frontend::System, false, 2307 !A->getOption().matches(OPT_iwithsysroot)); 2308 for (const auto *A : Args.filtered(OPT_iframework)) 2309 Opts.AddPath(A->getValue(), frontend::System, true, true); 2310 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2311 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2312 /*IgnoreSysRoot=*/false); 2313 2314 // Add the paths for the various language specific isystem flags. 2315 for (const auto *A : Args.filtered(OPT_c_isystem)) 2316 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2317 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2318 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2319 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2320 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2321 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2322 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2323 2324 // Add the internal paths from a driver that detects standard include paths. 2325 for (const auto *A : 2326 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2327 frontend::IncludeDirGroup Group = frontend::System; 2328 if (A->getOption().matches(OPT_internal_externc_isystem)) 2329 Group = frontend::ExternCSystem; 2330 Opts.AddPath(A->getValue(), Group, false, true); 2331 } 2332 2333 // Add the path prefixes which are implicitly treated as being system headers. 2334 for (const auto *A : 2335 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2336 Opts.AddSystemHeaderPrefix( 2337 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2338 2339 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2340 Opts.AddVFSOverlayFile(A->getValue()); 2341 } 2342 2343 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2344 const llvm::Triple &T, 2345 PreprocessorOptions &PPOpts, 2346 LangStandard::Kind LangStd) { 2347 // Set some properties which depend solely on the input kind; it would be nice 2348 // to move these to the language standard, and have the driver resolve the 2349 // input kind + language standard. 2350 // 2351 // FIXME: Perhaps a better model would be for a single source file to have 2352 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2353 // simultaneously active? 2354 if (IK.getLanguage() == Language::Asm) { 2355 Opts.AsmPreprocessor = 1; 2356 } else if (IK.isObjectiveC()) { 2357 Opts.ObjC = 1; 2358 } 2359 2360 if (LangStd == LangStandard::lang_unspecified) { 2361 // Based on the base language, pick one. 2362 switch (IK.getLanguage()) { 2363 case Language::Unknown: 2364 case Language::LLVM_IR: 2365 llvm_unreachable("Invalid input kind!"); 2366 case Language::OpenCL: 2367 LangStd = LangStandard::lang_opencl10; 2368 break; 2369 case Language::CUDA: 2370 LangStd = LangStandard::lang_cuda; 2371 break; 2372 case Language::Asm: 2373 case Language::C: 2374 #if defined(CLANG_DEFAULT_STD_C) 2375 LangStd = CLANG_DEFAULT_STD_C; 2376 #else 2377 // The PS4 uses C99 as the default C standard. 2378 if (T.isPS4()) 2379 LangStd = LangStandard::lang_gnu99; 2380 else 2381 LangStd = LangStandard::lang_gnu17; 2382 #endif 2383 break; 2384 case Language::ObjC: 2385 #if defined(CLANG_DEFAULT_STD_C) 2386 LangStd = CLANG_DEFAULT_STD_C; 2387 #else 2388 LangStd = LangStandard::lang_gnu11; 2389 #endif 2390 break; 2391 case Language::CXX: 2392 case Language::ObjCXX: 2393 #if defined(CLANG_DEFAULT_STD_CXX) 2394 LangStd = CLANG_DEFAULT_STD_CXX; 2395 #else 2396 LangStd = LangStandard::lang_gnucxx14; 2397 #endif 2398 break; 2399 case Language::RenderScript: 2400 LangStd = LangStandard::lang_c99; 2401 break; 2402 case Language::HIP: 2403 LangStd = LangStandard::lang_hip; 2404 break; 2405 } 2406 } 2407 2408 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2409 Opts.LineComment = Std.hasLineComments(); 2410 Opts.C99 = Std.isC99(); 2411 Opts.C11 = Std.isC11(); 2412 Opts.C17 = Std.isC17(); 2413 Opts.C2x = Std.isC2x(); 2414 Opts.CPlusPlus = Std.isCPlusPlus(); 2415 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2416 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2417 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2418 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2419 Opts.Digraphs = Std.hasDigraphs(); 2420 Opts.GNUMode = Std.isGNUMode(); 2421 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2422 Opts.GNUCVersion = 0; 2423 Opts.HexFloats = Std.hasHexFloats(); 2424 Opts.ImplicitInt = Std.hasImplicitInt(); 2425 2426 // Set OpenCL Version. 2427 Opts.OpenCL = Std.isOpenCL(); 2428 if (LangStd == LangStandard::lang_opencl10) 2429 Opts.OpenCLVersion = 100; 2430 else if (LangStd == LangStandard::lang_opencl11) 2431 Opts.OpenCLVersion = 110; 2432 else if (LangStd == LangStandard::lang_opencl12) 2433 Opts.OpenCLVersion = 120; 2434 else if (LangStd == LangStandard::lang_opencl20) 2435 Opts.OpenCLVersion = 200; 2436 else if (LangStd == LangStandard::lang_opencl30) 2437 Opts.OpenCLVersion = 300; 2438 else if (LangStd == LangStandard::lang_openclcpp) 2439 Opts.OpenCLCPlusPlusVersion = 100; 2440 2441 // OpenCL has some additional defaults. 2442 if (Opts.OpenCL) { 2443 Opts.AltiVec = 0; 2444 Opts.ZVector = 0; 2445 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2446 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2447 Opts.NativeHalfType = 1; 2448 Opts.NativeHalfArgsAndReturns = 1; 2449 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2450 2451 // Include default header file for OpenCL. 2452 if (Opts.IncludeDefaultHeader) { 2453 if (Opts.DeclareOpenCLBuiltins) { 2454 // Only include base header file for builtin types and constants. 2455 PPOpts.Includes.push_back("opencl-c-base.h"); 2456 } else { 2457 PPOpts.Includes.push_back("opencl-c.h"); 2458 } 2459 } 2460 } 2461 2462 Opts.HIP = IK.getLanguage() == Language::HIP; 2463 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2464 if (Opts.CUDA) 2465 // Set default FP_CONTRACT to FAST. 2466 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2467 2468 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2469 if (Opts.RenderScript) { 2470 Opts.NativeHalfType = 1; 2471 Opts.NativeHalfArgsAndReturns = 1; 2472 } 2473 2474 // OpenCL and C++ both have bool, true, false keywords. 2475 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2476 2477 // OpenCL has half keyword 2478 Opts.Half = Opts.OpenCL; 2479 2480 // C++ has wchar_t keyword. 2481 Opts.WChar = Opts.CPlusPlus; 2482 2483 Opts.GNUKeywords = Opts.GNUMode; 2484 Opts.CXXOperatorNames = Opts.CPlusPlus; 2485 2486 Opts.AlignedAllocation = Opts.CPlusPlus17; 2487 2488 Opts.DollarIdents = !Opts.AsmPreprocessor; 2489 2490 // Enable [[]] attributes in C++11 and C2x by default. 2491 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2492 } 2493 2494 /// Attempt to parse a visibility value out of the given argument. 2495 static Visibility parseVisibility(Arg *arg, ArgList &args, 2496 DiagnosticsEngine &diags) { 2497 StringRef value = arg->getValue(); 2498 if (value == "default") { 2499 return DefaultVisibility; 2500 } else if (value == "hidden" || value == "internal") { 2501 return HiddenVisibility; 2502 } else if (value == "protected") { 2503 // FIXME: diagnose if target does not support protected visibility 2504 return ProtectedVisibility; 2505 } 2506 2507 diags.Report(diag::err_drv_invalid_value) 2508 << arg->getAsString(args) << value; 2509 return DefaultVisibility; 2510 } 2511 2512 /// Check if input file kind and language standard are compatible. 2513 static bool IsInputCompatibleWithStandard(InputKind IK, 2514 const LangStandard &S) { 2515 switch (IK.getLanguage()) { 2516 case Language::Unknown: 2517 case Language::LLVM_IR: 2518 llvm_unreachable("should not parse language flags for this input"); 2519 2520 case Language::C: 2521 case Language::ObjC: 2522 case Language::RenderScript: 2523 return S.getLanguage() == Language::C; 2524 2525 case Language::OpenCL: 2526 return S.getLanguage() == Language::OpenCL; 2527 2528 case Language::CXX: 2529 case Language::ObjCXX: 2530 return S.getLanguage() == Language::CXX; 2531 2532 case Language::CUDA: 2533 // FIXME: What -std= values should be permitted for CUDA compilations? 2534 return S.getLanguage() == Language::CUDA || 2535 S.getLanguage() == Language::CXX; 2536 2537 case Language::HIP: 2538 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2539 2540 case Language::Asm: 2541 // Accept (and ignore) all -std= values. 2542 // FIXME: The -std= value is not ignored; it affects the tokenization 2543 // and preprocessing rules if we're preprocessing this asm input. 2544 return true; 2545 } 2546 2547 llvm_unreachable("unexpected input language"); 2548 } 2549 2550 /// Get language name for given input kind. 2551 static const StringRef GetInputKindName(InputKind IK) { 2552 switch (IK.getLanguage()) { 2553 case Language::C: 2554 return "C"; 2555 case Language::ObjC: 2556 return "Objective-C"; 2557 case Language::CXX: 2558 return "C++"; 2559 case Language::ObjCXX: 2560 return "Objective-C++"; 2561 case Language::OpenCL: 2562 return "OpenCL"; 2563 case Language::CUDA: 2564 return "CUDA"; 2565 case Language::RenderScript: 2566 return "RenderScript"; 2567 case Language::HIP: 2568 return "HIP"; 2569 2570 case Language::Asm: 2571 return "Asm"; 2572 case Language::LLVM_IR: 2573 return "LLVM IR"; 2574 2575 case Language::Unknown: 2576 break; 2577 } 2578 llvm_unreachable("unknown input language"); 2579 } 2580 2581 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2582 const TargetOptions &TargetOpts, 2583 PreprocessorOptions &PPOpts, 2584 DiagnosticsEngine &Diags) { 2585 // FIXME: Cleanup per-file based stuff. 2586 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2587 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2588 LangStd = LangStandard::getLangKind(A->getValue()); 2589 if (LangStd == LangStandard::lang_unspecified) { 2590 Diags.Report(diag::err_drv_invalid_value) 2591 << A->getAsString(Args) << A->getValue(); 2592 // Report supported standards with short description. 2593 for (unsigned KindValue = 0; 2594 KindValue != LangStandard::lang_unspecified; 2595 ++KindValue) { 2596 const LangStandard &Std = LangStandard::getLangStandardForKind( 2597 static_cast<LangStandard::Kind>(KindValue)); 2598 if (IsInputCompatibleWithStandard(IK, Std)) { 2599 auto Diag = Diags.Report(diag::note_drv_use_standard); 2600 Diag << Std.getName() << Std.getDescription(); 2601 unsigned NumAliases = 0; 2602 #define LANGSTANDARD(id, name, lang, desc, features) 2603 #define LANGSTANDARD_ALIAS(id, alias) \ 2604 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2605 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2606 #include "clang/Basic/LangStandards.def" 2607 Diag << NumAliases; 2608 #define LANGSTANDARD(id, name, lang, desc, features) 2609 #define LANGSTANDARD_ALIAS(id, alias) \ 2610 if (KindValue == LangStandard::lang_##id) Diag << alias; 2611 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2612 #include "clang/Basic/LangStandards.def" 2613 } 2614 } 2615 } else { 2616 // Valid standard, check to make sure language and standard are 2617 // compatible. 2618 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2619 if (!IsInputCompatibleWithStandard(IK, Std)) { 2620 Diags.Report(diag::err_drv_argument_not_allowed_with) 2621 << A->getAsString(Args) << GetInputKindName(IK); 2622 } 2623 } 2624 } 2625 2626 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2627 Opts.DllExportInlines = false; 2628 2629 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2630 StringRef Name = A->getValue(); 2631 if (Name == "full" || Name == "branch") { 2632 Opts.CFProtectionBranch = 1; 2633 } 2634 } 2635 // -cl-std only applies for OpenCL language standards. 2636 // Override the -std option in this case. 2637 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2638 LangStandard::Kind OpenCLLangStd 2639 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2640 .Cases("cl", "CL", LangStandard::lang_opencl10) 2641 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 2642 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2643 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2644 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2645 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 2646 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2647 .Default(LangStandard::lang_unspecified); 2648 2649 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2650 Diags.Report(diag::err_drv_invalid_value) 2651 << A->getAsString(Args) << A->getValue(); 2652 } 2653 else 2654 LangStd = OpenCLLangStd; 2655 } 2656 2657 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2658 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2659 if (Opts.SYCL) { 2660 // -sycl-std applies to any SYCL source, not only those containing kernels, 2661 // but also those using the SYCL API 2662 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2663 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2664 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2665 .Default(0U); 2666 2667 if (Opts.SYCLVersion == 0U) { 2668 // User has passed an invalid value to the flag, this is an error 2669 Diags.Report(diag::err_drv_invalid_value) 2670 << A->getAsString(Args) << A->getValue(); 2671 } 2672 } 2673 } 2674 2675 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2676 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2677 2678 llvm::Triple T(TargetOpts.Triple); 2679 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2680 2681 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2682 // This option should be deprecated for CL > 1.0 because 2683 // this option was added for compatibility with OpenCL 1.0. 2684 if (Args.getLastArg(OPT_cl_strict_aliasing) 2685 && Opts.OpenCLVersion > 100) { 2686 Diags.Report(diag::warn_option_invalid_ocl_version) 2687 << Opts.getOpenCLVersionTuple().getAsString() 2688 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2689 } 2690 2691 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2692 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2693 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2694 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2695 // name, as it doesn't seem a useful distinction. 2696 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2697 Opts.GNUKeywords); 2698 2699 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2700 2701 if (Args.hasArg(OPT_fno_operator_names)) 2702 Opts.CXXOperatorNames = 0; 2703 2704 if (Args.hasArg(OPT_fcuda_is_device)) 2705 Opts.CUDAIsDevice = 1; 2706 2707 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2708 Opts.CUDAAllowVariadicFunctions = 1; 2709 2710 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2711 Opts.CUDAHostDeviceConstexpr = 0; 2712 2713 if (Args.hasArg(OPT_fgpu_defer_diag)) 2714 Opts.GPUDeferDiag = 1; 2715 2716 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2717 Opts.CUDADeviceApproxTranscendentals = 1; 2718 2719 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2720 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2721 if (Opts.HIP) 2722 Opts.GPUAllowDeviceInit = 1; 2723 else 2724 Diags.Report(diag::warn_ignored_hip_only_option) 2725 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2726 } 2727 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2728 if (Opts.HIP) 2729 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2730 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2731 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2732 Diags.Report(diag::warn_ignored_hip_only_option) 2733 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2734 2735 if (Opts.ObjC) { 2736 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2737 StringRef value = arg->getValue(); 2738 if (Opts.ObjCRuntime.tryParse(value)) 2739 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2740 } 2741 2742 if (Args.hasArg(OPT_fobjc_gc_only)) 2743 Opts.setGC(LangOptions::GCOnly); 2744 else if (Args.hasArg(OPT_fobjc_gc)) 2745 Opts.setGC(LangOptions::HybridGC); 2746 else if (Args.hasArg(OPT_fobjc_arc)) { 2747 Opts.ObjCAutoRefCount = 1; 2748 if (!Opts.ObjCRuntime.allowsARC()) 2749 Diags.Report(diag::err_arc_unsupported_on_runtime); 2750 } 2751 2752 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2753 // whether the feature is actually enabled. This is predominantly 2754 // determined by -fobjc-runtime, but we allow it to be overridden 2755 // from the command line for testing purposes. 2756 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2757 Opts.ObjCWeakRuntime = 1; 2758 else 2759 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2760 2761 // ObjCWeak determines whether __weak is actually enabled. 2762 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2763 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2764 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2765 assert(!Opts.ObjCWeak); 2766 } else if (Opts.getGC() != LangOptions::NonGC) { 2767 Diags.Report(diag::err_objc_weak_with_gc); 2768 } else if (!Opts.ObjCWeakRuntime) { 2769 Diags.Report(diag::err_objc_weak_unsupported); 2770 } else { 2771 Opts.ObjCWeak = 1; 2772 } 2773 } else if (Opts.ObjCAutoRefCount) { 2774 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2775 } 2776 2777 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2778 Opts.ObjCInferRelatedResultType = 0; 2779 2780 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2781 Opts.ObjCSubscriptingLegacyRuntime = 2782 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2783 } 2784 2785 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2786 // Check that the version has 1 to 3 components and the minor and patch 2787 // versions fit in two decimal digits. 2788 VersionTuple GNUCVer; 2789 bool Invalid = GNUCVer.tryParse(A->getValue()); 2790 unsigned Major = GNUCVer.getMajor(); 2791 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2792 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2793 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2794 Diags.Report(diag::err_drv_invalid_value) 2795 << A->getAsString(Args) << A->getValue(); 2796 } 2797 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2798 } 2799 2800 if (Args.hasArg(OPT_fgnu89_inline)) { 2801 if (Opts.CPlusPlus) 2802 Diags.Report(diag::err_drv_argument_not_allowed_with) 2803 << "-fgnu89-inline" << GetInputKindName(IK); 2804 else 2805 Opts.GNUInline = 1; 2806 } 2807 2808 if (Args.hasArg(OPT_fapple_kext)) { 2809 if (!Opts.CPlusPlus) 2810 Diags.Report(diag::warn_c_kext); 2811 else 2812 Opts.AppleKext = 1; 2813 } 2814 2815 if (Args.hasArg(OPT_print_ivar_layout)) 2816 Opts.ObjCGCBitmapPrint = 1; 2817 2818 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2819 Opts.NoConstantCFStrings = 1; 2820 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2821 Opts.CFRuntime = 2822 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2823 .Cases("unspecified", "standalone", "objc", 2824 LangOptions::CoreFoundationABI::ObjectiveC) 2825 .Cases("swift", "swift-5.0", 2826 LangOptions::CoreFoundationABI::Swift5_0) 2827 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2828 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2829 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2830 2831 if (Args.hasArg(OPT_fzvector)) 2832 Opts.ZVector = 1; 2833 2834 if (Args.hasArg(OPT_pthread)) 2835 Opts.POSIXThreads = 1; 2836 2837 // The value-visibility mode defaults to "default". 2838 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2839 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2840 } else { 2841 Opts.setValueVisibilityMode(DefaultVisibility); 2842 } 2843 2844 // The type-visibility mode defaults to the value-visibility mode. 2845 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2846 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2847 } else { 2848 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2849 } 2850 2851 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2852 Opts.InlineVisibilityHidden = 1; 2853 2854 if (Args.hasArg(OPT_fvisibility_inlines_hidden_static_local_var)) 2855 Opts.VisibilityInlinesHiddenStaticLocalVar = 1; 2856 2857 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2858 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2859 2860 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2861 Opts.SetVisibilityForExternDecls = 1; 2862 2863 if (Args.hasArg(OPT_fvisibility_from_dllstorageclass)) { 2864 Opts.VisibilityFromDLLStorageClass = 1; 2865 2866 // Translate dllexport defintions to default visibility, by default. 2867 if (Arg *O = Args.getLastArg(OPT_fvisibility_dllexport_EQ)) 2868 Opts.setDLLExportVisibility(parseVisibility(O, Args, Diags)); 2869 else 2870 Opts.setDLLExportVisibility(DefaultVisibility); 2871 2872 // Translate defintions without an explict DLL storage class to hidden 2873 // visibility, by default. 2874 if (Arg *O = Args.getLastArg(OPT_fvisibility_nodllstorageclass_EQ)) 2875 Opts.setNoDLLStorageClassVisibility(parseVisibility(O, Args, Diags)); 2876 else 2877 Opts.setNoDLLStorageClassVisibility(HiddenVisibility); 2878 2879 // Translate dllimport external declarations to default visibility, by 2880 // default. 2881 if (Arg *O = Args.getLastArg(OPT_fvisibility_externs_dllimport_EQ)) 2882 Opts.setExternDeclDLLImportVisibility(parseVisibility(O, Args, Diags)); 2883 else 2884 Opts.setExternDeclDLLImportVisibility(DefaultVisibility); 2885 2886 // Translate external declarations without an explicit DLL storage class 2887 // to hidden visibility, by default. 2888 if (Arg *O = Args.getLastArg(OPT_fvisibility_externs_nodllstorageclass_EQ)) 2889 Opts.setExternDeclNoDLLStorageClassVisibility( 2890 parseVisibility(O, Args, Diags)); 2891 else 2892 Opts.setExternDeclNoDLLStorageClassVisibility(HiddenVisibility); 2893 } 2894 2895 if (Args.hasArg(OPT_ftrapv)) { 2896 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2897 // Set the handler, if one is specified. 2898 Opts.OverflowHandler = 2899 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2900 } 2901 else if (Args.hasArg(OPT_fwrapv)) 2902 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2903 2904 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2905 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2906 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2907 Opts.MSCompatibilityVersion = 0; 2908 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2909 VersionTuple VT; 2910 if (VT.tryParse(A->getValue())) 2911 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2912 << A->getValue(); 2913 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2914 VT.getMinor().getValueOr(0) * 100000 + 2915 VT.getSubminor().getValueOr(0); 2916 } 2917 2918 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2919 // is specified, or -std is set to a conforming mode. 2920 // Trigraphs are disabled by default in c++1z onwards. 2921 // For z/OS, trigraphs are enabled by default (without regard to the above). 2922 Opts.Trigraphs = 2923 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 2924 Opts.Trigraphs = 2925 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2926 2927 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2928 OPT_fno_dollars_in_identifiers, 2929 Opts.DollarIdents); 2930 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2931 Opts.setVtorDispMode( 2932 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2933 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2934 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2935 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2936 Opts.ConstStrings); 2937 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2938 using LaxKind = LangOptions::LaxVectorConversionKind; 2939 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2940 .Case("none", LaxKind::None) 2941 .Case("integer", LaxKind::Integer) 2942 .Case("all", LaxKind::All) 2943 .Default(llvm::None)) 2944 Opts.setLaxVectorConversions(*Kind); 2945 else 2946 Diags.Report(diag::err_drv_invalid_value) 2947 << A->getAsString(Args) << A->getValue(); 2948 } 2949 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2950 Opts.ThreadsafeStatics = 0; 2951 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2952 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2953 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2954 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2955 2956 // -ffixed-point 2957 Opts.FixedPoint = 2958 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2959 !Opts.CPlusPlus; 2960 Opts.PaddingOnUnsignedFixedPoint = 2961 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2962 OPT_fno_padding_on_unsigned_fixed_point, 2963 /*Default=*/false) && 2964 Opts.FixedPoint; 2965 2966 // Handle exception personalities 2967 Arg *A = Args.getLastArg( 2968 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2969 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2970 if (A) { 2971 const Option &Opt = A->getOption(); 2972 llvm::Triple T(TargetOpts.Triple); 2973 if (T.isWindowsMSVCEnvironment()) 2974 Diags.Report(diag::err_fe_invalid_exception_model) 2975 << Opt.getName() << T.str(); 2976 2977 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2978 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2979 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2980 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2981 } 2982 2983 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2984 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2985 2986 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2987 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2988 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2989 && Opts.OpenCLVersion == 200); 2990 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2991 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2992 2993 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2994 Opts.SYCLIsDevice || 2995 Args.hasArg(OPT_fconvergent_functions); 2996 2997 Opts.DoubleSquareBracketAttributes = 2998 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2999 OPT_fno_double_square_bracket_attributes, 3000 Opts.DoubleSquareBracketAttributes); 3001 3002 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3003 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 3004 Opts.Modules = 3005 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 3006 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 3007 Opts.ModulesDeclUse = 3008 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 3009 // FIXME: We only need this in C++ modules / Modules TS if we might textually 3010 // enter a different module (eg, when building a header unit). 3011 Opts.ModulesLocalVisibility = 3012 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 3013 Opts.CPlusPlusModules; 3014 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 3015 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 3016 Opts.ModulesSearchAll = Opts.Modules && 3017 !Args.hasArg(OPT_fno_modules_search_all) && 3018 Args.hasArg(OPT_fmodules_search_all); 3019 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 3020 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 3021 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 3022 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 3023 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 3024 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 3025 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 3026 .Case("char", 1) 3027 .Case("short", 2) 3028 .Case("int", 4) 3029 .Default(0); 3030 if (Opts.WCharSize == 0) 3031 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 3032 } 3033 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 3034 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 3035 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 3036 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3037 if (!Opts.NoBuiltin) 3038 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3039 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 3040 Opts.RelaxedTemplateTemplateArgs = 3041 Args.hasArg(OPT_frelaxed_template_template_args); 3042 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 3043 Opts.AlignedAllocation = 3044 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 3045 Opts.AlignedAllocation); 3046 Opts.AlignedAllocationUnavailable = 3047 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 3048 Opts.NewAlignOverride = 3049 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 3050 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 3051 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 3052 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 3053 << A->getValue(); 3054 Opts.NewAlignOverride = 0; 3055 } 3056 Opts.ConceptSatisfactionCaching = 3057 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 3058 if (Args.hasArg(OPT_fconcepts_ts)) 3059 Diags.Report(diag::warn_fe_concepts_ts_flag); 3060 // Recovery AST still heavily relies on dependent-type machinery. 3061 Opts.RecoveryAST = 3062 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, Opts.CPlusPlus); 3063 Opts.RecoveryASTType = Args.hasFlag( 3064 OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, Opts.CPlusPlus); 3065 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 3066 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 3067 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 3068 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 3069 Opts.InstantiationDepth = 3070 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 3071 Opts.ArrowDepth = 3072 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 3073 Opts.ConstexprCallDepth = 3074 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 3075 Opts.ConstexprStepLimit = 3076 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 3077 Opts.EnableNewConstInterp = 3078 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 3079 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 3080 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 3081 Opts.NumLargeByValueCopy = 3082 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 3083 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 3084 Opts.ObjCConstantStringClass = 3085 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 3086 Opts.ObjCDefaultSynthProperties = 3087 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 3088 Opts.EncodeExtendedBlockSig = 3089 Args.hasArg(OPT_fencode_extended_block_signature); 3090 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 3091 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 3092 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 3093 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 3094 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 3095 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3096 ? 128 3097 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3098 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 3099 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3100 Opts.ROPI = Args.hasArg(OPT_fropi); 3101 Opts.RWPI = Args.hasArg(OPT_frwpi); 3102 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3103 Opts.Static = Args.hasArg(OPT_static_define); 3104 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 3105 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 3106 || Args.hasArg(OPT_fdump_record_layouts); 3107 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 3108 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 3109 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 3110 if (Opts.FastRelaxedMath) 3111 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3112 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 3113 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 3114 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 3115 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 3116 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 3117 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 3118 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 3119 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 3120 Opts.CurrentModule = Opts.ModuleName; 3121 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 3122 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 3123 llvm::sort(Opts.ModuleFeatures); 3124 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 3125 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 3126 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 3127 // is enabled. 3128 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 3129 | Opts.NativeHalfArgsAndReturns; 3130 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 3131 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 3132 3133 Opts.ArmSveVectorBits = 3134 getLastArgIntValue(Args, options::OPT_msve_vector_bits_EQ, 0, Diags); 3135 3136 // __declspec is enabled by default for the PS4 by the driver, and also 3137 // enabled for Microsoft Extensions or Borland Extensions, here. 3138 // 3139 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 3140 // CUDA extension. However, it is required for supporting 3141 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 3142 // been rewritten in terms of something more generic, remove the Opts.CUDA 3143 // term here. 3144 Opts.DeclSpecKeyword = 3145 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 3146 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 3147 3148 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 3149 switch (llvm::StringSwitch<unsigned>(A->getValue()) 3150 .Case("target", LangOptions::ASMM_Target) 3151 .Case("no", LangOptions::ASMM_Off) 3152 .Case("yes", LangOptions::ASMM_On) 3153 .Default(255)) { 3154 default: 3155 Diags.Report(diag::err_drv_invalid_value) 3156 << "-faddress-space-map-mangling=" << A->getValue(); 3157 break; 3158 case LangOptions::ASMM_Target: 3159 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3160 break; 3161 case LangOptions::ASMM_On: 3162 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3163 break; 3164 case LangOptions::ASMM_Off: 3165 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3166 break; 3167 } 3168 } 3169 3170 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3171 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3172 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3173 A->getValue()) 3174 .Case("single", 3175 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3176 .Case("multiple", 3177 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3178 .Case("virtual", 3179 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3180 .Default(LangOptions::PPTMK_BestCase); 3181 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3182 Diags.Report(diag::err_drv_invalid_value) 3183 << "-fms-memptr-rep=" << A->getValue(); 3184 3185 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3186 } 3187 3188 // Check for MS default calling conventions being specified. 3189 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3190 LangOptions::DefaultCallingConvention DefaultCC = 3191 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3192 .Case("cdecl", LangOptions::DCC_CDecl) 3193 .Case("fastcall", LangOptions::DCC_FastCall) 3194 .Case("stdcall", LangOptions::DCC_StdCall) 3195 .Case("vectorcall", LangOptions::DCC_VectorCall) 3196 .Case("regcall", LangOptions::DCC_RegCall) 3197 .Default(LangOptions::DCC_None); 3198 if (DefaultCC == LangOptions::DCC_None) 3199 Diags.Report(diag::err_drv_invalid_value) 3200 << "-fdefault-calling-conv=" << A->getValue(); 3201 3202 llvm::Triple T(TargetOpts.Triple); 3203 llvm::Triple::ArchType Arch = T.getArch(); 3204 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3205 DefaultCC == LangOptions::DCC_StdCall) && 3206 Arch != llvm::Triple::x86; 3207 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3208 DefaultCC == LangOptions::DCC_RegCall) && 3209 !T.isX86(); 3210 if (emitError) 3211 Diags.Report(diag::err_drv_argument_not_allowed_with) 3212 << A->getSpelling() << T.getTriple(); 3213 else 3214 Opts.setDefaultCallingConv(DefaultCC); 3215 } 3216 3217 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3218 // An explicit -fno-semantic-interposition infers dso_local. 3219 Opts.ExplicitNoSemanticInterposition = 3220 Args.hasArg(OPT_fno_semantic_interposition); 3221 3222 // -mrtd option 3223 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3224 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3225 Diags.Report(diag::err_drv_argument_not_allowed_with) 3226 << A->getSpelling() << "-fdefault-calling-conv"; 3227 else { 3228 llvm::Triple T(TargetOpts.Triple); 3229 if (T.getArch() != llvm::Triple::x86) 3230 Diags.Report(diag::err_drv_argument_not_allowed_with) 3231 << A->getSpelling() << T.getTriple(); 3232 else 3233 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3234 } 3235 } 3236 3237 // Check if -fopenmp is specified and set default version to 5.0. 3238 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 50 : 0; 3239 // Check if -fopenmp-simd is specified. 3240 bool IsSimdSpecified = 3241 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3242 /*Default=*/false); 3243 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3244 Opts.OpenMPUseTLS = 3245 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3246 Opts.OpenMPIsDevice = 3247 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3248 Opts.OpenMPIRBuilder = 3249 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3250 bool IsTargetSpecified = 3251 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3252 3253 if (Opts.OpenMP || Opts.OpenMPSimd) { 3254 if (int Version = getLastArgIntValue( 3255 Args, OPT_fopenmp_version_EQ, 3256 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3257 Opts.OpenMP = Version; 3258 // Provide diagnostic when a given target is not expected to be an OpenMP 3259 // device or host. 3260 if (!Opts.OpenMPIsDevice) { 3261 switch (T.getArch()) { 3262 default: 3263 break; 3264 // Add unsupported host targets here: 3265 case llvm::Triple::nvptx: 3266 case llvm::Triple::nvptx64: 3267 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3268 << TargetOpts.Triple; 3269 break; 3270 } 3271 } 3272 } 3273 3274 // Set the flag to prevent the implementation from emitting device exception 3275 // handling code for those requiring so. 3276 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3277 Opts.OpenCLCPlusPlus) { 3278 Opts.Exceptions = 0; 3279 Opts.CXXExceptions = 0; 3280 } 3281 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3282 Opts.OpenMPCUDANumSMs = 3283 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3284 Opts.OpenMPCUDANumSMs, Diags); 3285 Opts.OpenMPCUDABlocksPerSM = 3286 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3287 Opts.OpenMPCUDABlocksPerSM, Diags); 3288 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3289 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3290 Opts.OpenMPCUDAReductionBufNum, Diags); 3291 } 3292 3293 // Prevent auto-widening the representation of loop counters during an 3294 // OpenMP collapse clause. 3295 Opts.OpenMPOptimisticCollapse = 3296 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3297 3298 // Get the OpenMP target triples if any. 3299 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3300 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3301 auto getArchPtrSize = [](const llvm::Triple &T) { 3302 if (T.isArch16Bit()) 3303 return Arch16Bit; 3304 if (T.isArch32Bit()) 3305 return Arch32Bit; 3306 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3307 return Arch64Bit; 3308 }; 3309 3310 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3311 llvm::Triple TT(A->getValue(i)); 3312 3313 if (TT.getArch() == llvm::Triple::UnknownArch || 3314 !(TT.getArch() == llvm::Triple::aarch64 || 3315 TT.getArch() == llvm::Triple::ppc || 3316 TT.getArch() == llvm::Triple::ppc64 || 3317 TT.getArch() == llvm::Triple::ppc64le || 3318 TT.getArch() == llvm::Triple::nvptx || 3319 TT.getArch() == llvm::Triple::nvptx64 || 3320 TT.getArch() == llvm::Triple::amdgcn || 3321 TT.getArch() == llvm::Triple::x86 || 3322 TT.getArch() == llvm::Triple::x86_64)) 3323 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3324 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3325 Diags.Report(diag::err_drv_incompatible_omp_arch) 3326 << A->getValue(i) << T.str(); 3327 else 3328 Opts.OMPTargetTriples.push_back(TT); 3329 } 3330 } 3331 3332 // Get OpenMP host file path if any and report if a non existent file is 3333 // found 3334 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3335 Opts.OMPHostIRFile = A->getValue(); 3336 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3337 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3338 << Opts.OMPHostIRFile; 3339 } 3340 3341 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3342 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3343 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3344 3345 // Set CUDA support for parallel execution of target regions for OpenMP target 3346 // NVPTX/AMDGCN if specified in options. 3347 Opts.OpenMPCUDATargetParallel = 3348 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3349 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3350 3351 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3352 Opts.OpenMPCUDAForceFullRuntime = 3353 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3354 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3355 3356 // Record whether the __DEPRECATED define was requested. 3357 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3358 OPT_fno_deprecated_macro, 3359 Opts.Deprecated); 3360 3361 // FIXME: Eliminate this dependency. 3362 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3363 OptSize = getOptimizationLevelSize(Args); 3364 Opts.Optimize = Opt != 0; 3365 Opts.OptimizeSize = OptSize != 0; 3366 3367 // This is the __NO_INLINE__ define, which just depends on things like the 3368 // optimization level and -fno-inline, not actually whether the backend has 3369 // inlining enabled. 3370 Opts.NoInlineDefine = !Opts.Optimize; 3371 if (Arg *InlineArg = Args.getLastArg( 3372 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3373 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3374 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3375 Opts.NoInlineDefine = true; 3376 3377 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3378 StringRef Val = A->getValue(); 3379 if (Val == "fast") 3380 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3381 else if (Val == "on") 3382 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3383 else if (Val == "off") 3384 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3385 else 3386 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3387 } 3388 3389 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3390 if (Args.hasArg(OPT_frounding_math)) { 3391 FPRM = llvm::RoundingMode::Dynamic; 3392 } 3393 Opts.setFPRoundingMode(FPRM); 3394 3395 if (Args.hasArg(OPT_ftrapping_math)) { 3396 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3397 } 3398 3399 if (Args.hasArg(OPT_fno_trapping_math)) { 3400 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3401 } 3402 3403 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3404 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3405 StringRef Val = A->getValue(); 3406 if (Val.equals("ignore")) 3407 FPEB = LangOptions::FPE_Ignore; 3408 else if (Val.equals("maytrap")) 3409 FPEB = LangOptions::FPE_MayTrap; 3410 else if (Val.equals("strict")) 3411 FPEB = LangOptions::FPE_Strict; 3412 else 3413 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3414 } 3415 Opts.setFPExceptionMode(FPEB); 3416 3417 Opts.RetainCommentsFromSystemHeaders = 3418 Args.hasArg(OPT_fretain_comments_from_system_headers); 3419 3420 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3421 switch (SSP) { 3422 default: 3423 Diags.Report(diag::err_drv_invalid_value) 3424 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3425 break; 3426 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3427 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3428 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3429 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3430 } 3431 3432 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3433 StringRef Val = A->getValue(); 3434 if (Val == "uninitialized") 3435 Opts.setTrivialAutoVarInit( 3436 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3437 else if (Val == "zero") 3438 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3439 else if (Val == "pattern") 3440 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3441 else 3442 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3443 } 3444 3445 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3446 int Val = std::stoi(A->getValue()); 3447 Opts.TrivialAutoVarInitStopAfter = Val; 3448 } 3449 3450 // Parse -fsanitize= arguments. 3451 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3452 Diags, Opts.Sanitize); 3453 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3454 Opts.SanitizeAddressFieldPadding = 3455 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3456 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3457 std::vector<std::string> systemBlacklists = 3458 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3459 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3460 systemBlacklists.begin(), 3461 systemBlacklists.end()); 3462 3463 // -fxray-{always,never}-instrument= filenames. 3464 Opts.XRayAlwaysInstrumentFiles = 3465 Args.getAllArgValues(OPT_fxray_always_instrument); 3466 Opts.XRayNeverInstrumentFiles = 3467 Args.getAllArgValues(OPT_fxray_never_instrument); 3468 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3469 3470 // -fforce-emit-vtables 3471 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3472 3473 // -fallow-editor-placeholders 3474 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3475 3476 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3477 3478 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3479 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3480 3481 StringRef Ver = A->getValue(); 3482 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3483 unsigned Major, Minor = 0; 3484 3485 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3486 // y or y.0 (4 <= y <= current version). 3487 if (!VerParts.first.startswith("0") && 3488 !VerParts.first.getAsInteger(10, Major) && 3489 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3490 (Major == 3 ? VerParts.second.size() == 1 && 3491 !VerParts.second.getAsInteger(10, Minor) 3492 : VerParts.first.size() == Ver.size() || 3493 VerParts.second == "0")) { 3494 // Got a valid version number. 3495 if (Major == 3 && Minor <= 8) 3496 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3497 else if (Major <= 4) 3498 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3499 else if (Major <= 6) 3500 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3501 else if (Major <= 7) 3502 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3503 else if (Major <= 9) 3504 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3505 else if (Major <= 11) 3506 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3507 } else if (Ver != "latest") { 3508 Diags.Report(diag::err_drv_invalid_value) 3509 << A->getAsString(Args) << A->getValue(); 3510 } 3511 } 3512 3513 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3514 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3515 Opts.PCHInstantiateTemplates = Args.hasArg(OPT_fpch_instantiate_templates); 3516 3517 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3518 3519 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3520 3521 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3522 StringRef SignScope = A->getValue(); 3523 3524 if (SignScope.equals_lower("none")) 3525 Opts.setSignReturnAddressScope( 3526 LangOptions::SignReturnAddressScopeKind::None); 3527 else if (SignScope.equals_lower("all")) 3528 Opts.setSignReturnAddressScope( 3529 LangOptions::SignReturnAddressScopeKind::All); 3530 else if (SignScope.equals_lower("non-leaf")) 3531 Opts.setSignReturnAddressScope( 3532 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3533 else 3534 Diags.Report(diag::err_drv_invalid_value) 3535 << A->getAsString(Args) << SignScope; 3536 3537 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3538 StringRef SignKey = A->getValue(); 3539 if (!SignScope.empty() && !SignKey.empty()) { 3540 if (SignKey.equals_lower("a_key")) 3541 Opts.setSignReturnAddressKey( 3542 LangOptions::SignReturnAddressKeyKind::AKey); 3543 else if (SignKey.equals_lower("b_key")) 3544 Opts.setSignReturnAddressKey( 3545 LangOptions::SignReturnAddressKeyKind::BKey); 3546 else 3547 Diags.Report(diag::err_drv_invalid_value) 3548 << A->getAsString(Args) << SignKey; 3549 } 3550 } 3551 } 3552 3553 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3554 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3555 3556 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3557 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3558 3559 Opts.RelativeCXXABIVTables = 3560 Args.hasFlag(OPT_fexperimental_relative_cxx_abi_vtables, 3561 OPT_fno_experimental_relative_cxx_abi_vtables, 3562 /*default=*/false); 3563 } 3564 3565 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3566 switch (Action) { 3567 case frontend::ASTDeclList: 3568 case frontend::ASTDump: 3569 case frontend::ASTPrint: 3570 case frontend::ASTView: 3571 case frontend::EmitAssembly: 3572 case frontend::EmitBC: 3573 case frontend::EmitHTML: 3574 case frontend::EmitLLVM: 3575 case frontend::EmitLLVMOnly: 3576 case frontend::EmitCodeGenOnly: 3577 case frontend::EmitObj: 3578 case frontend::FixIt: 3579 case frontend::GenerateModule: 3580 case frontend::GenerateModuleInterface: 3581 case frontend::GenerateHeaderModule: 3582 case frontend::GeneratePCH: 3583 case frontend::GenerateInterfaceStubs: 3584 case frontend::ParseSyntaxOnly: 3585 case frontend::ModuleFileInfo: 3586 case frontend::VerifyPCH: 3587 case frontend::PluginAction: 3588 case frontend::RewriteObjC: 3589 case frontend::RewriteTest: 3590 case frontend::RunAnalysis: 3591 case frontend::TemplightDump: 3592 case frontend::MigrateSource: 3593 return false; 3594 3595 case frontend::DumpCompilerOptions: 3596 case frontend::DumpRawTokens: 3597 case frontend::DumpTokens: 3598 case frontend::InitOnly: 3599 case frontend::PrintPreamble: 3600 case frontend::PrintPreprocessedInput: 3601 case frontend::RewriteMacros: 3602 case frontend::RunPreprocessorOnly: 3603 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3604 return true; 3605 } 3606 llvm_unreachable("invalid frontend action"); 3607 } 3608 3609 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3610 DiagnosticsEngine &Diags, 3611 frontend::ActionKind Action) { 3612 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3613 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3614 Args.hasArg(OPT_pch_through_hdrstop_use); 3615 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3616 Opts.PCHThroughHeader = 3617 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3618 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3619 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3620 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3621 Opts.AllowPCHWithCompilerErrors = 3622 Args.hasArg(OPT_fallow_pch_with_errors, OPT_fallow_pcm_with_errors); 3623 3624 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3625 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3626 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3627 3628 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3629 auto Split = StringRef(A).split('='); 3630 Opts.MacroPrefixMap.insert( 3631 {std::string(Split.first), std::string(Split.second)}); 3632 } 3633 3634 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3635 StringRef Value(A->getValue()); 3636 size_t Comma = Value.find(','); 3637 unsigned Bytes = 0; 3638 unsigned EndOfLine = 0; 3639 3640 if (Comma == StringRef::npos || 3641 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3642 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3643 Diags.Report(diag::err_drv_preamble_format); 3644 else { 3645 Opts.PrecompiledPreambleBytes.first = Bytes; 3646 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3647 } 3648 } 3649 3650 // Add the __CET__ macro if a CFProtection option is set. 3651 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3652 StringRef Name = A->getValue(); 3653 if (Name == "branch") 3654 Opts.addMacroDef("__CET__=1"); 3655 else if (Name == "return") 3656 Opts.addMacroDef("__CET__=2"); 3657 else if (Name == "full") 3658 Opts.addMacroDef("__CET__=3"); 3659 } 3660 3661 // Add macros from the command line. 3662 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3663 if (A->getOption().matches(OPT_D)) 3664 Opts.addMacroDef(A->getValue()); 3665 else 3666 Opts.addMacroUndef(A->getValue()); 3667 } 3668 3669 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3670 3671 // Add the ordered list of -includes. 3672 for (const auto *A : Args.filtered(OPT_include)) 3673 Opts.Includes.emplace_back(A->getValue()); 3674 3675 for (const auto *A : Args.filtered(OPT_chain_include)) 3676 Opts.ChainedIncludes.emplace_back(A->getValue()); 3677 3678 for (const auto *A : Args.filtered(OPT_remap_file)) { 3679 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3680 3681 if (Split.second.empty()) { 3682 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3683 continue; 3684 } 3685 3686 Opts.addRemappedFile(Split.first, Split.second); 3687 } 3688 3689 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3690 StringRef Name = A->getValue(); 3691 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3692 .Case("libc++", ARCXX_libcxx) 3693 .Case("libstdc++", ARCXX_libstdcxx) 3694 .Case("none", ARCXX_nolib) 3695 .Default(~0U); 3696 if (Library == ~0U) 3697 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3698 else 3699 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3700 } 3701 3702 // Always avoid lexing editor placeholders when we're just running the 3703 // preprocessor as we never want to emit the 3704 // "editor placeholder in source file" error in PP only mode. 3705 if (isStrictlyPreprocessorAction(Action)) 3706 Opts.LexEditorPlaceholders = false; 3707 3708 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3709 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3710 } 3711 3712 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3713 ArgList &Args, 3714 frontend::ActionKind Action) { 3715 if (isStrictlyPreprocessorAction(Action)) 3716 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3717 else 3718 Opts.ShowCPP = 0; 3719 3720 Opts.ShowComments = Args.hasArg(OPT_C); 3721 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3722 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3723 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3724 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3725 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3726 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3727 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3728 } 3729 3730 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3731 DiagnosticsEngine &Diags) { 3732 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3733 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3734 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3735 StringRef Value = A->getValue(); 3736 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3737 .Case("default", llvm::EABI::Default) 3738 .Case("4", llvm::EABI::EABI4) 3739 .Case("5", llvm::EABI::EABI5) 3740 .Case("gnu", llvm::EABI::GNU) 3741 .Default(llvm::EABI::Unknown); 3742 if (EABIVersion == llvm::EABI::Unknown) 3743 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3744 << Value; 3745 else 3746 Opts.EABIVersion = EABIVersion; 3747 } 3748 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3749 Opts.TuneCPU = std::string(Args.getLastArgValue(OPT_tune_cpu)); 3750 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3751 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3752 Opts.LinkerVersion = 3753 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3754 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3755 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3756 Opts.NVPTXUseShortPointers = Args.hasFlag( 3757 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3758 Opts.AllowAMDGPUUnsafeFPAtomics = 3759 Args.hasFlag(options::OPT_munsafe_fp_atomics, 3760 options::OPT_mno_unsafe_fp_atomics, false); 3761 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3762 llvm::VersionTuple Version; 3763 if (Version.tryParse(A->getValue())) 3764 Diags.Report(diag::err_drv_invalid_value) 3765 << A->getAsString(Args) << A->getValue(); 3766 else 3767 Opts.SDKVersion = Version; 3768 } 3769 } 3770 3771 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 3772 DiagnosticsEngine &Diags) { 3773 #define OPTION_WITH_MARSHALLING( \ 3774 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3775 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3776 TYPE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 3777 { \ 3778 this->KEYPATH = MERGER(this->KEYPATH, DEFAULT_VALUE); \ 3779 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, Args, Diags)) \ 3780 this->KEYPATH = MERGER(this->KEYPATH, static_cast<TYPE>(*MaybeValue)); \ 3781 } 3782 3783 #define OPTION_WITH_MARSHALLING_BOOLEAN( \ 3784 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3785 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3786 TYPE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX, NEG_ID, \ 3787 NEG_SPELLING) \ 3788 { \ 3789 if (auto MaybeValue = \ 3790 NORMALIZER(OPT_##ID, OPT_##NEG_ID, TABLE_INDEX, Args, Diags)) \ 3791 this->KEYPATH = MERGER(this->KEYPATH, static_cast<TYPE>(*MaybeValue)); \ 3792 else \ 3793 this->KEYPATH = MERGER(this->KEYPATH, DEFAULT_VALUE); \ 3794 } 3795 3796 #include "clang/Driver/Options.inc" 3797 #undef OPTION_WITH_MARSHALLING_BOOLEAN 3798 #undef OPTION_WITH_MARSHALLING 3799 return true; 3800 } 3801 3802 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3803 ArrayRef<const char *> CommandLineArgs, 3804 DiagnosticsEngine &Diags, 3805 const char *Argv0) { 3806 bool Success = true; 3807 3808 // Parse the arguments. 3809 const OptTable &Opts = getDriverOptTable(); 3810 const unsigned IncludedFlagsBitmask = options::CC1Option; 3811 unsigned MissingArgIndex, MissingArgCount; 3812 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3813 MissingArgCount, IncludedFlagsBitmask); 3814 LangOptions &LangOpts = *Res.getLangOpts(); 3815 3816 // Check for missing argument error. 3817 if (MissingArgCount) { 3818 Diags.Report(diag::err_drv_missing_argument) 3819 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3820 Success = false; 3821 } 3822 3823 // Issue errors on unknown arguments. 3824 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3825 auto ArgString = A->getAsString(Args); 3826 std::string Nearest; 3827 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3828 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3829 else 3830 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3831 << ArgString << Nearest; 3832 Success = false; 3833 } 3834 3835 Success &= Res.parseSimpleArgs(Args, Diags); 3836 FixupInvocation(Res); 3837 3838 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3839 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3840 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3841 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3842 Res.getDependencyOutputOpts().Targets.empty()) { 3843 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3844 Success = false; 3845 } 3846 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3847 /*DefaultDiagColor=*/false); 3848 ParseCommentArgs(LangOpts.CommentOpts, Args); 3849 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3850 // FIXME: We shouldn't have to pass the DashX option around here 3851 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3852 LangOpts.IsHeaderFile); 3853 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3854 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3855 Res.getTargetOpts(), Res.getFrontendOpts()); 3856 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3857 Res.getFileSystemOpts().WorkingDir); 3858 llvm::Triple T(Res.getTargetOpts().Triple); 3859 if (DashX.getFormat() == InputKind::Precompiled || 3860 DashX.getLanguage() == Language::LLVM_IR) { 3861 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3862 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3863 // what the input type is. 3864 if (Args.hasArg(OPT_fobjc_arc)) 3865 LangOpts.ObjCAutoRefCount = 1; 3866 // PIClevel and PIELevel are needed during code generation and this should be 3867 // set regardless of the input type. 3868 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3869 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3870 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3871 Diags, LangOpts.Sanitize); 3872 } else { 3873 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3874 // FIXME: Should we really be calling this for an Language::Asm input? 3875 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3876 Res.getPreprocessorOpts(), Diags); 3877 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3878 LangOpts.ObjCExceptions = 1; 3879 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3880 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3881 // preprocessed input as we don't expect it to be used with -std=libc++ 3882 // anyway. 3883 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3884 } 3885 } 3886 3887 LangOpts.FunctionAlignment = 3888 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3889 3890 if (LangOpts.CUDA) { 3891 // During CUDA device-side compilation, the aux triple is the 3892 // triple used for host compilation. 3893 if (LangOpts.CUDAIsDevice) 3894 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3895 } 3896 3897 // Set the triple of the host for OpenMP device compile. 3898 if (LangOpts.OpenMPIsDevice) 3899 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3900 3901 // FIXME: Override value name discarding when asan or msan is used because the 3902 // backend passes depend on the name of the alloca in order to print out 3903 // names. 3904 Res.getCodeGenOpts().DiscardValueNames &= 3905 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3906 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3907 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3908 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3909 3910 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3911 Res.getFrontendOpts().ProgramAction); 3912 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3913 Res.getFrontendOpts().ProgramAction); 3914 3915 // Turn on -Wspir-compat for SPIR target. 3916 if (T.isSPIR()) 3917 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3918 3919 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3920 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3921 !Res.getLangOpts()->Sanitize.empty()) { 3922 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3923 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3924 } 3925 3926 // Store the command-line for using in the CodeView backend. 3927 Res.getCodeGenOpts().Argv0 = Argv0; 3928 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 3929 3930 return Success; 3931 } 3932 3933 std::string CompilerInvocation::getModuleHash() const { 3934 // Note: For QoI reasons, the things we use as a hash here should all be 3935 // dumped via the -module-info flag. 3936 using llvm::hash_code; 3937 using llvm::hash_value; 3938 using llvm::hash_combine; 3939 using llvm::hash_combine_range; 3940 3941 // Start the signature with the compiler version. 3942 // FIXME: We'd rather use something more cryptographically sound than 3943 // CityHash, but this will do for now. 3944 hash_code code = hash_value(getClangFullRepositoryVersion()); 3945 3946 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3947 // and getClangFullRepositoryVersion() doesn't include git revision. 3948 code = hash_combine(code, serialization::VERSION_MAJOR, 3949 serialization::VERSION_MINOR); 3950 3951 // Extend the signature with the language options 3952 #define LANGOPT(Name, Bits, Default, Description) \ 3953 code = hash_combine(code, LangOpts->Name); 3954 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3955 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3956 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3957 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3958 #include "clang/Basic/LangOptions.def" 3959 3960 for (StringRef Feature : LangOpts->ModuleFeatures) 3961 code = hash_combine(code, Feature); 3962 3963 code = hash_combine(code, LangOpts->ObjCRuntime); 3964 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 3965 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 3966 3967 // Extend the signature with the target options. 3968 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3969 TargetOpts->TuneCPU, TargetOpts->ABI); 3970 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3971 code = hash_combine(code, FeatureAsWritten); 3972 3973 // Extend the signature with preprocessor options. 3974 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3975 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3976 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3977 3978 for (const auto &I : getPreprocessorOpts().Macros) { 3979 // If we're supposed to ignore this macro for the purposes of modules, 3980 // don't put it into the hash. 3981 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3982 // Check whether we're ignoring this macro. 3983 StringRef MacroDef = I.first; 3984 if (hsOpts.ModulesIgnoreMacros.count( 3985 llvm::CachedHashString(MacroDef.split('=').first))) 3986 continue; 3987 } 3988 3989 code = hash_combine(code, I.first, I.second); 3990 } 3991 3992 // Extend the signature with the sysroot and other header search options. 3993 code = hash_combine(code, hsOpts.Sysroot, 3994 hsOpts.ModuleFormat, 3995 hsOpts.UseDebugInfo, 3996 hsOpts.UseBuiltinIncludes, 3997 hsOpts.UseStandardSystemIncludes, 3998 hsOpts.UseStandardCXXIncludes, 3999 hsOpts.UseLibcxx, 4000 hsOpts.ModulesValidateDiagnosticOptions); 4001 code = hash_combine(code, hsOpts.ResourceDir); 4002 4003 if (hsOpts.ModulesStrictContextHash) { 4004 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4005 hsOpts.SystemHeaderPrefixes.end()); 4006 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4007 hsOpts.UserEntries.end()); 4008 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4009 hsOpts.UserEntries.size(), UEC); 4010 4011 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4012 #define DIAGOPT(Name, Bits, Default) \ 4013 code = hash_combine(code, diagOpts.Name); 4014 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4015 code = hash_combine(code, diagOpts.get##Name()); 4016 #include "clang/Basic/DiagnosticOptions.def" 4017 #undef DIAGOPT 4018 #undef ENUM_DIAGOPT 4019 } 4020 4021 // Extend the signature with the user build path. 4022 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4023 4024 // Extend the signature with the module file extensions. 4025 const FrontendOptions &frontendOpts = getFrontendOpts(); 4026 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4027 code = ext->hashExtension(code); 4028 } 4029 4030 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4031 // affects the debug info in the PCM. 4032 if (getCodeGenOpts().DebugTypeExtRefs) 4033 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4034 code = hash_combine(code, KeyValue.first, KeyValue.second); 4035 4036 // Extend the signature with the enabled sanitizers, if at least one is 4037 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4038 SanitizerSet SanHash = LangOpts->Sanitize; 4039 SanHash.clear(getPPTransparentSanitizers()); 4040 if (!SanHash.empty()) 4041 code = hash_combine(code, SanHash.Mask); 4042 4043 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4044 } 4045 4046 void CompilerInvocation::generateCC1CommandLine( 4047 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4048 #define OPTION_WITH_MARSHALLING( \ 4049 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4050 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4051 TYPE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 4052 if (((FLAGS) & options::CC1Option) && \ 4053 (ALWAYS_EMIT || EXTRACTOR(this->KEYPATH) != (DEFAULT_VALUE))) { \ 4054 DENORMALIZER(Args, SPELLING, SA, TABLE_INDEX, EXTRACTOR(this->KEYPATH)); \ 4055 } 4056 4057 #define OPTION_WITH_MARSHALLING_BOOLEAN( \ 4058 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4059 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4060 TYPE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX, NEG_ID, \ 4061 NEG_SPELLING) \ 4062 if (((FLAGS)&options::CC1Option) && \ 4063 (ALWAYS_EMIT || EXTRACTOR(this->KEYPATH) != DEFAULT_VALUE)) { \ 4064 DENORMALIZER(Args, SPELLING, NEG_SPELLING, SA, TABLE_INDEX, \ 4065 EXTRACTOR(this->KEYPATH)); \ 4066 } 4067 4068 #include "clang/Driver/Options.inc" 4069 #undef OPTION_WITH_MARSHALLING_BOOLEAN 4070 #undef OPTION_WITH_MARSHALLING 4071 } 4072 4073 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4074 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4075 DiagnosticsEngine &Diags) { 4076 return createVFSFromCompilerInvocation(CI, Diags, 4077 llvm::vfs::getRealFileSystem()); 4078 } 4079 4080 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4081 clang::createVFSFromCompilerInvocation( 4082 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4083 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4084 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4085 return BaseFS; 4086 4087 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4088 // earlier vfs files are on the bottom 4089 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4090 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4091 Result->getBufferForFile(File); 4092 if (!Buffer) { 4093 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4094 continue; 4095 } 4096 4097 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4098 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4099 /*DiagContext*/ nullptr, Result); 4100 if (!FS) { 4101 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4102 continue; 4103 } 4104 4105 Result = FS; 4106 } 4107 return Result; 4108 } 4109