1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/Utils.h" 41 #include "clang/Lex/HeaderSearchOptions.h" 42 #include "clang/Lex/PreprocessorOptions.h" 43 #include "clang/Sema/CodeCompleteOptions.h" 44 #include "clang/Serialization/ASTBitCodes.h" 45 #include "clang/Serialization/ModuleFileExtension.h" 46 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 47 #include "llvm/ADT/APInt.h" 48 #include "llvm/ADT/ArrayRef.h" 49 #include "llvm/ADT/CachedHashString.h" 50 #include "llvm/ADT/FloatingPointMode.h" 51 #include "llvm/ADT/Hashing.h" 52 #include "llvm/ADT/None.h" 53 #include "llvm/ADT/Optional.h" 54 #include "llvm/ADT/SmallString.h" 55 #include "llvm/ADT/SmallVector.h" 56 #include "llvm/ADT/StringRef.h" 57 #include "llvm/ADT/StringSwitch.h" 58 #include "llvm/ADT/Triple.h" 59 #include "llvm/ADT/Twine.h" 60 #include "llvm/IR/DebugInfoMetadata.h" 61 #include "llvm/Linker/Linker.h" 62 #include "llvm/MC/MCTargetOptions.h" 63 #include "llvm/Option/Arg.h" 64 #include "llvm/Option/ArgList.h" 65 #include "llvm/Option/OptSpecifier.h" 66 #include "llvm/Option/OptTable.h" 67 #include "llvm/Option/Option.h" 68 #include "llvm/ProfileData/InstrProfReader.h" 69 #include "llvm/Support/CodeGen.h" 70 #include "llvm/Support/Compiler.h" 71 #include "llvm/Support/Error.h" 72 #include "llvm/Support/ErrorHandling.h" 73 #include "llvm/Support/ErrorOr.h" 74 #include "llvm/Support/FileSystem.h" 75 #include "llvm/Support/Host.h" 76 #include "llvm/Support/MathExtras.h" 77 #include "llvm/Support/MemoryBuffer.h" 78 #include "llvm/Support/Path.h" 79 #include "llvm/Support/Process.h" 80 #include "llvm/Support/Regex.h" 81 #include "llvm/Support/VersionTuple.h" 82 #include "llvm/Support/VirtualFileSystem.h" 83 #include "llvm/Support/raw_ostream.h" 84 #include "llvm/Target/TargetOptions.h" 85 #include <algorithm> 86 #include <atomic> 87 #include <cassert> 88 #include <cstddef> 89 #include <cstring> 90 #include <memory> 91 #include <string> 92 #include <tuple> 93 #include <utility> 94 #include <vector> 95 96 using namespace clang; 97 using namespace driver; 98 using namespace options; 99 using namespace llvm::opt; 100 101 //===----------------------------------------------------------------------===// 102 // Initialization. 103 //===----------------------------------------------------------------------===// 104 105 CompilerInvocationBase::CompilerInvocationBase() 106 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 107 DiagnosticOpts(new DiagnosticOptions()), 108 HeaderSearchOpts(new HeaderSearchOptions()), 109 PreprocessorOpts(new PreprocessorOptions()) {} 110 111 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 112 : LangOpts(new LangOptions(*X.getLangOpts())), 113 TargetOpts(new TargetOptions(X.getTargetOpts())), 114 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 115 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 116 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 117 118 CompilerInvocationBase::~CompilerInvocationBase() = default; 119 120 //===----------------------------------------------------------------------===// 121 // Normalizers 122 //===----------------------------------------------------------------------===// 123 124 #define SIMPLE_ENUM_VALUE_TABLE 125 #include "clang/Driver/Options.inc" 126 #undef SIMPLE_ENUM_VALUE_TABLE 127 128 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 129 unsigned TableIndex, 130 const ArgList &Args, 131 DiagnosticsEngine &Diags) { 132 if (Args.hasArg(Opt)) 133 return true; 134 return None; 135 } 136 137 template <typename T, T Value> 138 static llvm::Optional<T> 139 normalizeFlagToValue(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 140 DiagnosticsEngine &Diags) { 141 if (Args.hasArg(Opt)) 142 return Value; 143 return None; 144 } 145 146 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 147 unsigned TableIndex, 148 const ArgList &Args, 149 DiagnosticsEngine &Diags) { 150 assert(TableIndex < SimpleEnumValueTablesSize); 151 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 152 153 auto *Arg = Args.getLastArg(Opt); 154 if (!Arg) 155 return None; 156 157 StringRef ArgValue = Arg->getValue(); 158 for (int I = 0, E = Table.Size; I != E; ++I) 159 if (ArgValue == Table.Table[I].Name) 160 return Table.Table[I].Value; 161 162 Diags.Report(diag::err_drv_invalid_value) 163 << Arg->getAsString(Args) << ArgValue; 164 return None; 165 } 166 167 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 168 CompilerInvocation::StringAllocator SA, 169 unsigned TableIndex, unsigned Value) { 170 assert(TableIndex < SimpleEnumValueTablesSize); 171 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 172 for (int I = 0, E = Table.Size; I != E; ++I) { 173 if (Value == Table.Table[I].Value) { 174 Args.push_back(Table.Table[I].Name); 175 return; 176 } 177 } 178 179 llvm_unreachable("The simple enum value was not correctly defined in " 180 "the tablegen option description"); 181 } 182 183 static void denormalizeString(SmallVectorImpl<const char *> &Args, 184 CompilerInvocation::StringAllocator SA, 185 unsigned TableIndex, const std::string &Value) { 186 Args.push_back(SA(Value)); 187 } 188 189 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 190 const ArgList &Args, 191 DiagnosticsEngine &Diags) { 192 auto *Arg = Args.getLastArg(Opt); 193 if (!Arg) 194 return None; 195 return llvm::Triple::normalize(Arg->getValue()); 196 } 197 198 template <typename T, typename U> 199 static T mergeForwardValue(T KeyPath, U Value) { 200 return Value; 201 } 202 203 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 204 return KeyPath | Value; 205 } 206 207 template <typename T> static T extractForwardValue(T KeyPath) { 208 return KeyPath; 209 } 210 211 template <typename T, typename U, U Value> 212 static T extractMaskValue(T KeyPath) { 213 return KeyPath & Value; 214 } 215 216 //===----------------------------------------------------------------------===// 217 // Deserialization (from args) 218 //===----------------------------------------------------------------------===// 219 220 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 221 DiagnosticsEngine &Diags) { 222 unsigned DefaultOpt = llvm::CodeGenOpt::None; 223 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 224 DefaultOpt = llvm::CodeGenOpt::Default; 225 226 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 227 if (A->getOption().matches(options::OPT_O0)) 228 return llvm::CodeGenOpt::None; 229 230 if (A->getOption().matches(options::OPT_Ofast)) 231 return llvm::CodeGenOpt::Aggressive; 232 233 assert(A->getOption().matches(options::OPT_O)); 234 235 StringRef S(A->getValue()); 236 if (S == "s" || S == "z") 237 return llvm::CodeGenOpt::Default; 238 239 if (S == "g") 240 return llvm::CodeGenOpt::Less; 241 242 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 243 } 244 245 return DefaultOpt; 246 } 247 248 static unsigned getOptimizationLevelSize(ArgList &Args) { 249 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 250 if (A->getOption().matches(options::OPT_O)) { 251 switch (A->getValue()[0]) { 252 default: 253 return 0; 254 case 's': 255 return 1; 256 case 'z': 257 return 2; 258 } 259 } 260 } 261 return 0; 262 } 263 264 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 265 OptSpecifier GroupWithValue, 266 std::vector<std::string> &Diagnostics) { 267 for (auto *A : Args.filtered(Group)) { 268 if (A->getOption().getKind() == Option::FlagClass) { 269 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 270 // its name (minus the "W" or "R" at the beginning) to the warning list. 271 Diagnostics.push_back( 272 std::string(A->getOption().getName().drop_front(1))); 273 } else if (A->getOption().matches(GroupWithValue)) { 274 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 275 Diagnostics.push_back( 276 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 277 } else { 278 // Otherwise, add its value (for OPT_W_Joined and similar). 279 for (const auto *Arg : A->getValues()) 280 Diagnostics.emplace_back(Arg); 281 } 282 } 283 } 284 285 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 286 // it won't verify the input. 287 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 288 DiagnosticsEngine *Diags); 289 290 static void getAllNoBuiltinFuncValues(ArgList &Args, 291 std::vector<std::string> &Funcs) { 292 SmallVector<const char *, 8> Values; 293 for (const auto &Arg : Args) { 294 const Option &O = Arg->getOption(); 295 if (O.matches(options::OPT_fno_builtin_)) { 296 const char *FuncName = Arg->getValue(); 297 if (Builtin::Context::isBuiltinFunc(FuncName)) 298 Values.push_back(FuncName); 299 } 300 } 301 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 302 } 303 304 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 305 DiagnosticsEngine &Diags) { 306 bool Success = true; 307 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 308 StringRef Name = A->getValue(); 309 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 310 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 311 .Case(CMDFLAG, NAME##Model) 312 #include "clang/StaticAnalyzer/Core/Analyses.def" 313 .Default(NumStores); 314 if (Value == NumStores) { 315 Diags.Report(diag::err_drv_invalid_value) 316 << A->getAsString(Args) << Name; 317 Success = false; 318 } else { 319 Opts.AnalysisStoreOpt = Value; 320 } 321 } 322 323 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 324 StringRef Name = A->getValue(); 325 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 326 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 327 .Case(CMDFLAG, NAME##Model) 328 #include "clang/StaticAnalyzer/Core/Analyses.def" 329 .Default(NumConstraints); 330 if (Value == NumConstraints) { 331 Diags.Report(diag::err_drv_invalid_value) 332 << A->getAsString(Args) << Name; 333 Success = false; 334 } else { 335 Opts.AnalysisConstraintsOpt = Value; 336 } 337 } 338 339 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 340 StringRef Name = A->getValue(); 341 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 342 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 343 .Case(CMDFLAG, PD_##NAME) 344 #include "clang/StaticAnalyzer/Core/Analyses.def" 345 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 346 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 347 Diags.Report(diag::err_drv_invalid_value) 348 << A->getAsString(Args) << Name; 349 Success = false; 350 } else { 351 Opts.AnalysisDiagOpt = Value; 352 } 353 } 354 355 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 356 StringRef Name = A->getValue(); 357 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 358 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 359 .Case(CMDFLAG, NAME) 360 #include "clang/StaticAnalyzer/Core/Analyses.def" 361 .Default(NumPurgeModes); 362 if (Value == NumPurgeModes) { 363 Diags.Report(diag::err_drv_invalid_value) 364 << A->getAsString(Args) << Name; 365 Success = false; 366 } else { 367 Opts.AnalysisPurgeOpt = Value; 368 } 369 } 370 371 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 372 StringRef Name = A->getValue(); 373 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 374 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 375 .Case(CMDFLAG, NAME) 376 #include "clang/StaticAnalyzer/Core/Analyses.def" 377 .Default(NumInliningModes); 378 if (Value == NumInliningModes) { 379 Diags.Report(diag::err_drv_invalid_value) 380 << A->getAsString(Args) << Name; 381 Success = false; 382 } else { 383 Opts.InliningMode = Value; 384 } 385 } 386 387 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 388 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 389 Opts.ShowCheckerHelpDeveloper = 390 Args.hasArg(OPT_analyzer_checker_help_developer); 391 392 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 393 Opts.ShowCheckerOptionAlphaList = 394 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 395 Opts.ShowCheckerOptionDeveloperList = 396 Args.hasArg(OPT_analyzer_checker_option_help_developer); 397 398 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 399 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 400 Opts.ShouldEmitErrorsOnInvalidConfigValue = 401 /* negated */!llvm::StringSwitch<bool>( 402 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 403 .Case("true", true) 404 .Case("false", false) 405 .Default(false); 406 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 407 408 Opts.visualizeExplodedGraphWithGraphViz = 409 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 410 Opts.DumpExplodedGraphTo = 411 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 412 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 413 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 414 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 415 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 416 Opts.AnalyzeNestedBlocks = 417 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 418 Opts.AnalyzeSpecificFunction = 419 std::string(Args.getLastArgValue(OPT_analyze_function)); 420 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 421 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 422 Opts.maxBlockVisitOnPath = 423 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 424 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 425 Opts.InlineMaxStackDepth = 426 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 427 Opts.InlineMaxStackDepth, Diags); 428 429 Opts.CheckersAndPackages.clear(); 430 for (const Arg *A : 431 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 432 A->claim(); 433 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 434 // We can have a list of comma separated checker names, e.g: 435 // '-analyzer-checker=cocoa,unix' 436 StringRef CheckerAndPackageList = A->getValue(); 437 SmallVector<StringRef, 16> CheckersAndPackages; 438 CheckerAndPackageList.split(CheckersAndPackages, ","); 439 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 440 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 441 IsEnabled); 442 } 443 444 // Go through the analyzer configuration options. 445 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 446 447 // We can have a list of comma separated config names, e.g: 448 // '-analyzer-config key1=val1,key2=val2' 449 StringRef configList = A->getValue(); 450 SmallVector<StringRef, 4> configVals; 451 configList.split(configVals, ","); 452 for (const auto &configVal : configVals) { 453 StringRef key, val; 454 std::tie(key, val) = configVal.split("="); 455 if (val.empty()) { 456 Diags.Report(SourceLocation(), 457 diag::err_analyzer_config_no_value) << configVal; 458 Success = false; 459 break; 460 } 461 if (val.find('=') != StringRef::npos) { 462 Diags.Report(SourceLocation(), 463 diag::err_analyzer_config_multiple_values) 464 << configVal; 465 Success = false; 466 break; 467 } 468 469 // TODO: Check checker options too, possibly in CheckerRegistry. 470 // Leave unknown non-checker configs unclaimed. 471 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 472 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 473 Diags.Report(diag::err_analyzer_config_unknown) << key; 474 continue; 475 } 476 477 A->claim(); 478 Opts.Config[key] = std::string(val); 479 } 480 } 481 482 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 483 parseAnalyzerConfigs(Opts, &Diags); 484 else 485 parseAnalyzerConfigs(Opts, nullptr); 486 487 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 488 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 489 if (i != 0) 490 os << " "; 491 os << Args.getArgString(i); 492 } 493 os.flush(); 494 495 return Success; 496 } 497 498 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 499 StringRef OptionName, StringRef DefaultVal) { 500 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 501 } 502 503 static void initOption(AnalyzerOptions::ConfigTable &Config, 504 DiagnosticsEngine *Diags, 505 StringRef &OptionField, StringRef Name, 506 StringRef DefaultVal) { 507 // String options may be known to invalid (e.g. if the expected string is a 508 // file name, but the file does not exist), those will have to be checked in 509 // parseConfigs. 510 OptionField = getStringOption(Config, Name, DefaultVal); 511 } 512 513 static void initOption(AnalyzerOptions::ConfigTable &Config, 514 DiagnosticsEngine *Diags, 515 bool &OptionField, StringRef Name, bool DefaultVal) { 516 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 517 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 518 .Case("true", true) 519 .Case("false", false) 520 .Default(None); 521 522 if (!PossiblyInvalidVal) { 523 if (Diags) 524 Diags->Report(diag::err_analyzer_config_invalid_input) 525 << Name << "a boolean"; 526 else 527 OptionField = DefaultVal; 528 } else 529 OptionField = PossiblyInvalidVal.getValue(); 530 } 531 532 static void initOption(AnalyzerOptions::ConfigTable &Config, 533 DiagnosticsEngine *Diags, 534 unsigned &OptionField, StringRef Name, 535 unsigned DefaultVal) { 536 537 OptionField = DefaultVal; 538 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 539 .getAsInteger(0, OptionField); 540 if (Diags && HasFailed) 541 Diags->Report(diag::err_analyzer_config_invalid_input) 542 << Name << "an unsigned"; 543 } 544 545 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 546 DiagnosticsEngine *Diags) { 547 // TODO: There's no need to store the entire configtable, it'd be plenty 548 // enough tostore checker options. 549 550 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 551 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 552 553 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 554 SHALLOW_VAL, DEEP_VAL) \ 555 switch (AnOpts.getUserMode()) { \ 556 case UMK_Shallow: \ 557 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 558 break; \ 559 case UMK_Deep: \ 560 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 561 break; \ 562 } \ 563 564 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 565 #undef ANALYZER_OPTION 566 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 567 568 // At this point, AnalyzerOptions is configured. Let's validate some options. 569 570 // FIXME: Here we try to validate the silenced checkers or packages are valid. 571 // The current approach only validates the registered checkers which does not 572 // contain the runtime enabled checkers and optimally we would validate both. 573 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 574 std::vector<StringRef> Checkers = 575 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 576 std::vector<StringRef> Packages = 577 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 578 579 SmallVector<StringRef, 16> CheckersAndPackages; 580 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 581 582 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 583 if (Diags) { 584 bool IsChecker = CheckerOrPackage.contains('.'); 585 bool IsValidName = 586 IsChecker 587 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 588 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 589 590 if (!IsValidName) 591 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 592 << CheckerOrPackage; 593 } 594 595 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 596 } 597 } 598 599 if (!Diags) 600 return; 601 602 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 603 Diags->Report(diag::err_analyzer_config_invalid_input) 604 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 605 606 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 607 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 608 << "a filename"; 609 610 if (!AnOpts.ModelPath.empty() && 611 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 612 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 613 << "a filename"; 614 } 615 616 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 617 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 618 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 619 return true; 620 } 621 622 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 623 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 624 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 625 } 626 627 /// Create a new Regex instance out of the string value in \p RpassArg. 628 /// It returns a pointer to the newly generated Regex instance. 629 static std::shared_ptr<llvm::Regex> 630 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 631 Arg *RpassArg) { 632 StringRef Val = RpassArg->getValue(); 633 std::string RegexError; 634 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 635 if (!Pattern->isValid(RegexError)) { 636 Diags.Report(diag::err_drv_optimization_remark_pattern) 637 << RegexError << RpassArg->getAsString(Args); 638 Pattern.reset(); 639 } 640 return Pattern; 641 } 642 643 static bool parseDiagnosticLevelMask(StringRef FlagName, 644 const std::vector<std::string> &Levels, 645 DiagnosticsEngine *Diags, 646 DiagnosticLevelMask &M) { 647 bool Success = true; 648 for (const auto &Level : Levels) { 649 DiagnosticLevelMask const PM = 650 llvm::StringSwitch<DiagnosticLevelMask>(Level) 651 .Case("note", DiagnosticLevelMask::Note) 652 .Case("remark", DiagnosticLevelMask::Remark) 653 .Case("warning", DiagnosticLevelMask::Warning) 654 .Case("error", DiagnosticLevelMask::Error) 655 .Default(DiagnosticLevelMask::None); 656 if (PM == DiagnosticLevelMask::None) { 657 Success = false; 658 if (Diags) 659 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 660 } 661 M = M | PM; 662 } 663 return Success; 664 } 665 666 static void parseSanitizerKinds(StringRef FlagName, 667 const std::vector<std::string> &Sanitizers, 668 DiagnosticsEngine &Diags, SanitizerSet &S) { 669 for (const auto &Sanitizer : Sanitizers) { 670 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 671 if (K == SanitizerMask()) 672 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 673 else 674 S.set(K, true); 675 } 676 } 677 678 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 679 ArgList &Args, DiagnosticsEngine &D, 680 XRayInstrSet &S) { 681 llvm::SmallVector<StringRef, 2> BundleParts; 682 llvm::SplitString(Bundle, BundleParts, ","); 683 for (const auto &B : BundleParts) { 684 auto Mask = parseXRayInstrValue(B); 685 if (Mask == XRayInstrKind::None) 686 if (B != "none") 687 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 688 else 689 S.Mask = Mask; 690 else if (Mask == XRayInstrKind::All) 691 S.Mask = Mask; 692 else 693 S.set(Mask, true); 694 } 695 } 696 697 // Set the profile kind for fprofile-instrument. 698 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 699 DiagnosticsEngine &Diags) { 700 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 701 if (A == nullptr) 702 return; 703 StringRef S = A->getValue(); 704 unsigned I = llvm::StringSwitch<unsigned>(S) 705 .Case("none", CodeGenOptions::ProfileNone) 706 .Case("clang", CodeGenOptions::ProfileClangInstr) 707 .Case("llvm", CodeGenOptions::ProfileIRInstr) 708 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 709 .Default(~0U); 710 if (I == ~0U) { 711 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 712 << S; 713 return; 714 } 715 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 716 Opts.setProfileInstr(Instrumentor); 717 } 718 719 // Set the profile kind using fprofile-instrument-use-path. 720 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 721 const Twine &ProfileName) { 722 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 723 // In error, return silently and let Clang PGOUse report the error message. 724 if (auto E = ReaderOrErr.takeError()) { 725 llvm::consumeError(std::move(E)); 726 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 727 return; 728 } 729 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 730 std::move(ReaderOrErr.get()); 731 if (PGOReader->isIRLevelProfile()) { 732 if (PGOReader->hasCSIRLevelProfile()) 733 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 734 else 735 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 736 } else 737 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 738 } 739 740 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 741 DiagnosticsEngine &Diags, 742 const TargetOptions &TargetOpts, 743 const FrontendOptions &FrontendOpts) { 744 bool Success = true; 745 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 746 747 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 748 // TODO: This could be done in Driver 749 unsigned MaxOptLevel = 3; 750 if (OptimizationLevel > MaxOptLevel) { 751 // If the optimization level is not supported, fall back on the default 752 // optimization 753 Diags.Report(diag::warn_drv_optimization_value) 754 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 755 OptimizationLevel = MaxOptLevel; 756 } 757 Opts.OptimizationLevel = OptimizationLevel; 758 759 // At O0 we want to fully disable inlining outside of cases marked with 760 // 'alwaysinline' that are required for correctness. 761 Opts.setInlining((Opts.OptimizationLevel == 0) 762 ? CodeGenOptions::OnlyAlwaysInlining 763 : CodeGenOptions::NormalInlining); 764 // Explicit inlining flags can disable some or all inlining even at 765 // optimization levels above zero. 766 if (Arg *InlineArg = Args.getLastArg( 767 options::OPT_finline_functions, options::OPT_finline_hint_functions, 768 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 769 if (Opts.OptimizationLevel > 0) { 770 const Option &InlineOpt = InlineArg->getOption(); 771 if (InlineOpt.matches(options::OPT_finline_functions)) 772 Opts.setInlining(CodeGenOptions::NormalInlining); 773 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 774 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 775 else 776 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 777 } 778 } 779 780 Opts.ExperimentalNewPassManager = Args.hasFlag( 781 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 782 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 783 784 Opts.DebugPassManager = 785 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 786 /* Default */ false); 787 788 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 789 StringRef Name = A->getValue(); 790 if (Name == "Accelerate") 791 Opts.setVecLib(CodeGenOptions::Accelerate); 792 else if (Name == "libmvec") 793 Opts.setVecLib(CodeGenOptions::LIBMVEC); 794 else if (Name == "MASSV") 795 Opts.setVecLib(CodeGenOptions::MASSV); 796 else if (Name == "SVML") 797 Opts.setVecLib(CodeGenOptions::SVML); 798 else if (Name == "none") 799 Opts.setVecLib(CodeGenOptions::NoLibrary); 800 else 801 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 802 } 803 804 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 805 unsigned Val = 806 llvm::StringSwitch<unsigned>(A->getValue()) 807 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 808 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 809 .Case("constructor", codegenoptions::DebugInfoConstructor) 810 .Case("limited", codegenoptions::LimitedDebugInfo) 811 .Case("standalone", codegenoptions::FullDebugInfo) 812 .Case("unused-types", codegenoptions::UnusedTypeInfo) 813 .Default(~0U); 814 if (Val == ~0U) 815 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 816 << A->getValue(); 817 else 818 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 819 } 820 // If -fuse-ctor-homing is set and limited debug info is already on, then use 821 // constructor homing. 822 if (Args.getLastArg(OPT_fuse_ctor_homing)) 823 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 824 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 825 826 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 827 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 828 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 829 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 830 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 831 .Default(~0U); 832 if (Val == ~0U) 833 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 834 << A->getValue(); 835 else 836 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 837 } 838 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 839 Opts.DebugColumnInfo = !Args.hasArg(OPT_gno_column_info); 840 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 841 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 842 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 843 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 844 Opts.VirtualFunctionElimination = 845 Args.hasArg(OPT_fvirtual_function_elimination); 846 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 847 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 848 Opts.SplitDwarfOutput = 849 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 850 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 851 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 852 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 853 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 854 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 855 Opts.ForceDwarfFrameSection = Args.hasArg(OPT_fforce_dwarf_frame); 856 857 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 858 auto Split = StringRef(Arg).split('='); 859 Opts.DebugPrefixMap.insert( 860 {std::string(Split.first), std::string(Split.second)}); 861 } 862 863 if (const Arg *A = 864 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 865 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 866 867 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 868 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 869 870 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 871 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 872 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 873 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 874 875 llvm::Triple T(TargetOpts.Triple); 876 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 877 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 878 Opts.EmitCallSiteInfo = true; 879 880 Opts.ValueTrackingVariableLocations = 881 Args.hasArg(OPT_fexperimental_debug_variable_locations); 882 883 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 884 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 885 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 886 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 887 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 888 OPT_fuse_register_sized_bitfield_access); 889 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 890 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 891 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 892 Args.hasArg(OPT_new_struct_path_tbaa); 893 Opts.FineGrainedBitfieldAccesses = 894 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 895 OPT_fno_fine_grained_bitfield_accesses, false); 896 Opts.DwarfDebugFlags = 897 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 898 Opts.RecordCommandLine = 899 std::string(Args.getLastArgValue(OPT_record_command_line)); 900 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 901 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 902 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 903 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 904 Opts.OptimizeSize = getOptimizationLevelSize(Args); 905 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 906 Args.hasArg(OPT_ffreestanding)); 907 if (Opts.SimplifyLibCalls) 908 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 909 Opts.UnrollLoops = 910 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 911 (Opts.OptimizationLevel > 1)); 912 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 913 914 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 915 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 916 Opts.SampleProfileFile = 917 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 918 Opts.DebugInfoForProfiling = Args.hasFlag( 919 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 920 Opts.DebugNameTable = static_cast<unsigned>( 921 Args.hasArg(OPT_ggnu_pubnames) 922 ? llvm::DICompileUnit::DebugNameTableKind::GNU 923 : Args.hasArg(OPT_gpubnames) 924 ? llvm::DICompileUnit::DebugNameTableKind::Default 925 : llvm::DICompileUnit::DebugNameTableKind::None); 926 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 927 928 setPGOInstrumentor(Opts, Args, Diags); 929 Opts.AtomicProfileUpdate = Args.hasArg(OPT_fprofile_update_EQ); 930 Opts.InstrProfileOutput = 931 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 932 Opts.ProfileInstrumentUsePath = 933 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 934 if (!Opts.ProfileInstrumentUsePath.empty()) 935 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 936 Opts.ProfileRemappingFile = 937 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 938 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 939 Diags.Report(diag::err_drv_argument_only_allowed_with) 940 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 941 << "-fexperimental-new-pass-manager"; 942 } 943 944 Opts.CoverageMapping = 945 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 946 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 947 Opts.AsmVerbose = !Args.hasArg(OPT_fno_verbose_asm); 948 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 949 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 950 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 951 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 952 Opts.RegisterGlobalDtorsWithAtExit = 953 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 954 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 955 Opts.CodeModel = TargetOpts.CodeModel; 956 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 957 958 // Handle -mframe-pointer option. 959 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 960 CodeGenOptions::FramePointerKind FP; 961 StringRef Name = A->getValue(); 962 bool ValidFP = true; 963 if (Name == "none") 964 FP = CodeGenOptions::FramePointerKind::None; 965 else if (Name == "non-leaf") 966 FP = CodeGenOptions::FramePointerKind::NonLeaf; 967 else if (Name == "all") 968 FP = CodeGenOptions::FramePointerKind::All; 969 else { 970 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 971 Success = false; 972 ValidFP = false; 973 } 974 if (ValidFP) 975 Opts.setFramePointer(FP); 976 } 977 978 Opts.DisableFree = Args.hasArg(OPT_disable_free); 979 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 980 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 981 Opts.NoEscapingBlockTailCalls = 982 Args.hasArg(OPT_fno_escaping_block_tail_calls); 983 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 984 Opts.LimitFloatPrecision = 985 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 986 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 987 Opts.StrictFloatCastOverflow = 988 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 989 990 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_fno_zero_initialized_in_bss); 991 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 992 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 993 Opts.SmallDataLimit = 994 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 995 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 996 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 997 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 998 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 999 Opts.IncrementalLinkerCompatible = 1000 Args.hasArg(OPT_mincremental_linker_compatible); 1001 Opts.PIECopyRelocations = 1002 Args.hasArg(OPT_mpie_copy_relocations); 1003 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 1004 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 1005 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 1006 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 1007 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 1008 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 1009 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 1010 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 1011 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 1012 Opts.ThreadModel = 1013 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 1014 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 1015 Diags.Report(diag::err_drv_invalid_value) 1016 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 1017 << Opts.ThreadModel; 1018 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 1019 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 1020 1021 Opts.BBSections = 1022 std::string(Args.getLastArgValue(OPT_fbasic_block_sections_EQ, "none")); 1023 1024 // Basic Block Sections implies Function Sections. 1025 Opts.FunctionSections = 1026 Args.hasArg(OPT_ffunction_sections) || 1027 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 1028 1029 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 1030 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 1031 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 1032 Opts.UniqueBasicBlockSectionNames = 1033 Args.hasArg(OPT_funique_basic_block_section_names); 1034 Opts.UniqueInternalLinkageNames = 1035 Args.hasArg(OPT_funique_internal_linkage_names); 1036 1037 Opts.SplitMachineFunctions = Args.hasArg(OPT_fsplit_machine_functions); 1038 1039 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 1040 1041 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 1042 1043 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 1044 1045 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 1046 1047 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1048 Opts.PrepareForThinLTO = false; 1049 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1050 StringRef S = A->getValue(); 1051 if (S == "thin") 1052 Opts.PrepareForThinLTO = true; 1053 else if (S != "full") 1054 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1055 } 1056 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 1057 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 1058 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1059 if (IK.getLanguage() != Language::LLVM_IR) 1060 Diags.Report(diag::err_drv_argument_only_allowed_with) 1061 << A->getAsString(Args) << "-x ir"; 1062 Opts.ThinLTOIndexFile = 1063 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1064 } 1065 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1066 Opts.SaveTempsFilePrefix = 1067 llvm::StringSwitch<std::string>(A->getValue()) 1068 .Case("obj", FrontendOpts.OutputFile) 1069 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 1070 1071 Opts.ThinLinkBitcodeFile = 1072 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 1073 1074 // The memory profile runtime appends the pid to make this name more unique. 1075 const char *MemProfileBasename = "memprof.profraw"; 1076 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1077 SmallString<128> Path( 1078 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1079 llvm::sys::path::append(Path, MemProfileBasename); 1080 Opts.MemoryProfileOutput = std::string(Path); 1081 } else if (Args.hasArg(OPT_fmemory_profile)) 1082 Opts.MemoryProfileOutput = MemProfileBasename; 1083 1084 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 1085 1086 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1087 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1088 1089 Opts.PreferVectorWidth = 1090 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1091 1092 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1093 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1094 1095 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1096 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1097 1098 Opts.EmitGcovNotes = Args.hasArg(OPT_ftest_coverage); 1099 Opts.EmitGcovArcs = Args.hasArg(OPT_fprofile_arcs); 1100 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1101 Opts.CoverageDataFile = 1102 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1103 Opts.CoverageNotesFile = 1104 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1105 Opts.ProfileFilterFiles = 1106 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1107 Opts.ProfileExcludeFiles = 1108 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1109 if (Args.hasArg(OPT_coverage_version_EQ)) { 1110 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1111 if (CoverageVersion.size() != 4) { 1112 Diags.Report(diag::err_drv_invalid_value) 1113 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1114 << CoverageVersion; 1115 } else { 1116 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1117 } 1118 } 1119 } 1120 // Handle -fembed-bitcode option. 1121 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1122 StringRef Name = A->getValue(); 1123 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1124 .Case("off", CodeGenOptions::Embed_Off) 1125 .Case("all", CodeGenOptions::Embed_All) 1126 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1127 .Case("marker", CodeGenOptions::Embed_Marker) 1128 .Default(~0U); 1129 if (Model == ~0U) { 1130 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1131 Success = false; 1132 } else 1133 Opts.setEmbedBitcode( 1134 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1135 } 1136 // FIXME: For backend options that are not yet recorded as function 1137 // attributes in the IR, keep track of them so we can embed them in a 1138 // separate data section and use them when building the bitcode. 1139 for (const auto &A : Args) { 1140 // Do not encode output and input. 1141 if (A->getOption().getID() == options::OPT_o || 1142 A->getOption().getID() == options::OPT_INPUT || 1143 A->getOption().getID() == options::OPT_x || 1144 A->getOption().getID() == options::OPT_fembed_bitcode || 1145 A->getOption().matches(options::OPT_W_Group)) 1146 continue; 1147 ArgStringList ASL; 1148 A->render(Args, ASL); 1149 for (const auto &arg : ASL) { 1150 StringRef ArgStr(arg); 1151 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1152 // using \00 to separate each commandline options. 1153 Opts.CmdArgs.push_back('\0'); 1154 } 1155 } 1156 1157 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1158 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1159 Opts.InstrumentFunctionsAfterInlining = 1160 Args.hasArg(OPT_finstrument_functions_after_inlining); 1161 Opts.InstrumentFunctionEntryBare = 1162 Args.hasArg(OPT_finstrument_function_entry_bare); 1163 1164 Opts.XRayInstrumentFunctions = 1165 Args.hasArg(OPT_fxray_instrument); 1166 Opts.XRayAlwaysEmitCustomEvents = 1167 Args.hasArg(OPT_fxray_always_emit_customevents); 1168 Opts.XRayAlwaysEmitTypedEvents = 1169 Args.hasArg(OPT_fxray_always_emit_typedevents); 1170 Opts.XRayInstructionThreshold = 1171 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1172 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1173 Opts.XRayOmitFunctionIndex = Args.hasArg(OPT_fno_xray_function_index); 1174 Opts.XRayTotalFunctionGroups = 1175 getLastArgIntValue(Args, OPT_fxray_function_groups, 1, Diags); 1176 Opts.XRaySelectedFunctionGroup = 1177 getLastArgIntValue(Args, OPT_fxray_selected_function_group, 0, Diags); 1178 1179 auto XRayInstrBundles = 1180 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1181 if (XRayInstrBundles.empty()) 1182 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1183 else 1184 for (const auto &A : XRayInstrBundles) 1185 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1186 Diags, Opts.XRayInstrumentationBundle); 1187 1188 Opts.PatchableFunctionEntryCount = 1189 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1190 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1191 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1192 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1193 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1194 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1195 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1196 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1197 1198 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1199 StringRef Name = A->getValue(); 1200 if (Name == "full") { 1201 Opts.CFProtectionReturn = 1; 1202 Opts.CFProtectionBranch = 1; 1203 } else if (Name == "return") 1204 Opts.CFProtectionReturn = 1; 1205 else if (Name == "branch") 1206 Opts.CFProtectionBranch = 1; 1207 else if (Name != "none") { 1208 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1209 Success = false; 1210 } 1211 } 1212 1213 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections_EQ)) { 1214 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1215 .Case("none", llvm::DebugCompressionType::None) 1216 .Case("zlib", llvm::DebugCompressionType::Z) 1217 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1218 .Default(llvm::DebugCompressionType::None); 1219 Opts.setCompressDebugSections(DCT); 1220 } 1221 1222 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1223 Opts.DebugCompilationDir = 1224 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1225 for (auto *A : 1226 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1227 CodeGenOptions::BitcodeFileToLink F; 1228 F.Filename = A->getValue(); 1229 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1230 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1231 // When linking CUDA bitcode, propagate function attributes so that 1232 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1233 F.PropagateAttrs = true; 1234 F.Internalize = true; 1235 } 1236 Opts.LinkBitcodeFiles.push_back(F); 1237 } 1238 Opts.SanitizeCoverageType = 1239 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1240 Opts.SanitizeCoverageIndirectCalls = 1241 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1242 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1243 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1244 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1245 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1246 Opts.SanitizeCoverage8bitCounters = 1247 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1248 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1249 Opts.SanitizeCoverageTracePCGuard = 1250 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1251 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1252 Opts.SanitizeCoverageInline8bitCounters = 1253 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1254 Opts.SanitizeCoverageInlineBoolFlag = 1255 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1256 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1257 Opts.SanitizeCoverageStackDepth = 1258 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1259 Opts.SanitizeCoverageAllowlistFiles = 1260 Args.getAllArgValues(OPT_fsanitize_coverage_allowlist); 1261 Opts.SanitizeCoverageBlocklistFiles = 1262 Args.getAllArgValues(OPT_fsanitize_coverage_blocklist); 1263 Opts.SanitizeMemoryTrackOrigins = 1264 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1265 Opts.SanitizeMemoryUseAfterDtor = 1266 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1267 OPT_fno_sanitize_memory_use_after_dtor, 1268 false); 1269 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1270 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1271 Opts.SanitizeCfiICallGeneralizePointers = 1272 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1273 Opts.SanitizeCfiCanonicalJumpTables = 1274 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1275 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1276 if (Arg *A = Args.getLastArg( 1277 OPT_fsanitize_address_poison_custom_array_cookie, 1278 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1279 Opts.SanitizeAddressPoisonCustomArrayCookie = 1280 A->getOption().getID() == 1281 OPT_fsanitize_address_poison_custom_array_cookie; 1282 } 1283 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1284 OPT_fno_sanitize_address_use_after_scope)) { 1285 Opts.SanitizeAddressUseAfterScope = 1286 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1287 } 1288 Opts.SanitizeAddressGlobalsDeadStripping = 1289 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1290 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1291 OPT_fno_sanitize_address_use_odr_indicator)) { 1292 Opts.SanitizeAddressUseOdrIndicator = 1293 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1294 } 1295 Opts.SSPBufferSize = 1296 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1297 1298 Opts.StackProtectorGuard = 1299 std::string(Args.getLastArgValue(OPT_mstack_protector_guard_EQ)); 1300 1301 if (Arg *A = Args.getLastArg(OPT_mstack_protector_guard_offset_EQ)) { 1302 StringRef Val = A->getValue(); 1303 unsigned Offset = Opts.StackProtectorGuardOffset; 1304 Val.getAsInteger(10, Offset); 1305 Opts.StackProtectorGuardOffset = Offset; 1306 } 1307 1308 Opts.StackProtectorGuardReg = 1309 std::string(Args.getLastArgValue(OPT_mstack_protector_guard_reg_EQ, 1310 "none")); 1311 1312 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1313 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1314 StringRef Val = A->getValue(); 1315 unsigned StackAlignment = Opts.StackAlignment; 1316 Val.getAsInteger(10, StackAlignment); 1317 Opts.StackAlignment = StackAlignment; 1318 } 1319 1320 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1321 StringRef Val = A->getValue(); 1322 unsigned StackProbeSize = Opts.StackProbeSize; 1323 Val.getAsInteger(0, StackProbeSize); 1324 Opts.StackProbeSize = StackProbeSize; 1325 } 1326 1327 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1328 1329 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1330 1331 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1332 StringRef Name = A->getValue(); 1333 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1334 .Case("legacy", CodeGenOptions::Legacy) 1335 .Case("non-legacy", CodeGenOptions::NonLegacy) 1336 .Case("mixed", CodeGenOptions::Mixed) 1337 .Default(~0U); 1338 if (Method == ~0U) { 1339 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1340 Success = false; 1341 } else { 1342 Opts.setObjCDispatchMethod( 1343 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1344 } 1345 } 1346 1347 1348 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1349 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1350 1351 if (Args.getLastArg(OPT_femulated_tls) || 1352 Args.getLastArg(OPT_fno_emulated_tls)) { 1353 Opts.ExplicitEmulatedTLS = true; 1354 Opts.EmulatedTLS = 1355 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1356 } 1357 1358 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1359 StringRef Name = A->getValue(); 1360 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1361 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1362 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1363 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1364 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1365 .Default(~0U); 1366 if (Model == ~0U) { 1367 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1368 Success = false; 1369 } else { 1370 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1371 } 1372 } 1373 1374 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1375 1376 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1377 StringRef Val = A->getValue(); 1378 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1379 if (!Opts.FPDenormalMode.isValid()) 1380 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1381 } 1382 1383 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1384 StringRef Val = A->getValue(); 1385 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1386 if (!Opts.FP32DenormalMode.isValid()) 1387 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1388 } 1389 1390 // X86_32 has -fppc-struct-return and -freg-struct-return. 1391 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1392 if (Arg *A = 1393 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1394 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1395 // TODO: We might want to consider enabling these options on AIX in the 1396 // future. 1397 if (T.isOSAIX()) 1398 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1399 << A->getSpelling() << T.str(); 1400 1401 const Option &O = A->getOption(); 1402 if (O.matches(OPT_fpcc_struct_return) || 1403 O.matches(OPT_maix_struct_return)) { 1404 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1405 } else { 1406 assert(O.matches(OPT_freg_struct_return) || 1407 O.matches(OPT_msvr4_struct_return)); 1408 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1409 } 1410 } 1411 1412 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1413 !Args.hasArg(OPT_fvisibility))) 1414 Opts.IgnoreXCOFFVisibility = 1; 1415 1416 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1417 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1418 bool NeedLocTracking = false; 1419 1420 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1421 if (!Opts.OptRecordFile.empty()) 1422 NeedLocTracking = true; 1423 1424 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1425 Opts.OptRecordPasses = A->getValue(); 1426 NeedLocTracking = true; 1427 } 1428 1429 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1430 Opts.OptRecordFormat = A->getValue(); 1431 NeedLocTracking = true; 1432 } 1433 1434 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1435 Opts.OptimizationRemarkPattern = 1436 GenerateOptimizationRemarkRegex(Diags, Args, A); 1437 NeedLocTracking = true; 1438 } 1439 1440 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1441 Opts.OptimizationRemarkMissedPattern = 1442 GenerateOptimizationRemarkRegex(Diags, Args, A); 1443 NeedLocTracking = true; 1444 } 1445 1446 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1447 Opts.OptimizationRemarkAnalysisPattern = 1448 GenerateOptimizationRemarkRegex(Diags, Args, A); 1449 NeedLocTracking = true; 1450 } 1451 1452 Opts.DiagnosticsWithHotness = 1453 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1454 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1455 bool UsingProfile = UsingSampleProfile || 1456 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1457 1458 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1459 // An IR file will contain PGO as metadata 1460 IK.getLanguage() != Language::LLVM_IR) 1461 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1462 << "-fdiagnostics-show-hotness"; 1463 1464 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1465 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1466 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1467 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1468 << "-fdiagnostics-hotness-threshold="; 1469 1470 // If the user requested to use a sample profile for PGO, then the 1471 // backend will need to track source location information so the profile 1472 // can be incorporated into the IR. 1473 if (UsingSampleProfile) 1474 NeedLocTracking = true; 1475 1476 // If the user requested a flag that requires source locations available in 1477 // the backend, make sure that the backend tracks source location information. 1478 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1479 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1480 1481 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1482 1483 // Parse -fsanitize-recover= arguments. 1484 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1485 parseSanitizerKinds("-fsanitize-recover=", 1486 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1487 Opts.SanitizeRecover); 1488 parseSanitizerKinds("-fsanitize-trap=", 1489 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1490 Opts.SanitizeTrap); 1491 1492 Opts.CudaGpuBinaryFileName = 1493 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1494 1495 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1496 1497 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1498 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1499 1500 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1501 1502 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1503 1504 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1505 1506 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1507 1508 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1509 1510 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1511 1512 Opts.SymbolPartition = 1513 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1514 1515 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1516 Opts.AAPCSBitfieldWidth = 1517 Args.hasFlag(OPT_AAPCSBitfieldWidth, OPT_ForceNoAAPCSBitfieldWidth, true); 1518 1519 Opts.PassByValueIsNoAlias = Args.hasArg(OPT_fpass_by_value_is_noalias); 1520 1521 return Success; 1522 } 1523 1524 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1525 ArgList &Args) { 1526 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1527 Opts.Targets = Args.getAllArgValues(OPT_MT); 1528 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1529 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1530 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1531 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1532 Opts.HeaderIncludeOutputFile = 1533 std::string(Args.getLastArgValue(OPT_header_include_file)); 1534 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1535 if (Args.hasArg(OPT_show_includes)) { 1536 // Writing both /showIncludes and preprocessor output to stdout 1537 // would produce interleaved output, so use stderr for /showIncludes. 1538 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1539 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1540 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1541 else 1542 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1543 } else { 1544 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1545 } 1546 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1547 Opts.ModuleDependencyOutputDir = 1548 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1549 if (Args.hasArg(OPT_MV)) 1550 Opts.OutputFormat = DependencyOutputFormat::NMake; 1551 // Add sanitizer blacklists as extra dependencies. 1552 // They won't be discovered by the regular preprocessor, so 1553 // we let make / ninja to know about this implicit dependency. 1554 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1555 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1556 StringRef Val = A->getValue(); 1557 if (Val.find('=') == StringRef::npos) 1558 Opts.ExtraDeps.push_back(std::string(Val)); 1559 } 1560 if (Opts.IncludeSystemHeaders) { 1561 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1562 StringRef Val = A->getValue(); 1563 if (Val.find('=') == StringRef::npos) 1564 Opts.ExtraDeps.push_back(std::string(Val)); 1565 } 1566 } 1567 } 1568 1569 // Propagate the extra dependencies. 1570 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1571 Opts.ExtraDeps.push_back(A->getValue()); 1572 } 1573 1574 // Only the -fmodule-file=<file> form. 1575 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1576 StringRef Val = A->getValue(); 1577 if (Val.find('=') == StringRef::npos) 1578 Opts.ExtraDeps.push_back(std::string(Val)); 1579 } 1580 } 1581 1582 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1583 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1584 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1585 // Support both clang's -f[no-]color-diagnostics and gcc's 1586 // -f[no-]diagnostics-colors[=never|always|auto]. 1587 enum { 1588 Colors_On, 1589 Colors_Off, 1590 Colors_Auto 1591 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1592 for (auto *A : Args) { 1593 const Option &O = A->getOption(); 1594 if (O.matches(options::OPT_fcolor_diagnostics) || 1595 O.matches(options::OPT_fdiagnostics_color)) { 1596 ShowColors = Colors_On; 1597 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1598 O.matches(options::OPT_fno_diagnostics_color)) { 1599 ShowColors = Colors_Off; 1600 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1601 StringRef Value(A->getValue()); 1602 if (Value == "always") 1603 ShowColors = Colors_On; 1604 else if (Value == "never") 1605 ShowColors = Colors_Off; 1606 else if (Value == "auto") 1607 ShowColors = Colors_Auto; 1608 } 1609 } 1610 return ShowColors == Colors_On || 1611 (ShowColors == Colors_Auto && 1612 llvm::sys::Process::StandardErrHasColors()); 1613 } 1614 1615 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1616 DiagnosticsEngine *Diags) { 1617 bool Success = true; 1618 for (const auto &Prefix : VerifyPrefixes) { 1619 // Every prefix must start with a letter and contain only alphanumeric 1620 // characters, hyphens, and underscores. 1621 auto BadChar = llvm::find_if(Prefix, [](char C) { 1622 return !isAlphanumeric(C) && C != '-' && C != '_'; 1623 }); 1624 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1625 Success = false; 1626 if (Diags) { 1627 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1628 Diags->Report(diag::note_drv_verify_prefix_spelling); 1629 } 1630 } 1631 } 1632 return Success; 1633 } 1634 1635 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1636 DiagnosticsEngine *Diags, 1637 bool DefaultDiagColor) { 1638 bool Success = true; 1639 1640 Opts.DiagnosticLogFile = 1641 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1642 if (Arg *A = 1643 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1644 Opts.DiagnosticSerializationFile = A->getValue(); 1645 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1646 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1647 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1648 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1649 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1650 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1651 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1652 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1653 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1654 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1655 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1656 1657 // Default behavior is to not to show note include stacks. 1658 Opts.ShowNoteIncludeStack = false; 1659 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1660 OPT_fno_diagnostics_show_note_include_stack)) 1661 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1662 Opts.ShowNoteIncludeStack = true; 1663 1664 StringRef ShowOverloads = 1665 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1666 if (ShowOverloads == "best") 1667 Opts.setShowOverloads(Ovl_Best); 1668 else if (ShowOverloads == "all") 1669 Opts.setShowOverloads(Ovl_All); 1670 else { 1671 Success = false; 1672 if (Diags) 1673 Diags->Report(diag::err_drv_invalid_value) 1674 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1675 << ShowOverloads; 1676 } 1677 1678 StringRef ShowCategory = 1679 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1680 if (ShowCategory == "none") 1681 Opts.ShowCategories = 0; 1682 else if (ShowCategory == "id") 1683 Opts.ShowCategories = 1; 1684 else if (ShowCategory == "name") 1685 Opts.ShowCategories = 2; 1686 else { 1687 Success = false; 1688 if (Diags) 1689 Diags->Report(diag::err_drv_invalid_value) 1690 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1691 << ShowCategory; 1692 } 1693 1694 StringRef Format = 1695 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1696 if (Format == "clang") 1697 Opts.setFormat(DiagnosticOptions::Clang); 1698 else if (Format == "msvc") 1699 Opts.setFormat(DiagnosticOptions::MSVC); 1700 else if (Format == "msvc-fallback") { 1701 Opts.setFormat(DiagnosticOptions::MSVC); 1702 Opts.CLFallbackMode = true; 1703 } else if (Format == "vi") 1704 Opts.setFormat(DiagnosticOptions::Vi); 1705 else { 1706 Success = false; 1707 if (Diags) 1708 Diags->Report(diag::err_drv_invalid_value) 1709 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1710 << Format; 1711 } 1712 1713 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1714 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1715 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1716 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1717 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1718 if (Args.hasArg(OPT_verify)) 1719 Opts.VerifyPrefixes.push_back("expected"); 1720 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1721 // then sort it to prepare for fast lookup using std::binary_search. 1722 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1723 Opts.VerifyDiagnostics = false; 1724 Success = false; 1725 } 1726 else 1727 llvm::sort(Opts.VerifyPrefixes); 1728 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1729 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1730 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1731 Diags, DiagMask); 1732 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1733 DiagMask = DiagnosticLevelMask::All; 1734 Opts.setVerifyIgnoreUnexpected(DiagMask); 1735 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1736 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1737 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1738 Opts.MacroBacktraceLimit = 1739 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1740 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1741 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1742 Args, OPT_ftemplate_backtrace_limit, 1743 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1744 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1745 Args, OPT_fconstexpr_backtrace_limit, 1746 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1747 Opts.SpellCheckingLimit = getLastArgIntValue( 1748 Args, OPT_fspell_checking_limit, 1749 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1750 Opts.SnippetLineLimit = getLastArgIntValue( 1751 Args, OPT_fcaret_diagnostics_max_lines, 1752 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1753 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1754 DiagnosticOptions::DefaultTabStop, Diags); 1755 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1756 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1757 if (Diags) 1758 Diags->Report(diag::warn_ignoring_ftabstop_value) 1759 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1760 } 1761 Opts.MessageLength = 1762 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1763 1764 Opts.UndefPrefixes = Args.getAllArgValues(OPT_Wundef_prefix_EQ); 1765 1766 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1767 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1768 1769 return Success; 1770 } 1771 1772 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1773 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1774 } 1775 1776 /// Parse the argument to the -ftest-module-file-extension 1777 /// command-line argument. 1778 /// 1779 /// \returns true on error, false on success. 1780 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1781 std::string &BlockName, 1782 unsigned &MajorVersion, 1783 unsigned &MinorVersion, 1784 bool &Hashed, 1785 std::string &UserInfo) { 1786 SmallVector<StringRef, 5> Args; 1787 Arg.split(Args, ':', 5); 1788 if (Args.size() < 5) 1789 return true; 1790 1791 BlockName = std::string(Args[0]); 1792 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1793 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1794 if (Args[3].getAsInteger(2, Hashed)) return true; 1795 if (Args.size() > 4) 1796 UserInfo = std::string(Args[4]); 1797 return false; 1798 } 1799 1800 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1801 DiagnosticsEngine &Diags, 1802 bool &IsHeaderFile) { 1803 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1804 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1805 switch (A->getOption().getID()) { 1806 default: 1807 llvm_unreachable("Invalid option in group!"); 1808 case OPT_ast_list: 1809 Opts.ProgramAction = frontend::ASTDeclList; break; 1810 case OPT_ast_dump_all_EQ: 1811 case OPT_ast_dump_EQ: { 1812 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1813 .CaseLower("default", ADOF_Default) 1814 .CaseLower("json", ADOF_JSON) 1815 .Default(std::numeric_limits<unsigned>::max()); 1816 1817 if (Val != std::numeric_limits<unsigned>::max()) 1818 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1819 else { 1820 Diags.Report(diag::err_drv_invalid_value) 1821 << A->getAsString(Args) << A->getValue(); 1822 Opts.ASTDumpFormat = ADOF_Default; 1823 } 1824 LLVM_FALLTHROUGH; 1825 } 1826 case OPT_ast_dump: 1827 case OPT_ast_dump_all: 1828 case OPT_ast_dump_lookups: 1829 case OPT_ast_dump_decl_types: 1830 Opts.ProgramAction = frontend::ASTDump; break; 1831 case OPT_ast_print: 1832 Opts.ProgramAction = frontend::ASTPrint; break; 1833 case OPT_ast_view: 1834 Opts.ProgramAction = frontend::ASTView; break; 1835 case OPT_compiler_options_dump: 1836 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1837 case OPT_dump_raw_tokens: 1838 Opts.ProgramAction = frontend::DumpRawTokens; break; 1839 case OPT_dump_tokens: 1840 Opts.ProgramAction = frontend::DumpTokens; break; 1841 case OPT_S: 1842 Opts.ProgramAction = frontend::EmitAssembly; break; 1843 case OPT_emit_llvm_bc: 1844 Opts.ProgramAction = frontend::EmitBC; break; 1845 case OPT_emit_html: 1846 Opts.ProgramAction = frontend::EmitHTML; break; 1847 case OPT_emit_llvm: 1848 Opts.ProgramAction = frontend::EmitLLVM; break; 1849 case OPT_emit_llvm_only: 1850 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1851 case OPT_emit_codegen_only: 1852 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1853 case OPT_emit_obj: 1854 Opts.ProgramAction = frontend::EmitObj; break; 1855 case OPT_fixit_EQ: 1856 Opts.FixItSuffix = A->getValue(); 1857 LLVM_FALLTHROUGH; 1858 case OPT_fixit: 1859 Opts.ProgramAction = frontend::FixIt; break; 1860 case OPT_emit_module: 1861 Opts.ProgramAction = frontend::GenerateModule; break; 1862 case OPT_emit_module_interface: 1863 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1864 case OPT_emit_header_module: 1865 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1866 case OPT_emit_pch: 1867 Opts.ProgramAction = frontend::GeneratePCH; break; 1868 case OPT_emit_interface_stubs: { 1869 StringRef ArgStr = 1870 Args.hasArg(OPT_interface_stub_version_EQ) 1871 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1872 : "experimental-ifs-v2"; 1873 if (ArgStr == "experimental-yaml-elf-v1" || 1874 ArgStr == "experimental-ifs-v1" || 1875 ArgStr == "experimental-tapi-elf-v1") { 1876 std::string ErrorMessage = 1877 "Invalid interface stub format: " + ArgStr.str() + 1878 " is deprecated."; 1879 Diags.Report(diag::err_drv_invalid_value) 1880 << "Must specify a valid interface stub format type, ie: " 1881 "-interface-stub-version=experimental-ifs-v2" 1882 << ErrorMessage; 1883 } else if (!ArgStr.startswith("experimental-ifs-")) { 1884 std::string ErrorMessage = 1885 "Invalid interface stub format: " + ArgStr.str() + "."; 1886 Diags.Report(diag::err_drv_invalid_value) 1887 << "Must specify a valid interface stub format type, ie: " 1888 "-interface-stub-version=experimental-ifs-v2" 1889 << ErrorMessage; 1890 } else { 1891 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1892 } 1893 break; 1894 } 1895 case OPT_init_only: 1896 Opts.ProgramAction = frontend::InitOnly; break; 1897 case OPT_fsyntax_only: 1898 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1899 case OPT_module_file_info: 1900 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1901 case OPT_verify_pch: 1902 Opts.ProgramAction = frontend::VerifyPCH; break; 1903 case OPT_print_preamble: 1904 Opts.ProgramAction = frontend::PrintPreamble; break; 1905 case OPT_E: 1906 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1907 case OPT_templight_dump: 1908 Opts.ProgramAction = frontend::TemplightDump; break; 1909 case OPT_rewrite_macros: 1910 Opts.ProgramAction = frontend::RewriteMacros; break; 1911 case OPT_rewrite_objc: 1912 Opts.ProgramAction = frontend::RewriteObjC; break; 1913 case OPT_rewrite_test: 1914 Opts.ProgramAction = frontend::RewriteTest; break; 1915 case OPT_analyze: 1916 Opts.ProgramAction = frontend::RunAnalysis; break; 1917 case OPT_migrate: 1918 Opts.ProgramAction = frontend::MigrateSource; break; 1919 case OPT_Eonly: 1920 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1921 case OPT_print_dependency_directives_minimized_source: 1922 Opts.ProgramAction = 1923 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1924 break; 1925 } 1926 } 1927 1928 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1929 Opts.Plugins.emplace_back(A->getValue(0)); 1930 Opts.ProgramAction = frontend::PluginAction; 1931 Opts.ActionName = A->getValue(); 1932 } 1933 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1934 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1935 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1936 1937 for (const std::string &Arg : 1938 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1939 std::string BlockName; 1940 unsigned MajorVersion; 1941 unsigned MinorVersion; 1942 bool Hashed; 1943 std::string UserInfo; 1944 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1945 MinorVersion, Hashed, UserInfo)) { 1946 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1947 1948 continue; 1949 } 1950 1951 // Add the testing module file extension. 1952 Opts.ModuleFileExtensions.push_back( 1953 std::make_shared<TestModuleFileExtension>( 1954 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1955 } 1956 1957 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1958 Opts.CodeCompletionAt = 1959 ParsedSourceLocation::FromString(A->getValue()); 1960 if (Opts.CodeCompletionAt.FileName.empty()) 1961 Diags.Report(diag::err_drv_invalid_value) 1962 << A->getAsString(Args) << A->getValue(); 1963 } 1964 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1965 1966 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1967 Opts.Plugins = Args.getAllArgValues(OPT_load); 1968 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1969 Opts.ShowHelp = Args.hasArg(OPT_help); 1970 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1971 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1972 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1973 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1974 Opts.TimeTraceGranularity = getLastArgIntValue( 1975 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1976 Opts.ShowVersion = Args.hasArg(OPT_version); 1977 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1978 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1979 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1980 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1981 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1982 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1983 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1984 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1985 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1986 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1987 Opts.ASTDumpDeclTypes = Args.hasArg(OPT_ast_dump_decl_types); 1988 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1989 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1990 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1991 // Only the -fmodule-file=<file> form. 1992 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1993 StringRef Val = A->getValue(); 1994 if (Val.find('=') == StringRef::npos) 1995 Opts.ModuleFiles.push_back(std::string(Val)); 1996 } 1997 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1998 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1999 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 2000 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 2001 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 2002 2003 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2004 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2005 << "-emit-module"; 2006 2007 Opts.CodeCompleteOpts.IncludeMacros 2008 = Args.hasArg(OPT_code_completion_macros); 2009 Opts.CodeCompleteOpts.IncludeCodePatterns 2010 = Args.hasArg(OPT_code_completion_patterns); 2011 Opts.CodeCompleteOpts.IncludeGlobals 2012 = !Args.hasArg(OPT_no_code_completion_globals); 2013 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 2014 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 2015 Opts.CodeCompleteOpts.IncludeBriefComments 2016 = Args.hasArg(OPT_code_completion_brief_comments); 2017 Opts.CodeCompleteOpts.IncludeFixIts 2018 = Args.hasArg(OPT_code_completion_with_fixits); 2019 2020 Opts.OverrideRecordLayoutsFile = 2021 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 2022 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 2023 if (Args.hasArg(OPT_aux_target_cpu)) 2024 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2025 if (Args.hasArg(OPT_aux_target_feature)) 2026 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2027 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 2028 2029 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 2030 OPT_arcmt_modify, 2031 OPT_arcmt_migrate)) { 2032 switch (A->getOption().getID()) { 2033 default: 2034 llvm_unreachable("missed a case"); 2035 case OPT_arcmt_check: 2036 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 2037 break; 2038 case OPT_arcmt_modify: 2039 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 2040 break; 2041 case OPT_arcmt_migrate: 2042 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 2043 break; 2044 } 2045 } 2046 Opts.MTMigrateDir = 2047 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 2048 Opts.ARCMTMigrateReportOut = 2049 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 2050 Opts.ARCMTMigrateEmitARCErrors 2051 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 2052 2053 Opts.ObjCMTWhiteListPath = 2054 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 2055 2056 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2057 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2058 Diags.Report(diag::err_drv_argument_not_allowed_with) 2059 << "ARC migration" << "ObjC migration"; 2060 } 2061 2062 InputKind DashX(Language::Unknown); 2063 if (const Arg *A = Args.getLastArg(OPT_x)) { 2064 StringRef XValue = A->getValue(); 2065 2066 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2067 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2068 bool Preprocessed = XValue.consume_back("-cpp-output"); 2069 bool ModuleMap = XValue.consume_back("-module-map"); 2070 IsHeaderFile = !Preprocessed && !ModuleMap && 2071 XValue != "precompiled-header" && 2072 XValue.consume_back("-header"); 2073 2074 // Principal languages. 2075 DashX = llvm::StringSwitch<InputKind>(XValue) 2076 .Case("c", Language::C) 2077 .Case("cl", Language::OpenCL) 2078 .Case("cuda", Language::CUDA) 2079 .Case("hip", Language::HIP) 2080 .Case("c++", Language::CXX) 2081 .Case("objective-c", Language::ObjC) 2082 .Case("objective-c++", Language::ObjCXX) 2083 .Case("renderscript", Language::RenderScript) 2084 .Default(Language::Unknown); 2085 2086 // "objc[++]-cpp-output" is an acceptable synonym for 2087 // "objective-c[++]-cpp-output". 2088 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2089 DashX = llvm::StringSwitch<InputKind>(XValue) 2090 .Case("objc", Language::ObjC) 2091 .Case("objc++", Language::ObjCXX) 2092 .Default(Language::Unknown); 2093 2094 // Some special cases cannot be combined with suffixes. 2095 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2096 DashX = llvm::StringSwitch<InputKind>(XValue) 2097 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2098 .Case("assembler-with-cpp", Language::Asm) 2099 .Cases("ast", "pcm", "precompiled-header", 2100 InputKind(Language::Unknown, InputKind::Precompiled)) 2101 .Case("ir", Language::LLVM_IR) 2102 .Default(Language::Unknown); 2103 2104 if (DashX.isUnknown()) 2105 Diags.Report(diag::err_drv_invalid_value) 2106 << A->getAsString(Args) << A->getValue(); 2107 2108 if (Preprocessed) 2109 DashX = DashX.getPreprocessed(); 2110 if (ModuleMap) 2111 DashX = DashX.withFormat(InputKind::ModuleMap); 2112 } 2113 2114 // '-' is the default input if none is given. 2115 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2116 Opts.Inputs.clear(); 2117 if (Inputs.empty()) 2118 Inputs.push_back("-"); 2119 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2120 InputKind IK = DashX; 2121 if (IK.isUnknown()) { 2122 IK = FrontendOptions::getInputKindForExtension( 2123 StringRef(Inputs[i]).rsplit('.').second); 2124 // FIXME: Warn on this? 2125 if (IK.isUnknown()) 2126 IK = Language::C; 2127 // FIXME: Remove this hack. 2128 if (i == 0) 2129 DashX = IK; 2130 } 2131 2132 bool IsSystem = false; 2133 2134 // The -emit-module action implicitly takes a module map. 2135 if (Opts.ProgramAction == frontend::GenerateModule && 2136 IK.getFormat() == InputKind::Source) { 2137 IK = IK.withFormat(InputKind::ModuleMap); 2138 IsSystem = Opts.IsSystemModule; 2139 } 2140 2141 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2142 } 2143 2144 return DashX; 2145 } 2146 2147 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2148 void *MainAddr) { 2149 std::string ClangExecutable = 2150 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2151 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2152 } 2153 2154 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2155 const std::string &WorkingDir) { 2156 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2157 Opts.Verbose = Args.hasArg(OPT_v); 2158 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2159 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2160 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2161 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2162 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2163 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2164 2165 // Canonicalize -fmodules-cache-path before storing it. 2166 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2167 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2168 if (WorkingDir.empty()) 2169 llvm::sys::fs::make_absolute(P); 2170 else 2171 llvm::sys::fs::make_absolute(WorkingDir, P); 2172 } 2173 llvm::sys::path::remove_dots(P); 2174 Opts.ModuleCachePath = std::string(P.str()); 2175 2176 Opts.ModuleUserBuildPath = 2177 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2178 // Only the -fmodule-file=<name>=<file> form. 2179 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2180 StringRef Val = A->getValue(); 2181 if (Val.find('=') != StringRef::npos){ 2182 auto Split = Val.split('='); 2183 Opts.PrebuiltModuleFiles.insert( 2184 {std::string(Split.first), std::string(Split.second)}); 2185 } 2186 } 2187 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2188 Opts.AddPrebuiltModulePath(A->getValue()); 2189 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2190 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2191 Opts.ModulesValidateDiagnosticOptions = 2192 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2193 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2194 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2195 Opts.EnablePrebuiltImplicitModules = 2196 Args.hasArg(OPT_fprebuilt_implicit_modules); 2197 Opts.ModuleCachePruneInterval = 2198 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2199 Opts.ModuleCachePruneAfter = 2200 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2201 Opts.ModulesValidateOncePerBuildSession = 2202 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2203 Opts.BuildSessionTimestamp = 2204 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2205 Opts.ModulesValidateSystemHeaders = 2206 Args.hasArg(OPT_fmodules_validate_system_headers); 2207 Opts.ValidateASTInputFilesContent = 2208 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2209 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2210 Opts.ModuleFormat = A->getValue(); 2211 2212 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2213 StringRef MacroDef = A->getValue(); 2214 Opts.ModulesIgnoreMacros.insert( 2215 llvm::CachedHashString(MacroDef.split('=').first)); 2216 } 2217 2218 // Add -I..., -F..., and -index-header-map options in order. 2219 bool IsIndexHeaderMap = false; 2220 bool IsSysrootSpecified = 2221 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2222 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2223 if (A->getOption().matches(OPT_index_header_map)) { 2224 // -index-header-map applies to the next -I or -F. 2225 IsIndexHeaderMap = true; 2226 continue; 2227 } 2228 2229 frontend::IncludeDirGroup Group = 2230 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2231 2232 bool IsFramework = A->getOption().matches(OPT_F); 2233 std::string Path = A->getValue(); 2234 2235 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2236 SmallString<32> Buffer; 2237 llvm::sys::path::append(Buffer, Opts.Sysroot, 2238 llvm::StringRef(A->getValue()).substr(1)); 2239 Path = std::string(Buffer.str()); 2240 } 2241 2242 Opts.AddPath(Path, Group, IsFramework, 2243 /*IgnoreSysroot*/ true); 2244 IsIndexHeaderMap = false; 2245 } 2246 2247 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2248 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2249 for (const auto *A : 2250 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2251 if (A->getOption().matches(OPT_iprefix)) 2252 Prefix = A->getValue(); 2253 else if (A->getOption().matches(OPT_iwithprefix)) 2254 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2255 else 2256 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2257 } 2258 2259 for (const auto *A : Args.filtered(OPT_idirafter)) 2260 Opts.AddPath(A->getValue(), frontend::After, false, true); 2261 for (const auto *A : Args.filtered(OPT_iquote)) 2262 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2263 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2264 Opts.AddPath(A->getValue(), frontend::System, false, 2265 !A->getOption().matches(OPT_iwithsysroot)); 2266 for (const auto *A : Args.filtered(OPT_iframework)) 2267 Opts.AddPath(A->getValue(), frontend::System, true, true); 2268 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2269 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2270 /*IgnoreSysRoot=*/false); 2271 2272 // Add the paths for the various language specific isystem flags. 2273 for (const auto *A : Args.filtered(OPT_c_isystem)) 2274 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2275 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2276 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2277 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2278 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2279 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2280 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2281 2282 // Add the internal paths from a driver that detects standard include paths. 2283 for (const auto *A : 2284 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2285 frontend::IncludeDirGroup Group = frontend::System; 2286 if (A->getOption().matches(OPT_internal_externc_isystem)) 2287 Group = frontend::ExternCSystem; 2288 Opts.AddPath(A->getValue(), Group, false, true); 2289 } 2290 2291 // Add the path prefixes which are implicitly treated as being system headers. 2292 for (const auto *A : 2293 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2294 Opts.AddSystemHeaderPrefix( 2295 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2296 2297 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2298 Opts.AddVFSOverlayFile(A->getValue()); 2299 } 2300 2301 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2302 const llvm::Triple &T, 2303 PreprocessorOptions &PPOpts, 2304 LangStandard::Kind LangStd) { 2305 // Set some properties which depend solely on the input kind; it would be nice 2306 // to move these to the language standard, and have the driver resolve the 2307 // input kind + language standard. 2308 // 2309 // FIXME: Perhaps a better model would be for a single source file to have 2310 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2311 // simultaneously active? 2312 if (IK.getLanguage() == Language::Asm) { 2313 Opts.AsmPreprocessor = 1; 2314 } else if (IK.isObjectiveC()) { 2315 Opts.ObjC = 1; 2316 } 2317 2318 if (LangStd == LangStandard::lang_unspecified) { 2319 // Based on the base language, pick one. 2320 switch (IK.getLanguage()) { 2321 case Language::Unknown: 2322 case Language::LLVM_IR: 2323 llvm_unreachable("Invalid input kind!"); 2324 case Language::OpenCL: 2325 LangStd = LangStandard::lang_opencl10; 2326 break; 2327 case Language::CUDA: 2328 LangStd = LangStandard::lang_cuda; 2329 break; 2330 case Language::Asm: 2331 case Language::C: 2332 #if defined(CLANG_DEFAULT_STD_C) 2333 LangStd = CLANG_DEFAULT_STD_C; 2334 #else 2335 // The PS4 uses C99 as the default C standard. 2336 if (T.isPS4()) 2337 LangStd = LangStandard::lang_gnu99; 2338 else 2339 LangStd = LangStandard::lang_gnu17; 2340 #endif 2341 break; 2342 case Language::ObjC: 2343 #if defined(CLANG_DEFAULT_STD_C) 2344 LangStd = CLANG_DEFAULT_STD_C; 2345 #else 2346 LangStd = LangStandard::lang_gnu11; 2347 #endif 2348 break; 2349 case Language::CXX: 2350 case Language::ObjCXX: 2351 #if defined(CLANG_DEFAULT_STD_CXX) 2352 LangStd = CLANG_DEFAULT_STD_CXX; 2353 #else 2354 LangStd = LangStandard::lang_gnucxx14; 2355 #endif 2356 break; 2357 case Language::RenderScript: 2358 LangStd = LangStandard::lang_c99; 2359 break; 2360 case Language::HIP: 2361 LangStd = LangStandard::lang_hip; 2362 break; 2363 } 2364 } 2365 2366 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2367 Opts.LineComment = Std.hasLineComments(); 2368 Opts.C99 = Std.isC99(); 2369 Opts.C11 = Std.isC11(); 2370 Opts.C17 = Std.isC17(); 2371 Opts.C2x = Std.isC2x(); 2372 Opts.CPlusPlus = Std.isCPlusPlus(); 2373 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2374 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2375 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2376 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2377 Opts.Digraphs = Std.hasDigraphs(); 2378 Opts.GNUMode = Std.isGNUMode(); 2379 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2380 Opts.GNUCVersion = 0; 2381 Opts.HexFloats = Std.hasHexFloats(); 2382 Opts.ImplicitInt = Std.hasImplicitInt(); 2383 2384 // Set OpenCL Version. 2385 Opts.OpenCL = Std.isOpenCL(); 2386 if (LangStd == LangStandard::lang_opencl10) 2387 Opts.OpenCLVersion = 100; 2388 else if (LangStd == LangStandard::lang_opencl11) 2389 Opts.OpenCLVersion = 110; 2390 else if (LangStd == LangStandard::lang_opencl12) 2391 Opts.OpenCLVersion = 120; 2392 else if (LangStd == LangStandard::lang_opencl20) 2393 Opts.OpenCLVersion = 200; 2394 else if (LangStd == LangStandard::lang_opencl30) 2395 Opts.OpenCLVersion = 300; 2396 else if (LangStd == LangStandard::lang_openclcpp) 2397 Opts.OpenCLCPlusPlusVersion = 100; 2398 2399 // OpenCL has some additional defaults. 2400 if (Opts.OpenCL) { 2401 Opts.AltiVec = 0; 2402 Opts.ZVector = 0; 2403 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2404 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2405 Opts.NativeHalfType = 1; 2406 Opts.NativeHalfArgsAndReturns = 1; 2407 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2408 2409 // Include default header file for OpenCL. 2410 if (Opts.IncludeDefaultHeader) { 2411 if (Opts.DeclareOpenCLBuiltins) { 2412 // Only include base header file for builtin types and constants. 2413 PPOpts.Includes.push_back("opencl-c-base.h"); 2414 } else { 2415 PPOpts.Includes.push_back("opencl-c.h"); 2416 } 2417 } 2418 } 2419 2420 Opts.HIP = IK.getLanguage() == Language::HIP; 2421 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2422 if (Opts.CUDA) 2423 // Set default FP_CONTRACT to FAST. 2424 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2425 2426 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2427 if (Opts.RenderScript) { 2428 Opts.NativeHalfType = 1; 2429 Opts.NativeHalfArgsAndReturns = 1; 2430 } 2431 2432 // OpenCL and C++ both have bool, true, false keywords. 2433 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2434 2435 // OpenCL has half keyword 2436 Opts.Half = Opts.OpenCL; 2437 2438 // C++ has wchar_t keyword. 2439 Opts.WChar = Opts.CPlusPlus; 2440 2441 Opts.GNUKeywords = Opts.GNUMode; 2442 Opts.CXXOperatorNames = Opts.CPlusPlus; 2443 2444 Opts.AlignedAllocation = Opts.CPlusPlus17; 2445 2446 Opts.DollarIdents = !Opts.AsmPreprocessor; 2447 2448 // Enable [[]] attributes in C++11 and C2x by default. 2449 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2450 } 2451 2452 /// Attempt to parse a visibility value out of the given argument. 2453 static Visibility parseVisibility(Arg *arg, ArgList &args, 2454 DiagnosticsEngine &diags) { 2455 StringRef value = arg->getValue(); 2456 if (value == "default") { 2457 return DefaultVisibility; 2458 } else if (value == "hidden" || value == "internal") { 2459 return HiddenVisibility; 2460 } else if (value == "protected") { 2461 // FIXME: diagnose if target does not support protected visibility 2462 return ProtectedVisibility; 2463 } 2464 2465 diags.Report(diag::err_drv_invalid_value) 2466 << arg->getAsString(args) << value; 2467 return DefaultVisibility; 2468 } 2469 2470 /// Check if input file kind and language standard are compatible. 2471 static bool IsInputCompatibleWithStandard(InputKind IK, 2472 const LangStandard &S) { 2473 switch (IK.getLanguage()) { 2474 case Language::Unknown: 2475 case Language::LLVM_IR: 2476 llvm_unreachable("should not parse language flags for this input"); 2477 2478 case Language::C: 2479 case Language::ObjC: 2480 case Language::RenderScript: 2481 return S.getLanguage() == Language::C; 2482 2483 case Language::OpenCL: 2484 return S.getLanguage() == Language::OpenCL; 2485 2486 case Language::CXX: 2487 case Language::ObjCXX: 2488 return S.getLanguage() == Language::CXX; 2489 2490 case Language::CUDA: 2491 // FIXME: What -std= values should be permitted for CUDA compilations? 2492 return S.getLanguage() == Language::CUDA || 2493 S.getLanguage() == Language::CXX; 2494 2495 case Language::HIP: 2496 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2497 2498 case Language::Asm: 2499 // Accept (and ignore) all -std= values. 2500 // FIXME: The -std= value is not ignored; it affects the tokenization 2501 // and preprocessing rules if we're preprocessing this asm input. 2502 return true; 2503 } 2504 2505 llvm_unreachable("unexpected input language"); 2506 } 2507 2508 /// Get language name for given input kind. 2509 static const StringRef GetInputKindName(InputKind IK) { 2510 switch (IK.getLanguage()) { 2511 case Language::C: 2512 return "C"; 2513 case Language::ObjC: 2514 return "Objective-C"; 2515 case Language::CXX: 2516 return "C++"; 2517 case Language::ObjCXX: 2518 return "Objective-C++"; 2519 case Language::OpenCL: 2520 return "OpenCL"; 2521 case Language::CUDA: 2522 return "CUDA"; 2523 case Language::RenderScript: 2524 return "RenderScript"; 2525 case Language::HIP: 2526 return "HIP"; 2527 2528 case Language::Asm: 2529 return "Asm"; 2530 case Language::LLVM_IR: 2531 return "LLVM IR"; 2532 2533 case Language::Unknown: 2534 break; 2535 } 2536 llvm_unreachable("unknown input language"); 2537 } 2538 2539 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2540 const TargetOptions &TargetOpts, 2541 PreprocessorOptions &PPOpts, 2542 DiagnosticsEngine &Diags) { 2543 // FIXME: Cleanup per-file based stuff. 2544 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2545 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2546 LangStd = LangStandard::getLangKind(A->getValue()); 2547 if (LangStd == LangStandard::lang_unspecified) { 2548 Diags.Report(diag::err_drv_invalid_value) 2549 << A->getAsString(Args) << A->getValue(); 2550 // Report supported standards with short description. 2551 for (unsigned KindValue = 0; 2552 KindValue != LangStandard::lang_unspecified; 2553 ++KindValue) { 2554 const LangStandard &Std = LangStandard::getLangStandardForKind( 2555 static_cast<LangStandard::Kind>(KindValue)); 2556 if (IsInputCompatibleWithStandard(IK, Std)) { 2557 auto Diag = Diags.Report(diag::note_drv_use_standard); 2558 Diag << Std.getName() << Std.getDescription(); 2559 unsigned NumAliases = 0; 2560 #define LANGSTANDARD(id, name, lang, desc, features) 2561 #define LANGSTANDARD_ALIAS(id, alias) \ 2562 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2563 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2564 #include "clang/Basic/LangStandards.def" 2565 Diag << NumAliases; 2566 #define LANGSTANDARD(id, name, lang, desc, features) 2567 #define LANGSTANDARD_ALIAS(id, alias) \ 2568 if (KindValue == LangStandard::lang_##id) Diag << alias; 2569 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2570 #include "clang/Basic/LangStandards.def" 2571 } 2572 } 2573 } else { 2574 // Valid standard, check to make sure language and standard are 2575 // compatible. 2576 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2577 if (!IsInputCompatibleWithStandard(IK, Std)) { 2578 Diags.Report(diag::err_drv_argument_not_allowed_with) 2579 << A->getAsString(Args) << GetInputKindName(IK); 2580 } 2581 } 2582 } 2583 2584 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2585 Opts.DllExportInlines = false; 2586 2587 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2588 StringRef Name = A->getValue(); 2589 if (Name == "full" || Name == "branch") { 2590 Opts.CFProtectionBranch = 1; 2591 } 2592 } 2593 // -cl-std only applies for OpenCL language standards. 2594 // Override the -std option in this case. 2595 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2596 LangStandard::Kind OpenCLLangStd 2597 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2598 .Cases("cl", "CL", LangStandard::lang_opencl10) 2599 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 2600 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2601 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2602 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2603 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 2604 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2605 .Default(LangStandard::lang_unspecified); 2606 2607 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2608 Diags.Report(diag::err_drv_invalid_value) 2609 << A->getAsString(Args) << A->getValue(); 2610 } 2611 else 2612 LangStd = OpenCLLangStd; 2613 } 2614 2615 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2616 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2617 if (Opts.SYCL) { 2618 // -sycl-std applies to any SYCL source, not only those containing kernels, 2619 // but also those using the SYCL API 2620 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2621 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2622 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2623 .Default(0U); 2624 2625 if (Opts.SYCLVersion == 0U) { 2626 // User has passed an invalid value to the flag, this is an error 2627 Diags.Report(diag::err_drv_invalid_value) 2628 << A->getAsString(Args) << A->getValue(); 2629 } 2630 } 2631 } 2632 2633 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2634 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2635 2636 llvm::Triple T(TargetOpts.Triple); 2637 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2638 2639 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2640 // This option should be deprecated for CL > 1.0 because 2641 // this option was added for compatibility with OpenCL 1.0. 2642 if (Args.getLastArg(OPT_cl_strict_aliasing) 2643 && Opts.OpenCLVersion > 100) { 2644 Diags.Report(diag::warn_option_invalid_ocl_version) 2645 << Opts.getOpenCLVersionTuple().getAsString() 2646 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2647 } 2648 2649 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2650 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2651 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2652 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2653 // name, as it doesn't seem a useful distinction. 2654 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2655 Opts.GNUKeywords); 2656 2657 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2658 2659 if (Args.hasArg(OPT_fno_operator_names)) 2660 Opts.CXXOperatorNames = 0; 2661 2662 if (Args.hasArg(OPT_fcuda_is_device)) 2663 Opts.CUDAIsDevice = 1; 2664 2665 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2666 Opts.CUDAAllowVariadicFunctions = 1; 2667 2668 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2669 Opts.CUDAHostDeviceConstexpr = 0; 2670 2671 if (Args.hasArg(OPT_fgpu_defer_diag)) 2672 Opts.GPUDeferDiag = 1; 2673 2674 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2675 Opts.CUDADeviceApproxTranscendentals = 1; 2676 2677 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2678 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2679 if (Opts.HIP) 2680 Opts.GPUAllowDeviceInit = 1; 2681 else 2682 Diags.Report(diag::warn_ignored_hip_only_option) 2683 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2684 } 2685 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2686 if (Opts.HIP) 2687 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2688 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2689 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2690 Diags.Report(diag::warn_ignored_hip_only_option) 2691 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2692 2693 if (Opts.ObjC) { 2694 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2695 StringRef value = arg->getValue(); 2696 if (Opts.ObjCRuntime.tryParse(value)) 2697 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2698 } 2699 2700 if (Args.hasArg(OPT_fobjc_gc_only)) 2701 Opts.setGC(LangOptions::GCOnly); 2702 else if (Args.hasArg(OPT_fobjc_gc)) 2703 Opts.setGC(LangOptions::HybridGC); 2704 else if (Args.hasArg(OPT_fobjc_arc)) { 2705 Opts.ObjCAutoRefCount = 1; 2706 if (!Opts.ObjCRuntime.allowsARC()) 2707 Diags.Report(diag::err_arc_unsupported_on_runtime); 2708 } 2709 2710 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2711 // whether the feature is actually enabled. This is predominantly 2712 // determined by -fobjc-runtime, but we allow it to be overridden 2713 // from the command line for testing purposes. 2714 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2715 Opts.ObjCWeakRuntime = 1; 2716 else 2717 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2718 2719 // ObjCWeak determines whether __weak is actually enabled. 2720 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2721 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2722 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2723 assert(!Opts.ObjCWeak); 2724 } else if (Opts.getGC() != LangOptions::NonGC) { 2725 Diags.Report(diag::err_objc_weak_with_gc); 2726 } else if (!Opts.ObjCWeakRuntime) { 2727 Diags.Report(diag::err_objc_weak_unsupported); 2728 } else { 2729 Opts.ObjCWeak = 1; 2730 } 2731 } else if (Opts.ObjCAutoRefCount) { 2732 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2733 } 2734 2735 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2736 Opts.ObjCInferRelatedResultType = 0; 2737 2738 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2739 Opts.ObjCSubscriptingLegacyRuntime = 2740 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2741 } 2742 2743 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2744 // Check that the version has 1 to 3 components and the minor and patch 2745 // versions fit in two decimal digits. 2746 VersionTuple GNUCVer; 2747 bool Invalid = GNUCVer.tryParse(A->getValue()); 2748 unsigned Major = GNUCVer.getMajor(); 2749 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2750 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2751 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2752 Diags.Report(diag::err_drv_invalid_value) 2753 << A->getAsString(Args) << A->getValue(); 2754 } 2755 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2756 } 2757 2758 if (Args.hasArg(OPT_fgnu89_inline)) { 2759 if (Opts.CPlusPlus) 2760 Diags.Report(diag::err_drv_argument_not_allowed_with) 2761 << "-fgnu89-inline" << GetInputKindName(IK); 2762 else 2763 Opts.GNUInline = 1; 2764 } 2765 2766 if (Args.hasArg(OPT_fapple_kext)) { 2767 if (!Opts.CPlusPlus) 2768 Diags.Report(diag::warn_c_kext); 2769 else 2770 Opts.AppleKext = 1; 2771 } 2772 2773 if (Args.hasArg(OPT_print_ivar_layout)) 2774 Opts.ObjCGCBitmapPrint = 1; 2775 2776 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2777 Opts.NoConstantCFStrings = 1; 2778 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2779 Opts.CFRuntime = 2780 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2781 .Cases("unspecified", "standalone", "objc", 2782 LangOptions::CoreFoundationABI::ObjectiveC) 2783 .Cases("swift", "swift-5.0", 2784 LangOptions::CoreFoundationABI::Swift5_0) 2785 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2786 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2787 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2788 2789 if (Args.hasArg(OPT_fzvector)) 2790 Opts.ZVector = 1; 2791 2792 if (Args.hasArg(OPT_pthread)) 2793 Opts.POSIXThreads = 1; 2794 2795 // The value-visibility mode defaults to "default". 2796 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2797 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2798 } else { 2799 Opts.setValueVisibilityMode(DefaultVisibility); 2800 } 2801 2802 // The type-visibility mode defaults to the value-visibility mode. 2803 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2804 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2805 } else { 2806 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2807 } 2808 2809 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2810 Opts.InlineVisibilityHidden = 1; 2811 2812 if (Args.hasArg(OPT_fvisibility_inlines_hidden_static_local_var)) 2813 Opts.VisibilityInlinesHiddenStaticLocalVar = 1; 2814 2815 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2816 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2817 2818 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2819 Opts.SetVisibilityForExternDecls = 1; 2820 2821 if (Args.hasArg(OPT_fvisibility_from_dllstorageclass)) { 2822 Opts.VisibilityFromDLLStorageClass = 1; 2823 2824 // Translate dllexport defintions to default visibility, by default. 2825 if (Arg *O = Args.getLastArg(OPT_fvisibility_dllexport_EQ)) 2826 Opts.setDLLExportVisibility(parseVisibility(O, Args, Diags)); 2827 else 2828 Opts.setDLLExportVisibility(DefaultVisibility); 2829 2830 // Translate defintions without an explict DLL storage class to hidden 2831 // visibility, by default. 2832 if (Arg *O = Args.getLastArg(OPT_fvisibility_nodllstorageclass_EQ)) 2833 Opts.setNoDLLStorageClassVisibility(parseVisibility(O, Args, Diags)); 2834 else 2835 Opts.setNoDLLStorageClassVisibility(HiddenVisibility); 2836 2837 // Translate dllimport external declarations to default visibility, by 2838 // default. 2839 if (Arg *O = Args.getLastArg(OPT_fvisibility_externs_dllimport_EQ)) 2840 Opts.setExternDeclDLLImportVisibility(parseVisibility(O, Args, Diags)); 2841 else 2842 Opts.setExternDeclDLLImportVisibility(DefaultVisibility); 2843 2844 // Translate external declarations without an explicit DLL storage class 2845 // to hidden visibility, by default. 2846 if (Arg *O = Args.getLastArg(OPT_fvisibility_externs_nodllstorageclass_EQ)) 2847 Opts.setExternDeclNoDLLStorageClassVisibility( 2848 parseVisibility(O, Args, Diags)); 2849 else 2850 Opts.setExternDeclNoDLLStorageClassVisibility(HiddenVisibility); 2851 } 2852 2853 if (Args.hasArg(OPT_ftrapv)) { 2854 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2855 // Set the handler, if one is specified. 2856 Opts.OverflowHandler = 2857 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2858 } 2859 else if (Args.hasArg(OPT_fwrapv)) 2860 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2861 2862 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2863 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2864 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2865 Opts.MSCompatibilityVersion = 0; 2866 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2867 VersionTuple VT; 2868 if (VT.tryParse(A->getValue())) 2869 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2870 << A->getValue(); 2871 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2872 VT.getMinor().getValueOr(0) * 100000 + 2873 VT.getSubminor().getValueOr(0); 2874 } 2875 2876 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2877 // is specified, or -std is set to a conforming mode. 2878 // Trigraphs are disabled by default in c++1z onwards. 2879 // For z/OS, trigraphs are enabled by default (without regard to the above). 2880 Opts.Trigraphs = 2881 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 2882 Opts.Trigraphs = 2883 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2884 2885 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2886 OPT_fno_dollars_in_identifiers, 2887 Opts.DollarIdents); 2888 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2889 Opts.setVtorDispMode( 2890 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2891 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2892 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2893 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2894 Opts.ConstStrings); 2895 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2896 using LaxKind = LangOptions::LaxVectorConversionKind; 2897 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2898 .Case("none", LaxKind::None) 2899 .Case("integer", LaxKind::Integer) 2900 .Case("all", LaxKind::All) 2901 .Default(llvm::None)) 2902 Opts.setLaxVectorConversions(*Kind); 2903 else 2904 Diags.Report(diag::err_drv_invalid_value) 2905 << A->getAsString(Args) << A->getValue(); 2906 } 2907 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2908 Opts.ThreadsafeStatics = 0; 2909 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2910 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2911 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2912 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2913 2914 // -ffixed-point 2915 Opts.FixedPoint = 2916 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2917 !Opts.CPlusPlus; 2918 Opts.PaddingOnUnsignedFixedPoint = 2919 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2920 OPT_fno_padding_on_unsigned_fixed_point, 2921 /*Default=*/false) && 2922 Opts.FixedPoint; 2923 2924 // Handle exception personalities 2925 Arg *A = Args.getLastArg( 2926 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2927 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2928 if (A) { 2929 const Option &Opt = A->getOption(); 2930 llvm::Triple T(TargetOpts.Triple); 2931 if (T.isWindowsMSVCEnvironment()) 2932 Diags.Report(diag::err_fe_invalid_exception_model) 2933 << Opt.getName() << T.str(); 2934 2935 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2936 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2937 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2938 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2939 } 2940 2941 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2942 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2943 2944 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2945 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2946 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2947 && Opts.OpenCLVersion == 200); 2948 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2949 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2950 2951 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2952 Opts.SYCLIsDevice || 2953 Args.hasArg(OPT_fconvergent_functions); 2954 2955 Opts.DoubleSquareBracketAttributes = 2956 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2957 OPT_fno_double_square_bracket_attributes, 2958 Opts.DoubleSquareBracketAttributes); 2959 2960 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2961 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2962 Opts.Modules = 2963 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2964 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2965 Opts.ModulesDeclUse = 2966 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2967 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2968 // enter a different module (eg, when building a header unit). 2969 Opts.ModulesLocalVisibility = 2970 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2971 Opts.CPlusPlusModules; 2972 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2973 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2974 Opts.ModulesSearchAll = Opts.Modules && 2975 !Args.hasArg(OPT_fno_modules_search_all) && 2976 Args.hasArg(OPT_fmodules_search_all); 2977 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2978 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2979 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2980 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2981 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2982 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2983 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2984 .Case("char", 1) 2985 .Case("short", 2) 2986 .Case("int", 4) 2987 .Default(0); 2988 if (Opts.WCharSize == 0) 2989 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2990 } 2991 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2992 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2993 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2994 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2995 if (!Opts.NoBuiltin) 2996 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2997 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2998 Opts.RelaxedTemplateTemplateArgs = 2999 Args.hasArg(OPT_frelaxed_template_template_args); 3000 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 3001 Opts.AlignedAllocation = 3002 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 3003 Opts.AlignedAllocation); 3004 Opts.AlignedAllocationUnavailable = 3005 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 3006 Opts.NewAlignOverride = 3007 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 3008 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 3009 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 3010 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 3011 << A->getValue(); 3012 Opts.NewAlignOverride = 0; 3013 } 3014 Opts.ConceptSatisfactionCaching = 3015 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 3016 if (Args.hasArg(OPT_fconcepts_ts)) 3017 Diags.Report(diag::warn_fe_concepts_ts_flag); 3018 // Recovery AST still heavily relies on dependent-type machinery. 3019 Opts.RecoveryAST = 3020 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, Opts.CPlusPlus); 3021 Opts.RecoveryASTType = Args.hasFlag( 3022 OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, Opts.CPlusPlus); 3023 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 3024 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 3025 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 3026 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 3027 Opts.InstantiationDepth = 3028 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 3029 Opts.ArrowDepth = 3030 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 3031 Opts.ConstexprCallDepth = 3032 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 3033 Opts.ConstexprStepLimit = 3034 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 3035 Opts.EnableNewConstInterp = 3036 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 3037 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 3038 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 3039 Opts.NumLargeByValueCopy = 3040 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 3041 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 3042 Opts.ObjCConstantStringClass = 3043 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 3044 Opts.ObjCDefaultSynthProperties = 3045 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 3046 Opts.EncodeExtendedBlockSig = 3047 Args.hasArg(OPT_fencode_extended_block_signature); 3048 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 3049 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 3050 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 3051 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 3052 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 3053 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3054 ? 128 3055 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3056 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 3057 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3058 Opts.ROPI = Args.hasArg(OPT_fropi); 3059 Opts.RWPI = Args.hasArg(OPT_frwpi); 3060 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3061 Opts.Static = Args.hasArg(OPT_static_define); 3062 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 3063 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 3064 || Args.hasArg(OPT_fdump_record_layouts); 3065 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 3066 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 3067 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 3068 if (Opts.FastRelaxedMath) 3069 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3070 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 3071 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 3072 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 3073 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 3074 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 3075 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 3076 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 3077 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 3078 Opts.CurrentModule = Opts.ModuleName; 3079 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 3080 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 3081 llvm::sort(Opts.ModuleFeatures); 3082 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 3083 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 3084 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 3085 // is enabled. 3086 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 3087 | Opts.NativeHalfArgsAndReturns; 3088 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 3089 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 3090 3091 Opts.ArmSveVectorBits = 3092 getLastArgIntValue(Args, options::OPT_msve_vector_bits_EQ, 0, Diags); 3093 3094 // __declspec is enabled by default for the PS4 by the driver, and also 3095 // enabled for Microsoft Extensions or Borland Extensions, here. 3096 // 3097 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 3098 // CUDA extension. However, it is required for supporting 3099 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 3100 // been rewritten in terms of something more generic, remove the Opts.CUDA 3101 // term here. 3102 Opts.DeclSpecKeyword = 3103 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 3104 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 3105 3106 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 3107 switch (llvm::StringSwitch<unsigned>(A->getValue()) 3108 .Case("target", LangOptions::ASMM_Target) 3109 .Case("no", LangOptions::ASMM_Off) 3110 .Case("yes", LangOptions::ASMM_On) 3111 .Default(255)) { 3112 default: 3113 Diags.Report(diag::err_drv_invalid_value) 3114 << "-faddress-space-map-mangling=" << A->getValue(); 3115 break; 3116 case LangOptions::ASMM_Target: 3117 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3118 break; 3119 case LangOptions::ASMM_On: 3120 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3121 break; 3122 case LangOptions::ASMM_Off: 3123 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3124 break; 3125 } 3126 } 3127 3128 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3129 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3130 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3131 A->getValue()) 3132 .Case("single", 3133 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3134 .Case("multiple", 3135 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3136 .Case("virtual", 3137 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3138 .Default(LangOptions::PPTMK_BestCase); 3139 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3140 Diags.Report(diag::err_drv_invalid_value) 3141 << "-fms-memptr-rep=" << A->getValue(); 3142 3143 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3144 } 3145 3146 // Check for MS default calling conventions being specified. 3147 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3148 LangOptions::DefaultCallingConvention DefaultCC = 3149 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3150 .Case("cdecl", LangOptions::DCC_CDecl) 3151 .Case("fastcall", LangOptions::DCC_FastCall) 3152 .Case("stdcall", LangOptions::DCC_StdCall) 3153 .Case("vectorcall", LangOptions::DCC_VectorCall) 3154 .Case("regcall", LangOptions::DCC_RegCall) 3155 .Default(LangOptions::DCC_None); 3156 if (DefaultCC == LangOptions::DCC_None) 3157 Diags.Report(diag::err_drv_invalid_value) 3158 << "-fdefault-calling-conv=" << A->getValue(); 3159 3160 llvm::Triple T(TargetOpts.Triple); 3161 llvm::Triple::ArchType Arch = T.getArch(); 3162 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3163 DefaultCC == LangOptions::DCC_StdCall) && 3164 Arch != llvm::Triple::x86; 3165 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3166 DefaultCC == LangOptions::DCC_RegCall) && 3167 !T.isX86(); 3168 if (emitError) 3169 Diags.Report(diag::err_drv_argument_not_allowed_with) 3170 << A->getSpelling() << T.getTriple(); 3171 else 3172 Opts.setDefaultCallingConv(DefaultCC); 3173 } 3174 3175 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3176 // An explicit -fno-semantic-interposition infers dso_local. 3177 Opts.ExplicitNoSemanticInterposition = 3178 Args.hasArg(OPT_fno_semantic_interposition); 3179 3180 // -mrtd option 3181 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3182 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3183 Diags.Report(diag::err_drv_argument_not_allowed_with) 3184 << A->getSpelling() << "-fdefault-calling-conv"; 3185 else { 3186 llvm::Triple T(TargetOpts.Triple); 3187 if (T.getArch() != llvm::Triple::x86) 3188 Diags.Report(diag::err_drv_argument_not_allowed_with) 3189 << A->getSpelling() << T.getTriple(); 3190 else 3191 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3192 } 3193 } 3194 3195 // Check if -fopenmp is specified and set default version to 5.0. 3196 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 50 : 0; 3197 // Check if -fopenmp-simd is specified. 3198 bool IsSimdSpecified = 3199 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3200 /*Default=*/false); 3201 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3202 Opts.OpenMPUseTLS = 3203 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3204 Opts.OpenMPIsDevice = 3205 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3206 Opts.OpenMPIRBuilder = 3207 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3208 bool IsTargetSpecified = 3209 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3210 3211 if (Opts.OpenMP || Opts.OpenMPSimd) { 3212 if (int Version = getLastArgIntValue( 3213 Args, OPT_fopenmp_version_EQ, 3214 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3215 Opts.OpenMP = Version; 3216 // Provide diagnostic when a given target is not expected to be an OpenMP 3217 // device or host. 3218 if (!Opts.OpenMPIsDevice) { 3219 switch (T.getArch()) { 3220 default: 3221 break; 3222 // Add unsupported host targets here: 3223 case llvm::Triple::nvptx: 3224 case llvm::Triple::nvptx64: 3225 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3226 << TargetOpts.Triple; 3227 break; 3228 } 3229 } 3230 } 3231 3232 // Set the flag to prevent the implementation from emitting device exception 3233 // handling code for those requiring so. 3234 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3235 Opts.OpenCLCPlusPlus) { 3236 Opts.Exceptions = 0; 3237 Opts.CXXExceptions = 0; 3238 } 3239 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3240 Opts.OpenMPCUDANumSMs = 3241 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3242 Opts.OpenMPCUDANumSMs, Diags); 3243 Opts.OpenMPCUDABlocksPerSM = 3244 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3245 Opts.OpenMPCUDABlocksPerSM, Diags); 3246 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3247 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3248 Opts.OpenMPCUDAReductionBufNum, Diags); 3249 } 3250 3251 // Prevent auto-widening the representation of loop counters during an 3252 // OpenMP collapse clause. 3253 Opts.OpenMPOptimisticCollapse = 3254 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3255 3256 // Get the OpenMP target triples if any. 3257 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3258 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3259 auto getArchPtrSize = [](const llvm::Triple &T) { 3260 if (T.isArch16Bit()) 3261 return Arch16Bit; 3262 if (T.isArch32Bit()) 3263 return Arch32Bit; 3264 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3265 return Arch64Bit; 3266 }; 3267 3268 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3269 llvm::Triple TT(A->getValue(i)); 3270 3271 if (TT.getArch() == llvm::Triple::UnknownArch || 3272 !(TT.getArch() == llvm::Triple::aarch64 || 3273 TT.getArch() == llvm::Triple::ppc || 3274 TT.getArch() == llvm::Triple::ppc64 || 3275 TT.getArch() == llvm::Triple::ppc64le || 3276 TT.getArch() == llvm::Triple::nvptx || 3277 TT.getArch() == llvm::Triple::nvptx64 || 3278 TT.getArch() == llvm::Triple::amdgcn || 3279 TT.getArch() == llvm::Triple::x86 || 3280 TT.getArch() == llvm::Triple::x86_64)) 3281 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3282 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3283 Diags.Report(diag::err_drv_incompatible_omp_arch) 3284 << A->getValue(i) << T.str(); 3285 else 3286 Opts.OMPTargetTriples.push_back(TT); 3287 } 3288 } 3289 3290 // Get OpenMP host file path if any and report if a non existent file is 3291 // found 3292 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3293 Opts.OMPHostIRFile = A->getValue(); 3294 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3295 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3296 << Opts.OMPHostIRFile; 3297 } 3298 3299 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3300 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3301 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3302 3303 // Set CUDA support for parallel execution of target regions for OpenMP target 3304 // NVPTX/AMDGCN if specified in options. 3305 Opts.OpenMPCUDATargetParallel = 3306 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3307 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3308 3309 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3310 Opts.OpenMPCUDAForceFullRuntime = 3311 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3312 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3313 3314 // Record whether the __DEPRECATED define was requested. 3315 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3316 OPT_fno_deprecated_macro, 3317 Opts.Deprecated); 3318 3319 // FIXME: Eliminate this dependency. 3320 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3321 OptSize = getOptimizationLevelSize(Args); 3322 Opts.Optimize = Opt != 0; 3323 Opts.OptimizeSize = OptSize != 0; 3324 3325 // This is the __NO_INLINE__ define, which just depends on things like the 3326 // optimization level and -fno-inline, not actually whether the backend has 3327 // inlining enabled. 3328 Opts.NoInlineDefine = !Opts.Optimize; 3329 if (Arg *InlineArg = Args.getLastArg( 3330 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3331 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3332 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3333 Opts.NoInlineDefine = true; 3334 3335 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3336 StringRef Val = A->getValue(); 3337 if (Val == "fast") 3338 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3339 else if (Val == "on") 3340 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3341 else if (Val == "off") 3342 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3343 else 3344 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3345 } 3346 3347 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3348 if (Args.hasArg(OPT_frounding_math)) { 3349 FPRM = llvm::RoundingMode::Dynamic; 3350 } 3351 Opts.setFPRoundingMode(FPRM); 3352 3353 if (Args.hasArg(OPT_ftrapping_math)) { 3354 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3355 } 3356 3357 if (Args.hasArg(OPT_fno_trapping_math)) { 3358 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3359 } 3360 3361 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3362 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3363 StringRef Val = A->getValue(); 3364 if (Val.equals("ignore")) 3365 FPEB = LangOptions::FPE_Ignore; 3366 else if (Val.equals("maytrap")) 3367 FPEB = LangOptions::FPE_MayTrap; 3368 else if (Val.equals("strict")) 3369 FPEB = LangOptions::FPE_Strict; 3370 else 3371 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3372 } 3373 Opts.setFPExceptionMode(FPEB); 3374 3375 Opts.RetainCommentsFromSystemHeaders = 3376 Args.hasArg(OPT_fretain_comments_from_system_headers); 3377 3378 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3379 switch (SSP) { 3380 default: 3381 Diags.Report(diag::err_drv_invalid_value) 3382 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3383 break; 3384 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3385 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3386 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3387 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3388 } 3389 3390 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3391 StringRef Val = A->getValue(); 3392 if (Val == "uninitialized") 3393 Opts.setTrivialAutoVarInit( 3394 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3395 else if (Val == "zero") 3396 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3397 else if (Val == "pattern") 3398 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3399 else 3400 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3401 } 3402 3403 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3404 int Val = std::stoi(A->getValue()); 3405 Opts.TrivialAutoVarInitStopAfter = Val; 3406 } 3407 3408 // Parse -fsanitize= arguments. 3409 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3410 Diags, Opts.Sanitize); 3411 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3412 Opts.SanitizeAddressFieldPadding = 3413 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3414 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3415 std::vector<std::string> systemBlacklists = 3416 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3417 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3418 systemBlacklists.begin(), 3419 systemBlacklists.end()); 3420 3421 // -fxray-instrument 3422 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3423 Opts.XRayAlwaysEmitCustomEvents = 3424 Args.hasArg(OPT_fxray_always_emit_customevents); 3425 Opts.XRayAlwaysEmitTypedEvents = 3426 Args.hasArg(OPT_fxray_always_emit_typedevents); 3427 3428 // -fxray-{always,never}-instrument= filenames. 3429 Opts.XRayAlwaysInstrumentFiles = 3430 Args.getAllArgValues(OPT_fxray_always_instrument); 3431 Opts.XRayNeverInstrumentFiles = 3432 Args.getAllArgValues(OPT_fxray_never_instrument); 3433 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3434 3435 // -fforce-emit-vtables 3436 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3437 3438 // -fallow-editor-placeholders 3439 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3440 3441 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3442 3443 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3444 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3445 3446 StringRef Ver = A->getValue(); 3447 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3448 unsigned Major, Minor = 0; 3449 3450 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3451 // y or y.0 (4 <= y <= current version). 3452 if (!VerParts.first.startswith("0") && 3453 !VerParts.first.getAsInteger(10, Major) && 3454 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3455 (Major == 3 ? VerParts.second.size() == 1 && 3456 !VerParts.second.getAsInteger(10, Minor) 3457 : VerParts.first.size() == Ver.size() || 3458 VerParts.second == "0")) { 3459 // Got a valid version number. 3460 if (Major == 3 && Minor <= 8) 3461 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3462 else if (Major <= 4) 3463 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3464 else if (Major <= 6) 3465 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3466 else if (Major <= 7) 3467 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3468 else if (Major <= 9) 3469 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3470 else if (Major <= 11) 3471 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3472 } else if (Ver != "latest") { 3473 Diags.Report(diag::err_drv_invalid_value) 3474 << A->getAsString(Args) << A->getValue(); 3475 } 3476 } 3477 3478 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3479 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3480 Opts.PCHInstantiateTemplates = Args.hasArg(OPT_fpch_instantiate_templates); 3481 3482 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3483 3484 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3485 3486 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3487 StringRef SignScope = A->getValue(); 3488 3489 if (SignScope.equals_lower("none")) 3490 Opts.setSignReturnAddressScope( 3491 LangOptions::SignReturnAddressScopeKind::None); 3492 else if (SignScope.equals_lower("all")) 3493 Opts.setSignReturnAddressScope( 3494 LangOptions::SignReturnAddressScopeKind::All); 3495 else if (SignScope.equals_lower("non-leaf")) 3496 Opts.setSignReturnAddressScope( 3497 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3498 else 3499 Diags.Report(diag::err_drv_invalid_value) 3500 << A->getAsString(Args) << SignScope; 3501 3502 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3503 StringRef SignKey = A->getValue(); 3504 if (!SignScope.empty() && !SignKey.empty()) { 3505 if (SignKey.equals_lower("a_key")) 3506 Opts.setSignReturnAddressKey( 3507 LangOptions::SignReturnAddressKeyKind::AKey); 3508 else if (SignKey.equals_lower("b_key")) 3509 Opts.setSignReturnAddressKey( 3510 LangOptions::SignReturnAddressKeyKind::BKey); 3511 else 3512 Diags.Report(diag::err_drv_invalid_value) 3513 << A->getAsString(Args) << SignKey; 3514 } 3515 } 3516 } 3517 3518 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3519 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3520 3521 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3522 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3523 3524 Opts.RelativeCXXABIVTables = 3525 Args.hasFlag(OPT_fexperimental_relative_cxx_abi_vtables, 3526 OPT_fno_experimental_relative_cxx_abi_vtables, 3527 /*default=*/false); 3528 } 3529 3530 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3531 switch (Action) { 3532 case frontend::ASTDeclList: 3533 case frontend::ASTDump: 3534 case frontend::ASTPrint: 3535 case frontend::ASTView: 3536 case frontend::EmitAssembly: 3537 case frontend::EmitBC: 3538 case frontend::EmitHTML: 3539 case frontend::EmitLLVM: 3540 case frontend::EmitLLVMOnly: 3541 case frontend::EmitCodeGenOnly: 3542 case frontend::EmitObj: 3543 case frontend::FixIt: 3544 case frontend::GenerateModule: 3545 case frontend::GenerateModuleInterface: 3546 case frontend::GenerateHeaderModule: 3547 case frontend::GeneratePCH: 3548 case frontend::GenerateInterfaceStubs: 3549 case frontend::ParseSyntaxOnly: 3550 case frontend::ModuleFileInfo: 3551 case frontend::VerifyPCH: 3552 case frontend::PluginAction: 3553 case frontend::RewriteObjC: 3554 case frontend::RewriteTest: 3555 case frontend::RunAnalysis: 3556 case frontend::TemplightDump: 3557 case frontend::MigrateSource: 3558 return false; 3559 3560 case frontend::DumpCompilerOptions: 3561 case frontend::DumpRawTokens: 3562 case frontend::DumpTokens: 3563 case frontend::InitOnly: 3564 case frontend::PrintPreamble: 3565 case frontend::PrintPreprocessedInput: 3566 case frontend::RewriteMacros: 3567 case frontend::RunPreprocessorOnly: 3568 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3569 return true; 3570 } 3571 llvm_unreachable("invalid frontend action"); 3572 } 3573 3574 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3575 DiagnosticsEngine &Diags, 3576 frontend::ActionKind Action) { 3577 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3578 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3579 Args.hasArg(OPT_pch_through_hdrstop_use); 3580 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3581 Opts.PCHThroughHeader = 3582 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3583 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3584 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3585 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3586 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3587 3588 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3589 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3590 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3591 3592 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3593 auto Split = StringRef(A).split('='); 3594 Opts.MacroPrefixMap.insert( 3595 {std::string(Split.first), std::string(Split.second)}); 3596 } 3597 3598 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3599 StringRef Value(A->getValue()); 3600 size_t Comma = Value.find(','); 3601 unsigned Bytes = 0; 3602 unsigned EndOfLine = 0; 3603 3604 if (Comma == StringRef::npos || 3605 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3606 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3607 Diags.Report(diag::err_drv_preamble_format); 3608 else { 3609 Opts.PrecompiledPreambleBytes.first = Bytes; 3610 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3611 } 3612 } 3613 3614 // Add the __CET__ macro if a CFProtection option is set. 3615 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3616 StringRef Name = A->getValue(); 3617 if (Name == "branch") 3618 Opts.addMacroDef("__CET__=1"); 3619 else if (Name == "return") 3620 Opts.addMacroDef("__CET__=2"); 3621 else if (Name == "full") 3622 Opts.addMacroDef("__CET__=3"); 3623 } 3624 3625 // Add macros from the command line. 3626 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3627 if (A->getOption().matches(OPT_D)) 3628 Opts.addMacroDef(A->getValue()); 3629 else 3630 Opts.addMacroUndef(A->getValue()); 3631 } 3632 3633 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3634 3635 // Add the ordered list of -includes. 3636 for (const auto *A : Args.filtered(OPT_include)) 3637 Opts.Includes.emplace_back(A->getValue()); 3638 3639 for (const auto *A : Args.filtered(OPT_chain_include)) 3640 Opts.ChainedIncludes.emplace_back(A->getValue()); 3641 3642 for (const auto *A : Args.filtered(OPT_remap_file)) { 3643 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3644 3645 if (Split.second.empty()) { 3646 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3647 continue; 3648 } 3649 3650 Opts.addRemappedFile(Split.first, Split.second); 3651 } 3652 3653 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3654 StringRef Name = A->getValue(); 3655 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3656 .Case("libc++", ARCXX_libcxx) 3657 .Case("libstdc++", ARCXX_libstdcxx) 3658 .Case("none", ARCXX_nolib) 3659 .Default(~0U); 3660 if (Library == ~0U) 3661 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3662 else 3663 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3664 } 3665 3666 // Always avoid lexing editor placeholders when we're just running the 3667 // preprocessor as we never want to emit the 3668 // "editor placeholder in source file" error in PP only mode. 3669 if (isStrictlyPreprocessorAction(Action)) 3670 Opts.LexEditorPlaceholders = false; 3671 3672 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3673 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3674 } 3675 3676 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3677 ArgList &Args, 3678 frontend::ActionKind Action) { 3679 if (isStrictlyPreprocessorAction(Action)) 3680 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3681 else 3682 Opts.ShowCPP = 0; 3683 3684 Opts.ShowComments = Args.hasArg(OPT_C); 3685 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3686 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3687 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3688 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3689 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3690 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3691 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3692 } 3693 3694 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3695 DiagnosticsEngine &Diags) { 3696 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3697 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3698 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3699 StringRef Value = A->getValue(); 3700 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3701 .Case("default", llvm::EABI::Default) 3702 .Case("4", llvm::EABI::EABI4) 3703 .Case("5", llvm::EABI::EABI5) 3704 .Case("gnu", llvm::EABI::GNU) 3705 .Default(llvm::EABI::Unknown); 3706 if (EABIVersion == llvm::EABI::Unknown) 3707 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3708 << Value; 3709 else 3710 Opts.EABIVersion = EABIVersion; 3711 } 3712 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3713 Opts.TuneCPU = std::string(Args.getLastArgValue(OPT_tune_cpu)); 3714 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3715 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3716 Opts.LinkerVersion = 3717 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3718 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3719 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3720 Opts.NVPTXUseShortPointers = Args.hasFlag( 3721 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3722 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3723 llvm::VersionTuple Version; 3724 if (Version.tryParse(A->getValue())) 3725 Diags.Report(diag::err_drv_invalid_value) 3726 << A->getAsString(Args) << A->getValue(); 3727 else 3728 Opts.SDKVersion = Version; 3729 } 3730 } 3731 3732 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 3733 DiagnosticsEngine &Diags) { 3734 #define OPTION_WITH_MARSHALLING( \ 3735 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3736 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3737 TYPE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 3738 { \ 3739 this->KEYPATH = MERGER(this->KEYPATH, DEFAULT_VALUE); \ 3740 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, Args, Diags)) \ 3741 this->KEYPATH = MERGER(this->KEYPATH, static_cast<TYPE>(*MaybeValue)); \ 3742 } 3743 3744 #include "clang/Driver/Options.inc" 3745 #undef OPTION_WITH_MARSHALLING 3746 return true; 3747 } 3748 3749 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3750 ArrayRef<const char *> CommandLineArgs, 3751 DiagnosticsEngine &Diags, 3752 const char *Argv0) { 3753 bool Success = true; 3754 3755 // Parse the arguments. 3756 const OptTable &Opts = getDriverOptTable(); 3757 const unsigned IncludedFlagsBitmask = options::CC1Option; 3758 unsigned MissingArgIndex, MissingArgCount; 3759 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3760 MissingArgCount, IncludedFlagsBitmask); 3761 LangOptions &LangOpts = *Res.getLangOpts(); 3762 3763 // Check for missing argument error. 3764 if (MissingArgCount) { 3765 Diags.Report(diag::err_drv_missing_argument) 3766 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3767 Success = false; 3768 } 3769 3770 // Issue errors on unknown arguments. 3771 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3772 auto ArgString = A->getAsString(Args); 3773 std::string Nearest; 3774 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3775 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3776 else 3777 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3778 << ArgString << Nearest; 3779 Success = false; 3780 } 3781 3782 Success &= Res.parseSimpleArgs(Args, Diags); 3783 3784 llvm::sys::Process::UseANSIEscapeCodes( 3785 Res.DiagnosticOpts->UseANSIEscapeCodes); 3786 3787 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3788 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3789 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3790 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3791 Res.getDependencyOutputOpts().Targets.empty()) { 3792 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3793 Success = false; 3794 } 3795 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3796 /*DefaultDiagColor=*/false); 3797 ParseCommentArgs(LangOpts.CommentOpts, Args); 3798 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3799 // FIXME: We shouldn't have to pass the DashX option around here 3800 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3801 LangOpts.IsHeaderFile); 3802 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3803 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3804 Res.getTargetOpts(), Res.getFrontendOpts()); 3805 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3806 Res.getFileSystemOpts().WorkingDir); 3807 llvm::Triple T(Res.getTargetOpts().Triple); 3808 if (DashX.getFormat() == InputKind::Precompiled || 3809 DashX.getLanguage() == Language::LLVM_IR) { 3810 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3811 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3812 // what the input type is. 3813 if (Args.hasArg(OPT_fobjc_arc)) 3814 LangOpts.ObjCAutoRefCount = 1; 3815 // PIClevel and PIELevel are needed during code generation and this should be 3816 // set regardless of the input type. 3817 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3818 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3819 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3820 Diags, LangOpts.Sanitize); 3821 } else { 3822 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3823 // FIXME: Should we really be calling this for an Language::Asm input? 3824 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3825 Res.getPreprocessorOpts(), Diags); 3826 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3827 LangOpts.ObjCExceptions = 1; 3828 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3829 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3830 // preprocessed input as we don't expect it to be used with -std=libc++ 3831 // anyway. 3832 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3833 } 3834 } 3835 3836 LangOpts.FunctionAlignment = 3837 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3838 3839 if (LangOpts.CUDA) { 3840 // During CUDA device-side compilation, the aux triple is the 3841 // triple used for host compilation. 3842 if (LangOpts.CUDAIsDevice) 3843 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3844 } 3845 3846 // Set the triple of the host for OpenMP device compile. 3847 if (LangOpts.OpenMPIsDevice) 3848 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3849 3850 // FIXME: Override value name discarding when asan or msan is used because the 3851 // backend passes depend on the name of the alloca in order to print out 3852 // names. 3853 Res.getCodeGenOpts().DiscardValueNames &= 3854 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3855 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3856 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3857 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3858 3859 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3860 Res.getFrontendOpts().ProgramAction); 3861 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3862 Res.getFrontendOpts().ProgramAction); 3863 3864 // Turn on -Wspir-compat for SPIR target. 3865 if (T.isSPIR()) 3866 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3867 3868 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3869 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3870 !Res.getLangOpts()->Sanitize.empty()) { 3871 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3872 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3873 } 3874 3875 // Store the command-line for using in the CodeView backend. 3876 Res.getCodeGenOpts().Argv0 = Argv0; 3877 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 3878 3879 return Success; 3880 } 3881 3882 std::string CompilerInvocation::getModuleHash() const { 3883 // Note: For QoI reasons, the things we use as a hash here should all be 3884 // dumped via the -module-info flag. 3885 using llvm::hash_code; 3886 using llvm::hash_value; 3887 using llvm::hash_combine; 3888 using llvm::hash_combine_range; 3889 3890 // Start the signature with the compiler version. 3891 // FIXME: We'd rather use something more cryptographically sound than 3892 // CityHash, but this will do for now. 3893 hash_code code = hash_value(getClangFullRepositoryVersion()); 3894 3895 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3896 // and getClangFullRepositoryVersion() doesn't include git revision. 3897 code = hash_combine(code, serialization::VERSION_MAJOR, 3898 serialization::VERSION_MINOR); 3899 3900 // Extend the signature with the language options 3901 #define LANGOPT(Name, Bits, Default, Description) \ 3902 code = hash_combine(code, LangOpts->Name); 3903 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3904 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3905 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3906 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3907 #include "clang/Basic/LangOptions.def" 3908 3909 for (StringRef Feature : LangOpts->ModuleFeatures) 3910 code = hash_combine(code, Feature); 3911 3912 code = hash_combine(code, LangOpts->ObjCRuntime); 3913 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 3914 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 3915 3916 // Extend the signature with the target options. 3917 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3918 TargetOpts->TuneCPU, TargetOpts->ABI); 3919 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3920 code = hash_combine(code, FeatureAsWritten); 3921 3922 // Extend the signature with preprocessor options. 3923 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3924 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3925 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3926 3927 for (const auto &I : getPreprocessorOpts().Macros) { 3928 // If we're supposed to ignore this macro for the purposes of modules, 3929 // don't put it into the hash. 3930 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3931 // Check whether we're ignoring this macro. 3932 StringRef MacroDef = I.first; 3933 if (hsOpts.ModulesIgnoreMacros.count( 3934 llvm::CachedHashString(MacroDef.split('=').first))) 3935 continue; 3936 } 3937 3938 code = hash_combine(code, I.first, I.second); 3939 } 3940 3941 // Extend the signature with the sysroot and other header search options. 3942 code = hash_combine(code, hsOpts.Sysroot, 3943 hsOpts.ModuleFormat, 3944 hsOpts.UseDebugInfo, 3945 hsOpts.UseBuiltinIncludes, 3946 hsOpts.UseStandardSystemIncludes, 3947 hsOpts.UseStandardCXXIncludes, 3948 hsOpts.UseLibcxx, 3949 hsOpts.ModulesValidateDiagnosticOptions); 3950 code = hash_combine(code, hsOpts.ResourceDir); 3951 3952 if (hsOpts.ModulesStrictContextHash) { 3953 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3954 hsOpts.SystemHeaderPrefixes.end()); 3955 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3956 hsOpts.UserEntries.end()); 3957 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3958 hsOpts.UserEntries.size(), UEC); 3959 3960 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3961 #define DIAGOPT(Name, Bits, Default) \ 3962 code = hash_combine(code, diagOpts.Name); 3963 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3964 code = hash_combine(code, diagOpts.get##Name()); 3965 #include "clang/Basic/DiagnosticOptions.def" 3966 #undef DIAGOPT 3967 #undef ENUM_DIAGOPT 3968 } 3969 3970 // Extend the signature with the user build path. 3971 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3972 3973 // Extend the signature with the module file extensions. 3974 const FrontendOptions &frontendOpts = getFrontendOpts(); 3975 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3976 code = ext->hashExtension(code); 3977 } 3978 3979 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3980 // affects the debug info in the PCM. 3981 if (getCodeGenOpts().DebugTypeExtRefs) 3982 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3983 code = hash_combine(code, KeyValue.first, KeyValue.second); 3984 3985 // Extend the signature with the enabled sanitizers, if at least one is 3986 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3987 SanitizerSet SanHash = LangOpts->Sanitize; 3988 SanHash.clear(getPPTransparentSanitizers()); 3989 if (!SanHash.empty()) 3990 code = hash_combine(code, SanHash.Mask); 3991 3992 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3993 } 3994 3995 void CompilerInvocation::generateCC1CommandLine( 3996 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 3997 #define OPTION_WITH_MARSHALLING( \ 3998 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3999 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4000 TYPE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 4001 if (((FLAGS) & options::CC1Option) && \ 4002 (ALWAYS_EMIT || EXTRACTOR(this->KEYPATH) != (DEFAULT_VALUE))) { \ 4003 if (Option::KIND##Class == Option::FlagClass) { \ 4004 Args.push_back(SPELLING); \ 4005 } \ 4006 if (Option::KIND##Class == Option::SeparateClass) { \ 4007 Args.push_back(SPELLING); \ 4008 DENORMALIZER(Args, SA, TABLE_INDEX, EXTRACTOR(this->KEYPATH)); \ 4009 } \ 4010 } 4011 4012 #include "clang/Driver/Options.inc" 4013 #undef OPTION_WITH_MARSHALLING 4014 } 4015 4016 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4017 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4018 DiagnosticsEngine &Diags) { 4019 return createVFSFromCompilerInvocation(CI, Diags, 4020 llvm::vfs::getRealFileSystem()); 4021 } 4022 4023 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4024 clang::createVFSFromCompilerInvocation( 4025 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4026 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4027 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4028 return BaseFS; 4029 4030 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4031 // earlier vfs files are on the bottom 4032 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4033 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4034 Result->getBufferForFile(File); 4035 if (!Buffer) { 4036 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4037 continue; 4038 } 4039 4040 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4041 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4042 /*DiagContext*/ nullptr, Result); 4043 if (!FS) { 4044 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4045 continue; 4046 } 4047 4048 Result = FS; 4049 } 4050 return Result; 4051 } 4052