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<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 129 unsigned TableIndex, 130 const ArgList &Args, 131 DiagnosticsEngine &Diags) { 132 assert(TableIndex < SimpleEnumValueTablesSize); 133 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 134 135 auto *Arg = Args.getLastArg(Opt); 136 if (!Arg) 137 return None; 138 139 StringRef ArgValue = Arg->getValue(); 140 for (int I = 0, E = Table.Size; I != E; ++I) 141 if (ArgValue == Table.Table[I].Name) 142 return Table.Table[I].Value; 143 144 Diags.Report(diag::err_drv_invalid_value) 145 << Arg->getAsString(Args) << ArgValue; 146 return None; 147 } 148 149 static const char *denormalizeSimpleEnum(CompilerInvocation::StringAllocator SA, 150 unsigned TableIndex, unsigned Value) { 151 assert(TableIndex < SimpleEnumValueTablesSize); 152 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 153 for (int I = 0, E = Table.Size; I != E; ++I) 154 if (Value == Table.Table[I].Value) 155 return Table.Table[I].Name; 156 157 llvm_unreachable("The simple enum value was not correctly defined in " 158 "the tablegen option description"); 159 } 160 161 static const char *denormalizeString(CompilerInvocation::StringAllocator SA, 162 unsigned TableIndex, 163 const std::string &Value) { 164 return SA(Value); 165 } 166 167 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 168 const ArgList &Args, 169 DiagnosticsEngine &Diags) { 170 auto *Arg = Args.getLastArg(Opt); 171 if (!Arg) 172 return None; 173 return llvm::Triple::normalize(Arg->getValue()); 174 } 175 176 //===----------------------------------------------------------------------===// 177 // Deserialization (from args) 178 //===----------------------------------------------------------------------===// 179 180 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 181 DiagnosticsEngine &Diags) { 182 unsigned DefaultOpt = llvm::CodeGenOpt::None; 183 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 184 DefaultOpt = llvm::CodeGenOpt::Default; 185 186 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 187 if (A->getOption().matches(options::OPT_O0)) 188 return llvm::CodeGenOpt::None; 189 190 if (A->getOption().matches(options::OPT_Ofast)) 191 return llvm::CodeGenOpt::Aggressive; 192 193 assert(A->getOption().matches(options::OPT_O)); 194 195 StringRef S(A->getValue()); 196 if (S == "s" || S == "z") 197 return llvm::CodeGenOpt::Default; 198 199 if (S == "g") 200 return llvm::CodeGenOpt::Less; 201 202 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 203 } 204 205 return DefaultOpt; 206 } 207 208 static unsigned getOptimizationLevelSize(ArgList &Args) { 209 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 210 if (A->getOption().matches(options::OPT_O)) { 211 switch (A->getValue()[0]) { 212 default: 213 return 0; 214 case 's': 215 return 1; 216 case 'z': 217 return 2; 218 } 219 } 220 } 221 return 0; 222 } 223 224 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 225 OptSpecifier GroupWithValue, 226 std::vector<std::string> &Diagnostics) { 227 for (auto *A : Args.filtered(Group)) { 228 if (A->getOption().getKind() == Option::FlagClass) { 229 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 230 // its name (minus the "W" or "R" at the beginning) to the warning list. 231 Diagnostics.push_back( 232 std::string(A->getOption().getName().drop_front(1))); 233 } else if (A->getOption().matches(GroupWithValue)) { 234 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 235 Diagnostics.push_back( 236 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 237 } else { 238 // Otherwise, add its value (for OPT_W_Joined and similar). 239 for (const auto *Arg : A->getValues()) 240 Diagnostics.emplace_back(Arg); 241 } 242 } 243 } 244 245 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 246 // it won't verify the input. 247 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 248 DiagnosticsEngine *Diags); 249 250 static void getAllNoBuiltinFuncValues(ArgList &Args, 251 std::vector<std::string> &Funcs) { 252 SmallVector<const char *, 8> Values; 253 for (const auto &Arg : Args) { 254 const Option &O = Arg->getOption(); 255 if (O.matches(options::OPT_fno_builtin_)) { 256 const char *FuncName = Arg->getValue(); 257 if (Builtin::Context::isBuiltinFunc(FuncName)) 258 Values.push_back(FuncName); 259 } 260 } 261 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 262 } 263 264 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 265 DiagnosticsEngine &Diags) { 266 bool Success = true; 267 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 268 StringRef Name = A->getValue(); 269 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 270 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 271 .Case(CMDFLAG, NAME##Model) 272 #include "clang/StaticAnalyzer/Core/Analyses.def" 273 .Default(NumStores); 274 if (Value == NumStores) { 275 Diags.Report(diag::err_drv_invalid_value) 276 << A->getAsString(Args) << Name; 277 Success = false; 278 } else { 279 Opts.AnalysisStoreOpt = Value; 280 } 281 } 282 283 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 284 StringRef Name = A->getValue(); 285 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 286 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 287 .Case(CMDFLAG, NAME##Model) 288 #include "clang/StaticAnalyzer/Core/Analyses.def" 289 .Default(NumConstraints); 290 if (Value == NumConstraints) { 291 Diags.Report(diag::err_drv_invalid_value) 292 << A->getAsString(Args) << Name; 293 Success = false; 294 } else { 295 Opts.AnalysisConstraintsOpt = Value; 296 } 297 } 298 299 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 300 StringRef Name = A->getValue(); 301 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 302 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 303 .Case(CMDFLAG, PD_##NAME) 304 #include "clang/StaticAnalyzer/Core/Analyses.def" 305 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 306 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 307 Diags.Report(diag::err_drv_invalid_value) 308 << A->getAsString(Args) << Name; 309 Success = false; 310 } else { 311 Opts.AnalysisDiagOpt = Value; 312 } 313 } 314 315 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 316 StringRef Name = A->getValue(); 317 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 318 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 319 .Case(CMDFLAG, NAME) 320 #include "clang/StaticAnalyzer/Core/Analyses.def" 321 .Default(NumPurgeModes); 322 if (Value == NumPurgeModes) { 323 Diags.Report(diag::err_drv_invalid_value) 324 << A->getAsString(Args) << Name; 325 Success = false; 326 } else { 327 Opts.AnalysisPurgeOpt = Value; 328 } 329 } 330 331 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 332 StringRef Name = A->getValue(); 333 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 334 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 335 .Case(CMDFLAG, NAME) 336 #include "clang/StaticAnalyzer/Core/Analyses.def" 337 .Default(NumInliningModes); 338 if (Value == NumInliningModes) { 339 Diags.Report(diag::err_drv_invalid_value) 340 << A->getAsString(Args) << Name; 341 Success = false; 342 } else { 343 Opts.InliningMode = Value; 344 } 345 } 346 347 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 348 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 349 Opts.ShowCheckerHelpDeveloper = 350 Args.hasArg(OPT_analyzer_checker_help_developer); 351 352 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 353 Opts.ShowCheckerOptionAlphaList = 354 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 355 Opts.ShowCheckerOptionDeveloperList = 356 Args.hasArg(OPT_analyzer_checker_option_help_developer); 357 358 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 359 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 360 Opts.ShouldEmitErrorsOnInvalidConfigValue = 361 /* negated */!llvm::StringSwitch<bool>( 362 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 363 .Case("true", true) 364 .Case("false", false) 365 .Default(false); 366 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 367 368 Opts.visualizeExplodedGraphWithGraphViz = 369 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 370 Opts.DumpExplodedGraphTo = 371 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 372 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 373 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 374 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 375 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 376 Opts.AnalyzeNestedBlocks = 377 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 378 Opts.AnalyzeSpecificFunction = 379 std::string(Args.getLastArgValue(OPT_analyze_function)); 380 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 381 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 382 Opts.maxBlockVisitOnPath = 383 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 384 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 385 Opts.InlineMaxStackDepth = 386 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 387 Opts.InlineMaxStackDepth, Diags); 388 389 Opts.CheckersAndPackages.clear(); 390 for (const Arg *A : 391 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 392 A->claim(); 393 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 394 // We can have a list of comma separated checker names, e.g: 395 // '-analyzer-checker=cocoa,unix' 396 StringRef CheckerAndPackageList = A->getValue(); 397 SmallVector<StringRef, 16> CheckersAndPackages; 398 CheckerAndPackageList.split(CheckersAndPackages, ","); 399 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 400 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 401 IsEnabled); 402 } 403 404 // Go through the analyzer configuration options. 405 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 406 407 // We can have a list of comma separated config names, e.g: 408 // '-analyzer-config key1=val1,key2=val2' 409 StringRef configList = A->getValue(); 410 SmallVector<StringRef, 4> configVals; 411 configList.split(configVals, ","); 412 for (const auto &configVal : configVals) { 413 StringRef key, val; 414 std::tie(key, val) = configVal.split("="); 415 if (val.empty()) { 416 Diags.Report(SourceLocation(), 417 diag::err_analyzer_config_no_value) << configVal; 418 Success = false; 419 break; 420 } 421 if (val.find('=') != StringRef::npos) { 422 Diags.Report(SourceLocation(), 423 diag::err_analyzer_config_multiple_values) 424 << configVal; 425 Success = false; 426 break; 427 } 428 429 // TODO: Check checker options too, possibly in CheckerRegistry. 430 // Leave unknown non-checker configs unclaimed. 431 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 432 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 433 Diags.Report(diag::err_analyzer_config_unknown) << key; 434 continue; 435 } 436 437 A->claim(); 438 Opts.Config[key] = std::string(val); 439 } 440 } 441 442 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 443 parseAnalyzerConfigs(Opts, &Diags); 444 else 445 parseAnalyzerConfigs(Opts, nullptr); 446 447 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 448 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 449 if (i != 0) 450 os << " "; 451 os << Args.getArgString(i); 452 } 453 os.flush(); 454 455 return Success; 456 } 457 458 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 459 StringRef OptionName, StringRef DefaultVal) { 460 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 461 } 462 463 static void initOption(AnalyzerOptions::ConfigTable &Config, 464 DiagnosticsEngine *Diags, 465 StringRef &OptionField, StringRef Name, 466 StringRef DefaultVal) { 467 // String options may be known to invalid (e.g. if the expected string is a 468 // file name, but the file does not exist), those will have to be checked in 469 // parseConfigs. 470 OptionField = getStringOption(Config, Name, DefaultVal); 471 } 472 473 static void initOption(AnalyzerOptions::ConfigTable &Config, 474 DiagnosticsEngine *Diags, 475 bool &OptionField, StringRef Name, bool DefaultVal) { 476 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 477 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 478 .Case("true", true) 479 .Case("false", false) 480 .Default(None); 481 482 if (!PossiblyInvalidVal) { 483 if (Diags) 484 Diags->Report(diag::err_analyzer_config_invalid_input) 485 << Name << "a boolean"; 486 else 487 OptionField = DefaultVal; 488 } else 489 OptionField = PossiblyInvalidVal.getValue(); 490 } 491 492 static void initOption(AnalyzerOptions::ConfigTable &Config, 493 DiagnosticsEngine *Diags, 494 unsigned &OptionField, StringRef Name, 495 unsigned DefaultVal) { 496 497 OptionField = DefaultVal; 498 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 499 .getAsInteger(0, OptionField); 500 if (Diags && HasFailed) 501 Diags->Report(diag::err_analyzer_config_invalid_input) 502 << Name << "an unsigned"; 503 } 504 505 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 506 DiagnosticsEngine *Diags) { 507 // TODO: There's no need to store the entire configtable, it'd be plenty 508 // enough tostore checker options. 509 510 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 511 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 512 513 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 514 SHALLOW_VAL, DEEP_VAL) \ 515 switch (AnOpts.getUserMode()) { \ 516 case UMK_Shallow: \ 517 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 518 break; \ 519 case UMK_Deep: \ 520 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 521 break; \ 522 } \ 523 524 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 525 #undef ANALYZER_OPTION 526 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 527 528 // At this point, AnalyzerOptions is configured. Let's validate some options. 529 530 // FIXME: Here we try to validate the silenced checkers or packages are valid. 531 // The current approach only validates the registered checkers which does not 532 // contain the runtime enabled checkers and optimally we would validate both. 533 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 534 std::vector<StringRef> Checkers = 535 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 536 std::vector<StringRef> Packages = 537 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 538 539 SmallVector<StringRef, 16> CheckersAndPackages; 540 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 541 542 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 543 if (Diags) { 544 bool IsChecker = CheckerOrPackage.contains('.'); 545 bool IsValidName = 546 IsChecker 547 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 548 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 549 550 if (!IsValidName) 551 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 552 << CheckerOrPackage; 553 } 554 555 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 556 } 557 } 558 559 if (!Diags) 560 return; 561 562 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 563 Diags->Report(diag::err_analyzer_config_invalid_input) 564 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 565 566 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 567 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 568 << "a filename"; 569 570 if (!AnOpts.ModelPath.empty() && 571 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 572 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 573 << "a filename"; 574 } 575 576 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 577 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 578 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 579 return true; 580 } 581 582 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 583 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 584 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 585 } 586 587 /// Create a new Regex instance out of the string value in \p RpassArg. 588 /// It returns a pointer to the newly generated Regex instance. 589 static std::shared_ptr<llvm::Regex> 590 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 591 Arg *RpassArg) { 592 StringRef Val = RpassArg->getValue(); 593 std::string RegexError; 594 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 595 if (!Pattern->isValid(RegexError)) { 596 Diags.Report(diag::err_drv_optimization_remark_pattern) 597 << RegexError << RpassArg->getAsString(Args); 598 Pattern.reset(); 599 } 600 return Pattern; 601 } 602 603 static bool parseDiagnosticLevelMask(StringRef FlagName, 604 const std::vector<std::string> &Levels, 605 DiagnosticsEngine *Diags, 606 DiagnosticLevelMask &M) { 607 bool Success = true; 608 for (const auto &Level : Levels) { 609 DiagnosticLevelMask const PM = 610 llvm::StringSwitch<DiagnosticLevelMask>(Level) 611 .Case("note", DiagnosticLevelMask::Note) 612 .Case("remark", DiagnosticLevelMask::Remark) 613 .Case("warning", DiagnosticLevelMask::Warning) 614 .Case("error", DiagnosticLevelMask::Error) 615 .Default(DiagnosticLevelMask::None); 616 if (PM == DiagnosticLevelMask::None) { 617 Success = false; 618 if (Diags) 619 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 620 } 621 M = M | PM; 622 } 623 return Success; 624 } 625 626 static void parseSanitizerKinds(StringRef FlagName, 627 const std::vector<std::string> &Sanitizers, 628 DiagnosticsEngine &Diags, SanitizerSet &S) { 629 for (const auto &Sanitizer : Sanitizers) { 630 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 631 if (K == SanitizerMask()) 632 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 633 else 634 S.set(K, true); 635 } 636 } 637 638 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 639 ArgList &Args, DiagnosticsEngine &D, 640 XRayInstrSet &S) { 641 llvm::SmallVector<StringRef, 2> BundleParts; 642 llvm::SplitString(Bundle, BundleParts, ","); 643 for (const auto &B : BundleParts) { 644 auto Mask = parseXRayInstrValue(B); 645 if (Mask == XRayInstrKind::None) 646 if (B != "none") 647 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 648 else 649 S.Mask = Mask; 650 else if (Mask == XRayInstrKind::All) 651 S.Mask = Mask; 652 else 653 S.set(Mask, true); 654 } 655 } 656 657 // Set the profile kind for fprofile-instrument. 658 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 659 DiagnosticsEngine &Diags) { 660 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 661 if (A == nullptr) 662 return; 663 StringRef S = A->getValue(); 664 unsigned I = llvm::StringSwitch<unsigned>(S) 665 .Case("none", CodeGenOptions::ProfileNone) 666 .Case("clang", CodeGenOptions::ProfileClangInstr) 667 .Case("llvm", CodeGenOptions::ProfileIRInstr) 668 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 669 .Default(~0U); 670 if (I == ~0U) { 671 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 672 << S; 673 return; 674 } 675 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 676 Opts.setProfileInstr(Instrumentor); 677 } 678 679 // Set the profile kind using fprofile-instrument-use-path. 680 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 681 const Twine &ProfileName) { 682 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 683 // In error, return silently and let Clang PGOUse report the error message. 684 if (auto E = ReaderOrErr.takeError()) { 685 llvm::consumeError(std::move(E)); 686 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 687 return; 688 } 689 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 690 std::move(ReaderOrErr.get()); 691 if (PGOReader->isIRLevelProfile()) { 692 if (PGOReader->hasCSIRLevelProfile()) 693 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 694 else 695 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 696 } else 697 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 698 } 699 700 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 701 DiagnosticsEngine &Diags, 702 const TargetOptions &TargetOpts, 703 const FrontendOptions &FrontendOpts) { 704 bool Success = true; 705 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 706 707 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 708 // TODO: This could be done in Driver 709 unsigned MaxOptLevel = 3; 710 if (OptimizationLevel > MaxOptLevel) { 711 // If the optimization level is not supported, fall back on the default 712 // optimization 713 Diags.Report(diag::warn_drv_optimization_value) 714 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 715 OptimizationLevel = MaxOptLevel; 716 } 717 Opts.OptimizationLevel = OptimizationLevel; 718 719 // At O0 we want to fully disable inlining outside of cases marked with 720 // 'alwaysinline' that are required for correctness. 721 Opts.setInlining((Opts.OptimizationLevel == 0) 722 ? CodeGenOptions::OnlyAlwaysInlining 723 : CodeGenOptions::NormalInlining); 724 // Explicit inlining flags can disable some or all inlining even at 725 // optimization levels above zero. 726 if (Arg *InlineArg = Args.getLastArg( 727 options::OPT_finline_functions, options::OPT_finline_hint_functions, 728 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 729 if (Opts.OptimizationLevel > 0) { 730 const Option &InlineOpt = InlineArg->getOption(); 731 if (InlineOpt.matches(options::OPT_finline_functions)) 732 Opts.setInlining(CodeGenOptions::NormalInlining); 733 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 734 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 735 else 736 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 737 } 738 } 739 740 Opts.ExperimentalNewPassManager = Args.hasFlag( 741 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 742 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 743 744 Opts.DebugPassManager = 745 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 746 /* Default */ false); 747 748 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 749 StringRef Name = A->getValue(); 750 if (Name == "Accelerate") 751 Opts.setVecLib(CodeGenOptions::Accelerate); 752 else if (Name == "libmvec") 753 Opts.setVecLib(CodeGenOptions::LIBMVEC); 754 else if (Name == "MASSV") 755 Opts.setVecLib(CodeGenOptions::MASSV); 756 else if (Name == "SVML") 757 Opts.setVecLib(CodeGenOptions::SVML); 758 else if (Name == "none") 759 Opts.setVecLib(CodeGenOptions::NoLibrary); 760 else 761 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 762 } 763 764 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 765 unsigned Val = 766 llvm::StringSwitch<unsigned>(A->getValue()) 767 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 768 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 769 .Case("constructor", codegenoptions::DebugInfoConstructor) 770 .Case("limited", codegenoptions::LimitedDebugInfo) 771 .Case("standalone", codegenoptions::FullDebugInfo) 772 .Case("unused-types", codegenoptions::UnusedTypeInfo) 773 .Default(~0U); 774 if (Val == ~0U) 775 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 776 << A->getValue(); 777 else 778 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 779 } 780 // If -fuse-ctor-homing is set and limited debug info is already on, then use 781 // constructor homing. 782 if (Args.getLastArg(OPT_fuse_ctor_homing)) 783 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 784 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 785 786 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 787 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 788 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 789 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 790 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 791 .Default(~0U); 792 if (Val == ~0U) 793 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 794 << A->getValue(); 795 else 796 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 797 } 798 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 799 Opts.DebugColumnInfo = !Args.hasArg(OPT_gno_column_info); 800 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 801 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 802 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 803 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 804 Opts.VirtualFunctionElimination = 805 Args.hasArg(OPT_fvirtual_function_elimination); 806 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 807 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 808 Opts.SplitDwarfOutput = 809 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 810 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 811 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 812 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 813 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 814 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 815 Opts.ForceDwarfFrameSection = Args.hasArg(OPT_fforce_dwarf_frame); 816 817 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 818 auto Split = StringRef(Arg).split('='); 819 Opts.DebugPrefixMap.insert( 820 {std::string(Split.first), std::string(Split.second)}); 821 } 822 823 if (const Arg *A = 824 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 825 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 826 827 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 828 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 829 830 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 831 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 832 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 833 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 834 835 llvm::Triple T(TargetOpts.Triple); 836 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 837 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 838 Opts.EmitCallSiteInfo = true; 839 840 Opts.ValueTrackingVariableLocations = 841 Args.hasArg(OPT_fexperimental_debug_variable_locations); 842 843 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 844 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 845 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 846 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 847 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 848 OPT_fuse_register_sized_bitfield_access); 849 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 850 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 851 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 852 Args.hasArg(OPT_new_struct_path_tbaa); 853 Opts.FineGrainedBitfieldAccesses = 854 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 855 OPT_fno_fine_grained_bitfield_accesses, false); 856 Opts.DwarfDebugFlags = 857 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 858 Opts.RecordCommandLine = 859 std::string(Args.getLastArgValue(OPT_record_command_line)); 860 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 861 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 862 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 863 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 864 Opts.OptimizeSize = getOptimizationLevelSize(Args); 865 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 866 Args.hasArg(OPT_ffreestanding)); 867 if (Opts.SimplifyLibCalls) 868 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 869 Opts.UnrollLoops = 870 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 871 (Opts.OptimizationLevel > 1)); 872 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 873 874 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 875 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 876 Opts.SampleProfileFile = 877 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 878 Opts.DebugInfoForProfiling = Args.hasFlag( 879 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 880 Opts.DebugNameTable = static_cast<unsigned>( 881 Args.hasArg(OPT_ggnu_pubnames) 882 ? llvm::DICompileUnit::DebugNameTableKind::GNU 883 : Args.hasArg(OPT_gpubnames) 884 ? llvm::DICompileUnit::DebugNameTableKind::Default 885 : llvm::DICompileUnit::DebugNameTableKind::None); 886 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 887 888 setPGOInstrumentor(Opts, Args, Diags); 889 Opts.AtomicProfileUpdate = Args.hasArg(OPT_fprofile_update_EQ); 890 Opts.InstrProfileOutput = 891 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 892 Opts.ProfileInstrumentUsePath = 893 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 894 if (!Opts.ProfileInstrumentUsePath.empty()) 895 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 896 Opts.ProfileRemappingFile = 897 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 898 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 899 Diags.Report(diag::err_drv_argument_only_allowed_with) 900 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 901 << "-fexperimental-new-pass-manager"; 902 } 903 904 Opts.CoverageMapping = 905 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 906 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 907 Opts.AsmVerbose = !Args.hasArg(OPT_fno_verbose_asm); 908 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 909 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 910 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 911 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 912 Opts.RegisterGlobalDtorsWithAtExit = 913 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 914 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 915 Opts.CodeModel = TargetOpts.CodeModel; 916 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 917 918 // Handle -mframe-pointer option. 919 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 920 CodeGenOptions::FramePointerKind FP; 921 StringRef Name = A->getValue(); 922 bool ValidFP = true; 923 if (Name == "none") 924 FP = CodeGenOptions::FramePointerKind::None; 925 else if (Name == "non-leaf") 926 FP = CodeGenOptions::FramePointerKind::NonLeaf; 927 else if (Name == "all") 928 FP = CodeGenOptions::FramePointerKind::All; 929 else { 930 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 931 Success = false; 932 ValidFP = false; 933 } 934 if (ValidFP) 935 Opts.setFramePointer(FP); 936 } 937 938 Opts.DisableFree = Args.hasArg(OPT_disable_free); 939 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 940 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 941 Opts.NoEscapingBlockTailCalls = 942 Args.hasArg(OPT_fno_escaping_block_tail_calls); 943 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 944 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 945 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 946 Args.hasArg(OPT_cl_fast_relaxed_math); 947 Opts.LimitFloatPrecision = 948 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 949 Opts.CorrectlyRoundedDivSqrt = 950 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 951 Opts.UniformWGSize = 952 Args.hasArg(OPT_cl_uniform_work_group_size); 953 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 954 Opts.StrictFloatCastOverflow = 955 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 956 957 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_fno_zero_initialized_in_bss); 958 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 959 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 960 Opts.SmallDataLimit = 961 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 962 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 963 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 964 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 965 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 966 Opts.IncrementalLinkerCompatible = 967 Args.hasArg(OPT_mincremental_linker_compatible); 968 Opts.PIECopyRelocations = 969 Args.hasArg(OPT_mpie_copy_relocations); 970 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 971 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 972 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 973 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 974 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 975 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 976 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 977 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 978 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 979 Opts.ThreadModel = 980 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 981 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 982 Diags.Report(diag::err_drv_invalid_value) 983 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 984 << Opts.ThreadModel; 985 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 986 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 987 988 Opts.BBSections = 989 std::string(Args.getLastArgValue(OPT_fbasic_block_sections_EQ, "none")); 990 991 // Basic Block Sections implies Function Sections. 992 Opts.FunctionSections = 993 Args.hasArg(OPT_ffunction_sections) || 994 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 995 996 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 997 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 998 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 999 Opts.UniqueBasicBlockSectionNames = 1000 Args.hasArg(OPT_funique_basic_block_section_names); 1001 Opts.UniqueInternalLinkageNames = 1002 Args.hasArg(OPT_funique_internal_linkage_names); 1003 1004 Opts.SplitMachineFunctions = Args.hasArg(OPT_fsplit_machine_functions); 1005 1006 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 1007 1008 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 1009 1010 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 1011 1012 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 1013 1014 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1015 Opts.PrepareForThinLTO = false; 1016 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1017 StringRef S = A->getValue(); 1018 if (S == "thin") 1019 Opts.PrepareForThinLTO = true; 1020 else if (S != "full") 1021 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1022 } 1023 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 1024 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 1025 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1026 if (IK.getLanguage() != Language::LLVM_IR) 1027 Diags.Report(diag::err_drv_argument_only_allowed_with) 1028 << A->getAsString(Args) << "-x ir"; 1029 Opts.ThinLTOIndexFile = 1030 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1031 } 1032 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1033 Opts.SaveTempsFilePrefix = 1034 llvm::StringSwitch<std::string>(A->getValue()) 1035 .Case("obj", FrontendOpts.OutputFile) 1036 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 1037 1038 Opts.ThinLinkBitcodeFile = 1039 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 1040 1041 // The memory profile runtime appends the pid to make this name more unique. 1042 const char *MemProfileBasename = "memprof.profraw"; 1043 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1044 SmallString<128> Path( 1045 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1046 llvm::sys::path::append(Path, MemProfileBasename); 1047 Opts.MemoryProfileOutput = std::string(Path); 1048 } else if (Args.hasArg(OPT_fmemory_profile)) 1049 Opts.MemoryProfileOutput = MemProfileBasename; 1050 1051 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 1052 1053 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1054 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1055 1056 Opts.PreferVectorWidth = 1057 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1058 1059 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1060 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1061 1062 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1063 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1064 1065 Opts.EmitGcovNotes = Args.hasArg(OPT_ftest_coverage); 1066 Opts.EmitGcovArcs = Args.hasArg(OPT_fprofile_arcs); 1067 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1068 Opts.CoverageDataFile = 1069 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1070 Opts.CoverageNotesFile = 1071 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1072 Opts.ProfileFilterFiles = 1073 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1074 Opts.ProfileExcludeFiles = 1075 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1076 if (Args.hasArg(OPT_coverage_version_EQ)) { 1077 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1078 if (CoverageVersion.size() != 4) { 1079 Diags.Report(diag::err_drv_invalid_value) 1080 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1081 << CoverageVersion; 1082 } else { 1083 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1084 } 1085 } 1086 } 1087 // Handle -fembed-bitcode option. 1088 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1089 StringRef Name = A->getValue(); 1090 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1091 .Case("off", CodeGenOptions::Embed_Off) 1092 .Case("all", CodeGenOptions::Embed_All) 1093 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1094 .Case("marker", CodeGenOptions::Embed_Marker) 1095 .Default(~0U); 1096 if (Model == ~0U) { 1097 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1098 Success = false; 1099 } else 1100 Opts.setEmbedBitcode( 1101 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1102 } 1103 // FIXME: For backend options that are not yet recorded as function 1104 // attributes in the IR, keep track of them so we can embed them in a 1105 // separate data section and use them when building the bitcode. 1106 for (const auto &A : Args) { 1107 // Do not encode output and input. 1108 if (A->getOption().getID() == options::OPT_o || 1109 A->getOption().getID() == options::OPT_INPUT || 1110 A->getOption().getID() == options::OPT_x || 1111 A->getOption().getID() == options::OPT_fembed_bitcode || 1112 A->getOption().matches(options::OPT_W_Group)) 1113 continue; 1114 ArgStringList ASL; 1115 A->render(Args, ASL); 1116 for (const auto &arg : ASL) { 1117 StringRef ArgStr(arg); 1118 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1119 // using \00 to separate each commandline options. 1120 Opts.CmdArgs.push_back('\0'); 1121 } 1122 } 1123 1124 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1125 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1126 Opts.InstrumentFunctionsAfterInlining = 1127 Args.hasArg(OPT_finstrument_functions_after_inlining); 1128 Opts.InstrumentFunctionEntryBare = 1129 Args.hasArg(OPT_finstrument_function_entry_bare); 1130 1131 Opts.XRayInstrumentFunctions = 1132 Args.hasArg(OPT_fxray_instrument); 1133 Opts.XRayAlwaysEmitCustomEvents = 1134 Args.hasArg(OPT_fxray_always_emit_customevents); 1135 Opts.XRayAlwaysEmitTypedEvents = 1136 Args.hasArg(OPT_fxray_always_emit_typedevents); 1137 Opts.XRayInstructionThreshold = 1138 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1139 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1140 Opts.XRayOmitFunctionIndex = Args.hasArg(OPT_fno_xray_function_index); 1141 Opts.XRayTotalFunctionGroups = 1142 getLastArgIntValue(Args, OPT_fxray_function_groups, 1, Diags); 1143 Opts.XRaySelectedFunctionGroup = 1144 getLastArgIntValue(Args, OPT_fxray_selected_function_group, 0, Diags); 1145 1146 auto XRayInstrBundles = 1147 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1148 if (XRayInstrBundles.empty()) 1149 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1150 else 1151 for (const auto &A : XRayInstrBundles) 1152 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1153 Diags, Opts.XRayInstrumentationBundle); 1154 1155 Opts.PatchableFunctionEntryCount = 1156 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1157 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1158 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1159 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1160 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1161 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1162 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1163 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1164 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1165 1166 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1167 StringRef Name = A->getValue(); 1168 if (Name == "full") { 1169 Opts.CFProtectionReturn = 1; 1170 Opts.CFProtectionBranch = 1; 1171 } else if (Name == "return") 1172 Opts.CFProtectionReturn = 1; 1173 else if (Name == "branch") 1174 Opts.CFProtectionBranch = 1; 1175 else if (Name != "none") { 1176 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1177 Success = false; 1178 } 1179 } 1180 1181 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections_EQ)) { 1182 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1183 .Case("none", llvm::DebugCompressionType::None) 1184 .Case("zlib", llvm::DebugCompressionType::Z) 1185 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1186 .Default(llvm::DebugCompressionType::None); 1187 Opts.setCompressDebugSections(DCT); 1188 } 1189 1190 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1191 Opts.DebugCompilationDir = 1192 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1193 for (auto *A : 1194 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1195 CodeGenOptions::BitcodeFileToLink F; 1196 F.Filename = A->getValue(); 1197 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1198 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1199 // When linking CUDA bitcode, propagate function attributes so that 1200 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1201 F.PropagateAttrs = true; 1202 F.Internalize = true; 1203 } 1204 Opts.LinkBitcodeFiles.push_back(F); 1205 } 1206 Opts.SanitizeCoverageType = 1207 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1208 Opts.SanitizeCoverageIndirectCalls = 1209 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1210 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1211 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1212 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1213 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1214 Opts.SanitizeCoverage8bitCounters = 1215 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1216 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1217 Opts.SanitizeCoverageTracePCGuard = 1218 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1219 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1220 Opts.SanitizeCoverageInline8bitCounters = 1221 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1222 Opts.SanitizeCoverageInlineBoolFlag = 1223 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1224 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1225 Opts.SanitizeCoverageStackDepth = 1226 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1227 Opts.SanitizeCoverageAllowlistFiles = 1228 Args.getAllArgValues(OPT_fsanitize_coverage_allowlist); 1229 Opts.SanitizeCoverageBlocklistFiles = 1230 Args.getAllArgValues(OPT_fsanitize_coverage_blocklist); 1231 Opts.SanitizeMemoryTrackOrigins = 1232 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1233 Opts.SanitizeMemoryUseAfterDtor = 1234 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1235 OPT_fno_sanitize_memory_use_after_dtor, 1236 false); 1237 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1238 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1239 Opts.SanitizeCfiICallGeneralizePointers = 1240 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1241 Opts.SanitizeCfiCanonicalJumpTables = 1242 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1243 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1244 if (Arg *A = Args.getLastArg( 1245 OPT_fsanitize_address_poison_custom_array_cookie, 1246 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1247 Opts.SanitizeAddressPoisonCustomArrayCookie = 1248 A->getOption().getID() == 1249 OPT_fsanitize_address_poison_custom_array_cookie; 1250 } 1251 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1252 OPT_fno_sanitize_address_use_after_scope)) { 1253 Opts.SanitizeAddressUseAfterScope = 1254 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1255 } 1256 Opts.SanitizeAddressGlobalsDeadStripping = 1257 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1258 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1259 OPT_fno_sanitize_address_use_odr_indicator)) { 1260 Opts.SanitizeAddressUseOdrIndicator = 1261 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1262 } 1263 Opts.SSPBufferSize = 1264 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1265 1266 Opts.StackProtectorGuard = 1267 std::string(Args.getLastArgValue(OPT_mstack_protector_guard_EQ)); 1268 1269 if (Arg *A = Args.getLastArg(OPT_mstack_protector_guard_offset_EQ)) { 1270 StringRef Val = A->getValue(); 1271 unsigned Offset = Opts.StackProtectorGuardOffset; 1272 Val.getAsInteger(10, Offset); 1273 Opts.StackProtectorGuardOffset = Offset; 1274 } 1275 1276 Opts.StackProtectorGuardReg = 1277 std::string(Args.getLastArgValue(OPT_mstack_protector_guard_reg_EQ, 1278 "none")); 1279 1280 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1281 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1282 StringRef Val = A->getValue(); 1283 unsigned StackAlignment = Opts.StackAlignment; 1284 Val.getAsInteger(10, StackAlignment); 1285 Opts.StackAlignment = StackAlignment; 1286 } 1287 1288 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1289 StringRef Val = A->getValue(); 1290 unsigned StackProbeSize = Opts.StackProbeSize; 1291 Val.getAsInteger(0, StackProbeSize); 1292 Opts.StackProbeSize = StackProbeSize; 1293 } 1294 1295 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1296 1297 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1298 1299 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1300 StringRef Name = A->getValue(); 1301 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1302 .Case("legacy", CodeGenOptions::Legacy) 1303 .Case("non-legacy", CodeGenOptions::NonLegacy) 1304 .Case("mixed", CodeGenOptions::Mixed) 1305 .Default(~0U); 1306 if (Method == ~0U) { 1307 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1308 Success = false; 1309 } else { 1310 Opts.setObjCDispatchMethod( 1311 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1312 } 1313 } 1314 1315 1316 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1317 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1318 1319 if (Args.getLastArg(OPT_femulated_tls) || 1320 Args.getLastArg(OPT_fno_emulated_tls)) { 1321 Opts.ExplicitEmulatedTLS = true; 1322 Opts.EmulatedTLS = 1323 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1324 } 1325 1326 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1327 StringRef Name = A->getValue(); 1328 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1329 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1330 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1331 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1332 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1333 .Default(~0U); 1334 if (Model == ~0U) { 1335 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1336 Success = false; 1337 } else { 1338 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1339 } 1340 } 1341 1342 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1343 1344 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1345 StringRef Val = A->getValue(); 1346 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1347 if (!Opts.FPDenormalMode.isValid()) 1348 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1349 } 1350 1351 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1352 StringRef Val = A->getValue(); 1353 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1354 if (!Opts.FP32DenormalMode.isValid()) 1355 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1356 } 1357 1358 // X86_32 has -fppc-struct-return and -freg-struct-return. 1359 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1360 if (Arg *A = 1361 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1362 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1363 // TODO: We might want to consider enabling these options on AIX in the 1364 // future. 1365 if (T.isOSAIX()) 1366 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1367 << A->getSpelling() << T.str(); 1368 1369 const Option &O = A->getOption(); 1370 if (O.matches(OPT_fpcc_struct_return) || 1371 O.matches(OPT_maix_struct_return)) { 1372 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1373 } else { 1374 assert(O.matches(OPT_freg_struct_return) || 1375 O.matches(OPT_msvr4_struct_return)); 1376 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1377 } 1378 } 1379 1380 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1381 !Args.hasArg(OPT_fvisibility))) 1382 Opts.IgnoreXCOFFVisibility = 1; 1383 1384 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1385 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1386 bool NeedLocTracking = false; 1387 1388 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1389 if (!Opts.OptRecordFile.empty()) 1390 NeedLocTracking = true; 1391 1392 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1393 Opts.OptRecordPasses = A->getValue(); 1394 NeedLocTracking = true; 1395 } 1396 1397 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1398 Opts.OptRecordFormat = A->getValue(); 1399 NeedLocTracking = true; 1400 } 1401 1402 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1403 Opts.OptimizationRemarkPattern = 1404 GenerateOptimizationRemarkRegex(Diags, Args, A); 1405 NeedLocTracking = true; 1406 } 1407 1408 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1409 Opts.OptimizationRemarkMissedPattern = 1410 GenerateOptimizationRemarkRegex(Diags, Args, A); 1411 NeedLocTracking = true; 1412 } 1413 1414 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1415 Opts.OptimizationRemarkAnalysisPattern = 1416 GenerateOptimizationRemarkRegex(Diags, Args, A); 1417 NeedLocTracking = true; 1418 } 1419 1420 Opts.DiagnosticsWithHotness = 1421 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1422 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1423 bool UsingProfile = UsingSampleProfile || 1424 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1425 1426 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1427 // An IR file will contain PGO as metadata 1428 IK.getLanguage() != Language::LLVM_IR) 1429 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1430 << "-fdiagnostics-show-hotness"; 1431 1432 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1433 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1434 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1435 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1436 << "-fdiagnostics-hotness-threshold="; 1437 1438 // If the user requested to use a sample profile for PGO, then the 1439 // backend will need to track source location information so the profile 1440 // can be incorporated into the IR. 1441 if (UsingSampleProfile) 1442 NeedLocTracking = true; 1443 1444 // If the user requested a flag that requires source locations available in 1445 // the backend, make sure that the backend tracks source location information. 1446 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1447 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1448 1449 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1450 1451 // Parse -fsanitize-recover= arguments. 1452 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1453 parseSanitizerKinds("-fsanitize-recover=", 1454 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1455 Opts.SanitizeRecover); 1456 parseSanitizerKinds("-fsanitize-trap=", 1457 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1458 Opts.SanitizeTrap); 1459 1460 Opts.CudaGpuBinaryFileName = 1461 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1462 1463 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1464 1465 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1466 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1467 1468 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1469 1470 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1471 1472 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1473 1474 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1475 1476 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1477 1478 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1479 1480 Opts.SymbolPartition = 1481 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1482 1483 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1484 Opts.AAPCSBitfieldWidth = 1485 Args.hasFlag(OPT_AAPCSBitfieldWidth, OPT_ForceNoAAPCSBitfieldWidth, true); 1486 1487 Opts.PassByValueIsNoAlias = Args.hasArg(OPT_fpass_by_value_is_noalias); 1488 1489 return Success; 1490 } 1491 1492 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1493 ArgList &Args) { 1494 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1495 Opts.Targets = Args.getAllArgValues(OPT_MT); 1496 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1497 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1498 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1499 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1500 Opts.HeaderIncludeOutputFile = 1501 std::string(Args.getLastArgValue(OPT_header_include_file)); 1502 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1503 if (Args.hasArg(OPT_show_includes)) { 1504 // Writing both /showIncludes and preprocessor output to stdout 1505 // would produce interleaved output, so use stderr for /showIncludes. 1506 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1507 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1508 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1509 else 1510 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1511 } else { 1512 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1513 } 1514 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1515 Opts.ModuleDependencyOutputDir = 1516 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1517 if (Args.hasArg(OPT_MV)) 1518 Opts.OutputFormat = DependencyOutputFormat::NMake; 1519 // Add sanitizer blacklists as extra dependencies. 1520 // They won't be discovered by the regular preprocessor, so 1521 // we let make / ninja to know about this implicit dependency. 1522 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1523 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1524 StringRef Val = A->getValue(); 1525 if (Val.find('=') == StringRef::npos) 1526 Opts.ExtraDeps.push_back(std::string(Val)); 1527 } 1528 if (Opts.IncludeSystemHeaders) { 1529 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1530 StringRef Val = A->getValue(); 1531 if (Val.find('=') == StringRef::npos) 1532 Opts.ExtraDeps.push_back(std::string(Val)); 1533 } 1534 } 1535 } 1536 1537 // Propagate the extra dependencies. 1538 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1539 Opts.ExtraDeps.push_back(A->getValue()); 1540 } 1541 1542 // Only the -fmodule-file=<file> form. 1543 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1544 StringRef Val = A->getValue(); 1545 if (Val.find('=') == StringRef::npos) 1546 Opts.ExtraDeps.push_back(std::string(Val)); 1547 } 1548 } 1549 1550 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1551 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1552 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1553 // Support both clang's -f[no-]color-diagnostics and gcc's 1554 // -f[no-]diagnostics-colors[=never|always|auto]. 1555 enum { 1556 Colors_On, 1557 Colors_Off, 1558 Colors_Auto 1559 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1560 for (auto *A : Args) { 1561 const Option &O = A->getOption(); 1562 if (O.matches(options::OPT_fcolor_diagnostics) || 1563 O.matches(options::OPT_fdiagnostics_color)) { 1564 ShowColors = Colors_On; 1565 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1566 O.matches(options::OPT_fno_diagnostics_color)) { 1567 ShowColors = Colors_Off; 1568 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1569 StringRef Value(A->getValue()); 1570 if (Value == "always") 1571 ShowColors = Colors_On; 1572 else if (Value == "never") 1573 ShowColors = Colors_Off; 1574 else if (Value == "auto") 1575 ShowColors = Colors_Auto; 1576 } 1577 } 1578 return ShowColors == Colors_On || 1579 (ShowColors == Colors_Auto && 1580 llvm::sys::Process::StandardErrHasColors()); 1581 } 1582 1583 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1584 DiagnosticsEngine *Diags) { 1585 bool Success = true; 1586 for (const auto &Prefix : VerifyPrefixes) { 1587 // Every prefix must start with a letter and contain only alphanumeric 1588 // characters, hyphens, and underscores. 1589 auto BadChar = llvm::find_if(Prefix, [](char C) { 1590 return !isAlphanumeric(C) && C != '-' && C != '_'; 1591 }); 1592 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1593 Success = false; 1594 if (Diags) { 1595 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1596 Diags->Report(diag::note_drv_verify_prefix_spelling); 1597 } 1598 } 1599 } 1600 return Success; 1601 } 1602 1603 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1604 DiagnosticsEngine *Diags, 1605 bool DefaultDiagColor) { 1606 bool Success = true; 1607 1608 Opts.DiagnosticLogFile = 1609 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1610 if (Arg *A = 1611 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1612 Opts.DiagnosticSerializationFile = A->getValue(); 1613 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1614 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1615 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1616 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1617 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1618 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1619 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1620 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1621 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1622 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1623 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1624 1625 // Default behavior is to not to show note include stacks. 1626 Opts.ShowNoteIncludeStack = false; 1627 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1628 OPT_fno_diagnostics_show_note_include_stack)) 1629 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1630 Opts.ShowNoteIncludeStack = true; 1631 1632 StringRef ShowOverloads = 1633 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1634 if (ShowOverloads == "best") 1635 Opts.setShowOverloads(Ovl_Best); 1636 else if (ShowOverloads == "all") 1637 Opts.setShowOverloads(Ovl_All); 1638 else { 1639 Success = false; 1640 if (Diags) 1641 Diags->Report(diag::err_drv_invalid_value) 1642 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1643 << ShowOverloads; 1644 } 1645 1646 StringRef ShowCategory = 1647 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1648 if (ShowCategory == "none") 1649 Opts.ShowCategories = 0; 1650 else if (ShowCategory == "id") 1651 Opts.ShowCategories = 1; 1652 else if (ShowCategory == "name") 1653 Opts.ShowCategories = 2; 1654 else { 1655 Success = false; 1656 if (Diags) 1657 Diags->Report(diag::err_drv_invalid_value) 1658 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1659 << ShowCategory; 1660 } 1661 1662 StringRef Format = 1663 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1664 if (Format == "clang") 1665 Opts.setFormat(DiagnosticOptions::Clang); 1666 else if (Format == "msvc") 1667 Opts.setFormat(DiagnosticOptions::MSVC); 1668 else if (Format == "msvc-fallback") { 1669 Opts.setFormat(DiagnosticOptions::MSVC); 1670 Opts.CLFallbackMode = true; 1671 } else if (Format == "vi") 1672 Opts.setFormat(DiagnosticOptions::Vi); 1673 else { 1674 Success = false; 1675 if (Diags) 1676 Diags->Report(diag::err_drv_invalid_value) 1677 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1678 << Format; 1679 } 1680 1681 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1682 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1683 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1684 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1685 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1686 if (Args.hasArg(OPT_verify)) 1687 Opts.VerifyPrefixes.push_back("expected"); 1688 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1689 // then sort it to prepare for fast lookup using std::binary_search. 1690 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1691 Opts.VerifyDiagnostics = false; 1692 Success = false; 1693 } 1694 else 1695 llvm::sort(Opts.VerifyPrefixes); 1696 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1697 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1698 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1699 Diags, DiagMask); 1700 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1701 DiagMask = DiagnosticLevelMask::All; 1702 Opts.setVerifyIgnoreUnexpected(DiagMask); 1703 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1704 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1705 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1706 Opts.MacroBacktraceLimit = 1707 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1708 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1709 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1710 Args, OPT_ftemplate_backtrace_limit, 1711 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1712 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1713 Args, OPT_fconstexpr_backtrace_limit, 1714 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1715 Opts.SpellCheckingLimit = getLastArgIntValue( 1716 Args, OPT_fspell_checking_limit, 1717 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1718 Opts.SnippetLineLimit = getLastArgIntValue( 1719 Args, OPT_fcaret_diagnostics_max_lines, 1720 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1721 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1722 DiagnosticOptions::DefaultTabStop, Diags); 1723 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1724 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1725 if (Diags) 1726 Diags->Report(diag::warn_ignoring_ftabstop_value) 1727 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1728 } 1729 Opts.MessageLength = 1730 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1731 1732 Opts.UndefPrefixes = Args.getAllArgValues(OPT_Wundef_prefix_EQ); 1733 1734 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1735 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1736 1737 return Success; 1738 } 1739 1740 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1741 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1742 } 1743 1744 /// Parse the argument to the -ftest-module-file-extension 1745 /// command-line argument. 1746 /// 1747 /// \returns true on error, false on success. 1748 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1749 std::string &BlockName, 1750 unsigned &MajorVersion, 1751 unsigned &MinorVersion, 1752 bool &Hashed, 1753 std::string &UserInfo) { 1754 SmallVector<StringRef, 5> Args; 1755 Arg.split(Args, ':', 5); 1756 if (Args.size() < 5) 1757 return true; 1758 1759 BlockName = std::string(Args[0]); 1760 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1761 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1762 if (Args[3].getAsInteger(2, Hashed)) return true; 1763 if (Args.size() > 4) 1764 UserInfo = std::string(Args[4]); 1765 return false; 1766 } 1767 1768 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1769 DiagnosticsEngine &Diags, 1770 bool &IsHeaderFile) { 1771 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1772 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1773 switch (A->getOption().getID()) { 1774 default: 1775 llvm_unreachable("Invalid option in group!"); 1776 case OPT_ast_list: 1777 Opts.ProgramAction = frontend::ASTDeclList; break; 1778 case OPT_ast_dump_all_EQ: 1779 case OPT_ast_dump_EQ: { 1780 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1781 .CaseLower("default", ADOF_Default) 1782 .CaseLower("json", ADOF_JSON) 1783 .Default(std::numeric_limits<unsigned>::max()); 1784 1785 if (Val != std::numeric_limits<unsigned>::max()) 1786 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1787 else { 1788 Diags.Report(diag::err_drv_invalid_value) 1789 << A->getAsString(Args) << A->getValue(); 1790 Opts.ASTDumpFormat = ADOF_Default; 1791 } 1792 LLVM_FALLTHROUGH; 1793 } 1794 case OPT_ast_dump: 1795 case OPT_ast_dump_all: 1796 case OPT_ast_dump_lookups: 1797 case OPT_ast_dump_decl_types: 1798 Opts.ProgramAction = frontend::ASTDump; break; 1799 case OPT_ast_print: 1800 Opts.ProgramAction = frontend::ASTPrint; break; 1801 case OPT_ast_view: 1802 Opts.ProgramAction = frontend::ASTView; break; 1803 case OPT_compiler_options_dump: 1804 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1805 case OPT_dump_raw_tokens: 1806 Opts.ProgramAction = frontend::DumpRawTokens; break; 1807 case OPT_dump_tokens: 1808 Opts.ProgramAction = frontend::DumpTokens; break; 1809 case OPT_S: 1810 Opts.ProgramAction = frontend::EmitAssembly; break; 1811 case OPT_emit_llvm_bc: 1812 Opts.ProgramAction = frontend::EmitBC; break; 1813 case OPT_emit_html: 1814 Opts.ProgramAction = frontend::EmitHTML; break; 1815 case OPT_emit_llvm: 1816 Opts.ProgramAction = frontend::EmitLLVM; break; 1817 case OPT_emit_llvm_only: 1818 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1819 case OPT_emit_codegen_only: 1820 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1821 case OPT_emit_obj: 1822 Opts.ProgramAction = frontend::EmitObj; break; 1823 case OPT_fixit_EQ: 1824 Opts.FixItSuffix = A->getValue(); 1825 LLVM_FALLTHROUGH; 1826 case OPT_fixit: 1827 Opts.ProgramAction = frontend::FixIt; break; 1828 case OPT_emit_module: 1829 Opts.ProgramAction = frontend::GenerateModule; break; 1830 case OPT_emit_module_interface: 1831 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1832 case OPT_emit_header_module: 1833 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1834 case OPT_emit_pch: 1835 Opts.ProgramAction = frontend::GeneratePCH; break; 1836 case OPT_emit_interface_stubs: { 1837 StringRef ArgStr = 1838 Args.hasArg(OPT_interface_stub_version_EQ) 1839 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1840 : "experimental-ifs-v2"; 1841 if (ArgStr == "experimental-yaml-elf-v1" || 1842 ArgStr == "experimental-ifs-v1" || 1843 ArgStr == "experimental-tapi-elf-v1") { 1844 std::string ErrorMessage = 1845 "Invalid interface stub format: " + ArgStr.str() + 1846 " is deprecated."; 1847 Diags.Report(diag::err_drv_invalid_value) 1848 << "Must specify a valid interface stub format type, ie: " 1849 "-interface-stub-version=experimental-ifs-v2" 1850 << ErrorMessage; 1851 } else if (!ArgStr.startswith("experimental-ifs-")) { 1852 std::string ErrorMessage = 1853 "Invalid interface stub format: " + ArgStr.str() + "."; 1854 Diags.Report(diag::err_drv_invalid_value) 1855 << "Must specify a valid interface stub format type, ie: " 1856 "-interface-stub-version=experimental-ifs-v2" 1857 << ErrorMessage; 1858 } else { 1859 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1860 } 1861 break; 1862 } 1863 case OPT_init_only: 1864 Opts.ProgramAction = frontend::InitOnly; break; 1865 case OPT_fsyntax_only: 1866 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1867 case OPT_module_file_info: 1868 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1869 case OPT_verify_pch: 1870 Opts.ProgramAction = frontend::VerifyPCH; break; 1871 case OPT_print_preamble: 1872 Opts.ProgramAction = frontend::PrintPreamble; break; 1873 case OPT_E: 1874 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1875 case OPT_templight_dump: 1876 Opts.ProgramAction = frontend::TemplightDump; break; 1877 case OPT_rewrite_macros: 1878 Opts.ProgramAction = frontend::RewriteMacros; break; 1879 case OPT_rewrite_objc: 1880 Opts.ProgramAction = frontend::RewriteObjC; break; 1881 case OPT_rewrite_test: 1882 Opts.ProgramAction = frontend::RewriteTest; break; 1883 case OPT_analyze: 1884 Opts.ProgramAction = frontend::RunAnalysis; break; 1885 case OPT_migrate: 1886 Opts.ProgramAction = frontend::MigrateSource; break; 1887 case OPT_Eonly: 1888 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1889 case OPT_print_dependency_directives_minimized_source: 1890 Opts.ProgramAction = 1891 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1892 break; 1893 } 1894 } 1895 1896 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1897 Opts.Plugins.emplace_back(A->getValue(0)); 1898 Opts.ProgramAction = frontend::PluginAction; 1899 Opts.ActionName = A->getValue(); 1900 } 1901 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1902 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1903 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1904 1905 for (const std::string &Arg : 1906 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1907 std::string BlockName; 1908 unsigned MajorVersion; 1909 unsigned MinorVersion; 1910 bool Hashed; 1911 std::string UserInfo; 1912 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1913 MinorVersion, Hashed, UserInfo)) { 1914 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1915 1916 continue; 1917 } 1918 1919 // Add the testing module file extension. 1920 Opts.ModuleFileExtensions.push_back( 1921 std::make_shared<TestModuleFileExtension>( 1922 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1923 } 1924 1925 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1926 Opts.CodeCompletionAt = 1927 ParsedSourceLocation::FromString(A->getValue()); 1928 if (Opts.CodeCompletionAt.FileName.empty()) 1929 Diags.Report(diag::err_drv_invalid_value) 1930 << A->getAsString(Args) << A->getValue(); 1931 } 1932 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1933 1934 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1935 Opts.Plugins = Args.getAllArgValues(OPT_load); 1936 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1937 Opts.ShowHelp = Args.hasArg(OPT_help); 1938 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1939 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1940 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1941 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1942 Opts.TimeTraceGranularity = getLastArgIntValue( 1943 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1944 Opts.ShowVersion = Args.hasArg(OPT_version); 1945 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1946 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1947 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1948 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1949 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1950 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1951 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1952 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1953 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1954 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1955 Opts.ASTDumpDeclTypes = Args.hasArg(OPT_ast_dump_decl_types); 1956 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1957 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1958 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1959 // Only the -fmodule-file=<file> form. 1960 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1961 StringRef Val = A->getValue(); 1962 if (Val.find('=') == StringRef::npos) 1963 Opts.ModuleFiles.push_back(std::string(Val)); 1964 } 1965 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1966 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1967 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1968 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1969 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1970 1971 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1972 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1973 << "-emit-module"; 1974 1975 Opts.CodeCompleteOpts.IncludeMacros 1976 = Args.hasArg(OPT_code_completion_macros); 1977 Opts.CodeCompleteOpts.IncludeCodePatterns 1978 = Args.hasArg(OPT_code_completion_patterns); 1979 Opts.CodeCompleteOpts.IncludeGlobals 1980 = !Args.hasArg(OPT_no_code_completion_globals); 1981 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1982 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1983 Opts.CodeCompleteOpts.IncludeBriefComments 1984 = Args.hasArg(OPT_code_completion_brief_comments); 1985 Opts.CodeCompleteOpts.IncludeFixIts 1986 = Args.hasArg(OPT_code_completion_with_fixits); 1987 1988 Opts.OverrideRecordLayoutsFile = 1989 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1990 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1991 if (Args.hasArg(OPT_aux_target_cpu)) 1992 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1993 if (Args.hasArg(OPT_aux_target_feature)) 1994 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1995 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1996 1997 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1998 OPT_arcmt_modify, 1999 OPT_arcmt_migrate)) { 2000 switch (A->getOption().getID()) { 2001 default: 2002 llvm_unreachable("missed a case"); 2003 case OPT_arcmt_check: 2004 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 2005 break; 2006 case OPT_arcmt_modify: 2007 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 2008 break; 2009 case OPT_arcmt_migrate: 2010 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 2011 break; 2012 } 2013 } 2014 Opts.MTMigrateDir = 2015 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 2016 Opts.ARCMTMigrateReportOut = 2017 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 2018 Opts.ARCMTMigrateEmitARCErrors 2019 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 2020 2021 if (Args.hasArg(OPT_objcmt_migrate_literals)) 2022 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 2023 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 2024 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 2025 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 2026 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 2027 if (Args.hasArg(OPT_objcmt_migrate_property)) 2028 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 2029 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 2030 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 2031 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 2032 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 2033 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 2034 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 2035 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 2036 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 2037 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 2038 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 2039 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 2040 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 2041 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 2042 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 2043 if (Args.hasArg(OPT_objcmt_atomic_property)) 2044 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 2045 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 2046 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 2047 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 2048 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 2049 if (Args.hasArg(OPT_objcmt_migrate_all)) 2050 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 2051 2052 Opts.ObjCMTWhiteListPath = 2053 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 2054 2055 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2056 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2057 Diags.Report(diag::err_drv_argument_not_allowed_with) 2058 << "ARC migration" << "ObjC migration"; 2059 } 2060 2061 InputKind DashX(Language::Unknown); 2062 if (const Arg *A = Args.getLastArg(OPT_x)) { 2063 StringRef XValue = A->getValue(); 2064 2065 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2066 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2067 bool Preprocessed = XValue.consume_back("-cpp-output"); 2068 bool ModuleMap = XValue.consume_back("-module-map"); 2069 IsHeaderFile = !Preprocessed && !ModuleMap && 2070 XValue != "precompiled-header" && 2071 XValue.consume_back("-header"); 2072 2073 // Principal languages. 2074 DashX = llvm::StringSwitch<InputKind>(XValue) 2075 .Case("c", Language::C) 2076 .Case("cl", Language::OpenCL) 2077 .Case("cuda", Language::CUDA) 2078 .Case("hip", Language::HIP) 2079 .Case("c++", Language::CXX) 2080 .Case("objective-c", Language::ObjC) 2081 .Case("objective-c++", Language::ObjCXX) 2082 .Case("renderscript", Language::RenderScript) 2083 .Default(Language::Unknown); 2084 2085 // "objc[++]-cpp-output" is an acceptable synonym for 2086 // "objective-c[++]-cpp-output". 2087 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2088 DashX = llvm::StringSwitch<InputKind>(XValue) 2089 .Case("objc", Language::ObjC) 2090 .Case("objc++", Language::ObjCXX) 2091 .Default(Language::Unknown); 2092 2093 // Some special cases cannot be combined with suffixes. 2094 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2095 DashX = llvm::StringSwitch<InputKind>(XValue) 2096 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2097 .Case("assembler-with-cpp", Language::Asm) 2098 .Cases("ast", "pcm", "precompiled-header", 2099 InputKind(Language::Unknown, InputKind::Precompiled)) 2100 .Case("ir", Language::LLVM_IR) 2101 .Default(Language::Unknown); 2102 2103 if (DashX.isUnknown()) 2104 Diags.Report(diag::err_drv_invalid_value) 2105 << A->getAsString(Args) << A->getValue(); 2106 2107 if (Preprocessed) 2108 DashX = DashX.getPreprocessed(); 2109 if (ModuleMap) 2110 DashX = DashX.withFormat(InputKind::ModuleMap); 2111 } 2112 2113 // '-' is the default input if none is given. 2114 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2115 Opts.Inputs.clear(); 2116 if (Inputs.empty()) 2117 Inputs.push_back("-"); 2118 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2119 InputKind IK = DashX; 2120 if (IK.isUnknown()) { 2121 IK = FrontendOptions::getInputKindForExtension( 2122 StringRef(Inputs[i]).rsplit('.').second); 2123 // FIXME: Warn on this? 2124 if (IK.isUnknown()) 2125 IK = Language::C; 2126 // FIXME: Remove this hack. 2127 if (i == 0) 2128 DashX = IK; 2129 } 2130 2131 bool IsSystem = false; 2132 2133 // The -emit-module action implicitly takes a module map. 2134 if (Opts.ProgramAction == frontend::GenerateModule && 2135 IK.getFormat() == InputKind::Source) { 2136 IK = IK.withFormat(InputKind::ModuleMap); 2137 IsSystem = Opts.IsSystemModule; 2138 } 2139 2140 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2141 } 2142 2143 return DashX; 2144 } 2145 2146 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2147 void *MainAddr) { 2148 std::string ClangExecutable = 2149 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2150 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2151 } 2152 2153 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2154 const std::string &WorkingDir) { 2155 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2156 Opts.Verbose = Args.hasArg(OPT_v); 2157 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2158 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2159 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2160 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2161 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2162 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2163 2164 // Canonicalize -fmodules-cache-path before storing it. 2165 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2166 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2167 if (WorkingDir.empty()) 2168 llvm::sys::fs::make_absolute(P); 2169 else 2170 llvm::sys::fs::make_absolute(WorkingDir, P); 2171 } 2172 llvm::sys::path::remove_dots(P); 2173 Opts.ModuleCachePath = std::string(P.str()); 2174 2175 Opts.ModuleUserBuildPath = 2176 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2177 // Only the -fmodule-file=<name>=<file> form. 2178 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2179 StringRef Val = A->getValue(); 2180 if (Val.find('=') != StringRef::npos){ 2181 auto Split = Val.split('='); 2182 Opts.PrebuiltModuleFiles.insert( 2183 {std::string(Split.first), std::string(Split.second)}); 2184 } 2185 } 2186 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2187 Opts.AddPrebuiltModulePath(A->getValue()); 2188 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2189 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2190 Opts.ModulesValidateDiagnosticOptions = 2191 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2192 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2193 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2194 Opts.ModuleCachePruneInterval = 2195 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2196 Opts.ModuleCachePruneAfter = 2197 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2198 Opts.ModulesValidateOncePerBuildSession = 2199 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2200 Opts.BuildSessionTimestamp = 2201 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2202 Opts.ModulesValidateSystemHeaders = 2203 Args.hasArg(OPT_fmodules_validate_system_headers); 2204 Opts.ValidateASTInputFilesContent = 2205 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2206 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2207 Opts.ModuleFormat = A->getValue(); 2208 2209 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2210 StringRef MacroDef = A->getValue(); 2211 Opts.ModulesIgnoreMacros.insert( 2212 llvm::CachedHashString(MacroDef.split('=').first)); 2213 } 2214 2215 // Add -I..., -F..., and -index-header-map options in order. 2216 bool IsIndexHeaderMap = false; 2217 bool IsSysrootSpecified = 2218 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2219 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2220 if (A->getOption().matches(OPT_index_header_map)) { 2221 // -index-header-map applies to the next -I or -F. 2222 IsIndexHeaderMap = true; 2223 continue; 2224 } 2225 2226 frontend::IncludeDirGroup Group = 2227 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2228 2229 bool IsFramework = A->getOption().matches(OPT_F); 2230 std::string Path = A->getValue(); 2231 2232 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2233 SmallString<32> Buffer; 2234 llvm::sys::path::append(Buffer, Opts.Sysroot, 2235 llvm::StringRef(A->getValue()).substr(1)); 2236 Path = std::string(Buffer.str()); 2237 } 2238 2239 Opts.AddPath(Path, Group, IsFramework, 2240 /*IgnoreSysroot*/ true); 2241 IsIndexHeaderMap = false; 2242 } 2243 2244 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2245 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2246 for (const auto *A : 2247 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2248 if (A->getOption().matches(OPT_iprefix)) 2249 Prefix = A->getValue(); 2250 else if (A->getOption().matches(OPT_iwithprefix)) 2251 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2252 else 2253 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2254 } 2255 2256 for (const auto *A : Args.filtered(OPT_idirafter)) 2257 Opts.AddPath(A->getValue(), frontend::After, false, true); 2258 for (const auto *A : Args.filtered(OPT_iquote)) 2259 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2260 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2261 Opts.AddPath(A->getValue(), frontend::System, false, 2262 !A->getOption().matches(OPT_iwithsysroot)); 2263 for (const auto *A : Args.filtered(OPT_iframework)) 2264 Opts.AddPath(A->getValue(), frontend::System, true, true); 2265 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2266 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2267 /*IgnoreSysRoot=*/false); 2268 2269 // Add the paths for the various language specific isystem flags. 2270 for (const auto *A : Args.filtered(OPT_c_isystem)) 2271 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2272 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2273 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2274 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2275 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2276 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2277 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2278 2279 // Add the internal paths from a driver that detects standard include paths. 2280 for (const auto *A : 2281 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2282 frontend::IncludeDirGroup Group = frontend::System; 2283 if (A->getOption().matches(OPT_internal_externc_isystem)) 2284 Group = frontend::ExternCSystem; 2285 Opts.AddPath(A->getValue(), Group, false, true); 2286 } 2287 2288 // Add the path prefixes which are implicitly treated as being system headers. 2289 for (const auto *A : 2290 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2291 Opts.AddSystemHeaderPrefix( 2292 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2293 2294 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2295 Opts.AddVFSOverlayFile(A->getValue()); 2296 } 2297 2298 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2299 const llvm::Triple &T, 2300 PreprocessorOptions &PPOpts, 2301 LangStandard::Kind LangStd) { 2302 // Set some properties which depend solely on the input kind; it would be nice 2303 // to move these to the language standard, and have the driver resolve the 2304 // input kind + language standard. 2305 // 2306 // FIXME: Perhaps a better model would be for a single source file to have 2307 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2308 // simultaneously active? 2309 if (IK.getLanguage() == Language::Asm) { 2310 Opts.AsmPreprocessor = 1; 2311 } else if (IK.isObjectiveC()) { 2312 Opts.ObjC = 1; 2313 } 2314 2315 if (LangStd == LangStandard::lang_unspecified) { 2316 // Based on the base language, pick one. 2317 switch (IK.getLanguage()) { 2318 case Language::Unknown: 2319 case Language::LLVM_IR: 2320 llvm_unreachable("Invalid input kind!"); 2321 case Language::OpenCL: 2322 LangStd = LangStandard::lang_opencl10; 2323 break; 2324 case Language::CUDA: 2325 LangStd = LangStandard::lang_cuda; 2326 break; 2327 case Language::Asm: 2328 case Language::C: 2329 #if defined(CLANG_DEFAULT_STD_C) 2330 LangStd = CLANG_DEFAULT_STD_C; 2331 #else 2332 // The PS4 uses C99 as the default C standard. 2333 if (T.isPS4()) 2334 LangStd = LangStandard::lang_gnu99; 2335 else 2336 LangStd = LangStandard::lang_gnu17; 2337 #endif 2338 break; 2339 case Language::ObjC: 2340 #if defined(CLANG_DEFAULT_STD_C) 2341 LangStd = CLANG_DEFAULT_STD_C; 2342 #else 2343 LangStd = LangStandard::lang_gnu11; 2344 #endif 2345 break; 2346 case Language::CXX: 2347 case Language::ObjCXX: 2348 #if defined(CLANG_DEFAULT_STD_CXX) 2349 LangStd = CLANG_DEFAULT_STD_CXX; 2350 #else 2351 LangStd = LangStandard::lang_gnucxx14; 2352 #endif 2353 break; 2354 case Language::RenderScript: 2355 LangStd = LangStandard::lang_c99; 2356 break; 2357 case Language::HIP: 2358 LangStd = LangStandard::lang_hip; 2359 break; 2360 } 2361 } 2362 2363 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2364 Opts.LineComment = Std.hasLineComments(); 2365 Opts.C99 = Std.isC99(); 2366 Opts.C11 = Std.isC11(); 2367 Opts.C17 = Std.isC17(); 2368 Opts.C2x = Std.isC2x(); 2369 Opts.CPlusPlus = Std.isCPlusPlus(); 2370 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2371 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2372 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2373 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2374 Opts.Digraphs = Std.hasDigraphs(); 2375 Opts.GNUMode = Std.isGNUMode(); 2376 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2377 Opts.GNUCVersion = 0; 2378 Opts.HexFloats = Std.hasHexFloats(); 2379 Opts.ImplicitInt = Std.hasImplicitInt(); 2380 2381 // Set OpenCL Version. 2382 Opts.OpenCL = Std.isOpenCL(); 2383 if (LangStd == LangStandard::lang_opencl10) 2384 Opts.OpenCLVersion = 100; 2385 else if (LangStd == LangStandard::lang_opencl11) 2386 Opts.OpenCLVersion = 110; 2387 else if (LangStd == LangStandard::lang_opencl12) 2388 Opts.OpenCLVersion = 120; 2389 else if (LangStd == LangStandard::lang_opencl20) 2390 Opts.OpenCLVersion = 200; 2391 else if (LangStd == LangStandard::lang_opencl30) 2392 Opts.OpenCLVersion = 300; 2393 else if (LangStd == LangStandard::lang_openclcpp) 2394 Opts.OpenCLCPlusPlusVersion = 100; 2395 2396 // OpenCL has some additional defaults. 2397 if (Opts.OpenCL) { 2398 Opts.AltiVec = 0; 2399 Opts.ZVector = 0; 2400 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2401 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2402 Opts.NativeHalfType = 1; 2403 Opts.NativeHalfArgsAndReturns = 1; 2404 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2405 2406 // Include default header file for OpenCL. 2407 if (Opts.IncludeDefaultHeader) { 2408 if (Opts.DeclareOpenCLBuiltins) { 2409 // Only include base header file for builtin types and constants. 2410 PPOpts.Includes.push_back("opencl-c-base.h"); 2411 } else { 2412 PPOpts.Includes.push_back("opencl-c.h"); 2413 } 2414 } 2415 } 2416 2417 Opts.HIP = IK.getLanguage() == Language::HIP; 2418 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2419 if (Opts.CUDA) 2420 // Set default FP_CONTRACT to FAST. 2421 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2422 2423 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2424 if (Opts.RenderScript) { 2425 Opts.NativeHalfType = 1; 2426 Opts.NativeHalfArgsAndReturns = 1; 2427 } 2428 2429 // OpenCL and C++ both have bool, true, false keywords. 2430 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2431 2432 // OpenCL has half keyword 2433 Opts.Half = Opts.OpenCL; 2434 2435 // C++ has wchar_t keyword. 2436 Opts.WChar = Opts.CPlusPlus; 2437 2438 Opts.GNUKeywords = Opts.GNUMode; 2439 Opts.CXXOperatorNames = Opts.CPlusPlus; 2440 2441 Opts.AlignedAllocation = Opts.CPlusPlus17; 2442 2443 Opts.DollarIdents = !Opts.AsmPreprocessor; 2444 2445 // Enable [[]] attributes in C++11 and C2x by default. 2446 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2447 } 2448 2449 /// Attempt to parse a visibility value out of the given argument. 2450 static Visibility parseVisibility(Arg *arg, ArgList &args, 2451 DiagnosticsEngine &diags) { 2452 StringRef value = arg->getValue(); 2453 if (value == "default") { 2454 return DefaultVisibility; 2455 } else if (value == "hidden" || value == "internal") { 2456 return HiddenVisibility; 2457 } else if (value == "protected") { 2458 // FIXME: diagnose if target does not support protected visibility 2459 return ProtectedVisibility; 2460 } 2461 2462 diags.Report(diag::err_drv_invalid_value) 2463 << arg->getAsString(args) << value; 2464 return DefaultVisibility; 2465 } 2466 2467 /// Check if input file kind and language standard are compatible. 2468 static bool IsInputCompatibleWithStandard(InputKind IK, 2469 const LangStandard &S) { 2470 switch (IK.getLanguage()) { 2471 case Language::Unknown: 2472 case Language::LLVM_IR: 2473 llvm_unreachable("should not parse language flags for this input"); 2474 2475 case Language::C: 2476 case Language::ObjC: 2477 case Language::RenderScript: 2478 return S.getLanguage() == Language::C; 2479 2480 case Language::OpenCL: 2481 return S.getLanguage() == Language::OpenCL; 2482 2483 case Language::CXX: 2484 case Language::ObjCXX: 2485 return S.getLanguage() == Language::CXX; 2486 2487 case Language::CUDA: 2488 // FIXME: What -std= values should be permitted for CUDA compilations? 2489 return S.getLanguage() == Language::CUDA || 2490 S.getLanguage() == Language::CXX; 2491 2492 case Language::HIP: 2493 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2494 2495 case Language::Asm: 2496 // Accept (and ignore) all -std= values. 2497 // FIXME: The -std= value is not ignored; it affects the tokenization 2498 // and preprocessing rules if we're preprocessing this asm input. 2499 return true; 2500 } 2501 2502 llvm_unreachable("unexpected input language"); 2503 } 2504 2505 /// Get language name for given input kind. 2506 static const StringRef GetInputKindName(InputKind IK) { 2507 switch (IK.getLanguage()) { 2508 case Language::C: 2509 return "C"; 2510 case Language::ObjC: 2511 return "Objective-C"; 2512 case Language::CXX: 2513 return "C++"; 2514 case Language::ObjCXX: 2515 return "Objective-C++"; 2516 case Language::OpenCL: 2517 return "OpenCL"; 2518 case Language::CUDA: 2519 return "CUDA"; 2520 case Language::RenderScript: 2521 return "RenderScript"; 2522 case Language::HIP: 2523 return "HIP"; 2524 2525 case Language::Asm: 2526 return "Asm"; 2527 case Language::LLVM_IR: 2528 return "LLVM IR"; 2529 2530 case Language::Unknown: 2531 break; 2532 } 2533 llvm_unreachable("unknown input language"); 2534 } 2535 2536 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2537 const TargetOptions &TargetOpts, 2538 PreprocessorOptions &PPOpts, 2539 DiagnosticsEngine &Diags) { 2540 // FIXME: Cleanup per-file based stuff. 2541 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2542 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2543 LangStd = LangStandard::getLangKind(A->getValue()); 2544 if (LangStd == LangStandard::lang_unspecified) { 2545 Diags.Report(diag::err_drv_invalid_value) 2546 << A->getAsString(Args) << A->getValue(); 2547 // Report supported standards with short description. 2548 for (unsigned KindValue = 0; 2549 KindValue != LangStandard::lang_unspecified; 2550 ++KindValue) { 2551 const LangStandard &Std = LangStandard::getLangStandardForKind( 2552 static_cast<LangStandard::Kind>(KindValue)); 2553 if (IsInputCompatibleWithStandard(IK, Std)) { 2554 auto Diag = Diags.Report(diag::note_drv_use_standard); 2555 Diag << Std.getName() << Std.getDescription(); 2556 unsigned NumAliases = 0; 2557 #define LANGSTANDARD(id, name, lang, desc, features) 2558 #define LANGSTANDARD_ALIAS(id, alias) \ 2559 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2560 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2561 #include "clang/Basic/LangStandards.def" 2562 Diag << NumAliases; 2563 #define LANGSTANDARD(id, name, lang, desc, features) 2564 #define LANGSTANDARD_ALIAS(id, alias) \ 2565 if (KindValue == LangStandard::lang_##id) Diag << alias; 2566 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2567 #include "clang/Basic/LangStandards.def" 2568 } 2569 } 2570 } else { 2571 // Valid standard, check to make sure language and standard are 2572 // compatible. 2573 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2574 if (!IsInputCompatibleWithStandard(IK, Std)) { 2575 Diags.Report(diag::err_drv_argument_not_allowed_with) 2576 << A->getAsString(Args) << GetInputKindName(IK); 2577 } 2578 } 2579 } 2580 2581 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2582 Opts.DllExportInlines = false; 2583 2584 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2585 StringRef Name = A->getValue(); 2586 if (Name == "full" || Name == "branch") { 2587 Opts.CFProtectionBranch = 1; 2588 } 2589 } 2590 // -cl-std only applies for OpenCL language standards. 2591 // Override the -std option in this case. 2592 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2593 LangStandard::Kind OpenCLLangStd 2594 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2595 .Cases("cl", "CL", LangStandard::lang_opencl10) 2596 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2597 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2598 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2599 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 2600 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2601 .Default(LangStandard::lang_unspecified); 2602 2603 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2604 Diags.Report(diag::err_drv_invalid_value) 2605 << A->getAsString(Args) << A->getValue(); 2606 } 2607 else 2608 LangStd = OpenCLLangStd; 2609 } 2610 2611 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2612 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2613 if (Opts.SYCL) { 2614 // -sycl-std applies to any SYCL source, not only those containing kernels, 2615 // but also those using the SYCL API 2616 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2617 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2618 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2619 .Default(0U); 2620 2621 if (Opts.SYCLVersion == 0U) { 2622 // User has passed an invalid value to the flag, this is an error 2623 Diags.Report(diag::err_drv_invalid_value) 2624 << A->getAsString(Args) << A->getValue(); 2625 } 2626 } 2627 } 2628 2629 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2630 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2631 2632 llvm::Triple T(TargetOpts.Triple); 2633 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2634 2635 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2636 // This option should be deprecated for CL > 1.0 because 2637 // this option was added for compatibility with OpenCL 1.0. 2638 if (Args.getLastArg(OPT_cl_strict_aliasing) 2639 && Opts.OpenCLVersion > 100) { 2640 Diags.Report(diag::warn_option_invalid_ocl_version) 2641 << Opts.getOpenCLVersionTuple().getAsString() 2642 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2643 } 2644 2645 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2646 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2647 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2648 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2649 // name, as it doesn't seem a useful distinction. 2650 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2651 Opts.GNUKeywords); 2652 2653 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2654 2655 if (Args.hasArg(OPT_fno_operator_names)) 2656 Opts.CXXOperatorNames = 0; 2657 2658 if (Args.hasArg(OPT_fcuda_is_device)) 2659 Opts.CUDAIsDevice = 1; 2660 2661 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2662 Opts.CUDAAllowVariadicFunctions = 1; 2663 2664 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2665 Opts.CUDAHostDeviceConstexpr = 0; 2666 2667 if (Args.hasArg(OPT_fgpu_defer_diag)) 2668 Opts.GPUDeferDiag = 1; 2669 2670 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2671 Opts.CUDADeviceApproxTranscendentals = 1; 2672 2673 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2674 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2675 if (Opts.HIP) 2676 Opts.GPUAllowDeviceInit = 1; 2677 else 2678 Diags.Report(diag::warn_ignored_hip_only_option) 2679 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2680 } 2681 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2682 if (Opts.HIP) 2683 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2684 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2685 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2686 Diags.Report(diag::warn_ignored_hip_only_option) 2687 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2688 2689 if (Opts.ObjC) { 2690 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2691 StringRef value = arg->getValue(); 2692 if (Opts.ObjCRuntime.tryParse(value)) 2693 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2694 } 2695 2696 if (Args.hasArg(OPT_fobjc_gc_only)) 2697 Opts.setGC(LangOptions::GCOnly); 2698 else if (Args.hasArg(OPT_fobjc_gc)) 2699 Opts.setGC(LangOptions::HybridGC); 2700 else if (Args.hasArg(OPT_fobjc_arc)) { 2701 Opts.ObjCAutoRefCount = 1; 2702 if (!Opts.ObjCRuntime.allowsARC()) 2703 Diags.Report(diag::err_arc_unsupported_on_runtime); 2704 } 2705 2706 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2707 // whether the feature is actually enabled. This is predominantly 2708 // determined by -fobjc-runtime, but we allow it to be overridden 2709 // from the command line for testing purposes. 2710 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2711 Opts.ObjCWeakRuntime = 1; 2712 else 2713 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2714 2715 // ObjCWeak determines whether __weak is actually enabled. 2716 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2717 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2718 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2719 assert(!Opts.ObjCWeak); 2720 } else if (Opts.getGC() != LangOptions::NonGC) { 2721 Diags.Report(diag::err_objc_weak_with_gc); 2722 } else if (!Opts.ObjCWeakRuntime) { 2723 Diags.Report(diag::err_objc_weak_unsupported); 2724 } else { 2725 Opts.ObjCWeak = 1; 2726 } 2727 } else if (Opts.ObjCAutoRefCount) { 2728 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2729 } 2730 2731 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2732 Opts.ObjCInferRelatedResultType = 0; 2733 2734 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2735 Opts.ObjCSubscriptingLegacyRuntime = 2736 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2737 } 2738 2739 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2740 // Check that the version has 1 to 3 components and the minor and patch 2741 // versions fit in two decimal digits. 2742 VersionTuple GNUCVer; 2743 bool Invalid = GNUCVer.tryParse(A->getValue()); 2744 unsigned Major = GNUCVer.getMajor(); 2745 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2746 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2747 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2748 Diags.Report(diag::err_drv_invalid_value) 2749 << A->getAsString(Args) << A->getValue(); 2750 } 2751 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2752 } 2753 2754 if (Args.hasArg(OPT_fgnu89_inline)) { 2755 if (Opts.CPlusPlus) 2756 Diags.Report(diag::err_drv_argument_not_allowed_with) 2757 << "-fgnu89-inline" << GetInputKindName(IK); 2758 else 2759 Opts.GNUInline = 1; 2760 } 2761 2762 if (Args.hasArg(OPT_fapple_kext)) { 2763 if (!Opts.CPlusPlus) 2764 Diags.Report(diag::warn_c_kext); 2765 else 2766 Opts.AppleKext = 1; 2767 } 2768 2769 if (Args.hasArg(OPT_print_ivar_layout)) 2770 Opts.ObjCGCBitmapPrint = 1; 2771 2772 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2773 Opts.NoConstantCFStrings = 1; 2774 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2775 Opts.CFRuntime = 2776 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2777 .Cases("unspecified", "standalone", "objc", 2778 LangOptions::CoreFoundationABI::ObjectiveC) 2779 .Cases("swift", "swift-5.0", 2780 LangOptions::CoreFoundationABI::Swift5_0) 2781 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2782 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2783 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2784 2785 if (Args.hasArg(OPT_fzvector)) 2786 Opts.ZVector = 1; 2787 2788 if (Args.hasArg(OPT_pthread)) 2789 Opts.POSIXThreads = 1; 2790 2791 // The value-visibility mode defaults to "default". 2792 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2793 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2794 } else { 2795 Opts.setValueVisibilityMode(DefaultVisibility); 2796 } 2797 2798 // The type-visibility mode defaults to the value-visibility mode. 2799 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2800 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2801 } else { 2802 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2803 } 2804 2805 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2806 Opts.InlineVisibilityHidden = 1; 2807 2808 if (Args.hasArg(OPT_fvisibility_inlines_hidden_static_local_var)) 2809 Opts.VisibilityInlinesHiddenStaticLocalVar = 1; 2810 2811 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2812 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2813 2814 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2815 Opts.SetVisibilityForExternDecls = 1; 2816 2817 if (Args.hasArg(OPT_fvisibility_from_dllstorageclass)) { 2818 Opts.VisibilityFromDLLStorageClass = 1; 2819 2820 // Translate dllexport defintions to default visibility, by default. 2821 if (Arg *O = Args.getLastArg(OPT_fvisibility_dllexport_EQ)) 2822 Opts.setDLLExportVisibility(parseVisibility(O, Args, Diags)); 2823 else 2824 Opts.setDLLExportVisibility(DefaultVisibility); 2825 2826 // Translate defintions without an explict DLL storage class to hidden 2827 // visibility, by default. 2828 if (Arg *O = Args.getLastArg(OPT_fvisibility_nodllstorageclass_EQ)) 2829 Opts.setNoDLLStorageClassVisibility(parseVisibility(O, Args, Diags)); 2830 else 2831 Opts.setNoDLLStorageClassVisibility(HiddenVisibility); 2832 2833 // Translate dllimport external declarations to default visibility, by 2834 // default. 2835 if (Arg *O = Args.getLastArg(OPT_fvisibility_externs_dllimport_EQ)) 2836 Opts.setExternDeclDLLImportVisibility(parseVisibility(O, Args, Diags)); 2837 else 2838 Opts.setExternDeclDLLImportVisibility(DefaultVisibility); 2839 2840 // Translate external declarations without an explicit DLL storage class 2841 // to hidden visibility, by default. 2842 if (Arg *O = Args.getLastArg(OPT_fvisibility_externs_nodllstorageclass_EQ)) 2843 Opts.setExternDeclNoDLLStorageClassVisibility( 2844 parseVisibility(O, Args, Diags)); 2845 else 2846 Opts.setExternDeclNoDLLStorageClassVisibility(HiddenVisibility); 2847 } 2848 2849 if (Args.hasArg(OPT_ftrapv)) { 2850 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2851 // Set the handler, if one is specified. 2852 Opts.OverflowHandler = 2853 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2854 } 2855 else if (Args.hasArg(OPT_fwrapv)) 2856 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2857 2858 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2859 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2860 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2861 Opts.MSCompatibilityVersion = 0; 2862 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2863 VersionTuple VT; 2864 if (VT.tryParse(A->getValue())) 2865 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2866 << A->getValue(); 2867 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2868 VT.getMinor().getValueOr(0) * 100000 + 2869 VT.getSubminor().getValueOr(0); 2870 } 2871 2872 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2873 // is specified, or -std is set to a conforming mode. 2874 // Trigraphs are disabled by default in c++1z onwards. 2875 // For z/OS, trigraphs are enabled by default (without regard to the above). 2876 Opts.Trigraphs = 2877 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 2878 Opts.Trigraphs = 2879 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2880 2881 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2882 OPT_fno_dollars_in_identifiers, 2883 Opts.DollarIdents); 2884 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2885 Opts.setVtorDispMode( 2886 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2887 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2888 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2889 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2890 Opts.ConstStrings); 2891 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2892 using LaxKind = LangOptions::LaxVectorConversionKind; 2893 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2894 .Case("none", LaxKind::None) 2895 .Case("integer", LaxKind::Integer) 2896 .Case("all", LaxKind::All) 2897 .Default(llvm::None)) 2898 Opts.setLaxVectorConversions(*Kind); 2899 else 2900 Diags.Report(diag::err_drv_invalid_value) 2901 << A->getAsString(Args) << A->getValue(); 2902 } 2903 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2904 Opts.ThreadsafeStatics = 0; 2905 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2906 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2907 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2908 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2909 2910 // -ffixed-point 2911 Opts.FixedPoint = 2912 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2913 !Opts.CPlusPlus; 2914 Opts.PaddingOnUnsignedFixedPoint = 2915 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2916 OPT_fno_padding_on_unsigned_fixed_point, 2917 /*Default=*/false) && 2918 Opts.FixedPoint; 2919 2920 // Handle exception personalities 2921 Arg *A = Args.getLastArg( 2922 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2923 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2924 if (A) { 2925 const Option &Opt = A->getOption(); 2926 llvm::Triple T(TargetOpts.Triple); 2927 if (T.isWindowsMSVCEnvironment()) 2928 Diags.Report(diag::err_fe_invalid_exception_model) 2929 << Opt.getName() << T.str(); 2930 2931 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2932 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2933 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2934 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2935 } 2936 2937 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2938 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2939 2940 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2941 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2942 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2943 && Opts.OpenCLVersion == 200); 2944 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2945 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2946 2947 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2948 Opts.SYCLIsDevice || 2949 Args.hasArg(OPT_fconvergent_functions); 2950 2951 Opts.DoubleSquareBracketAttributes = 2952 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2953 OPT_fno_double_square_bracket_attributes, 2954 Opts.DoubleSquareBracketAttributes); 2955 2956 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2957 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2958 Opts.Modules = 2959 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2960 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2961 Opts.ModulesDeclUse = 2962 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2963 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2964 // enter a different module (eg, when building a header unit). 2965 Opts.ModulesLocalVisibility = 2966 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2967 Opts.CPlusPlusModules; 2968 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2969 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2970 Opts.ModulesSearchAll = Opts.Modules && 2971 !Args.hasArg(OPT_fno_modules_search_all) && 2972 Args.hasArg(OPT_fmodules_search_all); 2973 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2974 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2975 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2976 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2977 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2978 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2979 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2980 .Case("char", 1) 2981 .Case("short", 2) 2982 .Case("int", 4) 2983 .Default(0); 2984 if (Opts.WCharSize == 0) 2985 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2986 } 2987 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2988 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2989 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2990 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2991 if (!Opts.NoBuiltin) 2992 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2993 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2994 Opts.RelaxedTemplateTemplateArgs = 2995 Args.hasArg(OPT_frelaxed_template_template_args); 2996 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2997 Opts.AlignedAllocation = 2998 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2999 Opts.AlignedAllocation); 3000 Opts.AlignedAllocationUnavailable = 3001 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 3002 Opts.NewAlignOverride = 3003 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 3004 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 3005 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 3006 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 3007 << A->getValue(); 3008 Opts.NewAlignOverride = 0; 3009 } 3010 Opts.ConceptSatisfactionCaching = 3011 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 3012 if (Args.hasArg(OPT_fconcepts_ts)) 3013 Diags.Report(diag::warn_fe_concepts_ts_flag); 3014 // Recovery AST still heavily relies on dependent-type machinery. 3015 Opts.RecoveryAST = 3016 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, Opts.CPlusPlus); 3017 Opts.RecoveryASTType = Args.hasFlag( 3018 OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, Opts.CPlusPlus); 3019 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 3020 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 3021 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 3022 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 3023 Opts.InstantiationDepth = 3024 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 3025 Opts.ArrowDepth = 3026 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 3027 Opts.ConstexprCallDepth = 3028 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 3029 Opts.ConstexprStepLimit = 3030 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 3031 Opts.EnableNewConstInterp = 3032 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 3033 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 3034 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 3035 Opts.NumLargeByValueCopy = 3036 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 3037 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 3038 Opts.ObjCConstantStringClass = 3039 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 3040 Opts.ObjCDefaultSynthProperties = 3041 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 3042 Opts.EncodeExtendedBlockSig = 3043 Args.hasArg(OPT_fencode_extended_block_signature); 3044 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 3045 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 3046 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 3047 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 3048 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 3049 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3050 ? 128 3051 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3052 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 3053 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3054 Opts.ROPI = Args.hasArg(OPT_fropi); 3055 Opts.RWPI = Args.hasArg(OPT_frwpi); 3056 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3057 Opts.Static = Args.hasArg(OPT_static_define); 3058 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 3059 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 3060 || Args.hasArg(OPT_fdump_record_layouts); 3061 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 3062 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 3063 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 3064 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 3065 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 3066 if (Opts.FastRelaxedMath) 3067 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3068 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 3069 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 3070 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 3071 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 3072 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 3073 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 3074 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 3075 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 3076 Opts.CurrentModule = Opts.ModuleName; 3077 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 3078 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 3079 llvm::sort(Opts.ModuleFeatures); 3080 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 3081 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 3082 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 3083 // is enabled. 3084 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 3085 | Opts.NativeHalfArgsAndReturns; 3086 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 3087 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 3088 3089 Opts.ArmSveVectorBits = 3090 getLastArgIntValue(Args, options::OPT_msve_vector_bits_EQ, 0, Diags); 3091 3092 // __declspec is enabled by default for the PS4 by the driver, and also 3093 // enabled for Microsoft Extensions or Borland Extensions, here. 3094 // 3095 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 3096 // CUDA extension. However, it is required for supporting 3097 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 3098 // been rewritten in terms of something more generic, remove the Opts.CUDA 3099 // term here. 3100 Opts.DeclSpecKeyword = 3101 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 3102 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 3103 3104 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 3105 switch (llvm::StringSwitch<unsigned>(A->getValue()) 3106 .Case("target", LangOptions::ASMM_Target) 3107 .Case("no", LangOptions::ASMM_Off) 3108 .Case("yes", LangOptions::ASMM_On) 3109 .Default(255)) { 3110 default: 3111 Diags.Report(diag::err_drv_invalid_value) 3112 << "-faddress-space-map-mangling=" << A->getValue(); 3113 break; 3114 case LangOptions::ASMM_Target: 3115 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3116 break; 3117 case LangOptions::ASMM_On: 3118 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3119 break; 3120 case LangOptions::ASMM_Off: 3121 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3122 break; 3123 } 3124 } 3125 3126 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3127 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3128 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3129 A->getValue()) 3130 .Case("single", 3131 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3132 .Case("multiple", 3133 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3134 .Case("virtual", 3135 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3136 .Default(LangOptions::PPTMK_BestCase); 3137 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3138 Diags.Report(diag::err_drv_invalid_value) 3139 << "-fms-memptr-rep=" << A->getValue(); 3140 3141 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3142 } 3143 3144 // Check for MS default calling conventions being specified. 3145 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3146 LangOptions::DefaultCallingConvention DefaultCC = 3147 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3148 .Case("cdecl", LangOptions::DCC_CDecl) 3149 .Case("fastcall", LangOptions::DCC_FastCall) 3150 .Case("stdcall", LangOptions::DCC_StdCall) 3151 .Case("vectorcall", LangOptions::DCC_VectorCall) 3152 .Case("regcall", LangOptions::DCC_RegCall) 3153 .Default(LangOptions::DCC_None); 3154 if (DefaultCC == LangOptions::DCC_None) 3155 Diags.Report(diag::err_drv_invalid_value) 3156 << "-fdefault-calling-conv=" << A->getValue(); 3157 3158 llvm::Triple T(TargetOpts.Triple); 3159 llvm::Triple::ArchType Arch = T.getArch(); 3160 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3161 DefaultCC == LangOptions::DCC_StdCall) && 3162 Arch != llvm::Triple::x86; 3163 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3164 DefaultCC == LangOptions::DCC_RegCall) && 3165 !T.isX86(); 3166 if (emitError) 3167 Diags.Report(diag::err_drv_argument_not_allowed_with) 3168 << A->getSpelling() << T.getTriple(); 3169 else 3170 Opts.setDefaultCallingConv(DefaultCC); 3171 } 3172 3173 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3174 // An explicit -fno-semantic-interposition infers dso_local. 3175 Opts.ExplicitNoSemanticInterposition = 3176 Args.hasArg(OPT_fno_semantic_interposition); 3177 3178 // -mrtd option 3179 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3180 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3181 Diags.Report(diag::err_drv_argument_not_allowed_with) 3182 << A->getSpelling() << "-fdefault-calling-conv"; 3183 else { 3184 llvm::Triple T(TargetOpts.Triple); 3185 if (T.getArch() != llvm::Triple::x86) 3186 Diags.Report(diag::err_drv_argument_not_allowed_with) 3187 << A->getSpelling() << T.getTriple(); 3188 else 3189 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3190 } 3191 } 3192 3193 // Check if -fopenmp is specified and set default version to 5.0. 3194 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 50 : 0; 3195 // Check if -fopenmp-simd is specified. 3196 bool IsSimdSpecified = 3197 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3198 /*Default=*/false); 3199 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3200 Opts.OpenMPUseTLS = 3201 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3202 Opts.OpenMPIsDevice = 3203 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3204 Opts.OpenMPIRBuilder = 3205 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3206 bool IsTargetSpecified = 3207 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3208 3209 if (Opts.OpenMP || Opts.OpenMPSimd) { 3210 if (int Version = getLastArgIntValue( 3211 Args, OPT_fopenmp_version_EQ, 3212 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3213 Opts.OpenMP = Version; 3214 // Provide diagnostic when a given target is not expected to be an OpenMP 3215 // device or host. 3216 if (!Opts.OpenMPIsDevice) { 3217 switch (T.getArch()) { 3218 default: 3219 break; 3220 // Add unsupported host targets here: 3221 case llvm::Triple::nvptx: 3222 case llvm::Triple::nvptx64: 3223 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3224 << TargetOpts.Triple; 3225 break; 3226 } 3227 } 3228 } 3229 3230 // Set the flag to prevent the implementation from emitting device exception 3231 // handling code for those requiring so. 3232 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3233 Opts.OpenCLCPlusPlus) { 3234 Opts.Exceptions = 0; 3235 Opts.CXXExceptions = 0; 3236 } 3237 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3238 Opts.OpenMPCUDANumSMs = 3239 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3240 Opts.OpenMPCUDANumSMs, Diags); 3241 Opts.OpenMPCUDABlocksPerSM = 3242 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3243 Opts.OpenMPCUDABlocksPerSM, Diags); 3244 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3245 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3246 Opts.OpenMPCUDAReductionBufNum, Diags); 3247 } 3248 3249 // Prevent auto-widening the representation of loop counters during an 3250 // OpenMP collapse clause. 3251 Opts.OpenMPOptimisticCollapse = 3252 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3253 3254 // Get the OpenMP target triples if any. 3255 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3256 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3257 auto getArchPtrSize = [](const llvm::Triple &T) { 3258 if (T.isArch16Bit()) 3259 return Arch16Bit; 3260 if (T.isArch32Bit()) 3261 return Arch32Bit; 3262 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3263 return Arch64Bit; 3264 }; 3265 3266 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3267 llvm::Triple TT(A->getValue(i)); 3268 3269 if (TT.getArch() == llvm::Triple::UnknownArch || 3270 !(TT.getArch() == llvm::Triple::aarch64 || 3271 TT.getArch() == llvm::Triple::ppc || 3272 TT.getArch() == llvm::Triple::ppc64 || 3273 TT.getArch() == llvm::Triple::ppc64le || 3274 TT.getArch() == llvm::Triple::nvptx || 3275 TT.getArch() == llvm::Triple::nvptx64 || 3276 TT.getArch() == llvm::Triple::amdgcn || 3277 TT.getArch() == llvm::Triple::x86 || 3278 TT.getArch() == llvm::Triple::x86_64)) 3279 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3280 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3281 Diags.Report(diag::err_drv_incompatible_omp_arch) 3282 << A->getValue(i) << T.str(); 3283 else 3284 Opts.OMPTargetTriples.push_back(TT); 3285 } 3286 } 3287 3288 // Get OpenMP host file path if any and report if a non existent file is 3289 // found 3290 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3291 Opts.OMPHostIRFile = A->getValue(); 3292 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3293 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3294 << Opts.OMPHostIRFile; 3295 } 3296 3297 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3298 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3299 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3300 3301 // Set CUDA support for parallel execution of target regions for OpenMP target 3302 // NVPTX/AMDGCN if specified in options. 3303 Opts.OpenMPCUDATargetParallel = 3304 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3305 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3306 3307 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3308 Opts.OpenMPCUDAForceFullRuntime = 3309 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3310 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3311 3312 // Record whether the __DEPRECATED define was requested. 3313 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3314 OPT_fno_deprecated_macro, 3315 Opts.Deprecated); 3316 3317 // FIXME: Eliminate this dependency. 3318 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3319 OptSize = getOptimizationLevelSize(Args); 3320 Opts.Optimize = Opt != 0; 3321 Opts.OptimizeSize = OptSize != 0; 3322 3323 // This is the __NO_INLINE__ define, which just depends on things like the 3324 // optimization level and -fno-inline, not actually whether the backend has 3325 // inlining enabled. 3326 Opts.NoInlineDefine = !Opts.Optimize; 3327 if (Arg *InlineArg = Args.getLastArg( 3328 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3329 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3330 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3331 Opts.NoInlineDefine = true; 3332 3333 Opts.FastMath = 3334 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_fast_relaxed_math); 3335 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3336 Args.hasArg(OPT_ffast_math) || 3337 Args.hasArg(OPT_cl_finite_math_only) || 3338 Args.hasArg(OPT_cl_fast_relaxed_math); 3339 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3340 Args.hasArg(OPT_ffast_math) || 3341 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3342 Args.hasArg(OPT_cl_fast_relaxed_math); 3343 Opts.AllowFPReassoc = Args.hasArg(OPT_mreassociate) || 3344 Args.hasArg(OPT_menable_unsafe_fp_math) || 3345 Args.hasArg(OPT_ffast_math) || 3346 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3347 Args.hasArg(OPT_cl_fast_relaxed_math); 3348 Opts.NoHonorNaNs = 3349 Args.hasArg(OPT_menable_no_nans) || Args.hasArg(OPT_ffinite_math_only) || 3350 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_finite_math_only) || 3351 Args.hasArg(OPT_cl_fast_relaxed_math); 3352 Opts.NoHonorInfs = Args.hasArg(OPT_menable_no_infinities) || 3353 Args.hasArg(OPT_ffinite_math_only) || 3354 Args.hasArg(OPT_ffast_math) || 3355 Args.hasArg(OPT_cl_finite_math_only) || 3356 Args.hasArg(OPT_cl_fast_relaxed_math); 3357 Opts.NoSignedZero = Args.hasArg(OPT_fno_signed_zeros) || 3358 Args.hasArg(OPT_menable_unsafe_fp_math) || 3359 Args.hasArg(OPT_ffast_math) || 3360 Args.hasArg(OPT_cl_no_signed_zeros) || 3361 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3362 Args.hasArg(OPT_cl_fast_relaxed_math); 3363 Opts.AllowRecip = Args.hasArg(OPT_freciprocal_math) || 3364 Args.hasArg(OPT_menable_unsafe_fp_math) || 3365 Args.hasArg(OPT_ffast_math) || 3366 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3367 Args.hasArg(OPT_cl_fast_relaxed_math); 3368 // Currently there's no clang option to enable this individually 3369 Opts.ApproxFunc = Args.hasArg(OPT_menable_unsafe_fp_math) || 3370 Args.hasArg(OPT_ffast_math) || 3371 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3372 Args.hasArg(OPT_cl_fast_relaxed_math); 3373 3374 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3375 StringRef Val = A->getValue(); 3376 if (Val == "fast") 3377 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3378 else if (Val == "on") 3379 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3380 else if (Val == "off") 3381 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3382 else 3383 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3384 } 3385 3386 if (Args.hasArg(OPT_fexperimental_strict_floating_point)) 3387 Opts.ExpStrictFP = true; 3388 3389 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3390 if (Args.hasArg(OPT_frounding_math)) { 3391 FPRM = llvm::RoundingMode::Dynamic; 3392 } 3393 Opts.setFPRoundingMode(FPRM); 3394 3395 if (Args.hasArg(OPT_ftrapping_math)) { 3396 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3397 } 3398 3399 if (Args.hasArg(OPT_fno_trapping_math)) { 3400 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3401 } 3402 3403 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3404 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3405 StringRef Val = A->getValue(); 3406 if (Val.equals("ignore")) 3407 FPEB = LangOptions::FPE_Ignore; 3408 else if (Val.equals("maytrap")) 3409 FPEB = LangOptions::FPE_MayTrap; 3410 else if (Val.equals("strict")) 3411 FPEB = LangOptions::FPE_Strict; 3412 else 3413 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3414 } 3415 Opts.setFPExceptionMode(FPEB); 3416 3417 Opts.RetainCommentsFromSystemHeaders = 3418 Args.hasArg(OPT_fretain_comments_from_system_headers); 3419 3420 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3421 switch (SSP) { 3422 default: 3423 Diags.Report(diag::err_drv_invalid_value) 3424 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3425 break; 3426 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3427 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3428 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3429 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3430 } 3431 3432 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3433 StringRef Val = A->getValue(); 3434 if (Val == "uninitialized") 3435 Opts.setTrivialAutoVarInit( 3436 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3437 else if (Val == "zero") 3438 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3439 else if (Val == "pattern") 3440 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3441 else 3442 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3443 } 3444 3445 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3446 int Val = std::stoi(A->getValue()); 3447 Opts.TrivialAutoVarInitStopAfter = Val; 3448 } 3449 3450 // Parse -fsanitize= arguments. 3451 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3452 Diags, Opts.Sanitize); 3453 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3454 Opts.SanitizeAddressFieldPadding = 3455 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3456 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3457 std::vector<std::string> systemBlacklists = 3458 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3459 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3460 systemBlacklists.begin(), 3461 systemBlacklists.end()); 3462 3463 // -fxray-instrument 3464 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3465 Opts.XRayAlwaysEmitCustomEvents = 3466 Args.hasArg(OPT_fxray_always_emit_customevents); 3467 Opts.XRayAlwaysEmitTypedEvents = 3468 Args.hasArg(OPT_fxray_always_emit_typedevents); 3469 3470 // -fxray-{always,never}-instrument= filenames. 3471 Opts.XRayAlwaysInstrumentFiles = 3472 Args.getAllArgValues(OPT_fxray_always_instrument); 3473 Opts.XRayNeverInstrumentFiles = 3474 Args.getAllArgValues(OPT_fxray_never_instrument); 3475 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3476 3477 // -fforce-emit-vtables 3478 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3479 3480 // -fallow-editor-placeholders 3481 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3482 3483 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3484 3485 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3486 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3487 3488 StringRef Ver = A->getValue(); 3489 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3490 unsigned Major, Minor = 0; 3491 3492 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3493 // y or y.0 (4 <= y <= current version). 3494 if (!VerParts.first.startswith("0") && 3495 !VerParts.first.getAsInteger(10, Major) && 3496 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3497 (Major == 3 ? VerParts.second.size() == 1 && 3498 !VerParts.second.getAsInteger(10, Minor) 3499 : VerParts.first.size() == Ver.size() || 3500 VerParts.second == "0")) { 3501 // Got a valid version number. 3502 if (Major == 3 && Minor <= 8) 3503 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3504 else if (Major <= 4) 3505 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3506 else if (Major <= 6) 3507 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3508 else if (Major <= 7) 3509 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3510 else if (Major <= 9) 3511 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3512 else if (Major <= 11) 3513 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3514 } else if (Ver != "latest") { 3515 Diags.Report(diag::err_drv_invalid_value) 3516 << A->getAsString(Args) << A->getValue(); 3517 } 3518 } 3519 3520 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3521 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3522 Opts.PCHInstantiateTemplates = Args.hasArg(OPT_fpch_instantiate_templates); 3523 3524 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3525 3526 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3527 3528 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3529 StringRef SignScope = A->getValue(); 3530 3531 if (SignScope.equals_lower("none")) 3532 Opts.setSignReturnAddressScope( 3533 LangOptions::SignReturnAddressScopeKind::None); 3534 else if (SignScope.equals_lower("all")) 3535 Opts.setSignReturnAddressScope( 3536 LangOptions::SignReturnAddressScopeKind::All); 3537 else if (SignScope.equals_lower("non-leaf")) 3538 Opts.setSignReturnAddressScope( 3539 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3540 else 3541 Diags.Report(diag::err_drv_invalid_value) 3542 << A->getAsString(Args) << SignScope; 3543 3544 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3545 StringRef SignKey = A->getValue(); 3546 if (!SignScope.empty() && !SignKey.empty()) { 3547 if (SignKey.equals_lower("a_key")) 3548 Opts.setSignReturnAddressKey( 3549 LangOptions::SignReturnAddressKeyKind::AKey); 3550 else if (SignKey.equals_lower("b_key")) 3551 Opts.setSignReturnAddressKey( 3552 LangOptions::SignReturnAddressKeyKind::BKey); 3553 else 3554 Diags.Report(diag::err_drv_invalid_value) 3555 << A->getAsString(Args) << SignKey; 3556 } 3557 } 3558 } 3559 3560 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3561 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3562 3563 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3564 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3565 3566 Opts.RelativeCXXABIVTables = 3567 Args.hasFlag(OPT_fexperimental_relative_cxx_abi_vtables, 3568 OPT_fno_experimental_relative_cxx_abi_vtables, 3569 /*default=*/false); 3570 } 3571 3572 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3573 switch (Action) { 3574 case frontend::ASTDeclList: 3575 case frontend::ASTDump: 3576 case frontend::ASTPrint: 3577 case frontend::ASTView: 3578 case frontend::EmitAssembly: 3579 case frontend::EmitBC: 3580 case frontend::EmitHTML: 3581 case frontend::EmitLLVM: 3582 case frontend::EmitLLVMOnly: 3583 case frontend::EmitCodeGenOnly: 3584 case frontend::EmitObj: 3585 case frontend::FixIt: 3586 case frontend::GenerateModule: 3587 case frontend::GenerateModuleInterface: 3588 case frontend::GenerateHeaderModule: 3589 case frontend::GeneratePCH: 3590 case frontend::GenerateInterfaceStubs: 3591 case frontend::ParseSyntaxOnly: 3592 case frontend::ModuleFileInfo: 3593 case frontend::VerifyPCH: 3594 case frontend::PluginAction: 3595 case frontend::RewriteObjC: 3596 case frontend::RewriteTest: 3597 case frontend::RunAnalysis: 3598 case frontend::TemplightDump: 3599 case frontend::MigrateSource: 3600 return false; 3601 3602 case frontend::DumpCompilerOptions: 3603 case frontend::DumpRawTokens: 3604 case frontend::DumpTokens: 3605 case frontend::InitOnly: 3606 case frontend::PrintPreamble: 3607 case frontend::PrintPreprocessedInput: 3608 case frontend::RewriteMacros: 3609 case frontend::RunPreprocessorOnly: 3610 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3611 return true; 3612 } 3613 llvm_unreachable("invalid frontend action"); 3614 } 3615 3616 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3617 DiagnosticsEngine &Diags, 3618 frontend::ActionKind Action) { 3619 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3620 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3621 Args.hasArg(OPT_pch_through_hdrstop_use); 3622 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3623 Opts.PCHThroughHeader = 3624 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3625 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3626 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3627 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3628 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3629 3630 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3631 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3632 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3633 3634 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3635 auto Split = StringRef(A).split('='); 3636 Opts.MacroPrefixMap.insert( 3637 {std::string(Split.first), std::string(Split.second)}); 3638 } 3639 3640 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3641 StringRef Value(A->getValue()); 3642 size_t Comma = Value.find(','); 3643 unsigned Bytes = 0; 3644 unsigned EndOfLine = 0; 3645 3646 if (Comma == StringRef::npos || 3647 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3648 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3649 Diags.Report(diag::err_drv_preamble_format); 3650 else { 3651 Opts.PrecompiledPreambleBytes.first = Bytes; 3652 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3653 } 3654 } 3655 3656 // Add the __CET__ macro if a CFProtection option is set. 3657 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3658 StringRef Name = A->getValue(); 3659 if (Name == "branch") 3660 Opts.addMacroDef("__CET__=1"); 3661 else if (Name == "return") 3662 Opts.addMacroDef("__CET__=2"); 3663 else if (Name == "full") 3664 Opts.addMacroDef("__CET__=3"); 3665 } 3666 3667 // Add macros from the command line. 3668 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3669 if (A->getOption().matches(OPT_D)) 3670 Opts.addMacroDef(A->getValue()); 3671 else 3672 Opts.addMacroUndef(A->getValue()); 3673 } 3674 3675 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3676 3677 // Add the ordered list of -includes. 3678 for (const auto *A : Args.filtered(OPT_include)) 3679 Opts.Includes.emplace_back(A->getValue()); 3680 3681 for (const auto *A : Args.filtered(OPT_chain_include)) 3682 Opts.ChainedIncludes.emplace_back(A->getValue()); 3683 3684 for (const auto *A : Args.filtered(OPT_remap_file)) { 3685 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3686 3687 if (Split.second.empty()) { 3688 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3689 continue; 3690 } 3691 3692 Opts.addRemappedFile(Split.first, Split.second); 3693 } 3694 3695 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3696 StringRef Name = A->getValue(); 3697 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3698 .Case("libc++", ARCXX_libcxx) 3699 .Case("libstdc++", ARCXX_libstdcxx) 3700 .Case("none", ARCXX_nolib) 3701 .Default(~0U); 3702 if (Library == ~0U) 3703 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3704 else 3705 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3706 } 3707 3708 // Always avoid lexing editor placeholders when we're just running the 3709 // preprocessor as we never want to emit the 3710 // "editor placeholder in source file" error in PP only mode. 3711 if (isStrictlyPreprocessorAction(Action)) 3712 Opts.LexEditorPlaceholders = false; 3713 3714 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3715 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3716 } 3717 3718 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3719 ArgList &Args, 3720 frontend::ActionKind Action) { 3721 if (isStrictlyPreprocessorAction(Action)) 3722 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3723 else 3724 Opts.ShowCPP = 0; 3725 3726 Opts.ShowComments = Args.hasArg(OPT_C); 3727 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3728 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3729 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3730 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3731 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3732 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3733 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3734 } 3735 3736 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3737 DiagnosticsEngine &Diags) { 3738 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3739 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3740 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3741 StringRef Value = A->getValue(); 3742 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3743 .Case("default", llvm::EABI::Default) 3744 .Case("4", llvm::EABI::EABI4) 3745 .Case("5", llvm::EABI::EABI5) 3746 .Case("gnu", llvm::EABI::GNU) 3747 .Default(llvm::EABI::Unknown); 3748 if (EABIVersion == llvm::EABI::Unknown) 3749 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3750 << Value; 3751 else 3752 Opts.EABIVersion = EABIVersion; 3753 } 3754 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3755 Opts.TuneCPU = std::string(Args.getLastArgValue(OPT_tune_cpu)); 3756 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3757 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3758 Opts.LinkerVersion = 3759 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3760 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3761 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3762 Opts.NVPTXUseShortPointers = Args.hasFlag( 3763 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3764 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3765 llvm::VersionTuple Version; 3766 if (Version.tryParse(A->getValue())) 3767 Diags.Report(diag::err_drv_invalid_value) 3768 << A->getAsString(Args) << A->getValue(); 3769 else 3770 Opts.SDKVersion = Version; 3771 } 3772 } 3773 3774 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 3775 DiagnosticsEngine &Diags) { 3776 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3777 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3778 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3779 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3780 this->KEYPATH = Args.hasArg(OPT_##ID) && IS_POSITIVE; 3781 3782 #define OPTION_WITH_MARSHALLING_STRING( \ 3783 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3784 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3785 TYPE, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 3786 { \ 3787 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, Args, Diags)) \ 3788 this->KEYPATH = static_cast<TYPE>(*MaybeValue); \ 3789 else \ 3790 this->KEYPATH = DEFAULT_VALUE; \ 3791 } 3792 3793 #include "clang/Driver/Options.inc" 3794 #undef OPTION_WITH_MARSHALLING_STRING 3795 #undef OPTION_WITH_MARSHALLING_FLAG 3796 return true; 3797 } 3798 3799 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3800 ArrayRef<const char *> CommandLineArgs, 3801 DiagnosticsEngine &Diags, 3802 const char *Argv0) { 3803 bool Success = true; 3804 3805 // Parse the arguments. 3806 const OptTable &Opts = getDriverOptTable(); 3807 const unsigned IncludedFlagsBitmask = options::CC1Option; 3808 unsigned MissingArgIndex, MissingArgCount; 3809 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3810 MissingArgCount, IncludedFlagsBitmask); 3811 LangOptions &LangOpts = *Res.getLangOpts(); 3812 3813 // Check for missing argument error. 3814 if (MissingArgCount) { 3815 Diags.Report(diag::err_drv_missing_argument) 3816 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3817 Success = false; 3818 } 3819 3820 // Issue errors on unknown arguments. 3821 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3822 auto ArgString = A->getAsString(Args); 3823 std::string Nearest; 3824 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3825 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3826 else 3827 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3828 << ArgString << Nearest; 3829 Success = false; 3830 } 3831 3832 Success &= Res.parseSimpleArgs(Args, Diags); 3833 3834 llvm::sys::Process::UseANSIEscapeCodes( 3835 Res.DiagnosticOpts->UseANSIEscapeCodes); 3836 3837 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3838 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3839 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3840 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3841 Res.getDependencyOutputOpts().Targets.empty()) { 3842 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3843 Success = false; 3844 } 3845 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3846 /*DefaultDiagColor=*/false); 3847 ParseCommentArgs(LangOpts.CommentOpts, Args); 3848 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3849 // FIXME: We shouldn't have to pass the DashX option around here 3850 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3851 LangOpts.IsHeaderFile); 3852 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3853 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3854 Res.getTargetOpts(), Res.getFrontendOpts()); 3855 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3856 Res.getFileSystemOpts().WorkingDir); 3857 llvm::Triple T(Res.getTargetOpts().Triple); 3858 if (DashX.getFormat() == InputKind::Precompiled || 3859 DashX.getLanguage() == Language::LLVM_IR) { 3860 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3861 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3862 // what the input type is. 3863 if (Args.hasArg(OPT_fobjc_arc)) 3864 LangOpts.ObjCAutoRefCount = 1; 3865 // PIClevel and PIELevel are needed during code generation and this should be 3866 // set regardless of the input type. 3867 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3868 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3869 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3870 Diags, LangOpts.Sanitize); 3871 } else { 3872 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3873 // FIXME: Should we really be calling this for an Language::Asm input? 3874 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3875 Res.getPreprocessorOpts(), Diags); 3876 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3877 LangOpts.ObjCExceptions = 1; 3878 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3879 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3880 // preprocessed input as we don't expect it to be used with -std=libc++ 3881 // anyway. 3882 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3883 } 3884 } 3885 3886 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3887 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3888 3889 LangOpts.FunctionAlignment = 3890 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3891 3892 if (LangOpts.CUDA) { 3893 // During CUDA device-side compilation, the aux triple is the 3894 // triple used for host compilation. 3895 if (LangOpts.CUDAIsDevice) 3896 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3897 } 3898 3899 // Set the triple of the host for OpenMP device compile. 3900 if (LangOpts.OpenMPIsDevice) 3901 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3902 3903 // FIXME: Override value name discarding when asan or msan is used because the 3904 // backend passes depend on the name of the alloca in order to print out 3905 // names. 3906 Res.getCodeGenOpts().DiscardValueNames &= 3907 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3908 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3909 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3910 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3911 3912 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3913 Res.getFrontendOpts().ProgramAction); 3914 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3915 Res.getFrontendOpts().ProgramAction); 3916 3917 // Turn on -Wspir-compat for SPIR target. 3918 if (T.isSPIR()) 3919 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3920 3921 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3922 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3923 !Res.getLangOpts()->Sanitize.empty()) { 3924 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3925 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3926 } 3927 3928 // Store the command-line for using in the CodeView backend. 3929 Res.getCodeGenOpts().Argv0 = Argv0; 3930 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 3931 3932 return Success; 3933 } 3934 3935 std::string CompilerInvocation::getModuleHash() const { 3936 // Note: For QoI reasons, the things we use as a hash here should all be 3937 // dumped via the -module-info flag. 3938 using llvm::hash_code; 3939 using llvm::hash_value; 3940 using llvm::hash_combine; 3941 using llvm::hash_combine_range; 3942 3943 // Start the signature with the compiler version. 3944 // FIXME: We'd rather use something more cryptographically sound than 3945 // CityHash, but this will do for now. 3946 hash_code code = hash_value(getClangFullRepositoryVersion()); 3947 3948 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3949 // and getClangFullRepositoryVersion() doesn't include git revision. 3950 code = hash_combine(code, serialization::VERSION_MAJOR, 3951 serialization::VERSION_MINOR); 3952 3953 // Extend the signature with the language options 3954 #define LANGOPT(Name, Bits, Default, Description) \ 3955 code = hash_combine(code, LangOpts->Name); 3956 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3957 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3958 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3959 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3960 #include "clang/Basic/LangOptions.def" 3961 3962 for (StringRef Feature : LangOpts->ModuleFeatures) 3963 code = hash_combine(code, Feature); 3964 3965 code = hash_combine(code, LangOpts->ObjCRuntime); 3966 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 3967 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 3968 3969 // Extend the signature with the target options. 3970 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3971 TargetOpts->TuneCPU, TargetOpts->ABI); 3972 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3973 code = hash_combine(code, FeatureAsWritten); 3974 3975 // Extend the signature with preprocessor options. 3976 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3977 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3978 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3979 3980 for (const auto &I : getPreprocessorOpts().Macros) { 3981 // If we're supposed to ignore this macro for the purposes of modules, 3982 // don't put it into the hash. 3983 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3984 // Check whether we're ignoring this macro. 3985 StringRef MacroDef = I.first; 3986 if (hsOpts.ModulesIgnoreMacros.count( 3987 llvm::CachedHashString(MacroDef.split('=').first))) 3988 continue; 3989 } 3990 3991 code = hash_combine(code, I.first, I.second); 3992 } 3993 3994 // Extend the signature with the sysroot and other header search options. 3995 code = hash_combine(code, hsOpts.Sysroot, 3996 hsOpts.ModuleFormat, 3997 hsOpts.UseDebugInfo, 3998 hsOpts.UseBuiltinIncludes, 3999 hsOpts.UseStandardSystemIncludes, 4000 hsOpts.UseStandardCXXIncludes, 4001 hsOpts.UseLibcxx, 4002 hsOpts.ModulesValidateDiagnosticOptions); 4003 code = hash_combine(code, hsOpts.ResourceDir); 4004 4005 if (hsOpts.ModulesStrictContextHash) { 4006 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4007 hsOpts.SystemHeaderPrefixes.end()); 4008 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4009 hsOpts.UserEntries.end()); 4010 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4011 hsOpts.UserEntries.size(), UEC); 4012 4013 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4014 #define DIAGOPT(Name, Bits, Default) \ 4015 code = hash_combine(code, diagOpts.Name); 4016 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4017 code = hash_combine(code, diagOpts.get##Name()); 4018 #include "clang/Basic/DiagnosticOptions.def" 4019 #undef DIAGOPT 4020 #undef ENUM_DIAGOPT 4021 } 4022 4023 // Extend the signature with the user build path. 4024 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4025 4026 // Extend the signature with the module file extensions. 4027 const FrontendOptions &frontendOpts = getFrontendOpts(); 4028 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4029 code = ext->hashExtension(code); 4030 } 4031 4032 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4033 // affects the debug info in the PCM. 4034 if (getCodeGenOpts().DebugTypeExtRefs) 4035 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4036 code = hash_combine(code, KeyValue.first, KeyValue.second); 4037 4038 // Extend the signature with the enabled sanitizers, if at least one is 4039 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4040 SanitizerSet SanHash = LangOpts->Sanitize; 4041 SanHash.clear(getPPTransparentSanitizers()); 4042 if (!SanHash.empty()) 4043 code = hash_combine(code, SanHash.Mask); 4044 4045 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4046 } 4047 4048 void CompilerInvocation::generateCC1CommandLine( 4049 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4050 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 4051 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 4052 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 4053 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 4054 if ((FLAGS) & options::CC1Option && \ 4055 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) \ 4056 Args.push_back(SPELLING); 4057 4058 #define OPTION_WITH_MARSHALLING_STRING( \ 4059 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4060 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4061 NORMALIZER_RET_TY, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 4062 if (((FLAGS) & options::CC1Option) && \ 4063 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) { \ 4064 if (Option::KIND##Class == Option::SeparateClass) { \ 4065 Args.push_back(SPELLING); \ 4066 Args.push_back(DENORMALIZER(SA, TABLE_INDEX, this->KEYPATH)); \ 4067 } \ 4068 } 4069 4070 #include "clang/Driver/Options.inc" 4071 #undef OPTION_WITH_MARSHALLING_STRING 4072 #undef OPTION_WITH_MARSHALLING_FLAG 4073 } 4074 4075 namespace clang { 4076 4077 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4078 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4079 DiagnosticsEngine &Diags) { 4080 return createVFSFromCompilerInvocation(CI, Diags, 4081 llvm::vfs::getRealFileSystem()); 4082 } 4083 4084 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 4085 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4086 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4087 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4088 return BaseFS; 4089 4090 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4091 // earlier vfs files are on the bottom 4092 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4093 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4094 Result->getBufferForFile(File); 4095 if (!Buffer) { 4096 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4097 continue; 4098 } 4099 4100 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4101 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4102 /*DiagContext*/ nullptr, Result); 4103 if (!FS) { 4104 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4105 continue; 4106 } 4107 4108 Result = FS; 4109 } 4110 return Result; 4111 } 4112 4113 } // namespace clang 4114