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