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/ModuleFileExtension.h" 45 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 46 #include "llvm/ADT/APInt.h" 47 #include "llvm/ADT/ArrayRef.h" 48 #include "llvm/ADT/CachedHashString.h" 49 #include "llvm/ADT/Hashing.h" 50 #include "llvm/ADT/None.h" 51 #include "llvm/ADT/Optional.h" 52 #include "llvm/ADT/SmallString.h" 53 #include "llvm/ADT/SmallVector.h" 54 #include "llvm/ADT/StringRef.h" 55 #include "llvm/ADT/StringSwitch.h" 56 #include "llvm/ADT/Triple.h" 57 #include "llvm/ADT/Twine.h" 58 #include "llvm/IR/DebugInfoMetadata.h" 59 #include "llvm/Linker/Linker.h" 60 #include "llvm/MC/MCTargetOptions.h" 61 #include "llvm/Option/Arg.h" 62 #include "llvm/Option/ArgList.h" 63 #include "llvm/Option/OptSpecifier.h" 64 #include "llvm/Option/OptTable.h" 65 #include "llvm/Option/Option.h" 66 #include "llvm/ProfileData/InstrProfReader.h" 67 #include "llvm/Support/CodeGen.h" 68 #include "llvm/Support/Compiler.h" 69 #include "llvm/Support/Error.h" 70 #include "llvm/Support/ErrorHandling.h" 71 #include "llvm/Support/ErrorOr.h" 72 #include "llvm/Support/FileSystem.h" 73 #include "llvm/Support/Host.h" 74 #include "llvm/Support/MathExtras.h" 75 #include "llvm/Support/MemoryBuffer.h" 76 #include "llvm/Support/Path.h" 77 #include "llvm/Support/Process.h" 78 #include "llvm/Support/Regex.h" 79 #include "llvm/Support/VersionTuple.h" 80 #include "llvm/Support/VirtualFileSystem.h" 81 #include "llvm/Support/raw_ostream.h" 82 #include "llvm/Target/TargetOptions.h" 83 #include <algorithm> 84 #include <atomic> 85 #include <cassert> 86 #include <cstddef> 87 #include <cstring> 88 #include <memory> 89 #include <string> 90 #include <tuple> 91 #include <utility> 92 #include <vector> 93 94 using namespace clang; 95 using namespace driver; 96 using namespace options; 97 using namespace llvm::opt; 98 99 //===----------------------------------------------------------------------===// 100 // Initialization. 101 //===----------------------------------------------------------------------===// 102 103 CompilerInvocationBase::CompilerInvocationBase() 104 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 105 DiagnosticOpts(new DiagnosticOptions()), 106 HeaderSearchOpts(new HeaderSearchOptions()), 107 PreprocessorOpts(new PreprocessorOptions()) {} 108 109 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 110 : LangOpts(new LangOptions(*X.getLangOpts())), 111 TargetOpts(new TargetOptions(X.getTargetOpts())), 112 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 113 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 114 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 115 116 CompilerInvocationBase::~CompilerInvocationBase() = default; 117 118 //===----------------------------------------------------------------------===// 119 // Deserialization (from args) 120 //===----------------------------------------------------------------------===// 121 122 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 123 DiagnosticsEngine &Diags) { 124 unsigned DefaultOpt = llvm::CodeGenOpt::None; 125 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 126 DefaultOpt = llvm::CodeGenOpt::Default; 127 128 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 129 if (A->getOption().matches(options::OPT_O0)) 130 return llvm::CodeGenOpt::None; 131 132 if (A->getOption().matches(options::OPT_Ofast)) 133 return llvm::CodeGenOpt::Aggressive; 134 135 assert(A->getOption().matches(options::OPT_O)); 136 137 StringRef S(A->getValue()); 138 if (S == "s" || S == "z" || S.empty()) 139 return llvm::CodeGenOpt::Default; 140 141 if (S == "g") 142 return llvm::CodeGenOpt::Less; 143 144 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 145 } 146 147 return DefaultOpt; 148 } 149 150 static unsigned getOptimizationLevelSize(ArgList &Args) { 151 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 152 if (A->getOption().matches(options::OPT_O)) { 153 switch (A->getValue()[0]) { 154 default: 155 return 0; 156 case 's': 157 return 1; 158 case 'z': 159 return 2; 160 } 161 } 162 } 163 return 0; 164 } 165 166 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 167 OptSpecifier GroupWithValue, 168 std::vector<std::string> &Diagnostics) { 169 for (auto *A : Args.filtered(Group)) { 170 if (A->getOption().getKind() == Option::FlagClass) { 171 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 172 // its name (minus the "W" or "R" at the beginning) to the warning list. 173 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 174 } else if (A->getOption().matches(GroupWithValue)) { 175 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 176 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 177 } else { 178 // Otherwise, add its value (for OPT_W_Joined and similar). 179 for (const auto *Arg : A->getValues()) 180 Diagnostics.emplace_back(Arg); 181 } 182 } 183 } 184 185 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 186 // it won't verify the input. 187 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 188 DiagnosticsEngine *Diags); 189 190 static void getAllNoBuiltinFuncValues(ArgList &Args, 191 std::vector<std::string> &Funcs) { 192 SmallVector<const char *, 8> Values; 193 for (const auto &Arg : Args) { 194 const Option &O = Arg->getOption(); 195 if (O.matches(options::OPT_fno_builtin_)) { 196 const char *FuncName = Arg->getValue(); 197 if (Builtin::Context::isBuiltinFunc(FuncName)) 198 Values.push_back(FuncName); 199 } 200 } 201 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 202 } 203 204 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 205 DiagnosticsEngine &Diags) { 206 bool Success = true; 207 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 208 StringRef Name = A->getValue(); 209 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 210 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 211 .Case(CMDFLAG, NAME##Model) 212 #include "clang/StaticAnalyzer/Core/Analyses.def" 213 .Default(NumStores); 214 if (Value == NumStores) { 215 Diags.Report(diag::err_drv_invalid_value) 216 << A->getAsString(Args) << Name; 217 Success = false; 218 } else { 219 Opts.AnalysisStoreOpt = Value; 220 } 221 } 222 223 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 224 StringRef Name = A->getValue(); 225 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 226 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 227 .Case(CMDFLAG, NAME##Model) 228 #include "clang/StaticAnalyzer/Core/Analyses.def" 229 .Default(NumConstraints); 230 if (Value == NumConstraints) { 231 Diags.Report(diag::err_drv_invalid_value) 232 << A->getAsString(Args) << Name; 233 Success = false; 234 } else { 235 Opts.AnalysisConstraintsOpt = Value; 236 } 237 } 238 239 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 240 StringRef Name = A->getValue(); 241 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 242 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 243 .Case(CMDFLAG, PD_##NAME) 244 #include "clang/StaticAnalyzer/Core/Analyses.def" 245 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 246 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 247 Diags.Report(diag::err_drv_invalid_value) 248 << A->getAsString(Args) << Name; 249 Success = false; 250 } else { 251 Opts.AnalysisDiagOpt = Value; 252 } 253 } 254 255 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 256 StringRef Name = A->getValue(); 257 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 258 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 259 .Case(CMDFLAG, NAME) 260 #include "clang/StaticAnalyzer/Core/Analyses.def" 261 .Default(NumPurgeModes); 262 if (Value == NumPurgeModes) { 263 Diags.Report(diag::err_drv_invalid_value) 264 << A->getAsString(Args) << Name; 265 Success = false; 266 } else { 267 Opts.AnalysisPurgeOpt = Value; 268 } 269 } 270 271 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 272 StringRef Name = A->getValue(); 273 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 274 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 275 .Case(CMDFLAG, NAME) 276 #include "clang/StaticAnalyzer/Core/Analyses.def" 277 .Default(NumInliningModes); 278 if (Value == NumInliningModes) { 279 Diags.Report(diag::err_drv_invalid_value) 280 << A->getAsString(Args) << Name; 281 Success = false; 282 } else { 283 Opts.InliningMode = Value; 284 } 285 } 286 287 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 288 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 289 Opts.ShowCheckerHelpDeveloper = 290 Args.hasArg(OPT_analyzer_checker_help_developer); 291 292 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 293 Opts.ShowCheckerOptionAlphaList = 294 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 295 Opts.ShowCheckerOptionDeveloperList = 296 Args.hasArg(OPT_analyzer_checker_option_help_developer); 297 298 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 299 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 300 Opts.ShouldEmitErrorsOnInvalidConfigValue = 301 /* negated */!llvm::StringSwitch<bool>( 302 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 303 .Case("true", true) 304 .Case("false", false) 305 .Default(false); 306 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 307 308 Opts.visualizeExplodedGraphWithGraphViz = 309 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 310 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph); 311 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 312 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 313 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 314 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 315 Opts.AnalyzeNestedBlocks = 316 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 317 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 318 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 319 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 320 Opts.maxBlockVisitOnPath = 321 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 322 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 323 Opts.InlineMaxStackDepth = 324 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 325 Opts.InlineMaxStackDepth, Diags); 326 327 Opts.CheckersAndPackages.clear(); 328 for (const Arg *A : 329 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 330 A->claim(); 331 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 332 // We can have a list of comma separated checker names, e.g: 333 // '-analyzer-checker=cocoa,unix' 334 StringRef CheckerAndPackageList = A->getValue(); 335 SmallVector<StringRef, 16> CheckersAndPackages; 336 CheckerAndPackageList.split(CheckersAndPackages, ","); 337 for (const StringRef CheckerOrPackage : CheckersAndPackages) 338 Opts.CheckersAndPackages.emplace_back(CheckerOrPackage, IsEnabled); 339 } 340 341 // Go through the analyzer configuration options. 342 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 343 344 // We can have a list of comma separated config names, e.g: 345 // '-analyzer-config key1=val1,key2=val2' 346 StringRef configList = A->getValue(); 347 SmallVector<StringRef, 4> configVals; 348 configList.split(configVals, ","); 349 for (const auto &configVal : configVals) { 350 StringRef key, val; 351 std::tie(key, val) = configVal.split("="); 352 if (val.empty()) { 353 Diags.Report(SourceLocation(), 354 diag::err_analyzer_config_no_value) << configVal; 355 Success = false; 356 break; 357 } 358 if (val.find('=') != StringRef::npos) { 359 Diags.Report(SourceLocation(), 360 diag::err_analyzer_config_multiple_values) 361 << configVal; 362 Success = false; 363 break; 364 } 365 366 // TODO: Check checker options too, possibly in CheckerRegistry. 367 // Leave unknown non-checker configs unclaimed. 368 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 369 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 370 Diags.Report(diag::err_analyzer_config_unknown) << key; 371 continue; 372 } 373 374 A->claim(); 375 Opts.Config[key] = val; 376 } 377 } 378 379 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 380 parseAnalyzerConfigs(Opts, &Diags); 381 else 382 parseAnalyzerConfigs(Opts, nullptr); 383 384 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 385 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 386 if (i != 0) 387 os << " "; 388 os << Args.getArgString(i); 389 } 390 os.flush(); 391 392 return Success; 393 } 394 395 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 396 StringRef OptionName, StringRef DefaultVal) { 397 return Config.insert({OptionName, DefaultVal}).first->second; 398 } 399 400 static void initOption(AnalyzerOptions::ConfigTable &Config, 401 DiagnosticsEngine *Diags, 402 StringRef &OptionField, StringRef Name, 403 StringRef DefaultVal) { 404 // String options may be known to invalid (e.g. if the expected string is a 405 // file name, but the file does not exist), those will have to be checked in 406 // parseConfigs. 407 OptionField = getStringOption(Config, Name, DefaultVal); 408 } 409 410 static void initOption(AnalyzerOptions::ConfigTable &Config, 411 DiagnosticsEngine *Diags, 412 bool &OptionField, StringRef Name, bool DefaultVal) { 413 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 414 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 415 .Case("true", true) 416 .Case("false", false) 417 .Default(None); 418 419 if (!PossiblyInvalidVal) { 420 if (Diags) 421 Diags->Report(diag::err_analyzer_config_invalid_input) 422 << Name << "a boolean"; 423 else 424 OptionField = DefaultVal; 425 } else 426 OptionField = PossiblyInvalidVal.getValue(); 427 } 428 429 static void initOption(AnalyzerOptions::ConfigTable &Config, 430 DiagnosticsEngine *Diags, 431 unsigned &OptionField, StringRef Name, 432 unsigned DefaultVal) { 433 434 OptionField = DefaultVal; 435 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 436 .getAsInteger(0, OptionField); 437 if (Diags && HasFailed) 438 Diags->Report(diag::err_analyzer_config_invalid_input) 439 << Name << "an unsigned"; 440 } 441 442 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 443 DiagnosticsEngine *Diags) { 444 // TODO: There's no need to store the entire configtable, it'd be plenty 445 // enough tostore checker options. 446 447 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 448 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 449 450 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 451 SHALLOW_VAL, DEEP_VAL) \ 452 switch (AnOpts.getUserMode()) { \ 453 case UMK_Shallow: \ 454 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 455 break; \ 456 case UMK_Deep: \ 457 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 458 break; \ 459 } \ 460 461 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 462 #undef ANALYZER_OPTION 463 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 464 465 // At this point, AnalyzerOptions is configured. Let's validate some options. 466 467 // FIXME: Here we try to validate the silenced checkers or packages are valid. 468 // The current approach only validates the registered checkers which does not 469 // contain the runtime enabled checkers and optimally we would validate both. 470 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 471 std::vector<StringRef> Checkers = 472 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 473 std::vector<StringRef> Packages = 474 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 475 476 SmallVector<StringRef, 16> CheckersAndPackages; 477 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 478 479 for (const StringRef CheckerOrPackage : CheckersAndPackages) { 480 if (Diags) { 481 bool IsChecker = CheckerOrPackage.contains('.'); 482 bool IsValidName = 483 IsChecker 484 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 485 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 486 487 if (!IsValidName) 488 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 489 << CheckerOrPackage; 490 } 491 492 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 493 } 494 } 495 496 if (!Diags) 497 return; 498 499 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 500 Diags->Report(diag::err_analyzer_config_invalid_input) 501 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 502 503 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 504 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 505 << "a filename"; 506 507 if (!AnOpts.ModelPath.empty() && 508 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 509 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 510 << "a filename"; 511 } 512 513 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 514 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 515 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 516 return true; 517 } 518 519 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 520 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 521 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 522 } 523 524 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 525 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 526 StringRef Value = A->getValue(); 527 if (Value == "small" || Value == "kernel" || Value == "medium" || 528 Value == "large" || Value == "tiny") 529 return Value; 530 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 531 } 532 return "default"; 533 } 534 535 static llvm::Reloc::Model getRelocModel(ArgList &Args, 536 DiagnosticsEngine &Diags) { 537 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 538 StringRef Value = A->getValue(); 539 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 540 .Case("static", llvm::Reloc::Static) 541 .Case("pic", llvm::Reloc::PIC_) 542 .Case("ropi", llvm::Reloc::ROPI) 543 .Case("rwpi", llvm::Reloc::RWPI) 544 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 545 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 546 .Default(None); 547 if (RM.hasValue()) 548 return *RM; 549 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 550 } 551 return llvm::Reloc::PIC_; 552 } 553 554 /// Create a new Regex instance out of the string value in \p RpassArg. 555 /// It returns a pointer to the newly generated Regex instance. 556 static std::shared_ptr<llvm::Regex> 557 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 558 Arg *RpassArg) { 559 StringRef Val = RpassArg->getValue(); 560 std::string RegexError; 561 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 562 if (!Pattern->isValid(RegexError)) { 563 Diags.Report(diag::err_drv_optimization_remark_pattern) 564 << RegexError << RpassArg->getAsString(Args); 565 Pattern.reset(); 566 } 567 return Pattern; 568 } 569 570 static bool parseDiagnosticLevelMask(StringRef FlagName, 571 const std::vector<std::string> &Levels, 572 DiagnosticsEngine *Diags, 573 DiagnosticLevelMask &M) { 574 bool Success = true; 575 for (const auto &Level : Levels) { 576 DiagnosticLevelMask const PM = 577 llvm::StringSwitch<DiagnosticLevelMask>(Level) 578 .Case("note", DiagnosticLevelMask::Note) 579 .Case("remark", DiagnosticLevelMask::Remark) 580 .Case("warning", DiagnosticLevelMask::Warning) 581 .Case("error", DiagnosticLevelMask::Error) 582 .Default(DiagnosticLevelMask::None); 583 if (PM == DiagnosticLevelMask::None) { 584 Success = false; 585 if (Diags) 586 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 587 } 588 M = M | PM; 589 } 590 return Success; 591 } 592 593 static void parseSanitizerKinds(StringRef FlagName, 594 const std::vector<std::string> &Sanitizers, 595 DiagnosticsEngine &Diags, SanitizerSet &S) { 596 for (const auto &Sanitizer : Sanitizers) { 597 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 598 if (K == SanitizerMask()) 599 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 600 else 601 S.set(K, true); 602 } 603 } 604 605 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 606 ArgList &Args, DiagnosticsEngine &D, 607 XRayInstrSet &S) { 608 llvm::SmallVector<StringRef, 2> BundleParts; 609 llvm::SplitString(Bundle, BundleParts, ","); 610 for (const auto B : BundleParts) { 611 auto Mask = parseXRayInstrValue(B); 612 if (Mask == XRayInstrKind::None) 613 if (B != "none") 614 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 615 else 616 S.Mask = Mask; 617 else if (Mask == XRayInstrKind::All) 618 S.Mask = Mask; 619 else 620 S.set(Mask, true); 621 } 622 } 623 624 // Set the profile kind for fprofile-instrument. 625 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 626 DiagnosticsEngine &Diags) { 627 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 628 if (A == nullptr) 629 return; 630 StringRef S = A->getValue(); 631 unsigned I = llvm::StringSwitch<unsigned>(S) 632 .Case("none", CodeGenOptions::ProfileNone) 633 .Case("clang", CodeGenOptions::ProfileClangInstr) 634 .Case("llvm", CodeGenOptions::ProfileIRInstr) 635 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 636 .Default(~0U); 637 if (I == ~0U) { 638 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 639 << S; 640 return; 641 } 642 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 643 Opts.setProfileInstr(Instrumentor); 644 } 645 646 // Set the profile kind using fprofile-instrument-use-path. 647 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 648 const Twine &ProfileName) { 649 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 650 // In error, return silently and let Clang PGOUse report the error message. 651 if (auto E = ReaderOrErr.takeError()) { 652 llvm::consumeError(std::move(E)); 653 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 654 return; 655 } 656 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 657 std::move(ReaderOrErr.get()); 658 if (PGOReader->isIRLevelProfile()) { 659 if (PGOReader->hasCSIRLevelProfile()) 660 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 661 else 662 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 663 } else 664 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 665 } 666 667 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 668 DiagnosticsEngine &Diags, 669 const TargetOptions &TargetOpts, 670 const FrontendOptions &FrontendOpts) { 671 bool Success = true; 672 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 673 674 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 675 // TODO: This could be done in Driver 676 unsigned MaxOptLevel = 3; 677 if (OptimizationLevel > MaxOptLevel) { 678 // If the optimization level is not supported, fall back on the default 679 // optimization 680 Diags.Report(diag::warn_drv_optimization_value) 681 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 682 OptimizationLevel = MaxOptLevel; 683 } 684 Opts.OptimizationLevel = OptimizationLevel; 685 686 // At O0 we want to fully disable inlining outside of cases marked with 687 // 'alwaysinline' that are required for correctness. 688 Opts.setInlining((Opts.OptimizationLevel == 0) 689 ? CodeGenOptions::OnlyAlwaysInlining 690 : CodeGenOptions::NormalInlining); 691 // Explicit inlining flags can disable some or all inlining even at 692 // optimization levels above zero. 693 if (Arg *InlineArg = Args.getLastArg( 694 options::OPT_finline_functions, options::OPT_finline_hint_functions, 695 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 696 if (Opts.OptimizationLevel > 0) { 697 const Option &InlineOpt = InlineArg->getOption(); 698 if (InlineOpt.matches(options::OPT_finline_functions)) 699 Opts.setInlining(CodeGenOptions::NormalInlining); 700 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 701 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 702 else 703 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 704 } 705 } 706 707 Opts.ExperimentalNewPassManager = Args.hasFlag( 708 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 709 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 710 711 Opts.DebugPassManager = 712 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 713 /* Default */ false); 714 715 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 716 StringRef Name = A->getValue(); 717 if (Name == "Accelerate") 718 Opts.setVecLib(CodeGenOptions::Accelerate); 719 else if (Name == "MASSV") 720 Opts.setVecLib(CodeGenOptions::MASSV); 721 else if (Name == "SVML") 722 Opts.setVecLib(CodeGenOptions::SVML); 723 else if (Name == "none") 724 Opts.setVecLib(CodeGenOptions::NoLibrary); 725 else 726 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 727 } 728 729 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 730 unsigned Val = 731 llvm::StringSwitch<unsigned>(A->getValue()) 732 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 733 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 734 .Case("limited", codegenoptions::LimitedDebugInfo) 735 .Case("standalone", codegenoptions::FullDebugInfo) 736 .Default(~0U); 737 if (Val == ~0U) 738 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 739 << A->getValue(); 740 else 741 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 742 } 743 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 744 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 745 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 746 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 747 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 748 .Default(~0U); 749 if (Val == ~0U) 750 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 751 << A->getValue(); 752 else 753 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 754 } 755 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 756 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 757 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 758 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 759 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 760 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 761 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 762 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 763 Opts.SplitDwarfOutput = Args.getLastArgValue(OPT_split_dwarf_output); 764 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 765 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 766 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 767 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 768 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 769 770 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 771 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 772 773 if (const Arg *A = 774 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 775 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 776 777 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 778 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 779 780 llvm::Triple T(TargetOpts.Triple); 781 llvm::Triple::ArchType Arch = T.getArch(); 782 if (Opts.OptimizationLevel > 0 && 783 (Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64)) 784 Opts.EnableDebugEntryValues = Args.hasArg(OPT_femit_debug_entry_values); 785 786 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 787 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 788 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 789 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 790 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 791 OPT_fuse_register_sized_bitfield_access); 792 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 793 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 794 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 795 Args.hasArg(OPT_new_struct_path_tbaa); 796 Opts.FineGrainedBitfieldAccesses = 797 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 798 OPT_fno_fine_grained_bitfield_accesses, false); 799 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 800 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line); 801 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 802 Opts.NoCommon = Args.hasArg(OPT_fno_common); 803 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 804 Opts.OptimizeSize = getOptimizationLevelSize(Args); 805 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 806 Args.hasArg(OPT_ffreestanding)); 807 if (Opts.SimplifyLibCalls) 808 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 809 Opts.UnrollLoops = 810 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 811 (Opts.OptimizationLevel > 1)); 812 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 813 814 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 815 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 816 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 817 Opts.DebugInfoForProfiling = Args.hasFlag( 818 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 819 Opts.DebugNameTable = static_cast<unsigned>( 820 Args.hasArg(OPT_ggnu_pubnames) 821 ? llvm::DICompileUnit::DebugNameTableKind::GNU 822 : Args.hasArg(OPT_gpubnames) 823 ? llvm::DICompileUnit::DebugNameTableKind::Default 824 : llvm::DICompileUnit::DebugNameTableKind::None); 825 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 826 827 setPGOInstrumentor(Opts, Args, Diags); 828 Opts.InstrProfileOutput = 829 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 830 Opts.ProfileInstrumentUsePath = 831 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 832 if (!Opts.ProfileInstrumentUsePath.empty()) 833 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 834 Opts.ProfileRemappingFile = 835 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 836 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 837 Diags.Report(diag::err_drv_argument_only_allowed_with) 838 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 839 << "-fexperimental-new-pass-manager"; 840 } 841 842 Opts.CoverageMapping = 843 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 844 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 845 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 846 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 847 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 848 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 849 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 850 Opts.RegisterGlobalDtorsWithAtExit = 851 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 852 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 853 Opts.CodeModel = TargetOpts.CodeModel; 854 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 855 856 // Handle -mframe-pointer option. 857 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 858 CodeGenOptions::FramePointerKind FP; 859 StringRef Name = A->getValue(); 860 bool ValidFP = true; 861 if (Name == "none") 862 FP = CodeGenOptions::FramePointerKind::None; 863 else if (Name == "non-leaf") 864 FP = CodeGenOptions::FramePointerKind::NonLeaf; 865 else if (Name == "all") 866 FP = CodeGenOptions::FramePointerKind::All; 867 else { 868 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 869 Success = false; 870 ValidFP = false; 871 } 872 if (ValidFP) 873 Opts.setFramePointer(FP); 874 } 875 876 // -pg may override -mframe-pointer 877 // TODO: This should be merged into getFramePointerKind in Clang.cpp. 878 if (Args.hasArg(OPT_pg)) 879 Opts.setFramePointer(CodeGenOptions::FramePointerKind::All); 880 881 Opts.DisableFree = Args.hasArg(OPT_disable_free); 882 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 883 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 884 Opts.NoEscapingBlockTailCalls = 885 Args.hasArg(OPT_fno_escaping_block_tail_calls); 886 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 887 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 888 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 889 Args.hasArg(OPT_cl_fast_relaxed_math); 890 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 891 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 892 Args.hasArg(OPT_cl_finite_math_only) || 893 Args.hasArg(OPT_cl_fast_relaxed_math)); 894 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 895 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 896 Args.hasArg(OPT_cl_finite_math_only) || 897 Args.hasArg(OPT_cl_fast_relaxed_math)); 898 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 899 Args.hasArg(OPT_cl_no_signed_zeros) || 900 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 901 Args.hasArg(OPT_cl_fast_relaxed_math)); 902 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 903 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 904 (Args.hasArg(OPT_fcuda_is_device) && 905 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 906 Opts.CorrectlyRoundedDivSqrt = 907 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 908 Opts.UniformWGSize = 909 Args.hasArg(OPT_cl_uniform_work_group_size); 910 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 911 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 912 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 913 Opts.StrictFloatCastOverflow = 914 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 915 916 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 917 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 918 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 919 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 920 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 921 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 922 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 923 Opts.IncrementalLinkerCompatible = 924 Args.hasArg(OPT_mincremental_linker_compatible); 925 Opts.PIECopyRelocations = 926 Args.hasArg(OPT_mpie_copy_relocations); 927 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 928 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 929 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 930 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 931 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 932 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 933 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 934 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 935 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 936 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 937 Args.hasArg(OPT_cl_fast_relaxed_math); 938 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 939 Opts.RelocationModel = getRelocModel(Args, Diags); 940 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 941 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 942 Diags.Report(diag::err_drv_invalid_value) 943 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 944 << Opts.ThreadModel; 945 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 946 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 947 948 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 949 OPT_fno_function_sections, false); 950 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 951 OPT_fno_data_sections, false); 952 Opts.StackSizeSection = 953 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 954 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 955 OPT_fno_unique_section_names, true); 956 957 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 958 959 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 960 961 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 962 963 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 964 965 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 966 Opts.PrepareForThinLTO = false; 967 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 968 StringRef S = A->getValue(); 969 if (S == "thin") 970 Opts.PrepareForThinLTO = true; 971 else if (S != "full") 972 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 973 } 974 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 975 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 976 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 977 if (IK.getLanguage() != Language::LLVM_IR) 978 Diags.Report(diag::err_drv_argument_only_allowed_with) 979 << A->getAsString(Args) << "-x ir"; 980 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 981 } 982 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 983 Opts.SaveTempsFilePrefix = 984 llvm::StringSwitch<std::string>(A->getValue()) 985 .Case("obj", FrontendOpts.OutputFile) 986 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 987 988 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 989 990 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 991 992 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 993 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 994 995 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 996 997 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 998 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 999 1000 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1001 1002 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1003 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1004 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1005 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1006 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 1007 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 1008 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 1009 Opts.CoverageNoFunctionNamesInData = 1010 Args.hasArg(OPT_coverage_no_function_names_in_data); 1011 Opts.ProfileFilterFiles = 1012 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 1013 Opts.ProfileExcludeFiles = 1014 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 1015 Opts.CoverageExitBlockBeforeBody = 1016 Args.hasArg(OPT_coverage_exit_block_before_body); 1017 if (Args.hasArg(OPT_coverage_version_EQ)) { 1018 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1019 if (CoverageVersion.size() != 4) { 1020 Diags.Report(diag::err_drv_invalid_value) 1021 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1022 << CoverageVersion; 1023 } else { 1024 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1025 } 1026 } 1027 } 1028 // Handle -fembed-bitcode option. 1029 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1030 StringRef Name = A->getValue(); 1031 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1032 .Case("off", CodeGenOptions::Embed_Off) 1033 .Case("all", CodeGenOptions::Embed_All) 1034 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1035 .Case("marker", CodeGenOptions::Embed_Marker) 1036 .Default(~0U); 1037 if (Model == ~0U) { 1038 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1039 Success = false; 1040 } else 1041 Opts.setEmbedBitcode( 1042 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1043 } 1044 // FIXME: For backend options that are not yet recorded as function 1045 // attributes in the IR, keep track of them so we can embed them in a 1046 // separate data section and use them when building the bitcode. 1047 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1048 for (const auto &A : Args) { 1049 // Do not encode output and input. 1050 if (A->getOption().getID() == options::OPT_o || 1051 A->getOption().getID() == options::OPT_INPUT || 1052 A->getOption().getID() == options::OPT_x || 1053 A->getOption().getID() == options::OPT_fembed_bitcode || 1054 (A->getOption().getGroup().isValid() && 1055 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1056 continue; 1057 ArgStringList ASL; 1058 A->render(Args, ASL); 1059 for (const auto &arg : ASL) { 1060 StringRef ArgStr(arg); 1061 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1062 // using \00 to separate each commandline options. 1063 Opts.CmdArgs.push_back('\0'); 1064 } 1065 } 1066 } 1067 1068 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1069 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1070 Opts.InstrumentFunctionsAfterInlining = 1071 Args.hasArg(OPT_finstrument_functions_after_inlining); 1072 Opts.InstrumentFunctionEntryBare = 1073 Args.hasArg(OPT_finstrument_function_entry_bare); 1074 1075 Opts.XRayInstrumentFunctions = 1076 Args.hasArg(OPT_fxray_instrument); 1077 Opts.XRayAlwaysEmitCustomEvents = 1078 Args.hasArg(OPT_fxray_always_emit_customevents); 1079 Opts.XRayAlwaysEmitTypedEvents = 1080 Args.hasArg(OPT_fxray_always_emit_typedevents); 1081 Opts.XRayInstructionThreshold = 1082 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1083 1084 auto XRayInstrBundles = 1085 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1086 if (XRayInstrBundles.empty()) 1087 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1088 else 1089 for (const auto &A : XRayInstrBundles) 1090 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1091 Diags, Opts.XRayInstrumentationBundle); 1092 1093 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1094 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1095 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1096 1097 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1098 StringRef Name = A->getValue(); 1099 if (Name == "full") { 1100 Opts.CFProtectionReturn = 1; 1101 Opts.CFProtectionBranch = 1; 1102 } else if (Name == "return") 1103 Opts.CFProtectionReturn = 1; 1104 else if (Name == "branch") 1105 Opts.CFProtectionBranch = 1; 1106 else if (Name != "none") { 1107 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1108 Success = false; 1109 } 1110 } 1111 1112 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1113 OPT_compress_debug_sections_EQ)) { 1114 if (A->getOption().getID() == OPT_compress_debug_sections) { 1115 // TODO: be more clever about the compression type auto-detection 1116 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1117 } else { 1118 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1119 .Case("none", llvm::DebugCompressionType::None) 1120 .Case("zlib", llvm::DebugCompressionType::Z) 1121 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1122 .Default(llvm::DebugCompressionType::None); 1123 Opts.setCompressDebugSections(DCT); 1124 } 1125 } 1126 1127 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1128 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1129 for (auto *A : 1130 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1131 CodeGenOptions::BitcodeFileToLink F; 1132 F.Filename = A->getValue(); 1133 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1134 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1135 // When linking CUDA bitcode, propagate function attributes so that 1136 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1137 F.PropagateAttrs = true; 1138 F.Internalize = true; 1139 } 1140 Opts.LinkBitcodeFiles.push_back(F); 1141 } 1142 Opts.SanitizeCoverageType = 1143 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1144 Opts.SanitizeCoverageIndirectCalls = 1145 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1146 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1147 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1148 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1149 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1150 Opts.SanitizeCoverage8bitCounters = 1151 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1152 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1153 Opts.SanitizeCoverageTracePCGuard = 1154 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1155 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1156 Opts.SanitizeCoverageInline8bitCounters = 1157 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1158 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1159 Opts.SanitizeCoverageStackDepth = 1160 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1161 Opts.SanitizeMemoryTrackOrigins = 1162 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1163 Opts.SanitizeMemoryUseAfterDtor = 1164 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1165 OPT_fno_sanitize_memory_use_after_dtor, 1166 false); 1167 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1168 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1169 Opts.SanitizeCfiICallGeneralizePointers = 1170 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1171 Opts.SanitizeCfiCanonicalJumpTables = 1172 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1173 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1174 if (Arg *A = Args.getLastArg( 1175 OPT_fsanitize_address_poison_custom_array_cookie, 1176 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1177 Opts.SanitizeAddressPoisonCustomArrayCookie = 1178 A->getOption().getID() == 1179 OPT_fsanitize_address_poison_custom_array_cookie; 1180 } 1181 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1182 OPT_fno_sanitize_address_use_after_scope)) { 1183 Opts.SanitizeAddressUseAfterScope = 1184 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1185 } 1186 Opts.SanitizeAddressGlobalsDeadStripping = 1187 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1188 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1189 OPT_fno_sanitize_address_use_odr_indicator)) { 1190 Opts.SanitizeAddressUseOdrIndicator = 1191 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1192 } 1193 Opts.SSPBufferSize = 1194 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1195 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1196 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1197 StringRef Val = A->getValue(); 1198 unsigned StackAlignment = Opts.StackAlignment; 1199 Val.getAsInteger(10, StackAlignment); 1200 Opts.StackAlignment = StackAlignment; 1201 } 1202 1203 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1204 StringRef Val = A->getValue(); 1205 unsigned StackProbeSize = Opts.StackProbeSize; 1206 Val.getAsInteger(0, StackProbeSize); 1207 Opts.StackProbeSize = StackProbeSize; 1208 } 1209 1210 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1211 1212 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1213 StringRef Name = A->getValue(); 1214 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1215 .Case("legacy", CodeGenOptions::Legacy) 1216 .Case("non-legacy", CodeGenOptions::NonLegacy) 1217 .Case("mixed", CodeGenOptions::Mixed) 1218 .Default(~0U); 1219 if (Method == ~0U) { 1220 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1221 Success = false; 1222 } else { 1223 Opts.setObjCDispatchMethod( 1224 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1225 } 1226 } 1227 1228 1229 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1230 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1231 1232 if (Args.getLastArg(OPT_femulated_tls) || 1233 Args.getLastArg(OPT_fno_emulated_tls)) { 1234 Opts.ExplicitEmulatedTLS = true; 1235 Opts.EmulatedTLS = 1236 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1237 } 1238 1239 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1240 StringRef Name = A->getValue(); 1241 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1242 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1243 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1244 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1245 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1246 .Default(~0U); 1247 if (Model == ~0U) { 1248 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1249 Success = false; 1250 } else { 1251 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1252 } 1253 } 1254 1255 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1256 StringRef Val = A->getValue(); 1257 if (Val == "ieee") 1258 Opts.FPDenormalMode = "ieee"; 1259 else if (Val == "preserve-sign") 1260 Opts.FPDenormalMode = "preserve-sign"; 1261 else if (Val == "positive-zero") 1262 Opts.FPDenormalMode = "positive-zero"; 1263 else 1264 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1265 } 1266 1267 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1268 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1269 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1270 } else { 1271 assert(A->getOption().matches(OPT_freg_struct_return)); 1272 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1273 } 1274 } 1275 1276 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1277 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1278 bool NeedLocTracking = false; 1279 1280 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1281 if (!Opts.OptRecordFile.empty()) 1282 NeedLocTracking = true; 1283 1284 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1285 Opts.OptRecordPasses = A->getValue(); 1286 NeedLocTracking = true; 1287 } 1288 1289 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1290 Opts.OptRecordFormat = A->getValue(); 1291 NeedLocTracking = true; 1292 } 1293 1294 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1295 Opts.OptimizationRemarkPattern = 1296 GenerateOptimizationRemarkRegex(Diags, Args, A); 1297 NeedLocTracking = true; 1298 } 1299 1300 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1301 Opts.OptimizationRemarkMissedPattern = 1302 GenerateOptimizationRemarkRegex(Diags, Args, A); 1303 NeedLocTracking = true; 1304 } 1305 1306 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1307 Opts.OptimizationRemarkAnalysisPattern = 1308 GenerateOptimizationRemarkRegex(Diags, Args, A); 1309 NeedLocTracking = true; 1310 } 1311 1312 Opts.DiagnosticsWithHotness = 1313 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1314 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1315 bool UsingProfile = UsingSampleProfile || 1316 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1317 1318 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1319 // An IR file will contain PGO as metadata 1320 IK.getLanguage() != Language::LLVM_IR) 1321 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1322 << "-fdiagnostics-show-hotness"; 1323 1324 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1325 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1326 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1327 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1328 << "-fdiagnostics-hotness-threshold="; 1329 1330 // If the user requested to use a sample profile for PGO, then the 1331 // backend will need to track source location information so the profile 1332 // can be incorporated into the IR. 1333 if (UsingSampleProfile) 1334 NeedLocTracking = true; 1335 1336 // If the user requested a flag that requires source locations available in 1337 // the backend, make sure that the backend tracks source location information. 1338 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1339 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1340 1341 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1342 1343 // Parse -fsanitize-recover= arguments. 1344 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1345 parseSanitizerKinds("-fsanitize-recover=", 1346 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1347 Opts.SanitizeRecover); 1348 parseSanitizerKinds("-fsanitize-trap=", 1349 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1350 Opts.SanitizeTrap); 1351 1352 Opts.CudaGpuBinaryFileName = 1353 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1354 1355 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1356 1357 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1358 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1359 1360 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1361 1362 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1363 1364 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1365 StringRef SignScope = A->getValue(); 1366 1367 if (SignScope.equals_lower("none")) 1368 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1369 else if (SignScope.equals_lower("all")) 1370 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1371 else if (SignScope.equals_lower("non-leaf")) 1372 Opts.setSignReturnAddress( 1373 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1374 else 1375 Diags.Report(diag::err_drv_invalid_value) 1376 << A->getAsString(Args) << SignScope; 1377 1378 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1379 StringRef SignKey = A->getValue(); 1380 if (!SignScope.empty() && !SignKey.empty()) { 1381 if (SignKey.equals_lower("a_key")) 1382 Opts.setSignReturnAddressKey( 1383 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1384 else if (SignKey.equals_lower("b_key")) 1385 Opts.setSignReturnAddressKey( 1386 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1387 else 1388 Diags.Report(diag::err_drv_invalid_value) 1389 << A->getAsString(Args) << SignKey; 1390 } 1391 } 1392 } 1393 1394 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1395 1396 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1397 1398 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1399 1400 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1401 1402 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1403 1404 Opts.SymbolPartition = Args.getLastArgValue(OPT_fsymbol_partition_EQ); 1405 1406 return Success; 1407 } 1408 1409 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1410 ArgList &Args) { 1411 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1412 Opts.Targets = Args.getAllArgValues(OPT_MT); 1413 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1414 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1415 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1416 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1417 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1418 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1419 if (Args.hasArg(OPT_show_includes)) { 1420 // Writing both /showIncludes and preprocessor output to stdout 1421 // would produce interleaved output, so use stderr for /showIncludes. 1422 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1423 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1424 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1425 else 1426 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1427 } else { 1428 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1429 } 1430 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1431 Opts.ModuleDependencyOutputDir = 1432 Args.getLastArgValue(OPT_module_dependency_dir); 1433 if (Args.hasArg(OPT_MV)) 1434 Opts.OutputFormat = DependencyOutputFormat::NMake; 1435 // Add sanitizer blacklists as extra dependencies. 1436 // They won't be discovered by the regular preprocessor, so 1437 // we let make / ninja to know about this implicit dependency. 1438 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1439 // Only the -fmodule-file=<file> form. 1440 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1441 StringRef Val = A->getValue(); 1442 if (Val.find('=') == StringRef::npos) 1443 Opts.ExtraDeps.push_back(Val); 1444 } 1445 } 1446 1447 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1448 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1449 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1450 // Support both clang's -f[no-]color-diagnostics and gcc's 1451 // -f[no-]diagnostics-colors[=never|always|auto]. 1452 enum { 1453 Colors_On, 1454 Colors_Off, 1455 Colors_Auto 1456 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1457 for (auto *A : Args) { 1458 const Option &O = A->getOption(); 1459 if (O.matches(options::OPT_fcolor_diagnostics) || 1460 O.matches(options::OPT_fdiagnostics_color)) { 1461 ShowColors = Colors_On; 1462 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1463 O.matches(options::OPT_fno_diagnostics_color)) { 1464 ShowColors = Colors_Off; 1465 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1466 StringRef Value(A->getValue()); 1467 if (Value == "always") 1468 ShowColors = Colors_On; 1469 else if (Value == "never") 1470 ShowColors = Colors_Off; 1471 else if (Value == "auto") 1472 ShowColors = Colors_Auto; 1473 } 1474 } 1475 return ShowColors == Colors_On || 1476 (ShowColors == Colors_Auto && 1477 llvm::sys::Process::StandardErrHasColors()); 1478 } 1479 1480 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1481 DiagnosticsEngine *Diags) { 1482 bool Success = true; 1483 for (const auto &Prefix : VerifyPrefixes) { 1484 // Every prefix must start with a letter and contain only alphanumeric 1485 // characters, hyphens, and underscores. 1486 auto BadChar = llvm::find_if(Prefix, [](char C) { 1487 return !isAlphanumeric(C) && C != '-' && C != '_'; 1488 }); 1489 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1490 Success = false; 1491 if (Diags) { 1492 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1493 Diags->Report(diag::note_drv_verify_prefix_spelling); 1494 } 1495 } 1496 } 1497 return Success; 1498 } 1499 1500 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1501 DiagnosticsEngine *Diags, 1502 bool DefaultDiagColor, bool DefaultShowOpt) { 1503 bool Success = true; 1504 1505 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1506 if (Arg *A = 1507 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1508 Opts.DiagnosticSerializationFile = A->getValue(); 1509 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1510 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1511 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1512 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1513 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1514 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1515 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1516 OPT_fno_show_column, 1517 /*Default=*/true); 1518 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1519 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1520 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1521 Opts.ShowOptionNames = 1522 Args.hasFlag(OPT_fdiagnostics_show_option, 1523 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1524 1525 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1526 1527 // Default behavior is to not to show note include stacks. 1528 Opts.ShowNoteIncludeStack = false; 1529 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1530 OPT_fno_diagnostics_show_note_include_stack)) 1531 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1532 Opts.ShowNoteIncludeStack = true; 1533 1534 StringRef ShowOverloads = 1535 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1536 if (ShowOverloads == "best") 1537 Opts.setShowOverloads(Ovl_Best); 1538 else if (ShowOverloads == "all") 1539 Opts.setShowOverloads(Ovl_All); 1540 else { 1541 Success = false; 1542 if (Diags) 1543 Diags->Report(diag::err_drv_invalid_value) 1544 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1545 << ShowOverloads; 1546 } 1547 1548 StringRef ShowCategory = 1549 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1550 if (ShowCategory == "none") 1551 Opts.ShowCategories = 0; 1552 else if (ShowCategory == "id") 1553 Opts.ShowCategories = 1; 1554 else if (ShowCategory == "name") 1555 Opts.ShowCategories = 2; 1556 else { 1557 Success = false; 1558 if (Diags) 1559 Diags->Report(diag::err_drv_invalid_value) 1560 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1561 << ShowCategory; 1562 } 1563 1564 StringRef Format = 1565 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1566 if (Format == "clang") 1567 Opts.setFormat(DiagnosticOptions::Clang); 1568 else if (Format == "msvc") 1569 Opts.setFormat(DiagnosticOptions::MSVC); 1570 else if (Format == "msvc-fallback") { 1571 Opts.setFormat(DiagnosticOptions::MSVC); 1572 Opts.CLFallbackMode = true; 1573 } else if (Format == "vi") 1574 Opts.setFormat(DiagnosticOptions::Vi); 1575 else { 1576 Success = false; 1577 if (Diags) 1578 Diags->Report(diag::err_drv_invalid_value) 1579 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1580 << Format; 1581 } 1582 1583 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1584 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1585 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1586 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1587 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1588 if (Args.hasArg(OPT_verify)) 1589 Opts.VerifyPrefixes.push_back("expected"); 1590 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1591 // then sort it to prepare for fast lookup using std::binary_search. 1592 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1593 Opts.VerifyDiagnostics = false; 1594 Success = false; 1595 } 1596 else 1597 llvm::sort(Opts.VerifyPrefixes); 1598 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1599 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1600 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1601 Diags, DiagMask); 1602 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1603 DiagMask = DiagnosticLevelMask::All; 1604 Opts.setVerifyIgnoreUnexpected(DiagMask); 1605 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1606 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1607 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1608 Opts.MacroBacktraceLimit = 1609 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1610 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1611 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1612 Args, OPT_ftemplate_backtrace_limit, 1613 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1614 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1615 Args, OPT_fconstexpr_backtrace_limit, 1616 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1617 Opts.SpellCheckingLimit = getLastArgIntValue( 1618 Args, OPT_fspell_checking_limit, 1619 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1620 Opts.SnippetLineLimit = getLastArgIntValue( 1621 Args, OPT_fcaret_diagnostics_max_lines, 1622 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1623 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1624 DiagnosticOptions::DefaultTabStop, Diags); 1625 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1626 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1627 if (Diags) 1628 Diags->Report(diag::warn_ignoring_ftabstop_value) 1629 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1630 } 1631 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1632 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1633 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1634 1635 return Success; 1636 } 1637 1638 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1639 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1640 } 1641 1642 /// Parse the argument to the -ftest-module-file-extension 1643 /// command-line argument. 1644 /// 1645 /// \returns true on error, false on success. 1646 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1647 std::string &BlockName, 1648 unsigned &MajorVersion, 1649 unsigned &MinorVersion, 1650 bool &Hashed, 1651 std::string &UserInfo) { 1652 SmallVector<StringRef, 5> Args; 1653 Arg.split(Args, ':', 5); 1654 if (Args.size() < 5) 1655 return true; 1656 1657 BlockName = Args[0]; 1658 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1659 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1660 if (Args[3].getAsInteger(2, Hashed)) return true; 1661 if (Args.size() > 4) 1662 UserInfo = Args[4]; 1663 return false; 1664 } 1665 1666 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1667 DiagnosticsEngine &Diags, 1668 bool &IsHeaderFile) { 1669 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1670 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1671 switch (A->getOption().getID()) { 1672 default: 1673 llvm_unreachable("Invalid option in group!"); 1674 case OPT_ast_list: 1675 Opts.ProgramAction = frontend::ASTDeclList; break; 1676 case OPT_ast_dump_all_EQ: 1677 case OPT_ast_dump_EQ: { 1678 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1679 .CaseLower("default", ADOF_Default) 1680 .CaseLower("json", ADOF_JSON) 1681 .Default(std::numeric_limits<unsigned>::max()); 1682 1683 if (Val != std::numeric_limits<unsigned>::max()) 1684 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1685 else { 1686 Diags.Report(diag::err_drv_invalid_value) 1687 << A->getAsString(Args) << A->getValue(); 1688 Opts.ASTDumpFormat = ADOF_Default; 1689 } 1690 LLVM_FALLTHROUGH; 1691 } 1692 case OPT_ast_dump: 1693 case OPT_ast_dump_all: 1694 case OPT_ast_dump_lookups: 1695 Opts.ProgramAction = frontend::ASTDump; break; 1696 case OPT_ast_print: 1697 Opts.ProgramAction = frontend::ASTPrint; break; 1698 case OPT_ast_view: 1699 Opts.ProgramAction = frontend::ASTView; break; 1700 case OPT_compiler_options_dump: 1701 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1702 case OPT_dump_raw_tokens: 1703 Opts.ProgramAction = frontend::DumpRawTokens; break; 1704 case OPT_dump_tokens: 1705 Opts.ProgramAction = frontend::DumpTokens; break; 1706 case OPT_S: 1707 Opts.ProgramAction = frontend::EmitAssembly; break; 1708 case OPT_emit_llvm_bc: 1709 Opts.ProgramAction = frontend::EmitBC; break; 1710 case OPT_emit_html: 1711 Opts.ProgramAction = frontend::EmitHTML; break; 1712 case OPT_emit_llvm: 1713 Opts.ProgramAction = frontend::EmitLLVM; break; 1714 case OPT_emit_llvm_only: 1715 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1716 case OPT_emit_codegen_only: 1717 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1718 case OPT_emit_obj: 1719 Opts.ProgramAction = frontend::EmitObj; break; 1720 case OPT_fixit_EQ: 1721 Opts.FixItSuffix = A->getValue(); 1722 LLVM_FALLTHROUGH; 1723 case OPT_fixit: 1724 Opts.ProgramAction = frontend::FixIt; break; 1725 case OPT_emit_module: 1726 Opts.ProgramAction = frontend::GenerateModule; break; 1727 case OPT_emit_module_interface: 1728 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1729 case OPT_emit_header_module: 1730 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1731 case OPT_emit_pch: 1732 Opts.ProgramAction = frontend::GeneratePCH; break; 1733 case OPT_emit_iterface_stubs: { 1734 StringRef ArgStr = 1735 Args.hasArg(OPT_iterface_stub_version_EQ) 1736 ? Args.getLastArgValue(OPT_iterface_stub_version_EQ) 1737 : "experimental-ifs-v1"; 1738 if (ArgStr == "experimental-yaml-elf-v1" || 1739 ArgStr == "experimental-tapi-elf-v1") { 1740 std::string ErrorMessage = 1741 "Invalid interface stub format: " + ArgStr.str() + 1742 " is deprecated."; 1743 Diags.Report(diag::err_drv_invalid_value) 1744 << "Must specify a valid interface stub format type, ie: " 1745 "-interface-stub-version=experimental-ifs-v1" 1746 << ErrorMessage; 1747 } else if (ArgStr != "experimental-ifs-v1") { 1748 std::string ErrorMessage = 1749 "Invalid interface stub format: " + ArgStr.str() + "."; 1750 Diags.Report(diag::err_drv_invalid_value) 1751 << "Must specify a valid interface stub format type, ie: " 1752 "-interface-stub-version=experimental-ifs-v1" 1753 << ErrorMessage; 1754 } else { 1755 Opts.ProgramAction = frontend::GenerateInterfaceIfsExpV1; 1756 } 1757 break; 1758 } 1759 case OPT_init_only: 1760 Opts.ProgramAction = frontend::InitOnly; break; 1761 case OPT_fsyntax_only: 1762 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1763 case OPT_module_file_info: 1764 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1765 case OPT_verify_pch: 1766 Opts.ProgramAction = frontend::VerifyPCH; break; 1767 case OPT_print_preamble: 1768 Opts.ProgramAction = frontend::PrintPreamble; break; 1769 case OPT_E: 1770 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1771 case OPT_templight_dump: 1772 Opts.ProgramAction = frontend::TemplightDump; break; 1773 case OPT_rewrite_macros: 1774 Opts.ProgramAction = frontend::RewriteMacros; break; 1775 case OPT_rewrite_objc: 1776 Opts.ProgramAction = frontend::RewriteObjC; break; 1777 case OPT_rewrite_test: 1778 Opts.ProgramAction = frontend::RewriteTest; break; 1779 case OPT_analyze: 1780 Opts.ProgramAction = frontend::RunAnalysis; break; 1781 case OPT_migrate: 1782 Opts.ProgramAction = frontend::MigrateSource; break; 1783 case OPT_Eonly: 1784 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1785 case OPT_print_dependency_directives_minimized_source: 1786 Opts.ProgramAction = 1787 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1788 break; 1789 } 1790 } 1791 1792 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1793 Opts.Plugins.emplace_back(A->getValue(0)); 1794 Opts.ProgramAction = frontend::PluginAction; 1795 Opts.ActionName = A->getValue(); 1796 } 1797 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1798 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1799 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1800 1801 for (const std::string &Arg : 1802 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1803 std::string BlockName; 1804 unsigned MajorVersion; 1805 unsigned MinorVersion; 1806 bool Hashed; 1807 std::string UserInfo; 1808 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1809 MinorVersion, Hashed, UserInfo)) { 1810 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1811 1812 continue; 1813 } 1814 1815 // Add the testing module file extension. 1816 Opts.ModuleFileExtensions.push_back( 1817 std::make_shared<TestModuleFileExtension>( 1818 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1819 } 1820 1821 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1822 Opts.CodeCompletionAt = 1823 ParsedSourceLocation::FromString(A->getValue()); 1824 if (Opts.CodeCompletionAt.FileName.empty()) 1825 Diags.Report(diag::err_drv_invalid_value) 1826 << A->getAsString(Args) << A->getValue(); 1827 } 1828 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1829 1830 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1831 Opts.Plugins = Args.getAllArgValues(OPT_load); 1832 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1833 Opts.ShowHelp = Args.hasArg(OPT_help); 1834 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1835 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1836 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1837 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1838 Opts.TimeTraceGranularity = getLastArgIntValue( 1839 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1840 Opts.ShowVersion = Args.hasArg(OPT_version); 1841 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1842 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1843 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1844 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1845 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1846 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1847 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1848 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1849 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1850 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1851 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1852 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1853 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1854 // Only the -fmodule-file=<file> form. 1855 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1856 StringRef Val = A->getValue(); 1857 if (Val.find('=') == StringRef::npos) 1858 Opts.ModuleFiles.push_back(Val); 1859 } 1860 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1861 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1862 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1863 1864 Opts.CodeCompleteOpts.IncludeMacros 1865 = Args.hasArg(OPT_code_completion_macros); 1866 Opts.CodeCompleteOpts.IncludeCodePatterns 1867 = Args.hasArg(OPT_code_completion_patterns); 1868 Opts.CodeCompleteOpts.IncludeGlobals 1869 = !Args.hasArg(OPT_no_code_completion_globals); 1870 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1871 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1872 Opts.CodeCompleteOpts.IncludeBriefComments 1873 = Args.hasArg(OPT_code_completion_brief_comments); 1874 Opts.CodeCompleteOpts.IncludeFixIts 1875 = Args.hasArg(OPT_code_completion_with_fixits); 1876 1877 Opts.OverrideRecordLayoutsFile 1878 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1879 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1880 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1881 1882 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1883 OPT_arcmt_modify, 1884 OPT_arcmt_migrate)) { 1885 switch (A->getOption().getID()) { 1886 default: 1887 llvm_unreachable("missed a case"); 1888 case OPT_arcmt_check: 1889 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1890 break; 1891 case OPT_arcmt_modify: 1892 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1893 break; 1894 case OPT_arcmt_migrate: 1895 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1896 break; 1897 } 1898 } 1899 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1900 Opts.ARCMTMigrateReportOut 1901 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1902 Opts.ARCMTMigrateEmitARCErrors 1903 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1904 1905 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1906 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1907 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1908 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1909 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1910 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1911 if (Args.hasArg(OPT_objcmt_migrate_property)) 1912 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1913 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1914 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1915 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1916 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1917 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1918 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1919 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1920 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1921 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1922 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1923 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1924 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1925 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1926 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1927 if (Args.hasArg(OPT_objcmt_atomic_property)) 1928 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1929 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1930 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1931 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1932 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1933 if (Args.hasArg(OPT_objcmt_migrate_all)) 1934 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1935 1936 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1937 1938 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1939 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1940 Diags.Report(diag::err_drv_argument_not_allowed_with) 1941 << "ARC migration" << "ObjC migration"; 1942 } 1943 1944 InputKind DashX(Language::Unknown); 1945 if (const Arg *A = Args.getLastArg(OPT_x)) { 1946 StringRef XValue = A->getValue(); 1947 1948 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1949 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1950 bool Preprocessed = XValue.consume_back("-cpp-output"); 1951 bool ModuleMap = XValue.consume_back("-module-map"); 1952 IsHeaderFile = 1953 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1954 1955 // Principal languages. 1956 DashX = llvm::StringSwitch<InputKind>(XValue) 1957 .Case("c", Language::C) 1958 .Case("cl", Language::OpenCL) 1959 .Case("cuda", Language::CUDA) 1960 .Case("hip", Language::HIP) 1961 .Case("c++", Language::CXX) 1962 .Case("objective-c", Language::ObjC) 1963 .Case("objective-c++", Language::ObjCXX) 1964 .Case("renderscript", Language::RenderScript) 1965 .Default(Language::Unknown); 1966 1967 // "objc[++]-cpp-output" is an acceptable synonym for 1968 // "objective-c[++]-cpp-output". 1969 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1970 DashX = llvm::StringSwitch<InputKind>(XValue) 1971 .Case("objc", Language::ObjC) 1972 .Case("objc++", Language::ObjCXX) 1973 .Default(Language::Unknown); 1974 1975 // Some special cases cannot be combined with suffixes. 1976 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1977 DashX = llvm::StringSwitch<InputKind>(XValue) 1978 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 1979 .Case("assembler-with-cpp", Language::Asm) 1980 .Cases("ast", "pcm", 1981 InputKind(Language::Unknown, InputKind::Precompiled)) 1982 .Case("ir", Language::LLVM_IR) 1983 .Default(Language::Unknown); 1984 1985 if (DashX.isUnknown()) 1986 Diags.Report(diag::err_drv_invalid_value) 1987 << A->getAsString(Args) << A->getValue(); 1988 1989 if (Preprocessed) 1990 DashX = DashX.getPreprocessed(); 1991 if (ModuleMap) 1992 DashX = DashX.withFormat(InputKind::ModuleMap); 1993 } 1994 1995 // '-' is the default input if none is given. 1996 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1997 Opts.Inputs.clear(); 1998 if (Inputs.empty()) 1999 Inputs.push_back("-"); 2000 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2001 InputKind IK = DashX; 2002 if (IK.isUnknown()) { 2003 IK = FrontendOptions::getInputKindForExtension( 2004 StringRef(Inputs[i]).rsplit('.').second); 2005 // FIXME: Warn on this? 2006 if (IK.isUnknown()) 2007 IK = Language::C; 2008 // FIXME: Remove this hack. 2009 if (i == 0) 2010 DashX = IK; 2011 } 2012 2013 // The -emit-module action implicitly takes a module map. 2014 if (Opts.ProgramAction == frontend::GenerateModule && 2015 IK.getFormat() == InputKind::Source) 2016 IK = IK.withFormat(InputKind::ModuleMap); 2017 2018 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 2019 } 2020 2021 return DashX; 2022 } 2023 2024 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2025 void *MainAddr) { 2026 std::string ClangExecutable = 2027 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2028 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2029 } 2030 2031 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2032 const std::string &WorkingDir) { 2033 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 2034 Opts.Verbose = Args.hasArg(OPT_v); 2035 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2036 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2037 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2038 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2039 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2040 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 2041 2042 // Canonicalize -fmodules-cache-path before storing it. 2043 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2044 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2045 if (WorkingDir.empty()) 2046 llvm::sys::fs::make_absolute(P); 2047 else 2048 llvm::sys::fs::make_absolute(WorkingDir, P); 2049 } 2050 llvm::sys::path::remove_dots(P); 2051 Opts.ModuleCachePath = P.str(); 2052 2053 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 2054 // Only the -fmodule-file=<name>=<file> form. 2055 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2056 StringRef Val = A->getValue(); 2057 if (Val.find('=') != StringRef::npos) 2058 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 2059 } 2060 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2061 Opts.AddPrebuiltModulePath(A->getValue()); 2062 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2063 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2064 Opts.ModulesValidateDiagnosticOptions = 2065 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2066 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2067 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2068 Opts.ModuleCachePruneInterval = 2069 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2070 Opts.ModuleCachePruneAfter = 2071 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2072 Opts.ModulesValidateOncePerBuildSession = 2073 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2074 Opts.BuildSessionTimestamp = 2075 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2076 Opts.ModulesValidateSystemHeaders = 2077 Args.hasArg(OPT_fmodules_validate_system_headers); 2078 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2079 Opts.ModuleFormat = A->getValue(); 2080 2081 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2082 StringRef MacroDef = A->getValue(); 2083 Opts.ModulesIgnoreMacros.insert( 2084 llvm::CachedHashString(MacroDef.split('=').first)); 2085 } 2086 2087 // Add -I..., -F..., and -index-header-map options in order. 2088 bool IsIndexHeaderMap = false; 2089 bool IsSysrootSpecified = 2090 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2091 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2092 if (A->getOption().matches(OPT_index_header_map)) { 2093 // -index-header-map applies to the next -I or -F. 2094 IsIndexHeaderMap = true; 2095 continue; 2096 } 2097 2098 frontend::IncludeDirGroup Group = 2099 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2100 2101 bool IsFramework = A->getOption().matches(OPT_F); 2102 std::string Path = A->getValue(); 2103 2104 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2105 SmallString<32> Buffer; 2106 llvm::sys::path::append(Buffer, Opts.Sysroot, 2107 llvm::StringRef(A->getValue()).substr(1)); 2108 Path = Buffer.str(); 2109 } 2110 2111 Opts.AddPath(Path, Group, IsFramework, 2112 /*IgnoreSysroot*/ true); 2113 IsIndexHeaderMap = false; 2114 } 2115 2116 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2117 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2118 for (const auto *A : 2119 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2120 if (A->getOption().matches(OPT_iprefix)) 2121 Prefix = A->getValue(); 2122 else if (A->getOption().matches(OPT_iwithprefix)) 2123 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2124 else 2125 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2126 } 2127 2128 for (const auto *A : Args.filtered(OPT_idirafter)) 2129 Opts.AddPath(A->getValue(), frontend::After, false, true); 2130 for (const auto *A : Args.filtered(OPT_iquote)) 2131 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2132 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2133 Opts.AddPath(A->getValue(), frontend::System, false, 2134 !A->getOption().matches(OPT_iwithsysroot)); 2135 for (const auto *A : Args.filtered(OPT_iframework)) 2136 Opts.AddPath(A->getValue(), frontend::System, true, true); 2137 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2138 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2139 /*IgnoreSysRoot=*/false); 2140 2141 // Add the paths for the various language specific isystem flags. 2142 for (const auto *A : Args.filtered(OPT_c_isystem)) 2143 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2144 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2145 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2146 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2147 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2148 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2149 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2150 2151 // Add the internal paths from a driver that detects standard include paths. 2152 for (const auto *A : 2153 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2154 frontend::IncludeDirGroup Group = frontend::System; 2155 if (A->getOption().matches(OPT_internal_externc_isystem)) 2156 Group = frontend::ExternCSystem; 2157 Opts.AddPath(A->getValue(), Group, false, true); 2158 } 2159 2160 // Add the path prefixes which are implicitly treated as being system headers. 2161 for (const auto *A : 2162 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2163 Opts.AddSystemHeaderPrefix( 2164 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2165 2166 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2167 Opts.AddVFSOverlayFile(A->getValue()); 2168 } 2169 2170 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2171 const llvm::Triple &T, 2172 PreprocessorOptions &PPOpts, 2173 LangStandard::Kind LangStd) { 2174 // Set some properties which depend solely on the input kind; it would be nice 2175 // to move these to the language standard, and have the driver resolve the 2176 // input kind + language standard. 2177 // 2178 // FIXME: Perhaps a better model would be for a single source file to have 2179 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2180 // simultaneously active? 2181 if (IK.getLanguage() == Language::Asm) { 2182 Opts.AsmPreprocessor = 1; 2183 } else if (IK.isObjectiveC()) { 2184 Opts.ObjC = 1; 2185 } 2186 2187 if (LangStd == LangStandard::lang_unspecified) { 2188 // Based on the base language, pick one. 2189 switch (IK.getLanguage()) { 2190 case Language::Unknown: 2191 case Language::LLVM_IR: 2192 llvm_unreachable("Invalid input kind!"); 2193 case Language::OpenCL: 2194 LangStd = LangStandard::lang_opencl10; 2195 break; 2196 case Language::CUDA: 2197 LangStd = LangStandard::lang_cuda; 2198 break; 2199 case Language::Asm: 2200 case Language::C: 2201 #if defined(CLANG_DEFAULT_STD_C) 2202 LangStd = CLANG_DEFAULT_STD_C; 2203 #else 2204 // The PS4 uses C99 as the default C standard. 2205 if (T.isPS4()) 2206 LangStd = LangStandard::lang_gnu99; 2207 else 2208 LangStd = LangStandard::lang_gnu11; 2209 #endif 2210 break; 2211 case Language::ObjC: 2212 #if defined(CLANG_DEFAULT_STD_C) 2213 LangStd = CLANG_DEFAULT_STD_C; 2214 #else 2215 LangStd = LangStandard::lang_gnu11; 2216 #endif 2217 break; 2218 case Language::CXX: 2219 case Language::ObjCXX: 2220 #if defined(CLANG_DEFAULT_STD_CXX) 2221 LangStd = CLANG_DEFAULT_STD_CXX; 2222 #else 2223 LangStd = LangStandard::lang_gnucxx14; 2224 #endif 2225 break; 2226 case Language::RenderScript: 2227 LangStd = LangStandard::lang_c99; 2228 break; 2229 case Language::HIP: 2230 LangStd = LangStandard::lang_hip; 2231 break; 2232 } 2233 } 2234 2235 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2236 Opts.LineComment = Std.hasLineComments(); 2237 Opts.C99 = Std.isC99(); 2238 Opts.C11 = Std.isC11(); 2239 Opts.C17 = Std.isC17(); 2240 Opts.C2x = Std.isC2x(); 2241 Opts.CPlusPlus = Std.isCPlusPlus(); 2242 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2243 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2244 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2245 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2246 Opts.Digraphs = Std.hasDigraphs(); 2247 Opts.GNUMode = Std.isGNUMode(); 2248 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2249 Opts.HexFloats = Std.hasHexFloats(); 2250 Opts.ImplicitInt = Std.hasImplicitInt(); 2251 2252 // Set OpenCL Version. 2253 Opts.OpenCL = Std.isOpenCL(); 2254 if (LangStd == LangStandard::lang_opencl10) 2255 Opts.OpenCLVersion = 100; 2256 else if (LangStd == LangStandard::lang_opencl11) 2257 Opts.OpenCLVersion = 110; 2258 else if (LangStd == LangStandard::lang_opencl12) 2259 Opts.OpenCLVersion = 120; 2260 else if (LangStd == LangStandard::lang_opencl20) 2261 Opts.OpenCLVersion = 200; 2262 else if (LangStd == LangStandard::lang_openclcpp) 2263 Opts.OpenCLCPlusPlusVersion = 100; 2264 2265 // OpenCL has some additional defaults. 2266 if (Opts.OpenCL) { 2267 Opts.AltiVec = 0; 2268 Opts.ZVector = 0; 2269 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2270 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2271 Opts.NativeHalfType = 1; 2272 Opts.NativeHalfArgsAndReturns = 1; 2273 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2274 2275 // Include default header file for OpenCL. 2276 if (Opts.IncludeDefaultHeader) { 2277 if (Opts.DeclareOpenCLBuiltins) { 2278 // Only include base header file for builtin types and constants. 2279 PPOpts.Includes.push_back("opencl-c-base.h"); 2280 } else { 2281 PPOpts.Includes.push_back("opencl-c.h"); 2282 } 2283 } 2284 } 2285 2286 Opts.HIP = IK.getLanguage() == Language::HIP; 2287 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2288 if (Opts.CUDA) 2289 // Set default FP_CONTRACT to FAST. 2290 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2291 2292 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2293 if (Opts.RenderScript) { 2294 Opts.NativeHalfType = 1; 2295 Opts.NativeHalfArgsAndReturns = 1; 2296 } 2297 2298 // OpenCL and C++ both have bool, true, false keywords. 2299 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2300 2301 // OpenCL has half keyword 2302 Opts.Half = Opts.OpenCL; 2303 2304 // C++ has wchar_t keyword. 2305 Opts.WChar = Opts.CPlusPlus; 2306 2307 Opts.GNUKeywords = Opts.GNUMode; 2308 Opts.CXXOperatorNames = Opts.CPlusPlus; 2309 2310 Opts.AlignedAllocation = Opts.CPlusPlus17; 2311 2312 Opts.DollarIdents = !Opts.AsmPreprocessor; 2313 2314 // Enable [[]] attributes in C++11 and C2x by default. 2315 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2316 } 2317 2318 /// Attempt to parse a visibility value out of the given argument. 2319 static Visibility parseVisibility(Arg *arg, ArgList &args, 2320 DiagnosticsEngine &diags) { 2321 StringRef value = arg->getValue(); 2322 if (value == "default") { 2323 return DefaultVisibility; 2324 } else if (value == "hidden" || value == "internal") { 2325 return HiddenVisibility; 2326 } else if (value == "protected") { 2327 // FIXME: diagnose if target does not support protected visibility 2328 return ProtectedVisibility; 2329 } 2330 2331 diags.Report(diag::err_drv_invalid_value) 2332 << arg->getAsString(args) << value; 2333 return DefaultVisibility; 2334 } 2335 2336 /// Check if input file kind and language standard are compatible. 2337 static bool IsInputCompatibleWithStandard(InputKind IK, 2338 const LangStandard &S) { 2339 switch (IK.getLanguage()) { 2340 case Language::Unknown: 2341 case Language::LLVM_IR: 2342 llvm_unreachable("should not parse language flags for this input"); 2343 2344 case Language::C: 2345 case Language::ObjC: 2346 case Language::RenderScript: 2347 return S.getLanguage() == Language::C; 2348 2349 case Language::OpenCL: 2350 return S.getLanguage() == Language::OpenCL; 2351 2352 case Language::CXX: 2353 case Language::ObjCXX: 2354 return S.getLanguage() == Language::CXX; 2355 2356 case Language::CUDA: 2357 // FIXME: What -std= values should be permitted for CUDA compilations? 2358 return S.getLanguage() == Language::CUDA || 2359 S.getLanguage() == Language::CXX; 2360 2361 case Language::HIP: 2362 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2363 2364 case Language::Asm: 2365 // Accept (and ignore) all -std= values. 2366 // FIXME: The -std= value is not ignored; it affects the tokenization 2367 // and preprocessing rules if we're preprocessing this asm input. 2368 return true; 2369 } 2370 2371 llvm_unreachable("unexpected input language"); 2372 } 2373 2374 /// Get language name for given input kind. 2375 static const StringRef GetInputKindName(InputKind IK) { 2376 switch (IK.getLanguage()) { 2377 case Language::C: 2378 return "C"; 2379 case Language::ObjC: 2380 return "Objective-C"; 2381 case Language::CXX: 2382 return "C++"; 2383 case Language::ObjCXX: 2384 return "Objective-C++"; 2385 case Language::OpenCL: 2386 return "OpenCL"; 2387 case Language::CUDA: 2388 return "CUDA"; 2389 case Language::RenderScript: 2390 return "RenderScript"; 2391 case Language::HIP: 2392 return "HIP"; 2393 2394 case Language::Asm: 2395 return "Asm"; 2396 case Language::LLVM_IR: 2397 return "LLVM IR"; 2398 2399 case Language::Unknown: 2400 break; 2401 } 2402 llvm_unreachable("unknown input language"); 2403 } 2404 2405 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2406 const TargetOptions &TargetOpts, 2407 PreprocessorOptions &PPOpts, 2408 DiagnosticsEngine &Diags) { 2409 // FIXME: Cleanup per-file based stuff. 2410 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2411 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2412 LangStd = LangStandard::getLangKind(A->getValue()); 2413 if (LangStd == LangStandard::lang_unspecified) { 2414 Diags.Report(diag::err_drv_invalid_value) 2415 << A->getAsString(Args) << A->getValue(); 2416 // Report supported standards with short description. 2417 for (unsigned KindValue = 0; 2418 KindValue != LangStandard::lang_unspecified; 2419 ++KindValue) { 2420 const LangStandard &Std = LangStandard::getLangStandardForKind( 2421 static_cast<LangStandard::Kind>(KindValue)); 2422 if (IsInputCompatibleWithStandard(IK, Std)) { 2423 auto Diag = Diags.Report(diag::note_drv_use_standard); 2424 Diag << Std.getName() << Std.getDescription(); 2425 unsigned NumAliases = 0; 2426 #define LANGSTANDARD(id, name, lang, desc, features) 2427 #define LANGSTANDARD_ALIAS(id, alias) \ 2428 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2429 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2430 #include "clang/Basic/LangStandards.def" 2431 Diag << NumAliases; 2432 #define LANGSTANDARD(id, name, lang, desc, features) 2433 #define LANGSTANDARD_ALIAS(id, alias) \ 2434 if (KindValue == LangStandard::lang_##id) Diag << alias; 2435 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2436 #include "clang/Basic/LangStandards.def" 2437 } 2438 } 2439 } else { 2440 // Valid standard, check to make sure language and standard are 2441 // compatible. 2442 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2443 if (!IsInputCompatibleWithStandard(IK, Std)) { 2444 Diags.Report(diag::err_drv_argument_not_allowed_with) 2445 << A->getAsString(Args) << GetInputKindName(IK); 2446 } 2447 } 2448 } 2449 2450 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2451 Opts.DllExportInlines = false; 2452 2453 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2454 StringRef Name = A->getValue(); 2455 if (Name == "full" || Name == "branch") { 2456 Opts.CFProtectionBranch = 1; 2457 } 2458 } 2459 // -cl-std only applies for OpenCL language standards. 2460 // Override the -std option in this case. 2461 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2462 LangStandard::Kind OpenCLLangStd 2463 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2464 .Cases("cl", "CL", LangStandard::lang_opencl10) 2465 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2466 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2467 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2468 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2469 .Default(LangStandard::lang_unspecified); 2470 2471 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2472 Diags.Report(diag::err_drv_invalid_value) 2473 << A->getAsString(Args) << A->getValue(); 2474 } 2475 else 2476 LangStd = OpenCLLangStd; 2477 } 2478 2479 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2480 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2481 2482 llvm::Triple T(TargetOpts.Triple); 2483 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2484 2485 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2486 // This option should be deprecated for CL > 1.0 because 2487 // this option was added for compatibility with OpenCL 1.0. 2488 if (Args.getLastArg(OPT_cl_strict_aliasing) 2489 && Opts.OpenCLVersion > 100) { 2490 Diags.Report(diag::warn_option_invalid_ocl_version) 2491 << Opts.getOpenCLVersionTuple().getAsString() 2492 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2493 } 2494 2495 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2496 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2497 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2498 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2499 // name, as it doesn't seem a useful distinction. 2500 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2501 Opts.GNUKeywords); 2502 2503 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2504 2505 if (Args.hasArg(OPT_fno_operator_names)) 2506 Opts.CXXOperatorNames = 0; 2507 2508 if (Args.hasArg(OPT_fcuda_is_device)) 2509 Opts.CUDAIsDevice = 1; 2510 2511 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2512 Opts.CUDAAllowVariadicFunctions = 1; 2513 2514 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2515 Opts.CUDAHostDeviceConstexpr = 0; 2516 2517 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2518 Opts.CUDADeviceApproxTranscendentals = 1; 2519 2520 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2521 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2522 2523 if (Opts.ObjC) { 2524 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2525 StringRef value = arg->getValue(); 2526 if (Opts.ObjCRuntime.tryParse(value)) 2527 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2528 } 2529 2530 if (Args.hasArg(OPT_fobjc_gc_only)) 2531 Opts.setGC(LangOptions::GCOnly); 2532 else if (Args.hasArg(OPT_fobjc_gc)) 2533 Opts.setGC(LangOptions::HybridGC); 2534 else if (Args.hasArg(OPT_fobjc_arc)) { 2535 Opts.ObjCAutoRefCount = 1; 2536 if (!Opts.ObjCRuntime.allowsARC()) 2537 Diags.Report(diag::err_arc_unsupported_on_runtime); 2538 } 2539 2540 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2541 // whether the feature is actually enabled. This is predominantly 2542 // determined by -fobjc-runtime, but we allow it to be overridden 2543 // from the command line for testing purposes. 2544 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2545 Opts.ObjCWeakRuntime = 1; 2546 else 2547 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2548 2549 // ObjCWeak determines whether __weak is actually enabled. 2550 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2551 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2552 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2553 assert(!Opts.ObjCWeak); 2554 } else if (Opts.getGC() != LangOptions::NonGC) { 2555 Diags.Report(diag::err_objc_weak_with_gc); 2556 } else if (!Opts.ObjCWeakRuntime) { 2557 Diags.Report(diag::err_objc_weak_unsupported); 2558 } else { 2559 Opts.ObjCWeak = 1; 2560 } 2561 } else if (Opts.ObjCAutoRefCount) { 2562 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2563 } 2564 2565 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2566 Opts.ObjCInferRelatedResultType = 0; 2567 2568 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2569 Opts.ObjCSubscriptingLegacyRuntime = 2570 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2571 } 2572 2573 if (Args.hasArg(OPT_fgnu89_inline)) { 2574 if (Opts.CPlusPlus) 2575 Diags.Report(diag::err_drv_argument_not_allowed_with) 2576 << "-fgnu89-inline" << GetInputKindName(IK); 2577 else 2578 Opts.GNUInline = 1; 2579 } 2580 2581 if (Args.hasArg(OPT_fapple_kext)) { 2582 if (!Opts.CPlusPlus) 2583 Diags.Report(diag::warn_c_kext); 2584 else 2585 Opts.AppleKext = 1; 2586 } 2587 2588 if (Args.hasArg(OPT_print_ivar_layout)) 2589 Opts.ObjCGCBitmapPrint = 1; 2590 2591 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2592 Opts.NoConstantCFStrings = 1; 2593 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2594 Opts.CFRuntime = 2595 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2596 .Cases("unspecified", "standalone", "objc", 2597 LangOptions::CoreFoundationABI::ObjectiveC) 2598 .Cases("swift", "swift-5.0", 2599 LangOptions::CoreFoundationABI::Swift5_0) 2600 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2601 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2602 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2603 2604 if (Args.hasArg(OPT_fzvector)) 2605 Opts.ZVector = 1; 2606 2607 if (Args.hasArg(OPT_pthread)) 2608 Opts.POSIXThreads = 1; 2609 2610 // The value-visibility mode defaults to "default". 2611 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2612 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2613 } else { 2614 Opts.setValueVisibilityMode(DefaultVisibility); 2615 } 2616 2617 // The type-visibility mode defaults to the value-visibility mode. 2618 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2619 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2620 } else { 2621 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2622 } 2623 2624 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2625 Opts.InlineVisibilityHidden = 1; 2626 2627 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2628 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2629 2630 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2631 Opts.SetVisibilityForExternDecls = 1; 2632 2633 if (Args.hasArg(OPT_ftrapv)) { 2634 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2635 // Set the handler, if one is specified. 2636 Opts.OverflowHandler = 2637 Args.getLastArgValue(OPT_ftrapv_handler); 2638 } 2639 else if (Args.hasArg(OPT_fwrapv)) 2640 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2641 2642 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2643 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2644 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2645 Opts.MSCompatibilityVersion = 0; 2646 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2647 VersionTuple VT; 2648 if (VT.tryParse(A->getValue())) 2649 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2650 << A->getValue(); 2651 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2652 VT.getMinor().getValueOr(0) * 100000 + 2653 VT.getSubminor().getValueOr(0); 2654 } 2655 2656 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2657 // is specified, or -std is set to a conforming mode. 2658 // Trigraphs are disabled by default in c++1z onwards. 2659 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2660 Opts.Trigraphs = 2661 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2662 2663 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2664 OPT_fno_dollars_in_identifiers, 2665 Opts.DollarIdents); 2666 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2667 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2668 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2669 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2670 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2671 Opts.ConstStrings); 2672 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2673 using LaxKind = LangOptions::LaxVectorConversionKind; 2674 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2675 .Case("none", LaxKind::None) 2676 .Case("integer", LaxKind::Integer) 2677 .Case("all", LaxKind::All) 2678 .Default(llvm::None)) 2679 Opts.setLaxVectorConversions(*Kind); 2680 else 2681 Diags.Report(diag::err_drv_invalid_value) 2682 << A->getAsString(Args) << A->getValue(); 2683 } 2684 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2685 Opts.ThreadsafeStatics = 0; 2686 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2687 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2688 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2689 2690 // -ffixed-point 2691 Opts.FixedPoint = 2692 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2693 !Opts.CPlusPlus; 2694 Opts.PaddingOnUnsignedFixedPoint = 2695 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2696 OPT_fno_padding_on_unsigned_fixed_point, 2697 /*Default=*/false) && 2698 Opts.FixedPoint; 2699 2700 // Handle exception personalities 2701 Arg *A = Args.getLastArg( 2702 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2703 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2704 if (A) { 2705 const Option &Opt = A->getOption(); 2706 llvm::Triple T(TargetOpts.Triple); 2707 if (T.isWindowsMSVCEnvironment()) 2708 Diags.Report(diag::err_fe_invalid_exception_model) 2709 << Opt.getName() << T.str(); 2710 2711 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2712 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2713 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2714 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2715 } 2716 2717 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2718 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2719 2720 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2721 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2722 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2723 && Opts.OpenCLVersion == 200); 2724 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2725 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2726 2727 Opts.DoubleSquareBracketAttributes = 2728 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2729 OPT_fno_double_square_bracket_attributes, 2730 Opts.DoubleSquareBracketAttributes); 2731 2732 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2733 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2734 Opts.Modules = 2735 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2736 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2737 Opts.ModulesDeclUse = 2738 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2739 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2740 // enter a different module (eg, when building a header unit). 2741 Opts.ModulesLocalVisibility = 2742 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2743 Opts.CPlusPlusModules; 2744 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2745 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2746 Opts.ModulesSearchAll = Opts.Modules && 2747 !Args.hasArg(OPT_fno_modules_search_all) && 2748 Args.hasArg(OPT_fmodules_search_all); 2749 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2750 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2751 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2752 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2753 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2754 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2755 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2756 .Case("char", 1) 2757 .Case("short", 2) 2758 .Case("int", 4) 2759 .Default(0); 2760 if (Opts.WCharSize == 0) 2761 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2762 } 2763 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2764 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2765 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2766 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2767 if (!Opts.NoBuiltin) 2768 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2769 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2770 Opts.RelaxedTemplateTemplateArgs = 2771 Args.hasArg(OPT_frelaxed_template_template_args); 2772 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2773 Opts.AlignedAllocation = 2774 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2775 Opts.AlignedAllocation); 2776 Opts.AlignedAllocationUnavailable = 2777 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2778 Opts.NewAlignOverride = 2779 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2780 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2781 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2782 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2783 << A->getValue(); 2784 Opts.NewAlignOverride = 0; 2785 } 2786 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2787 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2788 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2789 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2790 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2791 Opts.InstantiationDepth = 2792 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2793 Opts.ArrowDepth = 2794 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2795 Opts.ConstexprCallDepth = 2796 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2797 Opts.ConstexprStepLimit = 2798 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2799 Opts.EnableNewConstInterp = 2800 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2801 Opts.ForceNewConstInterp = 2802 Args.hasArg(OPT_fforce_experimental_new_constant_interpreter); 2803 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2804 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2805 Opts.NumLargeByValueCopy = 2806 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2807 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2808 Opts.ObjCConstantStringClass = 2809 Args.getLastArgValue(OPT_fconstant_string_class); 2810 Opts.ObjCDefaultSynthProperties = 2811 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2812 Opts.EncodeExtendedBlockSig = 2813 Args.hasArg(OPT_fencode_extended_block_signature); 2814 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2815 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2816 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2817 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2818 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2819 ? 128 2820 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2821 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2822 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2823 Opts.ROPI = Args.hasArg(OPT_fropi); 2824 Opts.RWPI = Args.hasArg(OPT_frwpi); 2825 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2826 Opts.Static = Args.hasArg(OPT_static_define); 2827 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2828 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2829 || Args.hasArg(OPT_fdump_record_layouts); 2830 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2831 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2832 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2833 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2834 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2835 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2836 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2837 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2838 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2839 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2840 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2841 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2842 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2843 Opts.CurrentModule = Opts.ModuleName; 2844 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2845 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2846 llvm::sort(Opts.ModuleFeatures); 2847 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2848 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2849 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2850 // is enabled. 2851 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2852 | Opts.NativeHalfArgsAndReturns; 2853 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2854 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2855 2856 // __declspec is enabled by default for the PS4 by the driver, and also 2857 // enabled for Microsoft Extensions or Borland Extensions, here. 2858 // 2859 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2860 // CUDA extension. However, it is required for supporting 2861 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2862 // been rewritten in terms of something more generic, remove the Opts.CUDA 2863 // term here. 2864 Opts.DeclSpecKeyword = 2865 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2866 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2867 2868 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2869 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2870 .Case("target", LangOptions::ASMM_Target) 2871 .Case("no", LangOptions::ASMM_Off) 2872 .Case("yes", LangOptions::ASMM_On) 2873 .Default(255)) { 2874 default: 2875 Diags.Report(diag::err_drv_invalid_value) 2876 << "-faddress-space-map-mangling=" << A->getValue(); 2877 break; 2878 case LangOptions::ASMM_Target: 2879 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2880 break; 2881 case LangOptions::ASMM_On: 2882 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2883 break; 2884 case LangOptions::ASMM_Off: 2885 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2886 break; 2887 } 2888 } 2889 2890 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2891 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2892 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2893 A->getValue()) 2894 .Case("single", 2895 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2896 .Case("multiple", 2897 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2898 .Case("virtual", 2899 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2900 .Default(LangOptions::PPTMK_BestCase); 2901 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2902 Diags.Report(diag::err_drv_invalid_value) 2903 << "-fms-memptr-rep=" << A->getValue(); 2904 2905 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2906 } 2907 2908 // Check for MS default calling conventions being specified. 2909 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2910 LangOptions::DefaultCallingConvention DefaultCC = 2911 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2912 .Case("cdecl", LangOptions::DCC_CDecl) 2913 .Case("fastcall", LangOptions::DCC_FastCall) 2914 .Case("stdcall", LangOptions::DCC_StdCall) 2915 .Case("vectorcall", LangOptions::DCC_VectorCall) 2916 .Case("regcall", LangOptions::DCC_RegCall) 2917 .Default(LangOptions::DCC_None); 2918 if (DefaultCC == LangOptions::DCC_None) 2919 Diags.Report(diag::err_drv_invalid_value) 2920 << "-fdefault-calling-conv=" << A->getValue(); 2921 2922 llvm::Triple T(TargetOpts.Triple); 2923 llvm::Triple::ArchType Arch = T.getArch(); 2924 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2925 DefaultCC == LangOptions::DCC_StdCall) && 2926 Arch != llvm::Triple::x86; 2927 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2928 DefaultCC == LangOptions::DCC_RegCall) && 2929 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2930 if (emitError) 2931 Diags.Report(diag::err_drv_argument_not_allowed_with) 2932 << A->getSpelling() << T.getTriple(); 2933 else 2934 Opts.setDefaultCallingConv(DefaultCC); 2935 } 2936 2937 // -mrtd option 2938 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2939 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2940 Diags.Report(diag::err_drv_argument_not_allowed_with) 2941 << A->getSpelling() << "-fdefault-calling-conv"; 2942 else { 2943 llvm::Triple T(TargetOpts.Triple); 2944 if (T.getArch() != llvm::Triple::x86) 2945 Diags.Report(diag::err_drv_argument_not_allowed_with) 2946 << A->getSpelling() << T.getTriple(); 2947 else 2948 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2949 } 2950 } 2951 2952 // Check if -fopenmp is specified and set default version to 4.5. 2953 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 2954 // Check if -fopenmp-simd is specified. 2955 bool IsSimdSpecified = 2956 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2957 /*Default=*/false); 2958 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2959 Opts.OpenMPUseTLS = 2960 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2961 Opts.OpenMPIsDevice = 2962 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2963 bool IsTargetSpecified = 2964 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2965 2966 if (Opts.OpenMP || Opts.OpenMPSimd) { 2967 if (int Version = getLastArgIntValue( 2968 Args, OPT_fopenmp_version_EQ, 2969 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2970 Opts.OpenMP = Version; 2971 else if (IsSimdSpecified || IsTargetSpecified) 2972 Opts.OpenMP = 45; 2973 // Provide diagnostic when a given target is not expected to be an OpenMP 2974 // device or host. 2975 if (!Opts.OpenMPIsDevice) { 2976 switch (T.getArch()) { 2977 default: 2978 break; 2979 // Add unsupported host targets here: 2980 case llvm::Triple::nvptx: 2981 case llvm::Triple::nvptx64: 2982 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2983 << TargetOpts.Triple; 2984 break; 2985 } 2986 } 2987 } 2988 2989 // Set the flag to prevent the implementation from emitting device exception 2990 // handling code for those requiring so. 2991 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2992 Opts.Exceptions = 0; 2993 Opts.CXXExceptions = 0; 2994 } 2995 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2996 Opts.OpenMPCUDANumSMs = 2997 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2998 Opts.OpenMPCUDANumSMs, Diags); 2999 Opts.OpenMPCUDABlocksPerSM = 3000 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3001 Opts.OpenMPCUDABlocksPerSM, Diags); 3002 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3003 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3004 Opts.OpenMPCUDAReductionBufNum, Diags); 3005 } 3006 3007 // Prevent auto-widening the representation of loop counters during an 3008 // OpenMP collapse clause. 3009 Opts.OpenMPOptimisticCollapse = 3010 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3011 3012 // Get the OpenMP target triples if any. 3013 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3014 3015 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3016 llvm::Triple TT(A->getValue(i)); 3017 3018 if (TT.getArch() == llvm::Triple::UnknownArch || 3019 !(TT.getArch() == llvm::Triple::ppc || 3020 TT.getArch() == llvm::Triple::ppc64 || 3021 TT.getArch() == llvm::Triple::ppc64le || 3022 TT.getArch() == llvm::Triple::nvptx || 3023 TT.getArch() == llvm::Triple::nvptx64 || 3024 TT.getArch() == llvm::Triple::x86 || 3025 TT.getArch() == llvm::Triple::x86_64)) 3026 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3027 else 3028 Opts.OMPTargetTriples.push_back(TT); 3029 } 3030 } 3031 3032 // Get OpenMP host file path if any and report if a non existent file is 3033 // found 3034 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3035 Opts.OMPHostIRFile = A->getValue(); 3036 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3037 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3038 << Opts.OMPHostIRFile; 3039 } 3040 3041 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device); 3042 3043 // Set CUDA mode for OpenMP target NVPTX if specified in options 3044 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 3045 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3046 3047 // Set CUDA mode for OpenMP target NVPTX if specified in options 3048 Opts.OpenMPCUDAForceFullRuntime = 3049 Opts.OpenMPIsDevice && T.isNVPTX() && 3050 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3051 3052 // Record whether the __DEPRECATED define was requested. 3053 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3054 OPT_fno_deprecated_macro, 3055 Opts.Deprecated); 3056 3057 // FIXME: Eliminate this dependency. 3058 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3059 OptSize = getOptimizationLevelSize(Args); 3060 Opts.Optimize = Opt != 0; 3061 Opts.OptimizeSize = OptSize != 0; 3062 3063 // This is the __NO_INLINE__ define, which just depends on things like the 3064 // optimization level and -fno-inline, not actually whether the backend has 3065 // inlining enabled. 3066 Opts.NoInlineDefine = !Opts.Optimize; 3067 if (Arg *InlineArg = Args.getLastArg( 3068 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3069 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3070 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3071 Opts.NoInlineDefine = true; 3072 3073 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3074 Args.hasArg(OPT_cl_fast_relaxed_math); 3075 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3076 Args.hasArg(OPT_cl_finite_math_only) || 3077 Args.hasArg(OPT_cl_fast_relaxed_math); 3078 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3079 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3080 Args.hasArg(OPT_cl_fast_relaxed_math); 3081 3082 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3083 StringRef Val = A->getValue(); 3084 if (Val == "fast") 3085 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 3086 else if (Val == "on") 3087 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 3088 else if (Val == "off") 3089 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 3090 else 3091 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3092 } 3093 3094 Opts.RetainCommentsFromSystemHeaders = 3095 Args.hasArg(OPT_fretain_comments_from_system_headers); 3096 3097 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3098 switch (SSP) { 3099 default: 3100 Diags.Report(diag::err_drv_invalid_value) 3101 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3102 break; 3103 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3104 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3105 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3106 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3107 } 3108 3109 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3110 StringRef Val = A->getValue(); 3111 if (Val == "uninitialized") 3112 Opts.setTrivialAutoVarInit( 3113 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3114 else if (Val == "zero") 3115 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3116 else if (Val == "pattern") 3117 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3118 else 3119 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3120 } 3121 3122 // Parse -fsanitize= arguments. 3123 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3124 Diags, Opts.Sanitize); 3125 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3126 Opts.SanitizeAddressFieldPadding = 3127 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3128 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3129 3130 // -fxray-instrument 3131 Opts.XRayInstrument = 3132 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 3133 3134 // -fxray-always-emit-customevents 3135 Opts.XRayAlwaysEmitCustomEvents = 3136 Args.hasFlag(OPT_fxray_always_emit_customevents, 3137 OPT_fnoxray_always_emit_customevents, false); 3138 3139 // -fxray-always-emit-typedevents 3140 Opts.XRayAlwaysEmitTypedEvents = 3141 Args.hasFlag(OPT_fxray_always_emit_typedevents, 3142 OPT_fnoxray_always_emit_customevents, false); 3143 3144 // -fxray-{always,never}-instrument= filenames. 3145 Opts.XRayAlwaysInstrumentFiles = 3146 Args.getAllArgValues(OPT_fxray_always_instrument); 3147 Opts.XRayNeverInstrumentFiles = 3148 Args.getAllArgValues(OPT_fxray_never_instrument); 3149 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3150 3151 // -fforce-emit-vtables 3152 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3153 3154 // -fallow-editor-placeholders 3155 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3156 3157 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3158 3159 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3160 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3161 3162 StringRef Ver = A->getValue(); 3163 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3164 unsigned Major, Minor = 0; 3165 3166 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3167 // y or y.0 (4 <= y <= current version). 3168 if (!VerParts.first.startswith("0") && 3169 !VerParts.first.getAsInteger(10, Major) && 3170 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3171 (Major == 3 ? VerParts.second.size() == 1 && 3172 !VerParts.second.getAsInteger(10, Minor) 3173 : VerParts.first.size() == Ver.size() || 3174 VerParts.second == "0")) { 3175 // Got a valid version number. 3176 if (Major == 3 && Minor <= 8) 3177 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3178 else if (Major <= 4) 3179 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3180 else if (Major <= 6) 3181 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3182 else if (Major <= 7) 3183 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3184 else if (Major <= 9) 3185 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3186 } else if (Ver != "latest") { 3187 Diags.Report(diag::err_drv_invalid_value) 3188 << A->getAsString(Args) << A->getValue(); 3189 } 3190 } 3191 3192 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3193 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3194 } 3195 3196 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3197 switch (Action) { 3198 case frontend::ASTDeclList: 3199 case frontend::ASTDump: 3200 case frontend::ASTPrint: 3201 case frontend::ASTView: 3202 case frontend::EmitAssembly: 3203 case frontend::EmitBC: 3204 case frontend::EmitHTML: 3205 case frontend::EmitLLVM: 3206 case frontend::EmitLLVMOnly: 3207 case frontend::EmitCodeGenOnly: 3208 case frontend::EmitObj: 3209 case frontend::FixIt: 3210 case frontend::GenerateModule: 3211 case frontend::GenerateModuleInterface: 3212 case frontend::GenerateHeaderModule: 3213 case frontend::GeneratePCH: 3214 case frontend::GenerateInterfaceIfsExpV1: 3215 case frontend::ParseSyntaxOnly: 3216 case frontend::ModuleFileInfo: 3217 case frontend::VerifyPCH: 3218 case frontend::PluginAction: 3219 case frontend::RewriteObjC: 3220 case frontend::RewriteTest: 3221 case frontend::RunAnalysis: 3222 case frontend::TemplightDump: 3223 case frontend::MigrateSource: 3224 return false; 3225 3226 case frontend::DumpCompilerOptions: 3227 case frontend::DumpRawTokens: 3228 case frontend::DumpTokens: 3229 case frontend::InitOnly: 3230 case frontend::PrintPreamble: 3231 case frontend::PrintPreprocessedInput: 3232 case frontend::RewriteMacros: 3233 case frontend::RunPreprocessorOnly: 3234 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3235 return true; 3236 } 3237 llvm_unreachable("invalid frontend action"); 3238 } 3239 3240 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3241 DiagnosticsEngine &Diags, 3242 frontend::ActionKind Action) { 3243 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3244 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3245 Args.hasArg(OPT_pch_through_hdrstop_use); 3246 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3247 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3248 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3249 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3250 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3251 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3252 3253 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3254 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3255 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3256 3257 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3258 StringRef Value(A->getValue()); 3259 size_t Comma = Value.find(','); 3260 unsigned Bytes = 0; 3261 unsigned EndOfLine = 0; 3262 3263 if (Comma == StringRef::npos || 3264 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3265 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3266 Diags.Report(diag::err_drv_preamble_format); 3267 else { 3268 Opts.PrecompiledPreambleBytes.first = Bytes; 3269 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3270 } 3271 } 3272 3273 // Add the __CET__ macro if a CFProtection option is set. 3274 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3275 StringRef Name = A->getValue(); 3276 if (Name == "branch") 3277 Opts.addMacroDef("__CET__=1"); 3278 else if (Name == "return") 3279 Opts.addMacroDef("__CET__=2"); 3280 else if (Name == "full") 3281 Opts.addMacroDef("__CET__=3"); 3282 } 3283 3284 // Add macros from the command line. 3285 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3286 if (A->getOption().matches(OPT_D)) 3287 Opts.addMacroDef(A->getValue()); 3288 else 3289 Opts.addMacroUndef(A->getValue()); 3290 } 3291 3292 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3293 3294 // Add the ordered list of -includes. 3295 for (const auto *A : Args.filtered(OPT_include)) 3296 Opts.Includes.emplace_back(A->getValue()); 3297 3298 for (const auto *A : Args.filtered(OPT_chain_include)) 3299 Opts.ChainedIncludes.emplace_back(A->getValue()); 3300 3301 for (const auto *A : Args.filtered(OPT_remap_file)) { 3302 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3303 3304 if (Split.second.empty()) { 3305 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3306 continue; 3307 } 3308 3309 Opts.addRemappedFile(Split.first, Split.second); 3310 } 3311 3312 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3313 StringRef Name = A->getValue(); 3314 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3315 .Case("libc++", ARCXX_libcxx) 3316 .Case("libstdc++", ARCXX_libstdcxx) 3317 .Case("none", ARCXX_nolib) 3318 .Default(~0U); 3319 if (Library == ~0U) 3320 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3321 else 3322 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3323 } 3324 3325 // Always avoid lexing editor placeholders when we're just running the 3326 // preprocessor as we never want to emit the 3327 // "editor placeholder in source file" error in PP only mode. 3328 if (isStrictlyPreprocessorAction(Action)) 3329 Opts.LexEditorPlaceholders = false; 3330 } 3331 3332 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3333 ArgList &Args, 3334 frontend::ActionKind Action) { 3335 if (isStrictlyPreprocessorAction(Action)) 3336 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3337 else 3338 Opts.ShowCPP = 0; 3339 3340 Opts.ShowComments = Args.hasArg(OPT_C); 3341 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3342 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3343 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3344 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3345 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3346 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3347 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3348 } 3349 3350 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3351 DiagnosticsEngine &Diags) { 3352 Opts.CodeModel = getCodeModel(Args, Diags); 3353 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3354 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3355 StringRef Value = A->getValue(); 3356 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3357 .Case("default", llvm::EABI::Default) 3358 .Case("4", llvm::EABI::EABI4) 3359 .Case("5", llvm::EABI::EABI5) 3360 .Case("gnu", llvm::EABI::GNU) 3361 .Default(llvm::EABI::Unknown); 3362 if (EABIVersion == llvm::EABI::Unknown) 3363 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3364 << Value; 3365 else 3366 Opts.EABIVersion = EABIVersion; 3367 } 3368 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3369 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3370 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3371 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3372 Opts.Triple = Args.getLastArgValue(OPT_triple); 3373 // Use the default target triple if unspecified. 3374 if (Opts.Triple.empty()) 3375 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3376 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3377 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3378 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3379 Opts.NVPTXUseShortPointers = Args.hasFlag( 3380 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3381 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3382 llvm::VersionTuple Version; 3383 if (Version.tryParse(A->getValue())) 3384 Diags.Report(diag::err_drv_invalid_value) 3385 << A->getAsString(Args) << A->getValue(); 3386 else 3387 Opts.SDKVersion = Version; 3388 } 3389 } 3390 3391 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3392 ArrayRef<const char *> CommandLineArgs, 3393 DiagnosticsEngine &Diags) { 3394 bool Success = true; 3395 3396 // Parse the arguments. 3397 const OptTable &Opts = getDriverOptTable(); 3398 const unsigned IncludedFlagsBitmask = options::CC1Option; 3399 unsigned MissingArgIndex, MissingArgCount; 3400 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3401 MissingArgCount, IncludedFlagsBitmask); 3402 LangOptions &LangOpts = *Res.getLangOpts(); 3403 3404 // Check for missing argument error. 3405 if (MissingArgCount) { 3406 Diags.Report(diag::err_drv_missing_argument) 3407 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3408 Success = false; 3409 } 3410 3411 // Issue errors on unknown arguments. 3412 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3413 auto ArgString = A->getAsString(Args); 3414 std::string Nearest; 3415 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3416 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3417 else 3418 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3419 << ArgString << Nearest; 3420 Success = false; 3421 } 3422 3423 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3424 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3425 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3426 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3427 Res.getDependencyOutputOpts().Targets.empty()) { 3428 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3429 Success = false; 3430 } 3431 Success &= 3432 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3433 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3434 ParseCommentArgs(LangOpts.CommentOpts, Args); 3435 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3436 // FIXME: We shouldn't have to pass the DashX option around here 3437 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3438 LangOpts.IsHeaderFile); 3439 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3440 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3441 Res.getTargetOpts(), Res.getFrontendOpts()); 3442 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3443 Res.getFileSystemOpts().WorkingDir); 3444 llvm::Triple T(Res.getTargetOpts().Triple); 3445 if (DashX.getFormat() == InputKind::Precompiled || 3446 DashX.getLanguage() == Language::LLVM_IR) { 3447 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3448 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3449 // what the input type is. 3450 if (Args.hasArg(OPT_fobjc_arc)) 3451 LangOpts.ObjCAutoRefCount = 1; 3452 // PIClevel and PIELevel are needed during code generation and this should be 3453 // set regardless of the input type. 3454 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3455 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3456 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3457 Diags, LangOpts.Sanitize); 3458 } else { 3459 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3460 // FIXME: Should we really be calling this for an Language::Asm input? 3461 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3462 Res.getPreprocessorOpts(), Diags); 3463 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3464 LangOpts.ObjCExceptions = 1; 3465 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3466 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3467 // preprocessed input as we don't expect it to be used with -std=libc++ 3468 // anyway. 3469 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3470 } 3471 } 3472 3473 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3474 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3475 3476 LangOpts.FunctionAlignment = 3477 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3478 3479 if (LangOpts.CUDA) { 3480 // During CUDA device-side compilation, the aux triple is the 3481 // triple used for host compilation. 3482 if (LangOpts.CUDAIsDevice) 3483 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3484 } 3485 3486 // Set the triple of the host for OpenMP device compile. 3487 if (LangOpts.OpenMPIsDevice) 3488 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3489 3490 // FIXME: Override value name discarding when asan or msan is used because the 3491 // backend passes depend on the name of the alloca in order to print out 3492 // names. 3493 Res.getCodeGenOpts().DiscardValueNames &= 3494 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3495 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3496 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3497 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3498 3499 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3500 Res.getFrontendOpts().ProgramAction); 3501 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3502 Res.getFrontendOpts().ProgramAction); 3503 3504 // Turn on -Wspir-compat for SPIR target. 3505 if (T.isSPIR()) 3506 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3507 3508 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3509 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3510 !Res.getLangOpts()->Sanitize.empty()) { 3511 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3512 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3513 } 3514 return Success; 3515 } 3516 3517 std::string CompilerInvocation::getModuleHash() const { 3518 // Note: For QoI reasons, the things we use as a hash here should all be 3519 // dumped via the -module-info flag. 3520 using llvm::hash_code; 3521 using llvm::hash_value; 3522 using llvm::hash_combine; 3523 3524 // Start the signature with the compiler version. 3525 // FIXME: We'd rather use something more cryptographically sound than 3526 // CityHash, but this will do for now. 3527 hash_code code = hash_value(getClangFullRepositoryVersion()); 3528 3529 // Extend the signature with the language options 3530 #define LANGOPT(Name, Bits, Default, Description) \ 3531 code = hash_combine(code, LangOpts->Name); 3532 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3533 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3534 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3535 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3536 #include "clang/Basic/LangOptions.def" 3537 3538 for (StringRef Feature : LangOpts->ModuleFeatures) 3539 code = hash_combine(code, Feature); 3540 3541 // Extend the signature with the target options. 3542 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3543 TargetOpts->ABI); 3544 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3545 code = hash_combine(code, FeatureAsWritten); 3546 3547 // Extend the signature with preprocessor options. 3548 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3549 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3550 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3551 3552 for (const auto &I : getPreprocessorOpts().Macros) { 3553 // If we're supposed to ignore this macro for the purposes of modules, 3554 // don't put it into the hash. 3555 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3556 // Check whether we're ignoring this macro. 3557 StringRef MacroDef = I.first; 3558 if (hsOpts.ModulesIgnoreMacros.count( 3559 llvm::CachedHashString(MacroDef.split('=').first))) 3560 continue; 3561 } 3562 3563 code = hash_combine(code, I.first, I.second); 3564 } 3565 3566 // Extend the signature with the sysroot and other header search options. 3567 code = hash_combine(code, hsOpts.Sysroot, 3568 hsOpts.ModuleFormat, 3569 hsOpts.UseDebugInfo, 3570 hsOpts.UseBuiltinIncludes, 3571 hsOpts.UseStandardSystemIncludes, 3572 hsOpts.UseStandardCXXIncludes, 3573 hsOpts.UseLibcxx, 3574 hsOpts.ModulesValidateDiagnosticOptions); 3575 code = hash_combine(code, hsOpts.ResourceDir); 3576 3577 // Extend the signature with the user build path. 3578 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3579 3580 // Extend the signature with the module file extensions. 3581 const FrontendOptions &frontendOpts = getFrontendOpts(); 3582 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3583 code = ext->hashExtension(code); 3584 } 3585 3586 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3587 // affects the debug info in the PCM. 3588 if (getCodeGenOpts().DebugTypeExtRefs) 3589 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3590 code = hash_combine(code, KeyValue.first, KeyValue.second); 3591 3592 // Extend the signature with the enabled sanitizers, if at least one is 3593 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3594 SanitizerSet SanHash = LangOpts->Sanitize; 3595 SanHash.clear(getPPTransparentSanitizers()); 3596 if (!SanHash.empty()) 3597 code = hash_combine(code, SanHash.Mask); 3598 3599 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3600 } 3601 3602 template<typename IntTy> 3603 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3604 IntTy Default, 3605 DiagnosticsEngine *Diags) { 3606 IntTy Res = Default; 3607 if (Arg *A = Args.getLastArg(Id)) { 3608 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3609 if (Diags) 3610 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3611 << A->getValue(); 3612 } 3613 } 3614 return Res; 3615 } 3616 3617 namespace clang { 3618 3619 // Declared in clang/Frontend/Utils.h. 3620 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3621 DiagnosticsEngine *Diags) { 3622 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3623 } 3624 3625 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3626 uint64_t Default, 3627 DiagnosticsEngine *Diags) { 3628 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3629 } 3630 3631 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3632 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3633 DiagnosticsEngine &Diags) { 3634 return createVFSFromCompilerInvocation(CI, Diags, 3635 llvm::vfs::getRealFileSystem()); 3636 } 3637 3638 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3639 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3640 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3641 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3642 return BaseFS; 3643 3644 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3645 // earlier vfs files are on the bottom 3646 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3647 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3648 Result->getBufferForFile(File); 3649 if (!Buffer) { 3650 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3651 continue; 3652 } 3653 3654 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3655 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3656 /*DiagContext*/ nullptr, Result); 3657 if (!FS) { 3658 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3659 continue; 3660 } 3661 3662 Result = FS; 3663 } 3664 return Result; 3665 } 3666 3667 } // namespace clang 3668